+RTS -xbXXXXX sets the "heap base" to 0xXXXXXX

[ghc-hetmet.git] / rts / sm / MBlock.c

diff --git a/rts/sm/MBlock.c b/rts/sm/MBlock.c
index 85fe02d..601387c 100644 (file)
--- a/rts/sm/MBlock.c
+++ b/rts/sm/MBlock.c
@@ -49,6 +49,18 @@
 
 lnat mblocks_allocated = 0;
 
+#if !defined(mingw32_HOST_OS) && !defined(cygwin32_HOST_OS)
+static caddr_t next_request = 0;
+#endif
+
+void
+initMBlocks(void)
+{
+#if !defined(mingw32_HOST_OS) && !defined(cygwin32_HOST_OS)
+    next_request = (caddr_t)RtsFlags.GcFlags.heapBase;
+#endif
+}
+
 /* -----------------------------------------------------------------------------
    The MBlock Map: provides our implementation of HEAP_ALLOCED()
    -------------------------------------------------------------------------- */
@@ -258,7 +270,6 @@ gen_map_mblocks (lnat size)
 void *
 getMBlocks(nat n)
 {
-  static caddr_t next_request = (caddr_t)HEAP_BASE;
   caddr_t ret;
   lnat size = MBLOCK_SIZE * n;
   nat i;