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 #define __compat_uid_t  __compat_uid_t
  13 typedef s32             __compat_uid_t;
  14 typedef s32             __compat_gid_t;
  15
  16 typedef __compat_uid_t  __compat_uid32_t;
  17 typedef __compat_gid_t  __compat_gid32_t;
  18 #define __compat_uid32_t __compat_uid32_t
  19
  20 #define compat_statfs           compat_statfs
  21 #define compat_ipc64_perm       compat_ipc64_perm
  22
  23 #define _COMPAT_NSIG            128             /* Don't ask !$@#% ...  */
  24 #define _COMPAT_NSIG_BPW        32
  25 typedef u32             compat_sigset_word;
  26
  27 #define COMPAT_RLIM_INFINITY    0x7fffffffUL
  28
  29 #include <asm-generic/compat.h>
  30
  31 #define COMPAT_UTS_MACHINE      "mips\0\0\0"
  32
  33 typedef u32             compat_nlink_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 #define __ARCH_COMPAT_FLOCK_EXTRA_SYSID         s32 l_sysid;
  59 #define __ARCH_COMPAT_FLOCK_PAD                 s32 pad[4];
  60
  61 struct compat_statfs {
  62         int             f_type;
  63         int             f_bsize;
  64         int             f_frsize;
  65         int             f_blocks;
  66         int             f_bfree;
  67         int             f_files;
  68         int             f_ffree;
  69         int             f_bavail;
  70         compat_fsid_t   f_fsid;
  71         int             f_namelen;
  72         int             f_flags;
  73         int             f_spare[5];
  74 };
  75
  76 struct compat_ipc64_perm {
  77         compat_key_t key;
  78         __compat_uid32_t uid;
  79         __compat_gid32_t gid;
  80         __compat_uid32_t cuid;
  81         __compat_gid32_t cgid;
  82         compat_mode_t mode;
  83         unsigned short seq;
  84         unsigned short __pad2;
  85         compat_ulong_t __unused1;
  86         compat_ulong_t __unused2;
  87 };
  88
  89 struct compat_semid64_ds {
  90         struct compat_ipc64_perm sem_perm;
  91         compat_ulong_t  sem_otime;
  92         compat_ulong_t  sem_ctime;
  93         compat_ulong_t  sem_nsems;
  94         compat_ulong_t  sem_otime_high;
  95         compat_ulong_t  sem_ctime_high;
  96 };
  97
  98 struct compat_msqid64_ds {
  99         struct compat_ipc64_perm msg_perm;
 100 #ifndef CONFIG_CPU_LITTLE_ENDIAN
 101         compat_ulong_t  msg_stime_high;
 102 #endif
 103         compat_ulong_t  msg_stime;
 104 #ifdef CONFIG_CPU_LITTLE_ENDIAN
 105         compat_ulong_t  msg_stime_high;
 106 #endif
 107 #ifndef CONFIG_CPU_LITTLE_ENDIAN
 108         compat_ulong_t  msg_rtime_high;
 109 #endif
 110         compat_ulong_t  msg_rtime;
 111 #ifdef CONFIG_CPU_LITTLE_ENDIAN
 112         compat_ulong_t  msg_rtime_high;
 113 #endif
 114 #ifndef CONFIG_CPU_LITTLE_ENDIAN
 115         compat_ulong_t  msg_ctime_high;
 116 #endif
 117         compat_ulong_t  msg_ctime;
 118 #ifdef CONFIG_CPU_LITTLE_ENDIAN
 119         compat_ulong_t  msg_ctime_high;
 120 #endif
 121         compat_ulong_t  msg_cbytes;
 122         compat_ulong_t  msg_qnum;
 123         compat_ulong_t  msg_qbytes;
 124         compat_pid_t    msg_lspid;
 125         compat_pid_t    msg_lrpid;
 126         compat_ulong_t  __unused4;
 127         compat_ulong_t  __unused5;
 128 };
 129
 130 struct compat_shmid64_ds {
 131         struct compat_ipc64_perm shm_perm;
 132         compat_size_t   shm_segsz;
 133         compat_ulong_t  shm_atime;
 134         compat_ulong_t  shm_dtime;
 135         compat_ulong_t  shm_ctime;
 136         compat_pid_t    shm_cpid;
 137         compat_pid_t    shm_lpid;
 138         compat_ulong_t  shm_nattch;
 139         compat_ushort_t shm_atime_high;
 140         compat_ushort_t shm_dtime_high;
 141         compat_ushort_t shm_ctime_high;
 142         compat_ushort_t __unused2;
 143 };
 144
 145 /* MIPS has unusual order of fields in stack_t */
 146 typedef struct compat_sigaltstack {
 147         compat_uptr_t                   ss_sp;
 148         compat_size_t                   ss_size;
 149         int                             ss_flags;
 150 } compat_stack_t;
 151 #define compat_sigaltstack compat_sigaltstack
 152
 153 static inline int is_compat_task(void)
 154 {
 155         return test_thread_flag(TIF_32BIT_ADDR);
 156 }
 157
 158 #endif /* _ASM_COMPAT_H */