// in a reasonable state for the GC and so that
// execution of this BCO can continue when we resume
ioAction = (StgClosure *) deRefStablePtr (rts_breakpoint_io_action);
- Sp -= 8;
- Sp[7] = (W_)obj;
- Sp[6] = (W_)&stg_apply_interp_info;
+ Sp -= 9;
+ Sp[8] = (W_)obj;
+ Sp[7] = (W_)&stg_apply_interp_info;
+ Sp[6] = (W_)&stg_noforceIO_info; // see [unreg] below
Sp[5] = (W_)new_aps; // the AP_STACK
Sp[4] = (W_)BCO_PTR(arg3_freeVars); // the info about local vars of the breakpoint
Sp[3] = (W_)False_closure; // True <=> a breakpoint
Sp[2] = (W_)&stg_ap_pppv_info;
Sp[1] = (W_)ioAction; // apply the IO action to its two arguments above
Sp[0] = (W_)&stg_enter_info; // get ready to run the IO action
+ // Note [unreg]: in unregisterised mode, the return
+ // convention for IO is different. The
+ // stg_noForceIO_info stack frame is necessary to
+ // account for this difference.
// set the flag in the TSO to say that we are now
// stopping at a breakpoint so that when we resume
goto nextInsn;
}
+ case bci_ALLOC_AP_NOUPD: {
+ StgAP* ap;
+ int n_payload = BCO_NEXT;
+ ap = (StgAP*)allocate(AP_sizeW(n_payload));
+ Sp[-1] = (W_)ap;
+ ap->n_args = n_payload;
+ SET_HDR(ap, &stg_AP_NOUPD_info, CCS_SYSTEM/*ToDo*/)
+ Sp --;
+ goto nextInsn;
+ }
+
case bci_ALLOC_PAP: {
StgPAP* pap;
int arity = BCO_NEXT;
// Errors
default:
barf("interpretBCO: unknown or unimplemented opcode %d",
- (int)BCO_NEXT);
+ (int)(bci & 0xFF));
} /* switch on opcode */
}