xref: /freebsd/sys/arm64/linux/linux.h (revision e3aa18ad71782a73d3dd9dd3d526bbd2b607ca16)
1 /*-
2  * Copyright (c) 1994-1996 Søren Schmidt
3  * Copyright (c) 2013 Dmitry Chagin <dchagin@FreeBSD.org>
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 #include <compat/linux/linux_siginfo.h>
71 
72 typedef struct {
73 	l_int		val[2];
74 } l_fsid_t;
75 
76 typedef struct {
77 	l_time_t	tv_sec;
78 	l_suseconds_t	tv_usec;
79 } l_timeval;
80 
81 #define	l_fd_set	fd_set
82 
83 /* Miscellaneous */
84 #define	LINUX_AT_COUNT		21
85 
86 struct l___sysctl_args
87 {
88 	l_uintptr_t	name;
89 	l_int		nlen;
90 	l_uintptr_t	oldval;
91 	l_uintptr_t	oldlenp;
92 	l_uintptr_t	newval;
93 	l_uintptr_t	newlen;
94 	l_ulong		__spare[4];
95 };
96 
97 /* Resource limits */
98 #define	LINUX_RLIMIT_CPU	0
99 #define	LINUX_RLIMIT_FSIZE	1
100 #define	LINUX_RLIMIT_DATA	2
101 #define	LINUX_RLIMIT_STACK	3
102 #define	LINUX_RLIMIT_CORE	4
103 #define	LINUX_RLIMIT_RSS	5
104 #define	LINUX_RLIMIT_NPROC	6
105 #define	LINUX_RLIMIT_NOFILE	7
106 #define	LINUX_RLIMIT_MEMLOCK	8
107 #define	LINUX_RLIMIT_AS		9	/* Address space limit */
108 
109 #define	LINUX_RLIM_NLIMITS	10
110 
111 struct l_rlimit {
112 	l_ulong		rlim_cur;
113 	l_ulong		rlim_max;
114 };
115 
116 /* stat family of syscalls */
117 struct l_timespec {
118 	l_time_t	tv_sec;
119 	l_long		tv_nsec;
120 };
121 
122 #define	LINUX_O_DIRECTORY	000040000	/* Must be a directory */
123 #define	LINUX_O_NOFOLLOW	000100000	/* Do not follow links */
124 #define	LINUX_O_DIRECT		000200000	/* Direct disk access hint */
125 #define	LINUX_O_LARGEFILE	000400000
126 
127 struct l_newstat {
128 	l_dev_t		st_dev;
129 	l_ino_t		st_ino;
130 	l_uint		st_mode;
131 	l_uint		st_nlink;
132 
133 	l_uid_t		st_uid;
134 	l_gid_t		st_gid;
135 
136 	l_dev_t		st_rdev;
137 	l_ulong		__st_pad1;
138 	l_off_t		st_size;
139 	l_int		st_blksize;
140 	l_int		__st_pad2;
141 	l_long		st_blocks;
142 
143 	struct l_timespec	st_atim;
144 	struct l_timespec	st_mtim;
145 	struct l_timespec	st_ctim;
146 	l_uint		__unused1;
147 	l_uint		__unused2;
148 };
149 
150 /* sigaction flags */
151 #define	LINUX_SA_NOCLDSTOP	0x00000001
152 #define	LINUX_SA_NOCLDWAIT	0x00000002
153 #define	LINUX_SA_SIGINFO	0x00000004
154 #define	LINUX_SA_RESTORER	0x04000000
155 #define	LINUX_SA_ONSTACK	0x08000000
156 #define	LINUX_SA_RESTART	0x10000000
157 #define	LINUX_SA_INTERRUPT	0x20000000	/* XXX */
158 #define	LINUX_SA_NOMASK		0x40000000	/* SA_NODEFER */
159 #define	LINUX_SA_ONESHOT	0x80000000	/* SA_RESETHAND */
160 
161 typedef void	(*l_handler_t)(l_int);
162 
163 typedef struct {
164 	l_handler_t	lsa_handler;
165 	l_ulong		lsa_flags;
166 	l_uintptr_t	lsa_restorer;
167 	l_sigset_t	lsa_mask;
168 } l_sigaction_t;				/* XXX */
169 
170 typedef struct {
171 	l_uintptr_t	ss_sp;
172 	l_int		ss_flags;
173 	l_size_t	ss_size;
174 } l_stack_t;
175 
176 union l_semun {
177 	l_int		val;
178 	l_uintptr_t	buf;
179 	l_uintptr_t	array;
180 	l_uintptr_t	__buf;
181 	l_uintptr_t	__pad;
182 };
183 
184 struct l_ifmap {
185 	l_ulong		mem_start;
186 	l_ulong		mem_end;
187 	l_ushort	base_addr;
188 	u_char		irq;
189 	u_char		dma;
190 	u_char		port;
191 	/* 3 bytes spare*/
192 };
193 
194 struct l_ifreq {
195 	union {
196 		char	ifrn_name[LINUX_IFNAMSIZ];
197 	} ifr_ifrn;
198 
199 	union {
200 		struct l_sockaddr	ifru_addr;
201 		struct l_sockaddr	ifru_dstaddr;
202 		struct l_sockaddr	ifru_broadaddr;
203 		struct l_sockaddr	ifru_netmask;
204 		struct l_sockaddr	ifru_hwaddr;
205 		l_short		ifru_flags[1];
206 		l_int		ifru_ivalue;
207 		l_int		ifru_mtu;
208 		struct l_ifmap	ifru_map;
209 		char		ifru_slave[LINUX_IFNAMSIZ];
210 		l_uintptr_t	ifru_data;
211 	} ifr_ifru;
212 };
213 
214 #define	ifr_name	ifr_ifrn.ifrn_name	/* Interface name */
215 #define	ifr_hwaddr	ifr_ifru.ifru_hwaddr	/* MAC address */
216 #define	ifr_ifindex	ifr_ifru.ifru_ivalue	/* Interface index */
217 
218 #define	linux_copyout_rusage(r, u)	copyout(r, u, sizeof(*r))
219 
220 /* robust futexes */
221 struct linux_robust_list {
222 	l_uintptr_t			next;
223 };
224 
225 struct linux_robust_list_head {
226 	struct linux_robust_list	list;
227 	l_long				futex_offset;
228 	l_uintptr_t			pending_list;
229 };
230 
231 struct linux_pt_regset {
232 	l_ulong x[31];
233 	l_ulong sp;
234 	l_ulong pc;
235 	l_ulong cpsr;
236 };
237 
238 struct reg;
239 struct syscall_info;
240 
241 void	bsd_to_linux_regset(const struct reg *b_reg,
242 	    struct linux_pt_regset *l_regset);
243 void	linux_to_bsd_regset(struct reg *b_reg,
244 	    const struct linux_pt_regset *l_regset);
245 void	linux_ptrace_get_syscall_info_machdep(const struct reg *reg,
246 	    struct syscall_info *si);
247 int	linux_ptrace_getregs_machdep(struct thread *td, pid_t pid,
248 	    struct linux_pt_regset *l_regset);
249 
250 #endif /* _ARM64_LINUX_H_ */
251