diff options
Diffstat (limited to 'obj_map.c')
| -rw-r--r-- | obj_map.c | 23 |
1 files changed, 12 insertions, 11 deletions
@@ -13,14 +13,14 @@ * modified is included with the above copyright notice. */ +#include "private/gc_priv.h" + /* 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" - /* Consider pointers that are offset bytes displaced from the beginning */ /* of an object to be valid. */ @@ -45,11 +45,11 @@ void GC_register_displacement_inner(size_t offset) } #ifdef MARK_BIT_PER_GRANULE -/* Add a heap block map for objects of size granules to obj_map. */ -/* Return FALSE on failure. */ -/* A size of 0 granules is used for large objects. */ -GC_bool GC_add_map_entry(size_t granules) -{ + /* Add a heap block map for objects of size granules to obj_map. */ + /* Return FALSE on failure. */ + /* A size of 0 granules is used for large objects. */ + GC_bool GC_add_map_entry(size_t granules) + { unsigned displ; short * new_map; @@ -73,17 +73,18 @@ GC_bool GC_add_map_entry(size_t granules) } GC_obj_map[granules] = new_map; return(TRUE); -} + } #endif -static GC_bool offsets_initialized = FALSE; - void GC_initialize_offsets(void) { + static GC_bool offsets_initialized = FALSE; + if (!offsets_initialized) { int i; if (GC_all_interior_pointers) { - for (i = 0; i < VALID_OFFSET_SZ; ++i) GC_valid_offsets[i] = TRUE; + for (i = 0; i < VALID_OFFSET_SZ; ++i) + GC_valid_offsets[i] = TRUE; } offsets_initialized = TRUE; } |