1 files changed, 75 insertions, 0 deletions
diff --git a/cpukit/libcsupport/src/malloc_statistics_helpers.c b/cpukit/libcsupport/src/malloc_statistics_helpers.c
new file mode 100644
index 0000000000..fcd9a5cbde
--- /dev/null
+++ b/cpukit/libcsupport/src/malloc_statistics_helpers.c
@@ -0,0 +1,75 @@
+
+/*
+ *  _calloc_r Implementation
+ *
+ *  COPYRIGHT (c) 1989-2007.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  The license and distribution terms for this file may be
+ *  found in the file LICENSE in this distribution or at
+ *  http://www.rtems.com/license/LICENSE.
+ *
+ *  $Id$
+ */
+
+#if HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#ifdef RTEMS_NEWLIB
+#include "malloc_p.h"
+
+#include <sys/reent.h>
+#include <stdlib.h>
+
+
+static void rtems_malloc_statistics_initialize( void )
+{
+  /*
+   * Zero all the statistics
+   */
+  (void) memset(&rtems_malloc_statistics, 0, sizeof(rtems_malloc_statistics));
+}
+
+static void rtems_malloc_statistics_at_malloc(
+  void *pointer
+)
+{
+  uintptr_t actual_size = 0;
+  uint32_t current_depth;
+  rtems_malloc_statistics_t *s = &rtems_malloc_statistics;
+
+  if ( !pointer )
+    return;
+
+  _Protected_heap_Get_block_size(RTEMS_Malloc_Heap, pointer, &actual_size);
+
+  MSBUMP(lifetime_allocated, actual_size);
+
+  current_depth = (uint32_t) (s->lifetime_allocated - s->lifetime_freed);
+  if (current_depth > s->max_depth)
+      s->max_depth = current_depth;
+}
+
+/*
+ *  If the pointer is not in the heap, then we won't be able to get its
+ *  size and thus we skip updating the statistics.
+ */
+static void rtems_malloc_statistics_at_free(
+  void *pointer
+)
+{
+  uintptr_t size;
+
+  if (_Protected_heap_Get_block_size(RTEMS_Malloc_Heap, pointer, &size) ) {
+    MSBUMP(lifetime_freed, size);
+  }
+}
+
+rtems_malloc_statistics_functions_t rtems_malloc_statistics_helpers_table = {
+  rtems_malloc_statistics_initialize,
+  rtems_malloc_statistics_at_malloc,
+  rtems_malloc_statistics_at_free,
+};
+
+#endif