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lower WEBP_MAX_ALLOCABLE_MEMORY default

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restrict to 2^34 for 64-bit targets, < 2^32 for 32-bit

Change-Id: Iff4ce40ae2c3c7fc119f018c2128dbe8f744341f
This commit is contained in:
James Zern 2016-09-22 23:13:33 -07:00
parent eee0cce158
commit b8384b53d6
1 changed files with 9 additions and 1 deletions
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10
src/utils/utils.h
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@ -20,6 +20,7 @@
#endif
#include <assert.h>
#include <limits.h>
#include "../dsp/dsp.h"
#include "../webp/types.h"
@ -32,7 +33,14 @@ extern "C" {
// Memory allocation
// This is the maximum memory amount that libwebp will ever try to allocate.
#define WEBP_MAX_ALLOCABLE_MEMORY (1ULL << 40)
#ifndef WEBP_MAX_ALLOCABLE_MEMORY
#if SIZE_MAX > (1ULL << 34)
#define WEBP_MAX_ALLOCABLE_MEMORY (1ULL << 34)
#else
// For 32-bit targets keep this below INT_MAX to avoid valgrind warnings.
#define WEBP_MAX_ALLOCABLE_MEMORY ((1ULL << 31) - (1 << 16))
#endif
#endif // WEBP_MAX_ALLOCABLE_MEMORY
// size-checking safe malloc/calloc: verify that the requested size is not too
// large, or return NULL. You don't need to call these for constructs like