1 /* Cache and manage the values of registers for GDB, the GNU debugger.
3 Copyright 1986, 1987, 1989, 1991, 1994, 1995, 1996, 1998, 2000,
4 2001, 2002 Free Software Foundation, Inc.
6 This file is part of GDB.
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.
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.
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. */
29 extern struct regcache
*current_regcache
;
31 void regcache_xfree (struct regcache
*regcache
);
32 struct cleanup
*make_cleanup_regcache_xfree (struct regcache
*regcache
);
33 struct regcache
*regcache_xmalloc (struct gdbarch
*gdbarch
);
35 /* Transfer a raw register [0..NUM_REGS) between core-gdb and the
38 void regcache_raw_read (struct regcache
*regcache
, int rawnum
, void *buf
);
39 void regcache_raw_write (struct regcache
*regcache
, int rawnum
,
41 extern void regcache_raw_read_signed (struct regcache
*regcache
,
42 int regnum
, LONGEST
*val
);
43 extern void regcache_raw_read_unsigned (struct regcache
*regcache
,
44 int regnum
, ULONGEST
*val
);
45 int regcache_valid_p (struct regcache
*regcache
, int regnum
);
47 /* Transfer a cooked register [0..NUM_REGS+NUM_PSEUDO_REGS). */
48 void regcache_cooked_read (struct regcache
*regcache
, int rawnum
, void *buf
);
49 void regcache_cooked_write (struct regcache
*regcache
, int rawnum
,
52 /* NOTE: cagney/2002-08-13: At present GDB has no reliable mechanism
53 for indicating when a ``cooked'' register was constructed from
54 invalid or unavailable ``raw'' registers. One fairly easy way of
55 adding such a mechanism would be for the cooked functions to return
56 a register valid indication. Given the possibility of such a
57 change, the extract functions below use a reference parameter,
58 rather than a function result. */
60 /* Read a register as a signed/unsigned quantity. */
61 extern void regcache_cooked_read_signed (struct regcache
*regcache
,
62 int regnum
, LONGEST
*val
);
63 extern void regcache_cooked_read_unsigned (struct regcache
*regcache
,
64 int regnum
, ULONGEST
*val
);
66 /* Transfer a raw register [0..NUM_REGS) between the regcache and the
67 target. These functions are called by the target in response to a
68 target_fetch_registers() or target_store_registers(). */
70 extern void supply_register (int regnum
, const void *val
);
71 extern void regcache_collect (int regnum
, void *buf
);
74 /* DEPRECATED: Character array containing an image of the inferior
75 programs' registers for the most recently referenced thread. */
77 extern char *registers
;
79 /* DEPRECATED: Character array containing the current state of each
80 register (unavailable<0, invalid=0, valid>0) for the most recently
83 extern signed char *register_valid
;
85 /* Copy/duplicate the contents of a register cache. By default, the
86 operation is pass-through. Writes to DST and reads from SRC will
87 go through to the target.
89 The ``cpy'' functions can not have overlapping SRC and DST buffers.
91 ``no passthrough'' versions do not go through to the target. They
92 only transfer values already in the cache. */
94 extern struct regcache
*regcache_dup (struct regcache
*regcache
);
95 extern struct regcache
*regcache_dup_no_passthrough (struct regcache
*regcache
);
96 extern void regcache_cpy (struct regcache
*dest
, struct regcache
*src
);
97 extern void regcache_cpy_no_passthrough (struct regcache
*dest
, struct regcache
*src
);
99 extern char *deprecated_grub_regcache_for_registers (struct regcache
*);
100 extern char *deprecated_grub_regcache_for_register_valid (struct regcache
*);
102 extern int register_cached (int regnum
);
104 extern void set_register_cached (int regnum
, int state
);
106 extern void register_changed (int regnum
);
108 extern void registers_changed (void);
110 extern void registers_fetched (void);
112 extern void read_register_bytes (int regbyte
, char *myaddr
, int len
);
114 extern void read_register_gen (int regnum
, char *myaddr
);
116 extern void write_register_gen (int regnum
, char *myaddr
);
118 extern void write_register_bytes (int regbyte
, char *myaddr
, int len
);
120 /* Rename to read_unsigned_register()? */
121 extern ULONGEST
read_register (int regnum
);
123 /* Rename to read_unsigned_register_pid()? */
124 extern ULONGEST
read_register_pid (int regnum
, ptid_t ptid
);
126 extern LONGEST
read_signed_register (int regnum
);
128 extern LONGEST
read_signed_register_pid (int regnum
, ptid_t ptid
);
130 extern void write_register (int regnum
, LONGEST val
);
132 extern void write_register_pid (int regnum
, CORE_ADDR val
, ptid_t ptid
);
134 #endif /* REGCACHE_H */
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