This patch updates the documentation regarding two NetBSD bugs that I just filed
(see attachments).
2023-02-03 Bruno Haible <br...@clisp.org>
doc: Update regarding NetBSD.
* doc/posix-functions/sigprocmask.texi: Mention a NetBSD 9.0 bug.
* doc/posix-functions/pthread_sigmask.texi: Likewise.
diff --git a/doc/posix-functions/pthread_sigmask.texi
b/doc/posix-functions/pthread_sigmask.texi
index 47ee1866b0..bbea927e4f 100644
--- a/doc/posix-functions/pthread_sigmask.texi
+++ b/doc/posix-functions/pthread_sigmask.texi
@@ -35,6 +35,6 @@ Portability problems not fixed by Gnulib:
On platforms that do not natively support this function,
it has unspecified behavior in a multi-threaded process.
@item
-This function may not fail when the first argument is invalid on some
platforms:
-NetBSD 8.0.
+In case of failure, the return value is wrong on some platforms:
+NetBSD 9.0 when libpthread is not in use.
@end itemize
diff --git a/doc/posix-functions/sigprocmask.texi
b/doc/posix-functions/sigprocmask.texi
index 1a1379a21d..2086e6a8b2 100644
--- a/doc/posix-functions/sigprocmask.texi
+++ b/doc/posix-functions/sigprocmask.texi
@@ -15,6 +15,9 @@ mingw, MSVC 14.
Portability problems not fixed by Gnulib:
@itemize
+@item
+In case of failure, the return value is wrong on some platforms:
+NetBSD 9.0 when libpthread is in use.
@end itemize
Note: Although @code{sigprocmask} officially has undefined behaviour in
To: gnats-b...@netbsd.org
Subject: pthread_sigmask return value wrong when libpthread is not in use
From: br...@clisp.org
Reply-To: br...@clisp.org
X-send-pr-version: 3.95
>Submitter-Id: net
>Originator:
>Organization: GNU
>Confidential: no
>Synopsis: The return value of pthread_sigmask is not standards compliant
>Severity: non-critical
>Priority: medium
>Category: lib
>Class: sw-bug
>Release: NetBSD 9.0
>Environment:
System: NetBSD netbsd9.bruno.haible.de 9.0 NetBSD 9.0 (GENERIC) #0: Fri Feb 14
00:06:28 UTC 2020
mkre...@mkrepro.netbsd.org:/usr/src/sys/arch/amd64/compile/GENERIC amd64
Architecture: x86_64
Machine: amd64
>Description:
When a program that is not linked with libpthread uses the pthread_sigmask
function, its return value can be wrong.
See
https://pubs.opengroup.org/onlinepubs/9699919799/functions/pthread_sigmask.html
section "RETURN VALUE".
>How-To-Repeat:
Compile this program
==================== foo.c ================
#include <errno.h>
#include <signal.h>
#include <stdio.h>
int main ()
{
sigset_t set;
int ret;
sigemptyset (&set);
sigaddset (&set, SIGINT);
ret = sigprocmask (1729, &set, NULL);
if (ret == 0)
printf ("sigprocmask succeeded!\n");
else
printf ("sigprocmask -> %d, errno=%d\n", ret, errno);
ret = pthread_sigmask (1729, &set, NULL);
if (ret == 0)
printf ("pthread_sigmask succeeded!\n");
else
printf ("pthread_sigmask -> %d\n", ret);
return 0;
}
=============================================
$ gcc -Wall foo.c
$ ./a.out
Expected output:
sigprocmask -> -1, errno=22
pthread_sigmask -> 22
Actual output:
sigprocmask -> -1, errno=22
pthread_sigmask -> -1
>Fix:
