text: /*
   * Copyright (c) 2015 ARM Limited
   * All rights reserved
   *
   * The license below extends only to copyright in the software and shall
   * not be construed as granting a license to any other intellectual
   * property including but not limited to intellectual property relating
   * to a hardware implementation of the functionality of the software
   * licensed hereunder.  You may use the software subject to the license
   * terms below provided that you ensure that this notice is replicated
   * unmodified and in its entirety in all distributions of the software,
   * modified or unmodified, in source code or in binary form.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions are
   * met: redistributions of source code must retain the above copyright
   * notice, this list of conditions and the following disclaimer;
   * redistributions in binary form must reproduce the above copyright
   * notice, this list of conditions and the following disclaimer in the
   * documentation and/or other materials provided with the distribution;
   * neither the name of the copyright holders nor the names of its
   * contributors may be used to endorse or promote products derived from
   * this software without specific prior written permission.
   *
   * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
   * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
   * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
   * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
   * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
   * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
   * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
   * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
   * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
   * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
   * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
   *
   * Authors: Andreas Sandberg
   */
  
  #include <execinfo.h>
  #include <unistd.h>
  
  #include "base/atomicio.hh"
  #include "sim/backtrace.hh"
  
  #define SAFE_MSG(m)                                             \
      do {                                                        \
          static const char msg[] = m;                            \
          atomic_write(STDERR_FILENO, msg, sizeof(msg) - 1);      \
      } while (0)
  
  void
  print_backtrace()
  {
      void *buffer[32];
      int size;
  
      size = backtrace(buffer, sizeof(buffer) / sizeof(*buffer));
  
      STATIC_MSG(STDOUT_FILENO,"--- BEGIN LIBC BACKTRACE ---\n");
      // backtrace_symbols_fd(buffer, size, STDERR_FILENO);
      backtrace_symbols_fd(buffer, size, STDOUT_FILENO);
      if (size == sizeof(buffer))
          STATIC_MSG(STDOUT_FILENO,"Warning: Backtrace may have been truncated.\n");
      STATIC_MSG(STDOUT_FILENO,"--- END LIBC BACKTRACE ---\n");
  }
  