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
30 struct __kernel_legacy_shmid_ds {
31   struct __kernel_legacy_ipc_perm shm_perm;
32   int shm_segsz;
33   __kernel_old_time_t shm_atime;
34   __kernel_old_time_t shm_dtime;
35   __kernel_old_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_32MB HUGETLB_FLAG_ENCODE_32MB
57 #define SHM_HUGE_256MB HUGETLB_FLAG_ENCODE_256MB
58 #define SHM_HUGE_512MB HUGETLB_FLAG_ENCODE_512MB
59 #define SHM_HUGE_1GB HUGETLB_FLAG_ENCODE_1GB
60 #define SHM_HUGE_2GB HUGETLB_FLAG_ENCODE_2GB
61 #define SHM_HUGE_16GB HUGETLB_FLAG_ENCODE_16GB
62 #define SHM_RDONLY 010000
63 #define SHM_RND 020000
64 #define SHM_REMAP 040000
65 #define SHM_EXEC 0100000
66 #define SHM_LOCK 11
67 #define SHM_UNLOCK 12
68 #define SHM_STAT 13
69 #define SHM_INFO 14
70 #define SHM_STAT_ANY 15
71 struct shminfo {
72   int shmmax;
73   int shmmin;
74   int shmmni;
75   int shmseg;
76   int shmall;
77 };
78 struct shm_info {
79   int used_ids;
80   __kernel_ulong_t shm_tot;
81   __kernel_ulong_t shm_rss;
82   __kernel_ulong_t shm_swp;
83   __kernel_ulong_t swap_attempts;
84   __kernel_ulong_t swap_successes;
85 };
86 #endif
87