linux low: Make the arch code free arch_process_info

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

diff --git a/gdb/gdbserver/regcache.h b/gdb/gdbserver/regcache.h
index 930bd9cbfe6a8b36ee2ebbebfb0f457da6394d01..309de413e33263a1e187338ec7af9ae195d8a865 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) 2001-2017 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,
@@ -14,59 +14,110 @@
    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;
+#include "common-regcache.h"
+
+struct thread_info;
+struct target_desc;
+
+/* 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.  */
 
-void *new_register_cache (void);
+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 (void *regcache);
+void free_register_cache (struct regcache *regcache);
+
+/* Invalidate cached registers for one thread.  */
 
-/* Invalidate cached registers for one or all threads.  */
+void regcache_invalidate_thread (struct thread_info *);
+
+/* Invalidate cached registers for all threads of the given process.  */
+
+void regcache_invalidate_pid (int pid);
+
+/* Invalidate cached registers for all threads of the current
+   process.  */
 
-void regcache_invalidate_one (struct inferior_list_entry *);
 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);
 
-int register_size (int n);
+int find_regno (const struct target_desc *tdesc, const char *name);
 
-int find_regno (const char *name);
+void supply_register (struct regcache *regcache, int n, const void *buf);
 
-extern const char **gdbserver_expedite_regs;
+void supply_register_zeroed (struct regcache *regcache, int n);
 
-void supply_register (int n, const void *buf);
+void supply_register_by_name (struct regcache *regcache,
+                             const char *name, const void *buf);
 
-void supply_register_by_name (const char *name, const void *buf);
+void supply_regblock (struct regcache *regcache, const void *buf);
 
-void collect_register (int n, void *buf);
+void collect_register (struct regcache *regcache, int n, void *buf);
 
-void collect_register_as_string (int n, char *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 */