/* -----------------------------------------------------------------------------
- * $Id: RtsStartup.c,v 1.49 2001/02/11 17:51:08 simonmar Exp $
+ * $Id: RtsStartup.c,v 1.67 2002/12/11 15:36:48 simonmar Exp $
*
* (c) The GHC Team, 1998-2000
*
*
* ---------------------------------------------------------------------------*/
+#include "PosixSource.h"
#include "Rts.h"
#include "RtsAPI.h"
#include "RtsUtils.h"
#include "Prelude.h" /* fixupRTStoPreludeRefs */
#include "HsFFI.h"
#include "Linker.h"
+#include "ThreadLabels.h"
#if defined(RTS_GTK_FRONTPANEL)
#include "FrontPanel.h"
#if defined(PROFILING) || defined(DEBUG)
# include "Profiling.h"
# include "ProfHeap.h"
+# include "RetainerProfile.h"
#endif
#if defined(GRAN)
-#include "GranSimRts.h"
-#include "ParallelRts.h"
+# include "GranSimRts.h"
+#endif
+
+#if defined(GRAN) || defined(PAR)
+# include "ParallelRts.h"
#endif
#if defined(PAR)
-#include "ParInit.h"
-#include "Parallel.h"
-#include "LLC.h"
+# include "Parallel.h"
+# include "LLC.h"
#endif
+#include <stdlib.h>
+
/*
* Flag Structure
*/
static int rts_has_started_up = 0;
#if defined(PAR)
-static ullong startTime = 0;
+ullong startTime = 0;
#endif
-EXTFUN(__init_Prelude);
+EXTFUN(__stginit_Prelude);
static void initModules ( void (*)(void) );
void
void
startupHaskell(int argc, char *argv[], void (*init_root)(void))
{
- /* To avoid repeated initialisations of the RTS */
- if (rts_has_started_up)
- return;
- else
- rts_has_started_up=1;
+ /* To avoid repeated initialisations of the RTS */
+ if (rts_has_started_up) {
+ /* RTS is up and running, so only run the per-module initialisation code */
+ if (init_root) {
+ initModules(init_root);
+ }
+ return;
+ } else {
+ rts_has_started_up=1;
+ }
/* The very first thing we do is grab the start time...just in case we're
* collecting timing statistics.
stat_startInit();
#ifdef PAR
-/*
- * The parallel system needs to be initialised and synchronised before
- * the program is run.
- */
- fprintf(stderr, "startupHaskell: argv[0]=%s\n", argv[0]);
- if (*argv[0] == '-') { /* Look to see whether we're the Main Thread */
- IAmMainThread = rtsTrue;
- argv++; argc--; /* Strip off flag argument */
- // IF_PAR_DEBUG(verbose,
- fprintf(stderr, "[%x] I am Main Thread\n", mytid);
+ /*
+ * The parallel system needs to be initialised and synchronised before
+ * the program is run.
+ */
+ startupParallelSystem(argv);
+
+ if (*argv[0] == '-') { /* Strip off mainPE flag argument */
+ argv++;
+ argc--;
}
- /*
- * Grab the number of PEs out of the argument vector, and
- * eliminate it from further argument processing.
- */
- nPEs = atoi(argv[1]);
- argv[1] = argv[0];
+
+ argv[1] = argv[0]; /* ignore the nPEs argument */
argv++; argc--;
- initEachPEHook(); /* HWL: hook to be execed on each PE */
#endif
/* Set the RTS flags to default values. */
#if defined(PAR)
/* NB: this really must be done after processing the RTS flags */
- fprintf(stderr, "Synchronising system (%d PEs)\n", nPEs);
- SynchroniseSystem(); // calls initParallelSystem etc
+ IF_PAR_DEBUG(verbose,
+ fprintf(stderr, "==== Synchronising system (%d PEs)\n", nPEs));
+ synchroniseSystem(); // calls initParallelSystem etc
#endif /* PAR */
/* initialise scheduler data structures (needs to be done before
/* initialise the stable pointer table */
initStablePtrTable();
+ /* initialise thread label table (tso->char*) */
+ initThreadLabelTable();
+
#if defined(PROFILING) || defined(DEBUG)
initProfiling1();
#endif
initProfiling2();
#endif
- /* start the ticker */
- install_vtalrm_handler();
- initialize_virtual_timer(TICK_MILLISECS);
-
- /* start our haskell execution tasks */
-#ifdef SMP
- startTasks();
-#endif
+ /* start the virtual timer 'subsystem'. */
+ startVirtTimer(TICK_MILLISECS);
/* Initialise the stats department */
initStats();
/* Initialise the user signal handler set */
initUserSignals();
/* Set up handler to run on SIGINT, etc. */
- init_default_handlers();
+ initDefaultHandlers();
#endif
#ifdef RTS_GTK_FRONTPANEL
- we supply a unique integer to each statically declared cost
centre and cost centre stack in the program.
- The code generator inserts a small function "__init_<module>" in each
- module and calls the registration functions in each of the modules
- it imports. So, if we call "__init_PrelMain", each reachable module in the
+ The code generator inserts a small function "__stginit_<module>" in each
+ module and calls the registration functions in each of the modules it
+ imports. So, if we call "__stginit_PrelMain", each reachable module in the
program will be registered (because PrelMain.mainIO calls Main.main).
The init* functions are compiled in the same way as STG code,
/* The init functions use an explicit stack...
*/
-#define INIT_STACK_SIZE (BLOCK_SIZE * 4)
+#define INIT_STACK_BLOCKS 4
F_ *init_stack = NULL;
-nat init_sp = 0;
static void
initModules ( void (*init_root)(void) )
{
+ bdescr *bd;
#ifdef SMP
Capability cap;
#else
-#define cap MainRegTable
+#define cap MainCapability
#endif
+ nat init_sp;
init_sp = 0;
- init_stack = (F_ *)allocate(INIT_STACK_SIZE / sizeof(W_));
+ bd = allocGroup(INIT_STACK_BLOCKS);
+ init_stack = (F_ *)bd->start;
init_stack[init_sp++] = (F_)stg_init_ret;
- init_stack[init_sp++] = (F_)__init_Prelude;
+// init_stack[init_sp++] = (F_)__stginit_Prelude;
if (init_root != NULL) {
init_stack[init_sp++] = (F_)init_root;
}
- cap.rSp = (P_)(init_stack + init_sp);
- StgRun((StgFunPtr)stg_init, &cap);
+ cap.r.rSp = (P_)(init_stack + init_sp);
+ StgRun((StgFunPtr)stg_init, &cap.r);
+
+ freeGroup(bd);
}
/* -----------------------------------------------------------------------------
{
OnExitHook();
shutdownHaskell();
+#if defined(PAR)
+ /* really exit (stg_exit() would call shutdownParallelSystem() again) */
+ exit(n);
+#else
stg_exit(n);
+#endif
}
void
{
if (!rts_has_started_up)
return;
-
+ rts_has_started_up=0;
+
/* start timing the shutdown */
stat_startExit();
+ /* stop all running tasks */
+ exitScheduler();
+
#if !defined(GRAN)
/* Finalize any remaining weak pointers */
finalizeWeakPointersNow();
end_gr_simulation();
#endif
- /* stop all running tasks */
- exitScheduler();
-
/* stop the ticker */
- initialize_virtual_timer(0);
+ stopVirtTimer();
/* reset the standard file descriptors to blocking mode */
resetNonBlockingFd(0);
resetNonBlockingFd(2);
#if defined(PAR)
+ /* controlled exit; good thread! */
shutdownParallelSystem(0);
+
+ /* global statistics in parallel system */
+ PAR_TICKY_PAR_END();
#endif
/* stop timing the shutdown, we're about to print stats */
}
#endif
+#if defined(PROFILING)
+ reportCCSProfiling();
+#endif
+
#if defined(PROFILING) || defined(DEBUG)
endProfiling();
#endif
-#if defined(PROFILING)
- report_ccs_profiling();
+#ifdef PROFILING
+ // Originally, this was in report_ccs_profiling(). Now, retainer
+ // profiling might tack some extra stuff on to the end of this file
+ // during endProfiling().
+ fclose(prof_file);
#endif
#if defined(TICKY_TICKY)
if (RtsFlags.TickyFlags.showTickyStats) PrintTickyInfo();
#endif
-
- rts_has_started_up=0;
-
}
/*
* called from STG-land to exit the program
*/
+#ifdef PAR
+static int exit_started=rtsFalse;
+#endif
+
void
-stg_exit(I_ n)
-{
-#if 0 /* def PAR */
- par_exit(n);
-#else
- exit(n);
+stg_exit(int n)
+{
+#ifdef PAR
+ /* HACK: avoid a loop when exiting due to a stupid error */
+ if (exit_started)
+ return;
+ exit_started=rtsTrue;
+
+ IF_PAR_DEBUG(verbose, fprintf(stderr,"==-- stg_exit %d on [%x]...", n, mytid));
+ shutdownParallelSystem(n);
#endif
+ exit(n);
}