[project @ 2001-07-26 03:26:28 by ken]

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

diff --git a/ghc/rts/MBlock.h b/ghc/rts/MBlock.h
index 0fb902e..437d65d 100644 (file)
--- a/ghc/rts/MBlock.h
+++ b/ghc/rts/MBlock.h
@@ -1,5 +1,7 @@
 /* -----------------------------------------------------------------------------
- * $Id: MBlock.h,v 1.3 1999/01/13 17:25:41 simonm Exp $
+ * $Id: MBlock.h,v 1.10 2001/07/26 03:26:28 ken Exp $
+ *
+ * (c) The GHC Team, 1998-1999
  *
  * MegaBlock Allocator interface.
  *
@@ -7,5 +9,57 @@
 
 extern lnat mblocks_allocated;
 
+#ifdef ENABLE_WIN32_DLL_SUPPORT
+extern int is_heap_alloced(const void* p);
+#endif
+
 extern void * getMBlock(void);
 extern void * getMBlocks(nat n);
+
+#if freebsd2_TARGET_OS || freebsd_TARGET_OS
+/* Executable is loaded from      0x0
+ * Shared libraries are loaded at 0x2000000
+ * Stack is at the top of the address space.  The kernel probably owns
+ * 0x8000000 onwards, so we'll pick 0x5000000.
+ */
+#define HEAP_BASE 0x50000000
+
+#elif netbsd_TARGET_OS
+/* NetBSD i386 shared libs are at 0x40000000
+ */
+#define HEAP_BASE 0x50000000
+#elif openbsd_TARGET_OS
+#define HEAP_BASE 0x50000000
+#elif linux_TARGET_OS
+/* Any ideas?
+ */
+#define HEAP_BASE 0x50000000
+
+#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 macosx_TARGET_OS
+/* guess */
+#define HEAP_BASE 0x50000000
+
+#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