summaryrefslogtreecommitdiff
path: root/gdb/gdb_proc_service.h
blob: b5ab0e5699d864147eb28af82fe03ed0c4f7321c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
/* <proc_service.h> replacement for systems that don't have it.
   Copyright (C) 2000-2018 Free Software Foundation, Inc.

   This file is part of GDB.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */

#ifndef GDB_PROC_SERVICE_H
#define GDB_PROC_SERVICE_H

#include <sys/types.h>

#include "gregset.h"

#ifdef HAVE_PROC_SERVICE_H

/* glibc's proc_service.h doesn't wrap itself with extern "C".  Need
   to do it ourselves.  */
EXTERN_C_PUSH

#include <proc_service.h>

EXTERN_C_POP

#else /* HAVE_PROC_SERVICE_H */

/* The following fallback definitions have been imported and adjusted
   from glibc's proc_service.h  */

/* Callback interface for libthread_db, functions users must define.
   Copyright (C) 1999,2002,2003 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, see
   <http://www.gnu.org/licenses/>.  */

/* The definitions in this file must correspond to those in the debugger.  */

#ifdef HAVE_SYS_PROCFS_H
#include <sys/procfs.h>
#endif

EXTERN_C_PUSH

/* Functions in this interface return one of these status codes.  */
typedef enum
{
  PS_OK,		/* Generic "call succeeded".  */
  PS_ERR,		/* Generic error. */
  PS_BADPID,		/* Bad process handle.  */
  PS_BADLID,		/* Bad LWP identifier.  */
  PS_BADADDR,		/* Bad address.  */
  PS_NOSYM,		/* Could not find given symbol.  */
  PS_NOFREGS		/* FPU register set not available for given LWP.  */
} ps_err_e;

#ifndef HAVE_LWPID_T
typedef unsigned int lwpid_t;
#endif

#ifndef HAVE_PSADDR_T
typedef void *psaddr_t;
#endif

#ifndef HAVE_PRGREGSET_T
typedef gdb_gregset_t prgregset_t;
#endif

#ifndef HAVE_PRFPREGSET_T
typedef gdb_fpregset_t prfpregset_t;
#endif

/* This type is opaque in this interface.  It's defined by the user of
   libthread_db.  GDB's version is defined below.  */
struct ps_prochandle;


/* Read or write process memory at the given address.  */
extern ps_err_e ps_pdread (struct ps_prochandle *,
			   psaddr_t, void *, size_t);
extern ps_err_e ps_pdwrite (struct ps_prochandle *,
			    psaddr_t, const void *, size_t);
extern ps_err_e ps_ptread (struct ps_prochandle *,
			   psaddr_t, void *, size_t);
extern ps_err_e ps_ptwrite (struct ps_prochandle *,
			    psaddr_t, const void *, size_t);


/* Get and set the given LWP's general or FPU register set.  */
extern ps_err_e ps_lgetregs (struct ps_prochandle *,
			     lwpid_t, prgregset_t);
extern ps_err_e ps_lsetregs (struct ps_prochandle *,
			     lwpid_t, const prgregset_t);
extern ps_err_e ps_lgetfpregs (struct ps_prochandle *,
			       lwpid_t, prfpregset_t *);
extern ps_err_e ps_lsetfpregs (struct ps_prochandle *,
			       lwpid_t, const prfpregset_t *);

/* Return the PID of the process.  */
extern pid_t ps_getpid (struct ps_prochandle *);

/* Fetch the special per-thread address associated with the given LWP.
   This call is only used on a few platforms (most use a normal register).
   The meaning of the `int' parameter is machine-dependent.  */
extern ps_err_e ps_get_thread_area (struct ps_prochandle *,
				    lwpid_t, int, psaddr_t *);


/* Look up the named symbol in the named DSO in the symbol tables
   associated with the process being debugged, filling in *SYM_ADDR
   with the corresponding run-time address.  */
extern ps_err_e ps_pglobal_lookup (struct ps_prochandle *,
				   const char *object_name,
				   const char *sym_name,
				   psaddr_t *sym_addr);


/* Stop or continue the entire process.  */
extern ps_err_e ps_pstop (struct ps_prochandle *);
extern ps_err_e ps_pcontinue (struct ps_prochandle *);

/* Stop or continue the given LWP alone.  */
extern ps_err_e ps_lstop (struct ps_prochandle *, lwpid_t);
extern ps_err_e ps_lcontinue (struct ps_prochandle *, lwpid_t);

/* The following are only defined in/called by Solaris.  */

/* Get size of extra register set.  */
extern ps_err_e ps_lgetxregsize (struct ps_prochandle *ph,
				 lwpid_t lwpid, int *xregsize);
/* Get extra register set.  */
extern ps_err_e ps_lgetxregs (struct ps_prochandle *ph, lwpid_t lwpid,
			      caddr_t xregset);
extern ps_err_e ps_lsetxregs (struct ps_prochandle *ph, lwpid_t lwpid,
			      caddr_t xregset);

/* Log a message (sends to gdb_stderr).  */
extern void ps_plog (const char *fmt, ...);

EXTERN_C_POP

#endif /* HAVE_PROC_SERVICE_H */

/* Fix-up some broken systems.  */

/* Unfortunately glibc 2.1.3 was released with a broken prfpregset_t
   type.  We let configure check for this lossage, and make
   appropriate typedefs here.  */

#ifdef PRFPREGSET_T_BROKEN
typedef gdb_fpregset_t gdb_prfpregset_t;
#else
typedef prfpregset_t gdb_prfpregset_t;
#endif

/* GDB specific structure that identifies the target process.  */
struct ps_prochandle
{
  /* The LWP we use for memory reads.  */
  ptid_t ptid;
};

#endif /* gdb_proc_service.h */