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 regcache *regcache_xmalloc (struct gdbarch *gdbarch);
34 /* Transfer a raw register [0..NUM_REGS) between core-gdb and the
37 void regcache_read (struct regcache *regcache, int rawnum, char *buf);
38 void regcache_write (struct regcache *regcache, int rawnum, char *buf);
39 int regcache_valid_p (struct regcache *regcache, int regnum);
40 CORE_ADDR regcache_read_as_address (struct regcache *regcache, int rawnum);
42 /* Transfer a raw register [0..NUM_REGS) between the regcache and the
43 target. These functions are called by the target in response to a
44 target_fetch_registers() or target_store_registers(). */
46 extern void supply_register (int regnum, char *val);
47 extern void regcache_collect (int regnum, void *buf);
50 /* DEPRECATED: Character array containing an image of the inferior
51 programs' registers for the most recently referenced thread. */
53 extern char *registers;
55 /* DEPRECATED: Character array containing the current state of each
56 register (unavailable<0, invalid=0, valid>0) for the most recently
59 extern signed char *register_valid;
61 /* Save/restore the register cache using the regbuf. The operation is
62 write through - it is strictly for code that needs to restore the
63 target's registers to a previous state.
65 ``no passthrough'' versions do not go through to the target. They
66 only save values already in the cache. */
68 extern void regcache_save (struct regcache *regcache);
69 extern void regcache_restore (struct regcache *regcache);
70 extern struct regcache *regcache_dup (struct regcache *regcache);
71 extern void regcache_save_no_passthrough (struct regcache *regcache);
72 extern void regcache_restore_no_passthrough (struct regcache *regcache);
73 extern struct regcache *regcache_dup_no_passthrough (struct regcache *regcache);
74 extern void regcache_cpy (struct regcache *dest, struct regcache *src);
75 extern void regcache_cpy_no_passthrough (struct regcache *dest, struct regcache *src);
77 extern char *deprecated_grub_regcache_for_registers (struct regcache *);
78 extern char *deprecated_grub_regcache_for_register_valid (struct regcache *);
80 extern int register_cached (int regnum);
82 extern void set_register_cached (int regnum, int state);
84 extern void register_changed (int regnum);
86 extern void registers_changed (void);
88 extern void registers_fetched (void);
90 extern void read_register_bytes (int regbyte, char *myaddr, int len);
92 extern void read_register_gen (int regnum, char *myaddr);
94 extern void write_register_gen (int regnum, char *myaddr);
96 extern void write_register_bytes (int regbyte, char *myaddr, int len);
98 /* Rename to read_unsigned_register()? */
99 extern ULONGEST read_register (int regnum);
101 /* Rename to read_unsigned_register_pid()? */
102 extern ULONGEST read_register_pid (int regnum, ptid_t ptid);
104 extern LONGEST read_signed_register (int regnum);
106 extern LONGEST read_signed_register_pid (int regnum, ptid_t ptid);
108 extern void write_register (int regnum, LONGEST val);
110 extern void write_register_pid (int regnum, CORE_ADDR val, ptid_t ptid);
112 #endif /* REGCACHE_H */