1 /**************************************************************************** 2 **************************************************************************** 3 *** 4 *** This header was automatically generated from a Linux kernel header 5 *** of the same name, to make information necessary for userspace to 6 *** call into the kernel available to libc. It contains only constants, 7 *** structures, and macros generated from the original header, and thus, 8 *** contains no copyrightable information. 9 *** 10 *** To edit the content of this header, modify the corresponding 11 *** source file (e.g. under external/kernel-headers/original/) then 12 *** run bionic/libc/kernel/tools/update_all.py 13 *** 14 *** Any manual change here will be lost the next time this script will 15 *** be run. You've been warned! 16 *** 17 **************************************************************************** 18 ****************************************************************************/ 19 #ifndef _UAPI_LINUX_SHM_H_ 20 #define _UAPI_LINUX_SHM_H_ 21 #include <linux/ipc.h> 22 #include <linux/errno.h> 23 #include <unistd.h> 24 #define SHMMIN 1 25 #define SHMMNI 4096 26 #define SHMMAX (ULONG_MAX - (1UL << 24)) 27 #define SHMALL (ULONG_MAX - (1UL << 24)) 28 #define SHMSEG SHMMNI 29 struct __kernel_legacy_shmid_ds { 30 struct __kernel_legacy_ipc_perm shm_perm; 31 int shm_segsz; 32 __kernel_time_t shm_atime; 33 __kernel_time_t shm_dtime; 34 __kernel_time_t shm_ctime; 35 __kernel_ipc_pid_t shm_cpid; 36 __kernel_ipc_pid_t shm_lpid; 37 unsigned short shm_nattch; 38 unsigned short shm_unused; 39 void * shm_unused2; 40 void * shm_unused3; 41 }; 42 #include <asm/shmbuf.h> 43 #define SHM_R 0400 44 #define SHM_W 0200 45 #define SHM_RDONLY 010000 46 #define SHM_RND 020000 47 #define SHM_REMAP 040000 48 #define SHM_EXEC 0100000 49 #define SHM_LOCK 11 50 #define SHM_UNLOCK 12 51 #define SHM_STAT 13 52 #define SHM_INFO 14 53 struct shminfo { 54 int shmmax; 55 int shmmin; 56 int shmmni; 57 int shmseg; 58 int shmall; 59 }; 60 struct shm_info { 61 int used_ids; 62 __kernel_ulong_t shm_tot; 63 __kernel_ulong_t shm_rss; 64 __kernel_ulong_t shm_swp; 65 __kernel_ulong_t swap_attempts; 66 __kernel_ulong_t swap_successes; 67 }; 68 #endif 69