PR gdb/14290:

[deliverable/binutils-gdb.git] / gdb / gdbserver / regcache.h

diff --git a/gdb/gdbserver/regcache.h b/gdb/gdbserver/regcache.h
index 1b3b926a2c0cbe09798797311f809236bf79de8c..d52012cc868d11e1cd719500fbf3a99edf137526 100644 (file)
--- a/gdb/gdbserver/regcache.h
+++ b/gdb/gdbserver/regcache.h
@@ -1,11 +1,11 @@
 /* Register support routines for the remote server for GDB.
-   Copyright 2001, 2002 Free Software Foundation, Inc.
+   Copyright (C) 2001-2002, 2007-2012 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,
@@ -14,52 +14,103 @@
    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
 
+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.  */
 
-void create_register_cache (struct inferior_info *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 inferior_info *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 (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.  */
+CORE_ADDR regcache_read_pc (struct regcache *regcache);
 
-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);
 
-char *register_data (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_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 */