void *user_data,
void *codeloc)
{
- if (cif->abi != FFI_SYSV)
- return FFI_BAD_ABI;
-
+ static unsigned short const template[] = {
+ 0x0d10, /* basr %r1,0 */
#ifndef __s390x__
- *(short *)&closure->tramp [0] = 0x0d10; /* basr %r1,0 */
- *(short *)&closure->tramp [2] = 0x9801; /* lm %r0,%r1,6(%r1) */
- *(short *)&closure->tramp [4] = 0x1006;
- *(short *)&closure->tramp [6] = 0x07f1; /* br %r1 */
- *(long *)&closure->tramp [8] = (long)codeloc;
- *(long *)&closure->tramp[12] = (long)&ffi_closure_SYSV;
+ 0x9801, 0x1006, /* lm %r0,%r1,6(%r1) */
#else
- *(short *)&closure->tramp [0] = 0x0d10; /* basr %r1,0 */
- *(short *)&closure->tramp [2] = 0xeb01; /* lmg %r0,%r1,14(%r1) */
- *(short *)&closure->tramp [4] = 0x100e;
- *(short *)&closure->tramp [6] = 0x0004;
- *(short *)&closure->tramp [8] = 0x07f1; /* br %r1 */
- *(long *)&closure->tramp[16] = (long)codeloc;
- *(long *)&closure->tramp[24] = (long)&ffi_closure_SYSV;
+ 0xeb01, 0x100e, 0x0004, /* lmg %r0,%r1,14(%r1) */
#endif
+ 0x07f1 /* br %r1 */
+ };
+
+ unsigned long *tramp = (unsigned long *)&closure->tramp;
+
+ if (cif->abi != FFI_SYSV)
+ return FFI_BAD_ABI;
+
+ memcpy (tramp, template, sizeof(template));
+ tramp[2] = (unsigned long)codeloc;
+ tramp[3] = (unsigned long)&ffi_closure_SYSV;
closure->cif = cif;
- closure->user_data = user_data;
closure->fun = fun;
+ closure->user_data = user_data;
return FFI_OK;
}