/**
* Advance past the reti (or virtual reti) according to |step|.
* Return 0 if successful, or nonzero if an unhandled trap occurred.
*/
static int exit_syscall(struct context* ctx,
const struct rep_trace_step* step,
int stepi)
{
int i, emu = step->syscall.emu;
if (!emu) {
int ret = cont_syscall_boundary(ctx, emu, stepi);
if (ret) {
return ret;
}
}
for (i = 0; i < step->syscall.num_emu_args; ++i) {
set_child_data(ctx);
}
if (step->syscall.emu_ret) {
set_return_value(ctx);
}
validate_args(step->syscall.no, STATE_SYSCALL_EXIT, ctx);
if (emu) {
/* XXX verify that this can't be interrupted by a
* breakpoint trap */
step_exit_syscall_emu(ctx);
}
return 0;
}
//! It seems that shared code cache does not support helper switch
//! The return value is stored to glue->retval first
int op_return_wide() {
u2 vA = INST_AA(inst);
get_virtual_reg(vA, OpndSize_64, 1, false);
scratchRegs[0] = PhysicalReg_SCRATCH_10; scratchRegs[1] = PhysicalReg_Null;
scratchRegs[2] = PhysicalReg_Null; scratchRegs[3] = PhysicalReg_Null;
set_return_value(OpndSize_64, 1, false);
common_returnFromMethod();
rPC += 1;
return 0;
}
//! It seems that shared code cache does not support helper switch
//! The return value is stored to glue->retval first
int op_return() {
u2 vA = INST_AA(inst);
get_virtual_reg(vA, OpndSize_32, 22, false);
scratchRegs[0] = PhysicalReg_SCRATCH_1;
set_return_value(OpndSize_32, 22, false);
common_returnFromMethod();
rPC += 1;
return 0;
}
