[project @ 2002-05-14 08:15:49 by matthewc]

[ghc-hetmet.git] / ghc / rts / MBlock.h

diff --git a/ghc/rts/MBlock.h b/ghc/rts/MBlock.h
index 75ead18..40461a0 100644 (file)
--- a/ghc/rts/MBlock.h
+++ b/ghc/rts/MBlock.h
@@ -1,15 +1,16 @@
 /* -----------------------------------------------------------------------------
- * $Id: MBlock.h,v 1.7 2000/12/04 12:31:21 simonmar Exp $
+ * $Id: MBlock.h,v 1.14 2002/05/14 08:15:49 matthewc Exp $
  *
  * (c) The GHC Team, 1998-1999
  *
  * MegaBlock Allocator interface.
  *
  * ---------------------------------------------------------------------------*/
-
+#ifndef __MBLOCK_H__
+#define __MBLOCK_H__
 extern lnat mblocks_allocated;
 
-#ifdef ENABLE_WIN32_DLL_SUPPORT
+#if defined(mingw32_TARGET_OS)
 extern int is_heap_alloced(const void* p);
 #endif
 
@@ -30,27 +31,46 @@ extern void * getMBlocks(nat n);
 #define HEAP_BASE 0x50000000
 #elif openbsd_TARGET_OS
 #define HEAP_BASE 0x50000000
+
 #elif linux_TARGET_OS
+#if ia64_TARGET_ARCH
+/* Shared libraries are in region 1, text in region 2, data in region 3.
+ * Stack is at the top of region 4.  We use the bottom.
+ */
+#define HEAP_BASE (4L<<61)
+#else
 /* Any ideas?
  */
 #define HEAP_BASE 0x50000000
+#endif
 
 #elif solaris2_TARGET_OS
 /* guess */
 #define HEAP_BASE 0x50000000
 
 #elif osf3_TARGET_OS
+/* ToDo: Perhaps by adjusting this value we can make linking without
+ * -static work (i.e., not generate a core-dumping executable)? */
+#if SIZEOF_VOID_P == 8
+#define HEAP_BASE 0x180000000L
+#else
+#error I have no idea where to begin the heap on a non-64-bit osf3 machine.
+#endif
+
+#elif hpux_TARGET_OS
 /* guess */
 #define HEAP_BASE 0x50000000
 
-#elif hpux_TARGET_OS
+#elif darwin_TARGET_OS
 /* guess */
 #define HEAP_BASE 0x50000000
 
-#elif _WIN32
+#elif defined(mingw32_TARGET_OS) || defined(cygwin32_TARGET_OS)
 /* doesn't matter, we use a reserve/commit algorithm */
 
 #else
 #error Dont know where to get memory from on this architecture
 /* ToDo: memory locations on other architectures */
 #endif
+
+#endif