[PATCH 4.2 058/134] powerpc/boot: Specify ABI v2 when building an LE boot wrapper

From	Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Newsgroups	linux.kernel
Subject	[PATCH 4.2 058/134] powerpc/boot: Specify ABI v2 when building an LE boot wrapper
Date	2015-09-27 00:20 +0200
Message-ID	<qd5Z1-4Gv-31@gated-at.bofh.it> (permalink)
References	<qd4Jz-2Ha-3@gated-at.bofh.it>
Organization	linux.* mail to news gateway

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4.2-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Benjamin Herrenschmidt <benh@kernel.crashing.org>

commit 655471f54c2e395ba29ae4156ba0f49928177cc1 upstream.

The kernel does it, not the boot wrapper, which breaks with some
cross compilers that still default to ABI v1.

Fixes: 147c05168fc8 ("powerpc/boot: Add support for 64bit little endian wrapper")
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 arch/powerpc/boot/Makefile |    3 +++
 1 file changed, 3 insertions(+)

--- a/arch/powerpc/boot/Makefile
+++ b/arch/powerpc/boot/Makefile
@@ -28,6 +28,9 @@ BOOTCFLAGS	+= -m64
 endif
 ifdef CONFIG_CPU_BIG_ENDIAN
 BOOTCFLAGS	+= -mbig-endian
+else
+BOOTCFLAGS	+= -mlittle-endian
+BOOTCFLAGS	+= $(call cc-option,-mabi=elfv2)
 endif
 
 BOOTAFLAGS	:= -D__ASSEMBLY__ $(BOOTCFLAGS) -traditional -nostdinc


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[PATCH 4.2 058/134] powerpc/boot: Specify ABI v2 when building an LE boot wrapper Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2015-09-27 00:20 +0200

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