From 543fe820616f31350366ab61052050303d17dd25 Mon Sep 17 00:00:00 2001
From: Joel Sherrill <joel.sherrill@OARcorp.com>
Date: Tue, 18 Dec 2007 20:36:40 +0000
Subject: 2007-12-18	Joel Sherrill <joel.sherrill@oarcorp.com>

	* libcsupport/Makefile.am, libcsupport/preinstall.am,
	libcsupport/src/malloc.c, libcsupport/src/mallocinfo.c,
	libmisc/Makefile.am, libmisc/shell/main_mallocinfo.c,
	libmisc/shell/shellconfig.h: Split malloc.c into multiple files with
	one function per file. Also split out statistics into a separate file
	which can be plugged in dynamically. Right now, it is always in. I
	suspect that splitting the file removed more code than leaving
	statistics in. I tinkered with malloc information command in the
	shell. I resurrected the malloc arena code as malloc boundary. This
	code is now compiled all the time even though it does not appear to
	work.
	* libcsupport/include/rtems/malloc.h, libcsupport/src/_calloc_r.c,
	libcsupport/src/_free_r.c, libcsupport/src/_malloc_r.c,
	libcsupport/src/_realloc_r.c, libcsupport/src/calloc.c,
	libcsupport/src/free.c, libcsupport/src/malloc_boundary.c,
	libcsupport/src/malloc_get_statistics.c,
	libcsupport/src/malloc_initialize.c, libcsupport/src/malloc_p.h,
	libcsupport/src/malloc_report_statistics.c,
	libcsupport/src/malloc_report_statistics_plugin.c,
	libcsupport/src/malloc_statistics_helpers.c,
	libcsupport/src/malloc_walk.c, libcsupport/src/realloc.c,
	libmisc/shell/main_perioduse.c: New files.
---
 cpukit/libcsupport/src/free.c | 69 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 69 insertions(+)
 create mode 100644 cpukit/libcsupport/src/free.c

(limited to 'cpukit/libcsupport/src/free.c')

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
-- 
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