X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=rts%2FRtsStartup.c;h=4f5b1c77a320cd2ccbc3270417f81d91a9a27228;hb=d4050431de1adddedb240e497f77f89301f77070;hp=dba529bb202d96198d011039c969403f5e4daad7;hpb=de6c8e5293c9ef68b597ab2e6d55c3f42a283489;p=ghc-hetmet.git

diff --git a/rts/RtsStartup.c b/rts/RtsStartup.c
index dba529b..4f5b1c7 100644
--- a/rts/RtsStartup.c
+++ b/rts/RtsStartup.c
@@ -19,6 +19,7 @@
 #include "STM.h"        /* initSTM */
 #include "Signals.h"
 #include "RtsSignals.h"
+#include "ThrIOManager.h"
 #include "Timer.h"      /* startTimer, stopTimer */
 #include "Weak.h"
 #include "Ticky.h"
@@ -37,8 +38,9 @@
 #include "FrontPanel.h"
 #endif
 
-#if defined(PROFILING) || defined(DEBUG)
 # include "Profiling.h"
+
+#if defined(PROFILING)
 # include "ProfHeap.h"
 # include "RetainerProfile.h"
 #endif
@@ -137,7 +139,13 @@ hs_init(int *argc, char **argv[])
 	return;
     }
 
-    /* The very first thing we do is grab the start time...just in case we're
+#if defined(DEBUG)
+    /* Start off by initialising the allocator debugging so we can
+     * use it anywhere */
+    initAllocator();
+#endif
+
+    /* Next we do is grab the start time...just in case we're
      * collecting timing statistics.
      */
     stat_startInit();
@@ -191,6 +199,7 @@ 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);
     }
@@ -205,9 +214,6 @@ 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()).
      */
@@ -237,9 +243,7 @@ hs_init(int *argc, char **argv[])
     initThreadLabelTable();
 #endif
 
-#if defined(PROFILING) || defined(DEBUG)
     initProfiling1();
-#endif
 
     /* start the virtual timer 'subsystem'. */
     startTimer();
@@ -248,10 +252,12 @@ hs_init(int *argc, char **argv[])
     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)
@@ -268,7 +274,7 @@ hs_init(int *argc, char **argv[])
     x86_init_fpu();
 #endif
 
-#if defined(THREADED_RTS) && !defined(mingw32_HOST_OS)
+#if defined(THREADED_RTS)
     ioManagerStart();
 #endif
 
@@ -344,19 +350,30 @@ 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();
-#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");
@@ -371,12 +388,18 @@ hs_exit(void)
     /* start timing the shutdown */
     stat_startExit();
     
-#if defined(THREADED_RTS) && !defined(mingw32_HOST_OS)
+#if defined(RTS_USER_SIGNALS)
+    if (RtsFlags.MiscFlags.install_signal_handlers) {
+        freeSignalHandlers();
+    }
+#endif
+
+#if defined(THREADED_RTS)
     ioManagerDie();
 #endif
 
     /* stop all running tasks */
-    exitScheduler();
+    exitScheduler(wait_foreign);
     
 #if defined(GRAN)
     /* end_gr_simulation prints global stats if requested -- HWL */
@@ -386,7 +409,7 @@ hs_exit(void)
     
     /* stop the ticker */
     stopTimer();
-    
+
     /* reset the standard file descriptors to blocking mode */
     resetNonBlockingFd(0);
     resetNonBlockingFd(1);
@@ -431,14 +454,21 @@ hs_exit(void)
     // also outputs the stats (+RTS -s) info.
     exitStorage();
     
+    /* free the tasks */
+    freeScheduler();
+
     /* free shared Typeable store */
     exitTypeableStore();
 
-    /* initialise the stable pointer table */
+    /* free the stable pointer table */
     exitStablePtrTable();
 
-    /* free hash table storage */
-    exitHashTable();
+    freeProfiling1();
+
+#if defined(DEBUG)
+    /* free the thread label table */
+    freeThreadLabelTable();
+#endif
 
 #ifdef RTS_GTK_FRONTPANEL
     if (RtsFlags.GcFlags.frontpanel) {
@@ -450,9 +480,7 @@ hs_exit(void)
     reportCCSProfiling();
 #endif
 
-#if defined(PROFILING) || defined(DEBUG)
     endProfiling();
-#endif
 
 #ifdef PROFILING
     // Originally, this was in report_ccs_profiling().  Now, retainer
@@ -466,11 +494,28 @@ 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
@@ -485,7 +530,8 @@ shutdownHaskellAndExit(int n)
 {
     if (hs_init_count == 1) {
 	OnExitHook();
-	hs_exit();
+	hs_exit_(rtsFalse);
+        // we're about to exit(), no need to wait for foreign calls to return.
 #if defined(PAR)
 	/* really exit (stg_exit() would call shutdownParallelSystem() again) */
 	exit(n);