1 #ifndef _ASM_POWERPC_COMPAT_H
2 #define _ASM_POWERPC_COMPAT_H
5 * Architecture specific compatibility types
7 #include <linux/types.h>
8 #include <linux/sched.h>
10 #define COMPAT_USER_HZ 100
11 #define COMPAT_UTS_MACHINE "ppc\0\0"
13 typedef u32 compat_size_t;
14 typedef s32 compat_ssize_t;
15 typedef s32 compat_time_t;
16 typedef s32 compat_clock_t;
17 typedef s32 compat_pid_t;
18 typedef u32 __compat_uid_t;
19 typedef u32 __compat_gid_t;
20 typedef u32 __compat_uid32_t;
21 typedef u32 __compat_gid32_t;
22 typedef u32 compat_mode_t;
23 typedef u32 compat_ino_t;
24 typedef u32 compat_dev_t;
25 typedef s32 compat_off_t;
26 typedef s64 compat_loff_t;
27 typedef s16 compat_nlink_t;
28 typedef u16 compat_ipc_pid_t;
29 typedef s32 compat_daddr_t;
30 typedef u32 compat_caddr_t;
31 typedef __kernel_fsid_t compat_fsid_t;
32 typedef s32 compat_key_t;
33 typedef s32 compat_timer_t;
35 typedef s32 compat_int_t;
36 typedef s32 compat_long_t;
37 typedef s64 compat_s64;
38 typedef u32 compat_uint_t;
39 typedef u32 compat_ulong_t;
40 typedef u64 compat_u64;
41 typedef u32 compat_uptr_t;
43 struct compat_timespec {
48 struct compat_timeval {
56 compat_mode_t st_mode;
57 compat_nlink_t st_nlink;
58 __compat_uid32_t st_uid;
59 __compat_gid32_t st_gid;
62 compat_off_t st_blksize;
63 compat_off_t st_blocks;
64 compat_time_t st_atime;
66 compat_time_t st_mtime;
68 compat_time_t st_ctime;
81 #define F_GETLK64 12 /* using 'struct flock64' */
85 struct compat_flock64 {
88 compat_loff_t l_start;
93 struct compat_statfs {
101 compat_fsid_t f_fsid;
102 int f_namelen; /* SunOS ignores this field. */
108 #define COMPAT_RLIM_OLD_INFINITY 0x7fffffff
109 #define COMPAT_RLIM_INFINITY 0xffffffff
111 typedef u32 compat_old_sigset_t;
113 #define _COMPAT_NSIG 64
114 #define _COMPAT_NSIG_BPW 32
116 typedef u32 compat_sigset_word;
118 typedef union compat_sigval {
119 compat_int_t sival_int;
120 compat_uptr_t sival_ptr;
123 #define SI_PAD_SIZE32 (128/sizeof(int) - 3)
125 typedef struct compat_siginfo {
131 int _pad[SI_PAD_SIZE32];
135 compat_pid_t _pid; /* sender's pid */
136 __compat_uid_t _uid; /* sender's uid */
139 /* POSIX.1b timers */
141 compat_timer_t _tid; /* timer id */
142 int _overrun; /* overrun count */
143 compat_sigval_t _sigval; /* same as below */
144 int _sys_private; /* not to be passed to user */
147 /* POSIX.1b signals */
149 compat_pid_t _pid; /* sender's pid */
150 __compat_uid_t _uid; /* sender's uid */
151 compat_sigval_t _sigval;
156 compat_pid_t _pid; /* which child */
157 __compat_uid_t _uid; /* sender's uid */
158 int _status; /* exit code */
159 compat_clock_t _utime;
160 compat_clock_t _stime;
163 /* SIGILL, SIGFPE, SIGSEGV, SIGBUS, SIGEMT */
165 unsigned int _addr; /* faulting insn/memory ref. */
170 int _band; /* POLL_IN, POLL_OUT, POLL_MSG */
176 #define COMPAT_OFF_T_MAX 0x7fffffff
177 #define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL
180 * A pointer passed in from user mode. This should not
181 * be used for syscall parameters, just declare them
182 * as pointers because the syscall entry code will have
183 * appropriately converted them already.
186 static inline void __user *compat_ptr(compat_uptr_t uptr)
188 return (void __user *)(unsigned long)uptr;
191 static inline compat_uptr_t ptr_to_compat(void __user *uptr)
193 return (u32)(unsigned long)uptr;
196 static inline void __user *arch_compat_alloc_user_space(long len)
198 struct pt_regs *regs = current->thread.regs;
199 unsigned long usp = regs->gpr[1];
202 * We can't access below the stack pointer in the 32bit ABI and
203 * can access 288 bytes in the 64bit ABI
205 if (!is_32bit_task())
208 return (void __user *) (usp - len);
212 * ipc64_perm is actually 32/64bit clean but since the compat layer refers to
213 * it we may as well define it.
215 struct compat_ipc64_perm {
224 unsigned long __unused1; /* yes they really are 64bit pads */
225 unsigned long __unused2;
228 struct compat_semid64_ds {
229 struct compat_ipc64_perm sem_perm;
230 unsigned int __unused1;
231 compat_time_t sem_otime;
232 unsigned int __unused2;
233 compat_time_t sem_ctime;
234 compat_ulong_t sem_nsems;
235 compat_ulong_t __unused3;
236 compat_ulong_t __unused4;
239 struct compat_msqid64_ds {
240 struct compat_ipc64_perm msg_perm;
241 unsigned int __unused1;
242 compat_time_t msg_stime;
243 unsigned int __unused2;
244 compat_time_t msg_rtime;
245 unsigned int __unused3;
246 compat_time_t msg_ctime;
247 compat_ulong_t msg_cbytes;
248 compat_ulong_t msg_qnum;
249 compat_ulong_t msg_qbytes;
250 compat_pid_t msg_lspid;
251 compat_pid_t msg_lrpid;
252 compat_ulong_t __unused4;
253 compat_ulong_t __unused5;
256 struct compat_shmid64_ds {
257 struct compat_ipc64_perm shm_perm;
258 unsigned int __unused1;
259 compat_time_t shm_atime;
260 unsigned int __unused2;
261 compat_time_t shm_dtime;
262 unsigned int __unused3;
263 compat_time_t shm_ctime;
264 unsigned int __unused4;
265 compat_size_t shm_segsz;
266 compat_pid_t shm_cpid;
267 compat_pid_t shm_lpid;
268 compat_ulong_t shm_nattch;
269 compat_ulong_t __unused5;
270 compat_ulong_t __unused6;
273 static inline int is_compat_task(void)
275 return is_32bit_task();
278 #endif /* __KERNEL__ */
279 #endif /* _ASM_POWERPC_COMPAT_H */