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util: Add a canary to identify gc_ctx in debug mode

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Acked-by: Marek Olšák <marek.olsak@amd.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25482>
This commit is contained in:
Caio Oliveira 2023-09-29 15:34:02 -07:00 • committed by Marge Bot
parent 5fa2b33d56
commit 5b767c890f
1 changed files with 8 additions and 0 deletions
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8
src/util/ralloc.c
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@ -550,6 +550,7 @@ ralloc_vasprintf_rewrite_tail(char **str, size_t *start, const char *fmt,
/* The size of a slab. */
#define SLAB_SIZE (32 * 1024)
#define GC_CONTEXT_CANARY 0xAF6B6C83
#define GC_CANARY 0xAF6B5B72
enum gc_flags {
@ -605,6 +606,10 @@ typedef struct gc_slab {
} gc_slab;
struct gc_ctx {
#ifndef NDEBUG
unsigned canary;
#endif
/* Array of slabs for fixed-size allocations. Each slab tracks allocations
* of specific sized blocks. User allocations are rounded up to the nearest
* fixed size. slabs[N] contains allocations of size
@ -671,6 +676,9 @@ gc_context(const void *parent)
list_inithead(&ctx->slabs[i].slabs);
list_inithead(&ctx->slabs[i].free_slabs);
}
#ifndef NDEBUG
ctx->canary = GC_CONTEXT_CANARY;
#endif
return ctx;
}