gallium: Memory debugging utilities.

There are no known tools for windows kernel memory debugging, so this is a
simple set of malloc etc wrappers.

Enabled by default on win32 debug builds

2 files changed, 42 insertions, 2 deletions

diff --git a/src/gallium/include/pipe/p_debug.h b/src/gallium/include/pipe/p_debug.h
index 14f8056924..c549513b6f 100644
--- a/src/gallium/include/pipe/p_debug.h
+++ b/src/gallium/include/pipe/p_debug.h
@@ -225,6 +225,29 @@ debug_dump_flags(const struct debug_named_value *names,
                  unsigned long value);
 
 
+void *
+debug_malloc(const char *file, unsigned line, const char *function,
+             size_t size);
+
+void
+debug_free(const char *file, unsigned line, const char *function,
+           void *ptr);
+
+void *
+debug_calloc(const char *file, unsigned line, const char *function,
+             size_t count, size_t size );
+
+void *
+debug_realloc(const char *file, unsigned line, const char *function,
+              void *old_ptr, size_t old_size, size_t new_size );
+
+void 
+debug_memory_reset(void);
+
+void 
+debug_memory_report(void);
+
+
 #ifdef	__cplusplus
 }
 #endif
diff --git a/src/gallium/include/pipe/p_util.h b/src/gallium/include/pipe/p_util.h
index c2e0f8c6a5..d3b2fa2950 100644
--- a/src/gallium/include/pipe/p_util.h
+++ b/src/gallium/include/pipe/p_util.h
@@ -39,6 +39,22 @@ extern "C" {
 #endif
 
 
+#if defined(WIN32) && defined(DEBUG) /* memory debugging */
+
+#include "p_debug.h"
+
+#define MALLOC( _size ) \
+   debug_malloc( __FILE__, __LINE__, __FUNCTION__, _size )
+#define CALLOC( _count, _size ) \
+   debug_calloc(__FILE__, __LINE__, __FUNCTION__, _count, _size )
+#define FREE( _ptr ) \
+   debug_free( __FILE__, __LINE__, __FUNCTION__,  _ptr )
+#define REALLOC( _ptr, _old_size, _size ) \
+   debug_realloc( __FILE__, __LINE__, __FUNCTION__,  _ptr, _old_size, _size )
+#define GETENV( X ) NULL
+
+#else
+   
 #ifdef WIN32
 
 void * __stdcall
@@ -104,7 +120,7 @@ REALLOC( void *old_ptr, unsigned old_size, unsigned new_size )
 
 #define GETENV( X )  NULL
 
-#else /* WIN32 */
+#else /* !WIN32 */
 
 #define MALLOC( SIZE )  malloc( SIZE )
 
@@ -116,7 +132,8 @@ REALLOC( void *old_ptr, unsigned old_size, unsigned new_size )
 
 #define GETENV( X )  getenv( X )
 
-#endif /* WIN32 */
+#endif /* !WIN32 */
+#endif /* !DEBUG */
 
 #define MALLOC_STRUCT(T)   (struct T *) MALLOC(sizeof(struct T))