[project @ 2003-09-23 15:38:35 by simonmar]

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

diff --git a/ghc/includes/Rts.h b/ghc/includes/Rts.h
index 77f095c..d6f5eb9 100644 (file)
--- a/ghc/includes/Rts.h
+++ b/ghc/includes/Rts.h
@@ -1,5 +1,5 @@
 /* -----------------------------------------------------------------------------
- * $Id: Rts.h,v 1.6 1999/02/05 16:02:27 simonm Exp $
+ * $Id: Rts.h,v 1.22 2002/12/19 17:57:39 panne Exp $
  *
  * (c) The GHC Team, 1998-1999
  *
@@ -10,47 +10,73 @@
 #ifndef RTS_H
 #define RTS_H
 
-#ifndef NO_REGS
-#define NO_REGS                        /* don't define fixed registers */
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#ifndef IN_STG_CODE
+#define IN_STG_CODE 0
 #endif
 #include "Stg.h"
 
 /* -----------------------------------------------------------------------------
-   Miscellaneous garbage
+   RTS Exit codes
    -------------------------------------------------------------------------- */
 
-#if ! defined(EXIT_SUCCESS) || ! defined(EXIT_FAILURE)
-/* "stdlib.h" should have defined these; but at least
-   on SunOS 4.1.3, this is not so.
-*/
-#define EXIT_SUCCESS 0
-#define EXIT_FAILURE 1
-#endif
+/* 255 is allegedly used by dynamic linkers to report linking failure */
+#define EXIT_INTERNAL_ERROR 254
+#define EXIT_DEADLOCK       253
+#define EXIT_INTERRUPTED    252
+#define EXIT_HEAPOVERFLOW   251
+#define EXIT_KILLED         250
+
+/* -----------------------------------------------------------------------------
+   Miscellaneous garbage
+   -------------------------------------------------------------------------- */
 
 /* declarations for runtime flags/values */
 #define MAX_RTS_ARGS 32
 
+#ifdef _WIN32
+/* On the yucky side..suppress -Wmissing-declarations warnings when
+ * including <windows.h>
+ */
+extern void* GetCurrentFiber ( void );
+extern void* GetFiberData ( void );
+#endif
+
 /* -----------------------------------------------------------------------------
-   Useful typedefs
+   Assertions and Debuggery
    -------------------------------------------------------------------------- */
 
-typedef unsigned int  nat;           /* at least 32 bits (like int) */
-typedef unsigned long lnat;          /* at least 32 bits            */
-typedef unsigned long long ullong;   /* at least 32 bits            */
-  
-typedef enum { 
-    rtsFalse = 0, 
-    rtsTrue 
-} rtsBool;
+#define IF_RTSFLAGS(c,s)  if (RtsFlags.c) { s; }
 
 /* -----------------------------------------------------------------------------
    Assertions and Debuggery
    -------------------------------------------------------------------------- */
 
-#ifndef DEBUG
+#ifdef DEBUG
+#define IF_DEBUG(c,s)  if (RtsFlags.DebugFlags.c) { s; }
+#else
 #define IF_DEBUG(c,s)  doNothing()
+#endif
+
+#ifdef DEBUG
+#define DEBUG_ONLY(s) s
 #else
-#define IF_DEBUG(c,s)  if (RtsFlags.DebugFlags.c) { s; }
+#define DEBUG_ONLY(s) doNothing()
+#endif
+
+#if defined(GRAN) && defined(DEBUG)
+#define IF_GRAN_DEBUG(c,s)  if (RtsFlags.GranFlags.Debug.c) { s; }
+#else
+#define IF_GRAN_DEBUG(c,s)  doNothing()
+#endif
+
+#if defined(PAR) && defined(DEBUG)
+#define IF_PAR_DEBUG(c,s)  if (RtsFlags.ParFlags.Debug.c) { s; }
+#else
+#define IF_PAR_DEBUG(c,s)  doNothing()
 #endif
 
 /* -----------------------------------------------------------------------------
@@ -58,7 +84,7 @@ typedef enum {
    -------------------------------------------------------------------------- */
 
 #ifdef __GNUC__     /* Avoid spurious warnings                             */
-#if __GNUC__ >= 2 && __GNUC_MINOR__ >= 7
+#if (__GNUC__ == 2 && __GNUC_MINOR__ >= 7) || __GNUC__ >= 3
 #define STG_NORETURN  __attribute__ ((noreturn))
 #define STG_UNUSED    __attribute__ ((unused))
 #else
@@ -74,17 +100,13 @@ typedef enum {
    Useful macros and inline functions
    -------------------------------------------------------------------------- */
 
-/* 
- * Use this on the RHS of macros which expand to nothing
- * to make sure that the macro can be used in a context which
- * demands a non-empty statement.
- */
-
-#define doNothing() do { } while (0)
-
 #define stg_min(a,b) ({typeof(a) _a = (a), _b = (b); _a <= _b ? _a : _b; })
 #define stg_max(a,b) ({typeof(a) _a = (a), _b = (b); _a <= _b ? _b : _a; })
 
-#define UNUSED __attribute__((unused))
+/* -------------------------------------------------------------------------- */
+
+#ifdef __cplusplus
+}
+#endif
 
-#endif RTS_H
+#endif /* RTS_H */