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blender-archive/source/blender/blenlib/BLI_asan.h
Campbell Barton c434782e3a File headers: SPDX License migration
Use a shorter/simpler license convention, stops the header taking so
much space.

Follow the SPDX license specification: https://spdx.org/licenses

- C/C++/objc/objc++
- Python
- Shell Scripts
- CMake, GNUmakefile

While most of the source tree has been included

- `./extern/` was left out.
- `./intern/cycles` & `./intern/atomic` are also excluded because they
  use different header conventions.

doc/license/SPDX-license-identifiers.txt has been added to list SPDX all
used identifiers.

See P2788 for the script that automated these edits.

Reviewed By: brecht, mont29, sergey

Ref D14069
2022-02-11 09:14:36 +11:00

29 lines
1017 B
C++

/* SPDX-License-Identifier: GPL-2.0-or-later */
#pragma once
/* Clang defines this. */
#ifndef __has_feature
# define __has_feature(x) 0
#endif
#if (defined(__SANITIZE_ADDRESS__) || __has_feature(address_sanitizer)) && !defined(_MSC_VER)
# 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)