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 */ 182