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.

1 files changed, 101 insertions, 0 deletions

diff --git a/cpukit/libcsupport/include/rtems/malloc.h b/cpukit/libcsupport/include/rtems/malloc.h
new file mode 100644
index 0000000000..abf31f8406
--- /dev/null
+++ b/cpukit/libcsupport/include/rtems/malloc.h
@@ -0,0 +1,101 @@
+/**
+ * @file rtems/malloc.h
+ */
+
+/*
+ *  RTEMS Malloc Extensions
+ *
+ *  COPYRIGHT (c) 1989-1997.
+ *  On-Line Applications Research Corporation (OAR).
+ *
+ *  The license and distribution terms for this file may in
+ *  the file LICENSE in this distribution or at
+ *  http://www.rtems.com/license/LICENSE.
+ *
+ * $ld:
+ */
+
+#ifndef _RTEMS_MALLOC_H
+#define _RTEMS_MALLOC_H
+
+#include <rtems.h>
+#include <rtems/bspIo.h>
+
+#include <stdint.h>
+
+/*
+ *  Malloc Statistics Structure
+ */
+typedef struct {
+    uint32_t    space_available;             /* current size of malloc area */
+    uint32_t    malloc_calls;                /* # calls to malloc */
+    uint32_t    free_calls;
+    uint32_t    realloc_calls;
+    uint32_t    calloc_calls;
+    uint32_t    max_depth;		     /* most ever malloc'd at 1 time */
+    uintmax_t   lifetime_allocated;
+    uintmax_t   lifetime_freed;
+} rtems_malloc_statistics_t;
+
+/*
+ *  Malloc statistics plugin
+ */
+typedef struct {
+  void (*initialize)(void);
+  void (*at_malloc)(void *);
+  void (*at_free)(void *);
+} rtems_malloc_statististics_functions_t;
+
+extern rtems_malloc_statististics_functions_t 
+  rtems_malloc_statistics_helpers_table;
+extern rtems_malloc_statististics_functions_t *rtems_malloc_statistics_helpers;
+
+/*
+ *  Malloc boundary support plugin
+ */
+typedef struct {
+  void     (*initialize)(void);
+  uint32_t (*overhead)(void);
+  void     (*at_malloc)(void *, size_t);
+  void     (*at_free)(void *);
+  void     (*at_realloc)(void *, size_t);
+} rtems_malloc_boundary_functions_t;
+
+extern rtems_malloc_boundary_functions_t rtems_malloc_boundary_helpers_table;
+extern rtems_malloc_boundary_functions_t *rtems_malloc_boundary_helpers;
+
+
+
+/** @brief Print Malloc Statistic Usage Report
+ *
+ *  This method fills in the called provided malloc statistics area.
+ *
+ *  @return This method returns 0 if successful and -1 on error.
+ */
+int malloc_get_statistics(
+  rtems_malloc_statistics_t *stats
+);
+
+/** @brief Print Malloc Statistic Usage Report
+ *
+ *  This method prints a malloc statistics report.
+ *
+ *  @note It uses printk to print the report.
+ */
+void malloc_report_statistics(void);
+
+/** @brief Print Malloc Statistic Usage Report 
+ *
+ *  This method prints a malloc statistics report.
+ *
+ *  @param[in] context is the context to pass to the print handler 
+ *  @param[in] print is the print handler 
+ *
+ *  @note It uses the CALLER's routine to print the report.
+ */
+void malloc_report_statistics_with_plugin(
+  void                  *context,
+  rtems_printk_plugin_t  print
+);
+
+#endif