Imported gcc-4.4.3

[msp430-gcc.git] / boehm-gc / obj_map.c

diff --git a/boehm-gc/obj_map.c b/boehm-gc/obj_map.c
deleted file mode 100644 (file)
index d002d65..0000000
--- a/boehm-gc/obj_map.c
+++ /dev/null
@@ -1,147 +0,0 @@
-/* 
- * Copyright 1988, 1989 Hans-J. Boehm, Alan J. Demers
- * Copyright (c) 1991, 1992 by Xerox Corporation.  All rights reserved.
- * Copyright (c) 1999-2001 by Hewlett-Packard Company. All rights reserved.
- *
- * THIS MATERIAL IS PROVIDED AS IS, WITH ABSOLUTELY NO WARRANTY EXPRESSED
- * OR IMPLIED.  ANY USE IS AT YOUR OWN RISK.
- *
- * Permission is hereby granted to use or copy this program
- * for any purpose,  provided the above notices are retained on all copies.
- * Permission to modify the code and to distribute modified code is granted,
- * provided the above notices are retained, and a notice that the code was
- * modified is included with the above copyright notice.
- */
-  
-/* Routines for maintaining maps describing heap block
- * layouts for various object sizes.  Allows fast pointer validity checks
- * and fast location of object start locations on machines (such as SPARC)
- * with slow division.
- */
- 
-# include "private/gc_priv.h"
-
-map_entry_type * GC_invalid_map = 0;
-
-/* Invalidate the object map associated with a block.  Free blocks     */
-/* are identified by invalid maps.                                     */
-void GC_invalidate_map(hhdr)
-hdr *hhdr;
-{
-    register int displ;
-    
-    if (GC_invalid_map == 0) {
-        GC_invalid_map = (map_entry_type *)GC_scratch_alloc(MAP_SIZE);
-        if (GC_invalid_map == 0) {
-            GC_err_printf0(
-               "Cant initialize GC_invalid_map: insufficient memory\n");
-            EXIT();
-        }
-        for (displ = 0; displ < HBLKSIZE; displ++) {
-            MAP_ENTRY(GC_invalid_map, displ) = OBJ_INVALID;
-        }
-    }
-    hhdr -> hb_map = GC_invalid_map;
-}
-
-/* Consider pointers that are offset bytes displaced from the beginning */
-/* of an object to be valid.                                            */
-
-# if defined(__STDC__) || defined(__cplusplus)
-    void GC_register_displacement(GC_word offset)
-# else
-    void GC_register_displacement(offset) 
-    GC_word offset;
-# endif
-{
-    DCL_LOCK_STATE;
-    
-    DISABLE_SIGNALS();
-    LOCK();
-    GC_register_displacement_inner(offset);
-    UNLOCK();
-    ENABLE_SIGNALS();
-}
-
-void GC_register_displacement_inner(offset) 
-word offset;
-{
-    register unsigned i;
-    word map_entry = BYTES_TO_WORDS(offset);
-    
-    if (offset >= VALID_OFFSET_SZ) {
-        ABORT("Bad argument to GC_register_displacement");
-    }
-    if (map_entry > MAX_OFFSET) map_entry = OFFSET_TOO_BIG;
-    if (!GC_valid_offsets[offset]) {
-      GC_valid_offsets[offset] = TRUE;
-      GC_modws_valid_offsets[offset % sizeof(word)] = TRUE;
-      if (!GC_all_interior_pointers) {
-        for (i = 0; i <= MAXOBJSZ; i++) {
-          if (GC_obj_map[i] != 0) {
-             if (i == 0) {
-               GC_obj_map[i][offset] = (map_entry_type)map_entry;
-             } else {
-               register unsigned j;
-               register unsigned lb = WORDS_TO_BYTES(i);
-               
-               if (offset < lb) {
-                 for (j = offset; j < HBLKSIZE; j += lb) {
-                   GC_obj_map[i][j] = (map_entry_type)map_entry;
-                 }
-               }
-             }
-          }
-       }
-      }
-    }
-}
-
-
-/* Add a heap block map for objects of size sz to obj_map.     */
-/* Return FALSE on failure.                                    */
-GC_bool GC_add_map_entry(sz)
-word sz;
-{
-    register unsigned obj_start;
-    register unsigned displ;
-    register map_entry_type * new_map;
-    word map_entry;
-    
-    if (sz > MAXOBJSZ) sz = 0;
-    if (GC_obj_map[sz] != 0) {
-        return(TRUE);
-    }
-    new_map = (map_entry_type *)GC_scratch_alloc(MAP_SIZE);
-    if (new_map == 0) return(FALSE);
-#   ifdef PRINTSTATS
-        GC_printf1("Adding block map for size %lu\n", (unsigned long)sz);
-#   endif
-    for (displ = 0; displ < HBLKSIZE; displ++) {
-        MAP_ENTRY(new_map,displ) = OBJ_INVALID;
-    }
-    if (sz == 0) {
-        for(displ = 0; displ <= HBLKSIZE; displ++) {
-            if (OFFSET_VALID(displ)) {
-               map_entry = BYTES_TO_WORDS(displ);
-               if (map_entry > MAX_OFFSET) map_entry = OFFSET_TOO_BIG;
-                MAP_ENTRY(new_map,displ) = (map_entry_type)map_entry;
-            }
-        }
-    } else {
-        for (obj_start = 0;
-             obj_start + WORDS_TO_BYTES(sz) <= HBLKSIZE;
-             obj_start += WORDS_TO_BYTES(sz)) {
-             for (displ = 0; displ < WORDS_TO_BYTES(sz); displ++) {
-                 if (OFFSET_VALID(displ)) {
-                    map_entry = BYTES_TO_WORDS(displ);
-                    if (map_entry > MAX_OFFSET) map_entry = OFFSET_TOO_BIG;
-                     MAP_ENTRY(new_map, obj_start + displ) =
-                                               (map_entry_type)map_entry;
-                 }
-             }
-        }
-    }
-    GC_obj_map[sz] = new_map;
-    return(TRUE);
-}