--- a/gc.c	(revision 34957)
+++ b/gc.c	(working copy)
@@ -319,16 +319,12 @@
     struct gc_list *next;
 };
 
-#define CALC_EXACT_MALLOC_SIZE 0
-
 typedef struct rb_objspace {
     struct {
 	size_t limit;
 	size_t increase;
-#if CALC_EXACT_MALLOC_SIZE
 	size_t allocated_size;
 	size_t allocations;
-#endif
     } malloc_params;
     struct {
 	size_t increment;
@@ -730,10 +726,6 @@
     }
     if (size == 0) size = 1;
 
-#if CALC_EXACT_MALLOC_SIZE
-    size += sizeof(size_t);
-#endif
-
     if ((ruby_gc_stress && !ruby_disable_gc_stress) ||
 	(malloc_increase+size) > malloc_limit) {
 	garbage_collect_with_gvl(objspace);
@@ -747,12 +739,8 @@
 {
     malloc_increase += size;
 
-#if CALC_EXACT_MALLOC_SIZE
     objspace->malloc_params.allocated_size += size;
     objspace->malloc_params.allocations++;
-    ((size_t *)mem)[0] = size;
-    mem = (size_t *)mem + 1;
-#endif
 
     return mem;
 }
@@ -791,11 +779,7 @@
     if (ruby_gc_stress && !ruby_disable_gc_stress)
 	garbage_collect_with_gvl(objspace);
 
-#if CALC_EXACT_MALLOC_SIZE
-    size += sizeof(size_t);
     objspace->malloc_params.allocated_size -= size;
-    ptr = (size_t *)ptr - 1;
-#endif
 
     mem = realloc(ptr, size);
     if (!mem) {
@@ -808,11 +792,7 @@
     }
     malloc_increase += size;
 
-#if CALC_EXACT_MALLOC_SIZE
     objspace->malloc_params.allocated_size += size;
-    ((size_t *)mem)[0] = size;
-    mem = (size_t *)mem + 1;
-#endif
 
     return mem;
 }
@@ -820,14 +800,6 @@
 static void
 vm_xfree(rb_objspace_t *objspace, void *ptr)
 {
-#if CALC_EXACT_MALLOC_SIZE
-    size_t size;
-    ptr = ((size_t *)ptr) - 1;
-    size = ((size_t*)ptr)[0];
-    objspace->malloc_params.allocated_size -= size;
-    objspace->malloc_params.allocations--;
-#endif
-
     free(ptr);
 }
 
@@ -3401,7 +3373,6 @@
 }
 
 
-#if CALC_EXACT_MALLOC_SIZE
 /*
  *  call-seq:
  *     GC.malloc_allocated_size -> Integer
@@ -3411,8 +3382,8 @@
  *  It returns the allocated size by malloc().
  */
 
-static VALUE
-gc_malloc_allocated_size(VALUE self)
+VALUE
+rb_gc_malloc_allocated_size(VALUE self)
 {
     return UINT2NUM((&rb_objspace)->malloc_params.allocated_size);
 }
@@ -3426,12 +3397,11 @@
  *  It returns the number of allocated memory object by malloc().
  */
 
-static VALUE
-gc_malloc_allocations(VALUE self)
+VALUE
+rb_gc_malloc_allocations(VALUE self)
 {
     return UINT2NUM((&rb_objspace)->malloc_params.allocations);
 }
-#endif
 
 static VALUE
 gc_profile_record_get(void)
@@ -3616,6 +3586,8 @@
     rb_define_singleton_method(rb_mGC, "start", rb_gc_start, 0);
     rb_define_singleton_method(rb_mGC, "enable", rb_gc_enable, 0);
     rb_define_singleton_method(rb_mGC, "disable", rb_gc_disable, 0);
+    rb_define_singleton_method(rb_mGC, "malloc_allocated_size", rb_gc_malloc_allocated_size, 0);
+    rb_define_singleton_method(rb_mGC, "malloc_allocations", rb_gc_malloc_allocations, 0);
     rb_define_singleton_method(rb_mGC, "stress", gc_stress_get, 0);
     rb_define_singleton_method(rb_mGC, "stress=", gc_stress_set, 1);
     rb_define_singleton_method(rb_mGC, "count", gc_count, 0);
@@ -3630,6 +3602,7 @@
     rb_define_singleton_method(rb_mProfiler, "result", gc_profile_result, 0);
     rb_define_singleton_method(rb_mProfiler, "report", gc_profile_report, -1);
     rb_define_singleton_method(rb_mProfiler, "total_time", gc_profile_total_time, 0);
+    rb_define_singleton_method(rb_mProfiler, "data", gc_profile_record_get, 0);
 
     rb_mObSpace = rb_define_module("ObjectSpace");
     rb_define_module_function(rb_mObSpace, "each_object", os_each_obj, -1);
@@ -3649,9 +3622,4 @@
     rb_define_method(rb_mKernel, "object_id", rb_obj_id, 0);
 
     rb_define_module_function(rb_mObSpace, "count_objects", count_objects, -1);
-
-#if CALC_EXACT_MALLOC_SIZE
-    rb_define_singleton_method(rb_mGC, "malloc_allocated_size", gc_malloc_allocated_size, 0);
-    rb_define_singleton_method(rb_mGC, "malloc_allocations", gc_malloc_allocations, 0);
-#endif
 }