[PATCH 1/2] sh: boot: add intermediate vmlinux.bin* to targets instead of extra-y

[PATCH 1/2] sh: boot: add intermediate vmlinux.bin* to targets instead of extra-y

[Masahiro Yamada]

You do not need to build all of vmlinux.bin*

They are built on demand as prerequsites of uImage.bin*, hence should
be added to targets instead of extra-y.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
---

 arch/sh/boot/Makefile | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/sh/boot/Makefile b/arch/sh/boot/Makefile
index 58592dfa5cb6..dded61296c9a 100644
--- a/arch/sh/boot/Makefile
+++ b/arch/sh/boot/Makefile
@@ -27,8 +27,8 @@ suffix-$(CONFIG_KERNEL_XZ)	:= xz
 suffix-$(CONFIG_KERNEL_LZO)	:= lzo
 
 targets := zImage vmlinux.srec romImage uImage uImage.srec uImage.gz \
-	   uImage.bz2 uImage.lzma uImage.xz uImage.lzo uImage.bin
-extra-y += vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma \
+	   uImage.bz2 uImage.lzma uImage.xz uImage.lzo uImage.bin \
+	   vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma \
 	   vmlinux.bin.xz vmlinux.bin.lzo
 subdir- := compressed romimage
 
-- 
2.27.0

[PATCH 2/2] sh: boot: avoid unneeded rebuilds under arch/sh/boot/compressed/

[Masahiro Yamada]

Even if none of source code is updated, the following are every time
rebuilt:

  CC      arch/sh/boot/compressed/cache.o
  SHIPPED arch/sh/boot/compressed/ashiftrt.S
  AS      arch/sh/boot/compressed/ashiftrt.o
  SHIPPED arch/sh/boot/compressed/ashldi3.c
  CC      arch/sh/boot/compressed/ashldi3.o
  SHIPPED arch/sh/boot/compressed/ashrsi3.S
  AS      arch/sh/boot/compressed/ashrsi3.o
  SHIPPED arch/sh/boot/compressed/ashlsi3.S
  AS      arch/sh/boot/compressed/ashlsi3.o
  SHIPPED arch/sh/boot/compressed/lshrsi3.S
  AS      arch/sh/boot/compressed/lshrsi3.o
  LD      arch/sh/boot/compressed/vmlinux
  OBJCOPY arch/sh/boot/zImage

Add build artifacts to 'targets' as needed.

I turned the library files to check-in files. It is simpler than
copying from arch/sh/lib/ at build-time.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
---

 arch/sh/boot/compressed/.gitignore |  5 -----
 arch/sh/boot/compressed/Makefile   | 32 ++++++++++++------------------
 arch/sh/boot/compressed/ashiftrt.S |  2 ++
 arch/sh/boot/compressed/ashldi3.c  |  2 ++
 arch/sh/boot/compressed/ashlsi3.S  |  2 ++
 arch/sh/boot/compressed/ashrsi3.S  |  2 ++
 arch/sh/boot/compressed/lshrsi3.S  |  2 ++
 7 files changed, 23 insertions(+), 24 deletions(-)
 create mode 100644 arch/sh/boot/compressed/ashiftrt.S
 create mode 100644 arch/sh/boot/compressed/ashldi3.c
 create mode 100644 arch/sh/boot/compressed/ashlsi3.S
 create mode 100644 arch/sh/boot/compressed/ashrsi3.S
 create mode 100644 arch/sh/boot/compressed/lshrsi3.S

diff --git a/arch/sh/boot/compressed/.gitignore b/arch/sh/boot/compressed/.gitignore
index 37aa53057369..cd16663bc7c8 100644
--- a/arch/sh/boot/compressed/.gitignore
+++ b/arch/sh/boot/compressed/.gitignore
@@ -1,7 +1,2 @@
 # SPDX-License-Identifier: GPL-2.0-only
-ashiftrt.S
-ashldi3.c
-ashlsi3.S
-ashrsi3.S
-lshrsi3.S
 vmlinux.bin.*
diff --git a/arch/sh/boot/compressed/Makefile b/arch/sh/boot/compressed/Makefile
index 589d2d8a573d..cf3174df7859 100644
--- a/arch/sh/boot/compressed/Makefile
+++ b/arch/sh/boot/compressed/Makefile
@@ -5,12 +5,18 @@
 # create a compressed vmlinux image from the original vmlinux
 #
 
-targets		:= vmlinux vmlinux.bin vmlinux.bin.gz \
-		   vmlinux.bin.bz2 vmlinux.bin.lzma \
-		   vmlinux.bin.xz vmlinux.bin.lzo \
-		   head_32.o misc.o piggy.o
+OBJECTS := head_32.o misc.o cache.o piggy.o \
+           ashiftrt.o ashldi3.o ashrsi3.o ashlsi3.o lshrsi3.o
+
+# These were previously generated files. When you are building the kernel
+# with O=, make sure to remove the stale files in the output tree. Otherwise,
+# the build system wrongly compiles the stale ones.
+ifdef building_out_of_srctree
+$(shell rm -f $(addprefix $(obj)/, ashiftrt.S ashldi3.c ashrsi3.S ashlsi3.S lshrsi3.S))
+endif
 
-OBJECTS = $(obj)/head_32.o $(obj)/misc.o $(obj)/cache.o
+targets := vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 \
+           vmlinux.bin.lzma vmlinux.bin.xz vmlinux.bin.lzo $(OBJECTS)
 
 GCOV_PROFILE := n
 
@@ -33,21 +39,9 @@ ccflags-remove-$(CONFIG_MCOUNT) += -pg
 LDFLAGS_vmlinux := --oformat $(ld-bfd) -Ttext $(IMAGE_OFFSET) -e startup \
 		   -T $(obj)/../../kernel/vmlinux.lds
 
-#
-# Pull in the necessary libgcc bits from the in-kernel implementation.
-#
-lib1funcs-y	:= ashiftrt.S ashldi3.c ashrsi3.S ashlsi3.S lshrsi3.S
-lib1funcs-obj   := \
-	$(addsuffix .o, $(basename $(addprefix $(obj)/, $(lib1funcs-y))))
-
-lib1funcs-dir		:= $(srctree)/arch/$(SRCARCH)/lib
-
-KBUILD_CFLAGS += -I$(lib1funcs-dir) -DDISABLE_BRANCH_PROFILING
-
-$(addprefix $(obj)/,$(lib1funcs-y)): $(obj)/%: $(lib1funcs-dir)/% FORCE
-	$(call cmd,shipped)
+KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING
 
-$(obj)/vmlinux: $(OBJECTS) $(obj)/piggy.o $(lib1funcs-obj) FORCE
+$(obj)/vmlinux: $(addprefix $(obj)/, $(OBJECTS)) FORCE
 	$(call if_changed,ld)
 
 $(obj)/vmlinux.bin: vmlinux FORCE
diff --git a/arch/sh/boot/compressed/ashiftrt.S b/arch/sh/boot/compressed/ashiftrt.S
new file mode 100644
index 000000000000..0f3b291a3f4b
--- /dev/null
+++ b/arch/sh/boot/compressed/ashiftrt.S
@@ -0,0 +1,2 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#include "../../lib/ashiftrt.S"
diff --git a/arch/sh/boot/compressed/ashldi3.c b/arch/sh/boot/compressed/ashldi3.c
new file mode 100644
index 000000000000..7cebd646df83
--- /dev/null
+++ b/arch/sh/boot/compressed/ashldi3.c
@@ -0,0 +1,2 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include "../../lib/ashldi3.c"
diff --git a/arch/sh/boot/compressed/ashlsi3.S b/arch/sh/boot/compressed/ashlsi3.S
new file mode 100644
index 000000000000..e354262b275f
--- /dev/null
+++ b/arch/sh/boot/compressed/ashlsi3.S
@@ -0,0 +1,2 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#include "../../lib/ashlsi3.S"
diff --git a/arch/sh/boot/compressed/ashrsi3.S b/arch/sh/boot/compressed/ashrsi3.S
new file mode 100644
index 000000000000..e564be9a4dcd
--- /dev/null
+++ b/arch/sh/boot/compressed/ashrsi3.S
@@ -0,0 +1,2 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#include "../../lib/ashrsi3.S"
diff --git a/arch/sh/boot/compressed/lshrsi3.S b/arch/sh/boot/compressed/lshrsi3.S
new file mode 100644
index 000000000000..5a8281b7e516
--- /dev/null
+++ b/arch/sh/boot/compressed/lshrsi3.S
@@ -0,0 +1,2 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#include "../../lib/lshrsi3.S"
-- 
2.27.0

Re: [PATCH 2/2] sh: boot: avoid unneeded rebuilds under arch/sh/boot/compressed/

[John Paul Adrian Glaubitz]

Hi Masahiro!

On 1/17/21 12:16 PM, Masahiro Yamada wrote:
> Even if none of source code is updated, the following are every time
> rebuilt:
> 
>   CC      arch/sh/boot/compressed/cache.o
>   SHIPPED arch/sh/boot/compressed/ashiftrt.S
>   AS      arch/sh/boot/compressed/ashiftrt.o
>   SHIPPED arch/sh/boot/compressed/ashldi3.c
>   CC      arch/sh/boot/compressed/ashldi3.o
>   SHIPPED arch/sh/boot/compressed/ashrsi3.S
>   AS      arch/sh/boot/compressed/ashrsi3.o
>   SHIPPED arch/sh/boot/compressed/ashlsi3.S
>   AS      arch/sh/boot/compressed/ashlsi3.o
>   SHIPPED arch/sh/boot/compressed/lshrsi3.S
>   AS      arch/sh/boot/compressed/lshrsi3.o
>   LD      arch/sh/boot/compressed/vmlinux
>   OBJCOPY arch/sh/boot/zImage
> 
> Add build artifacts to 'targets' as needed.
> 
> I turned the library files to check-in files. It is simpler than
> copying from arch/sh/lib/ at build-time.
> 
> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
> ---
> 
>  arch/sh/boot/compressed/.gitignore |  5 -----
>  arch/sh/boot/compressed/Makefile   | 32 ++++++++++++------------------
>  arch/sh/boot/compressed/ashiftrt.S |  2 ++
>  arch/sh/boot/compressed/ashldi3.c  |  2 ++
>  arch/sh/boot/compressed/ashlsi3.S  |  2 ++
>  arch/sh/boot/compressed/ashrsi3.S  |  2 ++
>  arch/sh/boot/compressed/lshrsi3.S  |  2 ++
>  7 files changed, 23 insertions(+), 24 deletions(-)
>  create mode 100644 arch/sh/boot/compressed/ashiftrt.S
>  create mode 100644 arch/sh/boot/compressed/ashldi3.c
>  create mode 100644 arch/sh/boot/compressed/ashlsi3.S
>  create mode 100644 arch/sh/boot/compressed/ashrsi3.S
>  create mode 100644 arch/sh/boot/compressed/lshrsi3.S
> 
> diff --git a/arch/sh/boot/compressed/.gitignore b/arch/sh/boot/compressed/.gitignore
> index 37aa53057369..cd16663bc7c8 100644
> --- a/arch/sh/boot/compressed/.gitignore
> +++ b/arch/sh/boot/compressed/.gitignore
> @@ -1,7 +1,2 @@
>  # SPDX-License-Identifier: GPL-2.0-only
> -ashiftrt.S
> -ashldi3.c
> -ashlsi3.S
> -ashrsi3.S
> -lshrsi3.S
>  vmlinux.bin.*
> diff --git a/arch/sh/boot/compressed/Makefile b/arch/sh/boot/compressed/Makefile
> index 589d2d8a573d..cf3174df7859 100644
> --- a/arch/sh/boot/compressed/Makefile
> +++ b/arch/sh/boot/compressed/Makefile
> @@ -5,12 +5,18 @@
>  # create a compressed vmlinux image from the original vmlinux
>  #
>  
> -targets		:= vmlinux vmlinux.bin vmlinux.bin.gz \
> -		   vmlinux.bin.bz2 vmlinux.bin.lzma \
> -		   vmlinux.bin.xz vmlinux.bin.lzo \
> -		   head_32.o misc.o piggy.o
> +OBJECTS := head_32.o misc.o cache.o piggy.o \
> +           ashiftrt.o ashldi3.o ashrsi3.o ashlsi3.o lshrsi3.o
> +
> +# These were previously generated files. When you are building the kernel
> +# with O=, make sure to remove the stale files in the output tree. Otherwise,
> +# the build system wrongly compiles the stale ones.
> +ifdef building_out_of_srctree
> +$(shell rm -f $(addprefix $(obj)/, ashiftrt.S ashldi3.c ashrsi3.S ashlsi3.S lshrsi3.S))
> +endif
>  
> -OBJECTS = $(obj)/head_32.o $(obj)/misc.o $(obj)/cache.o
> +targets := vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 \
> +           vmlinux.bin.lzma vmlinux.bin.xz vmlinux.bin.lzo $(OBJECTS)
>  
>  GCOV_PROFILE := n
>  
> @@ -33,21 +39,9 @@ ccflags-remove-$(CONFIG_MCOUNT) += -pg
>  LDFLAGS_vmlinux := --oformat $(ld-bfd) -Ttext $(IMAGE_OFFSET) -e startup \
>  		   -T $(obj)/../../kernel/vmlinux.lds
>  
> -#
> -# Pull in the necessary libgcc bits from the in-kernel implementation.
> -#
> -lib1funcs-y	:= ashiftrt.S ashldi3.c ashrsi3.S ashlsi3.S lshrsi3.S
> -lib1funcs-obj   := \
> -	$(addsuffix .o, $(basename $(addprefix $(obj)/, $(lib1funcs-y))))
> -
> -lib1funcs-dir		:= $(srctree)/arch/$(SRCARCH)/lib
> -
> -KBUILD_CFLAGS += -I$(lib1funcs-dir) -DDISABLE_BRANCH_PROFILING
> -
> -$(addprefix $(obj)/,$(lib1funcs-y)): $(obj)/%: $(lib1funcs-dir)/% FORCE
> -	$(call cmd,shipped)
> +KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING
>  
> -$(obj)/vmlinux: $(OBJECTS) $(obj)/piggy.o $(lib1funcs-obj) FORCE
> +$(obj)/vmlinux: $(addprefix $(obj)/, $(OBJECTS)) FORCE
>  	$(call if_changed,ld)
>  
>  $(obj)/vmlinux.bin: vmlinux FORCE
> diff --git a/arch/sh/boot/compressed/ashiftrt.S b/arch/sh/boot/compressed/ashiftrt.S
> new file mode 100644
> index 000000000000..0f3b291a3f4b
> --- /dev/null
> +++ b/arch/sh/boot/compressed/ashiftrt.S
> @@ -0,0 +1,2 @@
> +/* SPDX-License-Identifier: GPL-2.0-only */
> +#include "../../lib/ashiftrt.S"
> diff --git a/arch/sh/boot/compressed/ashldi3.c b/arch/sh/boot/compressed/ashldi3.c
> new file mode 100644
> index 000000000000..7cebd646df83
> --- /dev/null
> +++ b/arch/sh/boot/compressed/ashldi3.c
> @@ -0,0 +1,2 @@
> +// SPDX-License-Identifier: GPL-2.0-only
> +#include "../../lib/ashldi3.c"
> diff --git a/arch/sh/boot/compressed/ashlsi3.S b/arch/sh/boot/compressed/ashlsi3.S
> new file mode 100644
> index 000000000000..e354262b275f
> --- /dev/null
> +++ b/arch/sh/boot/compressed/ashlsi3.S
> @@ -0,0 +1,2 @@
> +/* SPDX-License-Identifier: GPL-2.0-only */
> +#include "../../lib/ashlsi3.S"
> diff --git a/arch/sh/boot/compressed/ashrsi3.S b/arch/sh/boot/compressed/ashrsi3.S
> new file mode 100644
> index 000000000000..e564be9a4dcd
> --- /dev/null
> +++ b/arch/sh/boot/compressed/ashrsi3.S
> @@ -0,0 +1,2 @@
> +/* SPDX-License-Identifier: GPL-2.0-only */
> +#include "../../lib/ashrsi3.S"
> diff --git a/arch/sh/boot/compressed/lshrsi3.S b/arch/sh/boot/compressed/lshrsi3.S
> new file mode 100644
> index 000000000000..5a8281b7e516
> --- /dev/null
> +++ b/arch/sh/boot/compressed/lshrsi3.S
> @@ -0,0 +1,2 @@
> +/* SPDX-License-Identifier: GPL-2.0-only */
> +#include "../../lib/lshrsi3.S"

This patch doesn't apply for me while the first one applies without problems:

glaubitz@epyc:..glaubitz/linux-git> git am ../sh-patches-2021/\[PATCH\ 1_2\]\ sh\:\ boot\:\ add\ intermediate\ vmlinux.bin\*\ to\ targets\ instead\ of\ extra-y.eml
Applying: sh: boot: add intermediate vmlinux.bin* to targets instead of extra-y
glaubitz@epyc:..glaubitz/linux-git> git am ../sh-patches-2021/\[PATCH\ 2_2\]\ sh\:\ boot\:\ avoid\ unneeded\ rebuilds\ under\ arch_sh_boot_compressed_.eml
Applying: sh: boot: avoid unneeded rebuilds under arch/sh/boot/compressed/
error: arch/sh/boot/compressed/ashiftrt.S: already exists in working directory
error: arch/sh/boot/compressed/ashldi3.c: already exists in working directory
error: arch/sh/boot/compressed/ashlsi3.S: already exists in working directory
error: arch/sh/boot/compressed/ashrsi3.S: already exists in working directory
error: arch/sh/boot/compressed/lshrsi3.S: already exists in working directory
Patch failed at 0001 sh: boot: avoid unneeded rebuilds under arch/sh/boot/compressed/
hint: Use 'git am --show-current-patch=diff' to see the failed patch
When you have resolved this problem, run "git am --continue".
If you prefer to skip this patch, run "git am --skip" instead.
To restore the original branch and stop patching, run "git am --abort".
glaubitz@epyc:..glaubitz/linux-git>

Adrian

-- 
 .''`.  John Paul Adrian Glaubitz
: :' :  Debian Developer - glaubitz@debian.org
`. `'   Freie Universitaet Berlin - glaubitz@physik.fu-berlin.de
  `-    GPG: 62FF 8A75 84E0 2956 9546  0006 7426 3B37 F5B5 F913

Re: [PATCH 2/2] sh: boot: avoid unneeded rebuilds under arch/sh/boot/compressed/

[Masahiro Yamada]

On Sun, Jan 17, 2021 at 10:35 PM John Paul Adrian Glaubitz
<glaubitz@physik.fu-berlin.de> wrote:
>
> Hi Masahiro!
>
> On 1/17/21 12:16 PM, Masahiro Yamada wrote:
> > Even if none of source code is updated, the following are every time
> > rebuilt:
> >
> >   CC      arch/sh/boot/compressed/cache.o
> >   SHIPPED arch/sh/boot/compressed/ashiftrt.S
> >   AS      arch/sh/boot/compressed/ashiftrt.o
> >   SHIPPED arch/sh/boot/compressed/ashldi3.c
> >   CC      arch/sh/boot/compressed/ashldi3.o
> >   SHIPPED arch/sh/boot/compressed/ashrsi3.S
> >   AS      arch/sh/boot/compressed/ashrsi3.o
> >   SHIPPED arch/sh/boot/compressed/ashlsi3.S
> >   AS      arch/sh/boot/compressed/ashlsi3.o
> >   SHIPPED arch/sh/boot/compressed/lshrsi3.S
> >   AS      arch/sh/boot/compressed/lshrsi3.o
> >   LD      arch/sh/boot/compressed/vmlinux
> >   OBJCOPY arch/sh/boot/zImage
> >
> > Add build artifacts to 'targets' as needed.
> >
> > I turned the library files to check-in files. It is simpler than
> > copying from arch/sh/lib/ at build-time.
> >
> > Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
> > ---
> >
> >  arch/sh/boot/compressed/.gitignore |  5 -----
> >  arch/sh/boot/compressed/Makefile   | 32 ++++++++++++------------------
> >  arch/sh/boot/compressed/ashiftrt.S |  2 ++
> >  arch/sh/boot/compressed/ashldi3.c  |  2 ++
> >  arch/sh/boot/compressed/ashlsi3.S  |  2 ++
> >  arch/sh/boot/compressed/ashrsi3.S  |  2 ++
> >  arch/sh/boot/compressed/lshrsi3.S  |  2 ++
> >  7 files changed, 23 insertions(+), 24 deletions(-)
> >  create mode 100644 arch/sh/boot/compressed/ashiftrt.S
> >  create mode 100644 arch/sh/boot/compressed/ashldi3.c
> >  create mode 100644 arch/sh/boot/compressed/ashlsi3.S
> >  create mode 100644 arch/sh/boot/compressed/ashrsi3.S
> >  create mode 100644 arch/sh/boot/compressed/lshrsi3.S
> >
> > diff --git a/arch/sh/boot/compressed/.gitignore b/arch/sh/boot/compressed/.gitignore
> > index 37aa53057369..cd16663bc7c8 100644
> > --- a/arch/sh/boot/compressed/.gitignore
> > +++ b/arch/sh/boot/compressed/.gitignore
> > @@ -1,7 +1,2 @@
> >  # SPDX-License-Identifier: GPL-2.0-only
> > -ashiftrt.S
> > -ashldi3.c
> > -ashlsi3.S
> > -ashrsi3.S
> > -lshrsi3.S
> >  vmlinux.bin.*
> > diff --git a/arch/sh/boot/compressed/Makefile b/arch/sh/boot/compressed/Makefile
> > index 589d2d8a573d..cf3174df7859 100644
> > --- a/arch/sh/boot/compressed/Makefile
> > +++ b/arch/sh/boot/compressed/Makefile
> > @@ -5,12 +5,18 @@
> >  # create a compressed vmlinux image from the original vmlinux
> >  #
> >
> > -targets              := vmlinux vmlinux.bin vmlinux.bin.gz \
> > -                vmlinux.bin.bz2 vmlinux.bin.lzma \
> > -                vmlinux.bin.xz vmlinux.bin.lzo \
> > -                head_32.o misc.o piggy.o
> > +OBJECTS := head_32.o misc.o cache.o piggy.o \
> > +           ashiftrt.o ashldi3.o ashrsi3.o ashlsi3.o lshrsi3.o
> > +
> > +# These were previously generated files. When you are building the kernel
> > +# with O=, make sure to remove the stale files in the output tree. Otherwise,
> > +# the build system wrongly compiles the stale ones.
> > +ifdef building_out_of_srctree
> > +$(shell rm -f $(addprefix $(obj)/, ashiftrt.S ashldi3.c ashrsi3.S ashlsi3.S lshrsi3.S))
> > +endif
> >
> > -OBJECTS = $(obj)/head_32.o $(obj)/misc.o $(obj)/cache.o
> > +targets := vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 \
> > +           vmlinux.bin.lzma vmlinux.bin.xz vmlinux.bin.lzo $(OBJECTS)
> >
> >  GCOV_PROFILE := n
> >
> > @@ -33,21 +39,9 @@ ccflags-remove-$(CONFIG_MCOUNT) += -pg
> >  LDFLAGS_vmlinux := --oformat $(ld-bfd) -Ttext $(IMAGE_OFFSET) -e startup \
> >                  -T $(obj)/../../kernel/vmlinux.lds
> >
> > -#
> > -# Pull in the necessary libgcc bits from the in-kernel implementation.
> > -#
> > -lib1funcs-y  := ashiftrt.S ashldi3.c ashrsi3.S ashlsi3.S lshrsi3.S
> > -lib1funcs-obj   := \
> > -     $(addsuffix .o, $(basename $(addprefix $(obj)/, $(lib1funcs-y))))
> > -
> > -lib1funcs-dir                := $(srctree)/arch/$(SRCARCH)/lib
> > -
> > -KBUILD_CFLAGS += -I$(lib1funcs-dir) -DDISABLE_BRANCH_PROFILING
> > -
> > -$(addprefix $(obj)/,$(lib1funcs-y)): $(obj)/%: $(lib1funcs-dir)/% FORCE
> > -     $(call cmd,shipped)
> > +KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING
> >
> > -$(obj)/vmlinux: $(OBJECTS) $(obj)/piggy.o $(lib1funcs-obj) FORCE
> > +$(obj)/vmlinux: $(addprefix $(obj)/, $(OBJECTS)) FORCE
> >       $(call if_changed,ld)
> >
> >  $(obj)/vmlinux.bin: vmlinux FORCE
> > diff --git a/arch/sh/boot/compressed/ashiftrt.S b/arch/sh/boot/compressed/ashiftrt.S
> > new file mode 100644
> > index 000000000000..0f3b291a3f4b
> > --- /dev/null
> > +++ b/arch/sh/boot/compressed/ashiftrt.S
> > @@ -0,0 +1,2 @@
> > +/* SPDX-License-Identifier: GPL-2.0-only */
> > +#include "../../lib/ashiftrt.S"
> > diff --git a/arch/sh/boot/compressed/ashldi3.c b/arch/sh/boot/compressed/ashldi3.c
> > new file mode 100644
> > index 000000000000..7cebd646df83
> > --- /dev/null
> > +++ b/arch/sh/boot/compressed/ashldi3.c
> > @@ -0,0 +1,2 @@
> > +// SPDX-License-Identifier: GPL-2.0-only
> > +#include "../../lib/ashldi3.c"
> > diff --git a/arch/sh/boot/compressed/ashlsi3.S b/arch/sh/boot/compressed/ashlsi3.S
> > new file mode 100644
> > index 000000000000..e354262b275f
> > --- /dev/null
> > +++ b/arch/sh/boot/compressed/ashlsi3.S
> > @@ -0,0 +1,2 @@
> > +/* SPDX-License-Identifier: GPL-2.0-only */
> > +#include "../../lib/ashlsi3.S"
> > diff --git a/arch/sh/boot/compressed/ashrsi3.S b/arch/sh/boot/compressed/ashrsi3.S
> > new file mode 100644
> > index 000000000000..e564be9a4dcd
> > --- /dev/null
> > +++ b/arch/sh/boot/compressed/ashrsi3.S
> > @@ -0,0 +1,2 @@
> > +/* SPDX-License-Identifier: GPL-2.0-only */
> > +#include "../../lib/ashrsi3.S"
> > diff --git a/arch/sh/boot/compressed/lshrsi3.S b/arch/sh/boot/compressed/lshrsi3.S
> > new file mode 100644
> > index 000000000000..5a8281b7e516
> > --- /dev/null
> > +++ b/arch/sh/boot/compressed/lshrsi3.S
> > @@ -0,0 +1,2 @@
> > +/* SPDX-License-Identifier: GPL-2.0-only */
> > +#include "../../lib/lshrsi3.S"
>
> This patch doesn't apply for me while the first one applies without problems:
>
> glaubitz@epyc:..glaubitz/linux-git> git am ../sh-patches-2021/\[PATCH\ 1_2\]\ sh\:\ boot\:\ add\ intermediate\ vmlinux.bin\*\ to\ targets\ instead\ of\ extra-y.eml
> Applying: sh: boot: add intermediate vmlinux.bin* to targets instead of extra-y
> glaubitz@epyc:..glaubitz/linux-git> git am ../sh-patches-2021/\[PATCH\ 2_2\]\ sh\:\ boot\:\ avoid\ unneeded\ rebuilds\ under\ arch_sh_boot_compressed_.eml
> Applying: sh: boot: avoid unneeded rebuilds under arch/sh/boot/compressed/
> error: arch/sh/boot/compressed/ashiftrt.S: already exists in working directory
> error: arch/sh/boot/compressed/ashldi3.c: already exists in working directory
> error: arch/sh/boot/compressed/ashlsi3.S: already exists in working directory
> error: arch/sh/boot/compressed/ashrsi3.S: already exists in working directory
> error: arch/sh/boot/compressed/lshrsi3.S: already exists in working directory

Adrian, these 5 files are currently generated files.

That is why git-am failed.

They are not cleaned up by 'make ARCH=sh clean'
(this is a bug too).


Please remove them manually, then try git am again.







> Patch failed at 0001 sh: boot: avoid unneeded rebuilds under arch/sh/boot/compressed/
> hint: Use 'git am --show-current-patch=diff' to see the failed patch
> When you have resolved this problem, run "git am --continue".
> If you prefer to skip this patch, run "git am --skip" instead.
> To restore the original branch and stop patching, run "git am --abort".
> glaubitz@epyc:..glaubitz/linux-git>
>
> Adrian
>
> --
>  .''`.  John Paul Adrian Glaubitz
> : :' :  Debian Developer - glaubitz@debian.org
> `. `'   Freie Universitaet Berlin - glaubitz@physik.fu-berlin.de
>   `-    GPG: 62FF 8A75 84E0 2956 9546  0006 7426 3B37 F5B5 F913
>


--
Best Regards
Masahiro Yamada

Re: [PATCH 2/2] sh: boot: avoid unneeded rebuilds under arch/sh/boot/compressed/

[John Paul Adrian Glaubitz]

Hi Masahiro!

On 1/17/21 5:21 PM, Masahiro Yamada wrote:
>> This patch doesn't apply for me while the first one applies without problems:
>>
>> glaubitz@epyc:..glaubitz/linux-git> git am ../sh-patches-2021/\[PATCH\ 1_2\]\ sh\:\ boot\:\ add\ intermediate\ vmlinux.bin\*\ to\ targets\ instead\ of\ extra-y.eml
>> Applying: sh: boot: add intermediate vmlinux.bin* to targets instead of extra-y
>> glaubitz@epyc:..glaubitz/linux-git> git am ../sh-patches-2021/\[PATCH\ 2_2\]\ sh\:\ boot\:\ avoid\ unneeded\ rebuilds\ under\ arch_sh_boot_compressed_.eml
>> Applying: sh: boot: avoid unneeded rebuilds under arch/sh/boot/compressed/
>> error: arch/sh/boot/compressed/ashiftrt.S: already exists in working directory
>> error: arch/sh/boot/compressed/ashldi3.c: already exists in working directory
>> error: arch/sh/boot/compressed/ashlsi3.S: already exists in working directory
>> error: arch/sh/boot/compressed/ashrsi3.S: already exists in working directory
>> error: arch/sh/boot/compressed/lshrsi3.S: already exists in working directory
> 
> Adrian, these 5 files are currently generated files.
> 
> That is why git-am failed.

I already guessed that. I removed them now and the patch applies cleanly.

Will test-boot on my SH-7785LCR in a minute.

> They are not cleaned up by 'make ARCH=sh clean'
> (this is a bug too).

That should be easy to fix I guess :-).

Adrian

-- 
 .''`.  John Paul Adrian Glaubitz
: :' :  Debian Developer - glaubitz@debian.org
`. `'   Freie Universitaet Berlin - glaubitz@physik.fu-berlin.de
  `-    GPG: 62FF 8A75 84E0 2956 9546  0006 7426 3B37 F5B5 F913

Re: [PATCH 1/2] sh: boot: add intermediate vmlinux.bin* to targets instead of extra-y

[John Paul Adrian Glaubitz]

On 1/17/21 12:16 PM, Masahiro Yamada wrote:
> You do not need to build all of vmlinux.bin*
> 
> They are built on demand as prerequsites of uImage.bin*, hence should
> be added to targets instead of extra-y.
> 
> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
> ---
> 
>  arch/sh/boot/Makefile | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/sh/boot/Makefile b/arch/sh/boot/Makefile
> index 58592dfa5cb6..dded61296c9a 100644
> --- a/arch/sh/boot/Makefile
> +++ b/arch/sh/boot/Makefile
> @@ -27,8 +27,8 @@ suffix-$(CONFIG_KERNEL_XZ)	:= xz
>  suffix-$(CONFIG_KERNEL_LZO)	:= lzo
>  
>  targets := zImage vmlinux.srec romImage uImage uImage.srec uImage.gz \
> -	   uImage.bz2 uImage.lzma uImage.xz uImage.lzo uImage.bin
> -extra-y += vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma \
> +	   uImage.bz2 uImage.lzma uImage.xz uImage.lzo uImage.bin \
> +	   vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 vmlinux.bin.lzma \
>  	   vmlinux.bin.xz vmlinux.bin.lzo
>  subdir- := compressed romimage

Successfully boot-tested on my SH-7785LCR. No regressions.

Tested-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>

-- 
 .''`.  John Paul Adrian Glaubitz
: :' :  Debian Developer - glaubitz@debian.org
`. `'   Freie Universitaet Berlin - glaubitz@physik.fu-berlin.de
  `-    GPG: 62FF 8A75 84E0 2956 9546  0006 7426 3B37 F5B5 F913

Re: [PATCH 2/2] sh: boot: avoid unneeded rebuilds under arch/sh/boot/compressed/

[John Paul Adrian Glaubitz]

On 1/17/21 12:16 PM, Masahiro Yamada wrote:
> Even if none of source code is updated, the following are every time
> rebuilt:
> 
>   CC      arch/sh/boot/compressed/cache.o
>   SHIPPED arch/sh/boot/compressed/ashiftrt.S
>   AS      arch/sh/boot/compressed/ashiftrt.o
>   SHIPPED arch/sh/boot/compressed/ashldi3.c
>   CC      arch/sh/boot/compressed/ashldi3.o
>   SHIPPED arch/sh/boot/compressed/ashrsi3.S
>   AS      arch/sh/boot/compressed/ashrsi3.o
>   SHIPPED arch/sh/boot/compressed/ashlsi3.S
>   AS      arch/sh/boot/compressed/ashlsi3.o
>   SHIPPED arch/sh/boot/compressed/lshrsi3.S
>   AS      arch/sh/boot/compressed/lshrsi3.o
>   LD      arch/sh/boot/compressed/vmlinux
>   OBJCOPY arch/sh/boot/zImage
> 
> Add build artifacts to 'targets' as needed.
> 
> I turned the library files to check-in files. It is simpler than
> copying from arch/sh/lib/ at build-time.
> 
> Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
> ---
> 
>  arch/sh/boot/compressed/.gitignore |  5 -----
>  arch/sh/boot/compressed/Makefile   | 32 ++++++++++++------------------
>  arch/sh/boot/compressed/ashiftrt.S |  2 ++
>  arch/sh/boot/compressed/ashldi3.c  |  2 ++
>  arch/sh/boot/compressed/ashlsi3.S  |  2 ++
>  arch/sh/boot/compressed/ashrsi3.S  |  2 ++
>  arch/sh/boot/compressed/lshrsi3.S  |  2 ++
>  7 files changed, 23 insertions(+), 24 deletions(-)
>  create mode 100644 arch/sh/boot/compressed/ashiftrt.S
>  create mode 100644 arch/sh/boot/compressed/ashldi3.c
>  create mode 100644 arch/sh/boot/compressed/ashlsi3.S
>  create mode 100644 arch/sh/boot/compressed/ashrsi3.S
>  create mode 100644 arch/sh/boot/compressed/lshrsi3.S
> 
> diff --git a/arch/sh/boot/compressed/.gitignore b/arch/sh/boot/compressed/.gitignore
> index 37aa53057369..cd16663bc7c8 100644
> --- a/arch/sh/boot/compressed/.gitignore
> +++ b/arch/sh/boot/compressed/.gitignore
> @@ -1,7 +1,2 @@
>  # SPDX-License-Identifier: GPL-2.0-only
> -ashiftrt.S
> -ashldi3.c
> -ashlsi3.S
> -ashrsi3.S
> -lshrsi3.S
>  vmlinux.bin.*
> diff --git a/arch/sh/boot/compressed/Makefile b/arch/sh/boot/compressed/Makefile
> index 589d2d8a573d..cf3174df7859 100644
> --- a/arch/sh/boot/compressed/Makefile
> +++ b/arch/sh/boot/compressed/Makefile
> @@ -5,12 +5,18 @@
>  # create a compressed vmlinux image from the original vmlinux
>  #
>  
> -targets		:= vmlinux vmlinux.bin vmlinux.bin.gz \
> -		   vmlinux.bin.bz2 vmlinux.bin.lzma \
> -		   vmlinux.bin.xz vmlinux.bin.lzo \
> -		   head_32.o misc.o piggy.o
> +OBJECTS := head_32.o misc.o cache.o piggy.o \
> +           ashiftrt.o ashldi3.o ashrsi3.o ashlsi3.o lshrsi3.o
> +
> +# These were previously generated files. When you are building the kernel
> +# with O=, make sure to remove the stale files in the output tree. Otherwise,
> +# the build system wrongly compiles the stale ones.
> +ifdef building_out_of_srctree
> +$(shell rm -f $(addprefix $(obj)/, ashiftrt.S ashldi3.c ashrsi3.S ashlsi3.S lshrsi3.S))
> +endif
>  
> -OBJECTS = $(obj)/head_32.o $(obj)/misc.o $(obj)/cache.o
> +targets := vmlinux vmlinux.bin vmlinux.bin.gz vmlinux.bin.bz2 \
> +           vmlinux.bin.lzma vmlinux.bin.xz vmlinux.bin.lzo $(OBJECTS)
>  
>  GCOV_PROFILE := n
>  
> @@ -33,21 +39,9 @@ ccflags-remove-$(CONFIG_MCOUNT) += -pg
>  LDFLAGS_vmlinux := --oformat $(ld-bfd) -Ttext $(IMAGE_OFFSET) -e startup \
>  		   -T $(obj)/../../kernel/vmlinux.lds
>  
> -#
> -# Pull in the necessary libgcc bits from the in-kernel implementation.
> -#
> -lib1funcs-y	:= ashiftrt.S ashldi3.c ashrsi3.S ashlsi3.S lshrsi3.S
> -lib1funcs-obj   := \
> -	$(addsuffix .o, $(basename $(addprefix $(obj)/, $(lib1funcs-y))))
> -
> -lib1funcs-dir		:= $(srctree)/arch/$(SRCARCH)/lib
> -
> -KBUILD_CFLAGS += -I$(lib1funcs-dir) -DDISABLE_BRANCH_PROFILING
> -
> -$(addprefix $(obj)/,$(lib1funcs-y)): $(obj)/%: $(lib1funcs-dir)/% FORCE
> -	$(call cmd,shipped)
> +KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING
>  
> -$(obj)/vmlinux: $(OBJECTS) $(obj)/piggy.o $(lib1funcs-obj) FORCE
> +$(obj)/vmlinux: $(addprefix $(obj)/, $(OBJECTS)) FORCE
>  	$(call if_changed,ld)
>  
>  $(obj)/vmlinux.bin: vmlinux FORCE
> diff --git a/arch/sh/boot/compressed/ashiftrt.S b/arch/sh/boot/compressed/ashiftrt.S
> new file mode 100644
> index 000000000000..0f3b291a3f4b
> --- /dev/null
> +++ b/arch/sh/boot/compressed/ashiftrt.S
> @@ -0,0 +1,2 @@
> +/* SPDX-License-Identifier: GPL-2.0-only */
> +#include "../../lib/ashiftrt.S"
> diff --git a/arch/sh/boot/compressed/ashldi3.c b/arch/sh/boot/compressed/ashldi3.c
> new file mode 100644
> index 000000000000..7cebd646df83
> --- /dev/null
> +++ b/arch/sh/boot/compressed/ashldi3.c
> @@ -0,0 +1,2 @@
> +// SPDX-License-Identifier: GPL-2.0-only
> +#include "../../lib/ashldi3.c"
> diff --git a/arch/sh/boot/compressed/ashlsi3.S b/arch/sh/boot/compressed/ashlsi3.S
> new file mode 100644
> index 000000000000..e354262b275f
> --- /dev/null
> +++ b/arch/sh/boot/compressed/ashlsi3.S
> @@ -0,0 +1,2 @@
> +/* SPDX-License-Identifier: GPL-2.0-only */
> +#include "../../lib/ashlsi3.S"
> diff --git a/arch/sh/boot/compressed/ashrsi3.S b/arch/sh/boot/compressed/ashrsi3.S
> new file mode 100644
> index 000000000000..e564be9a4dcd
> --- /dev/null
> +++ b/arch/sh/boot/compressed/ashrsi3.S
> @@ -0,0 +1,2 @@
> +/* SPDX-License-Identifier: GPL-2.0-only */
> +#include "../../lib/ashrsi3.S"
> diff --git a/arch/sh/boot/compressed/lshrsi3.S b/arch/sh/boot/compressed/lshrsi3.S
> new file mode 100644
> index 000000000000..5a8281b7e516
> --- /dev/null
> +++ b/arch/sh/boot/compressed/lshrsi3.S
> @@ -0,0 +1,2 @@
> +/* SPDX-License-Identifier: GPL-2.0-only */
> +#include "../../lib/lshrsi3.S"


Successfully boot-tested on my SH-7785LCR. No regressions.



Tested-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>

-- 
 .''`.  John Paul Adrian Glaubitz
: :' :  Debian Developer - glaubitz@debian.org
`. `'   Freie Universitaet Berlin - glaubitz@physik.fu-berlin.de
  `-    GPG: 62FF 8A75 84E0 2956 9546  0006 7426 3B37 F5B5 F913