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96d7229d LM |
1 | /* Wrapper implementation for waitpid for GNU/Linux (LWP layer). |
2 | ||
b811d2c2 | 3 | Copyright (C) 2001-2020 Free Software Foundation, Inc. |
96d7229d LM |
4 | |
5 | This file is part of GDB. | |
6 | ||
7 | This program is free software; you can redistribute it and/or modify | |
8 | it under the terms of the GNU General Public License as published by | |
9 | the Free Software Foundation; either version 3 of the License, or | |
10 | (at your option) any later version. | |
11 | ||
12 | This program is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | You should have received a copy of the GNU General Public License | |
18 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
19 | ||
268a13a5 | 20 | #include "gdbsupport/common-defs.h" |
b006a80e | 21 | |
125f8a3d GB |
22 | #include "linux-nat.h" |
23 | #include "linux-waitpid.h" | |
268a13a5 | 24 | #include "gdbsupport/gdb_wait.h" |
96d7229d | 25 | |
d632a097 PA |
26 | /* Convert wait status STATUS to a string. Used for printing debug |
27 | messages only. */ | |
28 | ||
29 | char * | |
30 | status_to_str (int status) | |
31 | { | |
32 | static char buf[64]; | |
33 | ||
34 | if (WIFSTOPPED (status)) | |
35 | { | |
36 | if (WSTOPSIG (status) == SYSCALL_SIGTRAP) | |
37 | snprintf (buf, sizeof (buf), "%s (stopped at syscall)", | |
38 | strsignal (SIGTRAP)); | |
39 | else | |
40 | snprintf (buf, sizeof (buf), "%s (stopped)", | |
41 | strsignal (WSTOPSIG (status))); | |
42 | } | |
43 | else if (WIFSIGNALED (status)) | |
44 | snprintf (buf, sizeof (buf), "%s (terminated)", | |
45 | strsignal (WTERMSIG (status))); | |
46 | else | |
47 | snprintf (buf, sizeof (buf), "%d (exited)", WEXITSTATUS (status)); | |
48 | ||
49 | return buf; | |
50 | } | |
51 | ||
4a6ed09b | 52 | /* See linux-waitpid.h. */ |
96d7229d LM |
53 | |
54 | int | |
55 | my_waitpid (int pid, int *status, int flags) | |
56 | { | |
1c7fe951 | 57 | int ret; |
96d7229d | 58 | |
4a6ed09b | 59 | do |
96d7229d | 60 | { |
4a6ed09b | 61 | ret = waitpid (pid, status, flags); |
96d7229d | 62 | } |
4a6ed09b | 63 | while (ret == -1 && errno == EINTR); |
96d7229d | 64 | |
96d7229d LM |
65 | return ret; |
66 | } |