X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=ghc%2Frts%2FMBlock.h;h=40461a0ef6fdd688a7825677e64a3a24d889ea5c;hb=05a9c035960327b23bad8d8dc501141b183f33b5;hp=52467e5b78c80f4a2b86e788ba044830259bf541;hpb=9bebeb69fe3afbee2ef2617745ad49a3eecb1aab;p=ghc-hetmet.git

diff --git a/ghc/rts/MBlock.h b/ghc/rts/MBlock.h
index 52467e5..40461a0 100644
--- a/ghc/rts/MBlock.h
+++ b/ghc/rts/MBlock.h
@@ -1,17 +1,76 @@
 /* -----------------------------------------------------------------------------
- * $Id: MBlock.h,v 1.5 1999/03/03 19:04:57 sof 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 HAVE_WIN32_DLL_SUPPORT
+#if defined(mingw32_TARGET_OS)
 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
+#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 darwin_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
+
+#endif