Profiling support, tools and documentation.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8375 a1c6a512-1295-4272-9138-f99709370657

4 files changed, 88 insertions, 0 deletions

diff --git a/apps/plugins/lib/SOURCES b/apps/plugins/lib/SOURCES
index 4d4247e..0f6e13e 100644
--- a/apps/plugins/lib/SOURCES
+++ b/apps/plugins/lib/SOURCES
@@ -12,3 +12,6 @@ xlcd.c
 #ifdef HAVE_LCD_CHARCELLS
 playergfx.c
 #endif
+#ifdef RB_PROFILE
+profile_plugin.c
+#endif
diff --git a/apps/plugins/lib/profile_plugin.c b/apps/plugins/lib/profile_plugin.c
new file mode 100644
index 0000000..3318476
--- /dev/null
+++ b/apps/plugins/lib/profile_plugin.c
@@ -0,0 +1,38 @@
+/***************************************************************************
+*             __________               __   ___.
+*   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+*   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+*   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+*   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+*                     \/            \/     \/    \/            \/
+* $Id$
+*
+* Passthrough routines for plugin profiling
+*
+* Copyright (C) 2006 Brandon Low
+*
+* All files in this archive are subject to the GNU General Public License.
+* See the file COPYING in the source tree root for full license agreement.
+*
+* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+* KIND, either express or implied.
+*
+****************************************************************************/
+
+#include "plugin.h"
+
+static struct plugin_api *local_rb = NULL; /* global api struct pointer */
+
+void profile_init(struct plugin_api* pa)
+{
+    local_rb = pa;
+}
+
+void __cyg_profile_func_enter(void *this_fn, void *call_site) {
+    (void)call_site;
+    local_rb->profile_func_enter(this_fn, __builtin_return_address(1));
+}
+
+void __cyg_profile_func_exit(void *this_fn, void *call_site) {
+    local_rb->profile_func_exit(this_fn,call_site);
+}
diff --git a/apps/plugins/lib/profile_plugin.h b/apps/plugins/lib/profile_plugin.h
new file mode 100644
index 0000000..71cff37
--- /dev/null
+++ b/apps/plugins/lib/profile_plugin.h
@@ -0,0 +1,35 @@
+/***************************************************************************
+*             __________               __   ___.
+*   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+*   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+*   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+*   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+*                     \/            \/     \/    \/            \/
+* $Id$
+*
+* Passthrough routines for plugin profiling.
+*
+* Copyright (C) 2005 Brandon Low
+*
+* All files in this archive are subject to the GNU General Public License.
+* See the file COPYING in the source tree root for full license agreement.
+*
+* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+* KIND, either express or implied.
+*
+****************************************************************************/
+
+#ifndef __PROFILE_PLUGIN_H__
+#define __PROFILE_PLUGIN_H__
+
+#include "plugin.h"
+
+void profile_init(struct plugin_api* pa);
+
+void __cyg_profile_func_enter(void *this_fn, void *call_site)
+    NO_PROF_ATTR ICODE_ATTR;
+void __cyg_profile_func_exit(void *this_fn, void *call_site)
+    NO_PROF_ATTR ICODE_ATTR;
+
+#endif /* __PROFILE_PLUGIN_H__ */
+
diff --git a/apps/plugins/wav2wv.c b/apps/plugins/wav2wv.c
index 20a4589..812ed17 100644
--- a/apps/plugins/wav2wv.c
+++ b/apps/plugins/wav2wv.c
@@ -17,6 +17,9 @@
  *
  ****************************************************************************/
 #include "plugin.h"
+#ifdef RB_PROFILE
+#include "lib/profile_plugin.h"
+#endif
 
 #include <codecs/libwavpack/wavpack.h>
 
@@ -289,6 +292,15 @@ static int wav2wv (char *filename)
 
 enum plugin_status plugin_start(struct plugin_api* api, void *parameter)
 {
+#ifdef RB_PROFILE
+    /* This doesn't start profiling or anything, it just gives the
+     * profiling functions that are compiled in someplace to call,
+     * this is needed here to let this compile with profiling support
+     * since it calls code from a codec that is compiled with profiling
+     * support */
+    profile_init(api);
+#endif
+
     rb = api;
 
     if (!parameter)