/* -----------------------------------------------------------------------------
- * $Id: RtsFlags.c,v 1.41 2001/07/23 17:23:19 simonmar Exp $
+ * $Id: RtsFlags.c,v 1.50 2001/08/31 11:42:44 sewardj Exp $
*
* (c) The AQUA Project, Glasgow University, 1994-1997
* (c) The GHC Team, 1998-1999
//@node Includes, Constants
//@subsection Includes
+#include "PosixSource.h"
#include "Rts.h"
#include "RtsFlags.h"
#include "RtsUtils.h"
RtsFlags.GcFlags.minAllocAreaSize = (256 * 1024) / BLOCK_SIZE;
RtsFlags.GcFlags.minOldGenSize = (1024 * 1024) / BLOCK_SIZE;
- RtsFlags.GcFlags.maxHeapSize = (64 * 1024 * 1024) / BLOCK_SIZE;
+ RtsFlags.GcFlags.maxHeapSize = 0; /* off by default */
RtsFlags.GcFlags.heapSizeSuggestion = 0; /* none */
RtsFlags.GcFlags.pcFreeHeap = 3; /* 3% */
RtsFlags.GcFlags.oldGenFactor = 2;
#else
RtsFlags.GcFlags.generations = 2;
RtsFlags.GcFlags.steps = 2;
- RtsFlags.GcFlags.compact = rtsFalse;
RtsFlags.GcFlags.squeezeUpdFrames = rtsTrue;
#endif
+ RtsFlags.GcFlags.compact = rtsFalse;
+ RtsFlags.GcFlags.compactThreshold = 30.0;
#ifdef RTS_GTK_FRONTPANEL
RtsFlags.GcFlags.frontpanel = rtsFalse;
#endif
" -k<size> Sets the initial thread stack size (default 1k) Egs: -K4k -K2m",
"",
" -A<size> Sets the minimum allocation area size (default 256k) Egs: -A1m -A10k",
-" -M<size> Sets the maximum heap size (default 64M) Egs: -M256k -M1G",
+" -M<size> Sets the maximum heap size (default unlimited) Egs: -M256k -M1G",
" -H<size> Sets the minimum heap size (default 0M) Egs: -H24m -H1G",
-" -m<n>% Minimum % of heap which must be available (default 3%)",
+" -m<n> Minimum % of heap which must be available (default 3%)",
" -G<n> Number of generations (default: 2)",
" -T<n> Number of steps in younger generations (default: 2)",
-" -c Enable compaction for the oldest generation",
+" -c<n> Auto-enable compaction of the oldest generation when live data is",
+" at least <n>% of the maximum heap size set with -M (default: 30%)",
+" -c Enable compaction for all major collections",
"",
" -t<file> One-line GC statistics (default file: <program>.stat)",
" -s<file> Summary GC statistics (with -Sstderr going to stderr)",
#if defined(PROFILING) || defined(PAR)
"",
" -px Time/allocation profile (XML) (output file <program>.prof)",
-" -p<sort> Time/allocation profile (output file <program>.prof)",
-" sort: T = time (default), A = alloc, C = cost centre label",
-" -P<sort> More detailed Time/Allocation profile",
+" -p Time/allocation profile (output file <program>.prof)",
+" -P More detailed Time/Allocation profile",
+" -Pa Give information about *all* cost centres",
# if defined(PROFILING)
"",
" -b... All GranSim options start with -b; see GranSim User's Guide for details",
#endif
"",
+"RTS options may also be specified using the GHCRTS environment variable.",
+"",
"Other RTS options may be available for programs compiled a different way.",
"The GHC User's Guide has full details.",
"",
if ((last_slash = (char *) strrchr(argv[0], '/')) != NULL)
strcpy(argv[0], last_slash+1);
- /* Split arguments (argv) into PGM (argv) and RTS (rts_argv) parts */
- /* argv[0] must be PGM argument -- leave in argv */
-
total_arg = *argc;
arg = 1;
*argc = 1;
*rts_argc = 0;
- for (mode = PGM; arg < total_arg && ! strequal("--RTS", argv[arg]); arg++) {
- if (strequal("+RTS", argv[arg])) {
+ // process arguments from the GHCRTS environment variable first
+ // (arguments from the command line override these).
+ {
+ char *ghc_rts = getenv("GHCRTS");
+ char *c1, *c2, *s;
+
+ if (ghc_rts != NULL) {
+ c1 = ghc_rts;
+ do {
+ while (isspace(*c1)) { c1++; };
+ c2 = c1;
+ while (!isspace(*c2) && *c2 != '\0') { c2++; };
+
+ if (c1 == c2) { break; }
+
+ if (*rts_argc < MAX_RTS_ARGS-1) {
+ s = malloc(c2-c1+1);
+ strncpy(s, c1, c2-c1);
+ s[c2-c1] = '\0';
+ rts_argv[(*rts_argc)++] = s;
+ } else {
+ barf("too many RTS arguments (max %d)", MAX_RTS_ARGS-1);
+ }
+
+ c1 = c2;
+ } while (*c1 != '\0');
+ }
+ }
+
+ // Split arguments (argv) into PGM (argv) and RTS (rts_argv) parts
+ // argv[0] must be PGM argument -- leave in argv
+
+ for (mode = PGM; arg < total_arg; arg++) {
+ // The '--RTS' argument disables all future +RTS ... -RTS processing.
+ if (strequal("--RTS", argv[arg])) {
+ arg++;
+ break;
+ }
+ // The '--' argument is passed through to the program, but
+ // disables all further +RTS ... -RTS processing.
+ else if (strequal("--", argv[arg])) {
+ break;
+ }
+ else if (strequal("+RTS", argv[arg])) {
mode = RTS;
}
else if (strequal("-RTS", argv[arg])) {
barf("too many RTS arguments (max %d)", MAX_RTS_ARGS-1);
}
}
- if (arg < total_arg) {
- /* arg must be --RTS; process remaining program arguments */
- while (++arg < total_arg) {
- argv[(*argc)++] = argv[arg];
- }
+ // process remaining program arguments
+ for (; arg < total_arg; arg++) {
+ argv[(*argc)++] = argv[arg];
}
argv[*argc] = (char *) 0;
rts_argv[*rts_argc] = (char *) 0;
- /* Process RTS (rts_argv) part: mainly to determine statsfile */
-
+ // Process RTS (rts_argv) part: mainly to determine statsfile
for (arg = 0; arg < *rts_argc; arg++) {
if (rts_argv[arg][0] != '-') {
fflush(stdout);
break;
case 'c':
- RtsFlags.GcFlags.compact = rtsTrue;
- break;
+ if (rts_argv[arg][2] != '\0') {
+ RtsFlags.GcFlags.compactThreshold =
+ atof(rts_argv[arg]+2);
+ } else {
+ RtsFlags.GcFlags.compact = rtsTrue;
+ }
+ break;
case 'F':
RtsFlags.GcFlags.oldGenFactor = atof(rts_argv[arg]+2);
/* =========== PROFILING ========================== */
case 'P': /* detailed cost centre profiling (time/alloc) */
- COST_CENTRE_USING_BUILD_ONLY(
- RtsFlags.CcFlags.doCostCentres = COST_CENTRES_VERBOSE;
- )
case 'p': /* cost centre profiling (time/alloc) */
COST_CENTRE_USING_BUILD_ONLY(
switch (rts_argv[arg][2]) {
case 'x':
RtsFlags.CcFlags.doCostCentres = COST_CENTRES_XML;
break;
- default:
- RtsFlags.CcFlags.doCostCentres = COST_CENTRES_SUMMARY;
+ case 'a':
+ RtsFlags.CcFlags.doCostCentres = COST_CENTRES_ALL;
break;
+ default:
+ if (rts_argv[arg][1] == 'P') {
+ RtsFlags.CcFlags.doCostCentres =
+ COST_CENTRES_VERBOSE;
+ } else {
+ RtsFlags.CcFlags.doCostCentres =
+ COST_CENTRES_SUMMARY;
+ }
+ break;
}
) break;
case 9: RtsFlags.DebugFlags.prof = rtsTrue; break;
case 10: RtsFlags.DebugFlags.gran = rtsTrue; break;
case 11: RtsFlags.DebugFlags.par = rtsTrue; break;
+ case 12: RtsFlags.DebugFlags.linker = rtsTrue; break;
default: barf("set_debug_options: only %d debug options expected",
MAX_DEBUG_OPTION);
} /* switch */
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