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1da177e4 LT |
1 | #ifndef _LINUX_COMPAT_H |
2 | #define _LINUX_COMPAT_H | |
3 | /* | |
4 | * These are the type definitions for the architecture specific | |
5 | * syscall compatibility layer. | |
6 | */ | |
1da177e4 LT |
7 | |
8 | #ifdef CONFIG_COMPAT | |
9 | ||
10 | #include <linux/stat.h> | |
11 | #include <linux/param.h> /* for HZ */ | |
12 | #include <linux/sem.h> | |
13 | ||
14 | #include <asm/compat.h> | |
15 | #include <asm/siginfo.h> | |
3f2e05e9 | 16 | #include <asm/signal.h> |
1da177e4 LT |
17 | |
18 | #define compat_jiffies_to_clock_t(x) \ | |
19 | (((unsigned long)(x) * COMPAT_USER_HZ) / HZ) | |
20 | ||
202e5979 SR |
21 | typedef __compat_uid32_t compat_uid_t; |
22 | typedef __compat_gid32_t compat_gid_t; | |
23 | ||
1da177e4 LT |
24 | struct rusage; |
25 | ||
26 | struct compat_itimerspec { | |
27 | struct compat_timespec it_interval; | |
28 | struct compat_timespec it_value; | |
29 | }; | |
30 | ||
31 | struct compat_utimbuf { | |
32 | compat_time_t actime; | |
33 | compat_time_t modtime; | |
34 | }; | |
35 | ||
36 | struct compat_itimerval { | |
37 | struct compat_timeval it_interval; | |
38 | struct compat_timeval it_value; | |
39 | }; | |
40 | ||
41 | struct compat_tms { | |
42 | compat_clock_t tms_utime; | |
43 | compat_clock_t tms_stime; | |
44 | compat_clock_t tms_cutime; | |
45 | compat_clock_t tms_cstime; | |
46 | }; | |
47 | ||
88959ea9 SR |
48 | struct compat_timex { |
49 | compat_uint_t modes; | |
50 | compat_long_t offset; | |
51 | compat_long_t freq; | |
52 | compat_long_t maxerror; | |
53 | compat_long_t esterror; | |
54 | compat_int_t status; | |
55 | compat_long_t constant; | |
56 | compat_long_t precision; | |
57 | compat_long_t tolerance; | |
58 | struct compat_timeval time; | |
59 | compat_long_t tick; | |
60 | compat_long_t ppsfreq; | |
61 | compat_long_t jitter; | |
62 | compat_int_t shift; | |
63 | compat_long_t stabil; | |
64 | compat_long_t jitcnt; | |
65 | compat_long_t calcnt; | |
66 | compat_long_t errcnt; | |
67 | compat_long_t stbcnt; | |
153b5d05 | 68 | compat_int_t tai; |
88959ea9 SR |
69 | |
70 | compat_int_t :32; compat_int_t :32; compat_int_t :32; compat_int_t :32; | |
71 | compat_int_t :32; compat_int_t :32; compat_int_t :32; compat_int_t :32; | |
153b5d05 | 72 | compat_int_t :32; compat_int_t :32; compat_int_t :32; |
88959ea9 SR |
73 | }; |
74 | ||
1da177e4 LT |
75 | #define _COMPAT_NSIG_WORDS (_COMPAT_NSIG / _COMPAT_NSIG_BPW) |
76 | ||
77 | typedef struct { | |
78 | compat_sigset_word sig[_COMPAT_NSIG_WORDS]; | |
79 | } compat_sigset_t; | |
80 | ||
1da177e4 LT |
81 | extern int get_compat_timespec(struct timespec *, const struct compat_timespec __user *); |
82 | extern int put_compat_timespec(const struct timespec *, struct compat_timespec __user *); | |
83 | ||
84 | struct compat_iovec { | |
85 | compat_uptr_t iov_base; | |
86 | compat_size_t iov_len; | |
87 | }; | |
88 | ||
89 | struct compat_rlimit { | |
90 | compat_ulong_t rlim_cur; | |
91 | compat_ulong_t rlim_max; | |
92 | }; | |
93 | ||
94 | struct compat_rusage { | |
95 | struct compat_timeval ru_utime; | |
96 | struct compat_timeval ru_stime; | |
97 | compat_long_t ru_maxrss; | |
98 | compat_long_t ru_ixrss; | |
99 | compat_long_t ru_idrss; | |
100 | compat_long_t ru_isrss; | |
101 | compat_long_t ru_minflt; | |
102 | compat_long_t ru_majflt; | |
103 | compat_long_t ru_nswap; | |
104 | compat_long_t ru_inblock; | |
105 | compat_long_t ru_oublock; | |
106 | compat_long_t ru_msgsnd; | |
107 | compat_long_t ru_msgrcv; | |
108 | compat_long_t ru_nsignals; | |
109 | compat_long_t ru_nvcsw; | |
110 | compat_long_t ru_nivcsw; | |
111 | }; | |
112 | ||
113 | extern int put_compat_rusage(const struct rusage *, struct compat_rusage __user *); | |
114 | ||
115 | struct compat_siginfo; | |
116 | ||
117 | extern asmlinkage long compat_sys_waitid(int, compat_pid_t, | |
118 | struct compat_siginfo __user *, int, | |
119 | struct compat_rusage __user *); | |
120 | ||
121 | struct compat_dirent { | |
122 | u32 d_ino; | |
123 | compat_off_t d_off; | |
124 | u16 d_reclen; | |
125 | char d_name[256]; | |
126 | }; | |
127 | ||
2b1c6bd7 CH |
128 | struct compat_ustat { |
129 | compat_daddr_t f_tfree; | |
130 | compat_ino_t f_tinode; | |
131 | char f_fname[6]; | |
132 | char f_fpack[6]; | |
133 | }; | |
134 | ||
1da177e4 LT |
135 | typedef union compat_sigval { |
136 | compat_int_t sival_int; | |
137 | compat_uptr_t sival_ptr; | |
138 | } compat_sigval_t; | |
139 | ||
140 | #define COMPAT_SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE/sizeof(int)) - 3) | |
141 | ||
142 | typedef struct compat_sigevent { | |
143 | compat_sigval_t sigev_value; | |
144 | compat_int_t sigev_signo; | |
145 | compat_int_t sigev_notify; | |
146 | union { | |
147 | compat_int_t _pad[COMPAT_SIGEV_PAD_SIZE]; | |
148 | compat_int_t _tid; | |
149 | ||
150 | struct { | |
151 | compat_uptr_t _function; | |
152 | compat_uptr_t _attribute; | |
153 | } _sigev_thread; | |
154 | } _sigev_un; | |
155 | } compat_sigevent_t; | |
156 | ||
34f192c6 IM |
157 | struct compat_robust_list { |
158 | compat_uptr_t next; | |
159 | }; | |
160 | ||
161 | struct compat_robust_list_head { | |
162 | struct compat_robust_list list; | |
163 | compat_long_t futex_offset; | |
164 | compat_uptr_t list_op_pending; | |
165 | }; | |
166 | ||
167 | extern void compat_exit_robust_list(struct task_struct *curr); | |
168 | ||
169 | asmlinkage long | |
170 | compat_sys_set_robust_list(struct compat_robust_list_head __user *head, | |
171 | compat_size_t len); | |
172 | asmlinkage long | |
ba46df98 | 173 | compat_sys_get_robust_list(int pid, compat_uptr_t __user *head_ptr, |
34f192c6 | 174 | compat_size_t __user *len_ptr); |
1da177e4 LT |
175 | |
176 | long compat_sys_semctl(int first, int second, int third, void __user *uptr); | |
177 | long compat_sys_msgsnd(int first, int second, int third, void __user *uptr); | |
178 | long compat_sys_msgrcv(int first, int second, int msgtyp, int third, | |
179 | int version, void __user *uptr); | |
180 | long compat_sys_msgctl(int first, int second, void __user *uptr); | |
181 | long compat_sys_shmat(int first, int second, compat_uptr_t third, int version, | |
182 | void __user *uptr); | |
183 | long compat_sys_shmctl(int first, int second, void __user *uptr); | |
184 | long compat_sys_semtimedop(int semid, struct sembuf __user *tsems, | |
185 | unsigned nsems, const struct compat_timespec __user *timeout); | |
186 | asmlinkage long compat_sys_keyctl(u32 option, | |
187 | u32 arg2, u32 arg3, u32 arg4, u32 arg5); | |
2b1c6bd7 | 188 | asmlinkage long compat_sys_ustat(unsigned dev, struct compat_ustat __user *u32); |
1da177e4 LT |
189 | |
190 | asmlinkage ssize_t compat_sys_readv(unsigned long fd, | |
191 | const struct compat_iovec __user *vec, unsigned long vlen); | |
192 | asmlinkage ssize_t compat_sys_writev(unsigned long fd, | |
193 | const struct compat_iovec __user *vec, unsigned long vlen); | |
f3554f4b GH |
194 | asmlinkage ssize_t compat_sys_preadv(unsigned long fd, |
195 | const struct compat_iovec __user *vec, | |
601cc11d | 196 | unsigned long vlen, u32 pos_low, u32 pos_high); |
f3554f4b GH |
197 | asmlinkage ssize_t compat_sys_pwritev(unsigned long fd, |
198 | const struct compat_iovec __user *vec, | |
601cc11d | 199 | unsigned long vlen, u32 pos_low, u32 pos_high); |
1da177e4 LT |
200 | |
201 | int compat_do_execve(char * filename, compat_uptr_t __user *argv, | |
202 | compat_uptr_t __user *envp, struct pt_regs * regs); | |
203 | ||
204 | asmlinkage long compat_sys_select(int n, compat_ulong_t __user *inp, | |
205 | compat_ulong_t __user *outp, compat_ulong_t __user *exp, | |
206 | struct compat_timeval __user *tvp); | |
207 | ||
c202f298 | 208 | asmlinkage long compat_sys_wait4(compat_pid_t pid, |
7d61c459 AV |
209 | compat_uint_t __user *stat_addr, int options, |
210 | struct compat_rusage __user *ru); | |
c202f298 | 211 | |
1da177e4 LT |
212 | #define BITS_PER_COMPAT_LONG (8*sizeof(compat_long_t)) |
213 | ||
214 | #define BITS_TO_COMPAT_LONGS(bits) \ | |
215 | (((bits)+BITS_PER_COMPAT_LONG-1)/BITS_PER_COMPAT_LONG) | |
216 | ||
5fa3839a | 217 | long compat_get_bitmap(unsigned long *mask, const compat_ulong_t __user *umask, |
1da177e4 LT |
218 | unsigned long bitmap_size); |
219 | long compat_put_bitmap(compat_ulong_t __user *umask, unsigned long *mask, | |
220 | unsigned long bitmap_size); | |
221 | int copy_siginfo_from_user32(siginfo_t *to, struct compat_siginfo __user *from); | |
222 | int copy_siginfo_to_user32(struct compat_siginfo __user *to, siginfo_t *from); | |
223 | int get_compat_sigevent(struct sigevent *event, | |
224 | const struct compat_sigevent __user *u_event); | |
62ab4505 TG |
225 | long compat_sys_rt_tgsigqueueinfo(compat_pid_t tgid, compat_pid_t pid, int sig, |
226 | struct compat_siginfo __user *uinfo); | |
1da177e4 | 227 | |
643a6545 AM |
228 | static inline int compat_timeval_compare(struct compat_timeval *lhs, |
229 | struct compat_timeval *rhs) | |
230 | { | |
231 | if (lhs->tv_sec < rhs->tv_sec) | |
232 | return -1; | |
233 | if (lhs->tv_sec > rhs->tv_sec) | |
234 | return 1; | |
235 | return lhs->tv_usec - rhs->tv_usec; | |
236 | } | |
237 | ||
238 | static inline int compat_timespec_compare(struct compat_timespec *lhs, | |
239 | struct compat_timespec *rhs) | |
240 | { | |
241 | if (lhs->tv_sec < rhs->tv_sec) | |
242 | return -1; | |
243 | if (lhs->tv_sec > rhs->tv_sec) | |
244 | return 1; | |
245 | return lhs->tv_nsec - rhs->tv_nsec; | |
246 | } | |
247 | ||
83f5d126 DL |
248 | extern int get_compat_itimerspec(struct itimerspec *dst, |
249 | const struct compat_itimerspec __user *src); | |
250 | extern int put_compat_itimerspec(struct compat_itimerspec __user *dst, | |
251 | const struct itimerspec *src); | |
252 | ||
b418da16 CH |
253 | asmlinkage long compat_sys_gettimeofday(struct compat_timeval __user *tv, |
254 | struct timezone __user *tz); | |
255 | asmlinkage long compat_sys_settimeofday(struct compat_timeval __user *tv, | |
256 | struct timezone __user *tz); | |
257 | ||
3158e941 SR |
258 | asmlinkage long compat_sys_adjtimex(struct compat_timex __user *utp); |
259 | ||
bebfa101 | 260 | extern int compat_printk(const char *fmt, ...); |
0235497f | 261 | extern void sigset_from_compat(sigset_t *set, compat_sigset_t *compat); |
bebfa101 | 262 | |
3fd59397 SR |
263 | asmlinkage long compat_sys_migrate_pages(compat_pid_t pid, |
264 | compat_ulong_t maxnode, const compat_ulong_t __user *old_nodes, | |
265 | const compat_ulong_t __user *new_nodes); | |
266 | ||
032d82d9 RM |
267 | extern int compat_ptrace_request(struct task_struct *child, |
268 | compat_long_t request, | |
269 | compat_ulong_t addr, compat_ulong_t data); | |
270 | ||
c269f196 RM |
271 | extern long compat_arch_ptrace(struct task_struct *child, compat_long_t request, |
272 | compat_ulong_t addr, compat_ulong_t data); | |
273 | asmlinkage long compat_sys_ptrace(compat_long_t request, compat_long_t pid, | |
274 | compat_long_t addr, compat_long_t data); | |
c269f196 | 275 | |
f6dfb4fd DL |
276 | /* |
277 | * epoll (fs/eventpoll.c) compat bits follow ... | |
278 | */ | |
f6dfb4fd DL |
279 | struct epoll_event; |
280 | #define compat_epoll_event epoll_event | |
f6dfb4fd DL |
281 | asmlinkage long compat_sys_epoll_pwait(int epfd, |
282 | struct compat_epoll_event __user *events, | |
283 | int maxevents, int timeout, | |
284 | const compat_sigset_t __user *sigmask, | |
285 | compat_size_t sigsetsize); | |
286 | ||
97416ce8 SR |
287 | asmlinkage long compat_sys_utimensat(unsigned int dfd, char __user *filename, |
288 | struct compat_timespec __user *t, int flags); | |
289 | ||
140ff8b0 SR |
290 | asmlinkage long compat_sys_signalfd(int ufd, |
291 | const compat_sigset_t __user *sigmask, | |
292 | compat_size_t sigsetsize); | |
4d672e7a DL |
293 | asmlinkage long compat_sys_timerfd_settime(int ufd, int flags, |
294 | const struct compat_itimerspec __user *utmr, | |
295 | struct compat_itimerspec __user *otmr); | |
296 | asmlinkage long compat_sys_timerfd_gettime(int ufd, | |
297 | struct compat_itimerspec __user *otmr); | |
140ff8b0 | 298 | |
4c696ba7 HC |
299 | asmlinkage long compat_sys_move_pages(pid_t pid, unsigned long nr_page, |
300 | __u32 __user *pages, | |
301 | const int __user *nodes, | |
302 | int __user *status, | |
303 | int flags); | |
304 | asmlinkage long compat_sys_futimesat(unsigned int dfd, char __user *filename, | |
305 | struct compat_timeval __user *t); | |
306 | asmlinkage long compat_sys_newfstatat(unsigned int dfd, char __user * filename, | |
307 | struct compat_stat __user *statbuf, | |
308 | int flag); | |
309 | asmlinkage long compat_sys_openat(unsigned int dfd, const char __user *filename, | |
310 | int flags, int mode); | |
311 | ||
1da177e4 LT |
312 | #endif /* CONFIG_COMPAT */ |
313 | #endif /* _LINUX_COMPAT_H */ |