glibc/sysdeps/unix/sysv/linux/shmat.c
Ulrich Drepper 3a8599b21c Update.
1999-07-13  Jakub Jelinek  <jj@ultra.linux.cz>

	* elf/ldd.bash.in: Add support for multiple dynamic linkers.
	* sysdeps/unix/sysv/linux/sparc/ldd-rewrite.sed: On sparc*linux*,
	try both 32bit and 64bit dynamic linker.
	* sysdeps/unix/sysv/linux/configure.in: Apply sparc ldd-rewrite
	script on all sparc targets.

1999-07-13  Jakub Jelinek  <jj@ultra.linux.cz>

	* sysdeps/unix/sysv/linux/shmat.c (shmat): Avoid casting a pointer
	to int.
1999-07-14 15:21:35 +00:00

44 lines
1.6 KiB
C

/* Copyright (C) 1995, 1997, 1998, 1999 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <errno.h>
#include <sys/shm.h>
#include <sysdep.h>
#include <sys/syscall.h>
/* Attach the shared memory segment associated with SHMID to the data
segment of the calling process. SHMADDR and SHMFLG determine how
and where the segment is attached. */
void *
shmat (shmid, shmaddr, shmflg)
int shmid;
const void *shmaddr;
int shmflg;
{
long int retval;
unsigned long raddr;
retval = INLINE_SYSCALL (ipc, 5, IPCOP_shmat, shmid, shmflg,
(long int) &raddr, (void *) shmaddr);
return ((unsigned long int) retval > -(unsigned long int) SHMLBA
? (void *) retval : (void *) raddr);
}