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-rw-r--r--include/asm-powerpc/compat.h205
1 files changed, 205 insertions, 0 deletions
diff --git a/include/asm-powerpc/compat.h b/include/asm-powerpc/compat.h
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1#ifndef _ASM_POWERPC_COMPAT_H
2#define _ASM_POWERPC_COMPAT_H
3/*
4 * Architecture specific compatibility types
5 */
6#include <linux/types.h>
7#include <linux/sched.h>
8
9#define COMPAT_USER_HZ 100
10
11typedef u32 compat_size_t;
12typedef s32 compat_ssize_t;
13typedef s32 compat_time_t;
14typedef s32 compat_clock_t;
15typedef s32 compat_pid_t;
16typedef u32 __compat_uid_t;
17typedef u32 __compat_gid_t;
18typedef u32 __compat_uid32_t;
19typedef u32 __compat_gid32_t;
20typedef u32 compat_mode_t;
21typedef u32 compat_ino_t;
22typedef u32 compat_dev_t;
23typedef s32 compat_off_t;
24typedef s64 compat_loff_t;
25typedef s16 compat_nlink_t;
26typedef u16 compat_ipc_pid_t;
27typedef s32 compat_daddr_t;
28typedef u32 compat_caddr_t;
29typedef __kernel_fsid_t compat_fsid_t;
30typedef s32 compat_key_t;
31typedef s32 compat_timer_t;
32
33typedef s32 compat_int_t;
34typedef s32 compat_long_t;
35typedef u32 compat_uint_t;
36typedef u32 compat_ulong_t;
37
38struct compat_timespec {
39 compat_time_t tv_sec;
40 s32 tv_nsec;
41};
42
43struct compat_timeval {
44 compat_time_t tv_sec;
45 s32 tv_usec;
46};
47
48struct compat_stat {
49 compat_dev_t st_dev;
50 compat_ino_t st_ino;
51 compat_mode_t st_mode;
52 compat_nlink_t st_nlink;
53 __compat_uid32_t st_uid;
54 __compat_gid32_t st_gid;
55 compat_dev_t st_rdev;
56 compat_off_t st_size;
57 compat_off_t st_blksize;
58 compat_off_t st_blocks;
59 compat_time_t st_atime;
60 u32 st_atime_nsec;
61 compat_time_t st_mtime;
62 u32 st_mtime_nsec;
63 compat_time_t st_ctime;
64 u32 st_ctime_nsec;
65 u32 __unused4[2];
66};
67
68struct compat_flock {
69 short l_type;
70 short l_whence;
71 compat_off_t l_start;
72 compat_off_t l_len;
73 compat_pid_t l_pid;
74};
75
76#define F_GETLK64 12 /* using 'struct flock64' */
77#define F_SETLK64 13
78#define F_SETLKW64 14
79
80struct compat_flock64 {
81 short l_type;
82 short l_whence;
83 compat_loff_t l_start;
84 compat_loff_t l_len;
85 compat_pid_t l_pid;
86};
87
88struct compat_statfs {
89 int f_type;
90 int f_bsize;
91 int f_blocks;
92 int f_bfree;
93 int f_bavail;
94 int f_files;
95 int f_ffree;
96 compat_fsid_t f_fsid;
97 int f_namelen; /* SunOS ignores this field. */
98 int f_frsize;
99 int f_spare[5];
100};
101
102#define COMPAT_RLIM_OLD_INFINITY 0x7fffffff
103#define COMPAT_RLIM_INFINITY 0xffffffff
104
105typedef u32 compat_old_sigset_t;
106
107#define _COMPAT_NSIG 64
108#define _COMPAT_NSIG_BPW 32
109
110typedef u32 compat_sigset_word;
111
112#define COMPAT_OFF_T_MAX 0x7fffffff
113#define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL
114
115/*
116 * A pointer passed in from user mode. This should not
117 * be used for syscall parameters, just declare them
118 * as pointers because the syscall entry code will have
119 * appropriately comverted them already.
120 */
121typedef u32 compat_uptr_t;
122
123static inline void __user *compat_ptr(compat_uptr_t uptr)
124{
125 return (void __user *)(unsigned long)uptr;
126}
127
128static inline void __user *compat_alloc_user_space(long len)
129{
130 struct pt_regs *regs = current->thread.regs;
131 unsigned long usp = regs->gpr[1];
132
133 /*
134 * We cant access below the stack pointer in the 32bit ABI and
135 * can access 288 bytes in the 64bit ABI
136 */
137 if (!(test_thread_flag(TIF_32BIT)))
138 usp -= 288;
139
140 return (void __user *) (usp - len);
141}
142
143/*
144 * ipc64_perm is actually 32/64bit clean but since the compat layer refers to
145 * it we may as well define it.
146 */
147struct compat_ipc64_perm {
148 compat_key_t key;
149 __compat_uid_t uid;
150 __compat_gid_t gid;
151 __compat_uid_t cuid;
152 __compat_gid_t cgid;
153 compat_mode_t mode;
154 unsigned int seq;
155 unsigned int __pad2;
156 unsigned long __unused1; /* yes they really are 64bit pads */
157 unsigned long __unused2;
158};
159
160struct compat_semid64_ds {
161 struct compat_ipc64_perm sem_perm;
162 unsigned int __unused1;
163 compat_time_t sem_otime;
164 unsigned int __unused2;
165 compat_time_t sem_ctime;
166 compat_ulong_t sem_nsems;
167 compat_ulong_t __unused3;
168 compat_ulong_t __unused4;
169};
170
171struct compat_msqid64_ds {
172 struct compat_ipc64_perm msg_perm;
173 unsigned int __unused1;
174 compat_time_t msg_stime;
175 unsigned int __unused2;
176 compat_time_t msg_rtime;
177 unsigned int __unused3;
178 compat_time_t msg_ctime;
179 compat_ulong_t msg_cbytes;
180 compat_ulong_t msg_qnum;
181 compat_ulong_t msg_qbytes;
182 compat_pid_t msg_lspid;
183 compat_pid_t msg_lrpid;
184 compat_ulong_t __unused4;
185 compat_ulong_t __unused5;
186};
187
188struct compat_shmid64_ds {
189 struct compat_ipc64_perm shm_perm;
190 unsigned int __unused1;
191 compat_time_t shm_atime;
192 unsigned int __unused2;
193 compat_time_t shm_dtime;
194 unsigned int __unused3;
195 compat_time_t shm_ctime;
196 unsigned int __unused4;
197 compat_size_t shm_segsz;
198 compat_pid_t shm_cpid;
199 compat_pid_t shm_lpid;
200 compat_ulong_t shm_nattch;
201 compat_ulong_t __unused5;
202 compat_ulong_t __unused6;
203};
204
205#endif /* _ASM_POWERPC_COMPAT_H */
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