1 files changed, 69 insertions, 0 deletions
diff --git a/cpukit/libcsupport/src/free.c b/cpukit/libcsupport/src/free.c
new file mode 100644
index 0000000000..160e560bba
--- /dev/null
+++ b/cpukit/libcsupport/src/free.c
@@ -0,0 +1,69 @@
+/*
+ *  calloc()
+ *
+ *  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 <stdlib.h>
+
+void free(
+  void *ptr
+)
+{
+  MSBUMP(free_calls, 1);
+
+  if ( !ptr )
+    return;
+
+  #if defined(RTEMS_HEAP_DEBUG)
+    _Protected_heap_Walk( &RTEMS_Malloc_Heap, 0, FALSE );
+  #endif
+
+  /*
+   *  Do not attempt to free memory if in a critical section or ISR.
+   */
+
+  if (_System_state_Is_up(_System_state_Get())) {
+    if ((_Thread_Dispatch_disable_level > 0) || (_ISR_Nest_level > 0)) {
+      Chain_Append(&RTEMS_Malloc_GC_list, (Chain_Node *)ptr);
+      return;
+    }
+  }
+
+  #if defined(RTEMS_MALLOC_BOUNDARY_HELPERS)
+    /*
+     *  If configured, check the boundary area
+     */
+    if ( rtems_malloc_boundary_helpers )
+      (*rtems_malloc_boundary_helpers->at_free)(ptr);
+  #endif
+
+  /*
+   *  If configured, update the statistics
+   */
+  if ( rtems_malloc_statistics_helpers )
+    (*rtems_malloc_statistics_helpers->at_free)(ptr);
+
+  if ( !_Protected_heap_Free( &RTEMS_Malloc_Heap, ptr ) ) {
+    printk( "Program heap: free of bad pointer %p -- range %p - %p \n",
+      ptr,
+      RTEMS_Malloc_Heap.start,
+      RTEMS_Malloc_Heap.end
+    );
+  }
+
+}
+#endif