mirror of
https://sourceware.org/git/glibc.git
synced 2025-10-30 10:45:40 +03:00
04277e02d7
* All files with FSF copyright notices: Update copyright dates using scripts/update-copyrights. * locale/programs/charmap-kw.h: Regenerated. * locale/programs/locfile-kw.h: Likewise.
47 lines
1.6 KiB
C
47 lines
1.6 KiB
C
/* Copyright (C) 1995-2019 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 Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 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
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<http://www.gnu.org/licenses/>. */
|
|
|
|
#include <sys/msg.h>
|
|
#include <ipc_priv.h>
|
|
#include <sysdep.h>
|
|
#include <errno.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 (int shmid, const void *shmaddr, int shmflg)
|
|
{
|
|
#ifdef __ASSUME_DIRECT_SYSVIPC_SYSCALLS
|
|
return (void*) INLINE_SYSCALL_CALL (shmat, shmid, shmaddr, shmflg);
|
|
#else
|
|
INTERNAL_SYSCALL_DECL(err);
|
|
unsigned long resultvar;
|
|
void *raddr;
|
|
|
|
resultvar = INTERNAL_SYSCALL_CALL (ipc, err, IPCOP_shmat, shmid, shmflg,
|
|
&raddr, shmaddr);
|
|
if (INTERNAL_SYSCALL_ERROR_P (resultvar, err))
|
|
return (void *) INLINE_SYSCALL_ERROR_RETURN_VALUE (INTERNAL_SYSCALL_ERRNO (resultvar,
|
|
err));
|
|
|
|
return raddr;
|
|
#endif
|
|
}
|