From: Nicholas Piggin <npiggin@gmail.com>
To: linux-kbuild@vger.kernel.org
Cc: Nicholas Piggin <npiggin@gmail.com>,
linux-arch@vger.kernel.org, Michal Marek <mmarek@suse.com>,
Sam Ravnborg <sam@ravnborg.org>,
Stephen Rothwell <sfr@canb.auug.org.au>,
Arnd Bergmann <arnd@arndb.de>, Nicolas Pitre <nico@linaro.org>,
Segher Boessenkool <segher@kernel.crashing.org>,
Alan Modra <amodra@gmail.com>
Subject: [PATCH 4/6] powerpc: switch to using thin archives
Date: Thu, 11 Aug 2016 20:16:18 +1000 [thread overview]
Message-ID: <1470910580-18458-5-git-send-email-npiggin@gmail.com> (raw)
In-Reply-To: <1470910580-18458-1-git-send-email-npiggin@gmail.com>
From: Stephen Rothwell <sfr@canb.auug.org.au>
Some change to the way we invoke ar is required so it can be used
by scripts/link-vmlinux.sh
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
---
arch/powerpc/Makefile | 6 ++++--
arch/powerpc/platforms/Kconfig.cputype | 1 +
2 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index ca25454..04a1332 100644
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -23,7 +23,8 @@ CROSS32AR := $(CROSS32_COMPILE)ar
ifeq ($(HAS_BIARCH),y)
ifeq ($(CROSS32_COMPILE),)
CROSS32CC := $(CC) -m32
-CROSS32AR := GNUTARGET=elf32-powerpc $(AR)
+CROSS32AR := $(AR)
+KBUILD_ARFLAGS += --target elf32-powerpc
endif
endif
@@ -93,7 +94,8 @@ ifeq ($(HAS_BIARCH),y)
override AS += -a$(CONFIG_WORD_SIZE)
override LD += -m elf$(CONFIG_WORD_SIZE)$(LDEMULATION)
override CC += -m$(CONFIG_WORD_SIZE)
-override AR := GNUTARGET=elf$(CONFIG_WORD_SIZE)-$(GNUTARGET) $(AR)
+override AR := $(AR)
+KBUILD_ARFLAGS += --target elf$(CONFIG_WORD_SIZE)-$(GNUTARGET)
endif
LDFLAGS_vmlinux-y := -Bstatic
diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype
index f32edec..b5fc6cb 100644
--- a/arch/powerpc/platforms/Kconfig.cputype
+++ b/arch/powerpc/platforms/Kconfig.cputype
@@ -1,6 +1,7 @@
config PPC64
bool "64-bit kernel"
default n
+ select THIN_ARCHIVES
select ZLIB_DEFLATE
help
This option selects whether a 32-bit or a 64-bit kernel
--
2.8.1
next prev parent reply other threads:[~2016-08-11 10:17 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-08-11 10:16 [PATCH 0/6 v2] kbuild changes, thin archives, --gc-sections Nicholas Piggin
2016-08-11 10:16 ` [PATCH 1/6] kbuild: allow architectures to use thin archives instead of ld -r Nicholas Piggin
2016-08-11 10:16 ` [PATCH 2/6] kbuild: allow archs to select link dead code/data elimination Nicholas Piggin
2016-08-11 10:16 ` [PATCH 3/6] kbuild: add arch specific post-link pass Nicholas Piggin
2016-08-16 9:23 ` Michal Marek
2016-08-17 4:43 ` Nicholas Piggin
2016-08-17 9:05 ` Michal Marek
2016-08-17 9:56 ` Sam Ravnborg
2016-08-18 0:17 ` Nicholas Piggin
2016-08-11 10:16 ` Nicholas Piggin [this message]
2016-08-11 10:16 ` [PATCH 5/6] powerpc/64: use linker dead code elimination Nicholas Piggin
2016-08-11 10:16 ` [PATCH 6/6] powerpc: use the new post-link pass to check relocations Nicholas Piggin
2016-08-11 12:31 ` [PATCH 0/6 v2] kbuild changes, thin archives, --gc-sections Stephen Rothwell
2016-08-11 12:39 ` [PATCH] Xen: remove -fshort-wchar gcc flag Arnd Bergmann
2016-08-11 12:51 ` Jan Beulich
2016-08-11 12:51 ` [Xen-devel] " Jan Beulich
2016-08-11 14:01 ` Arnd Bergmann
2016-08-11 14:06 ` Jan Beulich
2016-08-11 14:06 ` Jan Beulich
2016-08-11 14:01 ` Arnd Bergmann
2016-08-24 17:18 ` [Xen-devel] " David Vrabel
2016-08-24 17:18 ` David Vrabel
2016-08-11 12:39 ` Arnd Bergmann
2016-08-11 13:55 ` [EXPERIMENTAL] enable thin archives and --gc-sections on ARM Arnd Bergmann
2016-08-11 20:01 ` Nicolas Pitre
2016-08-11 20:37 ` Arnd Bergmann
2016-08-11 21:05 ` Nicolas Pitre
2016-08-23 6:17 ` [PATCH 0/6 v2] kbuild changes, thin archives, --gc-sections Nicholas Piggin
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