1 /* -----------------------------------------------------------------------------
2 * $Id: RtsStartup.c,v 1.15 1999/07/02 09:31:54 simonmar Exp $
4 * (c) The GHC Team, 1998-1999
6 * Main function for a standalone Haskell program.
8 * ---------------------------------------------------------------------------*/
14 #include "Storage.h" /* initStorage, exitStorage */
15 #include "StablePriv.h" /* initStablePtrTable */
16 #include "Schedule.h" /* initScheduler */
17 #include "Stats.h" /* initStats */
21 #if defined(PROFILING)
24 # include "DebugProf.h"
36 struct RTS_FLAGS RtsFlags;
38 static int rts_has_started_up = 0;
41 startupHaskell(int argc, char *argv[])
43 #ifdef ENABLE_WIN32_DLL_SUPPORT
47 /* To avoid repeated initialisations of the RTS */
48 if (rts_has_started_up)
54 int nPEs = 0; /* Number of PEs */
57 /* The very first thing we do is grab the start time...just in case we're
58 * collecting timing statistics.
64 *The parallel system needs to be initialised and synchronised before
67 if (*argv[0] == '-') { /* Look to see whether we're the Main Thread */
68 IAmMainThread = rtsTrue;
69 argv++; argc--; /* Strip off flag argument */
70 /* fprintf(stderr, "I am Main Thread\n"); */
73 * Grab the number of PEs out of the argument vector, and
74 * eliminate it from further argument processing.
79 initEachPEHook(); /* HWL: hook to be execed on each PE */
83 /* Set the RTS flags to default values. */
84 initRtsFlagsDefaults();
86 /* Call the user hook to reset defaults, if present */
89 /* Parse the flags, separating the RTS flags from the programs args */
90 setupRtsFlags(&argc, argv, &rts_argc, rts_argv);
95 /* Initialise the parallel system -- before initHeap! */
97 /* And start GranSim profiling if required: omitted for now
98 *if (Rtsflags.ParFlags.granSimStats)
99 *init_gr_profiling(rts_argc, rts_argv, prog_argc, prog_argv);
103 /* initialize the storage manager */
106 /* initialise the stable pointer table */
107 initStablePtrTable();
109 #if defined(PROFILING) || defined(DEBUG)
113 /* Initialise the scheduler */
116 /* Initialise the stats department */
123 /* When the RTS and Prelude live in separate DLLs,
124 we need to patch up the char- and int-like tables
125 that the RTS keep after both DLLs have been loaded,
126 filling in the tables with references to where the
127 static info tables have been loaded inside the running
130 #ifdef ENABLE_WIN32_DLL_SUPPORT
132 (CHARLIKE_closure[i]).header.info = (const StgInfoTable*)&Czh_static_info;
135 (INTLIKE_closure[i]).header.info = (const StgInfoTable*)&Izh_static_info;
138 /* Record initialization times */
143 shutdownHaskell(void)
145 if (!rts_has_started_up)
148 /* Finalize any remaining weak pointers */
149 finalizeWeakPointersNow();
153 if (!RTSflags.GranFlags.granSimStats_suppressed)
157 /* clean up things from the storage manager's point of view */
160 #if defined(PROFILING) || defined(DEBUG)
164 #if defined(PROFILING)
165 report_ccs_profiling( );
168 #if defined(TICKY_TICKY)
169 if (RtsFlags.TickyFlags.showTickyStats) PrintTickyInfo();
172 rts_has_started_up=0;
177 * called from STG-land to exit the program cleanly