X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=rts%2FRtsStartup.c;h=c9edeace8e3c94fb2257b720c30885a8831176bd;hb=de75026f5a48d3d052135a973ab4dff76c5b20f5;hp=71978007f3e1d22ca774f515f82fcfaefad352d3;hpb=7a1f8fbdbab99465793c50bd9fb376c950e7e9d7;p=ghc-hetmet.git diff --git a/rts/RtsStartup.c b/rts/RtsStartup.c index 7197800..c9edeac 100644 --- a/rts/RtsStartup.c +++ b/rts/RtsStartup.c @@ -6,18 +6,20 @@ * * ---------------------------------------------------------------------------*/ -#include "PosixSource.h" +// PAPI uses caddr_t, which is not POSIX +// #include "PosixSource.h" + #include "Rts.h" #include "RtsAPI.h" #include "RtsUtils.h" #include "RtsFlags.h" #include "OSThreads.h" -#include "Storage.h" /* initStorage, exitStorage */ #include "Schedule.h" /* initScheduler */ #include "Stats.h" /* initStats */ #include "STM.h" /* initSTM */ #include "Signals.h" #include "RtsSignals.h" +#include "ThrIOManager.h" #include "Timer.h" /* startTimer, stopTimer */ #include "Weak.h" #include "Ticky.h" @@ -27,13 +29,20 @@ #include "Linker.h" #include "ThreadLabels.h" #include "BlockAlloc.h" +#include "Trace.h" +#include "RtsGlobals.h" +#include "Stable.h" +#include "Hpc.h" +#include "FileLock.h" +#include "EventLog.h" #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 @@ -51,7 +60,7 @@ # include "LLC.h" #endif -#if defined(mingw32_HOST_OS) +#if defined(mingw32_HOST_OS) && !defined(THREADED_RTS) #include "win32/AsyncIO.h" #endif @@ -63,6 +72,13 @@ #ifdef HAVE_SIGNAL_H #include #endif +#ifdef HAVE_UNISTD_H +#include +#endif + +#if USE_PAPI +#include "Papi.h" +#endif // Count of how many outstanding hs_init()s there have been. static int hs_init_count = 0; @@ -128,11 +144,20 @@ hs_init(int *argc, char **argv[]) return; } - /* The very first thing we do is grab the start time...just in case we're + /* 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(); +#if defined(DEBUG) + /* Start off by initialising the allocator debugging so we can + * use it anywhere */ + initAllocator(); +#endif + #ifdef PAR /* * The parallel system needs to be initialised and synchronised before @@ -150,6 +175,7 @@ hs_init(int *argc, char **argv[]) #endif /* Set the RTS flags to default values. */ + initRtsFlagsDefaults(); /* Call the user hook to reset defaults, if present */ @@ -157,10 +183,23 @@ hs_init(int *argc, char **argv[]) /* Parse the flags, separating the RTS flags from the programs args */ if (argc != NULL && argv != NULL) { + setFullProgArgv(*argc,*argv); setupRtsFlags(argc, *argv, &rts_argc, rts_argv); setProgArgv(*argc,*argv); } + /* Initialise the stats department, phase 1 */ + initStats1(); + +#ifdef USE_PAPI + papi_init(); +#endif + + /* initTracing must be after setupRtsFlags() */ +#ifdef DEBUG + initTracing(); +#endif + #if defined(PAR) /* NB: this really must be done after processing the RTS flags */ IF_PAR_DEBUG(verbose, @@ -168,9 +207,6 @@ hs_init(int *argc, char **argv[]) synchroniseSystem(); // calls initParallelSystem etc #endif /* PAR */ - /* Perform initialisation of adjustor thunk layer. */ - initAdjustor(); - /* initialise scheduler data structures (needs to be done before * initStorage()). */ @@ -192,29 +228,55 @@ hs_init(int *argc, char **argv[]) /* 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)base_GHCziTopHandler_runIO_closure); + getStablePtr((StgPtr)base_GHCziTopHandler_runNonIO_closure); + getStablePtr((StgPtr)stackOverflow_closure); + getStablePtr((StgPtr)heapOverflow_closure); + getStablePtr((StgPtr)runFinalizerBatch_closure); + getStablePtr((StgPtr)unpackCString_closure); + getStablePtr((StgPtr)blockedOnDeadMVar_closure); + getStablePtr((StgPtr)nonTermination_closure); + getStablePtr((StgPtr)blockedIndefinitely_closure); + + /* 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(); + +#ifdef EVENTLOG + if (RtsFlags.EventLogFlags.doEventLogging) { + initEventLogging(); + } #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 @@ -228,10 +290,6 @@ hs_init(int *argc, char **argv[]) x86_init_fpu(); #endif -#if defined(THREADED_RTS) && !defined(mingw32_HOST_OS) - ioManagerStart(); -#endif - /* Record initialization times */ stat_endInit(); } @@ -281,7 +339,9 @@ hs_add_root(void (*init_root)(void)) { bdescr *bd; nat init_sp; - Capability *cap = &MainCapability; + Capability *cap; + + cap = rts_lock(); if (hs_init_count <= 0) { barf("hs_add_root() must be called after hs_init()"); @@ -302,19 +362,39 @@ hs_add_root(void (*init_root)(void)) freeGroup_lock(bd); -#if defined(PROFILING) || defined(DEBUG) + startupHpc(); + // This must be done after module initialisation. // ToDo: make this work in the presence of multiple hs_add_root()s. initProfiling2(); + + rts_unlock(cap); + + // ditto. +#if defined(THREADED_RTS) + ioManagerStart(); #endif } -/* ----------------------------------------------------------------------------- - 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"); @@ -329,13 +409,24 @@ hs_exit(void) /* start timing the shutdown */ stat_startExit(); -#if defined(THREADED_RTS) && !defined(mingw32_HOST_OS) + OnExitHook(); + +#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(RTS_USER_SIGNALS) + if (RtsFlags.MiscFlags.install_signal_handlers) { + freeSignalHandlers(); + } +#endif + #if defined(GRAN) /* end_gr_simulation prints global stats if requested -- HWL */ if (!RtsFlags.GranFlags.GranSimStats.Suppressed) @@ -344,7 +435,8 @@ hs_exit(void) /* stop the ticker */ stopTimer(); - + exitTimer(); + /* reset the standard file descriptors to blocking mode */ resetNonBlockingFd(0); resetNonBlockingFd(1); @@ -379,13 +471,38 @@ hs_exit(void) PAR_TICKY_PAR_END(); #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(); + /* free the tasks */ + freeScheduler(); + + /* free shared Typeable store */ + exitGlobalStore(); + + /* free file locking tables, if necessary */ +#if !defined(mingw32_HOST_OS) + freeFileLocking(); +#endif + + /* free the stable pointer table */ + exitStablePtrTable(); + +#if defined(DEBUG) + /* free the thread label table */ + freeThreadLabelTable(); +#endif + #ifdef RTS_GTK_FRONTPANEL if (RtsFlags.GcFlags.frontpanel) { stopFrontPanel(); @@ -396,27 +513,50 @@ hs_exit(void) reportCCSProfiling(); #endif -#if defined(PROFILING) || defined(DEBUG) endProfiling(); -#endif + freeProfiling1(); #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 EVENTLOG + if (RtsFlags.EventLogFlags.doEventLogging) { + endEventLogging(); + freeEventLogging(); + } #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. + /* free hash table storage */ + exitHashTable(); + + // Finally, free all our storage freeStorage(); + +#if defined(DEBUG) + /* and shut down the allocator debugging */ + shutdownAllocator(); +#endif + +} + +// The real hs_exit(): +void +hs_exit(void) +{ + hs_exit_(rtsTrue); + // be safe; this might be a DLL } // Compatibility interfaces @@ -429,9 +569,10 @@ shutdownHaskell(void) void shutdownHaskellAndExit(int n) { - if (hs_init_count == 1) { - OnExitHook(); - hs_exit(); + // we're about to exit(), no need to wait for foreign calls to return. + hs_exit_(rtsFalse); + + if (hs_init_count == 0) { #if defined(PAR) /* really exit (stg_exit() would call shutdownParallelSystem() again) */ exit(n); @@ -441,6 +582,15 @@ shutdownHaskellAndExit(int n) } } +#ifndef mingw32_HOST_OS +void +shutdownHaskellAndSignal(int sig) +{ + hs_exit_(rtsFalse); + kill(getpid(),sig); +} +#endif + /* * called from STG-land to exit the program */ @@ -449,6 +599,8 @@ shutdownHaskellAndExit(int n) static int exit_started=rtsFalse; #endif +void (*exitFn)(int) = 0; + void stg_exit(int n) { @@ -461,5 +613,7 @@ stg_exit(int n) IF_PAR_DEBUG(verbose, debugBelch("==-- stg_exit %d on [%x]...", n, mytid)); shutdownParallelSystem(n); #endif + if (exitFn) + (*exitFn)(n); exit(n); }