1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _ASM_SPARC64_COMPAT_H
3 #define _ASM_SPARC64_COMPAT_H
5 * Architecture specific compatibility types
7 #include <linux/types.h>
9 #define COMPAT_USER_HZ 100
10 #define COMPAT_UTS_MACHINE "sparc\0\0"
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;
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;
42 struct compat_timespec {
47 struct compat_timeval {
55 compat_mode_t st_mode;
56 compat_nlink_t st_nlink;
57 __compat_uid_t st_uid;
58 __compat_gid_t st_gid;
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;
72 struct compat_stat64 {
73 unsigned long long st_dev;
75 unsigned long long st_ino;
78 unsigned int st_nlink;
83 unsigned long long st_rdev;
85 unsigned char __pad3[8];
88 unsigned int st_blksize;
90 unsigned char __pad4[8];
91 unsigned int st_blocks;
93 unsigned int st_atime;
94 unsigned int st_atime_nsec;
96 unsigned int st_mtime;
97 unsigned int st_mtime_nsec;
99 unsigned int st_ctime;
100 unsigned int st_ctime_nsec;
102 unsigned int __unused4;
103 unsigned int __unused5;
106 struct compat_flock {
109 compat_off_t l_start;
117 #define F_SETLKW64 14
119 struct compat_flock64 {
122 compat_loff_t l_start;
128 struct compat_statfs {
136 compat_fsid_t f_fsid;
137 int f_namelen; /* SunOS ignores this field. */
143 #define COMPAT_RLIM_INFINITY 0x7fffffff
145 typedef u32 compat_old_sigset_t;
147 #define _COMPAT_NSIG 64
148 #define _COMPAT_NSIG_BPW 32
150 typedef u32 compat_sigset_word;
152 typedef union compat_sigval {
153 compat_int_t sival_int;
154 compat_uptr_t sival_ptr;
157 #define SI_PAD_SIZE32 (128/sizeof(int) - 3)
159 typedef struct compat_siginfo {
165 int _pad[SI_PAD_SIZE32];
169 compat_pid_t _pid; /* sender's pid */
170 unsigned int _uid; /* sender's uid */
173 /* POSIX.1b timers */
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 */
181 /* POSIX.1b signals */
183 compat_pid_t _pid; /* sender's pid */
184 unsigned int _uid; /* sender's uid */
185 compat_sigval_t _sigval;
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;
197 /* SIGILL, SIGFPE, SIGSEGV, SIGBUS, SIGEMT */
199 u32 _addr; /* faulting insn/memory ref. */
205 int _band; /* POLL_IN, POLL_OUT, POLL_MSG */
211 #define COMPAT_OFF_T_MAX 0x7fffffff
214 * A pointer passed in from user mode. This should not
215 * be used for syscall parameters, just declare them
216 * as pointers because the syscall entry code will have
217 * appropriately converted them already.
220 static inline void __user *compat_ptr(compat_uptr_t uptr)
222 return (void __user *)(unsigned long)uptr;
225 static inline compat_uptr_t ptr_to_compat(void __user *uptr)
227 return (u32)(unsigned long)uptr;
230 static inline void __user *arch_compat_alloc_user_space(long len)
232 struct pt_regs *regs = current_thread_info()->kregs;
233 unsigned long usp = regs->u_regs[UREG_I6];
235 if (test_thread_64bit_stack(usp))
238 if (test_thread_flag(TIF_32BIT))
244 return (void __user *) usp;
247 struct compat_ipc64_perm {
249 __compat_uid32_t uid;
250 __compat_gid32_t gid;
251 __compat_uid32_t cuid;
252 __compat_gid32_t cgid;
253 unsigned short __pad1;
255 unsigned short __pad2;
257 unsigned long __unused1; /* yes they really are 64bit pads */
258 unsigned long __unused2;
261 struct compat_semid64_ds {
262 struct compat_ipc64_perm sem_perm;
264 compat_time_t sem_otime;
266 compat_time_t sem_ctime;
272 struct compat_msqid64_ds {
273 struct compat_ipc64_perm msg_perm;
275 compat_time_t msg_stime;
277 compat_time_t msg_rtime;
279 compat_time_t msg_ctime;
280 unsigned int msg_cbytes;
281 unsigned int msg_qnum;
282 unsigned int msg_qbytes;
283 compat_pid_t msg_lspid;
284 compat_pid_t msg_lrpid;
285 unsigned int __unused1;
286 unsigned int __unused2;
289 struct compat_shmid64_ds {
290 struct compat_ipc64_perm shm_perm;
292 compat_time_t shm_atime;
294 compat_time_t shm_dtime;
296 compat_time_t shm_ctime;
297 compat_size_t shm_segsz;
298 compat_pid_t shm_cpid;
299 compat_pid_t shm_lpid;
300 unsigned int shm_nattch;
301 unsigned int __unused1;
302 unsigned int __unused2;
305 static inline int is_compat_task(void)
307 return test_thread_flag(TIF_32BIT);
310 static inline bool in_compat_syscall(void)
312 /* Vector 0x110 is LINUX_32BIT_SYSCALL_TRAP */
313 return pt_regs_trap_type(current_pt_regs()) == 0x110;
315 #define in_compat_syscall in_compat_syscall
317 #endif /* _ASM_SPARC64_COMPAT_H */