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13da1c97 | 1 | /* Linux-specific PROCFS manipulation routines. |
b811d2c2 | 2 | Copyright (C) 2011-2020 Free Software Foundation, Inc. |
13da1c97 LM |
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 | ||
1a5c2598 TT |
19 | #ifndef NAT_LINUX_PROCFS_H |
20 | #define NAT_LINUX_PROCFS_H | |
13da1c97 LM |
21 | |
22 | #include <unistd.h> | |
23 | ||
24 | /* Return the TGID of LWPID from /proc/pid/status. Returns -1 if not | |
8784d563 | 25 | found. Failure to open the /proc file results in a warning. */ |
13da1c97 | 26 | |
87b0bb13 JK |
27 | extern int linux_proc_get_tgid (pid_t lwpid); |
28 | ||
8784d563 PA |
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. */ | |
87b0bb13 | 31 | |
8784d563 | 32 | extern pid_t linux_proc_get_tracerpid_nowarn (pid_t lwpid); |
13da1c97 | 33 | |
644cebc9 PA |
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 | ||
23f238d3 PA |
39 | extern int linux_proc_pid_is_trace_stopped_nowarn (pid_t pid); |
40 | ||
8784d563 PA |
41 | /* Return non-zero if PID is a zombie. Failure to open the |
42 | /proc/pid/status file results in a warning. */ | |
5f572dec JK |
43 | |
44 | extern int linux_proc_pid_is_zombie (pid_t pid); | |
45 | ||
8784d563 PA |
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 | ||
79efa585 SM |
57 | /* Return a string giving the thread's name or NULL if the |
58 | information is unavailable. The returned value points to a statically | |
59 | allocated buffer. The value therefore becomes invalid at the next | |
60 | linux_proc_tid_get_name call. */ | |
61 | ||
62 | extern const char *linux_proc_tid_get_name (ptid_t ptid); | |
63 | ||
8784d563 PA |
64 | /* Callback function for linux_proc_attach_tgid_threads. If the PTID |
65 | thread is not yet known, try to attach to it and return true, | |
66 | otherwise return false. */ | |
67 | typedef int (*linux_proc_attach_lwp_func) (ptid_t ptid); | |
68 | ||
69 | /* If PID is a tgid, scan the /proc/PID/task/ directory for existing | |
70 | threads, and call FUNC for each thread found. */ | |
71 | extern void linux_proc_attach_tgid_threads (pid_t pid, | |
72 | linux_proc_attach_lwp_func func); | |
73 | ||
2db9a427 PA |
74 | /* Return true if the /proc/PID/task/ directory exists. */ |
75 | extern int linux_proc_task_list_dir_exists (pid_t pid); | |
76 | ||
e0d86d2c GB |
77 | /* Return the full absolute name of the executable file that was run |
78 | to create the process PID. The returned value persists until this | |
79 | function is next called. */ | |
80 | ||
81 | extern char *linux_proc_pid_to_exec_file (int pid); | |
82 | ||
1b919490 VB |
83 | /* Display possible problems on this system. Display them only once |
84 | per GDB execution. */ | |
85 | ||
86 | extern void linux_proc_init_warnings (); | |
87 | ||
1a5c2598 | 88 | #endif /* NAT_LINUX_PROCFS_H */ |