1 #ifndef _LINUX_COMPAT_H
2 #define _LINUX_COMPAT_H
4 * These are the type definitions for the architecture specific
5 * syscall compatibility layer.
7 #include <linux/config.h>
11 #include <linux/stat.h>
12 #include <linux/param.h> /* for HZ */
13 #include <linux/sem.h>
15 #include <asm/compat.h>
16 #include <asm/siginfo.h>
18 #define compat_jiffies_to_clock_t(x) \
19 (((unsigned long)(x) * COMPAT_USER_HZ) / HZ)
21 typedef __compat_uid32_t compat_uid_t
;
22 typedef __compat_gid32_t compat_gid_t
;
26 struct compat_itimerspec
{
27 struct compat_timespec it_interval
;
28 struct compat_timespec it_value
;
31 struct compat_utimbuf
{
33 compat_time_t modtime
;
36 struct compat_itimerval
{
37 struct compat_timeval it_interval
;
38 struct compat_timeval it_value
;
42 compat_clock_t tms_utime
;
43 compat_clock_t tms_stime
;
44 compat_clock_t tms_cutime
;
45 compat_clock_t tms_cstime
;
52 compat_long_t maxerror
;
53 compat_long_t esterror
;
55 compat_long_t constant
;
56 compat_long_t precision
;
57 compat_long_t tolerance
;
58 struct compat_timeval time
;
60 compat_long_t ppsfreq
;
69 compat_int_t
:32; compat_int_t
:32; compat_int_t
:32; compat_int_t
:32;
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;
74 #define _COMPAT_NSIG_WORDS (_COMPAT_NSIG / _COMPAT_NSIG_BPW)
77 compat_sigset_word sig
[_COMPAT_NSIG_WORDS
];
80 extern int cp_compat_stat(struct kstat
*, struct compat_stat __user
*);
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
*);
85 compat_uptr_t iov_base
;
86 compat_size_t iov_len
;
89 struct compat_rlimit
{
90 compat_ulong_t rlim_cur
;
91 compat_ulong_t rlim_max
;
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
;
113 extern int put_compat_rusage(const struct rusage
*, struct compat_rusage __user
*);
115 struct compat_siginfo
;
117 extern asmlinkage
long compat_sys_waitid(int, compat_pid_t
,
118 struct compat_siginfo __user
*, int,
119 struct compat_rusage __user
*);
121 struct compat_dirent
{
128 typedef union compat_sigval
{
129 compat_int_t sival_int
;
130 compat_uptr_t sival_ptr
;
133 #define COMPAT_SIGEV_PAD_SIZE ((SIGEV_MAX_SIZE/sizeof(int)) - 3)
135 typedef struct compat_sigevent
{
136 compat_sigval_t sigev_value
;
137 compat_int_t sigev_signo
;
138 compat_int_t sigev_notify
;
140 compat_int_t _pad
[COMPAT_SIGEV_PAD_SIZE
];
144 compat_uptr_t _function
;
145 compat_uptr_t _attribute
;
150 struct compat_robust_list
{
154 struct compat_robust_list_head
{
155 struct compat_robust_list list
;
156 compat_long_t futex_offset
;
157 compat_uptr_t list_op_pending
;
160 extern void compat_exit_robust_list(struct task_struct
*curr
);
163 compat_sys_set_robust_list(struct compat_robust_list_head __user
*head
,
166 compat_sys_get_robust_list(int pid
, compat_uptr_t
*head_ptr
,
167 compat_size_t __user
*len_ptr
);
169 long compat_sys_semctl(int first
, int second
, int third
, void __user
*uptr
);
170 long compat_sys_msgsnd(int first
, int second
, int third
, void __user
*uptr
);
171 long compat_sys_msgrcv(int first
, int second
, int msgtyp
, int third
,
172 int version
, void __user
*uptr
);
173 long compat_sys_msgctl(int first
, int second
, void __user
*uptr
);
174 long compat_sys_shmat(int first
, int second
, compat_uptr_t third
, int version
,
176 long compat_sys_shmctl(int first
, int second
, void __user
*uptr
);
177 long compat_sys_semtimedop(int semid
, struct sembuf __user
*tsems
,
178 unsigned nsems
, const struct compat_timespec __user
*timeout
);
179 asmlinkage
long compat_sys_keyctl(u32 option
,
180 u32 arg2
, u32 arg3
, u32 arg4
, u32 arg5
);
182 asmlinkage ssize_t
compat_sys_readv(unsigned long fd
,
183 const struct compat_iovec __user
*vec
, unsigned long vlen
);
184 asmlinkage ssize_t
compat_sys_writev(unsigned long fd
,
185 const struct compat_iovec __user
*vec
, unsigned long vlen
);
187 int compat_do_execve(char * filename
, compat_uptr_t __user
*argv
,
188 compat_uptr_t __user
*envp
, struct pt_regs
* regs
);
190 asmlinkage
long compat_sys_select(int n
, compat_ulong_t __user
*inp
,
191 compat_ulong_t __user
*outp
, compat_ulong_t __user
*exp
,
192 struct compat_timeval __user
*tvp
);
194 #define BITS_PER_COMPAT_LONG (8*sizeof(compat_long_t))
196 #define BITS_TO_COMPAT_LONGS(bits) \
197 (((bits)+BITS_PER_COMPAT_LONG-1)/BITS_PER_COMPAT_LONG)
199 long compat_get_bitmap(unsigned long *mask
, compat_ulong_t __user
*umask
,
200 unsigned long bitmap_size
);
201 long compat_put_bitmap(compat_ulong_t __user
*umask
, unsigned long *mask
,
202 unsigned long bitmap_size
);
203 int copy_siginfo_from_user32(siginfo_t
*to
, struct compat_siginfo __user
*from
);
204 int copy_siginfo_to_user32(struct compat_siginfo __user
*to
, siginfo_t
*from
);
205 int get_compat_sigevent(struct sigevent
*event
,
206 const struct compat_sigevent __user
*u_event
);
208 static inline int compat_timeval_compare(struct compat_timeval
*lhs
,
209 struct compat_timeval
*rhs
)
211 if (lhs
->tv_sec
< rhs
->tv_sec
)
213 if (lhs
->tv_sec
> rhs
->tv_sec
)
215 return lhs
->tv_usec
- rhs
->tv_usec
;
218 static inline int compat_timespec_compare(struct compat_timespec
*lhs
,
219 struct compat_timespec
*rhs
)
221 if (lhs
->tv_sec
< rhs
->tv_sec
)
223 if (lhs
->tv_sec
> rhs
->tv_sec
)
225 return lhs
->tv_nsec
- rhs
->tv_nsec
;
228 asmlinkage
long compat_sys_adjtimex(struct compat_timex __user
*utp
);
230 #endif /* CONFIG_COMPAT */
231 #endif /* _LINUX_COMPAT_H */