Accept FS#7264 'Build with -Os switch for coldfire targets'.

Introduces MEM_FUNCTION_WRAPPERS(api) macro which adds wrappers 
functions to a plugin to make plugins link correctly when gcc
calls mem* functions directly.


git-svn-id: svn://svn.rockbox.org/rockbox/trunk@13625 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 44 insertions, 0 deletions

diff --git a/apps/plugins/lib/mem_function_wrappers.h b/apps/plugins/lib/mem_function_wrappers.h
new file mode 100644
index 0000000000..ec3872c4c1
--- /dev/null
+++ b/apps/plugins/lib/mem_function_wrappers.h
@@ -0,0 +1,44 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2007 Nils Wallménius
+ *
+ * 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 __MEM_FUNCTION_WRAPPERS_H__
+#define __MEM_FUNCTION_WRAPPERS_H__
+
+/* Use this macro in plugins where gcc tries to optimize by calling
+ * these functions directly */
+
+#define MEM_FUNCTION_WRAPPERS(api) \
+        void *memcpy(void *dest, const void *src, size_t n) \
+        { \
+            return (api)->memcpy(dest, src, n); \
+        } \
+        void *memset(void *dest, int c, size_t n) \
+        { \
+            return (api)->memset(dest, c, n); \
+        } \
+        void *memmove(void *dest, const void *src, size_t n) \
+        { \
+            return (api)->memmove(dest, src, n); \
+        } \
+        int memcmp(const void *s1, const void *s2, size_t n) \
+        { \
+            return (api)->memcmp(s1, s2, n); \
+        }
+
+#endif /* __MEM_FUNCTION_WRAPPERS_H__ */
+