* sim-regno.h: New file.

* Makefile.in (sim_regno_h): Define.
(d10v-tdep.o, remote-sim.o): Add dependency on $(sim_regno_h).
* remote-sim.c: Include "sim-regno.h" and "gdb_assert.h".
(legacy_register_sim_regno): New function.
(one2one_register_sim_regno): New function.
(gdbsim_fetch_register): Rewrite.
(gdbsim_store_register): Only store a register when
REGISTER_SIM_REGNO is valid.
* d10v-tdep.c: Include "sim-regno.h".
(d10v_ts2_register_sim_regno): Add legacy_regiter_sim_regno check.
(d10v_ts3_register_sim_regno): Ditto.
* gdbarch.sh: Include "sim-regno.h".
(REGISTER_SIM_REGNO): Set default to legacy_register_sim_regno.
* gdbarch.h, gdbarch.c: Regenerate.
* arch-utils.h (default_register_sim_regno): Delete declaration.
* arch-utils.c (default_register_sim_regno): Delete function.

1 files changed, 50 insertions, 0 deletions

diff --git a/gdb/sim-regno.h b/gdb/sim-regno.h
new file mode 100644
index 00000000000..7791ac4c360
--- /dev/null
+++ b/gdb/sim-regno.h
@@ -0,0 +1,50 @@
+/* Generic remote debugging interface for simulators.
+
+   Copyright 2002 Free Software Foundation, Inc.
+
+   Contributed by Red Hat, 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
+   (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, write to the Free Software
+   Foundation, Inc., 59 Temple Place - Suite 330,
+   Boston, MA 02111-1307, USA.  */
+
+#ifndef SIM_REGNO_H
+#define SIM_REGNO_H
+
+/* The REGISTER_SIM_REGNO(REGNUM) method, when there is a
+   corresponding simulator register, returns that register number as a
+   cardinal.  When there is no corresponding register, it returns a
+   negative value.  */
+
+enum sim_regno {
+  /* Normal sane architecture.  The simulator is known to not model
+     this register.  */
+  SIM_REGNO_DOES_NOT_EXIST = -1,
+  /* For possible backward compatibility.  The register cache doesn't
+     have a corresponding name.  Skip the register entirely.  */
+  LEGACY_SIM_REGNO_IGNORE = -2
+};
+
+/* For compatibility with older architectures, returns
+   (LEGACY_SIM_REGNO_IGNORE) when a register doesn't have.  */
+
+extern int legacy_register_sim_regno (int regnum);
+
+/* Treat all raw registers as valid.  */
+
+extern int one2one_register_sim_regno (int regnum);
+
+#endif