1//===------------------------- abort_message.cpp --------------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is dual licensed under the MIT and the University of Illinois Open
6// Source Licenses. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#include <stdlib.h>
11#include <stdio.h>
12#include <stdarg.h>
13#include "abort_message.h"
14
15#ifdef __BIONIC__
16#include <android/api-level.h>
17#if __ANDROID_API__ >= 21
18#include <syslog.h>
19extern "C" void android_set_abort_message(const char* msg);
20#else
21#include <assert.h>
22#endif // __ANDROID_API__ >= 21
23#endif // __BIONIC__
24
25#pragma GCC visibility push(hidden)
26
27#ifdef __APPLE__
28#   if defined(__has_include) && __has_include(<CrashReporterClient.h>)
29#       define HAVE_CRASHREPORTERCLIENT_H
30#       include <CrashReporterClient.h>
31#   endif
32#endif
33
34__attribute__((visibility("hidden"), noreturn))
35void abort_message(const char* format, ...)
36{
37    // write message to stderr
38#ifdef __APPLE__
39    fprintf(stderr, "libc++abi.dylib: ");
40#endif
41    va_list list;
42    va_start(list, format);
43    vfprintf(stderr, format, list);
44    va_end(list);
45    fprintf(stderr, "\n");
46
47#if defined(__APPLE__) && defined(HAVE_CRASHREPORTERCLIENT_H)
48    // record message in crash report
49    char* buffer;
50    va_list list2;
51    va_start(list2, format);
52    vasprintf(&buffer, format, list2);
53    va_end(list2);
54    CRSetCrashLogMessage(buffer);
55#elif defined(__BIONIC__)
56    char* buffer;
57    va_list list2;
58    va_start(list2, format);
59    vasprintf(&buffer, format, list2);
60    va_end(list2);
61
62#if __ANDROID_API__ >= 21
63    // Show error in tombstone.
64    android_set_abort_message(buffer);
65
66    // Show error in logcat.
67    openlog("libc++abi", 0, 0);
68    syslog(LOG_CRIT, "%s", buffer);
69    closelog();
70#else
71    // The good error reporting wasn't available in Android until L. Since we're
72    // about to abort anyway, just call __assert2, which will log _somewhere_
73    // (tombstone and/or logcat) in older releases.
74    __assert2(__FILE__, __LINE__, __func__, buffer);
75#endif // __ANDROID_API__ >= 21
76#endif // __BIONIC__
77
78    abort();
79}
80
81#pragma GCC visibility pop
82