xref: /freebsd/sys/amd64/linux/linux.h (revision 5956d97f4b3204318ceb6aa9c77bd0bc6ea87a41)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright (c) 1994-1996 Søren Schmidt
5  * All rights reserved.
6  * Copyright (c) 2013 Dmitry Chagin <dchagin@FreeBSD.org>
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  * $FreeBSD$
30  */
31 
32 #ifndef _AMD64_LINUX_H_
33 #define	_AMD64_LINUX_H_
34 
35 #include <sys/abi_compat.h>
36 
37 #include <compat/linux/linux.h>
38 #include <amd64/linux/linux_syscall.h>
39 
40 #define	LINUX_LEGACY_SYSCALLS
41 
42 #define	LINUX_DTRACE	linuxulator
43 
44 /*
45  * Provide a separate set of types for the Linux types.
46  */
47 typedef int32_t		l_int;
48 typedef int64_t		l_long;
49 typedef int16_t		l_short;
50 typedef uint32_t	l_uint;
51 typedef uint64_t	l_ulong;
52 typedef uint16_t	l_ushort;
53 
54 typedef l_ulong		l_uintptr_t;
55 typedef l_long		l_clock_t;
56 typedef l_int		l_daddr_t;
57 typedef l_ulong		l_dev_t;
58 typedef l_uint		l_gid_t;
59 typedef l_ushort	l_gid16_t;
60 typedef l_uint		l_uid_t;
61 typedef	l_ushort	l_uid16_t;
62 typedef l_ulong		l_ino_t;
63 typedef l_int		l_key_t;
64 typedef l_long		l_loff_t;
65 typedef l_uint		l_mode_t;
66 typedef l_long		l_off_t;
67 typedef l_int		l_pid_t;
68 typedef l_ulong		l_size_t;
69 typedef l_long		l_ssize_t;
70 typedef l_long		l_suseconds_t;
71 typedef l_long		l_time_t;
72 typedef l_int		l_timer_t;
73 typedef l_int		l_mqd_t;
74 typedef l_size_t	l_socklen_t;
75 typedef	l_ulong		l_fd_mask;
76 
77 #include <compat/linux/linux_siginfo.h>
78 
79 typedef struct {
80 	l_int		val[2];
81 } l_fsid_t;
82 
83 typedef struct {
84 	l_time_t	tv_sec;
85 	l_suseconds_t	tv_usec;
86 } l_timeval;
87 
88 #define	l_fd_set	fd_set
89 
90 /*
91  * Miscellaneous
92  */
93 #define LINUX_AT_COUNT		20	/* Count of used aux entry types. */
94 
95 struct l___sysctl_args
96 {
97 	l_uintptr_t	name;
98 	l_int		nlen;
99 	l_uintptr_t	oldval;
100 	l_uintptr_t	oldlenp;
101 	l_uintptr_t	newval;
102 	l_size_t	newlen;
103 	l_ulong		__spare[4];
104 };
105 
106 /* Resource limits */
107 #define	LINUX_RLIMIT_CPU	0
108 #define	LINUX_RLIMIT_FSIZE	1
109 #define	LINUX_RLIMIT_DATA	2
110 #define	LINUX_RLIMIT_STACK	3
111 #define	LINUX_RLIMIT_CORE	4
112 #define	LINUX_RLIMIT_RSS	5
113 #define	LINUX_RLIMIT_NPROC	6
114 #define	LINUX_RLIMIT_NOFILE	7
115 #define	LINUX_RLIMIT_MEMLOCK	8
116 #define	LINUX_RLIMIT_AS		9	/* Address space limit */
117 
118 #define	LINUX_RLIM_NLIMITS	10
119 
120 struct l_rlimit {
121 	l_ulong		rlim_cur;
122 	l_ulong		rlim_max;
123 };
124 
125 /*
126  * stat family of syscalls
127  */
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_ulong		st_nlink;
137 	l_uint		st_mode;
138 	l_uid_t		st_uid;
139 	l_gid_t		st_gid;
140 	l_uint		__st_pad1;
141 	l_dev_t		st_rdev;
142 	l_off_t		st_size;
143 	l_long		st_blksize;
144 	l_long		st_blocks;
145 	struct l_timespec	st_atim;
146 	struct l_timespec	st_mtim;
147 	struct l_timespec	st_ctim;
148 	l_long		__unused1;
149 	l_long		__unused2;
150 	l_long		__unused3;
151 };
152 
153 /* sigaction flags */
154 #define	LINUX_SA_NOCLDSTOP	0x00000001
155 #define	LINUX_SA_NOCLDWAIT	0x00000002
156 #define	LINUX_SA_SIGINFO	0x00000004
157 #define	LINUX_SA_RESTORER	0x04000000
158 #define	LINUX_SA_ONSTACK	0x08000000
159 #define	LINUX_SA_RESTART	0x10000000
160 #define	LINUX_SA_INTERRUPT	0x20000000
161 #define	LINUX_SA_NOMASK		0x40000000
162 #define	LINUX_SA_ONESHOT	0x80000000
163 
164 /* sigaltstack */
165 #define	LINUX_MINSIGSTKSZ	2048
166 
167 typedef void	(*l_handler_t)(l_int);
168 
169 typedef struct {
170 	l_handler_t	lsa_handler;
171 	l_ulong		lsa_flags;
172 	l_uintptr_t	lsa_restorer;
173 	l_sigset_t	lsa_mask;
174 } l_sigaction_t;
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 /*
183  * mount flags
184  */
185 #define	LINUX_MS_RDONLY		0x0001
186 #define	LINUX_MS_NOSUID		0x0002
187 #define	LINUX_MS_NODEV		0x0004
188 #define	LINUX_MS_NOEXEC		0x0008
189 #define	LINUX_MS_REMOUNT	0x0020
190 
191 /*
192  * SystemV IPC defines
193  */
194 #define	LINUX_IPC_RMID		0
195 #define	LINUX_IPC_SET		1
196 #define	LINUX_IPC_STAT		2
197 #define	LINUX_IPC_INFO		3
198 
199 #define	LINUX_SHM_LOCK		11
200 #define	LINUX_SHM_UNLOCK	12
201 #define	LINUX_SHM_STAT		13
202 #define	LINUX_SHM_INFO		14
203 
204 #define	LINUX_SHM_RDONLY	0x1000
205 #define	LINUX_SHM_RND		0x2000
206 #define	LINUX_SHM_REMAP		0x4000
207 
208 /* semctl commands */
209 #define	LINUX_GETPID		11
210 #define	LINUX_GETVAL		12
211 #define	LINUX_GETALL		13
212 #define	LINUX_GETNCNT		14
213 #define	LINUX_GETZCNT		15
214 #define	LINUX_SETVAL		16
215 #define	LINUX_SETALL		17
216 #define	LINUX_SEM_STAT		18
217 #define	LINUX_SEM_INFO		19
218 
219 union l_semun {
220 	l_int		val;
221 	l_uintptr_t	buf;
222 	l_uintptr_t	array;
223 	l_uintptr_t	__buf;
224 	l_uintptr_t	__pad;
225 };
226 
227 struct l_ifmap {
228 	l_ulong		mem_start;
229 	l_ulong		mem_end;
230 	l_ushort	base_addr;
231 	u_char		irq;
232 	u_char		dma;
233 	u_char		port;
234 	/* 3 bytes spare */
235 };
236 
237 struct l_ifreq {
238 	union {
239 		char	ifrn_name[LINUX_IFNAMSIZ];
240 	} ifr_ifrn;
241 
242 	union {
243 		struct l_sockaddr	ifru_addr;
244 		struct l_sockaddr	ifru_dstaddr;
245 		struct l_sockaddr	ifru_broadaddr;
246 		struct l_sockaddr	ifru_netmask;
247 		struct l_sockaddr	ifru_hwaddr;
248 		l_short		ifru_flags[1];
249 		l_int		ifru_ivalue;
250 		l_int		ifru_mtu;
251 		struct l_ifmap	ifru_map;
252 		char		ifru_slave[LINUX_IFNAMSIZ];
253 		l_uintptr_t	ifru_data;
254 	} ifr_ifru;
255 };
256 
257 #define	ifr_name	ifr_ifrn.ifrn_name	/* Interface name */
258 #define	ifr_hwaddr	ifr_ifru.ifru_hwaddr	/* MAC address */
259 #define	ifr_ifindex	ifr_ifru.ifru_ivalue	/* Interface index */
260 
261 struct l_ifconf {
262 	int	ifc_len;
263 	union {
264 		l_uintptr_t	ifcu_buf;
265 		l_uintptr_t	ifcu_req;
266 	} ifc_ifcu;
267 };
268 
269 #define	ifc_buf		ifc_ifcu.ifcu_buf
270 #define	ifc_req		ifc_ifcu.ifcu_req
271 
272 #define LINUX_ARCH_SET_GS		0x1001
273 #define LINUX_ARCH_SET_FS		0x1002
274 #define LINUX_ARCH_GET_FS		0x1003
275 #define LINUX_ARCH_GET_GS		0x1004
276 #define LINUX_ARCH_CET_STATUS		0x3001
277 
278 #define	linux_copyout_rusage(r, u)	copyout(r, u, sizeof(*r))
279 
280 /* robust futexes */
281 struct linux_robust_list {
282 	l_uintptr_t			next;
283 };
284 
285 struct linux_robust_list_head {
286 	struct linux_robust_list	list;
287 	l_long				futex_offset;
288 	l_uintptr_t			pending_list;
289 };
290 
291 /* This corresponds to 'struct user_regs_struct' in Linux. */
292 struct linux_pt_regset {
293 	l_ulong	r15;
294 	l_ulong	r14;
295 	l_ulong	r13;
296 	l_ulong	r12;
297 	l_ulong	rbp;
298 	l_ulong	rbx;
299 	l_ulong	r11;
300 	l_ulong	r10;
301 	l_ulong	r9;
302 	l_ulong	r8;
303 	l_ulong	rax;
304 	l_ulong	rcx;
305 	l_ulong	rdx;
306 	l_ulong	rsi;
307 	l_ulong	rdi;
308 	l_ulong	orig_rax;
309 	l_ulong	rip;
310 	l_ulong	cs;
311 	l_ulong	eflags;
312 	l_ulong	rsp;
313 	l_ulong	ss;
314 	l_ulong fs_base;
315 	l_ulong gs_base;
316 	l_ulong ds;
317 	l_ulong es;
318 	l_ulong fs;
319 	l_ulong gs;
320 };
321 
322 #ifdef _KERNEL
323 struct reg;
324 struct syscall_info;
325 
326 void	bsd_to_linux_regset(const struct reg *b_reg,
327 	    struct linux_pt_regset *l_regset);
328 void	linux_to_bsd_regset(struct reg *b_reg,
329 	    const struct linux_pt_regset *l_regset);
330 void	linux_ptrace_get_syscall_info_machdep(const struct reg *reg,
331 	    struct syscall_info *si);
332 int	linux_ptrace_getregs_machdep(struct thread *td, pid_t pid,
333 	    struct linux_pt_regset *l_regset);
334 #endif /* _KERNEL */
335 
336 #endif /* !_AMD64_LINUX_H_ */
337