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authorJoel Sherrill <joel.sherrill@OARcorp.com>2007-12-18 20:36:40 +0000
committerJoel Sherrill <joel.sherrill@OARcorp.com>2007-12-18 20:36:40 +0000
commit543fe820616f31350366ab61052050303d17dd25 (patch)
treea2e4702be2cd9988ed341586c1c8c976b8ba3bb8 /cpukit/libcsupport/src/malloc_report_statistics_plugin.c
parent2007-12-18 Joel Sherrill <joel.sherrill@OARcorp.com> (diff)
downloadrtems-543fe820616f31350366ab61052050303d17dd25.tar.bz2
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.
Diffstat (limited to 'cpukit/libcsupport/src/malloc_report_statistics_plugin.c')
-rw-r--r--cpukit/libcsupport/src/malloc_report_statistics_plugin.c60
1 files changed, 60 insertions, 0 deletions
diff --git a/cpukit/libcsupport/src/malloc_report_statistics_plugin.c b/cpukit/libcsupport/src/malloc_report_statistics_plugin.c
new file mode 100644
index 0000000000..2f00477d44
--- /dev/null
+++ b/cpukit/libcsupport/src/malloc_report_statistics_plugin.c
@@ -0,0 +1,60 @@
+/*
+ * malloc_report_statistics with plugin 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 "inttypes.h"
+
+void malloc_report_statistics_with_plugin(
+ void *context,
+ rtems_printk_plugin_t print
+)
+{
+ rtems_malloc_statistics_t *s;
+ uint32_t allocated;
+
+ s = &rtems_malloc_statistics;
+
+ allocated = s->lifetime_allocated - s->lifetime_freed;
+
+ (*print)(
+ context,
+ "Malloc statistics\n"
+ " avail:%"PRIu32"k allocated:%"PRIu32"k (%"PRId32"%%) "
+ "max:%"PRIu32"k (%"PRIu32"%%)"
+ " lifetime:%"PRIuMAX"k freed:%"PRIuMAX"k\n",
+ s->space_available / 1024,
+ allocated / 1024,
+ /* avoid float! */
+ (allocated * 100) / s->space_available,
+ s->max_depth / 1024,
+ (s->max_depth * 100) / s->space_available,
+ s->lifetime_allocated / 1024,
+ s->lifetime_freed / 1024
+ );
+ (*print)(
+ context,
+ " Call counts: malloc:%"PRIu32" free:%"PRIu32
+ " realloc:%"PRIu32" calloc:%"PRIu32"\n",
+ s->malloc_calls,
+ s->free_calls,
+ s->realloc_calls,
+ s->calloc_calls
+ );
+}
+
+#endif