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gerrit-public.fairphone.software / kernel / msm-4.19 / 8dbfc5cfdcac04d656f6f6789eb8fcdcc3d2dfda / . / include / asm-x86_64 / compat.h
blob: d0f453c5adfc6dd04edc3353ddd61750d5cc322e [file] [log] [blame]
Linus Torvalds1da177e2005-04-16 15:20:36 -0700[diff] [blame]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 u32 compat_uint_t;
37typedef u32 compat_ulong_t;
38
39struct compat_timespec {
40 compat_time_t tv_sec;
41 s32 tv_nsec;
42};
43
44struct compat_timeval {
45 compat_time_t tv_sec;
46 s32 tv_usec;
47};
48
49struct compat_stat {
50 compat_dev_t st_dev;
51 u16 __pad1;
52 compat_ino_t st_ino;
53 compat_mode_t st_mode;
54 compat_nlink_t st_nlink;
55 compat_uid_t st_uid;
56 compat_gid_t st_gid;
57 compat_dev_t st_rdev;
58 u16 __pad2;
59 u32 st_size;
60 u32 st_blksize;
61 u32 st_blocks;
62 u32 st_atime;
63 u32 st_atime_nsec;
64 u32 st_mtime;
65 u32 st_mtime_nsec;
66 u32 st_ctime;
67 u32 st_ctime_nsec;
68 u32 __unused4;
69 u32 __unused5;
70};
71
72struct compat_flock {
73 short l_type;
74 short l_whence;
75 compat_off_t l_start;
76 compat_off_t l_len;
77 compat_pid_t l_pid;
78};
79
80#define F_GETLK64 12 /* using 'struct flock64' */
81#define F_SETLK64 13
82#define F_SETLKW64 14
83
84/*
85 * IA32 uses 4 byte alignment for 64 bit quantities,
86 * so we need to pack this structure.
87 */
88struct compat_flock64 {
89 short l_type;
90 short l_whence;
91 compat_loff_t l_start;
92 compat_loff_t l_len;
93 compat_pid_t l_pid;
94} __attribute__((packed));
95
96struct compat_statfs {
97 int f_type;
98 int f_bsize;
99 int f_blocks;
100 int f_bfree;
101 int f_bavail;
102 int f_files;
103 int f_ffree;
104 compat_fsid_t f_fsid;
105 int f_namelen; /* SunOS ignores this field. */
106 int f_frsize;
107 int f_spare[5];
108};
109
110#define COMPAT_RLIM_OLD_INFINITY 0x7fffffff
111#define COMPAT_RLIM_INFINITY 0xffffffff
112
113typedef u32 compat_old_sigset_t; /* at least 32 bits */
114
115#define _COMPAT_NSIG 64
116#define _COMPAT_NSIG_BPW 32
117
118typedef u32 compat_sigset_word;
119
120#define COMPAT_OFF_T_MAX 0x7fffffff
121#define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL
122
123struct compat_ipc64_perm {
124 compat_key_t key;
125 compat_uid32_t uid;
126 compat_gid32_t gid;
127 compat_uid32_t cuid;
128 compat_gid32_t cgid;
129 unsigned short mode;
130 unsigned short __pad1;
131 unsigned short seq;
132 unsigned short __pad2;
133 compat_ulong_t unused1;
134 compat_ulong_t unused2;
135};
136
137struct compat_semid64_ds {
138 struct compat_ipc64_perm sem_perm;
139 compat_time_t sem_otime;
140 compat_ulong_t __unused1;
141 compat_time_t sem_ctime;
142 compat_ulong_t __unused2;
143 compat_ulong_t sem_nsems;
144 compat_ulong_t __unused3;
145 compat_ulong_t __unused4;
146};
147
148struct compat_msqid64_ds {
149 struct compat_ipc64_perm msg_perm;
150 compat_time_t msg_stime;
151 compat_ulong_t __unused1;
152 compat_time_t msg_rtime;
153 compat_ulong_t __unused2;
154 compat_time_t msg_ctime;
155 compat_ulong_t __unused3;
156 compat_ulong_t msg_cbytes;
157 compat_ulong_t msg_qnum;
158 compat_ulong_t msg_qbytes;
159 compat_pid_t msg_lspid;
160 compat_pid_t msg_lrpid;
161 compat_ulong_t __unused4;
162 compat_ulong_t __unused5;
163};
164
165struct compat_shmid64_ds {
166 struct compat_ipc64_perm shm_perm;
167 compat_size_t shm_segsz;
168 compat_time_t shm_atime;
169 compat_ulong_t __unused1;
170 compat_time_t shm_dtime;
171 compat_ulong_t __unused2;
172 compat_time_t shm_ctime;
173 compat_ulong_t __unused3;
174 compat_pid_t shm_cpid;
175 compat_pid_t shm_lpid;
176 compat_ulong_t shm_nattch;
177 compat_ulong_t __unused4;
178 compat_ulong_t __unused5;
179};
180
181/*
182 * A pointer passed in from user mode. This should not
183 * be used for syscall parameters, just declare them
184 * as pointers because the syscall entry code will have
185 * appropriately comverted them already.
186 */
187typedef u32 compat_uptr_t;
188
189static inline void __user *compat_ptr(compat_uptr_t uptr)
190{
191 return (void __user *)(unsigned long)uptr;
192}
193
194static inline compat_uptr_t ptr_to_compat(void __user *uptr)
195{
196 return (u32)(unsigned long)uptr;
197}
198
199static __inline__ void __user *compat_alloc_user_space(long len)
200{
201 struct pt_regs *regs = (void *)current->thread.rsp0 - sizeof(struct pt_regs);
202 return (void __user *)regs->rsp - len;
203}
204
205#endif /* _ASM_X86_64_COMPAT_H */