xref: /illumos-gate/usr/src/head/proc_service.h (revision ed093b41)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #ifndef _PROC_SERVICE_H
27 #define	_PROC_SERVICE_H
28 
29 /*
30  *  Description:
31  *	Types, global variables, and function definitions for provider
32  * of import functions for users of libc_db and librtld_db.
33  */
34 
35 #ifdef __cplusplus
36 extern "C" {
37 #endif
38 
39 #include <sys/types.h>
40 #include <sys/procfs_isa.h>
41 #include <sys/lwp.h>
42 #include <sys/auxv.h>
43 #include <elf.h>
44 #if defined(__i386) || defined(__amd64)	/* for struct ssd */
45 #include <sys/segments.h>
46 #include <sys/sysi86.h>
47 #endif
48 
49 
50 typedef unsigned long	psaddr_t;
51 
52 typedef enum {
53 	PS_OK,		/* generic "call succeeded" */
54 	PS_ERR,		/* generic error */
55 	PS_BADPID,	/* bad process handle */
56 	PS_BADLID,	/* bad lwp identifier */
57 	PS_BADADDR,	/* bad address */
58 	PS_NOSYM,	/* p_lookup() could not find given symbol */
59 	PS_NOFREGS,	/* FPU register set not available for given lwp */
60 	PS_NOXREGS	/* extended register set not available for given lwp */
61 } ps_err_e;
62 
63 struct ps_prochandle;
64 
65 /*
66  * See <sys/procfs_isa.h> for possible values of data_model.
67  */
68 extern ps_err_e ps_pdmodel(struct ps_prochandle *, int *data_model);
69 
70 /*
71  * Special values for 'object_name' to refer to certain well-known objects.
72  */
73 #define	PS_OBJ_EXEC	((const char *)0x0)	/* the executable file */
74 #define	PS_OBJ_LDSO	((const char *)0x1)	/* the dynamic linker */
75 
76 extern ps_err_e ps_pglobal_lookup(struct ps_prochandle *,
77 	const char *object_name, const char *sym_name, psaddr_t *sym_addr);
78 
79 #ifdef _LP64
80 typedef	Elf64_Sym	ps_sym_t;
81 #else
82 typedef	Elf32_Sym	ps_sym_t;
83 #endif
84 extern ps_err_e ps_pglobal_sym(struct ps_prochandle *,
85 	const char *object_name, const char *sym_name, ps_sym_t *sym);
86 
87 /*
88  * To read and write the process's address space.
89  */
90 extern ps_err_e ps_pread(struct ps_prochandle *,
91 			psaddr_t, void *, size_t);
92 extern ps_err_e ps_pwrite(struct ps_prochandle *,
93 			psaddr_t, const void *, size_t);
94 /*
95  * The following four functions can be implemented as simple aliases for
96  * the corresponding primary two functions above (#pragma weak ...).
97  * They are artifacts of history that must be maintained.
98  */
99 extern ps_err_e ps_pdread(struct ps_prochandle *,
100 			psaddr_t, void *, size_t);
101 extern ps_err_e ps_pdwrite(struct ps_prochandle *,
102 			psaddr_t, const void *, size_t);
103 extern ps_err_e ps_ptread(struct ps_prochandle *,
104 			psaddr_t, void *, size_t);
105 extern ps_err_e ps_ptwrite(struct ps_prochandle *,
106 			psaddr_t, const void *, size_t);
107 
108 extern ps_err_e ps_pstop(struct ps_prochandle *);
109 extern ps_err_e ps_pcontinue(struct ps_prochandle *);
110 extern ps_err_e ps_lstop(struct ps_prochandle *, lwpid_t);
111 extern ps_err_e ps_lcontinue(struct ps_prochandle *, lwpid_t);
112 
113 extern ps_err_e ps_lgetregs(struct ps_prochandle *,
114 			lwpid_t, prgregset_t);
115 extern ps_err_e ps_lsetregs(struct ps_prochandle *,
116 			lwpid_t, const prgregset_t);
117 extern ps_err_e ps_lgetfpregs(struct ps_prochandle *,
118 			lwpid_t, prfpregset_t *);
119 extern ps_err_e ps_lsetfpregs(struct ps_prochandle *,
120 			lwpid_t, const prfpregset_t *);
121 
122 extern ps_err_e ps_lgetxregsize(struct ps_prochandle *, lwpid_t, int *);
123 extern ps_err_e ps_lgetxregs(struct ps_prochandle *, lwpid_t, caddr_t);
124 extern ps_err_e ps_lsetxregs(struct ps_prochandle *, lwpid_t, caddr_t);
125 
126 #if defined(__i386) || defined(__amd64)
127 extern ps_err_e ps_lgetLDT(struct ps_prochandle *, lwpid_t, struct ssd *);
128 #endif
129 
130 extern ps_err_e ps_pauxv(struct ps_prochandle *, const auxv_t **);
131 extern ps_err_e ps_pbrandname(struct ps_prochandle *, char *, size_t);
132 
133 extern ps_err_e ps_kill(struct ps_prochandle *, int sig);
134 extern ps_err_e ps_lrolltoaddr(struct ps_prochandle *,
135 			lwpid_t, psaddr_t go_addr, psaddr_t stop_addr);
136 
137 extern void	ps_plog(const char *fmt, ...);
138 
139 #ifdef __cplusplus
140 }
141 #endif
142 
143 #endif	/* _PROC_SERVICE_H */
144