xref: /freebsd/sys/sys/procfs.h (revision 517904de5ccac643589c71ac0d2751797f89e4f9)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3  *
4  * Copyright (c) 1998 John D. Polstra.
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  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  *
28  * $FreeBSD$
29  */
30 
31 #ifndef _SYS_PROCFS_H_
32 #define _SYS_PROCFS_H_
33 
34 #include <sys/param.h>
35 #include <machine/reg.h>
36 
37 typedef struct reg gregset_t;
38 typedef struct fpreg fpregset_t;
39 
40 /*
41  * These structures define an interface between core files and the debugger.
42  * Never change or delete any elements.  If you add elements, add them to
43  * the end of the structure, and increment the value of its version field.
44  * This will help to ensure that today's core dump will still be usable
45  * with next year's debugger.
46  *
47  * A lot more things should be added to these structures.  At present,
48  * they contain the absolute bare minimum required to allow GDB to work
49  * with ELF core dumps.
50  */
51 
52 /*
53  * The parenthsized numbers like (1) indicate the minimum version number
54  * for which each element exists in the structure.  The version number is
55  * not bumped when adding new fields to the end, only if the meaning of
56  * an existing field changes.  Additional fields are annotated as (1a),
57  * (1b), etc. to indicate the groupings of additions.
58  */
59 
60 #define PRSTATUS_VERSION	1	/* Current version of prstatus_t */
61 
62 typedef struct prstatus {
63     int		pr_version;	/* Version number of struct (1) */
64     size_t	pr_statussz;	/* sizeof(prstatus_t) (1) */
65     size_t	pr_gregsetsz;	/* sizeof(gregset_t) (1) */
66     size_t	pr_fpregsetsz;	/* sizeof(fpregset_t) (1) */
67     int		pr_osreldate;	/* Kernel version (1) */
68     int		pr_cursig;	/* Current signal (1) */
69     pid_t	pr_pid;		/* LWP (Thread) ID (1) */
70     gregset_t	pr_reg;		/* General purpose registers (1) */
71 } prstatus_t;
72 
73 typedef gregset_t prgregset_t[1];
74 typedef fpregset_t prfpregset_t;
75 
76 #define PRFNAMESZ	16	/* Maximum command length saved */
77 #define PRARGSZ		80	/* Maximum argument bytes saved */
78 
79 #define PRPSINFO_VERSION	1	/* Current version of prpsinfo_t */
80 
81 typedef struct prpsinfo {
82     int		pr_version;	/* Version number of struct (1) */
83     size_t	pr_psinfosz;	/* sizeof(prpsinfo_t) (1) */
84     char	pr_fname[PRFNAMESZ+1];	/* Command name, null terminated (1) */
85     char	pr_psargs[PRARGSZ+1];	/* Arguments, null terminated (1) */
86     pid_t	pr_pid;		/* Process ID (1a) */
87 } prpsinfo_t;
88 
89 typedef struct thrmisc {
90     char	pr_tname[MAXCOMLEN+1];	/* Thread name, null terminated (1) */
91     u_int	_pad;			/* Convenience pad, 0-filled (1) */
92 } thrmisc_t;
93 
94 typedef uint64_t psaddr_t;	/* An address in the target process. */
95 
96 #ifdef __HAVE_REG32
97 typedef struct prstatus32 {
98 	int32_t	pr_version;
99 	uint32_t pr_statussz;
100 	uint32_t pr_gregsetsz;
101 	uint32_t pr_fpregsetsz;
102 	int32_t	pr_osreldate;
103 	int32_t	pr_cursig;
104 	int32_t	pr_pid;
105 	struct reg32 pr_reg;
106 } prstatus32_t;
107 
108 typedef struct prpsinfo32 {
109 	int32_t	pr_version;
110 	uint32_t pr_psinfosz;
111 	char	pr_fname[PRFNAMESZ+1];
112 	char	pr_psargs[PRARGSZ+1];
113 	int32_t	pr_pid;
114 } prpsinfo32_t;
115 
116 struct thrmisc32 {
117 	char	pr_tname[MAXCOMLEN+1];
118 	uint32_t _pad;
119 };
120 #endif /* __HAVE_REG32 */
121 
122 #endif /* _SYS_PROCFS_H_ */
123