arch/mips/include/asm/compat.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _ASM_COMPAT_H
   3 #define _ASM_COMPAT_H
   4 /*
   5  * Architecture specific compatibility types
   6  */
   7 #include <linux/thread_info.h>
   8 #include <linux/types.h>
   9 #include <asm/page.h>
  10 #include <asm/ptrace.h>
  11
  12 typedef s32             __compat_uid_t;
  13 typedef s32             __compat_gid_t;
  14 typedef __compat_uid_t  __compat_uid32_t;
  15 typedef __compat_gid_t  __compat_gid32_t;
  16 #define __compat_uid32_t __compat_uid32_t
  17 #define __compat_gid32_t __compat_gid32_t
  18
  19 #define _COMPAT_NSIG            128             /* Don't ask !$@#% ...  */
  20 #define _COMPAT_NSIG_BPW        32
  21 typedef u32             compat_sigset_word;
  22
  23 #include <asm-generic/compat.h>
  24
  25 #define COMPAT_USER_HZ          100
  26 #define COMPAT_UTS_MACHINE      "mips\0\0\0"
  27
  28 typedef u32             compat_dev_t;
  29 typedef u32             compat_nlink_t;
  30 typedef s32             compat_ipc_pid_t;
  31 typedef struct {
  32         s32     val[2];
  33 } compat_fsid_t;
  34
  35 struct compat_stat {
  36         compat_dev_t    st_dev;
  37         s32             st_pad1[3];
  38         compat_ino_t    st_ino;
  39         compat_mode_t   st_mode;
  40         compat_nlink_t  st_nlink;
  41         __compat_uid_t  st_uid;
  42         __compat_gid_t  st_gid;
  43         compat_dev_t    st_rdev;
  44         s32             st_pad2[2];
  45         compat_off_t    st_size;
  46         s32             st_pad3;
  47         old_time32_t    st_atime;
  48         s32             st_atime_nsec;
  49         old_time32_t    st_mtime;
  50         s32             st_mtime_nsec;
  51         old_time32_t    st_ctime;
  52         s32             st_ctime_nsec;
  53         s32             st_blksize;
  54         s32             st_blocks;
  55         s32             st_pad4[14];
  56 };
  57
  58 struct compat_flock {
  59         short           l_type;
  60         short           l_whence;
  61         compat_off_t    l_start;
  62         compat_off_t    l_len;
  63         s32             l_sysid;
  64         compat_pid_t    l_pid;
  65         s32             pad[4];
  66 };
  67
  68 #define F_GETLK64       33
  69 #define F_SETLK64       34
  70 #define F_SETLKW64      35
  71
  72 struct compat_flock64 {
  73         short           l_type;
  74         short           l_whence;
  75         compat_loff_t   l_start;
  76         compat_loff_t   l_len;
  77         compat_pid_t    l_pid;
  78 };
  79
  80 struct compat_statfs {
  81         int             f_type;
  82         int             f_bsize;
  83         int             f_frsize;
  84         int             f_blocks;
  85         int             f_bfree;
  86         int             f_files;
  87         int             f_ffree;
  88         int             f_bavail;
  89         compat_fsid_t   f_fsid;
  90         int             f_namelen;
  91         int             f_flags;
  92         int             f_spare[5];
  93 };
  94
  95 #define COMPAT_RLIM_INFINITY    0x7fffffffUL
  96
  97 #define COMPAT_OFF_T_MAX        0x7fffffff
  98
  99 struct compat_ipc64_perm {
 100         compat_key_t key;
 101         __compat_uid32_t uid;
 102         __compat_gid32_t gid;
 103         __compat_uid32_t cuid;
 104         __compat_gid32_t cgid;
 105         compat_mode_t mode;
 106         unsigned short seq;
 107         unsigned short __pad2;
 108         compat_ulong_t __unused1;
 109         compat_ulong_t __unused2;
 110 };
 111
 112 struct compat_semid64_ds {
 113         struct compat_ipc64_perm sem_perm;
 114         compat_ulong_t  sem_otime;
 115         compat_ulong_t  sem_ctime;
 116         compat_ulong_t  sem_nsems;
 117         compat_ulong_t  sem_otime_high;
 118         compat_ulong_t  sem_ctime_high;
 119 };
 120
 121 struct compat_msqid64_ds {
 122         struct compat_ipc64_perm msg_perm;
 123 #ifndef CONFIG_CPU_LITTLE_ENDIAN
 124         compat_ulong_t  msg_stime_high;
 125 #endif
 126         compat_ulong_t  msg_stime;
 127 #ifdef CONFIG_CPU_LITTLE_ENDIAN
 128         compat_ulong_t  msg_stime_high;
 129 #endif
 130 #ifndef CONFIG_CPU_LITTLE_ENDIAN
 131         compat_ulong_t  msg_rtime_high;
 132 #endif
 133         compat_ulong_t  msg_rtime;
 134 #ifdef CONFIG_CPU_LITTLE_ENDIAN
 135         compat_ulong_t  msg_rtime_high;
 136 #endif
 137 #ifndef CONFIG_CPU_LITTLE_ENDIAN
 138         compat_ulong_t  msg_ctime_high;
 139 #endif
 140         compat_ulong_t  msg_ctime;
 141 #ifdef CONFIG_CPU_LITTLE_ENDIAN
 142         compat_ulong_t  msg_ctime_high;
 143 #endif
 144         compat_ulong_t  msg_cbytes;
 145         compat_ulong_t  msg_qnum;
 146         compat_ulong_t  msg_qbytes;
 147         compat_pid_t    msg_lspid;
 148         compat_pid_t    msg_lrpid;
 149         compat_ulong_t  __unused4;
 150         compat_ulong_t  __unused5;
 151 };
 152
 153 struct compat_shmid64_ds {
 154         struct compat_ipc64_perm shm_perm;
 155         compat_size_t   shm_segsz;
 156         compat_ulong_t  shm_atime;
 157         compat_ulong_t  shm_dtime;
 158         compat_ulong_t  shm_ctime;
 159         compat_pid_t    shm_cpid;
 160         compat_pid_t    shm_lpid;
 161         compat_ulong_t  shm_nattch;
 162         compat_ushort_t shm_atime_high;
 163         compat_ushort_t shm_dtime_high;
 164         compat_ushort_t shm_ctime_high;
 165         compat_ushort_t __unused2;
 166 };
 167
 168 /* MIPS has unusual order of fields in stack_t */
 169 typedef struct compat_sigaltstack {
 170         compat_uptr_t                   ss_sp;
 171         compat_size_t                   ss_size;
 172         int                             ss_flags;
 173 } compat_stack_t;
 174 #define compat_sigaltstack compat_sigaltstack
 175
 176 static inline int is_compat_task(void)
 177 {
 178         return test_thread_flag(TIF_32BIT_ADDR);
 179 }
 180
 181 #endif /* _ASM_COMPAT_H */