[project @ 2000-04-03 15:54:49 by simonmar]

[ghc-hetmet.git] / ghc / includes / Stg.h

diff --git a/ghc/includes/Stg.h b/ghc/includes/Stg.h
index e0c42ee..7a2266c 100644 (file)
--- a/ghc/includes/Stg.h
+++ b/ghc/includes/Stg.h
@@ -1,5 +1,5 @@
 /* -----------------------------------------------------------------------------
- * $Id: Stg.h,v 1.7 1999/03/02 19:44:17 sof Exp $
+ * $Id: Stg.h,v 1.25 2000/04/03 15:54:49 simonmar Exp $
  *
  * (c) The GHC Team, 1998-1999
  *
@@ -16,43 +16,63 @@
 #define _POSIX_SOURCE
 #endif
 
+/* If we include "Stg.h" directly, we're in STG code, and we therefore
+ * get all the global register variables, macros etc. that go along
+ * with that.  If "Stg.h" is included via "Rts.h", we're assumed to
+ * be in vanilla C.
+ */
+#ifndef IN_STG_CODE
+# define IN_STG_CODE 1
+#endif
+
+#if IN_STG_CODE == 0
+# ifndef NO_REGS
+#  define NO_REGS                      /* don't define fixed registers */
+# endif
+#endif
+
 /* Configuration */
 #include "config.h"
 #ifdef __HUGS__ /* vile hack till the GHC folks come on board */
 #include "options.h"
 #endif
 
-/* ToDo: Set this flag properly: COMPILER and INTERPRETER should not be mutually exclusive. */
-#ifndef INTERPRETER
-#define COMPILER 1
-#endif
+/* Some macros to handle DLLing (Win32 only at the moment). */
+#include "StgDLL.h"
 
-/* This is a feature test - doesn't belong here. FixMe. */
-#ifdef __MINGW32__
-#define HAVE_WIN32_DLL_SUPPORT
-#endif
+/* Turn lazy blackholing and eager blackholing on/off.
+ *
+ * Using eager blackholing makes things easier to debug because
+ * the blackholes are more predictable - but it's slower and less sexy.
+ *
+ * For now, do lazy and not eager.
+ */
 
-#ifdef HAVE_WIN32_DLL_SUPPORT
-# if __GNUC__ && !defined(__declspec)
-#  define DLLIMPORT
-# else
-#  define DLLIMPORT __declspec(dllimport)
-#  define DLLIMPORT_DATA(x) _imp__##x
-# endif
+/* TICKY_TICKY needs EAGER_BLACKHOLING to verify no double-entries of
+ * single-entry thunks.
+ *
+ * SMP needs EAGER_BLACKHOLING because it has to lock thunks
+ * synchronously, in case another thread is trying to evaluate the
+ * same thunk simultaneously.
+ */
+#if defined(SMP) || defined(TICKY_TICKY)
+#  define EAGER_BLACKHOLING
 #else
-# define DLLIMPORT
+#  define LAZY_BLACKHOLING
 #endif
 
-#ifdef COMPILING_RTS
-#define DLL_IMPORT DLLIMPORT
-#define DLL_IMPORT_RTS
-#define DLL_IMPORT_DATA
-#define DLL_IMPORT_DATA_VAR(x) x
-#else
-#define DLL_IMPORT
-#define DLL_IMPORT_RTS DLLIMPORT
-#define DLL_IMPORT_DATA DLLIMPORT
-#define DLL_IMPORT_DATA_VAR(x) _imp__##x
+/* ToDo: Set this flag properly: COMPILER and INTERPRETER should not be mutually exclusive. */
+#ifndef INTERPRETER
+#define COMPILER 1
+#endif
+
+/* TABLES_NEXT_TO_CODE says whether to assume that info tables are
+ * assumed to reside just before the code for a function.
+ *
+ * UNDEFINING THIS WON'T WORK ON ITS OWN.  You have been warned.
+ */
+#ifndef USE_MINIINTERPRETER
+#define TABLES_NEXT_TO_CODE
 #endif
 
 /* bit macros
@@ -83,36 +103,35 @@ void _stgAssert (char *, unsigned int);
 
 /* Global type definitions*/
 #include "StgTypes.h"
+#include "RtsTypes.h"
 
 /* Global constaints */
 #include "Constants.h"
 
 /* Profiling information */
-#include "Profiling.h"
+#include "StgProf.h"
 
 /* Storage format definitions */
 #include "Closures.h"
+#include "ClosureTypes.h"
 #include "InfoTables.h"
 #include "TSO.h"
 
+/* Simulated-parallel information */
+#include "GranSim.h"
+
+/* Parallel information */
+#include "Parallel.h"
+
 /* STG/Optimised-C related stuff */
+#include "SMP.h"
 #include "MachRegs.h"
 #include "Regs.h"
 #include "TailCalls.h"
+#include "Block.h"
 
-/**
- * Added by Ian McDonald 7/5/98 
- * XXX The position of this code is very
- * important - it must come after the 
- * Regs.h include
- **/
-#ifdef nemesis_TARGET_OS
-#define _NEMESIS_OS_
-#ifndef __LANGUAGE_C
-#define __LANGUAGE_C
-#endif
-#include <nemesis.h>
-#endif
+/* RTS public interface */
+#include "RtsAPI.h"
 
 /* these are all ANSI C headers */
 #include <stdlib.h>
@@ -130,12 +149,13 @@ void _stgAssert (char *, unsigned int);
 #include <unistd.h>
 #endif
 
+#ifdef SMP
+#include <pthread.h>
+#endif
+
 /* GNU mp library */
 #include "gmp.h"
 
-/* Wired-in Prelude identifiers */
-#include "Prelude.h"
-
 /* Storage Manager */
 #include "StgStorage.h"
 
@@ -143,7 +163,6 @@ void _stgAssert (char *, unsigned int);
 #include "ClosureMacros.h"
 #include "InfoMacros.h"
 #include "StgMacros.h"
-#include "StgProf.h"
 #include "PrimOps.h"
 #include "Updates.h"
 #include "StgTicky.h"
@@ -157,19 +176,15 @@ void _stgAssert (char *, unsigned int);
 #include "Hooks.h"
 
 /* Misc stuff without a home */
-#ifdef BUILDING_RTS_DLL
-extern DLLIMPORT char **prog_argv;     /* so we can get at these from Haskell */
-extern DLLIMPORT int    prog_argc;
-#else
-extern char **prog_argv;       /* so we can get at these from Haskell */
-extern int    prog_argc;
-#endif
+DLL_IMPORT_RTS extern char **prog_argv;        /* so we can get at these from Haskell */
+DLL_IMPORT_RTS extern int    prog_argc;
 
 extern char **environ;
 
 /* Creating and destroying an adjustor thunk.
    I cannot make myself create a separate .h file
-   for these two (sof.)
+   for these two (sof.) 
+   
 */
 extern void* createAdjustor(int cconv, StgStablePtr hptr, StgFunPtr wptr);
 extern void  freeHaskellFunctionPtr(void* ptr);