*
* ---------------------------------------------------------------------------*/
+// PAPI uses caddr_t, which is not POSIX
+#ifndef USE_PAPI
#include "PosixSource.h"
+#endif
+
#include "Rts.h"
#include "RtsAPI.h"
+#include "HsFFI.h"
+
+#include "sm/Storage.h"
+#include "RtsFlags.h"
#include "RtsUtils.h"
-#include "RtsFlags.h"
-#include "OSThreads.h"
-#include "Storage.h" /* initStorage, exitStorage */
+#include "Prelude.h"
#include "Schedule.h" /* initScheduler */
#include "Stats.h" /* initStats */
#include "STM.h" /* initSTM */
-#include "Signals.h"
#include "RtsSignals.h"
-#include "Timer.h" /* startTimer, stopTimer */
#include "Weak.h"
#include "Ticky.h"
#include "StgRun.h"
#include "Prelude.h" /* fixupRTStoPreludeRefs */
-#include "HsFFI.h"
-#include "Linker.h"
#include "ThreadLabels.h"
-#include "BlockAlloc.h"
+#include "sm/BlockAlloc.h"
#include "Trace.h"
+#include "Stable.h"
+#include "Hash.h"
+#include "Profiling.h"
+#include "Timer.h"
+#include "Globals.h"
+void exitLinker( void ); // there is no Linker.h file to include
#if defined(RTS_GTK_FRONTPANEL)
#include "FrontPanel.h"
#endif
-#if defined(PROFILING) || defined(DEBUG)
-# include "Profiling.h"
+#if defined(PROFILING)
# include "ProfHeap.h"
# include "RetainerProfile.h"
#endif
-#if defined(GRAN)
-# include "GranSimRts.h"
+#if defined(mingw32_HOST_OS) && !defined(THREADED_RTS)
+#include "win32/AsyncIO.h"
#endif
-#if defined(GRAN) || defined(PAR)
-# include "ParallelRts.h"
+#if !defined(mingw32_HOST_OS)
+#include "posix/TTY.h"
+#include "posix/FileLock.h"
#endif
-#if defined(PAR)
-# include "Parallel.h"
-# include "LLC.h"
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
#endif
-
-#if defined(mingw32_HOST_OS)
-#include "win32/AsyncIO.h"
+#ifdef HAVE_LOCALE_H
+#include <locale.h>
#endif
-#include <stdlib.h>
-
-#ifdef HAVE_TERMIOS_H
-#include <termios.h>
-#endif
-#ifdef HAVE_SIGNAL_H
-#include <signal.h>
+#if USE_PAPI
+#include "Papi.h"
#endif
// Count of how many outstanding hs_init()s there have been.
static int hs_init_count = 0;
-// Here we save the terminal settings on the standard file
-// descriptors, if we need to change them (eg. to support NoBuffering
-// input).
-static void *saved_termios[3] = {NULL,NULL,NULL};
-
-void*
-__hscore_get_saved_termios(int fd)
-{
- return (0 <= fd && fd < (int)(sizeof(saved_termios) / sizeof(*saved_termios))) ?
- saved_termios[fd] : NULL;
-}
-
-void
-__hscore_set_saved_termios(int fd, void* ts)
-{
- if (0 <= fd && fd < (int)(sizeof(saved_termios) / sizeof(*saved_termios))) {
- saved_termios[fd] = ts;
- }
-}
-
/* -----------------------------------------------------------------------------
- Initialise floating point unit on x86 (currently disabled. why?)
- (see comment in ghc/compiler/nativeGen/MachInstrs.lhs).
+ Initialise floating point unit on x86 (currently disabled; See Note
+ [x86 Floating point precision] in compiler/nativeGen/X86/Instr.hs)
-------------------------------------------------------------------------- */
#define X86_INIT_FPU 0
return;
}
- /* The very first thing we do is grab the start time...just in case we're
+ setlocale(LC_CTYPE,"");
+
+ /* Initialise the stats department, phase 0 */
+ initStats0();
+
+ /* Next 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.
- */
- startupParallelSystem(argv);
-
- if (*argv[0] == '-') { /* Strip off mainPE flag argument */
- argv++;
- argc--;
- }
-
- argv[1] = argv[0]; /* ignore the nPEs argument */
- argv++; argc--;
-#endif
-
/* Set the RTS flags to default values. */
+
initRtsFlagsDefaults();
/* Call the user hook to reset defaults, if present */
/* Parse the flags, separating the RTS flags from the programs args */
if (argc != NULL && argv != NULL) {
- setupRtsFlags(argc, *argv, &rts_argc, rts_argv);
- setProgArgv(*argc,*argv);
+ setFullProgArgv(*argc,*argv);
+ setupRtsFlags(argc, *argv);
}
- /* initTracing must be after setupRtsFlags() */
- initTracing();
+ /* Initialise the stats department, phase 1 */
+ initStats1();
-#if defined(PAR)
- /* NB: this really must be done after processing the RTS flags */
- IF_PAR_DEBUG(verbose,
- debugBelch("==== Synchronising system (%d PEs)\n", nPEs));
- synchroniseSystem(); // calls initParallelSystem etc
-#endif /* PAR */
+#ifdef USE_PAPI
+ papi_init();
+#endif
- /* Perform initialisation of adjustor thunk layer. */
- initAdjustor();
+ /* initTracing must be after setupRtsFlags() */
+#ifdef TRACING
+ initTracing();
+#endif
+ /* Trace the startup event
+ */
+ traceEventStartup();
/* initialise scheduler data structures (needs to be done before
* initStorage()).
*/
initScheduler();
-#if defined(GRAN)
- /* And start GranSim profiling if required: */
- if (RtsFlags.GranFlags.GranSimStats.Full)
- init_gr_simulation(rts_argc, rts_argv, prog_argc, prog_argv);
-#elif defined(PAR)
- /* And start GUM profiling if required: */
- if (RtsFlags.ParFlags.ParStats.Full)
- init_gr_simulation(rts_argc, rts_argv, prog_argc, prog_argv);
-#endif /* PAR || GRAN */
+ /* Trace some basic information about the process */
+ traceOSProcessInfo();
/* initialize the storage manager */
initStorage();
/* initialise the stable pointer table */
initStablePtrTable();
+ /* Add some GC roots for things in the base package that the RTS
+ * knows about. We don't know whether these turn out to be CAFs
+ * or refer to CAFs, but we have to assume that they might.
+ */
+ getStablePtr((StgPtr)runIO_closure);
+ getStablePtr((StgPtr)runNonIO_closure);
+
+ getStablePtr((StgPtr)runFinalizerBatch_closure);
+
+ getStablePtr((StgPtr)stackOverflow_closure);
+ getStablePtr((StgPtr)heapOverflow_closure);
+ getStablePtr((StgPtr)unpackCString_closure);
+ getStablePtr((StgPtr)blockedIndefinitelyOnMVar_closure);
+ getStablePtr((StgPtr)nonTermination_closure);
+ getStablePtr((StgPtr)blockedIndefinitelyOnSTM_closure);
+ getStablePtr((StgPtr)nestedAtomically_closure);
+
+ getStablePtr((StgPtr)runSparks_closure);
+ getStablePtr((StgPtr)ensureIOManagerIsRunning_closure);
+#ifndef mingw32_HOST_OS
+ getStablePtr((StgPtr)runHandlers_closure);
+#endif
+
+ /* initialise the shared Typeable store */
+ initGlobalStore();
+
+ /* initialise file locking, if necessary */
+#if !defined(mingw32_HOST_OS)
+ initFileLocking();
+#endif
+
#if defined(DEBUG)
/* initialise thread label table (tso->char*) */
initThreadLabelTable();
#endif
-#if defined(PROFILING) || defined(DEBUG)
initProfiling1();
-#endif
/* start the virtual timer 'subsystem'. */
- startTimer(TICK_MILLISECS);
-
- /* Initialise the stats department */
- initStats();
+ initTimer();
+ startTimer();
#if defined(RTS_USER_SIGNALS)
- /* Initialise the user signal handler set */
- initUserSignals();
- /* Set up handler to run on SIGINT, etc. */
- initDefaultHandlers();
+ if (RtsFlags.MiscFlags.install_signal_handlers) {
+ /* Initialise the user signal handler set */
+ initUserSignals();
+ /* Set up handler to run on SIGINT, etc. */
+ initDefaultHandlers();
+ }
#endif
-#if defined(mingw32_HOST_OS)
+#if defined(mingw32_HOST_OS) && !defined(THREADED_RTS)
startupAsyncIO();
#endif
x86_init_fpu();
#endif
-#if defined(THREADED_RTS) && !defined(mingw32_HOST_OS)
+ startupHpc();
+
+ // This must be done after module initialisation.
+ // ToDo: make this work in the presence of multiple hs_add_root()s.
+ initProfiling2();
+
+ // ditto.
+#if defined(THREADED_RTS)
ioManagerStart();
#endif
// Compatibility interface
void
-startupHaskell(int argc, char *argv[], void (*init_root)(void))
+startupHaskell(int argc, char *argv[], void (*init_root)(void) STG_UNUSED)
{
hs_init(&argc, &argv);
- if(init_root)
- hs_add_root(init_root);
}
/* -----------------------------------------------------------------------------
- Per-module initialisation
-
- This process traverses all the compiled modules in the program
- starting with "Main", and performing per-module initialisation for
- each one.
-
- So far, two things happen at initialisation time:
-
- - we register stable names for each foreign-exported function
- in that module. This prevents foreign-exported entities, and
- things they depend on, from being garbage collected.
-
- - 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 "__stginit_<module>" in each
- module and calls the registration functions in each of the modules it
- imports.
-
- The init* functions are compiled in the same way as STG code,
- i.e. without normal C call/return conventions. Hence we must use
- StgRun to call this stuff.
+ hs_add_root: backwards compatibility. (see #3252)
-------------------------------------------------------------------------- */
-/* The init functions use an explicit stack...
- */
-#define INIT_STACK_BLOCKS 4
-static F_ *init_stack = NULL;
-
void
-hs_add_root(void (*init_root)(void))
+hs_add_root(void (*init_root)(void) STG_UNUSED)
{
- bdescr *bd;
- nat init_sp;
- Capability *cap = &MainCapability;
-
- if (hs_init_count <= 0) {
- barf("hs_add_root() must be called after hs_init()");
- }
-
- /* The initialisation stack grows downward, with sp pointing
- to the last occupied word */
- init_sp = INIT_STACK_BLOCKS*BLOCK_SIZE_W;
- bd = allocGroup_lock(INIT_STACK_BLOCKS);
- init_stack = (F_ *)bd->start;
- init_stack[--init_sp] = (F_)stg_init_finish;
- if (init_root != NULL) {
- init_stack[--init_sp] = (F_)init_root;
- }
-
- cap->r.rSp = (P_)(init_stack + init_sp);
- StgRun((StgFunPtr)stg_init, &cap->r);
-
- freeGroup_lock(bd);
-
-#if defined(PROFILING) || defined(DEBUG)
- // This must be done after module initialisation.
- // ToDo: make this work in the presence of multiple hs_add_root()s.
- initProfiling2();
-#endif
+ /* nothing */
}
-/* -----------------------------------------------------------------------------
- Shutting down the RTS
- -------------------------------------------------------------------------- */
+/* ----------------------------------------------------------------------------
+ * Shutting down the RTS
+ *
+ * The wait_foreign parameter means:
+ * True ==> wait for any threads doing foreign calls now.
+ * False ==> threads doing foreign calls may return in the
+ * future, but will immediately block on a mutex.
+ * (capability->lock).
+ *
+ * If this RTS is a DLL that we're about to unload, then you want
+ * safe=True, otherwise the thread might return to code that has been
+ * unloaded. If this is a standalone program that is about to exit,
+ * then you can get away with safe=False, which is better because we
+ * won't hang on exit if there is a blocked foreign call outstanding.
+ *
+ ------------------------------------------------------------------------- */
-void
-hs_exit(void)
+static void
+hs_exit_(rtsBool wait_foreign)
{
if (hs_init_count <= 0) {
errorBelch("warning: too many hs_exit()s");
/* start timing the shutdown */
stat_startExit();
-#if defined(THREADED_RTS) && !defined(mingw32_HOST_OS)
+ OnExitHook();
+
+ // sanity check
+#if defined(DEBUG)
+ checkFPUStack();
+#endif
+
+#if defined(THREADED_RTS)
ioManagerDie();
#endif
/* stop all running tasks */
- exitScheduler();
+ exitScheduler(wait_foreign);
+
+ /* run C finalizers for all active weak pointers */
+ runAllCFinalizers(weak_ptr_list);
-#if defined(GRAN)
- /* end_gr_simulation prints global stats if requested -- HWL */
- if (!RtsFlags.GranFlags.GranSimStats.Suppressed)
- end_gr_simulation();
+#if defined(RTS_USER_SIGNALS)
+ if (RtsFlags.MiscFlags.install_signal_handlers) {
+ freeSignalHandlers();
+ }
#endif
-
+
/* stop the ticker */
stopTimer();
-
- /* reset the standard file descriptors to blocking mode */
- resetNonBlockingFd(0);
- resetNonBlockingFd(1);
- resetNonBlockingFd(2);
-
-#if HAVE_TERMIOS_H
- // Reset the terminal settings on the standard file descriptors,
- // if we changed them. See System.Posix.Internals.tcSetAttr for
- // more details, including the reason we termporarily disable
- // SIGTTOU here.
- {
- int fd;
- sigset_t sigset, old_sigset;
- sigemptyset(&sigset);
- sigaddset(&sigset, SIGTTOU);
- sigprocmask(SIG_BLOCK, &sigset, &old_sigset);
- for (fd = 0; fd <= 2; fd++) {
- struct termios* ts = (struct termios*)__hscore_get_saved_termios(fd);
- if (ts != NULL) {
- tcsetattr(fd,TCSANOW,ts);
- }
- }
- sigprocmask(SIG_SETMASK, &old_sigset, NULL);
- }
-#endif
+ exitTimer(wait_foreign);
-#if defined(PAR)
- /* controlled exit; good thread! */
- shutdownParallelSystem(0);
-
- /* global statistics in parallel system */
- PAR_TICKY_PAR_END();
+ // set the terminal settings back to what they were
+#if !defined(mingw32_HOST_OS)
+ resetTerminalSettings();
#endif
+ // uninstall signal handlers
+ resetDefaultHandlers();
+
/* stop timing the shutdown, we're about to print stats */
stat_endExit();
+ /* shutdown the hpc support (if needed) */
+ exitHpc();
+
// clean up things from the storage manager's point of view.
// also outputs the stats (+RTS -s) info.
exitStorage();
- /* initialise the stable pointer table */
+ /* free the tasks */
+ freeScheduler();
+
+ /* free shared Typeable store */
+ exitGlobalStore();
+
+ /* free linker data */
+ exitLinker();
+
+ /* free file locking tables, if necessary */
+#if !defined(mingw32_HOST_OS)
+ freeFileLocking();
+#endif
+
+ /* free the stable pointer table */
exitStablePtrTable();
- /* free hash table storage */
- exitHashTable();
+#if defined(DEBUG)
+ /* free the thread label table */
+ freeThreadLabelTable();
+#endif
#ifdef RTS_GTK_FRONTPANEL
if (RtsFlags.GcFlags.frontpanel) {
reportCCSProfiling();
#endif
-#if defined(PROFILING) || defined(DEBUG)
endProfiling();
-#endif
+ freeProfiling();
#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);
+ if (prof_file != NULL) fclose(prof_file);
+#endif
+
+#ifdef TRACING
+ endTracing();
+ freeTracing();
#endif
#if defined(TICKY_TICKY)
if (RtsFlags.TickyFlags.showTickyStats) PrintTickyInfo();
#endif
-#if defined(mingw32_HOST_OS)
- shutdownAsyncIO();
+#if defined(mingw32_HOST_OS) && !defined(THREADED_RTS)
+ shutdownAsyncIO(wait_foreign);
#endif
- // Finally, free all our storage.
- freeStorage();
+ /* free hash table storage */
+ exitHashTable();
+
+ // Finally, free all our storage. However, we only free the heap
+ // memory if we have waited for foreign calls to complete;
+ // otherwise a foreign call in progress may still be referencing
+ // heap memory (e.g. by being passed a ByteArray#).
+ freeStorage(wait_foreign);
+
+ // Free the various argvs
+ freeRtsArgs();
+}
+
+// The real hs_exit():
+void
+hs_exit(void)
+{
+ hs_exit_(rtsTrue);
+ // be safe; this might be a DLL
}
// Compatibility interfaces
void
shutdownHaskellAndExit(int n)
{
- if (hs_init_count == 1) {
- OnExitHook();
- hs_exit();
-#if defined(PAR)
- /* really exit (stg_exit() would call shutdownParallelSystem() again) */
- exit(n);
-#else
+ // we're about to exit(), no need to wait for foreign calls to return.
+ hs_exit_(rtsFalse);
+
+ if (hs_init_count == 0) {
stg_exit(n);
-#endif
}
}
+#ifndef mingw32_HOST_OS
+void
+shutdownHaskellAndSignal(int sig)
+{
+ hs_exit_(rtsFalse);
+ kill(getpid(),sig);
+}
+#endif
+
/*
* called from STG-land to exit the program
*/
-#ifdef PAR
-static int exit_started=rtsFalse;
-#endif
+void (*exitFn)(int) = 0;
void
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, debugBelch("==-- stg_exit %d on [%x]...", n, mytid));
- shutdownParallelSystem(n);
-#endif
+ if (exitFn)
+ (*exitFn)(n);
exit(n);
}
projects / ghc-hetmet.git / blobdiff