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 big-endian ABI,
204 * or 512 bytes with the new ELFv2 little-endian ABI.
206 if (!is_32bit_task())
207 usp
-= USER_REDZONE_SIZE
;
209 return (void __user
*) (usp
- len
);
213 * ipc64_perm is actually 32/64bit clean but since the compat layer refers to
214 * it we may as well define it.
216 struct compat_ipc64_perm
{
225 unsigned long __unused1
; /* yes they really are 64bit pads */
226 unsigned long __unused2
;
229 struct compat_semid64_ds
{
230 struct compat_ipc64_perm sem_perm
;
231 unsigned int __unused1
;
232 compat_time_t sem_otime
;
233 unsigned int __unused2
;
234 compat_time_t sem_ctime
;
235 compat_ulong_t sem_nsems
;
236 compat_ulong_t __unused3
;
237 compat_ulong_t __unused4
;
240 struct compat_msqid64_ds
{
241 struct compat_ipc64_perm msg_perm
;
242 unsigned int __unused1
;
243 compat_time_t msg_stime
;
244 unsigned int __unused2
;
245 compat_time_t msg_rtime
;
246 unsigned int __unused3
;
247 compat_time_t msg_ctime
;
248 compat_ulong_t msg_cbytes
;
249 compat_ulong_t msg_qnum
;
250 compat_ulong_t msg_qbytes
;
251 compat_pid_t msg_lspid
;
252 compat_pid_t msg_lrpid
;
253 compat_ulong_t __unused4
;
254 compat_ulong_t __unused5
;
257 struct compat_shmid64_ds
{
258 struct compat_ipc64_perm shm_perm
;
259 unsigned int __unused1
;
260 compat_time_t shm_atime
;
261 unsigned int __unused2
;
262 compat_time_t shm_dtime
;
263 unsigned int __unused3
;
264 compat_time_t shm_ctime
;
265 unsigned int __unused4
;
266 compat_size_t shm_segsz
;
267 compat_pid_t shm_cpid
;
268 compat_pid_t shm_lpid
;
269 compat_ulong_t shm_nattch
;
270 compat_ulong_t __unused5
;
271 compat_ulong_t __unused6
;
274 static inline int is_compat_task(void)
276 return is_32bit_task();
279 #endif /* __KERNEL__ */
280 #endif /* _ASM_POWERPC_COMPAT_H */