xref: /freebsd/sys/arm/include/proc.h (revision 6829dae12bb055451fa467da4589c43bd03b1e64)
1 /*-
2  * SPDX-License-Identifier: BSD-4-Clause
3  *
4  * Copyright (c) 1991 Regents of the University of California.
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. All advertising materials mentioning features or use of this software
16  *    must display the following acknowledgement:
17  *      This product includes software developed by the University of
18  *      California, Berkeley and its contributors.
19  * 4. Neither the name of the University nor the names of its contributors
20  *    may be used to endorse or promote products derived from this software
21  *    without specific prior written permission.
22  *
23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33  * SUCH DAMAGE.
34  *
35  *      from: @(#)proc.h        7.1 (Berkeley) 5/15/91
36  *	from: FreeBSD: src/sys/i386/include/proc.h,v 1.11 2001/06/29
37  * $FreeBSD$
38  */
39 
40 #ifndef	_MACHINE_PROC_H_
41 #define	_MACHINE_PROC_H_
42 
43 #include <machine/utrap.h>
44 
45 struct md_utrap {
46 	utrap_entry_t *ut_precise[UT_MAX];	/* must be first */
47 	int	ut_refcnt;
48 };
49 
50 struct mdthread {
51 	int	md_spinlock_count;	/* (k) */
52 	register_t md_saved_cspr;	/* (k) */
53 	register_t md_spurflt_addr;     /* (k) Spurious page fault address. */
54 	int md_ptrace_instr;
55 	int md_ptrace_addr;
56 	int md_ptrace_instr_alt;
57 	int md_ptrace_addr_alt;
58 #if __ARM_ARCH < 6
59 	register_t md_tp;
60 	void *md_ras_start;
61 	void *md_ras_end;
62 #endif
63 };
64 
65 struct mdproc {
66 	struct	md_utrap *md_utrap;
67 	void	*md_sigtramp;
68 };
69 
70 #define	KINFO_PROC_SIZE 816
71 
72 #define MAXARGS	8
73 /*
74  * This holds the syscall state for a single system call.
75  * As some syscall arguments may be 64-bit aligned we need to ensure the
76  * args value is 64-bit aligned. The ABI will then ensure any 64-bit
77  * arguments are already correctly aligned, even if they were passed in
78  * via registers, we just need to make sure we copy them to an aligned
79  * buffer.
80  */
81 struct syscall_args {
82 	u_int code;
83 	struct sysent *callp;
84 	register_t args[MAXARGS];
85 	int narg;
86 	u_int nap;
87 } __aligned(8);
88 
89 #endif /* !_MACHINE_PROC_H_ */
90