1 /* -----------------------------------------------------------------------------
3 * (c) The GHC Team, 1998-2000
5 * Support for profiling
7 * ---------------------------------------------------------------------------*/
11 #include "PosixSource.h"
15 #include "Profiling.h"
17 #include "Proftimer.h"
21 #include "RetainerProfile.h"
22 #include "LdvProfile.h"
27 * Profiling allocation arena.
32 * Global variables used to assign unique IDs to cc's, ccs's, and
40 /* figures for the profiling report.
42 static ullong total_alloc;
43 static lnat total_prof_ticks;
45 /* Globals for opening the profiling log file(s)
47 static char *prof_filename; /* prof report file name = <program>.prof */
50 static char *hp_filename; /* heap profile (hp2ps style) log file */
53 /* The Current Cost Centre Stack (for attributing costs)
55 CostCentreStack *CCCS;
57 /* Linked lists to keep track of cc's and ccs's that haven't
58 * been declared in the log file yet
61 CostCentreStack *CCS_LIST;
64 * Built-in cost centres and cost-centre stacks:
66 * MAIN is the root of the cost-centre stack tree. If there are
67 * no _scc_s in the program, all costs will be attributed
70 * SYSTEM is the RTS in general (scheduler, etc.). All costs for
71 * RTS operations apart from garbage collection are attributed
74 * GC is the storage manager / garbage collector.
76 * OVERHEAD gets all costs generated by the profiling system
77 * itself. These are costs that would not be incurred
78 * during non-profiled execution of the program.
80 * SUBSUMED is the one-and-only CCS placed on top-level functions.
81 * It indicates that all costs are to be attributed to the
82 * enclosing cost centre stack. SUBSUMED never accumulates
83 * any costs. The is_caf flag is set on the subsumed cost
86 * DONT_CARE is a placeholder cost-centre we assign to static
87 * constructors. It should *never* accumulate any costs.
90 CC_DECLARE(CC_MAIN, "MAIN", "MAIN", CC_IS_BORING, );
91 CC_DECLARE(CC_SYSTEM, "SYSTEM", "MAIN", CC_IS_BORING, );
92 CC_DECLARE(CC_GC, "GC", "GC", CC_IS_BORING, );
93 CC_DECLARE(CC_OVERHEAD, "OVERHEAD_of", "PROFILING", CC_IS_CAF, );
94 CC_DECLARE(CC_SUBSUMED, "SUBSUMED", "MAIN", CC_IS_CAF, );
95 CC_DECLARE(CC_DONT_CARE, "DONT_CARE", "MAIN", CC_IS_BORING, );
97 CCS_DECLARE(CCS_MAIN, CC_MAIN, );
98 CCS_DECLARE(CCS_SYSTEM, CC_SYSTEM, );
99 CCS_DECLARE(CCS_GC, CC_GC, );
100 CCS_DECLARE(CCS_OVERHEAD, CC_OVERHEAD, );
101 CCS_DECLARE(CCS_SUBSUMED, CC_SUBSUMED, );
102 CCS_DECLARE(CCS_DONT_CARE, CC_DONT_CARE, );
105 * Uniques for the XML log-file format
110 #define HEAP_OBJ_UQ 4
111 #define TIME_UPD_UQ 5
112 #define HEAP_UPD_UQ 6
118 static CostCentreStack * ActualPush_ ( CostCentreStack *ccs, CostCentre *cc,
119 CostCentreStack *new_ccs );
120 static rtsBool ccs_to_ignore ( CostCentreStack *ccs );
121 static void count_ticks ( CostCentreStack *ccs );
122 static void inherit_costs ( CostCentreStack *ccs );
123 static void reportCCS ( CostCentreStack *ccs, nat indent );
124 static void DecCCS ( CostCentreStack *ccs );
125 static void DecBackEdge ( CostCentreStack *ccs,
126 CostCentreStack *oldccs );
127 static CostCentreStack * CheckLoop ( CostCentreStack *ccs, CostCentre *cc );
128 static CostCentreStack * pruneCCSTree ( CostCentreStack *ccs );
129 static CostCentreStack * ActualPush ( CostCentreStack *, CostCentre * );
130 static CostCentreStack * IsInIndexTable ( IndexTable *, CostCentre * );
131 static IndexTable * AddToIndexTable ( IndexTable *, CostCentreStack *,
132 CostCentre *, unsigned int );
133 static void ccsSetSelected ( CostCentreStack *ccs );
135 static void initTimeProfiling ( void );
136 static void initProfilingLogFile( void );
138 static void reportCCS_XML ( CostCentreStack *ccs );
140 /* -----------------------------------------------------------------------------
141 Initialise the profiling environment
142 -------------------------------------------------------------------------- */
145 initProfiling1 (void)
147 // initialise our arena
148 prof_arena = newArena();
150 /* for the benefit of allocate()... */
153 /* Initialize counters for IDs */
158 /* Initialize Declaration lists to NULL */
162 /* Register all the cost centres / stacks in the program
163 * CC_MAIN gets link = 0, all others have non-zero link.
165 REGISTER_CC(CC_MAIN);
166 REGISTER_CC(CC_SYSTEM);
168 REGISTER_CC(CC_OVERHEAD);
169 REGISTER_CC(CC_SUBSUMED);
170 REGISTER_CC(CC_DONT_CARE);
171 REGISTER_CCS(CCS_MAIN);
172 REGISTER_CCS(CCS_SYSTEM);
173 REGISTER_CCS(CCS_GC);
174 REGISTER_CCS(CCS_OVERHEAD);
175 REGISTER_CCS(CCS_SUBSUMED);
176 REGISTER_CCS(CCS_DONT_CARE);
180 /* cost centres are registered by the per-module
181 * initialisation code now...
186 initProfiling2 (void)
188 CostCentreStack *ccs, *next;
192 /* Set up the log file, and dump the header and cost centre
193 * information into it. */
194 initProfilingLogFile();
196 /* find all the "special" cost centre stacks, and make them children
199 ASSERT(CCS_MAIN->prevStack == 0);
200 CCS_MAIN->root = CC_MAIN;
201 ccsSetSelected(CCS_MAIN);
204 for (ccs = CCS_LIST; ccs != CCS_MAIN; ) {
205 next = ccs->prevStack;
207 ActualPush_(CCS_MAIN,ccs->cc,ccs);
212 if (RtsFlags.CcFlags.doCostCentres) {
216 if (RtsFlags.ProfFlags.doHeapProfile) {
221 // Decide whether closures with this CCS should contribute to the heap
224 ccsSetSelected( CostCentreStack *ccs )
226 if (RtsFlags.ProfFlags.modSelector) {
227 if (! strMatchesSelector( ccs->cc->module,
228 RtsFlags.ProfFlags.modSelector ) ) {
233 if (RtsFlags.ProfFlags.ccSelector) {
234 if (! strMatchesSelector( ccs->cc->label,
235 RtsFlags.ProfFlags.ccSelector ) ) {
240 if (RtsFlags.ProfFlags.ccsSelector) {
242 for (c = ccs; c != NULL; c = c->prevStack) {
243 if ( strMatchesSelector( c->cc->label,
244 RtsFlags.ProfFlags.ccsSelector )) {
260 initProfilingLogFile(void)
262 /* Initialise the log file name */
263 prof_filename = arenaAlloc(prof_arena, strlen(prog_name) + 6);
264 sprintf(prof_filename, "%s.prof", prog_name);
266 /* open the log file */
267 if ((prof_file = fopen(prof_filename, "w")) == NULL) {
268 debugBelch("Can't open profiling report file %s\n", prof_filename);
269 RtsFlags.CcFlags.doCostCentres = 0;
270 // The following line was added by Sung; retainer/LDV profiling may need
271 // two output files, i.e., <program>.prof/hp.
272 if (RtsFlags.ProfFlags.doHeapProfile == HEAP_BY_RETAINER)
273 RtsFlags.ProfFlags.doHeapProfile = 0;
277 if (RtsFlags.CcFlags.doCostCentres == COST_CENTRES_XML) {
278 /* dump the time, and the profiling interval */
279 fprintf(prof_file, "\"%s\"\n", time_str());
280 fprintf(prof_file, "\"%d ms\"\n", TICK_MILLISECS);
282 /* declare all the cost centres */
285 for (cc = CC_LIST; cc != NULL; cc = cc->link) {
286 fprintf(prof_file, "%d %d \"%s\" \"%s\"\n",
287 CC_UQ, cc->ccID, cc->label, cc->module);
292 if (RtsFlags.ProfFlags.doHeapProfile) {
293 /* Initialise the log file name */
294 hp_filename = arenaAlloc(prof_arena, strlen(prog_name) + 6);
295 sprintf(hp_filename, "%s.hp", prog_name);
297 /* open the log file */
298 if ((hp_file = fopen(hp_filename, "w")) == NULL) {
299 debugBelch("Can't open profiling report file %s\n",
301 RtsFlags.ProfFlags.doHeapProfile = 0;
308 initTimeProfiling(void)
315 endProfiling ( void )
317 if (RtsFlags.CcFlags.doCostCentres) {
320 if (RtsFlags.ProfFlags.doHeapProfile) {
325 /* -----------------------------------------------------------------------------
326 Set cost centre stack when entering a function.
327 -------------------------------------------------------------------------- */
328 rtsBool entering_PAP;
331 EnterFunCCS ( CostCentreStack *ccsfn )
333 /* PAP_entry has already set CCCS for us */
335 entering_PAP = rtsFalse;
339 if (ccsfn->root->is_caf == CC_IS_CAF) {
340 CCCS = AppendCCS(CCCS,ccsfn);
346 /* -----------------------------------------------------------------------------
347 Cost-centre stack manipulation
348 -------------------------------------------------------------------------- */
351 CostCentreStack * _PushCostCentre ( CostCentreStack *ccs, CostCentre *cc );
353 PushCostCentre ( CostCentreStack *ccs, CostCentre *cc )
354 #define PushCostCentre _PushCostCentre
357 debugBelch("Pushing %s on ", cc->label);
360 return PushCostCentre(ccs,cc);
365 PushCostCentre ( CostCentreStack *ccs, CostCentre *cc )
367 CostCentreStack *temp_ccs;
369 if (ccs == EMPTY_STACK)
370 return ActualPush(ccs,cc);
375 /* check if we've already memoized this stack */
376 temp_ccs = IsInIndexTable(ccs->indexTable,cc);
378 if (temp_ccs != EMPTY_STACK)
381 temp_ccs = CheckLoop(ccs,cc);
382 if (temp_ccs != NULL) {
383 /* we have recursed to an older CCS. Mark this in
384 * the index table, and emit a "back edge" into the
387 ccs->indexTable = AddToIndexTable(ccs->indexTable,temp_ccs,cc,1);
388 DecBackEdge(temp_ccs,ccs);
391 return ActualPush(ccs,cc);
398 static CostCentreStack *
399 CheckLoop ( CostCentreStack *ccs, CostCentre *cc )
401 while (ccs != EMPTY_STACK) {
404 ccs = ccs->prevStack;
409 /* Append ccs1 to ccs2 (ignoring any CAF cost centre at the root of ccs1 */
412 CostCentreStack *_AppendCCS ( CostCentreStack *ccs1, CostCentreStack *ccs2 );
414 AppendCCS ( CostCentreStack *ccs1, CostCentreStack *ccs2 )
415 #define AppendCCS _AppendCCS
419 debugBelch("Appending ");
424 return AppendCCS(ccs1,ccs2);
429 AppendCCS ( CostCentreStack *ccs1, CostCentreStack *ccs2 )
431 CostCentreStack *ccs = NULL;
437 if (ccs2->cc->is_caf == CC_IS_CAF) {
441 if (ccs2->prevStack != NULL) {
442 ccs = AppendCCS(ccs1, ccs2->prevStack);
445 return PushCostCentre(ccs,ccs2->cc);
448 static CostCentreStack *
449 ActualPush ( CostCentreStack *ccs, CostCentre *cc )
451 CostCentreStack *new_ccs;
453 /* allocate space for a new CostCentreStack */
454 new_ccs = (CostCentreStack *) arenaAlloc(prof_arena, sizeof(CostCentreStack));
456 return ActualPush_(ccs, cc, new_ccs);
459 static CostCentreStack *
460 ActualPush_ ( CostCentreStack *ccs, CostCentre *cc, CostCentreStack *new_ccs )
462 /* assign values to each member of the structure */
463 new_ccs->ccsID = CCS_ID++;
465 new_ccs->prevStack = ccs;
467 new_ccs->indexTable = EMPTY_TABLE;
469 /* Initialise the various _scc_ counters to zero
471 new_ccs->scc_count = 0;
473 /* Initialize all other stats here. There should be a quick way
474 * that's easily used elsewhere too
476 new_ccs->time_ticks = 0;
477 new_ccs->mem_alloc = 0;
478 new_ccs->inherited_ticks = 0;
479 new_ccs->inherited_alloc = 0;
481 new_ccs->root = ccs->root;
483 // Set the selected field.
484 ccsSetSelected(new_ccs);
486 /* update the memoization table for the parent stack */
487 if (ccs != EMPTY_STACK)
488 ccs->indexTable = AddToIndexTable(ccs->indexTable, new_ccs, cc,
489 0/*not a back edge*/);
491 /* make sure this CC is declared at the next heap/time sample */
494 /* return a pointer to the new stack */
499 static CostCentreStack *
500 IsInIndexTable(IndexTable *it, CostCentre *cc)
502 while (it!=EMPTY_TABLE)
510 /* otherwise we never found it so return EMPTY_TABLE */
516 AddToIndexTable(IndexTable *it, CostCentreStack *new_ccs,
517 CostCentre *cc, unsigned int back_edge)
521 new_it = arenaAlloc(prof_arena, sizeof(IndexTable));
524 new_it->ccs = new_ccs;
526 new_it->back_edge = back_edge;
532 DecCCS(CostCentreStack *ccs)
534 if (prof_file && RtsFlags.CcFlags.doCostCentres == COST_CENTRES_XML) {
535 if (ccs->prevStack == EMPTY_STACK)
536 fprintf(prof_file, "%d %d 1 %d\n", CCS_UQ,
537 ccs->ccsID, ccs->cc->ccID);
539 fprintf(prof_file, "%d %d 2 %d %d\n", CCS_UQ,
540 ccs->ccsID, ccs->cc->ccID, ccs->prevStack->ccsID);
545 DecBackEdge( CostCentreStack *ccs, CostCentreStack *oldccs )
547 if (prof_file && RtsFlags.CcFlags.doCostCentres == COST_CENTRES_XML) {
548 if (ccs->prevStack == EMPTY_STACK)
549 fprintf(prof_file, "%d %d 1 %d\n", CCS_UQ,
550 ccs->ccsID, ccs->cc->ccID);
552 fprintf(prof_file, "%d %d 2 %d %d\n", CCS_UQ,
553 ccs->ccsID, ccs->cc->ccID, oldccs->ccsID);
557 /* -----------------------------------------------------------------------------
558 Generating a time & allocation profiling report.
559 -------------------------------------------------------------------------- */
561 /* We omit certain system-related CCs and CCSs from the default
562 * reports, so as not to cause confusion.
565 cc_to_ignore (CostCentre *cc)
567 if ( cc == CC_OVERHEAD
568 || cc == CC_DONT_CARE
570 || cc == CC_SYSTEM) {
578 ccs_to_ignore (CostCentreStack *ccs)
580 if ( ccs == CCS_OVERHEAD
581 || ccs == CCS_DONT_CARE
583 || ccs == CCS_SYSTEM) {
590 /* -----------------------------------------------------------------------------
591 Generating the aggregated per-cost-centre time/alloc report.
592 -------------------------------------------------------------------------- */
594 static CostCentre *sorted_cc_list;
597 aggregate_cc_costs( CostCentreStack *ccs )
601 ccs->cc->mem_alloc += ccs->mem_alloc;
602 ccs->cc->time_ticks += ccs->time_ticks;
604 for (i = ccs->indexTable; i != 0; i = i->next) {
606 aggregate_cc_costs(i->ccs);
612 insert_cc_in_sorted_list( CostCentre *new_cc )
614 CostCentre **prev, *cc;
616 prev = &sorted_cc_list;
617 for (cc = sorted_cc_list; cc != NULL; cc = cc->link) {
618 if (new_cc->time_ticks > cc->time_ticks) {
631 report_per_cc_costs( void )
633 CostCentre *cc, *next;
635 aggregate_cc_costs(CCS_MAIN);
636 sorted_cc_list = NULL;
638 for (cc = CC_LIST; cc != NULL; cc = next) {
640 if (cc->time_ticks > total_prof_ticks/100
641 || cc->mem_alloc > total_alloc/100
642 || RtsFlags.CcFlags.doCostCentres >= COST_CENTRES_ALL) {
643 insert_cc_in_sorted_list(cc);
647 fprintf(prof_file, "%-30s %-20s", "COST CENTRE", "MODULE");
648 fprintf(prof_file, "%6s %6s", "%time", "%alloc");
649 if (RtsFlags.CcFlags.doCostCentres >= COST_CENTRES_VERBOSE) {
650 fprintf(prof_file, " %5s %9s", "ticks", "bytes");
652 fprintf(prof_file, "\n\n");
654 for (cc = sorted_cc_list; cc != NULL; cc = cc->link) {
655 if (cc_to_ignore(cc)) {
658 fprintf(prof_file, "%-30s %-20s", cc->label, cc->module);
659 fprintf(prof_file, "%6.1f %6.1f",
660 total_prof_ticks == 0 ? 0.0 : (cc->time_ticks / (StgFloat) total_prof_ticks * 100),
661 total_alloc == 0 ? 0.0 : (cc->mem_alloc / (StgFloat)
665 if (RtsFlags.CcFlags.doCostCentres >= COST_CENTRES_VERBOSE) {
666 fprintf(prof_file, " %5llu %9llu", (StgWord64)(cc->time_ticks), cc->mem_alloc);
668 fprintf(prof_file, "\n");
671 fprintf(prof_file,"\n\n");
674 /* -----------------------------------------------------------------------------
675 Generate the cost-centre-stack time/alloc report
676 -------------------------------------------------------------------------- */
679 fprint_header( void )
681 fprintf(prof_file, "%-24s %-10s individual inherited\n", "", "");
683 fprintf(prof_file, "%-24s %-50s", "COST CENTRE", "MODULE");
684 fprintf(prof_file, "%6s %10s %5s %5s %5s %5s", "no.", "entries", "%time", "%alloc", "%time", "%alloc");
686 if (RtsFlags.CcFlags.doCostCentres >= COST_CENTRES_VERBOSE) {
687 fprintf(prof_file, " %5s %9s", "ticks", "bytes");
688 #if defined(PROFILING_DETAIL_COUNTS)
689 fprintf(prof_file, " %8s %8s %8s %8s %8s %8s %8s",
690 "closures", "thunks", "funcs", "PAPs", "subfuns", "subcafs", "cafssub");
694 fprintf(prof_file, "\n\n");
698 reportCCSProfiling( void )
701 char temp[128]; /* sigh: magic constant */
705 total_prof_ticks = 0;
707 count_ticks(CCS_MAIN);
709 switch (RtsFlags.CcFlags.doCostCentres) {
712 case COST_CENTRES_XML:
719 fprintf(prof_file, "\t%s Time and Allocation Profiling Report (%s)\n",
720 time_str(), "Final");
722 fprintf(prof_file, "\n\t ");
723 fprintf(prof_file, " %s", prog_name);
724 fprintf(prof_file, " +RTS");
725 for (count = 0; rts_argv[count]; count++)
726 fprintf(prof_file, " %s", rts_argv[count]);
727 fprintf(prof_file, " -RTS");
728 for (count = 1; prog_argv[count]; count++)
729 fprintf(prof_file, " %s", prog_argv[count]);
730 fprintf(prof_file, "\n\n");
732 fprintf(prof_file, "\ttotal time = %11.2f secs (%lu ticks @ %d ms)\n",
733 total_prof_ticks / (StgFloat) TICK_FREQUENCY,
734 total_prof_ticks, TICK_MILLISECS);
736 fprintf(prof_file, "\ttotal alloc = %11s bytes",
737 ullong_format_string(total_alloc * sizeof(W_),
738 temp, rtsTrue/*commas*/));
740 #if defined(PROFILING_DETAIL_COUNTS)
741 fprintf(prof_file, " (%lu closures)", total_allocs);
743 fprintf(prof_file, " (excludes profiling overheads)\n\n");
745 report_per_cc_costs();
747 inherit_costs(CCS_MAIN);
750 reportCCS(pruneCCSTree(CCS_MAIN), 0);
754 reportCCS(CostCentreStack *ccs, nat indent)
761 /* Only print cost centres with non 0 data ! */
763 if ( RtsFlags.CcFlags.doCostCentres >= COST_CENTRES_ALL ||
764 ! ccs_to_ignore(ccs))
765 /* force printing of *all* cost centres if -P -P */
768 fprintf(prof_file, "%-*s%-*s %-50s",
769 indent, "", 24-indent, cc->label, cc->module);
771 fprintf(prof_file, "%6d %11.0f %5.1f %5.1f %5.1f %5.1f",
772 ccs->ccsID, (double) ccs->scc_count,
773 total_prof_ticks == 0 ? 0.0 : ((double)ccs->time_ticks / (double)total_prof_ticks * 100.0),
774 total_alloc == 0 ? 0.0 : ((double)ccs->mem_alloc / (double)total_alloc * 100.0),
775 total_prof_ticks == 0 ? 0.0 : ((double)ccs->inherited_ticks / (double)total_prof_ticks * 100.0),
776 total_alloc == 0 ? 0.0 : ((double)ccs->inherited_alloc / (double)total_alloc * 100.0)
779 if (RtsFlags.CcFlags.doCostCentres >= COST_CENTRES_VERBOSE) {
780 fprintf(prof_file, " %5llu %9llu", (StgWord64)(ccs->time_ticks), ccs->mem_alloc*sizeof(W_));
781 #if defined(PROFILING_DETAIL_COUNTS)
782 fprintf(prof_file, " %8ld %8ld %8ld %8ld %8ld %8ld %8ld",
783 ccs->mem_allocs, ccs->thunk_count,
784 ccs->function_count, ccs->pap_count,
785 ccs->subsumed_fun_count, ccs->subsumed_caf_count,
786 ccs->caffun_subsumed);
789 fprintf(prof_file, "\n");
792 for (i = ccs->indexTable; i != 0; i = i->next) {
794 reportCCS(i->ccs, indent+1);
800 /* Traverse the cost centre stack tree and accumulate
804 count_ticks(CostCentreStack *ccs)
808 if (!ccs_to_ignore(ccs)) {
809 total_alloc += ccs->mem_alloc;
810 total_prof_ticks += ccs->time_ticks;
812 for (i = ccs->indexTable; i != NULL; i = i->next)
818 /* Traverse the cost centre stack tree and inherit ticks & allocs.
821 inherit_costs(CostCentreStack *ccs)
825 if (ccs_to_ignore(ccs)) { return; }
827 ccs->inherited_ticks += ccs->time_ticks;
828 ccs->inherited_alloc += ccs->mem_alloc;
830 for (i = ccs->indexTable; i != NULL; i = i->next)
832 inherit_costs(i->ccs);
833 ccs->inherited_ticks += i->ccs->inherited_ticks;
834 ccs->inherited_alloc += i->ccs->inherited_alloc;
840 static CostCentreStack *
841 pruneCCSTree( CostCentreStack *ccs )
843 CostCentreStack *ccs1;
844 IndexTable *i, **prev;
846 prev = &ccs->indexTable;
847 for (i = ccs->indexTable; i != 0; i = i->next) {
848 if (i->back_edge) { continue; }
850 ccs1 = pruneCCSTree(i->ccs);
858 if ( (RtsFlags.CcFlags.doCostCentres >= COST_CENTRES_ALL
859 /* force printing of *all* cost centres if -P -P */ )
861 || ( ccs->indexTable != 0 )
862 || ( ccs->scc_count || ccs->time_ticks || ccs->mem_alloc )
870 /* -----------------------------------------------------------------------------
871 Generate the XML time/allocation profile
872 -------------------------------------------------------------------------- */
875 gen_XML_logfile( void )
877 fprintf(prof_file, "%d %lu", TIME_UPD_UQ, total_prof_ticks);
879 reportCCS_XML(pruneCCSTree(CCS_MAIN));
881 fprintf(prof_file, " 0\n");
887 reportCCS_XML(CostCentreStack *ccs)
892 if (ccs_to_ignore(ccs)) { return; }
896 fprintf(prof_file, " 1 %d %llu %llu %llu",
897 ccs->ccsID, ccs->scc_count, (StgWord64)(ccs->time_ticks), ccs->mem_alloc);
899 for (i = ccs->indexTable; i != 0; i = i->next) {
901 reportCCS_XML(i->ccs);
907 fprintCCS( FILE *f, CostCentreStack *ccs )
910 for (; ccs && ccs != CCS_MAIN; ccs = ccs->prevStack ) {
911 fprintf(f,"%s.%s", ccs->cc->module, ccs->cc->label);
912 if (ccs->prevStack && ccs->prevStack != CCS_MAIN) {
919 /* For calling from .cmm code, where we can't reliably refer to stderr */
921 fprintCCS_stderr( CostCentreStack *ccs )
923 fprintCCS(stderr, ccs);
928 debugCCS( CostCentreStack *ccs )
931 for (; ccs && ccs != CCS_MAIN; ccs = ccs->prevStack ) {
932 debugBelch("%s.%s", ccs->cc->module, ccs->cc->label);
933 if (ccs->prevStack && ccs->prevStack != CCS_MAIN) {
941 #endif /* PROFILING */