Linux kernel mirror (for testing)
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linux
1#ifndef _ASM_POWERPC_COMPAT_H
2#define _ASM_POWERPC_COMPAT_H
3#ifdef __KERNEL__
4/*
5 * Architecture specific compatibility types
6 */
7#include <linux/types.h>
8#include <linux/sched.h>
9
10#define COMPAT_USER_HZ 100
11#define COMPAT_UTS_MACHINE "ppc\0\0"
12
13typedef u32 compat_size_t;
14typedef s32 compat_ssize_t;
15typedef s32 compat_time_t;
16typedef s32 compat_clock_t;
17typedef s32 compat_pid_t;
18typedef u32 __compat_uid_t;
19typedef u32 __compat_gid_t;
20typedef u32 __compat_uid32_t;
21typedef u32 __compat_gid32_t;
22typedef u32 compat_mode_t;
23typedef u32 compat_ino_t;
24typedef u32 compat_dev_t;
25typedef s32 compat_off_t;
26typedef s64 compat_loff_t;
27typedef s16 compat_nlink_t;
28typedef u16 compat_ipc_pid_t;
29typedef s32 compat_daddr_t;
30typedef u32 compat_caddr_t;
31typedef __kernel_fsid_t compat_fsid_t;
32typedef s32 compat_key_t;
33typedef s32 compat_timer_t;
34
35typedef s32 compat_int_t;
36typedef s32 compat_long_t;
37typedef s64 compat_s64;
38typedef u32 compat_uint_t;
39typedef u32 compat_ulong_t;
40typedef u64 compat_u64;
41
42struct compat_timespec {
43 compat_time_t tv_sec;
44 s32 tv_nsec;
45};
46
47struct compat_timeval {
48 compat_time_t tv_sec;
49 s32 tv_usec;
50};
51
52struct compat_stat {
53 compat_dev_t st_dev;
54 compat_ino_t st_ino;
55 compat_mode_t st_mode;
56 compat_nlink_t st_nlink;
57 __compat_uid32_t st_uid;
58 __compat_gid32_t st_gid;
59 compat_dev_t st_rdev;
60 compat_off_t st_size;
61 compat_off_t st_blksize;
62 compat_off_t st_blocks;
63 compat_time_t st_atime;
64 u32 st_atime_nsec;
65 compat_time_t st_mtime;
66 u32 st_mtime_nsec;
67 compat_time_t st_ctime;
68 u32 st_ctime_nsec;
69 u32 __unused4[2];
70};
71
72struct compat_flock {
73 short l_type;
74 short l_whence;
75 compat_off_t l_start;
76 compat_off_t l_len;
77 compat_pid_t l_pid;
78};
79
80#define F_GETLK64 12 /* using 'struct flock64' */
81#define F_SETLK64 13
82#define F_SETLKW64 14
83
84struct compat_flock64 {
85 short l_type;
86 short l_whence;
87 compat_loff_t l_start;
88 compat_loff_t l_len;
89 compat_pid_t l_pid;
90};
91
92struct compat_statfs {
93 int f_type;
94 int f_bsize;
95 int f_blocks;
96 int f_bfree;
97 int f_bavail;
98 int f_files;
99 int f_ffree;
100 compat_fsid_t f_fsid;
101 int f_namelen; /* SunOS ignores this field. */
102 int f_frsize;
103 int f_flags;
104 int f_spare[4];
105};
106
107#define COMPAT_RLIM_OLD_INFINITY 0x7fffffff
108#define COMPAT_RLIM_INFINITY 0xffffffff
109
110typedef u32 compat_old_sigset_t;
111
112#define _COMPAT_NSIG 64
113#define _COMPAT_NSIG_BPW 32
114
115typedef u32 compat_sigset_word;
116
117#define COMPAT_OFF_T_MAX 0x7fffffff
118#define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL
119
120/*
121 * A pointer passed in from user mode. This should not
122 * be used for syscall parameters, just declare them
123 * as pointers because the syscall entry code will have
124 * appropriately converted them already.
125 */
126typedef u32 compat_uptr_t;
127
128static inline void __user *compat_ptr(compat_uptr_t uptr)
129{
130 return (void __user *)(unsigned long)uptr;
131}
132
133static inline compat_uptr_t ptr_to_compat(void __user *uptr)
134{
135 return (u32)(unsigned long)uptr;
136}
137
138static inline void __user *arch_compat_alloc_user_space(long len)
139{
140 struct pt_regs *regs = current->thread.regs;
141 unsigned long usp = regs->gpr[1];
142
143 /*
144 * We can't access below the stack pointer in the 32bit ABI and
145 * can access 288 bytes in the 64bit ABI
146 */
147 if (!is_32bit_task())
148 usp -= 288;
149
150 return (void __user *) (usp - len);
151}
152
153/*
154 * ipc64_perm is actually 32/64bit clean but since the compat layer refers to
155 * it we may as well define it.
156 */
157struct compat_ipc64_perm {
158 compat_key_t key;
159 __compat_uid_t uid;
160 __compat_gid_t gid;
161 __compat_uid_t cuid;
162 __compat_gid_t cgid;
163 compat_mode_t mode;
164 unsigned int seq;
165 unsigned int __pad2;
166 unsigned long __unused1; /* yes they really are 64bit pads */
167 unsigned long __unused2;
168};
169
170struct compat_semid64_ds {
171 struct compat_ipc64_perm sem_perm;
172 unsigned int __unused1;
173 compat_time_t sem_otime;
174 unsigned int __unused2;
175 compat_time_t sem_ctime;
176 compat_ulong_t sem_nsems;
177 compat_ulong_t __unused3;
178 compat_ulong_t __unused4;
179};
180
181struct compat_msqid64_ds {
182 struct compat_ipc64_perm msg_perm;
183 unsigned int __unused1;
184 compat_time_t msg_stime;
185 unsigned int __unused2;
186 compat_time_t msg_rtime;
187 unsigned int __unused3;
188 compat_time_t msg_ctime;
189 compat_ulong_t msg_cbytes;
190 compat_ulong_t msg_qnum;
191 compat_ulong_t msg_qbytes;
192 compat_pid_t msg_lspid;
193 compat_pid_t msg_lrpid;
194 compat_ulong_t __unused4;
195 compat_ulong_t __unused5;
196};
197
198struct compat_shmid64_ds {
199 struct compat_ipc64_perm shm_perm;
200 unsigned int __unused1;
201 compat_time_t shm_atime;
202 unsigned int __unused2;
203 compat_time_t shm_dtime;
204 unsigned int __unused3;
205 compat_time_t shm_ctime;
206 unsigned int __unused4;
207 compat_size_t shm_segsz;
208 compat_pid_t shm_cpid;
209 compat_pid_t shm_lpid;
210 compat_ulong_t shm_nattch;
211 compat_ulong_t __unused5;
212 compat_ulong_t __unused6;
213};
214
215static inline int is_compat_task(void)
216{
217 return is_32bit_task();
218}
219
220#endif /* __KERNEL__ */
221#endif /* _ASM_POWERPC_COMPAT_H */