SymbX/systemd
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

signal-util: add common implementation for propagating a signal

Browse Source 
i.e. let's add a common logic to be called from a signal handler to
raise the passed signal again.

Follow-up for: #25399
This commit is contained in:
Lennart Poettering
2022-11-17 22:38:14 +09:00
committed by Yu Watanabe
parent 58dad4d5e5
commit 128a11ea99
4 changed files with 26 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/core/crash-handler.c
+4 -8
View File
@@ -47,11 +47,10 @@ _noreturn_ static void crash(int sig, siginfo_t *siginfo, void *context) {
* memory allocation is not async-signal-safe anyway — see signal-safety(7) for details —, and thus
* is not permissible in signal handlers.) */
if (getpid_cached() != 1) {
if (getpid_cached() != 1)
/* Pass this on immediately, if this is not PID 1 */
if (rt_tgsigqueueinfo(getpid_cached(), gettid(), sig, siginfo) < 0)
(void) raise(sig);
} else if (!arg_dump_core)
propagate_signal(sig, siginfo);
else if (!arg_dump_core)
log_emergency("Caught <%s>, not dumping core.", signal_to_string(sig));
else {
sa = (struct sigaction) {
@@ -80,10 +79,7 @@ _noreturn_ static void crash(int sig, siginfo_t *siginfo, void *context) {
(void) chdir("/");
/* Raise the signal again */
pid = raw_getpid();
if (rt_tgsigqueueinfo(pid, gettid(), sig, siginfo) < 0)
(void) kill(pid, sig); /* raise() would kill the parent */
propagate_signal(sig, siginfo);
assert_not_reached();
_exit(EXIT_EXCEPTION);
} else {