This source file includes following definitions.
- compat_ptr
- ptr_to_compat
- arch_compat_alloc_user_space
- is_compat_task
1
2 #ifndef _ASM_POWERPC_COMPAT_H
3 #define _ASM_POWERPC_COMPAT_H
4 #ifdef __KERNEL__
5
6
7
8 #include <linux/types.h>
9 #include <linux/sched.h>
10
11 #include <asm-generic/compat.h>
12
13 #define COMPAT_USER_HZ 100
14 #ifdef __BIG_ENDIAN__
15 #define COMPAT_UTS_MACHINE "ppc\0\0"
16 #else
17 #define COMPAT_UTS_MACHINE "ppcle\0\0"
18 #endif
19
20 typedef u32 __compat_uid_t;
21 typedef u32 __compat_gid_t;
22 typedef u32 __compat_uid32_t;
23 typedef u32 __compat_gid32_t;
24 typedef u32 compat_mode_t;
25 typedef u32 compat_dev_t;
26 typedef s16 compat_nlink_t;
27 typedef u16 compat_ipc_pid_t;
28 typedef u32 compat_caddr_t;
29 typedef __kernel_fsid_t compat_fsid_t;
30 typedef s64 compat_s64;
31 typedef u64 compat_u64;
32
33 struct compat_stat {
34 compat_dev_t st_dev;
35 compat_ino_t st_ino;
36 compat_mode_t st_mode;
37 compat_nlink_t st_nlink;
38 __compat_uid32_t st_uid;
39 __compat_gid32_t st_gid;
40 compat_dev_t st_rdev;
41 compat_off_t st_size;
42 compat_off_t st_blksize;
43 compat_off_t st_blocks;
44 old_time32_t st_atime;
45 u32 st_atime_nsec;
46 old_time32_t st_mtime;
47 u32 st_mtime_nsec;
48 old_time32_t st_ctime;
49 u32 st_ctime_nsec;
50 u32 __unused4[2];
51 };
52
53 struct compat_flock {
54 short l_type;
55 short l_whence;
56 compat_off_t l_start;
57 compat_off_t l_len;
58 compat_pid_t l_pid;
59 };
60
61 #define F_GETLK64 12
62 #define F_SETLK64 13
63 #define F_SETLKW64 14
64
65 struct compat_flock64 {
66 short l_type;
67 short l_whence;
68 compat_loff_t l_start;
69 compat_loff_t l_len;
70 compat_pid_t l_pid;
71 };
72
73 struct compat_statfs {
74 int f_type;
75 int f_bsize;
76 int f_blocks;
77 int f_bfree;
78 int f_bavail;
79 int f_files;
80 int f_ffree;
81 compat_fsid_t f_fsid;
82 int f_namelen;
83 int f_frsize;
84 int f_flags;
85 int f_spare[4];
86 };
87
88 #define COMPAT_RLIM_INFINITY 0xffffffff
89
90 typedef u32 compat_old_sigset_t;
91
92 #define _COMPAT_NSIG 64
93 #define _COMPAT_NSIG_BPW 32
94
95 typedef u32 compat_sigset_word;
96
97 #define COMPAT_OFF_T_MAX 0x7fffffff
98
99
100
101
102
103
104
105
106 static inline void __user *compat_ptr(compat_uptr_t uptr)
107 {
108 return (void __user *)(unsigned long)uptr;
109 }
110
111 static inline compat_uptr_t ptr_to_compat(void __user *uptr)
112 {
113 return (u32)(unsigned long)uptr;
114 }
115
116 static inline void __user *arch_compat_alloc_user_space(long len)
117 {
118 struct pt_regs *regs = current->thread.regs;
119 unsigned long usp = regs->gpr[1];
120
121
122
123
124
125
126 if (!is_32bit_task())
127 usp -= USER_REDZONE_SIZE;
128
129 return (void __user *) (usp - len);
130 }
131
132
133
134
135
136 struct compat_ipc64_perm {
137 compat_key_t key;
138 __compat_uid_t uid;
139 __compat_gid_t gid;
140 __compat_uid_t cuid;
141 __compat_gid_t cgid;
142 compat_mode_t mode;
143 unsigned int seq;
144 unsigned int __pad2;
145 unsigned long __unused1;
146 unsigned long __unused2;
147 };
148
149 struct compat_semid64_ds {
150 struct compat_ipc64_perm sem_perm;
151 unsigned int sem_otime_high;
152 unsigned int sem_otime;
153 unsigned int sem_ctime_high;
154 unsigned int sem_ctime;
155 compat_ulong_t sem_nsems;
156 compat_ulong_t __unused3;
157 compat_ulong_t __unused4;
158 };
159
160 struct compat_msqid64_ds {
161 struct compat_ipc64_perm msg_perm;
162 unsigned int msg_stime_high;
163 unsigned int msg_stime;
164 unsigned int msg_rtime_high;
165 unsigned int msg_rtime;
166 unsigned int msg_ctime_high;
167 unsigned int msg_ctime;
168 compat_ulong_t msg_cbytes;
169 compat_ulong_t msg_qnum;
170 compat_ulong_t msg_qbytes;
171 compat_pid_t msg_lspid;
172 compat_pid_t msg_lrpid;
173 compat_ulong_t __unused4;
174 compat_ulong_t __unused5;
175 };
176
177 struct compat_shmid64_ds {
178 struct compat_ipc64_perm shm_perm;
179 unsigned int shm_atime_high;
180 unsigned int shm_atime;
181 unsigned int shm_dtime_high;
182 unsigned int shm_dtime;
183 unsigned int shm_ctime_high;
184 unsigned int shm_ctime;
185 unsigned int __unused4;
186 compat_size_t shm_segsz;
187 compat_pid_t shm_cpid;
188 compat_pid_t shm_lpid;
189 compat_ulong_t shm_nattch;
190 compat_ulong_t __unused5;
191 compat_ulong_t __unused6;
192 };
193
194 static inline int is_compat_task(void)
195 {
196 return is_32bit_task();
197 }
198
199 #endif
200 #endif