| //===----------------------------------------------------------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #include <__config> |
| #include <__verbose_abort> |
| #include <cstdarg> |
| #include <cstdio> |
| #include <cstdlib> |
| |
| #ifdef __BIONIC__ |
| # include <android/api-level.h> |
| # if __ANDROID_API__ >= 21 |
| # include <syslog.h> |
| extern "C" void android_set_abort_message(const char* msg); |
| # else |
| # include <assert.h> |
| # endif // __ANDROID_API__ >= 21 |
| #endif // __BIONIC__ |
| |
| #if defined(__APPLE__) && __has_include(<CrashReporterClient.h>) |
| # include <CrashReporterClient.h> |
| #endif |
| |
| _LIBCPP_BEGIN_NAMESPACE_STD |
| |
| _LIBCPP_WEAK void __libcpp_verbose_abort(char const* format, ...) { |
| // Write message to stderr. We do this before formatting into a |
| // buffer so that we still get some information out if that fails. |
| { |
| va_list list; |
| va_start(list, format); |
| std::vfprintf(stderr, format, list); |
| va_end(list); |
| } |
| |
| // Format the arguments into an allocated buffer for CrashReport & friends. |
| // We leak the buffer on purpose, since we're about to abort() anyway. |
| char* buffer; |
| (void)buffer; |
| va_list list; |
| va_start(list, format); |
| |
| #if defined(__APPLE__) && __has_include(<CrashReporterClient.h>) |
| // Note that we should technically synchronize accesses here (by e.g. taking a lock), |
| // however concretely we're only setting a pointer, so the likelihood of a race here |
| // is low. |
| vasprintf(&buffer, format, list); |
| CRSetCrashLogMessage(buffer); |
| #elif defined(__BIONIC__) |
| vasprintf(&buffer, format, list); |
| |
| # if __ANDROID_API__ >= 21 |
| // Show error in tombstone. |
| android_set_abort_message(buffer); |
| |
| // Show error in logcat. |
| openlog("libc++", 0, 0); |
| syslog(LOG_CRIT, "%s", buffer); |
| closelog(); |
| # else |
| // The good error reporting wasn't available in Android until L. Since we're |
| // about to abort anyway, just call __assert2, which will log _somewhere_ |
| // (tombstone and/or logcat) in older releases. |
| __assert2(__FILE__, __LINE__, __func__, buffer); |
| # endif // __ANDROID_API__ >= 21 |
| #endif |
| va_end(list); |
| |
| std::abort(); |
| } |
| |
| _LIBCPP_END_NAMESPACE_STD |