[Buildroot] [PATCH v2 00/23] Splitting the toolchain-external package

[Buildroot] [PATCH v2 00/23] Splitting the toolchain-external package

[Romain Naour]

Hi All,

Here is the second version of the toolchain-external package infra which
was started by Thomas Petazzoni last year. This new infra will clearly
separate the common external toolchain logic from the
toolchain-specific details and generally make the external toolchain
code hopefully easier to maintain.

The four first patches change all the functions used in
INSTALL_STAGING_CMDS and INSTALL_TARGET_CMDS to take more arguments
rather than using global variables.

Then all toolchain packages are introduced but are not yet used since
the new toolchain-external infra will be added in the final patch.

The final patch introduce the new toolchain external package infra
(see it's commit log for more information).

This second version take into acount the Arnout and Thomas review (Thanks).

Best regards,
Romain

Romain Naour (10):
  toolchain-external: TOOLCHAIN_EXTERNAL_CREATE_*_LIB_SYMLINK: use
    arguments instead of global variables
  toolchain-external: TOOLCHAIN_EXTERNAL_INSTALL_*_LIBS: use arguments
    instead of global variables
  toolchain-external: TOOLCHAIN_EXTERNAL_INSTALL_WRAPPER: use arguments
    instead of global variables
  toolchain-external: TOOLCHAIN_EXTERNAL_INSTALL_TARGET_GDBSERVER: use
    arguments instead of global variables
  toolchain-external-arago-armv5te: new package
  toolchain-external-linaro-armeb: new package
  toolchain-external-codesourcery-amd64: new package
  toolchain-external-codescape-img-mips: new package
  toolchain-external-codescape-mti-mips: new package
  toolchain-external: introduce and use external toolchain infra

Thomas Petazzoni (13):
  toolchain-external-blackfin-uclinux: new package
  toolchain-external-arago-armv7a: new package
  toolchain-external-custom: new package
  toolchain-external-linaro-aarch64: new package
  toolchain-external-linaro-arm: new package
  toolchain-external-musl-cross: new package
  toolchain-external-codesourcery-aarch64: new package
  toolchain-external-codesourcery-arm: new package
  toolchain-external-codesourcery-mips: new package
  toolchain-external-codesourcery-niosII: new package
  toolchain-external-codesourcery-sh: new package
  toolchain-external-codesourcery-x86: new package
  toolchain-external-synopsys-arc: new package

 package/Makefile.in                                |   2 +-
 package/wine/wine.mk                               |   2 +-
 toolchain/toolchain-external/Config.in             | 982 +--------------------
 ...chain-external.mk => pkg-toolchain-external.mk} | 848 ++++++++----------
 .../toolchain-external-arago-armv5te/Config.in     |  19 +
 .../Config.in.options                              |   6 +
 .../toolchain-external-arago-armv5te.hash          |   3 +
 .../toolchain-external-arago-armv5te.mk            |  23 +
 .../toolchain-external-arago-armv7a/Config.in      |  24 +
 .../Config.in.options                              |   6 +
 .../toolchain-external-arago-armv7a.hash           |   3 +
 .../toolchain-external-arago-armv7a.mk             |  23 +
 .../toolchain-external-blackfin-uclinux/Config.in  |  17 +
 .../Config.in.options                              |   6 +
 .../toolchain-external-blackfin-uclinux.hash       |   3 +
 .../toolchain-external-blackfin-uclinux.mk         |  36 +
 .../Config.in                                      |  62 ++
 .../Config.in.options                              |   6 +
 .../toolchain-external-codescape-img-mips.hash     |   3 +
 .../toolchain-external-codescape-img-mips.mk       |  48 +
 .../Config.in                                      |  73 ++
 .../Config.in.options                              |   6 +
 .../toolchain-external-codescape-mti-mips.hash     |   3 +
 .../toolchain-external-codescape-mti-mips.mk       |  48 +
 .../Config.in                                      |  17 +
 .../Config.in.options                              |   6 +
 .../toolchain-external-codesourcery-aarch64.hash   |   3 +
 .../toolchain-external-codesourcery-aarch64.mk     |  23 +
 .../Config.in                                      |  24 +
 .../Config.in.options                              |   6 +
 .../toolchain-external-codesourcery-amd64.hash     |   3 +
 .../toolchain-external-codesourcery-amd64.mk       |  13 +
 .../toolchain-external-codesourcery-arm/Config.in  |  33 +
 .../Config.in.options                              |   6 +
 .../toolchain-external-codesourcery-arm.hash       |   3 +
 .../toolchain-external-codesourcery-arm.mk         |  14 +
 .../toolchain-external-codesourcery-mips/Config.in |  93 ++
 .../Config.in.options                              |   6 +
 .../toolchain-external-codesourcery-mips.hash      |   3 +
 .../toolchain-external-codesourcery-mips.mk        |  14 +
 .../Config.in                                      |  17 +
 .../Config.in.options                              |   6 +
 .../toolchain-external-codesourcery-niosII.hash    |   3 +
 .../toolchain-external-codesourcery-niosII.mk      |  14 +
 .../toolchain-external-codesourcery-sh/Config.in   |  25 +
 .../Config.in.options                              |   6 +
 .../toolchain-external-codesourcery-sh.hash        |   3 +
 .../toolchain-external-codesourcery-sh.mk          |  14 +
 .../toolchain-external-codesourcery-x86/Config.in  |  29 +
 .../Config.in.options                              |   6 +
 .../toolchain-external-codesourcery-x86.hash       |   3 +
 .../toolchain-external-codesourcery-x86.mk         |  13 +
 .../toolchain-external-custom/Config.in            |   5 +
 .../toolchain-external-custom/Config.in.options    | 331 +++++++
 .../toolchain-external-custom.mk                   |  16 +
 .../toolchain-external-linaro-aarch64/Config.in    |  15 +
 .../Config.in.options                              |   6 +
 .../toolchain-external-linaro-aarch64.hash         |   3 +
 .../toolchain-external-linaro-aarch64.mk           |  17 +
 .../toolchain-external-linaro-arm/Config.in        |  27 +
 .../Config.in.options                              |   6 +
 .../toolchain-external-linaro-arm.hash             |   3 +
 .../toolchain-external-linaro-arm.mk               |  17 +
 .../toolchain-external-linaro-armeb/Config.in      |  26 +
 .../Config.in.options                              |   6 +
 .../toolchain-external-linaro-armeb.hash           |   3 +
 .../toolchain-external-linaro-armeb.mk             |  17 +
 .../toolchain-external-musl-cross/Config.in        |  30 +
 .../Config.in.options                              |   6 +
 .../toolchain-external-musl-cross.hash             |  12 +
 .../toolchain-external-musl-cross.mk               |  36 +
 .../toolchain-external-synopsys-arc/Config.in      |  20 +
 .../Config.in.options                              |   6 +
 .../toolchain-external-synopsys-arc.hash           |   5 +
 .../toolchain-external-synopsys-arc.mk             |  26 +
 .../toolchain-external/toolchain-external.hash     |  67 --
 toolchain/toolchain-external/toolchain-external.mk | 797 +----------------
 77 files changed, 1877 insertions(+), 2284 deletions(-)
 copy toolchain/toolchain-external/{toolchain-external.mk => pkg-toolchain-external.mk} (50%)
 create mode 100644 toolchain/toolchain-external/toolchain-external-arago-armv5te/Config.in
 create mode 100644 toolchain/toolchain-external/toolchain-external-arago-armv5te/Config.in.options
 create mode 100644 toolchain/toolchain-external/toolchain-external-arago-armv5te/toolchain-external-arago-armv5te.hash
 create mode 100644 toolchain/toolchain-external/toolchain-external-arago-armv5te/toolchain-external-arago-armv5te.mk
 create mode 100644 toolchain/toolchain-external/toolchain-external-arago-armv7a/Config.in
 create mode 100644 toolchain/toolchain-external/toolchain-external-arago-armv7a/Config.in.options
 create mode 100644 toolchain/toolchain-external/toolchain-external-arago-armv7a/toolchain-external-arago-armv7a.hash
 create mode 100644 toolchain/toolchain-external/toolchain-external-arago-armv7a/toolchain-external-arago-armv7a.mk
 create mode 100644 toolchain/toolchain-external/toolchain-external-blackfin-uclinux/Config.in
 create mode 100644 toolchain/toolchain-external/toolchain-external-blackfin-uclinux/Config.in.options
 create mode 100644 toolchain/toolchain-external/toolchain-external-blackfin-uclinux/toolchain-external-blackfin-uclinux.hash
 create mode 100644 toolchain/toolchain-external/toolchain-external-blackfin-uclinux/toolchain-external-blackfin-uclinux.mk
 create mode 100644 toolchain/toolchain-external/toolchain-external-codescape-img-mips/Config.in
 create mode 100644 toolchain/toolchain-external/toolchain-external-codescape-img-mips/Config.in.options
 create mode 100644 toolchain/toolchain-external/toolchain-external-codescape-img-mips/toolchain-external-codescape-img-mips.hash
 create mode 100644 toolchain/toolchain-external/toolchain-external-codescape-img-mips/toolchain-external-codescape-img-mips.mk
 create mode 100644 toolchain/toolchain-external/toolchain-external-codescape-mti-mips/Config.in
 create mode 100644 toolchain/toolchain-external/toolchain-external-codescape-mti-mips/Config.in.options
 create mode 100644 toolchain/toolchain-external/toolchain-external-codescape-mti-mips/toolchain-external-codescape-mti-mips.hash
 create mode 100644 toolchain/toolchain-external/toolchain-external-codescape-mti-mips/toolchain-external-codescape-mti-mips.mk
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-aarch64/Config.in
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-aarch64/Config.in.options
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-aarch64/toolchain-external-codesourcery-aarch64.hash
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-aarch64/toolchain-external-codesourcery-aarch64.mk
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-amd64/Config.in
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-amd64/Config.in.options
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-amd64/toolchain-external-codesourcery-amd64.hash
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-amd64/toolchain-external-codesourcery-amd64.mk
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-arm/Config.in
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-arm/Config.in.options
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-arm/toolchain-external-codesourcery-arm.hash
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-arm/toolchain-external-codesourcery-arm.mk
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-mips/Config.in
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-mips/Config.in.options
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-mips/toolchain-external-codesourcery-mips.hash
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-mips/toolchain-external-codesourcery-mips.mk
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-niosII/Config.in
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-niosII/Config.in.options
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-niosII/toolchain-external-codesourcery-niosII.hash
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-niosII/toolchain-external-codesourcery-niosII.mk
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-sh/Config.in
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-sh/Config.in.options
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-sh/toolchain-external-codesourcery-sh.hash
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-sh/toolchain-external-codesourcery-sh.mk
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-x86/Config.in
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-x86/Config.in.options
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-x86/toolchain-external-codesourcery-x86.hash
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-x86/toolchain-external-codesourcery-x86.mk
 create mode 100644 toolchain/toolchain-external/toolchain-external-custom/Config.in
 create mode 100644 toolchain/toolchain-external/toolchain-external-custom/Config.in.options
 create mode 100644 toolchain/toolchain-external/toolchain-external-custom/toolchain-external-custom.mk
 create mode 100644 toolchain/toolchain-external/toolchain-external-linaro-aarch64/Config.in
 create mode 100644 toolchain/toolchain-external/toolchain-external-linaro-aarch64/Config.in.options
 create mode 100644 toolchain/toolchain-external/toolchain-external-linaro-aarch64/toolchain-external-linaro-aarch64.hash
 create mode 100644 toolchain/toolchain-external/toolchain-external-linaro-aarch64/toolchain-external-linaro-aarch64.mk
 create mode 100644 toolchain/toolchain-external/toolchain-external-linaro-arm/Config.in
 create mode 100644 toolchain/toolchain-external/toolchain-external-linaro-arm/Config.in.options
 create mode 100644 toolchain/toolchain-external/toolchain-external-linaro-arm/toolchain-external-linaro-arm.hash
 create mode 100644 toolchain/toolchain-external/toolchain-external-linaro-arm/toolchain-external-linaro-arm.mk
 create mode 100644 toolchain/toolchain-external/toolchain-external-linaro-armeb/Config.in
 create mode 100644 toolchain/toolchain-external/toolchain-external-linaro-armeb/Config.in.options
 create mode 100644 toolchain/toolchain-external/toolchain-external-linaro-armeb/toolchain-external-linaro-armeb.hash
 create mode 100644 toolchain/toolchain-external/toolchain-external-linaro-armeb/toolchain-external-linaro-armeb.mk
 create mode 100644 toolchain/toolchain-external/toolchain-external-musl-cross/Config.in
 create mode 100644 toolchain/toolchain-external/toolchain-external-musl-cross/Config.in.options
 create mode 100644 toolchain/toolchain-external/toolchain-external-musl-cross/toolchain-external-musl-cross.hash
 create mode 100644 toolchain/toolchain-external/toolchain-external-musl-cross/toolchain-external-musl-cross.mk
 create mode 100644 toolchain/toolchain-external/toolchain-external-synopsys-arc/Config.in
 create mode 100644 toolchain/toolchain-external/toolchain-external-synopsys-arc/Config.in.options
 create mode 100644 toolchain/toolchain-external/toolchain-external-synopsys-arc/toolchain-external-synopsys-arc.hash
 create mode 100644 toolchain/toolchain-external/toolchain-external-synopsys-arc/toolchain-external-synopsys-arc.mk
 delete mode 100644 toolchain/toolchain-external/toolchain-external.hash

-- 
2.5.5

[Buildroot] [PATCH v2 01/23] toolchain-external: TOOLCHAIN_EXTERNAL_CREATE_*_LIB_SYMLINK: use arguments instead of global variables

[Romain Naour]

A new external toolchain package infrastructure will be introduced in a
followup patch, so TOOLCHAIN_EXTERNAL_{CC,CFLAGS...} global variables
will no longer exist. Instead, each external-toolchain packages will
provide it's own <toolchain-external-name>_{CC,CFLAGS...} variables.

So additional arguments are needed to provide CC and CFLAG when calling
TOOLCHAIN_EXTERNAL_CREATE_*_LIB_SYMLINK.

Signed-off-by: Romain Naour <romain.naour@gmail.com>
---
v2: rework commit log/title (Arnout)
---
 toolchain/toolchain-external/toolchain-external.mk | 18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/toolchain/toolchain-external/toolchain-external.mk b/toolchain/toolchain-external/toolchain-external.mk
index b7a36be..d383d5f 100644
--- a/toolchain/toolchain-external/toolchain-external.mk
+++ b/toolchain/toolchain-external/toolchain-external.mk
@@ -554,20 +554,28 @@ endif
 # (as appropriate)
 #
 # $1: destination directory (TARGET_DIR / STAGING_DIR)
+# $2: toolchain CC
+# $3: toolchain CFLAGS
 create_lib_symlinks = \
        $(Q)DESTDIR="$(strip $1)" ; \
-       ARCH_LIB_DIR="$(call toolchain_find_libdir,$(TOOLCHAIN_EXTERNAL_CC) $(TOOLCHAIN_EXTERNAL_CFLAGS))" ; \
+       TOOLCHAIN_CC="$(strip $2)" ; \
+       TOOLCHAIN_CFLAGS="$(strip $3)" ; \
+       ARCH_LIB_DIR="$(call toolchain_find_libdir,$${TOOLCHAIN_CC} $${TOOLCHAIN_CFLAGS})" ; \
        if [ ! -e "$${DESTDIR}/$${ARCH_LIB_DIR}" -a ! -e "$${DESTDIR}/usr/$${ARCH_LIB_DIR}" ]; then \
                ln -snf lib "$${DESTDIR}/$${ARCH_LIB_DIR}" ; \
                ln -snf lib "$${DESTDIR}/usr/$${ARCH_LIB_DIR}" ; \
        fi
 
+# $1: toolchain CC
+# $2: toolchain CFLAGS
 define TOOLCHAIN_EXTERNAL_CREATE_STAGING_LIB_SYMLINK
-       $(call create_lib_symlinks,$(STAGING_DIR))
+       $(call create_lib_symlinks,$(STAGING_DIR),$(1),$(2))
 endef
 
+# $1: toolchain CC
+# $2: toolchain CFLAGS
 define TOOLCHAIN_EXTERNAL_CREATE_TARGET_LIB_SYMLINK
-       $(call create_lib_symlinks,$(TARGET_DIR))
+       $(call create_lib_symlinks,$(TARGET_DIR),$(1),$(2))
 endef
 
 # Integration of the toolchain into Buildroot: find the main sysroot
@@ -781,7 +789,7 @@ TOOLCHAIN_EXTERNAL_BUILD_CMDS = $(TOOLCHAIN_WRAPPER_BUILD)
 
 define TOOLCHAIN_EXTERNAL_INSTALL_STAGING_CMDS
 	$(TOOLCHAIN_WRAPPER_INSTALL)
-	$(TOOLCHAIN_EXTERNAL_CREATE_STAGING_LIB_SYMLINK)
+	$(call TOOLCHAIN_EXTERNAL_CREATE_STAGING_LIB_SYMLINK,$(TOOLCHAIN_EXTERNAL_CC),$(TOOLCHAIN_EXTERNAL_CFLAGS))
 	$(TOOLCHAIN_EXTERNAL_INSTALL_SYSROOT_LIBS)
 	$(TOOLCHAIN_EXTERNAL_INSTALL_SYSROOT_LIBS_BFIN_FDPIC)
 	$(TOOLCHAIN_EXTERNAL_INSTALL_WRAPPER)
@@ -792,7 +800,7 @@ endef
 # and the target directory, we do everything within the
 # install-staging step, arbitrarily.
 define TOOLCHAIN_EXTERNAL_INSTALL_TARGET_CMDS
-	$(TOOLCHAIN_EXTERNAL_CREATE_TARGET_LIB_SYMLINK)
+	$(call TOOLCHAIN_EXTERNAL_CREATE_TARGET_LIB_SYMLINK,$(TOOLCHAIN_EXTERNAL_CC),$(TOOLCHAIN_EXTERNAL_CFLAGS))
 	$(TOOLCHAIN_EXTERNAL_INSTALL_TARGET_LIBS)
 	$(TOOLCHAIN_EXTERNAL_INSTALL_TARGET_GDBSERVER)
 	$(TOOLCHAIN_EXTERNAL_INSTALL_TARGET_BFIN_FDPIC)
-- 
2.5.5

[Buildroot] [PATCH v2 02/23] toolchain-external: TOOLCHAIN_EXTERNAL_INSTALL_*_LIBS: use arguments instead of global variables

[Romain Naour]

A new external toolchain package infrastructure will be introduced in a
followup patch, so TOOLCHAIN_EXTERNAL_{CC,CFLAGS...} global variables
will no longer exist. Instead, each external toolchain packages will
provide it's own <toolchain-external-name>_{CC,CFLAGS...} variables.

So additional arguments are needed to provide CC and CFLAG when calling
TOOLCHAIN_EXTERNAL_INSTALL_SYSROOT_LIBS,
TOOLCHAIN_EXTERNAL_INSTALL_SYSROOT_LIBS_BFIN_FDPIC and
TOOLCHAIN_EXTERNAL_INSTALL_TARGET_BFIN_FLAT

Also, an additional argument is needed to provide LIBS (the shared
libraries list) when calling TOOLCHAIN_EXTERNAL_INSTALL_TARGET_LIBS to
copy the external toolchain libraries to target.

Signed-off-by: Romain Naour <romain.naour@gmail.com>
---
v2: rework commit log/title (Arnout)
---
 toolchain/toolchain-external/toolchain-external.mk | 42 +++++++++++++---------
 1 file changed, 25 insertions(+), 17 deletions(-)

diff --git a/toolchain/toolchain-external/toolchain-external.mk b/toolchain/toolchain-external/toolchain-external.mk
index d383d5f..ddf77aa 100644
--- a/toolchain/toolchain-external/toolchain-external.mk
+++ b/toolchain/toolchain-external/toolchain-external.mk
@@ -630,10 +630,11 @@ endef
 # Buildroot, Crosstool-NG, CodeSourcery and Linaro
 # before doing any modification on the below logic.
 
+# $1: toolchain LIBS
 ifeq ($(BR2_STATIC_LIBS),)
 define TOOLCHAIN_EXTERNAL_INSTALL_TARGET_LIBS
 	$(Q)$(call MESSAGE,"Copying external toolchain libraries to target...")
-	$(Q)for libs in $(TOOLCHAIN_EXTERNAL_LIBS); do \
+	$(Q)for libs in $(1); do \
 		$(call copy_toolchain_lib_root,$$libs); \
 	done
 endef
@@ -662,13 +663,15 @@ define TOOLCHAIN_EXTERNAL_INSTALL_TARGET_GDBSERVER
 endef
 endif
 
+# $1: toolchain CC
+# $2: toolchain CFLAGS
 define TOOLCHAIN_EXTERNAL_INSTALL_SYSROOT_LIBS
-	$(Q)SYSROOT_DIR="$(call toolchain_find_sysroot,$(TOOLCHAIN_EXTERNAL_CC))" ; \
-	ARCH_SYSROOT_DIR="$(call toolchain_find_sysroot,$(TOOLCHAIN_EXTERNAL_CC) $(TOOLCHAIN_EXTERNAL_CFLAGS))" ; \
-	ARCH_LIB_DIR="$(call toolchain_find_libdir,$(TOOLCHAIN_EXTERNAL_CC) $(TOOLCHAIN_EXTERNAL_CFLAGS))" ; \
+	$(Q)SYSROOT_DIR="$(call toolchain_find_sysroot,$(1))" ; \
+	ARCH_SYSROOT_DIR="$(call toolchain_find_sysroot,$(1) $(2))" ; \
+	ARCH_LIB_DIR="$(call toolchain_find_libdir,$(1) $(2))" ; \
 	SUPPORT_LIB_DIR="" ; \
 	if test `find $${ARCH_SYSROOT_DIR} -name 'libstdc++.a' | wc -l` -eq 0 ; then \
-		LIBSTDCPP_A_LOCATION=$$(LANG=C $(TOOLCHAIN_EXTERNAL_CC) $(TOOLCHAIN_EXTERNAL_CFLAGS) -print-file-name=libstdc++.a) ; \
+		LIBSTDCPP_A_LOCATION=$$(LANG=C $(1) $(2) -print-file-name=libstdc++.a) ; \
 		if [ -e "$${LIBSTDCPP_A_LOCATION}" ]; then \
 			SUPPORT_LIB_DIR=`readlink -f $${LIBSTDCPP_A_LOCATION} | sed -r -e 's:libstdc\+\+\.a::'` ; \
 		fi ; \
@@ -689,24 +692,27 @@ endef
 # FDPIC is not the primary binary format being used, but the user has
 # nonetheless requested the installation of the FDPIC libraries to the
 # target filesystem.
+# $1: toolchain CC
+# $2: toolchain CFLAGS
 ifeq ($(BR2_BFIN_INSTALL_FDPIC_SHARED),y)
 define TOOLCHAIN_EXTERNAL_INSTALL_SYSROOT_LIBS_BFIN_FDPIC
 	$(Q)$(call MESSAGE,"Install external toolchain FDPIC libraries to staging...")
-	$(Q)FDPIC_EXTERNAL_CC=$(dir $(TOOLCHAIN_EXTERNAL_CC))/../../bfin-linux-uclibc/bin/bfin-linux-uclibc-gcc ; \
-	FDPIC_SYSROOT_DIR="$(call toolchain_find_sysroot,$${FDPIC_EXTERNAL_CC} $(TOOLCHAIN_EXTERNAL_CFLAGS))" ; \
-	FDPIC_LIB_DIR="$(call toolchain_find_libdir,$${FDPIC_EXTERNAL_CC} $(TOOLCHAIN_EXTERNAL_CFLAGS))" ; \
+	$(Q)FDPIC_EXTERNAL_CC=$(dir $(1))/../../bfin-linux-uclibc/bin/bfin-linux-uclibc-gcc ; \
+	FDPIC_SYSROOT_DIR="$(call toolchain_find_sysroot,$${FDPIC_EXTERNAL_CC} $(2))" ; \
+	FDPIC_LIB_DIR="$(call toolchain_find_libdir,$${FDPIC_EXTERNAL_CC} $(2))" ; \
 	FDPIC_SUPPORT_LIB_DIR="" ; \
 	if test `find $${FDPIC_SYSROOT_DIR} -name 'libstdc++.a' | wc -l` -eq 0 ; then \
-	        FDPIC_LIBSTDCPP_A_LOCATION=$$(LANG=C $${FDPIC_EXTERNAL_CC} $(TOOLCHAIN_EXTERNAL_CFLAGS) -print-file-name=libstdc++.a) ; \
+	        FDPIC_LIBSTDCPP_A_LOCATION=$$(LANG=C $${FDPIC_EXTERNAL_CC} $(2) -print-file-name=libstdc++.a) ; \
 	        if [ -e "$${FDPIC_LIBSTDCPP_A_LOCATION}" ]; then \
 	                FDPIC_SUPPORT_LIB_DIR=`readlink -f $${FDPIC_LIBSTDCPP_A_LOCATION} | sed -r -e 's:libstdc\+\+\.a::'` ; \
 	        fi ; \
 	fi ; \
 	$(call copy_toolchain_sysroot,$${FDPIC_SYSROOT_DIR},$${FDPIC_SYSROOT_DIR},,$${FDPIC_LIB_DIR},$${FDPIC_SUPPORT_LIB_DIR})
 endef
+# $1: toolchain LIBS
 define TOOLCHAIN_EXTERNAL_INSTALL_TARGET_BFIN_FDPIC
 	$(Q)$(call MESSAGE,"Install external toolchain FDPIC libraries to target...")
-	$(Q)for libs in $(TOOLCHAIN_EXTERNAL_LIBS); do \
+	$(Q)for libs in $(1); do \
 		$(call copy_toolchain_lib_root,$$libs); \
 	done
 endef
@@ -718,11 +724,13 @@ endif
 # to the target filesystem. The flat libraries are found and linked
 # according to the index in name "libN.so". Index 1 is reserved for
 # the standard C library. Customer libraries can use 4 and above.
+# $1: toolchain CC
+# $2: toolchain CFLAGS
 ifeq ($(BR2_BFIN_INSTALL_FLAT_SHARED),y)
 define TOOLCHAIN_EXTERNAL_INSTALL_TARGET_BFIN_FLAT
 	$(Q)$(call MESSAGE,"Install external toolchain FLAT libraries to target...")
-	$(Q)FLAT_EXTERNAL_CC=$(dir $(TOOLCHAIN_EXTERNAL_CC))../../bfin-uclinux/bin/bfin-uclinux-gcc ; \
-	FLAT_LIBC_A_LOCATION=`$${FLAT_EXTERNAL_CC} $(TOOLCHAIN_EXTERNAL_CFLAGS) -mid-shared-library -print-file-name=libc`; \
+	$(Q)FLAT_EXTERNAL_CC=$(dir $(1))../../bfin-uclinux/bin/bfin-uclinux-gcc ; \
+	FLAT_LIBC_A_LOCATION=`$${FLAT_EXTERNAL_CC} $(2) -mid-shared-library -print-file-name=libc`; \
 	if [ -f $${FLAT_LIBC_A_LOCATION} -a ! -h $${FLAT_LIBC_A_LOCATION} ] ; then \
 	        $(INSTALL) -D $${FLAT_LIBC_A_LOCATION} $(TARGET_DIR)/lib/lib1.so; \
 	fi
@@ -790,8 +798,8 @@ TOOLCHAIN_EXTERNAL_BUILD_CMDS = $(TOOLCHAIN_WRAPPER_BUILD)
 define TOOLCHAIN_EXTERNAL_INSTALL_STAGING_CMDS
 	$(TOOLCHAIN_WRAPPER_INSTALL)
 	$(call TOOLCHAIN_EXTERNAL_CREATE_STAGING_LIB_SYMLINK,$(TOOLCHAIN_EXTERNAL_CC),$(TOOLCHAIN_EXTERNAL_CFLAGS))
-	$(TOOLCHAIN_EXTERNAL_INSTALL_SYSROOT_LIBS)
-	$(TOOLCHAIN_EXTERNAL_INSTALL_SYSROOT_LIBS_BFIN_FDPIC)
+	$(call TOOLCHAIN_EXTERNAL_INSTALL_SYSROOT_LIBS,$(TOOLCHAIN_EXTERNAL_CC),$(TOOLCHAIN_EXTERNAL_CFLAGS))
+	$(call TOOLCHAIN_EXTERNAL_INSTALL_SYSROOT_LIBS_BFIN_FDPIC,$(TOOLCHAIN_EXTERNAL_CC),$(TOOLCHAIN_EXTERNAL_CFLAGS))
 	$(TOOLCHAIN_EXTERNAL_INSTALL_WRAPPER)
 	$(TOOLCHAIN_EXTERNAL_INSTALL_GDBINIT)
 endef
@@ -801,10 +809,10 @@ endef
 # install-staging step, arbitrarily.
 define TOOLCHAIN_EXTERNAL_INSTALL_TARGET_CMDS
 	$(call TOOLCHAIN_EXTERNAL_CREATE_TARGET_LIB_SYMLINK,$(TOOLCHAIN_EXTERNAL_CC),$(TOOLCHAIN_EXTERNAL_CFLAGS))
-	$(TOOLCHAIN_EXTERNAL_INSTALL_TARGET_LIBS)
+	$(call TOOLCHAIN_EXTERNAL_INSTALL_TARGET_LIBS,$(TOOLCHAIN_EXTERNAL_LIBS))
 	$(TOOLCHAIN_EXTERNAL_INSTALL_TARGET_GDBSERVER)
-	$(TOOLCHAIN_EXTERNAL_INSTALL_TARGET_BFIN_FDPIC)
-	$(TOOLCHAIN_EXTERNAL_INSTALL_TARGET_BFIN_FLAT)
+	$(call TOOLCHAIN_EXTERNAL_INSTALL_TARGET_BFIN_FDPIC,$(TOOLCHAIN_EXTERNAL_LIBS))
+	$(call TOOLCHAIN_EXTERNAL_INSTALL_TARGET_BFIN_FLAT,$(TOOLCHAIN_EXTERNAL_CC),$(TOOLCHAIN_EXTERNAL_CFLAGS))
 	$(TOOLCHAIN_EXTERNAL_FIXUP_UCLIBCNG_LDSO)
 endef
 
-- 
2.5.5

[Buildroot] [PATCH v2 03/23] toolchain-external: TOOLCHAIN_EXTERNAL_INSTALL_WRAPPER: use arguments instead of global variables

[Romain Naour]

A new external toolchain package infrastructure will be introduced in a
followup patch, so TOOLCHAIN_EXTERNAL_{CC,CFLAGS...} global variables
will no longer exist. Instead, each external toolchain packages will
provide it's own <toolchain-external-name>_{CC,CFLAGS...} variables.

For the case of the toolchain wrapper install, CROSS is needed when
calling TOOLCHAIN_EXTERNAL_INSTALL_WRAPPER.

Signed-off-by: Romain Naour <romain.naour@gmail.com>
---
v2: rework commit log/title (Arnout)
---
 toolchain/toolchain-external/toolchain-external.mk | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/toolchain/toolchain-external/toolchain-external.mk b/toolchain/toolchain-external/toolchain-external.mk
index ddf77aa..84b6a03 100644
--- a/toolchain/toolchain-external/toolchain-external.mk
+++ b/toolchain/toolchain-external/toolchain-external.mk
@@ -746,9 +746,10 @@ endif
 # used. However, we should not add the toolchain wrapper for them, and they
 # match the *cc-* pattern. Therefore, an additional case is added for *-ar,
 # *-ranlib and *-nm.
+# $1 toolchain CROSS
 define TOOLCHAIN_EXTERNAL_INSTALL_WRAPPER
 	$(Q)cd $(HOST_DIR)/usr/bin; \
-	for i in $(TOOLCHAIN_EXTERNAL_CROSS)*; do \
+	for i in $(1)*; do \
 		base=$${i##*/}; \
 		case "$$base" in \
 		*-ar|*-ranlib|*-nm) \
@@ -800,7 +801,7 @@ define TOOLCHAIN_EXTERNAL_INSTALL_STAGING_CMDS
 	$(call TOOLCHAIN_EXTERNAL_CREATE_STAGING_LIB_SYMLINK,$(TOOLCHAIN_EXTERNAL_CC),$(TOOLCHAIN_EXTERNAL_CFLAGS))
 	$(call TOOLCHAIN_EXTERNAL_INSTALL_SYSROOT_LIBS,$(TOOLCHAIN_EXTERNAL_CC),$(TOOLCHAIN_EXTERNAL_CFLAGS))
 	$(call TOOLCHAIN_EXTERNAL_INSTALL_SYSROOT_LIBS_BFIN_FDPIC,$(TOOLCHAIN_EXTERNAL_CC),$(TOOLCHAIN_EXTERNAL_CFLAGS))
-	$(TOOLCHAIN_EXTERNAL_INSTALL_WRAPPER)
+	$(call TOOLCHAIN_EXTERNAL_INSTALL_WRAPPER,$(TOOLCHAIN_EXTERNAL_CROSS))
 	$(TOOLCHAIN_EXTERNAL_INSTALL_GDBINIT)
 endef
 
-- 
2.5.5

[Buildroot] [PATCH v2 04/23] toolchain-external: TOOLCHAIN_EXTERNAL_INSTALL_TARGET_GDBSERVER: use arguments instead of global variables

[Romain Naour]

A new external toolchain package infrastructure will be introduced in a
followup patch, so TOOLCHAIN_EXTERNAL_{CC,CFLAGS...} global variables
will no longer exist. Instead, each external-toolchain packages will
provide it's own <toolchain-external-name>_{CC,CFLAGS...} variables.

So additional arguments are needed to provide CC, CFLAG and INSTALL_DIR
when calling TOOLCHAIN_EXTERNAL_INSTALL_TARGET_GDBSERVER.

Signed-off-by: Romain Naour <romain.naour@gmail.com>
---
v2: rework commit log/title (Arnout)
---
 toolchain/toolchain-external/toolchain-external.mk | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/toolchain/toolchain-external/toolchain-external.mk b/toolchain/toolchain-external/toolchain-external.mk
index 84b6a03..6ae4bf5 100644
--- a/toolchain/toolchain-external/toolchain-external.mk
+++ b/toolchain/toolchain-external/toolchain-external.mk
@@ -640,16 +640,19 @@ define TOOLCHAIN_EXTERNAL_INSTALL_TARGET_LIBS
 endef
 endif
 
+# $1: toolchain CC
+# $2: toolchain CFLAGS
+# $3: toolchain INSTALL_DIR
 ifeq ($(BR2_TOOLCHAIN_EXTERNAL_GDB_SERVER_COPY),y)
 define TOOLCHAIN_EXTERNAL_INSTALL_TARGET_GDBSERVER
 	$(Q)$(call MESSAGE,"Copying gdbserver")
-	$(Q)ARCH_SYSROOT_DIR="$(call toolchain_find_sysroot,$(TOOLCHAIN_EXTERNAL_CC) $(TOOLCHAIN_EXTERNAL_CFLAGS))" ; \
-	ARCH_LIB_DIR="$(call toolchain_find_libdir,$(TOOLCHAIN_EXTERNAL_CC) $(TOOLCHAIN_EXTERNAL_CFLAGS))" ; \
+	$(Q)ARCH_SYSROOT_DIR="$(call toolchain_find_sysroot,$(1) $(2))" ; \
+	ARCH_LIB_DIR="$(call toolchain_find_libdir,$(1) $(2))" ; \
 	gdbserver_found=0 ; \
 	for d in $${ARCH_SYSROOT_DIR}/usr \
 		 $${ARCH_SYSROOT_DIR}/../debug-root/usr \
 		 $${ARCH_SYSROOT_DIR}/usr/$${ARCH_LIB_DIR} \
-		 $(TOOLCHAIN_EXTERNAL_INSTALL_DIR); do \
+		 $(3); do \
 		if test -f $${d}/bin/gdbserver ; then \
 			install -m 0755 -D $${d}/bin/gdbserver $(TARGET_DIR)/usr/bin/gdbserver ; \
 			gdbserver_found=1 ; \
@@ -811,7 +814,7 @@ endef
 define TOOLCHAIN_EXTERNAL_INSTALL_TARGET_CMDS
 	$(call TOOLCHAIN_EXTERNAL_CREATE_TARGET_LIB_SYMLINK,$(TOOLCHAIN_EXTERNAL_CC),$(TOOLCHAIN_EXTERNAL_CFLAGS))
 	$(call TOOLCHAIN_EXTERNAL_INSTALL_TARGET_LIBS,$(TOOLCHAIN_EXTERNAL_LIBS))
-	$(TOOLCHAIN_EXTERNAL_INSTALL_TARGET_GDBSERVER)
+	$(call TOOLCHAIN_EXTERNAL_INSTALL_TARGET_GDBSERVER,$(TOOLCHAIN_EXTERNAL_CC),$(TOOLCHAIN_EXTERNAL_CFLAGS),$(TOOLCHAIN_EXTERNAL_INSTALL_DIR))
 	$(call TOOLCHAIN_EXTERNAL_INSTALL_TARGET_BFIN_FDPIC,$(TOOLCHAIN_EXTERNAL_LIBS))
 	$(call TOOLCHAIN_EXTERNAL_INSTALL_TARGET_BFIN_FLAT,$(TOOLCHAIN_EXTERNAL_CC),$(TOOLCHAIN_EXTERNAL_CFLAGS))
 	$(TOOLCHAIN_EXTERNAL_FIXUP_UCLIBCNG_LDSO)
-- 
2.5.5

[Buildroot] [PATCH v2 05/23] toolchain-external-blackfin-uclinux: new package

[Romain Naour]

From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

This commit adds a new package for the Analog Devices external
toolchain for the Blackfin architecture. As of this commit, the code
is currently not used, but it will be used as soon as the external
toolchain infrastructure gets introduced in a future commit.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Romain Naour <romain.naour@gmail.com>
---
 .../toolchain-external-blackfin-uclinux/Config.in  | 17 ++++++++++
 .../Config.in.options                              |  6 ++++
 .../toolchain-external-blackfin-uclinux.hash       |  3 ++
 .../toolchain-external-blackfin-uclinux.mk         | 36 ++++++++++++++++++++++
 4 files changed, 62 insertions(+)
 create mode 100644 toolchain/toolchain-external/toolchain-external-blackfin-uclinux/Config.in
 create mode 100644 toolchain/toolchain-external/toolchain-external-blackfin-uclinux/Config.in.options
 create mode 100644 toolchain/toolchain-external/toolchain-external-blackfin-uclinux/toolchain-external-blackfin-uclinux.hash
 create mode 100644 toolchain/toolchain-external/toolchain-external-blackfin-uclinux/toolchain-external-blackfin-uclinux.mk

diff --git a/toolchain/toolchain-external/toolchain-external-blackfin-uclinux/Config.in b/toolchain/toolchain-external/toolchain-external-blackfin-uclinux/Config.in
new file mode 100644
index 0000000..8b299e8
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-blackfin-uclinux/Config.in
@@ -0,0 +1,17 @@
+config BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX
+	bool "Blackfin.uclinux.org 2014R1"
+	depends on BR2_bfin
+	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
+	select BR2_TOOLCHAIN_EXTERNAL_UCLIBC
+	select BR2_INSTALL_LIBSTDCPP
+	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
+	select BR2_USE_WCHAR
+	select BR2_TOOLCHAIN_HAS_THREADS
+	select BR2_TOOLCHAIN_HAS_THREADS_DEBUG
+	select BR2_HOSTARCH_NEEDS_IA32_LIBS
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_10
+	select BR2_TOOLCHAIN_GCC_AT_LEAST_4_3
+	select BR2_TOOLCHAIN_HAS_FORTRAN
+	help
+	  Toolchain for the Blackfin architecture, from
+	  http://blackfin.uclinux.org.
diff --git a/toolchain/toolchain-external/toolchain-external-blackfin-uclinux/Config.in.options b/toolchain/toolchain-external/toolchain-external-blackfin-uclinux/Config.in.options
new file mode 100644
index 0000000..a13cbba
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-blackfin-uclinux/Config.in.options
@@ -0,0 +1,6 @@
+if BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX
+
+config BR2_PACKAGE_PROVIDES_TOOLCHAIN_EXTERNAL
+	default "toolchain-external-blackfin-uclinux"
+
+endif
diff --git a/toolchain/toolchain-external/toolchain-external-blackfin-uclinux/toolchain-external-blackfin-uclinux.hash b/toolchain/toolchain-external/toolchain-external-blackfin-uclinux/toolchain-external-blackfin-uclinux.hash
new file mode 100644
index 0000000..b320d94
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-blackfin-uclinux/toolchain-external-blackfin-uclinux.hash
@@ -0,0 +1,3 @@
+# Locally calculated
+sha256 e424e90d8481d942a40266d78d1488726561fed3ec38403094f98055e61889d0  blackfin-toolchain-2014R1-RC2.i386.tar.bz2
+sha256 c65b1b4b918d5185349d62a3b7bf43b4b21e1175c52598ec047ca56b3f11d857  blackfin-toolchain-uclibc-full-2014R1-RC2.i386.tar.bz2
diff --git a/toolchain/toolchain-external/toolchain-external-blackfin-uclinux/toolchain-external-blackfin-uclinux.mk b/toolchain/toolchain-external/toolchain-external-blackfin-uclinux/toolchain-external-blackfin-uclinux.mk
new file mode 100644
index 0000000..0c3eb9b
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-blackfin-uclinux/toolchain-external-blackfin-uclinux.mk
@@ -0,0 +1,36 @@
+################################################################################
+#
+# toolchain-external-blackfin-uclinux
+#
+################################################################################
+
+TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_VERSION = 2014R1-RC2
+
+ifeq ($(BR2_BINFMT_FLAT),y)
+TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_SUBDIR = bfin-uclinux
+TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_PREFIX = bfin-uclinux
+else
+TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_SUBDIR = bfin-linux-uclibc
+TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_PREFIX = bfin-linux-uclibc
+endif
+
+TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_VERSION_MAJOR = $(firstword $(subst -, ,$(TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_VERSION)))
+
+TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_SITE = http://downloads.sourceforge.net/project/adi-toolchain/$(TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_VERSION_MAJOR)/$(TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_VERSION)/i386
+TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_SOURCE = blackfin-toolchain-$(TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_VERSION).i386.tar.bz2
+TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_EXTRA_DOWNLOADS = blackfin-toolchain-uclibc-full-$(TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_VERSION).i386.tar.bz2
+
+TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_STRIP_COMPONENTS = 3
+
+# Special handling for Blackfin toolchain, because of the split in two
+# tarballs, and the organization of tarball contents. The tarballs
+# contain ./opt/uClinux/{bfin-uclinux,bfin-linux-uclibc} directories,
+# which themselves contain the toolchain. This is why we strip more
+# components than usual.
+define TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_UCLIBC_EXTRA_EXTRACT
+	$(call suitable-extractor,$(TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_EXTRA_DOWNLOADS)) $(DL_DIR)/$(TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_EXTRA_DOWNLOADS) | \
+		$(TAR) --strip-components=3 -C $(@D) $(TAR_OPTIONS) -
+endef
+TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_POST_EXTRACT_HOOKS += TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_UCLIBC_EXTRA_EXTRACT
+
+$(eval $(toolchain-external-package))
-- 
2.5.5

[Buildroot] [PATCH v2 06/23] toolchain-external-arago-armv7a: new package

[Romain Naour]

From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

This commit adds a new package for the Arago external toolchain for
the ARM architecture. As of this commit, the code is currently not
used, but it will be used as soon as the external toolchain
infrastructure gets introduced in a future commit.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Romain Naour <romain.naour@gmail.com>
---
 .../toolchain-external-arago-armv7a/Config.in      | 24 ++++++++++++++++++++++
 .../Config.in.options                              |  6 ++++++
 .../toolchain-external-arago-armv7a.hash           |  3 +++
 .../toolchain-external-arago-armv7a.mk             | 23 +++++++++++++++++++++
 4 files changed, 56 insertions(+)
 create mode 100644 toolchain/toolchain-external/toolchain-external-arago-armv7a/Config.in
 create mode 100644 toolchain/toolchain-external/toolchain-external-arago-armv7a/Config.in.options
 create mode 100644 toolchain/toolchain-external/toolchain-external-arago-armv7a/toolchain-external-arago-armv7a.hash
 create mode 100644 toolchain/toolchain-external/toolchain-external-arago-armv7a/toolchain-external-arago-armv7a.mk

diff --git a/toolchain/toolchain-external/toolchain-external-arago-armv7a/Config.in b/toolchain/toolchain-external/toolchain-external-arago-armv7a/Config.in
new file mode 100644
index 0000000..a3ea6b2
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-arago-armv7a/Config.in
@@ -0,0 +1,24 @@
+config BR2_TOOLCHAIN_EXTERNAL_ARAGO_ARMV7A
+	bool "Arago ARMv7 2011.09"
+	depends on BR2_arm
+	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
+	depends on BR2_ARM_CPU_ARMV7A
+	depends on BR2_ARM_EABI
+	depends on BR2_ARM_CPU_HAS_VFPV3
+	depends on !BR2_STATIC_LIBS
+	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
+	select BR2_TOOLCHAIN_HAS_SSP
+	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
+	select BR2_INSTALL_LIBSTDCPP
+	select BR2_HOSTARCH_NEEDS_IA32_LIBS
+	select BR2_TOOLCHAIN_GCC_AT_LEAST_4_5
+	# kernel headers: 2.6.31
+	help
+	  Texas Instruments Arago 2011.09 toolchain, with gcc 4.5.3,
+	  binutils 2.20.1, glibc 2.12, gdb 7.2.
+
+	  This toolchain uses -mfloat-abi=softfp (i.e can use FPU
+	  instructions, but passes floating point function arguments
+	  in integer registers), and requires a VFPv3 floating point
+	  unit to work properly. This unit is available on most
+	  Cortex-A ARM processors, but not all.
diff --git a/toolchain/toolchain-external/toolchain-external-arago-armv7a/Config.in.options b/toolchain/toolchain-external/toolchain-external-arago-armv7a/Config.in.options
new file mode 100644
index 0000000..96018f5
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-arago-armv7a/Config.in.options
@@ -0,0 +1,6 @@
+if BR2_TOOLCHAIN_EXTERNAL_ARAGO_ARMV7A
+
+config BR2_PACKAGE_PROVIDES_TOOLCHAIN_EXTERNAL
+	default "toolchain-external-arago-armv7a"
+
+endif
diff --git a/toolchain/toolchain-external/toolchain-external-arago-armv7a/toolchain-external-arago-armv7a.hash b/toolchain/toolchain-external/toolchain-external-arago-armv7a/toolchain-external-arago-armv7a.hash
new file mode 100644
index 0000000..a66900a
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-arago-armv7a/toolchain-external-arago-armv7a.hash
@@ -0,0 +1,3 @@
+# Locally calculated
+sha256 f2febf3b3c565536461ad4405f1bcb835d75a6afb2a8bec958a1248cb4b81fc7  arago-2011.09-armv7a-linux-gnueabi-sdk.tar.bz2
+sha256 25fbf0513ad7322b15cbaae964cafadcbb4c939f2708f57f40b8f9f2d601122b  arago-toolchain-2011.09-sources.tar.bz2
diff --git a/toolchain/toolchain-external/toolchain-external-arago-armv7a/toolchain-external-arago-armv7a.mk b/toolchain/toolchain-external/toolchain-external-arago-armv7a/toolchain-external-arago-armv7a.mk
new file mode 100644
index 0000000..93e3e79
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-arago-armv7a/toolchain-external-arago-armv7a.mk
@@ -0,0 +1,23 @@
+################################################################################
+#
+# toolchain-external-arago-armv7a
+#
+################################################################################
+
+TOOLCHAIN_EXTERNAL_ARAGO_ARMV7A_SITE = http://software-dl.ti.com/sdoemb/sdoemb_public_sw/arago_toolchain/2011_09/exports
+TOOLCHAIN_EXTERNAL_ARAGO_ARMV7A_VERSION = 2011.09
+TOOLCHAIN_EXTERNAL_ARAGO_ARMV7A_PREFIX = arm-arago-linux-gnueabi
+
+TOOLCHAIN_EXTERNAL_ARAGO_ARMV7A_SOURCE = \
+	arago-$(TOOLCHAIN_EXTERNAL_ARAGO_ARMV7A_VERSION)-armv7a-linux-gnueabi-sdk.tar.bz2
+
+TOOLCHAIN_EXTERNAL_ARAGO_ARMV7A_ACTUAL_SOURCE_TARBALL = arago-toolchain-$(TOOLCHAIN_EXTERNAL_ARAGO_ARMV7A_VERSION)-sources.tar.bz2
+
+define TOOLCHAIN_EXTERNAL_ARAGO_ARMV7A_FIXUP_EXTRACT
+	mv $(@D)/arago-2011.09/armv7a/* $(@D)/
+	rm -rf $(@D)/arago-2011.09/
+endef
+
+TOOLCHAIN_EXTERNAL_ARAGO_ARMV7A_POST_EXTRACT_HOOKS += TOOLCHAIN_EXTERNAL_ARAGO_ARMV7A_FIXUP_EXTRACT
+
+$(eval $(toolchain-external-package))
-- 
2.5.5

[Buildroot] [PATCH v2 07/23] toolchain-external-arago-armv5te: new package

[Romain Naour]

This commit adds a new package for the Arago external toolchain for
the ARM architecture. As of this commit, the code is currently not
used, but it will be used as soon as the external toolchain
infrastructure gets introduced in a future commit.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Romain Naour <romain.naour@gmail.com>
---
 .../toolchain-external-arago-armv5te/Config.in     | 19 ++++++++++++++++++
 .../Config.in.options                              |  6 ++++++
 .../toolchain-external-arago-armv5te.hash          |  3 +++
 .../toolchain-external-arago-armv5te.mk            | 23 ++++++++++++++++++++++
 4 files changed, 51 insertions(+)
 create mode 100644 toolchain/toolchain-external/toolchain-external-arago-armv5te/Config.in
 create mode 100644 toolchain/toolchain-external/toolchain-external-arago-armv5te/Config.in.options
 create mode 100644 toolchain/toolchain-external/toolchain-external-arago-armv5te/toolchain-external-arago-armv5te.hash
 create mode 100644 toolchain/toolchain-external/toolchain-external-arago-armv5te/toolchain-external-arago-armv5te.mk

diff --git a/toolchain/toolchain-external/toolchain-external-arago-armv5te/Config.in b/toolchain/toolchain-external/toolchain-external-arago-armv5te/Config.in
new file mode 100644
index 0000000..2c821a4
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-arago-armv5te/Config.in
@@ -0,0 +1,19 @@
+config BR2_TOOLCHAIN_EXTERNAL_ARAGO_ARMV5TE
+	bool "Arago ARMv5 2011.09"
+	depends on BR2_arm
+	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
+	depends on !BR2_ARM_CPU_ARMV4
+	depends on BR2_ARM_EABI
+	depends on !BR2_STATIC_LIBS
+	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
+	select BR2_TOOLCHAIN_HAS_SSP
+	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
+	select BR2_INSTALL_LIBSTDCPP
+	select BR2_HOSTARCH_NEEDS_IA32_LIBS
+	select BR2_TOOLCHAIN_GCC_AT_LEAST_4_5
+	# kernel headers: 2.6.31
+	help
+	  Texas Instruments Arago ARMv5 2011.09 toolchain, with gcc
+	  4.5.3, binutils 2.20.1, glibc 2.12, gdb 7.2.
+
+	  This toolchain uses software-floating point.
diff --git a/toolchain/toolchain-external/toolchain-external-arago-armv5te/Config.in.options b/toolchain/toolchain-external/toolchain-external-arago-armv5te/Config.in.options
new file mode 100644
index 0000000..dd08ee0
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-arago-armv5te/Config.in.options
@@ -0,0 +1,6 @@
+if BR2_TOOLCHAIN_EXTERNAL_ARAGO_ARMV5TE
+
+config BR2_PACKAGE_PROVIDES_TOOLCHAIN_EXTERNAL
+	default "toolchain-external-arago-armv5te"
+
+endif
diff --git a/toolchain/toolchain-external/toolchain-external-arago-armv5te/toolchain-external-arago-armv5te.hash b/toolchain/toolchain-external/toolchain-external-arago-armv5te/toolchain-external-arago-armv5te.hash
new file mode 100644
index 0000000..dd70004
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-arago-armv5te/toolchain-external-arago-armv5te.hash
@@ -0,0 +1,3 @@
+# Locally calculated
+sha256 254af7d02eb3bcc8345c78e131700bc995d65b68232caaed21150a5fd1456070  arago-2011.09-armv5te-linux-gnueabi-sdk.tar.bz2
+sha256 25fbf0513ad7322b15cbaae964cafadcbb4c939f2708f57f40b8f9f2d601122b  arago-toolchain-2011.09-sources.tar.bz2
diff --git a/toolchain/toolchain-external/toolchain-external-arago-armv5te/toolchain-external-arago-armv5te.mk b/toolchain/toolchain-external/toolchain-external-arago-armv5te/toolchain-external-arago-armv5te.mk
new file mode 100644
index 0000000..f06728e
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-arago-armv5te/toolchain-external-arago-armv5te.mk
@@ -0,0 +1,23 @@
+################################################################################
+#
+# toolchain-external-arago-armv5te
+#
+################################################################################
+
+TOOLCHAIN_EXTERNAL_ARAGO_ARMV5TE_SITE = http://software-dl.ti.com/sdoemb/sdoemb_public_sw/arago_toolchain/2011_09/exports
+TOOLCHAIN_EXTERNAL_ARAGO_ARMV5TE_VERSION = 2011.09
+TOOLCHAIN_EXTERNAL_ARAGO_ARMV5TE_PREFIX = arm-arago-linux-gnueabi
+
+TOOLCHAIN_EXTERNAL_ARAGO_ARMV5TE_SOURCE = \
+	arago-$(TOOLCHAIN_EXTERNAL_ARAGO_ARMV5TE_VERSION)-armv5te-linux-gnueabi-sdk.tar.bz2
+
+TOOLCHAIN_EXTERNAL_ARAGO_ARMV5TE_ACTUAL_SOURCE_TARBALL = arago-toolchain-$(TOOLCHAIN_EXTERNAL_ARAGO_ARMV5TE_VERSION)-sources.tar.bz2
+
+define TOOLCHAIN_EXTERNAL_ARAGO_ARMV5TE_FIXUP_EXTRACT
+	mv $(@D)/arago-2011.09/armv5te/* $(@D)/
+	rm -rf $(@D)/arago-2011.09/
+endef
+
+TOOLCHAIN_EXTERNAL_ARAGO_ARMV5TE_POST_EXTRACT_HOOKS += TOOLCHAIN_EXTERNAL_ARAGO_ARMV5TE_FIXUP_EXTRACT
+
+$(eval $(toolchain-external-package))
-- 
2.5.5

[Buildroot] [PATCH v2 08/23] toolchain-external-custom: new package

[Romain Naour]

From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

This commit adds a new package to support custom external
toolchains. As of this commit, the code is currently not used, but it
will be used as soon as the external toolchain infrastructure gets
introduced in a future commit.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Romain Naour <romain.naour@gmail.com>
---
 .../toolchain-external-custom/Config.in            |   5 +
 .../toolchain-external-custom/Config.in.options    | 331 +++++++++++++++++++++
 .../toolchain-external-custom.mk                   |  16 +
 3 files changed, 352 insertions(+)
 create mode 100644 toolchain/toolchain-external/toolchain-external-custom/Config.in
 create mode 100644 toolchain/toolchain-external/toolchain-external-custom/Config.in.options
 create mode 100644 toolchain/toolchain-external/toolchain-external-custom/toolchain-external-custom.mk

diff --git a/toolchain/toolchain-external/toolchain-external-custom/Config.in b/toolchain/toolchain-external/toolchain-external-custom/Config.in
new file mode 100644
index 0000000..a913feb
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-custom/Config.in
@@ -0,0 +1,5 @@
+config BR2_TOOLCHAIN_EXTERNAL_CUSTOM
+	bool "Custom toolchain"
+	help
+	  Use this option to use a custom toolchain pre-installed on
+	  your system.
diff --git a/toolchain/toolchain-external/toolchain-external-custom/Config.in.options b/toolchain/toolchain-external/toolchain-external-custom/Config.in.options
new file mode 100644
index 0000000..b15670e
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-custom/Config.in.options
@@ -0,0 +1,331 @@
+if BR2_TOOLCHAIN_EXTERNAL_CUSTOM
+
+config BR2_PACKAGE_PROVIDES_TOOLCHAIN_EXTERNAL
+	default "toolchain-external-custom"
+
+config BR2_TOOLCHAIN_EXTERNAL_URL
+	string "Toolchain URL"
+	depends on BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD
+	help
+	  URL of the custom toolchain tarball to download and install.
+
+config BR2_TOOLCHAIN_EXTERNAL_CUSTOM_PREFIX
+	string "Toolchain prefix"
+	default "$(ARCH)-linux"
+
+choice
+	bool "External toolchain gcc version"
+	default BR2_TOOLCHAIN_EXTERNAL_GCC_4_3
+	help
+	  Set to the gcc version that is used by your external
+	  toolchain.
+
+config BR2_TOOLCHAIN_EXTERNAL_GCC_6
+	bool "6.x"
+	select BR2_TOOLCHAIN_GCC_AT_LEAST_6
+
+config BR2_TOOLCHAIN_EXTERNAL_GCC_5
+	bool "5.x"
+	select BR2_TOOLCHAIN_GCC_AT_LEAST_5
+
+config BR2_TOOLCHAIN_EXTERNAL_GCC_4_9
+	bool "4.9.x"
+	select BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
+
+config BR2_TOOLCHAIN_EXTERNAL_GCC_4_8
+	bool "4.8.x"
+	select BR2_TOOLCHAIN_GCC_AT_LEAST_4_8
+
+config BR2_TOOLCHAIN_EXTERNAL_GCC_4_7
+	bool "4.7.x"
+	select BR2_TOOLCHAIN_GCC_AT_LEAST_4_7
+
+config BR2_TOOLCHAIN_EXTERNAL_GCC_4_6
+	bool "4.6.x"
+	select BR2_TOOLCHAIN_GCC_AT_LEAST_4_6
+
+config BR2_TOOLCHAIN_EXTERNAL_GCC_4_5
+	bool "4.5.x"
+	select BR2_TOOLCHAIN_GCC_AT_LEAST_4_5
+
+config BR2_TOOLCHAIN_EXTERNAL_GCC_4_4
+	bool "4.4.x"
+	select BR2_TOOLCHAIN_GCC_AT_LEAST_4_4
+
+config BR2_TOOLCHAIN_EXTERNAL_GCC_4_3
+	bool "4.3.x"
+	select BR2_TOOLCHAIN_GCC_AT_LEAST_4_3
+
+endchoice
+
+choice
+	bool "External toolchain kernel headers series"
+	default BR2_TOOLCHAIN_EXTERNAL_HEADERS_REALLY_OLD
+	help
+	  Set to the kernel headers version that were used to build
+	  this external toolchain.
+
+	  This is used to hide/show some packages that have strict
+	  requirements on the version of kernel headers.
+
+	  If unsure what version your toolchain is using, you can look
+	  at the value of LINUX_VERSION_CODE in linux/version.h in your
+	  toolchain. The Linux version is M.m.p, with:
+	    M = ( LINUX_VERSION_CODE >> 16 ) & 0xFF
+	    m = ( LINUX_VERSION_CODE >> 8  ) & 0xFF
+	    p = ( LINUX_VERSION_CODE >> 0  ) & 0xFF
+
+config BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_8
+	bool "4.8.x"
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_8
+
+config BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_7
+	bool "4.7.x"
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_7
+
+config BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_6
+	bool "4.6.x"
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_6
+
+config BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_5
+	bool "4.5.x"
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_5
+
+config BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_4
+	bool "4.4.x"
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_4
+
+config BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_3
+	bool "4.3.x"
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_3
+
+config BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_2
+	bool "4.2.x"
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_2
+
+config BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_1
+	bool "4.1.x"
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_1
+
+config BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_0
+	bool "4.0.x"
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_0
+
+config BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_19
+	bool "3.19.x"
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_19
+
+config BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_18
+	bool "3.18.x"
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_18
+
+config BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_17
+	bool "3.17.x"
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_17
+
+config BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_16
+	bool "3.16.x"
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_16
+
+config BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_15
+	bool "3.15.x"
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_15
+
+config BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_14
+	bool "3.14.x"
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_14
+
+config BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_13
+	bool "3.13.x"
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_13
+
+config BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_12
+	bool "3.12.x"
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_12
+
+config BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_11
+	bool "3.11.x"
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_11
+
+config BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_10
+	bool "3.10.x"
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_10
+
+config BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_9
+	bool "3.9.x"
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_9
+
+config BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_8
+	bool "3.8.x"
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_8
+
+config BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_7
+	bool "3.7.x"
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_7
+
+config BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_6
+	bool "3.6.x"
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_6
+
+config BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_5
+	bool "3.5.x"
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_5
+
+config BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_4
+	bool "3.4.x"
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_4
+
+config BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_3
+	bool "3.3.x"
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_3
+
+config BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_2
+	bool "3.2.x"
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_2
+
+config BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_1
+	bool "3.1.x"
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_1
+
+config BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_0
+	bool "3.0.x"
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_0
+
+config BR2_TOOLCHAIN_EXTERNAL_HEADERS_REALLY_OLD
+	bool "2.6.x"
+
+endchoice
+
+choice
+	prompt "External toolchain C library"
+	default BR2_TOOLCHAIN_EXTERNAL_CUSTOM_UCLIBC
+
+config BR2_TOOLCHAIN_EXTERNAL_CUSTOM_UCLIBC
+	bool "uClibc/uClibc-ng"
+	select BR2_TOOLCHAIN_EXTERNAL_UCLIBC
+	# For the time being, we assume that all custom external
+	# toolchains have shadow password support.
+	select BR2_TOOLCHAIN_HAS_SHADOW_PASSWORDS
+	help
+	  Select this option if your external toolchain uses the
+	  uClibc (available from http://www.uclibc.org/)
+	  or uClibc-ng (available from http://www.uclibc-ng.org)
+	  C library.
+
+config BR2_TOOLCHAIN_EXTERNAL_CUSTOM_GLIBC
+	bool "glibc/eglibc"
+	depends on !BR2_STATIC_LIBS
+	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
+	help
+	  Select this option if your external toolchain uses the GNU C
+	  library (available from https://www.gnu.org/software/libc/)
+	  or its variant the eglibc library (http://www.eglibc.org/).
+
+	  Note: eglibc is a variant of glibc that (among other things)
+	  can be configured to exclude some of its features. Using a
+	  toolchain with eglibc configured to exclude key features may
+	  cause build failures to some packages.
+
+comment "(e)glibc only available with shared lib support"
+	depends on BR2_STATIC_LIBS
+
+config BR2_TOOLCHAIN_EXTERNAL_CUSTOM_MUSL
+	bool "musl (experimental)"
+	select BR2_TOOLCHAIN_EXTERNAL_MUSL
+	help
+	  Select this option if your external toolchain uses the
+	  'musl' C library, available from http://www.musl-libc.org/.
+
+endchoice
+
+if BR2_TOOLCHAIN_EXTERNAL_CUSTOM_UCLIBC
+
+config BR2_TOOLCHAIN_EXTERNAL_WCHAR
+	bool "Toolchain has WCHAR support?"
+	select BR2_USE_WCHAR
+	help
+	  Select this option if your external toolchain supports
+	  WCHAR. If you don't know, leave the default value, Buildroot
+	  will tell you if it's correct or not.
+
+config BR2_TOOLCHAIN_EXTERNAL_LOCALE
+	bool "Toolchain has locale support?"
+	select BR2_TOOLCHAIN_EXTERNAL_WCHAR
+	select BR2_ENABLE_LOCALE
+	help
+	  Select this option if your external toolchain has locale
+	  support. If you don't know, leave the default value,
+	  Buildroot will tell you if it's correct or not.
+
+config BR2_TOOLCHAIN_EXTERNAL_HAS_THREADS
+	bool "Toolchain has threads support?"
+	select BR2_TOOLCHAIN_HAS_THREADS
+	default y
+	help
+	  Select this option if your external toolchain has thread
+	  support. If you don't know, leave the default value,
+	  Buildroot will tell you if it's correct or not.
+
+if BR2_TOOLCHAIN_EXTERNAL_HAS_THREADS
+
+config BR2_TOOLCHAIN_EXTERNAL_HAS_THREADS_DEBUG
+	bool "Toolchain has threads debugging support?"
+	select BR2_TOOLCHAIN_HAS_THREADS_DEBUG
+	default y
+	help
+	  Select this option if your external toolchain has thread
+	  debugging support. If you don't know, leave the default
+	  value, Buildroot will tell you if it's correct or not.
+
+config BR2_TOOLCHAIN_EXTERNAL_HAS_THREADS_NPTL
+	bool "Toolchain has NPTL threads support?"
+	select BR2_TOOLCHAIN_HAS_THREADS_NPTL
+	default y
+	help
+	  Select this option if your external toolchain uses the NPTL
+	  (Native Posix Thread Library) implementation of Posix
+	  threads. If you don't know, leave the default value,
+	  Buildroot will tell you if it's correct or not.
+
+endif # BR2_TOOLCHAIN_EXTERNAL_HAS_THREADS
+
+endif # BR2_TOOLCHAIN_EXTERNAL_CUSTOM_UCLIBC
+
+config BR2_TOOLCHAIN_EXTERNAL_HAS_SSP
+	bool "Toolchain has SSP support?"
+	select BR2_TOOLCHAIN_HAS_SSP
+	default y if BR2_TOOLCHAIN_EXTERNAL_GLIBC
+	default y if BR2_TOOLCHAIN_EXTERNAL_MUSL
+	help
+	  Selection this option if your external toolchain has Stack
+	  Smashing Protection support enabled. If you don't know,
+	  leave the default value, Buildroot will tell you if it's
+	  correct or not.
+
+config BR2_TOOLCHAIN_EXTERNAL_INET_RPC
+	bool "Toolchain has RPC support?"
+	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
+	depends on !BR2_TOOLCHAIN_EXTERNAL_MUSL
+	default y if BR2_TOOLCHAIN_EXTERNAL_GLIBC
+	help
+	  Select this option if your external toolchain supports
+	  RPC. If you don't know, leave the default value, Buildroot
+	  will tell you if it's correct or not.
+
+config BR2_TOOLCHAIN_EXTERNAL_CXX
+	bool "Toolchain has C++ support?"
+	select BR2_INSTALL_LIBSTDCPP
+	help
+	  Select this option if your external toolchain has C++
+	  support. If you don't know, leave the default value,
+	  Buildroot will tell you if it's correct or not.
+
+config BR2_TOOLCHAIN_EXTRA_EXTERNAL_LIBS
+	string "Extra toolchain libraries to be copied to target"
+	help
+	  If your external toolchain provides extra libraries that
+	  need to be copied to the target filesystem, enter them
+	  here, separated by spaces. They will be copied to the
+	  target's /lib directory.
+
+endif
diff --git a/toolchain/toolchain-external/toolchain-external-custom/toolchain-external-custom.mk b/toolchain/toolchain-external/toolchain-external-custom/toolchain-external-custom.mk
new file mode 100644
index 0000000..1d40f08
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-custom/toolchain-external-custom.mk
@@ -0,0 +1,16 @@
+################################################################################
+#
+# toolchain-external-custom
+#
+################################################################################
+
+TOOLCHAIN_EXTERNAL_CUSTOM_SITE = $(patsubst %/,%,$(dir $(call qstrip,$(BR2_TOOLCHAIN_EXTERNAL_URL))))
+TOOLCHAIN_EXTERNAL_CUSTOM_SOURCE = $(notdir $(call qstrip,$(BR2_TOOLCHAIN_EXTERNAL_URL)))
+TOOLCHAIN_EXTERNAL_CUSTOM_PREFIX = $(call qstrip,$(BR2_TOOLCHAIN_EXTERNAL_CUSTOM_PREFIX))
+
+ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CUSTOM),y)
+# We can't check hashes for custom downloaded toolchains
+BR_NO_CHECK_HASH_FOR += $(TOOLCHAIN_EXTERNAL_SOURCE)
+endif
+
+$(eval $(toolchain-external-package))
-- 
2.5.5

[Buildroot] [PATCH v2 09/23] toolchain-external-linaro-aarch64: new package

[Romain Naour]

From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

This commit adds a new package for the Linaro external toolchain for
the AArch64 architecture. As of this commit, the code is currently not
used, but it will be used as soon as the external toolchain
infrastructure gets introduced in a future commit.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Romain Naour <romain.naour@gmail.com>
---
 .../toolchain-external-linaro-aarch64/Config.in         | 15 +++++++++++++++
 .../toolchain-external-linaro-aarch64/Config.in.options |  6 ++++++
 .../toolchain-external-linaro-aarch64.hash              |  3 +++
 .../toolchain-external-linaro-aarch64.mk                | 17 +++++++++++++++++
 4 files changed, 41 insertions(+)
 create mode 100644 toolchain/toolchain-external/toolchain-external-linaro-aarch64/Config.in
 create mode 100644 toolchain/toolchain-external/toolchain-external-linaro-aarch64/Config.in.options
 create mode 100644 toolchain/toolchain-external/toolchain-external-linaro-aarch64/toolchain-external-linaro-aarch64.hash
 create mode 100644 toolchain/toolchain-external/toolchain-external-linaro-aarch64/toolchain-external-linaro-aarch64.mk

diff --git a/toolchain/toolchain-external/toolchain-external-linaro-aarch64/Config.in b/toolchain/toolchain-external/toolchain-external-linaro-aarch64/Config.in
new file mode 100644
index 0000000..662f7d7
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-linaro-aarch64/Config.in
@@ -0,0 +1,15 @@
+config BR2_TOOLCHAIN_EXTERNAL_LINARO_AARCH64
+	bool "Linaro AArch64 2016.05"
+	depends on BR2_aarch64
+	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
+	depends on !BR2_STATIC_LIBS
+	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
+	select BR2_TOOLCHAIN_HAS_SSP
+	select BR2_INSTALL_LIBSTDCPP
+	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_0
+	select BR2_TOOLCHAIN_GCC_AT_LEAST_5
+	select BR2_TOOLCHAIN_HAS_FORTRAN
+	help
+	  Toolchain for the AArch64 architecture, from
+	  http://www.linaro.org/engineering/armv8/
diff --git a/toolchain/toolchain-external/toolchain-external-linaro-aarch64/Config.in.options b/toolchain/toolchain-external/toolchain-external-linaro-aarch64/Config.in.options
new file mode 100644
index 0000000..627f10b
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-linaro-aarch64/Config.in.options
@@ -0,0 +1,6 @@
+if BR2_TOOLCHAIN_EXTERNAL_LINARO_AARCH64
+
+config BR2_PACKAGE_PROVIDES_TOOLCHAIN_EXTERNAL
+	default "toolchain-external-linaro-aarch64"
+
+endif
diff --git a/toolchain/toolchain-external/toolchain-external-linaro-aarch64/toolchain-external-linaro-aarch64.hash b/toolchain/toolchain-external/toolchain-external-linaro-aarch64/toolchain-external-linaro-aarch64.hash
new file mode 100644
index 0000000..7a2c038
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-linaro-aarch64/toolchain-external-linaro-aarch64.hash
@@ -0,0 +1,3 @@
+# Locally calculated
+sha256 d43227248f282a652da42322fcf4abfd3021f2a2f62e0cf6e242d82f55966ba9  gcc-linaro-5.3.1-2016.05-i686_aarch64-linux-gnu.tar.xz
+sha256 1941dcf6229d6706bcb89b7976d5d43d170efdd17c27d5fe1738e7ecf22adc37  gcc-linaro-5.3.1-2016.05-x86_64_aarch64-linux-gnu.tar.xz
diff --git a/toolchain/toolchain-external/toolchain-external-linaro-aarch64/toolchain-external-linaro-aarch64.mk b/toolchain/toolchain-external/toolchain-external-linaro-aarch64/toolchain-external-linaro-aarch64.mk
new file mode 100644
index 0000000..abf2630
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-linaro-aarch64/toolchain-external-linaro-aarch64.mk
@@ -0,0 +1,17 @@
+################################################################################
+#
+# toolchain-external-linaro-aarch64
+#
+################################################################################
+
+TOOLCHAIN_EXTERNAL_LINARO_AARCH64_VERSION = 2016.05
+TOOLCHAIN_EXTERNAL_LINARO_AARCH64_SITE = https://releases.linaro.org/components/toolchain/binaries/5.3-$(TOOLCHAIN_EXTERNAL_LINARO_AARCH64_VERSION)/aarch64-linux-gnu
+TOOLCHAIN_EXTERNAL_LINARO_AARCH64_PREFIX = aarch64-linux-gnu
+
+ifeq ($(HOSTARCH),x86)
+TOOLCHAIN_EXTERNAL_LINARO_AARCH64_SOURCE = gcc-linaro-5.3.1-$(TOOLCHAIN_EXTERNAL_LINARO_AARCH64_VERSION)-i686_aarch64-linux-gnu.tar.xz
+else
+TOOLCHAIN_EXTERNAL_LINARO_AARCH64_SOURCE = gcc-linaro-5.3.1-$(TOOLCHAIN_EXTERNAL_LINARO_AARCH64_VERSION)-x86_64_aarch64-linux-gnu.tar.xz
+endif
+
+$(eval $(toolchain-external-package))
-- 
2.5.5

[Buildroot] [PATCH v2 10/23] toolchain-external-linaro-arm: new package

[Romain Naour]

From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

This commit adds a new package for the Linaro external toolchain for
the ARM architecture. As of this commit, the code is currently not
used, but it will be used as soon as the external toolchain
infrastructure gets introduced in a future commit.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Romain Naour <romain.naour@gmail.com>
---
 .../toolchain-external-linaro-arm/Config.in        | 27 ++++++++++++++++++++++
 .../Config.in.options                              |  6 +++++
 .../toolchain-external-linaro-arm.hash             |  3 +++
 .../toolchain-external-linaro-arm.mk               | 17 ++++++++++++++
 4 files changed, 53 insertions(+)
 create mode 100644 toolchain/toolchain-external/toolchain-external-linaro-arm/Config.in
 create mode 100644 toolchain/toolchain-external/toolchain-external-linaro-arm/Config.in.options
 create mode 100644 toolchain/toolchain-external/toolchain-external-linaro-arm/toolchain-external-linaro-arm.hash
 create mode 100644 toolchain/toolchain-external/toolchain-external-linaro-arm/toolchain-external-linaro-arm.mk

diff --git a/toolchain/toolchain-external/toolchain-external-linaro-arm/Config.in b/toolchain/toolchain-external/toolchain-external-linaro-arm/Config.in
new file mode 100644
index 0000000..bf8649a
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-linaro-arm/Config.in
@@ -0,0 +1,27 @@
+comment "Linaro toolchains available for Cortex-A + EABIhf"
+	depends on BR2_arm
+	depends on !BR2_ARM_CPU_ARMV7A || !BR2_ARM_EABIHF
+	depends on !BR2_STATIC_LIBS
+
+config BR2_TOOLCHAIN_EXTERNAL_LINARO_ARM
+	bool "Linaro ARM 2016.05"
+	depends on BR2_arm
+	depends on BR2_ARM_CPU_ARMV7A
+	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
+	depends on BR2_ARM_EABIHF
+	depends on !BR2_STATIC_LIBS
+	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
+	select BR2_TOOLCHAIN_HAS_SSP
+	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
+	select BR2_INSTALL_LIBSTDCPP
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_0
+	select BR2_TOOLCHAIN_GCC_AT_LEAST_5
+	select BR2_TOOLCHAIN_HAS_FORTRAN
+	help
+	  Linaro toolchain for the ARM architecture. It uses Linaro
+	  GCC 2016.05 (based on gcc 5.3.1), Linaro GDB 2016.05 (based on
+	  GDB 7.11.1), glibc 2.21, Binutils 2016.05 (based on 2.25). It
+	  generates code that runs on all Cortex-A profile devices,
+	  but tuned for the Cortex-A9. The code generated is Thumb 2,
+	  with the hard floating point calling convention, and uses
+	  the VFPv3-D16 FPU instructions.
diff --git a/toolchain/toolchain-external/toolchain-external-linaro-arm/Config.in.options b/toolchain/toolchain-external/toolchain-external-linaro-arm/Config.in.options
new file mode 100644
index 0000000..9d9ecef
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-linaro-arm/Config.in.options
@@ -0,0 +1,6 @@
+if BR2_TOOLCHAIN_EXTERNAL_LINARO_ARM
+
+config BR2_PACKAGE_PROVIDES_TOOLCHAIN_EXTERNAL
+	default "toolchain-external-linaro-arm"
+
+endif
diff --git a/toolchain/toolchain-external/toolchain-external-linaro-arm/toolchain-external-linaro-arm.hash b/toolchain/toolchain-external/toolchain-external-linaro-arm/toolchain-external-linaro-arm.hash
new file mode 100644
index 0000000..8106426
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-linaro-arm/toolchain-external-linaro-arm.hash
@@ -0,0 +1,3 @@
+# Locally calculated
+sha256 f1421c580ce977226f4fefc9c409b3b423260cc65a6e9dc6da88bb3478a521a0  gcc-linaro-5.3.1-2016.05-i686_arm-linux-gnueabihf.tar.xz
+sha256 987941c9fffdf56ffcbe90e8984673c16648c477b537fcf43add22fa62f161cd  gcc-linaro-5.3.1-2016.05-x86_64_arm-linux-gnueabihf.tar.xz
diff --git a/toolchain/toolchain-external/toolchain-external-linaro-arm/toolchain-external-linaro-arm.mk b/toolchain/toolchain-external/toolchain-external-linaro-arm/toolchain-external-linaro-arm.mk
new file mode 100644
index 0000000..bb7718a
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-linaro-arm/toolchain-external-linaro-arm.mk
@@ -0,0 +1,17 @@
+################################################################################
+#
+# toolchain-external-linaro-arm
+#
+################################################################################
+
+TOOLCHAIN_EXTERNAL_LINARO_ARM_VERSION = 2016.05
+TOOLCHAIN_EXTERNAL_LINARO_ARM_SITE = https://releases.linaro.org/components/toolchain/binaries/5.3-$(TOOLCHAIN_EXTERNAL_LINARO_ARM_VERSION)/arm-linux-gnueabihf
+TOOLCHAIN_EXTERNAL_LINARO_ARM_PREFIX = arm-linux-gnueabihf
+
+ifeq ($(HOSTARCH),x86)
+TOOLCHAIN_EXTERNAL_LINARO_ARM_SOURCE = gcc-linaro-5.3.1-$(TOOLCHAIN_EXTERNAL_LINARO_ARM_VERSION)-i686_arm-linux-gnueabihf.tar.xz
+else
+TOOLCHAIN_EXTERNAL_LINARO_ARM_SOURCE = gcc-linaro-5.3.1-$(TOOLCHAIN_EXTERNAL_LINARO_ARM_VERSION)-x86_64_arm-linux-gnueabihf.tar.xz
+endif
+
+$(eval $(toolchain-external-package))
-- 
2.5.5

[Buildroot] [PATCH v2 11/23] toolchain-external-linaro-armeb: new package

[Romain Naour]

This commit adds a new package for the Linaro external toolchain for
the ARM big endian architecture. As of this commit, the code is currently
not used, but it will be used as soon as the external toolchain
infrastructure gets introduced in a future commit.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Romain Naour <romain.naour@gmail.com>
---
 .../toolchain-external-linaro-armeb/Config.in      | 26 ++++++++++++++++++++++
 .../Config.in.options                              |  6 +++++
 .../toolchain-external-linaro-armeb.hash           |  3 +++
 .../toolchain-external-linaro-armeb.mk             | 17 ++++++++++++++
 4 files changed, 52 insertions(+)
 create mode 100644 toolchain/toolchain-external/toolchain-external-linaro-armeb/Config.in
 create mode 100644 toolchain/toolchain-external/toolchain-external-linaro-armeb/Config.in.options
 create mode 100644 toolchain/toolchain-external/toolchain-external-linaro-armeb/toolchain-external-linaro-armeb.hash
 create mode 100644 toolchain/toolchain-external/toolchain-external-linaro-armeb/toolchain-external-linaro-armeb.mk

diff --git a/toolchain/toolchain-external/toolchain-external-linaro-armeb/Config.in b/toolchain/toolchain-external/toolchain-external-linaro-armeb/Config.in
new file mode 100644
index 0000000..ed84c47
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-linaro-armeb/Config.in
@@ -0,0 +1,26 @@
+comment "Linaro toolchains available for Cortex-A + EABIhf"
+	depends on BR2_armeb
+	depends on !BR2_ARM_CPU_ARMV7A || !BR2_ARM_EABIHF
+	depends on !BR2_STATIC_LIBS
+
+config BR2_TOOLCHAIN_EXTERNAL_LINARO_ARMEB
+	bool "Linaro armeb 2016.05"
+	depends on BR2_armeb
+	depends on BR2_ARM_CPU_ARMV7A
+	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
+	depends on BR2_ARM_EABIHF
+	depends on !BR2_STATIC_LIBS
+	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
+	select BR2_TOOLCHAIN_HAS_SSP
+	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
+	select BR2_INSTALL_LIBSTDCPP
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_0
+	select BR2_TOOLCHAIN_GCC_AT_LEAST_5
+	help
+	  Linaro toolchain for the ARM big endian architecture. It
+	  uses Linaro GCC 2016.05 (based on gcc 5.3.1), Linaro GDB
+	  2016.05 (based on GDB 7.11.1), glibc 2.21, Binutils 2016.05
+	  (based on 2.25). It generates code that runs on all Cortex-A
+	  profile devices, but tuned for the Cortex-A9. The code
+	  generated is Thumb 2, with the hard floating point calling
+	  convention, and uses the VFPv3-D16 FPU instructions.
diff --git a/toolchain/toolchain-external/toolchain-external-linaro-armeb/Config.in.options b/toolchain/toolchain-external/toolchain-external-linaro-armeb/Config.in.options
new file mode 100644
index 0000000..0fa7619
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-linaro-armeb/Config.in.options
@@ -0,0 +1,6 @@
+if BR2_TOOLCHAIN_EXTERNAL_LINARO_ARMEB
+
+config BR2_PACKAGE_PROVIDES_TOOLCHAIN_EXTERNAL
+	default "toolchain-external-linaro-armeb"
+
+endif
diff --git a/toolchain/toolchain-external/toolchain-external-linaro-armeb/toolchain-external-linaro-armeb.hash b/toolchain/toolchain-external/toolchain-external-linaro-armeb/toolchain-external-linaro-armeb.hash
new file mode 100644
index 0000000..7952b50
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-linaro-armeb/toolchain-external-linaro-armeb.hash
@@ -0,0 +1,3 @@
+# Locally calculated
+sha256 f6e9c0d3320760fe8f89e9ec3acdd7b4da7eff889c094b4a2acc286fd46f334f  gcc-linaro-5.3.1-2016.05-i686_armeb-linux-gnueabihf.tar.xz
+sha256 6cf41c8944be56279cc14992aa075174b7a4c5938502536266eaaeef048f9440  gcc-linaro-5.3.1-2016.05-x86_64_armeb-linux-gnueabihf.tar.xz
diff --git a/toolchain/toolchain-external/toolchain-external-linaro-armeb/toolchain-external-linaro-armeb.mk b/toolchain/toolchain-external/toolchain-external-linaro-armeb/toolchain-external-linaro-armeb.mk
new file mode 100644
index 0000000..9d4d843
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-linaro-armeb/toolchain-external-linaro-armeb.mk
@@ -0,0 +1,17 @@
+################################################################################
+#
+# toolchain-external-linaro-armeb
+#
+################################################################################
+
+TOOLCHAIN_EXTERNAL_LINARO_ARMEB_VERSION = 2016.05
+TOOLCHAIN_EXTERNAL_LINARO_ARMEB_SITE = https://releases.linaro.org/components/toolchain/binaries/5.3-$(TOOLCHAIN_EXTERNAL_LINARO_ARMEB_VERSION)/armeb-linux-gnueabihf
+TOOLCHAIN_EXTERNAL_LINARO_ARMEB_PREFIX = armeb-linux-gnueabihf
+
+ifeq ($(HOSTARCH),x86)
+TOOLCHAIN_EXTERNAL_LINARO_ARMEB_SOURCE = gcc-linaro-5.3.1-$(TOOLCHAIN_EXTERNAL_LINARO_ARMEB_VERSION)-i686_armeb-linux-gnueabihf.tar.xz
+else
+TOOLCHAIN_EXTERNAL_LINARO_ARMEB_SOURCE = gcc-linaro-5.3.1-$(TOOLCHAIN_EXTERNAL_LINARO_ARMEB_VERSION)-x86_64_armeb-linux-gnueabihf.tar.xz
+endif
+
+$(eval $(toolchain-external-package))
-- 
2.5.5

[Buildroot] [PATCH v2 12/23] toolchain-external-musl-cross: new package

[Romain Naour]

From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

This commit adds a new package for the pre-built Musl external
toolchains. As of this commit, the code is currently not used, but it
will be used as soon as the external toolchain infrastructure gets
introduced in a future commit.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Romain Naour <romain.naour@gmail.com>
---
 .../toolchain-external-musl-cross/Config.in        | 30 ++++++++++++++++++
 .../Config.in.options                              |  6 ++++
 .../toolchain-external-musl-cross.hash             | 12 ++++++++
 .../toolchain-external-musl-cross.mk               | 36 ++++++++++++++++++++++
 4 files changed, 84 insertions(+)
 create mode 100644 toolchain/toolchain-external/toolchain-external-musl-cross/Config.in
 create mode 100644 toolchain/toolchain-external/toolchain-external-musl-cross/Config.in.options
 create mode 100644 toolchain/toolchain-external/toolchain-external-musl-cross/toolchain-external-musl-cross.hash
 create mode 100644 toolchain/toolchain-external/toolchain-external-musl-cross/toolchain-external-musl-cross.mk

diff --git a/toolchain/toolchain-external/toolchain-external-musl-cross/Config.in b/toolchain/toolchain-external/toolchain-external-musl-cross/Config.in
new file mode 100644
index 0000000..5cffa2d
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-musl-cross/Config.in
@@ -0,0 +1,30 @@
+config BR2_TOOLCHAIN_EXTERNAL_MUSL_CROSS
+	bool "Musl 1.1.12 toolchain"
+	depends on (BR2_arm && BR2_ARM_EABI && BR2_USE_MMU) || \
+		(BR2_arm && BR2_ARM_EABIHF && !BR2_ARM_CPU_ARMV4 && BR2_USE_MMU) || \
+		(BR2_armeb && BR2_ARM_EABI && !BR2_ARM_CPU_ARMV7A && BR2_USE_MMU) || \
+		BR2_i386 || (BR2_mips && !BR2_SOFT_FLOAT) || \
+		BR2_mipsel || (BR2_powerpc && BR2_powerpc_CLASSIC) || \
+		BR2_sh4 || BR2_sh4eb || \
+		BR2_x86_64
+	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
+	# Unsupported MIPS cores
+	depends on !BR2_mips_interaptiv && !BR2_mips_m5100 && !BR2_mips_m5101
+	# Unsupported for MIPS R6
+	depends on !BR2_MIPS_CPU_MIPS32R6 && !BR2_MIPS_CPU_MIPS64R6
+	select BR2_TOOLCHAIN_EXTERNAL_MUSL
+	select BR2_TOOLCHAIN_HAS_SSP
+	select BR2_INSTALL_LIBSTDCPP
+	select BR2_HOSTARCH_NEEDS_IA32_LIBS
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_12
+	select BR2_TOOLCHAIN_GCC_AT_LEAST_5
+	help
+	  Toolchain based on the Musl C library, provided by the
+	  musl-cross project. It uses gcc 5.3, binutils 2.25.1 and
+	  musl 1.1.12. It does not have a cross debugger included.
+
+	  The ARM soft-float toolchain is built for ARMv4t, while the
+	  ARM hard-float toolchain is built for ARMv5t.
+	  The x86 toolchain is built for i486.
+
+	  http://musl.codu.org/
diff --git a/toolchain/toolchain-external/toolchain-external-musl-cross/Config.in.options b/toolchain/toolchain-external/toolchain-external-musl-cross/Config.in.options
new file mode 100644
index 0000000..899b4da
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-musl-cross/Config.in.options
@@ -0,0 +1,6 @@
+if BR2_TOOLCHAIN_EXTERNAL_MUSL_CROSS
+
+config BR2_PACKAGE_PROVIDES_TOOLCHAIN_EXTERNAL
+	default "toolchain-external-musl-cross"
+
+endif
diff --git a/toolchain/toolchain-external/toolchain-external-musl-cross/toolchain-external-musl-cross.hash b/toolchain/toolchain-external/toolchain-external-musl-cross/toolchain-external-musl-cross.hash
new file mode 100644
index 0000000..beef8fd
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-musl-cross/toolchain-external-musl-cross.hash
@@ -0,0 +1,12 @@
+# Locally calculated
+sha256 e32c23d0b83639fc10ad06666ec086b66453b9be44415fe1a818c3c3b526dfb1  crossx86-armeb-linux-musleabi-1.1.12.tar.xz
+sha256 eb81bd5d6ada454c6e854b18bfa8dc801333782152166f6cab9fb7cd11692987  crossx86-arm-linux-musleabi-1.1.12.tar.xz
+sha256 a050da284ff22d291ae71dfc249ebdedb18334b8d626804760ce7d5963e392e6  crossx86-arm-linux-musleabihf-1.1.12.tar.xz
+sha256 18d07f5c8f4cfe373461cf21cf7b1bfefa820a37e96a69b68e0f315d528b4286  crossx86-i486-linux-musl-1.1.12.tar.xz
+sha256 1c1480c2618097e402fe804c1431fbd49b0d43520af81d4c1a695a2fa13a3922  crossx86-mipsel-linux-musl-1.1.12.tar.xz
+sha256 f0a8b3eb0566138ab3cc77bc09648be15bc325da974ec98b9e67f2fb82be3295  crossx86-mipsel-sf-linux-musl-1.1.12.tar.xz
+sha256 6a99989c3dff56776981f6760b2c54dcb9e4032be1d649968bb06c04f2e64177  crossx86-mips-linux-musl-1.1.12.tar.xz
+sha256 c082adc3e8b0750bb22ca82628524fd525fd77f534517ac5a66e7ac5a297ee6e  crossx86-powerpc-linux-musl-1.1.12.tar.xz
+sha256 8c6c9ebb54040e47947b4d3af6823d01fef2bb6ee81b18903c801030c066092b  crossx86-sh4eb-linux-musl-1.1.12.tar.xz
+sha256 ae9a0a5a60226aa086a56628cfd5c1d283c9dffdca37891d7e6adc2bd21ac2e0  crossx86-sh4-linux-musl-1.1.12.tar.xz
+sha256 27e0ea1043a58aebeadf1dacd67e47fd0b5c19fc36f42c9374e5fa3308df09c6  crossx86-x86_64-linux-musl-1.1.12.tar.xz
diff --git a/toolchain/toolchain-external/toolchain-external-musl-cross/toolchain-external-musl-cross.mk b/toolchain/toolchain-external/toolchain-external-musl-cross/toolchain-external-musl-cross.mk
new file mode 100644
index 0000000..0ff4099
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-musl-cross/toolchain-external-musl-cross.mk
@@ -0,0 +1,36 @@
+################################################################################
+#
+# toolchain-external-musl-cross
+#
+################################################################################
+
+TOOLCHAIN_EXTERNAL_MUSL_CROSS_VERSION = 1.1.12
+TOOLCHAIN_EXTERNAL_MUSL_CROSS_SITE = https://googledrive.com/host/0BwnS5DMB0YQ6bDhPZkpOYVFhbk0/musl-$(TOOLCHAIN_EXTERNAL_MUSL_CROSS_VERSION)
+
+ifeq ($(BR2_arm)$(BR2_ARM_EABI),yy)
+TOOLCHAIN_EXTERNAL_MUSL_CROSS_PREFIX = arm-linux-musleabi
+else ifeq ($(BR2_arm)$(BR2_ARM_EABIHF),yy)
+TOOLCHAIN_EXTERNAL_MUSL_CROSS_PREFIX = arm-linux-musleabihf
+else ifeq ($(BR2_armeb),y)
+TOOLCHAIN_EXTERNAL_MUSL_CROSS_PREFIX = armeb-linux-musleabi
+else ifeq ($(BR2_i386),y)
+TOOLCHAIN_EXTERNAL_MUSL_CROSS_PREFIX = i486-linux-musl
+else ifeq ($(BR2_mips):$(BR2_SOFT_FLOAT),y:)
+TOOLCHAIN_EXTERNAL_MUSL_CROSS_PREFIX = mips-linux-musl
+else ifeq ($(BR2_mipsel):$(BR2_SOFT_FLOAT),y:)
+TOOLCHAIN_EXTERNAL_MUSL_CROSS_PREFIX = mipsel-linux-musl
+else ifeq ($(BR2_mipsel):$(BR2_SOFT_FLOAT),y:y)
+TOOLCHAIN_EXTERNAL_MUSL_CROSS_PREFIX = mipsel-sf-linux-musl
+else ifeq ($(BR2_powerpc),y)
+TOOLCHAIN_EXTERNAL_MUSL_CROSS_PREFIX = powerpc-linux-musl
+else ifeq ($(BR2_sh4),y)
+TOOLCHAIN_EXTERNAL_MUSL_CROSS_PREFIX = sh4-linux-musl
+else ifeq ($(BR2_sh4eb),y)
+TOOLCHAIN_EXTERNAL_MUSL_CROSS_PREFIX = sh4eb-linux-musl
+else ifeq ($(BR2_x86_64),y)
+TOOLCHAIN_EXTERNAL_MUSL_CROSS_PREFIX = x86_64-linux-musl
+endif
+
+TOOLCHAIN_EXTERNAL_MUSL_CROSS_SOURCE = crossx86-$(TOOLCHAIN_EXTERNAL_MUSL_CROSS_PREFIX)-$(TOOLCHAIN_EXTERNAL_MUSL_CROSS_VERSION).tar.xz
+
+$(eval $(toolchain-external-package))
-- 
2.5.5

[Buildroot] [PATCH v2 13/23] toolchain-external-codesourcery-aarch64: new package

[Romain Naour]

From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

This commit adds a new package for the Sourcery CodeBench external
toolchain for the AArch64 architecture. As of this commit, the code is
currently not used, but it will be used as soon as the external
toolchain infrastructure gets introduced in a future commit.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Romain Naour <romain.naour@gmail.com>
---
 .../Config.in                                      | 17 ++++++++++++++++
 .../Config.in.options                              |  6 ++++++
 .../toolchain-external-codesourcery-aarch64.hash   |  3 +++
 .../toolchain-external-codesourcery-aarch64.mk     | 23 ++++++++++++++++++++++
 4 files changed, 49 insertions(+)
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-aarch64/Config.in
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-aarch64/Config.in.options
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-aarch64/toolchain-external-codesourcery-aarch64.hash
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-aarch64/toolchain-external-codesourcery-aarch64.mk

diff --git a/toolchain/toolchain-external/toolchain-external-codesourcery-aarch64/Config.in b/toolchain/toolchain-external/toolchain-external-codesourcery-aarch64/Config.in
new file mode 100644
index 0000000..2fbb218
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-codesourcery-aarch64/Config.in
@@ -0,0 +1,17 @@
+config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_AARCH64
+	bool "CodeSourcery AArch64 2014.11"
+	depends on BR2_aarch64
+	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
+	depends on !BR2_STATIC_LIBS
+	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
+	select BR2_TOOLCHAIN_HAS_SSP
+	select BR2_INSTALL_LIBSTDCPP
+	select BR2_HOSTARCH_NEEDS_IA32_LIBS
+	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_16
+	select BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
+	help
+	  Sourcery CodeBench toolchain for the AArch64 architecture,
+	  from Mentor Graphics. It uses gcc 4.9.1, binutils
+	  2.24.51.20140217, glibc 2.20, gdb 7.7.50 and kernel headers
+	  3.16.2.
diff --git a/toolchain/toolchain-external/toolchain-external-codesourcery-aarch64/Config.in.options b/toolchain/toolchain-external/toolchain-external-codesourcery-aarch64/Config.in.options
new file mode 100644
index 0000000..706c35d
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-codesourcery-aarch64/Config.in.options
@@ -0,0 +1,6 @@
+if BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_AARCH64
+
+config BR2_PACKAGE_PROVIDES_TOOLCHAIN_EXTERNAL
+	default "toolchain-external-codesourcery-aarch64"
+
+endif
diff --git a/toolchain/toolchain-external/toolchain-external-codesourcery-aarch64/toolchain-external-codesourcery-aarch64.hash b/toolchain/toolchain-external/toolchain-external-codesourcery-aarch64/toolchain-external-codesourcery-aarch64.hash
new file mode 100644
index 0000000..f7d3f29
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-codesourcery-aarch64/toolchain-external-codesourcery-aarch64.hash
@@ -0,0 +1,3 @@
+# Locally calculated
+sha256 405aada821146755c5f2df566375c2a682456d6b8451ee47b88cf1a52b093676  aarch64-amd-2014.11-95-aarch64-amd-linux-gnu-i686-pc-linux-gnu.tar.bz2
+sha256 3f50dd6ee433eb5b6992a1071b988e50379a738f54f58722bc60081613764716  aarch64-amd-2014.11-95-aarch64-amd-linux-gnu.src.tar.bz2
diff --git a/toolchain/toolchain-external/toolchain-external-codesourcery-aarch64/toolchain-external-codesourcery-aarch64.mk b/toolchain/toolchain-external/toolchain-external-codesourcery-aarch64/toolchain-external-codesourcery-aarch64.mk
new file mode 100644
index 0000000..198e9e0
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-codesourcery-aarch64/toolchain-external-codesourcery-aarch64.mk
@@ -0,0 +1,23 @@
+################################################################################
+#
+# toolchain-external-codesourcery-aarch64
+#
+################################################################################
+
+TOOLCHAIN_EXTERNAL_CODESOURCERY_AARCH64_SITE = http://sourcery.mentor.com/public/gnu_toolchain/$(TOOLCHAIN_EXTERNAL_CODESOURCERY_AARCH64_PREFIX)
+TOOLCHAIN_EXTERNAL_CODESOURCERY_AARCH64_VERSION = 2014.11-95
+TOOLCHAIN_EXTERNAL_CODESOURCERY_AARCH64_SOURCE = aarch64-amd-$(TOOLCHAIN_EXTERNAL_CODESOURCERY_AARCH64_VERSION)-$(TOOLCHAIN_EXTERNAL_CODESOURCERY_AARCH64_PREFIX)-i686-pc-linux-gnu.tar.bz2
+TOOLCHAIN_EXTERNAL_CODESOURCERY_AARCH64_ACTUAL_SOURCE_TARBALL = aarch64-amd-$(TOOLCHAIN_EXTERNAL_CODESOURCERY_AARCH64_VERSION)-$(TOOLCHAIN_EXTERNAL_CODESOURCERY_AARCH64_PREFIX).src.tar.bz2
+TOOLCHAIN_EXTERNAL_CODESOURCERY_AARCH64_PREFIX = aarch64-amd-linux-gnu
+
+define TOOLCHAIN_EXTERNAL_CODESOURCERY_AARCH64_STAGING_FIXUP
+	ln -sf ld-2.20.so $(STAGING_DIR)/lib/ld-linux-aarch64.so.1
+endef
+TOOLCHAIN_EXTERNAL_CODESOURCERY_AARCH64_POST_INSTALL_STAGING_HOOKS += TOOLCHAIN_EXTERNAL_CODESOURCERY_AARCH64_STAGING_FIXUP
+
+define TOOLCHAIN_EXTERNAL_CODESOURCERY_AARCH64_TARGET_FIXUP
+	ln -sf ld-2.20.so $(TARGET_DIR)/lib/ld-linux-aarch64.so.1
+endef
+TOOLCHAIN_EXTERNAL_CODESOURCERY_AARCH64_POST_INSTALL_TARGET_HOOKS += TOOLCHAIN_EXTERNAL_CODESOURCERY_AARCH64_TARGET_FIXUP
+
+$(eval $(toolchain-external-package))
-- 
2.5.5

[Buildroot] [PATCH v2 14/23] toolchain-external-codesourcery-arm: new package

[Romain Naour]

From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

This commit adds a new package for the Sourcery CodeBench external
toolchain for the ARM architecture. As of this commit, the code is
currently not used, but it will be used as soon as the external
toolchain infrastructure gets introduced in a future commit.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Romain Naour <romain.naour@gmail.com>
---
 .../toolchain-external-codesourcery-arm/Config.in  | 33 ++++++++++++++++++++++
 .../Config.in.options                              |  6 ++++
 .../toolchain-external-codesourcery-arm.hash       |  3 ++
 .../toolchain-external-codesourcery-arm.mk         | 14 +++++++++
 4 files changed, 56 insertions(+)
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-arm/Config.in
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-arm/Config.in.options
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-arm/toolchain-external-codesourcery-arm.hash
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-arm/toolchain-external-codesourcery-arm.mk

diff --git a/toolchain/toolchain-external/toolchain-external-codesourcery-arm/Config.in b/toolchain/toolchain-external/toolchain-external-codesourcery-arm/Config.in
new file mode 100644
index 0000000..037985b
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-codesourcery-arm/Config.in
@@ -0,0 +1,33 @@
+config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM
+	bool "Sourcery CodeBench ARM 2014.05"
+	depends on BR2_arm
+	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
+	depends on BR2_ARM_EABI
+	depends on !BR2_STATIC_LIBS
+	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
+	select BR2_TOOLCHAIN_HAS_SSP
+	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
+	select BR2_INSTALL_LIBSTDCPP
+	select BR2_HOSTARCH_NEEDS_IA32_LIBS
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_13
+	select BR2_TOOLCHAIN_GCC_AT_LEAST_4_8
+	help
+	  Sourcery CodeBench toolchain for the ARM architecture, from
+	  Mentor Graphics. It uses gcc 4.8.3, binutils 2.24.51, glibc
+	  2.18 and gdb 7.7.50, kernel headers 3.13. It has support
+	  for the following variants:
+	    - ARMv5TE, little endian, soft-float, glibc
+	      Select ARM926T, ARM10T, XScale or another ARMv5 core
+	      Select BR2_SOFT_FLOAT
+	    - ARMv4T, little endian, soft-float, glibc
+	      Select ARM720T, ARM920T, ARM922T or another ARMv4 core
+	      Select BR2_SOFT_FLOAT
+	    - ARMv7-A, Thumb 2, little endian, soft-float, glibc
+	      Select Cortex-A8, Cortex-A9 or another ARMv7-A core
+	      Select BR2_SOFT_FLOAT
+	      Set BR2_TARGET_OPTIMIZATION to -mthumb
+
+comment "Sourcery CodeBench toolchains available for the EABI ABI"
+	depends on BR2_arm
+	depends on !BR2_ARM_EABI
+	depends on !BR2_STATIC_LIBS
diff --git a/toolchain/toolchain-external/toolchain-external-codesourcery-arm/Config.in.options b/toolchain/toolchain-external/toolchain-external-codesourcery-arm/Config.in.options
new file mode 100644
index 0000000..59634d5
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-codesourcery-arm/Config.in.options
@@ -0,0 +1,6 @@
+if BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM
+
+config BR2_PACKAGE_PROVIDES_TOOLCHAIN_EXTERNAL
+	default "toolchain-external-codesourcery-arm"
+
+endif
diff --git a/toolchain/toolchain-external/toolchain-external-codesourcery-arm/toolchain-external-codesourcery-arm.hash b/toolchain/toolchain-external/toolchain-external-codesourcery-arm/toolchain-external-codesourcery-arm.hash
new file mode 100644
index 0000000..535f4aa
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-codesourcery-arm/toolchain-external-codesourcery-arm.hash
@@ -0,0 +1,3 @@
+# Locally calculated
+sha256 39ee0e789034334ecc89af94e838e3a4815400ac5ff980f808f466b04778532e  arm-2014.05-29-arm-none-linux-gnueabi-i686-pc-linux-gnu.tar.bz2
+sha256 e16a5b1e41d7ff1e74161f9405182001bc8d1360d89564e73911032e6966cc0d  arm-2014.05-29-arm-none-linux-gnueabi.src.tar.bz2
diff --git a/toolchain/toolchain-external/toolchain-external-codesourcery-arm/toolchain-external-codesourcery-arm.mk b/toolchain/toolchain-external/toolchain-external-codesourcery-arm/toolchain-external-codesourcery-arm.mk
new file mode 100644
index 0000000..9df156c
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-codesourcery-arm/toolchain-external-codesourcery-arm.mk
@@ -0,0 +1,14 @@
+################################################################################
+#
+# toolchain-external-codesourcery-arm
+#
+################################################################################
+
+TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM_VERSION = 2014.05-29
+
+TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM_SITE = http://sourcery.mentor.com/public/gnu_toolchain/$(TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM_PREFIX)
+TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM_SOURCE = arm-$(TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM_VERSION)-$(TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM_PREFIX)-i686-pc-linux-gnu.tar.bz2
+TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM_ACTUAL_SOURCE_TARBALL = arm-$(TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM_VERSION)-$(TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM_PREFIX).src.tar.bz2
+TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM_PREFIX = arm-none-linux-gnueabi
+
+$(eval $(toolchain-external-package))
-- 
2.5.5

[Buildroot] [PATCH v2 15/23] toolchain-external-codesourcery-mips: new package

[Romain Naour]

From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

This commit adds a new package for the Sourcery CodeBench external
toolchain for the MIPS architecture. As of this commit, the code is
currently not used, but it will be used as soon as the external
toolchain infrastructure gets introduced in a future commit.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Romain Naour <romain.naour@gmail.com>
---
 .../toolchain-external-codesourcery-mips/Config.in | 93 ++++++++++++++++++++++
 .../Config.in.options                              |  6 ++
 .../toolchain-external-codesourcery-mips.hash      |  3 +
 .../toolchain-external-codesourcery-mips.mk        | 14 ++++
 4 files changed, 116 insertions(+)
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-mips/Config.in
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-mips/Config.in.options
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-mips/toolchain-external-codesourcery-mips.hash
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-mips/toolchain-external-codesourcery-mips.mk

diff --git a/toolchain/toolchain-external/toolchain-external-codesourcery-mips/Config.in b/toolchain/toolchain-external/toolchain-external-codesourcery-mips/Config.in
new file mode 100644
index 0000000..6a13ae6
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-codesourcery-mips/Config.in
@@ -0,0 +1,93 @@
+config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS
+	bool "Sourcery CodeBench MIPS 2016.05"
+	depends on BR2_mips || BR2_mipsel || BR2_mips64 || BR2_mips64el
+	depends on BR2_MIPS_CPU_MIPS32R2 || BR2_MIPS_CPU_MIPS64R2
+	# Unsupported MIPS cores
+	depends on !BR2_mips_interaptiv
+	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
+	depends on !BR2_MIPS_NABI32
+	depends on !BR2_STATIC_LIBS
+	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
+	select BR2_TOOLCHAIN_HAS_SSP
+	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
+	select BR2_INSTALL_LIBSTDCPP
+	select BR2_HOSTARCH_NEEDS_IA32_LIBS
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_4
+	select BR2_TOOLCHAIN_GCC_AT_LEAST_5
+	help
+	  Sourcery CodeBench toolchain for the MIPS architecture, from
+	  Mentor Graphics. It uses gcc 5.3, binutils 2.25.51, glibc
+	  2.23, uClibc 0.9.30 and gdb 7.10.50, kernel headers 4.4.1. It
+	  has support for the following variants:
+	    - MIPS32r2 - Big-Endian, 2008 NaN, O32
+	      Select MIPS (big endian) core
+	      Disable BR2_SOFT_FLOAT
+	      Set BR2_TARGET_OPTIMIZATION to -mnan=2008
+	    - MIPS32r2 - Big-Endian, O32
+	      Select MIPS (big endian) core
+	      Disable BR2_SOFT_FLOAT
+	    - MIPS32r2 - Big-Endian, O32, MIPS16
+	      Select MIPS (big endian) core
+	      Disable BR2_SOFT_FLOAT
+	      Set BR2_TARGET_OPTIMIZATION to -mips16
+	    - MIPS32r2 - Big-Endian, Soft-Float, O32
+	      Select MIPS (big endian) core
+	      Select BR2_SOFT_FLOAT
+	    - MIPS32r2 - Big-Endian, Soft-Float, O32, MIPS16
+	      Select MIPS (big endian) core
+	      Select BR2_SOFT_FLOAT
+	      Set BR2_TARGET_OPTIMIZATION to -mips16
+	    - MIPS32r2 - Little-Endian, 2008 NaN, O32
+	      Select MIPS (little endian) core
+	      Disable BR2_SOFT_FLOAT
+	      Set BR2_TARGET_OPTIMIZATION to -mnan=2008
+	    - MIPS32r2 - Little-Endian, O32
+	      Select MIPS (little endian) core
+	      Disable BR2_SOFT_FLOAT
+	    - MIPS32r2 - Little-Endian, O32, MIPS16
+	      Select MIPS (little endian) core
+	      Disable BR2_SOFT_FLOAT
+	      Set BR2_TARGET_OPTIMIZATION to -mips16
+	    - MIPS32r2 - Little-Endian, Soft-Float, O32
+	      Select MIPS (little endian) core
+	      Select BR2_SOFT_FLOAT
+	    - MIPS32r2 - Little-Endian, Soft-Float, O32, MIPS16
+	      Select MIPS (little endian) core
+	      Select BR2_SOFT_FLOAT
+	      Set BR2_TARGET_OPTIMIZATION to -mips16
+	    - MIPS32r2 - Little-Endian, Soft-Float, O32, microMIPS
+	      Select MIPS (little endian) core
+	      Select BR2_SOFT_FLOAT
+	      Set BR2_TARGET_OPTIMIZATION to -mmicromips
+	    - MIPS32r2 - uClibc, Big-Endian, 2008 NaN, O32
+	      Not usable in Buildroot yet.
+	    - MIPS32r2 - uClibc, Big-Endian, O32
+	      Not usable in Buildroot yet.
+	    - MIPS32r2 - uClibc, Big-Endian, Soft-Float, O32
+	      Not usable in Buildroot yet.
+	    - MIPS32r2 - uClibc, Little-Endian, 2008 NaN, O32
+	      Not usable in Buildroot yet.
+	    - MIPS32r2 - uClibc, Little-Endian, O32
+	      Not usable in Buildroot yet.
+	    - MIPS32r2 - uClibc, Little-Endian, Soft-Float, O32
+	      Not usable in Buildroot yet.
+	    - MIPS64r2 - Big-Endian, N64
+	      Select MIPS64 (big endian) core
+	      Select the n64 ABI
+	      Disable BR2_SOFT_FLOAT
+	    - MIPS64r2 - Big-Endian, Soft-Float, N64
+	      Select MIPS64 (big endian) core
+	      Select the n64 ABI
+	      Select BR2_SOFT_FLOAT
+	    - MIPS64r2 - Little-Endian, N64
+	      Select MIPS64 (little endian) core
+	      Select the n64 ABI
+	      Disable BR2_SOFT_FLOAT
+	    - MIPS64r2 - Little-Endian, Soft-Float, N64
+	      Select MIPS64 (little endian) core
+	      Select the n64 ABI
+	      Select BR2_SOFT_FLOAT
+
+comment "Sourcery CodeBench toolchains are only available for MIPS/MIPS64 o32 and n64"
+	depends on BR2_MIPS_NABI32
+	depends on !BR2_STATIC_LIBS
diff --git a/toolchain/toolchain-external/toolchain-external-codesourcery-mips/Config.in.options b/toolchain/toolchain-external/toolchain-external-codesourcery-mips/Config.in.options
new file mode 100644
index 0000000..7381a07
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-codesourcery-mips/Config.in.options
@@ -0,0 +1,6 @@
+if BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS
+
+config BR2_PACKAGE_PROVIDES_TOOLCHAIN_EXTERNAL
+	default "toolchain-external-codesourcery-mips"
+
+endif
diff --git a/toolchain/toolchain-external/toolchain-external-codesourcery-mips/toolchain-external-codesourcery-mips.hash b/toolchain/toolchain-external/toolchain-external-codesourcery-mips/toolchain-external-codesourcery-mips.hash
new file mode 100644
index 0000000..2d80338
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-codesourcery-mips/toolchain-external-codesourcery-mips.hash
@@ -0,0 +1,3 @@
+# Locally computed
+sha256 d354447c4c5160439dafd5464fa3a0266dd41e79f973477238e4f0215a6b5397  mips-2016.05-8-mips-linux-gnu-i686-pc-linux-gnu.tar.bz2
+sha256 2658e55d5b71bba25d6f77e868e18b200ea5f75c8add7ed3a9266e716d9adfff  mips-2016.05-8-mips-linux-gnu.src.tar.bz2
diff --git a/toolchain/toolchain-external/toolchain-external-codesourcery-mips/toolchain-external-codesourcery-mips.mk b/toolchain/toolchain-external/toolchain-external-codesourcery-mips/toolchain-external-codesourcery-mips.mk
new file mode 100644
index 0000000..868b0d4
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-codesourcery-mips/toolchain-external-codesourcery-mips.mk
@@ -0,0 +1,14 @@
+################################################################################
+#
+# toolchain-external-codesourcery-mips
+#
+################################################################################
+
+TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS_VERSION = 2016.05-8
+
+TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS_SITE = http://sourcery.mentor.com/public/gnu_toolchain/$(TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS_PREFIX)
+TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS_SOURCE = mips-$(TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS_VERSION)-$(TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS_PREFIX)-i686-pc-linux-gnu.tar.bz2
+TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS_ACTUAL_SOURCE_TARBALL = mips-$(TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS_VERSION)-$(TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS_PREFIX).src.tar.bz2
+TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS_PREFIX = mips-linux-gnu
+
+$(eval $(toolchain-external-package))
-- 
2.5.5

[Buildroot] [PATCH v2 16/23] toolchain-external-codesourcery-niosII: new package

[Romain Naour]

From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

This commit adds a new package for the Sourcery CodeBench external
toolchain for the NIOS2 architecture. As of this commit, the code is
currently not used, but it will be used as soon as the external
toolchain infrastructure gets introduced in a future commit.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Romain Naour <romain.naour@gmail.com>
---
 .../toolchain-external-codesourcery-niosII/Config.in    | 17 +++++++++++++++++
 .../Config.in.options                                   |  6 ++++++
 .../toolchain-external-codesourcery-niosII.hash         |  3 +++
 .../toolchain-external-codesourcery-niosII.mk           | 14 ++++++++++++++
 4 files changed, 40 insertions(+)
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-niosII/Config.in
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-niosII/Config.in.options
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-niosII/toolchain-external-codesourcery-niosII.hash
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-niosII/toolchain-external-codesourcery-niosII.mk

diff --git a/toolchain/toolchain-external/toolchain-external-codesourcery-niosII/Config.in b/toolchain/toolchain-external/toolchain-external-codesourcery-niosII/Config.in
new file mode 100644
index 0000000..54eed8c
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-codesourcery-niosII/Config.in
@@ -0,0 +1,17 @@
+config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_NIOSII
+	bool "Sourcery CodeBench Nios-II 2016.05"
+	depends on BR2_nios2
+	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
+	depends on !BR2_STATIC_LIBS
+	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
+	select BR2_TOOLCHAIN_HAS_SSP
+	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
+	select BR2_INSTALL_LIBSTDCPP
+	select BR2_HOSTARCH_NEEDS_IA32_LIBS
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_4
+	select BR2_TOOLCHAIN_GCC_AT_LEAST_5
+	select BR2_TOOLCHAIN_HAS_BINUTILS_BUG_19405 # based-on binutils-2.25.1
+	help
+	  Sourcery CodeBench toolchain for the Nios-II architecture,
+	  from Mentor Graphics. It uses gcc 5.3, binutils 2.25.51,
+	  glibc 2.23, gdb 7.10.50 and kernel headers 4.4.
diff --git a/toolchain/toolchain-external/toolchain-external-codesourcery-niosII/Config.in.options b/toolchain/toolchain-external/toolchain-external-codesourcery-niosII/Config.in.options
new file mode 100644
index 0000000..9d41db8
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-codesourcery-niosII/Config.in.options
@@ -0,0 +1,6 @@
+if BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_NIOSII
+
+config BR2_PACKAGE_PROVIDES_TOOLCHAIN_EXTERNAL
+	default "toolchain-external-codesourcery-niosII"
+
+endif
diff --git a/toolchain/toolchain-external/toolchain-external-codesourcery-niosII/toolchain-external-codesourcery-niosII.hash b/toolchain/toolchain-external/toolchain-external-codesourcery-niosII/toolchain-external-codesourcery-niosII.hash
new file mode 100644
index 0000000..a60c49f
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-codesourcery-niosII/toolchain-external-codesourcery-niosII.hash
@@ -0,0 +1,3 @@
+# Locally calculated
+sha256 750639290744adda931c81fa2cd2ffc2bde972488047824dcfaa53c42562191d  sourceryg++-2016.05-10-nios2-linux-gnu-i686-pc-linux-gnu.tar.bz2
+sha256 3dc1c2685c0472059547dd7becb5dc991541b8176af39fa7aa5f601d38b9879a  sourceryg++-2016.05-10-nios2-linux-gnu.src.tar.bz2
diff --git a/toolchain/toolchain-external/toolchain-external-codesourcery-niosII/toolchain-external-codesourcery-niosII.mk b/toolchain/toolchain-external/toolchain-external-codesourcery-niosII/toolchain-external-codesourcery-niosII.mk
new file mode 100644
index 0000000..be86e99
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-codesourcery-niosII/toolchain-external-codesourcery-niosII.mk
@@ -0,0 +1,14 @@
+################################################################################
+#
+# toolchain-external-codesourcery-niosII
+#
+################################################################################
+
+TOOLCHAIN_EXTERNAL_CODESOURCERY_NIOSII_VERSION = 2016.05-10
+
+TOOLCHAIN_EXTERNAL_CODESOURCERY_NIOSII_SITE = http://sourcery.mentor.com/public/gnu_toolchain/$(TOOLCHAIN_EXTERNAL_CODESOURCERY_NIOSII_PREFIX)
+TOOLCHAIN_EXTERNAL_CODESOURCERY_NIOSII_SOURCE = sourceryg++-$(TOOLCHAIN_EXTERNAL_CODESOURCERY_NIOSII_VERSION)-$(TOOLCHAIN_EXTERNAL_CODESOURCERY_NIOSII_PREFIX)-i686-pc-linux-gnu.tar.bz2
+TOOLCHAIN_EXTERNAL_CODESOURCERY_NIOSII_ACTUAL_SOURCE_TARBALL = sourceryg++-$(TOOLCHAIN_EXTERNAL_CODESOURCERY_NIOSII_VERSION)-$(TOOLCHAIN_EXTERNAL_CODESOURCERY_NIOSII_PREFIX).src.tar.bz2
+TOOLCHAIN_EXTERNAL_CODESOURCERY_NIOSII_PREFIX = nios2-linux-gnu
+
+$(eval $(toolchain-external-package))
-- 
2.5.5

[Buildroot] [PATCH v2 17/23] toolchain-external-codesourcery-sh: new package

[Romain Naour]

From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

This commit adds a new package for the Sourcery CodeBench external
toolchain for the SuperH architecture. As of this commit, the code is
currently not used, but it will be used as soon as the external
toolchain infrastructure gets introduced in a future commit.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Romain Naour <romain.naour@gmail.com>
---
 .../toolchain-external-codesourcery-sh/Config.in   | 25 ++++++++++++++++++++++
 .../Config.in.options                              |  6 ++++++
 .../toolchain-external-codesourcery-sh.hash        |  3 +++
 .../toolchain-external-codesourcery-sh.mk          | 14 ++++++++++++
 4 files changed, 48 insertions(+)
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-sh/Config.in
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-sh/Config.in.options
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-sh/toolchain-external-codesourcery-sh.hash
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-sh/toolchain-external-codesourcery-sh.mk

diff --git a/toolchain/toolchain-external/toolchain-external-codesourcery-sh/Config.in b/toolchain/toolchain-external/toolchain-external-codesourcery-sh/Config.in
new file mode 100644
index 0000000..a47dab7
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-codesourcery-sh/Config.in
@@ -0,0 +1,25 @@
+config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_SH
+	bool "Sourcery CodeBench SH 2012.09"
+	depends on BR2_sh4a || BR2_sh4aeb
+	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
+	depends on !BR2_STATIC_LIBS
+	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
+	select BR2_TOOLCHAIN_HAS_SSP
+	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
+	select BR2_INSTALL_LIBSTDCPP
+	select BR2_HOSTARCH_NEEDS_IA32_LIBS
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_5
+	select BR2_TOOLCHAIN_GCC_AT_LEAST_4_7
+	help
+	  Sourcery CodeBench toolchain for the SuperH architecture,
+	  from Mentor Graphics. It uses gcc 4.7.2, binutils 2.23.51,
+	  glibc 2.16, uClibc 0.9.30, gdb 7.4.50 and kernel headers
+	  3.5.4. It has support for the following variants:
+	    - SH4A, glibc, little endian
+	      Default.
+	    - SH4A, glibc, big endian
+	      Add -mb to BR2_TARGET_OPTIMIZATION
+	    - SH4A, uClibc, little endian
+	      Not usable in Buildroot yet.
+	    - SH4A, uClibc, big endian
+	      Not usable in Buildroot yet.
diff --git a/toolchain/toolchain-external/toolchain-external-codesourcery-sh/Config.in.options b/toolchain/toolchain-external/toolchain-external-codesourcery-sh/Config.in.options
new file mode 100644
index 0000000..3ae5f85
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-codesourcery-sh/Config.in.options
@@ -0,0 +1,6 @@
+if BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_SH
+
+config BR2_PACKAGE_PROVIDES_TOOLCHAIN_EXTERNAL
+	default "toolchain-external-codesourcery-sh"
+
+endif
diff --git a/toolchain/toolchain-external/toolchain-external-codesourcery-sh/toolchain-external-codesourcery-sh.hash b/toolchain/toolchain-external/toolchain-external-codesourcery-sh/toolchain-external-codesourcery-sh.hash
new file mode 100644
index 0000000..ff2ba5f
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-codesourcery-sh/toolchain-external-codesourcery-sh.hash
@@ -0,0 +1,3 @@
+# Locally calculated
+sha256 59d6766fde244931aa52db01433d5acd051998762a931121c5fc109536a1a802  renesas-2012.09-61-sh-linux-gnu-i686-pc-linux-gnu.tar.bz2
+sha256 e2e58c10e52395d5d35157e35f85233f713c6f9223a652dfc56194cfd2eed004  renesas-2012.09-61-sh-linux-gnu.src.tar.bz2
diff --git a/toolchain/toolchain-external/toolchain-external-codesourcery-sh/toolchain-external-codesourcery-sh.mk b/toolchain/toolchain-external/toolchain-external-codesourcery-sh/toolchain-external-codesourcery-sh.mk
new file mode 100644
index 0000000..44ee02c
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-codesourcery-sh/toolchain-external-codesourcery-sh.mk
@@ -0,0 +1,14 @@
+################################################################################
+#
+# toolchain-external-sourcery-sh
+#
+################################################################################
+
+TOOLCHAIN_EXTERNAL_CODESOURCERY_SH_VERSION = 2012.09-61
+
+TOOLCHAIN_EXTERNAL_CODESOURCERY_SH_SITE = https://sourcery.mentor.com/public/gnu_toolchain/$(TOOLCHAIN_EXTERNAL_CODESOURCERY_SH_PREFIX)
+TOOLCHAIN_EXTERNAL_CODESOURCERY_SH_SOURCE = renesas-$(TOOLCHAIN_EXTERNAL_CODESOURCERY_SH_VERSION)-$(TOOLCHAIN_EXTERNAL_CODESOURCERY_SH_PREFIX)-i686-pc-linux-gnu.tar.bz2
+TOOLCHAIN_EXTERNAL_CODESOURCERY_SH_ACTUAL_SOURCE_TARBALL = renesas-$(TOOLCHAIN_EXTERNAL_CODESOURCERY_SH_VERSION)-$(TOOLCHAIN_EXTERNAL_CODESOURCERY_SH_PREFIX).src.tar.bz2
+TOOLCHAIN_EXTERNAL_CODESOURCERY_SH_PREFIX = sh-linux-gnu
+
+$(eval $(toolchain-external-package))
-- 
2.5.5

[Buildroot] [PATCH v2 18/23] toolchain-external-codesourcery-x86: new package

[Romain Naour]

From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

This commit adds a new package for the Sourcery CodeBench external
toolchain for the x86 architecture. As of this commit, the code is
currently not used, but it will be used as soon as the external
toolchain infrastructure gets introduced in a future commit.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Romain Naour <romain.naour@gmail.com>
---
 .../toolchain-external-codesourcery-x86/Config.in  | 29 ++++++++++++++++++++++
 .../Config.in.options                              |  6 +++++
 .../toolchain-external-codesourcery-x86.hash       |  3 +++
 .../toolchain-external-codesourcery-x86.mk         | 13 ++++++++++
 4 files changed, 51 insertions(+)
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-x86/Config.in
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-x86/Config.in.options
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-x86/toolchain-external-codesourcery-x86.hash
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-x86/toolchain-external-codesourcery-x86.mk

diff --git a/toolchain/toolchain-external/toolchain-external-codesourcery-x86/Config.in b/toolchain/toolchain-external/toolchain-external-codesourcery-x86/Config.in
new file mode 100644
index 0000000..bcbdd26
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-codesourcery-x86/Config.in
@@ -0,0 +1,29 @@
+config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_X86
+	bool "Sourcery CodeBench x86/x86_64 2012.09"
+	depends on BR2_i386 || BR2_x86_64
+	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
+	depends on !BR2_STATIC_LIBS
+	depends on !BR2_x86_jaguar
+	depends on !BR2_x86_steamroller
+	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
+	select BR2_TOOLCHAIN_HAS_SSP
+	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
+	select BR2_INSTALL_LIBSTDCPP
+	select BR2_HOSTARCH_NEEDS_IA32_LIBS
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_5
+	select BR2_TOOLCHAIN_GCC_AT_LEAST_4_7
+	help
+	  Sourcery CodeBench toolchain for the x86/x86_64
+	  architectures, from Mentor Graphics. It uses gcc 4.7.2,
+	  binutils 2.23.51, glibc 2.16, gdb 7.4.50 and kernel headers
+	  3.5.4. It has support for the following variants:
+	    - Intel Pentium 4, glibc, 32 bits
+	      Default for x86, nothing special to do.
+	    - Intel Atom, glibc, 32 bits
+	      Select an Atom core
+	    - Intel Xeon, glibc, 64 bits
+	      Default for x86_64, nothing special to do.
+	    - Intel Core 2, glibc, 64 bits
+	      Select a Core 2 core
+	  Other architecture variants (beyond Pentium-4/Xeon) are
+	  supported as well, but glibc is not optimised for it.
diff --git a/toolchain/toolchain-external/toolchain-external-codesourcery-x86/Config.in.options b/toolchain/toolchain-external/toolchain-external-codesourcery-x86/Config.in.options
new file mode 100644
index 0000000..97bebf9
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-codesourcery-x86/Config.in.options
@@ -0,0 +1,6 @@
+if BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_X86
+
+config BR2_PACKAGE_PROVIDES_TOOLCHAIN_EXTERNAL
+	default "toolchain-external-codesourcery-x86"
+
+endif
diff --git a/toolchain/toolchain-external/toolchain-external-codesourcery-x86/toolchain-external-codesourcery-x86.hash b/toolchain/toolchain-external/toolchain-external-codesourcery-x86/toolchain-external-codesourcery-x86.hash
new file mode 100644
index 0000000..a003f7a
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-codesourcery-x86/toolchain-external-codesourcery-x86.hash
@@ -0,0 +1,3 @@
+# Locally calculated
+sha256 ea804cf02014369da52abc4f64e91e96bde2dd2230aca96109459013d4545458  ia32-2012.09-62-i686-pc-linux-gnu-i386-linux.tar.bz2
+sha256 1a9519e415a1e6892c760bf21f7e98f3a633a9d1c5bb8781a96d338e4dd62717  ia32-2012.09-62-i686-pc-linux-gnu.src.tar.bz2
diff --git a/toolchain/toolchain-external/toolchain-external-codesourcery-x86/toolchain-external-codesourcery-x86.mk b/toolchain/toolchain-external/toolchain-external-codesourcery-x86/toolchain-external-codesourcery-x86.mk
new file mode 100644
index 0000000..146b70c
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-codesourcery-x86/toolchain-external-codesourcery-x86.mk
@@ -0,0 +1,13 @@
+################################################################################
+#
+# toolchain-external-codesourcery-x86
+#
+################################################################################
+
+TOOLCHAIN_EXTERNAL_CODESOURCERY_X86_SITE = https://sourcery.mentor.com/public/gnu_toolchain/$(TOOLCHAIN_EXTERNAL_CODESOURCERY_X86_PREFIX)
+TOOLCHAIN_EXTERNAL_CODESOURCERY_X86_VERSION = 2012.09-62
+TOOLCHAIN_EXTERNAL_CODESOURCERY_X86_SOURCE = ia32-$(TOOLCHAIN_EXTERNAL_CODESOURCERY_X86_VERSION)-$(TOOLCHAIN_EXTERNAL_CODESOURCERY_X86_PREFIX)-i386-linux.tar.bz2
+TOOLCHAIN_EXTERNAL_CODESOURCERY_X86_ACTUAL_SOURCE_TARBALL = ia32-$(TOOLCHAIN_EXTERNAL_CODESOURCERY_X86_VERSION)-$(TOOLCHAIN_EXTERNAL_CODESOURCERY_X86_PREFIX).src.tar.bz2
+TOOLCHAIN_EXTERNAL_CODESOURCERY_X86_PREFIX = i686-pc-linux-gnu
+
+$(eval $(toolchain-external-package))
-- 
2.5.5

[Buildroot] [PATCH v2 19/23] toolchain-external-codesourcery-amd64: new package

[Romain Naour]

This commit adds a new package for the Sourcery CodeBench external
toolchain for the x86_64 architecture. As of this commit, the code is
currently not used, but it will be used as soon as the external
toolchain infrastructure gets introduced in a future commit.

Signed-off-by: Romain Naour <romain.naour@gmail.com>
---
 .../Config.in                                      | 24 ++++++++++++++++++++++
 .../Config.in.options                              |  6 ++++++
 .../toolchain-external-codesourcery-amd64.hash     |  3 +++
 .../toolchain-external-codesourcery-amd64.mk       | 13 ++++++++++++
 4 files changed, 46 insertions(+)
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-amd64/Config.in
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-amd64/Config.in.options
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-amd64/toolchain-external-codesourcery-amd64.hash
 create mode 100644 toolchain/toolchain-external/toolchain-external-codesourcery-amd64/toolchain-external-codesourcery-amd64.mk

diff --git a/toolchain/toolchain-external/toolchain-external-codesourcery-amd64/Config.in b/toolchain/toolchain-external/toolchain-external-codesourcery-amd64/Config.in
new file mode 100644
index 0000000..86486c8
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-codesourcery-amd64/Config.in
@@ -0,0 +1,24 @@
+config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_AMD64
+	bool "Sourcery CodeBench AMD64 2015.11"
+	depends on BR2_x86_64
+	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
+	depends on !BR2_STATIC_LIBS
+	depends on BR2_x86_jaguar || BR2_x86_steamroller
+	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
+	select BR2_TOOLCHAIN_HAS_SSP
+	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
+	select BR2_INSTALL_LIBSTDCPP
+	select BR2_HOSTARCH_NEEDS_IA32_LIBS
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_2
+	select BR2_TOOLCHAIN_GCC_AT_LEAST_5
+	help
+	  Sourcery CodeBench toolchain for the amd64 (x86_64)
+	  architectures, from Mentor Graphics. It uses gcc 5.2,
+	  binutils 2.25.51, glibc 2.22, gdb 7.10.50 and kernel headers
+	  4.2. It has support for the following variants:
+	    - AMD Puma/Jaguar (family 16h), glibc
+	    Default for x86_64, nothing special to do.
+	    - AMD Steamroller (family 15h), glibc
+	    Select a steamroller core.
+	  No other architecture variants are supported since glibc
+	  is optimized for one of these two baselines.
diff --git a/toolchain/toolchain-external/toolchain-external-codesourcery-amd64/Config.in.options b/toolchain/toolchain-external/toolchain-external-codesourcery-amd64/Config.in.options
new file mode 100644
index 0000000..9ba67f8
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-codesourcery-amd64/Config.in.options
@@ -0,0 +1,6 @@
+if BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_AMD64
+
+config BR2_PACKAGE_PROVIDES_TOOLCHAIN_EXTERNAL
+	default "toolchain-external-codesourcery-amd64"
+
+endif
diff --git a/toolchain/toolchain-external/toolchain-external-codesourcery-amd64/toolchain-external-codesourcery-amd64.hash b/toolchain/toolchain-external/toolchain-external-codesourcery-amd64/toolchain-external-codesourcery-amd64.hash
new file mode 100644
index 0000000..ea5f300
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-codesourcery-amd64/toolchain-external-codesourcery-amd64.hash
@@ -0,0 +1,3 @@
+# Locally calculated
+sha256 3c31206c8b9277f409ee00e4777ba82dfa6da2a4ca0926501cd5fb6bbd1b407e  amd-2015.11-139-x86_64-amd-linux-gnu-i686-pc-linux-gnu.tar.bz2
+sha256 0b673f5035f97d5d03c31272cddab0f117d39ad76a5ad2a3bc98c156571527de  amd-2015.11-139-x86_64-amd-linux-gnu.src.tar.bz2
diff --git a/toolchain/toolchain-external/toolchain-external-codesourcery-amd64/toolchain-external-codesourcery-amd64.mk b/toolchain/toolchain-external/toolchain-external-codesourcery-amd64/toolchain-external-codesourcery-amd64.mk
new file mode 100644
index 0000000..e82b35f
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-codesourcery-amd64/toolchain-external-codesourcery-amd64.mk
@@ -0,0 +1,13 @@
+################################################################################
+#
+# toolchain-external-codesourcery-amd64
+#
+################################################################################
+
+TOOLCHAIN_EXTERNAL_CODESOURCERY_AMD64_SITE = https://sourcery.mentor.com/public/gnu_toolchain/$(TOOLCHAIN_EXTERNAL_CODESOURCERY_AMD64_PREFIX)
+TOOLCHAIN_EXTERNAL_CODESOURCERY_AMD64_VERSION = 2015.11-139
+TOOLCHAIN_EXTERNAL_CODESOURCERY_AMD64_SOURCE = amd-$(TOOLCHAIN_EXTERNAL_CODESOURCERY_AMD64_VERSION)-$(TOOLCHAIN_EXTERNAL_CODESOURCERY_AMD64_PREFIX)-i686-pc-linux-gnu.tar.bz2
+TOOLCHAIN_EXTERNAL_CODESOURCERY_AMD64_ACTUAL_SOURCE_TARBALL = amd-$(TOOLCHAIN_EXTERNAL_CODESOURCERY_AMD64_VERSION)-$(TOOLCHAIN_EXTERNAL_CODESOURCERY_AMD64_PREFIX).src.tar.bz2
+TOOLCHAIN_EXTERNAL_CODESOURCERY_AMD64_PREFIX = x86_64-amd-linux-gnu
+
+$(eval $(toolchain-external-package))
-- 
2.5.5

[Buildroot] [PATCH v2 20/23] toolchain-external-synopsys-arc: new package

[Romain Naour]

From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

This commit adds a new package for the Synopsys external toolchain for
the ARC architecture. As of this commit, the code is currently not
used, but it will be used as soon as the external toolchain
infrastructure gets introduced in a future commit.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Romain Naour <romain.naour@gmail.com>
---
 .../toolchain-external-synopsys-arc/Config.in      | 20 +++++++++++++++++
 .../Config.in.options                              |  6 +++++
 .../toolchain-external-synopsys-arc.hash           |  5 +++++
 .../toolchain-external-synopsys-arc.mk             | 26 ++++++++++++++++++++++
 4 files changed, 57 insertions(+)
 create mode 100644 toolchain/toolchain-external/toolchain-external-synopsys-arc/Config.in
 create mode 100644 toolchain/toolchain-external/toolchain-external-synopsys-arc/Config.in.options
 create mode 100644 toolchain/toolchain-external/toolchain-external-synopsys-arc/toolchain-external-synopsys-arc.hash
 create mode 100644 toolchain/toolchain-external/toolchain-external-synopsys-arc/toolchain-external-synopsys-arc.mk

diff --git a/toolchain/toolchain-external/toolchain-external-synopsys-arc/Config.in b/toolchain/toolchain-external/toolchain-external-synopsys-arc/Config.in
new file mode 100644
index 0000000..641eca8
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-synopsys-arc/Config.in
@@ -0,0 +1,20 @@
+config BR2_TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC
+	bool "Synopsys ARC 2014.12 toolchain"
+	depends on BR2_arc
+	depends on BR2_HOSTARCH = "x86_64"
+	# does not provide IPv6, and lacks many uClibc features
+	# expected by Buildroot. The next Synopsys toolchain version
+	# should fix those problems.
+	depends on BROKEN
+	select BR2_TOOLCHAIN_EXTERNAL_UCLIBC
+	select BR2_INSTALL_LIBSTDCPP
+	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
+	select BR2_ENABLE_LOCALE
+	select BR2_USE_WCHAR
+	select BR2_TOOLCHAIN_HAS_THREADS
+	select BR2_TOOLCHAIN_HAS_THREADS_DEBUG
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_13
+	select BR2_TOOLCHAIN_GCC_AT_LEAST_4_8
+	help
+	  Toolchain for the ARC cores, from
+	  https://github.com/foss-for-synopsys-dwc-arc-processors/toolchain/releases
diff --git a/toolchain/toolchain-external/toolchain-external-synopsys-arc/Config.in.options b/toolchain/toolchain-external/toolchain-external-synopsys-arc/Config.in.options
new file mode 100644
index 0000000..dfa9d84
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-synopsys-arc/Config.in.options
@@ -0,0 +1,6 @@
+if BR2_TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC
+
+config BR2_PACKAGE_PROVIDES_TOOLCHAIN_EXTERNAL
+	default "toolchain-external-synopsys-arc"
+
+endif
diff --git a/toolchain/toolchain-external/toolchain-external-synopsys-arc/toolchain-external-synopsys-arc.hash b/toolchain/toolchain-external/toolchain-external-synopsys-arc/toolchain-external-synopsys-arc.hash
new file mode 100644
index 0000000..b684cce
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-synopsys-arc/toolchain-external-synopsys-arc.hash
@@ -0,0 +1,5 @@
+# Locally calculated
+sha256 1fa4ea2c8616623205f1c7beca02ea31b019099528a7433e5b020b0876b93bf3  arc_gnu_2014.12_prebuilt_uclibc_le_arc700_linux_install.tar.gz
+sha256 1080f07fcae2bfc176a3ea8d30b9ed8eaecab70fb786639d6ec70cae8322df10  arc_gnu_2014.12_prebuilt_uclibc_be_arc700_linux_install.tar.gz
+sha256 aaaf6facd1f60a3cd2a537154ea39cd7d70501c175e30e01a97e8df6cb8226c7  arc_gnu_2014.12_prebuilt_uclibc_le_archs_linux_install.tar.gz
+sha256 30711c5f15762764d4cd5ec1e6ced5b1fddd03aac41c424b0c4ec8a45d5d79cd  arc_gnu_2014.12_prebuilt_uclibc_be_archs_linux_install.tar.gz
diff --git a/toolchain/toolchain-external/toolchain-external-synopsys-arc/toolchain-external-synopsys-arc.mk b/toolchain/toolchain-external/toolchain-external-synopsys-arc/toolchain-external-synopsys-arc.mk
new file mode 100644
index 0000000..bc3a43c
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-synopsys-arc/toolchain-external-synopsys-arc.mk
@@ -0,0 +1,26 @@
+################################################################################
+#
+# toolchain-external-synopsys-arc
+#
+################################################################################
+
+TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC_VERSION = 2014.12
+TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC_SITE = https://github.com/foss-for-synopsys-dwc-arc-processors/toolchain/releases/download/arc-$(TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC_VERSION)
+
+ifeq ($(BR2_arc750d)$(BR2_arc770d),y)
+TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC_CORE = arc700
+else
+TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC_CORE = archs
+endif
+
+ifeq ($(BR2_arcle),y)
+TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC_ENDIANESS = le
+TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC_PREFIX = arc-linux
+else
+TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC_ENDIANESS = be
+TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC_PREFIX = arceb-linux
+endif
+
+TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC_SOURCE = arc_gnu_$(TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC_VERSION)_prebuilt_uclibc_$(TOOLCHAIN_EXTERNAL_SYNOPSYS_ENDIANESS)_$(TOOLCHAIN_EXTERNAL_SYNOPSYS_CORE)_linux_install.tar.gz
+
+$(eval $(toolchain-external-package))
-- 
2.5.5

[Buildroot] [PATCH v2 21/23] toolchain-external-codescape-img-mips: new package

[Romain Naour]

This commit adds a new package for the Codescape external toolchain for
the MIPS architecture. As of this commit, the code is currently not
used, but it will be used as soon as the external toolchain
infrastructure gets introduced in a future commit.

Signed-off-by: Romain Naour <romain.naour@gmail.com>
Cc: Vicente Olivert Riera <Vincent.Riera@imgtec.com>
---
 .../Config.in                                      | 62 ++++++++++++++++++++++
 .../Config.in.options                              |  6 +++
 .../toolchain-external-codescape-img-mips.hash     |  3 ++
 .../toolchain-external-codescape-img-mips.mk       | 48 +++++++++++++++++
 4 files changed, 119 insertions(+)
 create mode 100644 toolchain/toolchain-external/toolchain-external-codescape-img-mips/Config.in
 create mode 100644 toolchain/toolchain-external/toolchain-external-codescape-img-mips/Config.in.options
 create mode 100644 toolchain/toolchain-external/toolchain-external-codescape-img-mips/toolchain-external-codescape-img-mips.hash
 create mode 100644 toolchain/toolchain-external/toolchain-external-codescape-img-mips/toolchain-external-codescape-img-mips.mk

diff --git a/toolchain/toolchain-external/toolchain-external-codescape-img-mips/Config.in b/toolchain/toolchain-external/toolchain-external-codescape-img-mips/Config.in
new file mode 100644
index 0000000..1f0d4d1
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-codescape-img-mips/Config.in
@@ -0,0 +1,62 @@
+config BR2_TOOLCHAIN_EXTERNAL_CODESCAPE_IMG_MIPS
+	bool "Codescape IMG GNU Linux Toolchain 2016.05"
+	depends on BR2_mips || BR2_mipsel || BR2_mips64 || BR2_mips64el
+	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
+	depends on BR2_MIPS_CPU_MIPS32R6 || (BR2_MIPS_CPU_MIPS64R6 && !BR2_MIPS_SOFT_FLOAT)
+	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
+	select BR2_INSTALL_LIBSTDCPP
+	select BR2_HOSTARCH_NEEDS_IA32_LIBS
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_0
+	select BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
+	select BR2_TOOLCHAIN_HAS_FORTRAN
+	help
+	  Codescape IMG GNU Linux Toolchain 2015.10 for the MIPS
+	  architecture, from Imagination Technologies. It uses gcc
+	  4.9.2, binutils 2.24.90, glibc 2.20, gdb 7.9.1 and kernel
+	  headers 4.0. It has support for the following variants:
+	    - MIPS32r6 - Big-Endian, Hard-Float, 2008 NaN, o32 ABI
+	      Select 'MIPS (big endian)' Target Architecture
+	      Select 'mips 32r6' Target Architecture Variant
+	      Disable 'Use soft-float'
+	    - MIPS32r6 - Big-Endian, Soft-Float, 2008 NaN, o32 ABI
+	      Select 'MIPS (big endian)' Target Architecture
+	      Select 'mips 32r6' Target Architecture Variant
+	      Enable 'Use soft-float'
+	    - MIPS32r6 - Little-Endian, Hard-Float, 2008 NaN, o32 ABI
+	      Select 'MIPS (little endian)' Target Architecture
+	      Select 'mips 32r6' Target Architecture Variant
+	      Disable 'Use soft-float'
+	    - MIPS32r6 - Little-Endian, Soft-Float, 2008 NaN, o32 ABI
+	      Select 'MIPS (little endian)' Target Architecture
+	      Select 'mips 32r6' Target Architecture Variant
+	      Enable 'Use soft-float'
+	    - MIPS32r6 - Little-Endian, Hard-Float, 2008 NaN, o32 ABI, microMIPS
+	      Select 'MIPS (little endian)' Target Architecture
+	      Select 'mips 32r6' Target Architecture Variant
+	      Disable 'Use soft-float'
+	      Set BR2_TARGET_OPTIMIZATION to '-mmicromips'
+	    - MIPS32r6 - Little-Endian, Soft-Float, 2008 NaN, o32 ABI, microMIPS
+	      Select 'MIPS (little endian)' Target Architecture
+	      Select 'mips 32r6' Target Architecture Variant
+	      Enable 'Use soft-float'
+	      Set BR2_TARGET_OPTIMIZATION to '-mmicromips'
+	    - MIPS64r6 - Big-Endian, Hard-Float, 2008 NaN, n32 ABI
+	      Select 'MIPS64 (big endian)' Target Architecture
+	      Select 'mips 64r6' Target Architecture Variant
+	      Select 'n32' Target ABI
+	      Disable 'Use soft-float'
+	    - MIPS64r6 - Little-Endian, Hard-Float, 2008 NaN, n32 ABI
+	      Select 'MIPS64 (little endian)' Target Architecture
+	      Select 'mips 64r6' Target Architecture Variant
+	      Select 'n32' Target ABI
+	      Disable 'Use soft-float'
+	    - MIPS64r6 - Big-Endian, Hard-Float, 2008 NaN, n64 ABI
+	      Select 'MIPS64 (big endian)' Target Architecture
+	      Select 'mips 64r6' Target Architecture Variant
+	      Select 'n64' Target ABI
+	      Disable 'Use soft-float'
+	    - MIPS64r6 - Little-Endian, Hard-Float, 2008 NaN, n64 ABI
+	      Select 'MIPS64 (little endian)' Target Architecture
+	      Select 'mips 64r6' Target Architecture Variant
+	      Select 'n64' Target ABI
+	      Disable 'Use soft-float'
diff --git a/toolchain/toolchain-external/toolchain-external-codescape-img-mips/Config.in.options b/toolchain/toolchain-external/toolchain-external-codescape-img-mips/Config.in.options
new file mode 100644
index 0000000..8c534a5
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-codescape-img-mips/Config.in.options
@@ -0,0 +1,6 @@
+if BR2_TOOLCHAIN_EXTERNAL_CODESCAPE_IMG_MIPS
+
+config BR2_PACKAGE_PROVIDES_TOOLCHAIN_EXTERNAL
+	default "toolchain-external-codescape-img-mips"
+
+endif
diff --git a/toolchain/toolchain-external/toolchain-external-codescape-img-mips/toolchain-external-codescape-img-mips.hash b/toolchain/toolchain-external/toolchain-external-codescape-img-mips/toolchain-external-codescape-img-mips.hash
new file mode 100644
index 0000000..e4ae9e1
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-codescape-img-mips/toolchain-external-codescape-img-mips.hash
@@ -0,0 +1,3 @@
+# Codescape toolchains from Imagination Technologies
+# From: http://codescape-mips-sdk.imgtec.com/components/toolchain/2016.05-03/downloads.html
+sha256 e3c1f292ac6a9f12480af431c85a7ed9dfa011a52fd62a50be3363ec6b9bc872  Codescape.GNU.Tools.Package.2016.05-03.for.MIPS.IMG.Linux.CentOS-5.x86.tar.gz
diff --git a/toolchain/toolchain-external/toolchain-external-codescape-img-mips/toolchain-external-codescape-img-mips.mk b/toolchain/toolchain-external/toolchain-external-codescape-img-mips/toolchain-external-codescape-img-mips.mk
new file mode 100644
index 0000000..e8d815b
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-codescape-img-mips/toolchain-external-codescape-img-mips.mk
@@ -0,0 +1,48 @@
+################################################################################
+#
+# toolchain-external-codescape-img-mips
+#
+################################################################################
+
+TOOLCHAIN_EXTERNAL_CODESCAPE_IMG_MIPS_VERSION = 2016.05-03
+TOOLCHAIN_EXTERNAL_CODESCAPE_IMG_MIPS_SITE = http://codescape-mips-sdk.imgtec.com/components/toolchain/$(TOOLCHAIN_EXTERNAL_CODESCAPE_IMG_MIPS_VERSION)
+TOOLCHAIN_EXTERNAL_CODESCAPE_IMG_MIPS_STRIP_COMPONENTS = 2
+
+TOOLCHAIN_EXTERNAL_CODESCAPE_IMG_MIPS_SOURCE = Codescape.GNU.Tools.Package.$(TOOLCHAIN_EXTERNAL_CODESCAPE_IMG_MIPS_VERSION).for.MIPS.IMG.Linux.CentOS-5.x86.tar.gz
+TOOLCHAIN_EXTERNAL_CODESCAPE_IMG_MIPS_PREFIX = mips-img-linux-gnu
+
+# Special fixup for Codescape MIPS toolchains, that have bin-<abi> and
+# sbin-<abi> directories. We create symlinks bin -> bin-<abi> and sbin
+# -> sbin-<abi> so that the rest of Buildroot can find the toolchain
+# tools in the appropriate location.
+ifeq ($(BR2_MIPS_OABI32),y)
+TOOLCHAIN_EXTERNAL_CODESCAPE_IMG_MIPS_BIN_DIR_SUFFIX = o32
+else ifeq ($(BR2_MIPS_NABI32),y)
+TOOLCHAIN_EXTERNAL_CODESCAPE_IMG_MIPS_BIN_DIR_SUFFIX = n32
+else ifeq ($(BR2_MIPS_NABI64),y)
+TOOLCHAIN_EXTERNAL_CODESCAPE_IMG_MIPS_BIN_DIR_SUFFIX = n64
+endif
+
+define TOOLCHAIN_EXTERNAL_CODESCAPE_IMG_MIPS_STAGING_FIXUPS
+	rmdir $(STAGING_DIR)/usr/bin $(STAGING_DIR)/usr/sbin
+	ln -sf bin-$(TOOLCHAIN_EXTERNAL_CODESCAPE_IMG_MIPS_BIN_DIR_SUFFIX) $(STAGING_DIR)/usr/bin
+	ln -sf sbin-$(TOOLCHAIN_EXTERNAL_CODESCAPE_IMG_MIPS_BIN_DIR_SUFFIX) $(STAGING_DIR)/usr/sbin
+endef
+
+# The Codescape toolchain uses a sysroot layout that places them
+# side-by-side instead of nested like multilibs. A symlink is needed
+# much like for the nested sysroots which are handled in
+# copy_toolchain_sysroot but there is not enough information in there
+# to determine whether the sysroot layout was nested or side-by-side.
+# Add the symlink here for now.
+define TOOLCHAIN_EXTERNAL_CODESCAPE_IMG_MIPS_SYMLINK
+	$(Q)ARCH_SYSROOT_DIR="$(call toolchain_find_sysroot,$(TOOLCHAIN_EXTERNAL_CODESCAPE_IMG_MIPS_CC) $(TOOLCHAIN_EXTERNAL_CODESCAPE_IMG_MIPS_CFLAGS))"; \
+	ARCH_SUBDIR=`basename $${ARCH_SYSROOT_DIR}`; \
+	ln -snf . $(STAGING_DIR)/$${ARCH_SUBDIR}
+endef
+
+TOOLCHAIN_EXTERNAL_CODESCAPE_IMG_MIPS_POST_INSTALL_STAGING_HOOKS += \
+	TOOLCHAIN_EXTERNAL_CODESCAPE_IMG_MIPS_STAGING_FIXUPS \
+	TOOLCHAIN_EXTERNAL_CODESCAPE_IMG_MIPS_SYMLINK
+
+$(eval $(toolchain-external-package))
-- 
2.5.5

[Buildroot] [PATCH v2 22/23] toolchain-external-codescape-mti-mips: new package

[Romain Naour]

This commit adds a new package for the Codescape external toolchain for
the MIPS architecture. As of this commit, the code is currently not
used, but it will be used as soon as the external toolchain
infrastructure gets introduced in a future commit.

Signed-off-by: Romain Naour <romain.naour@gmail.com>
Cc: Vicente Olivert Riera <Vincent.Riera@imgtec.com>
---
 .../Config.in                                      | 73 ++++++++++++++++++++++
 .../Config.in.options                              |  6 ++
 .../toolchain-external-codescape-mti-mips.hash     |  3 +
 .../toolchain-external-codescape-mti-mips.mk       | 48 ++++++++++++++
 4 files changed, 130 insertions(+)
 create mode 100644 toolchain/toolchain-external/toolchain-external-codescape-mti-mips/Config.in
 create mode 100644 toolchain/toolchain-external/toolchain-external-codescape-mti-mips/Config.in.options
 create mode 100644 toolchain/toolchain-external/toolchain-external-codescape-mti-mips/toolchain-external-codescape-mti-mips.hash
 create mode 100644 toolchain/toolchain-external/toolchain-external-codescape-mti-mips/toolchain-external-codescape-mti-mips.mk

diff --git a/toolchain/toolchain-external/toolchain-external-codescape-mti-mips/Config.in b/toolchain/toolchain-external/toolchain-external-codescape-mti-mips/Config.in
new file mode 100644
index 0000000..f899467
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-codescape-mti-mips/Config.in
@@ -0,0 +1,73 @@
+config BR2_TOOLCHAIN_EXTERNAL_CODESCAPE_MTI_MIPS
+	bool "Codescape MTI GNU Linux Toolchain 2016.05"
+	depends on BR2_mips || BR2_mipsel || BR2_mips64 || BR2_mips64el
+	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
+	depends on BR2_MIPS_CPU_MIPS32R2 || (BR2_MIPS_CPU_MIPS64R2 && !BR2_MIPS_SOFT_FLOAT) || \
+		BR2_MIPS_CPU_MIPS32R5 || (BR2_MIPS_CPU_MIPS64R5 && !BR2_MIPS_SOFT_FLOAT)
+	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
+	select BR2_INSTALL_LIBSTDCPP
+	select BR2_HOSTARCH_NEEDS_IA32_LIBS
+	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_0
+	select BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
+	select BR2_TOOLCHAIN_HAS_FORTRAN
+	help
+	  Codescape MTI GNU Linux Toolchain 2015.10 for the MIPS
+	  architecture, from Imagination Technologies. It uses gcc
+	  4.9.2, binutils 2.24.90, glibc 2.20, gdb 7.9.1 and kernel
+	  headers 4.0. It has support for the following variants:
+	    - MIPS32r2 - Big-Endian, Hard-Float, Legacy NaN, o32 ABI
+	      Select 'MIPS (big endian)' Target Architecture
+	      Select 'mips 32r2' Target Architecture Variant
+	      Disable 'Use soft-float'
+	    - MIPS32r2 - Big-Endian, Hard-Float, 2008 NaN, o32 ABI
+	      Select 'MIPS (big endian)' Target Architecture
+	      Select 'mips 32r2' Target Architecture Variant
+	      Disable 'Use soft-float'
+	      Set BR2_TARGET_OPTIMIZATION to '-mnan=2008'
+	    - MIPS32r2 - Big-Endian, Soft-Float, Legacy NaN, o32 ABI
+	      Select 'MIPS (big endian)' Target Architecture
+	      Select 'mips 32r2' Target Architecture Variant
+	      Enable 'Use soft-float'
+	    - MIPS32r2 - Little-Endian, Hard-Float, Legacy NaN, o32 ABI
+	      Select 'MIPS (little endian)' Target Architecture
+	      Select 'mips 32r2' Target Architecture Variant
+	      Disable 'Use soft-float'
+	    - MIPS32r2 - Little-Endian, Hard-Float, 2008 NaN, o32 ABI
+	      Select 'MIPS (little endian)' Target Architecture
+	      Select 'mips 32r2' Target Architecture Variant
+	      Disable 'Use soft-float'
+	      Set BR2_TARGET_OPTIMIZATION to '-mnan=2008'
+	    - MIPS32r2 - Little-Endian, Soft-Float, Legacy NaN, o32 ABI
+	      Select 'MIPS (little endian)' Target Architecture
+	      Select 'mips 32r2' Target Architecture Variant
+	      Enable 'Use soft-float'
+	    - MIPS32r2 - Little-Endian, Hard-Float, 2008 NaN, o32 ABI, microMIPS
+	      Select 'MIPS (little endian)' Target Architecture
+	      Select 'mips 32r2' Target Architecture Variant
+	      Enable 'Use soft-float'
+	      Set BR2_TARGET_OPTIMIZATION to '-mmicromips'
+	    - MIPS32r2 - Little-Endian, Soft-Float, Legacy NaN, o32 ABI, microMIPS
+	      Select 'MIPS (little endian)' Target Architecture
+	      Select 'mips 32r2' Target Architecture Variant
+	      Disable 'Use soft-float'
+	      Set BR2_TARGET_OPTIMIZATION to '-mmicromips'
+	    - MIPS64r2 - Big-Endian, Hard-Float, Legacy NaN, n32 ABI
+	      Select 'MIPS64 (big endian)' Target Architecture
+	      Select 'mips 64r2' Target Architecture Variant
+	      Select 'n32' Target ABI
+	      Disable 'Use soft-float'
+	    - MIPS64r2 - Little-Endian, Hard-Float, Legacy NaN, n32 ABI
+	      Select 'MIPS64 (little endian)' Target Architecture
+	      Select 'mips 64r2' Target Architecture Variant
+	      Select 'n32' Target ABI
+	      Disable 'Use soft-float'
+	    - MIPS64r2 - Big-Endian, Hard-Float, Legacy NaN, n64 ABI
+	      Select 'MIPS64 (big endian)' Target Architecture
+	      Select 'mips 64r2' Target Architecture Variant
+	      Select 'n64' Target ABI
+	      Disable 'Use soft-float'
+	    - MIPS64r2 - Little-Endian, Hard-Float, Legacy NaN, n64 ABI
+	      Select 'MIPS64 (little endian)' Target Architecture
+	      Select 'mips 64r2' Target Architecture Variant
+	      Select 'n64' Target ABI
+	      Disable 'Use soft-float'
diff --git a/toolchain/toolchain-external/toolchain-external-codescape-mti-mips/Config.in.options b/toolchain/toolchain-external/toolchain-external-codescape-mti-mips/Config.in.options
new file mode 100644
index 0000000..c6a3c4b
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-codescape-mti-mips/Config.in.options
@@ -0,0 +1,6 @@
+if BR2_TOOLCHAIN_EXTERNAL_CODESCAPE_MTI_MIPS
+
+config BR2_PACKAGE_PROVIDES_TOOLCHAIN_EXTERNAL
+	default "toolchain-external-codescape-mti-mips"
+
+endif
diff --git a/toolchain/toolchain-external/toolchain-external-codescape-mti-mips/toolchain-external-codescape-mti-mips.hash b/toolchain/toolchain-external/toolchain-external-codescape-mti-mips/toolchain-external-codescape-mti-mips.hash
new file mode 100644
index 0000000..0d785f2
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-codescape-mti-mips/toolchain-external-codescape-mti-mips.hash
@@ -0,0 +1,3 @@
+# Codescape toolchains from Imagination Technologies
+# From: http://codescape-mips-sdk.imgtec.com/components/toolchain/2016.05-03/downloads.html
+sha256 10b8ab6d7c492abc19ecabafedc6bc5f12ff88107a3cb76dc452b3a9522d9c56  Codescape.GNU.Tools.Package.2016.05-03.for.MIPS.MTI.Linux.CentOS-5.x86.tar.gz
diff --git a/toolchain/toolchain-external/toolchain-external-codescape-mti-mips/toolchain-external-codescape-mti-mips.mk b/toolchain/toolchain-external/toolchain-external-codescape-mti-mips/toolchain-external-codescape-mti-mips.mk
new file mode 100644
index 0000000..b605881
--- /dev/null
+++ b/toolchain/toolchain-external/toolchain-external-codescape-mti-mips/toolchain-external-codescape-mti-mips.mk
@@ -0,0 +1,48 @@
+################################################################################
+#
+# toolchain-external-codescape-mti-mips
+#
+################################################################################
+
+TOOLCHAIN_EXTERNAL_CODESCAPE_MTI_MIPS_VERSION = 2016.05-03
+TOOLCHAIN_EXTERNAL_CODESCAPE_MTI_MIPS_SITE = http://codescape-mips-sdk.imgtec.com/components/toolchain/$(TOOLCHAIN_EXTERNAL_CODESCAPE_MTI_MIPS_VERSION)
+TOOLCHAIN_EXTERNAL_CODESCAPE_MTI_MIPS_STRIP_COMPONENTS = 2
+
+TOOLCHAIN_EXTERNAL_CODESCAPE_MTI_MIPS_SOURCE = Codescape.GNU.Tools.Package.$(TOOLCHAIN_EXTERNAL_CODESCAPE_MTI_MIPS_VERSION).for.MIPS.MTI.Linux.CentOS-5.x86.tar.gz
+TOOLCHAIN_EXTERNAL_CODESCAPE_MTI_MIPS_PREFIX = mips-mti-linux-gnu
+
+# Special fixup for Codescape MIPS toolchains, that have bin-<abi> and
+# sbin-<abi> directories. We create symlinks bin -> bin-<abi> and sbin
+# -> sbin-<abi> so that the rest of Buildroot can find the toolchain
+# tools in the appropriate location.
+ifeq ($(BR2_MIPS_OABI32),y)
+TOOLCHAIN_EXTERNAL_CODESCAPE_MTI_MIPS_BIN_DIR_SUFFIX = o32
+else ifeq ($(BR2_MIPS_NABI32),y)
+TOOLCHAIN_EXTERNAL_CODESCAPE_MTI_MIPS_BIN_DIR_SUFFIX = n32
+else ifeq ($(BR2_MIPS_NABI64),y)
+TOOLCHAIN_EXTERNAL_CODESCAPE_MTI_MIPS_BIN_DIR_SUFFIX = n64
+endif
+
+define TOOLCHAIN_EXTERNAL_CODESCAPE_MTI_MIPS_STAGING_FIXUPS
+	rmdir $(STAGING_DIR)/usr/bin $(STAGING_DIR)/usr/sbin
+	ln -sf bin-$(TOOLCHAIN_EXTERNAL_CODESCAPE_MTI_MIPS_BIN_DIR_SUFFIX) $(STAGING_DIR)/usr/bin
+	ln -sf sbin-$(TOOLCHAIN_EXTERNAL_CODESCAPE_MTI_MIPS_BIN_DIR_SUFFIX) $(STAGING_DIR)/usr/sbin
+endef
+
+# The Codescape toolchain uses a sysroot layout that places them
+# side-by-side instead of nested like multilibs. A symlink is needed
+# much like for the nested sysroots which are handled in
+# copy_toolchain_sysroot but there is not enough information in there
+# to determine whether the sysroot layout was nested or side-by-side.
+# Add the symlink here for now.
+define TOOLCHAIN_EXTERNAL_CODESCAPE_MTI_MIPS_SYMLINK
+	$(Q)ARCH_SYSROOT_DIR="$(call toolchain_find_sysroot,$(TOOLCHAIN_EXTERNAL_CODESCAPE_MTI_MIPS_CC) $(TOOLCHAIN_EXTERNAL_CODESCAPE_MTI_MIPS_CFLAGS))"; \
+	ARCH_SUBDIR=`basename $${ARCH_SYSROOT_DIR}`; \
+	ln -snf . $(STAGING_DIR)/$${ARCH_SUBDIR}
+endef
+
+TOOLCHAIN_EXTERNAL_CODESCAPE_MTI_MIPS_POST_INSTALL_STAGING_HOOKS += \
+	TOOLCHAIN_EXTERNAL_CODESCAPE_MTI_MIPS_STAGING_FIXUPS \
+	TOOLCHAIN_EXTERNAL_CODESCAPE_MTI_MIPS_SYMLINK
+
+$(eval $(toolchain-external-package))
-- 
2.5.5

[Buildroot] [PATCH v2 23/23] toolchain-external: introduce and use external toolchain infra

[Romain Naour]

This fairly large commit is needed to switch in one atomic change from
the old single package based external toolchain handling, to a
mechanism based on a common external toolchain package infrastructure
and separate packages for each toolchain family. The purpose is to
clearly separate the common external toolchain logic from the
toolchain-specific details and generally make the external toolchain
code hopefully easier to maintain.

To achieve this, this commit:

 - Introduce in pkg-toolchain-external.mk the
     'toolchain-external-package' macro, which is the core of the
     external toolchain package infrastructure. Like any other package
     infrastructure, it defines a number of variables and provides a
     behavior for the configure, build and install steps.

   - Turn the toolchain-external.mk file in a simple virtual package,
     which automatically depends on the selected external
     toolchain. Like any other virtual package, the Kconfig variable
     BR2_PACKAGE_PROVIDES_TOOLCHAIN_EXTERNAL indicates which package is
     providing the currently selected toolchain.

   - Removes all the toolchain-specific definitions from
     toolchain/toolchain-external/Config.in as well as the hash file,
     and instead use the per-toolchain packages in the subdirectories
     toolchain/toolchain-external/*/.

   - Wine: Use $(TOOLCHAIN_EXTERNAL_PREFIX) instead of
     $(BR2_TOOLCHAIN_EXTERNAL_PREFIX) which was removed.

   - Remove the old toolchain-external.hash file. The hash is now
     provided by the toolchain package.

Notes:
   - The hack for setting TOOLCHAIN_EXTERNAL_BIN for the ADI bfin
     toolchain is no longer needed.

Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
Signed-off-by: Romain Naour <romain.naour@gmail.com>
---
v2: - merge all pkg-toolchain-external* into pkg-toolchain-external.mk (Arnout)
    - rebase on master

    fix two big issue:
    1) TOOLCHAIN_EXTERNAL_COMMON_WRAPPER_ARGS were not included in the
       toolchain wrapper.
    2) TOOLCHAIN_EXTERNAL_CFLAGS wasn't included in $(2)_CFLAGS, same
       for TOOLCHAIN_EXTERNAL_LIBS and $(2)_LIBS. So no libraries were
       intalled in target.
---
 package/Makefile.in                                |   2 +-
 package/wine/wine.mk                               |   2 +-
 toolchain/toolchain-external/Config.in             | 982 +--------------------
 ...chain-external.mk => pkg-toolchain-external.mk} | 816 +++++++----------
 .../toolchain-external/toolchain-external.hash     |  67 --
 toolchain/toolchain-external/toolchain-external.mk | 817 +----------------
 6 files changed, 388 insertions(+), 2298 deletions(-)
 copy toolchain/toolchain-external/{toolchain-external.mk => pkg-toolchain-external.mk} (53%)
 delete mode 100644 toolchain/toolchain-external/toolchain-external.hash

diff --git a/package/Makefile.in b/package/Makefile.in
index 5d591e9..bd73219 100644
--- a/package/Makefile.in
+++ b/package/Makefile.in
@@ -184,7 +184,7 @@ endif
 ifeq ($(BR2_TOOLCHAIN_BUILDROOT),y)
 TARGET_CROSS = $(HOST_DIR)/usr/bin/$(GNU_TARGET_NAME)-
 else
-TARGET_CROSS = $(HOST_DIR)/usr/bin/$(call qstrip,$(BR2_TOOLCHAIN_EXTERNAL_PREFIX))-
+TARGET_CROSS = $(HOST_DIR)/usr/bin/$(TOOLCHAIN_EXTERNAL_PREFIX)-
 endif
 
 # Define TARGET_xx variables for all common binutils/gcc
diff --git a/package/wine/wine.mk b/package/wine/wine.mk
index d9a0ecf..47ba90a 100644
--- a/package/wine/wine.mk
+++ b/package/wine/wine.mk
@@ -34,7 +34,7 @@ WINE_CONF_OPTS = \
 # wrapper believes what the real gcc is named, and force the tuple of
 # the external toolchain, not the one we compute in GNU_TARGET_NAME.
 ifeq ($(BR2_TOOLCHAIN_EXTERNAL),y)
-WINE_CONF_OPTS += TARGETFLAGS="-b $(call qstrip,$(BR2_TOOLCHAIN_EXTERNAL_PREFIX))"
+WINE_CONF_OPTS += TARGETFLAGS="-b $(TOOLCHAIN_EXTERNAL_PREFIX)"
 endif
 
 ifeq ($(BR2_PACKAGE_ALSA_LIB)$(BR2_PACKAGE_ALSA_LIB_SEQ)$(BR2_PACKAGE_ALSA_LIB_RAWMIDI),yyy)
diff --git a/toolchain/toolchain-external/Config.in b/toolchain/toolchain-external/Config.in
index 5324599..d52ffb9 100644
--- a/toolchain/toolchain-external/Config.in
+++ b/toolchain/toolchain-external/Config.in
@@ -1,3 +1,6 @@
+config BR2_PACKAGE_PROVIDES_TOOLCHAIN_EXTERNAL
+	string
+
 if BR2_TOOLCHAIN_EXTERNAL
 
 comment "Toolchain External Options"
@@ -8,574 +11,28 @@ choice
 comment "glibc toolchains only available with shared lib support"
 	depends on BR2_STATIC_LIBS
 
-comment "Linaro toolchains available for Cortex-A + EABIhf"
-	depends on BR2_arm || BR2_armeb
-	depends on !BR2_ARM_CPU_ARMV7A || !BR2_ARM_EABIHF
-	depends on !BR2_STATIC_LIBS
-
-config BR2_TOOLCHAIN_EXTERNAL_LINARO_ARM
-	bool "Linaro ARM 2016.05"
-	depends on BR2_arm
-	depends on BR2_ARM_CPU_ARMV7A
-	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
-	depends on BR2_ARM_EABIHF
-	depends on !BR2_STATIC_LIBS
-	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
-	select BR2_TOOLCHAIN_HAS_SSP
-	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
-	select BR2_INSTALL_LIBSTDCPP
-	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_0
-	select BR2_TOOLCHAIN_GCC_AT_LEAST_5
-	select BR2_TOOLCHAIN_HAS_FORTRAN
-	help
-	  Linaro toolchain for the ARM architecture. It uses Linaro
-	  GCC 2016.05 (based on gcc 5.3.1), Linaro GDB 2016.05 (based on
-	  GDB 7.11.1), glibc 2.21, Binutils 2016.05 (based on 2.25). It
-	  generates code that runs on all Cortex-A profile devices,
-	  but tuned for the Cortex-A9. The code generated is Thumb 2,
-	  with the hard floating point calling convention, and uses
-	  the VFPv3-D16 FPU instructions.
-
-config BR2_TOOLCHAIN_EXTERNAL_LINARO_ARMEB
-	bool "Linaro armeb 2016.05"
-	depends on BR2_armeb
-	depends on BR2_ARM_CPU_ARMV7A
-	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
-	depends on BR2_ARM_EABIHF
-	depends on !BR2_STATIC_LIBS
-	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
-	select BR2_TOOLCHAIN_HAS_SSP
-	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
-	select BR2_INSTALL_LIBSTDCPP
-	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_0
-	select BR2_TOOLCHAIN_GCC_AT_LEAST_5
-	help
-	  Linaro toolchain for the ARM big endian architecture. It
-	  uses Linaro GCC 2016.05 (based on gcc 5.3.1), Linaro GDB
-	  2016.05 (based on GDB 7.11.1), glibc 2.21, Binutils 2016.05
-	  (based on 2.25). It generates code that runs on all Cortex-A
-	  profile devices, but tuned for the Cortex-A9. The code
-	  generated is Thumb 2, with the hard floating point calling
-	  convention, and uses the VFPv3-D16 FPU instructions.
-
-config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM
-	bool "Sourcery CodeBench ARM 2014.05"
-	depends on BR2_arm
-	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
-	depends on BR2_ARM_EABI
-	depends on !BR2_STATIC_LIBS
-	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
-	select BR2_TOOLCHAIN_HAS_SSP
-	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
-	select BR2_INSTALL_LIBSTDCPP
-	select BR2_HOSTARCH_NEEDS_IA32_LIBS
-	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_13
-	select BR2_TOOLCHAIN_GCC_AT_LEAST_4_8
-	help
-	  Sourcery CodeBench toolchain for the ARM architecture, from
-	  Mentor Graphics. It uses gcc 4.8.3, binutils 2.24.51, glibc
-	  2.18 and gdb 7.7.50, kernel headers 3.13. It has support
-	  for the following variants:
-	    - ARMv5TE, little endian, soft-float, glibc
-	      Select ARM926T, ARM10T, XScale or another ARMv5 core
-	      Select BR2_SOFT_FLOAT
-	    - ARMv4T, little endian, soft-float, glibc
-	      Select ARM720T, ARM920T, ARM922T or another ARMv4 core
-	      Select BR2_SOFT_FLOAT
-	    - ARMv7-A, Thumb 2, little endian, soft-float, glibc
-	      Select Cortex-A8, Cortex-A9 or another ARMv7-A core
-	      Select BR2_SOFT_FLOAT
-	      Set BR2_TARGET_OPTIMIZATION to -mthumb
-
-comment "Sourcery CodeBench toolchains available for the EABI ABI"
-	depends on BR2_arm
-	depends on !BR2_ARM_EABI
-	depends on !BR2_STATIC_LIBS
-
-config BR2_TOOLCHAIN_EXTERNAL_ARAGO_ARMV7A
-	bool "Arago ARMv7 2011.09"
-	depends on BR2_arm
-	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
-	depends on BR2_ARM_CPU_ARMV7A
-	depends on BR2_ARM_EABI
-	depends on BR2_ARM_CPU_HAS_VFPV3
-	depends on !BR2_STATIC_LIBS
-	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
-	select BR2_TOOLCHAIN_HAS_SSP
-	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
-	select BR2_INSTALL_LIBSTDCPP
-	select BR2_HOSTARCH_NEEDS_IA32_LIBS
-	select BR2_TOOLCHAIN_GCC_AT_LEAST_4_5
-	# kernel headers: 2.6.31
-	help
-	  Texas Instruments Arago 2011.09 toolchain, with gcc 4.5.3,
-	  binutils 2.20.1, glibc 2.12, gdb 7.2.
-
-	  This toolchain uses -mfloat-abi=softfp (i.e can use FPU
-	  instructions, but passes floating point function arguments
-	  in integer registers), and requires a VFPv3 floating point
-	  unit to work properly. This unit is available on most
-	  Cortex-A ARM processors, but not all.
-
-config BR2_TOOLCHAIN_EXTERNAL_ARAGO_ARMV5TE
-	bool "Arago ARMv5 2011.09"
-	depends on BR2_arm
-	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
-	depends on !BR2_ARM_CPU_ARMV4
-	depends on BR2_ARM_EABI
-	depends on !BR2_STATIC_LIBS
-	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
-	select BR2_TOOLCHAIN_HAS_SSP
-	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
-	select BR2_INSTALL_LIBSTDCPP
-	select BR2_HOSTARCH_NEEDS_IA32_LIBS
-	select BR2_TOOLCHAIN_GCC_AT_LEAST_4_5
-	# kernel headers: 2.6.31
-	help
-	  Texas Instruments Arago ARMv5 2011.09 toolchain, with gcc
-	  4.5.3, binutils 2.20.1, glibc 2.12, gdb 7.2.
-
-	  This toolchain uses software-floating point.
-
-config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS
-	bool "Sourcery CodeBench MIPS 2016.05"
-	depends on BR2_mips || BR2_mipsel || BR2_mips64 || BR2_mips64el
-	depends on BR2_MIPS_CPU_MIPS32R2 || BR2_MIPS_CPU_MIPS64R2
-	# Unsupported MIPS cores
-	depends on !BR2_mips_interaptiv
-	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
-	depends on !BR2_MIPS_NABI32
-	depends on !BR2_STATIC_LIBS
-	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
-	select BR2_TOOLCHAIN_HAS_SSP
-	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
-	select BR2_INSTALL_LIBSTDCPP
-	select BR2_HOSTARCH_NEEDS_IA32_LIBS
-	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_4
-	select BR2_TOOLCHAIN_GCC_AT_LEAST_5
-	help
-	  Sourcery CodeBench toolchain for the MIPS architecture, from
-	  Mentor Graphics. It uses gcc 5.3, binutils 2.25.51, glibc
-	  2.23, uClibc 0.9.30 and gdb 7.10.50, kernel headers 4.4.1. It
-	  has support for the following variants:
-	    - MIPS32r2 - Big-Endian, 2008 NaN, O32
-	      Select MIPS (big endian) core
-	      Disable BR2_SOFT_FLOAT
-	      Set BR2_TARGET_OPTIMIZATION to -mnan=2008
-	    - MIPS32r2 - Big-Endian, O32
-	      Select MIPS (big endian) core
-	      Disable BR2_SOFT_FLOAT
-	    - MIPS32r2 - Big-Endian, O32, MIPS16
-	      Select MIPS (big endian) core
-	      Disable BR2_SOFT_FLOAT
-	      Set BR2_TARGET_OPTIMIZATION to -mips16
-	    - MIPS32r2 - Big-Endian, Soft-Float, O32
-	      Select MIPS (big endian) core
-	      Select BR2_SOFT_FLOAT
-	    - MIPS32r2 - Big-Endian, Soft-Float, O32, MIPS16
-	      Select MIPS (big endian) core
-	      Select BR2_SOFT_FLOAT
-	      Set BR2_TARGET_OPTIMIZATION to -mips16
-	    - MIPS32r2 - Little-Endian, 2008 NaN, O32
-	      Select MIPS (little endian) core
-	      Disable BR2_SOFT_FLOAT
-	      Set BR2_TARGET_OPTIMIZATION to -mnan=2008
-	    - MIPS32r2 - Little-Endian, O32
-	      Select MIPS (little endian) core
-	      Disable BR2_SOFT_FLOAT
-	    - MIPS32r2 - Little-Endian, O32, MIPS16
-	      Select MIPS (little endian) core
-	      Disable BR2_SOFT_FLOAT
-	      Set BR2_TARGET_OPTIMIZATION to -mips16
-	    - MIPS32r2 - Little-Endian, Soft-Float, O32
-	      Select MIPS (little endian) core
-	      Select BR2_SOFT_FLOAT
-	    - MIPS32r2 - Little-Endian, Soft-Float, O32, MIPS16
-	      Select MIPS (little endian) core
-	      Select BR2_SOFT_FLOAT
-	      Set BR2_TARGET_OPTIMIZATION to -mips16
-	    - MIPS32r2 - Little-Endian, Soft-Float, O32, microMIPS
-	      Select MIPS (little endian) core
-	      Select BR2_SOFT_FLOAT
-	      Set BR2_TARGET_OPTIMIZATION to -mmicromips
-	    - MIPS32r2 - uClibc, Big-Endian, 2008 NaN, O32
-	      Not usable in Buildroot yet.
-	    - MIPS32r2 - uClibc, Big-Endian, O32
-	      Not usable in Buildroot yet.
-	    - MIPS32r2 - uClibc, Big-Endian, Soft-Float, O32
-	      Not usable in Buildroot yet.
-	    - MIPS32r2 - uClibc, Little-Endian, 2008 NaN, O32
-	      Not usable in Buildroot yet.
-	    - MIPS32r2 - uClibc, Little-Endian, O32
-	      Not usable in Buildroot yet.
-	    - MIPS32r2 - uClibc, Little-Endian, Soft-Float, O32
-	      Not usable in Buildroot yet.
-	    - MIPS64r2 - Big-Endian, N64
-	      Select MIPS64 (big endian) core
-	      Select the n64 ABI
-	      Disable BR2_SOFT_FLOAT
-	    - MIPS64r2 - Big-Endian, Soft-Float, N64
-	      Select MIPS64 (big endian) core
-	      Select the n64 ABI
-	      Select BR2_SOFT_FLOAT
-	    - MIPS64r2 - Little-Endian, N64
-	      Select MIPS64 (little endian) core
-	      Select the n64 ABI
-	      Disable BR2_SOFT_FLOAT
-	    - MIPS64r2 - Little-Endian, Soft-Float, N64
-	      Select MIPS64 (little endian) core
-	      Select the n64 ABI
-	      Select BR2_SOFT_FLOAT
-
-comment "Sourcery CodeBench toolchains are only available for MIPS/MIPS64 o32 and n64"
-	depends on BR2_MIPS_NABI32
-	depends on !BR2_STATIC_LIBS
-
-config BR2_TOOLCHAIN_EXTERNAL_CODESCAPE_IMG_MIPS
-	bool "Codescape IMG GNU Linux Toolchain 2016.05"
-	depends on BR2_mips || BR2_mipsel || BR2_mips64 || BR2_mips64el
-	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
-	depends on BR2_MIPS_CPU_MIPS32R6 || (BR2_MIPS_CPU_MIPS64R6 && !BR2_MIPS_SOFT_FLOAT)
-	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
-	select BR2_INSTALL_LIBSTDCPP
-	select BR2_HOSTARCH_NEEDS_IA32_LIBS
-	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_0
-	select BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
-	select BR2_TOOLCHAIN_HAS_FORTRAN
-	help
-	  Codescape IMG GNU Linux Toolchain 2015.10 for the MIPS
-	  architecture, from Imagination Technologies. It uses gcc
-	  4.9.2, binutils 2.24.90, glibc 2.20, gdb 7.9.1 and kernel
-	  headers 4.0. It has support for the following variants:
-	    - MIPS32r6 - Big-Endian, Hard-Float, 2008 NaN, o32 ABI
-	      Select 'MIPS (big endian)' Target Architecture
-	      Select 'mips 32r6' Target Architecture Variant
-	      Disable 'Use soft-float'
-	    - MIPS32r6 - Big-Endian, Soft-Float, 2008 NaN, o32 ABI
-	      Select 'MIPS (big endian)' Target Architecture
-	      Select 'mips 32r6' Target Architecture Variant
-	      Enable 'Use soft-float'
-	    - MIPS32r6 - Little-Endian, Hard-Float, 2008 NaN, o32 ABI
-	      Select 'MIPS (little endian)' Target Architecture
-	      Select 'mips 32r6' Target Architecture Variant
-	      Disable 'Use soft-float'
-	    - MIPS32r6 - Little-Endian, Soft-Float, 2008 NaN, o32 ABI
-	      Select 'MIPS (little endian)' Target Architecture
-	      Select 'mips 32r6' Target Architecture Variant
-	      Enable 'Use soft-float'
-	    - MIPS32r6 - Little-Endian, Hard-Float, 2008 NaN, o32 ABI, microMIPS
-	      Select 'MIPS (little endian)' Target Architecture
-	      Select 'mips 32r6' Target Architecture Variant
-	      Disable 'Use soft-float'
-	      Set BR2_TARGET_OPTIMIZATION to '-mmicromips'
-	    - MIPS32r6 - Little-Endian, Soft-Float, 2008 NaN, o32 ABI, microMIPS
-	      Select 'MIPS (little endian)' Target Architecture
-	      Select 'mips 32r6' Target Architecture Variant
-	      Enable 'Use soft-float'
-	      Set BR2_TARGET_OPTIMIZATION to '-mmicromips'
-	    - MIPS64r6 - Big-Endian, Hard-Float, 2008 NaN, n32 ABI
-	      Select 'MIPS64 (big endian)' Target Architecture
-	      Select 'mips 64r6' Target Architecture Variant
-	      Select 'n32' Target ABI
-	      Disable 'Use soft-float'
-	    - MIPS64r6 - Little-Endian, Hard-Float, 2008 NaN, n32 ABI
-	      Select 'MIPS64 (little endian)' Target Architecture
-	      Select 'mips 64r6' Target Architecture Variant
-	      Select 'n32' Target ABI
-	      Disable 'Use soft-float'
-	    - MIPS64r6 - Big-Endian, Hard-Float, 2008 NaN, n64 ABI
-	      Select 'MIPS64 (big endian)' Target Architecture
-	      Select 'mips 64r6' Target Architecture Variant
-	      Select 'n64' Target ABI
-	      Disable 'Use soft-float'
-	    - MIPS64r6 - Little-Endian, Hard-Float, 2008 NaN, n64 ABI
-	      Select 'MIPS64 (little endian)' Target Architecture
-	      Select 'mips 64r6' Target Architecture Variant
-	      Select 'n64' Target ABI
-	      Disable 'Use soft-float'
-
-config BR2_TOOLCHAIN_EXTERNAL_CODESCAPE_MTI_MIPS
-	bool "Codescape MTI GNU Linux Toolchain 2016.05"
-	depends on BR2_mips || BR2_mipsel || BR2_mips64 || BR2_mips64el
-	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
-	depends on BR2_MIPS_CPU_MIPS32R2 || (BR2_MIPS_CPU_MIPS64R2 && !BR2_MIPS_SOFT_FLOAT) || \
-		BR2_MIPS_CPU_MIPS32R5 || (BR2_MIPS_CPU_MIPS64R5 && !BR2_MIPS_SOFT_FLOAT)
-	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
-	select BR2_INSTALL_LIBSTDCPP
-	select BR2_HOSTARCH_NEEDS_IA32_LIBS
-	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_0
-	select BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
-	select BR2_TOOLCHAIN_HAS_FORTRAN
-	help
-	  Codescape MTI GNU Linux Toolchain 2015.10 for the MIPS
-	  architecture, from Imagination Technologies. It uses gcc
-	  4.9.2, binutils 2.24.90, glibc 2.20, gdb 7.9.1 and kernel
-	  headers 4.0. It has support for the following variants:
-	    - MIPS32r2 - Big-Endian, Hard-Float, Legacy NaN, o32 ABI
-	      Select 'MIPS (big endian)' Target Architecture
-	      Select 'mips 32r2' Target Architecture Variant
-	      Disable 'Use soft-float'
-	    - MIPS32r2 - Big-Endian, Hard-Float, 2008 NaN, o32 ABI
-	      Select 'MIPS (big endian)' Target Architecture
-	      Select 'mips 32r2' Target Architecture Variant
-	      Disable 'Use soft-float'
-	      Set BR2_TARGET_OPTIMIZATION to '-mnan=2008'
-	    - MIPS32r2 - Big-Endian, Soft-Float, Legacy NaN, o32 ABI
-	      Select 'MIPS (big endian)' Target Architecture
-	      Select 'mips 32r2' Target Architecture Variant
-	      Enable 'Use soft-float'
-	    - MIPS32r2 - Little-Endian, Hard-Float, Legacy NaN, o32 ABI
-	      Select 'MIPS (little endian)' Target Architecture
-	      Select 'mips 32r2' Target Architecture Variant
-	      Disable 'Use soft-float'
-	    - MIPS32r2 - Little-Endian, Hard-Float, 2008 NaN, o32 ABI
-	      Select 'MIPS (little endian)' Target Architecture
-	      Select 'mips 32r2' Target Architecture Variant
-	      Disable 'Use soft-float'
-	      Set BR2_TARGET_OPTIMIZATION to '-mnan=2008'
-	    - MIPS32r2 - Little-Endian, Soft-Float, Legacy NaN, o32 ABI
-	      Select 'MIPS (little endian)' Target Architecture
-	      Select 'mips 32r2' Target Architecture Variant
-	      Enable 'Use soft-float'
-	    - MIPS32r2 - Little-Endian, Hard-Float, 2008 NaN, o32 ABI, microMIPS
-	      Select 'MIPS (little endian)' Target Architecture
-	      Select 'mips 32r2' Target Architecture Variant
-	      Enable 'Use soft-float'
-	      Set BR2_TARGET_OPTIMIZATION to '-mmicromips'
-	    - MIPS32r2 - Little-Endian, Soft-Float, Legacy NaN, o32 ABI, microMIPS
-	      Select 'MIPS (little endian)' Target Architecture
-	      Select 'mips 32r2' Target Architecture Variant
-	      Disable 'Use soft-float'
-	      Set BR2_TARGET_OPTIMIZATION to '-mmicromips'
-	    - MIPS64r2 - Big-Endian, Hard-Float, Legacy NaN, n32 ABI
-	      Select 'MIPS64 (big endian)' Target Architecture
-	      Select 'mips 64r2' Target Architecture Variant
-	      Select 'n32' Target ABI
-	      Disable 'Use soft-float'
-	    - MIPS64r2 - Little-Endian, Hard-Float, Legacy NaN, n32 ABI
-	      Select 'MIPS64 (little endian)' Target Architecture
-	      Select 'mips 64r2' Target Architecture Variant
-	      Select 'n32' Target ABI
-	      Disable 'Use soft-float'
-	    - MIPS64r2 - Big-Endian, Hard-Float, Legacy NaN, n64 ABI
-	      Select 'MIPS64 (big endian)' Target Architecture
-	      Select 'mips 64r2' Target Architecture Variant
-	      Select 'n64' Target ABI
-	      Disable 'Use soft-float'
-	    - MIPS64r2 - Little-Endian, Hard-Float, Legacy NaN, n64 ABI
-	      Select 'MIPS64 (little endian)' Target Architecture
-	      Select 'mips 64r2' Target Architecture Variant
-	      Select 'n64' Target ABI
-	      Disable 'Use soft-float'
-
-config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_NIOSII
-	bool "Sourcery CodeBench Nios-II 2016.05"
-	depends on BR2_nios2
-	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
-	depends on !BR2_STATIC_LIBS
-	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
-	select BR2_TOOLCHAIN_HAS_SSP
-	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
-	select BR2_INSTALL_LIBSTDCPP
-	select BR2_HOSTARCH_NEEDS_IA32_LIBS
-	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_4
-	select BR2_TOOLCHAIN_GCC_AT_LEAST_5
-	select BR2_TOOLCHAIN_HAS_BINUTILS_BUG_19405 # based-on binutils-2.25.1
-	help
-	  Sourcery CodeBench toolchain for the Nios-II architecture,
-	  from Mentor Graphics. It uses gcc 5.3, binutils 2.25.51,
-	  glibc 2.23, gdb 7.10.50 and kernel headers 4.4.
-
-config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_SH
-	bool "Sourcery CodeBench SH 2012.09"
-	depends on BR2_sh4a || BR2_sh4aeb
-	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
-	depends on !BR2_STATIC_LIBS
-	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
-	select BR2_TOOLCHAIN_HAS_SSP
-	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
-	select BR2_INSTALL_LIBSTDCPP
-	select BR2_HOSTARCH_NEEDS_IA32_LIBS
-	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_5
-	select BR2_TOOLCHAIN_GCC_AT_LEAST_4_7
-	help
-	  Sourcery CodeBench toolchain for the SuperH architecture,
-	  from Mentor Graphics. It uses gcc 4.7.2, binutils 2.23.51,
-	  glibc 2.16, uClibc 0.9.30, gdb 7.4.50 and kernel headers
-	  3.5.4. It has support for the following variants:
-	    - SH4A, glibc, little endian
-	      Default.
-	    - SH4A, glibc, big endian
-	      Add -mb to BR2_TARGET_OPTIMIZATION
-	    - SH4A, uClibc, little endian
-	      Not usable in Buildroot yet.
-	    - SH4A, uClibc, big endian
-	      Not usable in Buildroot yet.
-
-config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_AMD64
-	bool "Sourcery CodeBench AMD64 2015.11"
-	depends on BR2_x86_64
-	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
-	depends on !BR2_STATIC_LIBS
-	depends on BR2_x86_jaguar || BR2_x86_steamroller
-	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
-	select BR2_TOOLCHAIN_HAS_SSP
-	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
-	select BR2_INSTALL_LIBSTDCPP
-	select BR2_HOSTARCH_NEEDS_IA32_LIBS
-	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_2
-	select BR2_TOOLCHAIN_GCC_AT_LEAST_5
-	help
-	  Sourcery CodeBench toolchain for the amd64 (x86_64)
-	  architectures, from Mentor Graphics. It uses gcc 5.2,
-	  binutils 2.25.51, glibc 2.22, gdb 7.10.50 and kernel headers
-	  4.2. It has support for the following variants:
-	    - AMD Puma/Jaguar (family 16h), glibc
-	    Default for x86_64, nothing special to do.
-	    - AMD Steamroller (family 15h), glibc
-	    Select a steamroller core.
-	  No other architecture variants are supported since glibc
-	  is optimized for one of these two baselines.
-
-config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_X86
-	bool "Sourcery CodeBench x86/x86_64 2012.09"
-	depends on BR2_i386 || BR2_x86_64
-	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
-	depends on !BR2_STATIC_LIBS
-	depends on !BR2_x86_jaguar
-	depends on !BR2_x86_steamroller
-	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
-	select BR2_TOOLCHAIN_HAS_SSP
-	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
-	select BR2_INSTALL_LIBSTDCPP
-	select BR2_HOSTARCH_NEEDS_IA32_LIBS
-	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_5
-	select BR2_TOOLCHAIN_GCC_AT_LEAST_4_7
-	help
-	  Sourcery CodeBench toolchain for the x86/x86_64
-	  architectures, from Mentor Graphics. It uses gcc 4.7.2,
-	  binutils 2.23.51, glibc 2.16, gdb 7.4.50 and kernel headers
-	  3.5.4. It has support for the following variants:
-	    - Intel Pentium 4, glibc, 32 bits
-	      Default for x86, nothing special to do.
-	    - Intel Atom, glibc, 32 bits
-	      Select an Atom core
-	    - Intel Xeon, glibc, 64 bits
-	      Default for x86_64, nothing special to do.
-	    - Intel Core 2, glibc, 64 bits
-	      Select a Core 2 core
-	  Other architecture variants (beyond Pentium-4/Xeon) are
-	  supported as well, but glibc is not optimised for it.
-
-config BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX
-	bool "Blackfin.uclinux.org 2014R1"
-	depends on BR2_bfin
-	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
-	select BR2_TOOLCHAIN_EXTERNAL_UCLIBC
-	select BR2_INSTALL_LIBSTDCPP
-	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
-	select BR2_USE_WCHAR
-	select BR2_TOOLCHAIN_HAS_THREADS
-	select BR2_TOOLCHAIN_HAS_THREADS_DEBUG
-	select BR2_HOSTARCH_NEEDS_IA32_LIBS
-	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_10
-	select BR2_TOOLCHAIN_GCC_AT_LEAST_4_3
-	select BR2_TOOLCHAIN_HAS_FORTRAN
-	help
-	  Toolchain for the Blackfin architecture, from
-	  http://blackfin.uclinux.org.
-
-config BR2_TOOLCHAIN_EXTERNAL_LINARO_AARCH64
-	bool "Linaro AArch64 2016.05"
-	depends on BR2_aarch64
-	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
-	depends on !BR2_STATIC_LIBS
-	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
-	select BR2_TOOLCHAIN_HAS_SSP
-	select BR2_INSTALL_LIBSTDCPP
-	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
-	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_0
-	select BR2_TOOLCHAIN_GCC_AT_LEAST_5
-	select BR2_TOOLCHAIN_HAS_FORTRAN
-	help
-	  Toolchain for the AArch64 architecture, from
-	  http://www.linaro.org/engineering/armv8/
-
-config BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_AARCH64
-	bool "CodeSourcery AArch64 2014.11"
-	depends on BR2_aarch64
-	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
-	depends on !BR2_STATIC_LIBS
-	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
-	select BR2_TOOLCHAIN_HAS_SSP
-	select BR2_INSTALL_LIBSTDCPP
-	select BR2_HOSTARCH_NEEDS_IA32_LIBS
-	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
-	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_16
-	select BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
-	help
-	  Sourcery CodeBench toolchain for the AArch64 architecture,
-	  from Mentor Graphics. It uses gcc 4.9.1, binutils
-	  2.24.51.20140217, glibc 2.20, gdb 7.7.50 and kernel headers
-	  3.16.2.
-
-config BR2_TOOLCHAIN_EXTERNAL_MUSL_CROSS
-	bool "Musl 1.1.12 toolchain"
-	depends on (BR2_arm && BR2_ARM_EABI && BR2_USE_MMU) || \
-		(BR2_arm && BR2_ARM_EABIHF && !BR2_ARM_CPU_ARMV4 && BR2_USE_MMU) || \
-		(BR2_armeb && BR2_ARM_EABI && !BR2_ARM_CPU_ARMV7A && BR2_USE_MMU) || \
-		BR2_i386 || (BR2_mips && !BR2_SOFT_FLOAT) || \
-		BR2_mipsel || (BR2_powerpc && BR2_powerpc_CLASSIC) || \
-		BR2_sh4 || BR2_sh4eb || \
-		BR2_x86_64
-	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
-	# Unsupported MIPS cores
-	depends on !BR2_mips_interaptiv && !BR2_mips_m5100 && !BR2_mips_m5101
-	# Unsupported for MIPS R6
-	depends on !BR2_MIPS_CPU_MIPS32R6 && !BR2_MIPS_CPU_MIPS64R6
-	select BR2_TOOLCHAIN_EXTERNAL_MUSL
-	select BR2_TOOLCHAIN_HAS_SSP
-	select BR2_INSTALL_LIBSTDCPP
-	select BR2_HOSTARCH_NEEDS_IA32_LIBS
-	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_12
-	select BR2_TOOLCHAIN_GCC_AT_LEAST_5
-	help
-	  Toolchain based on the Musl C library, provided by the
-	  musl-cross project. It uses gcc 5.3, binutils 2.25.1 and
-	  musl 1.1.12. It does not have a cross debugger included.
-
-	  The ARM soft-float toolchain is built for ARMv4t, while the
-	  ARM hard-float toolchain is built for ARMv5t.
-	  The x86 toolchain is built for i486.
-
-	  http://musl.codu.org/
-
-config BR2_TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC
-	bool "Synopsys ARC 2014.12 toolchain"
-	depends on BR2_arc
-	depends on BR2_HOSTARCH = "x86_64"
-	# does not provide IPv6, and lacks many uClibc features
-	# expected by Buildroot. The next Synopsys toolchain version
-	# should fix those problems.
-	depends on BROKEN
-	select BR2_TOOLCHAIN_EXTERNAL_UCLIBC
-	select BR2_INSTALL_LIBSTDCPP
-	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
-	select BR2_ENABLE_LOCALE
-	select BR2_USE_WCHAR
-	select BR2_TOOLCHAIN_HAS_THREADS
-	select BR2_TOOLCHAIN_HAS_THREADS_DEBUG
-	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_13
-	select BR2_TOOLCHAIN_GCC_AT_LEAST_4_8
-	help
-	  Toolchain for the ARC cores, from
-	  https://github.com/foss-for-synopsys-dwc-arc-processors/toolchain/releases
-
-config BR2_TOOLCHAIN_EXTERNAL_CUSTOM
-	bool "Custom toolchain"
-	help
-	  Use this option to use a custom toolchain pre-installed on
-	  your system.
+source "toolchain/toolchain-external/toolchain-external-blackfin-uclinux/Config.in"
+source "toolchain/toolchain-external/toolchain-external-arago-armv5te/Config.in"
+source "toolchain/toolchain-external/toolchain-external-arago-armv7a/Config.in"
+source "toolchain/toolchain-external/toolchain-external-codescape-mti-mips/Config.in"
+source "toolchain/toolchain-external/toolchain-external-codescape-img-mips/Config.in"
+source "toolchain/toolchain-external/toolchain-external-linaro-aarch64/Config.in"
+source "toolchain/toolchain-external/toolchain-external-linaro-arm/Config.in"
+source "toolchain/toolchain-external/toolchain-external-linaro-armeb/Config.in"
+source "toolchain/toolchain-external/toolchain-external-musl-cross/Config.in"
+source "toolchain/toolchain-external/toolchain-external-codesourcery-aarch64/Config.in"
+source "toolchain/toolchain-external/toolchain-external-codesourcery-amd64/Config.in"
+source "toolchain/toolchain-external/toolchain-external-codesourcery-arm/Config.in"
+source "toolchain/toolchain-external/toolchain-external-codesourcery-mips/Config.in"
+source "toolchain/toolchain-external/toolchain-external-codesourcery-niosII/Config.in"
+source "toolchain/toolchain-external/toolchain-external-codesourcery-sh/Config.in"
+source "toolchain/toolchain-external/toolchain-external-codesourcery-x86/Config.in"
+source "toolchain/toolchain-external/toolchain-external-synopsys-arc/Config.in"
+
+# Kept last, so it remains the non-default choice, unless there isn't
+# any available toolchain profile for the currently selected
+# architecture.
+source "toolchain/toolchain-external/toolchain-external-custom/Config.in"
 
 endchoice
 
@@ -608,50 +65,25 @@ config BR2_TOOLCHAIN_EXTERNAL_PATH
 	help
 	  Path to where the external toolchain is installed.
 
-config BR2_TOOLCHAIN_EXTERNAL_URL
-	string "Toolchain URL"
-	depends on BR2_TOOLCHAIN_EXTERNAL_CUSTOM && BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD
-	help
-	  URL of the custom toolchain tarball to download and install.
-
-config BR2_TOOLCHAIN_EXTERNAL_CUSTOM_PREFIX
-	string "Toolchain prefix"
-	depends on BR2_TOOLCHAIN_EXTERNAL_CUSTOM
-	default "$(ARCH)-linux"
-
-config BR2_TOOLCHAIN_EXTERNAL_PREFIX
-	string
-	default "arc-linux"		 if BR2_TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC && BR2_arcle
-	default "arceb-linux"		 if BR2_TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC && BR2_arceb
-	default "arm-linux-gnueabihf"	 if BR2_TOOLCHAIN_EXTERNAL_LINARO_ARM
-	default "armeb-linux-gnueabihf"	 if BR2_TOOLCHAIN_EXTERNAL_LINARO_ARMEB
-	default "arm-none-linux-gnueabi" if BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM
-	default "arm-arago-linux-gnueabi" if BR2_TOOLCHAIN_EXTERNAL_ARAGO_ARMV7A
-	default "arm-arago-linux-gnueabi" if BR2_TOOLCHAIN_EXTERNAL_ARAGO_ARMV5TE
-	default "aarch64-linux-gnu"      if BR2_TOOLCHAIN_EXTERNAL_LINARO_AARCH64
-	default "aarch64-amd-linux-gnu"  if BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_AARCH64
-	default "mips-linux-gnu"         if BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS
-	default "nios2-linux-gnu"        if BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_NIOSII
-	default "sh-linux-gnu"           if BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_SH
-	default "i686-pc-linux-gnu"	 if BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_X86
-	default "x86_64-amd-linux-gnu"   if BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_AMD64
-	default "bfin-uclinux"		 if BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX && BR2_BINFMT_FLAT
-	default "bfin-linux-uclibc"	 if BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX && BR2_BINFMT_FDPIC
-	default "arm-linux-musleabi"	 if BR2_TOOLCHAIN_EXTERNAL_MUSL_CROSS && BR2_arm && BR2_ARM_EABI
-	default "arm-linux-musleabihf"	 if BR2_TOOLCHAIN_EXTERNAL_MUSL_CROSS && BR2_arm && BR2_ARM_EABIHF
-	default "mips-img-linux-gnu"     if BR2_TOOLCHAIN_EXTERNAL_CODESCAPE_IMG_MIPS
-	default "mips-mti-linux-gnu"     if BR2_TOOLCHAIN_EXTERNAL_CODESCAPE_MTI_MIPS
-	default "armeb-linux-musleabi"	 if BR2_TOOLCHAIN_EXTERNAL_MUSL_CROSS && BR2_armeb
-	default "i486-linux-musl"	 if BR2_TOOLCHAIN_EXTERNAL_MUSL_CROSS && BR2_i386
-	default "mips-linux-musl"	 if BR2_TOOLCHAIN_EXTERNAL_MUSL_CROSS && (BR2_mips && !BR2_SOFT_FLOAT)
-	default "mipsel-linux-musl"	 if BR2_TOOLCHAIN_EXTERNAL_MUSL_CROSS && (BR2_mipsel && !BR2_SOFT_FLOAT)
-	default "mipsel-sf-linux-musl"	 if BR2_TOOLCHAIN_EXTERNAL_MUSL_CROSS && (BR2_mipsel && BR2_SOFT_FLOAT)
-	default "powerpc-linux-musl"     if BR2_TOOLCHAIN_EXTERNAL_MUSL_CROSS && BR2_powerpc
-	default "sh4-linux-musl"         if BR2_TOOLCHAIN_EXTERNAL_MUSL_CROSS && BR2_sh4
-	default "sh4eb-linux-musl"       if BR2_TOOLCHAIN_EXTERNAL_MUSL_CROSS && BR2_sh4eb
-	default "x86_64-linux-musl"	 if BR2_TOOLCHAIN_EXTERNAL_MUSL_CROSS && BR2_x86_64
-	default BR2_TOOLCHAIN_EXTERNAL_CUSTOM_PREFIX \
-					 if BR2_TOOLCHAIN_EXTERNAL_CUSTOM
+source "toolchain/toolchain-external/toolchain-external-blackfin-uclinux/Config.in.options"
+source "toolchain/toolchain-external/toolchain-external-arago-armv5te/Config.in.options"
+source "toolchain/toolchain-external/toolchain-external-arago-armv7a/Config.in.options"
+source "toolchain/toolchain-external/toolchain-external-codescape-mti-mips/Config.in.options"
+source "toolchain/toolchain-external/toolchain-external-codescape-img-mips/Config.in.options"
+source "toolchain/toolchain-external/toolchain-external-linaro-aarch64/Config.in.options"
+source "toolchain/toolchain-external/toolchain-external-linaro-arm/Config.in.options"
+source "toolchain/toolchain-external/toolchain-external-linaro-armeb/Config.in.options"
+source "toolchain/toolchain-external/toolchain-external-musl-cross/Config.in.options"
+source "toolchain/toolchain-external/toolchain-external-codesourcery-arm/Config.in.options"
+source "toolchain/toolchain-external/toolchain-external-codesourcery-amd64/Config.in.options"
+source "toolchain/toolchain-external/toolchain-external-codesourcery-aarch64/Config.in.options"
+source "toolchain/toolchain-external/toolchain-external-codesourcery-mips/Config.in.options"
+source "toolchain/toolchain-external/toolchain-external-codesourcery-niosII/Config.in.options"
+source "toolchain/toolchain-external/toolchain-external-codesourcery-sh/Config.in.options"
+source "toolchain/toolchain-external/toolchain-external-codesourcery-x86/Config.in.options"
+source "toolchain/toolchain-external/toolchain-external-synopsys-arc/Config.in.options"
+
+source "toolchain/toolchain-external/toolchain-external-custom/Config.in.options"
 
 config BR2_TOOLCHAIN_EXTERNAL_GLIBC
 	bool
@@ -667,332 +99,6 @@ config BR2_TOOLCHAIN_EXTERNAL_MUSL
 	# Compatibility headers: cdefs.h, queue.h
 	select BR2_PACKAGE_MUSL_COMPAT_HEADERS
 
-if BR2_TOOLCHAIN_EXTERNAL_CUSTOM
-
-choice
-	bool "External toolchain gcc version"
-	default BR2_TOOLCHAIN_EXTERNAL_GCC_4_3
-	help
-	  Set to the gcc version that is used by your external
-	  toolchain.
-
-config BR2_TOOLCHAIN_EXTERNAL_GCC_6
-	bool "6.x"
-	select BR2_TOOLCHAIN_GCC_AT_LEAST_6
-
-config BR2_TOOLCHAIN_EXTERNAL_GCC_5
-	bool "5.x"
-	select BR2_TOOLCHAIN_GCC_AT_LEAST_5
-
-config BR2_TOOLCHAIN_EXTERNAL_GCC_4_9
-	bool "4.9.x"
-	select BR2_TOOLCHAIN_GCC_AT_LEAST_4_9
-
-config BR2_TOOLCHAIN_EXTERNAL_GCC_4_8
-	bool "4.8.x"
-	select BR2_TOOLCHAIN_GCC_AT_LEAST_4_8
-
-config BR2_TOOLCHAIN_EXTERNAL_GCC_4_7
-	bool "4.7.x"
-	select BR2_TOOLCHAIN_GCC_AT_LEAST_4_7
-
-config BR2_TOOLCHAIN_EXTERNAL_GCC_4_6
-	bool "4.6.x"
-	select BR2_TOOLCHAIN_GCC_AT_LEAST_4_6
-
-config BR2_TOOLCHAIN_EXTERNAL_GCC_4_5
-	bool "4.5.x"
-	select BR2_TOOLCHAIN_GCC_AT_LEAST_4_5
-
-config BR2_TOOLCHAIN_EXTERNAL_GCC_4_4
-	bool "4.4.x"
-	select BR2_TOOLCHAIN_GCC_AT_LEAST_4_4
-
-config BR2_TOOLCHAIN_EXTERNAL_GCC_4_3
-	bool "4.3.x"
-	select BR2_TOOLCHAIN_GCC_AT_LEAST_4_3
-
-endchoice
-
-choice
-	bool "External toolchain kernel headers series"
-	default BR2_TOOLCHAIN_EXTERNAL_HEADERS_REALLY_OLD
-	help
-	  Set to the kernel headers version that were used to build
-	  this external toolchain.
-
-	  This is used to hide/show some packages that have strict
-	  requirements on the version of kernel headers.
-
-	  If unsure what version your toolchain is using, you can look
-	  at the value of LINUX_VERSION_CODE in linux/version.h in your
-	  toolchain. The Linux version is M.m.p, with:
-	    M = ( LINUX_VERSION_CODE >> 16 ) & 0xFF
-	    m = ( LINUX_VERSION_CODE >> 8  ) & 0xFF
-	    p = ( LINUX_VERSION_CODE >> 0  ) & 0xFF
-
-config BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_8
-	bool "4.8.x"
-	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_8
-
-config BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_7
-	bool "4.7.x"
-	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_7
-
-config BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_6
-	bool "4.6.x"
-	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_6
-
-config BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_5
-	bool "4.5.x"
-	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_5
-
-config BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_4
-	bool "4.4.x"
-	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_4
-
-config BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_3
-	bool "4.3.x"
-	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_3
-
-config BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_2
-	bool "4.2.x"
-	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_2
-
-config BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_1
-	bool "4.1.x"
-	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_1
-
-config BR2_TOOLCHAIN_EXTERNAL_HEADERS_4_0
-	bool "4.0.x"
-	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_4_0
-
-config BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_19
-	bool "3.19.x"
-	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_19
-
-config BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_18
-	bool "3.18.x"
-	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_18
-
-config BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_17
-	bool "3.17.x"
-	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_17
-
-config BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_16
-	bool "3.16.x"
-	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_16
-
-config BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_15
-	bool "3.15.x"
-	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_15
-
-config BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_14
-	bool "3.14.x"
-	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_14
-
-config BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_13
-	bool "3.13.x"
-	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_13
-
-config BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_12
-	bool "3.12.x"
-	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_12
-
-config BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_11
-	bool "3.11.x"
-	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_11
-
-config BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_10
-	bool "3.10.x"
-	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_10
-
-config BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_9
-	bool "3.9.x"
-	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_9
-
-config BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_8
-	bool "3.8.x"
-	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_8
-
-config BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_7
-	bool "3.7.x"
-	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_7
-
-config BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_6
-	bool "3.6.x"
-	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_6
-
-config BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_5
-	bool "3.5.x"
-	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_5
-
-config BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_4
-	bool "3.4.x"
-	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_4
-
-config BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_3
-	bool "3.3.x"
-	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_3
-
-config BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_2
-	bool "3.2.x"
-	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_2
-
-config BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_1
-	bool "3.1.x"
-	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_1
-
-config BR2_TOOLCHAIN_EXTERNAL_HEADERS_3_0
-	bool "3.0.x"
-	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_0
-
-config BR2_TOOLCHAIN_EXTERNAL_HEADERS_REALLY_OLD
-	bool "2.6.x"
-
-endchoice
-
-choice
-	prompt "External toolchain C library"
-	default BR2_TOOLCHAIN_EXTERNAL_CUSTOM_UCLIBC
-
-config BR2_TOOLCHAIN_EXTERNAL_CUSTOM_UCLIBC
-	bool "uClibc/uClibc-ng"
-	select BR2_TOOLCHAIN_EXTERNAL_UCLIBC
-	# For the time being, we assume that all custom external
-	# toolchains have shadow password support.
-	select BR2_TOOLCHAIN_HAS_SHADOW_PASSWORDS
-	help
-	  Select this option if your external toolchain uses the
-	  uClibc (available from http://www.uclibc.org/)
-	  or uClibc-ng (available from http://www.uclibc-ng.org)
-	  C library.
-
-config BR2_TOOLCHAIN_EXTERNAL_CUSTOM_GLIBC
-	bool "glibc/eglibc"
-	depends on !BR2_STATIC_LIBS
-	select BR2_TOOLCHAIN_EXTERNAL_GLIBC
-	help
-	  Select this option if your external toolchain uses the GNU C
-	  library (available from https://www.gnu.org/software/libc/)
-	  or its variant the eglibc library (http://www.eglibc.org/).
-
-	  Note: eglibc is a variant of glibc that (among other things)
-	  can be configured to exclude some of its features. Using a
-	  toolchain with eglibc configured to exclude key features may
-	  cause build failures to some packages.
-
-comment "glibc only available with shared lib support"
-	depends on BR2_STATIC_LIBS
-
-config BR2_TOOLCHAIN_EXTERNAL_CUSTOM_MUSL
-	bool "musl"
-	select BR2_TOOLCHAIN_EXTERNAL_MUSL
-	help
-	  Select this option if your external toolchain uses the
-	  'musl' C library, available from http://www.musl-libc.org/.
-
-endchoice
-
-if BR2_TOOLCHAIN_EXTERNAL_CUSTOM_UCLIBC
-
-config BR2_TOOLCHAIN_EXTERNAL_WCHAR
-	bool "Toolchain has WCHAR support?"
-	select BR2_USE_WCHAR
-	help
-	  Select this option if your external toolchain supports
-	  WCHAR. If you don't know, leave the default value, Buildroot
-	  will tell you if it's correct or not.
-
-config BR2_TOOLCHAIN_EXTERNAL_LOCALE
-	bool "Toolchain has locale support?"
-	select BR2_TOOLCHAIN_EXTERNAL_WCHAR
-	select BR2_ENABLE_LOCALE
-	help
-	  Select this option if your external toolchain has locale
-	  support. If you don't know, leave the default value,
-	  Buildroot will tell you if it's correct or not.
-
-config BR2_TOOLCHAIN_EXTERNAL_HAS_THREADS
-	bool "Toolchain has threads support?"
-	select BR2_TOOLCHAIN_HAS_THREADS
-	default y
-	help
-	  Select this option if your external toolchain has thread
-	  support. If you don't know, leave the default value,
-	  Buildroot will tell you if it's correct or not.
-
-if BR2_TOOLCHAIN_EXTERNAL_HAS_THREADS
-
-config BR2_TOOLCHAIN_EXTERNAL_HAS_THREADS_DEBUG
-	bool "Toolchain has threads debugging support?"
-	select BR2_TOOLCHAIN_HAS_THREADS_DEBUG
-	default y
-	help
-	  Select this option if your external toolchain has thread
-	  debugging support. If you don't know, leave the default
-	  value, Buildroot will tell you if it's correct or not.
-
-config BR2_TOOLCHAIN_EXTERNAL_HAS_THREADS_NPTL
-	bool "Toolchain has NPTL threads support?"
-	select BR2_TOOLCHAIN_HAS_THREADS_NPTL
-	default y
-	help
-	  Select this option if your external toolchain uses the NPTL
-	  (Native Posix Thread Library) implementation of Posix
-	  threads. If you don't know, leave the default value,
-	  Buildroot will tell you if it's correct or not.
-
-endif # BR2_TOOLCHAIN_EXTERNAL_HAS_THREADS
-
-endif # BR2_TOOLCHAIN_EXTERNAL_CUSTOM_UCLIBC
-
-config BR2_TOOLCHAIN_EXTERNAL_HAS_SSP
-	bool "Toolchain has SSP support?"
-	select BR2_TOOLCHAIN_HAS_SSP
-	default y if BR2_TOOLCHAIN_EXTERNAL_GLIBC
-	default y if BR2_TOOLCHAIN_EXTERNAL_MUSL
-	help
-	  Selection this option if your external toolchain has Stack
-	  Smashing Protection support enabled. If you don't know,
-	  leave the default value, Buildroot will tell you if it's
-	  correct or not.
-
-config BR2_TOOLCHAIN_EXTERNAL_INET_RPC
-	bool "Toolchain has RPC support?"
-	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
-	depends on !BR2_TOOLCHAIN_EXTERNAL_MUSL
-	default y if BR2_TOOLCHAIN_EXTERNAL_GLIBC
-	help
-	  Select this option if your external toolchain supports
-	  RPC. If you don't know, leave the default value, Buildroot
-	  will tell you if it's correct or not.
-
-config BR2_TOOLCHAIN_EXTERNAL_CXX
-	bool "Toolchain has C++ support?"
-	select BR2_INSTALL_LIBSTDCPP
-	help
-	  Select this option if your external toolchain has C++
-	  support. If you don't know, leave the default value,
-	  Buildroot will tell you if it's correct or not.
-
-config BR2_TOOLCHAIN_EXTERNAL_FORTRAN
-	bool "Toolchain has Fortran support?"
-	select BR2_TOOLCHAIN_HAS_FORTRAN
-	help
-	  Select this option if your external toolchain has Fortran
-	  support. If you don't know, leave the default value,
-	  Buildroot will tell you if it's correct or not.
-
-config BR2_TOOLCHAIN_EXTRA_EXTERNAL_LIBS
-	string "Extra toolchain libraries to be copied to target"
-	help
-	  If your external toolchain provides extra libraries that
-	  need to be copied to the target filesystem, enter them
-	  here, separated by spaces.
-
-endif # BR2_TOOLCHAIN_EXTERNAL_CUSTOM
-
 config BR2_TOOLCHAIN_EXTERNAL_GDB_SERVER_COPY
 	bool "Copy gdb server to the Target"
 	depends on BR2_TOOLCHAIN_EXTERNAL
diff --git a/toolchain/toolchain-external/toolchain-external.mk b/toolchain/toolchain-external/pkg-toolchain-external.mk
similarity index 53%
copy from toolchain/toolchain-external/toolchain-external.mk
copy to toolchain/toolchain-external/pkg-toolchain-external.mk
index 6ae4bf5..784ae89 100644
--- a/toolchain/toolchain-external/toolchain-external.mk
+++ b/toolchain/toolchain-external/pkg-toolchain-external.mk
@@ -1,16 +1,10 @@
-################################################################################
 #
-# toolchain-external
-#
-################################################################################
-
-#
-# This package implements the support for external toolchains, i.e
-# toolchains that are available pre-built, ready to use. Such toolchain
-# may either be readily available on the Web (Linaro, Sourcery
-# CodeBench, from processor vendors) or may be built with tools like
-# Crosstool-NG or Buildroot itself. So far, we have tested this
-# with:
+# This package infrastructure implements the support for external
+# toolchains, i.e toolchains that are available pre-built, ready to
+# use. Such toolchain may either be readily available on the Web
+# (Linaro, Sourcery CodeBench, from processor vendors) or may be built
+# with tools like Crosstool-NG or Buildroot itself. So far, we have
+# tested this with:
 #
 #  * Toolchains generated by Crosstool-NG
 #  * Toolchains generated by Buildroot
@@ -27,16 +21,15 @@
 # The basic principle is the following
 #
 #  1. If the toolchain is not pre-installed, download and extract it
-#  in $(TOOLCHAIN_EXTERNAL_INSTALL_DIR). Otherwise,
-#  $(TOOLCHAIN_EXTERNAL_INSTALL_DIR) points to were the toolchain has
-#  already been installed by the user.
+#  in $(HOST_DIR)/opt/ext-toolchain. Otherwise, we use the toolchain
+#  from the location where it has been installed by the user.
 #
 #  2. For all external toolchains, perform some checks on the
 #  conformity between the toolchain configuration described in the
 #  Buildroot menuconfig system, and the real configuration of the
 #  external toolchain. This is for example important to make sure that
 #  the Buildroot configuration system knows whether the toolchain
-#  supports RPC, IPv6, locales, large files, etc. Unfortunately, these
+#  supports RPC, locales, large files, etc. Unfortunately, these
 #  things cannot be detected automatically, since the value of these
 #  options (such as BR2_TOOLCHAIN_HAS_NATIVE_RPC) are needed at
 #  configuration time because these options are used as dependencies
@@ -63,6 +56,15 @@
 #  $(HOST_DIR)/usr/bin like for the internal toolchains, and the rest
 #  of Buildroot is handled identical for the 2 toolchain types.
 
+#  - Definitions of the list of libraries that should be copied to the
+#    target.
+#  - Definition of the CFLAGS to use with the external toolchain, as
+#    well as the common toolchain wrapper build arguments
+#
+
+#
+# Define the list of libraries to copy
+#
 ifeq ($(BR2_TOOLCHAIN_EXTERNAL_GLIBC)$(BR2_TOOLCHAIN_EXTERNAL_UCLIBC),y)
 TOOLCHAIN_EXTERNAL_LIBS += libatomic.so.* libc.so.* libcrypt.so.* libdl.so.* libgcc_s.so.* libm.so.* libnsl.so.* libresolv.so.* librt.so.* libutil.so.*
 ifeq ($(BR2_TOOLCHAIN_EXTERNAL_GLIBC)$(BR2_ARM_EABIHF),yy)
@@ -100,94 +102,16 @@ endif
 
 TOOLCHAIN_EXTERNAL_LIBS += $(call qstrip,$(BR2_TOOLCHAIN_EXTRA_EXTERNAL_LIBS))
 
-# Details about sysroot directory selection.
-#
-# To find the sysroot directory, we use the trick of looking for the
-# 'libc.a' file with the -print-file-name gcc option, and then
-# mangling the path to find the base directory of the sysroot.
-#
-# Note that we do not use the -print-sysroot option, because it is
-# only available since gcc 4.4.x, and we only recently dropped support
-# for 4.2.x and 4.3.x.
 #
-# When doing this, we don't pass any option to gcc that could select a
-# multilib variant (such as -march) as we want the "main" sysroot,
-# which contains all variants of the C library in the case of multilib
-# toolchains. We use the TARGET_CC_NO_SYSROOT variable, which is the
-# path of the cross-compiler, without the --sysroot=$(STAGING_DIR),
-# since what we want to find is the location of the original toolchain
-# sysroot. This "main" sysroot directory is stored in SYSROOT_DIR.
+# Calculate the common CFLAGS and wrapper arguments
 #
-# Then, multilib toolchains are a little bit more complicated, since
-# they in fact have multiple sysroots, one for each variant supported
-# by the toolchain. So we need to find the particular sysroot we're
-# interested in.
-#
-# To do so, we ask the compiler where its sysroot is by passing all
-# flags (including -march and al.), except the --sysroot flag since we
-# want to the compiler to tell us where its original sysroot
-# is. ARCH_SUBDIR will contain the subdirectory, in the main
-# SYSROOT_DIR, that corresponds to the selected architecture
-# variant. ARCH_SYSROOT_DIR will contain the full path to this
-# location.
-#
-# One might wonder why we don't just bother with ARCH_SYSROOT_DIR. The
-# fact is that in multilib toolchains, the header files are often only
-# present in the main sysroot, and only the libraries are available in
-# each variant-specific sysroot directory.
-
-
-TOOLCHAIN_EXTERNAL_PREFIX = $(call qstrip,$(BR2_TOOLCHAIN_EXTERNAL_PREFIX))
-TOOLCHAIN_EXTERNAL_DOWNLOAD_INSTALL_DIR = $(HOST_DIR)/opt/ext-toolchain
-
-ifeq ($(BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD),y)
-TOOLCHAIN_EXTERNAL_INSTALL_DIR = $(TOOLCHAIN_EXTERNAL_DOWNLOAD_INSTALL_DIR)
-else
-TOOLCHAIN_EXTERNAL_INSTALL_DIR = $(call qstrip,$(BR2_TOOLCHAIN_EXTERNAL_PATH))
-endif
-
-ifeq ($(TOOLCHAIN_EXTERNAL_INSTALL_DIR),)
-ifneq ($(TOOLCHAIN_EXTERNAL_PREFIX),)
-# if no path set, figure it out from path
-TOOLCHAIN_EXTERNAL_BIN := $(shell dirname $(shell which $(TOOLCHAIN_EXTERNAL_PREFIX)-gcc))
-endif
-else
-ifeq ($(BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX),y)
-TOOLCHAIN_EXTERNAL_BIN := $(TOOLCHAIN_EXTERNAL_INSTALL_DIR)/$(TOOLCHAIN_EXTERNAL_PREFIX)/bin
-else
-TOOLCHAIN_EXTERNAL_BIN := $(TOOLCHAIN_EXTERNAL_INSTALL_DIR)/bin
-endif
-endif
-
-# If this is a buildroot toolchain, it already has a wrapper which we want to
-# bypass. Since this is only evaluated after it has been extracted, we can use
-# $(wildcard ...) here.
-TOOLCHAIN_EXTERNAL_SUFFIX = \
-	$(if $(wildcard $(TOOLCHAIN_EXTERNAL_BIN)/*.br_real),.br_real)
-TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += \
-	-DBR_CROSS_PATH_SUFFIX='"$(TOOLCHAIN_EXTERNAL_SUFFIX)"'
-
-TOOLCHAIN_EXTERNAL_CROSS = $(TOOLCHAIN_EXTERNAL_BIN)/$(TOOLCHAIN_EXTERNAL_PREFIX)-
-TOOLCHAIN_EXTERNAL_CC = $(TOOLCHAIN_EXTERNAL_CROSS)gcc$(TOOLCHAIN_EXTERNAL_SUFFIX)
-TOOLCHAIN_EXTERNAL_CXX = $(TOOLCHAIN_EXTERNAL_CROSS)g++$(TOOLCHAIN_EXTERNAL_SUFFIX)
-TOOLCHAIN_EXTERNAL_FC = $(TOOLCHAIN_EXTERNAL_CROSS)gfortran$(TOOLCHAIN_EXTERNAL_SUFFIX)
-TOOLCHAIN_EXTERNAL_READELF = $(TOOLCHAIN_EXTERNAL_CROSS)readelf$(TOOLCHAIN_EXTERNAL_SUFFIX)
-
-ifeq ($(filter $(HOST_DIR)/%,$(TOOLCHAIN_EXTERNAL_BIN)),)
-# TOOLCHAIN_EXTERNAL_BIN points outside HOST_DIR => absolute path
-TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += \
-	-DBR_CROSS_PATH_ABS='"$(TOOLCHAIN_EXTERNAL_BIN)"'
-else
-# TOOLCHAIN_EXTERNAL_BIN points inside HOST_DIR => relative path
-TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += \
-	-DBR_CROSS_PATH_REL='"$(TOOLCHAIN_EXTERNAL_BIN:$(HOST_DIR)/%=%)"'
-endif
 
 ifeq ($(call qstrip,$(BR2_GCC_TARGET_CPU_REVISION)),)
 CC_TARGET_CPU_ := $(call qstrip,$(BR2_GCC_TARGET_CPU))
 else
 CC_TARGET_CPU_ := $(call qstrip,$(BR2_GCC_TARGET_CPU)-$(BR2_GCC_TARGET_CPU_REVISION))
 endif
+
 CC_TARGET_ARCH_ := $(call qstrip,$(BR2_GCC_TARGET_ARCH))
 CC_TARGET_ABI_ := $(call qstrip,$(BR2_GCC_TARGET_ABI))
 CC_TARGET_FPU_ := $(call qstrip,$(BR2_GCC_TARGET_FPU))
@@ -198,46 +122,46 @@ CC_TARGET_MODE_ := $(call qstrip,$(BR2_GCC_TARGET_MODE))
 # to select the right multilib variant
 ifeq ($(BR2_x86_64),y)
 TOOLCHAIN_EXTERNAL_CFLAGS += -m64
-TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_64
+TOOLCHAIN_EXTERNAL_COMMON_WRAPPER_ARGS += -DBR_64
 endif
 ifneq ($(CC_TARGET_ARCH_),)
 TOOLCHAIN_EXTERNAL_CFLAGS += -march=$(CC_TARGET_ARCH_)
-TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_ARCH='"$(CC_TARGET_ARCH_)"'
+TOOLCHAIN_EXTERNAL_COMMON_WRAPPER_ARGS += -DBR_ARCH='"$(CC_TARGET_ARCH_)"'
 endif
 ifneq ($(CC_TARGET_CPU_),)
 TOOLCHAIN_EXTERNAL_CFLAGS += -mcpu=$(CC_TARGET_CPU_)
-TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_CPU='"$(CC_TARGET_CPU_)"'
+TOOLCHAIN_EXTERNAL_COMMON_WRAPPER_ARGS += -DBR_CPU='"$(CC_TARGET_CPU_)"'
 endif
 ifneq ($(CC_TARGET_ABI_),)
 TOOLCHAIN_EXTERNAL_CFLAGS += -mabi=$(CC_TARGET_ABI_)
-TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_ABI='"$(CC_TARGET_ABI_)"'
+TOOLCHAIN_EXTERNAL_COMMON_WRAPPER_ARGS += -DBR_ABI='"$(CC_TARGET_ABI_)"'
 endif
 ifneq ($(CC_TARGET_FPU_),)
 TOOLCHAIN_EXTERNAL_CFLAGS += -mfpu=$(CC_TARGET_FPU_)
-TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_FPU='"$(CC_TARGET_FPU_)"'
+TOOLCHAIN_EXTERNAL_COMMON_WRAPPER_ARGS += -DBR_FPU='"$(CC_TARGET_FPU_)"'
 endif
 ifneq ($(CC_TARGET_FLOAT_ABI_),)
 TOOLCHAIN_EXTERNAL_CFLAGS += -mfloat-abi=$(CC_TARGET_FLOAT_ABI_)
-TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_FLOAT_ABI='"$(CC_TARGET_FLOAT_ABI_)"'
+TOOLCHAIN_EXTERNAL_COMMON_WRAPPER_ARGS += -DBR_FLOAT_ABI='"$(CC_TARGET_FLOAT_ABI_)"'
 endif
 ifneq ($(CC_TARGET_MODE_),)
 TOOLCHAIN_EXTERNAL_CFLAGS += -m$(CC_TARGET_MODE_)
-TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_MODE='"$(CC_TARGET_MODE_)"'
+TOOLCHAIN_EXTERNAL_COMMON_WRAPPER_ARGS += -DBR_MODE='"$(CC_TARGET_MODE_)"'
 endif
 ifeq ($(BR2_BINFMT_FLAT),y)
 TOOLCHAIN_EXTERNAL_CFLAGS += -Wl,-elf2flt
-TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_BINFMT_FLAT
+TOOLCHAIN_EXTERNAL_COMMON_WRAPPER_ARGS += -DBR_BINFMT_FLAT
 endif
 ifeq ($(BR2_mipsel)$(BR2_mips64el),y)
-TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_MIPS_TARGET_LITTLE_ENDIAN
+TOOLCHAIN_EXTERNAL_COMMON_WRAPPER_ARGS += -DBR_MIPS_TARGET_LITTLE_ENDIAN
 TOOLCHAIN_EXTERNAL_CFLAGS += -EL
 endif
 ifeq ($(BR2_mips)$(BR2_mips64),y)
-TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_MIPS_TARGET_BIG_ENDIAN
+TOOLCHAIN_EXTERNAL_COMMON_WRAPPER_ARGS += -DBR_MIPS_TARGET_BIG_ENDIAN
 TOOLCHAIN_EXTERNAL_CFLAGS += -EB
 endif
 ifeq ($(BR2_arceb),y)
-TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_ARC_TARGET_BIG_ENDIAN
+TOOLCHAIN_EXTERNAL_COMMON_WRAPPER_ARGS += -DBR_ARC_TARGET_BIG_ENDIAN
 TOOLCHAIN_EXTERNAL_CFLAGS += -EB
 endif
 
@@ -245,235 +169,95 @@ TOOLCHAIN_EXTERNAL_CFLAGS += $(call qstrip,$(BR2_TARGET_OPTIMIZATION))
 
 ifeq ($(BR2_SOFT_FLOAT),y)
 TOOLCHAIN_EXTERNAL_CFLAGS += -msoft-float
-TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_SOFTFLOAT=1
-endif
-
-# musl does not provide an implementation for sys/queue.h or sys/cdefs.h.
-# So, add the musl-compat-headers package that will install those files,
-# into the staging directory:
-#   sys/queue.h:  header from NetBSD
-#   sys/cdefs.h:  minimalist header bundled in Buildroot
-ifeq ($(BR2_TOOLCHAIN_USES_MUSL),y)
-TOOLCHAIN_EXTERNAL_DEPENDENCIES += musl-compat-headers
+TOOLCHAIN_EXTERNAL_COMMON_WRAPPER_ARGS += -DBR_SOFTFLOAT=1
 endif
 
-# The Codescape toolchain uses a sysroot layout that places them
-# side-by-side instead of nested like multilibs. A symlink is needed
-# much like for the nested sysroots which are handled in
-# copy_toolchain_sysroot but there is not enough information in there
-# to determine whether the sysroot layout was nested or side-by-side.
-# Add the symlink here for now.
-define TOOLCHAIN_EXTERNAL_CODESCAPE_MIPS_SYMLINK
-	$(Q)ARCH_SYSROOT_DIR="$(call toolchain_find_sysroot,$(TOOLCHAIN_EXTERNAL_CC) $(TOOLCHAIN_EXTERNAL_CFLAGS))"; \
-	ARCH_SUBDIR=`basename $${ARCH_SYSROOT_DIR}`; \
-	ln -snf . $(STAGING_DIR)/$${ARCH_SUBDIR}
-endef
-
-# Special fixup for Codescape MIPS toolchains, that have bin-<abi> and
-# sbin-<abi> directories. We create symlinks bin -> bin-<abi> and sbin
-# -> sbin-<abi> so that the rest of Buildroot can find the toolchain
-# tools in the appropriate location.
-ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESCAPE_IMG_MIPS)$(BR2_TOOLCHAIN_EXTERNAL_CODESCAPE_MTI_MIPS),y)
-ifeq ($(BR2_MIPS_OABI32),y)
-TOOLCHAIN_EXTERNAL_CODESCAPE_MIPS_BIN_DIR_SUFFIX = o32
-else ifeq ($(BR2_MIPS_NABI32),y)
-TOOLCHAIN_EXTERNAL_CODESCAPE_MIPS_BIN_DIR_SUFFIX = n32
-else ifeq ($(BR2_MIPS_NABI64),y)
-TOOLCHAIN_EXTERNAL_CODESCAPE_MIPS_BIN_DIR_SUFFIX = n64
-endif
-
-define TOOLCHAIN_EXTERNAL_CODESCAPE_MIPS_STAGING_FIXUPS
-	rmdir $(STAGING_DIR)/usr/bin $(STAGING_DIR)/usr/sbin
-	ln -sf bin-$(TOOLCHAIN_EXTERNAL_CODESCAPE_MIPS_BIN_DIR_SUFFIX) $(STAGING_DIR)/usr/bin
-	ln -sf sbin-$(TOOLCHAIN_EXTERNAL_CODESCAPE_MIPS_BIN_DIR_SUFFIX) $(STAGING_DIR)/usr/sbin
-endef
-endif
-
-# Special handling for Blackfin toolchain, because of the split in two
-# tarballs, and the organization of tarball contents. The tarballs
-# contain ./opt/uClinux/{bfin-uclinux,bfin-linux-uclibc} directories,
-# which themselves contain the toolchain. This is why we strip more
-# components than usual.
-define TOOLCHAIN_EXTERNAL_BLACKFIN_UCLIBC_EXTRA_EXTRACT
-	$(call suitable-extractor,$(TOOLCHAIN_EXTERNAL_EXTRA_DOWNLOADS)) $(DL_DIR)/$(TOOLCHAIN_EXTERNAL_EXTRA_DOWNLOADS) | \
-		$(TAR) --strip-components=3 --hard-dereference -C $(@D) $(TAR_OPTIONS) -
-endef
-
-ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM),y)
-TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/arm-none-linux-gnueabi
-TOOLCHAIN_EXTERNAL_SOURCE = arm-2014.05-29-arm-none-linux-gnueabi-i686-pc-linux-gnu.tar.bz2
-else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_ARAGO_ARMV7A),y)
-TOOLCHAIN_EXTERNAL_SITE = http://software-dl.ti.com/sdoemb/sdoemb_public_sw/arago_toolchain/2011_09/exports
-TOOLCHAIN_EXTERNAL_SOURCE = arago-2011.09-armv7a-linux-gnueabi-sdk.tar.bz2
-TOOLCHAIN_EXTERNAL_ACTUAL_SOURCE_TARBALL = arago-toolchain-2011.09-sources.tar.bz2
-define TOOLCHAIN_EXTERNAL_FIXUP_CMDS
-	mv $(@D)/arago-2011.09/armv7a/* $(@D)/
-	rm -rf $(@D)/arago-2011.09/
-endef
-TOOLCHAIN_EXTERNAL_POST_EXTRACT_HOOKS += TOOLCHAIN_EXTERNAL_FIXUP_CMDS
-else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_ARAGO_ARMV5TE),y)
-TOOLCHAIN_EXTERNAL_SITE = http://software-dl.ti.com/sdoemb/sdoemb_public_sw/arago_toolchain/2011_09/exports
-TOOLCHAIN_EXTERNAL_SOURCE = arago-2011.09-armv5te-linux-gnueabi-sdk.tar.bz2
-TOOLCHAIN_EXTERNAL_ACTUAL_SOURCE_TARBALL = arago-toolchain-2011.09-sources.tar.bz2
-define TOOLCHAIN_EXTERNAL_FIXUP_CMDS
-	mv $(@D)/arago-2011.09/armv5te/* $(@D)/
-	rm -rf $(@D)/arago-2011.09/
-endef
-TOOLCHAIN_EXTERNAL_POST_EXTRACT_HOOKS += TOOLCHAIN_EXTERNAL_FIXUP_CMDS
-else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_LINARO_ARM),y)
-TOOLCHAIN_EXTERNAL_SITE = https://releases.linaro.org/components/toolchain/binaries/5.3-2016.05/arm-linux-gnueabihf
-ifeq ($(HOSTARCH),x86)
-TOOLCHAIN_EXTERNAL_SOURCE = gcc-linaro-5.3.1-2016.05-i686_arm-linux-gnueabihf.tar.xz
-else
-TOOLCHAIN_EXTERNAL_SOURCE = gcc-linaro-5.3.1-2016.05-x86_64_arm-linux-gnueabihf.tar.xz
-endif
-else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_LINARO_ARMEB),y)
-TOOLCHAIN_EXTERNAL_SITE = https://releases.linaro.org/components/toolchain/binaries/5.3-2016.05/armeb-linux-gnueabihf
-ifeq ($(HOSTARCH),x86)
-TOOLCHAIN_EXTERNAL_SOURCE = gcc-linaro-5.3.1-2016.05-i686_armeb-linux-gnueabihf.tar.xz
-else
-TOOLCHAIN_EXTERNAL_SOURCE = gcc-linaro-5.3.1-2016.05-x86_64_armeb-linux-gnueabihf.tar.xz
-endif
-else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS),y)
-TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/mips-linux-gnu
-TOOLCHAIN_EXTERNAL_SOURCE = mips-2016.05-8-mips-linux-gnu-i686-pc-linux-gnu.tar.bz2
-else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_NIOSII),y)
-TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/nios2-linux-gnu
-TOOLCHAIN_EXTERNAL_SOURCE = sourceryg++-2016.05-10-nios2-linux-gnu-i686-pc-linux-gnu.tar.bz2
-else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_SH),y)
-TOOLCHAIN_EXTERNAL_SITE = https://sourcery.mentor.com/public/gnu_toolchain/sh-linux-gnu
-TOOLCHAIN_EXTERNAL_SOURCE = renesas-2012.09-61-sh-linux-gnu-i686-pc-linux-gnu.tar.bz2
-else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_X86),y)
-TOOLCHAIN_EXTERNAL_SITE = https://sourcery.mentor.com/public/gnu_toolchain/i686-pc-linux-gnu
-TOOLCHAIN_EXTERNAL_SOURCE = ia32-2012.09-62-i686-pc-linux-gnu-i386-linux.tar.bz2
-else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_AMD64),y)
-TOOLCHAIN_EXTERNAL_SITE = https://sourcery.mentor.com/public/gnu_toolchain/x86_64-amd-linux-gnu
-TOOLCHAIN_EXTERNAL_SOURCE = amd-2015.11-139-x86_64-amd-linux-gnu-i686-pc-linux-gnu.tar.bz2
-else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESCAPE_IMG_MIPS),y)
-TOOLCHAIN_EXTERNAL_SITE = http://codescape-mips-sdk.imgtec.com/components/toolchain/2016.05-03
-TOOLCHAIN_EXTERNAL_SOURCE = Codescape.GNU.Tools.Package.2016.05-03.for.MIPS.IMG.Linux.CentOS-5.x86.tar.gz
-TOOLCHAIN_EXTERNAL_POST_INSTALL_STAGING_HOOKS += TOOLCHAIN_EXTERNAL_CODESCAPE_MIPS_SYMLINK
-TOOLCHAIN_EXTERNAL_POST_INSTALL_STAGING_HOOKS += TOOLCHAIN_EXTERNAL_CODESCAPE_MIPS_STAGING_FIXUPS
-TOOLCHAIN_EXTERNAL_STRIP_COMPONENTS = 2
-else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESCAPE_MTI_MIPS),y)
-TOOLCHAIN_EXTERNAL_SITE = http://codescape-mips-sdk.imgtec.com/components/toolchain/2016.05-03
-TOOLCHAIN_EXTERNAL_SOURCE = Codescape.GNU.Tools.Package.2016.05-03.for.MIPS.MTI.Linux.CentOS-5.x86.tar.gz
-TOOLCHAIN_EXTERNAL_POST_INSTALL_STAGING_HOOKS += TOOLCHAIN_EXTERNAL_CODESCAPE_MIPS_SYMLINK
-TOOLCHAIN_EXTERNAL_POST_INSTALL_STAGING_HOOKS += TOOLCHAIN_EXTERNAL_CODESCAPE_MIPS_STAGING_FIXUPS
-TOOLCHAIN_EXTERNAL_STRIP_COMPONENTS = 2
-else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX),y)
-TOOLCHAIN_EXTERNAL_SITE = http://downloads.sourceforge.net/project/adi-toolchain/2014R1/2014R1-RC2/i386
-TOOLCHAIN_EXTERNAL_SOURCE = blackfin-toolchain-2014R1-RC2.i386.tar.bz2
-TOOLCHAIN_EXTERNAL_EXTRA_DOWNLOADS = blackfin-toolchain-uclibc-full-2014R1-RC2.i386.tar.bz2
-TOOLCHAIN_EXTERNAL_STRIP_COMPONENTS = 3
-TOOLCHAIN_EXTERNAL_POST_EXTRACT_HOOKS += TOOLCHAIN_EXTERNAL_BLACKFIN_UCLIBC_EXTRA_EXTRACT
-else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_LINARO_AARCH64),y)
-TOOLCHAIN_EXTERNAL_SITE = https://releases.linaro.org/components/toolchain/binaries/5.3-2016.05/aarch64-linux-gnu
-ifeq ($(HOSTARCH),x86)
-TOOLCHAIN_EXTERNAL_SOURCE = gcc-linaro-5.3.1-2016.05-i686_aarch64-linux-gnu.tar.xz
-else
-TOOLCHAIN_EXTERNAL_SOURCE = gcc-linaro-5.3.1-2016.05-x86_64_aarch64-linux-gnu.tar.xz
-endif
-else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_AARCH64),y)
-TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/aarch64-amd-linux-gnu
-TOOLCHAIN_EXTERNAL_SOURCE = aarch64-amd-2014.11-95-aarch64-amd-linux-gnu-i686-pc-linux-gnu.tar.bz2
-define TOOLCHAIN_EXTERNAL_CODESOURCERY_AARCH64_STAGING_FIXUP
-	ln -sf ld-2.20.so $(STAGING_DIR)/lib/ld-linux-aarch64.so.1
-endef
-TOOLCHAIN_EXTERNAL_POST_INSTALL_STAGING_HOOKS += TOOLCHAIN_EXTERNAL_CODESOURCERY_AARCH64_STAGING_FIXUP
-define TOOLCHAIN_EXTERNAL_CODESOURCERY_AARCH64_TARGET_FIXUP
-	ln -sf ld-2.20.so $(TARGET_DIR)/lib/ld-linux-aarch64.so.1
-endef
-TOOLCHAIN_EXTERNAL_POST_INSTALL_TARGET_HOOKS += TOOLCHAIN_EXTERNAL_CODESOURCERY_AARCH64_TARGET_FIXUP
-else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_MUSL_CROSS),y)
-TOOLCHAIN_EXTERNAL_VERSION = 1.1.12
-TOOLCHAIN_EXTERNAL_SITE = https://googledrive.com/host/0BwnS5DMB0YQ6bDhPZkpOYVFhbk0/musl-$(TOOLCHAIN_EXTERNAL_VERSION)
-ifeq ($(BR2_arm)$(BR2_ARM_EABI),yy)
-TOOLCHAIN_EXTERNAL_SOURCE = crossx86-arm-linux-musleabi-$(TOOLCHAIN_EXTERNAL_VERSION).tar.xz
-else ifeq ($(BR2_arm)$(BR2_ARM_EABIHF),yy)
-TOOLCHAIN_EXTERNAL_SOURCE = crossx86-arm-linux-musleabihf-$(TOOLCHAIN_EXTERNAL_VERSION).tar.xz
-else ifeq ($(BR2_armeb),y)
-TOOLCHAIN_EXTERNAL_SOURCE = crossx86-armeb-linux-musleabi-$(TOOLCHAIN_EXTERNAL_VERSION).tar.xz
-else ifeq ($(BR2_i386),y)
-TOOLCHAIN_EXTERNAL_SOURCE = crossx86-i486-linux-musl-$(TOOLCHAIN_EXTERNAL_VERSION).tar.xz
-else ifeq ($(BR2_mips),y)
-TOOLCHAIN_EXTERNAL_SOURCE = crossx86-mips-linux-musl-$(TOOLCHAIN_EXTERNAL_VERSION).tar.xz
-else ifeq ($(BR2_mipsel):$(BR2_SOFT_FLOAT),y:)
-TOOLCHAIN_EXTERNAL_SOURCE = crossx86-mipsel-linux-musl-$(TOOLCHAIN_EXTERNAL_VERSION).tar.xz
-else ifeq ($(BR2_mipsel):$(BR2_SOFT_FLOAT),y:y)
-TOOLCHAIN_EXTERNAL_SOURCE = crossx86-mipsel-sf-linux-musl-$(TOOLCHAIN_EXTERNAL_VERSION).tar.xz
-else ifeq ($(BR2_powerpc),y)
-TOOLCHAIN_EXTERNAL_SOURCE = crossx86-powerpc-linux-musl-$(TOOLCHAIN_EXTERNAL_VERSION).tar.xz
-else ifeq ($(BR2_sh4),y)
-TOOLCHAIN_EXTERNAL_SOURCE = crossx86-sh4-linux-musl-$(TOOLCHAIN_EXTERNAL_VERSION).tar.xz
-else ifeq ($(BR2_sh4eb),y)
-TOOLCHAIN_EXTERNAL_SOURCE = crossx86-sh4eb-linux-musl-$(TOOLCHAIN_EXTERNAL_VERSION).tar.xz
-else ifeq ($(BR2_x86_64),y)
-TOOLCHAIN_EXTERNAL_SOURCE = crossx86-x86_64-linux-musl-$(TOOLCHAIN_EXTERNAL_VERSION).tar.xz
-endif
-else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC),y)
-TOOLCHAIN_EXTERNAL_SITE = https://github.com/foss-for-synopsys-dwc-arc-processors/toolchain/releases/download/arc-2014.12
-ifeq ($(BR2_arc750d)$(BR2_arc770d),y)
-TOOLCHAIN_EXTERNAL_SYNOPSYS_CORE = arc700
-else
-TOOLCHAIN_EXTERNAL_SYNOPSYS_CORE = archs
-endif
-ifeq ($(BR2_arcle),y)
-TOOLCHAIN_EXTERNAL_SYNOPSYS_ENDIANESS = le
-else
-TOOLCHAIN_EXTERNAL_SYNOPSYS_ENDIANESS = be
-endif
-TOOLCHAIN_EXTERNAL_SOURCE = arc_gnu_2014.12_prebuilt_uclibc_$(TOOLCHAIN_EXTERNAL_SYNOPSYS_ENDIANESS)_$(TOOLCHAIN_EXTERNAL_SYNOPSYS_CORE)_linux_install.tar.gz
-else
-# Custom toolchain
-TOOLCHAIN_EXTERNAL_SITE = $(patsubst %/,%,$(dir $(call qstrip,$(BR2_TOOLCHAIN_EXTERNAL_URL))))
-TOOLCHAIN_EXTERNAL_SOURCE = $(notdir $(call qstrip,$(BR2_TOOLCHAIN_EXTERNAL_URL)))
-# We can't check hashes for custom downloaded toolchains
-BR_NO_CHECK_HASH_FOR += $(TOOLCHAIN_EXTERNAL_SOURCE)
-endif
-
-# Some toolchain vendors have a regular file naming pattern.
-# For them, mass-define _ACTUAL_SOURCE_TARBALL based _SITE.
-ifneq ($(findstring sourcery.mentor.com/public/gnu_toolchain,$(TOOLCHAIN_EXTERNAL_SITE)),)
-TOOLCHAIN_EXTERNAL_ACTUAL_SOURCE_TARBALL ?= \
-	$(subst -i686-pc-linux-gnu.tar.bz2,.src.tar.bz2,$(subst -i686-pc-linux-gnu-i386-linux.tar.bz2,-i686-pc-linux-gnu.src.tar.bz2,$(TOOLCHAIN_EXTERNAL_SOURCE)))
-endif
-
-# In fact, we don't need to download the toolchain, since it is already
-# available on the system, so force the site and source to be empty so
-# that nothing will be downloaded/extracted.
-ifeq ($(BR2_TOOLCHAIN_EXTERNAL_PREINSTALLED),y)
-TOOLCHAIN_EXTERNAL_SITE =
-TOOLCHAIN_EXTERNAL_SOURCE =
-endif
-
-TOOLCHAIN_EXTERNAL_ADD_TOOLCHAIN_DEPENDENCY = NO
-
-TOOLCHAIN_EXTERNAL_INSTALL_STAGING = YES
-
-# Normal handling of downloaded toolchain tarball extraction.
-ifeq ($(BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD),y)
-TOOLCHAIN_EXTERNAL_EXCLUDES = usr/lib/locale/*
-
-# As a regular package, the toolchain gets extracted in $(@D), but
-# since it's actually a fairly special package, we need it to be moved
-# into TOOLCHAIN_EXTERNAL_DOWNLOAD_INSTALL_DIR.
-define TOOLCHAIN_EXTERNAL_MOVE
-	rm -rf $(TOOLCHAIN_EXTERNAL_DOWNLOAD_INSTALL_DIR)
-	mkdir -p $(TOOLCHAIN_EXTERNAL_DOWNLOAD_INSTALL_DIR)
-	mv $(@D)/* $(TOOLCHAIN_EXTERNAL_DOWNLOAD_INSTALL_DIR)/
+#
+# The following functions creates the symbolic links needed to get the
+# cross-compilation tools visible in $(HOST_DIR)/usr/bin. Some of
+# links are done directly to the corresponding tool in the external
+# toolchain installation directory, while some other links are done to
+# the toolchain wrapper (preprocessor, C, C++ and Fortran compiler)
+#
+# We skip gdb symlink when we are building our own gdb to prevent two
+# gdb's in $(HOST_DIR)/usr/bin.
+#
+# The LTO support in gcc creates wrappers for ar, ranlib and nm which load
+# the lto plugin. These wrappers are called *-gcc-ar, *-gcc-ranlib, and
+# *-gcc-nm and should be used instead of the real programs when -flto is
+# used. However, we should not add the toolchain wrapper for them, and they
+# match the *cc-* pattern. Therefore, an additional case is added for *-ar,
+# *-ranlib and *-nm.
+#
+# $1 toolchain CROSS
+define TOOLCHAIN_EXTERNAL_INSTALL_WRAPPER
+	$(Q)cd $(HOST_DIR)/usr/bin; \
+	for i in $(1)*; do \
+		base=$${i##*/}; \
+		case "$$base" in \
+		*-ar|*-ranlib|*-nm) \
+			ln -sf $$(echo $$i | sed 's%^$(HOST_DIR)%../..%') .; \
+			;; \
+		*cc|*cc-*|*++|*++-*|*cpp|*-gfortran) \
+			ln -sf toolchain-wrapper $$base; \
+			;; \
+		*gdb|*gdbtui) \
+			if test "$(BR2_PACKAGE_HOST_GDB)" != "y"; then \
+				ln -sf $$(echo $$i | sed 's%^$(HOST_DIR)%../..%') .; \
+			fi \
+			;; \
+		*) \
+			ln -sf $$(echo $$i | sed 's%^$(HOST_DIR)%../..%') .; \
+			;; \
+		esac; \
+	done
 endef
-TOOLCHAIN_EXTERNAL_POST_EXTRACT_HOOKS += \
-	TOOLCHAIN_EXTERNAL_MOVE
-endif
 
-# Returns the location of the libc.a file for the given compiler + flags
-define toolchain_find_libc_a
-$$(readlink -f $$(LANG=C $(1) -print-file-name=libc.a))
-endef
+# Various utility functions used by the external toolchain package
+# infrastructure. Those functions are mainly responsible for:
+#
+#   - installation the toolchain libraries to $(TARGET_DIR)
+#   - copying the toolchain sysroot to $(STAGING_DIR)
+#   - installing a gdbinit file
+#
+# Details about sysroot directory selection.
+#
+# To find the sysroot directory, we use the trick of looking for the
+# 'libc.a' file with the -print-file-name gcc option, and then
+# mangling the path to find the base directory of the sysroot.
+#
+# Note that we do not use the -print-sysroot option, because it is
+# only available since gcc 4.4.x, and we only recently dropped support
+# for 4.2.x and 4.3.x.
+#
+# When doing this, we don't pass any option to gcc that could select a
+# multilib variant (such as -march) as we want the "main" sysroot,
+# which contains all variants of the C library in the case of multilib
+# toolchains. We use the TARGET_CC_NO_SYSROOT variable, which is the
+# path of the cross-compiler, without the --sysroot=$(STAGING_DIR),
+# since what we want to find is the location of the original toolchain
+# sysroot. This "main" sysroot directory is stored in SYSROOT_DIR.
+#
+# Then, multilib toolchains are a little bit more complicated, since
+# they in fact have multiple sysroots, one for each variant supported
+# by the toolchain. So we need to find the particular sysroot we're
+# interested in.
+#
+# To do so, we ask the compiler where its sysroot is by passing all
+# flags (including -march and al.), except the --sysroot flag since we
+# want to the compiler to tell us where its original sysroot
+# is. ARCH_SUBDIR will contain the subdirectory, in the main
+# SYSROOT_DIR, that corresponds to the selected architecture
+# variant. ARCH_SYSROOT_DIR will contain the full path to this
+# location.
+#
+# One might wonder why we don't just bother with ARCH_SYSROOT_DIR. The
+# fact is that in multilib toolchains, the header files are often only
+# present in the main sysroot, and only the libraries are available in
+# each variant-specific sysroot directory.
 
-# Returns the sysroot location for the given compiler + flags. We need
-# to handle cases where libc.a is in:
+# toolchain_find_sysroot returns the sysroot location for the given
+# compiler + flags. We need to handle cases where libc.a is in:
 #
 #  - lib/
 #  - usr/lib/
@@ -494,88 +278,9 @@ define toolchain_find_libdir
 $$(printf $(call toolchain_find_libc_a,$(1)) | sed -r -e 's:.*/(usr/)?(lib(32|64)?([^/]*)?)/([^/]*/)?libc.a:\2:')
 endef
 
-# Checks for an already installed toolchain: check the toolchain
-# location, check that it is usable, and then verify that it
-# matches the configuration provided in Buildroot: ABI, C++ support,
-# kernel headers version, type of C library and all C library features.
-define TOOLCHAIN_EXTERNAL_CONFIGURE_CMDS
-	$(Q)$(call check_cross_compiler_exists,$(TOOLCHAIN_EXTERNAL_CC))
-	$(Q)$(call check_unusable_toolchain,$(TOOLCHAIN_EXTERNAL_CC))
-	$(Q)SYSROOT_DIR="$(call toolchain_find_sysroot,$(TOOLCHAIN_EXTERNAL_CC))" ; \
-	$(call check_kernel_headers_version,\
-		$(call toolchain_find_sysroot,$(TOOLCHAIN_EXTERNAL_CC)),\
-		$(call qstrip,$(BR2_TOOLCHAIN_HEADERS_AT_LEAST))); \
-	$(call check_gcc_version,$(TOOLCHAIN_EXTERNAL_CC),\
-		$(call qstrip,$(BR2_TOOLCHAIN_GCC_AT_LEAST))); \
-	if test "$(BR2_arm)" = "y" ; then \
-		$(call check_arm_abi,\
-			"$(TOOLCHAIN_EXTERNAL_CC) $(TOOLCHAIN_EXTERNAL_CFLAGS)",\
-			$(TOOLCHAIN_EXTERNAL_READELF)) ; \
-	fi ; \
-	if test "$(BR2_INSTALL_LIBSTDCPP)" = "y" ; then \
-		$(call check_cplusplus,$(TOOLCHAIN_EXTERNAL_CXX)) ; \
-	fi ; \
-	if test "$(BR2_TOOLCHAIN_HAS_FORTRAN)" = "y" ; then \
-		$(call check_fortran,$(TOOLCHAIN_EXTERNAL_FC)) ; \
-	fi ; \
-	if test "$(BR2_TOOLCHAIN_EXTERNAL_UCLIBC)" = "y" ; then \
-		$(call check_uclibc,$${SYSROOT_DIR}) ; \
-	elif test "$(BR2_TOOLCHAIN_EXTERNAL_MUSL)" = "y" ; then \
-		$(call check_musl,$${SYSROOT_DIR}) ; \
-	else \
-		$(call check_glibc,$${SYSROOT_DIR}) ; \
-	fi
-	$(Q)$(call check_toolchain_ssp,$(TOOLCHAIN_EXTERNAL_CC))
-endef
-
-# With the musl C library, the libc.so library directly plays the role
-# of the dynamic library loader. We just need to create a symbolic
-# link to libc.so with the appropriate name.
-ifeq ($(BR2_TOOLCHAIN_EXTERNAL_MUSL),y)
-ifeq ($(BR2_i386),y)
-MUSL_ARCH = i386
-else ifeq ($(BR2_ARM_EABIHF),y)
-MUSL_ARCH = armhf
-else ifeq ($(BR2_mipsel):$(BR2_SOFT_FLOAT),y:y)
-MUSL_ARCH = mipsel-sf
-else ifeq ($(BR2_sh),y)
-MUSL_ARCH = sh
-else
-MUSL_ARCH = $(ARCH)
-endif
-define TOOLCHAIN_EXTERNAL_MUSL_LD_LINK
-	ln -sf libc.so $(TARGET_DIR)/lib/ld-musl-$(MUSL_ARCH).so.1
-endef
-TOOLCHAIN_EXTERNAL_POST_INSTALL_STAGING_HOOKS += TOOLCHAIN_EXTERNAL_MUSL_LD_LINK
-endif
-
-# Create a symlink from (usr/)$(ARCH_LIB_DIR) to lib.
-# Note: the skeleton package additionally creates lib32->lib or lib64->lib
-# (as appropriate)
-#
-# $1: destination directory (TARGET_DIR / STAGING_DIR)
-# $2: toolchain CC
-# $3: toolchain CFLAGS
-create_lib_symlinks = \
-       $(Q)DESTDIR="$(strip $1)" ; \
-       TOOLCHAIN_CC="$(strip $2)" ; \
-       TOOLCHAIN_CFLAGS="$(strip $3)" ; \
-       ARCH_LIB_DIR="$(call toolchain_find_libdir,$${TOOLCHAIN_CC} $${TOOLCHAIN_CFLAGS})" ; \
-       if [ ! -e "$${DESTDIR}/$${ARCH_LIB_DIR}" -a ! -e "$${DESTDIR}/usr/$${ARCH_LIB_DIR}" ]; then \
-               ln -snf lib "$${DESTDIR}/$${ARCH_LIB_DIR}" ; \
-               ln -snf lib "$${DESTDIR}/usr/$${ARCH_LIB_DIR}" ; \
-       fi
-
-# $1: toolchain CC
-# $2: toolchain CFLAGS
-define TOOLCHAIN_EXTERNAL_CREATE_STAGING_LIB_SYMLINK
-       $(call create_lib_symlinks,$(STAGING_DIR),$(1),$(2))
-endef
-
-# $1: toolchain CC
-# $2: toolchain CFLAGS
-define TOOLCHAIN_EXTERNAL_CREATE_TARGET_LIB_SYMLINK
-       $(call create_lib_symlinks,$(TARGET_DIR),$(1),$(2))
+# Returns the location of the libc.a file for the given compiler + flags
+define toolchain_find_libc_a
+$$(readlink -f $$(LANG=C $(1) -print-file-name=libc.a))
 endef
 
 # Integration of the toolchain into Buildroot: find the main sysroot
@@ -625,10 +330,6 @@ endef
 #                       our sysroot, and the directory will also be
 #                       considered when searching libraries for copy
 #                       to the target filesystem.
-#
-# Please be very careful to check the major toolchain sources:
-# Buildroot, Crosstool-NG, CodeSourcery and Linaro
-# before doing any modification on the below logic.
 
 # $1: toolchain LIBS
 ifeq ($(BR2_STATIC_LIBS),)
@@ -691,6 +392,84 @@ define TOOLCHAIN_EXTERNAL_INSTALL_SYSROOT_LIBS
 	$(call copy_toolchain_sysroot,$${SYSROOT_DIR},$${ARCH_SYSROOT_DIR},$${ARCH_SUBDIR},$${ARCH_LIB_DIR},$${SUPPORT_LIB_DIR})
 endef
 
+# Create a symlink from (usr/)$(ARCH_LIB_DIR) to lib.
+# Note: the skeleton package additionally creates lib32->lib or lib64->lib
+# (as appropriate)
+#
+# $1: destination directory (TARGET_DIR / STAGING_DIR)
+# $2: toolchain CC
+# $3: toolchain CFLAGS
+create_lib_symlinks = \
+       $(Q)DESTDIR="$(strip $1)" ; \
+       TOOLCHAIN_CC="$(strip $2)" ; \
+       TOOLCHAIN_CFLAGS="$(strip $3)" ; \
+       ARCH_LIB_DIR="$(call toolchain_find_libdir,$${TOOLCHAIN_CC} $${TOOLCHAIN_CFLAGS})" ; \
+       if [ ! -e "$${DESTDIR}/$${ARCH_LIB_DIR}" -a ! -e "$${DESTDIR}/usr/$${ARCH_LIB_DIR}" ]; then \
+               ln -snf lib "$${DESTDIR}/$${ARCH_LIB_DIR}" ; \
+               ln -snf lib "$${DESTDIR}/usr/$${ARCH_LIB_DIR}" ; \
+       fi
+
+# $1: toolchain CC
+# $2: toolchain CFLAGS
+define TOOLCHAIN_EXTERNAL_CREATE_STAGING_LIB_SYMLINK
+       $(call create_lib_symlinks,$(STAGING_DIR),$(1),$(2))
+endef
+
+# $1: toolchain CC
+# $2: toolchain CFLAGS
+define TOOLCHAIN_EXTERNAL_CREATE_TARGET_LIB_SYMLINK
+       $(call create_lib_symlinks,$(TARGET_DIR),$(1),$(2))
+endef
+
+#
+# Generate gdbinit file for use with Buildroot
+#
+define TOOLCHAIN_EXTERNAL_INSTALL_GDBINIT
+	$(Q)if test -f $(TARGET_CROSS)gdb ; then \
+		$(call MESSAGE,"Installing gdbinit"); \
+		$(call gen_gdbinit_file) ; \
+	fi
+endef
+
+# Various utility functions used by the external toolchain based on musl.
+
+# musl does not provide an implementation for sys/queue.h or sys/cdefs.h.
+# So, add the musl-compat-headers package that will install those files,
+# into the staging directory:
+#   sys/queue.h:  header from NetBSD
+#   sys/cdefs.h:  minimalist header bundled in Buildroot
+ifeq ($(BR2_TOOLCHAIN_USES_MUSL),y)
+TOOLCHAIN_EXTERNAL_DEPENDENCIES += musl-compat-headers
+endif
+
+# With the musl C library, the libc.so library directly plays the role
+# of the dynamic library loader. We just need to create a symbolic
+# link to libc.so with the appropriate name.
+ifeq ($(BR2_TOOLCHAIN_EXTERNAL_MUSL),y)
+ifeq ($(BR2_i386),y)
+MUSL_ARCH = i386
+else ifeq ($(BR2_ARM_EABIHF),y)
+MUSL_ARCH = armhf
+else ifeq ($(BR2_mipsel):$(BR2_SOFT_FLOAT),y:y)
+MUSL_ARCH = mipsel-sf
+else ifeq ($(BR2_sh),y)
+MUSL_ARCH = sh
+else
+MUSL_ARCH = $(ARCH)
+endif
+define TOOLCHAIN_EXTERNAL_MUSL_LD_LINK
+	ln -sf libc.so $(TARGET_DIR)/lib/ld-musl-$(MUSL_ARCH).so.1
+endef
+TOOLCHAIN_EXTERNAL_POST_INSTALL_STAGING_HOOKS += TOOLCHAIN_EXTERNAL_MUSL_LD_LINK
+endif
+
+#
+# Various functions used by the external toolchain package
+# infrastructure to handle the Blackfin specific
+# BR2_BFIN_INSTALL_FDPIC_SHARED and BR2_BFIN_INSTALL_FLAT_SHARED
+# options.
+#
+
 # Special installation target used on the Blackfin architecture when
 # FDPIC is not the primary binary format being used, but the user has
 # nonetheless requested the installation of the FDPIC libraries to the
@@ -712,6 +491,7 @@ define TOOLCHAIN_EXTERNAL_INSTALL_SYSROOT_LIBS_BFIN_FDPIC
 	fi ; \
 	$(call copy_toolchain_sysroot,$${FDPIC_SYSROOT_DIR},$${FDPIC_SYSROOT_DIR},,$${FDPIC_LIB_DIR},$${FDPIC_SUPPORT_LIB_DIR})
 endef
+
 # $1: toolchain LIBS
 define TOOLCHAIN_EXTERNAL_INSTALL_TARGET_BFIN_FDPIC
 	$(Q)$(call MESSAGE,"Install external toolchain FDPIC libraries to target...")
@@ -740,49 +520,6 @@ define TOOLCHAIN_EXTERNAL_INSTALL_TARGET_BFIN_FLAT
 endef
 endif
 
-# Build toolchain wrapper for preprocessor, C, C++ and Fortran compilers
-# and setup symlinks for everything else. Skip gdb symlink when we are
-# building our own gdb to prevent two gdb's in output/host/usr/bin.
-# The LTO support in gcc creates wrappers for ar, ranlib and nm which load
-# the lto plugin. These wrappers are called *-gcc-ar, *-gcc-ranlib, and
-# *-gcc-nm and should be used instead of the real programs when -flto is
-# used. However, we should not add the toolchain wrapper for them, and they
-# match the *cc-* pattern. Therefore, an additional case is added for *-ar,
-# *-ranlib and *-nm.
-# $1 toolchain CROSS
-define TOOLCHAIN_EXTERNAL_INSTALL_WRAPPER
-	$(Q)cd $(HOST_DIR)/usr/bin; \
-	for i in $(1)*; do \
-		base=$${i##*/}; \
-		case "$$base" in \
-		*-ar|*-ranlib|*-nm) \
-			ln -sf $$(echo $$i | sed 's%^$(HOST_DIR)%../..%') .; \
-			;; \
-		*cc|*cc-*|*++|*++-*|*cpp|*-gfortran) \
-			ln -sf toolchain-wrapper $$base; \
-			;; \
-		*gdb|*gdbtui) \
-			if test "$(BR2_PACKAGE_HOST_GDB)" != "y"; then \
-				ln -sf $$(echo $$i | sed 's%^$(HOST_DIR)%../..%') .; \
-			fi \
-			;; \
-		*) \
-			ln -sf $$(echo $$i | sed 's%^$(HOST_DIR)%../..%') .; \
-			;; \
-		esac; \
-	done
-endef
-
-#
-# Generate gdbinit file for use with Buildroot
-#
-define TOOLCHAIN_EXTERNAL_INSTALL_GDBINIT
-	$(Q)if test -f $(TARGET_CROSS)gdb ; then \
-		$(call MESSAGE,"Installing gdbinit"); \
-		$(gen_gdbinit_file); \
-	fi
-endef
-
 # uClibc-ng dynamic loader is called ld-uClibc.so.1, but gcc is not
 # patched specifically for uClibc-ng, so it continues to generate
 # binaries that expect the dynamic loader to be named ld-uClibc.so.0,
@@ -797,28 +534,155 @@ define TOOLCHAIN_EXTERNAL_FIXUP_UCLIBCNG_LDSO
 	fi
 endef
 
-TOOLCHAIN_EXTERNAL_BUILD_CMDS = $(TOOLCHAIN_WRAPPER_BUILD)
+define inner-toolchain-external-package
+
+$(2)_INSTALL_STAGING = YES
+$(2)_ADD_TOOLCHAIN_DEPENDENCY = NO
+
+$(2)_DOWNLOAD_INSTALL_DIR = $(HOST_DIR)/opt/ext-toolchain
 
-define TOOLCHAIN_EXTERNAL_INSTALL_STAGING_CMDS
-	$(TOOLCHAIN_WRAPPER_INSTALL)
-	$(call TOOLCHAIN_EXTERNAL_CREATE_STAGING_LIB_SYMLINK,$(TOOLCHAIN_EXTERNAL_CC),$(TOOLCHAIN_EXTERNAL_CFLAGS))
-	$(call TOOLCHAIN_EXTERNAL_INSTALL_SYSROOT_LIBS,$(TOOLCHAIN_EXTERNAL_CC),$(TOOLCHAIN_EXTERNAL_CFLAGS))
-	$(call TOOLCHAIN_EXTERNAL_INSTALL_SYSROOT_LIBS_BFIN_FDPIC,$(TOOLCHAIN_EXTERNAL_CC),$(TOOLCHAIN_EXTERNAL_CFLAGS))
-	$(call TOOLCHAIN_EXTERNAL_INSTALL_WRAPPER,$(TOOLCHAIN_EXTERNAL_CROSS))
-	$(TOOLCHAIN_EXTERNAL_INSTALL_GDBINIT)
+# In fact, we don't need to download the toolchain, since it is already
+# available on the system, so force the site and source to be empty so
+# that nothing will be downloaded/extracted.
+ifeq ($$(BR2_TOOLCHAIN_EXTERNAL_PREINSTALLED),y)
+$(2)_SITE =
+$(2)_SOURCE =
+endif
+
+ifeq ($$(BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD),y)
+$(2)_INSTALL_DIR = $$($(2)_DOWNLOAD_INSTALL_DIR)
+else
+$(2)_INSTALL_DIR = $$(call qstrip,$$(BR2_TOOLCHAIN_EXTERNAL_PATH))
+endif
+
+ifeq ($$($(2)_INSTALL_DIR),)
+ifneq ($$($(2)_PREFIX),)
+$(2)_BIN = $$(shell dirname $$(shell which $$($(2)_PREFIX)-gcc))
+endif
+else
+$(2)_BIN = $$($(2)_INSTALL_DIR)/$$($(2)_SUBDIR)/bin
+endif
+
+$(2)_TOOLCHAIN_WRAPPER_ARGS = $$(TOOLCHAIN_EXTERNAL_COMMON_WRAPPER_ARGS)
+
+ifeq ($$(filter $$(HOST_DIR)/%,$$($(2)_BIN)),)
+# $(2)_BIN points outside HOST_DIR => absolute path
+$(2)_TOOLCHAIN_WRAPPER_ARGS += \
+	-DBR_CROSS_PATH_ABS='"$$($(2)_BIN)"'
+else
+# $(2)_BIN points inside HOST_DIR => relative path
+$(2)_TOOLCHAIN_WRAPPER_ARGS += \
+	-DBR_CROSS_PATH_REL='"$$($(2)_BIN:$$(HOST_DIR)/%=%)"'
+endif
+
+# If this is a buildroot toolchain, it already has a wrapper which we want to
+# bypass. Since this is only evaluated after it has been extracted, we can use
+# $(wildcard ...) here.
+$(2)_SUFFIX = $$(if $$(wildcard $$($(2)_BIN)/*.br_real),.br_real)
+$(2)_TOOLCHAIN_WRAPPER_ARGS += -DBR_CROSS_PATH_SUFFIX='"$$($(2)_SUFFIX)"'
+
+$(2)_CROSS = $$($(2)_BIN)/$$($(2)_PREFIX)-
+$(2)_CC = $$($(2)_CROSS)gcc$$($(2)_SUFFIX)
+$(2)_CXX = $$($(2)_CROSS)g++$$($(2)_SUFFIX)
+$(2)_FC = $$($(2)_CROSS)gfortran$$($(2)_SUFFIX)
+$(2)_READELF = $$($(2)_CROSS)readelf$$($(2)_SUFFIX)
+
+$(2)_CFLAGS += $$(TOOLCHAIN_EXTERNAL_CFLAGS)
+$(2)_LIBS += $$(TOOLCHAIN_EXTERNAL_LIBS)
+
+# Normal handling of downloaded toolchain tarball extraction.
+ifeq ($$(BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD),y)
+$(2)_EXCLUDES = usr/lib/locale/*
+
+# As a regular package, the toolchain gets extracted in $(@D), but
+# since it's actually a fairly special package, we need it to be moved
+# into $(2)_DOWNLOAD_INSTALL_DIR.
+define $(2)_MOVE
+	rm -rf $$($(2)_DOWNLOAD_INSTALL_DIR)
+	mkdir -p $$($(2)_DOWNLOAD_INSTALL_DIR)
+	mv $$(@D)/* $$($(2)_DOWNLOAD_INSTALL_DIR)/
 endef
+$(2)_POST_EXTRACT_HOOKS += $(2)_MOVE
+endif
 
+ifndef $(2)_CONFIGURE_CMDS
+# Checks for an already installed toolchain: check the toolchain
+# location, check that it supports sysroot, and then verify that it
+# matches the configuration provided in Buildroot: ABI, C++ support,
+# kernel headers version, type of C library and all C library features.
+define $(2)_CONFIGURE_CMDS
+	$(Q)$$(call check_cross_compiler_exists,$$($(2)_CC))
+	$(Q)$$(call check_unusable_toolchain,$$($(2)_CC))
+	$(Q)SYSROOT_DIR="$$(call toolchain_find_sysroot,$$($(2)_CC))" ; \
+	$$(call check_kernel_headers_version,\
+		$$(call toolchain_find_sysroot,$$($(2)_CC)),\
+		$$(call qstrip,$$(BR2_TOOLCHAIN_HEADERS_AT_LEAST))); \
+	$$(call check_gcc_version,$$($(2)_CC),\
+		$$(call qstrip,$$(BR2_TOOLCHAIN_GCC_AT_LEAST))); \
+	if test "$(BR2_arm)" = "y" ; then \
+		$$(call check_arm_abi,\
+			"$$($(2)_CC) $$($(2)_CFLAGS)",\
+			$$($(2)_READELF)) ; \
+	fi ; \
+	if test "$$(BR2_INSTALL_LIBSTDCPP)" = "y" ; then \
+		$$(call check_cplusplus,$$($(2)_CXX)) ; \
+	fi ; \
+	if test "$$(BR2_TOOLCHAIN_HAS_FORTRAN)" = "y" ; then \
+		$$(call check_fortran,$$($(2)_FC)) ; \
+	fi ; \
+	if test "$$(BR2_TOOLCHAIN_EXTERNAL_UCLIBC)" = "y" ; then \
+		$$(call check_uclibc,$$$${SYSROOT_DIR}) ; \
+	elif test "$$(BR2_TOOLCHAIN_EXTERNAL_MUSL)" = "y" ; then \
+		$$(call check_musl,$$$${SYSROOT_DIR}) ; \
+	else \
+		$$(call check_glibc,$$$${SYSROOT_DIR}) ; \
+	fi
+	$(Q)$$(call check_toolchain_ssp,$$($(2)_CC))
+endef
+endif
+
+ifndef $(2)_BUILD_CMDS
+define $(2)_BUILD_CMDS
+	$$(TOOLCHAIN_WRAPPER_BUILD)
+endef
+endif
+
+ifndef $(2)_INSTALL_STAGING_CMDS
+define $(2)_INSTALL_STAGING_CMDS
+	$$(TOOLCHAIN_WRAPPER_INSTALL)
+	$$(call TOOLCHAIN_EXTERNAL_CREATE_STAGING_LIB_SYMLINK,$$($(2)_CC),$$($(2)_CFLAGS))
+	$$(call TOOLCHAIN_EXTERNAL_INSTALL_SYSROOT_LIBS,$$($(2)_CC),$$($(2)_CFLAGS))
+	$$(call TOOLCHAIN_EXTERNAL_INSTALL_SYSROOT_LIBS_BFIN_FDPIC,$$($(2)_CC),$$($(2)_CFLAGS))
+	$$(call TOOLCHAIN_EXTERNAL_INSTALL_WRAPPER,$$($(2)_CROSS))
+	$$(TOOLCHAIN_EXTERNAL_INSTALL_GDBINIT)
+endef
+endif
+
+ifndef $(2)_INSTALL_TARGET_CMDS
 # Even though we're installing things in both the staging, the host
 # and the target directory, we do everything within the
 # install-staging step, arbitrarily.
-define TOOLCHAIN_EXTERNAL_INSTALL_TARGET_CMDS
-	$(call TOOLCHAIN_EXTERNAL_CREATE_TARGET_LIB_SYMLINK,$(TOOLCHAIN_EXTERNAL_CC),$(TOOLCHAIN_EXTERNAL_CFLAGS))
-	$(call TOOLCHAIN_EXTERNAL_INSTALL_TARGET_LIBS,$(TOOLCHAIN_EXTERNAL_LIBS))
-	$(call TOOLCHAIN_EXTERNAL_INSTALL_TARGET_GDBSERVER,$(TOOLCHAIN_EXTERNAL_CC),$(TOOLCHAIN_EXTERNAL_CFLAGS),$(TOOLCHAIN_EXTERNAL_INSTALL_DIR))
-	$(call TOOLCHAIN_EXTERNAL_INSTALL_TARGET_BFIN_FDPIC,$(TOOLCHAIN_EXTERNAL_LIBS))
-	$(call TOOLCHAIN_EXTERNAL_INSTALL_TARGET_BFIN_FLAT,$(TOOLCHAIN_EXTERNAL_CC),$(TOOLCHAIN_EXTERNAL_CFLAGS))
-	$(TOOLCHAIN_EXTERNAL_FIXUP_UCLIBCNG_LDSO)
+define $(2)_INSTALL_TARGET_CMDS
+	$$(call TOOLCHAIN_EXTERNAL_CREATE_TARGET_LIB_SYMLINK,$$($(2)_CC),$$($(2)_CFLAGS))
+	$$(call TOOLCHAIN_EXTERNAL_INSTALL_TARGET_LIBS,$$($(2)_LIBS))
+	$$(call TOOLCHAIN_EXTERNAL_INSTALL_TARGET_GDBSERVER,$$($(2)_CC),$$($(2)_CFLAGS),$$($(2)_INSTALL_DIR))
+	$$(call TOOLCHAIN_EXTERNAL_INSTALL_TARGET_BFIN_FDPIC,$$($(2)_LIBS))
+	$$(call TOOLCHAIN_EXTERNAL_INSTALL_TARGET_BFIN_FLAT,$$($(2)_CC),$$($(2)_CFLAGS))
+	$$(TOOLCHAIN_EXTERNAL_FIXUP_UCLIBCNG_LDSO)
+endef
+endif
+
+# Call the generic package infrastructure to generate the necessary
+# make targets
+$(call inner-generic-package,$(1),$(2),$(3),$(4))
+
 endef
 
-$(eval $(generic-package))
+toolchain-external-package = $(call inner-toolchain-external-package,$(pkgname),$(call UPPERCASE,$(pkgname)),$(call UPPERCASE,$(pkgname)),target)
 
+# Expose TOOLCHAIN_EXTERNAL_PREFIX as a global variable that can be
+# used by the rest of Buildroot.
+ifeq ($(BR2_TOOLCHAIN_EXTERNAL),y)
+TOOLCHAIN_EXTERNAL_PREFIX = \
+	$($(call UPPERCASE,$(call qstrip,$(BR2_PACKAGE_PROVIDES_TOOLCHAIN_EXTERNAL)))_PREFIX)
+endif
diff --git a/toolchain/toolchain-external/toolchain-external.hash b/toolchain/toolchain-external/toolchain-external.hash
deleted file mode 100644
index 41c2ab3..0000000
--- a/toolchain/toolchain-external/toolchain-external.hash
+++ /dev/null
@@ -1,67 +0,0 @@
-######################################
-# Next hashes are all locally computed
-
-# Blackfin toolchains from Analog Devices
-sha256 e424e90d8481d942a40266d78d1488726561fed3ec38403094f98055e61889d0  blackfin-toolchain-2014R1-RC2.i386.tar.bz2
-sha256 c65b1b4b918d5185349d62a3b7bf43b4b21e1175c52598ec047ca56b3f11d857  blackfin-toolchain-uclibc-full-2014R1-RC2.i386.tar.bz2
-
-# Mentor's Sourcery CodeBench Lite toolchains
-# ARM
-sha256 39ee0e789034334ecc89af94e838e3a4815400ac5ff980f808f466b04778532e  arm-2014.05-29-arm-none-linux-gnueabi-i686-pc-linux-gnu.tar.bz2
-sha256 e16a5b1e41d7ff1e74161f9405182001bc8d1360d89564e73911032e6966cc0d  arm-2014.05-29-arm-none-linux-gnueabi.src.tar.bz2
-# NiosII
-sha256 750639290744adda931c81fa2cd2ffc2bde972488047824dcfaa53c42562191d  sourceryg++-2016.05-10-nios2-linux-gnu-i686-pc-linux-gnu.tar.bz2
-sha256 3dc1c2685c0472059547dd7becb5dc991541b8176af39fa7aa5f601d38b9879a  sourceryg++-2016.05-10-nios2-linux-gnu.src.tar.bz2
-# SuperH
-sha256 59d6766fde244931aa52db01433d5acd051998762a931121c5fc109536a1a802  renesas-2012.09-61-sh-linux-gnu-i686-pc-linux-gnu.tar.bz2
-sha256 e2e58c10e52395d5d35157e35f85233f713c6f9223a652dfc56194cfd2eed004  renesas-2012.09-61-sh-linux-gnu.src.tar.bz2
-# x86
-sha256 ea804cf02014369da52abc4f64e91e96bde2dd2230aca96109459013d4545458  ia32-2012.09-62-i686-pc-linux-gnu-i386-linux.tar.bz2
-sha256 1a9519e415a1e6892c760bf21f7e98f3a633a9d1c5bb8781a96d338e4dd62717  ia32-2012.09-62-i686-pc-linux-gnu.src.tar.bz2
-# AMD64
-sha256 3c31206c8b9277f409ee00e4777ba82dfa6da2a4ca0926501cd5fb6bbd1b407e  amd-2015.11-139-x86_64-amd-linux-gnu-i686-pc-linux-gnu.tar.bz2
-sha256 0b673f5035f97d5d03c31272cddab0f117d39ad76a5ad2a3bc98c156571527de  amd-2015.11-139-x86_64-amd-linux-gnu.src.tar.bz2
-# Aarch64
-sha256 405aada821146755c5f2df566375c2a682456d6b8451ee47b88cf1a52b093676  aarch64-amd-2014.11-95-aarch64-amd-linux-gnu-i686-pc-linux-gnu.tar.bz2
-sha256 3f50dd6ee433eb5b6992a1071b988e50379a738f54f58722bc60081613764716  aarch64-amd-2014.11-95-aarch64-amd-linux-gnu.src.tar.bz2
-# MIPS
-sha256 d354447c4c5160439dafd5464fa3a0266dd41e79f973477238e4f0215a6b5397  mips-2016.05-8-mips-linux-gnu-i686-pc-linux-gnu.tar.bz2
-sha256 2658e55d5b71bba25d6f77e868e18b200ea5f75c8add7ed3a9266e716d9adfff  mips-2016.05-8-mips-linux-gnu.src.tar.bz2
-
-# ARM toolchains from Texas Instrument's Arago project
-# There is one source file that covers both binary distributions.
-sha256 f2febf3b3c565536461ad4405f1bcb835d75a6afb2a8bec958a1248cb4b81fc7  arago-2011.09-armv7a-linux-gnueabi-sdk.tar.bz2
-sha256 254af7d02eb3bcc8345c78e131700bc995d65b68232caaed21150a5fd1456070  arago-2011.09-armv5te-linux-gnueabi-sdk.tar.bz2
-sha256 25fbf0513ad7322b15cbaae964cafadcbb4c939f2708f57f40b8f9f2d601122b  arago-toolchain-2011.09-sources.tar.bz2
-
-# ARM and Aarch64 toolchains from Linaro
-sha256 f1421c580ce977226f4fefc9c409b3b423260cc65a6e9dc6da88bb3478a521a0  gcc-linaro-5.3.1-2016.05-i686_arm-linux-gnueabihf.tar.xz
-sha256 987941c9fffdf56ffcbe90e8984673c16648c477b537fcf43add22fa62f161cd  gcc-linaro-5.3.1-2016.05-x86_64_arm-linux-gnueabihf.tar.xz
-sha256 f6e9c0d3320760fe8f89e9ec3acdd7b4da7eff889c094b4a2acc286fd46f334f  gcc-linaro-5.3.1-2016.05-i686_armeb-linux-gnueabihf.tar.xz
-sha256 6cf41c8944be56279cc14992aa075174b7a4c5938502536266eaaeef048f9440  gcc-linaro-5.3.1-2016.05-x86_64_armeb-linux-gnueabihf.tar.xz
-sha256 d43227248f282a652da42322fcf4abfd3021f2a2f62e0cf6e242d82f55966ba9  gcc-linaro-5.3.1-2016.05-i686_aarch64-linux-gnu.tar.xz
-sha256 1941dcf6229d6706bcb89b7976d5d43d170efdd17c27d5fe1738e7ecf22adc37  gcc-linaro-5.3.1-2016.05-x86_64_aarch64-linux-gnu.tar.xz
-
-# Codescape toolchains from Imagination Technologies
-# From: http://codescape-mips-sdk.imgtec.com/components/toolchain/2016.05-03/downloads.html
-sha256 e3c1f292ac6a9f12480af431c85a7ed9dfa011a52fd62a50be3363ec6b9bc872  Codescape.GNU.Tools.Package.2016.05-03.for.MIPS.IMG.Linux.CentOS-5.x86.tar.gz
-sha256 10b8ab6d7c492abc19ecabafedc6bc5f12ff88107a3cb76dc452b3a9522d9c56  Codescape.GNU.Tools.Package.2016.05-03.for.MIPS.MTI.Linux.CentOS-5.x86.tar.gz
-
-# Synopsys DesignWare ARC toolchains
-sha256 1fa4ea2c8616623205f1c7beca02ea31b019099528a7433e5b020b0876b93bf3  arc_gnu_2014.12_prebuilt_uclibc_le_arc700_linux_install.tar.gz
-sha256 1080f07fcae2bfc176a3ea8d30b9ed8eaecab70fb786639d6ec70cae8322df10  arc_gnu_2014.12_prebuilt_uclibc_be_arc700_linux_install.tar.gz
-sha256 aaaf6facd1f60a3cd2a537154ea39cd7d70501c175e30e01a97e8df6cb8226c7  arc_gnu_2014.12_prebuilt_uclibc_le_archs_linux_install.tar.gz
-sha256 30711c5f15762764d4cd5ec1e6ced5b1fddd03aac41c424b0c4ec8a45d5d79cd  arc_gnu_2014.12_prebuilt_uclibc_be_archs_linux_install.tar.gz
-
-# Prebuilt musl toolchains from musl-cross
-sha256 e32c23d0b83639fc10ad06666ec086b66453b9be44415fe1a818c3c3b526dfb1  crossx86-armeb-linux-musleabi-1.1.12.tar.xz
-sha256 eb81bd5d6ada454c6e854b18bfa8dc801333782152166f6cab9fb7cd11692987  crossx86-arm-linux-musleabi-1.1.12.tar.xz
-sha256 a050da284ff22d291ae71dfc249ebdedb18334b8d626804760ce7d5963e392e6  crossx86-arm-linux-musleabihf-1.1.12.tar.xz
-sha256 18d07f5c8f4cfe373461cf21cf7b1bfefa820a37e96a69b68e0f315d528b4286  crossx86-i486-linux-musl-1.1.12.tar.xz
-sha256 1c1480c2618097e402fe804c1431fbd49b0d43520af81d4c1a695a2fa13a3922  crossx86-mipsel-linux-musl-1.1.12.tar.xz
-sha256 f0a8b3eb0566138ab3cc77bc09648be15bc325da974ec98b9e67f2fb82be3295  crossx86-mipsel-sf-linux-musl-1.1.12.tar.xz
-sha256 6a99989c3dff56776981f6760b2c54dcb9e4032be1d649968bb06c04f2e64177  crossx86-mips-linux-musl-1.1.12.tar.xz
-sha256 c082adc3e8b0750bb22ca82628524fd525fd77f534517ac5a66e7ac5a297ee6e  crossx86-powerpc-linux-musl-1.1.12.tar.xz
-sha256 8c6c9ebb54040e47947b4d3af6823d01fef2bb6ee81b18903c801030c066092b  crossx86-sh4eb-linux-musl-1.1.12.tar.xz
-sha256 ae9a0a5a60226aa086a56628cfd5c1d283c9dffdca37891d7e6adc2bd21ac2e0  crossx86-sh4-linux-musl-1.1.12.tar.xz
-sha256 27e0ea1043a58aebeadf1dacd67e47fd0b5c19fc36f42c9374e5fa3308df09c6  crossx86-x86_64-linux-musl-1.1.12.tar.xz
diff --git a/toolchain/toolchain-external/toolchain-external.mk b/toolchain/toolchain-external/toolchain-external.mk
index 6ae4bf5..5aae913 100644
--- a/toolchain/toolchain-external/toolchain-external.mk
+++ b/toolchain/toolchain-external/toolchain-external.mk
@@ -4,821 +4,8 @@
 #
 ################################################################################
 
-#
-# This package implements the support for external toolchains, i.e
-# toolchains that are available pre-built, ready to use. Such toolchain
-# may either be readily available on the Web (Linaro, Sourcery
-# CodeBench, from processor vendors) or may be built with tools like
-# Crosstool-NG or Buildroot itself. So far, we have tested this
-# with:
-#
-#  * Toolchains generated by Crosstool-NG
-#  * Toolchains generated by Buildroot
-#  * Toolchains provided by Linaro for the ARM and AArch64
-#    architectures
-#  * Sourcery CodeBench toolchains (from Mentor Graphics) for the ARM,
-#    MIPS, PowerPC, x86, x86_64 and NIOS 2 architectures. For the MIPS
-#    toolchain, the -muclibc variant isn't supported yet, only the
-#    default glibc-based variant is.
-#  * Analog Devices toolchains for the Blackfin architecture
-#  * Xilinx toolchains for the Microblaze architecture
-#  * Synopsys DesignWare toolchains for ARC cores
-#
-# The basic principle is the following
-#
-#  1. If the toolchain is not pre-installed, download and extract it
-#  in $(TOOLCHAIN_EXTERNAL_INSTALL_DIR). Otherwise,
-#  $(TOOLCHAIN_EXTERNAL_INSTALL_DIR) points to were the toolchain has
-#  already been installed by the user.
-#
-#  2. For all external toolchains, perform some checks on the
-#  conformity between the toolchain configuration described in the
-#  Buildroot menuconfig system, and the real configuration of the
-#  external toolchain. This is for example important to make sure that
-#  the Buildroot configuration system knows whether the toolchain
-#  supports RPC, IPv6, locales, large files, etc. Unfortunately, these
-#  things cannot be detected automatically, since the value of these
-#  options (such as BR2_TOOLCHAIN_HAS_NATIVE_RPC) are needed at
-#  configuration time because these options are used as dependencies
-#  for other options. And at configuration time, we are not able to
-#  retrieve the external toolchain configuration.
-#
-#  3. Copy the libraries needed at runtime to the target directory,
-#  $(TARGET_DIR). Obviously, things such as the C library, the dynamic
-#  loader and a few other utility libraries are needed if dynamic
-#  applications are to be executed on the target system.
-#
-#  4. Copy the libraries and headers to the staging directory. This
-#  will allow all further calls to gcc to be made using --sysroot
-#  $(STAGING_DIR), which greatly simplifies the compilation of the
-#  packages when using external toolchains. So in the end, only the
-#  cross-compiler binaries remains external, all libraries and headers
-#  are imported into the Buildroot tree.
-#
-#  5. Build a toolchain wrapper which executes the external toolchain
-#  with a number of arguments (sysroot/march/mtune/..) hardcoded,
-#  so we're sure the correct configuration is always used and the
-#  toolchain behaves similar to an internal toolchain.
-#  This toolchain wrapper and symlinks are installed into
-#  $(HOST_DIR)/usr/bin like for the internal toolchains, and the rest
-#  of Buildroot is handled identical for the 2 toolchain types.
-
-ifeq ($(BR2_TOOLCHAIN_EXTERNAL_GLIBC)$(BR2_TOOLCHAIN_EXTERNAL_UCLIBC),y)
-TOOLCHAIN_EXTERNAL_LIBS += libatomic.so.* libc.so.* libcrypt.so.* libdl.so.* libgcc_s.so.* libm.so.* libnsl.so.* libresolv.so.* librt.so.* libutil.so.*
-ifeq ($(BR2_TOOLCHAIN_EXTERNAL_GLIBC)$(BR2_ARM_EABIHF),yy)
-TOOLCHAIN_EXTERNAL_LIBS += ld-linux-armhf.so.*
-else
-TOOLCHAIN_EXTERNAL_LIBS += ld*.so.*
-endif
-ifeq ($(BR2_TOOLCHAIN_HAS_THREADS),y)
-TOOLCHAIN_EXTERNAL_LIBS += libpthread.so.*
-ifneq ($(BR2_PACKAGE_GDB)$(BR2_TOOLCHAIN_EXTERNAL_GDB_SERVER_COPY),)
-TOOLCHAIN_EXTERNAL_LIBS += libthread_db.so.*
-endif # gdbserver
-endif # ! no threads
-endif
-
-ifeq ($(BR2_TOOLCHAIN_EXTERNAL_GLIBC),y)
-TOOLCHAIN_EXTERNAL_LIBS += libnss_files.so.* libnss_dns.so.* libmvec.so.*
-endif
-
-ifeq ($(BR2_TOOLCHAIN_EXTERNAL_MUSL),y)
-TOOLCHAIN_EXTERNAL_LIBS += libc.so libgcc_s.so.*
-endif
-
-ifeq ($(BR2_INSTALL_LIBSTDCPP),y)
-TOOLCHAIN_EXTERNAL_LIBS += libstdc++.so.*
-endif
-
-ifeq ($(BR2_TOOLCHAIN_HAS_FORTRAN),y)
-TOOLCHAIN_EXTERNAL_LIBS += libgfortran.so.*
-# fortran needs quadmath on x86 and x86_64
-ifeq ($(BR2_TOOLCHAIN_HAS_LIBQUADMATH),y)
-TOOLCHAIN_EXTERNAL_LIBS += libquadmath.so*
-endif
-endif
-
-TOOLCHAIN_EXTERNAL_LIBS += $(call qstrip,$(BR2_TOOLCHAIN_EXTRA_EXTERNAL_LIBS))
-
-# Details about sysroot directory selection.
-#
-# To find the sysroot directory, we use the trick of looking for the
-# 'libc.a' file with the -print-file-name gcc option, and then
-# mangling the path to find the base directory of the sysroot.
-#
-# Note that we do not use the -print-sysroot option, because it is
-# only available since gcc 4.4.x, and we only recently dropped support
-# for 4.2.x and 4.3.x.
-#
-# When doing this, we don't pass any option to gcc that could select a
-# multilib variant (such as -march) as we want the "main" sysroot,
-# which contains all variants of the C library in the case of multilib
-# toolchains. We use the TARGET_CC_NO_SYSROOT variable, which is the
-# path of the cross-compiler, without the --sysroot=$(STAGING_DIR),
-# since what we want to find is the location of the original toolchain
-# sysroot. This "main" sysroot directory is stored in SYSROOT_DIR.
-#
-# Then, multilib toolchains are a little bit more complicated, since
-# they in fact have multiple sysroots, one for each variant supported
-# by the toolchain. So we need to find the particular sysroot we're
-# interested in.
-#
-# To do so, we ask the compiler where its sysroot is by passing all
-# flags (including -march and al.), except the --sysroot flag since we
-# want to the compiler to tell us where its original sysroot
-# is. ARCH_SUBDIR will contain the subdirectory, in the main
-# SYSROOT_DIR, that corresponds to the selected architecture
-# variant. ARCH_SYSROOT_DIR will contain the full path to this
-# location.
-#
-# One might wonder why we don't just bother with ARCH_SYSROOT_DIR. The
-# fact is that in multilib toolchains, the header files are often only
-# present in the main sysroot, and only the libraries are available in
-# each variant-specific sysroot directory.
-
-
-TOOLCHAIN_EXTERNAL_PREFIX = $(call qstrip,$(BR2_TOOLCHAIN_EXTERNAL_PREFIX))
-TOOLCHAIN_EXTERNAL_DOWNLOAD_INSTALL_DIR = $(HOST_DIR)/opt/ext-toolchain
-
-ifeq ($(BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD),y)
-TOOLCHAIN_EXTERNAL_INSTALL_DIR = $(TOOLCHAIN_EXTERNAL_DOWNLOAD_INSTALL_DIR)
-else
-TOOLCHAIN_EXTERNAL_INSTALL_DIR = $(call qstrip,$(BR2_TOOLCHAIN_EXTERNAL_PATH))
-endif
-
-ifeq ($(TOOLCHAIN_EXTERNAL_INSTALL_DIR),)
-ifneq ($(TOOLCHAIN_EXTERNAL_PREFIX),)
-# if no path set, figure it out from path
-TOOLCHAIN_EXTERNAL_BIN := $(shell dirname $(shell which $(TOOLCHAIN_EXTERNAL_PREFIX)-gcc))
-endif
-else
-ifeq ($(BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX),y)
-TOOLCHAIN_EXTERNAL_BIN := $(TOOLCHAIN_EXTERNAL_INSTALL_DIR)/$(TOOLCHAIN_EXTERNAL_PREFIX)/bin
-else
-TOOLCHAIN_EXTERNAL_BIN := $(TOOLCHAIN_EXTERNAL_INSTALL_DIR)/bin
-endif
-endif
-
-# If this is a buildroot toolchain, it already has a wrapper which we want to
-# bypass. Since this is only evaluated after it has been extracted, we can use
-# $(wildcard ...) here.
-TOOLCHAIN_EXTERNAL_SUFFIX = \
-	$(if $(wildcard $(TOOLCHAIN_EXTERNAL_BIN)/*.br_real),.br_real)
-TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += \
-	-DBR_CROSS_PATH_SUFFIX='"$(TOOLCHAIN_EXTERNAL_SUFFIX)"'
-
-TOOLCHAIN_EXTERNAL_CROSS = $(TOOLCHAIN_EXTERNAL_BIN)/$(TOOLCHAIN_EXTERNAL_PREFIX)-
-TOOLCHAIN_EXTERNAL_CC = $(TOOLCHAIN_EXTERNAL_CROSS)gcc$(TOOLCHAIN_EXTERNAL_SUFFIX)
-TOOLCHAIN_EXTERNAL_CXX = $(TOOLCHAIN_EXTERNAL_CROSS)g++$(TOOLCHAIN_EXTERNAL_SUFFIX)
-TOOLCHAIN_EXTERNAL_FC = $(TOOLCHAIN_EXTERNAL_CROSS)gfortran$(TOOLCHAIN_EXTERNAL_SUFFIX)
-TOOLCHAIN_EXTERNAL_READELF = $(TOOLCHAIN_EXTERNAL_CROSS)readelf$(TOOLCHAIN_EXTERNAL_SUFFIX)
-
-ifeq ($(filter $(HOST_DIR)/%,$(TOOLCHAIN_EXTERNAL_BIN)),)
-# TOOLCHAIN_EXTERNAL_BIN points outside HOST_DIR => absolute path
-TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += \
-	-DBR_CROSS_PATH_ABS='"$(TOOLCHAIN_EXTERNAL_BIN)"'
-else
-# TOOLCHAIN_EXTERNAL_BIN points inside HOST_DIR => relative path
-TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += \
-	-DBR_CROSS_PATH_REL='"$(TOOLCHAIN_EXTERNAL_BIN:$(HOST_DIR)/%=%)"'
-endif
-
-ifeq ($(call qstrip,$(BR2_GCC_TARGET_CPU_REVISION)),)
-CC_TARGET_CPU_ := $(call qstrip,$(BR2_GCC_TARGET_CPU))
-else
-CC_TARGET_CPU_ := $(call qstrip,$(BR2_GCC_TARGET_CPU)-$(BR2_GCC_TARGET_CPU_REVISION))
-endif
-CC_TARGET_ARCH_ := $(call qstrip,$(BR2_GCC_TARGET_ARCH))
-CC_TARGET_ABI_ := $(call qstrip,$(BR2_GCC_TARGET_ABI))
-CC_TARGET_FPU_ := $(call qstrip,$(BR2_GCC_TARGET_FPU))
-CC_TARGET_FLOAT_ABI_ := $(call qstrip,$(BR2_GCC_TARGET_FLOAT_ABI))
-CC_TARGET_MODE_ := $(call qstrip,$(BR2_GCC_TARGET_MODE))
-
-# march/mtune/floating point mode needs to be passed to the external toolchain
-# to select the right multilib variant
-ifeq ($(BR2_x86_64),y)
-TOOLCHAIN_EXTERNAL_CFLAGS += -m64
-TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_64
-endif
-ifneq ($(CC_TARGET_ARCH_),)
-TOOLCHAIN_EXTERNAL_CFLAGS += -march=$(CC_TARGET_ARCH_)
-TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_ARCH='"$(CC_TARGET_ARCH_)"'
-endif
-ifneq ($(CC_TARGET_CPU_),)
-TOOLCHAIN_EXTERNAL_CFLAGS += -mcpu=$(CC_TARGET_CPU_)
-TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_CPU='"$(CC_TARGET_CPU_)"'
-endif
-ifneq ($(CC_TARGET_ABI_),)
-TOOLCHAIN_EXTERNAL_CFLAGS += -mabi=$(CC_TARGET_ABI_)
-TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_ABI='"$(CC_TARGET_ABI_)"'
-endif
-ifneq ($(CC_TARGET_FPU_),)
-TOOLCHAIN_EXTERNAL_CFLAGS += -mfpu=$(CC_TARGET_FPU_)
-TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_FPU='"$(CC_TARGET_FPU_)"'
-endif
-ifneq ($(CC_TARGET_FLOAT_ABI_),)
-TOOLCHAIN_EXTERNAL_CFLAGS += -mfloat-abi=$(CC_TARGET_FLOAT_ABI_)
-TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_FLOAT_ABI='"$(CC_TARGET_FLOAT_ABI_)"'
-endif
-ifneq ($(CC_TARGET_MODE_),)
-TOOLCHAIN_EXTERNAL_CFLAGS += -m$(CC_TARGET_MODE_)
-TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_MODE='"$(CC_TARGET_MODE_)"'
-endif
-ifeq ($(BR2_BINFMT_FLAT),y)
-TOOLCHAIN_EXTERNAL_CFLAGS += -Wl,-elf2flt
-TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_BINFMT_FLAT
-endif
-ifeq ($(BR2_mipsel)$(BR2_mips64el),y)
-TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_MIPS_TARGET_LITTLE_ENDIAN
-TOOLCHAIN_EXTERNAL_CFLAGS += -EL
-endif
-ifeq ($(BR2_mips)$(BR2_mips64),y)
-TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_MIPS_TARGET_BIG_ENDIAN
-TOOLCHAIN_EXTERNAL_CFLAGS += -EB
-endif
-ifeq ($(BR2_arceb),y)
-TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_ARC_TARGET_BIG_ENDIAN
-TOOLCHAIN_EXTERNAL_CFLAGS += -EB
-endif
-
-TOOLCHAIN_EXTERNAL_CFLAGS += $(call qstrip,$(BR2_TARGET_OPTIMIZATION))
-
-ifeq ($(BR2_SOFT_FLOAT),y)
-TOOLCHAIN_EXTERNAL_CFLAGS += -msoft-float
-TOOLCHAIN_EXTERNAL_TOOLCHAIN_WRAPPER_ARGS += -DBR_SOFTFLOAT=1
-endif
-
-# musl does not provide an implementation for sys/queue.h or sys/cdefs.h.
-# So, add the musl-compat-headers package that will install those files,
-# into the staging directory:
-#   sys/queue.h:  header from NetBSD
-#   sys/cdefs.h:  minimalist header bundled in Buildroot
-ifeq ($(BR2_TOOLCHAIN_USES_MUSL),y)
-TOOLCHAIN_EXTERNAL_DEPENDENCIES += musl-compat-headers
-endif
-
-# The Codescape toolchain uses a sysroot layout that places them
-# side-by-side instead of nested like multilibs. A symlink is needed
-# much like for the nested sysroots which are handled in
-# copy_toolchain_sysroot but there is not enough information in there
-# to determine whether the sysroot layout was nested or side-by-side.
-# Add the symlink here for now.
-define TOOLCHAIN_EXTERNAL_CODESCAPE_MIPS_SYMLINK
-	$(Q)ARCH_SYSROOT_DIR="$(call toolchain_find_sysroot,$(TOOLCHAIN_EXTERNAL_CC) $(TOOLCHAIN_EXTERNAL_CFLAGS))"; \
-	ARCH_SUBDIR=`basename $${ARCH_SYSROOT_DIR}`; \
-	ln -snf . $(STAGING_DIR)/$${ARCH_SUBDIR}
-endef
-
-# Special fixup for Codescape MIPS toolchains, that have bin-<abi> and
-# sbin-<abi> directories. We create symlinks bin -> bin-<abi> and sbin
-# -> sbin-<abi> so that the rest of Buildroot can find the toolchain
-# tools in the appropriate location.
-ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESCAPE_IMG_MIPS)$(BR2_TOOLCHAIN_EXTERNAL_CODESCAPE_MTI_MIPS),y)
-ifeq ($(BR2_MIPS_OABI32),y)
-TOOLCHAIN_EXTERNAL_CODESCAPE_MIPS_BIN_DIR_SUFFIX = o32
-else ifeq ($(BR2_MIPS_NABI32),y)
-TOOLCHAIN_EXTERNAL_CODESCAPE_MIPS_BIN_DIR_SUFFIX = n32
-else ifeq ($(BR2_MIPS_NABI64),y)
-TOOLCHAIN_EXTERNAL_CODESCAPE_MIPS_BIN_DIR_SUFFIX = n64
-endif
-
-define TOOLCHAIN_EXTERNAL_CODESCAPE_MIPS_STAGING_FIXUPS
-	rmdir $(STAGING_DIR)/usr/bin $(STAGING_DIR)/usr/sbin
-	ln -sf bin-$(TOOLCHAIN_EXTERNAL_CODESCAPE_MIPS_BIN_DIR_SUFFIX) $(STAGING_DIR)/usr/bin
-	ln -sf sbin-$(TOOLCHAIN_EXTERNAL_CODESCAPE_MIPS_BIN_DIR_SUFFIX) $(STAGING_DIR)/usr/sbin
-endef
-endif
-
-# Special handling for Blackfin toolchain, because of the split in two
-# tarballs, and the organization of tarball contents. The tarballs
-# contain ./opt/uClinux/{bfin-uclinux,bfin-linux-uclibc} directories,
-# which themselves contain the toolchain. This is why we strip more
-# components than usual.
-define TOOLCHAIN_EXTERNAL_BLACKFIN_UCLIBC_EXTRA_EXTRACT
-	$(call suitable-extractor,$(TOOLCHAIN_EXTERNAL_EXTRA_DOWNLOADS)) $(DL_DIR)/$(TOOLCHAIN_EXTERNAL_EXTRA_DOWNLOADS) | \
-		$(TAR) --strip-components=3 --hard-dereference -C $(@D) $(TAR_OPTIONS) -
-endef
-
-ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_ARM),y)
-TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/arm-none-linux-gnueabi
-TOOLCHAIN_EXTERNAL_SOURCE = arm-2014.05-29-arm-none-linux-gnueabi-i686-pc-linux-gnu.tar.bz2
-else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_ARAGO_ARMV7A),y)
-TOOLCHAIN_EXTERNAL_SITE = http://software-dl.ti.com/sdoemb/sdoemb_public_sw/arago_toolchain/2011_09/exports
-TOOLCHAIN_EXTERNAL_SOURCE = arago-2011.09-armv7a-linux-gnueabi-sdk.tar.bz2
-TOOLCHAIN_EXTERNAL_ACTUAL_SOURCE_TARBALL = arago-toolchain-2011.09-sources.tar.bz2
-define TOOLCHAIN_EXTERNAL_FIXUP_CMDS
-	mv $(@D)/arago-2011.09/armv7a/* $(@D)/
-	rm -rf $(@D)/arago-2011.09/
-endef
-TOOLCHAIN_EXTERNAL_POST_EXTRACT_HOOKS += TOOLCHAIN_EXTERNAL_FIXUP_CMDS
-else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_ARAGO_ARMV5TE),y)
-TOOLCHAIN_EXTERNAL_SITE = http://software-dl.ti.com/sdoemb/sdoemb_public_sw/arago_toolchain/2011_09/exports
-TOOLCHAIN_EXTERNAL_SOURCE = arago-2011.09-armv5te-linux-gnueabi-sdk.tar.bz2
-TOOLCHAIN_EXTERNAL_ACTUAL_SOURCE_TARBALL = arago-toolchain-2011.09-sources.tar.bz2
-define TOOLCHAIN_EXTERNAL_FIXUP_CMDS
-	mv $(@D)/arago-2011.09/armv5te/* $(@D)/
-	rm -rf $(@D)/arago-2011.09/
-endef
-TOOLCHAIN_EXTERNAL_POST_EXTRACT_HOOKS += TOOLCHAIN_EXTERNAL_FIXUP_CMDS
-else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_LINARO_ARM),y)
-TOOLCHAIN_EXTERNAL_SITE = https://releases.linaro.org/components/toolchain/binaries/5.3-2016.05/arm-linux-gnueabihf
-ifeq ($(HOSTARCH),x86)
-TOOLCHAIN_EXTERNAL_SOURCE = gcc-linaro-5.3.1-2016.05-i686_arm-linux-gnueabihf.tar.xz
-else
-TOOLCHAIN_EXTERNAL_SOURCE = gcc-linaro-5.3.1-2016.05-x86_64_arm-linux-gnueabihf.tar.xz
-endif
-else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_LINARO_ARMEB),y)
-TOOLCHAIN_EXTERNAL_SITE = https://releases.linaro.org/components/toolchain/binaries/5.3-2016.05/armeb-linux-gnueabihf
-ifeq ($(HOSTARCH),x86)
-TOOLCHAIN_EXTERNAL_SOURCE = gcc-linaro-5.3.1-2016.05-i686_armeb-linux-gnueabihf.tar.xz
-else
-TOOLCHAIN_EXTERNAL_SOURCE = gcc-linaro-5.3.1-2016.05-x86_64_armeb-linux-gnueabihf.tar.xz
-endif
-else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_MIPS),y)
-TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/mips-linux-gnu
-TOOLCHAIN_EXTERNAL_SOURCE = mips-2016.05-8-mips-linux-gnu-i686-pc-linux-gnu.tar.bz2
-else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_NIOSII),y)
-TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/nios2-linux-gnu
-TOOLCHAIN_EXTERNAL_SOURCE = sourceryg++-2016.05-10-nios2-linux-gnu-i686-pc-linux-gnu.tar.bz2
-else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_SH),y)
-TOOLCHAIN_EXTERNAL_SITE = https://sourcery.mentor.com/public/gnu_toolchain/sh-linux-gnu
-TOOLCHAIN_EXTERNAL_SOURCE = renesas-2012.09-61-sh-linux-gnu-i686-pc-linux-gnu.tar.bz2
-else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_X86),y)
-TOOLCHAIN_EXTERNAL_SITE = https://sourcery.mentor.com/public/gnu_toolchain/i686-pc-linux-gnu
-TOOLCHAIN_EXTERNAL_SOURCE = ia32-2012.09-62-i686-pc-linux-gnu-i386-linux.tar.bz2
-else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_AMD64),y)
-TOOLCHAIN_EXTERNAL_SITE = https://sourcery.mentor.com/public/gnu_toolchain/x86_64-amd-linux-gnu
-TOOLCHAIN_EXTERNAL_SOURCE = amd-2015.11-139-x86_64-amd-linux-gnu-i686-pc-linux-gnu.tar.bz2
-else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESCAPE_IMG_MIPS),y)
-TOOLCHAIN_EXTERNAL_SITE = http://codescape-mips-sdk.imgtec.com/components/toolchain/2016.05-03
-TOOLCHAIN_EXTERNAL_SOURCE = Codescape.GNU.Tools.Package.2016.05-03.for.MIPS.IMG.Linux.CentOS-5.x86.tar.gz
-TOOLCHAIN_EXTERNAL_POST_INSTALL_STAGING_HOOKS += TOOLCHAIN_EXTERNAL_CODESCAPE_MIPS_SYMLINK
-TOOLCHAIN_EXTERNAL_POST_INSTALL_STAGING_HOOKS += TOOLCHAIN_EXTERNAL_CODESCAPE_MIPS_STAGING_FIXUPS
-TOOLCHAIN_EXTERNAL_STRIP_COMPONENTS = 2
-else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESCAPE_MTI_MIPS),y)
-TOOLCHAIN_EXTERNAL_SITE = http://codescape-mips-sdk.imgtec.com/components/toolchain/2016.05-03
-TOOLCHAIN_EXTERNAL_SOURCE = Codescape.GNU.Tools.Package.2016.05-03.for.MIPS.MTI.Linux.CentOS-5.x86.tar.gz
-TOOLCHAIN_EXTERNAL_POST_INSTALL_STAGING_HOOKS += TOOLCHAIN_EXTERNAL_CODESCAPE_MIPS_SYMLINK
-TOOLCHAIN_EXTERNAL_POST_INSTALL_STAGING_HOOKS += TOOLCHAIN_EXTERNAL_CODESCAPE_MIPS_STAGING_FIXUPS
-TOOLCHAIN_EXTERNAL_STRIP_COMPONENTS = 2
-else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX),y)
-TOOLCHAIN_EXTERNAL_SITE = http://downloads.sourceforge.net/project/adi-toolchain/2014R1/2014R1-RC2/i386
-TOOLCHAIN_EXTERNAL_SOURCE = blackfin-toolchain-2014R1-RC2.i386.tar.bz2
-TOOLCHAIN_EXTERNAL_EXTRA_DOWNLOADS = blackfin-toolchain-uclibc-full-2014R1-RC2.i386.tar.bz2
-TOOLCHAIN_EXTERNAL_STRIP_COMPONENTS = 3
-TOOLCHAIN_EXTERNAL_POST_EXTRACT_HOOKS += TOOLCHAIN_EXTERNAL_BLACKFIN_UCLIBC_EXTRA_EXTRACT
-else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_LINARO_AARCH64),y)
-TOOLCHAIN_EXTERNAL_SITE = https://releases.linaro.org/components/toolchain/binaries/5.3-2016.05/aarch64-linux-gnu
-ifeq ($(HOSTARCH),x86)
-TOOLCHAIN_EXTERNAL_SOURCE = gcc-linaro-5.3.1-2016.05-i686_aarch64-linux-gnu.tar.xz
-else
-TOOLCHAIN_EXTERNAL_SOURCE = gcc-linaro-5.3.1-2016.05-x86_64_aarch64-linux-gnu.tar.xz
-endif
-else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_CODESOURCERY_AARCH64),y)
-TOOLCHAIN_EXTERNAL_SITE = http://sourcery.mentor.com/public/gnu_toolchain/aarch64-amd-linux-gnu
-TOOLCHAIN_EXTERNAL_SOURCE = aarch64-amd-2014.11-95-aarch64-amd-linux-gnu-i686-pc-linux-gnu.tar.bz2
-define TOOLCHAIN_EXTERNAL_CODESOURCERY_AARCH64_STAGING_FIXUP
-	ln -sf ld-2.20.so $(STAGING_DIR)/lib/ld-linux-aarch64.so.1
-endef
-TOOLCHAIN_EXTERNAL_POST_INSTALL_STAGING_HOOKS += TOOLCHAIN_EXTERNAL_CODESOURCERY_AARCH64_STAGING_FIXUP
-define TOOLCHAIN_EXTERNAL_CODESOURCERY_AARCH64_TARGET_FIXUP
-	ln -sf ld-2.20.so $(TARGET_DIR)/lib/ld-linux-aarch64.so.1
-endef
-TOOLCHAIN_EXTERNAL_POST_INSTALL_TARGET_HOOKS += TOOLCHAIN_EXTERNAL_CODESOURCERY_AARCH64_TARGET_FIXUP
-else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_MUSL_CROSS),y)
-TOOLCHAIN_EXTERNAL_VERSION = 1.1.12
-TOOLCHAIN_EXTERNAL_SITE = https://googledrive.com/host/0BwnS5DMB0YQ6bDhPZkpOYVFhbk0/musl-$(TOOLCHAIN_EXTERNAL_VERSION)
-ifeq ($(BR2_arm)$(BR2_ARM_EABI),yy)
-TOOLCHAIN_EXTERNAL_SOURCE = crossx86-arm-linux-musleabi-$(TOOLCHAIN_EXTERNAL_VERSION).tar.xz
-else ifeq ($(BR2_arm)$(BR2_ARM_EABIHF),yy)
-TOOLCHAIN_EXTERNAL_SOURCE = crossx86-arm-linux-musleabihf-$(TOOLCHAIN_EXTERNAL_VERSION).tar.xz
-else ifeq ($(BR2_armeb),y)
-TOOLCHAIN_EXTERNAL_SOURCE = crossx86-armeb-linux-musleabi-$(TOOLCHAIN_EXTERNAL_VERSION).tar.xz
-else ifeq ($(BR2_i386),y)
-TOOLCHAIN_EXTERNAL_SOURCE = crossx86-i486-linux-musl-$(TOOLCHAIN_EXTERNAL_VERSION).tar.xz
-else ifeq ($(BR2_mips),y)
-TOOLCHAIN_EXTERNAL_SOURCE = crossx86-mips-linux-musl-$(TOOLCHAIN_EXTERNAL_VERSION).tar.xz
-else ifeq ($(BR2_mipsel):$(BR2_SOFT_FLOAT),y:)
-TOOLCHAIN_EXTERNAL_SOURCE = crossx86-mipsel-linux-musl-$(TOOLCHAIN_EXTERNAL_VERSION).tar.xz
-else ifeq ($(BR2_mipsel):$(BR2_SOFT_FLOAT),y:y)
-TOOLCHAIN_EXTERNAL_SOURCE = crossx86-mipsel-sf-linux-musl-$(TOOLCHAIN_EXTERNAL_VERSION).tar.xz
-else ifeq ($(BR2_powerpc),y)
-TOOLCHAIN_EXTERNAL_SOURCE = crossx86-powerpc-linux-musl-$(TOOLCHAIN_EXTERNAL_VERSION).tar.xz
-else ifeq ($(BR2_sh4),y)
-TOOLCHAIN_EXTERNAL_SOURCE = crossx86-sh4-linux-musl-$(TOOLCHAIN_EXTERNAL_VERSION).tar.xz
-else ifeq ($(BR2_sh4eb),y)
-TOOLCHAIN_EXTERNAL_SOURCE = crossx86-sh4eb-linux-musl-$(TOOLCHAIN_EXTERNAL_VERSION).tar.xz
-else ifeq ($(BR2_x86_64),y)
-TOOLCHAIN_EXTERNAL_SOURCE = crossx86-x86_64-linux-musl-$(TOOLCHAIN_EXTERNAL_VERSION).tar.xz
-endif
-else ifeq ($(BR2_TOOLCHAIN_EXTERNAL_SYNOPSYS_ARC),y)
-TOOLCHAIN_EXTERNAL_SITE = https://github.com/foss-for-synopsys-dwc-arc-processors/toolchain/releases/download/arc-2014.12
-ifeq ($(BR2_arc750d)$(BR2_arc770d),y)
-TOOLCHAIN_EXTERNAL_SYNOPSYS_CORE = arc700
-else
-TOOLCHAIN_EXTERNAL_SYNOPSYS_CORE = archs
-endif
-ifeq ($(BR2_arcle),y)
-TOOLCHAIN_EXTERNAL_SYNOPSYS_ENDIANESS = le
-else
-TOOLCHAIN_EXTERNAL_SYNOPSYS_ENDIANESS = be
-endif
-TOOLCHAIN_EXTERNAL_SOURCE = arc_gnu_2014.12_prebuilt_uclibc_$(TOOLCHAIN_EXTERNAL_SYNOPSYS_ENDIANESS)_$(TOOLCHAIN_EXTERNAL_SYNOPSYS_CORE)_linux_install.tar.gz
-else
-# Custom toolchain
-TOOLCHAIN_EXTERNAL_SITE = $(patsubst %/,%,$(dir $(call qstrip,$(BR2_TOOLCHAIN_EXTERNAL_URL))))
-TOOLCHAIN_EXTERNAL_SOURCE = $(notdir $(call qstrip,$(BR2_TOOLCHAIN_EXTERNAL_URL)))
-# We can't check hashes for custom downloaded toolchains
-BR_NO_CHECK_HASH_FOR += $(TOOLCHAIN_EXTERNAL_SOURCE)
-endif
-
-# Some toolchain vendors have a regular file naming pattern.
-# For them, mass-define _ACTUAL_SOURCE_TARBALL based _SITE.
-ifneq ($(findstring sourcery.mentor.com/public/gnu_toolchain,$(TOOLCHAIN_EXTERNAL_SITE)),)
-TOOLCHAIN_EXTERNAL_ACTUAL_SOURCE_TARBALL ?= \
-	$(subst -i686-pc-linux-gnu.tar.bz2,.src.tar.bz2,$(subst -i686-pc-linux-gnu-i386-linux.tar.bz2,-i686-pc-linux-gnu.src.tar.bz2,$(TOOLCHAIN_EXTERNAL_SOURCE)))
-endif
-
-# In fact, we don't need to download the toolchain, since it is already
-# available on the system, so force the site and source to be empty so
-# that nothing will be downloaded/extracted.
-ifeq ($(BR2_TOOLCHAIN_EXTERNAL_PREINSTALLED),y)
-TOOLCHAIN_EXTERNAL_SITE =
-TOOLCHAIN_EXTERNAL_SOURCE =
-endif
-
 TOOLCHAIN_EXTERNAL_ADD_TOOLCHAIN_DEPENDENCY = NO
 
-TOOLCHAIN_EXTERNAL_INSTALL_STAGING = YES
-
-# Normal handling of downloaded toolchain tarball extraction.
-ifeq ($(BR2_TOOLCHAIN_EXTERNAL_DOWNLOAD),y)
-TOOLCHAIN_EXTERNAL_EXCLUDES = usr/lib/locale/*
-
-# As a regular package, the toolchain gets extracted in $(@D), but
-# since it's actually a fairly special package, we need it to be moved
-# into TOOLCHAIN_EXTERNAL_DOWNLOAD_INSTALL_DIR.
-define TOOLCHAIN_EXTERNAL_MOVE
-	rm -rf $(TOOLCHAIN_EXTERNAL_DOWNLOAD_INSTALL_DIR)
-	mkdir -p $(TOOLCHAIN_EXTERNAL_DOWNLOAD_INSTALL_DIR)
-	mv $(@D)/* $(TOOLCHAIN_EXTERNAL_DOWNLOAD_INSTALL_DIR)/
-endef
-TOOLCHAIN_EXTERNAL_POST_EXTRACT_HOOKS += \
-	TOOLCHAIN_EXTERNAL_MOVE
-endif
-
-# Returns the location of the libc.a file for the given compiler + flags
-define toolchain_find_libc_a
-$$(readlink -f $$(LANG=C $(1) -print-file-name=libc.a))
-endef
-
-# Returns the sysroot location for the given compiler + flags. We need
-# to handle cases where libc.a is in:
-#
-#  - lib/
-#  - usr/lib/
-#  - lib32/
-#  - lib64/
-#  - lib32-fp/ (Cavium toolchain)
-#  - lib64-fp/ (Cavium toolchain)
-#  - usr/lib/<tuple>/ (Linaro toolchain)
-#
-# And variations on these.
-define toolchain_find_sysroot
-$$(printf $(call toolchain_find_libc_a,$(1)) | sed -r -e 's:(usr/)?lib(32|64)?([^/]*)?/([^/]*/)?libc\.a::')
-endef
-
-# Returns the lib subdirectory for the given compiler + flags (i.e
-# typically lib32 or lib64 for some toolchains)
-define toolchain_find_libdir
-$$(printf $(call toolchain_find_libc_a,$(1)) | sed -r -e 's:.*/(usr/)?(lib(32|64)?([^/]*)?)/([^/]*/)?libc.a:\2:')
-endef
-
-# Checks for an already installed toolchain: check the toolchain
-# location, check that it is usable, and then verify that it
-# matches the configuration provided in Buildroot: ABI, C++ support,
-# kernel headers version, type of C library and all C library features.
-define TOOLCHAIN_EXTERNAL_CONFIGURE_CMDS
-	$(Q)$(call check_cross_compiler_exists,$(TOOLCHAIN_EXTERNAL_CC))
-	$(Q)$(call check_unusable_toolchain,$(TOOLCHAIN_EXTERNAL_CC))
-	$(Q)SYSROOT_DIR="$(call toolchain_find_sysroot,$(TOOLCHAIN_EXTERNAL_CC))" ; \
-	$(call check_kernel_headers_version,\
-		$(call toolchain_find_sysroot,$(TOOLCHAIN_EXTERNAL_CC)),\
-		$(call qstrip,$(BR2_TOOLCHAIN_HEADERS_AT_LEAST))); \
-	$(call check_gcc_version,$(TOOLCHAIN_EXTERNAL_CC),\
-		$(call qstrip,$(BR2_TOOLCHAIN_GCC_AT_LEAST))); \
-	if test "$(BR2_arm)" = "y" ; then \
-		$(call check_arm_abi,\
-			"$(TOOLCHAIN_EXTERNAL_CC) $(TOOLCHAIN_EXTERNAL_CFLAGS)",\
-			$(TOOLCHAIN_EXTERNAL_READELF)) ; \
-	fi ; \
-	if test "$(BR2_INSTALL_LIBSTDCPP)" = "y" ; then \
-		$(call check_cplusplus,$(TOOLCHAIN_EXTERNAL_CXX)) ; \
-	fi ; \
-	if test "$(BR2_TOOLCHAIN_HAS_FORTRAN)" = "y" ; then \
-		$(call check_fortran,$(TOOLCHAIN_EXTERNAL_FC)) ; \
-	fi ; \
-	if test "$(BR2_TOOLCHAIN_EXTERNAL_UCLIBC)" = "y" ; then \
-		$(call check_uclibc,$${SYSROOT_DIR}) ; \
-	elif test "$(BR2_TOOLCHAIN_EXTERNAL_MUSL)" = "y" ; then \
-		$(call check_musl,$${SYSROOT_DIR}) ; \
-	else \
-		$(call check_glibc,$${SYSROOT_DIR}) ; \
-	fi
-	$(Q)$(call check_toolchain_ssp,$(TOOLCHAIN_EXTERNAL_CC))
-endef
-
-# With the musl C library, the libc.so library directly plays the role
-# of the dynamic library loader. We just need to create a symbolic
-# link to libc.so with the appropriate name.
-ifeq ($(BR2_TOOLCHAIN_EXTERNAL_MUSL),y)
-ifeq ($(BR2_i386),y)
-MUSL_ARCH = i386
-else ifeq ($(BR2_ARM_EABIHF),y)
-MUSL_ARCH = armhf
-else ifeq ($(BR2_mipsel):$(BR2_SOFT_FLOAT),y:y)
-MUSL_ARCH = mipsel-sf
-else ifeq ($(BR2_sh),y)
-MUSL_ARCH = sh
-else
-MUSL_ARCH = $(ARCH)
-endif
-define TOOLCHAIN_EXTERNAL_MUSL_LD_LINK
-	ln -sf libc.so $(TARGET_DIR)/lib/ld-musl-$(MUSL_ARCH).so.1
-endef
-TOOLCHAIN_EXTERNAL_POST_INSTALL_STAGING_HOOKS += TOOLCHAIN_EXTERNAL_MUSL_LD_LINK
-endif
-
-# Create a symlink from (usr/)$(ARCH_LIB_DIR) to lib.
-# Note: the skeleton package additionally creates lib32->lib or lib64->lib
-# (as appropriate)
-#
-# $1: destination directory (TARGET_DIR / STAGING_DIR)
-# $2: toolchain CC
-# $3: toolchain CFLAGS
-create_lib_symlinks = \
-       $(Q)DESTDIR="$(strip $1)" ; \
-       TOOLCHAIN_CC="$(strip $2)" ; \
-       TOOLCHAIN_CFLAGS="$(strip $3)" ; \
-       ARCH_LIB_DIR="$(call toolchain_find_libdir,$${TOOLCHAIN_CC} $${TOOLCHAIN_CFLAGS})" ; \
-       if [ ! -e "$${DESTDIR}/$${ARCH_LIB_DIR}" -a ! -e "$${DESTDIR}/usr/$${ARCH_LIB_DIR}" ]; then \
-               ln -snf lib "$${DESTDIR}/$${ARCH_LIB_DIR}" ; \
-               ln -snf lib "$${DESTDIR}/usr/$${ARCH_LIB_DIR}" ; \
-       fi
-
-# $1: toolchain CC
-# $2: toolchain CFLAGS
-define TOOLCHAIN_EXTERNAL_CREATE_STAGING_LIB_SYMLINK
-       $(call create_lib_symlinks,$(STAGING_DIR),$(1),$(2))
-endef
-
-# $1: toolchain CC
-# $2: toolchain CFLAGS
-define TOOLCHAIN_EXTERNAL_CREATE_TARGET_LIB_SYMLINK
-       $(call create_lib_symlinks,$(TARGET_DIR),$(1),$(2))
-endef
-
-# Integration of the toolchain into Buildroot: find the main sysroot
-# and the variant-specific sysroot, then copy the needed libraries to
-# the $(TARGET_DIR) and copy the whole sysroot (libraries and headers)
-# to $(STAGING_DIR).
-#
-# Variables are defined as follows:
-#
-#  LIBC_A_LOCATION:     location of the libc.a file in the default
-#                       multilib variant (allows to find the main
-#                       sysroot directory)
-#                       Ex: /x-tools/mips-2011.03/mips-linux-gnu/libc/usr/lib/libc.a
-#
-#  SYSROOT_DIR:         the main sysroot directory, deduced from
-#                       LIBC_A_LOCATION by removing the
-#                       usr/lib[32|64]/libc.a part of the path.
-#                       Ex: /x-tools/mips-2011.03/mips-linux-gnu/libc/
-#
-# ARCH_LIBC_A_LOCATION: location of the libc.a file in the selected
-#                       multilib variant (taking into account the
-#                       CFLAGS). Allows to find the sysroot of the
-#                       selected multilib variant.
-#                       Ex: /x-tools/mips-2011.03/mips-linux-gnu/libc/mips16/soft-float/el/usr/lib/libc.a
-#
-# ARCH_SYSROOT_DIR:     the sysroot of the selected multilib variant,
-#                       deduced from ARCH_LIBC_A_LOCATION by removing
-#                       usr/lib[32|64]/libc.a at the end of the path.
-#                       Ex: /x-tools/mips-2011.03/mips-linux-gnu/libc/mips16/soft-float/el/
-#
-# ARCH_LIB_DIR:         'lib', 'lib32' or 'lib64' depending on where libraries
-#                       are stored. Deduced from ARCH_LIBC_A_LOCATION by
-#                       looking at usr/lib??/libc.a.
-#                       Ex: lib
-#
-# ARCH_SUBDIR:          the relative location of the sysroot of the selected
-#                       multilib variant compared to the main sysroot.
-#			Ex: mips16/soft-float/el
-#
-# SUPPORT_LIB_DIR:      some toolchains, such as recent Linaro toolchains,
-#                       store GCC support libraries (libstdc++,
-#                       libgcc_s, etc.) outside of the sysroot. In
-#                       this case, SUPPORT_LIB_DIR is set to a
-#                       non-empty value, and points to the directory
-#                       where these support libraries are
-#                       available. Those libraries will be copied to
-#                       our sysroot, and the directory will also be
-#                       considered when searching libraries for copy
-#                       to the target filesystem.
-#
-# Please be very careful to check the major toolchain sources:
-# Buildroot, Crosstool-NG, CodeSourcery and Linaro
-# before doing any modification on the below logic.
-
-# $1: toolchain LIBS
-ifeq ($(BR2_STATIC_LIBS),)
-define TOOLCHAIN_EXTERNAL_INSTALL_TARGET_LIBS
-	$(Q)$(call MESSAGE,"Copying external toolchain libraries to target...")
-	$(Q)for libs in $(1); do \
-		$(call copy_toolchain_lib_root,$$libs); \
-	done
-endef
-endif
-
-# $1: toolchain CC
-# $2: toolchain CFLAGS
-# $3: toolchain INSTALL_DIR
-ifeq ($(BR2_TOOLCHAIN_EXTERNAL_GDB_SERVER_COPY),y)
-define TOOLCHAIN_EXTERNAL_INSTALL_TARGET_GDBSERVER
-	$(Q)$(call MESSAGE,"Copying gdbserver")
-	$(Q)ARCH_SYSROOT_DIR="$(call toolchain_find_sysroot,$(1) $(2))" ; \
-	ARCH_LIB_DIR="$(call toolchain_find_libdir,$(1) $(2))" ; \
-	gdbserver_found=0 ; \
-	for d in $${ARCH_SYSROOT_DIR}/usr \
-		 $${ARCH_SYSROOT_DIR}/../debug-root/usr \
-		 $${ARCH_SYSROOT_DIR}/usr/$${ARCH_LIB_DIR} \
-		 $(3); do \
-		if test -f $${d}/bin/gdbserver ; then \
-			install -m 0755 -D $${d}/bin/gdbserver $(TARGET_DIR)/usr/bin/gdbserver ; \
-			gdbserver_found=1 ; \
-			break ; \
-		fi ; \
-	done ; \
-	if [ $${gdbserver_found} -eq 0 ] ; then \
-		echo "Could not find gdbserver in external toolchain" ; \
-		exit 1 ; \
-	fi
-endef
-endif
-
-# $1: toolchain CC
-# $2: toolchain CFLAGS
-define TOOLCHAIN_EXTERNAL_INSTALL_SYSROOT_LIBS
-	$(Q)SYSROOT_DIR="$(call toolchain_find_sysroot,$(1))" ; \
-	ARCH_SYSROOT_DIR="$(call toolchain_find_sysroot,$(1) $(2))" ; \
-	ARCH_LIB_DIR="$(call toolchain_find_libdir,$(1) $(2))" ; \
-	SUPPORT_LIB_DIR="" ; \
-	if test `find $${ARCH_SYSROOT_DIR} -name 'libstdc++.a' | wc -l` -eq 0 ; then \
-		LIBSTDCPP_A_LOCATION=$$(LANG=C $(1) $(2) -print-file-name=libstdc++.a) ; \
-		if [ -e "$${LIBSTDCPP_A_LOCATION}" ]; then \
-			SUPPORT_LIB_DIR=`readlink -f $${LIBSTDCPP_A_LOCATION} | sed -r -e 's:libstdc\+\+\.a::'` ; \
-		fi ; \
-	fi ; \
-	if [ "$${SYSROOT_DIR}" == "$${ARCH_SYSROOT_DIR}" ] ; then \
-		ARCH_SUBDIR="" ; \
-	elif [ "`dirname $${ARCH_SYSROOT_DIR}`" = "`dirname $${SYSROOT_DIR}`" ] ; then \
-		SYSROOT_DIR_DIRNAME=`dirname $${SYSROOT_DIR}`/ ; \
-		ARCH_SUBDIR=`echo $${ARCH_SYSROOT_DIR} | sed -r -e "s:^$${SYSROOT_DIR_DIRNAME}(.*)/$$:\1:"` ; \
-	else \
-		ARCH_SUBDIR=`echo $${ARCH_SYSROOT_DIR} | sed -r -e "s:^$${SYSROOT_DIR}(.*)/$$:\1:"` ; \
-	fi ; \
-	$(call MESSAGE,"Copying external toolchain sysroot to staging...") ; \
-	$(call copy_toolchain_sysroot,$${SYSROOT_DIR},$${ARCH_SYSROOT_DIR},$${ARCH_SUBDIR},$${ARCH_LIB_DIR},$${SUPPORT_LIB_DIR})
-endef
-
-# Special installation target used on the Blackfin architecture when
-# FDPIC is not the primary binary format being used, but the user has
-# nonetheless requested the installation of the FDPIC libraries to the
-# target filesystem.
-# $1: toolchain CC
-# $2: toolchain CFLAGS
-ifeq ($(BR2_BFIN_INSTALL_FDPIC_SHARED),y)
-define TOOLCHAIN_EXTERNAL_INSTALL_SYSROOT_LIBS_BFIN_FDPIC
-	$(Q)$(call MESSAGE,"Install external toolchain FDPIC libraries to staging...")
-	$(Q)FDPIC_EXTERNAL_CC=$(dir $(1))/../../bfin-linux-uclibc/bin/bfin-linux-uclibc-gcc ; \
-	FDPIC_SYSROOT_DIR="$(call toolchain_find_sysroot,$${FDPIC_EXTERNAL_CC} $(2))" ; \
-	FDPIC_LIB_DIR="$(call toolchain_find_libdir,$${FDPIC_EXTERNAL_CC} $(2))" ; \
-	FDPIC_SUPPORT_LIB_DIR="" ; \
-	if test `find $${FDPIC_SYSROOT_DIR} -name 'libstdc++.a' | wc -l` -eq 0 ; then \
-	        FDPIC_LIBSTDCPP_A_LOCATION=$$(LANG=C $${FDPIC_EXTERNAL_CC} $(2) -print-file-name=libstdc++.a) ; \
-	        if [ -e "$${FDPIC_LIBSTDCPP_A_LOCATION}" ]; then \
-	                FDPIC_SUPPORT_LIB_DIR=`readlink -f $${FDPIC_LIBSTDCPP_A_LOCATION} | sed -r -e 's:libstdc\+\+\.a::'` ; \
-	        fi ; \
-	fi ; \
-	$(call copy_toolchain_sysroot,$${FDPIC_SYSROOT_DIR},$${FDPIC_SYSROOT_DIR},,$${FDPIC_LIB_DIR},$${FDPIC_SUPPORT_LIB_DIR})
-endef
-# $1: toolchain LIBS
-define TOOLCHAIN_EXTERNAL_INSTALL_TARGET_BFIN_FDPIC
-	$(Q)$(call MESSAGE,"Install external toolchain FDPIC libraries to target...")
-	$(Q)for libs in $(1); do \
-		$(call copy_toolchain_lib_root,$$libs); \
-	done
-endef
-endif
-
-# Special installation target used on the Blackfin architecture when
-# shared FLAT is not the primary format being used, but the user has
-# nonetheless requested the installation of the shared FLAT libraries
-# to the target filesystem. The flat libraries are found and linked
-# according to the index in name "libN.so". Index 1 is reserved for
-# the standard C library. Customer libraries can use 4 and above.
-# $1: toolchain CC
-# $2: toolchain CFLAGS
-ifeq ($(BR2_BFIN_INSTALL_FLAT_SHARED),y)
-define TOOLCHAIN_EXTERNAL_INSTALL_TARGET_BFIN_FLAT
-	$(Q)$(call MESSAGE,"Install external toolchain FLAT libraries to target...")
-	$(Q)FLAT_EXTERNAL_CC=$(dir $(1))../../bfin-uclinux/bin/bfin-uclinux-gcc ; \
-	FLAT_LIBC_A_LOCATION=`$${FLAT_EXTERNAL_CC} $(2) -mid-shared-library -print-file-name=libc`; \
-	if [ -f $${FLAT_LIBC_A_LOCATION} -a ! -h $${FLAT_LIBC_A_LOCATION} ] ; then \
-	        $(INSTALL) -D $${FLAT_LIBC_A_LOCATION} $(TARGET_DIR)/lib/lib1.so; \
-	fi
-endef
-endif
-
-# Build toolchain wrapper for preprocessor, C, C++ and Fortran compilers
-# and setup symlinks for everything else. Skip gdb symlink when we are
-# building our own gdb to prevent two gdb's in output/host/usr/bin.
-# The LTO support in gcc creates wrappers for ar, ranlib and nm which load
-# the lto plugin. These wrappers are called *-gcc-ar, *-gcc-ranlib, and
-# *-gcc-nm and should be used instead of the real programs when -flto is
-# used. However, we should not add the toolchain wrapper for them, and they
-# match the *cc-* pattern. Therefore, an additional case is added for *-ar,
-# *-ranlib and *-nm.
-# $1 toolchain CROSS
-define TOOLCHAIN_EXTERNAL_INSTALL_WRAPPER
-	$(Q)cd $(HOST_DIR)/usr/bin; \
-	for i in $(1)*; do \
-		base=$${i##*/}; \
-		case "$$base" in \
-		*-ar|*-ranlib|*-nm) \
-			ln -sf $$(echo $$i | sed 's%^$(HOST_DIR)%../..%') .; \
-			;; \
-		*cc|*cc-*|*++|*++-*|*cpp|*-gfortran) \
-			ln -sf toolchain-wrapper $$base; \
-			;; \
-		*gdb|*gdbtui) \
-			if test "$(BR2_PACKAGE_HOST_GDB)" != "y"; then \
-				ln -sf $$(echo $$i | sed 's%^$(HOST_DIR)%../..%') .; \
-			fi \
-			;; \
-		*) \
-			ln -sf $$(echo $$i | sed 's%^$(HOST_DIR)%../..%') .; \
-			;; \
-		esac; \
-	done
-endef
-
-#
-# Generate gdbinit file for use with Buildroot
-#
-define TOOLCHAIN_EXTERNAL_INSTALL_GDBINIT
-	$(Q)if test -f $(TARGET_CROSS)gdb ; then \
-		$(call MESSAGE,"Installing gdbinit"); \
-		$(gen_gdbinit_file); \
-	fi
-endef
-
-# uClibc-ng dynamic loader is called ld-uClibc.so.1, but gcc is not
-# patched specifically for uClibc-ng, so it continues to generate
-# binaries that expect the dynamic loader to be named ld-uClibc.so.0,
-# like with the original uClibc. Therefore, we create an additional
-# symbolic link to make uClibc-ng systems work properly.
-define TOOLCHAIN_EXTERNAL_FIXUP_UCLIBCNG_LDSO
-	$(Q)if test -e $(TARGET_DIR)/lib/ld-uClibc.so.1; then \
-		ln -sf ld-uClibc.so.1 $(TARGET_DIR)/lib/ld-uClibc.so.0 ; \
-	fi
-	$(Q)if test -e $(TARGET_DIR)/lib/ld64-uClibc.so.1; then \
-		ln -sf ld64-uClibc.so.1 $(TARGET_DIR)/lib/ld64-uClibc.so.0 ; \
-	fi
-endef
-
-TOOLCHAIN_EXTERNAL_BUILD_CMDS = $(TOOLCHAIN_WRAPPER_BUILD)
-
-define TOOLCHAIN_EXTERNAL_INSTALL_STAGING_CMDS
-	$(TOOLCHAIN_WRAPPER_INSTALL)
-	$(call TOOLCHAIN_EXTERNAL_CREATE_STAGING_LIB_SYMLINK,$(TOOLCHAIN_EXTERNAL_CC),$(TOOLCHAIN_EXTERNAL_CFLAGS))
-	$(call TOOLCHAIN_EXTERNAL_INSTALL_SYSROOT_LIBS,$(TOOLCHAIN_EXTERNAL_CC),$(TOOLCHAIN_EXTERNAL_CFLAGS))
-	$(call TOOLCHAIN_EXTERNAL_INSTALL_SYSROOT_LIBS_BFIN_FDPIC,$(TOOLCHAIN_EXTERNAL_CC),$(TOOLCHAIN_EXTERNAL_CFLAGS))
-	$(call TOOLCHAIN_EXTERNAL_INSTALL_WRAPPER,$(TOOLCHAIN_EXTERNAL_CROSS))
-	$(TOOLCHAIN_EXTERNAL_INSTALL_GDBINIT)
-endef
-
-# Even though we're installing things in both the staging, the host
-# and the target directory, we do everything within the
-# install-staging step, arbitrarily.
-define TOOLCHAIN_EXTERNAL_INSTALL_TARGET_CMDS
-	$(call TOOLCHAIN_EXTERNAL_CREATE_TARGET_LIB_SYMLINK,$(TOOLCHAIN_EXTERNAL_CC),$(TOOLCHAIN_EXTERNAL_CFLAGS))
-	$(call TOOLCHAIN_EXTERNAL_INSTALL_TARGET_LIBS,$(TOOLCHAIN_EXTERNAL_LIBS))
-	$(call TOOLCHAIN_EXTERNAL_INSTALL_TARGET_GDBSERVER,$(TOOLCHAIN_EXTERNAL_CC),$(TOOLCHAIN_EXTERNAL_CFLAGS),$(TOOLCHAIN_EXTERNAL_INSTALL_DIR))
-	$(call TOOLCHAIN_EXTERNAL_INSTALL_TARGET_BFIN_FDPIC,$(TOOLCHAIN_EXTERNAL_LIBS))
-	$(call TOOLCHAIN_EXTERNAL_INSTALL_TARGET_BFIN_FLAT,$(TOOLCHAIN_EXTERNAL_CC),$(TOOLCHAIN_EXTERNAL_CFLAGS))
-	$(TOOLCHAIN_EXTERNAL_FIXUP_UCLIBCNG_LDSO)
-endef
-
-$(eval $(generic-package))
+$(eval $(virtual-package))
 
+-include toolchain/toolchain-external/*/*.mk
-- 
2.5.5

[Buildroot] [PATCH v2 01/23] toolchain-external: TOOLCHAIN_EXTERNAL_CREATE_*_LIB_SYMLINK: use arguments instead of global variables

[Yann E. MORIN]

Romain, All,

On 2016-10-29 14:08 +0200, Romain Naour spake thusly:
> A new external toolchain package infrastructure will be introduced in a
> followup patch, so TOOLCHAIN_EXTERNAL_{CC,CFLAGS...} global variables
> will no longer exist. Instead, each external-toolchain packages will
> provide it's own <toolchain-external-name>_{CC,CFLAGS...} variables.

What's missing in this explanation is why those variables will no longer
exist.

But I guess that's inherent to the entire rework. In which case the
cover-letter should have had a global explanation on the rework, and
what it entails for those functions/macros.

> So additional arguments are needed to provide CC and CFLAG when calling
> TOOLCHAIN_EXTERNAL_CREATE_*_LIB_SYMLINK.
> 
> Signed-off-by: Romain Naour <romain.naour@gmail.com>

Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>

Regards,
Yann E. MORIN.

> ---
> v2: rework commit log/title (Arnout)
> ---
>  toolchain/toolchain-external/toolchain-external.mk | 18 +++++++++++++-----
>  1 file changed, 13 insertions(+), 5 deletions(-)
> 
> diff --git a/toolchain/toolchain-external/toolchain-external.mk b/toolchain/toolchain-external/toolchain-external.mk
> index b7a36be..d383d5f 100644
> --- a/toolchain/toolchain-external/toolchain-external.mk
> +++ b/toolchain/toolchain-external/toolchain-external.mk
> @@ -554,20 +554,28 @@ endif
>  # (as appropriate)
>  #
>  # $1: destination directory (TARGET_DIR / STAGING_DIR)
> +# $2: toolchain CC
> +# $3: toolchain CFLAGS
>  create_lib_symlinks = \
>         $(Q)DESTDIR="$(strip $1)" ; \
> -       ARCH_LIB_DIR="$(call toolchain_find_libdir,$(TOOLCHAIN_EXTERNAL_CC) $(TOOLCHAIN_EXTERNAL_CFLAGS))" ; \
> +       TOOLCHAIN_CC="$(strip $2)" ; \
> +       TOOLCHAIN_CFLAGS="$(strip $3)" ; \
> +       ARCH_LIB_DIR="$(call toolchain_find_libdir,$${TOOLCHAIN_CC} $${TOOLCHAIN_CFLAGS})" ; \
>         if [ ! -e "$${DESTDIR}/$${ARCH_LIB_DIR}" -a ! -e "$${DESTDIR}/usr/$${ARCH_LIB_DIR}" ]; then \
>                 ln -snf lib "$${DESTDIR}/$${ARCH_LIB_DIR}" ; \
>                 ln -snf lib "$${DESTDIR}/usr/$${ARCH_LIB_DIR}" ; \
>         fi
>  
> +# $1: toolchain CC
> +# $2: toolchain CFLAGS
>  define TOOLCHAIN_EXTERNAL_CREATE_STAGING_LIB_SYMLINK
> -       $(call create_lib_symlinks,$(STAGING_DIR))
> +       $(call create_lib_symlinks,$(STAGING_DIR),$(1),$(2))
>  endef
>  
> +# $1: toolchain CC
> +# $2: toolchain CFLAGS
>  define TOOLCHAIN_EXTERNAL_CREATE_TARGET_LIB_SYMLINK
> -       $(call create_lib_symlinks,$(TARGET_DIR))
> +       $(call create_lib_symlinks,$(TARGET_DIR),$(1),$(2))
>  endef
>  
>  # Integration of the toolchain into Buildroot: find the main sysroot
> @@ -781,7 +789,7 @@ TOOLCHAIN_EXTERNAL_BUILD_CMDS = $(TOOLCHAIN_WRAPPER_BUILD)
>  
>  define TOOLCHAIN_EXTERNAL_INSTALL_STAGING_CMDS
>  	$(TOOLCHAIN_WRAPPER_INSTALL)
> -	$(TOOLCHAIN_EXTERNAL_CREATE_STAGING_LIB_SYMLINK)
> +	$(call TOOLCHAIN_EXTERNAL_CREATE_STAGING_LIB_SYMLINK,$(TOOLCHAIN_EXTERNAL_CC),$(TOOLCHAIN_EXTERNAL_CFLAGS))
>  	$(TOOLCHAIN_EXTERNAL_INSTALL_SYSROOT_LIBS)
>  	$(TOOLCHAIN_EXTERNAL_INSTALL_SYSROOT_LIBS_BFIN_FDPIC)
>  	$(TOOLCHAIN_EXTERNAL_INSTALL_WRAPPER)
> @@ -792,7 +800,7 @@ endef
>  # and the target directory, we do everything within the
>  # install-staging step, arbitrarily.
>  define TOOLCHAIN_EXTERNAL_INSTALL_TARGET_CMDS
> -	$(TOOLCHAIN_EXTERNAL_CREATE_TARGET_LIB_SYMLINK)
> +	$(call TOOLCHAIN_EXTERNAL_CREATE_TARGET_LIB_SYMLINK,$(TOOLCHAIN_EXTERNAL_CC),$(TOOLCHAIN_EXTERNAL_CFLAGS))
>  	$(TOOLCHAIN_EXTERNAL_INSTALL_TARGET_LIBS)
>  	$(TOOLCHAIN_EXTERNAL_INSTALL_TARGET_GDBSERVER)
>  	$(TOOLCHAIN_EXTERNAL_INSTALL_TARGET_BFIN_FDPIC)
> -- 
> 2.5.5
> 
> _______________________________________________
> buildroot mailing list
> buildroot at busybox.net
> http://lists.busybox.net/mailman/listinfo/buildroot

-- 
.-----------------.--------------------.------------------.--------------------.
|  Yann E. MORIN  | Real-Time Embedded | /"\ ASCII RIBBON | Erics' conspiracy: |
| +33 662 376 056 | Software  Designer | \ / CAMPAIGN     |  ___               |
| +33 223 225 172 `------------.-------:  X  AGAINST      |  \e/  There is no  |
| http://ymorin.is-a-geek.org/ | _/*\_ | / \ HTML MAIL    |   v   conspiracy.  |
'------------------------------^-------^------------------^--------------------'

[Buildroot] [PATCH v2 02/23] toolchain-external: TOOLCHAIN_EXTERNAL_INSTALL_*_LIBS: use arguments instead of global variables

[Yann E. MORIN]

Romain, All,

On 2016-10-29 14:08 +0200, Romain Naour spake thusly:
> A new external toolchain package infrastructure will be introduced in a
> followup patch, so TOOLCHAIN_EXTERNAL_{CC,CFLAGS...} global variables
> will no longer exist. Instead, each external toolchain packages will
> provide it's own <toolchain-external-name>_{CC,CFLAGS...} variables.
> 
> So additional arguments are needed to provide CC and CFLAG when calling
> TOOLCHAIN_EXTERNAL_INSTALL_SYSROOT_LIBS,
> TOOLCHAIN_EXTERNAL_INSTALL_SYSROOT_LIBS_BFIN_FDPIC and
> TOOLCHAIN_EXTERNAL_INSTALL_TARGET_BFIN_FLAT
> 
> Also, an additional argument is needed to provide LIBS (the shared
> libraries list) when calling TOOLCHAIN_EXTERNAL_INSTALL_TARGET_LIBS to
> copy the external toolchain libraries to target.
> 
> Signed-off-by: Romain Naour <romain.naour@gmail.com>
> ---
> v2: rework commit log/title (Arnout)
> ---
>  toolchain/toolchain-external/toolchain-external.mk | 42 +++++++++++++---------
>  1 file changed, 25 insertions(+), 17 deletions(-)
> 
> diff --git a/toolchain/toolchain-external/toolchain-external.mk b/toolchain/toolchain-external/toolchain-external.mk
> index d383d5f..ddf77aa 100644
> --- a/toolchain/toolchain-external/toolchain-external.mk
> +++ b/toolchain/toolchain-external/toolchain-external.mk
> @@ -630,10 +630,11 @@ endef
>  # Buildroot, Crosstool-NG, CodeSourcery and Linaro
>  # before doing any modification on the below logic.
>  
> +# $1: toolchain LIBS
>  ifeq ($(BR2_STATIC_LIBS),)
>  define TOOLCHAIN_EXTERNAL_INSTALL_TARGET_LIBS
>  	$(Q)$(call MESSAGE,"Copying external toolchain libraries to target...")
> -	$(Q)for libs in $(TOOLCHAIN_EXTERNAL_LIBS); do \
> +	$(Q)for libs in $(1); do \
>  		$(call copy_toolchain_lib_root,$$libs); \
>  	done
>  endef
> @@ -662,13 +663,15 @@ define TOOLCHAIN_EXTERNAL_INSTALL_TARGET_GDBSERVER
>  endef
>  endif
>  
> +# $1: toolchain CC
> +# $2: toolchain CFLAGS
>  define TOOLCHAIN_EXTERNAL_INSTALL_SYSROOT_LIBS
> -	$(Q)SYSROOT_DIR="$(call toolchain_find_sysroot,$(TOOLCHAIN_EXTERNAL_CC))" ; \
> -	ARCH_SYSROOT_DIR="$(call toolchain_find_sysroot,$(TOOLCHAIN_EXTERNAL_CC) $(TOOLCHAIN_EXTERNAL_CFLAGS))" ; \
> -	ARCH_LIB_DIR="$(call toolchain_find_libdir,$(TOOLCHAIN_EXTERNAL_CC) $(TOOLCHAIN_EXTERNAL_CFLAGS))" ; \
> +	$(Q)SYSROOT_DIR="$(call toolchain_find_sysroot,$(1))" ; \
> +	ARCH_SYSROOT_DIR="$(call toolchain_find_sysroot,$(1) $(2))" ; \
> +	ARCH_LIB_DIR="$(call toolchain_find_libdir,$(1) $(2))" ; \
>  	SUPPORT_LIB_DIR="" ; \
>  	if test `find $${ARCH_SYSROOT_DIR} -name 'libstdc++.a' | wc -l` -eq 0 ; then \
> -		LIBSTDCPP_A_LOCATION=$$(LANG=C $(TOOLCHAIN_EXTERNAL_CC) $(TOOLCHAIN_EXTERNAL_CFLAGS) -print-file-name=libstdc++.a) ; \
> +		LIBSTDCPP_A_LOCATION=$$(LANG=C $(1) $(2) -print-file-name=libstdc++.a) ; \

For some functions/macros (like create_lib_symlinks in your previous
patch), $(1), $(2) etc... are assigned to local variables, while here
they are drectly used.

This is not very consistent.

I know that you are only changing the code "in place" without any
cleanup, but still, it would have been nice to take the opportunity to
add some consistency in those complex functions/macros.

Ditto below...

Otherwise:

Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>

Regards,
Yann E. MORIN.

>  		if [ -e "$${LIBSTDCPP_A_LOCATION}" ]; then \
>  			SUPPORT_LIB_DIR=`readlink -f $${LIBSTDCPP_A_LOCATION} | sed -r -e 's:libstdc\+\+\.a::'` ; \
>  		fi ; \
> @@ -689,24 +692,27 @@ endef
>  # FDPIC is not the primary binary format being used, but the user has
>  # nonetheless requested the installation of the FDPIC libraries to the
>  # target filesystem.
> +# $1: toolchain CC
> +# $2: toolchain CFLAGS
>  ifeq ($(BR2_BFIN_INSTALL_FDPIC_SHARED),y)
>  define TOOLCHAIN_EXTERNAL_INSTALL_SYSROOT_LIBS_BFIN_FDPIC
>  	$(Q)$(call MESSAGE,"Install external toolchain FDPIC libraries to staging...")
> -	$(Q)FDPIC_EXTERNAL_CC=$(dir $(TOOLCHAIN_EXTERNAL_CC))/../../bfin-linux-uclibc/bin/bfin-linux-uclibc-gcc ; \
> -	FDPIC_SYSROOT_DIR="$(call toolchain_find_sysroot,$${FDPIC_EXTERNAL_CC} $(TOOLCHAIN_EXTERNAL_CFLAGS))" ; \
> -	FDPIC_LIB_DIR="$(call toolchain_find_libdir,$${FDPIC_EXTERNAL_CC} $(TOOLCHAIN_EXTERNAL_CFLAGS))" ; \
> +	$(Q)FDPIC_EXTERNAL_CC=$(dir $(1))/../../bfin-linux-uclibc/bin/bfin-linux-uclibc-gcc ; \
> +	FDPIC_SYSROOT_DIR="$(call toolchain_find_sysroot,$${FDPIC_EXTERNAL_CC} $(2))" ; \
> +	FDPIC_LIB_DIR="$(call toolchain_find_libdir,$${FDPIC_EXTERNAL_CC} $(2))" ; \
>  	FDPIC_SUPPORT_LIB_DIR="" ; \
>  	if test `find $${FDPIC_SYSROOT_DIR} -name 'libstdc++.a' | wc -l` -eq 0 ; then \
> -	        FDPIC_LIBSTDCPP_A_LOCATION=$$(LANG=C $${FDPIC_EXTERNAL_CC} $(TOOLCHAIN_EXTERNAL_CFLAGS) -print-file-name=libstdc++.a) ; \
> +	        FDPIC_LIBSTDCPP_A_LOCATION=$$(LANG=C $${FDPIC_EXTERNAL_CC} $(2) -print-file-name=libstdc++.a) ; \
>  	        if [ -e "$${FDPIC_LIBSTDCPP_A_LOCATION}" ]; then \
>  	                FDPIC_SUPPORT_LIB_DIR=`readlink -f $${FDPIC_LIBSTDCPP_A_LOCATION} | sed -r -e 's:libstdc\+\+\.a::'` ; \
>  	        fi ; \
>  	fi ; \
>  	$(call copy_toolchain_sysroot,$${FDPIC_SYSROOT_DIR},$${FDPIC_SYSROOT_DIR},,$${FDPIC_LIB_DIR},$${FDPIC_SUPPORT_LIB_DIR})
>  endef
> +# $1: toolchain LIBS
>  define TOOLCHAIN_EXTERNAL_INSTALL_TARGET_BFIN_FDPIC
>  	$(Q)$(call MESSAGE,"Install external toolchain FDPIC libraries to target...")
> -	$(Q)for libs in $(TOOLCHAIN_EXTERNAL_LIBS); do \
> +	$(Q)for libs in $(1); do \
>  		$(call copy_toolchain_lib_root,$$libs); \
>  	done
>  endef
> @@ -718,11 +724,13 @@ endif
>  # to the target filesystem. The flat libraries are found and linked
>  # according to the index in name "libN.so". Index 1 is reserved for
>  # the standard C library. Customer libraries can use 4 and above.
> +# $1: toolchain CC
> +# $2: toolchain CFLAGS
>  ifeq ($(BR2_BFIN_INSTALL_FLAT_SHARED),y)
>  define TOOLCHAIN_EXTERNAL_INSTALL_TARGET_BFIN_FLAT
>  	$(Q)$(call MESSAGE,"Install external toolchain FLAT libraries to target...")
> -	$(Q)FLAT_EXTERNAL_CC=$(dir $(TOOLCHAIN_EXTERNAL_CC))../../bfin-uclinux/bin/bfin-uclinux-gcc ; \
> -	FLAT_LIBC_A_LOCATION=`$${FLAT_EXTERNAL_CC} $(TOOLCHAIN_EXTERNAL_CFLAGS) -mid-shared-library -print-file-name=libc`; \
> +	$(Q)FLAT_EXTERNAL_CC=$(dir $(1))../../bfin-uclinux/bin/bfin-uclinux-gcc ; \
> +	FLAT_LIBC_A_LOCATION=`$${FLAT_EXTERNAL_CC} $(2) -mid-shared-library -print-file-name=libc`; \
>  	if [ -f $${FLAT_LIBC_A_LOCATION} -a ! -h $${FLAT_LIBC_A_LOCATION} ] ; then \
>  	        $(INSTALL) -D $${FLAT_LIBC_A_LOCATION} $(TARGET_DIR)/lib/lib1.so; \
>  	fi
> @@ -790,8 +798,8 @@ TOOLCHAIN_EXTERNAL_BUILD_CMDS = $(TOOLCHAIN_WRAPPER_BUILD)
>  define TOOLCHAIN_EXTERNAL_INSTALL_STAGING_CMDS
>  	$(TOOLCHAIN_WRAPPER_INSTALL)
>  	$(call TOOLCHAIN_EXTERNAL_CREATE_STAGING_LIB_SYMLINK,$(TOOLCHAIN_EXTERNAL_CC),$(TOOLCHAIN_EXTERNAL_CFLAGS))
> -	$(TOOLCHAIN_EXTERNAL_INSTALL_SYSROOT_LIBS)
> -	$(TOOLCHAIN_EXTERNAL_INSTALL_SYSROOT_LIBS_BFIN_FDPIC)
> +	$(call TOOLCHAIN_EXTERNAL_INSTALL_SYSROOT_LIBS,$(TOOLCHAIN_EXTERNAL_CC),$(TOOLCHAIN_EXTERNAL_CFLAGS))
> +	$(call TOOLCHAIN_EXTERNAL_INSTALL_SYSROOT_LIBS_BFIN_FDPIC,$(TOOLCHAIN_EXTERNAL_CC),$(TOOLCHAIN_EXTERNAL_CFLAGS))
>  	$(TOOLCHAIN_EXTERNAL_INSTALL_WRAPPER)
>  	$(TOOLCHAIN_EXTERNAL_INSTALL_GDBINIT)
>  endef
> @@ -801,10 +809,10 @@ endef
>  # install-staging step, arbitrarily.
>  define TOOLCHAIN_EXTERNAL_INSTALL_TARGET_CMDS
>  	$(call TOOLCHAIN_EXTERNAL_CREATE_TARGET_LIB_SYMLINK,$(TOOLCHAIN_EXTERNAL_CC),$(TOOLCHAIN_EXTERNAL_CFLAGS))
> -	$(TOOLCHAIN_EXTERNAL_INSTALL_TARGET_LIBS)
> +	$(call TOOLCHAIN_EXTERNAL_INSTALL_TARGET_LIBS,$(TOOLCHAIN_EXTERNAL_LIBS))
>  	$(TOOLCHAIN_EXTERNAL_INSTALL_TARGET_GDBSERVER)
> -	$(TOOLCHAIN_EXTERNAL_INSTALL_TARGET_BFIN_FDPIC)
> -	$(TOOLCHAIN_EXTERNAL_INSTALL_TARGET_BFIN_FLAT)
> +	$(call TOOLCHAIN_EXTERNAL_INSTALL_TARGET_BFIN_FDPIC,$(TOOLCHAIN_EXTERNAL_LIBS))
> +	$(call TOOLCHAIN_EXTERNAL_INSTALL_TARGET_BFIN_FLAT,$(TOOLCHAIN_EXTERNAL_CC),$(TOOLCHAIN_EXTERNAL_CFLAGS))
>  	$(TOOLCHAIN_EXTERNAL_FIXUP_UCLIBCNG_LDSO)
>  endef
>  
> -- 
> 2.5.5
> 
> _______________________________________________
> buildroot mailing list
> buildroot at busybox.net
> http://lists.busybox.net/mailman/listinfo/buildroot

-- 
.-----------------.--------------------.------------------.--------------------.
|  Yann E. MORIN  | Real-Time Embedded | /"\ ASCII RIBBON | Erics' conspiracy: |
| +33 662 376 056 | Software  Designer | \ / CAMPAIGN     |  ___               |
| +33 223 225 172 `------------.-------:  X  AGAINST      |  \e/  There is no  |
| http://ymorin.is-a-geek.org/ | _/*\_ | / \ HTML MAIL    |   v   conspiracy.  |
'------------------------------^-------^------------------^--------------------'

[Buildroot] [PATCH v2 03/23] toolchain-external: TOOLCHAIN_EXTERNAL_INSTALL_WRAPPER: use arguments instead of global variables

[Yann E. MORIN]

Romain, All,

On 2016-10-29 14:08 +0200, Romain Naour spake thusly:
> A new external toolchain package infrastructure will be introduced in a
> followup patch, so TOOLCHAIN_EXTERNAL_{CC,CFLAGS...} global variables
> will no longer exist. Instead, each external toolchain packages will
> provide it's own <toolchain-external-name>_{CC,CFLAGS...} variables.
> 
> For the case of the toolchain wrapper install, CROSS is needed when
> calling TOOLCHAIN_EXTERNAL_INSTALL_WRAPPER.
> 
> Signed-off-by: Romain Naour <romain.naour@gmail.com>

Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>

But see below...

> ---
> v2: rework commit log/title (Arnout)
> ---
>  toolchain/toolchain-external/toolchain-external.mk | 5 +++--
>  1 file changed, 3 insertions(+), 2 deletions(-)
> 
> diff --git a/toolchain/toolchain-external/toolchain-external.mk b/toolchain/toolchain-external/toolchain-external.mk
> index ddf77aa..84b6a03 100644
> --- a/toolchain/toolchain-external/toolchain-external.mk
> +++ b/toolchain/toolchain-external/toolchain-external.mk
> @@ -746,9 +746,10 @@ endif
>  # used. However, we should not add the toolchain wrapper for them, and they
>  # match the *cc-* pattern. Therefore, an additional case is added for *-ar,
>  # *-ranlib and *-nm.
> +# $1 toolchain CROSS
>  define TOOLCHAIN_EXTERNAL_INSTALL_WRAPPER
>  	$(Q)cd $(HOST_DIR)/usr/bin; \
> -	for i in $(TOOLCHAIN_EXTERNAL_CROSS)*; do \
> +	for i in $(1)*; do \

Again, for consistency with other functions/macros, it would have been
nice to introduce a local variable.

Regards,
Yann E. MORIN.

>  		base=$${i##*/}; \
>  		case "$$base" in \
>  		*-ar|*-ranlib|*-nm) \
> @@ -800,7 +801,7 @@ define TOOLCHAIN_EXTERNAL_INSTALL_STAGING_CMDS
>  	$(call TOOLCHAIN_EXTERNAL_CREATE_STAGING_LIB_SYMLINK,$(TOOLCHAIN_EXTERNAL_CC),$(TOOLCHAIN_EXTERNAL_CFLAGS))
>  	$(call TOOLCHAIN_EXTERNAL_INSTALL_SYSROOT_LIBS,$(TOOLCHAIN_EXTERNAL_CC),$(TOOLCHAIN_EXTERNAL_CFLAGS))
>  	$(call TOOLCHAIN_EXTERNAL_INSTALL_SYSROOT_LIBS_BFIN_FDPIC,$(TOOLCHAIN_EXTERNAL_CC),$(TOOLCHAIN_EXTERNAL_CFLAGS))
> -	$(TOOLCHAIN_EXTERNAL_INSTALL_WRAPPER)
> +	$(call TOOLCHAIN_EXTERNAL_INSTALL_WRAPPER,$(TOOLCHAIN_EXTERNAL_CROSS))
>  	$(TOOLCHAIN_EXTERNAL_INSTALL_GDBINIT)
>  endef
>  
> -- 
> 2.5.5
> 
> _______________________________________________
> buildroot mailing list
> buildroot at busybox.net
> http://lists.busybox.net/mailman/listinfo/buildroot

-- 
.-----------------.--------------------.------------------.--------------------.
|  Yann E. MORIN  | Real-Time Embedded | /"\ ASCII RIBBON | Erics' conspiracy: |
| +33 662 376 056 | Software  Designer | \ / CAMPAIGN     |  ___               |
| +33 223 225 172 `------------.-------:  X  AGAINST      |  \e/  There is no  |
| http://ymorin.is-a-geek.org/ | _/*\_ | / \ HTML MAIL    |   v   conspiracy.  |
'------------------------------^-------^------------------^--------------------'

[Buildroot] [PATCH v2 04/23] toolchain-external: TOOLCHAIN_EXTERNAL_INSTALL_TARGET_GDBSERVER: use arguments instead of global variables

[Yann E. MORIN]

Romain, All,

On 2016-10-29 14:08 +0200, Romain Naour spake thusly:
> A new external toolchain package infrastructure will be introduced in a
> followup patch, so TOOLCHAIN_EXTERNAL_{CC,CFLAGS...} global variables
> will no longer exist. Instead, each external-toolchain packages will
> provide it's own <toolchain-external-name>_{CC,CFLAGS...} variables.
> 
> So additional arguments are needed to provide CC, CFLAG and INSTALL_DIR
> when calling TOOLCHAIN_EXTERNAL_INSTALL_TARGET_GDBSERVER.
> 
> Signed-off-by: Romain Naour <romain.naour@gmail.com>

Reviewed-by: "Yann E. MORIN" <yann.morin.1998@free.fr>

But see below...

> ---
> v2: rework commit log/title (Arnout)
> ---
>  toolchain/toolchain-external/toolchain-external.mk | 11 +++++++----
>  1 file changed, 7 insertions(+), 4 deletions(-)
> 
> diff --git a/toolchain/toolchain-external/toolchain-external.mk b/toolchain/toolchain-external/toolchain-external.mk
> index 84b6a03..6ae4bf5 100644
> --- a/toolchain/toolchain-external/toolchain-external.mk
> +++ b/toolchain/toolchain-external/toolchain-external.mk
> @@ -640,16 +640,19 @@ define TOOLCHAIN_EXTERNAL_INSTALL_TARGET_LIBS
>  endef
>  endif
>  
> +# $1: toolchain CC
> +# $2: toolchain CFLAGS
> +# $3: toolchain INSTALL_DIR
>  ifeq ($(BR2_TOOLCHAIN_EXTERNAL_GDB_SERVER_COPY),y)
>  define TOOLCHAIN_EXTERNAL_INSTALL_TARGET_GDBSERVER
>  	$(Q)$(call MESSAGE,"Copying gdbserver")
> -	$(Q)ARCH_SYSROOT_DIR="$(call toolchain_find_sysroot,$(TOOLCHAIN_EXTERNAL_CC) $(TOOLCHAIN_EXTERNAL_CFLAGS))" ; \
> -	ARCH_LIB_DIR="$(call toolchain_find_libdir,$(TOOLCHAIN_EXTERNAL_CC) $(TOOLCHAIN_EXTERNAL_CFLAGS))" ; \
> +	$(Q)ARCH_SYSROOT_DIR="$(call toolchain_find_sysroot,$(1) $(2))" ; \
> +	ARCH_LIB_DIR="$(call toolchain_find_libdir,$(1) $(2))" ; \
>  	gdbserver_found=0 ; \
>  	for d in $${ARCH_SYSROOT_DIR}/usr \
>  		 $${ARCH_SYSROOT_DIR}/../debug-root/usr \
>  		 $${ARCH_SYSROOT_DIR}/usr/$${ARCH_LIB_DIR} \
> -		 $(TOOLCHAIN_EXTERNAL_INSTALL_DIR); do \
> +		 $(3); do \
>  		if test -f $${d}/bin/gdbserver ; then \
>  			install -m 0755 -D $${d}/bin/gdbserver $(TARGET_DIR)/usr/bin/gdbserver ; \
>  			gdbserver_found=1 ; \
> @@ -811,7 +814,7 @@ endef
>  define TOOLCHAIN_EXTERNAL_INSTALL_TARGET_CMDS
>  	$(call TOOLCHAIN_EXTERNAL_CREATE_TARGET_LIB_SYMLINK,$(TOOLCHAIN_EXTERNAL_CC),$(TOOLCHAIN_EXTERNAL_CFLAGS))
>  	$(call TOOLCHAIN_EXTERNAL_INSTALL_TARGET_LIBS,$(TOOLCHAIN_EXTERNAL_LIBS))
> -	$(TOOLCHAIN_EXTERNAL_INSTALL_TARGET_GDBSERVER)
> +	$(call TOOLCHAIN_EXTERNAL_INSTALL_TARGET_GDBSERVER,$(TOOLCHAIN_EXTERNAL_CC),$(TOOLCHAIN_EXTERNAL_CFLAGS),$(TOOLCHAIN_EXTERNAL_INSTALL_DIR))
>  	$(call TOOLCHAIN_EXTERNAL_INSTALL_TARGET_BFIN_FDPIC,$(TOOLCHAIN_EXTERNAL_LIBS))
>  	$(call TOOLCHAIN_EXTERNAL_INSTALL_TARGET_BFIN_FLAT,$(TOOLCHAIN_EXTERNAL_CC),$(TOOLCHAIN_EXTERNAL_CFLAGS))
>  	$(TOOLCHAIN_EXTERNAL_FIXUP_UCLIBCNG_LDSO)

Now, TOOLCHAIN_EXTERNAL_FIXUP_UCLIBCNG_LDSO is the only macro that is
not $(call)ed. Maybe change it for consistency with the rest?

Regards,
Yann E. MORIN.

> -- 
> 2.5.5
> 
> _______________________________________________
> buildroot mailing list
> buildroot at busybox.net
> http://lists.busybox.net/mailman/listinfo/buildroot

-- 
.-----------------.--------------------.------------------.--------------------.
|  Yann E. MORIN  | Real-Time Embedded | /"\ ASCII RIBBON | Erics' conspiracy: |
| +33 662 376 056 | Software  Designer | \ / CAMPAIGN     |  ___               |
| +33 223 225 172 `------------.-------:  X  AGAINST      |  \e/  There is no  |
| http://ymorin.is-a-geek.org/ | _/*\_ | / \ HTML MAIL    |   v   conspiracy.  |
'------------------------------^-------^------------------^--------------------'

[Buildroot] [PATCH v2 05/23] toolchain-external-blackfin-uclinux: new package

[Yann E. MORIN]

Romain, All,

On 2016-10-29 14:08 +0200, Romain Naour spake thusly:
> From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
> 
> This commit adds a new package for the Analog Devices external
> toolchain for the Blackfin architecture. As of this commit, the code
> is currently not used, but it will be used as soon as the external
> toolchain infrastructure gets introduced in a future commit.
> 
> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
> Signed-off-by: Romain Naour <romain.naour@gmail.com>
> ---
>  .../toolchain-external-blackfin-uclinux/Config.in  | 17 ++++++++++
>  .../Config.in.options                              |  6 ++++
>  .../toolchain-external-blackfin-uclinux.hash       |  3 ++
>  .../toolchain-external-blackfin-uclinux.mk         | 36 ++++++++++++++++++++++
>  4 files changed, 62 insertions(+)
>  create mode 100644 toolchain/toolchain-external/toolchain-external-blackfin-uclinux/Config.in
>  create mode 100644 toolchain/toolchain-external/toolchain-external-blackfin-uclinux/Config.in.options
>  create mode 100644 toolchain/toolchain-external/toolchain-external-blackfin-uclinux/toolchain-external-blackfin-uclinux.hash
>  create mode 100644 toolchain/toolchain-external/toolchain-external-blackfin-uclinux/toolchain-external-blackfin-uclinux.mk
> 
> diff --git a/toolchain/toolchain-external/toolchain-external-blackfin-uclinux/Config.in b/toolchain/toolchain-external/toolchain-external-blackfin-uclinux/Config.in
> new file mode 100644
> index 0000000..8b299e8
> --- /dev/null
> +++ b/toolchain/toolchain-external/toolchain-external-blackfin-uclinux/Config.in
> @@ -0,0 +1,17 @@
> +config BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX
> +	bool "Blackfin.uclinux.org 2014R1"
> +	depends on BR2_bfin
> +	depends on BR2_HOSTARCH = "x86_64" || BR2_HOSTARCH = "x86"
> +	select BR2_TOOLCHAIN_EXTERNAL_UCLIBC
> +	select BR2_INSTALL_LIBSTDCPP
> +	select BR2_TOOLCHAIN_HAS_NATIVE_RPC
> +	select BR2_USE_WCHAR
> +	select BR2_TOOLCHAIN_HAS_THREADS
> +	select BR2_TOOLCHAIN_HAS_THREADS_DEBUG
> +	select BR2_HOSTARCH_NEEDS_IA32_LIBS
> +	select BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_10
> +	select BR2_TOOLCHAIN_GCC_AT_LEAST_4_3
> +	select BR2_TOOLCHAIN_HAS_FORTRAN
> +	help
> +	  Toolchain for the Blackfin architecture, from
> +	  http://blackfin.uclinux.org.
> diff --git a/toolchain/toolchain-external/toolchain-external-blackfin-uclinux/Config.in.options b/toolchain/toolchain-external/toolchain-external-blackfin-uclinux/Config.in.options
> new file mode 100644
> index 0000000..a13cbba
> --- /dev/null
> +++ b/toolchain/toolchain-external/toolchain-external-blackfin-uclinux/Config.in.options
> @@ -0,0 +1,6 @@
> +if BR2_TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX
> +
> +config BR2_PACKAGE_PROVIDES_TOOLCHAIN_EXTERNAL
> +	default "toolchain-external-blackfin-uclinux"

This make-it-a-provider-of-a-not-yet-existing-virtual-pakage makes me
really chill... :-/

But see [*] below...

> +endif
> diff --git a/toolchain/toolchain-external/toolchain-external-blackfin-uclinux/toolchain-external-blackfin-uclinux.hash b/toolchain/toolchain-external/toolchain-external-blackfin-uclinux/toolchain-external-blackfin-uclinux.hash
> new file mode 100644
> index 0000000..b320d94
> --- /dev/null
> +++ b/toolchain/toolchain-external/toolchain-external-blackfin-uclinux/toolchain-external-blackfin-uclinux.hash
> @@ -0,0 +1,3 @@
> +# Locally calculated
> +sha256 e424e90d8481d942a40266d78d1488726561fed3ec38403094f98055e61889d0  blackfin-toolchain-2014R1-RC2.i386.tar.bz2
> +sha256 c65b1b4b918d5185349d62a3b7bf43b4b21e1175c52598ec047ca56b3f11d857  blackfin-toolchain-uclibc-full-2014R1-RC2.i386.tar.bz2
> diff --git a/toolchain/toolchain-external/toolchain-external-blackfin-uclinux/toolchain-external-blackfin-uclinux.mk b/toolchain/toolchain-external/toolchain-external-blackfin-uclinux/toolchain-external-blackfin-uclinux.mk
> new file mode 100644
> index 0000000..0c3eb9b
> --- /dev/null
> +++ b/toolchain/toolchain-external/toolchain-external-blackfin-uclinux/toolchain-external-blackfin-uclinux.mk
> @@ -0,0 +1,36 @@
> +################################################################################
> +#
> +# toolchain-external-blackfin-uclinux
> +#
> +################################################################################
> +
> +TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_VERSION = 2014R1-RC2
> +
> +ifeq ($(BR2_BINFMT_FLAT),y)
> +TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_SUBDIR = bfin-uclinux
> +TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_PREFIX = bfin-uclinux
> +else
> +TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_SUBDIR = bfin-linux-uclibc
> +TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_PREFIX = bfin-linux-uclibc
> +endif
> +
> +TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_VERSION_MAJOR = $(firstword $(subst -, ,$(TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_VERSION)))
> +
> +TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_SITE = http://downloads.sourceforge.net/project/adi-toolchain/$(TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_VERSION_MAJOR)/$(TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_VERSION)/i386
> +TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_SOURCE = blackfin-toolchain-$(TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_VERSION).i386.tar.bz2
> +TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_EXTRA_DOWNLOADS = blackfin-toolchain-uclibc-full-$(TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_VERSION).i386.tar.bz2
> +
> +TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_STRIP_COMPONENTS = 3
> +
> +# Special handling for Blackfin toolchain, because of the split in two
> +# tarballs, and the organization of tarball contents. The tarballs
> +# contain ./opt/uClinux/{bfin-uclinux,bfin-linux-uclibc} directories,
> +# which themselves contain the toolchain. This is why we strip more
> +# components than usual.
> +define TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_UCLIBC_EXTRA_EXTRACT
> +	$(call suitable-extractor,$(TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_EXTRA_DOWNLOADS)) $(DL_DIR)/$(TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_EXTRA_DOWNLOADS) | \
> +		$(TAR) --strip-components=3 -C $(@D) $(TAR_OPTIONS) -
> +endef
> +TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_POST_EXTRACT_HOOKS += TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_UCLIBC_EXTRA_EXTRACT
> +
> +$(eval $(toolchain-external-package))

[*] Ditto: this use-a-not-yet-existing-infra is not nice.

I think you could very well:

 1- introduce an empty infra that does nothing at all, except it does
    exist;

 2- introduce the virtual package. It would not kick any dependency
    until much later, but it would exist.

 3- add the per pre-built toolchain packages liek you did

 4- implement the new infra

 5- turn toolchain/toolchain-external/toolchain-external.mk from a
    generic package to a virtual package

Regards,
Yann E. MORIN.

-- 
.-----------------.--------------------.------------------.--------------------.
|  Yann E. MORIN  | Real-Time Embedded | /"\ ASCII RIBBON | Erics' conspiracy: |
| +33 662 376 056 | Software  Designer | \ / CAMPAIGN     |  ___               |
| +33 223 225 172 `------------.-------:  X  AGAINST      |  \e/  There is no  |
| http://ymorin.is-a-geek.org/ | _/*\_ | / \ HTML MAIL    |   v   conspiracy.  |
'------------------------------^-------^------------------^--------------------'

[Buildroot] [PATCH v2 05/23] toolchain-external-blackfin-uclinux: new package

[Yann E. MORIN]

Romain, All,

Now for the review of this one external toolchain...

On 2016-10-29 14:08 +0200, Romain Naour spake thusly:
> From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
> 
> This commit adds a new package for the Analog Devices external
> toolchain for the Blackfin architecture. As of this commit, the code
> is currently not used, but it will be used as soon as the external
> toolchain infrastructure gets introduced in a future commit.
> 
> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
> Signed-off-by: Romain Naour <romain.naour@gmail.com>
[--SNIP--]
> diff --git a/toolchain/toolchain-external/toolchain-external-blackfin-uclinux/toolchain-external-blackfin-uclinux.mk b/toolchain/toolchain-external/toolchain-external-blackfin-uclinux/toolchain-external-blackfin-uclinux.mk
> new file mode 100644
> index 0000000..0c3eb9b
> --- /dev/null
> +++ b/toolchain/toolchain-external/toolchain-external-blackfin-uclinux/toolchain-external-blackfin-uclinux.mk
> @@ -0,0 +1,36 @@
> +################################################################################
> +#
> +# toolchain-external-blackfin-uclinux
> +#
> +################################################################################
> +
> +TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_VERSION = 2014R1-RC2

    TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_VERSION_MAJOR = 2014R1
    TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_VERSION = $(TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_VERSION_MAJOR)-RC2

Then drop the computation below...

> +ifeq ($(BR2_BINFMT_FLAT),y)
> +TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_SUBDIR = bfin-uclinux
> +TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_PREFIX = bfin-uclinux
> +else
> +TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_SUBDIR = bfin-linux-uclibc
> +TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_PREFIX = bfin-linux-uclibc
> +endif
> +
> +TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_VERSION_MAJOR = $(firstword $(subst -, ,$(TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_VERSION)))

... here.

Regards,
Yann E. MORIN.

> +TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_SITE = http://downloads.sourceforge.net/project/adi-toolchain/$(TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_VERSION_MAJOR)/$(TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_VERSION)/i386
> +TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_SOURCE = blackfin-toolchain-$(TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_VERSION).i386.tar.bz2
> +TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_EXTRA_DOWNLOADS = blackfin-toolchain-uclibc-full-$(TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_VERSION).i386.tar.bz2
> +
> +TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_STRIP_COMPONENTS = 3
> +
> +# Special handling for Blackfin toolchain, because of the split in two
> +# tarballs, and the organization of tarball contents. The tarballs
> +# contain ./opt/uClinux/{bfin-uclinux,bfin-linux-uclibc} directories,
> +# which themselves contain the toolchain. This is why we strip more
> +# components than usual.
> +define TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_UCLIBC_EXTRA_EXTRACT
> +	$(call suitable-extractor,$(TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_EXTRA_DOWNLOADS)) $(DL_DIR)/$(TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_EXTRA_DOWNLOADS) | \
> +		$(TAR) --strip-components=3 -C $(@D) $(TAR_OPTIONS) -
> +endef
> +TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_POST_EXTRACT_HOOKS += TOOLCHAIN_EXTERNAL_BLACKFIN_UCLINUX_UCLIBC_EXTRA_EXTRACT
> +
> +$(eval $(toolchain-external-package))
> -- 
> 2.5.5
> 
> _______________________________________________
> buildroot mailing list
> buildroot at busybox.net
> http://lists.busybox.net/mailman/listinfo/buildroot

-- 
.-----------------.--------------------.------------------.--------------------.
|  Yann E. MORIN  | Real-Time Embedded | /"\ ASCII RIBBON | Erics' conspiracy: |
| +33 662 376 056 | Software  Designer | \ / CAMPAIGN     |  ___               |
| +33 223 225 172 `------------.-------:  X  AGAINST      |  \e/  There is no  |
| http://ymorin.is-a-geek.org/ | _/*\_ | / \ HTML MAIL    |   v   conspiracy.  |
'------------------------------^-------^------------------^--------------------'

[Buildroot] [PATCH v2 05/23] toolchain-external-blackfin-uclinux: new package

[Thomas Petazzoni]

Hello,

On Sun, 30 Oct 2016 17:47:52 +0100, Yann E. MORIN wrote:

> I think you could very well:
> 
>  1- introduce an empty infra that does nothing at all, except it does
>     exist;
> 
>  2- introduce the virtual package. It would not kick any dependency
>     until much later, but it would exist.

The virtual package should be named "toolchain-external", which clashes
with the existing "toolchain-external" package that you remove in step
(5). So you can't do your step (2) before doing your step (5), unless
of course you name the packages differently.

And all in all it doesn't change anything: it creates packages that are
not used/referenced by anything, until your step (5). Which is exactly
what's already happening.

So it's really a matter of taste of what is the less ugly option, but
all options will introduce code that is orphaned until the final commit
that switches everything over. With this in mind, going for one option
or another really doesn't make much difference. And knowing how painful
it is to keep this series up-to-date, I'm personally happy with the
current way things are introduced.

>  3- add the per pre-built toolchain packages liek you did
> 
>  4- implement the new infra
> 
>  5- turn toolchain/toolchain-external/toolchain-external.mk from a
>     generic package to a virtual package

Best regards,

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com

[Buildroot] [PATCH v2 05/23] toolchain-external-blackfin-uclinux: new package

[Yann E. MORIN]

Thomas, All,

On 2016-10-30 18:37 +0100, Thomas Petazzoni spake thusly:
> Hello,
> 
> On Sun, 30 Oct 2016 17:47:52 +0100, Yann E. MORIN wrote:
> 
> > I think you could very well:
> > 
> >  1- introduce an empty infra that does nothing at all, except it does
> >     exist;
> > 
> >  2- introduce the virtual package. It would not kick any dependency
> >     until much later, but it would exist.
> 
> The virtual package should be named "toolchain-external", which clashes
> with the existing "toolchain-external" package that you remove in step
> (5). So you can't do your step (2) before doing your step (5), unless
> of course you name the packages differently.

A virtual package is but a generic package, so nothing prevents it from
having its own _CMDS macros; it can download, configure and build stuff
of its own.

Alternatively, you can have the toolchain-external package depend on
each of the new toochain-external-foo when it is added, as a kind of
manually-handled virtual package, before eventually converting it to a
real virtual package once everything as been split out to individual
providers.

That's what I'm doing with the split of the skeleton package to handle
systemd, by the way. It works nicely and makes for a series that is
fully operational at each step.

> And all in all it doesn't change anything: it creates packages that are
> not used/referenced by anything, until your step (5). Which is exactly
> what's already happening.
> 
> So it's really a matter of taste of what is the less ugly option, but
> all options will introduce code that is orphaned until the final commit
> that switches everything over.

Not if, as I stated above, you make them real package from the onset, on
which tooclhain-external depends.

Yes, this is a bit more work. But it makes the series fully bisectable,
with each commit adding code that *is* actually used at the time it is
added. Adding code that is unused is not good, because the only option
in case something goes amiss is to just revert the whole stuff rather
than the failing hunks...

> With this in mind, going for one option
> or another really doesn't make much difference. And knowing how painful
> it is to keep this series up-to-date, I'm personally happy with the
> current way things are introduced.

Since when is "maintaining this series is painful" a rationale for
applying said series?

I've known (and maintained and still maintain) series that were (are)
more difficukt to maintain than this one. And yet, you rarely if ever
argued those series should be applied just because they were hard to
maintain...  (And I'm not speaking only for my own series, far from
it.)

> >  3- add the per pre-built toolchain packages liek you did
> > 
> >  4- implement the new infra
> > 
> >  5- turn toolchain/toolchain-external/toolchain-external.mk from a
> >     generic package to a virtual package

But maybe the order I described is not the best...

Anyway, just go ahead and commit this series; a cleanup in there is long
overdue.

Regards,
Yann E. MORIN.

-- 
.-----------------.--------------------.------------------.--------------------.
|  Yann E. MORIN  | Real-Time Embedded | /"\ ASCII RIBBON | Erics' conspiracy: |
| +33 662 376 056 | Software  Designer | \ / CAMPAIGN     |  ___               |
| +33 223 225 172 `------------.-------:  X  AGAINST      |  \e/  There is no  |
| http://ymorin.is-a-geek.org/ | _/*\_ | / \ HTML MAIL    |   v   conspiracy.  |
'------------------------------^-------^------------------^--------------------'

[Buildroot] [PATCH v2 23/23] toolchain-external: introduce and use external toolchain infra

[Romain Naour]

Hi All,

Le 29/10/2016 ? 14:09, Romain Naour a ?crit :
> This fairly large commit is needed to switch in one atomic change from
> the old single package based external toolchain handling, to a
> mechanism based on a common external toolchain package infrastructure
> and separate packages for each toolchain family. The purpose is to
> clearly separate the common external toolchain logic from the
> toolchain-specific details and generally make the external toolchain
> code hopefully easier to maintain.
> 
> To achieve this, this commit:
> 
>  - Introduce in pkg-toolchain-external.mk the
>      'toolchain-external-package' macro, which is the core of the
>      external toolchain package infrastructure. Like any other package
>      infrastructure, it defines a number of variables and provides a
>      behavior for the configure, build and install steps.
> 
>    - Turn the toolchain-external.mk file in a simple virtual package,
>      which automatically depends on the selected external
>      toolchain. Like any other virtual package, the Kconfig variable
>      BR2_PACKAGE_PROVIDES_TOOLCHAIN_EXTERNAL indicates which package is
>      providing the currently selected toolchain.
> 
>    - Removes all the toolchain-specific definitions from
>      toolchain/toolchain-external/Config.in as well as the hash file,
>      and instead use the per-toolchain packages in the subdirectories
>      toolchain/toolchain-external/*/.
> 
>    - Wine: Use $(TOOLCHAIN_EXTERNAL_PREFIX) instead of
>      $(BR2_TOOLCHAIN_EXTERNAL_PREFIX) which was removed.
> 
>    - Remove the old toolchain-external.hash file. The hash is now
>      provided by the toolchain package.
> 
> Notes:
>    - The hack for setting TOOLCHAIN_EXTERNAL_BIN for the ADI bfin
>      toolchain is no longer needed.
> 
> Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
> Signed-off-by: Romain Naour <romain.naour@gmail.com>
> ---
> v2: - merge all pkg-toolchain-external* into pkg-toolchain-external.mk (Arnout)
>     - rebase on master
> 
>     fix two big issue:
>     1) TOOLCHAIN_EXTERNAL_COMMON_WRAPPER_ARGS were not included in the
>        toolchain wrapper.
>     2) TOOLCHAIN_EXTERNAL_CFLAGS wasn't included in $(2)_CFLAGS, same
>        for TOOLCHAIN_EXTERNAL_LIBS and $(2)_LIBS. So no libraries were
>        intalled in target.
> ---

[...]

> +source "toolchain/toolchain-external/toolchain-external-blackfin-uclinux/Config.in"
> +source "toolchain/toolchain-external/toolchain-external-arago-armv5te/Config.in"
> +source "toolchain/toolchain-external/toolchain-external-arago-armv7a/Config.in"
> +source "toolchain/toolchain-external/toolchain-external-codescape-mti-mips/Config.in"
> +source "toolchain/toolchain-external/toolchain-external-codescape-img-mips/Config.in"
> +source "toolchain/toolchain-external/toolchain-external-linaro-aarch64/Config.in"
> +source "toolchain/toolchain-external/toolchain-external-linaro-arm/Config.in"
> +source "toolchain/toolchain-external/toolchain-external-linaro-armeb/Config.in"
> +source "toolchain/toolchain-external/toolchain-external-musl-cross/Config.in"
> +source "toolchain/toolchain-external/toolchain-external-codesourcery-aarch64/Config.in"
> +source "toolchain/toolchain-external/toolchain-external-codesourcery-amd64/Config.in"
> +source "toolchain/toolchain-external/toolchain-external-codesourcery-arm/Config.in"
> +source "toolchain/toolchain-external/toolchain-external-codesourcery-mips/Config.in"
> +source "toolchain/toolchain-external/toolchain-external-codesourcery-niosII/Config.in"
> +source "toolchain/toolchain-external/toolchain-external-codesourcery-sh/Config.in"
> +source "toolchain/toolchain-external/toolchain-external-codesourcery-x86/Config.in"

The codesourcery toolchains were named sourcery in a previous version of this
series, but now it's not sorted alphabetically.
Also, for ARM the default toochain choice is arago which is an very old
toolchain (2011), do we want to keep the default ARM choice to linaro or
codesourcery toolchain ?

With the change, some existing defconfig will not use the same toolchain.

Best regards,
Romain

> +source "toolchain/toolchain-external/toolchain-external-synopsys-arc/Config.in"
> +
> +# Kept last, so it remains the non-default choice, unless there isn't
> +# any available toolchain profile for the currently selected
> +# architecture.
> +source "toolchain/toolchain-external/toolchain-external-custom/Config.in"



[...]

> +source "toolchain/toolchain-external/toolchain-external-blackfin-uclinux/Config.in.options"
> +source "toolchain/toolchain-external/toolchain-external-arago-armv5te/Config.in.options"
> +source "toolchain/toolchain-external/toolchain-external-arago-armv7a/Config.in.options"
> +source "toolchain/toolchain-external/toolchain-external-codescape-mti-mips/Config.in.options"
> +source "toolchain/toolchain-external/toolchain-external-codescape-img-mips/Config.in.options"
> +source "toolchain/toolchain-external/toolchain-external-linaro-aarch64/Config.in.options"
> +source "toolchain/toolchain-external/toolchain-external-linaro-arm/Config.in.options"
> +source "toolchain/toolchain-external/toolchain-external-linaro-armeb/Config.in.options"
> +source "toolchain/toolchain-external/toolchain-external-musl-cross/Config.in.options"
> +source "toolchain/toolchain-external/toolchain-external-codesourcery-arm/Config.in.options"
> +source "toolchain/toolchain-external/toolchain-external-codesourcery-amd64/Config.in.options"
> +source "toolchain/toolchain-external/toolchain-external-codesourcery-aarch64/Config.in.options"
> +source "toolchain/toolchain-external/toolchain-external-codesourcery-mips/Config.in.options"
> +source "toolchain/toolchain-external/toolchain-external-codesourcery-niosII/Config.in.options"
> +source "toolchain/toolchain-external/toolchain-external-codesourcery-sh/Config.in.options"
> +source "toolchain/toolchain-external/toolchain-external-codesourcery-x86/Config.in.options"
> +source "toolchain/toolchain-external/toolchain-external-synopsys-arc/Config.in.options"
> +
> +source "toolchain/toolchain-external/toolchain-external-custom/Config.in.options"
>  

[Buildroot] [PATCH v2 05/23] toolchain-external-blackfin-uclinux: new package

[Thomas Petazzoni]

Hello,

On Sun, 30 Oct 2016 19:17:00 +0100, Yann E. MORIN wrote:

> > The virtual package should be named "toolchain-external", which clashes
> > with the existing "toolchain-external" package that you remove in step
> > (5). So you can't do your step (2) before doing your step (5), unless
> > of course you name the packages differently.  
> 
> A virtual package is but a generic package, so nothing prevents it from
> having its own _CMDS macros; it can download, configure and build stuff
> of its own.
> 
> Alternatively, you can have the toolchain-external package depend on
> each of the new toochain-external-foo when it is added, as a kind of
> manually-handled virtual package, before eventually converting it to a
> real virtual package once everything as been split out to individual
> providers.

So when the series if half applied, you have:

 - The toolchain-external package infrastructure, which is used by some
   of the toolchains

 - The toolchain-external package, which depending on the toolchain,
   either:

   - Implements itself the logic (for toolchains not yet converted)

   - Depends on another package, toolchain-external-foo, that
     uses the toolchain-external package infrastructure ?

So at some point, if you have two times the code to handle the external
toolchain logic. But I agree that this can work.

Romain, what do you think?

> > With this in mind, going for one option
> > or another really doesn't make much difference. And knowing how painful
> > it is to keep this series up-to-date, I'm personally happy with the
> > current way things are introduced.  
> 
> Since when is "maintaining this series is painful" a rationale for
> applying said series?
> 
> I've known (and maintained and still maintain) series that were (are)
> more difficukt to maintain than this one. And yet, you rarely if ever
> argued those series should be applied just because they were hard to
> maintain...  (And I'm not speaking only for my own series, far from
> it.)

A series that is painful to maintain is definitely a very good
rationale for applying that series quickly *if* people agree that
the series is generally going in the right direction.

What happened with some of your series is that they clearly wasn't a
consensus that we wanted what you were proposing. For example, the
multi-br2-external stuff must have been a real pain to maintain for you
for this long time. But the consensus around it clearly took a long
time to exist, because people were not very enthusiastic about the
additional complexity.

So, yes, the painfulness of maintaining a series is definitely a good
reason to apply it quickly, as long as there is a general consensus
that the stuff proposed by this series is what we want.

Best regards,

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com

[Buildroot] [PATCH v2 23/23] toolchain-external: introduce and use external toolchain infra

[Thomas Petazzoni]

Hello,

On Sun, 30 Oct 2016 19:38:20 +0100, Romain Naour wrote:
> > +source "toolchain/toolchain-external/toolchain-external-blackfin-uclinux/Config.in"
> > +source "toolchain/toolchain-external/toolchain-external-arago-armv5te/Config.in"
> > +source "toolchain/toolchain-external/toolchain-external-arago-armv7a/Config.in"
> > +source "toolchain/toolchain-external/toolchain-external-codescape-mti-mips/Config.in"
> > +source "toolchain/toolchain-external/toolchain-external-codescape-img-mips/Config.in"
> > +source "toolchain/toolchain-external/toolchain-external-linaro-aarch64/Config.in"
> > +source "toolchain/toolchain-external/toolchain-external-linaro-arm/Config.in"
> > +source "toolchain/toolchain-external/toolchain-external-linaro-armeb/Config.in"
> > +source "toolchain/toolchain-external/toolchain-external-musl-cross/Config.in"
> > +source "toolchain/toolchain-external/toolchain-external-codesourcery-aarch64/Config.in"
> > +source "toolchain/toolchain-external/toolchain-external-codesourcery-amd64/Config.in"
> > +source "toolchain/toolchain-external/toolchain-external-codesourcery-arm/Config.in"
> > +source "toolchain/toolchain-external/toolchain-external-codesourcery-mips/Config.in"
> > +source "toolchain/toolchain-external/toolchain-external-codesourcery-niosII/Config.in"
> > +source "toolchain/toolchain-external/toolchain-external-codesourcery-sh/Config.in"
> > +source "toolchain/toolchain-external/toolchain-external-codesourcery-x86/Config.in"  
> 
> The codesourcery toolchains were named sourcery in a previous version of this
> series, but now it's not sorted alphabetically.
> Also, for ARM the default toochain choice is arago which is an very old
> toolchain (2011), do we want to keep the default ARM choice to linaro or
> codesourcery toolchain ?

You're talking about Arago vs. Sourcery, and you conclude with a
question about Linaro vs. Sourcery, so I'm confused.

So:

 - The Linaro toolchain is EABIhf, the Sourcery toolchain is EABI, so
   there is never a choice between Linaro and Sourcery for a given
   target configuration.

 - The Arago toolchain is indeed old, and I'd rather not use it for our
   default on ARM. Maybe we can keep an alphabetic ordering, and add a
   "default" Config.in clause in the choice...endchoice? Yes, it is
   weird to have such a default in the generic code, but I don't see
   another option.

Thanks,

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com

[Buildroot] [PATCH v2 23/23] toolchain-external: introduce and use external toolchain infra

[Romain Naour]

Hi Thomas,

Le 01/11/2016 ? 14:23, Thomas Petazzoni a ?crit :
> Hello,
> 
> On Sun, 30 Oct 2016 19:38:20 +0100, Romain Naour wrote:
>>> +source "toolchain/toolchain-external/toolchain-external-blackfin-uclinux/Config.in"
>>> +source "toolchain/toolchain-external/toolchain-external-arago-armv5te/Config.in"
>>> +source "toolchain/toolchain-external/toolchain-external-arago-armv7a/Config.in"
>>> +source "toolchain/toolchain-external/toolchain-external-codescape-mti-mips/Config.in"
>>> +source "toolchain/toolchain-external/toolchain-external-codescape-img-mips/Config.in"
>>> +source "toolchain/toolchain-external/toolchain-external-linaro-aarch64/Config.in"
>>> +source "toolchain/toolchain-external/toolchain-external-linaro-arm/Config.in"
>>> +source "toolchain/toolchain-external/toolchain-external-linaro-armeb/Config.in"
>>> +source "toolchain/toolchain-external/toolchain-external-musl-cross/Config.in"
>>> +source "toolchain/toolchain-external/toolchain-external-codesourcery-aarch64/Config.in"
>>> +source "toolchain/toolchain-external/toolchain-external-codesourcery-amd64/Config.in"
>>> +source "toolchain/toolchain-external/toolchain-external-codesourcery-arm/Config.in"
>>> +source "toolchain/toolchain-external/toolchain-external-codesourcery-mips/Config.in"
>>> +source "toolchain/toolchain-external/toolchain-external-codesourcery-niosII/Config.in"
>>> +source "toolchain/toolchain-external/toolchain-external-codesourcery-sh/Config.in"
>>> +source "toolchain/toolchain-external/toolchain-external-codesourcery-x86/Config.in"  
>>
>> The codesourcery toolchains were named sourcery in a previous version of this
>> series, but now it's not sorted alphabetically.
>> Also, for ARM the default toochain choice is arago which is an very old
>> toolchain (2011), do we want to keep the default ARM choice to linaro or
>> codesourcery toolchain ?
> 
> You're talking about Arago vs. Sourcery, and you conclude with a
> question about Linaro vs. Sourcery, so I'm confused.

There are two problem in this patch:
1) The alphabetical order (Sourcery toolchains) which is fixed easily.
2) With toolchains sorted alphabetically, the current default choice is changed
silently with the introduction of the external toolchain infra.

> 
> So:
> 
>  - The Linaro toolchain is EABIhf, the Sourcery toolchain is EABI, so
>    there is never a choice between Linaro and Sourcery for a given
>    target configuration.

Ok for this one but my concern was about Sourcery over Arago ARM toolchains and
Sourcery over Codescape MIPS toolchains. Notice that Linaro provide an EABI
toolchains [1], if someone add this toolchain in Buildroot we will have a choice
between Linaro and Sourcery toolchains.

My understanding is: currently we have a list of "preferred" toolchains with a
fall back to custom toolchains. So even if we want to keep toolchains sorted
alphabetically here, we have to make an exception for toolchain-external-custom
package.

> 
>  - The Arago toolchain is indeed old, and I'd rather not use it for our
>    default on ARM. Maybe we can keep an alphabetic ordering, and add a
>    "default" Config.in clause in the choice...endchoice? Yes, it is
>    weird to have such a default in the generic code, but I don't see
>    another option.

I guess you don't really like the patch 24/24 of the last series (v3):
http://patchwork.ozlabs.org/patch/689378/

Adding a "default" in Config.in may be difficult to maintain over the time.

Thoughts ?

Best regards,
Romain

[1]
https://releases.linaro.org/components/toolchain/binaries/5.3-2016.05/arm-linux-gnueabi

> 
> Thanks,
> 
> Thomas
> 

[Buildroot] [PATCH v2 05/23] toolchain-external-blackfin-uclinux: new package

[Romain Naour]

Hi Thomas,

Le 01/11/2016 ? 14:19, Thomas Petazzoni a ?crit :
> Hello,
> 
> On Sun, 30 Oct 2016 19:17:00 +0100, Yann E. MORIN wrote:
> 
>>> The virtual package should be named "toolchain-external", which clashes
>>> with the existing "toolchain-external" package that you remove in step
>>> (5). So you can't do your step (2) before doing your step (5), unless
>>> of course you name the packages differently.  
>>
>> A virtual package is but a generic package, so nothing prevents it from
>> having its own _CMDS macros; it can download, configure and build stuff
>> of its own.
>>
>> Alternatively, you can have the toolchain-external package depend on
>> each of the new toochain-external-foo when it is added, as a kind of
>> manually-handled virtual package, before eventually converting it to a
>> real virtual package once everything as been split out to individual
>> providers.
> 
> So when the series if half applied, you have:
> 
>  - The toolchain-external package infrastructure, which is used by some
>    of the toolchains
> 
>  - The toolchain-external package, which depending on the toolchain,
>    either:
> 
>    - Implements itself the logic (for toolchains not yet converted)
> 
>    - Depends on another package, toolchain-external-foo, that
>      uses the toolchain-external package infrastructure ?
> 
> So at some point, if you have two times the code to handle the external
> toolchain logic. But I agree that this can work.
> 
> Romain, what do you think?

I think we should decide if we really want this series before -rc1 or delay it
for -next.
If we want this series for -rc1, I might not have finished the rework on time.
If not, I can take the time to rework with Yann's proposal.

Best regards,
Romain

[Buildroot] [PATCH v2 05/23] toolchain-external-blackfin-uclinux: new package

[Yann E. MORIN]

Romain, All,

On 2016-11-01 19:06 +0100, Romain Naour spake thusly:
> Le 01/11/2016 ? 14:19, Thomas Petazzoni a ?crit :
> > Hello,
> > 
> > On Sun, 30 Oct 2016 19:17:00 +0100, Yann E. MORIN wrote:
> > 
> >>> The virtual package should be named "toolchain-external", which clashes
> >>> with the existing "toolchain-external" package that you remove in step
> >>> (5). So you can't do your step (2) before doing your step (5), unless
> >>> of course you name the packages differently.  
> >>
> >> A virtual package is but a generic package, so nothing prevents it from
> >> having its own _CMDS macros; it can download, configure and build stuff
> >> of its own.
> >>
> >> Alternatively, you can have the toolchain-external package depend on
> >> each of the new toochain-external-foo when it is added, as a kind of
> >> manually-handled virtual package, before eventually converting it to a
> >> real virtual package once everything as been split out to individual
> >> providers.
> > 
> > So when the series if half applied, you have:
> > 
> >  - The toolchain-external package infrastructure, which is used by some
> >    of the toolchains
> > 
> >  - The toolchain-external package, which depending on the toolchain,
> >    either:
> > 
> >    - Implements itself the logic (for toolchains not yet converted)
> > 
> >    - Depends on another package, toolchain-external-foo, that
> >      uses the toolchain-external package infrastructure ?
> > 
> > So at some point, if you have two times the code to handle the external
> > toolchain logic. But I agree that this can work.
> > 
> > Romain, what do you think?
> 
> I think we should decide if we really want this series before -rc1 or delay it
> for -next.
> If we want this series for -rc1, I might not have finished the rework on time.
> If not, I can take the time to rework with Yann's proposal.

As we discussed on IRC just a few minutes ago, I am not in favour of you
rewriting this series, whether it is material for -rc1 or -next.

As for the ordering of the toolchains, I think we should have them
ordered by alpahbetiacal order.

After all, we never really advertised that defconfigs would be
"reansposable" as-is during an upgrade. The real process for an upgrade
should be:

    make foo_defconfig
    git pull
    make oldconfig
    (check)
    make savedefconfig

Which is the only way we can ensure correctness in a configuration file,
because that will also cover the legacy stuff. Not doing so would risk
keeping legacy symbols in a defconfig, so the process above is what one
should do when upgrading Buildroot.

Regards,
Yann E. MORIN.

-- 
.-----------------.--------------------.------------------.--------------------.
|  Yann E. MORIN  | Real-Time Embedded | /"\ ASCII RIBBON | Erics' conspiracy: |
| +33 662 376 056 | Software  Designer | \ / CAMPAIGN     |  ___               |
| +33 223 225 172 `------------.-------:  X  AGAINST      |  \e/  There is no  |
| http://ymorin.is-a-geek.org/ | _/*\_ | / \ HTML MAIL    |   v   conspiracy.  |
'------------------------------^-------^------------------^--------------------'

[Buildroot] [PATCH v2 05/23] toolchain-external-blackfin-uclinux: new package

[Thomas Petazzoni]

Hello,

On Tue, 1 Nov 2016 19:14:55 +0100, Yann E. MORIN wrote:

> As we discussed on IRC just a few minutes ago, I am not in favour of you
> rewriting this series, whether it is material for -rc1 or -next.

IMO, we're too close to -rc1 for this series to go in. I'll probably
merge the first five preparation patches, but I'd prefer to merge the
rest in the next branch.

> As for the ordering of the toolchains, I think we should have them
> ordered by alpahbetiacal order.

Right.

> After all, we never really advertised that defconfigs would be
> "reansposable" as-is during an upgrade.

Well, this is what we are trying to achieve to some extent with the
Config.in.legacy.

> The real process for an upgrade should be:
> 
>     make foo_defconfig
>     git pull
>     make oldconfig
>     (check)
>     make savedefconfig

Regardless of whether it's for backward compat reasons or not, I still
think the Sourcery toolchain should be used by default on ARM EABI, and
not the older Arago toolchain, even if Arago is sorted alphabetically
before Sourcery. Which is why I suggest to have a "default" statement
in the Config.in choice for external toolchains.

Best regards,

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com

[Buildroot] [PATCH v2 23/23] toolchain-external: introduce and use external toolchain infra

[Thomas Petazzoni]

Hello,

On Tue, 1 Nov 2016 18:42:22 +0100, Romain Naour wrote:

> >  - The Linaro toolchain is EABIhf, the Sourcery toolchain is EABI, so
> >    there is never a choice between Linaro and Sourcery for a given
> >    target configuration.  
> 
> Ok for this one but my concern was about Sourcery over Arago ARM toolchains and
> Sourcery over Codescape MIPS toolchains. Notice that Linaro provide an EABI
> toolchains [1], if someone add this toolchain in Buildroot we will have a choice
> between Linaro and Sourcery toolchains.

OK.

> My understanding is: currently we have a list of "preferred" toolchains with a
> fall back to custom toolchains. So even if we want to keep toolchains sorted
> alphabetically here, we have to make an exception for toolchain-external-custom
> package.

Correct, the "custom" option should definitely be the last one, we
prefer to use pre-defined toolchains when available.

> >  - The Arago toolchain is indeed old, and I'd rather not use it for our
> >    default on ARM. Maybe we can keep an alphabetic ordering, and add a
> >    "default" Config.in clause in the choice...endchoice? Yes, it is
> >    weird to have such a default in the generic code, but I don't see
> >    another option.  
> 
> I guess you don't really like the patch 24/24 of the last series (v3):
> http://patchwork.ozlabs.org/patch/689378/

So, in fact we have two choice:

 (1) Play with the "source" order, to get some toolchains considered as
     the default choice over other toolchains. This is what your patch
     24/24 currently does.

     Advantage is that we don't have to maintain a list of "default"
     statement. The only drawback is that we violate the rule of "let's
     include by alphabetic ordering".

 (2) Add a potentially long list of "default" statement. This solution
     is painful IMO, and its only advantage is that we don't violate
     the "order alphabetically" rule.

So despite what Yann said, I'm in fact going to propose that we stick
with (1), i.e what your patch does currently. Yes, it's a violation of
the "order alphabetically" rule, but it's the easiest solution, and is
probably explained by comments in your patch.

Best regards,

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com