x86: prevent binutils from being "smart" and generating NOPLs for us

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binutils, contrary to documented behaviour, will generate long NOPs (a
P6-or-higher instruction which is broken on at least some VIA chips,
Virtual PC/Virtual Server, and some versions of Qemu) depending on the
-mtune= option, which is not supposed to change architectural
behaviour.

Pass an explicit override to the assembler, in case ends up passing
the -mtune= parameter to gas (gcc 4.3.0 does not appear to.)

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

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H. Peter Anvin 2008-09-08 12:01:48 -07:00

parent 43789e2163

commit 28f7e66fc1

1 changed files with 5 additions and 0 deletions

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arch/x86/Makefile_32.cpu

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