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Subject[tip:x86/asmlinkage] Kbuild, lto: Disable LTO for asm-offsets.c
Commit-ID:  1e64ff42ea3d8d2fc8aa71f9717b3c1cb6c2f893
Gitweb: http://git.kernel.org/tip/1e64ff42ea3d8d2fc8aa71f9717b3c1cb6c2f893
Author: Andi Kleen <ak@linux.intel.com>
AuthorDate: Sat, 8 Feb 2014 09:01:15 +0100
Committer: H. Peter Anvin <hpa@linux.intel.com>
CommitDate: Thu, 13 Feb 2014 20:25:03 -0800

Kbuild, lto: Disable LTO for asm-offsets.c

The asm-offset.c technique to fish data out of the assembler file
does not work with LTO. Just disable for the asm-offset.c build.

Signed-off-by: Andi Kleen <ak@linux.intel.com>
Link: http://lkml.kernel.org/r/1391846481-31491-11-git-send-email-ak@linux.intel.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
---
scripts/Makefile.build | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/Makefile.build b/scripts/Makefile.build
index d5d859c..9f0ee22 100644
--- a/scripts/Makefile.build
+++ b/scripts/Makefile.build
@@ -198,7 +198,7 @@ $(multi-objs-y:.o=.s) : modname = $(modname-multi)
$(multi-objs-y:.o=.lst) : modname = $(modname-multi)

quiet_cmd_cc_s_c = CC $(quiet_modtag) $@
-cmd_cc_s_c = $(CC) $(c_flags) -fverbose-asm -S -o $@ $<
+cmd_cc_s_c = $(CC) $(c_flags) $(DISABLE_LTO) -fverbose-asm -S -o $@ $<

$(obj)/%.s: $(src)/%.c FORCE
$(call if_changed_dep,cc_s_c)

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