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
12 #define COMPAT_UTS_MACHINE "ppc\0\0"
14 #define COMPAT_UTS_MACHINE "ppcle\0\0"
17 typedef u32 compat_size_t
;
18 typedef s32 compat_ssize_t
;
19 typedef s32 compat_time_t
;
20 typedef s32 compat_clock_t
;
21 typedef s32 compat_pid_t
;
22 typedef u32 __compat_uid_t
;
23 typedef u32 __compat_gid_t
;
24 typedef u32 __compat_uid32_t
;
25 typedef u32 __compat_gid32_t
;
26 typedef u32 compat_mode_t
;
27 typedef u32 compat_ino_t
;
28 typedef u32 compat_dev_t
;
29 typedef s32 compat_off_t
;
30 typedef s64 compat_loff_t
;
31 typedef s16 compat_nlink_t
;
32 typedef u16 compat_ipc_pid_t
;
33 typedef s32 compat_daddr_t
;
34 typedef u32 compat_caddr_t
;
35 typedef __kernel_fsid_t compat_fsid_t
;
36 typedef s32 compat_key_t
;
37 typedef s32 compat_timer_t
;
39 typedef s32 compat_int_t
;
40 typedef s32 compat_long_t
;
41 typedef s64 compat_s64
;
42 typedef u32 compat_uint_t
;
43 typedef u32 compat_ulong_t
;
44 typedef u64 compat_u64
;
45 typedef u32 compat_uptr_t
;
47 struct compat_timespec
{
52 struct compat_timeval
{
60 compat_mode_t st_mode
;
61 compat_nlink_t st_nlink
;
62 __compat_uid32_t st_uid
;
63 __compat_gid32_t st_gid
;
66 compat_off_t st_blksize
;
67 compat_off_t st_blocks
;
68 compat_time_t st_atime
;
70 compat_time_t st_mtime
;
72 compat_time_t st_ctime
;
85 #define F_GETLK64 12 /* using 'struct flock64' */
89 struct compat_flock64
{
92 compat_loff_t l_start
;
97 struct compat_statfs
{
105 compat_fsid_t f_fsid
;
106 int f_namelen
; /* SunOS ignores this field. */
112 #define COMPAT_RLIM_OLD_INFINITY 0x7fffffff
113 #define COMPAT_RLIM_INFINITY 0xffffffff
115 typedef u32 compat_old_sigset_t
;
117 #define _COMPAT_NSIG 64
118 #define _COMPAT_NSIG_BPW 32
120 typedef u32 compat_sigset_word
;
122 typedef union compat_sigval
{
123 compat_int_t sival_int
;
124 compat_uptr_t sival_ptr
;
127 #define SI_PAD_SIZE32 (128/sizeof(int) - 3)
129 typedef struct compat_siginfo
{
135 int _pad
[SI_PAD_SIZE32
];
139 compat_pid_t _pid
; /* sender's pid */
140 __compat_uid_t _uid
; /* sender's uid */
143 /* POSIX.1b timers */
145 compat_timer_t _tid
; /* timer id */
146 int _overrun
; /* overrun count */
147 compat_sigval_t _sigval
; /* same as below */
148 int _sys_private
; /* not to be passed to user */
151 /* POSIX.1b signals */
153 compat_pid_t _pid
; /* sender's pid */
154 __compat_uid_t _uid
; /* sender's uid */
155 compat_sigval_t _sigval
;
160 compat_pid_t _pid
; /* which child */
161 __compat_uid_t _uid
; /* sender's uid */
162 int _status
; /* exit code */
163 compat_clock_t _utime
;
164 compat_clock_t _stime
;
167 /* SIGILL, SIGFPE, SIGSEGV, SIGBUS, SIGEMT */
169 unsigned int _addr
; /* faulting insn/memory ref. */
174 int _band
; /* POLL_IN, POLL_OUT, POLL_MSG */
180 unsigned int _call_addr
; /* calling insn */
181 int _syscall
; /* triggering system call number */
182 unsigned int _arch
; /* AUDIT_ARCH_* of syscall */
187 #define COMPAT_OFF_T_MAX 0x7fffffff
188 #define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL
191 * A pointer passed in from user mode. This should not
192 * be used for syscall parameters, just declare them
193 * as pointers because the syscall entry code will have
194 * appropriately converted them already.
197 static inline void __user
*compat_ptr(compat_uptr_t uptr
)
199 return (void __user
*)(unsigned long)uptr
;
202 static inline compat_uptr_t
ptr_to_compat(void __user
*uptr
)
204 return (u32
)(unsigned long)uptr
;
207 static inline void __user
*arch_compat_alloc_user_space(long len
)
209 struct pt_regs
*regs
= current
->thread
.regs
;
210 unsigned long usp
= regs
->gpr
[1];
213 * We can't access below the stack pointer in the 32bit ABI and
214 * can access 288 bytes in the 64bit big-endian ABI,
215 * or 512 bytes with the new ELFv2 little-endian ABI.
217 if (!is_32bit_task())
218 usp
-= USER_REDZONE_SIZE
;
220 return (void __user
*) (usp
- len
);
224 * ipc64_perm is actually 32/64bit clean but since the compat layer refers to
225 * it we may as well define it.
227 struct compat_ipc64_perm
{
236 unsigned long __unused1
; /* yes they really are 64bit pads */
237 unsigned long __unused2
;
240 struct compat_semid64_ds
{
241 struct compat_ipc64_perm sem_perm
;
242 unsigned int __unused1
;
243 compat_time_t sem_otime
;
244 unsigned int __unused2
;
245 compat_time_t sem_ctime
;
246 compat_ulong_t sem_nsems
;
247 compat_ulong_t __unused3
;
248 compat_ulong_t __unused4
;
251 struct compat_msqid64_ds
{
252 struct compat_ipc64_perm msg_perm
;
253 unsigned int __unused1
;
254 compat_time_t msg_stime
;
255 unsigned int __unused2
;
256 compat_time_t msg_rtime
;
257 unsigned int __unused3
;
258 compat_time_t msg_ctime
;
259 compat_ulong_t msg_cbytes
;
260 compat_ulong_t msg_qnum
;
261 compat_ulong_t msg_qbytes
;
262 compat_pid_t msg_lspid
;
263 compat_pid_t msg_lrpid
;
264 compat_ulong_t __unused4
;
265 compat_ulong_t __unused5
;
268 struct compat_shmid64_ds
{
269 struct compat_ipc64_perm shm_perm
;
270 unsigned int __unused1
;
271 compat_time_t shm_atime
;
272 unsigned int __unused2
;
273 compat_time_t shm_dtime
;
274 unsigned int __unused3
;
275 compat_time_t shm_ctime
;
276 unsigned int __unused4
;
277 compat_size_t shm_segsz
;
278 compat_pid_t shm_cpid
;
279 compat_pid_t shm_lpid
;
280 compat_ulong_t shm_nattch
;
281 compat_ulong_t __unused5
;
282 compat_ulong_t __unused6
;
285 static inline int is_compat_task(void)
287 return is_32bit_task();
290 #endif /* __KERNEL__ */
291 #endif /* _ASM_POWERPC_COMPAT_H */