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4e052eda | 1 | /* Cache and manage the values of registers for GDB, the GNU debugger. |
3fadccb3 AC |
2 | |
3 | Copyright 1986, 1987, 1989, 1991, 1994, 1995, 1996, 1998, 2000, | |
4 | 2001, 2002 Free Software Foundation, Inc. | |
4e052eda AC |
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 2 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, write to the Free Software | |
20 | Foundation, Inc., 59 Temple Place - Suite 330, | |
21 | Boston, MA 02111-1307, USA. */ | |
22 | ||
23 | #ifndef REGCACHE_H | |
24 | #define REGCACHE_H | |
25 | ||
3fadccb3 AC |
26 | struct regcache; |
27 | struct gdbarch; | |
28 | ||
29 | extern struct regcache *current_regcache; | |
30 | ||
31 | void regcache_xfree (struct regcache *regcache); | |
36160dc4 | 32 | struct cleanup *make_cleanup_regcache_xfree (struct regcache *regcache); |
3fadccb3 AC |
33 | struct regcache *regcache_xmalloc (struct gdbarch *gdbarch); |
34 | ||
61a0eb5b AC |
35 | /* Transfer a raw register [0..NUM_REGS) between core-gdb and the |
36 | regcache. */ | |
37 | ||
1aaa5f99 AC |
38 | void regcache_raw_read (struct regcache *regcache, int rawnum, void *buf); |
39 | void regcache_raw_write (struct regcache *regcache, int rawnum, | |
40 | const void *buf); | |
3fadccb3 | 41 | int regcache_valid_p (struct regcache *regcache, int regnum); |
61a0eb5b | 42 | |
68365089 AC |
43 | /* Transfer a cooked register [0..NUM_REGS+NUM_PSEUDO_REGS). */ |
44 | void regcache_cooked_read (struct regcache *regcache, int rawnum, void *buf); | |
45 | void regcache_cooked_write (struct regcache *regcache, int rawnum, | |
46 | const void *buf); | |
47 | ||
a378f419 AC |
48 | /* NOTE: cagney/2002-08-13: At present GDB has no reliable mechanism |
49 | for indicating when a ``cooked'' register was constructed from | |
50 | invalid or unavailable ``raw'' registers. One fairly easy way of | |
51 | adding such a mechanism would be for the cooked functions to return | |
52 | a register valid indication. Given the possibility of such a | |
53 | change, the extract functions below use a reference parameter, | |
54 | rather than a function result. */ | |
55 | ||
56 | /* Read a register as a signed/unsigned quantity. */ | |
57 | extern void regcache_cooked_read_signed (struct regcache *regcache, | |
58 | int regnum, LONGEST *val); | |
59 | extern void regcache_cooked_read_unsigned (struct regcache *regcache, | |
60 | int regnum, ULONGEST *val); | |
61 | ||
193cb69f AC |
62 | /* Transfer a raw register [0..NUM_REGS) between the regcache and the |
63 | target. These functions are called by the target in response to a | |
64 | target_fetch_registers() or target_store_registers(). */ | |
65 | ||
1aaa5f99 | 66 | extern void supply_register (int regnum, const void *val); |
193cb69f AC |
67 | extern void regcache_collect (int regnum, void *buf); |
68 | ||
69 | ||
61a0eb5b AC |
70 | /* DEPRECATED: Character array containing an image of the inferior |
71 | programs' registers for the most recently referenced thread. */ | |
4e052eda AC |
72 | |
73 | extern char *registers; | |
74 | ||
61a0eb5b AC |
75 | /* DEPRECATED: Character array containing the current state of each |
76 | register (unavailable<0, invalid=0, valid>0) for the most recently | |
77 | referenced thread. */ | |
4e052eda AC |
78 | |
79 | extern signed char *register_valid; | |
80 | ||
37e71372 AC |
81 | /* Copy/duplicate the contents of a register cache. By default, the |
82 | operation is pass-through. Writes to DST and reads from SRC will | |
83 | go through to the target. | |
84 | ||
85 | The ``cpy'' functions can not have overlapping SRC and DST buffers. | |
3fadccb3 AC |
86 | |
87 | ``no passthrough'' versions do not go through to the target. They | |
37e71372 | 88 | only transfer values already in the cache. */ |
3fadccb3 | 89 | |
3fadccb3 | 90 | extern struct regcache *regcache_dup (struct regcache *regcache); |
3fadccb3 AC |
91 | extern struct regcache *regcache_dup_no_passthrough (struct regcache *regcache); |
92 | extern void regcache_cpy (struct regcache *dest, struct regcache *src); | |
93 | extern void regcache_cpy_no_passthrough (struct regcache *dest, struct regcache *src); | |
94 | ||
95 | extern char *deprecated_grub_regcache_for_registers (struct regcache *); | |
96 | extern char *deprecated_grub_regcache_for_register_valid (struct regcache *); | |
97 | ||
4e052eda AC |
98 | extern int register_cached (int regnum); |
99 | ||
100 | extern void set_register_cached (int regnum, int state); | |
101 | ||
102 | extern void register_changed (int regnum); | |
103 | ||
4e052eda AC |
104 | extern void registers_changed (void); |
105 | ||
106 | extern void registers_fetched (void); | |
107 | ||
108 | extern void read_register_bytes (int regbyte, char *myaddr, int len); | |
109 | ||
110 | extern void read_register_gen (int regnum, char *myaddr); | |
111 | ||
112 | extern void write_register_gen (int regnum, char *myaddr); | |
113 | ||
114 | extern void write_register_bytes (int regbyte, char *myaddr, int len); | |
115 | ||
116 | /* Rename to read_unsigned_register()? */ | |
117 | extern ULONGEST read_register (int regnum); | |
118 | ||
119 | /* Rename to read_unsigned_register_pid()? */ | |
39f77062 | 120 | extern ULONGEST read_register_pid (int regnum, ptid_t ptid); |
4e052eda AC |
121 | |
122 | extern LONGEST read_signed_register (int regnum); | |
123 | ||
39f77062 | 124 | extern LONGEST read_signed_register_pid (int regnum, ptid_t ptid); |
4e052eda AC |
125 | |
126 | extern void write_register (int regnum, LONGEST val); | |
127 | ||
39f77062 | 128 | extern void write_register_pid (int regnum, CORE_ADDR val, ptid_t ptid); |
4e052eda | 129 | |
4e052eda | 130 | #endif /* REGCACHE_H */ |