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2009-06-04 Vladimir Serbinenko <phcoder@gmail.com>

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Avoid clobbering %ebx/%rbx in inline assembly with Apple's CC

	* efiemu/runtime/efiemu.c (write_cmos): use %cl instead of %bl as
	temporary storage
	* include/grub/i386/tsc.h (grub_get_tsc): restore %rbx/%ebx when 
	using Apple's CC 
	(grub_cpu_is_tsc_supported): likewise
	* loader/i386/xnu.c (guessfsb): restore %rbx/%ebx in inline assembly
This commit is contained in:
phcoder 2009-06-04 20:10:51 +00:00
parent 3e32590112
commit cc6c3ac1bf
4 changed files with 90 additions and 5 deletions
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4
efiemu/runtime/efiemu.c
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@ -162,8 +162,8 @@ static inline void
write_cmos (grub_uint8_t addr, grub_uint8_t val)
{
__asm__ __volatile__ ("outb %%al,$0x70\n"
"mov %%bl, %%al\n"
"outb %%al,$0x71": :"a" (addr), "b" (val));
"mov %%cl, %%al\n"
"outb %%al,$0x71": :"a" (addr), "c" (val));
}
static inline grub_uint8_t