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 25 struct compat_stat { 26 compat_dev_t st_dev; 27 compat_ino_t st_ino; 28 compat_mode_t st_mode; 29 compat_nlink_t st_nlink; 30 __compat_uid_t st_uid; 31 __compat_gid_t st_gid; 32 compat_dev_t st_rdev; 33 compat_off_t st_size; 34 old_time32_t st_atime; 35 compat_ulong_t st_atime_nsec; 36 old_time32_t st_mtime; 37 compat_ulong_t st_mtime_nsec; 38 old_time32_t st_ctime; 39 compat_ulong_t st_ctime_nsec; 40 compat_off_t st_blksize; 41 compat_off_t st_blocks; 42 u32 __unused4[2]; 43 }; 44 45 struct compat_stat64 { 46 unsigned long long st_dev; 47 48 unsigned long long st_ino; 49 50 unsigned int st_mode; 51 unsigned int st_nlink; 52 53 unsigned int st_uid; 54 unsigned int st_gid; 55 56 unsigned long long st_rdev; 57 58 unsigned char __pad3[8]; 59 60 long long st_size; 61 unsigned int st_blksize; 62 63 unsigned char __pad4[8]; 64 unsigned int st_blocks; 65 66 unsigned int st_atime; 67 unsigned int st_atime_nsec; 68 69 unsigned int st_mtime; 70 unsigned int st_mtime_nsec; 71 72 unsigned int st_ctime; 73 unsigned int st_ctime_nsec; 74 75 unsigned int __unused4; 76 unsigned int __unused5; 77 }; 78 79 struct compat_flock { 80 short l_type; 81 short l_whence; 82 compat_off_t l_start; 83 compat_off_t l_len; 84 compat_pid_t l_pid; 85 short __unused; 86 }; 87 88 #define F_GETLK64 12 89 #define F_SETLK64 13 90 #define F_SETLKW64 14 91 92 struct compat_flock64 { 93 short l_type; 94 short l_whence; 95 compat_loff_t l_start; 96 compat_loff_t l_len; 97 compat_pid_t l_pid; 98 short __unused; 99 }; 100 101 struct compat_statfs { 102 int f_type; 103 int f_bsize; 104 int f_blocks; 105 int f_bfree; 106 int f_bavail; 107 int f_files; 108 int f_ffree; 109 compat_fsid_t f_fsid; 110 int f_namelen; /* SunOS ignores this field. */ 111 int f_frsize; 112 int f_flags; 113 int f_spare[4]; 114 }; 115 116 #define COMPAT_RLIM_INFINITY 0x7fffffff 117 118 typedef u32 compat_old_sigset_t; 119 120 #define _COMPAT_NSIG 64 121 #define _COMPAT_NSIG_BPW 32 122 123 typedef u32 compat_sigset_word; 124 125 #define COMPAT_OFF_T_MAX 0x7fffffff 126 127 #ifdef CONFIG_COMPAT 128 static inline void __user *arch_compat_alloc_user_space(long len) 129 { 130 struct pt_regs *regs = current_thread_info()->kregs; 131 unsigned long usp = regs->u_regs[UREG_I6]; 132 133 if (test_thread_64bit_stack(usp)) 134 usp += STACK_BIAS; 135 136 if (test_thread_flag(TIF_32BIT)) 137 usp &= 0xffffffffUL; 138 139 usp -= len; 140 usp &= ~0x7UL; 141 142 return (void __user *) usp; 143 } 144 #endif 145 146 struct compat_ipc64_perm { 147 compat_key_t key; 148 __compat_uid32_t uid; 149 __compat_gid32_t gid; 150 __compat_uid32_t cuid; 151 __compat_gid32_t cgid; 152 unsigned short __pad1; 153 compat_mode_t mode; 154 unsigned short __pad2; 155 unsigned short seq; 156 unsigned long __unused1; /* yes they really are 64bit pads */ 157 unsigned long __unused2; 158 }; 159 160 struct compat_semid64_ds { 161 struct compat_ipc64_perm sem_perm; 162 unsigned int sem_otime_high; 163 unsigned int sem_otime; 164 unsigned int sem_ctime_high; 165 unsigned int sem_ctime; 166 u32 sem_nsems; 167 u32 __unused1; 168 u32 __unused2; 169 }; 170 171 struct compat_msqid64_ds { 172 struct compat_ipc64_perm msg_perm; 173 unsigned int msg_stime_high; 174 unsigned int msg_stime; 175 unsigned int msg_rtime_high; 176 unsigned int msg_rtime; 177 unsigned int msg_ctime_high; 178 unsigned int msg_ctime; 179 unsigned int msg_cbytes; 180 unsigned int msg_qnum; 181 unsigned int msg_qbytes; 182 compat_pid_t msg_lspid; 183 compat_pid_t msg_lrpid; 184 unsigned int __unused1; 185 unsigned int __unused2; 186 }; 187 188 struct compat_shmid64_ds { 189 struct compat_ipc64_perm shm_perm; 190 unsigned int shm_atime_high; 191 unsigned int shm_atime; 192 unsigned int shm_dtime_high; 193 unsigned int shm_dtime; 194 unsigned int shm_ctime_high; 195 unsigned int shm_ctime; 196 compat_size_t shm_segsz; 197 compat_pid_t shm_cpid; 198 compat_pid_t shm_lpid; 199 unsigned int shm_nattch; 200 unsigned int __unused1; 201 unsigned int __unused2; 202 }; 203 204 #ifdef CONFIG_COMPAT 205 static inline int is_compat_task(void) 206 { 207 return test_thread_flag(TIF_32BIT); 208 } 209 210 static inline bool in_compat_syscall(void) 211 { 212 /* Vector 0x110 is LINUX_32BIT_SYSCALL_TRAP */ 213 return pt_regs_trap_type(current_pt_regs()) == 0x110; 214 } 215 #define in_compat_syscall in_compat_syscall 216 #endif 217 218 #endif /* _ASM_SPARC64_COMPAT_H */ 219