1 //===-- utilities.h ---------------------------------------------*- C++ -*-===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 #ifndef GWP_ASAN_UTILITIES_H_
10 #define GWP_ASAN_UTILITIES_H_
11
12 #include "gwp_asan/definitions.h"
13
14 #include <stddef.h>
15
16 namespace gwp_asan {
17 // Terminates in a platform-specific way with `Message`.
18 void die(const char *Message);
19
20 // Checks that `Condition` is true, otherwise dies with `Message`.
Check(bool Condition,const char * Message)21 GWP_ASAN_ALWAYS_INLINE void Check(bool Condition, const char *Message) {
22 if (Condition)
23 return;
24 die(Message);
25 }
26
27 enum class AlignmentStrategy {
28 // Default => POWER_OF_TWO on most platforms, BIONIC for Android Bionic.
29 DEFAULT,
30 POWER_OF_TWO,
31 BIONIC,
32 PERFECT,
33 };
34
35 // Returns the real size of a right-aligned allocation.
36 size_t rightAlignedAllocationSize(
37 size_t RealAllocationSize,
38 AlignmentStrategy Align = AlignmentStrategy::DEFAULT);
39 } // namespace gwp_asan
40
41 #endif // GWP_ASAN_UTILITIES_H_
42