4 * Copyright (c) 2003-2008 Fabrice Bellard
5 * Copyright (c) 2010 Red Hat, Inc.
7 * Permission is hereby granted, free of charge, to any person obtaining a copy
8 * of this software and associated documentation files (the "Software"), to deal
9 * in the Software without restriction, including without limitation the rights
10 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
11 * copies of the Software, and to permit persons to whom the Software is
12 * furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included in
15 * all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
18 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
21 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
22 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
29 #include <sys/types.h>
32 /* Needed early for CONFIG_BSD etc. */
33 #include "config-host.h"
36 void os_setup_early_signal_handling(void)
39 sigfillset(&act.sa_mask);
41 act.sa_handler = SIG_IGN;
42 sigaction(SIGPIPE, &act, NULL);
45 static void termsig_handler(int signal)
47 qemu_system_shutdown_request();
50 static void sigchld_handler(int signal)
52 waitpid(-1, NULL, WNOHANG);
55 void os_setup_signal_handling(void)
59 memset(&act, 0, sizeof(act));
60 act.sa_handler = termsig_handler;
61 sigaction(SIGINT, &act, NULL);
62 sigaction(SIGHUP, &act, NULL);
63 sigaction(SIGTERM, &act, NULL);
65 act.sa_handler = sigchld_handler;
66 act.sa_flags = SA_NOCLDSTOP;
67 sigaction(SIGCHLD, &act, NULL);