harness.cpp revision 1.1.1.3 
1//===-- harness.cpp ---------------------------------------------*- 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#include "gwp_asan/tests/harness.h"
10
11namespace gwp_asan {
12namespace test {
13bool OnlyOnce() {
14  static int x = 0;
15  return !x++;
16}
17} // namespace test
18} // namespace gwp_asan
19
20// Optnone to ensure that the calls to these functions are not optimized away,
21// as we're looking for them in the backtraces.
22__attribute__((optnone)) char *
23AllocateMemory(gwp_asan::GuardedPoolAllocator &GPA) {
24  return static_cast<char *>(GPA.allocate(1));
25}
26__attribute__((optnone)) void
27DeallocateMemory(gwp_asan::GuardedPoolAllocator &GPA, void *Ptr) {
28  GPA.deallocate(Ptr);
29}
30__attribute__((optnone)) void
31DeallocateMemory2(gwp_asan::GuardedPoolAllocator &GPA, void *Ptr) {
32  GPA.deallocate(Ptr);
33}
34__attribute__((optnone)) void TouchMemory(void *Ptr) {
35  *(reinterpret_cast<volatile char *>(Ptr)) = 7;
36}
37