gcc do_overlap

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最新推荐文章于 2024-08-16 14:38:02 发布

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本文介绍了一个名为do_overlap的配置文件解析驱动程序，该程序能够处理多种命令行选项，并根据这些选项来调整其行为。文章详细解释了如何通过命令行参数来启用详细输出、设置功能级别、使用全名进行匹配、指定对象级别、仅显示热点信息及设定热点阈值等操作。

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do_overlap:
/* Driver for profile overlap sub-command.  */

static int
do_overlap (int argc, char **argv)
{
  int opt;
  int ret;
  optind = 0;
  while ((opt = getopt_long (argc, argv, "vfFoht:", overlap_options, NULL)) != -1)
    {
      switch (opt)
        {
        case 'v':
          verbose = true;
          gcov_set_verbose ();
          break;
        case 'f':
          overlap_func_level = 1;
          break;
        case 'F':
          overlap_use_fullname = 1;
          break;
        case 'o':
          overlap_obj_level = 1;
          break;
        case 'h':
          overlap_hot_only = 1;
          break;
        case 't':
          overlap_hot_threshold = atof (optarg);
          break;
        default:
          overlap_usage ();
        }
    }
  if (argc - optind == 2)
    ret = profile_overlap (argv[optind], argv[optind+1]);
  else
    overlap_usage ();
  return ret;
}