From owner-freebsd-current  Sat Jan 30 10:00:58 1999
Return-Path: <owner-freebsd-current@FreeBSD.ORG>
Received: (from majordom@localhost)
          by hub.freebsd.org (8.8.8/8.8.8) id KAA18189
          for freebsd-current-outgoing; Sat, 30 Jan 1999 10:00:58 -0800 (PST)
          (envelope-from owner-freebsd-current@FreeBSD.ORG)
Received: from lion.plab.ku.dk (lion.plab.ku.dk [130.225.105.49])
          by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id KAA18184
          for <freebsd-current@FreeBSD.ORG>; Sat, 30 Jan 1999 10:00:57 -0800 (PST)
          (envelope-from tobez@lion.plab.ku.dk)
Received: (from tobez@localhost)
	by lion.plab.ku.dk (8.9.2/8.9.1) id TAA69056;
	Sat, 30 Jan 1999 19:01:31 +0100 (CET)
To: freebsd-current@FreeBSD.ORG
Subject: sigpending with pthreads - bug or feature?
From: Anton Berezin <tobez@plab.ku.dk>
Date: 30 Jan 1999 19:01:31 +0100
Message-ID: <863e4s1vyc.fsf@lion.plab.ku.dk>
Lines: 43
X-Mailer: Gnus v5.3/Emacs 19.34
Sender: owner-freebsd-current@FreeBSD.ORG
Precedence: bulk
X-Loop: FreeBSD.ORG


I don't know whether I should file a bug report on this issue.

Consider the following little program:

	/* t.c */
	#include <stdio.h>
	#include <signal.h>

	int
	main( void)
	{
	   sigset_t set;
	   sigpending( &set);
	   return 0;
	}

Compiling and running it:

	$ cc t.c
	$ ./a.out
	$

And trying to do the same with threads:

	$ cc -pthread t.c
	/var/tmp/ccs690421.o: In function `main':
	/var/tmp/ccs690421.o(.text+0x1a): undefined reference to `sigpending'
	$

However,

	$ nm /usr/lib/libc_r.a | grep sigpending
	sigpending.o:
	00000040 T _thread_sys_sigpending
	$

Apparently this one is not documented anywhere.  Is it a missing alias
then?  Or is one simply not allowed to use sigpending() with threads?

-- 
Anton Berezin <tobez@plab.ku.dk>
The Protein Laboratory, University of Copenhagen

To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-current" in the body of the message