1 /* Register support routines for the remote server for GDB.
2 Copyright (C) 2001, 2002, 2007, 2008, 2009, 2010, 2011
3 Free Software Foundation, Inc.
5 This file is part of GDB.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 3 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program. If not, see <http://www.gnu.org/licenses/>. */
23 struct inferior_list_entry
;
26 /* The register exists, it has a value, but we don't know what it is.
27 Used when inspecting traceframes. */
28 #define REG_UNAVAILABLE 0
30 /* We know the register's value (and we have it cached). */
33 /* The data for the register cache. Note that we have one per
34 inferior; this is primarily for simplicity, as the performance
35 benefit is minimal. */
39 /* Whether the REGISTERS buffer's contents are valid. If false, we
40 haven't fetched the registers from the target yet. Not that this
41 register cache is _not_ pass-through, unlike GDB's. Note that
42 "valid" here is unrelated to whether the registers are available
43 in a traceframe. For that, check REGISTER_STATUS below. */
46 unsigned char *registers
;
47 #ifndef IN_PROCESS_AGENT
48 /* One of REG_UNAVAILBLE or REG_VALID. */
49 unsigned char *register_status
;
53 struct regcache
*init_register_cache (struct regcache
*regcache
,
54 unsigned char *regbuf
);
56 void regcache_cpy (struct regcache
*dst
, struct regcache
*src
);
58 /* Create a new register cache for INFERIOR. */
60 struct regcache
*new_register_cache (void);
62 struct regcache
*get_thread_regcache (struct thread_info
*thread
, int fetch
);
64 /* Release all memory associated with the register cache for INFERIOR. */
66 void free_register_cache (struct regcache
*regcache
);
68 /* Invalidate cached registers for one or all threads. */
70 void regcache_invalidate_one (struct inferior_list_entry
*);
71 void regcache_invalidate (void);
73 /* Convert all registers to a string in the currently specified remote
76 void registers_to_string (struct regcache
*regcache
, char *buf
);
78 /* Convert a string to register values and fill our register cache. */
80 void registers_from_string (struct regcache
*regcache
, char *buf
);
82 CORE_ADDR
regcache_read_pc (struct regcache
*regcache
);
84 void regcache_write_pc (struct regcache
*regcache
, CORE_ADDR pc
);
86 /* Return a pointer to the description of register ``n''. */
88 struct reg
*find_register_by_number (int n
);
90 int register_size (int n
);
92 int register_cache_size (void);
94 int find_regno (const char *name
);
96 /* The following two variables are set by auto-generated
97 code in the init_registers_... routines. */
98 extern const char **gdbserver_expedite_regs
;
99 extern const char *gdbserver_xmltarget
;
101 void supply_register (struct regcache
*regcache
, int n
, const void *buf
);
103 void supply_register_zeroed (struct regcache
*regcache
, int n
);
105 void supply_register_by_name (struct regcache
*regcache
,
106 const char *name
, const void *buf
);
108 void supply_regblock (struct regcache
*regcache
, const void *buf
);
110 void collect_register (struct regcache
*regcache
, int n
, void *buf
);
112 void collect_register_as_string (struct regcache
*regcache
, int n
, char *buf
);
114 void collect_register_by_name (struct regcache
*regcache
,
115 const char *name
, void *buf
);
117 #endif /* REGCACHE_H */
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