arch/sparc/include/asm/compat.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 #ifndef _ASM_SPARC64_COMPAT_H
   3 #define _ASM_SPARC64_COMPAT_H
   4 /*
   5  * Architecture specific compatibility types
   6  */
   7 #include <linux/types.h>
   8
   9 #define compat_mode_t   compat_mode_t
  10 typedef u16             compat_mode_t;
  11
  12 #define __compat_uid_t  __compat_uid_t
  13 typedef u16             __compat_uid_t;
  14 typedef u16             __compat_gid_t;
  15
  16 #define compat_dev_t    compat_dev_t
  17 typedef u16             compat_dev_t;
  18
  19 #define compat_ipc_pid_t compat_ipc_pid_t
  20 typedef u16              compat_ipc_pid_t;
  21
  22 #define compat_ipc64_perm compat_ipc64_perm
  23
  24 #define COMPAT_RLIM_INFINITY 0x7fffffff
  25
  26 #include <asm-generic/compat.h>
  27
  28 #define COMPAT_UTS_MACHINE      "sparc\0\0"
  29
  30 typedef s16             compat_nlink_t;
  31
  32 struct compat_stat {
  33         compat_dev_t    st_dev;
  34         compat_ino_t    st_ino;
  35         compat_mode_t   st_mode;
  36         compat_nlink_t  st_nlink;
  37         __compat_uid_t  st_uid;
  38         __compat_gid_t  st_gid;
  39         compat_dev_t    st_rdev;
  40         compat_off_t    st_size;
  41         old_time32_t    st_atime;
  42         compat_ulong_t  st_atime_nsec;
  43         old_time32_t    st_mtime;
  44         compat_ulong_t  st_mtime_nsec;
  45         old_time32_t    st_ctime;
  46         compat_ulong_t  st_ctime_nsec;
  47         compat_off_t    st_blksize;
  48         compat_off_t    st_blocks;
  49         u32             __unused4[2];
  50 };
  51
  52 struct compat_stat64 {
  53         unsigned long long      st_dev;
  54
  55         unsigned long long      st_ino;
  56
  57         unsigned int    st_mode;
  58         unsigned int    st_nlink;
  59
  60         unsigned int    st_uid;
  61         unsigned int    st_gid;
  62
  63         unsigned long long      st_rdev;
  64
  65         unsigned char   __pad3[8];
  66
  67         long long       st_size;
  68         unsigned int    st_blksize;
  69
  70         unsigned char   __pad4[8];
  71         unsigned int    st_blocks;
  72
  73         unsigned int    st_atime;
  74         unsigned int    st_atime_nsec;
  75
  76         unsigned int    st_mtime;
  77         unsigned int    st_mtime_nsec;
  78
  79         unsigned int    st_ctime;
  80         unsigned int    st_ctime_nsec;
  81
  82         unsigned int    __unused4;
  83         unsigned int    __unused5;
  84 };
  85
  86 #define __ARCH_COMPAT_FLOCK_PAD         short __unused;
  87
  88 struct compat_ipc64_perm {
  89         compat_key_t key;
  90         __compat_uid32_t uid;
  91         __compat_gid32_t gid;
  92         __compat_uid32_t cuid;
  93         __compat_gid32_t cgid;
  94         unsigned short __pad1;
  95         compat_mode_t mode;
  96         unsigned short __pad2;
  97         unsigned short seq;
  98         unsigned long __unused1;        /* yes they really are 64bit pads */
  99         unsigned long __unused2;
 100 };
 101
 102 struct compat_semid64_ds {
 103         struct compat_ipc64_perm sem_perm;
 104         unsigned int    sem_otime_high;
 105         unsigned int    sem_otime;
 106         unsigned int    sem_ctime_high;
 107         unsigned int    sem_ctime;
 108         u32             sem_nsems;
 109         u32             __unused1;
 110         u32             __unused2;
 111 };
 112
 113 struct compat_msqid64_ds {
 114         struct compat_ipc64_perm msg_perm;
 115         unsigned int    msg_stime_high;
 116         unsigned int    msg_stime;
 117         unsigned int    msg_rtime_high;
 118         unsigned int    msg_rtime;
 119         unsigned int    msg_ctime_high;
 120         unsigned int    msg_ctime;
 121         unsigned int    msg_cbytes;
 122         unsigned int    msg_qnum;
 123         unsigned int    msg_qbytes;
 124         compat_pid_t    msg_lspid;
 125         compat_pid_t    msg_lrpid;
 126         unsigned int    __unused1;
 127         unsigned int    __unused2;
 128 };
 129
 130 struct compat_shmid64_ds {
 131         struct compat_ipc64_perm shm_perm;
 132         unsigned int    shm_atime_high;
 133         unsigned int    shm_atime;
 134         unsigned int    shm_dtime_high;
 135         unsigned int    shm_dtime;
 136         unsigned int    shm_ctime_high;
 137         unsigned int    shm_ctime;
 138         compat_size_t   shm_segsz;
 139         compat_pid_t    shm_cpid;
 140         compat_pid_t    shm_lpid;
 141         unsigned int    shm_nattch;
 142         unsigned int    __unused1;
 143         unsigned int    __unused2;
 144 };
 145
 146 #ifdef CONFIG_COMPAT
 147 static inline int is_compat_task(void)
 148 {
 149         return test_thread_flag(TIF_32BIT);
 150 }
 151
 152 static inline bool in_compat_syscall(void)
 153 {
 154         /* Vector 0x110 is LINUX_32BIT_SYSCALL_TRAP */
 155         return pt_regs_trap_type(current_pt_regs()) == 0x110;
 156 }
 157 #define in_compat_syscall in_compat_syscall
 158 #endif
 159
 160 #endif /* _ASM_SPARC64_COMPAT_H */