1//===------------------------- abort_message.cpp --------------------------===//
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 <stdlib.h>
10#include <stdio.h>
11#include <stdarg.h>
12#include "abort_message.h"
13
14#ifdef __BIONIC__
15#include <android/api-level.h>
16#if __ANDROID_API__ >= 21
17#include <syslog.h>
18extern "C" void android_set_abort_message(const char* msg);
19#else
20#include <assert.h>
21#endif // __ANDROID_API__ >= 21
22#endif // __BIONIC__
23
24#ifdef __APPLE__
25# if defined(__has_include) && __has_include(<CrashReporterClient.h>)
26# define HAVE_CRASHREPORTERCLIENT_H
27# include <CrashReporterClient.h>
28# endif
29#endif
30
31void abort_message(const char* format, ...)
32{
33 // write message to stderr
34#if !defined(NDEBUG) || !defined(LIBCXXABI_BAREMETAL)
35#ifdef __APPLE__
36 fprintf(stderr, "libc++abi.dylib: ");
37#endif
38 va_list list;
39 va_start(list, format);
40 vfprintf(stderr, format, list);
41 va_end(list);
42 fprintf(stderr, "\n");
43#endif
44
45#if defined(__APPLE__) && defined(HAVE_CRASHREPORTERCLIENT_H)
46 // record message in crash report
47 char* buffer;
48 va_list list2;
49 va_start(list2, format);
50 vasprintf(&buffer, format, list2);
51 va_end(list2);
52 CRSetCrashLogMessage(buffer);
53#elif defined(__BIONIC__)
54 char* buffer;
55 va_list list2;
56 va_start(list2, format);
57 vasprintf(&buffer, format, list2);
58 va_end(list2);
59
60#if __ANDROID_API__ >= 21
61 // Show error in tombstone.
62 android_set_abort_message(buffer);
63
64 // Show error in logcat.
65 openlog("libc++abi", 0, 0);
66 syslog(LOG_CRIT, "%s", buffer);
67 closelog();
68#else
69 // The good error reporting wasn't available in Android until L. Since we're
70 // about to abort anyway, just call __assert2, which will log _somewhere_
71 // (tombstone and/or logcat) in older releases.
72 __assert2(__FILE__, __LINE__, __func__, buffer);
73#endif // __ANDROID_API__ >= 21
74#endif // __BIONIC__
75
76 abort();
77}
78