Normalize include guards in gdb

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

diff --git a/gdb/gdbserver/regcache.h b/gdb/gdbserver/regcache.h
index 14619759427ccb8c6992cb968897864322e71641..5ee44788dcd32b323331f69a9e78be022202fe6e 100644 (file)
--- a/gdb/gdbserver/regcache.h
+++ b/gdb/gdbserver/regcache.h
@@ -1,6 +1,5 @@
 /* Register support routines for the remote server for GDB.
-   Copyright (C) 2001, 2002, 2007, 2008, 2009, 2010, 2011
-   Free Software Foundation, Inc.
+   Copyright (C) 2001-2019 Free Software Foundation, Inc.
 
    This file is part of GDB.
 
@@ -17,31 +16,58 @@
    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
+#ifndef GDBSERVER_REGCACHE_H
+#define GDBSERVER_REGCACHE_H
+
+#include "common/common-regcache.h"
 
-struct inferior_list_entry;
 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
+struct regcache : public reg_buffer_common
 {
-  int registers_valid;
-  int registers_owned;
-  unsigned char *registers;
+  /* The regcache's target description.  */
+  const struct target_desc *tdesc = nullptr;
+
+  /* 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 = 0;
+  int registers_owned = 0;
+  unsigned char *registers = nullptr;
+#ifndef IN_PROCESS_AGENT
+  /* One of REG_UNAVAILBLE or REG_VALID.  */
+  unsigned char *register_status = nullptr;
+#endif
+
+  /* See common/common-regcache.h.  */
+  enum register_status get_register_status (int regnum) const override;
+
+  /* See common/common-regcache.h.  */
+  void raw_supply (int regnum, const void *buf) override;
+
+  /* See common/common-regcache.h.  */
+  void raw_collect (int regnum, void *buf) const override;
+
+  /* See common/common-regcache.h.  */
+  bool raw_compare (int regnum, const void *buf, int offset) const override;
 };
 
 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 (void);
+struct regcache *new_register_cache (const struct target_desc *tdesc);
 
 struct regcache *get_thread_regcache (struct thread_info *thread, int fetch);
 
@@ -49,11 +75,24 @@ struct regcache *get_thread_regcache (struct thread_info *thread, int fetch);
 
 void free_register_cache (struct regcache *regcache);
 
-/* Invalidate cached registers for one or all threads.  */
+/* Invalidate cached registers for one thread.  */
+
+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.  */
 
@@ -63,36 +102,40 @@ void registers_to_string (struct regcache *regcache, char *buf);
 
 void registers_from_string (struct regcache *regcache, char *buf);
 
-CORE_ADDR regcache_read_pc (struct regcache *regcache);
+/* For regcache_read_pc see common/common-regcache.h.  */
 
 void regcache_write_pc (struct regcache *regcache, CORE_ADDR pc);
 
-/* Return a pointer to the description of register ``n''.  */
+int register_cache_size (const struct target_desc *tdesc);
 
-struct reg *find_register_by_number (int n);
+int register_size (const struct target_desc *tdesc, 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;
+int find_regno (const struct target_desc *tdesc, const char *name);
 
 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_by_name_zeroed (struct regcache *regcache,
+                                    const char *name);
+
 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);
+void collect_register_by_name (struct regcache *regcache,
+                              const char *name, void *buf);
+
+/* Read a raw register as an unsigned integer.  Convenience wrapper
+   around regcache_raw_get_unsigned that takes a register name instead
+   of a register number.  */
+
+ULONGEST regcache_raw_get_unsigned_by_name (struct regcache *regcache,
+                                           const char *name);
 
-#endif /* REGCACHE_H */
+#endif /* GDBSERVER_REGCACHE_H */