1 #ifndef _ASM_X86_64_COMPAT_H
2 #define _ASM_X86_64_COMPAT_H
5 * Architecture specific compatibility types
7 #include <linux/types.h>
8 #include <linux/sched.h>
9 #include <asm/user32.h>
11 #define COMPAT_USER_HZ 100
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 u16 __compat_uid_t
;
19 typedef u16 __compat_gid_t
;
20 typedef u32 __compat_uid32_t
;
21 typedef u32 __compat_gid32_t
;
22 typedef u16 compat_mode_t
;
23 typedef u32 compat_ino_t
;
24 typedef u16 compat_dev_t
;
25 typedef s32 compat_off_t
;
26 typedef s64 compat_loff_t
;
27 typedef u16 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_timer_t
;
33 typedef s32 compat_key_t
;
35 typedef s32 compat_int_t
;
36 typedef s32 compat_long_t
;
37 typedef s64
__attribute__((aligned(4))) compat_s64
;
38 typedef u32 compat_uint_t
;
39 typedef u32 compat_ulong_t
;
40 typedef u64
__attribute__((aligned(4))) compat_u64
;
42 struct compat_timespec
{
47 struct compat_timeval
{
56 compat_mode_t st_mode
;
57 compat_nlink_t st_nlink
;
58 __compat_uid_t st_uid
;
59 __compat_gid_t st_gid
;
83 #define F_GETLK64 12 /* using 'struct flock64' */
88 * IA32 uses 4 byte alignment for 64 bit quantities,
89 * so we need to pack this structure.
91 struct compat_flock64
{
94 compat_loff_t l_start
;
97 } __attribute__((packed
));
99 struct compat_statfs
{
107 compat_fsid_t f_fsid
;
108 int f_namelen
; /* SunOS ignores this field. */
113 #define COMPAT_RLIM_OLD_INFINITY 0x7fffffff
114 #define COMPAT_RLIM_INFINITY 0xffffffff
116 typedef u32 compat_old_sigset_t
; /* at least 32 bits */
118 #define _COMPAT_NSIG 64
119 #define _COMPAT_NSIG_BPW 32
121 typedef u32 compat_sigset_word
;
123 #define COMPAT_OFF_T_MAX 0x7fffffff
124 #define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL
126 struct compat_ipc64_perm
{
128 __compat_uid32_t uid
;
129 __compat_gid32_t gid
;
130 __compat_uid32_t cuid
;
131 __compat_gid32_t cgid
;
133 unsigned short __pad1
;
135 unsigned short __pad2
;
136 compat_ulong_t unused1
;
137 compat_ulong_t unused2
;
140 struct compat_semid64_ds
{
141 struct compat_ipc64_perm sem_perm
;
142 compat_time_t sem_otime
;
143 compat_ulong_t __unused1
;
144 compat_time_t sem_ctime
;
145 compat_ulong_t __unused2
;
146 compat_ulong_t sem_nsems
;
147 compat_ulong_t __unused3
;
148 compat_ulong_t __unused4
;
151 struct compat_msqid64_ds
{
152 struct compat_ipc64_perm msg_perm
;
153 compat_time_t msg_stime
;
154 compat_ulong_t __unused1
;
155 compat_time_t msg_rtime
;
156 compat_ulong_t __unused2
;
157 compat_time_t msg_ctime
;
158 compat_ulong_t __unused3
;
159 compat_ulong_t msg_cbytes
;
160 compat_ulong_t msg_qnum
;
161 compat_ulong_t msg_qbytes
;
162 compat_pid_t msg_lspid
;
163 compat_pid_t msg_lrpid
;
164 compat_ulong_t __unused4
;
165 compat_ulong_t __unused5
;
168 struct compat_shmid64_ds
{
169 struct compat_ipc64_perm shm_perm
;
170 compat_size_t shm_segsz
;
171 compat_time_t shm_atime
;
172 compat_ulong_t __unused1
;
173 compat_time_t shm_dtime
;
174 compat_ulong_t __unused2
;
175 compat_time_t shm_ctime
;
176 compat_ulong_t __unused3
;
177 compat_pid_t shm_cpid
;
178 compat_pid_t shm_lpid
;
179 compat_ulong_t shm_nattch
;
180 compat_ulong_t __unused4
;
181 compat_ulong_t __unused5
;
185 * The type of struct elf_prstatus.pr_reg in compatible core dumps.
187 typedef struct user_regs_struct32 compat_elf_gregset_t
;
190 * A pointer passed in from user mode. This should not
191 * be used for syscall parameters, just declare them
192 * as pointers because the syscall entry code will have
193 * appropriately converted them already.
195 typedef u32 compat_uptr_t
;
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
= task_pt_regs(current
);
210 return (void __user
*)regs
->sp
- len
;
213 static inline int is_compat_task(void)
215 return current_thread_info()->status
& TS_COMPAT
;
218 #endif /* _ASM_X86_64_COMPAT_H */