127 lines
2.4 KiB
C++
127 lines
2.4 KiB
C++
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/* cygwin.cc: general system debugging tool.
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Copyright 1996, 1998 Cygnus Solutions.
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This file is part of Cygwin.
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This software is a copyrighted work licensed under the terms of the
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Cygwin license. Please consult the file "CYGWIN_LICENSE" for
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details. */
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/* This program is intended to be a general tool for debugging cygwin.
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Possibilities include
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- dumping various internal data structures
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- poking various values into system tables
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- turning on strace'ing for arbitrary tasks
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*/
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#include <string.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <getopt.h>
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#include <windows.h>
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#include "winsup.h"
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static char *prog_name;
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static void
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usage (FILE *stream, int status)
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{
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fprintf (stream, "\
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Usage: %s \\\n\
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[-s|--strace pid mask]\\\n\
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[-H|--help] [-V|--version]\n\
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",
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prog_name);
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exit (status);
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}
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static struct option long_options[] =
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{
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{ "version", no_argument, NULL, 'V' },
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{ "help", no_argument, NULL, 'H' },
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{ "strace", required_argument, NULL, 's' },
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{ 0, no_argument, 0, 0 }
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};
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struct strace_args
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{
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int pid;
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int mask;
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char *fn;
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};
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/* Turn on strace'ing for the indicated pid. */
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static void
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set_strace (strace_args *args)
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{
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shared_info *s = cygwin_getshared ();
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pinfo *p = s->p[args->pid];
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if (!p)
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{
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fprintf (stderr, "%s: process %d not found\n", prog_name, args->pid);
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exit (1);
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}
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p->strace_mask = args->mask;
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}
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int
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main (int argc, char *argv[])
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{
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int c;
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int seen_flag_p = 0;
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int show_version_p = 0;
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int set_strace_p = 0;
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strace_args strace_args;
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prog_name = strrchr (argv[0], '/');
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if (prog_name == NULL)
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prog_name = strrchr (argv[0], '\\');
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if (prog_name == NULL)
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prog_name = argv[0];
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while ((c = getopt_long (argc, argv, "HVs:", long_options, (int *) 0))
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!= EOF)
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{
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seen_flag_p = 1;
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switch (c)
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{
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case 'H':
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usage (stdout, 0);
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break;
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case 'V':
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show_version_p = 1;
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break;
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case 's':
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if (optind + 1 > argc)
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usage (stderr, 1);
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strace_args.pid = atoi (optarg);
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if (optind < argc)
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strace_args.mask = atoi (argv[optind++]);
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if (optind < argc)
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strace_args.fn = argv[optind++];
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set_strace_p = 1;
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break;
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default:
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usage (stderr, 1);
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break;
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}
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}
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if (show_version_p)
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printf ("CYGWIN version ???\n");
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if (!seen_flag_p || optind != argc)
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usage (stderr, 1);
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if (set_strace_p)
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set_strace (&strace_args);
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return 0;
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}
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