nptl: Add more coverage in tst-cancel4
[glibc.git] / sysvipc / shmat.c
blobd9fc4db566cf7cba99aaebbc7d7dcce425db56f8
1 /* Copyright (C) 1995-2016 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
3 Contributed by Ulrich Drepper <drepper@gnu.ai.mit.edu>, August 1995.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
19 #include <sys/shm.h>
20 #include <errno.h>
22 /* Attach the shared memory segment associated with SHMID to the data
23 segment of the calling process. SHMADDR and SHMFLG determine how
24 and where the segment is attached. */
26 void *
27 shmat (int shmid, const void *shmaddr, int shmflg)
29 __set_errno (ENOSYS);
30 return (void *) -1;
33 stub_warning (shmat)