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author | marha <marha@users.sourceforge.net> | 2013-04-08 08:17:23 +0200 |
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committer | marha <marha@users.sourceforge.net> | 2013-04-08 08:17:23 +0200 |
commit | 95fb19d661154ba8cfc6c793a0daa25657294b3b (patch) | |
tree | 4abbb540731ff40c75c4a4282670dba886e60cd7 /mesalib/src/gallium/auxiliary/util/u_debug_memory.c | |
parent | 176eab9e8277db1549bfc6c9ae805c4e1858f0b0 (diff) | |
download | vcxsrv-95fb19d661154ba8cfc6c793a0daa25657294b3b.tar.gz vcxsrv-95fb19d661154ba8cfc6c793a0daa25657294b3b.tar.bz2 vcxsrv-95fb19d661154ba8cfc6c793a0daa25657294b3b.zip |
fontconfig libXau mesa xserver xkeyboard-config git update 8 Apr 2013
xserver commit 8928f8fa0bb154ce437af703ff702016f0dcf127
xkeyboard-config commit e5c6729f3679fe87a703eb1d7ec1cf0a61814ca8
libXau commit f5a57d8a21a34d7084cce294e24c0422e02ef8ef
fontconfig commit 18bf57c70aafcad031c0b43756b754dcaf6a756a
mesa commit eff66bc9f855fff5c4f5f57f247254a97431e8ad
Diffstat (limited to 'mesalib/src/gallium/auxiliary/util/u_debug_memory.c')
-rw-r--r-- | mesalib/src/gallium/auxiliary/util/u_debug_memory.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/mesalib/src/gallium/auxiliary/util/u_debug_memory.c b/mesalib/src/gallium/auxiliary/util/u_debug_memory.c index 4bf26a524..472354781 100644 --- a/mesalib/src/gallium/auxiliary/util/u_debug_memory.c +++ b/mesalib/src/gallium/auxiliary/util/u_debug_memory.c @@ -76,6 +76,7 @@ struct debug_memory_header #endif unsigned magic; + unsigned tag; }; struct debug_memory_footer @@ -140,6 +141,7 @@ debug_malloc(const char *file, unsigned line, const char *function, hdr->function = function; hdr->size = size; hdr->magic = DEBUG_MEMORY_MAGIC; + hdr->tag = 0; #if DEBUG_FREED_MEMORY hdr->freed = FALSE; #endif @@ -263,6 +265,7 @@ debug_realloc(const char *file, unsigned line, const char *function, new_hdr->function = old_hdr->function; new_hdr->size = new_size; new_hdr->magic = DEBUG_MEMORY_MAGIC; + new_hdr->tag = 0; #if DEBUG_FREED_MEMORY new_hdr->freed = FALSE; #endif @@ -348,6 +351,58 @@ debug_memory_end(unsigned long start_no) /** + * Put a tag (arbitrary integer) on a memory block. + * Can be useful for debugging. + */ +void +debug_memory_tag(void *ptr, unsigned tag) +{ + struct debug_memory_header *hdr; + + if (!ptr) + return; + + hdr = header_from_data(ptr); + if (hdr->magic != DEBUG_MEMORY_MAGIC) { + debug_printf("%s corrupted memory at %p\n", __FUNCTION__, ptr); + debug_assert(0); + } + + hdr->tag = tag; +} + + +/** + * Check the given block of memory for validity/corruption. + */ +void +debug_memory_check_block(void *ptr) +{ + struct debug_memory_header *hdr; + struct debug_memory_footer *ftr; + + if (!ptr) + return; + + hdr = header_from_data(ptr); + 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 (ftr->magic != DEBUG_MEMORY_MAGIC) { + debug_printf("%s:%u:%s: buffer overflow %p\n", + hdr->file, hdr->line, hdr->function, ptr); + debug_assert(0); + } +} + + + +/** * We can periodically call this from elsewhere to do a basic sanity * check of the heap memory we've allocated. */ |