2008-03-23 18:38:10 +00:00
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/**************************************************************************
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*
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* Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sub license, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial portions
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* of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
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* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
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* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*
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**************************************************************************/
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/**
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* @file
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* Memory debugging.
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*
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* @author José Fonseca <jrfonseca@tungstengraphics.com>
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*/
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2008-04-25 10:19:51 +01:00
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#include "pipe/p_config.h"
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2008-04-30 16:59:12 +01:00
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#if defined(PIPE_SUBSYSTEM_WINDOWS_DISPLAY)
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2008-03-23 18:38:10 +00:00
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#include <windows.h>
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#include <winddi.h>
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2008-04-30 16:59:12 +01:00
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#elif defined(PIPE_SUBSYSTEM_WINDOWS_MINIPORT)
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#include <wdm.h>
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2008-03-23 18:38:10 +00:00
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#else
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#include <stdio.h>
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#include <stdlib.h>
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#endif
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#include "pipe/p_debug.h"
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#include "util/u_double_list.h"
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#define DEBUG_MEMORY_MAGIC 0x6e34090aU
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2008-04-25 10:19:51 +01:00
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#if defined(PIPE_SUBSYSTEM_WINDOWS_DISPLAY) && !defined(WINCE)
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2008-03-23 18:38:10 +00:00
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#define real_malloc(_size) EngAllocMem(0, _size, 'D3AG')
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#define real_free(_ptr) EngFreeMem(_ptr)
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2008-04-30 16:59:12 +01:00
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#elif defined(PIPE_SUBSYSTEM_WINDOWS_MINIPORT)
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#define real_malloc(_size) ExAllocatePool(0, _size)
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#define real_free(_ptr) ExFreePool(_ptr)
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2008-03-23 18:38:10 +00:00
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#else
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#define real_malloc(_size) malloc(_size)
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#define real_free(_ptr) free(_ptr)
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#endif
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struct debug_memory_header
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{
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struct list_head head;
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unsigned long no;
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const char *file;
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unsigned line;
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const char *function;
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size_t size;
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unsigned magic;
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};
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2008-06-09 11:56:52 +01:00
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struct debug_memory_footer
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{
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unsigned magic;
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};
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2008-03-23 18:38:10 +00:00
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static struct list_head list = { &list, &list };
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2008-04-08 03:30:36 +01:00
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static unsigned long last_no = 0;
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2008-03-23 18:38:10 +00:00
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2008-04-10 14:57:21 +01:00
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static INLINE struct debug_memory_header *
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header_from_data(void *data)
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{
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if(data)
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return (struct debug_memory_header *)((char *)data - sizeof(struct debug_memory_header));
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else
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return NULL;
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}
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static INLINE void *
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data_from_header(struct debug_memory_header *hdr)
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{
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if(hdr)
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return (void *)((char *)hdr + sizeof(struct debug_memory_header));
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else
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return NULL;
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}
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2008-06-09 11:56:52 +01:00
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static INLINE struct debug_memory_footer *
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footer_from_header(struct debug_memory_header *hdr)
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{
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if(hdr)
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return (struct debug_memory_footer *)((char *)hdr + sizeof(struct debug_memory_header) + hdr->size);
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else
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return NULL;
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}
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2008-04-10 14:57:21 +01:00
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2008-03-23 18:38:10 +00:00
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void *
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debug_malloc(const char *file, unsigned line, const char *function,
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size_t size)
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{
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struct debug_memory_header *hdr;
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2008-06-09 11:56:52 +01:00
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struct debug_memory_footer *ftr;
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2008-03-23 18:38:10 +00:00
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2008-06-09 11:56:52 +01:00
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hdr = real_malloc(sizeof(*hdr) + size + sizeof(*ftr));
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2008-09-18 15:00:18 +01:00
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if(!hdr) {
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debug_printf("%s:%u:%s: out of memory when trying to allocate %lu bytes\n",
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file, line, function,
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(long unsigned)size);
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2008-03-23 18:38:10 +00:00
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return NULL;
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2008-09-18 15:00:18 +01:00
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}
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2008-03-23 18:38:10 +00:00
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2008-04-08 03:30:36 +01:00
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hdr->no = last_no++;
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2008-03-23 18:38:10 +00:00
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hdr->file = file;
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hdr->line = line;
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hdr->function = function;
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hdr->size = size;
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hdr->magic = DEBUG_MEMORY_MAGIC;
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2008-06-09 11:56:52 +01:00
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ftr = footer_from_header(hdr);
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ftr->magic = DEBUG_MEMORY_MAGIC;
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2008-03-23 18:38:10 +00:00
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LIST_ADDTAIL(&hdr->head, &list);
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2008-04-10 14:57:21 +01:00
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return data_from_header(hdr);
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2008-03-23 18:38:10 +00:00
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}
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void
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debug_free(const char *file, unsigned line, const char *function,
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void *ptr)
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{
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struct debug_memory_header *hdr;
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2008-06-09 11:56:52 +01:00
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struct debug_memory_footer *ftr;
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2008-03-23 18:38:10 +00:00
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if(!ptr)
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return;
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2008-04-10 14:57:21 +01:00
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hdr = header_from_data(ptr);
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2008-03-23 18:38:10 +00:00
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if(hdr->magic != DEBUG_MEMORY_MAGIC) {
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debug_printf("%s:%u:%s: freeing bad or corrupted memory %p\n",
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file, line, function,
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ptr);
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debug_assert(0);
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return;
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}
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2008-06-09 11:56:52 +01:00
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ftr = footer_from_header(hdr);
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if(ftr->magic != DEBUG_MEMORY_MAGIC) {
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debug_printf("%s:%u:%s: buffer overflow %p\n",
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hdr->file, hdr->line, hdr->function,
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ptr);
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debug_assert(0);
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}
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2008-03-23 18:38:10 +00:00
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LIST_DEL(&hdr->head);
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hdr->magic = 0;
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2008-06-09 11:56:52 +01:00
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ftr->magic = 0;
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2008-03-23 18:38:10 +00:00
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real_free(hdr);
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}
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void *
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debug_calloc(const char *file, unsigned line, const char *function,
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size_t count, size_t size )
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{
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void *ptr = debug_malloc( file, line, function, count * size );
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if( ptr )
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memset( ptr, 0, count * size );
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return ptr;
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}
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void *
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debug_realloc(const char *file, unsigned line, const char *function,
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void *old_ptr, size_t old_size, size_t new_size )
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{
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2008-04-10 14:57:21 +01:00
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struct debug_memory_header *old_hdr, *new_hdr;
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2008-06-09 11:56:52 +01:00
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struct debug_memory_footer *old_ftr, *new_ftr;
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2008-04-10 14:57:21 +01:00
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void *new_ptr;
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if(!old_ptr)
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return debug_malloc( file, line, function, new_size );
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if(!new_size) {
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debug_free( file, line, function, old_ptr );
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return NULL;
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2008-03-23 18:38:10 +00:00
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}
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2008-04-10 14:57:21 +01:00
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old_hdr = header_from_data(old_ptr);
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if(old_hdr->magic != DEBUG_MEMORY_MAGIC) {
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debug_printf("%s:%u:%s: reallocating bad or corrupted memory %p\n",
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file, line, function,
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old_ptr);
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debug_assert(0);
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return NULL;
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}
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2008-06-09 11:56:52 +01:00
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old_ftr = footer_from_header(old_hdr);
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if(old_ftr->magic != DEBUG_MEMORY_MAGIC) {
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debug_printf("%s:%u:%s: buffer overflow %p\n",
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old_hdr->file, old_hdr->line, old_hdr->function,
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old_ptr);
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debug_assert(0);
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}
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2008-04-10 14:57:21 +01:00
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/* alloc new */
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2008-06-09 11:56:52 +01:00
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new_hdr = real_malloc(sizeof(*new_hdr) + new_size + sizeof(*new_ftr));
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2008-09-18 15:00:18 +01:00
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if(!new_hdr) {
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debug_printf("%s:%u:%s: out of memory when trying to allocate %lu bytes\n",
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file, line, function,
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(long unsigned)new_size);
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2008-04-10 14:57:21 +01:00
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return NULL;
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2008-09-18 15:00:18 +01:00
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}
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2008-04-10 14:57:21 +01:00
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new_hdr->no = old_hdr->no;
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new_hdr->file = old_hdr->file;
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new_hdr->line = old_hdr->line;
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new_hdr->function = old_hdr->function;
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new_hdr->size = new_size;
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new_hdr->magic = DEBUG_MEMORY_MAGIC;
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2008-06-09 11:56:52 +01:00
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new_ftr = footer_from_header(new_hdr);
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new_ftr->magic = DEBUG_MEMORY_MAGIC;
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LIST_REPLACE(&old_hdr->head, &new_hdr->head);
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2008-04-10 14:57:21 +01:00
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/* copy data */
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new_ptr = data_from_header(new_hdr);
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memcpy( new_ptr, old_ptr, old_size < new_size ? old_size : new_size );
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/* free old */
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old_hdr->magic = 0;
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2008-06-09 11:56:52 +01:00
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old_ftr->magic = 0;
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2008-04-10 14:57:21 +01:00
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real_free(old_hdr);
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2008-03-23 18:38:10 +00:00
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return new_ptr;
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}
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2008-04-08 03:30:36 +01:00
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unsigned long
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debug_memory_begin(void)
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2008-03-23 18:38:10 +00:00
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{
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2008-04-08 03:30:36 +01:00
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return last_no;
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2008-03-23 18:38:10 +00:00
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}
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void
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2008-04-08 03:30:36 +01:00
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debug_memory_end(unsigned long start_no)
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2008-03-23 18:38:10 +00:00
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{
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2008-05-07 08:29:36 +01:00
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size_t total_size = 0;
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2008-03-23 18:38:10 +00:00
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struct list_head *entry;
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2008-11-13 11:34:10 +00:00
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if(start_no == last_no)
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return;
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2008-03-23 18:38:10 +00:00
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entry = list.prev;
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for (; entry != &list; entry = entry->prev) {
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struct debug_memory_header *hdr;
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void *ptr;
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2008-09-18 15:00:18 +01:00
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struct debug_memory_footer *ftr;
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2008-03-23 18:38:10 +00:00
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hdr = LIST_ENTRY(struct debug_memory_header, entry, head);
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2008-04-10 14:57:21 +01:00
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ptr = data_from_header(hdr);
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2008-09-18 15:00:18 +01:00
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ftr = footer_from_header(hdr);
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if(hdr->magic != DEBUG_MEMORY_MAGIC) {
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debug_printf("%s:%u:%s: bad or corrupted memory %p\n",
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hdr->file, hdr->line, hdr->function,
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ptr);
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debug_assert(0);
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}
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2008-06-19 13:16:16 +01:00
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if((start_no <= hdr->no && hdr->no < last_no) ||
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(last_no < start_no && (hdr->no < last_no || start_no <= hdr->no))) {
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2008-03-23 18:52:37 +00:00
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debug_printf("%s:%u:%s: %u bytes at %p not freed\n",
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2008-03-23 18:38:10 +00:00
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hdr->file, hdr->line, hdr->function,
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hdr->size, ptr);
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2008-05-07 08:29:36 +01:00
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total_size += hdr->size;
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}
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2008-09-18 15:00:18 +01:00
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if(ftr->magic != DEBUG_MEMORY_MAGIC) {
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debug_printf("%s:%u:%s: buffer overflow %p\n",
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hdr->file, hdr->line, hdr->function,
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ptr);
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debug_assert(0);
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}
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2008-05-07 08:29:36 +01:00
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}
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2008-09-18 15:00:18 +01:00
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2008-05-07 08:29:36 +01:00
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if(total_size) {
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debug_printf("Total of %u KB of system memory apparently leaked\n",
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(total_size + 1023)/1024);
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2008-03-23 18:38:10 +00:00
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}
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2008-11-13 11:34:10 +00:00
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else {
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debug_printf("No memory leaks detected.\n");
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}
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2008-03-23 18:38:10 +00:00
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}
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