text: /*!The Treasure Box Library
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   * 
   * Copyright (C) 2009 - 2019, TBOOX Open Source Group.
   *
   * @author      ruki
   * @file        backtrace.c
   * @ingroup     platform
   *
   */
  
  /* //////////////////////////////////////////////////////////////////////////////////////
   * trace
   */
  #define TB_TRACE_MODULE_NAME                "backtrace"
  #define TB_TRACE_MODULE_DEBUG               (1)
  
  /* //////////////////////////////////////////////////////////////////////////////////////
   * includes
   */
  #include "backtrace.h"
  #if defined(TB_CONFIG_OS_WINDOWS)
  #   include "windows/backtrace.c"
  #elif defined(TB_CONFIG_OS_ANDROID)
  #   include "android/backtrace.c"
  #else
  #   include "libc/backtrace.c"
  #endif
  
  /* //////////////////////////////////////////////////////////////////////////////////////
   * implementation
   */
  tb_void_t tb_backtrace_dump(tb_char_t const* prefix, tb_pointer_t* frames, tb_size_t nframe)
  {
      // check
      tb_check_return(nframe < 256);
  
      // the frames
      tb_pointer_t frames_data[256] = {0};
      if (!frames)
      {
          nframe = tb_backtrace_frames(frames_data, nframe, 2);
          frames = frames_data;
      }
  
      // dump frames
      if (frames && nframe)
      {
          // init symbols
          tb_handle_t symbols = tb_backtrace_symbols_init(frames, nframe);
          if (symbols)
          {
              // walk
              tb_size_t i = 0;
              for (i = 0; i < nframe; i++)
              {
  #if TB_CPU_BIT64
                  tb_trace_i("%s[%016p]: %s", prefix? prefix : "", frames[i], tb_backtrace_symbols_name(symbols, frames, nframe, i));
  #else
                  tb_trace_i("%s[%08p]: %s", prefix? prefix : "", frames[i], tb_backtrace_symbols_name(symbols, frames, nframe, i));
  #endif
              }
          
              // exit symbols
              tb_backtrace_symbols_exit(symbols);
          }
          else
          {
              // walk
              tb_size_t i = 0;
              for (i = 0; i < nframe; i++)
              {
  #if TB_CPU_BIT64
                  tb_trace_i("%s[%016p]", prefix? prefix : "", frames[i]);
  #else
                  tb_trace_i("%s[%08p]", prefix? prefix : "", frames[i]);
  #endif              
              }
          }
      }
  }
  