X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=rts%2FRtsStartup.c;h=1c39cf8422290da92d42f427f09e85abf619ba90;hb=6cf8982ac30be6836a0cdd8be5a6ac1a1a144213;hp=824ef98101bd098e04b62ffa1d0a9f895302a972;hpb=80a766fdb6864eae613962e43ad9eb371e0ce80c;p=ghc-hetmet.git diff --git a/rts/RtsStartup.c b/rts/RtsStartup.c index 824ef98..1c39cf8 100644 --- a/rts/RtsStartup.c +++ b/rts/RtsStartup.c @@ -7,67 +7,56 @@ * ---------------------------------------------------------------------------*/ // PAPI uses caddr_t, which is not POSIX -// #include "PosixSource.h" +#ifndef USE_PAPI +#include "PosixSource.h" +#endif #include "Rts.h" #include "RtsAPI.h" +#include "HsFFI.h" + +#include "sm/Storage.h" #include "RtsUtils.h" -#include "RtsFlags.h" -#include "OSThreads.h" #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" #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 "RtsTypeable.h" #include "Stable.h" -#include "Hpc.h" +#include "Hash.h" +#include "Profiling.h" +#include "Timer.h" +#include "Globals.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 -#if defined(GRAN) -# include "GranSimRts.h" -#endif - -#if defined(GRAN) || defined(PAR) -# include "ParallelRts.h" -#endif - -#if defined(PAR) -# include "Parallel.h" -# include "LLC.h" -#endif - #if defined(mingw32_HOST_OS) && !defined(THREADED_RTS) #include "win32/AsyncIO.h" #endif -#include +#if !defined(mingw32_HOST_OS) +#include "posix/TTY.h" +#include "posix/FileLock.h" +#endif -#ifdef HAVE_TERMIOS_H -#include +#ifdef HAVE_UNISTD_H +#include #endif -#ifdef HAVE_SIGNAL_H -#include +#ifdef HAVE_LOCALE_H +#include #endif #if USE_PAPI @@ -77,26 +66,6 @@ // 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). @@ -138,49 +107,20 @@ hs_init(int *argc, char **argv[]) 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 - - /* Initialise the performance tracking library */ -#ifdef USE_PAPI - { - int ver; - if ((ver = PAPI_library_init(PAPI_VER_CURRENT)) != PAPI_VER_CURRENT) { - if (ver > 0) { - errorBelch("PAPI_library_init: wrong version: %x", ver); - stg_exit(EXIT_FAILURE); - } else { - sysErrorBelch("PAPI_library_init"); - stg_exit(EXIT_FAILURE); - } - } - } -#ifdef THREADED_RTS - { - int err; - if ((err = PAPI_thread_init(osThreadId)) < 0) { - barf("PAPI_thread_init: %d",err); - } - } -#endif +#if defined(DEBUG) + /* Start off by initialising the allocator debugging so we can + * use it anywhere */ + initAllocator(); #endif /* Set the RTS flags to default values. */ @@ -192,67 +132,74 @@ 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); } - /* 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 /* 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 */ - /* 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)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)blockedIndefinitelyOnMVar_closure); + getStablePtr((StgPtr)nonTermination_closure); + getStablePtr((StgPtr)blockedIndefinitelyOnSTM_closure); + /* initialise the shared Typeable store */ - initTypeableStore(); + 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'. */ + initTimer(); startTimer(); - /* Initialise the stats department */ - initStats(); - #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) && !defined(THREADED_RTS) @@ -269,10 +216,6 @@ hs_init(int *argc, char **argv[]) x86_init_fpu(); #endif -#if defined(THREADED_RTS) - ioManagerStart(); -#endif - /* Record initialization times */ stat_endInit(); } @@ -315,14 +258,16 @@ startupHaskell(int argc, char *argv[], void (*init_root)(void)) /* The init functions use an explicit stack... */ #define INIT_STACK_BLOCKS 4 -static F_ *init_stack = NULL; +static StgFunPtr *init_stack = NULL; void 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()"); @@ -332,10 +277,10 @@ hs_add_root(void (*init_root)(void)) 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; + init_stack = (StgFunPtr *)bd->start; + init_stack[--init_sp] = (StgFunPtr)stg_init_finish; if (init_root != NULL) { - init_stack[--init_sp] = (F_)init_root; + init_stack[--init_sp] = (StgFunPtr)init_root; } cap->r.rSp = (P_)(init_stack + init_sp); @@ -345,19 +290,37 @@ hs_add_root(void (*init_root)(void)) startupHpc(); -#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(); + + 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"); @@ -372,56 +335,36 @@ hs_exit(void) /* start timing the shutdown */ stat_startExit(); + 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(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(); -#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(); @@ -432,14 +375,24 @@ hs_exit(void) // also outputs the stats (+RTS -s) info. exitStorage(); + /* free the tasks */ + freeScheduler(); + /* free shared Typeable store */ - exitTypeableStore(); + exitGlobalStore(); - /* initialise the stable pointer table */ + /* 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) { @@ -451,15 +404,19 @@ 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 TRACING + endTracing(); + freeTracing(); #endif #if defined(TICKY_TICKY) @@ -467,11 +424,28 @@ hs_exit(void) #endif #if defined(mingw32_HOST_OS) && !defined(THREADED_RTS) - shutdownAsyncIO(); + 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 @@ -484,40 +458,32 @@ shutdownHaskell(void) 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);