1 /* Linux-specific PROCFS manipulation routines.
2    Copyright (C) 2011-2013 Free Software Foundation, Inc.
3 
4    This file is part of GDB.
5 
6    This program is free software; you can redistribute it and/or modify
7    it under the terms of the GNU General Public License as published by
8    the Free Software Foundation; either version 3 of the License, or
9    (at your option) any later version.
10 
11    This program is distributed in the hope that it will be useful,
12    but WITHOUT ANY WARRANTY; without even the implied warranty of
13    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14    GNU General Public License for more details.
15 
16    You should have received a copy of the GNU General Public License
17    along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
18 
19 #ifndef COMMON_LINUX_PROCFS_H
20 #define COMMON_LINUX_PROCFS_H
21 
22 #include <unistd.h>
23 
24 /* Return the TGID of LWPID from /proc/pid/status.  Returns -1 if not
25    found.  */
26 
27 extern int linux_proc_get_tgid (pid_t lwpid);
28 
29 /* Return the TracerPid of LWPID from /proc/pid/status.  Returns -1 if not
30    found.  */
31 
32 extern pid_t linux_proc_get_tracerpid (pid_t lwpid);
33 
34 /* Detect `T (stopped)' in `/proc/PID/status'.
35    Other states including `T (tracing stop)' are reported as false.  */
36 
37 extern int linux_proc_pid_is_stopped (pid_t pid);
38 
39 /* Return non-zero if PID is a zombie.  */
40 
41 extern int linux_proc_pid_is_zombie (pid_t pid);
42 
43 #endif /* COMMON_LINUX_PROCFS_H */
44