X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=rts%2FRtsStartup.c;h=b9442d2bd5744b3eb6a1c433ebbff07c6f598bf2;hb=9fe7b8ea2136a4a07752b2851840c9366706f832;hp=c55fdfb537c5007678946e6cd0935da0d66bca8b;hpb=1663532f26ae2e68f04d067b11bd177d307637b1;p=ghc-hetmet.git

diff --git a/rts/RtsStartup.c b/rts/RtsStartup.c
index c55fdfb..b9442d2 100644
--- a/rts/RtsStartup.c
+++ b/rts/RtsStartup.c
@@ -71,6 +71,9 @@
 #ifdef HAVE_SIGNAL_H
 #include <signal.h>
 #endif
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
 
 #if USE_PAPI
 #include "Papi.h"
@@ -222,6 +225,20 @@ 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 */
     initTypeableStore();
 
@@ -383,11 +400,7 @@ hs_exit_(rtsBool wait_foreign)
     /* start timing the shutdown */
     stat_startExit();
     
-#if defined(RTS_USER_SIGNALS)
-    if (RtsFlags.MiscFlags.install_signal_handlers) {
-        freeSignalHandlers();
-    }
-#endif
+    OnExitHook();
 
 #if defined(THREADED_RTS)
     ioManagerDie();
@@ -395,7 +408,16 @@ hs_exit_(rtsBool wait_foreign)
 
     /* stop all running tasks */
     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)
@@ -440,6 +462,9 @@ hs_exit_(rtsBool wait_foreign)
     PAR_TICKY_PAR_END();
 #endif
 
+    // uninstall signal handlers
+    resetDefaultHandlers();
+
     /* stop timing the shutdown, we're about to print stats */
     stat_endExit();
     
@@ -528,10 +553,10 @@ shutdownHaskell(void)
 void
 shutdownHaskellAndExit(int n)
 {
-    if (hs_init_count == 1) {
-	OnExitHook();
-	hs_exit_(rtsFalse);
-        // we're about to exit(), no need to wait for foreign calls to return.
+    // 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);
@@ -541,6 +566,15 @@ 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
  */