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don't copy win64 struct args

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This commit is contained in:
Anthony Green
2010-08-05 08:24:27 -04:00
parent d14178be4c
commit 10ea848900
10 changed files with 5571 additions and 22 deletions
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23
src/x86/ffi.c
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@@ -291,27 +291,8 @@ void ffi_call(ffi_cif *cif, void (*fn)(void), void *rvalue, void **avalue)
{
#ifdef X86_WIN64
case FFI_WIN64:
{
/* Make copies of all struct arguments
NOTE: not sure if responsibility should be here or in caller */
unsigned int i;
for (i=0; i < cif->nargs;i++) {
size_t size = cif->arg_types[i]->size;
if ((cif->arg_types[i]->type == FFI_TYPE_STRUCT
&& (size != 1 && size != 2 && size != 4 && size != 8))
#if FFI_TYPE_LONGDOUBLE != FFI_TYPE_DOUBLE
|| cif->arg_types[i]->type == FFI_TYPE_LONGDOUBLE
#endif
)
{
void *local = alloca(size);
memcpy(local, avalue[i], size);
avalue[i] = local;
}
}
ffi_call_win64(ffi_prep_args, &ecif, cif->bytes,
cif->flags, ecif.rvalue, fn);
}
ffi_call_win64(ffi_prep_args, &ecif, cif->bytes,
cif->flags, ecif.rvalue, fn);
break;
#elif defined(X86_WIN32)
case FFI_SYSV: