/* -----------------------------------------------------------------------------
- * $Id: Storage.c,v 1.59 2002/02/04 20:21:22 sof Exp $
+ * $Id: Storage.c,v 1.64 2002/04/25 08:57:51 simonmar Exp $
*
* (c) The GHC Team, 1998-1999
*
#include "RetainerProfile.h" // for counting memory blocks (memInventory)
+#ifdef darwin_TARGET_OS
+#include <mach-o/getsect.h>
+unsigned long macho_etext = 0;
+unsigned long macho_edata = 0;
+
+static void macosx_get_memory_layout(void)
+{
+ struct segment_command *seg;
+
+ seg = getsegbyname("__TEXT");
+ macho_etext = seg->vmaddr + seg->vmsize;
+ seg = getsegbyname("__DATA");
+ macho_edata = seg->vmaddr + seg->vmsize;
+}
+#endif
+
StgClosure *caf_list = NULL;
bdescr *small_alloc_list; /* allocate()d small objects */
step *stp;
generation *gen;
+#if defined(darwin_TARGET_OS)
+ macosx_get_memory_layout();
+#endif
+
+ /* Sanity check to make sure we are able to make the distinction
+ * between closures and infotables
+ */
+ if (!LOOKS_LIKE_GHC_INFO(&stg_BLACKHOLE_info)) {
+ barf("LOOKS_LIKE_GHC_INFO+ is incorrectly defined");
+ exit(0);
+ }
+ if (LOOKS_LIKE_GHC_INFO(&stg_dummy_ret_closure)) {
+ barf("LOOKS_LIKE_GHC_INFO- is incorrectly defined");
+ exit(0);
+ }
+ if (LOOKS_LIKE_STATIC_CLOSURE(&stg_BLACKHOLE_info)) {
+ barf("LOOKS_LIKE_STATIC_CLOSURE- is incorrectly defined");
+ exit(0);
+ }
+ if (!LOOKS_LIKE_STATIC_CLOSURE(&stg_dummy_ret_closure)) {
+ barf("LOOKS_LIKE_STATIC_CLOSURE+ is incorrectly defined");
+ exit(0);
+ }
+
if (RtsFlags.GcFlags.maxHeapSize != 0 &&
RtsFlags.GcFlags.heapSizeSuggestion >
RtsFlags.GcFlags.maxHeapSize) {
return allocate(n);
}
+ // we always return 8-byte aligned memory. bd->free must be
+ // 8-byte aligned to begin with, so we just round up n to
+ // the nearest multiple of 8 bytes.
+ n = (n+7) & ~7;
+
// If we don't have a block of pinned objects yet, or the current
// one isn't large enough to hold the new object, allocate a new one.
if (bd == NULL || (bd->free + n) > (bd->start + BLOCK_SIZE_W)) {