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 #include <asm-generic/compat.h> 10 11 #define COMPAT_USER_HZ 100 12 #define COMPAT_UTS_MACHINE "sparc\0\0" 13 14 typedef u16 __compat_uid_t; 15 typedef u16 __compat_gid_t; 16 typedef u32 __compat_uid32_t; 17 typedef u32 __compat_gid32_t; 18 typedef u16 compat_mode_t; 19 typedef u16 compat_dev_t; 20 typedef s16 compat_nlink_t; 21 typedef u16 compat_ipc_pid_t; 22 typedef u32 compat_caddr_t; 23 typedef __kernel_fsid_t compat_fsid_t; 24 typedef s64 compat_s64; 25 typedef u64 compat_u64; 26 struct compat_stat { 27 compat_dev_t st_dev; 28 compat_ino_t st_ino; 29 compat_mode_t st_mode; 30 compat_nlink_t st_nlink; 31 __compat_uid_t st_uid; 32 __compat_gid_t st_gid; 33 compat_dev_t st_rdev; 34 compat_off_t st_size; 35 old_time32_t st_atime; 36 compat_ulong_t st_atime_nsec; 37 old_time32_t st_mtime; 38 compat_ulong_t st_mtime_nsec; 39 old_time32_t st_ctime; 40 compat_ulong_t st_ctime_nsec; 41 compat_off_t st_blksize; 42 compat_off_t st_blocks; 43 u32 __unused4[2]; 44 }; 45 46 struct compat_stat64 { 47 unsigned long long st_dev; 48 49 unsigned long long st_ino; 50 51 unsigned int st_mode; 52 unsigned int st_nlink; 53 54 unsigned int st_uid; 55 unsigned int st_gid; 56 57 unsigned long long st_rdev; 58 59 unsigned char __pad3[8]; 60 61 long long st_size; 62 unsigned int st_blksize; 63 64 unsigned char __pad4[8]; 65 unsigned int st_blocks; 66 67 unsigned int st_atime; 68 unsigned int st_atime_nsec; 69 70 unsigned int st_mtime; 71 unsigned int st_mtime_nsec; 72 73 unsigned int st_ctime; 74 unsigned int st_ctime_nsec; 75 76 unsigned int __unused4; 77 unsigned int __unused5; 78 }; 79 80 struct compat_flock { 81 short l_type; 82 short l_whence; 83 compat_off_t l_start; 84 compat_off_t l_len; 85 compat_pid_t l_pid; 86 short __unused; 87 }; 88 89 #define F_GETLK64 12 90 #define F_SETLK64 13 91 #define F_SETLKW64 14 92 93 struct compat_flock64 { 94 short l_type; 95 short l_whence; 96 compat_loff_t l_start; 97 compat_loff_t l_len; 98 compat_pid_t l_pid; 99 short __unused; 100 }; 101 102 struct compat_statfs { 103 int f_type; 104 int f_bsize; 105 int f_blocks; 106 int f_bfree; 107 int f_bavail; 108 int f_files; 109 int f_ffree; 110 compat_fsid_t f_fsid; 111 int f_namelen; /* SunOS ignores this field. */ 112 int f_frsize; 113 int f_flags; 114 int f_spare[4]; 115 }; 116 117 #define COMPAT_RLIM_INFINITY 0x7fffffff 118 119 typedef u32 compat_old_sigset_t; 120 121 #define _COMPAT_NSIG 64 122 #define _COMPAT_NSIG_BPW 32 123 124 typedef u32 compat_sigset_word; 125 126 #define COMPAT_OFF_T_MAX 0x7fffffff 127 128 /* 129 * A pointer passed in from user mode. This should not 130 * be used for syscall parameters, just declare them 131 * as pointers because the syscall entry code will have 132 * appropriately converted them already. 133 */ 134 135 static inline void __user *compat_ptr(compat_uptr_t uptr) 136 { 137 return (void __user *)(unsigned long)uptr; 138 } 139 140 static inline compat_uptr_t ptr_to_compat(void __user *uptr) 141 { 142 return (u32)(unsigned long)uptr; 143 } 144 145 #ifdef CONFIG_COMPAT 146 static inline void __user *arch_compat_alloc_user_space(long len) 147 { 148 struct pt_regs *regs = current_thread_info()->kregs; 149 unsigned long usp = regs->u_regs[UREG_I6]; 150 151 if (test_thread_64bit_stack(usp)) 152 usp += STACK_BIAS; 153 154 if (test_thread_flag(TIF_32BIT)) 155 usp &= 0xffffffffUL; 156 157 usp -= len; 158 usp &= ~0x7UL; 159 160 return (void __user *) usp; 161 } 162 #endif 163 164 struct compat_ipc64_perm { 165 compat_key_t key; 166 __compat_uid32_t uid; 167 __compat_gid32_t gid; 168 __compat_uid32_t cuid; 169 __compat_gid32_t cgid; 170 unsigned short __pad1; 171 compat_mode_t mode; 172 unsigned short __pad2; 173 unsigned short seq; 174 unsigned long __unused1; /* yes they really are 64bit pads */ 175 unsigned long __unused2; 176 }; 177 178 struct compat_semid64_ds { 179 struct compat_ipc64_perm sem_perm; 180 unsigned int sem_otime_high; 181 unsigned int sem_otime; 182 unsigned int sem_ctime_high; 183 unsigned int sem_ctime; 184 u32 sem_nsems; 185 u32 __unused1; 186 u32 __unused2; 187 }; 188 189 struct compat_msqid64_ds { 190 struct compat_ipc64_perm msg_perm; 191 unsigned int msg_stime_high; 192 unsigned int msg_stime; 193 unsigned int msg_rtime_high; 194 unsigned int msg_rtime; 195 unsigned int msg_ctime_high; 196 unsigned int msg_ctime; 197 unsigned int msg_cbytes; 198 unsigned int msg_qnum; 199 unsigned int msg_qbytes; 200 compat_pid_t msg_lspid; 201 compat_pid_t msg_lrpid; 202 unsigned int __unused1; 203 unsigned int __unused2; 204 }; 205 206 struct compat_shmid64_ds { 207 struct compat_ipc64_perm shm_perm; 208 unsigned int shm_atime_high; 209 unsigned int shm_atime; 210 unsigned int shm_dtime_high; 211 unsigned int shm_dtime; 212 unsigned int shm_ctime_high; 213 unsigned int shm_ctime; 214 compat_size_t shm_segsz; 215 compat_pid_t shm_cpid; 216 compat_pid_t shm_lpid; 217 unsigned int shm_nattch; 218 unsigned int __unused1; 219 unsigned int __unused2; 220 }; 221 222 #ifdef CONFIG_COMPAT 223 static inline int is_compat_task(void) 224 { 225 return test_thread_flag(TIF_32BIT); 226 } 227 228 static inline bool in_compat_syscall(void) 229 { 230 /* Vector 0x110 is LINUX_32BIT_SYSCALL_TRAP */ 231 return pt_regs_trap_type(current_pt_regs()) == 0x110; 232 } 233 #define in_compat_syscall in_compat_syscall 234 #endif 235 236 #endif /* _ASM_SPARC64_COMPAT_H */ 237