[MPlayer-dev-eng] symbol mangling prob on win32

[Felix Buenemann]

Hi,

I just found out, that on win32 there's a prob with the symbol mangling of 
variables used inside inline asm, here's an example with (one way) to fix:

#include <stdio.h>
#include <inttypes.h>
static const uint64_t bFF  __attribute__((aligned(8))) = 
0xFFFFFFFFFFFFFFFFULL;
#ifndef __CYGWIN__
#define _bFF "bFF"
#else
#define _bFF "_bFF"
#endif

int main(void) {
  asm volatile("movq "_bFF", %%mm0;":::"memory");
  printf("bFF: %lld\n", bFF);
  return 0;
}

What do you think, is the best way to handle the problem (var in inline asm 
on win32 must be _var, but outside inline asm stays var)?

IMHO redefining symbolnames with objcopy is not possible here, as it would 
probably only reverse the problem, when both var and var inside asm are used 
in same object file, at least it didn't work when I tested it.

Maybe we could directly insert varvalues into code, I think it's all const 
values, but I'm not sure alignment is correct then.
-- 
Best Regards,
	Atmos
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