Attachment 871100 Details for Bug 1073102 – ppc64le_module_fix.patch

[patch] ppc64le_module_fix.patch

ppc64le_module_fix.patch (text/plain), 1.22 KB, created by Brent Baude on 2014-03-05 18:56:25 UTC

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Creator: Brent Baude

Created: 2014-03-05 18:56:25 UTC

Size: 1.22 KB

patch

obsolete

>From 414794ae6a59c38f6e5793ad50df97cba3dda4e3 Mon Sep 17 00:00:00 2001
>From: Tony Breeds <tony@bakeyournoodle.com>
>Date: Thu, 30 Jan 2014 19:58:55 +1100
>Subject: [PATCH] powerpc/le: Avoid creatng R_PPC64_TOCSAVE relocations for
> modules.
>
>When building modules with a native le toolchain the linker will
>generate R_PPC64_TOCSAVE relocations when it's safe to omit saving r2 on
>a plt call.  This isn't helpful in the conext of a kernel module and the
>kernel will fail to load those modules with an error like:
>	nf_conntrack: Unknown ADD relocation: 109
>
>This patch tells the linker to avoid createing R_PPC64_TOCSAVE
>relocations allowing modules to load.
>
>Signed-off-by: Tony Breeds <tony@bakeyournoodle.com>
>---
> arch/powerpc/Makefile | 3 +++
> 1 file changed, 3 insertions(+)
>
>diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
>index 0f4344e..fff3945 100644
>--- a/arch/powerpc/Makefile
>+++ b/arch/powerpc/Makefile
>@@ -74,6 +74,9 @@ override CROSS32AS += -mlittle-endian
> LDEMULATION	:= lppc
> GNUTARGET	:= powerpcle
> MULTIPLEWORD	:= -mno-multiple
>+ifeq ($(call cc-option-yn,-mno-save-toc-indirect),y)
>+       KBUILD_CFLAGS_MODULE += -mno-save-toc-indirect
>+endif
> else
> ifeq ($(call cc-option-yn,-mbig-endian),y)
> override CC	+= -mbig-endian
>--

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