Messages in this thread Patch in this message | | | Date | 19 Mar 2014 06:43:23 -0400 | From | "George Spelvin" <> | Subject | [PATCH] Stack protector Makefile breakage on x86_64 |
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If you are using a 64-bit kernel with 32-bit userland, then scripts/gcc-x86_64-has-stack-protector.sh invokes -32-bit gcc with -mcmodel=kernel, which produces:
<stdin>:1:0: error: code model 'kernel' not supported in the 32 bit mode
and trips the "broken compiler" test at arch/x86/Makefile:118.
There are several places a fix is possible, but the following seems cleanest. (But it's minimal; it would also be possible to factor out a bunch of stuff from the two btanches of the if.)
Signed-off-by: George Spelvin <linux@horizon.com>
diff --git a/arch/x86/Makefile b/arch/x86/Makefile index eeda43abed..c6c61361c3 100644 --- a/arch/x86/Makefile +++ b/arch/x86/Makefile @@ -79,6 +79,7 @@ else UTS_MACHINE := x86_64 CHECKFLAGS += -D__x86_64__ -m64 + biarch := -m64 KBUILD_AFLAGS += -m64 KBUILD_CFLAGS += -m64
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