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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


  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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