2008-01-29 Joel Sherrill <joel.sherrill@OARcorp.com>

	* libcsupport/Makefile.am, libcsupport/include/rtems/malloc.h,
	libcsupport/src/malloc_walk.c, libcsupport/src/posix_memalign.c,
	libcsupport/src/realloc.c, score/src/heapwalk.c: Add rtems_memalign
	as helper and as exposed nmemalign variant with few restrictions.
	Also turn on compilation of _Heap_Walk but make forced calls to it
	conditionally compiled. This should allow more flexibility to the
	user as to run-time checking of the heap.
	* libcsupport/src/rtems_memalign.c: New file.

1 files changed, 5 insertions, 5 deletions

diff --git a/cpukit/libcsupport/src/realloc.c b/cpukit/libcsupport/src/realloc.c
index cba244cc37..745568c49d 100644
--- a/cpukit/libcsupport/src/realloc.c
+++ b/cpukit/libcsupport/src/realloc.c
@@ -54,6 +54,11 @@ void *realloc(
     return (void *) 0;
   }
 
+  if ( !_Protected_heap_Get_block_size(&RTEMS_Malloc_Heap, ptr, &old_size) ) {
+    errno = EINVAL;
+    return (void *) 0;
+  }
+
   /*
    *  If block boundary integrity checking is enabled, then
    *  we need to account for the boundary memory again.
@@ -89,11 +94,6 @@ void *realloc(
     return (void *) 0;
   }
 
-  if ( !_Protected_heap_Get_block_size(&RTEMS_Malloc_Heap, ptr, &old_size) ) {
-    errno = EINVAL;
-    return (void *) 0;
-  }
-
   memcpy( new_area, ptr, (size < old_size) ? size : old_size );
   free( ptr );