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1da177e4 LT |
1 | #ifndef _ASM_X86_64_COMPAT_H |
2 | #define _ASM_X86_64_COMPAT_H | |
3 | ||
4 | /* | |
5 | * Architecture specific compatibility types | |
6 | */ | |
7 | #include <linux/types.h> | |
8 | #include <linux/sched.h> | |
95d1b8f9 | 9 | #include <asm/user32.h> |
1da177e4 LT |
10 | |
11 | #define COMPAT_USER_HZ 100 | |
12 | ||
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; | |
202e5979 SR |
18 | typedef u16 __compat_uid_t; |
19 | typedef u16 __compat_gid_t; | |
20 | typedef u32 __compat_uid32_t; | |
21 | typedef u32 __compat_gid32_t; | |
1da177e4 LT |
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; | |
34 | ||
35 | typedef s32 compat_int_t; | |
36 | typedef s32 compat_long_t; | |
4b777587 | 37 | typedef s64 __attribute__((aligned(4))) compat_s64; |
1da177e4 LT |
38 | typedef u32 compat_uint_t; |
39 | typedef u32 compat_ulong_t; | |
4b777587 | 40 | typedef u64 __attribute__((aligned(4))) compat_u64; |
1da177e4 LT |
41 | |
42 | struct compat_timespec { | |
43 | compat_time_t tv_sec; | |
44 | s32 tv_nsec; | |
45 | }; | |
46 | ||
47 | struct compat_timeval { | |
48 | compat_time_t tv_sec; | |
49 | s32 tv_usec; | |
50 | }; | |
51 | ||
52 | struct compat_stat { | |
53 | compat_dev_t st_dev; | |
54 | u16 __pad1; | |
55 | compat_ino_t st_ino; | |
56 | compat_mode_t st_mode; | |
57 | compat_nlink_t st_nlink; | |
202e5979 SR |
58 | __compat_uid_t st_uid; |
59 | __compat_gid_t st_gid; | |
1da177e4 LT |
60 | compat_dev_t st_rdev; |
61 | u16 __pad2; | |
62 | u32 st_size; | |
63 | u32 st_blksize; | |
64 | u32 st_blocks; | |
65 | u32 st_atime; | |
66 | u32 st_atime_nsec; | |
67 | u32 st_mtime; | |
68 | u32 st_mtime_nsec; | |
69 | u32 st_ctime; | |
70 | u32 st_ctime_nsec; | |
71 | u32 __unused4; | |
72 | u32 __unused5; | |
73 | }; | |
74 | ||
75 | struct compat_flock { | |
76 | short l_type; | |
77 | short l_whence; | |
78 | compat_off_t l_start; | |
79 | compat_off_t l_len; | |
80 | compat_pid_t l_pid; | |
81 | }; | |
82 | ||
83 | #define F_GETLK64 12 /* using 'struct flock64' */ | |
84 | #define F_SETLK64 13 | |
85 | #define F_SETLKW64 14 | |
86 | ||
87 | /* | |
88 | * IA32 uses 4 byte alignment for 64 bit quantities, | |
89 | * so we need to pack this structure. | |
90 | */ | |
91 | struct compat_flock64 { | |
92 | short l_type; | |
93 | short l_whence; | |
94 | compat_loff_t l_start; | |
95 | compat_loff_t l_len; | |
96 | compat_pid_t l_pid; | |
97 | } __attribute__((packed)); | |
98 | ||
99 | struct compat_statfs { | |
100 | int f_type; | |
101 | int f_bsize; | |
102 | int f_blocks; | |
103 | int f_bfree; | |
104 | int f_bavail; | |
105 | int f_files; | |
106 | int f_ffree; | |
107 | compat_fsid_t f_fsid; | |
108 | int f_namelen; /* SunOS ignores this field. */ | |
109 | int f_frsize; | |
110 | int f_spare[5]; | |
111 | }; | |
112 | ||
113 | #define COMPAT_RLIM_OLD_INFINITY 0x7fffffff | |
114 | #define COMPAT_RLIM_INFINITY 0xffffffff | |
115 | ||
116 | typedef u32 compat_old_sigset_t; /* at least 32 bits */ | |
117 | ||
118 | #define _COMPAT_NSIG 64 | |
119 | #define _COMPAT_NSIG_BPW 32 | |
120 | ||
121 | typedef u32 compat_sigset_word; | |
122 | ||
123 | #define COMPAT_OFF_T_MAX 0x7fffffff | |
124 | #define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL | |
125 | ||
126 | struct compat_ipc64_perm { | |
127 | compat_key_t key; | |
202e5979 SR |
128 | __compat_uid32_t uid; |
129 | __compat_gid32_t gid; | |
130 | __compat_uid32_t cuid; | |
131 | __compat_gid32_t cgid; | |
1da177e4 LT |
132 | unsigned short mode; |
133 | unsigned short __pad1; | |
134 | unsigned short seq; | |
135 | unsigned short __pad2; | |
136 | compat_ulong_t unused1; | |
137 | compat_ulong_t unused2; | |
138 | }; | |
139 | ||
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; | |
149 | }; | |
150 | ||
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; | |
166 | }; | |
167 | ||
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; | |
182 | }; | |
183 | ||
95d1b8f9 RM |
184 | /* |
185 | * The type of struct elf_prstatus.pr_reg in compatible core dumps. | |
186 | */ | |
187 | typedef struct user_regs_struct32 compat_elf_gregset_t; | |
188 | ||
1da177e4 LT |
189 | /* |
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 | |
8b3de0df | 193 | * appropriately converted them already. |
1da177e4 LT |
194 | */ |
195 | typedef u32 compat_uptr_t; | |
196 | ||
197 | static inline void __user *compat_ptr(compat_uptr_t uptr) | |
198 | { | |
199 | return (void __user *)(unsigned long)uptr; | |
200 | } | |
201 | ||
202 | static inline compat_uptr_t ptr_to_compat(void __user *uptr) | |
203 | { | |
204 | return (u32)(unsigned long)uptr; | |
205 | } | |
206 | ||
c96a6d41 | 207 | static inline void __user *compat_alloc_user_space(long len) |
1da177e4 | 208 | { |
bb049232 | 209 | struct pt_regs *regs = task_pt_regs(current); |
65ea5b03 | 210 | return (void __user *)regs->sp - len; |
1da177e4 LT |
211 | } |
212 | ||
bf2fcc6f AK |
213 | static inline int is_compat_task(void) |
214 | { | |
215 | return current_thread_info()->status & TS_COMPAT; | |
216 | } | |
217 | ||
1da177e4 | 218 | #endif /* _ASM_X86_64_COMPAT_H */ |