diff options
Diffstat (limited to 'sysdeps/unix/sysv/linux/alpha/shmctl.c')
| -rw-r--r-- | sysdeps/unix/sysv/linux/alpha/shmctl.c | 135 |
1 files changed, 0 insertions, 135 deletions
diff --git a/sysdeps/unix/sysv/linux/alpha/shmctl.c b/sysdeps/unix/sysv/linux/alpha/shmctl.c deleted file mode 100644 index e63211fa00..0000000000 --- a/sysdeps/unix/sysv/linux/alpha/shmctl.c +++ /dev/null @@ -1,135 +0,0 @@ -/* Copyright (C) 1995,1997,1998,2000,2003,2006 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, 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 <ipc_priv.h> - -#include <sysdep.h> -#include <string.h> -#include <sys/syscall.h> -#include <bits/wordsize.h> -#include <bp-checks.h> - -#include <kernel-features.h> - -struct __old_shmid_ds -{ - struct __old_ipc_perm shm_perm; /* operation permission struct */ - int shm_segsz; /* size of segment in bytes */ - __time_t shm_atime; /* time of last shmat() */ - __time_t shm_dtime; /* time of last shmdt() */ - __time_t shm_ctime; /* time of last change by shmctl() */ - __ipc_pid_t shm_cpid; /* pid of creator */ - __ipc_pid_t shm_lpid; /* pid of last shmop */ - unsigned short int shm_nattch; /* number of current attaches */ - unsigned short int __shm_npages; /* size of segment (pages) */ - unsigned long int *__unbounded __shm_pages; /* array of ptrs to frames -> SHMMAX */ - struct vm_area_struct *__unbounded __attaches; /* descriptors for attaches */ -}; - -struct __old_shminfo -{ - int shmmax; - int shmmin; - int shmmni; - int shmseg; - int shmall; -}; - -/* Provide operations to control over shared memory segments. */ -int __new_shmctl (int, int, struct shmid_ds *); - -int -__new_shmctl (int shmid, int cmd, struct shmid_ds *buf) -{ -#if __ASSUME_32BITUIDS > 0 - return INLINE_SYSCALL (shmctl, 3, shmid, cmd | __IPC_64, CHECK_1 (buf)); -#else - switch (cmd) { - case SHM_STAT: - case IPC_STAT: - case IPC_SET: - case IPC_INFO: - break; - default: - return INLINE_SYSCALL (shmctl, 3, shmid, cmd, CHECK_1 (buf)); - } - - { - int save_errno = errno, result; - struct __old_shmid_ds old; - - /* Unfortunately there is no way how to find out for sure whether - we should use old or new shmctl. */ - result = INLINE_SYSCALL (shmctl, 3, shmid, cmd | __IPC_64, CHECK_1 (buf)); - if (result != -1 || errno != EINVAL) - return result; - - __set_errno(save_errno); - if (cmd == IPC_SET) - { - old.shm_perm.uid = buf->shm_perm.uid; - old.shm_perm.gid = buf->shm_perm.gid; - old.shm_perm.mode = buf->shm_perm.mode; - if (old.shm_perm.uid != buf->shm_perm.uid || - old.shm_perm.gid != buf->shm_perm.gid) - { - __set_errno (EINVAL); - return -1; - } - } - result = INLINE_SYSCALL (shmctl, 3, shmid, cmd, __ptrvalue (&old)); - if (result != -1 && (cmd == SHM_STAT || cmd == IPC_STAT)) - { - memset(buf, 0, sizeof(*buf)); - buf->shm_perm.__key = old.shm_perm.__key; - buf->shm_perm.uid = old.shm_perm.uid; - buf->shm_perm.gid = old.shm_perm.gid; - buf->shm_perm.cuid = old.shm_perm.cuid; - buf->shm_perm.cgid = old.shm_perm.cgid; - buf->shm_perm.mode = old.shm_perm.mode; - buf->shm_perm.__seq = old.shm_perm.__seq; - buf->shm_atime = old.shm_atime; - buf->shm_dtime = old.shm_dtime; - buf->shm_ctime = old.shm_ctime; - buf->shm_segsz = old.shm_segsz; - buf->shm_nattch = old.shm_nattch; - buf->shm_cpid = old.shm_cpid; - buf->shm_lpid = old.shm_lpid; - } - else if (result != -1 && cmd == IPC_INFO) - { - struct __old_shminfo *oldi = (void *)&old; - struct shminfo *i = (struct shminfo *)buf; - - memset(i, 0, sizeof(*i)); - i->shmmax = oldi->shmmax; - i->shmmin = oldi->shmmin; - i->shmmni = oldi->shmmni; - i->shmseg = oldi->shmseg; - i->shmall = oldi->shmall; - } - return result; - } -#endif -} - -#include <shlib-compat.h> -versioned_symbol (libc, __new_shmctl, shmctl, GLIBC_2_2); |