diff options
| author | George Spelvin <linux@horizon.com> | 2014-05-07 17:05:52 -0400 |
|---|---|---|
| committer | Show Liu <show.liu@linaro.org> | 2014-06-18 11:43:09 +0800 |
| commit | 2874314c766dfaa1dd49d9baaad95749d6e85ac2 (patch) | |
| tree | f0c71cbfb885e27a9dc5045c3cbabc334a343334 /arch/x86/Makefile | |
| parent | 2e612ab9b84105c335b6a6a78ec4aa1f6ac97123 (diff) | |
x86-64, build: Fix stack protector Makefile breakage with 32-bit userland
commit 14262d67fe348018af368a07430fbc06eadeabb1 upstream.
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:120.
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 branches of the if.)
Signed-off-by: George Spelvin <linux@horizon.com>
Link: http://lkml.kernel.org/r/20140507210552.7581.qmail@ns.horizon.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'arch/x86/Makefile')
| -rw-r--r-- | arch/x86/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/x86/Makefile b/arch/x86/Makefile index d92cef2b9da..c83b7d1d438 100644 --- a/arch/x86/Makefile +++ b/arch/x86/Makefile @@ -80,6 +80,7 @@ else UTS_MACHINE := x86_64 CHECKFLAGS += -D__x86_64__ -m64 + biarch := -m64 KBUILD_AFLAGS += -m64 KBUILD_CFLAGS += -m64 |