| 1 | /* Wrapper implementation for waitpid for GNU/Linux (LWP layer). |
| 2 | |
| 3 | Copyright (C) 2001-2020 Free Software Foundation, Inc. |
| 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 | |
| 20 | #include "gdbsupport/common-defs.h" |
| 21 | |
| 22 | #include "linux-nat.h" |
| 23 | #include "linux-waitpid.h" |
| 24 | #include "gdbsupport/gdb_wait.h" |
| 25 | |
| 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 | |
| 52 | /* See linux-waitpid.h. */ |
| 53 | |
| 54 | int |
| 55 | my_waitpid (int pid, int *status, int flags) |
| 56 | { |
| 57 | int ret; |
| 58 | |
| 59 | do |
| 60 | { |
| 61 | ret = waitpid (pid, status, flags); |
| 62 | } |
| 63 | while (ret == -1 && errno == EINTR); |
| 64 | |
| 65 | return ret; |
| 66 | } |