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 <asm-generic/hugetlb_encode.h> 24#include <unistd.h> 25#define SHMMIN 1 26#define SHMMNI 4096 27#define SHMMAX (ULONG_MAX - (1UL << 24)) 28#define SHMALL (ULONG_MAX - (1UL << 24)) 29#define SHMSEG SHMMNI 30struct __kernel_legacy_shmid_ds { 31 struct __kernel_legacy_ipc_perm shm_perm; 32 int shm_segsz; 33 __kernel_time_t shm_atime; 34 __kernel_time_t shm_dtime; 35 __kernel_time_t shm_ctime; 36 __kernel_ipc_pid_t shm_cpid; 37 __kernel_ipc_pid_t shm_lpid; 38 unsigned short shm_nattch; 39 unsigned short shm_unused; 40 void * shm_unused2; 41 void * shm_unused3; 42}; 43#include <asm/shmbuf.h> 44#define SHM_R 0400 45#define SHM_W 0200 46#define SHM_HUGETLB 04000 47#define SHM_NORESERVE 010000 48#define SHM_HUGE_SHIFT HUGETLB_FLAG_ENCODE_SHIFT 49#define SHM_HUGE_MASK HUGETLB_FLAG_ENCODE_MASK 50#define SHM_HUGE_64KB HUGETLB_FLAG_ENCODE_64KB 51#define SHM_HUGE_512KB HUGETLB_FLAG_ENCODE_512KB 52#define SHM_HUGE_1MB HUGETLB_FLAG_ENCODE_1MB 53#define SHM_HUGE_2MB HUGETLB_FLAG_ENCODE_2MB 54#define SHM_HUGE_8MB HUGETLB_FLAG_ENCODE_8MB 55#define SHM_HUGE_16MB HUGETLB_FLAG_ENCODE_16MB 56#define SHM_HUGE_256MB HUGETLB_FLAG_ENCODE_256MB 57#define SHM_HUGE_1GB HUGETLB_FLAG_ENCODE_1GB 58#define SHM_HUGE_2GB HUGETLB_FLAG_ENCODE_2GB 59#define SHM_HUGE_16GB HUGETLB_FLAG_ENCODE_16GB 60#define SHM_RDONLY 010000 61#define SHM_RND 020000 62#define SHM_REMAP 040000 63#define SHM_EXEC 0100000 64#define SHM_LOCK 11 65#define SHM_UNLOCK 12 66#define SHM_STAT 13 67#define SHM_INFO 14 68struct shminfo { 69 int shmmax; 70 int shmmin; 71 int shmmni; 72 int shmseg; 73 int shmall; 74}; 75struct shm_info { 76 int used_ids; 77 __kernel_ulong_t shm_tot; 78 __kernel_ulong_t shm_rss; 79 __kernel_ulong_t shm_swp; 80 __kernel_ulong_t swap_attempts; 81 __kernel_ulong_t swap_successes; 82}; 83#endif 84