xref: /freebsd/sys/arm64/linux/linux.h (revision 0957b409)
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 /* Debugging support */
38 #define DEBUG
39 extern u_char linux_debug_map[];
40 #define	ldebug(name)	isclr(linux_debug_map, LINUX_SYS_linux_ ## name)
41 #define	ARGS(nm, fmt)	"linux(%ld/%ld): "#nm"("fmt")\n",			\
42 			(long)td->td_proc->p_pid, (long)td->td_tid
43 #define	LMSG(fmt)	"linux(%ld/%ld): "fmt"\n",				\
44 			(long)td->td_proc->p_pid, (long)td->td_tid
45 #define	LINUX_DTRACE	linuxulator
46 
47 #define	PTRIN(v)	(void *)(v)
48 #define	PTROUT(v)	(uintptr_t)(v)
49 
50 #define	CP(src,dst,fld) do { (dst).fld = (src).fld; } while (0)
51 #define	CP2(src,dst,sfld,dfld) do { (dst).dfld = (src).sfld; } while (0)
52 #define	PTRIN_CP(src,dst,fld) \
53 	do { (dst).fld = PTRIN((src).fld); } while (0)
54 
55 /* Provide a separate set of types for the Linux types */
56 typedef int32_t		l_int;
57 typedef int64_t		l_long;
58 typedef int16_t		l_short;
59 typedef uint32_t	l_uint;
60 typedef uint64_t	l_ulong;
61 typedef uint16_t	l_ushort;
62 
63 typedef l_ulong		l_uintptr_t;
64 typedef l_long		l_clock_t;
65 typedef l_int		l_daddr_t;
66 typedef l_ulong		l_dev_t;
67 typedef l_uint		l_gid_t;
68 typedef l_ushort	l_gid16_t;	/* XXX */
69 typedef l_uint		l_uid_t;
70 typedef l_ushort	l_uid16_t;	/* XXX */
71 typedef l_ulong		l_ino_t;
72 typedef l_int		l_key_t;
73 typedef l_long		l_loff_t;
74 typedef l_uint		l_mode_t;
75 typedef l_long		l_off_t;
76 typedef l_int		l_pid_t;
77 typedef l_ulong		l_size_t;
78 typedef l_long		l_suseconds_t;
79 typedef l_long		l_time_t;
80 typedef l_int		l_timer_t;	/* XXX */
81 typedef l_ulong		l_fd_mask;
82 
83 typedef struct {
84 	l_int		val[2];
85 } l_fsid_t;
86 
87 typedef struct {
88 	l_time_t	tv_sec;
89 	l_suseconds_t	tv_usec;
90 } l_timeval;
91 
92 #define	l_fd_set	fd_set
93 
94 /* Miscellaneous */
95 #define	LINUX_AT_COUNT		20
96 
97 struct l___sysctl_args
98 {
99 	l_uintptr_t	name;
100 	l_int		nlen;
101 	l_uintptr_t	oldval;
102 	l_uintptr_t	oldlenp;
103 	l_uintptr_t	newval;
104 	l_uintptr_t	newlen;
105 	l_ulong		__spare[4];
106 };
107 
108 /* Resource limits */
109 #define	LINUX_RLIMIT_CPU	0
110 #define	LINUX_RLIMIT_FSIZE	1
111 #define	LINUX_RLIMIT_DATA	2
112 #define	LINUX_RLIMIT_STACK	3
113 #define	LINUX_RLIMIT_CORE	4
114 #define	LINUX_RLIMIT_RSS	5
115 #define	LINUX_RLIMIT_NPROC	6
116 #define	LINUX_RLIMIT_NOFILE	7
117 #define	LINUX_RLIMIT_MEMLOCK	8
118 #define	LINUX_RLIMIT_AS		9	/* Address space limit */
119 
120 #define	LINUX_RLIM_NLIMITS	10
121 
122 struct l_rlimit {
123 	l_ulong		rlim_cur;
124 	l_ulong		rlim_max;
125 };
126 
127 /* stat family of syscalls */
128 struct l_timespec {
129 	l_time_t	tv_sec;
130 	l_long		tv_nsec;
131 };
132 
133 struct l_newstat {
134 	l_dev_t		st_dev;
135 	l_ino_t		st_ino;
136 	l_uint		st_mode;
137 	l_uint		st_nlink;
138 
139 	l_uid_t		st_uid;
140 	l_gid_t		st_gid;
141 
142 	l_dev_t		st_rdev;
143 	l_ulong		__st_pad1;
144 	l_off_t		st_size;
145 	l_int		st_blksize;
146 	l_int		__st_pad2;
147 	l_long		st_blocks;
148 
149 	struct l_timespec	st_atim;
150 	struct l_timespec	st_mtim;
151 	struct l_timespec	st_ctim;
152 	l_uint		__unused1;
153 	l_uint		__unused2;
154 };
155 
156 /* sigaction flags */
157 #define	LINUX_SA_NOCLDSTOP	0x00000001
158 #define	LINUX_SA_NOCLDWAIT	0x00000002
159 #define	LINUX_SA_SIGINFO	0x00000004
160 #define	LINUX_SA_RESTORER	0x04000000
161 #define	LINUX_SA_ONSTACK	0x08000000
162 #define	LINUX_SA_RESTART	0x10000000
163 #define	LINUX_SA_INTERRUPT	0x20000000	/* XXX */
164 #define	LINUX_SA_NOMASK		0x40000000	/* SA_NODEFER */
165 #define	LINUX_SA_ONESHOT	0x80000000	/* SA_RESETHAND */
166 
167 /* sigprocmask actions */
168 #define	LINUX_SIG_BLOCK		0
169 #define	LINUX_SIG_UNBLOCK	1
170 #define	LINUX_SIG_SETMASK	2
171 
172 /* sigaltstack */
173 #define	LINUX_MINSIGSTKSZ	2048		/* XXX */
174 
175 typedef void	(*l_handler_t)(l_int);
176 
177 typedef struct {
178 	l_handler_t	lsa_handler;
179 	l_sigset_t	lsa_mask;
180 	l_ulong		lsa_flags;
181 	l_uintptr_t	lsa_restorer;
182 } l_sigaction_t;				/* XXX */
183 
184 typedef struct {
185 	l_uintptr_t	ss_sp;
186 	l_int		ss_flags;
187 	l_size_t	ss_size;
188 } l_stack_t;
189 
190 #define	LINUX_SI_PREAMBLE_SIZE	(4 * sizeof(int))
191 #define	LINUX_SI_MAX_SIZE	128
192 #define	LINUX_SI_PAD_SIZE	((LINUX_SI_MAX_SIZE - \
193 				    LINUX_SI_PREAMBLE_SIZE) / sizeof(l_int))
194 typedef union l_sigval {
195 	l_int		sival_int;
196 	l_uintptr_t	sival_ptr;
197 } l_sigval_t;
198 
199 typedef struct l_siginfo {
200 	l_int		lsi_signo;
201 	l_int		lsi_errno;
202 	l_int		lsi_code;
203 	union {
204 		l_int	_pad[LINUX_SI_PAD_SIZE];
205 
206 		struct {
207 			l_pid_t		_pid;
208 			l_uid_t		_uid;
209 		} _kill;
210 
211 		struct {
212 			l_timer_t	_tid;
213 			l_int		_overrun;
214 			char		_pad[sizeof(l_uid_t) - sizeof(int)];
215 			union l_sigval	_sigval;
216 			l_uint		_sys_private;
217 		} _timer;
218 
219 		struct {
220 			l_pid_t		_pid;		/* sender's pid */
221 			l_uid_t		_uid;		/* sender's uid */
222 			union l_sigval	_sigval;
223 		} _rt;
224 
225 		struct {
226 			l_pid_t		_pid;		/* which child */
227 			l_uid_t		_uid;		/* sender's uid */
228 			l_int		_status;	/* exit code */
229 			l_clock_t	_utime;
230 			l_clock_t	_stime;
231 		} _sigchld;
232 
233 		struct {
234 			l_uintptr_t	_addr;	/* Faulting insn/memory ref. */
235 		} _sigfault;
236 
237 		struct {
238 			l_long		_band;	/* POLL_IN,POLL_OUT,POLL_MSG */
239 			l_int		_fd;
240 		} _sigpoll;
241 	} _sifields;
242 } l_siginfo_t;
243 
244 #define	lsi_pid		_sifields._kill._pid
245 #define	lsi_uid		_sifields._kill._uid
246 #define	lsi_tid		_sifields._timer._tid
247 #define	lsi_overrun	_sifields._timer._overrun
248 #define	lsi_sys_private	_sifields._timer._sys_private
249 #define	lsi_status	_sifields._sigchld._status
250 #define	lsi_utime	_sifields._sigchld._utime
251 #define	lsi_stime	_sifields._sigchld._stime
252 #define	lsi_value	_sifields._rt._sigval
253 #define	lsi_int		_sifields._rt._sigval.sival_int
254 #define	lsi_ptr		_sifields._rt._sigval.sival_ptr
255 #define	lsi_addr	_sifields._sigfault._addr
256 #define	lsi_band	_sifields._sigpoll._band
257 #define	lsi_fd		_sifields._sigpoll._fd
258 
259 union l_semun {
260 	l_int		val;
261 	l_uintptr_t	buf;
262 	l_uintptr_t	array;
263 	l_uintptr_t	__buf;
264 	l_uintptr_t	__pad;
265 };
266 
267 struct l_sockaddr {
268 	l_ushort	sa_family;
269 	char		sa_data[14];
270 };
271 
272 struct l_ifmap {
273 	l_ulong		mem_start;
274 	l_ulong		mem_end;
275 	l_ushort	base_addr;
276 	u_char		irq;
277 	u_char		dma;
278 	u_char		port;
279 } __packed;
280 
281 #define	LINUX_IFHWADDRLEN	6
282 #define	LINUX_IFNAMSIZ		16
283 
284 struct l_ifreq {
285 	union {
286 		char	ifrn_name[LINUX_IFNAMSIZ];
287 	} ifr_ifrn;
288 
289 	union {
290 		struct l_sockaddr	ifru_addr;
291 		struct l_sockaddr	ifru_dstaddr;
292 		struct l_sockaddr	ifru_broadaddr;
293 		struct l_sockaddr	ifru_netmask;
294 		struct l_sockaddr	ifru_hwaddr;
295 		l_short		ifru_flags[1];
296 		l_int		ifru_ivalue;
297 		l_int		ifru_mtu;
298 		struct l_ifmap	ifru_map;
299 		char		ifru_slave[LINUX_IFNAMSIZ];
300 		l_uintptr_t	ifru_data;
301 	} ifr_ifru;
302 } __packed;
303 
304 #define	ifr_name	ifr_ifrn.ifrn_name	/* Interface name */
305 #define	ifr_hwaddr	ifr_ifru.ifru_hwaddr	/* MAC address */
306 #define	ifr_ifindex	ifr_ifru.ifru_ivalue	/* Interface index */
307 
308 #define	linux_copyout_rusage(r, u)	copyout(r, u, sizeof(*r))
309 
310 /* robust futexes */
311 struct linux_robust_list {
312 	l_uintptr_t			next;
313 };
314 
315 struct linux_robust_list_head {
316 	struct linux_robust_list	list;
317 	l_long				futex_offset;
318 	l_uintptr_t			pending_list;
319 };
320 
321 #endif /* _ARM64_LINUX_H_ */
322