* rs6000-pinsn.c, rs6000-tdep.c, rs6000-xdep.c, tm-rs6000.h,

xm-rs6000.h:  New files.
* xcoffexec.c:  New file for handling AIX shared libraries.

gdb/xm-rs6000.h

@@ -0,0 +1,67 @@
+/* Parameters for hosting on an RS6000, for GDB, the GNU debugger.
+   Copyright (C) 1986, 1987, 1989, 1991 Free Software Foundation, Inc.
+   Contributed by IBM Corporation.
+
+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., 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+/* Big end is at the low address */
+
+#define	HOST_BYTE_ORDER	BIG_ENDIAN
+
+#define	HAVE_TERMIO 1
+#define	USG 1
+#define	HAVE_SIGSETMASK	1
+
+/* This system requires that we open a terminal with O_NOCTTY for it to
+   not become our controlling terminal.  */
+
+#define	USE_O_NOCTTY
+
+/* Get rid of any system-imposed stack limit if possible.  */
+
+#define SET_STACK_LIMIT_HUGE
+
+/* Brain death inherited from PC's pervades.  */
+#undef NULL
+#define NULL 0
+
+/* The IBM compiler requires this in order to properly compile alloca().  */
+#pragma alloca
+
+#define	vfork	fork
+
+/* Do implement the attach and detach commands.  */
+
+#define ATTACH_DETACH
+
+/* Override copies of {fetch,store}_inferior_registers in infptrace.c.  */
+
+#define FETCH_INFERIOR_REGISTERS
+
+/* Setpgrp() takes arguments, unlike ordinary Sys V's.  */
+
+#define	SETPGRP_ARGS
+
+/* RS6000/AIXCOFF does not support PT_STEP. Has to be simulated. */
+
+#define NO_SINGLE_STEP
+
+/* Interface between xcoff symbol reading code and AIX shared library
+   handling code.  FIXME, this probably needs generalizing.  */
+
+#define XCOFF_INIT_LOADINFO()	xcoff_init_loadinfo()
+#define XCOFF_ADD_TOC_TO_LOADINFO(x)	xcoff_add_toc_to_loadinfo (x)