xref: /freebsd/sys/arm64/linux/linux.h (revision 7ef62cebc2f965b0f640263e179276928885e33d)
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_uint		l_gid_t;
53 typedef l_ushort	l_gid16_t;	/* XXX */
54 typedef l_uint		l_uid_t;
55 typedef l_ushort	l_uid16_t;	/* XXX */
56 typedef l_ulong		l_ino_t;
57 typedef l_int		l_key_t;
58 typedef l_long		l_loff_t;
59 typedef l_uint		l_mode_t;
60 typedef l_long		l_off_t;
61 typedef l_int		l_pid_t;
62 typedef l_ulong		l_size_t;
63 typedef l_long		l_suseconds_t;
64 typedef l_long		l_time_t;
65 typedef l_int		l_timer_t;	/* XXX */
66 typedef l_int		l_mqd_t;
67 typedef l_ulong		l_fd_mask;
68 
69 #include <compat/linux/linux_siginfo.h>
70 
71 typedef struct {
72 	l_int		val[2];
73 } l_fsid_t;
74 
75 typedef struct {
76 	l_time_t	tv_sec;
77 	l_suseconds_t	tv_usec;
78 } l_timeval;
79 
80 #define	l_fd_set	fd_set
81 
82 /* Miscellaneous */
83 #define	LINUX_AT_COUNT		21	/* Count of used aux entry types.
84 					 * Keep this synchronized with
85 					 * linux_copyout_auxargs() code.
86 					 */
87 
88 struct l___sysctl_args
89 {
90 	l_uintptr_t	name;
91 	l_int		nlen;
92 	l_uintptr_t	oldval;
93 	l_uintptr_t	oldlenp;
94 	l_uintptr_t	newval;
95 	l_uintptr_t	newlen;
96 	l_ulong		__spare[4];
97 };
98 
99 /* Resource limits */
100 #define	LINUX_RLIMIT_CPU	0
101 #define	LINUX_RLIMIT_FSIZE	1
102 #define	LINUX_RLIMIT_DATA	2
103 #define	LINUX_RLIMIT_STACK	3
104 #define	LINUX_RLIMIT_CORE	4
105 #define	LINUX_RLIMIT_RSS	5
106 #define	LINUX_RLIMIT_NPROC	6
107 #define	LINUX_RLIMIT_NOFILE	7
108 #define	LINUX_RLIMIT_MEMLOCK	8
109 #define	LINUX_RLIMIT_AS		9	/* Address space limit */
110 
111 #define	LINUX_RLIM_NLIMITS	10
112 
113 struct l_rlimit {
114 	l_ulong		rlim_cur;
115 	l_ulong		rlim_max;
116 };
117 
118 /* stat family of syscalls */
119 struct l_timespec {
120 	l_time_t	tv_sec;
121 	l_long		tv_nsec;
122 };
123 
124 #define	LINUX_O_DIRECTORY	000040000	/* Must be a directory */
125 #define	LINUX_O_NOFOLLOW	000100000	/* Do not follow links */
126 #define	LINUX_O_DIRECT		000200000	/* Direct disk access hint */
127 #define	LINUX_O_LARGEFILE	000400000
128 
129 struct l_newstat {
130 	l_ulong		st_dev;
131 	l_ino_t		st_ino;
132 	l_uint		st_mode;
133 	l_uint		st_nlink;
134 
135 	l_uid_t		st_uid;
136 	l_gid_t		st_gid;
137 
138 	l_ulong		st_rdev;
139 	l_ulong		__st_pad1;
140 	l_off_t		st_size;
141 	l_int		st_blksize;
142 	l_int		__st_pad2;
143 	l_long		st_blocks;
144 
145 	struct l_timespec	st_atim;
146 	struct l_timespec	st_mtim;
147 	struct l_timespec	st_ctim;
148 	l_uint		__unused1;
149 	l_uint		__unused2;
150 };
151 
152 /* sigaction flags */
153 #define	LINUX_SA_NOCLDSTOP	0x00000001
154 #define	LINUX_SA_NOCLDWAIT	0x00000002
155 #define	LINUX_SA_SIGINFO	0x00000004
156 #define	LINUX_SA_RESTORER	0x04000000
157 #define	LINUX_SA_ONSTACK	0x08000000
158 #define	LINUX_SA_RESTART	0x10000000
159 #define	LINUX_SA_INTERRUPT	0x20000000	/* XXX */
160 #define	LINUX_SA_NOMASK		0x40000000	/* SA_NODEFER */
161 #define	LINUX_SA_ONESHOT	0x80000000	/* SA_RESETHAND */
162 
163 typedef void	(*l_handler_t)(l_int);
164 
165 typedef struct {
166 	l_handler_t	lsa_handler;
167 	l_ulong		lsa_flags;
168 	l_uintptr_t	lsa_restorer;
169 	l_sigset_t	lsa_mask;
170 } l_sigaction_t;				/* XXX */
171 
172 typedef struct {
173 	l_uintptr_t	ss_sp;
174 	l_int		ss_flags;
175 	l_size_t	ss_size;
176 } l_stack_t;
177 
178 union l_semun {
179 	l_int		val;
180 	l_uintptr_t	buf;
181 	l_uintptr_t	array;
182 	l_uintptr_t	__buf;
183 	l_uintptr_t	__pad;
184 };
185 
186 #define	linux_copyout_rusage(r, u)	copyout(r, u, sizeof(*r))
187 
188 struct linux_pt_regset {
189 	l_ulong x[31];
190 	l_ulong sp;
191 	l_ulong pc;
192 	l_ulong cpsr;
193 };
194 
195 #ifdef _KERNEL
196 struct reg;
197 struct syscall_info;
198 
199 void	bsd_to_linux_regset(const struct reg *b_reg,
200 	    struct linux_pt_regset *l_regset);
201 void	linux_to_bsd_regset(struct reg *b_reg,
202 	    const struct linux_pt_regset *l_regset);
203 void	linux_ptrace_get_syscall_info_machdep(const struct reg *reg,
204 	    struct syscall_info *si);
205 int	linux_ptrace_getregs_machdep(struct thread *td, pid_t pid,
206 	    struct linux_pt_regset *l_regset);
207 int	linux_ptrace_peekuser(struct thread *td, pid_t pid,
208 	    void *addr, void *data);
209 int	linux_ptrace_pokeuser(struct thread *td, pid_t pid,
210 	    void *addr, void *data);
211 #endif /* _KERNEL */
212 
213 #endif /* _ARM64_LINUX_H_ */
214