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, 132 insertions, 0 deletions

diff --git a/gdb/config/mips/.Sanitize b/gdb/config/mips/.Sanitize
index 194dc94..541def5 100644
--- a/gdb/config/mips/.Sanitize
+++ b/gdb/config/mips/.Sanitize
@@ -31,6 +31,8 @@ irix3.mt
 irix4.mh
 littlemips.mh
 littlemips.mt
+mipsm3.mh
+mipsm3.mt
 news-mips.mh
 nm-irix3.h
 nm-irix4.h
@@ -41,10 +43,12 @@ riscos.mh
 tm-bigmips.h
 tm-irix3.h
 tm-mips.h
+tm-mipsm3.h
 xm-irix3.h
 xm-irix4.h
 xm-makeva.h
 xm-mips.h
+xm-mipsm3.h
 xm-news-mips.h
 xm-riscos.h
 
diff --git a/gdb/config/mips/mipsm3.mh b/gdb/config/mips/mipsm3.mh
index e69de29..51a692b 100644
--- a/gdb/config/mips/mipsm3.mh
+++ b/gdb/config/mips/mipsm3.mh
@@ -0,0 +1,9 @@
+# Host: Little endian MIPS machine such as pmax
+# running Mach 3.0 operating system
+
+XDEPFILES= os-mach3.o mipsmach3-xdep.o coredep.o
+XM_FILE= xm-mipsmach3.h
+
+# Don't use the mmalloc library in Mach 3.
+MMALLOC_LIB = 
+MMALLOC_DISABLE = -DNO_MMALLOC
diff --git a/gdb/config/mips/mipsm3.mt b/gdb/config/mips/mipsm3.mt
index e69de29..22a240f 100644
--- a/gdb/config/mips/mipsm3.mt
+++ b/gdb/config/mips/mipsm3.mt
@@ -0,0 +1,4 @@
+# Target: Little-endian MIPS machine such as pmax
+# running Mach 3.0 operating system
+TDEPFILES= mips-pinsn.o mips-tdep.o mipsread.o exec.o
+TM_FILE= tm-mipsmach3.h
diff --git a/gdb/config/mips/tm-mipsm3.h b/gdb/config/mips/tm-mipsm3.h
index e69de29..27a03dc 100644
--- a/gdb/config/mips/tm-mipsm3.h
+++ b/gdb/config/mips/tm-mipsm3.h
@@ -0,0 +1,79 @@
+/* Definitions to make GDB run on a mips box under 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.  */
+
+/* Mach specific definitions for little endian mips (e.g. pmax)
+ * running Mach 3.0
+ *
+ * Author: Jukka Virtanen <jtv@hut.fi>
+ */
+
+/* Include common definitions for Mach3 systems */
+#include "os-mach3.h"
+
+/* Define offsets to access CPROC stack when it does not have
+ * a kernel thread.
+ */
+
+/* From mk/user/threads/mips/csw.s */
+#define SAVED_FP	(12*4)
+#define SAVED_PC	(13*4)
+#define SAVED_BYTES	(14*4)
+
+/* Using these, define our offsets to items strored in
+ * cproc_switch in csw.s
+ */
+#define MACHINE_CPROC_SP_OFFSET SAVED_BYTES
+#define MACHINE_CPROC_PC_OFFSET SAVED_PC
+#define MACHINE_CPROC_FP_OFFSET SAVED_FP
+
+/* Thread flavors used in setting the Trace state.
+ *
+ * In <mach/machine/thread_status.h>
+ */
+#define TRACE_FLAVOR		MIPS_EXC_STATE
+#define TRACE_FLAVOR_SIZE	MIPS_EXC_STATE_COUNT
+#define TRACE_SET(x,state)	((struct mips_exc_state *)state)->cause = EXC_SST;
+#define TRACE_CLEAR(x,state)	0
+
+/* Mach supports attach/detach */
+#define ATTACH_DETACH 1
+
+#include "tm-mips.h"
+
+/*
+ * On Mach 3.0 this 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
+
+/* Address of end of user stack space.
+ * for MACH, see <machine/vmparam.h>
+ */
+#undef  STACK_END_ADDR
+#define STACK_END_ADDR USRSTACK
+
+/* Don't output r?? names for registers, since they
+ * can't be used as reg names anyway
+ */
+#define NUMERIC_REG_NAMES
+
+/* Output registers in tabular format */
+#define TABULAR_REGISTER_OUTPUT
diff --git a/gdb/config/mips/xm-mipsm3.h b/gdb/config/mips/xm-mipsm3.h
index e69de29..17ba086 100644
--- a/gdb/config/mips/xm-mipsm3.h
+++ b/gdb/config/mips/xm-mipsm3.h
@@ -0,0 +1,36 @@
+/* Definitions to make GDB run on a mips box under 4.3bsd.
+   Copyright (C) 1986, 1987, 1989 Free Software Foundation, Inc.
+   Contributed by Per Bothner(bothner@cs.wisc.edu) at U.Wisconsin
+   and by Alessandro Forin(af@cs.cmu.edu) at CMU
+
+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.  */
+
+#if !defined (HOST_BYTE_ORDER)
+#define HOST_BYTE_ORDER LITTLE_ENDIAN
+#endif
+
+/* Get rid of any system-imposed stack limit if possible */
+
+#define	SET_STACK_LIMIT_HUGE
+
+#define KERNEL_U_ADDR 0 /* Not needed. */
+
+/* Only used for core files on DECstations. */
+
+#define REGISTER_U_ADDR(addr, blockend, regno) 		\
+	if (regno < 38) addr = (NBPG*UPAGES) + (regno - 38)*sizeof(int);\
+	else addr = 0; /* ..somewhere in the pcb */