arch/powerpc/include/asm/compat.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _ASM_POWERPC_COMPAT_H
   3 #define _ASM_POWERPC_COMPAT_H
   4 #ifdef __KERNEL__
   5 /*
   6  * Architecture specific compatibility types
   7  */
   8 #include <linux/types.h>
   9 #include <linux/sched.h>
  10
  11 #define compat_ipc_pid_t compat_ipc_pid_t
  12 typedef u16             compat_ipc_pid_t;
  13
  14 #define compat_ipc64_perm compat_ipc64_perm
  15
  16 #include <asm-generic/compat.h>
  17
  18 #ifdef __BIG_ENDIAN__
  19 #define COMPAT_UTS_MACHINE      "ppc\0\0"
  20 #else
  21 #define COMPAT_UTS_MACHINE      "ppcle\0\0"
  22 #endif
  23
  24 typedef s16             compat_nlink_t;
  25
  26 struct compat_stat {
  27         compat_dev_t    st_dev;
  28         compat_ino_t    st_ino;
  29         compat_mode_t   st_mode;
  30         compat_nlink_t  st_nlink;
  31         __compat_uid32_t        st_uid;
  32         __compat_gid32_t        st_gid;
  33         compat_dev_t    st_rdev;
  34         compat_off_t    st_size;
  35         compat_off_t    st_blksize;
  36         compat_off_t    st_blocks;
  37         old_time32_t    st_atime;
  38         u32             st_atime_nsec;
  39         old_time32_t    st_mtime;
  40         u32             st_mtime_nsec;
  41         old_time32_t    st_ctime;
  42         u32             st_ctime_nsec;
  43         u32             __unused4[2];
  44 };
  45
  46 /*
  47  * ipc64_perm is actually 32/64bit clean but since the compat layer refers to
  48  * it we may as well define it.
  49  */
  50 struct compat_ipc64_perm {
  51         compat_key_t key;
  52         __compat_uid_t uid;
  53         __compat_gid_t gid;
  54         __compat_uid_t cuid;
  55         __compat_gid_t cgid;
  56         compat_mode_t mode;
  57         unsigned int seq;
  58         unsigned int __pad2;
  59         unsigned long __unused1;        /* yes they really are 64bit pads */
  60         unsigned long __unused2;
  61 };
  62
  63 struct compat_semid64_ds {
  64         struct compat_ipc64_perm sem_perm;
  65         unsigned int sem_otime_high;
  66         unsigned int sem_otime;
  67         unsigned int sem_ctime_high;
  68         unsigned int sem_ctime;
  69         compat_ulong_t sem_nsems;
  70         compat_ulong_t __unused3;
  71         compat_ulong_t __unused4;
  72 };
  73
  74 struct compat_msqid64_ds {
  75         struct compat_ipc64_perm msg_perm;
  76         unsigned int msg_stime_high;
  77         unsigned int msg_stime;
  78         unsigned int msg_rtime_high;
  79         unsigned int msg_rtime;
  80         unsigned int msg_ctime_high;
  81         unsigned int msg_ctime;
  82         compat_ulong_t msg_cbytes;
  83         compat_ulong_t msg_qnum;
  84         compat_ulong_t msg_qbytes;
  85         compat_pid_t msg_lspid;
  86         compat_pid_t msg_lrpid;
  87         compat_ulong_t __unused4;
  88         compat_ulong_t __unused5;
  89 };
  90
  91 struct compat_shmid64_ds {
  92         struct compat_ipc64_perm shm_perm;
  93         unsigned int shm_atime_high;
  94         unsigned int shm_atime;
  95         unsigned int shm_dtime_high;
  96         unsigned int shm_dtime;
  97         unsigned int shm_ctime_high;
  98         unsigned int shm_ctime;
  99         unsigned int __unused4;
 100         compat_size_t shm_segsz;
 101         compat_pid_t shm_cpid;
 102         compat_pid_t shm_lpid;
 103         compat_ulong_t shm_nattch;
 104         compat_ulong_t __unused5;
 105         compat_ulong_t __unused6;
 106 };
 107
 108 static inline int is_compat_task(void)
 109 {
 110         return is_32bit_task();
 111 }
 112
 113 #endif /* __KERNEL__ */
 114 #endif /* _ASM_POWERPC_COMPAT_H */