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/set_abort_message.h>
17 #include <syslog.h>
18 #endif
19 
20 #pragma GCC visibility push(hidden)
21 
22 #if __APPLE__
23 #   if defined(__has_include) && __has_include(<CrashReporterClient.h>)
24 #       define HAVE_CRASHREPORTERCLIENT_H 1
25 #       include <CrashReporterClient.h>
26 #   endif
27 #endif
28 
29 __attribute__((visibility("hidden"), noreturn))
30 void abort_message(const char* format, ...)
31 {
32     // write message to stderr
33 #if __APPLE__
34     fprintf(stderr, "libc++abi.dylib: ");
35 #endif
36     va_list list;
37     va_start(list, format);
38     vfprintf(stderr, format, list);
39     va_end(list);
40     fprintf(stderr, "\n");
41 
42 #if __APPLE__ && HAVE_CRASHREPORTERCLIENT_H
43     // record message in crash report
44     char* buffer;
45     va_list list2;
46     va_start(list2, format);
47     vasprintf(&buffer, format, list2);
48     va_end(list2);
49     CRSetCrashLogMessage(buffer);
50 #elif __BIONIC__
51     char* buffer;
52     va_list list2;
53     va_start(list2, format);
54     vasprintf(&buffer, format, list2);
55     va_end(list2);
56 
57     // Show error in tombstone.
58     android_set_abort_message(buffer);
59 
60     // Show error in logcat.
61     openlog("libc++abi", 0, 0);
62     syslog(LOG_CRIT, "%s", buffer);
63     closelog();
64 #endif
65 
66     abort();
67 }
68 
69 #pragma GCC visibility pop
70