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1/*
2 * Copyright 2010 Tilera Corporation. All Rights Reserved.
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation, version 2.
7 *
8 * This program is distributed in the hope that it will be useful, but
9 * WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
11 * NON INFRINGEMENT. See the GNU General Public License for
12 * more details.
13 */
14
15#ifndef _ASM_TILE_COMPAT_H
16#define _ASM_TILE_COMPAT_H
17
18/*
19 * Architecture specific compatibility types
20 */
21#include <linux/types.h>
22#include <linux/sched.h>
23
24#define COMPAT_USER_HZ 100
25
26/* "long" and pointer-based types are different. */
27typedef s32 compat_long_t;
28typedef u32 compat_ulong_t;
29typedef u32 compat_size_t;
30typedef s32 compat_ssize_t;
31typedef s32 compat_off_t;
32typedef s32 compat_time_t;
33typedef s32 compat_clock_t;
34typedef u32 compat_ino_t;
35typedef u32 compat_caddr_t;
36typedef u32 compat_uptr_t;
37
38/* Many types are "int" or otherwise the same. */
39typedef __kernel_pid_t compat_pid_t;
40typedef __kernel_uid_t __compat_uid_t;
41typedef __kernel_gid_t __compat_gid_t;
42typedef __kernel_uid32_t __compat_uid32_t;
43typedef __kernel_uid32_t __compat_gid32_t;
44typedef __kernel_mode_t compat_mode_t;
45typedef __kernel_dev_t compat_dev_t;
46typedef __kernel_loff_t compat_loff_t;
47typedef __kernel_nlink_t compat_nlink_t;
48typedef __kernel_ipc_pid_t compat_ipc_pid_t;
49typedef __kernel_daddr_t compat_daddr_t;
50typedef __kernel_fsid_t compat_fsid_t;
51typedef __kernel_timer_t compat_timer_t;
52typedef __kernel_key_t compat_key_t;
53typedef int compat_int_t;
54typedef s64 compat_s64;
55typedef uint compat_uint_t;
56typedef u64 compat_u64;
57
58/* We use the same register dump format in 32-bit images. */
59typedef unsigned long compat_elf_greg_t;
60#define COMPAT_ELF_NGREG (sizeof(struct pt_regs) / sizeof(compat_elf_greg_t))
61typedef compat_elf_greg_t compat_elf_gregset_t[COMPAT_ELF_NGREG];
62
63struct compat_timespec {
64 compat_time_t tv_sec;
65 s32 tv_nsec;
66};
67
68struct compat_timeval {
69 compat_time_t tv_sec;
70 s32 tv_usec;
71};
72
73struct compat_stat {
74 unsigned int st_dev;
75 unsigned int st_ino;
76 unsigned int st_mode;
77 unsigned int st_nlink;
78 unsigned int st_uid;
79 unsigned int st_gid;
80 unsigned int st_rdev;
81 unsigned int __pad1;
82 int st_size;
83 int st_blksize;
84 int __pad2;
85 int st_blocks;
86 int st_atime;
87 unsigned int st_atime_nsec;
88 int st_mtime;
89 unsigned int st_mtime_nsec;
90 int st_ctime;
91 unsigned int st_ctime_nsec;
92 unsigned int __unused[2];
93};
94
95struct compat_stat64 {
96 unsigned long st_dev;
97 unsigned long st_ino;
98 unsigned int st_mode;
99 unsigned int st_nlink;
100 unsigned int st_uid;
101 unsigned int st_gid;
102 unsigned long st_rdev;
103 long st_size;
104 unsigned int st_blksize;
105 unsigned long st_blocks __attribute__((packed));
106 unsigned int st_atime;
107 unsigned int st_atime_nsec;
108 unsigned int st_mtime;
109 unsigned int st_mtime_nsec;
110 unsigned int st_ctime;
111 unsigned int st_ctime_nsec;
112 unsigned int __unused8;
113};
114
115#define compat_statfs statfs
116
117struct compat_sysctl {
118 unsigned int name;
119 int nlen;
120 unsigned int oldval;
121 unsigned int oldlenp;
122 unsigned int newval;
123 unsigned int newlen;
124 unsigned int __unused[4];
125};
126
127
128struct compat_flock {
129 short l_type;
130 short l_whence;
131 compat_off_t l_start;
132 compat_off_t l_len;
133 compat_pid_t l_pid;
134};
135
136#define F_GETLK64 12 /* using 'struct flock64' */
137#define F_SETLK64 13
138#define F_SETLKW64 14
139
140struct compat_flock64 {
141 short l_type;
142 short l_whence;
143 compat_loff_t l_start;
144 compat_loff_t l_len;
145 compat_pid_t l_pid;
146};
147
148#define COMPAT_RLIM_INFINITY 0xffffffff
149
150#define _COMPAT_NSIG 64
151#define _COMPAT_NSIG_BPW 32
152
153typedef u32 compat_sigset_word;
154
155#define COMPAT_OFF_T_MAX 0x7fffffff
156#define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL
157
158struct compat_ipc64_perm {
159 compat_key_t key;
160 __compat_uid32_t uid;
161 __compat_gid32_t gid;
162 __compat_uid32_t cuid;
163 __compat_gid32_t cgid;
164 unsigned short mode;
165 unsigned short __pad1;
166 unsigned short seq;
167 unsigned short __pad2;
168 compat_ulong_t unused1;
169 compat_ulong_t unused2;
170};
171
172struct compat_semid64_ds {
173 struct compat_ipc64_perm sem_perm;
174 compat_time_t sem_otime;
175 compat_ulong_t __unused1;
176 compat_time_t sem_ctime;
177 compat_ulong_t __unused2;
178 compat_ulong_t sem_nsems;
179 compat_ulong_t __unused3;
180 compat_ulong_t __unused4;
181};
182
183struct compat_msqid64_ds {
184 struct compat_ipc64_perm msg_perm;
185 compat_time_t msg_stime;
186 compat_ulong_t __unused1;
187 compat_time_t msg_rtime;
188 compat_ulong_t __unused2;
189 compat_time_t msg_ctime;
190 compat_ulong_t __unused3;
191 compat_ulong_t msg_cbytes;
192 compat_ulong_t msg_qnum;
193 compat_ulong_t msg_qbytes;
194 compat_pid_t msg_lspid;
195 compat_pid_t msg_lrpid;
196 compat_ulong_t __unused4;
197 compat_ulong_t __unused5;
198};
199
200struct compat_shmid64_ds {
201 struct compat_ipc64_perm shm_perm;
202 compat_size_t shm_segsz;
203 compat_time_t shm_atime;
204 compat_ulong_t __unused1;
205 compat_time_t shm_dtime;
206 compat_ulong_t __unused2;
207 compat_time_t shm_ctime;
208 compat_ulong_t __unused3;
209 compat_pid_t shm_cpid;
210 compat_pid_t shm_lpid;
211 compat_ulong_t shm_nattch;
212 compat_ulong_t __unused4;
213 compat_ulong_t __unused5;
214};
215
216/*
217 * A pointer passed in from user mode. This should not
218 * be used for syscall parameters, just declare them
219 * as pointers because the syscall entry code will have
220 * appropriately converted them already.
221 */
222
223static inline void __user *compat_ptr(compat_uptr_t uptr)
224{
225 return (void __user *)(unsigned long)uptr;
226}
227
228static inline compat_uptr_t ptr_to_compat(void __user *uptr)
229{
230 return (u32)(unsigned long)uptr;
231}
232
233/* Sign-extend when storing a kernel pointer to a user's ptregs. */
234static inline unsigned long ptr_to_compat_reg(void __user *uptr)
235{
236 return (long)(int)(long)uptr;
237}
238
239static inline void __user *compat_alloc_user_space(long len)
240{
241 struct pt_regs *regs = task_pt_regs(current);
242 return (void __user *)regs->sp - len;
243}
244
245static inline int is_compat_task(void)
246{
247 return current_thread_info()->status & TS_COMPAT;
248}
249
250extern int compat_setup_rt_frame(int sig, struct k_sigaction *ka,
251 siginfo_t *info, sigset_t *set,
252 struct pt_regs *regs);
253
254/* Compat syscalls. */
255struct compat_sigaction;
256struct compat_siginfo;
257struct compat_sigaltstack;
258long compat_sys_execve(char __user *path, compat_uptr_t __user *argv,
259 compat_uptr_t __user *envp);
260long compat_sys_rt_sigaction(int sig, struct compat_sigaction __user *act,
261 struct compat_sigaction __user *oact,
262 size_t sigsetsize);
263long compat_sys_rt_sigqueueinfo(int pid, int sig,
264 struct compat_siginfo __user *uinfo);
265long compat_sys_rt_sigreturn(void);
266long compat_sys_sigaltstack(const struct compat_sigaltstack __user *uss_ptr,
267 struct compat_sigaltstack __user *uoss_ptr);
268long compat_sys_truncate64(char __user *filename, u32 dummy, u32 low, u32 high);
269long compat_sys_ftruncate64(unsigned int fd, u32 dummy, u32 low, u32 high);
270long compat_sys_pread64(unsigned int fd, char __user *ubuf, size_t count,
271 u32 dummy, u32 low, u32 high);
272long compat_sys_pwrite64(unsigned int fd, char __user *ubuf, size_t count,
273 u32 dummy, u32 low, u32 high);
274long compat_sys_lookup_dcookie(u32 low, u32 high, char __user *buf, size_t len);
275long compat_sys_sync_file_range2(int fd, unsigned int flags,
276 u32 offset_lo, u32 offset_hi,
277 u32 nbytes_lo, u32 nbytes_hi);
278long compat_sys_fallocate(int fd, int mode,
279 u32 offset_lo, u32 offset_hi,
280 u32 len_lo, u32 len_hi);
281long compat_sys_stat64(char __user *filename,
282 struct compat_stat64 __user *statbuf);
283long compat_sys_lstat64(char __user *filename,
284 struct compat_stat64 __user *statbuf);
285long compat_sys_fstat64(unsigned int fd, struct compat_stat64 __user *statbuf);
286long compat_sys_fstatat64(int dfd, char __user *filename,
287 struct compat_stat64 __user *statbuf, int flag);
288long compat_sys_sched_rr_get_interval(compat_pid_t pid,
289 struct compat_timespec __user *interval);
290ssize_t compat_sys_sendfile(int out_fd, int in_fd, compat_off_t __user *offset,
291 size_t count);
292
293/* Versions of compat functions that differ from generic Linux. */
294struct compat_msgbuf;
295long tile_compat_sys_msgsnd(int msqid,
296 struct compat_msgbuf __user *msgp,
297 size_t msgsz, int msgflg);
298long tile_compat_sys_msgrcv(int msqid,
299 struct compat_msgbuf __user *msgp,
300 size_t msgsz, long msgtyp, int msgflg);
301long tile_compat_sys_ptrace(compat_long_t request, compat_long_t pid,
302 compat_long_t addr, compat_long_t data);
303
304/* Tilera Linux syscalls that don't have "compat" versions. */
305#define compat_sys_raise_fpe sys_raise_fpe
306#define compat_sys_flush_cache sys_flush_cache
307
308#endif /* _ASM_TILE_COMPAT_H */
generated by cgit v1.2.2 (git 2.25.0) at 2025-04-25 15:19:46 -0400