linux/arch/x86/realmode
H. Peter Anvin 8b3b005d67 x86, build: Pass in additional -mno-mmx, -mno-sse options
In checkin

    5551a34e5a x86-64, build: Always pass in -mno-sse

we unconditionally added -mno-sse to the main build, to keep newer
compilers from generating SSE instructions from autovectorization.
However, this did not extend to the special environments
(arch/x86/boot, arch/x86/boot/compressed, and arch/x86/realmode/rm).
Add -mno-sse to the compiler command line for these environments, and
add -mno-mmx to all the environments as well, as we don't want a
compiler to generate MMX code either.

This patch also removes a $(cc-option) call for -m32, since we have
long since stopped supporting compilers too old for the -m32 option,
and in fact hardcode it in other places in the Makefiles.

Reported-by: Kevin B. Smith <kevin.b.smith@intel.com>
Cc: Sunil K. Pandey <sunil.k.pandey@intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Cc: H. J. Lu <hjl.tools@gmail.com>
Link: http://lkml.kernel.org/n/tip-j21wzqv790q834n7yc6g80j1@git.kernel.org
Cc: <stable@vger.kernel.org> # build fix only
2013-12-09 15:52:39 -08:00
..
rm x86, build: Pass in additional -mno-mmx, -mno-sse options 2013-12-09 15:52:39 -08:00
init.c Merge remote-tracking branch 'origin/x86/mm' into x86/mm2 2013-02-01 02:28:36 -08:00
Makefile x86, realmode: Move kernel/realmode.c to realmode/init.c 2012-05-16 13:49:10 -07:00
rmpiggy.S x86, realmode: don't copy real_mode_header 2012-05-08 11:48:45 -07:00