xref: /freebsd/sys/arm64/linux/linux.h (revision 85f87cf491bec6f90948a85b10f5523ea24db9e3)
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 <compat/linux/linux.h>
35 #include <arm64/linux/linux_syscall.h>
36 
37 #define	LINUX_DTRACE	linuxulator
38 
39 #define	PTRIN(v)	(void *)(v)
40 #define	PTROUT(v)	(uintptr_t)(v)
41 
42 #define	CP(src,dst,fld) do { (dst).fld = (src).fld; } while (0)
43 #define	CP2(src,dst,sfld,dfld) do { (dst).dfld = (src).sfld; } while (0)
44 #define	PTRIN_CP(src,dst,fld) \
45 	do { (dst).fld = PTRIN((src).fld); } while (0)
46 
47 /* Provide a separate set of types for the Linux types */
48 typedef int32_t		l_int;
49 typedef int64_t		l_long;
50 typedef int16_t		l_short;
51 typedef uint32_t	l_uint;
52 typedef uint64_t	l_ulong;
53 typedef uint16_t	l_ushort;
54 
55 typedef l_ulong		l_uintptr_t;
56 typedef l_long		l_clock_t;
57 typedef l_int		l_daddr_t;
58 typedef l_ulong		l_dev_t;
59 typedef l_uint		l_gid_t;
60 typedef l_ushort	l_gid16_t;	/* XXX */
61 typedef l_uint		l_uid_t;
62 typedef l_ushort	l_uid16_t;	/* XXX */
63 typedef l_ulong		l_ino_t;
64 typedef l_int		l_key_t;
65 typedef l_long		l_loff_t;
66 typedef l_uint		l_mode_t;
67 typedef l_long		l_off_t;
68 typedef l_int		l_pid_t;
69 typedef l_ulong		l_size_t;
70 typedef l_long		l_suseconds_t;
71 typedef l_long		l_time_t;
72 typedef l_int		l_timer_t;	/* XXX */
73 typedef l_ulong		l_fd_mask;
74 
75 typedef struct {
76 	l_int		val[2];
77 } l_fsid_t;
78 
79 typedef struct {
80 	l_time_t	tv_sec;
81 	l_suseconds_t	tv_usec;
82 } l_timeval;
83 
84 #define	l_fd_set	fd_set
85 
86 /* Miscellaneous */
87 #define	LINUX_AT_COUNT		20
88 
89 struct l___sysctl_args
90 {
91 	l_uintptr_t	name;
92 	l_int		nlen;
93 	l_uintptr_t	oldval;
94 	l_uintptr_t	oldlenp;
95 	l_uintptr_t	newval;
96 	l_uintptr_t	newlen;
97 	l_ulong		__spare[4];
98 };
99 
100 /* Resource limits */
101 #define	LINUX_RLIMIT_CPU	0
102 #define	LINUX_RLIMIT_FSIZE	1
103 #define	LINUX_RLIMIT_DATA	2
104 #define	LINUX_RLIMIT_STACK	3
105 #define	LINUX_RLIMIT_CORE	4
106 #define	LINUX_RLIMIT_RSS	5
107 #define	LINUX_RLIMIT_NPROC	6
108 #define	LINUX_RLIMIT_NOFILE	7
109 #define	LINUX_RLIMIT_MEMLOCK	8
110 #define	LINUX_RLIMIT_AS		9	/* Address space limit */
111 
112 #define	LINUX_RLIM_NLIMITS	10
113 
114 struct l_rlimit {
115 	l_ulong		rlim_cur;
116 	l_ulong		rlim_max;
117 };
118 
119 /* stat family of syscalls */
120 struct l_timespec {
121 	l_time_t	tv_sec;
122 	l_long		tv_nsec;
123 };
124 
125 struct l_newstat {
126 	l_dev_t		st_dev;
127 	l_ino_t		st_ino;
128 	l_uint		st_mode;
129 	l_uint		st_nlink;
130 
131 	l_uid_t		st_uid;
132 	l_gid_t		st_gid;
133 
134 	l_dev_t		st_rdev;
135 	l_ulong		__st_pad1;
136 	l_off_t		st_size;
137 	l_int		st_blksize;
138 	l_int		__st_pad2;
139 	l_long		st_blocks;
140 
141 	struct l_timespec	st_atim;
142 	struct l_timespec	st_mtim;
143 	struct l_timespec	st_ctim;
144 	l_uint		__unused1;
145 	l_uint		__unused2;
146 };
147 
148 /* sigaction flags */
149 #define	LINUX_SA_NOCLDSTOP	0x00000001
150 #define	LINUX_SA_NOCLDWAIT	0x00000002
151 #define	LINUX_SA_SIGINFO	0x00000004
152 #define	LINUX_SA_RESTORER	0x04000000
153 #define	LINUX_SA_ONSTACK	0x08000000
154 #define	LINUX_SA_RESTART	0x10000000
155 #define	LINUX_SA_INTERRUPT	0x20000000	/* XXX */
156 #define	LINUX_SA_NOMASK		0x40000000	/* SA_NODEFER */
157 #define	LINUX_SA_ONESHOT	0x80000000	/* SA_RESETHAND */
158 
159 /* sigprocmask actions */
160 #define	LINUX_SIG_BLOCK		0
161 #define	LINUX_SIG_UNBLOCK	1
162 #define	LINUX_SIG_SETMASK	2
163 
164 /* sigaltstack */
165 #define	LINUX_MINSIGSTKSZ	2048		/* XXX */
166 
167 typedef void	(*l_handler_t)(l_int);
168 
169 typedef struct {
170 	l_handler_t	lsa_handler;
171 	l_sigset_t	lsa_mask;
172 	l_ulong		lsa_flags;
173 	l_uintptr_t	lsa_restorer;
174 } l_sigaction_t;				/* XXX */
175 
176 typedef struct {
177 	l_uintptr_t	ss_sp;
178 	l_int		ss_flags;
179 	l_size_t	ss_size;
180 } l_stack_t;
181 
182 #define	LINUX_SI_PREAMBLE_SIZE	(4 * sizeof(int))
183 #define	LINUX_SI_MAX_SIZE	128
184 #define	LINUX_SI_PAD_SIZE	((LINUX_SI_MAX_SIZE - \
185 				    LINUX_SI_PREAMBLE_SIZE) / sizeof(l_int))
186 typedef union l_sigval {
187 	l_int		sival_int;
188 	l_uintptr_t	sival_ptr;
189 } l_sigval_t;
190 
191 typedef struct l_siginfo {
192 	l_int		lsi_signo;
193 	l_int		lsi_errno;
194 	l_int		lsi_code;
195 	union {
196 		l_int	_pad[LINUX_SI_PAD_SIZE];
197 
198 		struct {
199 			l_pid_t		_pid;
200 			l_uid_t		_uid;
201 		} _kill;
202 
203 		struct {
204 			l_timer_t	_tid;
205 			l_int		_overrun;
206 			char		_pad[sizeof(l_uid_t) - sizeof(int)];
207 			union l_sigval	_sigval;
208 			l_uint		_sys_private;
209 		} _timer;
210 
211 		struct {
212 			l_pid_t		_pid;		/* sender's pid */
213 			l_uid_t		_uid;		/* sender's uid */
214 			union l_sigval	_sigval;
215 		} _rt;
216 
217 		struct {
218 			l_pid_t		_pid;		/* which child */
219 			l_uid_t		_uid;		/* sender's uid */
220 			l_int		_status;	/* exit code */
221 			l_clock_t	_utime;
222 			l_clock_t	_stime;
223 		} _sigchld;
224 
225 		struct {
226 			l_uintptr_t	_addr;	/* Faulting insn/memory ref. */
227 		} _sigfault;
228 
229 		struct {
230 			l_long		_band;	/* POLL_IN,POLL_OUT,POLL_MSG */
231 			l_int		_fd;
232 		} _sigpoll;
233 	} _sifields;
234 } l_siginfo_t;
235 
236 #define	lsi_pid		_sifields._kill._pid
237 #define	lsi_uid		_sifields._kill._uid
238 #define	lsi_tid		_sifields._timer._tid
239 #define	lsi_overrun	_sifields._timer._overrun
240 #define	lsi_sys_private	_sifields._timer._sys_private
241 #define	lsi_status	_sifields._sigchld._status
242 #define	lsi_utime	_sifields._sigchld._utime
243 #define	lsi_stime	_sifields._sigchld._stime
244 #define	lsi_value	_sifields._rt._sigval
245 #define	lsi_int		_sifields._rt._sigval.sival_int
246 #define	lsi_ptr		_sifields._rt._sigval.sival_ptr
247 #define	lsi_addr	_sifields._sigfault._addr
248 #define	lsi_band	_sifields._sigpoll._band
249 #define	lsi_fd		_sifields._sigpoll._fd
250 
251 union l_semun {
252 	l_int		val;
253 	l_uintptr_t	buf;
254 	l_uintptr_t	array;
255 	l_uintptr_t	__buf;
256 	l_uintptr_t	__pad;
257 };
258 
259 struct l_ifmap {
260 	l_ulong		mem_start;
261 	l_ulong		mem_end;
262 	l_ushort	base_addr;
263 	u_char		irq;
264 	u_char		dma;
265 	u_char		port;
266 } __packed;
267 
268 struct l_ifreq {
269 	union {
270 		char	ifrn_name[LINUX_IFNAMSIZ];
271 	} ifr_ifrn;
272 
273 	union {
274 		struct l_sockaddr	ifru_addr;
275 		struct l_sockaddr	ifru_dstaddr;
276 		struct l_sockaddr	ifru_broadaddr;
277 		struct l_sockaddr	ifru_netmask;
278 		struct l_sockaddr	ifru_hwaddr;
279 		l_short		ifru_flags[1];
280 		l_int		ifru_ivalue;
281 		l_int		ifru_mtu;
282 		struct l_ifmap	ifru_map;
283 		char		ifru_slave[LINUX_IFNAMSIZ];
284 		l_uintptr_t	ifru_data;
285 	} ifr_ifru;
286 } __packed;
287 
288 #define	ifr_name	ifr_ifrn.ifrn_name	/* Interface name */
289 #define	ifr_hwaddr	ifr_ifru.ifru_hwaddr	/* MAC address */
290 #define	ifr_ifindex	ifr_ifru.ifru_ivalue	/* Interface index */
291 
292 #define	linux_copyout_rusage(r, u)	copyout(r, u, sizeof(*r))
293 
294 /* robust futexes */
295 struct linux_robust_list {
296 	l_uintptr_t			next;
297 };
298 
299 struct linux_robust_list_head {
300 	struct linux_robust_list	list;
301 	l_long				futex_offset;
302 	l_uintptr_t			pending_list;
303 };
304 
305 #endif /* _ARM64_LINUX_H_ */
306