Path: utzoo!utgpu!watmath!clyde!att!rutgers!mailrus!cornell!uw-beaver!teknowledge-vaxc!mkhaw
From: mkhaw@teknowledge-vaxc.ARPA (Mike Khaw)
Newsgroups: comp.unix.questions
Subject: Re: signals to running processes
Message-ID: <26023@teknowledge-vaxc.ARPA>
Date: 1 Dec 88 20:23:38 GMT
References: <555@auspex.UUCP>
Organization: Teknowledge, Inc., Palo Alto CA
Lines: 24

<555@auspex.UUCP>, by guy@auspex.UUCP (Guy Harris):
> There are several systems that come to mind that 1) have SIGUSR1 as 30
> (by virtue of having picked up the 4.3BSD signal set) and 2) have
> "shmat" (by virtue of having picked up System V IPC).  SunOS releases
> 3.2 and later have both; I think Ultrix has "shmat" and probably has
> SIGUSR1 as 30 as well.

On Ultrix 2.2:

% fgrep SIGUSR1 /usr/include/signal.h
 *	Moved SIGUSR1 and SIGUSR2 to 30 and 31 to conform with Berkeley *
#define SIGUSR1   30	/* User signal 1 (from SysV) */

% man -k shmat
shmop, shmat, shmdt (2) - shared memory operations
% nm /lib/libc.a | fgrep shmat
shmat.o:
00000000 T _shmat

Mike Khaw
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