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authorJosé Fonseca <jrfonseca@tungstengraphics.com>2008-09-18 23:00:18 +0900
committerJosé Fonseca <jrfonseca@tungstengraphics.com>2008-09-18 23:23:02 +0900
commiteb5c288df48fa818ecb2bbd71f263ec68ebbef8a (patch)
tree82abf53269bdb3222f3d8b7f0b852e3a9ffd1cb7 /src/gallium/auxiliary
parent451888ee8f9d9749a2d52351374a14525c07ef2b (diff)
util: A few more memory debugging checks.
Diffstat (limited to 'src/gallium/auxiliary')
-rw-r--r--src/gallium/auxiliary/util/p_debug_mem.c31
1 files changed, 29 insertions, 2 deletions
diff --git a/src/gallium/auxiliary/util/p_debug_mem.c b/src/gallium/auxiliary/util/p_debug_mem.c
index ed18c6540e..9511479cbb 100644
--- a/src/gallium/auxiliary/util/p_debug_mem.c
+++ b/src/gallium/auxiliary/util/p_debug_mem.c
@@ -122,8 +122,12 @@ debug_malloc(const char *file, unsigned line, const char *function,
struct debug_memory_footer *ftr;
hdr = real_malloc(sizeof(*hdr) + size + sizeof(*ftr));
- if(!hdr)
+ if(!hdr) {
+ debug_printf("%s:%u:%s: out of memory when trying to allocate %lu bytes\n",
+ file, line, function,
+ (long unsigned)size);
return NULL;
+ }
hdr->no = last_no++;
hdr->file = file;
@@ -219,8 +223,12 @@ debug_realloc(const char *file, unsigned line, const char *function,
/* alloc new */
new_hdr = real_malloc(sizeof(*new_hdr) + new_size + sizeof(*new_ftr));
- if(!new_hdr)
+ if(!new_hdr) {
+ debug_printf("%s:%u:%s: out of memory when trying to allocate %lu bytes\n",
+ file, line, function,
+ (long unsigned)new_size);
return NULL;
+ }
new_hdr->no = old_hdr->no;
new_hdr->file = old_hdr->file;
new_hdr->line = old_hdr->line;
@@ -261,8 +269,19 @@ debug_memory_end(unsigned long start_no)
for (; entry != &list; entry = entry->prev) {
struct debug_memory_header *hdr;
void *ptr;
+ struct debug_memory_footer *ftr;
+
hdr = LIST_ENTRY(struct debug_memory_header, entry, head);
ptr = data_from_header(hdr);
+ ftr = footer_from_header(hdr);
+
+ if(hdr->magic != DEBUG_MEMORY_MAGIC) {
+ debug_printf("%s:%u:%s: bad or corrupted memory %p\n",
+ hdr->file, hdr->line, hdr->function,
+ ptr);
+ debug_assert(0);
+ }
+
if((start_no <= hdr->no && hdr->no < last_no) ||
(last_no < start_no && (hdr->no < last_no || start_no <= hdr->no))) {
debug_printf("%s:%u:%s: %u bytes at %p not freed\n",
@@ -270,7 +289,15 @@ debug_memory_end(unsigned long start_no)
hdr->size, ptr);
total_size += hdr->size;
}
+
+ if(ftr->magic != DEBUG_MEMORY_MAGIC) {
+ debug_printf("%s:%u:%s: buffer overflow %p\n",
+ hdr->file, hdr->line, hdr->function,
+ ptr);
+ debug_assert(0);
+ }
}
+
if(total_size) {
debug_printf("Total of %u KB of system memory apparently leaked\n",
(total_size + 1023)/1024);