| /* Register support routines for the remote server for GDB. |
| Copyright (C) 2001-2013 Free Software Foundation, Inc. |
| |
| This file is part of GDB. |
| |
| This program is free software; you can redistribute it and/or modify |
| it under the terms of the GNU General Public License as published by |
| the Free Software Foundation; either version 3 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| GNU General Public License for more details. |
| |
| You should have received a copy of the GNU General Public License |
| along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| |
| #ifndef REGCACHE_H |
| #define REGCACHE_H |
| |
| struct inferior_list_entry; |
| struct thread_info; |
| |
| /* The register exists, it has a value, but we don't know what it is. |
| Used when inspecting traceframes. */ |
| #define REG_UNAVAILABLE 0 |
| |
| /* We know the register's value (and we have it cached). */ |
| #define REG_VALID 1 |
| |
| /* The data for the register cache. Note that we have one per |
| inferior; this is primarily for simplicity, as the performance |
| benefit is minimal. */ |
| |
| struct regcache |
| { |
| /* Whether the REGISTERS buffer's contents are valid. If false, we |
| haven't fetched the registers from the target yet. Not that this |
| register cache is _not_ pass-through, unlike GDB's. Note that |
| "valid" here is unrelated to whether the registers are available |
| in a traceframe. For that, check REGISTER_STATUS below. */ |
| int registers_valid; |
| int registers_owned; |
| unsigned char *registers; |
| #ifndef IN_PROCESS_AGENT |
| /* One of REG_UNAVAILBLE or REG_VALID. */ |
| unsigned char *register_status; |
| #endif |
| }; |
| |
| struct regcache *init_register_cache (struct regcache *regcache, |
| unsigned char *regbuf); |
| |
| void regcache_cpy (struct regcache *dst, struct regcache *src); |
| |
| /* Create a new register cache for INFERIOR. */ |
| |
| struct regcache *new_register_cache (void); |
| |
| struct regcache *get_thread_regcache (struct thread_info *thread, int fetch); |
| |
| /* Release all memory associated with the register cache for INFERIOR. */ |
| |
| void free_register_cache (struct regcache *regcache); |
| |
| /* Invalidate cached registers for one or all threads. */ |
| |
| void regcache_invalidate_one (struct inferior_list_entry *); |
| void regcache_invalidate (void); |
| |
| /* Convert all registers to a string in the currently specified remote |
| format. */ |
| |
| void registers_to_string (struct regcache *regcache, char *buf); |
| |
| /* Convert a string to register values and fill our register cache. */ |
| |
| void registers_from_string (struct regcache *regcache, char *buf); |
| |
| CORE_ADDR regcache_read_pc (struct regcache *regcache); |
| |
| void regcache_write_pc (struct regcache *regcache, CORE_ADDR pc); |
| |
| /* Return a pointer to the description of register ``n''. */ |
| |
| struct reg *find_register_by_number (int n); |
| |
| int register_size (int n); |
| |
| int register_cache_size (void); |
| |
| int find_regno (const char *name); |
| |
| /* The following two variables are set by auto-generated |
| code in the init_registers_... routines. */ |
| extern const char **gdbserver_expedite_regs; |
| extern const char *gdbserver_xmltarget; |
| |
| void supply_register (struct regcache *regcache, int n, const void *buf); |
| |
| void supply_register_zeroed (struct regcache *regcache, int n); |
| |
| void supply_register_by_name (struct regcache *regcache, |
| const char *name, const void *buf); |
| |
| void supply_regblock (struct regcache *regcache, const void *buf); |
| |
| void collect_register (struct regcache *regcache, int n, void *buf); |
| |
| void collect_register_as_string (struct regcache *regcache, int n, char *buf); |
| |
| void collect_register_by_name (struct regcache *regcache, |
| const char *name, void *buf); |
| |
| #endif /* REGCACHE_H */ |