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authorJosé Fonseca <jrfonseca@tungstengraphics.com>2008-03-23 18:38:10 +0000
committerJosé Fonseca <jrfonseca@tungstengraphics.com>2008-03-23 18:38:31 +0000
commit732422f6708199d6655185b1a5daec86efe2f1b7 (patch)
treed19bd16140925c007c1edea0972fff92b2405976 /src/gallium/auxiliary/util
parent312cbc5a5c7416745976c2281a9bbce6e3332965 (diff)
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
Diffstat (limited to 'src/gallium/auxiliary/util')
-rw-r--r--src/gallium/auxiliary/util/SConscript1
-rw-r--r--src/gallium/auxiliary/util/p_debug_mem.c172
2 files changed, 173 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/util/SConscript b/src/gallium/auxiliary/util/SConscript
index b44f2d5e39..9b3929eb2d 100644
--- a/src/gallium/auxiliary/util/SConscript
+++ b/src/gallium/auxiliary/util/SConscript
@@ -4,6 +4,7 @@ util = env.ConvenienceLibrary(
target = 'util',
source = [
'p_debug.c',
+ 'p_debug_mem.c',
'p_tile.c',
'p_util.c',
'u_blit.c',
diff --git a/src/gallium/auxiliary/util/p_debug_mem.c b/src/gallium/auxiliary/util/p_debug_mem.c
new file mode 100644
index 0000000000..56599dafa6
--- /dev/null
+++ b/src/gallium/auxiliary/util/p_debug_mem.c
@@ -0,0 +1,172 @@
+/**************************************************************************
+ *
+ * Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+/**
+ * @file
+ * Memory debugging.
+ *
+ * @author José Fonseca <jrfonseca@tungstengraphics.com>
+ */
+
+#ifdef WIN32
+#include <windows.h>
+#include <winddi.h>
+#else
+#include <stdio.h>
+#include <stdlib.h>
+#endif
+
+#include "pipe/p_debug.h"
+#include "util/u_double_list.h"
+
+
+#define DEBUG_MEMORY_MAGIC 0x6e34090aU
+
+
+#if defined(WIN32) && !defined(WINCE)
+#define real_malloc(_size) EngAllocMem(0, _size, 'D3AG')
+#define real_free(_ptr) EngFreeMem(_ptr)
+#else
+#define real_malloc(_size) malloc(_size)
+#define real_free(_ptr) free(_ptr)
+#endif
+
+
+struct debug_memory_header
+{
+ struct list_head head;
+
+ unsigned long no;
+ const char *file;
+ unsigned line;
+ const char *function;
+ size_t size;
+ unsigned magic;
+};
+
+static struct list_head list = { &list, &list };
+
+static unsigned long start_no = 0;
+static unsigned long end_no = 0;
+
+
+void *
+debug_malloc(const char *file, unsigned line, const char *function,
+ size_t size)
+{
+ struct debug_memory_header *hdr;
+
+ hdr = real_malloc(sizeof(*hdr) + size);
+ if(!hdr)
+ return NULL;
+
+ hdr->no = end_no++;
+ hdr->file = file;
+ hdr->line = line;
+ hdr->function = function;
+ hdr->size = size;
+ hdr->magic = DEBUG_MEMORY_MAGIC;
+
+ LIST_ADDTAIL(&hdr->head, &list);
+
+ return (void *)((char *)hdr + sizeof(*hdr));
+}
+
+void
+debug_free(const char *file, unsigned line, const char *function,
+ void *ptr)
+{
+ struct debug_memory_header *hdr;
+
+ if(!ptr)
+ return;
+
+ hdr = (struct debug_memory_header *)((char *)ptr - sizeof(*hdr));
+ if(hdr->magic != DEBUG_MEMORY_MAGIC) {
+ debug_printf("%s:%u:%s: freeing bad or corrupted memory %p\n",
+ file, line, function,
+ ptr);
+ debug_assert(0);
+ return;
+ }
+
+ LIST_DEL(&hdr->head);
+ hdr->magic = 0;
+
+ real_free(hdr);
+}
+
+void *
+debug_calloc(const char *file, unsigned line, const char *function,
+ size_t count, size_t size )
+{
+ void *ptr = debug_malloc( file, line, function, count * size );
+ if( ptr )
+ memset( ptr, 0, count * size );
+ return ptr;
+}
+
+void *
+debug_realloc(const char *file, unsigned line, const char *function,
+ void *old_ptr, size_t old_size, size_t new_size )
+{
+ void *new_ptr = NULL;
+
+ if (new_size != 0) {
+ new_ptr = debug_malloc( file, line, function, new_size );
+
+ if( new_ptr && old_ptr )
+ memcpy( new_ptr, old_ptr, old_size );
+ }
+
+ debug_free( file, line, function, old_ptr );
+ return new_ptr;
+}
+
+void
+debug_memory_reset(void)
+{
+ start_no = end_no;
+}
+
+void
+debug_memory_report(void)
+{
+ struct list_head *entry;
+
+ entry = list.prev;
+ for (; entry != &list; entry = entry->prev) {
+ struct debug_memory_header *hdr;
+ void *ptr;
+ hdr = LIST_ENTRY(struct debug_memory_header, entry, head);
+ ptr = (void *)((char *)hdr + sizeof(*hdr));
+ if(hdr->no >= start_no)
+ debug_printf("%s:%u:%s: %u byte st %p not freed\n",
+ hdr->file, hdr->line, hdr->function,
+ hdr->size, ptr);
+ }
+}