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 #define COMPAT_OFF_T_MAX 0x7fffffff 153 154 /* 155 * A pointer passed in from user mode. This should not 156 * be used for syscall parameters, just declare them 157 * as pointers because the syscall entry code will have 158 * appropriately converted them already. 159 */ 160 161 static inline void __user *compat_ptr(compat_uptr_t uptr) 162 { 163 return (void __user *)(unsigned long)uptr; 164 } 165 166 static inline compat_uptr_t ptr_to_compat(void __user *uptr) 167 { 168 return (u32)(unsigned long)uptr; 169 } 170 171 static inline void __user *arch_compat_alloc_user_space(long len) 172 { 173 struct pt_regs *regs = current_thread_info()->kregs; 174 unsigned long usp = regs->u_regs[UREG_I6]; 175 176 if (test_thread_64bit_stack(usp)) 177 usp += STACK_BIAS; 178 179 if (test_thread_flag(TIF_32BIT)) 180 usp &= 0xffffffffUL; 181 182 usp -= len; 183 usp &= ~0x7UL; 184 185 return (void __user *) usp; 186 } 187 188 struct compat_ipc64_perm { 189 compat_key_t key; 190 __compat_uid32_t uid; 191 __compat_gid32_t gid; 192 __compat_uid32_t cuid; 193 __compat_gid32_t cgid; 194 unsigned short __pad1; 195 compat_mode_t mode; 196 unsigned short __pad2; 197 unsigned short seq; 198 unsigned long __unused1; /* yes they really are 64bit pads */ 199 unsigned long __unused2; 200 }; 201 202 struct compat_semid64_ds { 203 struct compat_ipc64_perm sem_perm; 204 unsigned int __pad1; 205 compat_time_t sem_otime; 206 unsigned int __pad2; 207 compat_time_t sem_ctime; 208 u32 sem_nsems; 209 u32 __unused1; 210 u32 __unused2; 211 }; 212 213 struct compat_msqid64_ds { 214 struct compat_ipc64_perm msg_perm; 215 unsigned int __pad1; 216 compat_time_t msg_stime; 217 unsigned int __pad2; 218 compat_time_t msg_rtime; 219 unsigned int __pad3; 220 compat_time_t msg_ctime; 221 unsigned int msg_cbytes; 222 unsigned int msg_qnum; 223 unsigned int msg_qbytes; 224 compat_pid_t msg_lspid; 225 compat_pid_t msg_lrpid; 226 unsigned int __unused1; 227 unsigned int __unused2; 228 }; 229 230 struct compat_shmid64_ds { 231 struct compat_ipc64_perm shm_perm; 232 unsigned int __pad1; 233 compat_time_t shm_atime; 234 unsigned int __pad2; 235 compat_time_t shm_dtime; 236 unsigned int __pad3; 237 compat_time_t shm_ctime; 238 compat_size_t shm_segsz; 239 compat_pid_t shm_cpid; 240 compat_pid_t shm_lpid; 241 unsigned int shm_nattch; 242 unsigned int __unused1; 243 unsigned int __unused2; 244 }; 245 246 static inline int is_compat_task(void) 247 { 248 return test_thread_flag(TIF_32BIT); 249 } 250 251 static inline bool in_compat_syscall(void) 252 { 253 /* Vector 0x110 is LINUX_32BIT_SYSCALL_TRAP */ 254 return pt_regs_trap_type(current_pt_regs()) == 0x110; 255 } 256 #define in_compat_syscall in_compat_syscall 257 258 #endif /* _ASM_SPARC64_COMPAT_H */ 259