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-rw-r--r--include/asm-x86/compat.h212
1 files changed, 212 insertions, 0 deletions
diff --git a/include/asm-x86/compat.h b/include/asm-x86/compat.h
new file mode 100644
index 000000000000..53cb96b68a62
--- /dev/null
+++ b/include/asm-x86/compat.h
@@ -0,0 +1,212 @@
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>
9
10#define COMPAT_USER_HZ 100
11
12typedef u32 compat_size_t;
13typedef s32 compat_ssize_t;
14typedef s32 compat_time_t;
15typedef s32 compat_clock_t;
16typedef s32 compat_pid_t;
17typedef u16 __compat_uid_t;
18typedef u16 __compat_gid_t;
19typedef u32 __compat_uid32_t;
20typedef u32 __compat_gid32_t;
21typedef u16 compat_mode_t;
22typedef u32 compat_ino_t;
23typedef u16 compat_dev_t;
24typedef s32 compat_off_t;
25typedef s64 compat_loff_t;
26typedef u16 compat_nlink_t;
27typedef u16 compat_ipc_pid_t;
28typedef s32 compat_daddr_t;
29typedef u32 compat_caddr_t;
30typedef __kernel_fsid_t compat_fsid_t;
31typedef s32 compat_timer_t;
32typedef s32 compat_key_t;
33
34typedef s32 compat_int_t;
35typedef s32 compat_long_t;
36typedef s64 __attribute__((aligned(4))) compat_s64;
37typedef u32 compat_uint_t;
38typedef u32 compat_ulong_t;
39typedef u64 __attribute__((aligned(4))) compat_u64;
40
41struct compat_timespec {
42 compat_time_t tv_sec;
43 s32 tv_nsec;
44};
45
46struct compat_timeval {
47 compat_time_t tv_sec;
48 s32 tv_usec;
49};
50
51struct compat_stat {
52 compat_dev_t st_dev;
53 u16 __pad1;
54 compat_ino_t st_ino;
55 compat_mode_t st_mode;
56 compat_nlink_t st_nlink;
57 __compat_uid_t st_uid;
58 __compat_gid_t st_gid;
59 compat_dev_t st_rdev;
60 u16 __pad2;
61 u32 st_size;
62 u32 st_blksize;
63 u32 st_blocks;
64 u32 st_atime;
65 u32 st_atime_nsec;
66 u32 st_mtime;
67 u32 st_mtime_nsec;
68 u32 st_ctime;
69 u32 st_ctime_nsec;
70 u32 __unused4;
71 u32 __unused5;
72};
73
74struct compat_flock {
75 short l_type;
76 short l_whence;
77 compat_off_t l_start;
78 compat_off_t l_len;
79 compat_pid_t l_pid;
80};
81
82#define F_GETLK64 12 /* using 'struct flock64' */
83#define F_SETLK64 13
84#define F_SETLKW64 14
85
86/*
87 * IA32 uses 4 byte alignment for 64 bit quantities,
88 * so we need to pack this structure.
89 */
90struct compat_flock64 {
91 short l_type;
92 short l_whence;
93 compat_loff_t l_start;
94 compat_loff_t l_len;
95 compat_pid_t l_pid;
96} __attribute__((packed));
97
98struct compat_statfs {
99 int f_type;
100 int f_bsize;
101 int f_blocks;
102 int f_bfree;
103 int f_bavail;
104 int f_files;
105 int f_ffree;
106 compat_fsid_t f_fsid;
107 int f_namelen; /* SunOS ignores this field. */
108 int f_frsize;
109 int f_spare[5];
110};
111
112#define COMPAT_RLIM_OLD_INFINITY 0x7fffffff
113#define COMPAT_RLIM_INFINITY 0xffffffff
114
115typedef u32 compat_old_sigset_t; /* at least 32 bits */
116
117#define _COMPAT_NSIG 64
118#define _COMPAT_NSIG_BPW 32
119
120typedef u32 compat_sigset_word;
121
122#define COMPAT_OFF_T_MAX 0x7fffffff
123#define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL
124
125struct compat_ipc64_perm {
126 compat_key_t key;
127 __compat_uid32_t uid;
128 __compat_gid32_t gid;
129 __compat_uid32_t cuid;
130 __compat_gid32_t cgid;
131 unsigned short mode;
132 unsigned short __pad1;
133 unsigned short seq;
134 unsigned short __pad2;
135 compat_ulong_t unused1;
136 compat_ulong_t unused2;
137};
138
139struct compat_semid64_ds {
140 struct compat_ipc64_perm sem_perm;
141 compat_time_t sem_otime;
142 compat_ulong_t __unused1;
143 compat_time_t sem_ctime;
144 compat_ulong_t __unused2;
145 compat_ulong_t sem_nsems;
146 compat_ulong_t __unused3;
147 compat_ulong_t __unused4;
148};
149
150struct compat_msqid64_ds {
151 struct compat_ipc64_perm msg_perm;
152 compat_time_t msg_stime;
153 compat_ulong_t __unused1;
154 compat_time_t msg_rtime;
155 compat_ulong_t __unused2;
156 compat_time_t msg_ctime;
157 compat_ulong_t __unused3;
158 compat_ulong_t msg_cbytes;
159 compat_ulong_t msg_qnum;
160 compat_ulong_t msg_qbytes;
161 compat_pid_t msg_lspid;
162 compat_pid_t msg_lrpid;
163 compat_ulong_t __unused4;
164 compat_ulong_t __unused5;
165};
166
167struct compat_shmid64_ds {
168 struct compat_ipc64_perm shm_perm;
169 compat_size_t shm_segsz;
170 compat_time_t shm_atime;
171 compat_ulong_t __unused1;
172 compat_time_t shm_dtime;
173 compat_ulong_t __unused2;
174 compat_time_t shm_ctime;
175 compat_ulong_t __unused3;
176 compat_pid_t shm_cpid;
177 compat_pid_t shm_lpid;
178 compat_ulong_t shm_nattch;
179 compat_ulong_t __unused4;
180 compat_ulong_t __unused5;
181};
182
183/*
184 * A pointer passed in from user mode. This should not
185 * be used for syscall parameters, just declare them
186 * as pointers because the syscall entry code will have
187 * appropriately comverted them already.
188 */
189typedef u32 compat_uptr_t;
190
191static inline void __user *compat_ptr(compat_uptr_t uptr)
192{
193 return (void __user *)(unsigned long)uptr;
194}
195
196static inline compat_uptr_t ptr_to_compat(void __user *uptr)
197{
198 return (u32)(unsigned long)uptr;
199}
200
201static __inline__ void __user *compat_alloc_user_space(long len)
202{
203 struct pt_regs *regs = task_pt_regs(current);
204 return (void __user *)regs->rsp - len;
205}
206
207static inline int is_compat_task(void)
208{
209 return current_thread_info()->status & TS_COMPAT;
210}
211
212#endif /* _ASM_X86_64_COMPAT_H */
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-26 05:22:57 -0500