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Core: introduced the NGX_DEBUG_PALLOC macro.

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It allows to turn off accumulation of small pool allocations into a big
preallocated chunk of memory.  This is useful for debugging memory access
with sanitizer, since such accumulation can cover buffer overruns from
being detected.
This commit is contained in:
Valentin Bartenev 2016-03-23 17:44:04 +03:00
parent 9d08bda415
commit 0f4315f998
1 changed files with 4 additions and 0 deletions
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4
src/core/ngx_palloc.c
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@ -122,9 +122,11 @@ ngx_reset_pool(ngx_pool_t *pool)
void * void *
ngx_palloc(ngx_pool_t *pool, size_t size) ngx_palloc(ngx_pool_t *pool, size_t size)
{ {
#if !(NGX_DEBUG_PALLOC)
if (size <= pool->max) { if (size <= pool->max) {
return ngx_palloc_small(pool, size, 1); return ngx_palloc_small(pool, size, 1);
} }
#endif
return ngx_palloc_large(pool, size); return ngx_palloc_large(pool, size);
} }
@ -133,9 +135,11 @@ ngx_palloc(ngx_pool_t *pool, size_t size)
void * void *
ngx_pnalloc(ngx_pool_t *pool, size_t size) ngx_pnalloc(ngx_pool_t *pool, size_t size)
{ {
#if !(NGX_DEBUG_PALLOC)
if (size <= pool->max) { if (size <= pool->max) {
return ngx_palloc_small(pool, size, 0); return ngx_palloc_small(pool, size, 0);
} }
#endif
return ngx_palloc_large(pool, size); return ngx_palloc_large(pool, size);
} }