static char callback_handler(DCCallback *cb, DCArgs *cb_args, DCValue *cb_result, MVMNativeCallback *data) {
CallbackInvokeData cid;
MVMint32 num_roots, i;
MVMRegister res;
/* Build a callsite and arguments buffer. */
MVMThreadContext *tc = data->tc;
MVMRegister *args = MVM_malloc(data->num_types * sizeof(MVMRegister));
num_roots = 0;
for (i = 1; i < data->num_types; i++) {
MVMObject *type = data->types[i];
MVMint16 typeinfo = data->typeinfos[i];
switch (typeinfo & MVM_NATIVECALL_ARG_TYPE_MASK) {
case MVM_NATIVECALL_ARG_CHAR:
args[i - 1].i64 = dcbArgChar(cb_args);
break;
case MVM_NATIVECALL_ARG_SHORT:
args[i - 1].i64 = dcbArgShort(cb_args);
break;
case MVM_NATIVECALL_ARG_INT:
args[i - 1].i64 = dcbArgInt(cb_args);
break;
case MVM_NATIVECALL_ARG_LONG:
args[i - 1].i64 = dcbArgLong(cb_args);
break;
case MVM_NATIVECALL_ARG_LONGLONG:
args[i - 1].i64 = dcbArgLongLong(cb_args);
break;
case MVM_NATIVECALL_ARG_FLOAT:
args[i - 1].n64 = dcbArgFloat(cb_args);
break;
case MVM_NATIVECALL_ARG_DOUBLE:
args[i - 1].n64 = dcbArgDouble(cb_args);
break;
case MVM_NATIVECALL_ARG_ASCIISTR:
case MVM_NATIVECALL_ARG_UTF8STR:
case MVM_NATIVECALL_ARG_UTF16STR:
args[i - 1].o = MVM_nativecall_make_str(tc, type, typeinfo,
(char *)dcbArgPointer(cb_args));
MVM_gc_root_temp_push(tc, (MVMCollectable **)&(args[i - 1].o));
num_roots++;
break;
case MVM_NATIVECALL_ARG_CSTRUCT:
args[i - 1].o = MVM_nativecall_make_cstruct(tc, type,
dcbArgPointer(cb_args));
MVM_gc_root_temp_push(tc, (MVMCollectable **)&(args[i - 1].o));
num_roots++;
break;
case MVM_NATIVECALL_ARG_CPOINTER:
args[i - 1].o = MVM_nativecall_make_cpointer(tc, type,
dcbArgPointer(cb_args));
MVM_gc_root_temp_push(tc, (MVMCollectable **)&(args[i - 1].o));
num_roots++;
break;
case MVM_NATIVECALL_ARG_CARRAY:
args[i - 1].o = MVM_nativecall_make_carray(tc, type,
dcbArgPointer(cb_args));
MVM_gc_root_temp_push(tc, (MVMCollectable **)&(args[i - 1].o));
num_roots++;
break;
case MVM_NATIVECALL_ARG_CUNION:
args[i - 1].o = MVM_nativecall_make_cunion(tc, type,
dcbArgPointer(cb_args));
MVM_gc_root_temp_push(tc, (MVMCollectable **)&(args[i - 1].o));
num_roots++;
break;
case MVM_NATIVECALL_ARG_CALLBACK:
/* TODO: A callback -return- value means that we have a C method
* that needs to be wrapped similarly to a is native(...) Perl 6
* sub. */
dcbArgPointer(cb_args);
args[i - 1].o = type;
MVM_gc_root_temp_push(tc, (MVMCollectable **)&(args[i - 1].o));
num_roots++;
case MVM_NATIVECALL_ARG_UCHAR:
args[i - 1].i64 = dcbArgUChar(cb_args);
break;
case MVM_NATIVECALL_ARG_USHORT:
args[i - 1].i64 = dcbArgUShort(cb_args);
break;
case MVM_NATIVECALL_ARG_UINT:
args[i - 1].i64 = dcbArgUInt(cb_args);
break;
case MVM_NATIVECALL_ARG_ULONG:
args[i - 1].i64 = dcbArgULong(cb_args);
break;
case MVM_NATIVECALL_ARG_ULONGLONG:
args[i - 1].i64 = dcbArgULongLong(cb_args);
break;
default:
MVM_exception_throw_adhoc(tc,
"Internal error: unhandled dyncall callback argument type");
}
}
/* Call into a nested interpreter (since we already are in one). Need to
* save a bunch of state around each side of this. */
cid.invokee = data->target;
cid.args = args;
cid.cs = data->cs;
{
MVMuint8 **backup_interp_cur_op = tc->interp_cur_op;
MVMuint8 **backup_interp_bytecode_start = tc->interp_bytecode_start;
MVMRegister **backup_interp_reg_base = tc->interp_reg_base;
MVMCompUnit **backup_interp_cu = tc->interp_cu;
MVMFrame *backup_cur_frame = tc->cur_frame;
MVMFrame *backup_thread_entry_frame = tc->thread_entry_frame;
MVMuint32 backup_mark = MVM_gc_root_temp_mark(tc);
jmp_buf backup_interp_jump;
memcpy(backup_interp_jump, tc->interp_jump, sizeof(jmp_buf));
tc->cur_frame->return_value = &res;
tc->cur_frame->return_type = MVM_RETURN_OBJ;
MVM_interp_run(tc, &callback_invoke, &cid);
tc->interp_cur_op = backup_interp_cur_op;
tc->interp_bytecode_start = backup_interp_bytecode_start;
tc->interp_reg_base = backup_interp_reg_base;
tc->interp_cu = backup_interp_cu;
tc->cur_frame = backup_cur_frame;
tc->thread_entry_frame = backup_thread_entry_frame;
memcpy(tc->interp_jump, backup_interp_jump, sizeof(jmp_buf));
MVM_gc_root_temp_mark_reset(tc, backup_mark);
}
/* Handle return value. */
if (res.o) {
MVMContainerSpec const *contspec = STABLE(res.o)->container_spec;
if (contspec && contspec->fetch_never_invokes)
contspec->fetch(data->tc, res.o, &res);
}
switch (data->typeinfos[0] & MVM_NATIVECALL_ARG_TYPE_MASK) {
case MVM_NATIVECALL_ARG_VOID:
break;
case MVM_NATIVECALL_ARG_CHAR:
cb_result->c = MVM_nativecall_unmarshal_char(data->tc, res.o);
break;
case MVM_NATIVECALL_ARG_SHORT:
cb_result->s = MVM_nativecall_unmarshal_short(data->tc, res.o);
break;
case MVM_NATIVECALL_ARG_INT:
cb_result->i = MVM_nativecall_unmarshal_int(data->tc, res.o);
break;
case MVM_NATIVECALL_ARG_LONG:
cb_result->j = MVM_nativecall_unmarshal_long(data->tc, res.o);
break;
case MVM_NATIVECALL_ARG_LONGLONG:
cb_result->l = MVM_nativecall_unmarshal_longlong(data->tc, res.o);
break;
case MVM_NATIVECALL_ARG_FLOAT:
cb_result->f = MVM_nativecall_unmarshal_float(data->tc, res.o);
break;
case MVM_NATIVECALL_ARG_DOUBLE:
cb_result->d = MVM_nativecall_unmarshal_double(data->tc, res.o);
break;
case MVM_NATIVECALL_ARG_ASCIISTR:
case MVM_NATIVECALL_ARG_UTF8STR:
case MVM_NATIVECALL_ARG_UTF16STR:
cb_result->Z = MVM_nativecall_unmarshal_string(data->tc, res.o, data->typeinfos[0], NULL);
break;
case MVM_NATIVECALL_ARG_CSTRUCT:
cb_result->p = MVM_nativecall_unmarshal_cstruct(data->tc, res.o);
break;
case MVM_NATIVECALL_ARG_CPOINTER:
cb_result->p = MVM_nativecall_unmarshal_cpointer(data->tc, res.o);
break;
case MVM_NATIVECALL_ARG_CARRAY:
cb_result->p = MVM_nativecall_unmarshal_carray(data->tc, res.o);
break;
case MVM_NATIVECALL_ARG_CUNION:
cb_result->p = MVM_nativecall_unmarshal_cunion(data->tc, res.o);
break;
case MVM_NATIVECALL_ARG_VMARRAY:
cb_result->p = MVM_nativecall_unmarshal_vmarray(data->tc, res.o);
break;
case MVM_NATIVECALL_ARG_CALLBACK:
cb_result->p = unmarshal_callback(data->tc, res.o, data->types[0]);
break;
case MVM_NATIVECALL_ARG_UCHAR:
cb_result->c = MVM_nativecall_unmarshal_uchar(data->tc, res.o);
break;
case MVM_NATIVECALL_ARG_USHORT:
cb_result->s = MVM_nativecall_unmarshal_ushort(data->tc, res.o);
break;
case MVM_NATIVECALL_ARG_UINT:
cb_result->i = MVM_nativecall_unmarshal_uint(data->tc, res.o);
break;
case MVM_NATIVECALL_ARG_ULONG:
cb_result->j = MVM_nativecall_unmarshal_ulong(data->tc, res.o);
break;
case MVM_NATIVECALL_ARG_ULONGLONG:
cb_result->l = MVM_nativecall_unmarshal_ulonglong(data->tc, res.o);
break;
default:
MVM_exception_throw_adhoc(data->tc,
"Internal error: unhandled dyncall callback return type");
}
/* Clean up. */
MVM_gc_root_temp_pop_n(tc, num_roots);
MVM_free(args);
/* Indicate what we're producing as a result. */
return get_signature_char(data->typeinfos[0]);
}
MVMObject * MVM_nativecall_invoke(MVMThreadContext *tc, MVMObject *res_type,
MVMObject *site, MVMObject *args) {
MVMObject *result = NULL;
char **free_strs = NULL;
void **free_rws = NULL;
MVMint16 num_strs = 0;
MVMint16 num_rws = 0;
MVMint16 i;
/* Get native call body, so we can locate the call info. Read out all we
* shall need, since later we may allocate a result and and move it. */
MVMNativeCallBody *body = MVM_nativecall_get_nc_body(tc, site);
MVMint16 num_args = body->num_args;
MVMint16 *arg_types = body->arg_types;
MVMint16 ret_type = body->ret_type;
void *entry_point = body->entry_point;
/* Create and set up call VM. */
DCCallVM *vm = dcNewCallVM(8192);
dcMode(vm, body->convention);
/* Process arguments. */
for (i = 0; i < num_args; i++) {
MVMObject *value = MVM_repr_at_pos_o(tc, args, i);
switch (arg_types[i] & MVM_NATIVECALL_ARG_TYPE_MASK) {
case MVM_NATIVECALL_ARG_CHAR:
handle_arg("integer", cont_i, DCchar, i64, dcArgChar, MVM_nativecall_unmarshal_char);
break;
case MVM_NATIVECALL_ARG_SHORT:
handle_arg("integer", cont_i, DCshort, i64, dcArgShort, MVM_nativecall_unmarshal_short);
break;
case MVM_NATIVECALL_ARG_INT:
handle_arg("integer", cont_i, DCint, i64, dcArgInt, MVM_nativecall_unmarshal_int);
break;
case MVM_NATIVECALL_ARG_LONG:
handle_arg("integer", cont_i, DClong, i64, dcArgLong, MVM_nativecall_unmarshal_long);
break;
case MVM_NATIVECALL_ARG_LONGLONG:
handle_arg("integer", cont_i, DClonglong, i64, dcArgLongLong, MVM_nativecall_unmarshal_longlong);
break;
case MVM_NATIVECALL_ARG_FLOAT:
handle_arg("number", cont_n, DCfloat, n64, dcArgFloat, MVM_nativecall_unmarshal_float);
break;
case MVM_NATIVECALL_ARG_DOUBLE:
handle_arg("number", cont_n, DCdouble, n64, dcArgDouble, MVM_nativecall_unmarshal_double);
break;
case MVM_NATIVECALL_ARG_ASCIISTR:
case MVM_NATIVECALL_ARG_UTF8STR:
case MVM_NATIVECALL_ARG_UTF16STR:
{
MVMint16 free = 0;
char *str = MVM_nativecall_unmarshal_string(tc, value, arg_types[i], &free);
if (free) {
if (!free_strs)
free_strs = (char**)MVM_malloc(num_args * sizeof(char *));
free_strs[num_strs] = str;
num_strs++;
}
dcArgPointer(vm, str);
}
break;
case MVM_NATIVECALL_ARG_CSTRUCT:
dcArgPointer(vm, MVM_nativecall_unmarshal_cstruct(tc, value));
break;
case MVM_NATIVECALL_ARG_CPOINTER:
dcArgPointer(vm, MVM_nativecall_unmarshal_cpointer(tc, value));
break;
case MVM_NATIVECALL_ARG_CARRAY:
dcArgPointer(vm, MVM_nativecall_unmarshal_carray(tc, value));
break;
case MVM_NATIVECALL_ARG_CUNION:
dcArgPointer(vm, MVM_nativecall_unmarshal_cunion(tc, value));
break;
case MVM_NATIVECALL_ARG_VMARRAY:
dcArgPointer(vm, MVM_nativecall_unmarshal_vmarray(tc, value));
break;
case MVM_NATIVECALL_ARG_CALLBACK:
dcArgPointer(vm, unmarshal_callback(tc, value, body->arg_info[i]));
break;
case MVM_NATIVECALL_ARG_UCHAR:
handle_arg("integer", cont_i, DCuchar, i64, dcArgChar, MVM_nativecall_unmarshal_uchar);
break;
case MVM_NATIVECALL_ARG_USHORT:
handle_arg("integer", cont_i, DCushort, i64, dcArgShort, MVM_nativecall_unmarshal_ushort);
break;
case MVM_NATIVECALL_ARG_UINT:
handle_arg("integer", cont_i, DCuint, i64, dcArgInt, MVM_nativecall_unmarshal_uint);
break;
case MVM_NATIVECALL_ARG_ULONG:
handle_arg("integer", cont_i, DCulong, i64, dcArgLong, MVM_nativecall_unmarshal_ulong);
break;
case MVM_NATIVECALL_ARG_ULONGLONG:
handle_arg("integer", cont_i, DCulonglong, i64, dcArgLongLong, MVM_nativecall_unmarshal_ulonglong);
break;
default:
MVM_exception_throw_adhoc(tc, "Internal error: unhandled dyncall argument type");
}
}
/* Call and process return values. */
MVMROOT(tc, args, {
MVMROOT(tc, res_type, {
switch (ret_type & MVM_NATIVECALL_ARG_TYPE_MASK) {
case MVM_NATIVECALL_ARG_VOID:
dcCallVoid(vm, entry_point);
result = res_type;
break;
case MVM_NATIVECALL_ARG_CHAR:
result = MVM_nativecall_make_int(tc, res_type, dcCallChar(vm, entry_point));
break;
case MVM_NATIVECALL_ARG_SHORT:
result = MVM_nativecall_make_int(tc, res_type, dcCallShort(vm, entry_point));
break;
case MVM_NATIVECALL_ARG_INT:
result = MVM_nativecall_make_int(tc, res_type, dcCallInt(vm, entry_point));
break;
case MVM_NATIVECALL_ARG_LONG:
result = MVM_nativecall_make_int(tc, res_type, dcCallLong(vm, entry_point));
break;
case MVM_NATIVECALL_ARG_LONGLONG:
result = MVM_nativecall_make_int(tc, res_type, dcCallLongLong(vm, entry_point));
break;
case MVM_NATIVECALL_ARG_FLOAT:
result = MVM_nativecall_make_num(tc, res_type, dcCallFloat(vm, entry_point));
break;
case MVM_NATIVECALL_ARG_DOUBLE:
result = MVM_nativecall_make_num(tc, res_type, dcCallDouble(vm, entry_point));
break;
case MVM_NATIVECALL_ARG_ASCIISTR:
case MVM_NATIVECALL_ARG_UTF8STR:
case MVM_NATIVECALL_ARG_UTF16STR:
result = MVM_nativecall_make_str(tc, res_type, body->ret_type,
(char *)dcCallPointer(vm, entry_point));
break;
case MVM_NATIVECALL_ARG_CSTRUCT:
result = MVM_nativecall_make_cstruct(tc, res_type, dcCallPointer(vm, body->entry_point));
break;
case MVM_NATIVECALL_ARG_CPOINTER:
result = MVM_nativecall_make_cpointer(tc, res_type, dcCallPointer(vm, body->entry_point));
break;
case MVM_NATIVECALL_ARG_CARRAY:
result = MVM_nativecall_make_carray(tc, res_type, dcCallPointer(vm, body->entry_point));
break;
case MVM_NATIVECALL_ARG_CUNION:
result = MVM_nativecall_make_cunion(tc, res_type, dcCallPointer(vm, body->entry_point));
break;
case MVM_NATIVECALL_ARG_CALLBACK:
/* TODO: A callback -return- value means that we have a C method
* that needs to be wrapped similarly to a is native(...) Perl 6
* sub. */
dcCallPointer(vm, body->entry_point);
result = res_type;
break;
case MVM_NATIVECALL_ARG_UCHAR:
result = MVM_nativecall_make_uint(tc, res_type, (DCuchar)dcCallChar(vm, entry_point));
break;
case MVM_NATIVECALL_ARG_USHORT:
result = MVM_nativecall_make_uint(tc, res_type, (DCushort)dcCallShort(vm, entry_point));
break;
case MVM_NATIVECALL_ARG_UINT:
result = MVM_nativecall_make_uint(tc, res_type, (DCuint)dcCallInt(vm, entry_point));
break;
case MVM_NATIVECALL_ARG_ULONG:
result = MVM_nativecall_make_uint(tc, res_type, (DCulong)dcCallLong(vm, entry_point));
break;
case MVM_NATIVECALL_ARG_ULONGLONG:
result = MVM_nativecall_make_uint(tc, res_type, (DCulonglong)dcCallLongLong(vm, entry_point));
break;
default:
MVM_exception_throw_adhoc(tc, "Internal error: unhandled dyncall return type");
}
});
});
static void callback_handler(ffi_cif *cif, void *cb_result, void **cb_args, void *cb_data) {
CallbackInvokeData cid;
MVMint32 num_roots, i;
MVMRegister res;
MVMRegister *args;
MVMNativeCallback *data = (MVMNativeCallback *)cb_data;
void **values = MVM_malloc(sizeof(void *) * (data->cs->arg_count ? data->cs->arg_count : 1));
unsigned int interval_id;
/* Locate the MoarVM thread this callback is being run on. */
MVMThreadContext *tc = MVM_nativecall_find_thread_context(data->instance);
/* Unblock GC if needed, so this thread can do work. */
MVMint32 was_blocked = MVM_gc_is_thread_blocked(tc);
if (was_blocked)
MVM_gc_mark_thread_unblocked(tc);
interval_id = MVM_telemetry_interval_start(tc, "nativecall callback handler");
/* Build a callsite and arguments buffer. */
args = MVM_malloc(data->num_types * sizeof(MVMRegister));
num_roots = 0;
for (i = 1; i < data->num_types; i++) {
MVMObject *type = data->types[i];
MVMint16 typeinfo = data->typeinfos[i];
switch (typeinfo & MVM_NATIVECALL_ARG_TYPE_MASK) {
case MVM_NATIVECALL_ARG_CHAR:
args[i - 1].i64 = *(signed char *)cb_args[i - 1];
break;
case MVM_NATIVECALL_ARG_SHORT:
args[i - 1].i64 = *(signed short *)cb_args[i - 1];
break;
case MVM_NATIVECALL_ARG_INT:
args[i - 1].i64 = *(signed int *)cb_args[i - 1];
break;
case MVM_NATIVECALL_ARG_LONG:
args[i - 1].i64 = *(signed long *)cb_args[i - 1];
break;
case MVM_NATIVECALL_ARG_LONGLONG:
args[i - 1].i64 = *(signed long long *)cb_args[i - 1];
break;
case MVM_NATIVECALL_ARG_FLOAT:
args[i - 1].n64 = *(float *)cb_args[i - 1];
break;
case MVM_NATIVECALL_ARG_DOUBLE:
args[i - 1].n64 = *(double *)cb_args[i - 1];
break;
case MVM_NATIVECALL_ARG_ASCIISTR:
case MVM_NATIVECALL_ARG_UTF8STR:
case MVM_NATIVECALL_ARG_UTF16STR:
args[i - 1].o = MVM_nativecall_make_str(tc, type, typeinfo, *(char **)cb_args[i - 1]);
MVM_gc_root_temp_push(tc, (MVMCollectable **)&(args[i - 1].o));
num_roots++;
break;
case MVM_NATIVECALL_ARG_CSTRUCT:
args[i - 1].o = MVM_nativecall_make_cstruct(tc, type, *(void **)cb_args[i - 1]);
MVM_gc_root_temp_push(tc, (MVMCollectable **)&(args[i - 1].o));
num_roots++;
break;
case MVM_NATIVECALL_ARG_CPPSTRUCT:
args[i - 1].o = MVM_nativecall_make_cppstruct(tc, type, *(void **)cb_args[i - 1]);
MVM_gc_root_temp_push(tc, (MVMCollectable **)&(args[i - 1].o));
num_roots++;
break;
case MVM_NATIVECALL_ARG_CPOINTER:
args[i - 1].o = MVM_nativecall_make_cpointer(tc, type, *(void **)cb_args[i - 1]);
MVM_gc_root_temp_push(tc, (MVMCollectable **)&(args[i - 1].o));
num_roots++;
break;
case MVM_NATIVECALL_ARG_CARRAY:
args[i - 1].o = MVM_nativecall_make_carray(tc, type, *(void **)cb_args[i - 1]);
MVM_gc_root_temp_push(tc, (MVMCollectable **)&(args[i - 1].o));
num_roots++;
break;
case MVM_NATIVECALL_ARG_CUNION:
args[i - 1].o = MVM_nativecall_make_cunion(tc, type, *(void **)cb_args[i - 1]);
MVM_gc_root_temp_push(tc, (MVMCollectable **)&(args[i - 1].o));
num_roots++;
break;
case MVM_NATIVECALL_ARG_CALLBACK:
/* TODO: A callback -return- value means that we have a C method
* that needs to be wrapped similarly to a is native(...) Perl 6
* sub. */
/* XXX do something with the function pointer: *(void **)cb_args[i - 1] */
args[i - 1].o = type;
MVM_gc_root_temp_push(tc, (MVMCollectable **)&(args[i - 1].o));
num_roots++;
case MVM_NATIVECALL_ARG_UCHAR:
args[i - 1].i64 = *(unsigned char *)cb_args[i - 1];
break;
case MVM_NATIVECALL_ARG_USHORT:
args[i - 1].i64 = *(unsigned short *)cb_args[i - 1];
break;
case MVM_NATIVECALL_ARG_UINT:
args[i - 1].i64 = *(unsigned int *)cb_args[i - 1];
break;
case MVM_NATIVECALL_ARG_ULONG:
args[i - 1].i64 = *(unsigned long *)cb_args[i - 1];
break;
case MVM_NATIVECALL_ARG_ULONGLONG:
args[i - 1].i64 = *(unsigned long long *)cb_args[i - 1];
break;
default:
MVM_telemetry_interval_stop(tc, interval_id, "nativecall callback handler failed");
MVM_exception_throw_adhoc(tc,
"Internal error: unhandled libffi callback argument type");
}
}
/* Call into a nested interpreter (since we already are in one). Need to
* save a bunch of state around each side of this. */
cid.invokee = data->target;
cid.args = args;
cid.cs = data->cs;
{
MVMuint8 **backup_interp_cur_op = tc->interp_cur_op;
MVMuint8 **backup_interp_bytecode_start = tc->interp_bytecode_start;
MVMRegister **backup_interp_reg_base = tc->interp_reg_base;
MVMCompUnit **backup_interp_cu = tc->interp_cu;
MVMFrame *backup_cur_frame = MVM_frame_force_to_heap(tc, tc->cur_frame);
MVMFrame *backup_thread_entry_frame = tc->thread_entry_frame;
void **backup_jit_return_address = tc->jit_return_address;
tc->jit_return_address = NULL;
MVMROOT2(tc, backup_cur_frame, backup_thread_entry_frame, {
MVMuint32 backup_mark = MVM_gc_root_temp_mark(tc);
jmp_buf backup_interp_jump;
memcpy(backup_interp_jump, tc->interp_jump, sizeof(jmp_buf));
tc->cur_frame->return_value = &res;
tc->cur_frame->return_type = MVM_RETURN_OBJ;
MVM_interp_run(tc, callback_invoke, &cid);
tc->interp_cur_op = backup_interp_cur_op;
tc->interp_bytecode_start = backup_interp_bytecode_start;
tc->interp_reg_base = backup_interp_reg_base;
tc->interp_cu = backup_interp_cu;
tc->cur_frame = backup_cur_frame;
tc->current_frame_nr = backup_cur_frame->sequence_nr;
tc->thread_entry_frame = backup_thread_entry_frame;
tc->jit_return_address = backup_jit_return_address;
memcpy(tc->interp_jump, backup_interp_jump, sizeof(jmp_buf));
MVM_gc_root_temp_mark_reset(tc, backup_mark);
});
}