1 /* -----------------------------------------------------------------------------
2 * $Id: RtsFlags.c,v 1.76 2004/09/03 15:28:40 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 "Timer.h" /* CS_MIN_MILLISECS */
30 #include "Profiling.h"
43 * Split argument lists
45 int prog_argc = 0; /* an "int" so as to match normal "argc" */
46 char **prog_argv = NULL;
47 char *prog_name = NULL; /* 'basename' of prog_argv[0] */
48 int rts_argc = 0; /* ditto */
49 char *rts_argv[MAX_RTS_ARGS];
51 //@node Constants, Static function decls, Includes
52 //@subsection Constants
55 * constants, used later
62 static char *gran_debug_opts_strs[] = {
63 "DEBUG (-bDe, -bD1): event_trace; printing event trace.\n",
64 "DEBUG (-bDE, -bD2): event_stats; printing event statistics.\n",
65 "DEBUG (-bDb, -bD4): bq; check blocking queues\n",
66 "DEBUG (-bDG, -bD8): pack; routines for (un-)packing graph structures.\n",
67 "DEBUG (-bDq, -bD16): checkSparkQ; check consistency of the spark queues.\n",
68 "DEBUG (-bDf, -bD32): thunkStealing; print forwarding of fetches.\n",
69 "DEBUG (-bDr, -bD64): randomSteal; stealing sparks/threads from random PEs.\n",
70 "DEBUG (-bDF, -bD128): findWork; searching spark-pools (local & remote), thread queues for work.\n",
71 "DEBUG (-bDu, -bD256): unused; currently unused flag.\n",
72 "DEBUG (-bDS, -bD512): pri; priority sparking or scheduling.\n",
73 "DEBUG (-bD:, -bD1024): checkLight; check GranSim-Light setup.\n",
74 "DEBUG (-bDo, -bD2048): sortedQ; check whether spark/thread queues are sorted.\n",
75 "DEBUG (-bDz, -bD4096): blockOnFetch; check for blocked on fetch.\n",
76 "DEBUG (-bDP, -bD8192): packBuffer; routines handling pack buffer (GranSim internal!).\n",
77 "DEBUG (-bDt, -bD16384): blockOnFetch_sanity; check for TSO asleep on fetch.\n",
80 /* one character codes for the available debug options */
81 static char gran_debug_opts_flags[] = {
82 'e', 'E', 'b', 'G', 'q', 'f', 'r', 'F', 'u', 'S', ':', 'o', 'z', 'P', 't'
87 static char *par_debug_opts_strs[] = {
88 "DEBUG (-qDv, -qD1): verbose; be generally verbose with parallel related stuff.\n",
89 "DEBUG (-qDq, -qD2): bq; print blocking queues.\n",
90 "DEBUG (-qDs, -qD4): schedule; scheduling of parallel threads.\n",
91 "DEBUG (-qDe, -qD8): free; free messages.\n",
92 "DEBUG (-qDr, -qD16): resume; resume messages.\n",
93 "DEBUG (-qDw, -qD32): weight; print weights and distrib GC stuff.\n",
94 "DEBUG (-qDF, -qD64): fetch; fetch messages.\n",
95 // "DEBUG (-qDa, -qD128): ack; ack messages.\n",
96 "DEBUG (-qDf, -qD128): fish; fish messages.\n",
97 //"DEBUG (-qDo, -qD512): forward; forwarding messages to other PEs.\n",
98 "DEBUG (-qDl, -qD256): tables; print internal LAGA etc tables.\n",
99 "DEBUG (-qDo, -qD512): packet; packets and graph structures when packing.\n",
100 "DEBUG (-qDp, -qD1024): pack; packing and unpacking graphs.\n",
101 "DEBUG (-qDz, -qD2048): paranoia; ridiculously detailed output (excellent for filling a partition).\n"
104 /* one character codes for the available debug options */
105 static char par_debug_opts_flags[] = {
106 'v', 'q', 's', 'e', 'r', 'w', 'F', 'f', 'l', 'o', 'p', 'z'
111 //@node Static function decls, Command-line option parsing routines, Constants
112 //@subsection Static function decls
114 /* -----------------------------------------------------------------------------
115 Static function decls
116 -------------------------------------------------------------------------- */
118 static int /* return NULL on error */
121 int argc, char *argv[],
122 int rts_argc, char *rts_argv[],
123 const char *FILENAME_FMT,
126 static I_ decode(const char *s);
127 static void bad_option(const char *s);
130 static void enable_GranSimLight(void);
131 static void process_gran_option(int arg, int *rts_argc, char *rts_argv[], rtsBool *error);
132 static void set_GranSim_debug_options(nat n);
133 static void help_GranSim_debug_options(nat n);
135 static void process_par_option(int arg, int *rts_argc, char *rts_argv[], rtsBool *error);
136 static void set_par_debug_options(nat n);
137 static void help_par_debug_options(nat n);
140 //@node Command-line option parsing routines, GranSim specific options, Static function decls
141 //@subsection Command-line option parsing routines
143 /* -----------------------------------------------------------------------------
144 * Command-line option parsing routines.
145 * ---------------------------------------------------------------------------*/
147 void initRtsFlagsDefaults(void)
149 RtsFlags.GcFlags.statsFile = NULL;
150 RtsFlags.GcFlags.giveStats = NO_GC_STATS;
152 RtsFlags.GcFlags.maxStkSize = (8 * 1024 * 1024) / sizeof(W_);
153 RtsFlags.GcFlags.initialStkSize = 1024 / sizeof(W_);
155 RtsFlags.GcFlags.minAllocAreaSize = (256 * 1024) / BLOCK_SIZE;
156 RtsFlags.GcFlags.minOldGenSize = (1024 * 1024) / BLOCK_SIZE;
157 RtsFlags.GcFlags.maxHeapSize = 0; /* off by default */
158 RtsFlags.GcFlags.heapSizeSuggestion = 0; /* none */
159 RtsFlags.GcFlags.pcFreeHeap = 3; /* 3% */
160 RtsFlags.GcFlags.oldGenFactor = 2;
162 /* A hack currently needed for GUM -- HWL */
163 RtsFlags.GcFlags.generations = 1;
164 RtsFlags.GcFlags.steps = 2;
165 RtsFlags.GcFlags.squeezeUpdFrames = rtsFalse;
167 RtsFlags.GcFlags.generations = 2;
168 RtsFlags.GcFlags.steps = 2;
169 RtsFlags.GcFlags.squeezeUpdFrames = rtsTrue;
171 RtsFlags.GcFlags.compact = rtsFalse;
172 RtsFlags.GcFlags.compactThreshold = 30.0;
173 #ifdef RTS_GTK_FRONTPANEL
174 RtsFlags.GcFlags.frontpanel = rtsFalse;
178 RtsFlags.DebugFlags.scheduler = rtsFalse;
179 RtsFlags.DebugFlags.interpreter = rtsFalse;
180 RtsFlags.DebugFlags.codegen = rtsFalse;
181 RtsFlags.DebugFlags.weak = rtsFalse;
182 RtsFlags.DebugFlags.gccafs = rtsFalse;
183 RtsFlags.DebugFlags.gc = rtsFalse;
184 RtsFlags.DebugFlags.block_alloc = rtsFalse;
185 RtsFlags.DebugFlags.sanity = rtsFalse;
186 RtsFlags.DebugFlags.stable = rtsFalse;
187 RtsFlags.DebugFlags.prof = rtsFalse;
188 RtsFlags.DebugFlags.gran = rtsFalse;
189 RtsFlags.DebugFlags.par = rtsFalse;
190 RtsFlags.DebugFlags.linker = rtsFalse;
193 #if defined(PROFILING) || defined(PAR)
194 RtsFlags.CcFlags.doCostCentres = 0;
195 #endif /* PROFILING or PAR */
198 RtsFlags.ProfFlags.doHeapProfile = rtsFalse;
199 RtsFlags.ProfFlags.profileInterval = 100;
200 RtsFlags.ProfFlags.includeTSOs = rtsFalse;
201 RtsFlags.ProfFlags.showCCSOnException = rtsFalse;
202 RtsFlags.ProfFlags.maxRetainerSetSize = 8;
203 RtsFlags.ProfFlags.modSelector = NULL;
204 RtsFlags.ProfFlags.descrSelector = NULL;
205 RtsFlags.ProfFlags.typeSelector = NULL;
206 RtsFlags.ProfFlags.ccSelector = NULL;
207 RtsFlags.ProfFlags.ccsSelector = NULL;
208 RtsFlags.ProfFlags.retainerSelector = NULL;
209 RtsFlags.ProfFlags.bioSelector = NULL;
212 RtsFlags.ProfFlags.doHeapProfile = rtsFalse;
215 RtsFlags.ConcFlags.ctxtSwitchTime = CS_MIN_MILLISECS; /* In milliseconds */
218 RtsFlags.ParFlags.nNodes = 1;
222 RtsFlags.ParFlags.ParStats.Full = rtsFalse;
223 RtsFlags.ParFlags.ParStats.Suppressed = rtsFalse;
224 RtsFlags.ParFlags.ParStats.Binary = rtsFalse;
225 RtsFlags.ParFlags.ParStats.Sparks = rtsFalse;
226 RtsFlags.ParFlags.ParStats.Heap = rtsFalse;
227 RtsFlags.ParFlags.ParStats.NewLogfile = rtsFalse;
228 RtsFlags.ParFlags.ParStats.Global = rtsFalse;
230 RtsFlags.ParFlags.outputDisabled = rtsFalse;
232 RtsFlags.ParFlags.doFairScheduling = rtsTrue; /* fair sched by def */
234 RtsFlags.ParFlags.doFairScheduling = rtsFalse; /* unfair sched by def */
236 RtsFlags.ParFlags.packBufferSize = 1024;
237 RtsFlags.ParFlags.thunksToPack = 1; /* 0 ... infinity; */
238 RtsFlags.ParFlags.globalising = 1; /* 0 ... everything */
239 RtsFlags.ParFlags.maxThreads = 1024;
240 RtsFlags.ParFlags.maxFishes = MAX_FISHES;
241 RtsFlags.ParFlags.fishDelay = FISH_DELAY;
244 #if defined(PAR) || defined(SMP)
245 RtsFlags.ParFlags.maxLocalSparks = 4096;
246 #endif /* PAR || SMP */
249 /* ToDo: check defaults for GranSim and GUM */
250 RtsFlags.GcFlags.maxStkSize = (8 * 1024 * 1024) / sizeof(W_);
251 RtsFlags.GcFlags.initialStkSize = 1024 / sizeof(W_);
253 RtsFlags.GranFlags.maxThreads = 65536; // refers to mandatory threads
254 RtsFlags.GranFlags.GranSimStats.Full = rtsFalse;
255 RtsFlags.GranFlags.GranSimStats.Suppressed = rtsFalse;
256 RtsFlags.GranFlags.GranSimStats.Binary = rtsFalse;
257 RtsFlags.GranFlags.GranSimStats.Sparks = rtsFalse;
258 RtsFlags.GranFlags.GranSimStats.Heap = rtsFalse;
259 RtsFlags.GranFlags.GranSimStats.NewLogfile = rtsFalse;
260 RtsFlags.GranFlags.GranSimStats.Global = rtsFalse;
262 RtsFlags.GranFlags.packBufferSize = 1024;
263 RtsFlags.GranFlags.packBufferSize_internal = GRANSIM_DEFAULT_PACK_BUFFER_SIZE;
265 RtsFlags.GranFlags.proc = MAX_PROC;
266 RtsFlags.GranFlags.Fishing = rtsFalse;
267 RtsFlags.GranFlags.maxFishes = MAX_FISHES;
268 RtsFlags.GranFlags.time_slice = GRAN_TIME_SLICE;
269 RtsFlags.GranFlags.Light = rtsFalse;
271 RtsFlags.GranFlags.Costs.latency = LATENCY;
272 RtsFlags.GranFlags.Costs.additional_latency = ADDITIONAL_LATENCY;
273 RtsFlags.GranFlags.Costs.fetchtime = FETCHTIME;
274 RtsFlags.GranFlags.Costs.lunblocktime = LOCALUNBLOCKTIME;
275 RtsFlags.GranFlags.Costs.gunblocktime = GLOBALUNBLOCKTIME;
276 RtsFlags.GranFlags.Costs.mpacktime = MSGPACKTIME;
277 RtsFlags.GranFlags.Costs.munpacktime = MSGUNPACKTIME;
278 RtsFlags.GranFlags.Costs.mtidytime = MSGTIDYTIME;
280 RtsFlags.GranFlags.Costs.threadcreatetime = THREADCREATETIME;
281 RtsFlags.GranFlags.Costs.threadqueuetime = THREADQUEUETIME;
282 RtsFlags.GranFlags.Costs.threaddescheduletime = THREADDESCHEDULETIME;
283 RtsFlags.GranFlags.Costs.threadscheduletime = THREADSCHEDULETIME;
284 RtsFlags.GranFlags.Costs.threadcontextswitchtime = THREADCONTEXTSWITCHTIME;
286 RtsFlags.GranFlags.Costs.arith_cost = ARITH_COST;
287 RtsFlags.GranFlags.Costs.branch_cost = BRANCH_COST;
288 RtsFlags.GranFlags.Costs.load_cost = LOAD_COST;
289 RtsFlags.GranFlags.Costs.store_cost = STORE_COST;
290 RtsFlags.GranFlags.Costs.float_cost = FLOAT_COST;
292 RtsFlags.GranFlags.Costs.heapalloc_cost = HEAPALLOC_COST;
294 RtsFlags.GranFlags.Costs.pri_spark_overhead = PRI_SPARK_OVERHEAD;
295 RtsFlags.GranFlags.Costs.pri_sched_overhead = PRI_SCHED_OVERHEAD;
297 RtsFlags.GranFlags.DoFairSchedule = rtsFalse;
298 RtsFlags.GranFlags.DoAsyncFetch = rtsFalse;
299 RtsFlags.GranFlags.DoStealThreadsFirst = rtsFalse;
300 RtsFlags.GranFlags.DoAlwaysCreateThreads = rtsFalse;
301 RtsFlags.GranFlags.DoBulkFetching = rtsFalse;
302 RtsFlags.GranFlags.DoThreadMigration = rtsFalse;
303 RtsFlags.GranFlags.FetchStrategy = 2;
304 RtsFlags.GranFlags.PreferSparksOfLocalNodes = rtsFalse;
305 RtsFlags.GranFlags.DoPrioritySparking = rtsFalse;
306 RtsFlags.GranFlags.DoPriorityScheduling = rtsFalse;
307 RtsFlags.GranFlags.SparkPriority = 0;
308 RtsFlags.GranFlags.SparkPriority2 = 0;
309 RtsFlags.GranFlags.RandomPriorities = rtsFalse;
310 RtsFlags.GranFlags.InversePriorities = rtsFalse;
311 RtsFlags.GranFlags.IgnorePriorities = rtsFalse;
312 RtsFlags.GranFlags.ThunksToPack = 0;
313 RtsFlags.GranFlags.RandomSteal = rtsTrue;
317 RtsFlags.TickyFlags.showTickyStats = rtsFalse;
318 RtsFlags.TickyFlags.tickyFile = NULL;
325 "Usage: <prog> <args> [+RTS <rtsopts> | -RTS <args>] ... --RTS <args>",
327 " +RTS Indicates run time system options follow",
328 " -RTS Indicates program arguments follow",
329 " --RTS Indicates that ALL subsequent arguments will be given to the",
330 " program (including any of these RTS flags)",
332 "The following run time system options are available:",
334 " -? Prints this message and exits; the program is not executed",
336 " -K<size> Sets the maximum stack size (default 8M) Egs: -K32k -K512k",
337 " -k<size> Sets the initial thread stack size (default 1k) Egs: -k4k -k2m",
339 " -A<size> Sets the minimum allocation area size (default 256k) Egs: -A1m -A10k",
340 " -M<size> Sets the maximum heap size (default unlimited) Egs: -M256k -M1G",
341 " -H<size> Sets the minimum heap size (default 0M) Egs: -H24m -H1G",
342 " -m<n> Minimum % of heap which must be available (default 3%)",
343 " -G<n> Number of generations (default: 2)",
344 " -T<n> Number of steps in younger generations (default: 2)",
345 " -c<n> Auto-enable compaction of the oldest generation when live data is",
346 " at least <n>% of the maximum heap size set with -M (default: 30%)",
347 " -c Enable compaction for all major collections",
349 " -t<file> One-line GC statistics (default file: <program>.stat)",
350 " -s<file> Summary GC statistics (with -Sstderr going to stderr)",
351 " -S<file> Detailed GC statistics",
352 #ifdef RTS_GTK_FRONTPANEL
353 " -f Display front panel (requires X11 & GTK+)",
357 " -Z Don't squeeze out update frames on stack overflow",
358 " -B Sound the bell at the start of each garbage collection",
359 #if defined(PROFILING) || defined(PAR)
361 " -px Time/allocation profile (XML) (output file <program>.prof)",
362 " -p Time/allocation profile (output file <program>.prof)",
363 " -P More detailed Time/Allocation profile",
364 " -Pa Give information about *all* cost centres",
366 # if defined(PROFILING)
368 " -hx Heap residency profile (XML) (output file <program>.prof)",
369 " -h<break-down> Heap residency profile (hp2ps) (output file <program>.hp)",
370 " break-down: c = cost centre stack (default)",
372 " d = closure description",
373 " y = type description",
375 " b = biography (LAG,DRAG,VOID,USE)",
376 " A subset of closures may be selected thusly:",
377 " -hc<cc>,... specific cost centre(s) (top of stack only)",
378 " -hC<cc>,... specific cost centre(s) (anywhere in stack)",
379 " -hm<mod>... all cost centres from the specified modules(s)",
380 " -hd<des>,... closures with specified closure descriptions",
381 " -hy<typ>... closures with specified type descriptions",
382 " -hr<cc>... closures with specified retainers",
383 " -hb<bio>... closures with specified biographies (lag,drag,void,use)",
385 " -R<size> Set the maximum retainer set size (default: 8)",
387 " -i<sec> Time between heap samples (seconds, default: 0.1)",
389 " -xt Include threads (TSOs) in a heap profile",
391 " -xc Show current cost centre stack on raising an exception",
393 #endif /* PROFILING or PAR */
394 #if !defined(PROFILING) && defined(DEBUG)
396 " -h<break-down> Debugging Heap residency profile",
397 " (output file <program>.hp)",
398 " break-down: L = closure label (default)",
399 " T = closure type (constructor, thunk etc.)",
402 #if defined(TICKY_TICKY)
403 " -r<file> Produce reduction profiling statistics (with -rstderr for stderr)",
407 " -N<n> Use <n> PVMish processors in parallel (default: 2)",
408 /* NB: the -N<n> is implemented by the driver!! */
410 " -C<secs> Context-switch interval in seconds",
411 " (0 or no argument means switch as often as possible)",
412 " the default is .02 sec; resolution is .02 sec",
415 " -Ds DEBUG: scheduler",
416 " -Di DEBUG: interpreter",
417 " -Dc DEBUG: codegen",
419 " -DG DEBUG: gccafs",
422 " -DS DEBUG: sanity",
423 " -Dt DEBUG: stable",
427 " -Dl DEBUG: linker",
431 " -N<n> Use <n> OS threads (default: 1)",
433 #if defined(SMP) || defined(PAR)
434 " -e<size> Size of spark pools (default 100)",
437 " -t<num> Set maximum number of advisory threads per PE (default 32)",
438 " -qP Enable activity profile (output files in ~/<program>*.gr)",
439 " -qQ<size> Set pack-buffer size (default: 1024)",
440 " -qd Turn on PVM-ish debugging",
441 " -qO Disable output for performance measurement",
443 #if defined(SMP) || defined(PAR)
444 " -e<n> Maximum number of outstanding local sparks (default: 4096)",
447 " -d Turn on PVM-ish debugging",
448 " -O Disable output for performance measurement",
450 #if defined(GRAN) /* ToDo: fill in decent Docu here */
451 " -b... All GranSim options start with -b; see GranSim User's Guide for details",
454 "RTS options may also be specified using the GHCRTS environment variable.",
456 "Other RTS options may be available for programs compiled a different way.",
457 "The GHC User's Guide has full details.",
462 STATIC_INLINE rtsBool
463 strequal(const char *a, const char * b)
465 return(strcmp(a, b) == 0);
469 splitRtsFlags(char *s, int *rts_argc, char *rts_argv[])
475 while (isspace(*c1)) { c1++; };
477 while (!isspace(*c2) && *c2 != '\0') { c2++; };
479 if (c1 == c2) { break; }
481 if (*rts_argc < MAX_RTS_ARGS-1) {
482 s = stgMallocBytes(c2-c1+1, "RtsFlags.c:splitRtsFlags()");
483 strncpy(s, c1, c2-c1);
485 rts_argv[(*rts_argc)++] = s;
487 barf("too many RTS arguments (max %d)", MAX_RTS_ARGS-1);
491 } while (*c1 != '\0');
495 setupRtsFlags(int *argc, char *argv[], int *rts_argc, char *rts_argv[])
497 rtsBool error = rtsFalse;
502 /* Remove directory from argv[0] -- default files in current directory */
503 if ((last_slash = (char *) strrchr(argv[0],
504 #if !defined(mingw32_TARGET_OS)
510 prog_name = last_slash+1;
521 // process arguments from the ghc_rts_opts global variable first.
522 // (arguments from the GHCRTS environment variable and the command
523 // line override these).
525 if (ghc_rts_opts != NULL) {
526 splitRtsFlags(ghc_rts_opts, rts_argc, rts_argv);
530 // process arguments from the GHCRTS environment variable next
531 // (arguments from the command line override these).
533 char *ghc_rts = getenv("GHCRTS");
535 if (ghc_rts != NULL) {
536 splitRtsFlags(ghc_rts, rts_argc, rts_argv);
540 // Split arguments (argv) into PGM (argv) and RTS (rts_argv) parts
541 // argv[0] must be PGM argument -- leave in argv
543 for (mode = PGM; arg < total_arg; arg++) {
544 // The '--RTS' argument disables all future +RTS ... -RTS processing.
545 if (strequal("--RTS", argv[arg])) {
549 // The '--' argument is passed through to the program, but
550 // disables all further +RTS ... -RTS processing.
551 else if (strequal("--", argv[arg])) {
554 else if (strequal("+RTS", argv[arg])) {
557 else if (strequal("-RTS", argv[arg])) {
560 else if (mode == RTS && *rts_argc < MAX_RTS_ARGS-1) {
561 rts_argv[(*rts_argc)++] = argv[arg];
563 else if (mode == PGM) {
564 argv[(*argc)++] = argv[arg];
567 barf("too many RTS arguments (max %d)", MAX_RTS_ARGS-1);
570 // process remaining program arguments
571 for (; arg < total_arg; arg++) {
572 argv[(*argc)++] = argv[arg];
574 argv[*argc] = (char *) 0;
575 rts_argv[*rts_argc] = (char *) 0;
577 // Process RTS (rts_argv) part: mainly to determine statsfile
578 for (arg = 0; arg < *rts_argc; arg++) {
579 if (rts_argv[arg][0] != '-') {
581 errorBelch("unexpected RTS argument: %s", rts_argv[arg]);
585 switch(rts_argv[arg][1]) {
587 /* process: general args, then PROFILING-only ones,
588 then CONCURRENT-only, PARallel-only, GRAN-only,
589 TICKY-only (same order as defined in RtsFlags.lh);
590 within those groups, mostly in case-insensitive
592 Final group is x*, which allows for more options.
596 # define TICKY_BUILD_ONLY(x) x
598 # define TICKY_BUILD_ONLY(x) \
599 errorBelch("not built for: ticky-ticky stats"); \
603 #if defined(PROFILING)
604 # define COST_CENTRE_USING_BUILD_ONLY(x) x
606 # define COST_CENTRE_USING_BUILD_ONLY(x) \
607 errorBelch("not built for: -prof or -parallel"); \
612 # define PROFILING_BUILD_ONLY(x) x
614 # define PROFILING_BUILD_ONLY(x) \
615 errorBelch("not built for: -prof"); \
620 # define SMP_BUILD_ONLY(x) x
622 # define SMP_BUILD_ONLY(x) \
623 errorBelch("not built for: -smp"); \
628 # define PAR_BUILD_ONLY(x) x
630 # define PAR_BUILD_ONLY(x) \
631 errorBelch("not built for: -parallel"); \
635 #if defined(SMP) || defined(PAR)
636 # define PAR_OR_SMP_BUILD_ONLY(x) x
638 # define PAR_OR_SMP_BUILD_ONLY(x) \
639 errorBelch("not built for: -parallel or -smp"); \
644 # define GRAN_BUILD_ONLY(x) x
646 # define GRAN_BUILD_ONLY(x) \
647 errorBelch("not built for: -gransim"); \
651 /* =========== GENERAL ========================== */
657 RtsFlags.GcFlags.minAllocAreaSize
658 = decode(rts_argv[arg]+2) / BLOCK_SIZE;
659 if (RtsFlags.GcFlags.minAllocAreaSize <= 0) {
660 bad_option(rts_argv[arg]);
665 RtsFlags.GcFlags.ringBell = rtsTrue;
669 if (rts_argv[arg][2] != '\0') {
670 RtsFlags.GcFlags.compactThreshold =
671 atof(rts_argv[arg]+2);
673 RtsFlags.GcFlags.compact = rtsTrue;
678 RtsFlags.GcFlags.oldGenFactor = atof(rts_argv[arg]+2);
680 if (RtsFlags.GcFlags.oldGenFactor < 0)
681 bad_option( rts_argv[arg] );
689 for (c = rts_argv[arg] + 2; *c != '\0'; c++) {
692 RtsFlags.DebugFlags.scheduler = rtsTrue;
695 RtsFlags.DebugFlags.interpreter = rtsTrue;
698 RtsFlags.DebugFlags.codegen = rtsTrue;
701 RtsFlags.DebugFlags.weak = rtsTrue;
704 RtsFlags.DebugFlags.gccafs = rtsTrue;
707 RtsFlags.DebugFlags.gc = rtsTrue;
710 RtsFlags.DebugFlags.block_alloc = rtsTrue;
713 RtsFlags.DebugFlags.sanity = rtsTrue;
716 RtsFlags.DebugFlags.stable = rtsTrue;
719 RtsFlags.DebugFlags.prof = rtsTrue;
722 RtsFlags.DebugFlags.gran = rtsTrue;
725 RtsFlags.DebugFlags.par = rtsTrue;
728 RtsFlags.DebugFlags.linker = rtsTrue;
731 RtsFlags.DebugFlags.apply = rtsTrue;
734 bad_option( rts_argv[arg] );
742 RtsFlags.GcFlags.maxStkSize =
743 decode(rts_argv[arg]+2) / sizeof(W_);
745 if (RtsFlags.GcFlags.maxStkSize == 0)
746 bad_option( rts_argv[arg] );
750 RtsFlags.GcFlags.initialStkSize =
751 decode(rts_argv[arg]+2) / sizeof(W_);
753 if (RtsFlags.GcFlags.initialStkSize == 0)
754 bad_option( rts_argv[arg] );
758 RtsFlags.GcFlags.maxHeapSize =
759 decode(rts_argv[arg]+2) / BLOCK_SIZE;
760 /* user give size in *bytes* but "maxHeapSize" is in *blocks* */
762 if (RtsFlags.GcFlags.maxHeapSize <= 0) {
763 bad_option(rts_argv[arg]);
768 RtsFlags.GcFlags.pcFreeHeap = atof(rts_argv[arg]+2);
770 if (RtsFlags.GcFlags.pcFreeHeap < 0 ||
771 RtsFlags.GcFlags.pcFreeHeap > 100)
772 bad_option( rts_argv[arg] );
776 RtsFlags.GcFlags.generations = decode(rts_argv[arg]+2);
777 if (RtsFlags.GcFlags.generations < 1) {
778 bad_option(rts_argv[arg]);
783 RtsFlags.GcFlags.steps = decode(rts_argv[arg]+2);
784 if (RtsFlags.GcFlags.steps < 1) {
785 bad_option(rts_argv[arg]);
790 RtsFlags.GcFlags.heapSizeSuggestion =
791 decode(rts_argv[arg]+2) / BLOCK_SIZE;
793 if (RtsFlags.GcFlags.heapSizeSuggestion <= 0) {
794 bad_option(rts_argv[arg]);
798 #ifdef RTS_GTK_FRONTPANEL
800 RtsFlags.GcFlags.frontpanel = rtsTrue;
805 RtsFlags.GcFlags.giveStats = VERBOSE_GC_STATS;
809 RtsFlags.GcFlags.giveStats = SUMMARY_GC_STATS;
813 RtsFlags.GcFlags.giveStats = ONELINE_GC_STATS;
818 /* Opening all those files would almost certainly fail... */
819 // RtsFlags.ParFlags.ParStats.Full = rtsTrue;
820 RtsFlags.GcFlags.statsFile = NULL; /* temporary; ToDo: rm */
824 r = open_stats_file(arg, *argc, argv,
825 *rts_argc, rts_argv, STAT_FILENAME_FMT,
826 &RtsFlags.GcFlags.statsFile);
827 if (r == -1) { error = rtsTrue; }
833 RtsFlags.GcFlags.squeezeUpdFrames = rtsFalse;
836 /* =========== PROFILING ========================== */
838 case 'P': /* detailed cost centre profiling (time/alloc) */
839 case 'p': /* cost centre profiling (time/alloc) */
840 COST_CENTRE_USING_BUILD_ONLY(
841 switch (rts_argv[arg][2]) {
843 RtsFlags.CcFlags.doCostCentres = COST_CENTRES_XML;
846 RtsFlags.CcFlags.doCostCentres = COST_CENTRES_ALL;
849 if (rts_argv[arg][1] == 'P') {
850 RtsFlags.CcFlags.doCostCentres =
851 COST_CENTRES_VERBOSE;
853 RtsFlags.CcFlags.doCostCentres =
854 COST_CENTRES_SUMMARY;
861 PROFILING_BUILD_ONLY(
862 RtsFlags.ProfFlags.maxRetainerSetSize = atof(rts_argv[arg]+2);
865 case 'h': /* serial heap profile */
866 #if !defined(PROFILING) && defined(DEBUG)
867 switch (rts_argv[arg][2]) {
870 RtsFlags.ProfFlags.doHeapProfile = HEAP_BY_INFOPTR;
873 RtsFlags.ProfFlags.doHeapProfile = HEAP_BY_CLOSURE_TYPE;
876 errorBelch("invalid heap profile option: %s",rts_argv[arg]);
880 PROFILING_BUILD_ONLY(
881 switch (rts_argv[arg][2]) {
895 if (rts_argv[arg][2] != '\0' && rts_argv[arg][3] != '\0') {
897 char *left = strchr(rts_argv[arg], '{');
898 char *right = strrchr(rts_argv[arg], '}');
900 // curly braces are optional, for
905 left = rts_argv[arg] + 3;
908 right = rts_argv[arg] + strlen(rts_argv[arg]);
912 switch (rts_argv[arg][2]) {
913 case 'c': // cost centre label select
914 RtsFlags.ProfFlags.ccSelector = left;
917 RtsFlags.ProfFlags.ccsSelector = left;
920 case 'm': // cost centre module select
921 RtsFlags.ProfFlags.modSelector = left;
924 case 'd': // closure descr select
925 RtsFlags.ProfFlags.descrSelector = left;
928 case 'y': // closure type select
929 RtsFlags.ProfFlags.typeSelector = left;
932 case 'r': // retainer select
933 RtsFlags.ProfFlags.retainerSelector = left;
936 case 'b': // biography select
937 RtsFlags.ProfFlags.bioSelector = left;
944 if (RtsFlags.ProfFlags.doHeapProfile != 0) {
945 errorBelch("multiple heap profile options");
950 switch (rts_argv[arg][2]) {
954 RtsFlags.ProfFlags.doHeapProfile = HEAP_BY_CCS;
958 RtsFlags.ProfFlags.doHeapProfile = HEAP_BY_MOD;
962 RtsFlags.ProfFlags.doHeapProfile = HEAP_BY_DESCR;
966 RtsFlags.ProfFlags.doHeapProfile = HEAP_BY_TYPE;
970 RtsFlags.ProfFlags.doHeapProfile = HEAP_BY_RETAINER;
974 RtsFlags.ProfFlags.doHeapProfile = HEAP_BY_LDV;
980 errorBelch("invalid heap profile option: %s",rts_argv[arg]);
987 #if defined(PROFILING)
988 case 'i': /* heap sample interval */
989 if (rts_argv[arg][2] == '\0') {
994 /* Convert to milliseconds */
995 cst = (I_) ((atof(rts_argv[arg]+2) * 1000));
996 cst = (cst / CS_MIN_MILLISECS) * CS_MIN_MILLISECS;
997 if (cst != 0 && cst < CS_MIN_MILLISECS)
998 cst = CS_MIN_MILLISECS;
1000 RtsFlags.ProfFlags.profileInterval = cst;
1005 /* =========== CONCURRENT ========================= */
1006 case 'C': /* context switch interval */
1007 if (rts_argv[arg][2] == '\0')
1008 RtsFlags.ConcFlags.ctxtSwitchTime = 0;
1012 /* Convert to milliseconds */
1013 cst = (I_) ((atof(rts_argv[arg]+2) * 1000));
1014 cst = (cst / CS_MIN_MILLISECS) * CS_MIN_MILLISECS;
1015 if (cst != 0 && cst < CS_MIN_MILLISECS)
1016 cst = CS_MIN_MILLISECS;
1018 RtsFlags.ConcFlags.ctxtSwitchTime = cst;
1025 if (rts_argv[arg][2] != '\0') {
1026 RtsFlags.ParFlags.nNodes
1027 = strtol(rts_argv[arg]+2, (char **) NULL, 10);
1028 if (RtsFlags.ParFlags.nNodes <= 0) {
1029 errorBelch("bad value for -N");
1035 /* =========== PARALLEL =========================== */
1037 PAR_OR_SMP_BUILD_ONLY(
1038 if (rts_argv[arg][2] != '\0') {
1039 RtsFlags.ParFlags.maxLocalSparks
1040 = strtol(rts_argv[arg]+2, (char **) NULL, 10);
1041 if (RtsFlags.ParFlags.maxLocalSparks <= 0) {
1042 errorBelch("bad value for -e");
1050 process_par_option(arg, rts_argc, rts_argv, &error);
1053 /* =========== GRAN =============================== */
1057 process_gran_option(arg, rts_argc, rts_argv, &error);
1060 /* =========== TICKY ============================== */
1062 case 'r': /* Basic profiling stats */
1065 RtsFlags.TickyFlags.showTickyStats = rtsTrue;
1069 r = open_stats_file(arg, *argc, argv,
1070 *rts_argc, rts_argv, TICKY_FILENAME_FMT,
1071 &RtsFlags.TickyFlags.tickyFile);
1072 if (r == -1) { error = rtsTrue; }
1076 /* =========== EXTENDED OPTIONS =================== */
1078 case 'x': /* Extend the argument space */
1079 switch(rts_argv[arg][2]) {
1081 errorBelch("incomplete RTS option: %s",rts_argv[arg]);
1085 case 'c': /* Debugging tool: show current cost centre on an exception */
1086 PROFILING_BUILD_ONLY(
1087 RtsFlags.ProfFlags.showCCSOnException = rtsTrue;
1091 case 't': /* Include memory used by TSOs in a heap profile */
1092 PROFILING_BUILD_ONLY(
1093 RtsFlags.ProfFlags.includeTSOs = rtsTrue;
1097 /* The option prefix '-xx' is reserved for future extension. KSW 1999-11. */
1100 errorBelch("unknown RTS option: %s",rts_argv[arg]);
1104 break; /* defensive programming */
1106 /* =========== OH DEAR ============================ */
1108 errorBelch("unknown RTS option: %s",rts_argv[arg]);
1118 for (p = usage_text; *p; p++)
1119 errorBelch("%s", *p);
1120 stg_exit(EXIT_FAILURE);
1126 //@node GranSim specific options, Aux fcts, Command-line option parsing routines
1127 //@subsection GranSim specific options
1130 enable_GranSimLight(void) {
1132 debugBelch("GrAnSim Light enabled (infinite number of processors; 0 communication costs)\n");
1133 RtsFlags.GranFlags.Light=rtsTrue;
1134 RtsFlags.GranFlags.Costs.latency =
1135 RtsFlags.GranFlags.Costs.fetchtime =
1136 RtsFlags.GranFlags.Costs.additional_latency =
1137 RtsFlags.GranFlags.Costs.gunblocktime =
1138 RtsFlags.GranFlags.Costs.lunblocktime =
1139 RtsFlags.GranFlags.Costs.threadcreatetime =
1140 RtsFlags.GranFlags.Costs.threadqueuetime =
1141 RtsFlags.GranFlags.Costs.threadscheduletime =
1142 RtsFlags.GranFlags.Costs.threaddescheduletime =
1143 RtsFlags.GranFlags.Costs.threadcontextswitchtime = 0;
1145 RtsFlags.GranFlags.Costs.mpacktime =
1146 RtsFlags.GranFlags.Costs.munpacktime = 0;
1148 RtsFlags.GranFlags.DoFairSchedule = rtsTrue;
1149 RtsFlags.GranFlags.DoAsyncFetch = rtsFalse;
1150 RtsFlags.GranFlags.DoAlwaysCreateThreads = rtsTrue;
1151 /* FetchStrategy is irrelevant in GrAnSim-Light */
1153 /* GrAnSim Light often creates an abundance of parallel threads,
1154 each with its own stack etc. Therefore, it's in general a good
1155 idea to use small stack chunks (use the -o<size> option to
1158 // RtsFlags.ConcFlags.stkChunkSize = 100;
1160 RtsFlags.GranFlags.proc = 1;
1164 process_gran_option(int arg, int *rts_argc, char *rts_argv[], rtsBool *error)
1166 if (rts_argv[arg][1] != 'b') /* All GranSim options start with -b */
1169 /* or a ridiculously idealised simulator */
1170 if(strcmp((rts_argv[arg]+2),"oring")==0) {
1171 RtsFlags.GranFlags.Costs.latency =
1172 RtsFlags.GranFlags.Costs.fetchtime =
1173 RtsFlags.GranFlags.Costs.additional_latency =
1174 RtsFlags.GranFlags.Costs.gunblocktime =
1175 RtsFlags.GranFlags.Costs.lunblocktime =
1176 RtsFlags.GranFlags.Costs.threadcreatetime =
1177 RtsFlags.GranFlags.Costs.threadqueuetime =
1178 RtsFlags.GranFlags.Costs.threadscheduletime =
1179 RtsFlags.GranFlags.Costs.threaddescheduletime =
1180 RtsFlags.GranFlags.Costs.threadcontextswitchtime = 0;
1182 RtsFlags.GranFlags.Costs.mpacktime =
1183 RtsFlags.GranFlags.Costs.munpacktime = 0;
1185 RtsFlags.GranFlags.Costs.arith_cost =
1186 RtsFlags.GranFlags.Costs.float_cost =
1187 RtsFlags.GranFlags.Costs.load_cost =
1188 RtsFlags.GranFlags.Costs.store_cost =
1189 RtsFlags.GranFlags.Costs.branch_cost = 0;
1191 RtsFlags.GranFlags.Costs.heapalloc_cost = 1;
1193 /* ++RtsFlags.GranFlags.DoFairSchedule; */
1194 RtsFlags.GranFlags.DoStealThreadsFirst = rtsTrue; /* -bZ */
1195 RtsFlags.GranFlags.DoThreadMigration = rtsTrue; /* -bM */
1196 RtsFlags.GranFlags.GranSimStats.Full = rtsTrue; /* -bP */
1200 /* or a somewhat idealised simulator */
1201 if(strcmp((rts_argv[arg]+2),"onzo")==0) {
1202 RtsFlags.GranFlags.Costs.latency =
1203 RtsFlags.GranFlags.Costs.fetchtime =
1204 RtsFlags.GranFlags.Costs.additional_latency =
1205 RtsFlags.GranFlags.Costs.gunblocktime =
1206 RtsFlags.GranFlags.Costs.lunblocktime =
1207 RtsFlags.GranFlags.Costs.threadcreatetime =
1208 RtsFlags.GranFlags.Costs.threadqueuetime =
1209 RtsFlags.GranFlags.Costs.threadscheduletime =
1210 RtsFlags.GranFlags.Costs.threaddescheduletime =
1211 RtsFlags.GranFlags.Costs.threadcontextswitchtime = 0;
1213 RtsFlags.GranFlags.Costs.mpacktime =
1214 RtsFlags.GranFlags.Costs.munpacktime = 0;
1216 RtsFlags.GranFlags.Costs.heapalloc_cost = 1;
1218 /* RtsFlags.GranFlags.DoFairSchedule = rtsTrue; */ /* -b-R */
1219 /* RtsFlags.GranFlags.DoStealThreadsFirst = rtsTrue; */ /* -b-T */
1220 RtsFlags.GranFlags.DoAsyncFetch = rtsTrue; /* -bZ */
1221 RtsFlags.GranFlags.DoThreadMigration = rtsTrue; /* -bM */
1222 RtsFlags.GranFlags.GranSimStats.Full = rtsTrue; /* -bP */
1223 # if defined(GRAN_CHECK) && defined(GRAN)
1224 RtsFlags.GranFlags.Debug.event_stats = rtsTrue; /* print event statistics */
1229 /* Communication and task creation cost parameters */
1230 switch(rts_argv[arg][2]) {
1232 IgnoreYields = rtsTrue; // HWL HACK
1236 enable_GranSimLight(); /* set flags for GrAnSim-Light mode */
1240 if (rts_argv[arg][3] != '\0')
1242 RtsFlags.GranFlags.Costs.gunblocktime =
1243 RtsFlags.GranFlags.Costs.latency = decode(rts_argv[arg]+3);
1244 RtsFlags.GranFlags.Costs.fetchtime = 2*RtsFlags.GranFlags.Costs.latency;
1247 RtsFlags.GranFlags.Costs.latency = LATENCY;
1251 if (rts_argv[arg][3] != '\0')
1252 RtsFlags.GranFlags.Costs.additional_latency = decode(rts_argv[arg]+3);
1254 RtsFlags.GranFlags.Costs.additional_latency = ADDITIONAL_LATENCY;
1258 if (rts_argv[arg][3] != '\0')
1259 RtsFlags.GranFlags.Costs.mpacktime = decode(rts_argv[arg]+3);
1261 RtsFlags.GranFlags.Costs.mpacktime = MSGPACKTIME;
1265 if (rts_argv[arg][3] != '\0')
1266 RtsFlags.GranFlags.Costs.mtidytime = decode(rts_argv[arg]+3);
1268 RtsFlags.GranFlags.Costs.mtidytime = 0;
1272 if (rts_argv[arg][3] != '\0')
1273 RtsFlags.GranFlags.Costs.munpacktime = decode(rts_argv[arg]+3);
1275 RtsFlags.GranFlags.Costs.munpacktime = MSGUNPACKTIME;
1279 if (rts_argv[arg][3] != '\0')
1280 RtsFlags.GranFlags.Costs.fetchtime = decode(rts_argv[arg]+3);
1282 RtsFlags.GranFlags.Costs.fetchtime = FETCHTIME;
1286 if (rts_argv[arg][3] != '\0')
1287 RtsFlags.GranFlags.Costs.gunblocktime = decode(rts_argv[arg]+3);
1289 RtsFlags.GranFlags.Costs.gunblocktime = GLOBALUNBLOCKTIME;
1293 if (rts_argv[arg][3] != '\0')
1294 RtsFlags.GranFlags.Costs.lunblocktime = decode(rts_argv[arg]+3);
1296 RtsFlags.GranFlags.Costs.lunblocktime = LOCALUNBLOCKTIME;
1299 /* Thread-related metrics */
1301 if (rts_argv[arg][3] != '\0')
1302 RtsFlags.GranFlags.Costs.threadcreatetime = decode(rts_argv[arg]+3);
1304 RtsFlags.GranFlags.Costs.threadcreatetime = THREADCREATETIME;
1308 if (rts_argv[arg][3] != '\0')
1309 RtsFlags.GranFlags.Costs.threadqueuetime = decode(rts_argv[arg]+3);
1311 RtsFlags.GranFlags.Costs.threadqueuetime = THREADQUEUETIME;
1315 if (rts_argv[arg][3] != '\0')
1316 RtsFlags.GranFlags.Costs.threadscheduletime = decode(rts_argv[arg]+3);
1318 RtsFlags.GranFlags.Costs.threadscheduletime = THREADSCHEDULETIME;
1320 RtsFlags.GranFlags.Costs.threadcontextswitchtime = RtsFlags.GranFlags.Costs.threadscheduletime
1321 + RtsFlags.GranFlags.Costs.threaddescheduletime;
1325 if (rts_argv[arg][3] != '\0')
1326 RtsFlags.GranFlags.Costs.threaddescheduletime = decode(rts_argv[arg]+3);
1328 RtsFlags.GranFlags.Costs.threaddescheduletime = THREADDESCHEDULETIME;
1330 RtsFlags.GranFlags.Costs.threadcontextswitchtime = RtsFlags.GranFlags.Costs.threadscheduletime
1331 + RtsFlags.GranFlags.Costs.threaddescheduletime;
1334 /* Instruction Cost Metrics */
1336 if (rts_argv[arg][3] != '\0')
1337 RtsFlags.GranFlags.Costs.arith_cost = decode(rts_argv[arg]+3);
1339 RtsFlags.GranFlags.Costs.arith_cost = ARITH_COST;
1343 if (rts_argv[arg][3] != '\0')
1344 RtsFlags.GranFlags.Costs.float_cost = decode(rts_argv[arg]+3);
1346 RtsFlags.GranFlags.Costs.float_cost = FLOAT_COST;
1350 if (rts_argv[arg][3] != '\0')
1351 RtsFlags.GranFlags.Costs.branch_cost = decode(rts_argv[arg]+3);
1353 RtsFlags.GranFlags.Costs.branch_cost = BRANCH_COST;
1357 if (rts_argv[arg][3] != '\0')
1358 RtsFlags.GranFlags.Costs.load_cost = decode(rts_argv[arg]+3);
1360 RtsFlags.GranFlags.Costs.load_cost = LOAD_COST;
1364 if (rts_argv[arg][3] != '\0')
1365 RtsFlags.GranFlags.Costs.store_cost = decode(rts_argv[arg]+3);
1367 RtsFlags.GranFlags.Costs.store_cost = STORE_COST;
1371 if (rts_argv[arg][3] != '\0')
1372 RtsFlags.GranFlags.Costs.heapalloc_cost = decode(rts_argv[arg]+3);
1374 RtsFlags.GranFlags.Costs.heapalloc_cost = 0;
1378 RtsFlags.GranFlags.DoAsyncFetch = rtsTrue;
1379 if (rts_argv[arg][3] != '\0')
1380 RtsFlags.GranFlags.FetchStrategy = decode(rts_argv[arg]+3);
1382 RtsFlags.GranFlags.FetchStrategy = 2;
1383 if (RtsFlags.GranFlags.FetchStrategy == 0)
1384 RtsFlags.GranFlags.DoAsyncFetch = rtsFalse;
1387 case 'K': /* sort overhead (per elem in spark list) */
1388 if (rts_argv[arg][3] != '\0')
1389 RtsFlags.GranFlags.Costs.pri_spark_overhead = decode(rts_argv[arg]+3);
1391 RtsFlags.GranFlags.Costs.pri_spark_overhead = PRI_SPARK_OVERHEAD;
1392 debugBelch("Overhead for pri spark: %d (per elem).\n",
1393 RtsFlags.GranFlags.Costs.pri_spark_overhead);
1396 case 'O': /* sort overhead (per elem in spark list) */
1397 if (rts_argv[arg][3] != '\0')
1398 RtsFlags.GranFlags.Costs.pri_sched_overhead = decode(rts_argv[arg]+3);
1400 RtsFlags.GranFlags.Costs.pri_sched_overhead = PRI_SCHED_OVERHEAD;
1401 debugBelch("Overhead for pri sched: %d (per elem).\n",
1402 RtsFlags.GranFlags.Costs.pri_sched_overhead);
1405 /* General Parameters */
1407 if (rts_argv[arg][3] != '\0')
1409 RtsFlags.GranFlags.proc = decode(rts_argv[arg]+3);
1410 if (RtsFlags.GranFlags.proc==0) {
1411 enable_GranSimLight(); /* set flags for GrAnSim-Light mode */
1412 } else if (RtsFlags.GranFlags.proc > MAX_PROC ||
1413 RtsFlags.GranFlags.proc < 1)
1415 debugBelch("setupRtsFlags: no more than %u processors allowed\n",
1421 RtsFlags.GranFlags.proc = MAX_PROC;
1425 RtsFlags.GranFlags.Fishing = rtsTrue;
1426 if (rts_argv[arg][3] != '\0')
1427 RtsFlags.GranFlags.maxFishes = decode(rts_argv[arg]+3);
1429 RtsFlags.GranFlags.maxFishes = MAX_FISHES;
1433 if (rts_argv[arg][3] != '\0')
1434 RtsFlags.GranFlags.time_slice = decode(rts_argv[arg]+3);
1436 RtsFlags.GranFlags.time_slice = GRAN_TIME_SLICE;
1440 RtsFlags.GranFlags.DoAlwaysCreateThreads=rtsTrue;
1441 RtsFlags.GranFlags.DoThreadMigration=rtsTrue;
1445 debugBelch("Bulk fetching enabled.\n");
1446 RtsFlags.GranFlags.DoBulkFetching=rtsTrue;
1450 debugBelch("Thread migration enabled.\n");
1451 RtsFlags.GranFlags.DoThreadMigration=rtsTrue;
1455 debugBelch("Fair Scheduling enabled.\n");
1456 RtsFlags.GranFlags.DoFairSchedule=rtsTrue;
1460 debugBelch("Priority Scheduling enabled.\n");
1461 RtsFlags.GranFlags.DoPriorityScheduling=rtsTrue;
1465 RtsFlags.GranFlags.DoStealThreadsFirst=rtsTrue;
1466 RtsFlags.GranFlags.DoThreadMigration=rtsTrue;
1470 RtsFlags.GranFlags.DoAsyncFetch=rtsTrue;
1474 /* RtsFlags.GranFlags.SimplifiedFetch=rtsTrue; */
1478 RtsFlags.GranFlags.PreferSparksOfLocalNodes=rtsTrue;
1482 RtsFlags.GranFlags.GranSimStats.Binary=rtsTrue;
1486 /* format is -bP<c> where <c> is one char describing kind of profile */
1487 RtsFlags.GranFlags.GranSimStats.Full = rtsTrue;
1488 switch(rts_argv[arg][3]) {
1489 case '\0': break; // nothing special, just an ordinary profile
1490 case '0': RtsFlags.GranFlags.GranSimStats.Suppressed = rtsTrue;
1492 case 'b': RtsFlags.GranFlags.GranSimStats.Binary = rtsTrue;
1494 case 's': RtsFlags.GranFlags.GranSimStats.Sparks = rtsTrue;
1496 case 'h': RtsFlags.GranFlags.GranSimStats.Heap = rtsTrue;
1498 case 'n': RtsFlags.GranFlags.GranSimStats.NewLogfile = rtsTrue;
1500 case 'g': RtsFlags.GranFlags.GranSimStats.Global = rtsTrue;
1502 default: barf("Unknown option -bP%c", rts_argv[arg][3]);
1507 RtsFlags.GranFlags.GranSimStats.Sparks=rtsTrue;
1511 RtsFlags.GranFlags.GranSimStats.Heap=rtsTrue;
1514 case 'Y': /* syntax: -bY<n>[,<n>] n ... pos int */
1515 if (rts_argv[arg][3] != '\0') {
1518 arg0 = rts_argv[arg]+3;
1519 if ((tmp = strstr(arg0,","))==NULL) {
1520 RtsFlags.GranFlags.SparkPriority = decode(arg0);
1521 debugBelch("SparkPriority: %u.\n",RtsFlags.GranFlags.SparkPriority);
1524 RtsFlags.GranFlags.SparkPriority = decode(arg0);
1525 RtsFlags.GranFlags.SparkPriority2 = decode(tmp);
1526 debugBelch("SparkPriority: %u.\n",
1527 RtsFlags.GranFlags.SparkPriority);
1528 debugBelch("SparkPriority2:%u.\n",
1529 RtsFlags.GranFlags.SparkPriority2);
1530 if (RtsFlags.GranFlags.SparkPriority2 <
1531 RtsFlags.GranFlags.SparkPriority) {
1532 debugBelch("WARNING: 2nd pri < main pri (%u<%u); 2nd pri has no effect\n",
1533 RtsFlags.GranFlags.SparkPriority2,
1534 RtsFlags.GranFlags.SparkPriority);
1538 /* plain pri spark is now invoked with -bX
1539 RtsFlags.GranFlags.DoPrioritySparking = 1;
1540 debugBelch("PrioritySparking.\n");
1546 if (rts_argv[arg][3] != '\0') {
1547 RtsFlags.GranFlags.ThunksToPack = decode(rts_argv[arg]+3);
1549 RtsFlags.GranFlags.ThunksToPack = 1;
1551 debugBelch("Thunks To Pack in one packet: %u.\n",
1552 RtsFlags.GranFlags.ThunksToPack);
1556 RtsFlags.GranFlags.RandomSteal = rtsFalse;
1557 debugBelch("Deterministic mode (no random stealing)\n");
1560 /* The following class of options contains eXperimental */
1561 /* features in connection with exploiting granularity */
1562 /* information. I.e. if -bY is chosen these options */
1563 /* tell the RTS what to do with the supplied info --HWL */
1566 if (rts_argv[arg][3] != '\0') {
1567 RtsFlags.GranFlags.packBufferSize_internal = decode(rts_argv[arg]+3);
1569 RtsFlags.GranFlags.packBufferSize_internal = GRANSIM_DEFAULT_PACK_BUFFER_SIZE;
1571 debugBelch("Size of GranSim internal pack buffer: %u.\n",
1572 RtsFlags.GranFlags.packBufferSize_internal);
1576 switch(rts_argv[arg][3]) {
1579 RtsFlags.GranFlags.DoPrioritySparking = 1;
1580 debugBelch("Priority Sparking with Normal Priorities.\n");
1581 RtsFlags.GranFlags.InversePriorities = rtsFalse;
1582 RtsFlags.GranFlags.RandomPriorities = rtsFalse;
1583 RtsFlags.GranFlags.IgnorePriorities = rtsFalse;
1587 RtsFlags.GranFlags.DoPrioritySparking = 1;
1588 debugBelch("Priority Sparking with Inverse Priorities.\n");
1589 RtsFlags.GranFlags.InversePriorities++;
1593 RtsFlags.GranFlags.DoPrioritySparking = 1;
1594 debugBelch("Priority Sparking with Random Priorities.\n");
1595 RtsFlags.GranFlags.RandomPriorities++;
1599 RtsFlags.GranFlags.DoPrioritySparking = 1;
1600 debugBelch("Priority Sparking with No Priorities.\n");
1601 RtsFlags.GranFlags.IgnorePriorities++;
1605 bad_option( rts_argv[arg] );
1611 switch(rts_argv[arg][3]) {
1614 RtsFlags.GranFlags.DoAlwaysCreateThreads=rtsFalse;
1615 RtsFlags.GranFlags.DoThreadMigration=rtsFalse;
1619 RtsFlags.GranFlags.DoBulkFetching=rtsFalse;
1623 RtsFlags.GranFlags.DoThreadMigration=rtsFalse;
1627 RtsFlags.GranFlags.DoFairSchedule=rtsFalse;
1631 RtsFlags.GranFlags.DoStealThreadsFirst=rtsFalse;
1632 RtsFlags.GranFlags.DoThreadMigration=rtsFalse;
1636 RtsFlags.GranFlags.DoAsyncFetch=rtsFalse;
1640 RtsFlags.GranFlags.PreferSparksOfLocalNodes=rtsFalse;
1644 RtsFlags.GranFlags.GranSimStats.Suppressed=rtsTrue;
1648 RtsFlags.GranFlags.GranSimStats.Sparks=rtsFalse;
1652 RtsFlags.GranFlags.GranSimStats.Heap=rtsFalse;
1656 RtsFlags.GranFlags.GranSimStats.Binary=rtsFalse;
1660 RtsFlags.GranFlags.DoPrioritySparking = rtsFalse;
1664 RtsFlags.GranFlags.DoPrioritySparking = rtsFalse;
1665 RtsFlags.GranFlags.SparkPriority = rtsFalse;
1669 RtsFlags.GranFlags.DoPriorityScheduling = rtsFalse;
1673 RtsFlags.GranFlags.RandomSteal = rtsFalse;
1677 bad_option( rts_argv[arg] );
1682 # if defined(GRAN_CHECK) && defined(GRAN)
1684 switch(rts_argv[arg][3]) {
1685 case 'Q': /* Set pack buffer size (same as 'Q' in GUM) */
1686 if (rts_argv[arg][4] != '\0') {
1687 RtsFlags.GranFlags.packBufferSize = decode(rts_argv[arg]+4);
1688 debugBelch("Pack buffer size: %d\n",
1689 RtsFlags.GranFlags.packBufferSize);
1691 debugBelch("setupRtsFlags: missing size of PackBuffer (for -Q)\n");
1697 if (isdigit(rts_argv[arg][3])) {/* Set all debugging options in one */
1698 /* hack warning: interpret the flags as a binary number */
1699 nat n = decode(rts_argv[arg]+3);
1700 set_GranSim_debug_options(n);
1703 for (i=0; i<=MAX_GRAN_DEBUG_OPTION; i++)
1704 if (rts_argv[arg][3] == gran_debug_opts_flags[i])
1707 if (i==MAX_GRAN_DEBUG_OPTION+1) {
1708 debugBelch("Valid GranSim debug options are:\n");
1709 help_GranSim_debug_options(MAX_GRAN_DEBUG_MASK);
1710 bad_option( rts_argv[arg] );
1711 } else { // flag found; now set it
1712 set_GranSim_debug_options(GRAN_DEBUG_MASK(i)); // 2^i
1718 case 'e': /* event trace; also -bD1 */
1719 debugBelch("DEBUG: event_trace; printing event trace.\n");
1720 RtsFlags.GranFlags.Debug.event_trace = rtsTrue;
1721 /* RtsFlags.GranFlags.event_trace=rtsTrue; */
1724 case 'E': /* event statistics; also -bD2 */
1725 debugBelch("DEBUG: event_stats; printing event statistics.\n");
1726 RtsFlags.GranFlags.Debug.event_stats = rtsTrue;
1727 /* RtsFlags.GranFlags.Debug |= 0x20; print event statistics */
1730 case 'f': /* thunkStealing; also -bD4 */
1731 debugBelch("DEBUG: thunkStealing; printing forwarding of FETCHNODES.\n");
1732 RtsFlags.GranFlags.Debug.thunkStealing = rtsTrue;
1733 /* RtsFlags.GranFlags.Debug |= 0x2; print fwd messages */
1736 case 'z': /* blockOnFetch; also -bD8 */
1737 debugBelch("DEBUG: blockOnFetch; check for blocked on fetch.\n");
1738 RtsFlags.GranFlags.Debug.blockOnFetch = rtsTrue;
1739 /* RtsFlags.GranFlags.Debug |= 0x4; debug non-reschedule-on-fetch */
1742 case 't': /* blockOnFetch_sanity; also -bD16 */
1743 debugBelch("DEBUG: blockOnFetch_sanity; check for TSO asleep on fetch.\n");
1744 RtsFlags.GranFlags.Debug.blockOnFetch_sanity = rtsTrue;
1745 /* RtsFlags.GranFlags.Debug |= 0x10; debug TSO asleep for fetch */
1748 case 'S': /* priSpark; also -bD32 */
1749 debugBelch("DEBUG: priSpark; priority sparking.\n");
1750 RtsFlags.GranFlags.Debug.priSpark = rtsTrue;
1753 case 's': /* priSched; also -bD64 */
1754 debugBelch("DEBUG: priSched; priority scheduling.\n");
1755 RtsFlags.GranFlags.Debug.priSched = rtsTrue;
1758 case 'F': /* findWork; also -bD128 */
1759 debugBelch("DEBUG: findWork; searching spark-pools (local & remote), thread queues for work.\n");
1760 RtsFlags.GranFlags.Debug.findWork = rtsTrue;
1763 case 'g': /* globalBlock; also -bD256 */
1764 debugBelch("DEBUG: globalBlock; blocking on remote closures (FETCHMEs etc in GUM).\n");
1765 RtsFlags.GranFlags.Debug.globalBlock = rtsTrue;
1768 case 'G': /* pack; also -bD512 */
1769 debugBelch("DEBUG: pack; routines for (un-)packing graph structures.\n");
1770 RtsFlags.GranFlags.Debug.pack = rtsTrue;
1773 case 'P': /* packBuffer; also -bD1024 */
1774 debugBelch("DEBUG: packBuffer; routines handling pack buffer (GranSim internal!).\n");
1775 RtsFlags.GranFlags.Debug.packBuffer = rtsTrue;
1778 case 'o': /* sortedQ; also -bD2048 */
1779 debugBelch("DEBUG: sortedQ; check whether spark/thread queues are sorted.\n");
1780 RtsFlags.GranFlags.Debug.sortedQ = rtsTrue;
1783 case 'r': /* randomSteal; also -bD4096 */
1784 debugBelch("DEBUG: randomSteal; stealing sparks/threads from random PEs.\n");
1785 RtsFlags.GranFlags.Debug.randomSteal = rtsTrue;
1788 case 'q': /* checkSparkQ; also -bD8192 */
1789 debugBelch("DEBUG: checkSparkQ; check consistency of the spark queues.\n");
1790 RtsFlags.GranFlags.Debug.checkSparkQ = rtsTrue;
1793 case ':': /* checkLight; also -bD16384 */
1794 debugBelch("DEBUG: checkLight; check GranSim-Light setup.\n");
1795 RtsFlags.GranFlags.Debug.checkLight = rtsTrue;
1798 case 'b': /* bq; also -bD32768 */
1799 debugBelch("DEBUG: bq; check blocking queues\n");
1800 RtsFlags.GranFlags.Debug.bq = rtsTrue;
1803 case 'd': /* all options turned on */
1804 debugBelch("DEBUG: all options turned on.\n");
1805 set_GranSim_debug_options(MAX_GRAN_DEBUG_MASK);
1806 /* RtsFlags.GranFlags.Debug |= 0x40; */
1810 /* RtsFlags.GranFlags.Debug = 1; */
1816 # endif /* GRAN_CHECK */
1818 bad_option( rts_argv[arg] );
1824 Interpret n as a binary number masking GranSim debug options and set the
1825 correxponding option. See gran_debug_opts_strs for explanations of the flags.
1828 set_GranSim_debug_options(nat n) {
1831 for (i=0; i<=MAX_GRAN_DEBUG_OPTION; i++)
1833 errorBelch(gran_debug_opts_strs[i]);
1835 case 0: RtsFlags.GranFlags.Debug.event_trace = rtsTrue; break;
1836 case 1: RtsFlags.GranFlags.Debug.event_stats = rtsTrue; break;
1837 case 2: RtsFlags.GranFlags.Debug.bq = rtsTrue; break;
1838 case 3: RtsFlags.GranFlags.Debug.pack = rtsTrue; break;
1839 case 4: RtsFlags.GranFlags.Debug.checkSparkQ = rtsTrue; break;
1840 case 5: RtsFlags.GranFlags.Debug.thunkStealing = rtsTrue; break;
1841 case 6: RtsFlags.GranFlags.Debug.randomSteal = rtsTrue; break;
1842 case 7: RtsFlags.GranFlags.Debug.findWork = rtsTrue; break;
1843 case 8: RtsFlags.GranFlags.Debug.unused = rtsTrue; break;
1844 case 9: RtsFlags.GranFlags.Debug.pri = rtsTrue; break;
1845 case 10: RtsFlags.GranFlags.Debug.checkLight = rtsTrue; break;
1846 case 11: RtsFlags.GranFlags.Debug.sortedQ = rtsTrue; break;
1847 case 12: RtsFlags.GranFlags.Debug.blockOnFetch = rtsTrue; break;
1848 case 13: RtsFlags.GranFlags.Debug.packBuffer = rtsTrue; break;
1849 case 14: RtsFlags.GranFlags.Debug.blockOnFetch_sanity = rtsTrue; break;
1850 default: barf("set_GranSim_debug_options: only %d debug options expected");
1856 Print one line explanation for each of the GranSim debug options specified
1860 help_GranSim_debug_options(nat n) {
1863 for (i=0; i<=MAX_GRAN_DEBUG_OPTION; i++)
1865 debugBelch(gran_debug_opts_strs[i]);
1871 process_par_option(int arg, int *rts_argc, char *rts_argv[], rtsBool *error)
1874 if (rts_argv[arg][1] != 'q') { /* All GUM options start with -q */
1875 errorBelch("Warning: GUM option does not start with -q: %s", rts_argv[arg]);
1879 /* Communication and task creation cost parameters */
1880 switch(rts_argv[arg][2]) {
1881 case 'e': /* -qe<n> ... allow <n> local sparks */
1882 if (rts_argv[arg][3] != '\0') { /* otherwise, stick w/ the default */
1883 RtsFlags.ParFlags.maxLocalSparks
1884 = strtol(rts_argv[arg]+3, (char **) NULL, 10);
1886 if (RtsFlags.ParFlags.maxLocalSparks <= 0) {
1887 errorBelch("setupRtsFlags: bad value for -e\n");
1891 IF_PAR_DEBUG(verbose,
1892 errorBelch("-qe<n>: max %d local sparks",
1893 RtsFlags.ParFlags.maxLocalSparks));
1897 if (rts_argv[arg][3] != '\0') {
1898 RtsFlags.ParFlags.maxThreads
1899 = strtol(rts_argv[arg]+3, (char **) NULL, 10);
1901 errorBelch("missing size for -qt\n");
1904 IF_PAR_DEBUG(verbose,
1905 errorBelch("-qt<n>: max %d threads",
1906 RtsFlags.ParFlags.maxThreads));
1910 if (rts_argv[arg][3] != '\0')
1911 RtsFlags.ParFlags.maxFishes = decode(rts_argv[arg]+3);
1913 RtsFlags.ParFlags.maxFishes = MAX_FISHES;
1915 IF_PAR_DEBUG(verbose,
1916 errorBelch("-qf<n>: max %d fishes sent out at one time",
1917 RtsFlags.ParFlags.maxFishes));
1921 if (rts_argv[arg][3] != '\0') {
1922 RtsFlags.ParFlags.fishDelay
1923 = strtol(rts_argv[arg]+3, (char **) NULL, 10);
1925 errorBelch("missing fish delay time for -qF\n");
1928 IF_PAR_DEBUG(verbose,
1929 errorBelch("-qF<n>: fish delay time %d us",
1930 RtsFlags.ParFlags.fishDelay));
1934 RtsFlags.ParFlags.outputDisabled = rtsTrue;
1935 IF_PAR_DEBUG(verbose,
1936 errorBelch("-qO: output disabled"));
1939 case 'g': /* -qg<n> ... globalisation scheme */
1940 if (rts_argv[arg][3] != '\0') {
1941 RtsFlags.ParFlags.globalising = decode(rts_argv[arg]+3);
1943 errorBelch("missing identifier for globalisation scheme (for -qg)\n");
1946 IF_PAR_DEBUG(verbose,
1947 debugBelch("-qg<n>: globalisation scheme set to %d",
1948 RtsFlags.ParFlags.globalising));
1951 case 'h': /* -qh<n> ... max number of thunks (except root) in packet */
1952 if (rts_argv[arg][3] != '\0') {
1953 RtsFlags.ParFlags.thunksToPack = decode(rts_argv[arg]+3);
1955 errorBelch("missing number of thunks per packet (for -qh)\n");
1958 IF_PAR_DEBUG(verbose,
1959 debugBelch("-qh<n>: thunks per packet set to %d",
1960 RtsFlags.ParFlags.thunksToPack));
1963 case 'P': /* -qP for writing a log file */
1964 //RtsFlags.ParFlags.ParStats.Full = rtsFalse;
1965 /* same encoding as in GranSim after -bP */
1966 switch(rts_argv[arg][3]) {
1967 case '\0': RtsFlags.ParFlags.ParStats.Full = rtsTrue;
1968 break; // nothing special, just an ordinary profile
1969 case '0': RtsFlags.ParFlags.ParStats.Suppressed = rtsTrue;
1970 RtsFlags.ParFlags.ParStats.Full = rtsFalse;
1972 case 'b': RtsFlags.ParFlags.ParStats.Binary = rtsTrue;
1974 case 's': RtsFlags.ParFlags.ParStats.Sparks = rtsTrue;
1976 //case 'h': RtsFlags.parFlags.ParStats.Heap = rtsTrue;
1978 case 'n': RtsFlags.ParFlags.ParStats.NewLogfile = rtsTrue;
1981 # if defined(PAR_TICKY)
1982 RtsFlags.ParFlags.ParStats.Global = rtsTrue;
1984 errorBelch("-qPg is only possible for a PAR_TICKY RTS, which this is not");
1985 stg_exit(EXIT_FAILURE);
1988 default: barf("Unknown option -qP%c", rts_argv[arg][2]);
1990 IF_PAR_DEBUG(verbose,
1991 debugBelch("(-qP) writing to log-file (RtsFlags.ParFlags.ParStats.Full=%s)",
1992 (RtsFlags.ParFlags.ParStats.Full ? "rtsTrue" : "rtsFalse")));
1995 case 'Q': /* -qQ<n> ... set pack buffer size to <n> */
1996 if (rts_argv[arg][3] != '\0') {
1997 RtsFlags.ParFlags.packBufferSize = decode(rts_argv[arg]+3);
1999 errorBelch("missing size of PackBuffer (for -qQ)\n");
2002 IF_PAR_DEBUG(verbose,
2003 debugBelch("-qQ<n>: pack buffer size set to %d",
2004 RtsFlags.ParFlags.packBufferSize));
2008 RtsFlags.ParFlags.doFairScheduling = rtsTrue;
2009 IF_PAR_DEBUG(verbose,
2010 debugBelch("-qR: fair-ish scheduling"));
2015 if (rts_argv[arg][3] != '\0') {
2016 RtsFlags.ParFlags.wait
2017 = strtol(rts_argv[arg]+3, (char **) NULL, 10);
2019 RtsFlags.ParFlags.wait = 1000;
2021 IF_PAR_DEBUG(verbose,
2022 debugBelch("-qw<n>: length of wait loop after synchr before reduction: %d",
2023 RtsFlags.ParFlags.wait));
2026 case 'D': /* -qD ... all the debugging options */
2027 if (isdigit(rts_argv[arg][3])) {/* Set all debugging options in one */
2028 /* hack warning: interpret the flags as a binary number */
2029 nat n = decode(rts_argv[arg]+3);
2030 set_par_debug_options(n);
2033 for (i=0; i<=MAX_PAR_DEBUG_OPTION; i++)
2034 if (rts_argv[arg][3] == par_debug_opts_flags[i])
2037 if (i==MAX_PAR_DEBUG_OPTION+1) {
2038 errorBelch("Valid GUM debug options are:\n");
2039 help_par_debug_options(MAX_PAR_DEBUG_MASK);
2040 bad_option( rts_argv[arg] );
2041 } else { // flag found; now set it
2042 set_par_debug_options(PAR_DEBUG_MASK(i)); // 2^i
2048 errorBelch("Unknown option -q%c (%d opts in total)",
2049 rts_argv[arg][2], *rts_argc);
2055 Interpret n as a binary number masking Par debug options and set the
2056 correxponding option. See par_debug_opts_strs for explanations of the flags.
2059 set_par_debug_options(nat n) {
2062 for (i=0; i<=MAX_PAR_DEBUG_OPTION; i++)
2064 debugBelch(par_debug_opts_strs[i]);
2066 case 0: RtsFlags.ParFlags.Debug.verbose = rtsTrue; break;
2067 case 1: RtsFlags.ParFlags.Debug.bq = rtsTrue; break;
2068 case 2: RtsFlags.ParFlags.Debug.schedule = rtsTrue; break;
2069 case 3: RtsFlags.ParFlags.Debug.free = rtsTrue; break;
2070 case 4: RtsFlags.ParFlags.Debug.resume = rtsTrue; break;
2071 case 5: RtsFlags.ParFlags.Debug.weight = rtsTrue; break;
2072 case 6: RtsFlags.ParFlags.Debug.fetch = rtsTrue; break;
2073 //case 7: RtsFlags.ParFlags.Debug.ack = rtsTrue; break;
2074 case 7: RtsFlags.ParFlags.Debug.fish = rtsTrue; break;
2075 case 8: RtsFlags.ParFlags.Debug.tables = rtsTrue; break;
2076 case 9: RtsFlags.ParFlags.Debug.packet = rtsTrue; break;
2077 case 10: RtsFlags.ParFlags.Debug.pack = rtsTrue; break;
2078 case 11: RtsFlags.ParFlags.Debug.paranoia = rtsTrue; break;
2079 default: barf("set_par_debug_options: only %d debug options expected",
2080 MAX_PAR_DEBUG_OPTION);
2086 Print one line explanation for each of the GranSim debug options specified
2090 help_par_debug_options(nat n) {
2093 for (i=0; i<=MAX_PAR_DEBUG_OPTION; i++)
2095 debugBelch(par_debug_opts_strs[i]);
2100 //@node Aux fcts, , GranSim specific options
2101 //@subsection Aux fcts
2104 stats_fprintf(FILE *f, char *s, ...)
2116 static int /* return -1 on error */
2119 int argc, char *argv[],
2120 int rts_argc, char *rts_argv[],
2121 const char *FILENAME_FMT,
2126 if (strequal(rts_argv[arg]+2, "stderr")) { /* use debugBelch */
2127 f = NULL; /* NULL means use debugBelch */
2129 if (rts_argv[arg][2] != '\0') { /* stats file specified */
2130 f = fopen(rts_argv[arg]+2,"w");
2132 char stats_filename[STATS_FILENAME_MAXLEN]; /* default <program>.<ext> */
2133 sprintf(stats_filename, FILENAME_FMT, argv[0]);
2134 f = fopen(stats_filename,"w");
2137 errorBelch("Can't open stats file %s\n", rts_argv[arg]+2);
2144 /* Write argv and rtsv into start of stats file */
2146 for(count = 0; count < argc; count++) {
2147 stats_fprintf(f, "%s ", argv[count]);
2149 stats_fprintf(f, "+RTS ");
2150 for(count = 0; count < rts_argc; count++)
2151 stats_fprintf(f, "%s ", rts_argv[count]);
2152 stats_fprintf(f, "\n");
2160 decode(const char *s)
2171 if (c == 'g' || c == 'G')
2172 m *= 1000*1000*1000; /* UNchecked! */
2173 else if (c == 'm' || c == 'M')
2174 m *= 1000*1000; /* We do not use powers of 2 (1024) */
2175 else if (c == 'k' || c == 'K') /* to avoid possible bad effects on */
2176 m *= 1000; /* a direct-mapped cache. */
2177 else if (c == 'w' || c == 'W')
2184 bad_option(const char *s)
2186 errorBelch("bad RTS option: %s", s);
2187 stg_exit(EXIT_FAILURE);