OpenCores
URL https://opencores.org/ocsvn/openrisc/openrisc/trunk

Subversion Repositories openrisc

[/] [openrisc/] [trunk/] [gnu-stable/] [gdb-7.2/] [gdb/] [regcache.h] - Blame information for rev 841

Details | Compare with Previous | View Log

Line No. Rev Author Line
1 330 jeremybenn
/* Cache and manage the values of registers for GDB, the GNU debugger.
2
 
3
   Copyright (C) 1986, 1987, 1989, 1991, 1994, 1995, 1996, 1998, 2000, 2001,
4
   2002, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
5
 
6
   This file is part of GDB.
7
 
8
   This program is free software; you can redistribute it and/or modify
9
   it under the terms of the GNU General Public License as published by
10
   the Free Software Foundation; either version 3 of the License, or
11
   (at your option) any later version.
12
 
13
   This program is distributed in the hope that it will be useful,
14
   but WITHOUT ANY WARRANTY; without even the implied warranty of
15
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16
   GNU General Public License for more details.
17
 
18
   You should have received a copy of the GNU General Public License
19
   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
20
 
21
#ifndef REGCACHE_H
22
#define REGCACHE_H
23
 
24
struct regcache;
25
struct gdbarch;
26
struct address_space;
27
 
28
extern struct regcache *get_current_regcache (void);
29
extern struct regcache *get_thread_regcache (ptid_t ptid);
30
extern struct regcache *get_thread_arch_regcache (ptid_t, struct gdbarch *);
31
 
32
void regcache_xfree (struct regcache *regcache);
33
struct cleanup *make_cleanup_regcache_xfree (struct regcache *regcache);
34
struct regcache *regcache_xmalloc (struct gdbarch *gdbarch,
35
                                   struct address_space *aspace);
36
 
37
/* Return REGCACHE's architecture.  */
38
 
39
extern struct gdbarch *get_regcache_arch (const struct regcache *regcache);
40
 
41
/* Return REGCACHE's address space.  */
42
 
43
extern struct address_space *get_regcache_aspace (const struct regcache *regcache);
44
 
45
/* Transfer a raw register [0..NUM_REGS) between core-gdb and the
46
   regcache. */
47
 
48
void regcache_raw_read (struct regcache *regcache, int rawnum, gdb_byte *buf);
49
void regcache_raw_write (struct regcache *regcache, int rawnum,
50
                         const gdb_byte *buf);
51
extern void regcache_raw_read_signed (struct regcache *regcache,
52
                                      int regnum, LONGEST *val);
53
extern void regcache_raw_read_unsigned (struct regcache *regcache,
54
                                        int regnum, ULONGEST *val);
55
extern void regcache_raw_write_signed (struct regcache *regcache,
56
                                       int regnum, LONGEST val);
57
extern void regcache_raw_write_unsigned (struct regcache *regcache,
58
                                         int regnum, ULONGEST val);
59
 
60
/* Partial transfer of a raw registers.  These perform read, modify,
61
   write style operations.  */
62
 
63
void regcache_raw_read_part (struct regcache *regcache, int regnum,
64
                             int offset, int len, gdb_byte *buf);
65
void regcache_raw_write_part (struct regcache *regcache, int regnum,
66
                              int offset, int len, const gdb_byte *buf);
67
 
68
int regcache_valid_p (const struct regcache *regcache, int regnum);
69
 
70
void regcache_invalidate (struct regcache *regcache, int regnum);
71
 
72
/* Transfer a cooked register [0..NUM_REGS+NUM_PSEUDO_REGS).  */
73
void regcache_cooked_read (struct regcache *regcache, int rawnum,
74
                           gdb_byte *buf);
75
void regcache_cooked_write (struct regcache *regcache, int rawnum,
76
                            const gdb_byte *buf);
77
 
78
/* NOTE: cagney/2002-08-13: At present GDB has no reliable mechanism
79
   for indicating when a ``cooked'' register was constructed from
80
   invalid or unavailable ``raw'' registers.  One fairly easy way of
81
   adding such a mechanism would be for the cooked functions to return
82
   a register valid indication.  Given the possibility of such a
83
   change, the extract functions below use a reference parameter,
84
   rather than a function result.  */
85
 
86
/* Read a register as a signed/unsigned quantity.  */
87
extern void regcache_cooked_read_signed (struct regcache *regcache,
88
                                         int regnum, LONGEST *val);
89
extern void regcache_cooked_read_unsigned (struct regcache *regcache,
90
                                           int regnum, ULONGEST *val);
91
extern void regcache_cooked_write_signed (struct regcache *regcache,
92
                                          int regnum, LONGEST val);
93
extern void regcache_cooked_write_unsigned (struct regcache *regcache,
94
                                            int regnum, ULONGEST val);
95
 
96
/* Partial transfer of a cooked register.  These perform read, modify,
97
   write style operations.  */
98
 
99
void regcache_cooked_read_part (struct regcache *regcache, int regnum,
100
                                int offset, int len, gdb_byte *buf);
101
void regcache_cooked_write_part (struct regcache *regcache, int regnum,
102
                                 int offset, int len, const gdb_byte *buf);
103
 
104
/* Special routines to read/write the PC.  */
105
 
106
extern CORE_ADDR regcache_read_pc (struct regcache *regcache);
107
extern void regcache_write_pc (struct regcache *regcache, CORE_ADDR pc);
108
 
109
/* Transfer a raw register [0..NUM_REGS) between the regcache and the
110
   target.  These functions are called by the target in response to a
111
   target_fetch_registers() or target_store_registers().  */
112
 
113
extern void regcache_raw_supply (struct regcache *regcache,
114
                                 int regnum, const void *buf);
115
extern void regcache_raw_collect (const struct regcache *regcache,
116
                                  int regnum, void *buf);
117
 
118
 
119
/* The type of a register.  This function is slightly more efficient
120
   then its gdbarch vector counterpart since it returns a precomputed
121
   value stored in a table.  */
122
 
123
extern struct type *register_type (struct gdbarch *gdbarch, int regnum);
124
 
125
 
126
/* Return the size of register REGNUM.  All registers should have only
127
   one size.  */
128
 
129
extern int register_size (struct gdbarch *gdbarch, int regnum);
130
 
131
 
132
/* Save/restore a register cache.  The set of registers saved /
133
   restored into the DST regcache determined by the save_reggroup /
134
   restore_reggroup respectively.  COOKED_READ returns zero iff the
135
   register's value can't be returned.  */
136
 
137
typedef int (regcache_cooked_read_ftype) (void *src, int regnum,
138
                                          gdb_byte *buf);
139
 
140
extern void regcache_save (struct regcache *dst,
141
                           regcache_cooked_read_ftype *cooked_read,
142
                           void *cooked_read_context);
143
extern void regcache_restore (struct regcache *dst,
144
                              regcache_cooked_read_ftype *cooked_read,
145
                              void *cooked_read_context);
146
 
147
/* Copy/duplicate the contents of a register cache.  By default, the
148
   operation is pass-through.  Writes to DST and reads from SRC will
149
   go through to the target.
150
 
151
   The ``cpy'' functions can not have overlapping SRC and DST buffers.
152
 
153
   ``no passthrough'' versions do not go through to the target.  They
154
   only transfer values already in the cache.  */
155
 
156
extern struct regcache *regcache_dup (struct regcache *regcache);
157
extern struct regcache *regcache_dup_no_passthrough (struct regcache *regcache);
158
extern void regcache_cpy (struct regcache *dest, struct regcache *src);
159
extern void regcache_cpy_no_passthrough (struct regcache *dest, struct regcache *src);
160
 
161
extern void registers_changed (void);
162
extern void registers_changed_ptid (ptid_t);
163
 
164
#endif /* REGCACHE_H */

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.