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Patch "powerpc/boot: Specify ABI v2 when building an LE boot wrapper" has been added to the 4.2-stable tree

PATCH [email protected] 1 participant 1 message Sep 23, 2015

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This is a note to let you know that I've just added the patch titled

powerpc/boot: Specify ABI v2 when building an LE boot wrapper

to the 4.2-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
powerpc-boot-specify-abi-v2-when-building-an-le-boot-wrapper.patch
and it can be found in the queue-4.2 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

Quoted 1 line

From 655471f54c2e395ba29ae4156ba0f49928177cc1 Mon Sep 17 00:00:00 2001

From: Benjamin Herrenschmidt <[email protected]>
Date: Tue, 15 Sep 2015 11:24:17 +1000
Subject: powerpc/boot: Specify ABI v2 when building an LE boot wrapper

From: Benjamin Herrenschmidt <[email protected]>

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")
---
 arch/powerpc/boot/Makefile |    3 +++
 1 file changed, 3 insertions(+)
arch/powerpc/boot/Makefile +3 -0
@@ -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

Patches currently in stable-queue which might be from [email protected] are

queue-4.2/powerpc-boot-specify-abi-v2-when-building-an-le-boot-wrapper.patch