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exception.h: Preserve registers when calling RtlUnwind.

This commit is contained in:
Alexandre Julliard 2008-05-01 11:07:53 +02:00
parent c20e8c9005
commit 69c29866c1
1 changed files with 19 additions and 0 deletions
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19
include/wine/exception.h
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@ -233,7 +233,26 @@ static inline void DECLSPEC_NORETURN __wine_unwind_frame( EXCEPTION_RECORD *reco
wine_frame->ExceptionCode = record->ExceptionCode;
wine_frame->ExceptionRecord = wine_frame;
#if defined(__GNUC__) && defined(__i386__)
{
/* RtlUnwind clobbers registers on Windows */
int dummy1, dummy2, dummy3;
__asm__ __volatile__("pushl %%ebp\n\t"
"pushl %%ebx\n\t"
"pushl $0\n\t"
"pushl %2\n\t"
"pushl $0\n\t"
"pushl %1\n\t"
"call *%0\n\t"
"popl %%ebx\n\t"
"popl %%ebp"
: "=a" (dummy1), "=S" (dummy2), "=D" (dummy3)
: "0" (RtlUnwind), "1" (frame), "2" (record)
: "ecx", "edx", "memory" );
}
#else
RtlUnwind( frame, 0, record, 0 );
#endif
__wine_pop_frame( frame );
siglongjmp( wine_frame->jmp, 1 );
}