xref: /freebsd/sys/arm64/linux/linux.h (revision 9e5787d2284e187abb5b654d924394a65772e004)
1 /*-
2  * Copyright (c) 1994-1996 Søren Schmidt
3  * Copyright (c) 2013 Dmitry Chagin
4  * Copyright (c) 2018 Turing Robotic Industries Inc.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25  * SUCH DAMAGE.
26  */
27 
28 /*
29  * $FreeBSD$
30  */
31 #ifndef _ARM64_LINUX_H_
32 #define	_ARM64_LINUX_H_
33 
34 #include <sys/abi_compat.h>
35 
36 #include <compat/linux/linux.h>
37 #include <arm64/linux/linux_syscall.h>
38 
39 #define	LINUX_DTRACE	linuxulator
40 
41 /* Provide a separate set of types for the Linux types */
42 typedef int32_t		l_int;
43 typedef int64_t		l_long;
44 typedef int16_t		l_short;
45 typedef uint32_t	l_uint;
46 typedef uint64_t	l_ulong;
47 typedef uint16_t	l_ushort;
48 
49 typedef l_ulong		l_uintptr_t;
50 typedef l_long		l_clock_t;
51 typedef l_int		l_daddr_t;
52 typedef l_ulong		l_dev_t;
53 typedef l_uint		l_gid_t;
54 typedef l_ushort	l_gid16_t;	/* XXX */
55 typedef l_uint		l_uid_t;
56 typedef l_ushort	l_uid16_t;	/* XXX */
57 typedef l_ulong		l_ino_t;
58 typedef l_int		l_key_t;
59 typedef l_long		l_loff_t;
60 typedef l_uint		l_mode_t;
61 typedef l_long		l_off_t;
62 typedef l_int		l_pid_t;
63 typedef l_ulong		l_size_t;
64 typedef l_long		l_suseconds_t;
65 typedef l_long		l_time_t;
66 typedef l_int		l_timer_t;	/* XXX */
67 typedef l_int		l_mqd_t;
68 typedef l_ulong		l_fd_mask;
69 
70 typedef struct {
71 	l_int		val[2];
72 } l_fsid_t;
73 
74 typedef struct {
75 	l_time_t	tv_sec;
76 	l_suseconds_t	tv_usec;
77 } l_timeval;
78 
79 #define	l_fd_set	fd_set
80 
81 /* Miscellaneous */
82 #define	LINUX_AT_COUNT		20
83 
84 struct l___sysctl_args
85 {
86 	l_uintptr_t	name;
87 	l_int		nlen;
88 	l_uintptr_t	oldval;
89 	l_uintptr_t	oldlenp;
90 	l_uintptr_t	newval;
91 	l_uintptr_t	newlen;
92 	l_ulong		__spare[4];
93 };
94 
95 /* Resource limits */
96 #define	LINUX_RLIMIT_CPU	0
97 #define	LINUX_RLIMIT_FSIZE	1
98 #define	LINUX_RLIMIT_DATA	2
99 #define	LINUX_RLIMIT_STACK	3
100 #define	LINUX_RLIMIT_CORE	4
101 #define	LINUX_RLIMIT_RSS	5
102 #define	LINUX_RLIMIT_NPROC	6
103 #define	LINUX_RLIMIT_NOFILE	7
104 #define	LINUX_RLIMIT_MEMLOCK	8
105 #define	LINUX_RLIMIT_AS		9	/* Address space limit */
106 
107 #define	LINUX_RLIM_NLIMITS	10
108 
109 struct l_rlimit {
110 	l_ulong		rlim_cur;
111 	l_ulong		rlim_max;
112 };
113 
114 /* stat family of syscalls */
115 struct l_timespec {
116 	l_time_t	tv_sec;
117 	l_long		tv_nsec;
118 };
119 
120 struct l_newstat {
121 	l_dev_t		st_dev;
122 	l_ino_t		st_ino;
123 	l_uint		st_mode;
124 	l_uint		st_nlink;
125 
126 	l_uid_t		st_uid;
127 	l_gid_t		st_gid;
128 
129 	l_dev_t		st_rdev;
130 	l_ulong		__st_pad1;
131 	l_off_t		st_size;
132 	l_int		st_blksize;
133 	l_int		__st_pad2;
134 	l_long		st_blocks;
135 
136 	struct l_timespec	st_atim;
137 	struct l_timespec	st_mtim;
138 	struct l_timespec	st_ctim;
139 	l_uint		__unused1;
140 	l_uint		__unused2;
141 };
142 
143 /* sigaction flags */
144 #define	LINUX_SA_NOCLDSTOP	0x00000001
145 #define	LINUX_SA_NOCLDWAIT	0x00000002
146 #define	LINUX_SA_SIGINFO	0x00000004
147 #define	LINUX_SA_RESTORER	0x04000000
148 #define	LINUX_SA_ONSTACK	0x08000000
149 #define	LINUX_SA_RESTART	0x10000000
150 #define	LINUX_SA_INTERRUPT	0x20000000	/* XXX */
151 #define	LINUX_SA_NOMASK		0x40000000	/* SA_NODEFER */
152 #define	LINUX_SA_ONESHOT	0x80000000	/* SA_RESETHAND */
153 
154 /* sigprocmask actions */
155 #define	LINUX_SIG_BLOCK		0
156 #define	LINUX_SIG_UNBLOCK	1
157 #define	LINUX_SIG_SETMASK	2
158 
159 /* sigaltstack */
160 #define	LINUX_MINSIGSTKSZ	2048		/* XXX */
161 
162 typedef void	(*l_handler_t)(l_int);
163 
164 typedef struct {
165 	l_handler_t	lsa_handler;
166 	l_sigset_t	lsa_mask;
167 	l_ulong		lsa_flags;
168 	l_uintptr_t	lsa_restorer;
169 } l_sigaction_t;				/* XXX */
170 
171 typedef struct {
172 	l_uintptr_t	ss_sp;
173 	l_int		ss_flags;
174 	l_size_t	ss_size;
175 } l_stack_t;
176 
177 #define	LINUX_SI_PREAMBLE_SIZE	(4 * sizeof(int))
178 #define	LINUX_SI_MAX_SIZE	128
179 #define	LINUX_SI_PAD_SIZE	((LINUX_SI_MAX_SIZE - \
180 				    LINUX_SI_PREAMBLE_SIZE) / sizeof(l_int))
181 typedef union l_sigval {
182 	l_int		sival_int;
183 	l_uintptr_t	sival_ptr;
184 } l_sigval_t;
185 
186 typedef struct l_siginfo {
187 	l_int		lsi_signo;
188 	l_int		lsi_errno;
189 	l_int		lsi_code;
190 	union {
191 		l_int	_pad[LINUX_SI_PAD_SIZE];
192 
193 		struct {
194 			l_pid_t		_pid;
195 			l_uid_t		_uid;
196 		} _kill;
197 
198 		struct {
199 			l_timer_t	_tid;
200 			l_int		_overrun;
201 			char		_pad[sizeof(l_uid_t) - sizeof(int)];
202 			union l_sigval	_sigval;
203 			l_uint		_sys_private;
204 		} _timer;
205 
206 		struct {
207 			l_pid_t		_pid;		/* sender's pid */
208 			l_uid_t		_uid;		/* sender's uid */
209 			union l_sigval	_sigval;
210 		} _rt;
211 
212 		struct {
213 			l_pid_t		_pid;		/* which child */
214 			l_uid_t		_uid;		/* sender's uid */
215 			l_int		_status;	/* exit code */
216 			l_clock_t	_utime;
217 			l_clock_t	_stime;
218 		} _sigchld;
219 
220 		struct {
221 			l_uintptr_t	_addr;	/* Faulting insn/memory ref. */
222 		} _sigfault;
223 
224 		struct {
225 			l_long		_band;	/* POLL_IN,POLL_OUT,POLL_MSG */
226 			l_int		_fd;
227 		} _sigpoll;
228 	} _sifields;
229 } l_siginfo_t;
230 
231 #define	lsi_pid		_sifields._kill._pid
232 #define	lsi_uid		_sifields._kill._uid
233 #define	lsi_tid		_sifields._timer._tid
234 #define	lsi_overrun	_sifields._timer._overrun
235 #define	lsi_sys_private	_sifields._timer._sys_private
236 #define	lsi_status	_sifields._sigchld._status
237 #define	lsi_utime	_sifields._sigchld._utime
238 #define	lsi_stime	_sifields._sigchld._stime
239 #define	lsi_value	_sifields._rt._sigval
240 #define	lsi_int		_sifields._rt._sigval.sival_int
241 #define	lsi_ptr		_sifields._rt._sigval.sival_ptr
242 #define	lsi_addr	_sifields._sigfault._addr
243 #define	lsi_band	_sifields._sigpoll._band
244 #define	lsi_fd		_sifields._sigpoll._fd
245 
246 union l_semun {
247 	l_int		val;
248 	l_uintptr_t	buf;
249 	l_uintptr_t	array;
250 	l_uintptr_t	__buf;
251 	l_uintptr_t	__pad;
252 };
253 
254 struct l_ifmap {
255 	l_ulong		mem_start;
256 	l_ulong		mem_end;
257 	l_ushort	base_addr;
258 	u_char		irq;
259 	u_char		dma;
260 	u_char		port;
261 } __packed;
262 
263 struct l_ifreq {
264 	union {
265 		char	ifrn_name[LINUX_IFNAMSIZ];
266 	} ifr_ifrn;
267 
268 	union {
269 		struct l_sockaddr	ifru_addr;
270 		struct l_sockaddr	ifru_dstaddr;
271 		struct l_sockaddr	ifru_broadaddr;
272 		struct l_sockaddr	ifru_netmask;
273 		struct l_sockaddr	ifru_hwaddr;
274 		l_short		ifru_flags[1];
275 		l_int		ifru_ivalue;
276 		l_int		ifru_mtu;
277 		struct l_ifmap	ifru_map;
278 		char		ifru_slave[LINUX_IFNAMSIZ];
279 		l_uintptr_t	ifru_data;
280 	} ifr_ifru;
281 } __packed;
282 
283 #define	ifr_name	ifr_ifrn.ifrn_name	/* Interface name */
284 #define	ifr_hwaddr	ifr_ifru.ifru_hwaddr	/* MAC address */
285 #define	ifr_ifindex	ifr_ifru.ifru_ivalue	/* Interface index */
286 
287 #define	linux_copyout_rusage(r, u)	copyout(r, u, sizeof(*r))
288 
289 /* robust futexes */
290 struct linux_robust_list {
291 	l_uintptr_t			next;
292 };
293 
294 struct linux_robust_list_head {
295 	struct linux_robust_list	list;
296 	l_long				futex_offset;
297 	l_uintptr_t			pending_list;
298 };
299 
300 #endif /* _ARM64_LINUX_H_ */
301