1 /* -----------------------------------------------------------------------------
3 * (c) The GHC Team, 1998-2009
5 * Datatypes that holds the command-line flag settings.
7 * Do not #include this file directly: #include "Rts.h" instead.
9 * To understand the structure of the RTS headers, see the wiki:
10 * http://hackage.haskell.org/trac/ghc/wiki/Commentary/SourceTree/Includes
12 * ---------------------------------------------------------------------------*/
19 /* For defaults, see the @initRtsFlagsDefaults@ routine. */
25 #define COLLECT_GC_STATS 1
26 #define ONELINE_GC_STATS 2
27 #define SUMMARY_GC_STATS 3
28 #define VERBOSE_GC_STATS 4
30 nat maxStkSize; /* in *words* */
31 nat initialStkSize; /* in *words* */
33 nat maxHeapSize; /* in *blocks* */
34 nat minAllocAreaSize; /* in *blocks* */
35 nat minOldGenSize; /* in *blocks* */
36 nat heapSizeSuggestion; /* in *blocks* */
42 rtsBool squeezeUpdFrames;
44 rtsBool compact; /* True <=> "compact all the time" */
45 double compactThreshold;
47 rtsBool sweep; /* use "mostly mark-sweep" instead of copying
48 * for the oldest generation */
52 int idleGCDelayTime; /* in milliseconds */
54 StgWord heapBase; /* address to ask the OS for memory */
58 /* flags to control debugging output & extra checking in various subsystems */
59 rtsBool scheduler; /* 's' */
60 rtsBool interpreter; /* 'i' */
61 rtsBool weak; /* 'w' */
62 rtsBool gccafs; /* 'G' */
64 rtsBool block_alloc; /* 'b' */
65 rtsBool sanity; /* 'S' warning: might be expensive! */
66 rtsBool stable; /* 't' */
67 rtsBool prof; /* 'p' */
68 rtsBool linker; /* 'l' the object linker */
69 rtsBool apply; /* 'a' */
70 rtsBool stm; /* 'm' */
71 rtsBool squeeze; /* 'z' stack squeezing & lazy blackholing */
72 rtsBool hpc; /* 'c' coverage */
73 rtsBool sparks; /* 'r' */
76 struct COST_CENTRE_FLAGS {
77 unsigned int doCostCentres;
78 # define COST_CENTRES_SUMMARY 1
79 # define COST_CENTRES_VERBOSE 2 /* incl. serial time profile */
80 # define COST_CENTRES_ALL 3
81 # define COST_CENTRES_XML 4
83 int profilerTicks; /* derived */
84 int msecsPerTick; /* derived */
87 struct PROFILING_FLAGS {
88 unsigned int doHeapProfile;
89 # define NO_HEAP_PROFILING 0 /* N.B. Used as indexes into arrays */
90 # define HEAP_BY_CCS 1
91 # define HEAP_BY_MOD 2
92 # define HEAP_BY_DESCR 4
93 # define HEAP_BY_TYPE 5
94 # define HEAP_BY_RETAINER 6
95 # define HEAP_BY_LDV 7
97 # define HEAP_BY_CLOSURE_TYPE 8
99 nat profileInterval; /* delta between samples (in ms) */
100 nat profileIntervalTicks; /* delta between samples (in 'ticks') */
104 rtsBool showCCSOnException;
106 nat maxRetainerSetSize;
115 char* retainerSelector;
121 rtsBool trace_stderr;
122 rtsBool timestamp; /* show timestamp in stderr output */
124 rtsBool scheduler; /* trace scheduler events */
127 struct CONCURRENT_FLAGS {
128 int ctxtSwitchTime; /* in milliseconds */
129 int ctxtSwitchTicks; /* derived */
133 int tickInterval; /* in milliseconds */
134 rtsBool install_signal_handlers;
135 rtsBool machineReadable;
136 StgWord linkerMemBase; /* address to ask the OS for memory
137 * for the linker, NULL ==> off */
142 nat nNodes; /* number of threads to run simultaneously */
143 rtsBool migrate; /* migrate threads between capabilities */
144 rtsBool wakeupMigrate; /* migrate a thread on wakeup */
145 unsigned int maxLocalSparks;
146 rtsBool parGcEnabled; /* enable parallel GC */
147 unsigned int parGcGen; /* do parallel GC in this generation
149 rtsBool parGcLoadBalancingEnabled;
150 /* enable load-balancing in the
152 unsigned int parGcLoadBalancingGen;
153 /* do load-balancing in this
154 * generation and higher only */
155 rtsBool setAffinity; /* force thread affinity with CPUs */
157 #endif /* THREADED_RTS */
160 rtsBool showTickyStats;
165 #define MAX_PAPI_USER_EVENTS 8
168 nat eventType; /* The type of events to count */
170 char * userEvents[MAX_PAPI_USER_EVENTS];
173 #define PAPI_FLAG_CACHE_L1 1
174 #define PAPI_FLAG_CACHE_L2 2
175 #define PAPI_FLAG_BRANCH 3
176 #define PAPI_FLAG_STALLS 4
177 #define PAPI_FLAG_CB_EVENTS 5
178 #define PAPI_USER_EVENTS 6
182 /* Put them together: */
184 typedef struct _RTS_FLAGS {
185 /* The first portion of RTS_FLAGS is invariant. */
186 struct GC_FLAGS GcFlags;
187 struct CONCURRENT_FLAGS ConcFlags;
188 struct MISC_FLAGS MiscFlags;
189 struct DEBUG_FLAGS DebugFlags;
190 struct COST_CENTRE_FLAGS CcFlags;
191 struct PROFILING_FLAGS ProfFlags;
192 struct TRACE_FLAGS TraceFlags;
193 struct TICKY_FLAGS TickyFlags;
195 #if defined(THREADED_RTS)
196 struct PAR_FLAGS ParFlags;
199 struct PAPI_FLAGS PapiFlags;
203 #ifdef COMPILING_RTS_MAIN
204 extern DLLIMPORT RTS_FLAGS RtsFlags;
206 /* Hack because the C code generator can't generate '&label'. */
207 extern RTS_FLAGS RtsFlags[];
209 extern RTS_FLAGS RtsFlags;
212 /* Routines that operate-on/to-do-with RTS flags: */
214 void initRtsFlagsDefaults(void);
215 void setupRtsFlags(int *argc, char *argv[], int *rts_argc, char *rts_argv[]);
216 void setProgName(char *argv[]);
220 * The printf formats are here, so we are less likely to make
221 * overly-long filenames (with disastrous results). No more than 128
225 #define STATS_FILENAME_MAXLEN 128
227 #define GR_FILENAME_FMT "%0.124s.gr"
228 #define GR_FILENAME_FMT_GUM "%0.120s.%03d.%s"
229 #define HP_FILENAME_FMT "%0.124s.hp"
230 #define LIFE_FILENAME_FMT "%0.122s.life"
231 #define PROF_FILENAME_FMT "%0.122s.prof"
232 #define PROF_FILENAME_FMT_GUM "%0.118s.%03d.prof"
233 #define QP_FILENAME_FMT "%0.124s.qp"
234 #define STAT_FILENAME_FMT "%0.122s.stat"
235 #define TICKY_FILENAME_FMT "%0.121s.ticky"
236 #define TIME_FILENAME_FMT "%0.122s.time"
237 #define TIME_FILENAME_FMT_GUM "%0.118s.%03d.time"
239 /* an "int" so as to match normal "argc" */
240 /* Now defined in Stg.h (lib/std/cbits need these too.)
241 extern int prog_argc;
242 extern char **prog_argv;
244 extern int rts_argc; /* ditto */
245 extern char *rts_argv[];
247 #endif /* RTS_FLAGS_H */