Rename 32- and 64-bit Intel files from "i386" to "x86"

This commit renames nine files that contain code used by both 32- and
64-bit Intel ports such that their names are prefixed with "x86"
rather than "i386".  All types, functions and variables within these
files are likewise renamed such that their names are prefixed with
"x86" rather than "i386".  This makes GDB follow the convention used
by gdbserver such that 32-bit Intel code lives in files called
"i386-*", 64-bit Intel code lives in files called "amd64-*", and code
for both 32- and 64-bit Intel lives in files called "x86-*".

This commit only renames OS-independent files.  The Linux ports of
both GDB and gdbserver now follow the i386/amd64/x86 convention fully.
Some ports still use the old convention where "i386" in file/function/
type/variable names can mean "32-bit only" or "32- and 64-bit" but I
don't want to touch ports I can't fully test except where absolutely
necessary.

gdb/ChangeLog:

	* i386-nat.h: Renamed as...
	* x86-nat.h: New file.  All type, function and variable name
	prefixes changed from "i386_" to "x86_".  All references updated.
	* i386-nat.c: Renamed as...
	* x86-nat.c: New file.  All type, function and variable name
	prefixes changed from "i386_" to "x86_".  All references updated.
	* common/i386-xstate.h: Renamed as...
	* common/x86-xstate.h: New file.  All type, function and variable
	name prefixes changed from "i386_" to "x86_".  All references
	updated.
	* nat/i386-cpuid.h: Renamed as...
	* nat/x86-cpuid.h: New file.  All type, function and variable name
	prefixes changed from "i386_" to "x86_".  All references updated.
	* nat/i386-gcc-cpuid.h: Renamed as...
	* nat/x86-gcc-cpuid.h: New file.  All type, function and variable
	name prefixes changed from "i386_" to "x86_".  All references
	updated.
	* nat/i386-dregs.h: Renamed as...
	* nat/x86-dregs.h: New file.  All type, function and variable name
	prefixes changed from "i386_" to "x86_".  All references updated.
	* nat/i386-dregs.c: Renamed as...
	* nat/x86-dregs.c: New file.  All type, function and variable name
	prefixes changed from "i386_" to "x86_".  All references updated.

gdb/gdbserver/ChangeLog:

	* i386-low.h: Renamed as...
	* x86-low.h: New file.  All type, function and variable name
	prefixes changed from "i386_" to "x86_".  All references updated.
	* i386-low.c: Renamed as...
	* x86-low.c: New file.  All type, function and variable name
	prefixes changed from "i386_" to "x86_".  All references updated.

1 files changed, 57 insertions, 0 deletions

diff --git a/gdb/x86-nat.h b/gdb/x86-nat.h
new file mode 100644
index 00000000000..df5e9f2d2e2
--- /dev/null
+++ b/gdb/x86-nat.h
@@ -0,0 +1,57 @@
+/* Native-dependent code for x86 (i386 and x86-64).
+
+   Low level functions to implement Oeprating System specific
+   code to manipulate x86 debug registers.
+
+   Copyright (C) 2009-2014 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 3 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, see <http://www.gnu.org/licenses/>.  */
+
+#ifndef X86_NAT_H
+#define X86_NAT_H 1
+
+#include "nat/x86-dregs.h"
+
+/* Hardware-assisted breakpoints and watchpoints.  */
+
+/* Add watchpoint methods to the provided target_ops.  
+   Targets using x86 family debug registers for watchpoints should call
+   this.  */
+struct target_ops;
+extern void x86_use_watchpoints (struct target_ops *);
+
+/* Use this function to set x86_dr_low debug_register_length field
+   rather than setting it directly to check that the length is only
+   set once.  It also enables the 'maint set/show show-debug-regs' 
+   command.  */
+
+extern void x86_set_debug_register_length (int len);
+
+/* Use this function to reset the x86-nat.c debug register state.  */
+
+extern void x86_cleanup_dregs (void);
+
+/* Return a pointer to the local mirror of the debug registers of
+   process PID.  */
+
+extern struct x86_debug_reg_state *x86_debug_reg_state (pid_t pid);
+
+/* Called whenever GDB is no longer debugging process PID.  It deletes
+   data structures that keep track of debug register state.  */
+
+extern void x86_forget_process (pid_t pid);
+
+#endif /* X86_NAT_H */