[PATCH] abort.3: Note that the glibc implementation is not async-signal-safe

Tomáš Golembiovský
2023-07-26T11:56:32Z

See https://sourceware.org/bugzilla/show_bug.cgi?id=26275

Cc: Carlos O'Donell <carlos@redhat.com>
Cc: Glibc <libc-alpha@sourceware.org>
Signed-off-by: Tomáš Golembiovský <tgolembi@redhat.com>
---
man3/abort.3 | 6 ++++++
man7/signal-safety.7 | 5 +++++
2 files changed, 11 insertions(+)

diff --git a/man3/abort.3 b/man3/abort.3
index 0b57e10ed..827d5c9db 100644
--- a/man3/abort.3
+++ b/man3/abort.3
@@ -85,6 +85,12 @@ terminates the process without flushing streams.
POSIX.1 permits either possible behavior, saying that
.BR abort ()
"may include an attempt to effect fclose() on all open streams".
+.SH BUGS
+The glibc implementation of
+.BR abort ()
+is not async-signal-safe,
+.\" FIXME . https://sourceware.org/bugzilla/show_bug.cgi?id=26275
+in violation of the requirements of POSIX.1.
.SH SEE ALSO
.BR gdb (1),
.BR sigaction (2),
diff --git a/man7/signal-safety.7 b/man7/signal-safety.7
index 3d6ddc7eb..431a22f89 100644
--- a/man7/signal-safety.7
+++ b/man7/signal-safety.7
@@ -335,6 +335,11 @@ The glibc implementation of
is not async-signal-safe because it uses
.BR pthread_mutex_lock (3)
internally.
+.IP \[bu]
+.\" FIXME . https://sourceware.org/bugzilla/show_bug.cgi?id=26275
+The glibc implementation of
+.BR abort (3)
+is not async-signal-safe.
.SH SEE ALSO
.BR sigaction (2),
.BR signal (7),
--
2.41.0