//===----------------------------------------------------------------------===//

//

// 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 <stdlib.h>

#include <stdio.h>

#include <stdarg.h>

#include "abort_message.h"

#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>

#   define _LIBCXXABI_USE_CRASHREPORTER_CLIENT

#endif

void abort_message(const char* format, ...)

{

    // Write message to stderr. We do this before formatting into a

    // variable-size buffer so that we still get some information if

    // formatting into the variable-sized buffer fails.

#if !defined(NDEBUG) || !defined(LIBCXXABI_BAREMETAL)

    {

        fprintf(stderr, "libc++abi: ");

        va_list list;

        va_start(list, format);

        vfprintf(stderr, format, list);

        va_end(list);

        fprintf(stderr, "\n");

    }

#endif

    // Format the arguments into an allocated buffer. We leak the buffer on

    // purpose, since we're about to abort() anyway.

#if defined(_LIBCXXABI_USE_CRASHREPORTER_CLIENT)

    char* buffer;

    va_list list;

    va_start(list, format);

    vasprintf(&buffer, format, list);

    va_end(list);

    CRSetCrashLogMessage(buffer);

#elif defined(__BIONIC__)

    char* buffer;

    va_list list;

    va_start(list, format);

    vasprintf(&buffer, format, list);

    va_end(list);

#   if __ANDROID_API__ >= 21

    // Show error in tombstone.

    android_set_abort_message(buffer);

    // Show error in logcat.

    openlog("libc++abi", 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 // __BIONIC__

    abort();

}