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 <[email protected]> Cc: <[email protected]> # 3.14.x --- Originally sent March 19 (but elicited no response), this is still an issue with 3.15-rc4, and still applies without changes. Sending to some general Linux-x86 people as well as the authors of the stack-protector patch that caused the problem. Feel free to fix it a different way, but could we please fix it? 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
