1// Copyright (c) 2006-2009 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5// A file you can include instead of <execinfo.h> if your project might need
6// to run on Mac OS X 10.4.
7
8#ifndef BASE_COMPAT_EXECINFO_H_
9#define BASE_COMPAT_EXECINFO_H_
10#pragma once
11
12#include "build/build_config.h"
13
14#if defined(OS_MACOSX)
15#include <AvailabilityMacros.h>
16#endif
17
18#if defined(OS_MACOSX) && MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_5
19// Manually define these here as weak imports, rather than including execinfo.h.
20// This lets us launch on 10.4 which does not have these calls.
21extern "C" {
22
23extern int backtrace(void**, int) __attribute__((weak_import));
24extern char** backtrace_symbols(void* const*, int)
25    __attribute__((weak_import));
26extern void backtrace_symbols_fd(void* const*, int, int)
27    __attribute__((weak_import));
28
29}  // extern "C"
30#elif defined(ANDROID)
31extern "C" {
32extern int backtrace(void**, int);
33extern char** backtrace_symbols(void* const*, int);
34extern void backtrace_symbols_fd(void* const*, int, int);
35}  // extern "C"
36#else
37#include <execinfo.h>
38#endif
39
40#endif  // BASE_COMPAT_EXECINFO_H_
41