[project @ 2001-03-13 17:46:56 by rrt]

[ghc-hetmet.git] / ghc / rts / RtsStartup.c

diff --git a/ghc/rts/RtsStartup.c b/ghc/rts/RtsStartup.c
index 07605fc..840ebf2 100644 (file)
--- a/ghc/rts/RtsStartup.c
+++ b/ghc/rts/RtsStartup.c
@@ -1,5 +1,5 @@
 /* -----------------------------------------------------------------------------
- * $Id: RtsStartup.c,v 1.33 2000/03/14 09:55:05 simonmar Exp $
+ * $Id: RtsStartup.c,v 1.49 2001/02/11 17:51:08 simonmar Exp $
  *
  * (c) The GHC Team, 1998-2000
  *
@@ -21,10 +21,16 @@
 #include "Ticky.h"
 #include "StgRun.h"
 #include "StgStartup.h"
-#include "Prelude.h"           /* fixupPreludeRefs */
+#include "Prelude.h"           /* fixupRTStoPreludeRefs */
+#include "HsFFI.h"
+#include "Linker.h"
+
+#if defined(RTS_GTK_FRONTPANEL)
+#include "FrontPanel.h"
+#endif
 
 #if defined(PROFILING) || defined(DEBUG)
-# include "ProfRts.h"
+# include "Profiling.h"
 # include "ProfHeap.h"
 #endif
 
@@ -49,10 +55,31 @@ static int rts_has_started_up = 0;
 static ullong startTime = 0;
 #endif
 
-static void initModules ( void );
+EXTFUN(__init_Prelude);
+static void initModules ( void (*)(void) );
 
 void
-startupHaskell(int argc, char *argv[])
+setProgArgv(int argc, char *argv[])
+{
+   /* Usually this is done by startupHaskell, so we don't need to call this. 
+      However, sometimes Hugs wants to change the arguments which Haskell
+      getArgs >>= ... will be fed.  So you can do that by calling here
+      _after_ calling startupHaskell.
+   */
+   prog_argc = argc;
+   prog_argv = argv;
+}
+
+void
+getProgArgv(int *argc, char **argv[])
+{
+   *argc = prog_argc;
+   *argv = prog_argv;
+}
+
+
+void
+startupHaskell(int argc, char *argv[], void (*init_root)(void))
 {
     /* To avoid repeated initialisations of the RTS */
    if (rts_has_started_up)
@@ -63,7 +90,7 @@ startupHaskell(int argc, char *argv[])
     /* The very first thing we do is grab the start time...just in case we're
      * collecting timing statistics.
      */
-    start_time();
+    stat_startInit();
 
 #ifdef PAR
 /*
@@ -130,9 +157,7 @@ startupHaskell(int argc, char *argv[])
 #endif
 
     /* run the per-module initialisation code */
-#if !defined(INTERPRETER)
-    initModules();
-#endif
+    initModules(init_root);
 
 #if defined(PROFILING) || defined(DEBUG)
     initProfiling2();
@@ -157,11 +182,14 @@ startupHaskell(int argc, char *argv[])
     init_default_handlers();
 #endif
  
-    /* Initialise pointers from the RTS to the prelude */
-    fixupPreludeRefs();
+#ifdef RTS_GTK_FRONTPANEL
+    if (RtsFlags.GcFlags.frontpanel) {
+       initFrontPanel();
+    }
+#endif
 
     /* Record initialization times */
-    end_init();
+    stat_endInit();
 }
 
 /* -----------------------------------------------------------------------------
@@ -180,36 +208,43 @@ startupHaskell(int argc, char *argv[])
       - 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 "__init_<moddule>" in each
+   The code generator inserts a small function "__init_<module>" in each
    module and calls the registration functions in each of the modules
-   it imports.  So, if we call "__init_Main", each reachable module in the
-   program will be registered.
+   it imports.  So, if we call "__init_PrelMain", each reachable module in the
+   program will be registered (because PrelMain.mainIO calls Main.main).
 
    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.
    -------------------------------------------------------------------------- */
 
-#ifndef INTERPRETER
-
 /* The init functions use an explicit stack... 
  */
 #define INIT_STACK_SIZE  (BLOCK_SIZE * 4)
-F_ *init_stack;
+F_ *init_stack = NULL;
+nat init_sp = 0;
 
 static void
-initModules ( void )
+initModules ( void (*init_root)(void) )
 {
-  /* this storage will be reclaimed by the garbage collector,
-   * as a large block.
-   */
-  init_stack = (F_ *)allocate(INIT_STACK_SIZE / sizeof(W_));
+#ifdef SMP
+    Capability cap;
+#else
+#define cap MainRegTable
+#endif
 
-  StgRun((StgFunPtr)stg_init, NULL/* no reg table */);
+    init_sp = 0;
+    init_stack = (F_ *)allocate(INIT_STACK_SIZE / sizeof(W_));
+    init_stack[init_sp++] = (F_)stg_init_ret;
+    init_stack[init_sp++] = (F_)__init_Prelude;
+    if (init_root != NULL) {
+       init_stack[init_sp++] = (F_)init_root;
+    }
+    
+    cap.rSp = (P_)(init_stack + init_sp);
+    StgRun((StgFunPtr)stg_init, &cap);
 }
 
-#endif /* !INTERPRETER */
-
 /* -----------------------------------------------------------------------------
  * Shutting down the RTS - two ways of doing this, one which
  * calls exit(), one that doesn't.
@@ -256,6 +291,10 @@ shutdownHaskell(void)
   resetNonBlockingFd(1);
   resetNonBlockingFd(2);
 
+#if defined(PAR)
+  shutdownParallelSystem(0);
+#endif
+
   /* stop timing the shutdown, we're about to print stats */
   stat_endExit();
 
@@ -264,6 +303,12 @@ shutdownHaskell(void)
    */
   exitStorage();
 
+#ifdef RTS_GTK_FRONTPANEL
+    if (RtsFlags.GcFlags.frontpanel) {
+       stopFrontPanel();
+    }
+#endif
+
 #if defined(PROFILING) || defined(DEBUG)
   endProfiling();
 #endif
@@ -278,10 +323,6 @@ shutdownHaskell(void)
 
   rts_has_started_up=0;
 
-#if defined(PAR)
-  shutdownParallelSystem(0);
-#endif
-
 }
 
 /*