/* Register support routines for the remote server for GDB.
- Copyright 2001, 2002 Free Software Foundation, Inc.
+ Copyright (C) 2001-2015 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 2 of the License, or
+ 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,
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, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef REGCACHE_H
#define REGCACHE_H
+#include "common-regcache.h"
+
+struct thread_info;
+struct target_desc;
+
+/* 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
+{
+ /* The regcache's target description. */
+ const struct target_desc *tdesc;
+
+ /* 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,
+ const struct target_desc *tdesc,
+ unsigned char *regbuf);
+
+void regcache_cpy (struct regcache *dst, struct regcache *src);
+
+/* Create a new register cache for INFERIOR. */
+
+struct regcache *new_register_cache (const struct target_desc *tdesc);
+
+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 thread. */
+
+void regcache_invalidate_thread (struct thread_info *);
+
+/* Invalidate cached registers for all threads of the current
+ process. */
+
+void regcache_invalidate (void);
+
+/* Invalidate and release the register cache of all threads of the
+ current process. */
+
+void regcache_release (void);
+
/* Convert all registers to a string in the currently specified remote
format. */
-void registers_to_string (char *buf);
+void registers_to_string (struct regcache *regcache, char *buf);
/* Convert a string to register values and fill our register cache. */
-void registers_from_string (char *buf);
+void registers_from_string (struct regcache *regcache, char *buf);
-/* Return the size in bytes of a string-encoded register packet. */
+/* For regcache_read_pc see common/common-regcache.h. */
-int registers_length (void);
+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);
+struct reg *find_register_by_number (const struct target_desc *tdesc, int n);
+
+int register_cache_size (const struct target_desc *tdesc);
+
+int register_size (const struct target_desc *tdesc, int n);
-char *register_data (int n);
+int find_regno (const struct target_desc *tdesc, const char *name);
-int register_size (int n);
+void supply_register (struct regcache *regcache, int n, const void *buf);
-int find_regno (const char *name);
+void supply_register_zeroed (struct regcache *regcache, int n);
-extern const char **gdbserver_expedite_regs;
+void supply_register_by_name (struct regcache *regcache,
+ const char *name, const void *buf);
-void supply_register (int n, const void *buf);
+void supply_regblock (struct regcache *regcache, const void *buf);
-void supply_register_by_name (const char *name, const void *buf);
+void collect_register (struct regcache *regcache, int n, void *buf);
-void collect_register (int n, void *buf);
+void collect_register_as_string (struct regcache *regcache, int n, char *buf);
-void collect_register_by_name (const char *name, void *buf);
+void collect_register_by_name (struct regcache *regcache,
+ const char *name, void *buf);
#endif /* REGCACHE_H */
projects / deliverable / binutils-gdb.git / blobdiff