* Copyright (c) The GHC Team, 1994-2002.
* ---------------------------------------------------------------------------*/
-#if !defined(SMP)
#include "PosixSource.h"
-#else
-/* Hack and slash.. */
-#include "Stg.h"
-#endif
#include "Rts.h"
#include "RtsAPI.h"
#include "RtsUtils.h"
#include "Schedule.h"
#include "RtsFlags.h"
#include "Storage.h"
+#include "LdvProfile.h"
#include "Updates.h"
#include "Sanity.h"
+#include "Liveness.h"
#include "Bytecodes.h"
#include "Printer.h"
#include "Disassembler.h"
#include "Interpreter.h"
+#include <string.h> /* for memcpy */
+#ifdef HAVE_ERRNO_H
+#include <errno.h>
+#endif
+
/* --------------------------------------------------------------------------
* The bytecode interpreter
return (retcode);
-static inline StgPtr
+STATIC_INLINE StgPtr
allocate_UPD (int n_words)
{
return allocate(stg_max(sizeofW(StgHeader)+MIN_UPD_SIZE, n_words));
}
-static inline StgPtr
+STATIC_INLINE StgPtr
allocate_NONUPD (int n_words)
{
return allocate(stg_max(sizeofW(StgHeader)+MIN_NONUPD_SIZE, n_words));
void interp_shutdown ( void )
{
int i, j, k, o_max, i_max, j_max;
- fprintf(stderr, "%d constrs entered -> (%d BCO, %d UPD, %d ??? )\n",
+ debugBelch("%d constrs entered -> (%d BCO, %d UPD, %d ??? )\n",
it_retto_BCO + it_retto_UPDATE + it_retto_other,
it_retto_BCO, it_retto_UPDATE, it_retto_other );
- fprintf(stderr, "%d total entries, %d unknown entries \n",
+ debugBelch("%d total entries, %d unknown entries \n",
it_total_entries, it_total_unknown_entries);
for (i = 0; i < N_CLOSURE_TYPES; i++) {
if (it_unknown_entries[i] == 0) continue;
- fprintf(stderr, " type %2d: unknown entries (%4.1f%%) == %d\n",
+ debugBelch(" type %2d: unknown entries (%4.1f%%) == %d\n",
i, 100.0 * ((double)it_unknown_entries[i]) /
((double)it_total_unknown_entries),
it_unknown_entries[i]);
}
- fprintf(stderr, "%d insns, %d slides, %d BCO_entries\n",
+ debugBelch("%d insns, %d slides, %d BCO_entries\n",
it_insns, it_slides, it_BCO_entries);
for (i = 0; i < 27; i++)
- fprintf(stderr, "opcode %2d got %d\n", i, it_ofreq[i] );
+ debugBelch("opcode %2d got %d\n", i, it_ofreq[i] );
for (k = 1; k < 20; k++) {
o_max = 0;
}
}
- fprintf ( stderr, "%d: count (%4.1f%%) %6d is %d then %d\n",
+ debugBelch("%d: count (%4.1f%%) %6d is %d then %d\n",
k, ((double)o_max) * 100.0 / ((double)it_insns), o_max,
i_max, j_max );
it_oofreq[i_max][j_max] = 0;
(W_)&stg_ap_pppp_info,
(W_)&stg_ap_ppppp_info,
(W_)&stg_ap_pppppp_info,
- (W_)&stg_ap_ppppppp_info
};
StgThreadReturnCode
INTERP_TICK(it_total_evals);
IF_DEBUG(interpreter,
- fprintf(stderr,
+ debugBelch(
"\n---------------------------------------------------------------\n");
- fprintf(stderr,"Evaluating: "); printObj(obj);
- fprintf(stderr,"Sp = %p\n", Sp);
- fprintf(stderr, "\n" );
+ debugBelch("Evaluating: "); printObj(obj);
+ debugBelch("Sp = %p\n", Sp);
+ debugBelch("\n" );
printStackChunk(Sp,cap->r.rCurrentTSO->stack+cap->r.rCurrentTSO->stack_size);
- fprintf(stderr, "\n\n");
+ debugBelch("\n\n");
);
IF_DEBUG(sanity,checkStackChunk(Sp, cap->r.rCurrentTSO->stack+cap->r.rCurrentTSO->stack_size));
{
// Can't handle this object; yield to scheduler
IF_DEBUG(interpreter,
- fprintf(stderr, "evaluating unknown closure -- yielding to sched\n");
+ debugBelch("evaluating unknown closure -- yielding to sched\n");
printObj(obj);
);
Sp -= 2;
ASSERT(closure_HNF(obj));
IF_DEBUG(interpreter,
- fprintf(stderr,
+ debugBelch(
"\n---------------------------------------------------------------\n");
- fprintf(stderr,"Returning: "); printObj(obj);
- fprintf(stderr,"Sp = %p\n", Sp);
- fprintf(stderr, "\n" );
+ debugBelch("Returning: "); printObj(obj);
+ debugBelch("Sp = %p\n", Sp);
+ debugBelch("\n" );
printStackChunk(Sp,cap->r.rCurrentTSO->stack+cap->r.rCurrentTSO->stack_size);
- fprintf(stderr, "\n\n");
+ debugBelch("\n\n");
);
IF_DEBUG(sanity,checkStackChunk(Sp, cap->r.rCurrentTSO->stack+cap->r.rCurrentTSO->stack_size));
if (info == (StgInfoTable *)&stg_ap_pppppp_info) {
n = 6; m = 6; goto do_apply;
}
- if (info == (StgInfoTable *)&stg_ap_ppppppp_info) {
- n = 7; m = 7; goto do_apply;
- }
goto do_return_unrecognised;
}
// Can't handle this return address; yield to scheduler
INTERP_TICK(it_retto_other);
IF_DEBUG(interpreter,
- fprintf(stderr, "returning to unknown frame -- yielding to sched\n");
+ debugBelch("returning to unknown frame -- yielding to sched\n");
printStackChunk(Sp,cap->r.rCurrentTSO->stack+cap->r.rCurrentTSO->stack_size);
);
Sp -= 2;
// Can't handle this return address; yield to scheduler
INTERP_TICK(it_retto_other);
IF_DEBUG(interpreter,
- fprintf(stderr, "returning to unknown frame -- yielding to sched\n");
+ debugBelch("returning to unknown frame -- yielding to sched\n");
printStackChunk(Sp,cap->r.rCurrentTSO->stack+cap->r.rCurrentTSO->stack_size);
);
RETURN_TO_SCHEDULER(ThreadRunGHC, ThreadYielding);
ASSERT(bciPtr <= instrs[0]);
IF_DEBUG(interpreter,
//if (do_print_stack) {
- //fprintf(stderr, "\n-- BEGIN stack\n");
+ //debugBelch("\n-- BEGIN stack\n");
//printStack(Sp,cap->r.rCurrentTSO->stack+cap->r.rCurrentTSO->stack_size,iSu);
- //fprintf(stderr, "-- END stack\n\n");
+ //debugBelch("-- END stack\n\n");
//}
- fprintf(stderr,"Sp = %p pc = %d ", Sp, bciPtr);
+ debugBelch("Sp = %p pc = %d ", Sp, bciPtr);
disInstr(bco,bciPtr);
if (0) { int i;
- fprintf(stderr,"\n");
+ debugBelch("\n");
for (i = 8; i >= 0; i--) {
- fprintf(stderr, "%d %p\n", i, (StgPtr)(*(Sp+i)));
+ debugBelch("%d %p\n", i, (StgPtr)(*(Sp+i)));
}
- fprintf(stderr,"\n");
+ debugBelch("\n");
}
//if (do_print_stack) checkStack(Sp,cap->r.rCurrentTSO->stack+cap->r.rCurrentTSO->stack_size,iSu);
);
case bci_PUSH_ALTS: {
int o_bco = BCO_NEXT;
- Sp[-2] = (W_)&stg_ctoi_ret_R1p_info;
+ Sp[-2] = (W_)&stg_ctoi_R1p_info;
Sp[-1] = BCO_PTR(o_bco);
Sp -= 2;
goto nextInsn;
case bci_PUSH_ALTS_P: {
int o_bco = BCO_NEXT;
- Sp[-2] = (W_)&stg_ctoi_ret_R1unpt_info;
+ Sp[-2] = (W_)&stg_ctoi_R1unpt_info;
Sp[-1] = BCO_PTR(o_bco);
Sp -= 2;
goto nextInsn;
case bci_PUSH_ALTS_N: {
int o_bco = BCO_NEXT;
- Sp[-2] = (W_)&stg_ctoi_ret_R1n_info;
+ Sp[-2] = (W_)&stg_ctoi_R1n_info;
Sp[-1] = BCO_PTR(o_bco);
Sp -= 2;
goto nextInsn;
case bci_PUSH_ALTS_F: {
int o_bco = BCO_NEXT;
- Sp[-2] = (W_)&stg_ctoi_ret_F1_info;
+ Sp[-2] = (W_)&stg_ctoi_F1_info;
Sp[-1] = BCO_PTR(o_bco);
Sp -= 2;
goto nextInsn;
case bci_PUSH_ALTS_D: {
int o_bco = BCO_NEXT;
- Sp[-2] = (W_)&stg_ctoi_ret_D1_info;
+ Sp[-2] = (W_)&stg_ctoi_D1_info;
Sp[-1] = BCO_PTR(o_bco);
Sp -= 2;
goto nextInsn;
case bci_PUSH_ALTS_L: {
int o_bco = BCO_NEXT;
- Sp[-2] = (W_)&stg_ctoi_ret_L1_info;
+ Sp[-2] = (W_)&stg_ctoi_L1_info;
Sp[-1] = BCO_PTR(o_bco);
Sp -= 2;
goto nextInsn;
case bci_PUSH_ALTS_V: {
int o_bco = BCO_NEXT;
- Sp[-2] = (W_)&stg_ctoi_ret_V_info;
+ Sp[-2] = (W_)&stg_ctoi_V_info;
Sp[-1] = BCO_PTR(o_bco);
Sp -= 2;
goto nextInsn;
case bci_PUSH_APPLY_PPPPPP:
Sp--; Sp[0] = (W_)&stg_ap_pppppp_info;
goto nextInsn;
- case bci_PUSH_APPLY_PPPPPPP:
- Sp--; Sp[0] = (W_)&stg_ap_ppppppp_info;
- goto nextInsn;
case bci_PUSH_UBX: {
int i;
ap->payload[i] = (StgClosure*)Sp[i+1];
Sp += n_payload+1;
IF_DEBUG(interpreter,
- fprintf(stderr,"\tBuilt ");
+ debugBelch("\tBuilt ");
printObj((StgClosure*)ap);
);
goto nextInsn;
Sp --;
Sp[0] = (W_)con;
IF_DEBUG(interpreter,
- fprintf(stderr,"\tBuilt ");
+ debugBelch("\tBuilt ");
printObj((StgClosure*)con);
);
goto nextInsn;
int discr = BCO_NEXT;
int failto = BCO_NEXT;
StgClosure* con = (StgClosure*)Sp[0];
- if (constrTag(con) >= discr) {
+ if (GET_TAG(con) >= discr) {
bciPtr = failto;
}
goto nextInsn;
int discr = BCO_NEXT;
int failto = BCO_NEXT;
StgClosure* con = (StgClosure*)Sp[0];
- if (constrTag(con) != discr) {
+ if (GET_TAG(con) != discr) {
bciPtr = failto;
}
goto nextInsn;
memcpy(arguments, Sp, sizeof(W_) * stk_offset);
#endif
+ // Restore the Haskell thread's current value of errno
+ errno = cap->r.rCurrentTSO->saved_errno;
+
// There are a bunch of non-ptr words on the stack (the
// ccall args, the ccall fun address and space for the
// result), which we need to cover with an info table
// on the stack frame to describe this chunk of stack.
//
Sp -= ret_dyn_size;
- ((StgRetDyn *)Sp)->liveness = ALL_NON_PTRS | N_NONPTRS(stk_offset);
+ ((StgRetDyn *)Sp)->liveness = NO_PTRS | N_NONPTRS(stk_offset);
((StgRetDyn *)Sp)->info = (StgInfoTable *)&stg_gc_gen_info;
SAVE_STACK_POINTERS;
- tok = suspendThread(&cap->r,rtsFalse);
+ tok = suspendThread(&cap->r);
#ifndef RTS_SUPPORTS_THREADS
// Careful:
#endif
// And restart the thread again, popping the RET_DYN frame.
- cap = (Capability *)((void *)resumeThread(tok,rtsFalse) - sizeof(StgFunTable));
+ cap = (Capability *)((void *)((unsigned char*)resumeThread(tok) - sizeof(StgFunTable)));
LOAD_STACK_POINTERS;
Sp += ret_dyn_size;
+ // Save the Haskell thread's current value of errno
+ cap->r.rCurrentTSO->saved_errno = errno;
+
#ifdef RTS_SUPPORTS_THREADS
// Threaded RTS:
// Copy the "arguments", which might include a return value,
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