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_USER_HZ 100 10 #define COMPAT_UTS_MACHINE "sparc\0\0" 11 12 typedef u32 compat_size_t; 13 typedef s32 compat_ssize_t; 14 typedef s32 compat_time_t; 15 typedef s32 compat_clock_t; 16 typedef s32 compat_pid_t; 17 typedef u16 __compat_uid_t; 18 typedef u16 __compat_gid_t; 19 typedef u32 __compat_uid32_t; 20 typedef u32 __compat_gid32_t; 21 typedef u16 compat_mode_t; 22 typedef u32 compat_ino_t; 23 typedef u16 compat_dev_t; 24 typedef s32 compat_off_t; 25 typedef s64 compat_loff_t; 26 typedef s16 compat_nlink_t; 27 typedef u16 compat_ipc_pid_t; 28 typedef s32 compat_daddr_t; 29 typedef u32 compat_caddr_t; 30 typedef __kernel_fsid_t compat_fsid_t; 31 typedef s32 compat_key_t; 32 typedef s32 compat_timer_t; 33 34 typedef s32 compat_int_t; 35 typedef s32 compat_long_t; 36 typedef s64 compat_s64; 37 typedef u32 compat_uint_t; 38 typedef u32 compat_ulong_t; 39 typedef u64 compat_u64; 40 typedef u32 compat_uptr_t; 41 42 struct compat_timespec { 43 compat_time_t tv_sec; 44 s32 tv_nsec; 45 }; 46 47 struct compat_timeval { 48 compat_time_t tv_sec; 49 s32 tv_usec; 50 }; 51 52 struct compat_stat { 53 compat_dev_t st_dev; 54 compat_ino_t st_ino; 55 compat_mode_t st_mode; 56 compat_nlink_t st_nlink; 57 __compat_uid_t st_uid; 58 __compat_gid_t st_gid; 59 compat_dev_t st_rdev; 60 compat_off_t st_size; 61 compat_time_t st_atime; 62 compat_ulong_t st_atime_nsec; 63 compat_time_t st_mtime; 64 compat_ulong_t st_mtime_nsec; 65 compat_time_t st_ctime; 66 compat_ulong_t st_ctime_nsec; 67 compat_off_t st_blksize; 68 compat_off_t st_blocks; 69 u32 __unused4[2]; 70 }; 71 72 struct compat_stat64 { 73 unsigned long long st_dev; 74 75 unsigned long long st_ino; 76 77 unsigned int st_mode; 78 unsigned int st_nlink; 79 80 unsigned int st_uid; 81 unsigned int st_gid; 82 83 unsigned long long st_rdev; 84 85 unsigned char __pad3[8]; 86 87 long long st_size; 88 unsigned int st_blksize; 89 90 unsigned char __pad4[8]; 91 unsigned int st_blocks; 92 93 unsigned int st_atime; 94 unsigned int st_atime_nsec; 95 96 unsigned int st_mtime; 97 unsigned int st_mtime_nsec; 98 99 unsigned int st_ctime; 100 unsigned int st_ctime_nsec; 101 102 unsigned int __unused4; 103 unsigned int __unused5; 104 }; 105 106 struct compat_flock { 107 short l_type; 108 short l_whence; 109 compat_off_t l_start; 110 compat_off_t l_len; 111 compat_pid_t l_pid; 112 short __unused; 113 }; 114 115 #define F_GETLK64 12 116 #define F_SETLK64 13 117 #define F_SETLKW64 14 118 119 struct compat_flock64 { 120 short l_type; 121 short l_whence; 122 compat_loff_t l_start; 123 compat_loff_t l_len; 124 compat_pid_t l_pid; 125 short __unused; 126 }; 127 128 struct compat_statfs { 129 int f_type; 130 int f_bsize; 131 int f_blocks; 132 int f_bfree; 133 int f_bavail; 134 int f_files; 135 int f_ffree; 136 compat_fsid_t f_fsid; 137 int f_namelen; /* SunOS ignores this field. */ 138 int f_frsize; 139 int f_flags; 140 int f_spare[4]; 141 }; 142 143 #define COMPAT_RLIM_INFINITY 0x7fffffff 144 145 typedef u32 compat_old_sigset_t; 146 147 #define _COMPAT_NSIG 64 148 #define _COMPAT_NSIG_BPW 32 149 150 typedef u32 compat_sigset_word; 151 152 typedef union compat_sigval { 153 compat_int_t sival_int; 154 compat_uptr_t sival_ptr; 155 } compat_sigval_t; 156 157 #define SI_PAD_SIZE32 (128/sizeof(int) - 3) 158 159 typedef struct compat_siginfo { 160 int si_signo; 161 int si_errno; 162 int si_code; 163 164 union { 165 int _pad[SI_PAD_SIZE32]; 166 167 /* kill() */ 168 struct { 169 compat_pid_t _pid; /* sender's pid */ 170 unsigned int _uid; /* sender's uid */ 171 } _kill; 172 173 /* POSIX.1b timers */ 174 struct { 175 compat_timer_t _tid; /* timer id */ 176 int _overrun; /* overrun count */ 177 compat_sigval_t _sigval; /* same as below */ 178 int _sys_private; /* not to be passed to user */ 179 } _timer; 180 181 /* POSIX.1b signals */ 182 struct { 183 compat_pid_t _pid; /* sender's pid */ 184 unsigned int _uid; /* sender's uid */ 185 compat_sigval_t _sigval; 186 } _rt; 187 188 /* SIGCHLD */ 189 struct { 190 compat_pid_t _pid; /* which child */ 191 unsigned int _uid; /* sender's uid */ 192 int _status; /* exit code */ 193 compat_clock_t _utime; 194 compat_clock_t _stime; 195 } _sigchld; 196 197 /* SIGILL, SIGFPE, SIGSEGV, SIGBUS, SIGEMT */ 198 struct { 199 u32 _addr; /* faulting insn/memory ref. */ 200 int _trapno; 201 } _sigfault; 202 203 /* SIGPOLL */ 204 struct { 205 int _band; /* POLL_IN, POLL_OUT, POLL_MSG */ 206 int _fd; 207 } _sigpoll; 208 } _sifields; 209 } compat_siginfo_t; 210 211 #define COMPAT_OFF_T_MAX 0x7fffffff 212 #define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL 213 214 /* 215 * A pointer passed in from user mode. This should not 216 * be used for syscall parameters, just declare them 217 * as pointers because the syscall entry code will have 218 * appropriately converted them already. 219 */ 220 221 static inline void __user *compat_ptr(compat_uptr_t uptr) 222 { 223 return (void __user *)(unsigned long)uptr; 224 } 225 226 static inline compat_uptr_t ptr_to_compat(void __user *uptr) 227 { 228 return (u32)(unsigned long)uptr; 229 } 230 231 static inline void __user *arch_compat_alloc_user_space(long len) 232 { 233 struct pt_regs *regs = current_thread_info()->kregs; 234 unsigned long usp = regs->u_regs[UREG_I6]; 235 236 if (test_thread_64bit_stack(usp)) 237 usp += STACK_BIAS; 238 239 if (test_thread_flag(TIF_32BIT)) 240 usp &= 0xffffffffUL; 241 242 usp -= len; 243 usp &= ~0x7UL; 244 245 return (void __user *) usp; 246 } 247 248 struct compat_ipc64_perm { 249 compat_key_t key; 250 __compat_uid32_t uid; 251 __compat_gid32_t gid; 252 __compat_uid32_t cuid; 253 __compat_gid32_t cgid; 254 unsigned short __pad1; 255 compat_mode_t mode; 256 unsigned short __pad2; 257 unsigned short seq; 258 unsigned long __unused1; /* yes they really are 64bit pads */ 259 unsigned long __unused2; 260 }; 261 262 struct compat_semid64_ds { 263 struct compat_ipc64_perm sem_perm; 264 unsigned int __pad1; 265 compat_time_t sem_otime; 266 unsigned int __pad2; 267 compat_time_t sem_ctime; 268 u32 sem_nsems; 269 u32 __unused1; 270 u32 __unused2; 271 }; 272 273 struct compat_msqid64_ds { 274 struct compat_ipc64_perm msg_perm; 275 unsigned int __pad1; 276 compat_time_t msg_stime; 277 unsigned int __pad2; 278 compat_time_t msg_rtime; 279 unsigned int __pad3; 280 compat_time_t msg_ctime; 281 unsigned int msg_cbytes; 282 unsigned int msg_qnum; 283 unsigned int msg_qbytes; 284 compat_pid_t msg_lspid; 285 compat_pid_t msg_lrpid; 286 unsigned int __unused1; 287 unsigned int __unused2; 288 }; 289 290 struct compat_shmid64_ds { 291 struct compat_ipc64_perm shm_perm; 292 unsigned int __pad1; 293 compat_time_t shm_atime; 294 unsigned int __pad2; 295 compat_time_t shm_dtime; 296 unsigned int __pad3; 297 compat_time_t shm_ctime; 298 compat_size_t shm_segsz; 299 compat_pid_t shm_cpid; 300 compat_pid_t shm_lpid; 301 unsigned int shm_nattch; 302 unsigned int __unused1; 303 unsigned int __unused2; 304 }; 305 306 static inline int is_compat_task(void) 307 { 308 return test_thread_flag(TIF_32BIT); 309 } 310 311 static inline bool in_compat_syscall(void) 312 { 313 /* Vector 0x110 is LINUX_32BIT_SYSCALL_TRAP */ 314 return pt_regs_trap_type(current_pt_regs()) == 0x110; 315 } 316 #define in_compat_syscall in_compat_syscall 317 318 #endif /* _ASM_SPARC64_COMPAT_H */ 319