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 #pragma GCC visibility push(hidden)
16 
17 #if __APPLE__
18 #   if defined(__has_include) && __has_include(<CrashReporterClient.h>)
19 #       define HAVE_CRASHREPORTERCLIENT_H 1
20 #       include <CrashReporterClient.h>
21 
22         //  If any clients of llvm try to link to libCrashReporterClient.a themselves,
23         //  only one crash info struct will be used.
24         extern "C" {
25         CRASH_REPORTER_CLIENT_HIDDEN
26         struct crashreporter_annotations_t gCRAnnotations
27                 __attribute__((section("__DATA," CRASHREPORTER_ANNOTATIONS_SECTION)))
28                 = { CRASHREPORTER_ANNOTATIONS_VERSION, 0, 0, 0, 0, 0, 0 };
29         }
30 
31 #   endif
32 #endif
33 
34 __attribute__((visibility("hidden"), noreturn))
35 void abort_message(const char* format, ...)
36 {
37     // write message to stderr
38 #if __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 __APPLE__ && 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 #endif
56 
57     abort();
58 }
59 
60 #pragma GCC visibility pop
61