New Mach stuff:

	* config/i386/i386mach.c: Explain this is for the old (probably
	non-functional and/or obsolete) Mach stuff.
	* m3-nat.c, config/nm-m3.h,
	i386m3-nat.c, mipsm3-nat.c, ns32km3-nat.c,
	config/i386/{i386m3.mh,i386m3.mt,tm-i386m3.h,xm-i386m3.h},
	config/i386/{i386mk.mh,i386mk.mt,tm-i386mk.h,xm-i386mk.h},
	config/mips/{mipsm3.mh,mipsm3.mt,tm-mipsm3.h,xm-mipsm3.h},
	config/ns32k/{ns32km3.mh,ns32km3.mt,tm-ns32km3.h,xm-ns32km3.h}:
	New files.

5 files changed, 117 insertions, 0 deletions

diff --git a/gdb/config/ns32k/.Sanitize b/gdb/config/ns32k/.Sanitize
index bcf00bb..69b0407 100644
--- a/gdb/config/ns32k/.Sanitize
+++ b/gdb/config/ns32k/.Sanitize
@@ -24,11 +24,15 @@ Things-to-keep:
 merlin.mh
 merlin.mt
 nm-umax.h
+ns32km3.mh
+ns32km3.mt
 tm-merlin.h
+tm-ns32km3.h
 tm-umax.h
 umax.mh
 umax.mt
 xm-merlin.h
+xm-ns32km3.h
 xm-umax.h
 
 Things-to-lose:
diff --git a/gdb/config/ns32k/ns32km3.mh b/gdb/config/ns32k/ns32km3.mh
index e69de29..8fff1a3 100644
--- a/gdb/config/ns32k/ns32km3.mh
+++ b/gdb/config/ns32k/ns32km3.mh
@@ -0,0 +1,8 @@
+# Host: ns32k running Mach3
+
+XDEPFILES= os-mach3.o ns32kmach3-xdep.o
+XM_FILE= xm-ns32kmach3.h
+
+# Don't use the mmalloc library in Mach 3.
+MMALLOC_LIB = 
+MMALLOC_DISABLE = -DNO_MMALLOC
diff --git a/gdb/config/ns32k/ns32km3.mt b/gdb/config/ns32k/ns32km3.mt
index e69de29..2e36b83 100644
--- a/gdb/config/ns32k/ns32km3.mt
+++ b/gdb/config/ns32k/ns32km3.mt
@@ -0,0 +1,4 @@
+# Target: ns32k with a.out on Mach 3
+
+TDEPFILES= exec.o ns32k-pinsn.o ns32k-tdep.o 
+TM_FILE= tm-ns32kmach3.h
diff --git a/gdb/config/ns32k/tm-ns32km3.h b/gdb/config/ns32k/tm-ns32km3.h
index e69de29..8055f7a 100644
--- a/gdb/config/ns32k/tm-ns32km3.h
+++ b/gdb/config/ns32k/tm-ns32km3.h
@@ -0,0 +1,64 @@
+/* Macro definitions for ns532, Mach 3.0
+   Copyright (C) 1992 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
+(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.  */
+
+/* Include common definitions for Mach3 systems */
+#include "os-mach3.h"
+
+/* Define offsets to access CPROC stack when it does not have
+ * a kernel thread.
+ */
+#define MACHINE_CPROC_SP_OFFSET 20
+#define MACHINE_CPROC_PC_OFFSET 16
+#define MACHINE_CPROC_FP_OFFSET 12
+
+#include <ns532/psl.h>
+#include <ns532/vmparam.h>
+
+/* Thread flavors used in re-setting the T bit.
+ * @@ this is also bad for cross debugging.
+ */
+#define TRACE_FLAVOR		NS532_THREAD_STATE
+#define TRACE_FLAVOR_SIZE	NS532_THREAD_STATE_COUNT
+#define TRACE_SET(x,state) \
+  	((struct ns532_thread_state *)state)->psr |= PSR_T
+#define TRACE_CLEAR(x,state) \
+  	((((struct ns532_thread_state *)state)->psr &= ~PSR_T), 1)
+
+/* we can do it */
+#define ATTACH_DETACH 1
+
+/* number of traps that happen between exec'ing the shell 
+ * to run an inferior, and when we finally get to 
+ * the inferior code.  This is 2 on most implementations.
+ *
+ * On Mach 3.0 it is the number of exec() system calls before
+ * the task contains the debugged program. It is always 2 when
+ * using the shell to start up the program.
+ */
+#undef  START_INFERIOR_TRAPS_EXPECTED
+#define START_INFERIOR_TRAPS_EXPECTED 2
+
+#define INVALID_FLOAT(p, s) isa_NAN(p, s)
+
+/* Address of end of stack space.
+ * for MACH, see <ns532/vmparam.h>
+ */
+#define STACK_END_ADDR USRSTACK
+
+#include "tm-umax.h"
diff --git a/gdb/config/ns32k/xm-ns32km3.h b/gdb/config/ns32k/xm-ns32km3.h
index e69de29..9300b2e 100644
--- a/gdb/config/ns32k/xm-ns32km3.h
+++ b/gdb/config/ns32k/xm-ns32km3.h
@@ -0,0 +1,37 @@
+/* Definitions to make GDB run on Mach 3 on an National ns32k
+   Copyright (C) 1986, 1987, 1989, 1991 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
+(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.  */
+
+#define HOST_BYTE_ORDER LITTLE_ENDIAN
+
+/* Avoid "INT_MIN redefined" warnings -- by defining it here, exactly
+   the same as in the system <machine/machtypes.h> file.  */
+#undef	INT_MIN
+#define	INT_MIN		0x80000000
+
+/* Get rid of any system-imposed stack limit if possible.  */
+
+#define SET_STACK_LIMIT_HUGE
+
+#define BROKEN_LARGE_ALLOCA
+
+/* Do implement the attach and detach commands.  */
+#define ATTACH_DETACH	1
+
+/* signal.h has declaration for psignal() */
+#define PSIGNAL_IN_SIGNAL_H