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linux-procfs.h
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1 /* Linux-specific PROCFS manipulation routines.
2  Copyright (C) 2011-2015 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. Failure to open the /proc file results in a warning. */
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
30  not found. Does not warn on failure to open the /proc file. */
31 
32 extern pid_t linux_proc_get_tracerpid_nowarn (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 
40 
41 /* Return non-zero if PID is a zombie. Failure to open the
42  /proc/pid/status file results in a warning. */
43 
44 extern int linux_proc_pid_is_zombie (pid_t pid);
45 
46 /* Return non-zero if PID is a zombie. Does not warn on failure to
47  open the /proc file. */
48 
49 extern int linux_proc_pid_is_zombie_nowarn (pid_t pid);
50 
51 /* Return non-zero if /proc/PID/status indicates that PID is gone
52  (i.e., in Z/Zombie or X/Dead state). Failure to open the /proc
53  file is assumed to indicate the thread is gone. */
54 
55 extern int linux_proc_pid_is_gone (pid_t pid);
56 
57 /* Callback function for linux_proc_attach_tgid_threads. If the PTID
58  thread is not yet known, try to attach to it and return true,
59  otherwise return false. */
61 
62 /* If PID is a tgid, scan the /proc/PID/task/ directory for existing
63  threads, and call FUNC for each thread found. */
64 extern void linux_proc_attach_tgid_threads (pid_t pid,
66 
67 /* Return true if the /proc/PID/task/ directory exists. */
68 extern int linux_proc_task_list_dir_exists (pid_t pid);
69 
70 /* Return the full absolute name of the executable file that was run
71  to create the process PID. The returned value persists until this
72  function is next called. */
73 
74 extern char *linux_proc_pid_to_exec_file (int pid);
75 
76 #endif /* COMMON_LINUX_PROCFS_H */
int(* linux_proc_attach_lwp_func)(ptid_t ptid)
Definition: linux-procfs.h:60
int linux_proc_pid_is_gone(pid_t pid)
Definition: linux-procfs.c:108
int linux_proc_get_tgid(pid_t lwpid)
Definition: linux-procfs.c:60
void(* func)(char *)
void linux_proc_attach_tgid_threads(pid_t pid, linux_proc_attach_lwp_func func)
Definition: linux-procfs.c:191
Definition: ptid.h:35
int linux_proc_pid_is_stopped(pid_t pid)
Definition: linux-procfs.c:149
pid_t linux_proc_get_tracerpid_nowarn(pid_t lwpid)
Definition: linux-procfs.c:68
int linux_proc_pid_is_zombie(pid_t pid)
Definition: linux-procfs.c:183
const char const char int
Definition: command.h:229
int linux_proc_pid_is_trace_stopped_nowarn(pid_t pid)
Definition: linux-procfs.c:158
int linux_proc_pid_is_zombie_nowarn(pid_t pid)
Definition: linux-procfs.c:175
char * linux_proc_pid_to_exec_file(int pid)
Definition: linux-procfs.c:261
int linux_proc_task_list_dir_exists(pid_t pid)
Definition: linux-procfs.c:249
mach_port_t mach_port_t name mach_port_t mach_port_t name error_t int int rusage_t pid_t pid
Definition: gnu-nat.c:1818