1 /* -----------------------------------------------------------------------------
2 * $Id: RtsFlags.c,v 1.52 2001/11/22 14:25:12 simonmar Exp $
4 * (c) The AQUA Project, Glasgow University, 1994-1997
5 * (c) The GHC Team, 1998-1999
7 * Functions for parsing the argument list.
9 * ---------------------------------------------------------------------------*/
14 //* Static function decls::
15 //* Command-line option parsing routines::
16 //* GranSim specific options::
21 //@node Includes, Constants
22 //@subsection Includes
24 #include "PosixSource.h"
28 #include "BlockAlloc.h"
29 #include "Itimer.h" /* CS_MIN_MILLISECS */
30 #include "Profiling.h"
32 #if defined(PROFILING)
40 extern struct RTS_FLAGS RtsFlags;
43 * Split argument lists
45 int prog_argc; /* an "int" so as to match normal "argc" */
46 char **prog_argv = NULL;
47 int rts_argc; /* ditto */
48 char *rts_argv[MAX_RTS_ARGS];
50 //@node Constants, Static function decls, Includes
51 //@subsection Constants
54 * constants, used later
59 char *debug_opts_strs[] = {
60 "DEBUG (-D1): scheduler\n",
61 "DEBUG (-D2): evaluator\n",
62 "DEBUG (-D4): codegen\n",
63 "DEBUG (-D8): weak\n",
64 "DEBUG (-D16): gccafs\n",
66 "DEBUG (-D64): block\n",
67 "DEBUG (-D128): sanity\n",
68 "DEBUG (-D256): stable\n",
69 "DEBUG (-D512): prof\n",
70 "DEBUG (-D1024): gran\n",
71 "DEBUG (-D2048): par\n",
72 "DEBUG (-D4096): linker\n"
75 char *debug_opts_prefix[] = {
93 char *gran_debug_opts_strs[] = {
94 "DEBUG (-bDe, -bD1): event_trace; printing event trace.\n",
95 "DEBUG (-bDE, -bD2): event_stats; printing event statistics.\n",
96 "DEBUG (-bDb, -bD4): bq; check blocking queues\n",
97 "DEBUG (-bDG, -bD8): pack; routines for (un-)packing graph structures.\n",
98 "DEBUG (-bDq, -bD16): checkSparkQ; check consistency of the spark queues.\n",
99 "DEBUG (-bDf, -bD32): thunkStealing; print forwarding of fetches.\n",
100 "DEBUG (-bDr, -bD64): randomSteal; stealing sparks/threads from random PEs.\n",
101 "DEBUG (-bDF, -bD128): findWork; searching spark-pools (local & remote), thread queues for work.\n",
102 "DEBUG (-bDu, -bD256): unused; currently unused flag.\n",
103 "DEBUG (-bDS, -bD512): pri; priority sparking or scheduling.\n",
104 "DEBUG (-bD:, -bD1024): checkLight; check GranSim-Light setup.\n",
105 "DEBUG (-bDo, -bD2048): sortedQ; check whether spark/thread queues are sorted.\n",
106 "DEBUG (-bDz, -bD4096): blockOnFetch; check for blocked on fetch.\n",
107 "DEBUG (-bDP, -bD8192): packBuffer; routines handling pack buffer (GranSim internal!).\n",
108 "DEBUG (-bDt, -bD16384): blockOnFetch_sanity; check for TSO asleep on fetch.\n",
111 /* one character codes for the available debug options */
112 char gran_debug_opts_flags[] = {
113 'e', 'E', 'b', 'G', 'q', 'f', 'r', 'F', 'u', 'S', ':', 'o', 'z', 'P', 't'
116 /* prefix strings printed with the debug messages of the corresponding type */
117 char *gran_debug_opts_prefix[] = {
118 "", /* event_trace */
119 "", /* event_stats */
122 "^^", /* checkSparkQ */
123 "==", /* thunkStealing */
124 "^^", /* randomSteal */
128 "::", /* checkLight */
130 "", /* blockOnFetch */
132 "" /* blockOnFetch_sanity */
137 char *par_debug_opts_strs[] = {
138 "DEBUG (-qDv, -qD1): verbose; be generally verbose with parallel related stuff.\n",
139 "DEBUG (-qDq, -qD2): bq; print blocking queues.\n",
140 "DEBUG (-qDs, -qD4): schedule; scheduling of parallel threads.\n",
141 "DEBUG (-qDe, -qD8): free; free messages.\n",
142 "DEBUG (-qDr, -qD16): resume; resume messages.\n",
143 "DEBUG (-qDw, -qD32): weight; print weights and distrib GC stuff.\n",
144 "DEBUG (-qDF, -qD64): fetch; fetch messages.\n",
145 // "DEBUG (-qDa, -qD128): ack; ack messages.\n",
146 "DEBUG (-qDf, -qD128): fish; fish messages.\n",
147 //"DEBUG (-qDo, -qD512): forward; forwarding messages to other PEs.\n",
148 "DEBUG (-qDl, -qD256): tables; print internal LAGA etc tables.\n",
149 "DEBUG (-qDo, -qD512): packet; packets and graph structures when packing.\n",
150 "DEBUG (-qDp, -qD1024): pack; packing and unpacking graphs.\n",
151 "DEBUG (-qDz, -qD2048): paranoia; ridiculously detailed output (excellent for filling a partition).\n"
154 /* one character codes for the available debug options */
155 char par_debug_opts_flags[] = {
156 'v', 'q', 's', 'e', 'r', 'w', 'F', 'f', 'l', 'o', 'p', 'z'
159 /* prefix strings printed with the debug messages of the corresponding type */
160 char *par_debug_opts_prefix[] = {
178 //@node Static function decls, Command-line option parsing routines, Constants
179 //@subsection Static function decls
181 /* -----------------------------------------------------------------------------
182 Static function decls
183 -------------------------------------------------------------------------- */
185 static FILE * /* return NULL on error */
188 int argc, char *argv[],
189 int rts_argc, char *rts_argv[],
190 const char *FILENAME_FMT);
192 static I_ decode(const char *s);
193 static void bad_option(const char *s);
196 static void enable_GranSimLight(void);
197 static void process_gran_option(int arg, int *rts_argc, char *rts_argv[], rtsBool *error);
198 static void set_GranSim_debug_options(nat n);
199 static void help_GranSim_debug_options(nat n);
201 static void process_par_option(int arg, int *rts_argc, char *rts_argv[], rtsBool *error);
202 static void set_par_debug_options(nat n);
203 static void help_par_debug_options(nat n);
206 static void set_debug_options(nat n);
207 static void help_debug_options(nat n);
210 //@node Command-line option parsing routines, GranSim specific options, Static function decls
211 //@subsection Command-line option parsing routines
213 /* -----------------------------------------------------------------------------
214 * Command-line option parsing routines.
215 * ---------------------------------------------------------------------------*/
217 void initRtsFlagsDefaults(void)
219 RtsFlags.GcFlags.statsFile = NULL;
220 RtsFlags.GcFlags.giveStats = NO_GC_STATS;
222 RtsFlags.GcFlags.maxStkSize = (1024 * 1024) / sizeof(W_);
223 RtsFlags.GcFlags.initialStkSize = 1024 / sizeof(W_);
225 RtsFlags.GcFlags.minAllocAreaSize = (256 * 1024) / BLOCK_SIZE;
226 RtsFlags.GcFlags.minOldGenSize = (1024 * 1024) / BLOCK_SIZE;
227 RtsFlags.GcFlags.maxHeapSize = 0; /* off by default */
228 RtsFlags.GcFlags.heapSizeSuggestion = 0; /* none */
229 RtsFlags.GcFlags.pcFreeHeap = 3; /* 3% */
230 RtsFlags.GcFlags.oldGenFactor = 2;
232 /* A hack currently needed for GUM -- HWL */
233 RtsFlags.GcFlags.generations = 1;
234 RtsFlags.GcFlags.steps = 2;
235 RtsFlags.GcFlags.squeezeUpdFrames = rtsFalse;
237 RtsFlags.GcFlags.generations = 2;
238 RtsFlags.GcFlags.steps = 2;
239 RtsFlags.GcFlags.squeezeUpdFrames = rtsTrue;
241 RtsFlags.GcFlags.compact = rtsFalse;
242 RtsFlags.GcFlags.compactThreshold = 30.0;
243 #ifdef RTS_GTK_FRONTPANEL
244 RtsFlags.GcFlags.frontpanel = rtsFalse;
247 #if defined(PROFILING) || defined(PAR)
248 RtsFlags.CcFlags.doCostCentres = 0;
249 #endif /* PROFILING or PAR */
252 RtsFlags.ProfFlags.doHeapProfile = rtsFalse;
253 RtsFlags.ProfFlags.profileInterval = 20;
254 RtsFlags.ProfFlags.showCCSOnException = rtsFalse;
255 RtsFlags.ProfFlags.modSelector = NULL;
256 RtsFlags.ProfFlags.descrSelector = NULL;
257 RtsFlags.ProfFlags.typeSelector = NULL;
258 RtsFlags.ProfFlags.ccSelector = NULL;
261 RtsFlags.ProfFlags.doHeapProfile = rtsFalse;
264 RtsFlags.ConcFlags.ctxtSwitchTime = CS_MIN_MILLISECS; /* In milliseconds */
267 RtsFlags.ParFlags.nNodes = 1;
271 RtsFlags.ParFlags.ParStats.Full = rtsFalse;
272 RtsFlags.ParFlags.ParStats.Suppressed = rtsFalse;
273 RtsFlags.ParFlags.ParStats.Binary = rtsFalse;
274 RtsFlags.ParFlags.ParStats.Sparks = rtsFalse;
275 RtsFlags.ParFlags.ParStats.Heap = rtsFalse;
276 RtsFlags.ParFlags.ParStats.NewLogfile = rtsFalse;
277 RtsFlags.ParFlags.ParStats.Global = rtsFalse;
279 RtsFlags.ParFlags.outputDisabled = rtsFalse;
281 RtsFlags.ParFlags.doFairScheduling = rtsTrue; /* fair sched by def */
283 RtsFlags.ParFlags.doFairScheduling = rtsFalse; /* unfair sched by def */
285 RtsFlags.ParFlags.packBufferSize = 1024;
286 RtsFlags.ParFlags.thunksToPack = 1; /* 0 ... infinity; */
287 RtsFlags.ParFlags.globalising = 1; /* 0 ... everything */
288 RtsFlags.ParFlags.maxThreads = 1024;
289 RtsFlags.ParFlags.maxFishes = MAX_FISHES;
290 RtsFlags.ParFlags.fishDelay = FISH_DELAY;
293 #if defined(PAR) || defined(SMP)
294 RtsFlags.ParFlags.maxLocalSparks = 4096;
295 #endif /* PAR || SMP */
298 /* ToDo: check defaults for GranSim and GUM */
299 RtsFlags.GcFlags.maxStkSize = (1024 * 1024) / sizeof(W_);
300 RtsFlags.GcFlags.initialStkSize = 1024 / sizeof(W_);
302 RtsFlags.GranFlags.maxThreads = 65536; // refers to mandatory threads
303 RtsFlags.GranFlags.GranSimStats.Full = rtsFalse;
304 RtsFlags.GranFlags.GranSimStats.Suppressed = rtsFalse;
305 RtsFlags.GranFlags.GranSimStats.Binary = rtsFalse;
306 RtsFlags.GranFlags.GranSimStats.Sparks = rtsFalse;
307 RtsFlags.GranFlags.GranSimStats.Heap = rtsFalse;
308 RtsFlags.GranFlags.GranSimStats.NewLogfile = rtsFalse;
309 RtsFlags.GranFlags.GranSimStats.Global = rtsFalse;
311 RtsFlags.GranFlags.packBufferSize = 1024;
312 RtsFlags.GranFlags.packBufferSize_internal = GRANSIM_DEFAULT_PACK_BUFFER_SIZE;
314 RtsFlags.GranFlags.proc = MAX_PROC;
315 RtsFlags.GranFlags.Fishing = rtsFalse;
316 RtsFlags.GranFlags.maxFishes = MAX_FISHES;
317 RtsFlags.GranFlags.time_slice = GRAN_TIME_SLICE;
318 RtsFlags.GranFlags.Light = rtsFalse;
320 RtsFlags.GranFlags.Costs.latency = LATENCY;
321 RtsFlags.GranFlags.Costs.additional_latency = ADDITIONAL_LATENCY;
322 RtsFlags.GranFlags.Costs.fetchtime = FETCHTIME;
323 RtsFlags.GranFlags.Costs.lunblocktime = LOCALUNBLOCKTIME;
324 RtsFlags.GranFlags.Costs.gunblocktime = GLOBALUNBLOCKTIME;
325 RtsFlags.GranFlags.Costs.mpacktime = MSGPACKTIME;
326 RtsFlags.GranFlags.Costs.munpacktime = MSGUNPACKTIME;
327 RtsFlags.GranFlags.Costs.mtidytime = MSGTIDYTIME;
329 RtsFlags.GranFlags.Costs.threadcreatetime = THREADCREATETIME;
330 RtsFlags.GranFlags.Costs.threadqueuetime = THREADQUEUETIME;
331 RtsFlags.GranFlags.Costs.threaddescheduletime = THREADDESCHEDULETIME;
332 RtsFlags.GranFlags.Costs.threadscheduletime = THREADSCHEDULETIME;
333 RtsFlags.GranFlags.Costs.threadcontextswitchtime = THREADCONTEXTSWITCHTIME;
335 RtsFlags.GranFlags.Costs.arith_cost = ARITH_COST;
336 RtsFlags.GranFlags.Costs.branch_cost = BRANCH_COST;
337 RtsFlags.GranFlags.Costs.load_cost = LOAD_COST;
338 RtsFlags.GranFlags.Costs.store_cost = STORE_COST;
339 RtsFlags.GranFlags.Costs.float_cost = FLOAT_COST;
341 RtsFlags.GranFlags.Costs.heapalloc_cost = HEAPALLOC_COST;
343 RtsFlags.GranFlags.Costs.pri_spark_overhead = PRI_SPARK_OVERHEAD;
344 RtsFlags.GranFlags.Costs.pri_sched_overhead = PRI_SCHED_OVERHEAD;
346 RtsFlags.GranFlags.DoFairSchedule = rtsFalse;
347 RtsFlags.GranFlags.DoAsyncFetch = rtsFalse;
348 RtsFlags.GranFlags.DoStealThreadsFirst = rtsFalse;
349 RtsFlags.GranFlags.DoAlwaysCreateThreads = rtsFalse;
350 RtsFlags.GranFlags.DoBulkFetching = rtsFalse;
351 RtsFlags.GranFlags.DoThreadMigration = rtsFalse;
352 RtsFlags.GranFlags.FetchStrategy = 2;
353 RtsFlags.GranFlags.PreferSparksOfLocalNodes = rtsFalse;
354 RtsFlags.GranFlags.DoPrioritySparking = rtsFalse;
355 RtsFlags.GranFlags.DoPriorityScheduling = rtsFalse;
356 RtsFlags.GranFlags.SparkPriority = 0;
357 RtsFlags.GranFlags.SparkPriority2 = 0;
358 RtsFlags.GranFlags.RandomPriorities = rtsFalse;
359 RtsFlags.GranFlags.InversePriorities = rtsFalse;
360 RtsFlags.GranFlags.IgnorePriorities = rtsFalse;
361 RtsFlags.GranFlags.ThunksToPack = 0;
362 RtsFlags.GranFlags.RandomSteal = rtsTrue;
366 RtsFlags.TickyFlags.showTickyStats = rtsFalse;
367 RtsFlags.TickyFlags.tickyFile = NULL;
374 "Usage: <prog> <args> [+RTS <rtsopts> | -RTS <args>] ... --RTS <args>",
376 " +RTS Indicates run time system options follow",
377 " -RTS Indicates program arguments follow",
378 " --RTS Indicates that ALL subsequent arguments will be given to the",
379 " program (including any of these RTS flags)",
381 "The following run time system options are available:",
383 " -? Prints this message and exits; the program is not executed",
385 " -K<size> Sets the maximum stack size (default 1M) Egs: -K32k -K512k",
386 " -k<size> Sets the initial thread stack size (default 1k) Egs: -K4k -K2m",
388 " -A<size> Sets the minimum allocation area size (default 256k) Egs: -A1m -A10k",
389 " -M<size> Sets the maximum heap size (default unlimited) Egs: -M256k -M1G",
390 " -H<size> Sets the minimum heap size (default 0M) Egs: -H24m -H1G",
391 " -m<n> Minimum % of heap which must be available (default 3%)",
392 " -G<n> Number of generations (default: 2)",
393 " -T<n> Number of steps in younger generations (default: 2)",
394 " -c<n> Auto-enable compaction of the oldest generation when live data is",
395 " at least <n>% of the maximum heap size set with -M (default: 30%)",
396 " -c Enable compaction for all major collections",
398 " -t<file> One-line GC statistics (default file: <program>.stat)",
399 " -s<file> Summary GC statistics (with -Sstderr going to stderr)",
400 " -S<file> Detailed GC statistics",
401 #ifdef RTS_GTK_FRONTPANEL
402 " -f Display front panel (requires X11 & GTK+)",
406 " -Z Don't squeeze out update frames on stack overflow",
407 " -B Sound the bell at the start of each garbage collection",
408 #if defined(PROFILING) || defined(PAR)
410 " -px Time/allocation profile (XML) (output file <program>.prof)",
411 " -p Time/allocation profile (output file <program>.prof)",
412 " -P More detailed Time/Allocation profile",
413 " -Pa Give information about *all* cost centres",
415 # if defined(PROFILING)
417 " -hx Heap residency profile (XML) (output file <program>.prof)",
418 " -h<break-down> Heap residency profile (text) (output file <program>.prof)",
419 " break-down: C = cost centre stack (default), M = module",
420 " D = closure description, Y = type description",
421 " -hR Retainer profile (output files <program>.hp)",
422 " -hL Lag/Drag/Void/Use profile (output files <program>.hp)",
423 " A subset of closures may be selected thusly:",
424 " -hc{cc, cc ...} specific cost centre(s) (NOT STACKS!)",
425 " -hm{mod,mod...} all cost centres from the specified modules(s)",
426 " -hd{des,des...} closures with specified closure descriptions",
427 " -hy{typ,typ...} closures with specified type descriptions",
429 " -i<msec> Time between heap samples (msec, default: 20)",
431 " -xc Show current cost centre stack on raising an exception",
433 #endif /* PROFILING or PAR */
434 #if !defined(PROFILING) && defined(DEBUG)
436 " -h<break-down> Debugging Heap residency profile",
437 " (output file <program>.hp)",
438 " break-down: L = closure label (default)",
439 " T = closure type (constructor, thunk etc.)",
442 #if defined(TICKY_TICKY)
443 " -r<file> Produce reduction profiling statistics (with -rstderr for stderr)",
447 " -N<n> Use <n> PVMish processors in parallel (default: 2)",
448 /* NB: the -N<n> is implemented by the driver!! */
450 " -C<secs> Context-switch interval in seconds",
451 " (0 or no argument means switch as often as possible)",
452 " the default is .02 sec; resolution is .02 sec",
454 " -N<n> Use <n> OS threads (default: 1)",
456 #if defined(SMP) || defined(PAR)
457 " -e<size> Size of spark pools (default 100)",
460 " -t<num> Set maximum number of advisory threads per PE (default 32)",
461 " -qP Enable activity profile (output files in ~/<program>*.gr)",
462 " -qQ<size> Set pack-buffer size (default: 1024)",
463 " -qd Turn on PVM-ish debugging",
464 " -qO Disable output for performance measurement",
466 #if defined(SMP) || defined(PAR)
467 " -e<n> Maximum number of outstanding local sparks (default: 4096)",
470 " -d Turn on PVM-ish debugging",
471 " -O Disable output for performance measurement",
473 #if defined(GRAN) /* ToDo: fill in decent Docu here */
474 " -b... All GranSim options start with -b; see GranSim User's Guide for details",
477 "RTS options may also be specified using the GHCRTS environment variable.",
479 "Other RTS options may be available for programs compiled a different way.",
480 "The GHC User's Guide has full details.",
485 static __inline__ rtsBool
486 strequal(const char *a, const char * b)
488 return(strcmp(a, b) == 0);
492 splitRtsFlags(char *s, int *rts_argc, char *rts_argv[])
498 while (isspace(*c1)) { c1++; };
500 while (!isspace(*c2) && *c2 != '\0') { c2++; };
502 if (c1 == c2) { break; }
504 if (*rts_argc < MAX_RTS_ARGS-1) {
506 strncpy(s, c1, c2-c1);
508 rts_argv[(*rts_argc)++] = s;
510 barf("too many RTS arguments (max %d)", MAX_RTS_ARGS-1);
514 } while (*c1 != '\0');
518 setupRtsFlags(int *argc, char *argv[], int *rts_argc, char *rts_argv[])
520 rtsBool error = rtsFalse;
525 /* Remove directory from argv[0] -- default files in current directory */
527 if ((last_slash = (char *) strrchr(argv[0], '/')) != NULL)
528 strcpy(argv[0], last_slash+1);
536 // process arguments from the ghc_rts_opts global variable first.
537 // (arguments from the GHCRTS environment variable and the command
538 // line override these).
540 if (ghc_rts_opts != NULL) {
541 splitRtsFlags(ghc_rts_opts, rts_argc, rts_argv);
545 // process arguments from the GHCRTS environment variable first
546 // (arguments from the command line override these).
548 char *ghc_rts = getenv("GHCRTS");
550 if (ghc_rts != NULL) {
551 splitRtsFlags(ghc_rts, rts_argc, rts_argv);
555 // Split arguments (argv) into PGM (argv) and RTS (rts_argv) parts
556 // argv[0] must be PGM argument -- leave in argv
558 for (mode = PGM; arg < total_arg; arg++) {
559 // The '--RTS' argument disables all future +RTS ... -RTS processing.
560 if (strequal("--RTS", argv[arg])) {
564 // The '--' argument is passed through to the program, but
565 // disables all further +RTS ... -RTS processing.
566 else if (strequal("--", argv[arg])) {
569 else if (strequal("+RTS", argv[arg])) {
572 else if (strequal("-RTS", argv[arg])) {
575 else if (mode == RTS && *rts_argc < MAX_RTS_ARGS-1) {
576 rts_argv[(*rts_argc)++] = argv[arg];
578 else if (mode == PGM) {
579 argv[(*argc)++] = argv[arg];
582 barf("too many RTS arguments (max %d)", MAX_RTS_ARGS-1);
585 // process remaining program arguments
586 for (; arg < total_arg; arg++) {
587 argv[(*argc)++] = argv[arg];
589 argv[*argc] = (char *) 0;
590 rts_argv[*rts_argc] = (char *) 0;
592 // Process RTS (rts_argv) part: mainly to determine statsfile
593 for (arg = 0; arg < *rts_argc; arg++) {
594 if (rts_argv[arg][0] != '-') {
596 prog_belch("unexpected RTS argument: %s", rts_argv[arg]);
600 switch(rts_argv[arg][1]) {
602 /* process: general args, then PROFILING-only ones,
603 then CONCURRENT-only, PARallel-only, GRAN-only,
604 TICKY-only (same order as defined in RtsFlags.lh);
605 within those groups, mostly in case-insensitive
607 Final group is x*, which allows for more options.
611 # define TICKY_BUILD_ONLY(x) x
613 # define TICKY_BUILD_ONLY(x) \
614 prog_belch("GHC not built for: ticky-ticky stats"); \
618 #if defined(PROFILING)
619 # define COST_CENTRE_USING_BUILD_ONLY(x) x
621 # define COST_CENTRE_USING_BUILD_ONLY(x) \
622 prog_belch("GHC not built for: -prof or -parallel"); \
627 # define PROFILING_BUILD_ONLY(x) x
629 # define PROFILING_BUILD_ONLY(x) \
630 prog_belch("GHC not built for: -prof"); \
635 # define SMP_BUILD_ONLY(x) x
637 # define SMP_BUILD_ONLY(x) \
638 prog_belch("GHC not built for: -smp"); \
643 # define PAR_BUILD_ONLY(x) x
645 # define PAR_BUILD_ONLY(x) \
646 prog_belch("GHC not built for: -parallel"); \
650 #if defined(SMP) || defined(PAR)
651 # define PAR_OR_SMP_BUILD_ONLY(x) x
653 # define PAR_OR_SMP_BUILD_ONLY(x) \
654 prog_belch("GHC not built for: -parallel or -smp"); \
659 # define GRAN_BUILD_ONLY(x) x
661 # define GRAN_BUILD_ONLY(x) \
662 prog_belch("GHC not built for: -gransim"); \
666 /* =========== GENERAL ========================== */
672 RtsFlags.GcFlags.minAllocAreaSize
673 = decode(rts_argv[arg]+2) / BLOCK_SIZE;
674 if (RtsFlags.GcFlags.minAllocAreaSize <= 0) {
675 bad_option(rts_argv[arg]);
680 RtsFlags.GcFlags.ringBell = rtsTrue;
684 if (rts_argv[arg][2] != '\0') {
685 RtsFlags.GcFlags.compactThreshold =
686 atof(rts_argv[arg]+2);
688 RtsFlags.GcFlags.compact = rtsTrue;
693 RtsFlags.GcFlags.oldGenFactor = atof(rts_argv[arg]+2);
695 if (RtsFlags.GcFlags.oldGenFactor < 0)
696 bad_option( rts_argv[arg] );
701 if (isdigit(rts_argv[arg][2])) {/* Set all debugging options in one */
702 /* hack warning: interpret the flags as a binary number */
703 nat n = decode(rts_argv[arg]+2);
704 set_debug_options(n);
710 RtsFlags.GcFlags.maxStkSize =
711 decode(rts_argv[arg]+2) / sizeof(W_);
713 if (RtsFlags.GcFlags.maxStkSize == 0)
714 bad_option( rts_argv[arg] );
718 RtsFlags.GcFlags.initialStkSize =
719 decode(rts_argv[arg]+2) / sizeof(W_);
721 if (RtsFlags.GcFlags.initialStkSize == 0)
722 bad_option( rts_argv[arg] );
726 RtsFlags.GcFlags.maxHeapSize =
727 decode(rts_argv[arg]+2) / BLOCK_SIZE;
728 /* user give size in *bytes* but "maxHeapSize" is in *blocks* */
730 if (RtsFlags.GcFlags.maxHeapSize <= 0) {
731 bad_option(rts_argv[arg]);
736 RtsFlags.GcFlags.pcFreeHeap = atof(rts_argv[arg]+2);
738 if (RtsFlags.GcFlags.pcFreeHeap < 0 ||
739 RtsFlags.GcFlags.pcFreeHeap > 100)
740 bad_option( rts_argv[arg] );
744 RtsFlags.GcFlags.generations = decode(rts_argv[arg]+2);
745 if (RtsFlags.GcFlags.generations < 1) {
746 bad_option(rts_argv[arg]);
751 RtsFlags.GcFlags.steps = decode(rts_argv[arg]+2);
752 if (RtsFlags.GcFlags.steps < 1) {
753 bad_option(rts_argv[arg]);
758 RtsFlags.GcFlags.heapSizeSuggestion =
759 decode(rts_argv[arg]+2) / BLOCK_SIZE;
761 if (RtsFlags.GcFlags.heapSizeSuggestion <= 0) {
762 bad_option(rts_argv[arg]);
766 #ifdef RTS_GTK_FRONTPANEL
768 RtsFlags.GcFlags.frontpanel = rtsTrue;
773 RtsFlags.GcFlags.giveStats = VERBOSE_GC_STATS;
777 RtsFlags.GcFlags.giveStats = SUMMARY_GC_STATS;
781 RtsFlags.GcFlags.giveStats = ONELINE_GC_STATS;
786 /* Opening all those files would almost certainly fail... */
787 // RtsFlags.ParFlags.ParStats.Full = rtsTrue;
788 RtsFlags.GcFlags.statsFile = stderr; /* temporary; ToDo: rm */
790 RtsFlags.GcFlags.statsFile
791 = open_stats_file(arg, *argc, argv,
792 *rts_argc, rts_argv, STAT_FILENAME_FMT);
794 if (RtsFlags.GcFlags.statsFile == NULL) error = rtsTrue;
799 RtsFlags.GcFlags.squeezeUpdFrames = rtsFalse;
802 /* =========== PROFILING ========================== */
804 case 'P': /* detailed cost centre profiling (time/alloc) */
805 case 'p': /* cost centre profiling (time/alloc) */
806 COST_CENTRE_USING_BUILD_ONLY(
807 switch (rts_argv[arg][2]) {
809 RtsFlags.CcFlags.doCostCentres = COST_CENTRES_XML;
812 RtsFlags.CcFlags.doCostCentres = COST_CENTRES_ALL;
815 if (rts_argv[arg][1] == 'P') {
816 RtsFlags.CcFlags.doCostCentres =
817 COST_CENTRES_VERBOSE;
819 RtsFlags.CcFlags.doCostCentres =
820 COST_CENTRES_SUMMARY;
826 case 'h': /* serial heap profile */
827 #if !defined(PROFILING) && defined(DEBUG)
828 switch (rts_argv[arg][2]) {
831 RtsFlags.ProfFlags.doHeapProfile = HEAP_BY_INFOPTR;
834 RtsFlags.ProfFlags.doHeapProfile = HEAP_BY_CLOSURE_TYPE;
837 prog_belch("invalid heap profile option: %s",rts_argv[arg]);
841 PROFILING_BUILD_ONLY(
842 switch (rts_argv[arg][2]) {
845 if (RtsFlags.ProfFlags.doHeapProfile == 0) {
846 RtsFlags.ProfFlags.doHeapProfile = HEAP_BY_CCS;
852 if (RtsFlags.ProfFlags.doHeapProfile == 0) {
853 RtsFlags.ProfFlags.doHeapProfile = HEAP_BY_MOD;
859 if (RtsFlags.ProfFlags.doHeapProfile == 0) {
860 RtsFlags.ProfFlags.doHeapProfile = HEAP_BY_DESCR;
866 if (RtsFlags.ProfFlags.doHeapProfile == 0) {
867 RtsFlags.ProfFlags.doHeapProfile = HEAP_BY_TYPE;
873 if (RtsFlags.ProfFlags.doHeapProfile == 0) {
874 RtsFlags.ProfFlags.doHeapProfile = HEAP_BY_RETAINER;
880 if (RtsFlags.ProfFlags.doHeapProfile == 0) {
881 RtsFlags.ProfFlags.doHeapProfile = HEAP_BY_LDV;
887 prog_belch("multiple heap profile options");
891 case 'c': /* cost centre label select */
892 case 'm': /* cost centre module select */
893 case 'd': /* closure descr select */
894 case 'y': /* closure type select */
895 {char *left = strchr(rts_argv[arg], '{');
896 char *right = strrchr(rts_argv[arg], '}');
897 if (! left || ! right ||
898 strrchr(rts_argv[arg], '{') != left ||
899 strchr(rts_argv[arg], '}') != right) {
901 "Invalid heap profiling selection bracketing\n %s\n",
906 switch (rts_argv[arg][2]) {
907 case 'c': /* cost centre label select */
908 RtsFlags.ProfFlags.ccSelector = left + 1;
910 case 'm': /* cost centre module select */
911 RtsFlags.ProfFlags.modSelector = left + 1;
913 case 'd': /* closure descr select */
914 RtsFlags.ProfFlags.descrSelector = left + 1;
916 case 'y': /* closure type select */
917 RtsFlags.ProfFlags.typeSelector = left + 1;
924 prog_belch("invalid heap profile option: %s",rts_argv[arg]);
932 #if defined(PROFILING)
933 case 'i': /* heap sample interval */
934 if (rts_argv[arg][2] == '\0') {
939 /* Convert to milliseconds */
940 cst = (I_) ((atof(rts_argv[arg]+2) * 1000));
941 cst = (cst / CS_MIN_MILLISECS) * CS_MIN_MILLISECS;
942 if (cst != 0 && cst < CS_MIN_MILLISECS)
943 cst = CS_MIN_MILLISECS;
945 RtsFlags.ProfFlags.profileInterval = cst;
950 /* =========== CONCURRENT ========================= */
951 case 'C': /* context switch interval */
952 if (rts_argv[arg][2] == '\0')
953 RtsFlags.ConcFlags.ctxtSwitchTime = 0;
957 /* Convert to milliseconds */
958 cst = (I_) ((atof(rts_argv[arg]+2) * 1000));
959 cst = (cst / CS_MIN_MILLISECS) * CS_MIN_MILLISECS;
960 if (cst != 0 && cst < CS_MIN_MILLISECS)
961 cst = CS_MIN_MILLISECS;
963 RtsFlags.ConcFlags.ctxtSwitchTime = cst;
970 if (rts_argv[arg][2] != '\0') {
971 RtsFlags.ParFlags.nNodes
972 = strtol(rts_argv[arg]+2, (char **) NULL, 10);
973 if (RtsFlags.ParFlags.nNodes <= 0) {
974 prog_belch("bad value for -N");
980 /* =========== PARALLEL =========================== */
982 PAR_OR_SMP_BUILD_ONLY(
983 if (rts_argv[arg][2] != '\0') {
984 RtsFlags.ParFlags.maxLocalSparks
985 = strtol(rts_argv[arg]+2, (char **) NULL, 10);
986 if (RtsFlags.ParFlags.maxLocalSparks <= 0) {
987 prog_belch("bad value for -e");
995 process_par_option(arg, rts_argc, rts_argv, &error);
998 /* =========== GRAN =============================== */
1002 process_gran_option(arg, rts_argc, rts_argv, &error);
1005 /* =========== TICKY ============================== */
1007 case 'r': /* Basic profiling stats */
1010 RtsFlags.TickyFlags.showTickyStats = rtsTrue;
1011 RtsFlags.TickyFlags.tickyFile
1012 = open_stats_file(arg, *argc, argv,
1013 *rts_argc, rts_argv, TICKY_FILENAME_FMT);
1015 if (RtsFlags.TickyFlags.tickyFile == NULL) error = rtsTrue;
1018 /* =========== EXTENDED OPTIONS =================== */
1020 case 'x': /* Extend the argument space */
1021 switch(rts_argv[arg][2]) {
1023 prog_belch("incomplete RTS option: %s",rts_argv[arg]);
1027 case 'c': /* Debugging tool: show current cost centre on an exception */
1028 PROFILING_BUILD_ONLY(
1029 RtsFlags.ProfFlags.showCCSOnException = rtsTrue;
1032 /* The option prefix '-xx' is reserved for future extension. KSW 1999-11. */
1035 prog_belch("unknown RTS option: %s",rts_argv[arg]);
1039 break; /* defensive programming */
1041 /* =========== OH DEAR ============================ */
1043 prog_belch("unknown RTS option: %s",rts_argv[arg]);
1053 for (p = usage_text; *p; p++)
1055 stg_exit(EXIT_FAILURE);
1061 //@node GranSim specific options, Aux fcts, Command-line option parsing routines
1062 //@subsection GranSim specific options
1065 enable_GranSimLight(void) {
1067 fprintf(stderr,"GrAnSim Light enabled (infinite number of processors; 0 communication costs)\n");
1068 RtsFlags.GranFlags.Light=rtsTrue;
1069 RtsFlags.GranFlags.Costs.latency =
1070 RtsFlags.GranFlags.Costs.fetchtime =
1071 RtsFlags.GranFlags.Costs.additional_latency =
1072 RtsFlags.GranFlags.Costs.gunblocktime =
1073 RtsFlags.GranFlags.Costs.lunblocktime =
1074 RtsFlags.GranFlags.Costs.threadcreatetime =
1075 RtsFlags.GranFlags.Costs.threadqueuetime =
1076 RtsFlags.GranFlags.Costs.threadscheduletime =
1077 RtsFlags.GranFlags.Costs.threaddescheduletime =
1078 RtsFlags.GranFlags.Costs.threadcontextswitchtime = 0;
1080 RtsFlags.GranFlags.Costs.mpacktime =
1081 RtsFlags.GranFlags.Costs.munpacktime = 0;
1083 RtsFlags.GranFlags.DoFairSchedule = rtsTrue;
1084 RtsFlags.GranFlags.DoAsyncFetch = rtsFalse;
1085 RtsFlags.GranFlags.DoAlwaysCreateThreads = rtsTrue;
1086 /* FetchStrategy is irrelevant in GrAnSim-Light */
1088 /* GrAnSim Light often creates an abundance of parallel threads,
1089 each with its own stack etc. Therefore, it's in general a good
1090 idea to use small stack chunks (use the -o<size> option to
1093 // RtsFlags.ConcFlags.stkChunkSize = 100;
1095 RtsFlags.GranFlags.proc = 1;
1099 process_gran_option(int arg, int *rts_argc, char *rts_argv[], rtsBool *error)
1101 if (rts_argv[arg][1] != 'b') /* All GranSim options start with -b */
1104 /* or a ridiculously idealised simulator */
1105 if(strcmp((rts_argv[arg]+2),"oring")==0) {
1106 RtsFlags.GranFlags.Costs.latency =
1107 RtsFlags.GranFlags.Costs.fetchtime =
1108 RtsFlags.GranFlags.Costs.additional_latency =
1109 RtsFlags.GranFlags.Costs.gunblocktime =
1110 RtsFlags.GranFlags.Costs.lunblocktime =
1111 RtsFlags.GranFlags.Costs.threadcreatetime =
1112 RtsFlags.GranFlags.Costs.threadqueuetime =
1113 RtsFlags.GranFlags.Costs.threadscheduletime =
1114 RtsFlags.GranFlags.Costs.threaddescheduletime =
1115 RtsFlags.GranFlags.Costs.threadcontextswitchtime = 0;
1117 RtsFlags.GranFlags.Costs.mpacktime =
1118 RtsFlags.GranFlags.Costs.munpacktime = 0;
1120 RtsFlags.GranFlags.Costs.arith_cost =
1121 RtsFlags.GranFlags.Costs.float_cost =
1122 RtsFlags.GranFlags.Costs.load_cost =
1123 RtsFlags.GranFlags.Costs.store_cost =
1124 RtsFlags.GranFlags.Costs.branch_cost = 0;
1126 RtsFlags.GranFlags.Costs.heapalloc_cost = 1;
1128 /* ++RtsFlags.GranFlags.DoFairSchedule; */
1129 RtsFlags.GranFlags.DoStealThreadsFirst = rtsTrue; /* -bZ */
1130 RtsFlags.GranFlags.DoThreadMigration = rtsTrue; /* -bM */
1131 RtsFlags.GranFlags.GranSimStats.Full = rtsTrue; /* -bP */
1135 /* or a somewhat idealised simulator */
1136 if(strcmp((rts_argv[arg]+2),"onzo")==0) {
1137 RtsFlags.GranFlags.Costs.latency =
1138 RtsFlags.GranFlags.Costs.fetchtime =
1139 RtsFlags.GranFlags.Costs.additional_latency =
1140 RtsFlags.GranFlags.Costs.gunblocktime =
1141 RtsFlags.GranFlags.Costs.lunblocktime =
1142 RtsFlags.GranFlags.Costs.threadcreatetime =
1143 RtsFlags.GranFlags.Costs.threadqueuetime =
1144 RtsFlags.GranFlags.Costs.threadscheduletime =
1145 RtsFlags.GranFlags.Costs.threaddescheduletime =
1146 RtsFlags.GranFlags.Costs.threadcontextswitchtime = 0;
1148 RtsFlags.GranFlags.Costs.mpacktime =
1149 RtsFlags.GranFlags.Costs.munpacktime = 0;
1151 RtsFlags.GranFlags.Costs.heapalloc_cost = 1;
1153 /* RtsFlags.GranFlags.DoFairSchedule = rtsTrue; */ /* -b-R */
1154 /* RtsFlags.GranFlags.DoStealThreadsFirst = rtsTrue; */ /* -b-T */
1155 RtsFlags.GranFlags.DoAsyncFetch = rtsTrue; /* -bZ */
1156 RtsFlags.GranFlags.DoThreadMigration = rtsTrue; /* -bM */
1157 RtsFlags.GranFlags.GranSimStats.Full = rtsTrue; /* -bP */
1158 # if defined(GRAN_CHECK) && defined(GRAN)
1159 RtsFlags.GranFlags.Debug.event_stats = rtsTrue; /* print event statistics */
1164 /* Communication and task creation cost parameters */
1165 switch(rts_argv[arg][2]) {
1167 IgnoreYields = rtsTrue; // HWL HACK
1171 enable_GranSimLight(); /* set flags for GrAnSim-Light mode */
1175 if (rts_argv[arg][3] != '\0')
1177 RtsFlags.GranFlags.Costs.gunblocktime =
1178 RtsFlags.GranFlags.Costs.latency = decode(rts_argv[arg]+3);
1179 RtsFlags.GranFlags.Costs.fetchtime = 2*RtsFlags.GranFlags.Costs.latency;
1182 RtsFlags.GranFlags.Costs.latency = LATENCY;
1186 if (rts_argv[arg][3] != '\0')
1187 RtsFlags.GranFlags.Costs.additional_latency = decode(rts_argv[arg]+3);
1189 RtsFlags.GranFlags.Costs.additional_latency = ADDITIONAL_LATENCY;
1193 if (rts_argv[arg][3] != '\0')
1194 RtsFlags.GranFlags.Costs.mpacktime = decode(rts_argv[arg]+3);
1196 RtsFlags.GranFlags.Costs.mpacktime = MSGPACKTIME;
1200 if (rts_argv[arg][3] != '\0')
1201 RtsFlags.GranFlags.Costs.mtidytime = decode(rts_argv[arg]+3);
1203 RtsFlags.GranFlags.Costs.mtidytime = 0;
1207 if (rts_argv[arg][3] != '\0')
1208 RtsFlags.GranFlags.Costs.munpacktime = decode(rts_argv[arg]+3);
1210 RtsFlags.GranFlags.Costs.munpacktime = MSGUNPACKTIME;
1214 if (rts_argv[arg][3] != '\0')
1215 RtsFlags.GranFlags.Costs.fetchtime = decode(rts_argv[arg]+3);
1217 RtsFlags.GranFlags.Costs.fetchtime = FETCHTIME;
1221 if (rts_argv[arg][3] != '\0')
1222 RtsFlags.GranFlags.Costs.gunblocktime = decode(rts_argv[arg]+3);
1224 RtsFlags.GranFlags.Costs.gunblocktime = GLOBALUNBLOCKTIME;
1228 if (rts_argv[arg][3] != '\0')
1229 RtsFlags.GranFlags.Costs.lunblocktime = decode(rts_argv[arg]+3);
1231 RtsFlags.GranFlags.Costs.lunblocktime = LOCALUNBLOCKTIME;
1234 /* Thread-related metrics */
1236 if (rts_argv[arg][3] != '\0')
1237 RtsFlags.GranFlags.Costs.threadcreatetime = decode(rts_argv[arg]+3);
1239 RtsFlags.GranFlags.Costs.threadcreatetime = THREADCREATETIME;
1243 if (rts_argv[arg][3] != '\0')
1244 RtsFlags.GranFlags.Costs.threadqueuetime = decode(rts_argv[arg]+3);
1246 RtsFlags.GranFlags.Costs.threadqueuetime = THREADQUEUETIME;
1250 if (rts_argv[arg][3] != '\0')
1251 RtsFlags.GranFlags.Costs.threadscheduletime = decode(rts_argv[arg]+3);
1253 RtsFlags.GranFlags.Costs.threadscheduletime = THREADSCHEDULETIME;
1255 RtsFlags.GranFlags.Costs.threadcontextswitchtime = RtsFlags.GranFlags.Costs.threadscheduletime
1256 + RtsFlags.GranFlags.Costs.threaddescheduletime;
1260 if (rts_argv[arg][3] != '\0')
1261 RtsFlags.GranFlags.Costs.threaddescheduletime = decode(rts_argv[arg]+3);
1263 RtsFlags.GranFlags.Costs.threaddescheduletime = THREADDESCHEDULETIME;
1265 RtsFlags.GranFlags.Costs.threadcontextswitchtime = RtsFlags.GranFlags.Costs.threadscheduletime
1266 + RtsFlags.GranFlags.Costs.threaddescheduletime;
1269 /* Instruction Cost Metrics */
1271 if (rts_argv[arg][3] != '\0')
1272 RtsFlags.GranFlags.Costs.arith_cost = decode(rts_argv[arg]+3);
1274 RtsFlags.GranFlags.Costs.arith_cost = ARITH_COST;
1278 if (rts_argv[arg][3] != '\0')
1279 RtsFlags.GranFlags.Costs.float_cost = decode(rts_argv[arg]+3);
1281 RtsFlags.GranFlags.Costs.float_cost = FLOAT_COST;
1285 if (rts_argv[arg][3] != '\0')
1286 RtsFlags.GranFlags.Costs.branch_cost = decode(rts_argv[arg]+3);
1288 RtsFlags.GranFlags.Costs.branch_cost = BRANCH_COST;
1292 if (rts_argv[arg][3] != '\0')
1293 RtsFlags.GranFlags.Costs.load_cost = decode(rts_argv[arg]+3);
1295 RtsFlags.GranFlags.Costs.load_cost = LOAD_COST;
1299 if (rts_argv[arg][3] != '\0')
1300 RtsFlags.GranFlags.Costs.store_cost = decode(rts_argv[arg]+3);
1302 RtsFlags.GranFlags.Costs.store_cost = STORE_COST;
1306 if (rts_argv[arg][3] != '\0')
1307 RtsFlags.GranFlags.Costs.heapalloc_cost = decode(rts_argv[arg]+3);
1309 RtsFlags.GranFlags.Costs.heapalloc_cost = 0;
1313 RtsFlags.GranFlags.DoAsyncFetch = rtsTrue;
1314 if (rts_argv[arg][3] != '\0')
1315 RtsFlags.GranFlags.FetchStrategy = decode(rts_argv[arg]+3);
1317 RtsFlags.GranFlags.FetchStrategy = 2;
1318 if (RtsFlags.GranFlags.FetchStrategy == 0)
1319 RtsFlags.GranFlags.DoAsyncFetch = rtsFalse;
1322 case 'K': /* sort overhead (per elem in spark list) */
1323 if (rts_argv[arg][3] != '\0')
1324 RtsFlags.GranFlags.Costs.pri_spark_overhead = decode(rts_argv[arg]+3);
1326 RtsFlags.GranFlags.Costs.pri_spark_overhead = PRI_SPARK_OVERHEAD;
1327 fprintf(stderr,"Overhead for pri spark: %d (per elem).\n",
1328 RtsFlags.GranFlags.Costs.pri_spark_overhead);
1331 case 'O': /* sort overhead (per elem in spark list) */
1332 if (rts_argv[arg][3] != '\0')
1333 RtsFlags.GranFlags.Costs.pri_sched_overhead = decode(rts_argv[arg]+3);
1335 RtsFlags.GranFlags.Costs.pri_sched_overhead = PRI_SCHED_OVERHEAD;
1336 fprintf(stderr,"Overhead for pri sched: %d (per elem).\n",
1337 RtsFlags.GranFlags.Costs.pri_sched_overhead);
1340 /* General Parameters */
1342 if (rts_argv[arg][3] != '\0')
1344 RtsFlags.GranFlags.proc = decode(rts_argv[arg]+3);
1345 if (RtsFlags.GranFlags.proc==0) {
1346 enable_GranSimLight(); /* set flags for GrAnSim-Light mode */
1347 } else if (RtsFlags.GranFlags.proc > MAX_PROC ||
1348 RtsFlags.GranFlags.proc < 1)
1350 fprintf(stderr,"setupRtsFlags: no more than %u processors
1357 RtsFlags.GranFlags.proc = MAX_PROC;
1361 RtsFlags.GranFlags.Fishing = rtsTrue;
1362 if (rts_argv[arg][3] != '\0')
1363 RtsFlags.GranFlags.maxFishes = decode(rts_argv[arg]+3);
1365 RtsFlags.GranFlags.maxFishes = MAX_FISHES;
1369 if (rts_argv[arg][3] != '\0')
1370 RtsFlags.GranFlags.time_slice = decode(rts_argv[arg]+3);
1372 RtsFlags.GranFlags.time_slice = GRAN_TIME_SLICE;
1376 RtsFlags.GranFlags.DoAlwaysCreateThreads=rtsTrue;
1377 RtsFlags.GranFlags.DoThreadMigration=rtsTrue;
1381 fprintf(stderr,"Bulk fetching enabled.\n");
1382 RtsFlags.GranFlags.DoBulkFetching=rtsTrue;
1386 fprintf(stderr,"Thread migration enabled.\n");
1387 RtsFlags.GranFlags.DoThreadMigration=rtsTrue;
1391 fprintf(stderr,"Fair Scheduling enabled.\n");
1392 RtsFlags.GranFlags.DoFairSchedule=rtsTrue;
1396 fprintf(stderr,"Priority Scheduling enabled.\n");
1397 RtsFlags.GranFlags.DoPriorityScheduling=rtsTrue;
1401 RtsFlags.GranFlags.DoStealThreadsFirst=rtsTrue;
1402 RtsFlags.GranFlags.DoThreadMigration=rtsTrue;
1406 RtsFlags.GranFlags.DoAsyncFetch=rtsTrue;
1410 /* RtsFlags.GranFlags.SimplifiedFetch=rtsTrue; */
1414 RtsFlags.GranFlags.PreferSparksOfLocalNodes=rtsTrue;
1418 RtsFlags.GranFlags.GranSimStats.Binary=rtsTrue;
1422 /* format is -bP<c> where <c> is one char describing kind of profile */
1423 RtsFlags.GranFlags.GranSimStats.Full = rtsTrue;
1424 switch(rts_argv[arg][3]) {
1425 case '\0': break; // nothing special, just an ordinary profile
1426 case '0': RtsFlags.GranFlags.GranSimStats.Suppressed = rtsTrue;
1428 case 'b': RtsFlags.GranFlags.GranSimStats.Binary = rtsTrue;
1430 case 's': RtsFlags.GranFlags.GranSimStats.Sparks = rtsTrue;
1432 case 'h': RtsFlags.GranFlags.GranSimStats.Heap = rtsTrue;
1434 case 'n': RtsFlags.GranFlags.GranSimStats.NewLogfile = rtsTrue;
1436 case 'g': RtsFlags.GranFlags.GranSimStats.Global = rtsTrue;
1438 default: barf("Unknown option -bP%c", rts_argv[arg][3]);
1443 RtsFlags.GranFlags.GranSimStats.Sparks=rtsTrue;
1447 RtsFlags.GranFlags.GranSimStats.Heap=rtsTrue;
1450 case 'Y': /* syntax: -bY<n>[,<n>] n ... pos int */
1451 if (rts_argv[arg][3] != '\0') {
1454 arg0 = rts_argv[arg]+3;
1455 if ((tmp = strstr(arg0,","))==NULL) {
1456 RtsFlags.GranFlags.SparkPriority = decode(arg0);
1457 fprintf(stderr,"SparkPriority: %u.\n",RtsFlags.GranFlags.SparkPriority);
1460 RtsFlags.GranFlags.SparkPriority = decode(arg0);
1461 RtsFlags.GranFlags.SparkPriority2 = decode(tmp);
1462 fprintf(stderr,"SparkPriority: %u.\n",
1463 RtsFlags.GranFlags.SparkPriority);
1464 fprintf(stderr,"SparkPriority2:%u.\n",
1465 RtsFlags.GranFlags.SparkPriority2);
1466 if (RtsFlags.GranFlags.SparkPriority2 <
1467 RtsFlags.GranFlags.SparkPriority) {
1468 fprintf(stderr,"WARNING: 2nd pri < main pri (%u<%u); 2nd pri has no effect\n",
1469 RtsFlags.GranFlags.SparkPriority2,
1470 RtsFlags.GranFlags.SparkPriority);
1474 /* plain pri spark is now invoked with -bX
1475 RtsFlags.GranFlags.DoPrioritySparking = 1;
1476 fprintf(stderr,"PrioritySparking.\n");
1482 if (rts_argv[arg][3] != '\0') {
1483 RtsFlags.GranFlags.ThunksToPack = decode(rts_argv[arg]+3);
1485 RtsFlags.GranFlags.ThunksToPack = 1;
1487 fprintf(stderr,"Thunks To Pack in one packet: %u.\n",
1488 RtsFlags.GranFlags.ThunksToPack);
1492 RtsFlags.GranFlags.RandomSteal = rtsFalse;
1493 fprintf(stderr,"Deterministic mode (no random stealing)\n");
1496 /* The following class of options contains eXperimental */
1497 /* features in connection with exploiting granularity */
1498 /* information. I.e. if -bY is chosen these options */
1499 /* tell the RTS what to do with the supplied info --HWL */
1502 if (rts_argv[arg][3] != '\0') {
1503 RtsFlags.GranFlags.packBufferSize_internal = decode(rts_argv[arg]+3);
1505 RtsFlags.GranFlags.packBufferSize_internal = GRANSIM_DEFAULT_PACK_BUFFER_SIZE;
1507 fprintf(stderr,"Size of GranSim internal pack buffer: %u.\n",
1508 RtsFlags.GranFlags.packBufferSize_internal);
1512 switch(rts_argv[arg][3]) {
1515 RtsFlags.GranFlags.DoPrioritySparking = 1;
1516 fprintf(stderr,"Priority Sparking with Normal Priorities.\n");
1517 RtsFlags.GranFlags.InversePriorities = rtsFalse;
1518 RtsFlags.GranFlags.RandomPriorities = rtsFalse;
1519 RtsFlags.GranFlags.IgnorePriorities = rtsFalse;
1523 RtsFlags.GranFlags.DoPrioritySparking = 1;
1524 fprintf(stderr,"Priority Sparking with Inverse Priorities.\n");
1525 RtsFlags.GranFlags.InversePriorities++;
1529 RtsFlags.GranFlags.DoPrioritySparking = 1;
1530 fprintf(stderr,"Priority Sparking with Random Priorities.\n");
1531 RtsFlags.GranFlags.RandomPriorities++;
1535 RtsFlags.GranFlags.DoPrioritySparking = 1;
1536 fprintf(stderr,"Priority Sparking with No Priorities.\n");
1537 RtsFlags.GranFlags.IgnorePriorities++;
1541 bad_option( rts_argv[arg] );
1547 switch(rts_argv[arg][3]) {
1550 RtsFlags.GranFlags.DoAlwaysCreateThreads=rtsFalse;
1551 RtsFlags.GranFlags.DoThreadMigration=rtsFalse;
1555 RtsFlags.GranFlags.DoBulkFetching=rtsFalse;
1559 RtsFlags.GranFlags.DoThreadMigration=rtsFalse;
1563 RtsFlags.GranFlags.DoFairSchedule=rtsFalse;
1567 RtsFlags.GranFlags.DoStealThreadsFirst=rtsFalse;
1568 RtsFlags.GranFlags.DoThreadMigration=rtsFalse;
1572 RtsFlags.GranFlags.DoAsyncFetch=rtsFalse;
1576 RtsFlags.GranFlags.PreferSparksOfLocalNodes=rtsFalse;
1580 RtsFlags.GranFlags.GranSimStats.Suppressed=rtsTrue;
1584 RtsFlags.GranFlags.GranSimStats.Sparks=rtsFalse;
1588 RtsFlags.GranFlags.GranSimStats.Heap=rtsFalse;
1592 RtsFlags.GranFlags.GranSimStats.Binary=rtsFalse;
1596 RtsFlags.GranFlags.DoPrioritySparking = rtsFalse;
1600 RtsFlags.GranFlags.DoPrioritySparking = rtsFalse;
1601 RtsFlags.GranFlags.SparkPriority = rtsFalse;
1605 RtsFlags.GranFlags.DoPriorityScheduling = rtsFalse;
1609 RtsFlags.GranFlags.RandomSteal = rtsFalse;
1613 bad_option( rts_argv[arg] );
1618 # if defined(GRAN_CHECK) && defined(GRAN)
1620 switch(rts_argv[arg][3]) {
1621 case 'Q': /* Set pack buffer size (same as 'Q' in GUM) */
1622 if (rts_argv[arg][4] != '\0') {
1623 RtsFlags.GranFlags.packBufferSize = decode(rts_argv[arg]+4);
1624 fprintf(stderr,"Pack buffer size: %d\n",
1625 RtsFlags.GranFlags.packBufferSize);
1627 fprintf(stderr, "setupRtsFlags: missing size of PackBuffer (for -Q)\n");
1633 if (isdigit(rts_argv[arg][3])) {/* Set all debugging options in one */
1634 /* hack warning: interpret the flags as a binary number */
1635 nat n = decode(rts_argv[arg]+3);
1636 set_GranSim_debug_options(n);
1639 for (i=0; i<=MAX_GRAN_DEBUG_OPTION; i++)
1640 if (rts_argv[arg][3] == gran_debug_opts_flags[i])
1643 if (i==MAX_GRAN_DEBUG_OPTION+1) {
1644 fprintf(stderr, "Valid GranSim debug options are:\n");
1645 help_GranSim_debug_options(MAX_GRAN_DEBUG_MASK);
1646 bad_option( rts_argv[arg] );
1647 } else { // flag found; now set it
1648 set_GranSim_debug_options(GRAN_DEBUG_MASK(i)); // 2^i
1654 case 'e': /* event trace; also -bD1 */
1655 fprintf(stderr,"DEBUG: event_trace; printing event trace.\n");
1656 RtsFlags.GranFlags.Debug.event_trace = rtsTrue;
1657 /* RtsFlags.GranFlags.event_trace=rtsTrue; */
1660 case 'E': /* event statistics; also -bD2 */
1661 fprintf(stderr,"DEBUG: event_stats; printing event statistics.\n");
1662 RtsFlags.GranFlags.Debug.event_stats = rtsTrue;
1663 /* RtsFlags.GranFlags.Debug |= 0x20; print event statistics */
1666 case 'f': /* thunkStealing; also -bD4 */
1667 fprintf(stderr,"DEBUG: thunkStealing; printing forwarding of FETCHNODES.\n");
1668 RtsFlags.GranFlags.Debug.thunkStealing = rtsTrue;
1669 /* RtsFlags.GranFlags.Debug |= 0x2; print fwd messages */
1672 case 'z': /* blockOnFetch; also -bD8 */
1673 fprintf(stderr,"DEBUG: blockOnFetch; check for blocked on fetch.\n");
1674 RtsFlags.GranFlags.Debug.blockOnFetch = rtsTrue;
1675 /* RtsFlags.GranFlags.Debug |= 0x4; debug non-reschedule-on-fetch */
1678 case 't': /* blockOnFetch_sanity; also -bD16 */
1679 fprintf(stderr,"DEBUG: blockOnFetch_sanity; check for TSO asleep on fetch.\n");
1680 RtsFlags.GranFlags.Debug.blockOnFetch_sanity = rtsTrue;
1681 /* RtsFlags.GranFlags.Debug |= 0x10; debug TSO asleep for fetch */
1684 case 'S': /* priSpark; also -bD32 */
1685 fprintf(stderr,"DEBUG: priSpark; priority sparking.\n");
1686 RtsFlags.GranFlags.Debug.priSpark = rtsTrue;
1689 case 's': /* priSched; also -bD64 */
1690 fprintf(stderr,"DEBUG: priSched; priority scheduling.\n");
1691 RtsFlags.GranFlags.Debug.priSched = rtsTrue;
1694 case 'F': /* findWork; also -bD128 */
1695 fprintf(stderr,"DEBUG: findWork; searching spark-pools (local & remote), thread queues for work.\n");
1696 RtsFlags.GranFlags.Debug.findWork = rtsTrue;
1699 case 'g': /* globalBlock; also -bD256 */
1700 fprintf(stderr,"DEBUG: globalBlock; blocking on remote closures (FETCHMEs etc in GUM).\n");
1701 RtsFlags.GranFlags.Debug.globalBlock = rtsTrue;
1704 case 'G': /* pack; also -bD512 */
1705 fprintf(stderr,"DEBUG: pack; routines for (un-)packing graph structures.\n");
1706 RtsFlags.GranFlags.Debug.pack = rtsTrue;
1709 case 'P': /* packBuffer; also -bD1024 */
1710 fprintf(stderr,"DEBUG: packBuffer; routines handling pack buffer (GranSim internal!).\n");
1711 RtsFlags.GranFlags.Debug.packBuffer = rtsTrue;
1714 case 'o': /* sortedQ; also -bD2048 */
1715 fprintf(stderr,"DEBUG: sortedQ; check whether spark/thread queues are sorted.\n");
1716 RtsFlags.GranFlags.Debug.sortedQ = rtsTrue;
1719 case 'r': /* randomSteal; also -bD4096 */
1720 fprintf(stderr,"DEBUG: randomSteal; stealing sparks/threads from random PEs.\n");
1721 RtsFlags.GranFlags.Debug.randomSteal = rtsTrue;
1724 case 'q': /* checkSparkQ; also -bD8192 */
1725 fprintf(stderr,"DEBUG: checkSparkQ; check consistency of the spark queues.\n");
1726 RtsFlags.GranFlags.Debug.checkSparkQ = rtsTrue;
1729 case ':': /* checkLight; also -bD16384 */
1730 fprintf(stderr,"DEBUG: checkLight; check GranSim-Light setup.\n");
1731 RtsFlags.GranFlags.Debug.checkLight = rtsTrue;
1734 case 'b': /* bq; also -bD32768 */
1735 fprintf(stderr,"DEBUG: bq; check blocking queues\n");
1736 RtsFlags.GranFlags.Debug.bq = rtsTrue;
1739 case 'd': /* all options turned on */
1740 fprintf(stderr,"DEBUG: all options turned on.\n");
1741 set_GranSim_debug_options(MAX_GRAN_DEBUG_MASK);
1742 /* RtsFlags.GranFlags.Debug |= 0x40; */
1746 /* RtsFlags.GranFlags.Debug = 1; */
1752 # endif /* GRAN_CHECK */
1754 bad_option( rts_argv[arg] );
1760 Interpret n as a binary number masking GranSim debug options and set the
1761 correxponding option. See gran_debug_opts_strs for explanations of the flags.
1764 set_GranSim_debug_options(nat n) {
1767 for (i=0; i<=MAX_GRAN_DEBUG_OPTION; i++)
1769 fprintf(stderr, gran_debug_opts_strs[i]);
1771 case 0: RtsFlags.GranFlags.Debug.event_trace = rtsTrue; break;
1772 case 1: RtsFlags.GranFlags.Debug.event_stats = rtsTrue; break;
1773 case 2: RtsFlags.GranFlags.Debug.bq = rtsTrue; break;
1774 case 3: RtsFlags.GranFlags.Debug.pack = rtsTrue; break;
1775 case 4: RtsFlags.GranFlags.Debug.checkSparkQ = rtsTrue; break;
1776 case 5: RtsFlags.GranFlags.Debug.thunkStealing = rtsTrue; break;
1777 case 6: RtsFlags.GranFlags.Debug.randomSteal = rtsTrue; break;
1778 case 7: RtsFlags.GranFlags.Debug.findWork = rtsTrue; break;
1779 case 8: RtsFlags.GranFlags.Debug.unused = rtsTrue; break;
1780 case 9: RtsFlags.GranFlags.Debug.pri = rtsTrue; break;
1781 case 10: RtsFlags.GranFlags.Debug.checkLight = rtsTrue; break;
1782 case 11: RtsFlags.GranFlags.Debug.sortedQ = rtsTrue; break;
1783 case 12: RtsFlags.GranFlags.Debug.blockOnFetch = rtsTrue; break;
1784 case 13: RtsFlags.GranFlags.Debug.packBuffer = rtsTrue; break;
1785 case 14: RtsFlags.GranFlags.Debug.blockOnFetch_sanity = rtsTrue; break;
1786 default: barf("set_GranSim_debug_options: only %d debug options expected");
1792 Print one line explanation for each of the GranSim debug options specified
1796 help_GranSim_debug_options(nat n) {
1799 for (i=0; i<=MAX_GRAN_DEBUG_OPTION; i++)
1801 fprintf(stderr, gran_debug_opts_strs[i]);
1807 process_par_option(int arg, int *rts_argc, char *rts_argv[], rtsBool *error)
1810 if (rts_argv[arg][1] != 'q') { /* All GUM options start with -q */
1811 belch("Warning: GUM option does not start with -q: %s", rts_argv[arg]);
1815 /* Communication and task creation cost parameters */
1816 switch(rts_argv[arg][2]) {
1817 case 'e': /* -qe<n> ... allow <n> local sparks */
1818 if (rts_argv[arg][3] != '\0') { /* otherwise, stick w/ the default */
1819 RtsFlags.ParFlags.maxLocalSparks
1820 = strtol(rts_argv[arg]+3, (char **) NULL, 10);
1822 if (RtsFlags.ParFlags.maxLocalSparks <= 0) {
1823 belch("setupRtsFlags: bad value for -e\n");
1827 IF_PAR_DEBUG(verbose,
1828 belch("-qe<n>: max %d local sparks",
1829 RtsFlags.ParFlags.maxLocalSparks));
1833 if (rts_argv[arg][3] != '\0') {
1834 RtsFlags.ParFlags.maxThreads
1835 = strtol(rts_argv[arg]+3, (char **) NULL, 10);
1837 belch("setupRtsFlags: missing size for -qt\n");
1840 IF_PAR_DEBUG(verbose,
1841 belch("-qt<n>: max %d threads",
1842 RtsFlags.ParFlags.maxThreads));
1846 if (rts_argv[arg][3] != '\0')
1847 RtsFlags.ParFlags.maxFishes = decode(rts_argv[arg]+3);
1849 RtsFlags.ParFlags.maxFishes = MAX_FISHES;
1851 IF_PAR_DEBUG(verbose,
1852 belch("-qf<n>: max %d fishes sent out at one time",
1853 RtsFlags.ParFlags.maxFishes));
1857 if (rts_argv[arg][3] != '\0') {
1858 RtsFlags.ParFlags.fishDelay
1859 = strtol(rts_argv[arg]+3, (char **) NULL, 10);
1861 belch("setupRtsFlags: missing fish delay time for -qF\n");
1864 IF_PAR_DEBUG(verbose,
1865 belch("-qF<n>: fish delay time %d us",
1866 RtsFlags.ParFlags.fishDelay));
1870 RtsFlags.ParFlags.outputDisabled = rtsTrue;
1871 IF_PAR_DEBUG(verbose,
1872 belch("-qO: output disabled"));
1875 case 'g': /* -qg<n> ... globalisation scheme */
1876 if (rts_argv[arg][3] != '\0') {
1877 RtsFlags.ParFlags.globalising = decode(rts_argv[arg]+3);
1879 belch("setupRtsFlags: missing identifier for globalisation scheme (for -qg)\n");
1882 IF_PAR_DEBUG(verbose,
1883 belch("-qg<n>: globalisation scheme set to %d",
1884 RtsFlags.ParFlags.globalising));
1887 case 'h': /* -qh<n> ... max number of thunks (except root) in packet */
1888 if (rts_argv[arg][3] != '\0') {
1889 RtsFlags.ParFlags.thunksToPack = decode(rts_argv[arg]+3);
1891 belch("setupRtsFlags: missing number of thunks per packet (for -qh)\n");
1894 IF_PAR_DEBUG(verbose,
1895 belch("-qh<n>: thunks per packet set to %d",
1896 RtsFlags.ParFlags.thunksToPack));
1899 case 'P': /* -qP for writing a log file */
1900 //RtsFlags.ParFlags.ParStats.Full = rtsFalse;
1901 /* same encoding as in GranSim after -bP */
1902 switch(rts_argv[arg][3]) {
1903 case '\0': RtsFlags.ParFlags.ParStats.Full = rtsTrue;
1904 break; // nothing special, just an ordinary profile
1905 case '0': RtsFlags.ParFlags.ParStats.Suppressed = rtsTrue;
1906 RtsFlags.ParFlags.ParStats.Full = rtsFalse;
1908 case 'b': RtsFlags.ParFlags.ParStats.Binary = rtsTrue;
1910 case 's': RtsFlags.ParFlags.ParStats.Sparks = rtsTrue;
1912 //case 'h': RtsFlags.parFlags.ParStats.Heap = rtsTrue;
1914 case 'n': RtsFlags.ParFlags.ParStats.NewLogfile = rtsTrue;
1917 # if defined(PAR_TICKY)
1918 RtsFlags.ParFlags.ParStats.Global = rtsTrue;
1920 fprintf(stderr,"-qPg is only possible for a PAR_TICKY RTS, which this is not");
1921 stg_exit(EXIT_FAILURE);
1924 default: barf("Unknown option -qP%c", rts_argv[arg][2]);
1926 IF_PAR_DEBUG(verbose,
1927 belch("(-qP) writing to log-file (RtsFlags.ParFlags.ParStats.Full=%s)",
1928 (RtsFlags.ParFlags.ParStats.Full ? "rtsTrue" : "rtsFalse")));
1931 case 'Q': /* -qQ<n> ... set pack buffer size to <n> */
1932 if (rts_argv[arg][3] != '\0') {
1933 RtsFlags.ParFlags.packBufferSize = decode(rts_argv[arg]+3);
1935 belch("setupRtsFlags: missing size of PackBuffer (for -qQ)\n");
1938 IF_PAR_DEBUG(verbose,
1939 belch("-qQ<n>: pack buffer size set to %d",
1940 RtsFlags.ParFlags.packBufferSize));
1944 RtsFlags.ParFlags.doFairScheduling = rtsTrue;
1945 IF_PAR_DEBUG(verbose,
1946 belch("-qR: fair-ish scheduling"));
1951 if (rts_argv[arg][3] != '\0') {
1952 RtsFlags.ParFlags.wait
1953 = strtol(rts_argv[arg]+3, (char **) NULL, 10);
1955 RtsFlags.ParFlags.wait = 1000;
1957 IF_PAR_DEBUG(verbose,
1958 belch("-qw<n>: length of wait loop after synchr before reduction: %d",
1959 RtsFlags.ParFlags.wait));
1962 case 'D': /* -qD ... all the debugging options */
1963 if (isdigit(rts_argv[arg][3])) {/* Set all debugging options in one */
1964 /* hack warning: interpret the flags as a binary number */
1965 nat n = decode(rts_argv[arg]+3);
1966 set_par_debug_options(n);
1969 for (i=0; i<=MAX_PAR_DEBUG_OPTION; i++)
1970 if (rts_argv[arg][3] == par_debug_opts_flags[i])
1973 if (i==MAX_PAR_DEBUG_OPTION+1) {
1974 fprintf(stderr, "Valid GUM debug options are:\n");
1975 help_par_debug_options(MAX_PAR_DEBUG_MASK);
1976 bad_option( rts_argv[arg] );
1977 } else { // flag found; now set it
1978 set_par_debug_options(PAR_DEBUG_MASK(i)); // 2^i
1984 belch("Unknown option -q%c (%d opts in total)",
1985 rts_argv[arg][2], *rts_argc);
1991 Interpret n as a binary number masking Par debug options and set the
1992 correxponding option. See par_debug_opts_strs for explanations of the flags.
1995 set_par_debug_options(nat n) {
1998 for (i=0; i<=MAX_PAR_DEBUG_OPTION; i++)
2000 fprintf(stderr, par_debug_opts_strs[i]);
2002 case 0: RtsFlags.ParFlags.Debug.verbose = rtsTrue; break;
2003 case 1: RtsFlags.ParFlags.Debug.bq = rtsTrue; break;
2004 case 2: RtsFlags.ParFlags.Debug.schedule = rtsTrue; break;
2005 case 3: RtsFlags.ParFlags.Debug.free = rtsTrue; break;
2006 case 4: RtsFlags.ParFlags.Debug.resume = rtsTrue; break;
2007 case 5: RtsFlags.ParFlags.Debug.weight = rtsTrue; break;
2008 case 6: RtsFlags.ParFlags.Debug.fetch = rtsTrue; break;
2009 //case 7: RtsFlags.ParFlags.Debug.ack = rtsTrue; break;
2010 case 7: RtsFlags.ParFlags.Debug.fish = rtsTrue; break;
2011 case 8: RtsFlags.ParFlags.Debug.tables = rtsTrue; break;
2012 case 9: RtsFlags.ParFlags.Debug.packet = rtsTrue; break;
2013 case 10: RtsFlags.ParFlags.Debug.pack = rtsTrue; break;
2014 case 11: RtsFlags.ParFlags.Debug.paranoia = rtsTrue; break;
2015 default: barf("set_par_debug_options: only %d debug options expected",
2016 MAX_PAR_DEBUG_OPTION);
2022 Print one line explanation for each of the GranSim debug options specified
2026 help_par_debug_options(nat n) {
2029 for (i=0; i<=MAX_PAR_DEBUG_OPTION; i++)
2031 fprintf(stderr, par_debug_opts_strs[i]);
2038 set_debug_options(nat n) {
2041 for (i=0; i<=MAX_DEBUG_OPTION; i++)
2043 fprintf(stderr, debug_opts_strs[i]);
2045 case 0: RtsFlags.DebugFlags.scheduler = rtsTrue; break;
2046 case 1: RtsFlags.DebugFlags.evaluator = rtsTrue; break;
2047 case 2: RtsFlags.DebugFlags.codegen = rtsTrue; break;
2048 case 3: RtsFlags.DebugFlags.weak = rtsTrue; break;
2049 case 4: RtsFlags.DebugFlags.gccafs = rtsTrue; break;
2050 case 5: RtsFlags.DebugFlags.gc = rtsTrue; break;
2051 case 6: RtsFlags.DebugFlags.block_alloc = rtsTrue; break;
2052 case 7: RtsFlags.DebugFlags.sanity = rtsTrue; break;
2053 case 8: RtsFlags.DebugFlags.stable = rtsTrue; break;
2054 case 9: RtsFlags.DebugFlags.prof = rtsTrue; break;
2055 case 10: RtsFlags.DebugFlags.gran = rtsTrue; break;
2056 case 11: RtsFlags.DebugFlags.par = rtsTrue; break;
2057 case 12: RtsFlags.DebugFlags.linker = rtsTrue; break;
2058 default: barf("set_debug_options: only %d debug options expected",
2065 help_debug_options(nat n) {
2068 for (i=0; i<=MAX_DEBUG_OPTION; i++)
2070 fprintf(stderr, debug_opts_strs[i]);
2074 //@node Aux fcts, , GranSim specific options
2075 //@subsection Aux fcts
2077 static FILE * /* return NULL on error */
2080 int argc, char *argv[],
2081 int rts_argc, char *rts_argv[],
2082 const char *FILENAME_FMT)
2086 if (strequal(rts_argv[arg]+2, "stderr")) /* use real stderr */
2088 else if (rts_argv[arg][2] != '\0') /* stats file specified */
2089 f = fopen(rts_argv[arg]+2,"w");
2091 char stats_filename[STATS_FILENAME_MAXLEN]; /* default <program>.<ext> */
2092 sprintf(stats_filename, FILENAME_FMT, argv[0]);
2093 f = fopen(stats_filename,"w");
2096 fprintf(stderr, "Can't open stats file %s\n", rts_argv[arg]+2);
2098 /* Write argv and rtsv into start of stats file */
2100 for(count = 0; count < argc; count++)
2101 fprintf(f, "%s ", argv[count]);
2102 fprintf(f, "+RTS ");
2103 for(count = 0; count < rts_argc; count++)
2104 fprintf(f, "%s ", rts_argv[count]);
2112 decode(const char *s)
2123 if (c == 'g' || c == 'G')
2124 m *= 1000*1000*1000; /* UNchecked! */
2125 else if (c == 'm' || c == 'M')
2126 m *= 1000*1000; /* We do not use powers of 2 (1024) */
2127 else if (c == 'k' || c == 'K') /* to avoid possible bad effects on */
2128 m *= 1000; /* a direct-mapped cache. */
2129 else if (c == 'w' || c == 'W')
2136 bad_option(const char *s)
2138 prog_belch("bad RTS option: %s", s);
2139 stg_exit(EXIT_FAILURE);