blob: 7929b27bc43c5065d398676c5250e481b26b1b9b [file] [log] [blame]
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
#include "platform/assert.h"
#include "platform/globals.h"
#include "vm/os.h"
#include "vm/profiler.h"
namespace dart {
bool DynamicAssertionHelper::failed_ = false;
void DynamicAssertionHelper::Fail(const char* format, ...) {
// Take only the last 1KB of the file name if it is longer.
const intptr_t file_len = strlen(file_);
const intptr_t file_offset = (file_len > (1 * KB)) ? file_len - (1 * KB) : 0;
const char* file = file_ + file_offset;
// Print the file and line number into the buffer.
char buffer[4 * KB];
MSAN_UNPOISON(buffer, sizeof(buffer));
intptr_t file_and_line_length =
snprintf(buffer, sizeof(buffer), "%s: %d: error: ", file, line_);
// Print the error message into the buffer.
va_list arguments;
va_start(arguments, format);
vsnprintf(buffer + file_and_line_length,
sizeof(buffer) - file_and_line_length, format, arguments);
// Print the buffer on stderr and/or syslog.
OS::PrintErr("%s\n", buffer);
// In case of failed assertions, abort right away. Otherwise, wait
// until the program is exiting before producing a non-zero exit
// code through abort.
if (kind_ == ASSERT) {
failed_ = true;
} // namespace dart