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/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software Foundation,
* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/
#ifndef __BLI_ADDRESS_SANITIZER_H__
#define __BLI_ADDRESS_SANITIZER_H__
/* Clang defines this. */
#ifndef __has_feature
# define __has_feature(x) 0
#endif
#if defined(__SANITIZE_ADDRESS__) || __has_feature(address_sanitizer)
# include "sanitizer/asan_interface.h"
#else
/* Ensure return value is used. Just using UNUSED_VARS results in a warning. */
# define ASAN_POISON_MEMORY_REGION(addr, size) (void)(0 && ((size) != 0 && (addr) != NULL))
# define ASAN_UNPOISON_MEMORY_REGION(addr, size) (void)(0 && ((size) != 0 && (addr) != NULL))
#endif
/**
* Mark a region of memory as "freed". When using address sanitizer, accessing the given memory
* region will cause an use-after-poison error. This can be used to find errors when dealing with
* uninitialized memory in custom containers.
*/
#define BLI_asan_poison(addr, size) ASAN_POISON_MEMORY_REGION(addr, size)
/**
* Mark a region of memory as usable again.
*/
#define BLI_asan_unpoison(addr, size) ASAN_UNPOISON_MEMORY_REGION(addr, size)
#endif /* __BLI_ADDRESS_SANITIZER_H__ */
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