#include "Cmm.h"
#include "RaiseAsync.h"
+import ghczmprim_GHCziBool_True_closure;
+
/* -----------------------------------------------------------------------------
Exception Primitives
-------------------------------------------------------------------------- */
-INFO_TABLE_RET( stg_unblockAsyncExceptionszh_ret,
- 0/*framesize*/, 0/*bitmap*/, RET_SMALL )
+INFO_TABLE_RET( stg_unblockAsyncExceptionszh_ret, RET_SMALL )
{
CInt r;
* thread, which might result in the thread being killed.
*/
-#ifndef REG_R1
- /*
- * raiseAsync assumes that the stack is in ThreadRunGHC state,
- * i.e. with a return address on the top. In unreg mode, the
- * return value for IO is on top of the return address, so we
- * need to make a small adjustment here.
- */
- Sp_adj(1);
-#endif
+ STK_CHK_GEN( WDS(2), R1_PTR, stg_unblockAsyncExceptionszh_ret_info);
+ Sp_adj(-2);
+ Sp(1) = R1;
+ Sp(0) = stg_gc_unpt_r1_info;
SAVE_THREAD_STATE();
- r = foreign "C" maybePerformBlockedException (MyCapability() "ptr",
+ (r) = foreign "C" maybePerformBlockedException (MyCapability() "ptr",
CurrentTSO "ptr") [R1];
if (r != 0::CInt) {
jump %ENTRY_CODE(Sp(0));
}
}
-#ifndef REG_R1
- /*
- * Readjust stack in unregisterised mode if we didn't raise an
- * exception, see above
- */
- else {
- Sp_adj(-1);
- }
-#endif
}
-#ifdef REG_R1
Sp_adj(1);
jump %ENTRY_CODE(Sp(0));
-#else
- Sp(1) = Sp(0);
- Sp_adj(1);
- jump %ENTRY_CODE(Sp(1));
-#endif
}
-INFO_TABLE_RET( stg_blockAsyncExceptionszh_ret,
- 0/*framesize*/, 0/*bitmap*/, RET_SMALL )
+INFO_TABLE_RET( stg_blockAsyncExceptionszh_ret, RET_SMALL )
{
StgTSO_flags(CurrentTSO) =
StgTSO_flags(CurrentTSO) | TSO_BLOCKEX::I32 | TSO_INTERRUPTIBLE::I32;
-#ifdef REG_R1
Sp_adj(1);
jump %ENTRY_CODE(Sp(0));
-#else
- Sp(1) = Sp(0);
- Sp_adj(1);
- jump %ENTRY_CODE(Sp(1));
-#endif
}
blockAsyncExceptionszh_fast
* thread, which might result in the thread being killed.
*/
SAVE_THREAD_STATE();
- r = foreign "C" maybePerformBlockedException (MyCapability() "ptr",
+ (r) = foreign "C" maybePerformBlockedException (MyCapability() "ptr",
CurrentTSO "ptr") [R1];
if (r != 0::CInt) {
jump stg_ap_v_fast;
}
+asyncExceptionsBlockedzh_fast
+{
+ /* args: none */
+ if ((TO_W_(StgTSO_flags(CurrentTSO)) & TSO_BLOCKEX) != 0) {
+ RET_N(1);
+ } else {
+ RET_N(0);
+ }
+}
killThreadzh_fast
{
* If the exception went to a catch frame, we'll just continue from
* the handler.
*/
+ loop:
+ if (StgTSO_what_next(target) == ThreadRelocated::I16) {
+ target = StgTSO__link(target);
+ goto loop;
+ }
if (target == CurrentTSO) {
SAVE_THREAD_STATE();
/* ToDo: what if the current thread is blocking exceptions? */
W_ retcode;
out = BaseReg + OFFSET_StgRegTable_rmp_tmp_w;
- retcode = foreign "C" throwTo(MyCapability() "ptr",
+ (retcode) = foreign "C" throwTo(MyCapability() "ptr",
CurrentTSO "ptr",
target "ptr",
exception "ptr",
Catch frames
-------------------------------------------------------------------------- */
-#ifdef REG_R1
#define SP_OFF 0
-#else
-#define SP_OFF 1
-#endif
-
-#if defined(PROFILING)
-#define CATCH_FRAME_BITMAP 7
-#define CATCH_FRAME_WORDS 4
-#else
-#define CATCH_FRAME_BITMAP 1
-#define CATCH_FRAME_WORDS 2
-#endif
/* Catch frames are very similar to update frames, but when entering
* one we just pop the frame off the stack and perform the correct
* kind of return to the activation record underneath us on the stack.
*/
-INFO_TABLE_RET(stg_catch_frame,
- CATCH_FRAME_WORDS, CATCH_FRAME_BITMAP,
- CATCH_FRAME)
-#ifdef REG_R1
- {
- Sp = Sp + SIZEOF_StgCatchFrame;
- jump %ENTRY_CODE(Sp(SP_OFF));
- }
-#else
+INFO_TABLE_RET(stg_catch_frame, CATCH_FRAME,
+#if defined(PROFILING)
+ W_ unused1, W_ unused2,
+#endif
+ W_ unused3, P_ unused4)
{
- W_ rval;
- rval = Sp(0);
Sp = Sp + SIZEOF_StgCatchFrame;
- Sp(0) = rval;
jump %ENTRY_CODE(Sp(SP_OFF));
}
-#endif
/* -----------------------------------------------------------------------------
* The catch infotable
no_break_on_exception: W_[1];
}
-INFO_TABLE_RET(stg_raise_ret, 1, 0, RET_SMALL)
+INFO_TABLE_RET(stg_raise_ret, RET_SMALL, P_ arg1)
{
R1 = Sp(1);
Sp = Sp + WDS(2);
retry_pop_stack:
StgTSO_sp(CurrentTSO) = Sp;
- frame_type = foreign "C" raiseExceptionHelper(BaseReg "ptr", CurrentTSO "ptr", exception "ptr") [];
+ (frame_type) = foreign "C" raiseExceptionHelper(BaseReg "ptr", CurrentTSO "ptr", exception "ptr") [];
Sp = StgTSO_sp(CurrentTSO);
if (frame_type == ATOMICALLY_FRAME) {
/* The exception has reached the edge of a memory transaction. Check that
W_ trec, outer;
W_ r;
trec = StgTSO_trec(CurrentTSO);
- r = foreign "C" stmValidateNestOfTransactions(trec "ptr") [];
- "ptr" outer = foreign "C" stmGetEnclosingTRec(trec "ptr") [];
+ (r) = foreign "C" stmValidateNestOfTransactions(trec "ptr") [];
+ ("ptr" outer) = foreign "C" stmGetEnclosingTRec(trec "ptr") [];
foreign "C" stmAbortTransaction(MyCapability() "ptr", trec "ptr") [];
foreign "C" stmFreeAbortedTRec(MyCapability() "ptr", trec "ptr") [];
} else {
// Transaction was not valid: we retry the exception (otherwise continue
// with a further call to raiseExceptionHelper)
- "ptr" trec = foreign "C" stmStartTransaction(MyCapability() "ptr", NO_TREC "ptr") [];
+ ("ptr" trec) = foreign "C" stmStartTransaction(MyCapability() "ptr", NO_TREC "ptr") [];
StgTSO_trec(CurrentTSO) = trec;
R1 = StgAtomicallyFrame_code(Sp);
jump stg_ap_v_fast;
// for exmplae. Perhaps the stop_on_exception flag should
// be per-thread.
W_[rts_stop_on_exception] = 0;
- "ptr" ioAction = foreign "C" deRefStablePtr (W_[rts_breakpoint_io_action] "ptr") [];
- Sp = Sp - WDS(6);
- Sp(5) = exception;
- Sp(4) = stg_raise_ret_info;
+ ("ptr" ioAction) = foreign "C" deRefStablePtr (W_[rts_breakpoint_io_action] "ptr") [];
+ Sp = Sp - WDS(7);
+ Sp(6) = exception;
+ Sp(5) = stg_raise_ret_info;
+ Sp(4) = stg_noforceIO_info; // required for unregisterised
Sp(3) = exception; // the AP_STACK
- Sp(2) = base_GHCziBase_True_closure; // dummy breakpoint info
- Sp(1) = base_GHCziBase_True_closure; // True <=> a breakpoint
+ Sp(2) = ghczmprim_GHCziBool_True_closure; // dummy breakpoint info
+ Sp(1) = ghczmprim_GHCziBool_True_closure; // True <=> a breakpoint
R1 = ioAction;
- jump stg_ap_pppv_info;
+ jump RET_LBL(stg_ap_pppv);
}
}
} else {
W_ trec, outer;
trec = StgTSO_trec(CurrentTSO);
- "ptr" outer = foreign "C" stmGetEnclosingTRec(trec "ptr") [];
+ ("ptr" outer) = foreign "C" stmGetEnclosingTRec(trec "ptr") [];
foreign "C" stmAbortTransaction(MyCapability() "ptr", trec "ptr") [];
foreign "C" stmFreeAbortedTRec(MyCapability() "ptr", trec "ptr") [];
StgTSO_trec(CurrentTSO) = outer;
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