diff options
Diffstat (limited to 'REORG.TODO/sysdeps/unix/sysv/linux/shmctl.c')
-rw-r--r-- | REORG.TODO/sysdeps/unix/sysv/linux/shmctl.c | 73 |
1 files changed, 73 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/unix/sysv/linux/shmctl.c b/REORG.TODO/sysdeps/unix/sysv/linux/shmctl.c new file mode 100644 index 0000000000..96365b51fc --- /dev/null +++ b/REORG.TODO/sysdeps/unix/sysv/linux/shmctl.c @@ -0,0 +1,73 @@ +/* Copyright (C) 1995-2017 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/shm.h> +#include <stdarg.h> +#include <ipc_priv.h> +#include <sysdep.h> +#include <shlib-compat.h> +#include <errno.h> + + +#ifndef DEFAULT_VERSION +# define DEFAULT_VERSION GLIBC_2_2 +#endif + + +/* Provide operations to control over shared memory segments. */ +int +__new_shmctl (int shmid, int cmd, struct shmid_ds *buf) +{ +#ifdef __ASSUME_DIRECT_SYSVIPC_SYSCALLS + return INLINE_SYSCALL_CALL (shmctl, shmid, cmd | __IPC_64, buf); +#else + return INLINE_SYSCALL_CALL (ipc, IPCOP_shmctl, shmid, cmd | __IPC_64, 0, + buf); +#endif +} +versioned_symbol (libc, __new_shmctl, shmctl, DEFAULT_VERSION); + + +#if SHLIB_COMPAT (libc, GLIBC_2_0, GLIBC_2_2) +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 *__shm_pages; /* array of ptrs to frames -> SHMMAX */ + struct vm_area_struct *__attaches; /* descriptors for attaches */ +}; + +int +attribute_compat_text_section +__old_shmctl (int shmid, int cmd, struct __old_shmid_ds *buf) +{ +#ifdef __ASSUME_DIRECT_SYSVIPC_SYSCALLS + return INLINE_SYSCALL_CALL (shmctl, shmid, cmd, buf); +#else + return INLINE_SYSCALL_CALL (ipc, IPCOP_shmctl, shmid, cmd, 0, buf); +#endif +} +compat_symbol (libc, __old_shmctl, shmctl, GLIBC_2_0); +#endif |