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
212 #define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL
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.
221 static inline void __user
*compat_ptr(compat_uptr_t uptr
)
223 return (void __user
*)(unsigned long)uptr
;
226 static inline compat_uptr_t
ptr_to_compat(void __user
*uptr
)
228 return (u32
)(unsigned long)uptr
;
231 static inline void __user
*arch_compat_alloc_user_space(long len
)
233 struct pt_regs
*regs
= current_thread_info()->kregs
;
234 unsigned long usp
= regs
->u_regs
[UREG_I6
];
236 if (test_thread_64bit_stack(usp
))
239 if (test_thread_flag(TIF_32BIT
))
245 return (void __user
*) usp
;
248 struct compat_ipc64_perm
{
250 __compat_uid32_t uid
;
251 __compat_gid32_t gid
;
252 __compat_uid32_t cuid
;
253 __compat_gid32_t cgid
;
254 unsigned short __pad1
;
256 unsigned short __pad2
;
258 unsigned long __unused1
; /* yes they really are 64bit pads */
259 unsigned long __unused2
;
262 struct compat_semid64_ds
{
263 struct compat_ipc64_perm sem_perm
;
265 compat_time_t sem_otime
;
267 compat_time_t sem_ctime
;
273 struct compat_msqid64_ds
{
274 struct compat_ipc64_perm msg_perm
;
276 compat_time_t msg_stime
;
278 compat_time_t msg_rtime
;
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
;
290 struct compat_shmid64_ds
{
291 struct compat_ipc64_perm shm_perm
;
293 compat_time_t shm_atime
;
295 compat_time_t shm_dtime
;
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
;
306 static inline int is_compat_task(void)
308 return test_thread_flag(TIF_32BIT
);
311 static inline bool in_compat_syscall(void)
313 /* Vector 0x110 is LINUX_32BIT_SYSCALL_TRAP */
314 return pt_regs_trap_type(current_pt_regs()) == 0x110;
316 #define in_compat_syscall in_compat_syscall
318 #endif /* _ASM_SPARC64_COMPAT_H */