diff options
Diffstat (limited to 'sysdeps')
| -rw-r--r-- | sysdeps/unix/sysv/linux/Makefile | 1 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/bits/shm.h | 34 | ||||
| -rw-r--r-- | sysdeps/unix/sysv/linux/bits/types/struct_shmid_ds.h | 57 |
3 files changed, 59 insertions, 33 deletions
diff --git a/sysdeps/unix/sysv/linux/Makefile b/sysdeps/unix/sysv/linux/Makefile index f15392b499..a8f171bdc5 100644 --- a/sysdeps/unix/sysv/linux/Makefile +++ b/sysdeps/unix/sysv/linux/Makefile @@ -93,6 +93,7 @@ sysdep_headers += sys/mount.h sys/acct.h \ bits/termios-misc.h \ bits/types/struct_semid_ds.h \ bits/types/struct_msqid_ds.h \ + bits/types/struct_shmid_ds.h \ bits/ipc-perm.h \ sys/rseq.h bits/rseq.h diff --git a/sysdeps/unix/sysv/linux/bits/shm.h b/sysdeps/unix/sysv/linux/bits/shm.h index 113c05ee89..9ef6aeaf92 100644 --- a/sysdeps/unix/sysv/linux/bits/shm.h +++ b/sysdeps/unix/sysv/linux/bits/shm.h @@ -43,39 +43,7 @@ __BEGIN_DECLS /* Type to count number of attaches. */ typedef __syscall_ulong_t shmatt_t; -#if __SHM_PAD_BEFORE_TIME -# define __SHM_PAD_TIME(NAME, RES) \ - unsigned long int __glibc_reserved ## RES; __time_t NAME -#elif __SHM_PAD_AFTER_TIME -# define __SHM_PAD_TIME(NAME, RES) \ - __time_t NAME; unsigned long int __glibc_reserved ## RES -#else -# define __SHM_PAD_TIME(NAME, RES) \ - __time_t NAME -#endif - -/* Data structure describing a shared memory segment. */ -struct shmid_ds - { - struct ipc_perm shm_perm; /* operation permission struct */ -#if !__SHM_SEGSZ_AFTER_TIME - size_t shm_segsz; /* size of segment in bytes */ -#endif - __SHM_PAD_TIME (shm_atime, 1); /* time of last shmat() */ - __SHM_PAD_TIME (shm_dtime, 2); /* time of last shmdt() */ - __SHM_PAD_TIME (shm_ctime, 3); /* time of last change by shmctl() */ -#if __SHM_PAD_BETWEEN_TIME_AND_SEGSZ - unsigned long int __glibc_reserved4; -#endif -#if __SHM_SEGSZ_AFTER_TIME - size_t shm_segsz; /* size of segment in bytes */ -#endif - __pid_t shm_cpid; /* pid of creator */ - __pid_t shm_lpid; /* pid of last shmop */ - shmatt_t shm_nattch; /* number of current attaches */ - __syscall_ulong_t __glibc_reserved5; - __syscall_ulong_t __glibc_reserved6; - }; +#include <bits/types/struct_shmid_ds.h> #ifdef __USE_MISC diff --git a/sysdeps/unix/sysv/linux/bits/types/struct_shmid_ds.h b/sysdeps/unix/sysv/linux/bits/types/struct_shmid_ds.h new file mode 100644 index 0000000000..938bbedfcd --- /dev/null +++ b/sysdeps/unix/sysv/linux/bits/types/struct_shmid_ds.h @@ -0,0 +1,57 @@ +/* Generic implementation of the shared memory struct shmid_ds. + Copyright (C) 2020 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + 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 + <https://www.gnu.org/licenses/>. */ + +#ifndef _SYS_SHM_H +# error "Never include <bits/types/struct_shmid_ds.h> directly; use <sys/shm.h> instead." +#endif + +#include <bits/shm-pad.h> + +#if __SHM_PAD_BEFORE_TIME +# define __SHM_PAD_TIME(NAME, RES) \ + unsigned long int __glibc_reserved ## RES; __time_t NAME +#elif __SHM_PAD_AFTER_TIME +# define __SHM_PAD_TIME(NAME, RES) \ + __time_t NAME; unsigned long int __glibc_reserved ## RES +#else +# define __SHM_PAD_TIME(NAME, RES) \ + __time_t NAME +#endif + +/* Data structure describing a shared memory segment. */ +struct shmid_ds + { + struct ipc_perm shm_perm; /* operation permission struct */ +#if !__SHM_SEGSZ_AFTER_TIME + size_t shm_segsz; /* size of segment in bytes */ +#endif + __SHM_PAD_TIME (shm_atime, 1); /* time of last shmat() */ + __SHM_PAD_TIME (shm_dtime, 2); /* time of last shmdt() */ + __SHM_PAD_TIME (shm_ctime, 3); /* time of last change by shmctl() */ +#if __SHM_PAD_BETWEEN_TIME_AND_SEGSZ + unsigned long int __glibc_reserved4; +#endif +#if __SHM_SEGSZ_AFTER_TIME + size_t shm_segsz; /* size of segment in bytes */ +#endif + __pid_t shm_cpid; /* pid of creator */ + __pid_t shm_lpid; /* pid of last shmop */ + shmatt_t shm_nattch; /* number of current attaches */ + __syscall_ulong_t __glibc_reserved5; + __syscall_ulong_t __glibc_reserved6; + }; |