forked from pool/systemd
ba9b55aa79
1 OBS-URL: https://build.opensuse.org/request/show/262952 OBS-URL: https://build.opensuse.org/package/show/openSUSE:Factory/systemd?expand=0&rev=209
80 lines
3.9 KiB
Diff
80 lines
3.9 KiB
Diff
Based on 4dffec1459f50ac9f8f67ccfcb79836b4ed5a50e Mon Sep 17 00:00:00 2001
|
|
From: Lennart Poettering <lennart@poettering.net>
|
|
Date: Fri, 24 Oct 2014 13:44:45 +0200
|
|
Subject: [PATCH] manager: Linux on hppa has fewer rtsigs, hence avoid using
|
|
the higher ones there
|
|
|
|
https://bugs.freedesktop.org/show_bug.cgi?id=84931
|
|
---
|
|
src/core/manager.c | 29 +++++++++++++++++++++++++++--
|
|
1 file changed, 27 insertions(+), 2 deletions(-)
|
|
|
|
--- src/core/manager.c
|
|
+++ src/core/manager.c 2014-10-29 14:02:28.635837997 +0000
|
|
@@ -340,11 +340,14 @@ static int manager_setup_signals(Manager
|
|
|
|
assert(m);
|
|
|
|
- /* We are not interested in SIGSTOP and friends. */
|
|
assert_se(sigaction(SIGCHLD, &sa, NULL) == 0);
|
|
|
|
- assert_se(sigemptyset(&mask) == 0);
|
|
+ /* We make liberal use of realtime signals here. On
|
|
+ * Linux/glibc we have 30 of them (with the exception of Linux
|
|
+ * on hppa, see below), between SIGRTMIN+0 ... SIGRTMIN+30
|
|
+ * (aka SIGRTMAX). */
|
|
|
|
+ assert_se(sigemptyset(&mask) == 0);
|
|
sigset_add_many(&mask,
|
|
SIGCHLD, /* Child died */
|
|
SIGTERM, /* Reexecute daemon */
|
|
@@ -354,6 +357,7 @@ static int manager_setup_signals(Manager
|
|
SIGINT, /* Kernel sends us this on control-alt-del */
|
|
SIGWINCH, /* Kernel sends us this on kbrequest (alt-arrowup) */
|
|
SIGPWR, /* Some kernel drivers and upsd send us this on power failure */
|
|
+
|
|
SIGRTMIN+0, /* systemd: start default.target */
|
|
SIGRTMIN+1, /* systemd: isolate rescue.target */
|
|
SIGRTMIN+2, /* systemd: isolate emergency.target */
|
|
@@ -361,19 +365,40 @@ static int manager_setup_signals(Manager
|
|
SIGRTMIN+4, /* systemd: start poweroff.target */
|
|
SIGRTMIN+5, /* systemd: start reboot.target */
|
|
SIGRTMIN+6, /* systemd: start kexec.target */
|
|
+
|
|
+ /* ... space for more special targets ... */
|
|
+
|
|
SIGRTMIN+13, /* systemd: Immediate halt */
|
|
SIGRTMIN+14, /* systemd: Immediate poweroff */
|
|
SIGRTMIN+15, /* systemd: Immediate reboot */
|
|
SIGRTMIN+16, /* systemd: Immediate kexec */
|
|
+
|
|
+ /* ... space for more immediate system state changes ... */
|
|
+
|
|
SIGRTMIN+20, /* systemd: enable status messages */
|
|
SIGRTMIN+21, /* systemd: disable status messages */
|
|
SIGRTMIN+22, /* systemd: set log level to LOG_DEBUG */
|
|
SIGRTMIN+23, /* systemd: set log level to LOG_INFO */
|
|
SIGRTMIN+24, /* systemd: Immediate exit (--user only) */
|
|
+
|
|
+ /* .. one free signal here ... */
|
|
+
|
|
+#if !defined(__hppa64__) && !defined(__hppa__)
|
|
+ /* Apparently Linux on hppa has fewer RT
|
|
+ * signals (SIGRTMAX is SIGRTMIN+25 there),
|
|
+ * hence let's not try to make use of them
|
|
+ * here. Since these commands are accessible
|
|
+ * by different means and only really a safety
|
|
+ * net, the missing functionality on hppa
|
|
+ * shouldn't matter. */
|
|
+
|
|
SIGRTMIN+26, /* systemd: set log target to journal-or-kmsg */
|
|
SIGRTMIN+27, /* systemd: set log target to console */
|
|
SIGRTMIN+28, /* systemd: set log target to kmsg */
|
|
SIGRTMIN+29, /* systemd: set log target to syslog-or-kmsg */
|
|
+
|
|
+ /* ... one free signal here SIGRTMIN+30 ... */
|
|
+#endif
|
|
-1);
|
|
assert_se(sigprocmask(SIG_SETMASK, &mask, NULL) == 0);
|
|
|