20000317 sourceware import

46 files changed, 10907 insertions, 0 deletions

diff --git a/libgloss/sparc/Makefile.in b/libgloss/sparc/Makefile.in
new file mode 100644
index 0000000..fcf5448
--- /dev/null
+++ b/libgloss/sparc/Makefile.in
@@ -0,0 +1,286 @@
+# Copyright (c) 1995, 1996, 1997 Cygnus Support
+#
+# The authors hereby grant permission to use, copy, modify, distribute,
+# and license this software and its documentation for any purpose, provided
+# that existing copyright notices are retained in all copies and that this
+# notice is included verbatim in any distributions. No written agreement,
+# license, or royalty fee is required for any of the authorized uses.
+# Modifications to this software may be copyrighted by their authors
+# and need not follow the licensing terms described here, provided that
+# the new terms are clearly indicated on the first page of each file where
+# they apply.
+
+# Makefile for libgloss/sparc. This is the board support
+# code for the various sparc targets.
+
+VPATH = @srcdir@
+srcdir = @srcdir@
+objdir = .
+srcroot = $(srcdir)/../..
+objroot = $(objdir)/../..
+
+prefix = @prefix@
+exec_prefix = @exec_prefix@
+
+host_alias = @host_alias@
+target_alias = @target_alias@
+
+bindir = @bindir@
+libdir = @libdir@
+tooldir = $(exec_prefix)/$(target_alias)
+
+# Multilib support variables.
+# TOP is used instead of MULTI{BUILD,SRC}TOP.
+MULTIDIRS =
+MULTISUBDIR =
+MULTIDO = true
+MULTICLEAN = true
+
+INSTALL = @INSTALL@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+INSTALL_DATA = @INSTALL_DATA@
+
+SHELL = /bin/sh
+
+CC = @CC@
+
+AS = @AS@
+AR = @AR@
+LD = @LD@
+RANLIB = @RANLIB@
+AR_FLAGS = qrv
+
+OBJDUMP = `if [ -f ${objroot}/../binutils/objdump ] ; \
+	then echo ${objroot}/../binutils/objdump ; \
+	else t='$(program_transform_name)'; echo objdump | sed -e $$t ; fi`
+OBJCOPY = `if [ -f ${objroot}/../binutils/objcopy ] ; \
+	then echo ${objroot}/../binutils/objcopy ; \
+	else t='$(program_transform_name)'; echo objcopy | sed -e $$t ; fi`
+
+CYGMON_CRT0 = cygmon-crt0.o
+CYGMON_BSP = libcygmon.a
+CYGMON_OBJS = cygmon-salib.o
+
+701_CRT0 = crt0-701.o
+701_BSP = libsplet701.a
+701_OBJS = sysc-701.o salib-701.o sparclet-stub.o
+
+930_BSP = libslite930.a
+931_BSP = libslite931.a
+934_BSP = libslite934.a
+86X_BSP = libslite86x.a
+
+# for the time being, built the stub without hardware breakpoint support
+SLITE_OBJS = salib.o sparcl-stub.o cache.o
+
+# ERC32: SIS simulator, see sim/erc32.
+ERC32_CRT0 = erc32-crt0.o
+ERC32_BSP = liberc32.a
+ERC32_OBJS = erc32-io.o traps.o erc32-stub.o debug.o fixctors.o
+ERC32_ALL = $(ERC32_CRT0) $(ERC32_BSP)
+
+CRT0 = crt0.o
+OBJS = close.o fstat.o getpid.o isatty.o kill.o \
+	lseek.o open.o print.o putnum.o read.o sbrk.o stat.o \
+	unlink.o write.o
+
+# This is set to one of SPARC, SLITE, or SPLET by configure.
+# It's not clear what to do here.
+# One could certainly build everything.  The assembler supports all cpu
+# variants (via runtime switches).  However, the compiler [currently] doesn't.
+# Of course, it may be the case that there isn't any cpu specific code in
+# C source files, but there might be in the future.
+CPU = @CPU@
+
+# sparc stuff (not sparclite or sparclet)
+SPARC_ALL = $(CYGMON_BSP) $(CYGMON_CRT0) $(objdir)/cygmon.ld
+SPARC_INSTALL = sparc-install
+SPARC_OBJ_FORMAT = sparc
+SPARC_RAM_START = 0x4000
+
+# sparc 64 stuff
+SPARC64_ALL = $(CYGMON_BSP) $(CYGMON_CRT0) $(objdir)/cygmon.ld
+SPARC64_INSTALL = sparc-install
+SPARC64_OBJ_FORMAT = sparc:v9
+SPARC64_RAM_START = 0x4000
+
+# sparclite stuff
+SLITE_ALL = $(930_BSP) $(931_BSP) $(CYGMON_BSP) $(CYGMON_CRT0) $(objdir)/cygmon.ld $(934_BSP) $(86X_BSP)
+SLITE_INSTALL = slite-install
+SLITE_OBJ_FORMAT = sparc
+SLITE_RAM_START = 0x40050000
+
+# sparclet stuff
+SPLET_ALL = $(701_CRT0) $(701_BSP)
+SPLET_INSTALL = splet-install
+
+#### Host specific Makefile fragment comes in here.
+@host_makefile_frag@
+
+all: ${CRT0} $($(CPU)_ALL) $(ERC32_ALL)
+
+$(CYGMON_CRT0): cygmon-crt0.S
+	$(CC) $(CFLAGS_FOR_TARGET) $(CFLAGS) -DTARGET_CPU_$(CPU) $(INCLUDES) -o $@ -c $(srcdir)/cygmon-crt0.S
+
+$(CYGMON_BSP): $(CYGMON_OBJS)
+	@rm -f $@
+	${AR} ${AR_FLAGS} $@ $(CYGMON_OBJS)
+	${RANLIB} $@
+
+#$(STUBLIBS): $(OBJS) $(SLITE_OBJS) $(CRT0)
+#	${CC} -nostdlib -r $(SLITE_OBJS) $(SHARED_OBJS) -o $(930_BSP)
+#	${CC} -DSL931 -nostdlib -r $(SLITE_OBJS) $(SHARED_OBJS) -o $(931_BSP)
+#	${CC} -nostdlib -r $(SLITE_OBJS) $(SHARED_OBJS) -o $(934_BSP)
+
+$(CRT0): $(srcdir)/crt0.S $(srcdir)/asm.h $(srcdir)/slite.h
+	$(CC) $(CFLAGS_FOR_TARGET) $(CFLAGS) $(INCLUDES) -o $@ -c $(srcdir)/crt0.S
+
+$(930_BSP) $(931_BSP) $(934_BSP) $(86X_BSP): $(OBJS) $(SLITE_OBJS) 
+	@rm -f $@
+	${AR} ${AR_FLAGS} $@ $(OBJS) $(SLITE_OBJS)
+	${RANLIB} $@
+
+$(701_BSP): $(701_OBJS)
+	@rm -f $@
+	${AR} ${AR_FLAGS} $@ $(701_OBJS)
+	${RANLIB} $@
+
+erc32-crt0.o: $(srcdir)/erc32-crt0.S $(srcdir)/asm.h $(srcdir)/slite.h
+	$(CC) $(CFLAGS_FOR_TARGET) $(CFLAGS) $(INCLUDES) -o $@ -c $(srcdir)/erc32-crt0.S
+
+liberc32.a: $(OBJS) $(ERC32_OBJS)
+	@rm -f $@
+	${AR} ${AR_FLAGS} $@ $(OBJS) $(ERC32_OBJS)
+	${RANLIB} $@
+
+crt0-701.o: crt0-701.S
+sysc-701.o: sysc-701.c
+salib-701.o: salib-701.c
+sparclet-stub.o: sparclet-stub.c
+cygmon-salib.o: cygmon-salib.c
+	$(CC) -DTARGET_CPU_$(CPU) $(CFLAGS_FOR_TARGET) $(CFLAGS) $(INCLUDES) -o $@ -c $(srcdir)/cygmon-salib.c
+cache.o: $(srcdir)/cache.c
+salib.o: $(srcdir)/salib.c
+win.o: $(srcdir)/win.S
+syscalls.o: $(srcdir)/syscalls.c
+sparcl-stub.o: $(srcdir)/sparcl-stub.c $(srcdir)/../debug.h $(srcdir)/../debug.c
+erc32-stub.o: $(srcdir)/erc32-stub.c $(srcdir)/../debug.h $(srcdir)/../debug.c
+fixctors.o : $(srcdir)/fixctors.c
+
+$(objdir)/cygmon.ld: @CYGMONLDSCRIPTTEMPL@
+	sed 's/TARGET_OBJ_FORMAT/$($(CPU)_OBJ_FORMAT)/g;s/TARGET_RAM_START/$($(CPU)_RAM_START)/g;' < $(<) > $(objdir)/cygmon.ld
+
+install: $($(CPU)_INSTALL)
+	$(INSTALL_DATA) $(CRT0) $(tooldir)/lib${MULTISUBDIR}/$(CRT0)
+
+sparc-install:
+	$(INSTALL_DATA) $(CYGMON_BSP) $(tooldir)/lib${MULTISUBDIR}
+	$(INSTALL_DATA) $(CYGMON_OBJS) $(tooldir)/lib${MULTISUBDIR}
+	$(INSTALL_DATA) $(objdir)/cygmon.ld $(tooldir)/lib${MULTISUBDIR}
+	$(INSTALL_DATA) $(CYGMON_CRT0) $(tooldir)/lib${MULTISUBDIR}
+
+slite-install:
+	$(INSTALL_DATA) $(930_BSP) $(tooldir)/lib${MULTISUBDIR}/$(930_BSP)
+	$(INSTALL_DATA) $(931_BSP) $(tooldir)/lib${MULTISUBDIR}/$(931_BSP)
+	$(INSTALL_DATA) $(934_BSP) $(tooldir)/lib${MULTISUBDIR}/$(934_BSP)
+	$(INSTALL_DATA) $(86X_BSP) $(tooldir)/lib${MULTISUBDIR}/$(86X_BSP)
+	$(INSTALL_DATA) $(srcdir)/ex930.ld $(tooldir)/lib${MULTISUBDIR}
+	$(INSTALL_DATA) $(srcdir)/ex931.ld $(tooldir)/lib${MULTISUBDIR}
+	$(INSTALL_DATA) $(srcdir)/ex934.ld $(tooldir)/lib${MULTISUBDIR}
+	$(INSTALL_DATA) $(srcdir)/sparc86x.ld $(tooldir)/lib${MULTISUBDIR}
+	$(INSTALL_DATA) $(srcdir)/elfsim.ld $(tooldir)/lib${MULTISUBDIR}
+	$(INSTALL_DATA) $(ERC32_CRT0) $(tooldir)/lib${MULTISUBDIR}
+	$(INSTALL_DATA) $(ERC32_BSP) $(tooldir)/lib${MULTISUBDIR}
+	$(INSTALL_DATA) $(objdir)/traps.o $(tooldir)/lib${MULTISUBDIR}
+	$(INSTALL_DATA) $(CYGMON_BSP) $(tooldir)/lib${MULTISUBDIR}
+	$(INSTALL_DATA) $(CYGMON_OBJS) $(tooldir)/lib${MULTISUBDIR}
+	$(INSTALL_DATA) $(objdir)/cygmon.ld $(tooldir)/lib${MULTISUBDIR}
+	$(INSTALL_DATA) $(CYGMON_CRT0) $(tooldir)/lib${MULTISUBDIR}
+
+splet-install:
+	$(INSTALL_DATA) $(701_CRT0) $(tooldir)/lib${MULTISUBDIR}/$(701_CRT0)
+	$(INSTALL_DATA) $(701_BSP) $(tooldir)/lib${MULTISUBDIR}/$(701_BSP)
+	$(INSTALL_DATA) $(srcdir)/tsc701.ld $(tooldir)/lib${MULTISUBDIR}
+
+# Make a simple test case to test the linker script, startup code, and
+# I/O code
+#
+test: ex930-test.x ex931-test.x erc32-test.x
+	@echo Done...
+
+# compile a fully linked binary. The -N option is for a.out, so the
+# base address will be zero, rather than the default of 0x2020. The
+# -Wl,-T*.ld is for the linker script. By using -Wl, the linker script
+# is put on the proper place in the comand line for ld, and all the
+# symbols will get fully resolved.
+
+erc32-test.x: test.o ${ERC32_CRT0} ${srcdir}/erc32.ld Makefile ${ERC32_BSP}
+	${CC} -L${srcdir} -L${objdir} test.o -o $@ $(LDFLAGS_FOR_TARGET) \
+	-N -Wl,-Terc32.ld -Wl,-Map -Wl,erc32.map -nostdlib
+erc32-test.srec: erc32-test.x
+	$(OBJCOPY) -O srec erc32-test.x $@
+erc32-test.dis: erc32-test.x
+	@rm -fr erc32-test.dis
+	$(OBJDUMP) -d erc32-test.x > $@
+erc32-test: erc32-test.srec erc32-test.dis
+
+ex930-test.x: test.o ${CRT0} ${srcdir}/ex930.ld Makefile  ${930_BSP}
+	${CC} -L${srcdir} -L${objdir} test.o -o $@ $(LDFLAGS_FOR_TARGET) \
+	-N -Wl,-Tex930.ld -nostdlib
+ex930-test.srec: ex930-test.x
+	$(OBJCOPY) -O srec ex930-test.x $@
+ex930-test.dis: ex930-test.x
+	@rm -fr ex930-test.dis
+	$(OBJDUMP) -d ex930-test.x > $@
+ex930-test: ex930-test.srec ex930-test.dis
+
+ex931-test.x: test.o ${CRT0} ${srcdir}/ex931.ld Makefile  ${931_BSP}
+	${CC} -L${srcdir} -L${objdir} test.o -o $@ $(LDFLAGS_FOR_TARGET) \
+	-N -Wl,-Tex931.ld -nostdlib
+ex931-test.srec: ex931-test.x
+	$(OBJCOPY) -O srec ex931-test.x $@
+ex931-test.dis: ex931-test.x
+	@rm -fr ex931-test.dis
+	$(OBJDUMP) -d ex931-test.x > $@
+ex931-test: ex931-test.srec ex931-test.dis
+
+ex934-test.x: test.o ${CRT0} ${srcdir}/ex934.ld Makefile  ${934_BSP}
+	${CC} -L${srcdir} -L${objdir} test.o -o $@ $(LDFLAGS_FOR_TARGET) \
+	-N -Wl,-Tex934.ld -nostdlib
+ex934-test.srec: ex934-test.x
+	$(OBJCOPY) -O srec ex934-test.x $@
+ex934-test.dis: ex934-test.x
+	@rm -fr ex934-test.dis
+	$(OBJDUMP) -d ex934-test.x > $@
+ex934-test: ex934-test.srec ex934-test.dis
+
+# a C++ test case
+dtor.o:  $(srcdir)/dtor.C
+	$(CC) $(CFLAGS_FOR_TARGET) $(INCLUDES) -o $@ -c $?
+dtor.dis: dtor.x
+	@rm -fr dtor.dis
+	$(OBJDUMP) -d dtor.x > $@
+dtor.x: dtor.o ${ERC32_CRT0} ${srcdir}/erc32.ld Makefile ${ERC32_BSP}
+	${CC} -L${srcdir} -L${objdir} dtor.o -o $@ $(LIBS_FOR_TARGET) \
+	-N -Wl,-Terc32.ld
+
+# target specific makefile fragment comes in here.
+@target_makefile_frag@
+
+clean mostlyclean:
+	rm -f *.o *.a *.map *.x
+
+distclean maintainer-clean realclean: clean
+	rm -f Makefile config.cache config.log config.status
+
+.PHONY: info dvi doc install-info clean-info
+info doc dvi:
+install-info:
+clean-info:
+
+Makefile: Makefile.in config.status @host_makefile_frag_path@ \
+	@target_makefile_frag_path@
+	$(SHELL) config.status
+
+config.status: configure
+	$(SHELL) config.status --recheck
diff --git a/libgloss/sparc/asm.h b/libgloss/sparc/asm.h
new file mode 100644
index 0000000..daeff34
--- /dev/null
+++ b/libgloss/sparc/asm.h
@@ -0,0 +1,39 @@
+/* asm.h -- macros for sparc asm
+ *
+ * Copyright (c) 1996 Cygnus Support
+ *
+ * The authors hereby grant permission to use, copy, modify, distribute,
+ * and license this software and its documentation for any purpose, provided
+ * that existing copyright notices are retained in all copies and that this
+ * notice is included verbatim in any distributions. No written agreement,
+ * license, or royalty fee is required for any of the authorized uses.
+ * Modifications to this software may be copyrighted by their authors
+ * and need not follow the licensing terms described here, provided that
+ * the new terms are clearly indicated on the first page of each file where
+ * they apply.
+ */
+
+#ifndef __SPARC_ASM_h
+#define __SPARC_ASM_h
+
+/* Indicate we are in an assembly file and get the basic CPU definitions.  */
+#define ASM
+
+/* ANSI concatenation macros.  */
+#define CONCAT1(a, b) CONCAT2(a, b)
+#define CONCAT2(a, b) a ## b
+
+/* Use the right prefix for global labels.
+   Note that it's too late to have coff have no underscores
+   (would break user programs).
+   One school of thought likes having underscores for both a.out and coff
+   (simplicity in consistency).  */
+#define SYM(x) CONCAT1 (__USER_LABEL_PREFIX__,x)
+
+/* STRINGSYM makes a string out of a symbol name with the proper assembly
+   prefix.  Useful for inline assembly language in C source files.  */
+#define STRINGIT2(x) #x
+#define STRINGIT1(x) STRINGIT2(x)
+#define STRINGSYM(x) STRINGIT1(SYM(x))
+
+#endif
diff --git a/libgloss/sparc/cache.c b/libgloss/sparc/cache.c
new file mode 100644
index 0000000..5b6e270
--- /dev/null
+++ b/libgloss/sparc/cache.c
@@ -0,0 +1,147 @@
+/* Cache code for SPARClite
+ *
+ * Copyright (c) 1998 Cygnus Support
+ *
+ * The authors hereby grant permission to use, copy, modify, distribute,
+ * and license this software and its documentation for any purpose, provided
+ * that existing copyright notices are retained in all copies and that this
+ * notice is included verbatim in any distributions. No written agreement,
+ * license, or royalty fee is required for any of the authorized uses.
+ * Modifications to this software may be copyrighted by their authors
+ * and need not follow the licensing terms described here, provided that
+ * the new terms are clearly indicated on the first page of each file where
+ * they apply.
+ */
+
+#include "sparclite.h"
+
+/* Ancillary registers on the DANlite */
+
+#define DIAG 30
+#define ICCR 31
+
+/* Bits in the DIAG register */
+
+#define ICD 0x40000000		/* ICACHE disable */
+#define DCD 0x20000000		/* DCACHE disable */
+
+/* Bits in the ICCR register */
+
+#define CE 1			/* cache enable*/
+
+
+/* Forward declarations. */
+
+void flush_i_cache ();
+
+
+/* Determine if this is a DANlite (MB8686x), as opposed to an earlier
+   SPARClite (MB8683x).  This is done by examining the impl and ver
+   fields in the PSR:
+
+   MB8683x: impl(bit31-28)=0x0; ver(bit27-24)=0xf;
+   MB8686x: impl(bit31-28)=0x1; ver(bit27-24)=0xe;
+*/
+
+static int
+is_danlite ()
+{
+  static int checked = 0;
+  static int danlite = 0;
+  
+  if (!checked)
+    {
+      int psr = read_psr ();
+      danlite = (psr & 0xff000000) == 0x1e000000;
+      checked = 1;
+    }
+  return danlite;
+}
+
+/* This cache code is known to work on both the 930 & 932 processors.  It just
+   cheats and clears the all of the address space that could contain tags, as
+   opposed to striding the tags at 8 or 16 word intervals, or using the cache
+   flush registers, which don't exist on all processors.  */
+
+void
+cache_off ()
+{
+  if (is_danlite ())
+    {
+      /* Disable the ICACHE.  Disabling the DCACHE crashes the machine. */
+      unsigned int diag = read_asr (DIAG);
+      write_asr (DIAG, diag | ICD);
+    }
+  else
+    {
+      write_asi (1, 0, 0);
+    }
+}
+
+void
+cache_on ()
+{
+  if (is_danlite ())
+    {
+      unsigned int diag;
+
+      /* Flush the caches. */
+      flush_i_cache ();
+
+      /* Enable the ICACHE and DCACHE */
+      diag = read_asr (DIAG);
+      write_asr (DIAG, diag & ~ (ICD | DCD));
+    }
+  else
+    {
+      unsigned long addr;
+
+      cache_off ();			/* Make sure the cache is off */
+
+      /* Reset all of the cache line valid bits */
+
+      for (addr = 0; addr < 0x1000; addr += 8)
+	{
+	  write_asi (0xc, addr, 0);	/* Clear bank 1, icache */
+	  write_asi (0xc, addr + 0x80000000, 0); /* Clear bank 2, icache */
+
+	  write_asi (0xe, addr, 0);	/* Clear bank 1, dcache */
+	  write_asi (0xe, addr + 0x80000000, 0); /* Clear bank 2, dcache */
+	}
+
+      /* turn on the cache */
+
+      write_asi (1, 0, 0x35);	/* Write buf ena, prefetch buf ena, data
+				       & inst caches enab */
+    }
+}
+
+/* Flush the instruction cache.  We need to do this for the debugger stub so
+   that breakpoints, et. al. become visible to the instruction stream after
+   storing them in memory.
+ */
+
+void
+flush_i_cache ()
+{
+  if (is_danlite ())
+    {
+      write_asi (0x31, 0, 0);	/* Flush entire i/d caches */
+    }
+  else
+    {
+      int cache_reg;
+      unsigned long addr;
+
+      cache_reg = read_asi (1, 0);	/* Read cache/bus interface reg */
+
+      if (!(cache_reg & 1))
+	return;			/* Just return if cache is already off */
+
+      for (addr = 0; addr < 0x1000; addr += 8)
+	{
+	  write_asi (0xc, addr, 0);	/* Clear bank 1, icache */
+	  write_asi (0xc, addr + 0x80000000, 0); /* Clear bank 2, icache */
+	}
+    }
+}
diff --git a/libgloss/sparc/configure b/libgloss/sparc/configure
new file mode 100755
index 0000000..8c5c76c
--- /dev/null
+++ b/libgloss/sparc/configure
@@ -0,0 +1,1201 @@
+#! /bin/sh
+
+# Guess values for system-dependent variables and create Makefiles.
+# Generated automatically using autoconf version 2.12.1 
+# Copyright (C) 1992, 93, 94, 95, 96 Free Software Foundation, Inc.
+#
+# This configure script is free software; the Free Software Foundation
+# gives unlimited permission to copy, distribute and modify it.
+
+# Defaults:
+ac_help=
+ac_default_prefix=/usr/local
+# Any additions from configure.in:
+
+# Initialize some variables set by options.
+# The variables have the same names as the options, with
+# dashes changed to underlines.
+build=NONE
+cache_file=./config.cache
+exec_prefix=NONE
+host=NONE
+no_create=
+nonopt=NONE
+no_recursion=
+prefix=NONE
+program_prefix=NONE
+program_suffix=NONE
+program_transform_name=s,x,x,
+silent=
+site=
+srcdir=
+target=NONE
+verbose=
+x_includes=NONE
+x_libraries=NONE
+bindir='${exec_prefix}/bin'
+sbindir='${exec_prefix}/sbin'
+libexecdir='${exec_prefix}/libexec'
+datadir='${prefix}/share'
+sysconfdir='${prefix}/etc'
+sharedstatedir='${prefix}/com'
+localstatedir='${prefix}/var'
+libdir='${exec_prefix}/lib'
+includedir='${prefix}/include'
+oldincludedir='/usr/include'
+infodir='${prefix}/info'
+mandir='${prefix}/man'
+
+# Initialize some other variables.
+subdirs=
+MFLAGS= MAKEFLAGS=
+SHELL=${CONFIG_SHELL-/bin/sh}
+# Maximum number of lines to put in a shell here document.
+ac_max_here_lines=12
+
+ac_prev=
+for ac_option
+do
+
+  # If the previous option needs an argument, assign it.
+  if test -n "$ac_prev"; then
+    eval "$ac_prev=\$ac_option"
+    ac_prev=
+    continue
+  fi
+
+  case "$ac_option" in
+  -*=*) ac_optarg=`echo "$ac_option" | sed 's/[-_a-zA-Z0-9]*=//'` ;;
+  *) ac_optarg= ;;
+  esac
+
+  # Accept the important Cygnus configure options, so we can diagnose typos.
+
+  case "$ac_option" in
+
+  -bindir | --bindir | --bindi | --bind | --bin | --bi)
+    ac_prev=bindir ;;
+  -bindir=* | --bindir=* | --bindi=* | --bind=* | --bin=* | --bi=*)
+    bindir="$ac_optarg" ;;
+
+  -build | --build | --buil | --bui | --bu)
+    ac_prev=build ;;
+  -build=* | --build=* | --buil=* | --bui=* | --bu=*)
+    build="$ac_optarg" ;;
+
+  -cache-file | --cache-file | --cache-fil | --cache-fi \
+  | --cache-f | --cache- | --cache | --cach | --cac | --ca | --c)
+    ac_prev=cache_file ;;
+  -cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \
+  | --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* | --c=*)
+    cache_file="$ac_optarg" ;;
+
+  -datadir | --datadir | --datadi | --datad | --data | --dat | --da)
+    ac_prev=datadir ;;
+  -datadir=* | --datadir=* | --datadi=* | --datad=* | --data=* | --dat=* \
+  | --da=*)
+    datadir="$ac_optarg" ;;
+
+  -disable-* | --disable-*)
+    ac_feature=`echo $ac_option|sed -e 's/-*disable-//'`
+    # Reject names that are not valid shell variable names.
+    if test -n "`echo $ac_feature| sed 's/[-a-zA-Z0-9_]//g'`"; then
+      { echo "configure: error: $ac_feature: invalid feature name" 1>&2; exit 1; }
+    fi
+    ac_feature=`echo $ac_feature| sed 's/-/_/g'`
+    eval "enable_${ac_feature}=no" ;;
+
+  -enable-* | --enable-*)
+    ac_feature=`echo $ac_option|sed -e 's/-*enable-//' -e 's/=.*//'`
+    # Reject names that are not valid shell variable names.
+    if test -n "`echo $ac_feature| sed 's/[-_a-zA-Z0-9]//g'`"; then
+      { echo "configure: error: $ac_feature: invalid feature name" 1>&2; exit 1; }
+    fi
+    ac_feature=`echo $ac_feature| sed 's/-/_/g'`
+    case "$ac_option" in
+      *=*) ;;
+      *) ac_optarg=yes ;;
+    esac
+    eval "enable_${ac_feature}='$ac_optarg'" ;;
+
+  -exec-prefix | --exec_prefix | --exec-prefix | --exec-prefi \
+  | --exec-pref | --exec-pre | --exec-pr | --exec-p | --exec- \
+  | --exec | --exe | --ex)
+    ac_prev=exec_prefix ;;
+  -exec-prefix=* | --exec_prefix=* | --exec-prefix=* | --exec-prefi=* \
+  | --exec-pref=* | --exec-pre=* | --exec-pr=* | --exec-p=* | --exec-=* \
+  | --exec=* | --exe=* | --ex=*)
+    exec_prefix="$ac_optarg" ;;
+
+  -gas | --gas | --ga | --g)
+    # Obsolete; use --with-gas.
+    with_gas=yes ;;
+
+  -help | --help | --hel | --he)
+    # Omit some internal or obsolete options to make the list less imposing.
+    # This message is too long to be a string in the A/UX 3.1 sh.
+    cat << EOF
+Usage: configure [options] [host]
+Options: [defaults in brackets after descriptions]
+Configuration:
+  --cache-file=FILE       cache test results in FILE
+  --help                  print this message
+  --no-create             do not create output files
+  --quiet, --silent       do not print \`checking...' messages
+  --version               print the version of autoconf that created configure
+Directory and file names:
+  --prefix=PREFIX         install architecture-independent files in PREFIX
+                          [$ac_default_prefix]
+  --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX
+                          [same as prefix]
+  --bindir=DIR            user executables in DIR [EPREFIX/bin]
+  --sbindir=DIR           system admin executables in DIR [EPREFIX/sbin]
+  --libexecdir=DIR        program executables in DIR [EPREFIX/libexec]
+  --datadir=DIR           read-only architecture-independent data in DIR
+                          [PREFIX/share]
+  --sysconfdir=DIR        read-only single-machine data in DIR [PREFIX/etc]
+  --sharedstatedir=DIR    modifiable architecture-independent data in DIR
+                          [PREFIX/com]
+  --localstatedir=DIR     modifiable single-machine data in DIR [PREFIX/var]
+  --libdir=DIR            object code libraries in DIR [EPREFIX/lib]
+  --includedir=DIR        C header files in DIR [PREFIX/include]
+  --oldincludedir=DIR     C header files for non-gcc in DIR [/usr/include]
+  --infodir=DIR           info documentation in DIR [PREFIX/info]
+  --mandir=DIR            man documentation in DIR [PREFIX/man]
+  --srcdir=DIR            find the sources in DIR [configure dir or ..]
+  --program-prefix=PREFIX prepend PREFIX to installed program names
+  --program-suffix=SUFFIX append SUFFIX to installed program names
+  --program-transform-name=PROGRAM
+                          run sed PROGRAM on installed program names
+EOF
+    cat << EOF
+Host type:
+  --build=BUILD           configure for building on BUILD [BUILD=HOST]
+  --host=HOST             configure for HOST [guessed]
+  --target=TARGET         configure for TARGET [TARGET=HOST]
+Features and packages:
+  --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
+  --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
+  --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
+  --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
+  --x-includes=DIR        X include files are in DIR
+  --x-libraries=DIR       X library files are in DIR
+EOF
+    if test -n "$ac_help"; then
+      echo "--enable and --with options recognized:$ac_help"
+    fi
+    exit 0 ;;
+
+  -host | --host | --hos | --ho)
+    ac_prev=host ;;
+  -host=* | --host=* | --hos=* | --ho=*)
+    host="$ac_optarg" ;;
+
+  -includedir | --includedir | --includedi | --included | --include \
+  | --includ | --inclu | --incl | --inc)
+    ac_prev=includedir ;;
+  -includedir=* | --includedir=* | --includedi=* | --included=* | --include=* \
+  | --includ=* | --inclu=* | --incl=* | --inc=*)
+    includedir="$ac_optarg" ;;
+
+  -infodir | --infodir | --infodi | --infod | --info | --inf)
+    ac_prev=infodir ;;
+  -infodir=* | --infodir=* | --infodi=* | --infod=* | --info=* | --inf=*)
+    infodir="$ac_optarg" ;;
+
+  -libdir | --libdir | --libdi | --libd)
+    ac_prev=libdir ;;
+  -libdir=* | --libdir=* | --libdi=* | --libd=*)
+    libdir="$ac_optarg" ;;
+
+  -libexecdir | --libexecdir | --libexecdi | --libexecd | --libexec \
+  | --libexe | --libex | --libe)
+    ac_prev=libexecdir ;;
+  -libexecdir=* | --libexecdir=* | --libexecdi=* | --libexecd=* | --libexec=* \
+  | --libexe=* | --libex=* | --libe=*)
+    libexecdir="$ac_optarg" ;;
+
+  -localstatedir | --localstatedir | --localstatedi | --localstated \
+  | --localstate | --localstat | --localsta | --localst \
+  | --locals | --local | --loca | --loc | --lo)
+    ac_prev=localstatedir ;;
+  -localstatedir=* | --localstatedir=* | --localstatedi=* | --localstated=* \
+  | --localstate=* | --localstat=* | --localsta=* | --localst=* \
+  | --locals=* | --local=* | --loca=* | --loc=* | --lo=*)
+    localstatedir="$ac_optarg" ;;
+
+  -mandir | --mandir | --mandi | --mand | --man | --ma | --m)
+    ac_prev=mandir ;;
+  -mandir=* | --mandir=* | --mandi=* | --mand=* | --man=* | --ma=* | --m=*)
+    mandir="$ac_optarg" ;;
+
+  -nfp | --nfp | --nf)
+    # Obsolete; use --without-fp.
+    with_fp=no ;;
+
+  -no-create | --no-create | --no-creat | --no-crea | --no-cre \
+  | --no-cr | --no-c)
+    no_create=yes ;;
+
+  -no-recursion | --no-recursion | --no-recursio | --no-recursi \
+  | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r)
+    no_recursion=yes ;;
+
+  -oldincludedir | --oldincludedir | --oldincludedi | --oldincluded \
+  | --oldinclude | --oldinclud | --oldinclu | --oldincl | --oldinc \
+  | --oldin | --oldi | --old | --ol | --o)
+    ac_prev=oldincludedir ;;
+  -oldincludedir=* | --oldincludedir=* | --oldincludedi=* | --oldincluded=* \
+  | --oldinclude=* | --oldinclud=* | --oldinclu=* | --oldincl=* | --oldinc=* \
+  | --oldin=* | --oldi=* | --old=* | --ol=* | --o=*)
+    oldincludedir="$ac_optarg" ;;
+
+  -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
+    ac_prev=prefix ;;
+  -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
+    prefix="$ac_optarg" ;;
+
+  -program-prefix | --program-prefix | --program-prefi | --program-pref \
+  | --program-pre | --program-pr | --program-p)
+    ac_prev=program_prefix ;;
+  -program-prefix=* | --program-prefix=* | --program-prefi=* \
+  | --program-pref=* | --program-pre=* | --program-pr=* | --program-p=*)
+    program_prefix="$ac_optarg" ;;
+
+  -program-suffix | --program-suffix | --program-suffi | --program-suff \
+  | --program-suf | --program-su | --program-s)
+    ac_prev=program_suffix ;;
+  -program-suffix=* | --program-suffix=* | --program-suffi=* \
+  | --program-suff=* | --program-suf=* | --program-su=* | --program-s=*)
+    program_suffix="$ac_optarg" ;;
+
+  -program-transform-name | --program-transform-name \
+  | --program-transform-nam | --program-transform-na \
+  | --program-transform-n | --program-transform- \
+  | --program-transform | --program-transfor \
+  | --program-transfo | --program-transf \
+  | --program-trans | --program-tran \
+  | --progr-tra | --program-tr | --program-t)
+    ac_prev=program_transform_name ;;
+  -program-transform-name=* | --program-transform-name=* \
+  | --program-transform-nam=* | --program-transform-na=* \
+  | --program-transform-n=* | --program-transform-=* \
+  | --program-transform=* | --program-transfor=* \
+  | --program-transfo=* | --program-transf=* \
+  | --program-trans=* | --program-tran=* \
+  | --progr-tra=* | --program-tr=* | --program-t=*)
+    program_transform_name="$ac_optarg" ;;
+
+  -q | -quiet | --quiet | --quie | --qui | --qu | --q \
+  | -silent | --silent | --silen | --sile | --sil)
+    silent=yes ;;
+
+  -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
+    ac_prev=sbindir ;;
+  -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
+  | --sbi=* | --sb=*)
+    sbindir="$ac_optarg" ;;
+
+  -sharedstatedir | --sharedstatedir | --sharedstatedi \
+  | --sharedstated | --sharedstate | --sharedstat | --sharedsta \
+  | --sharedst | --shareds | --shared | --share | --shar \
+  | --sha | --sh)
+    ac_prev=sharedstatedir ;;
+  -sharedstatedir=* | --sharedstatedir=* | --sharedstatedi=* \
+  | --sharedstated=* | --sharedstate=* | --sharedstat=* | --sharedsta=* \
+  | --sharedst=* | --shareds=* | --shared=* | --share=* | --shar=* \
+  | --sha=* | --sh=*)
+    sharedstatedir="$ac_optarg" ;;
+
+  -site | --site | --sit)
+    ac_prev=site ;;
+  -site=* | --site=* | --sit=*)
+    site="$ac_optarg" ;;
+
+  -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
+    ac_prev=srcdir ;;
+  -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
+    srcdir="$ac_optarg" ;;
+
+  -sysconfdir | --sysconfdir | --sysconfdi | --sysconfd | --sysconf \
+  | --syscon | --sysco | --sysc | --sys | --sy)
+    ac_prev=sysconfdir ;;
+  -sysconfdir=* | --sysconfdir=* | --sysconfdi=* | --sysconfd=* | --sysconf=* \
+  | --syscon=* | --sysco=* | --sysc=* | --sys=* | --sy=*)
+    sysconfdir="$ac_optarg" ;;
+
+  -target | --target | --targe | --targ | --tar | --ta | --t)
+    ac_prev=target ;;
+  -target=* | --target=* | --targe=* | --targ=* | --tar=* | --ta=* | --t=*)
+    target="$ac_optarg" ;;
+
+  -v | -verbose | --verbose | --verbos | --verbo | --verb)
+    verbose=yes ;;
+
+  -version | --version | --versio | --versi | --vers)
+    echo "configure generated by autoconf version 2.12.1"
+    exit 0 ;;
+
+  -with-* | --with-*)
+    ac_package=`echo $ac_option|sed -e 's/-*with-//' -e 's/=.*//'`
+    # Reject names that are not valid shell variable names.
+    if test -n "`echo $ac_package| sed 's/[-_a-zA-Z0-9]//g'`"; then
+      { echo "configure: error: $ac_package: invalid package name" 1>&2; exit 1; }
+    fi
+    ac_package=`echo $ac_package| sed 's/-/_/g'`
+    case "$ac_option" in
+      *=*) ;;
+      *) ac_optarg=yes ;;
+    esac
+    eval "with_${ac_package}='$ac_optarg'" ;;
+
+  -without-* | --without-*)
+    ac_package=`echo $ac_option|sed -e 's/-*without-//'`
+    # Reject names that are not valid shell variable names.
+    if test -n "`echo $ac_package| sed 's/[-a-zA-Z0-9_]//g'`"; then
+      { echo "configure: error: $ac_package: invalid package name" 1>&2; exit 1; }
+    fi
+    ac_package=`echo $ac_package| sed 's/-/_/g'`
+    eval "with_${ac_package}=no" ;;
+
+  --x)
+    # Obsolete; use --with-x.
+    with_x=yes ;;
+
+  -x-includes | --x-includes | --x-include | --x-includ | --x-inclu \
+  | --x-incl | --x-inc | --x-in | --x-i)
+    ac_prev=x_includes ;;
+  -x-includes=* | --x-includes=* | --x-include=* | --x-includ=* | --x-inclu=* \
+  | --x-incl=* | --x-inc=* | --x-in=* | --x-i=*)
+    x_includes="$ac_optarg" ;;
+
+  -x-libraries | --x-libraries | --x-librarie | --x-librari \
+  | --x-librar | --x-libra | --x-libr | --x-lib | --x-li | --x-l)
+    ac_prev=x_libraries ;;
+  -x-libraries=* | --x-libraries=* | --x-librarie=* | --x-librari=* \
+  | --x-librar=* | --x-libra=* | --x-libr=* | --x-lib=* | --x-li=* | --x-l=*)
+    x_libraries="$ac_optarg" ;;
+
+  -*) { echo "configure: error: $ac_option: invalid option; use --help to show usage" 1>&2; exit 1; }
+    ;;
+
+  *)
+    if test -n "`echo $ac_option| sed 's/[-a-z0-9.]//g'`"; then
+      echo "configure: warning: $ac_option: invalid host type" 1>&2
+    fi
+    if test "x$nonopt" != xNONE; then
+      { echo "configure: error: can only configure for one host and one target at a time" 1>&2; exit 1; }
+    fi
+    nonopt="$ac_option"
+    ;;
+
+  esac
+done
+
+if test -n "$ac_prev"; then
+  { echo "configure: error: missing argument to --`echo $ac_prev | sed 's/_/-/g'`" 1>&2; exit 1; }
+fi
+
+trap 'rm -fr conftest* confdefs* core core.* *.core $ac_clean_files; exit 1' 1 2 15
+
+# File descriptor usage:
+# 0 standard input
+# 1 file creation
+# 2 errors and warnings
+# 3 some systems may open it to /dev/tty
+# 4 used on the Kubota Titan
+# 6 checking for... messages and results
+# 5 compiler messages saved in config.log
+if test "$silent" = yes; then
+  exec 6>/dev/null
+else
+  exec 6>&1
+fi
+exec 5>./config.log
+
+echo "\
+This file contains any messages produced by compilers while
+running configure, to aid debugging if configure makes a mistake.
+" 1>&5
+
+# Strip out --no-create and --no-recursion so they do not pile up.
+# Also quote any args containing shell metacharacters.
+ac_configure_args=
+for ac_arg
+do
+  case "$ac_arg" in
+  -no-create | --no-create | --no-creat | --no-crea | --no-cre \
+  | --no-cr | --no-c) ;;
+  -no-recursion | --no-recursion | --no-recursio | --no-recursi \
+  | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r) ;;
+  *" "*|*"	"*|*[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?]*)
+  ac_configure_args="$ac_configure_args '$ac_arg'" ;;
+  *) ac_configure_args="$ac_configure_args $ac_arg" ;;
+  esac
+done
+
+# NLS nuisances.
+# Only set these to C if already set.  These must not be set unconditionally
+# because not all systems understand e.g. LANG=C (notably SCO).
+# Fixing LC_MESSAGES prevents Solaris sh from translating var values in `set'!
+# Non-C LC_CTYPE values break the ctype check.
+if test "${LANG+set}"   = set; then LANG=C;   export LANG;   fi
+if test "${LC_ALL+set}" = set; then LC_ALL=C; export LC_ALL; fi
+if test "${LC_MESSAGES+set}" = set; then LC_MESSAGES=C; export LC_MESSAGES; fi
+if test "${LC_CTYPE+set}"    = set; then LC_CTYPE=C;    export LC_CTYPE;    fi
+
+# confdefs.h avoids OS command line length limits that DEFS can exceed.
+rm -rf conftest* confdefs.h
+# AIX cpp loses on an empty file, so make sure it contains at least a newline.
+echo > confdefs.h
+
+# A filename unique to this package, relative to the directory that
+# configure is in, which we can look for to find out if srcdir is correct.
+ac_unique_file=sparc-stub.c
+
+# Find the source files, if location was not specified.
+if test -z "$srcdir"; then
+  ac_srcdir_defaulted=yes
+  # Try the directory containing this script, then its parent.
+  ac_prog=$0
+  ac_confdir=`echo $ac_prog|sed 's%/[^/][^/]*$%%'`
+  test "x$ac_confdir" = "x$ac_prog" && ac_confdir=.
+  srcdir=$ac_confdir
+  if test ! -r $srcdir/$ac_unique_file; then
+    srcdir=..
+  fi
+else
+  ac_srcdir_defaulted=no
+fi
+if test ! -r $srcdir/$ac_unique_file; then
+  if test "$ac_srcdir_defaulted" = yes; then
+    { echo "configure: error: can not find sources in $ac_confdir or .." 1>&2; exit 1; }
+  else
+    { echo "configure: error: can not find sources in $srcdir" 1>&2; exit 1; }
+  fi
+fi
+srcdir=`echo "${srcdir}" | sed 's%\([^/]\)/*$%\1%'`
+
+# Prefer explicitly selected file to automatically selected ones.
+if test -z "$CONFIG_SITE"; then
+  if test "x$prefix" != xNONE; then
+    CONFIG_SITE="$prefix/share/config.site $prefix/etc/config.site"
+  else
+    CONFIG_SITE="$ac_default_prefix/share/config.site $ac_default_prefix/etc/config.site"
+  fi
+fi
+for ac_site_file in $CONFIG_SITE; do
+  if test -r "$ac_site_file"; then
+    echo "loading site script $ac_site_file"
+    . "$ac_site_file"
+  fi
+done
+
+if test -r "$cache_file"; then
+  echo "loading cache $cache_file"
+  . $cache_file
+else
+  echo "creating cache $cache_file"
+  > $cache_file
+fi
+
+ac_ext=c
+# CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
+ac_link='${CC-cc} -o conftest $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
+cross_compiling=$ac_cv_prog_cc_cross
+
+if (echo "testing\c"; echo 1,2,3) | grep c >/dev/null; then
+  # Stardent Vistra SVR4 grep lacks -e, says ghazi@caip.rutgers.edu.
+  if (echo -n testing; echo 1,2,3) | sed s/-n/xn/ | grep xn >/dev/null; then
+    ac_n= ac_c='
+' ac_t='	'
+  else
+    ac_n=-n ac_c= ac_t=
+  fi
+else
+  ac_n= ac_c='\c' ac_t=
+fi
+
+
+
+if test "${enable_shared}" = "yes" ; then
+    echo "Shared libraries not supported for cross compiling, ignored"
+fi
+
+if test "$srcdir" = "." ; then
+  if test "${with_target_subdir}" != "." ; then
+    libgloss_topdir="${with_multisrctop}../../.."
+  else
+    libgloss_topdir="${with_multisrctop}../.."
+  fi
+else
+  libgloss_topdir="${srcdir}/../.."
+fi
+
+ac_aux_dir=
+for ac_dir in $libgloss_topdir $srcdir/$libgloss_topdir; do
+  if test -f $ac_dir/install-sh; then
+    ac_aux_dir=$ac_dir
+    ac_install_sh="$ac_aux_dir/install-sh -c"
+    break
+  elif test -f $ac_dir/install.sh; then
+    ac_aux_dir=$ac_dir
+    ac_install_sh="$ac_aux_dir/install.sh -c"
+    break
+  fi
+done
+if test -z "$ac_aux_dir"; then
+  { echo "configure: error: can not find install-sh or install.sh in $libgloss_topdir $srcdir/$libgloss_topdir" 1>&2; exit 1; }
+fi
+ac_config_guess=$ac_aux_dir/config.guess
+ac_config_sub=$ac_aux_dir/config.sub
+ac_configure=$ac_aux_dir/configure # This should be Cygnus configure.
+
+
+# Find a good install program.  We prefer a C program (faster),
+# so one script is as good as another.  But avoid the broken or
+# incompatible versions:
+# SysV /etc/install, /usr/sbin/install
+# SunOS /usr/etc/install
+# IRIX /sbin/install
+# AIX /bin/install
+# AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag
+# AFS /usr/afsws/bin/install, which mishandles nonexistent args
+# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
+# ./install, which can be erroneously created by make from ./install.sh.
+echo $ac_n "checking for a BSD compatible install""... $ac_c" 1>&6
+echo "configure:570: checking for a BSD compatible install" >&5
+if test -z "$INSTALL"; then
+if eval "test \"`echo '$''{'ac_cv_path_install'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+    IFS="${IFS= 	}"; ac_save_IFS="$IFS"; IFS="${IFS}:"
+  for ac_dir in $PATH; do
+    # Account for people who put trailing slashes in PATH elements.
+    case "$ac_dir/" in
+    /|./|.//|/etc/*|/usr/sbin/*|/usr/etc/*|/sbin/*|/usr/afsws/bin/*|/usr/ucb/*) ;;
+    *)
+      # OSF1 and SCO ODT 3.0 have their own names for install.
+      # Don't use installbsd from OSF since it installs stuff as root
+      # by default.
+      for ac_prog in ginstall scoinst install; do
+        if test -f $ac_dir/$ac_prog; then
+	  if test $ac_prog = install &&
+            grep dspmsg $ac_dir/$ac_prog >/dev/null 2>&1; then
+	    # AIX install.  It has an incompatible calling convention.
+	    :
+	  else
+	    ac_cv_path_install="$ac_dir/$ac_prog -c"
+	    break 2
+	  fi
+	fi
+      done
+      ;;
+    esac
+  done
+  IFS="$ac_save_IFS"
+
+fi
+  if test "${ac_cv_path_install+set}" = set; then
+    INSTALL="$ac_cv_path_install"
+  else
+    # As a last resort, use the slow shell script.  We don't cache a
+    # path for INSTALL within a source directory, because that will
+    # break other packages using the cache if that directory is
+    # removed, or if the path is relative.
+    INSTALL="$ac_install_sh"
+  fi
+fi
+echo "$ac_t""$INSTALL" 1>&6
+
+# Use test -z because SunOS4 sh mishandles braces in ${var-val}.
+# It thinks the first close brace ends the variable substitution.
+test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'
+
+test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
+
+
+
+# Do some error checking and defaulting for the host and target type.
+# The inputs are:
+#    configure --host=HOST --target=TARGET --build=BUILD NONOPT
+#
+# The rules are:
+# 1. You are not allowed to specify --host, --target, and nonopt at the
+#    same time.
+# 2. Host defaults to nonopt.
+# 3. If nonopt is not specified, then host defaults to the current host,
+#    as determined by config.guess.
+# 4. Target and build default to nonopt.
+# 5. If nonopt is not specified, then target and build default to host.
+
+# The aliases save the names the user supplied, while $host etc.
+# will get canonicalized.
+case $host---$target---$nonopt in
+NONE---*---* | *---NONE---* | *---*---NONE) ;;
+*) { echo "configure: error: can only configure for one host and one target at a time" 1>&2; exit 1; } ;;
+esac
+
+
+# Make sure we can run config.sub.
+if ${CONFIG_SHELL-/bin/sh} $ac_config_sub sun4 >/dev/null 2>&1; then :
+else { echo "configure: error: can not run $ac_config_sub" 1>&2; exit 1; }
+fi
+
+echo $ac_n "checking host system type""... $ac_c" 1>&6
+echo "configure:649: checking host system type" >&5
+
+host_alias=$host
+case "$host_alias" in
+NONE)
+  case $nonopt in
+  NONE)
+    if host_alias=`${CONFIG_SHELL-/bin/sh} $ac_config_guess`; then :
+    else { echo "configure: error: can not guess host type; you must specify one" 1>&2; exit 1; }
+    fi ;;
+  *) host_alias=$nonopt ;;
+  esac ;;
+esac
+
+host=`${CONFIG_SHELL-/bin/sh} $ac_config_sub $host_alias`
+host_cpu=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
+host_vendor=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
+host_os=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
+echo "$ac_t""$host" 1>&6
+
+echo $ac_n "checking target system type""... $ac_c" 1>&6
+echo "configure:670: checking target system type" >&5
+
+target_alias=$target
+case "$target_alias" in
+NONE)
+  case $nonopt in
+  NONE) target_alias=$host_alias ;;
+  *) target_alias=$nonopt ;;
+  esac ;;
+esac
+
+target=`${CONFIG_SHELL-/bin/sh} $ac_config_sub $target_alias`
+target_cpu=`echo $target | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
+target_vendor=`echo $target | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
+target_os=`echo $target | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
+echo "$ac_t""$target" 1>&6
+
+echo $ac_n "checking build system type""... $ac_c" 1>&6
+echo "configure:688: checking build system type" >&5
+
+build_alias=$build
+case "$build_alias" in
+NONE)
+  case $nonopt in
+  NONE) build_alias=$host_alias ;;
+  *) build_alias=$nonopt ;;
+  esac ;;
+esac
+
+build=`${CONFIG_SHELL-/bin/sh} $ac_config_sub $build_alias`
+build_cpu=`echo $build | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\1/'`
+build_vendor=`echo $build | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\2/'`
+build_os=`echo $build | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
+echo "$ac_t""$build" 1>&6
+
+test "$host_alias" != "$target_alias" &&
+  test "$program_prefix$program_suffix$program_transform_name" = \
+    NONENONEs,x,x, &&
+  program_prefix=${target_alias}-
+
+
+# FIXME: We temporarily define our own version of AC_PROG_CC.  This is
+# copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS.  We
+# are probably using a cross compiler, which will not be able to fully
+# link an executable.  This should really be fixed in autoconf
+# itself.
+
+
+
+# Extract the first word of "gcc", so it can be a program name with args.
+set dummy gcc; ac_word=$2
+echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
+echo "configure:722: checking for $ac_word" >&5
+if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:"
+  for ac_dir in $PATH; do
+    test -z "$ac_dir" && ac_dir=.
+    if test -f $ac_dir/$ac_word; then
+      ac_cv_prog_CC="gcc"
+      break
+    fi
+  done
+  IFS="$ac_save_ifs"
+fi
+fi
+CC="$ac_cv_prog_CC"
+if test -n "$CC"; then
+  echo "$ac_t""$CC" 1>&6
+else
+  echo "$ac_t""no" 1>&6
+fi
+
+if test -z "$CC"; then
+  # Extract the first word of "cc", so it can be a program name with args.
+set dummy cc; ac_word=$2
+echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
+echo "configure:751: checking for $ac_word" >&5
+if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:"
+  ac_prog_rejected=no
+  for ac_dir in $PATH; do
+    test -z "$ac_dir" && ac_dir=.
+    if test -f $ac_dir/$ac_word; then
+      if test "$ac_dir/$ac_word" = "/usr/ucb/cc"; then
+        ac_prog_rejected=yes
+	continue
+      fi
+      ac_cv_prog_CC="cc"
+      break
+    fi
+  done
+  IFS="$ac_save_ifs"
+if test $ac_prog_rejected = yes; then
+  # We found a bogon in the path, so make sure we never use it.
+  set dummy $ac_cv_prog_CC
+  shift
+  if test $# -gt 0; then
+    # We chose a different compiler from the bogus one.
+    # However, it has the same basename, so the bogon will be chosen
+    # first if we set CC to just the basename; use the full file name.
+    shift
+    set dummy "$ac_dir/$ac_word" "$@"
+    shift
+    ac_cv_prog_CC="$@"
+  fi
+fi
+fi
+fi
+CC="$ac_cv_prog_CC"
+if test -n "$CC"; then
+  echo "$ac_t""$CC" 1>&6
+else
+  echo "$ac_t""no" 1>&6
+fi
+
+  test -z "$CC" && { echo "configure: error: no acceptable cc found in \$PATH" 1>&2; exit 1; }
+fi
+
+echo $ac_n "checking whether we are using GNU C""... $ac_c" 1>&6
+echo "configure:799: checking whether we are using GNU C" >&5
+if eval "test \"`echo '$''{'ac_cv_prog_gcc'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.c <<EOF
+#ifdef __GNUC__
+  yes;
+#endif
+EOF
+if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:808: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
+  ac_cv_prog_gcc=yes
+else
+  ac_cv_prog_gcc=no
+fi
+fi
+
+echo "$ac_t""$ac_cv_prog_gcc" 1>&6
+
+if test $ac_cv_prog_gcc = yes; then
+  GCC=yes
+  ac_test_CFLAGS="${CFLAGS+set}"
+  ac_save_CFLAGS="$CFLAGS"
+  CFLAGS=
+  echo $ac_n "checking whether ${CC-cc} accepts -g""... $ac_c" 1>&6
+echo "configure:823: checking whether ${CC-cc} accepts -g" >&5
+if eval "test \"`echo '$''{'ac_cv_prog_cc_g'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  echo 'void f(){}' > conftest.c
+if test -z "`${CC-cc} -g -c conftest.c 2>&1`"; then
+  ac_cv_prog_cc_g=yes
+else
+  ac_cv_prog_cc_g=no
+fi
+rm -f conftest*
+
+fi
+
+echo "$ac_t""$ac_cv_prog_cc_g" 1>&6
+  if test "$ac_test_CFLAGS" = set; then
+    CFLAGS="$ac_save_CFLAGS"
+  elif test $ac_cv_prog_cc_g = yes; then
+    CFLAGS="-g -O2"
+  else
+    CFLAGS="-O2"
+  fi
+else
+  GCC=
+  test "${CFLAGS+set}" = set || CFLAGS="-g"
+fi
+
+AS=${AS-as}
+
+AR=${AR-ar}
+
+LD=${LD-ld}
+
+# Extract the first word of "ranlib", so it can be a program name with args.
+set dummy ranlib; ac_word=$2
+echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
+echo "configure:859: checking for $ac_word" >&5
+if eval "test \"`echo '$''{'ac_cv_prog_RANLIB'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  if test -n "$RANLIB"; then
+  ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test.
+else
+  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:"
+  for ac_dir in $PATH; do
+    test -z "$ac_dir" && ac_dir=.
+    if test -f $ac_dir/$ac_word; then
+      ac_cv_prog_RANLIB="ranlib"
+      break
+    fi
+  done
+  IFS="$ac_save_ifs"
+  test -z "$ac_cv_prog_RANLIB" && ac_cv_prog_RANLIB=":"
+fi
+fi
+RANLIB="$ac_cv_prog_RANLIB"
+if test -n "$RANLIB"; then
+  echo "$ac_t""$RANLIB" 1>&6
+else
+  echo "$ac_t""no" 1>&6
+fi
+
+
+case ${target_cpu} in
+sparclite*) CPU=SLITE ;;
+sparclet*) CPU=SPLET ;;
+sparc64*) CPU=SPARC64 ;;
+sparc86x*) CPU=SLITE ;;
+*) CPU=SPARC ;;
+esac
+
+
+case ${target_cpu} in
+sparc64*) CYGMONLDSCRIPTTEMPL=${srcdir}/cygmon-sparc64-ld.src ;;
+*) CYGMONLDSCRIPTTEMPL=${srcdir}/cygmon.ld.src
+esac
+
+host_makefile_frag=${srcdir}/../config/default.mh
+target_makefile_frag=${srcdir}/../config/default.mt
+
+host_makefile_frag_path=$host_makefile_frag
+
+
+target_makefile_frag_path=$target_makefile_frag
+
+
+
+
+trap '' 1 2 15
+cat > confcache <<\EOF
+# This file is a shell script that caches the results of configure
+# tests run on this system so they can be shared between configure
+# scripts and configure runs.  It is not useful on other systems.
+# If it contains results you don't want to keep, you may remove or edit it.
+#
+# By default, configure uses ./config.cache as the cache file,
+# creating it if it does not exist already.  You can give configure
+# the --cache-file=FILE option to use a different cache file; that is
+# what configure does when it calls configure scripts in
+# subdirectories, so they share the cache.
+# Giving --cache-file=/dev/null disables caching, for debugging configure.
+# config.status only pays attention to the cache file if you give it the
+# --recheck option to rerun configure.
+#
+EOF
+# The following way of writing the cache mishandles newlines in values,
+# but we know of no workaround that is simple, portable, and efficient.
+# So, don't put newlines in cache variables' values.
+# Ultrix sh set writes to stderr and can't be redirected directly,
+# and sets the high bit in the cache file unless we assign to the vars.
+(set) 2>&1 |
+  case `(ac_space=' '; set) 2>&1` in
+  *ac_space=\ *)
+    # `set' does not quote correctly, so add quotes (double-quote substitution
+    # turns \\\\ into \\, and sed turns \\ into \).
+    sed -n \
+      -e "s/'/'\\\\''/g" \
+      -e "s/^\\([a-zA-Z0-9_]*_cv_[a-zA-Z0-9_]*\\)=\\(.*\\)/\\1=\${\\1='\\2'}/p"
+    ;;
+  *)
+    # `set' quotes correctly as required by POSIX, so do not add quotes.
+    sed -n -e 's/^\([a-zA-Z0-9_]*_cv_[a-zA-Z0-9_]*\)=\(.*\)/\1=${\1=\2}/p'
+    ;;
+  esac >> confcache
+if cmp -s $cache_file confcache; then
+  :
+else
+  if test -w $cache_file; then
+    echo "updating cache $cache_file"
+    cat confcache > $cache_file
+  else
+    echo "not updating unwritable cache $cache_file"
+  fi
+fi
+rm -f confcache
+
+trap 'rm -fr conftest* confdefs* core core.* *.core $ac_clean_files; exit 1' 1 2 15
+
+test "x$prefix" = xNONE && prefix=$ac_default_prefix
+# Let make expand exec_prefix.
+test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
+
+# Any assignment to VPATH causes Sun make to only execute
+# the first set of double-colon rules, so remove it if not needed.
+# If there is a colon in the path, we need to keep it.
+if test "x$srcdir" = x.; then
+  ac_vpsub='/^[ 	]*VPATH[ 	]*=[^:]*$/d'
+fi
+
+trap 'rm -f $CONFIG_STATUS conftest*; exit 1' 1 2 15
+
+# Transform confdefs.h into DEFS.
+# Protect against shell expansion while executing Makefile rules.
+# Protect against Makefile macro expansion.
+cat > conftest.defs <<\EOF
+s%#define \([A-Za-z_][A-Za-z0-9_]*\) *\(.*\)%-D\1=\2%g
+s%[ 	`~#$^&*(){}\\|;'"<>?]%\\&%g
+s%\[%\\&%g
+s%\]%\\&%g
+s%\$%$$%g
+EOF
+DEFS=`sed -f conftest.defs confdefs.h | tr '\012' ' '`
+rm -f conftest.defs
+
+
+# Without the "./", some shells look in PATH for config.status.
+: ${CONFIG_STATUS=./config.status}
+
+echo creating $CONFIG_STATUS
+rm -f $CONFIG_STATUS
+cat > $CONFIG_STATUS <<EOF
+#! /bin/sh
+# Generated automatically by configure.
+# Run this file to recreate the current configuration.
+# This directory was configured as follows,
+# on host `(hostname || uname -n) 2>/dev/null | sed 1q`:
+#
+# $0 $ac_configure_args
+#
+# Compiler output produced by configure, useful for debugging
+# configure, is in ./config.log if it exists.
+
+ac_cs_usage="Usage: $CONFIG_STATUS [--recheck] [--version] [--help]"
+for ac_option
+do
+  case "\$ac_option" in
+  -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r)
+    echo "running \${CONFIG_SHELL-/bin/sh} $0 $ac_configure_args --no-create --no-recursion"
+    exec \${CONFIG_SHELL-/bin/sh} $0 $ac_configure_args --no-create --no-recursion ;;
+  -version | --version | --versio | --versi | --vers | --ver | --ve | --v)
+    echo "$CONFIG_STATUS generated by autoconf version 2.12.1"
+    exit 0 ;;
+  -help | --help | --hel | --he | --h)
+    echo "\$ac_cs_usage"; exit 0 ;;
+  *) echo "\$ac_cs_usage"; exit 1 ;;
+  esac
+done
+
+ac_given_srcdir=$srcdir
+ac_given_INSTALL="$INSTALL"
+
+trap 'rm -fr `echo "Makefile" | sed "s/:[^ ]*//g"` conftest*; exit 1' 1 2 15
+EOF
+cat >> $CONFIG_STATUS <<EOF
+
+# Protect against being on the right side of a sed subst in config.status.
+sed 's/%@/@@/; s/@%/@@/; s/%g\$/@g/; /@g\$/s/[\\\\&%]/\\\\&/g;
+ s/@@/%@/; s/@@/@%/; s/@g\$/%g/' > conftest.subs <<\\CEOF
+$ac_vpsub
+$extrasub
+s%@SHELL@%$SHELL%g
+s%@CFLAGS@%$CFLAGS%g
+s%@CPPFLAGS@%$CPPFLAGS%g
+s%@CXXFLAGS@%$CXXFLAGS%g
+s%@DEFS@%$DEFS%g
+s%@LDFLAGS@%$LDFLAGS%g
+s%@LIBS@%$LIBS%g
+s%@exec_prefix@%$exec_prefix%g
+s%@prefix@%$prefix%g
+s%@program_transform_name@%$program_transform_name%g
+s%@bindir@%$bindir%g
+s%@sbindir@%$sbindir%g
+s%@libexecdir@%$libexecdir%g
+s%@datadir@%$datadir%g
+s%@sysconfdir@%$sysconfdir%g
+s%@sharedstatedir@%$sharedstatedir%g
+s%@localstatedir@%$localstatedir%g
+s%@libdir@%$libdir%g
+s%@includedir@%$includedir%g
+s%@oldincludedir@%$oldincludedir%g
+s%@infodir@%$infodir%g
+s%@mandir@%$mandir%g
+s%@INSTALL_PROGRAM@%$INSTALL_PROGRAM%g
+s%@INSTALL_DATA@%$INSTALL_DATA%g
+s%@host@%$host%g
+s%@host_alias@%$host_alias%g
+s%@host_cpu@%$host_cpu%g
+s%@host_vendor@%$host_vendor%g
+s%@host_os@%$host_os%g
+s%@target@%$target%g
+s%@target_alias@%$target_alias%g
+s%@target_cpu@%$target_cpu%g
+s%@target_vendor@%$target_vendor%g
+s%@target_os@%$target_os%g
+s%@build@%$build%g
+s%@build_alias@%$build_alias%g
+s%@build_cpu@%$build_cpu%g
+s%@build_vendor@%$build_vendor%g
+s%@build_os@%$build_os%g
+s%@CC@%$CC%g
+s%@AS@%$AS%g
+s%@AR@%$AR%g
+s%@LD@%$LD%g
+s%@RANLIB@%$RANLIB%g
+s%@CPU@%$CPU%g
+s%@host_makefile_frag_path@%$host_makefile_frag_path%g
+/@host_makefile_frag@/r $host_makefile_frag
+s%@host_makefile_frag@%%g
+s%@target_makefile_frag_path@%$target_makefile_frag_path%g
+/@target_makefile_frag@/r $target_makefile_frag
+s%@target_makefile_frag@%%g
+s%@CYGMONLDSCRIPTTEMPL@%$CYGMONLDSCRIPTTEMPL%g
+
+CEOF
+EOF
+
+cat >> $CONFIG_STATUS <<\EOF
+
+# Split the substitutions into bite-sized pieces for seds with
+# small command number limits, like on Digital OSF/1 and HP-UX.
+ac_max_sed_cmds=90 # Maximum number of lines to put in a sed script.
+ac_file=1 # Number of current file.
+ac_beg=1 # First line for current file.
+ac_end=$ac_max_sed_cmds # Line after last line for current file.
+ac_more_lines=:
+ac_sed_cmds=""
+while $ac_more_lines; do
+  if test $ac_beg -gt 1; then
+    sed "1,${ac_beg}d; ${ac_end}q" conftest.subs > conftest.s$ac_file
+  else
+    sed "${ac_end}q" conftest.subs > conftest.s$ac_file
+  fi
+  if test ! -s conftest.s$ac_file; then
+    ac_more_lines=false
+    rm -f conftest.s$ac_file
+  else
+    if test -z "$ac_sed_cmds"; then
+      ac_sed_cmds="sed -f conftest.s$ac_file"
+    else
+      ac_sed_cmds="$ac_sed_cmds | sed -f conftest.s$ac_file"
+    fi
+    ac_file=`expr $ac_file + 1`
+    ac_beg=$ac_end
+    ac_end=`expr $ac_end + $ac_max_sed_cmds`
+  fi
+done
+if test -z "$ac_sed_cmds"; then
+  ac_sed_cmds=cat
+fi
+EOF
+
+cat >> $CONFIG_STATUS <<EOF
+
+CONFIG_FILES=\${CONFIG_FILES-"Makefile"}
+EOF
+cat >> $CONFIG_STATUS <<\EOF
+for ac_file in .. $CONFIG_FILES; do if test "x$ac_file" != x..; then
+  # Support "outfile[:infile[:infile...]]", defaulting infile="outfile.in".
+  case "$ac_file" in
+  *:*) ac_file_in=`echo "$ac_file"|sed 's%[^:]*:%%'`
+       ac_file=`echo "$ac_file"|sed 's%:.*%%'` ;;
+  *) ac_file_in="${ac_file}.in" ;;
+  esac
+
+  # Adjust a relative srcdir, top_srcdir, and INSTALL for subdirectories.
+
+  # Remove last slash and all that follows it.  Not all systems have dirname.
+  ac_dir=`echo $ac_file|sed 's%/[^/][^/]*$%%'`
+  if test "$ac_dir" != "$ac_file" && test "$ac_dir" != .; then
+    # The file is in a subdirectory.
+    test ! -d "$ac_dir" && mkdir "$ac_dir"
+    ac_dir_suffix="/`echo $ac_dir|sed 's%^\./%%'`"
+    # A "../" for each directory in $ac_dir_suffix.
+    ac_dots=`echo $ac_dir_suffix|sed 's%/[^/]*%../%g'`
+  else
+    ac_dir_suffix= ac_dots=
+  fi
+
+  case "$ac_given_srcdir" in
+  .)  srcdir=.
+      if test -z "$ac_dots"; then top_srcdir=.
+      else top_srcdir=`echo $ac_dots|sed 's%/$%%'`; fi ;;
+  /*) srcdir="$ac_given_srcdir$ac_dir_suffix"; top_srcdir="$ac_given_srcdir" ;;
+  *) # Relative path.
+    srcdir="$ac_dots$ac_given_srcdir$ac_dir_suffix"
+    top_srcdir="$ac_dots$ac_given_srcdir" ;;
+  esac
+
+  case "$ac_given_INSTALL" in
+  [/$]*) INSTALL="$ac_given_INSTALL" ;;
+  *) INSTALL="$ac_dots$ac_given_INSTALL" ;;
+  esac
+
+  echo creating "$ac_file"
+  rm -f "$ac_file"
+  configure_input="Generated automatically from `echo $ac_file_in|sed 's%.*/%%'` by configure."
+  case "$ac_file" in
+  *Makefile*) ac_comsub="1i\\
+# $configure_input" ;;
+  *) ac_comsub= ;;
+  esac
+
+  ac_file_inputs=`echo $ac_file_in|sed -e "s%^%$ac_given_srcdir/%" -e "s%:% $ac_given_srcdir/%g"`
+  sed -e "$ac_comsub
+s%@configure_input@%$configure_input%g
+s%@srcdir@%$srcdir%g
+s%@top_srcdir@%$top_srcdir%g
+s%@INSTALL@%$INSTALL%g
+" $ac_file_inputs | (eval "$ac_sed_cmds") > $ac_file
+fi; done
+rm -f conftest.s*
+
+EOF
+cat >> $CONFIG_STATUS <<EOF
+srcdir=${srcdir}
+target=${target}
+ac_configure_args="${ac_configure_args} --enable-multilib"
+CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
+libgloss_topdir=${libgloss_topdir}
+
+EOF
+cat >> $CONFIG_STATUS <<\EOF
+. ${libgloss_topdir}/config-ml.in
+exit 0
+EOF
+chmod +x $CONFIG_STATUS
+rm -fr confdefs* $ac_clean_files
+test "$no_create" = yes || ${CONFIG_SHELL-/bin/sh} $CONFIG_STATUS || exit 1
+
+
diff --git a/libgloss/sparc/configure.in b/libgloss/sparc/configure.in
new file mode 100644
index 0000000..c836f6c
--- /dev/null
+++ b/libgloss/sparc/configure.in
@@ -0,0 +1,120 @@
+# Copyright (c) 1995, 1996 Cygnus Support
+#
+# The authors hereby grant permission to use, copy, modify, distribute,
+# and license this software and its documentation for any purpose, provided
+# that existing copyright notices are retained in all copies and that this
+# notice is included verbatim in any distributions. No written agreement,
+# license, or royalty fee is required for any of the authorized uses.
+# Modifications to this software may be copyrighted by their authors
+# and need not follow the licensing terms described here, provided that
+# the new terms are clearly indicated on the first page of each file where
+# they apply.
+dnl Process this file with autoconf to produce a configure script.
+AC_PREREQ(2.5)dnl
+AC_INIT(sparc-stub.c)
+
+if test "${enable_shared}" = "yes" ; then
+    echo "Shared libraries not supported for cross compiling, ignored"
+fi
+
+if test "$srcdir" = "." ; then
+  if test "${with_target_subdir}" != "." ; then
+    libgloss_topdir="${with_multisrctop}../../.."
+  else
+    libgloss_topdir="${with_multisrctop}../.."
+  fi
+else
+  libgloss_topdir="${srcdir}/../.."
+fi
+
+AC_CONFIG_AUX_DIR($libgloss_topdir)
+
+AC_PROG_INSTALL
+
+AC_CANONICAL_SYSTEM
+
+# FIXME: We temporarily define our own version of AC_PROG_CC.  This is
+# copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS.  We
+# are probably using a cross compiler, which will not be able to fully
+# link an executable.  This should really be fixed in autoconf
+# itself.
+
+AC_DEFUN(LIB_AC_PROG_CC,
+[AC_BEFORE([$0], [AC_PROG_CPP])dnl
+AC_CHECK_PROG(CC, gcc, gcc)
+if test -z "$CC"; then
+  AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc)
+  test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH])
+fi
+
+AC_PROG_CC_GNU
+
+if test $ac_cv_prog_gcc = yes; then
+  GCC=yes
+dnl Check whether -g works, even if CFLAGS is set, in case the package
+dnl plays around with CFLAGS (such as to build both debugging and
+dnl normal versions of a library), tasteless as that idea is.
+  ac_test_CFLAGS="${CFLAGS+set}"
+  ac_save_CFLAGS="$CFLAGS"
+  CFLAGS=
+  AC_PROG_CC_G
+  if test "$ac_test_CFLAGS" = set; then
+    CFLAGS="$ac_save_CFLAGS"
+  elif test $ac_cv_prog_cc_g = yes; then
+    CFLAGS="-g -O2"
+  else
+    CFLAGS="-O2"
+  fi
+else
+  GCC=
+  test "${CFLAGS+set}" = set || CFLAGS="-g"
+fi
+])
+
+LIB_AC_PROG_CC
+AS=${AS-as}
+AC_SUBST(AS)
+AR=${AR-ar}
+AC_SUBST(AR)
+LD=${LD-ld}
+AC_SUBST(LD)
+AC_PROG_RANLIB
+
+case ${target_cpu} in
+sparclite*) CPU=SLITE ;;
+sparclet*) CPU=SPLET ;;
+sparc64*) CPU=SPARC64 ;;
+sparc86x*) CPU=SLITE ;;
+*) CPU=SPARC ;;
+esac
+AC_SUBST(CPU)
+
+case ${target_cpu} in
+sparc64*) CYGMONLDSCRIPTTEMPL=${srcdir}/cygmon-sparc64-ld.src ;;
+*) CYGMONLDSCRIPTTEMPL=${srcdir}/cygmon.ld.src
+esac
+
+host_makefile_frag=${srcdir}/../config/default.mh
+target_makefile_frag=${srcdir}/../config/default.mt
+
+dnl We have to assign the same value to other variables because autoconf
+dnl doesn't provide a mechanism to substitute a replacement keyword with
+dnl arbitrary data or pathnames.
+dnl
+host_makefile_frag_path=$host_makefile_frag
+AC_SUBST(host_makefile_frag_path)
+AC_SUBST_FILE(host_makefile_frag)
+target_makefile_frag_path=$target_makefile_frag
+AC_SUBST(target_makefile_frag_path)
+AC_SUBST_FILE(target_makefile_frag)
+AC_SUBST(CYGMONLDSCRIPTTEMPL)
+
+AC_OUTPUT(Makefile,
+. ${libgloss_topdir}/config-ml.in,
+srcdir=${srcdir}
+target=${target}
+ac_configure_args="${ac_configure_args} --enable-multilib"
+CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
+libgloss_topdir=${libgloss_topdir}
+)
+
diff --git a/libgloss/sparc/crt0-701.S b/libgloss/sparc/crt0-701.S
new file mode 100644
index 0000000..44ffadc
--- /dev/null
+++ b/libgloss/sparc/crt0-701.S
@@ -0,0 +1,105 @@
+/* crt0.S for the sparclet 701.
+
+   At the moment, all the necessary syscalls are here.
+   Convention has them in a separate file but libgloss is still in
+   too much flux.  */
+
+	.text
+
+	.global start
+start:
+
+! zero bss
+
+	sethi %hi(_end), %o1
+	or %o1, %lo(_end), %o1
+	sethi %hi(_edata), %o0
+	or %o0, %lo (_edata), %o0
+	sub %o1, %o0, %o1
+Lzero_bss:
+	subcc %o1, 4, %o1
+	clr [%o0]
+	bne Lzero_bss
+	add %o0, 4, %o0
+
+! set up argc, argv, envp (?)
+
+	ld [%sp+64], %o0
+	sll %o0, 2, %o2
+	add %o2, 4, %o2
+	add %sp, 68, %o1
+	add %o1, %o2, %o2
+	sethi %hi(_environ), %o3
+	st %o2, [%o3+%lo(_environ)]
+
+! call main, exit
+
+	call _main
+	sub %sp, 32, %sp
+	call _exit
+	nop
+
+! void _exit (int rc)
+
+	.global __exit
+__exit:
+	mov 1, %g1
+	ta 0
+! If that does not work, just loop forever.
+Lloop_forever:
+	b Lloop_forever
+	nop
+
+! int _open (char *, int)
+
+	.global _open
+_open:
+	mov 5, %g1
+	ta 0
+	bcc Lnoerr
+	nop
+	b Lcerror
+	nop
+
+! int _close (int)
+
+	.global _close
+_close:
+	mov 6, %g1
+	ta 0
+	bcc Lnoerr
+	nop
+	b Lcerror
+	nop
+
+! int read (int, char *, int)
+
+	.global _read
+_read:
+	mov 3, %g1
+	ta 0
+	bcc Lnoerr
+	nop
+	b Lcerror
+	nop
+
+! int write (int, char *, int)
+
+	.global _write
+_write:
+	mov 4, %g1
+	ta 0
+	bcc Lnoerr
+	nop
+	b Lcerror
+	nop
+
+Lnoerr:
+	retl
+	nop
+
+Lcerror:
+	sethi %hi(__impure_ptr), %g1
+	st %o0, [%g1+%lo(__impure_ptr)]
+	retl
+	mov -1, %o0
diff --git a/libgloss/sparc/crt0.S b/libgloss/sparc/crt0.S
new file mode 100644
index 0000000..90e18c5
--- /dev/null
+++ b/libgloss/sparc/crt0.S
@@ -0,0 +1,186 @@
+/*
+ * C startup code for the Fujitsu SPARClite demo board
+ *
+ * Copyright (c) 1995, 1996 Cygnus Support
+ *
+ * The authors hereby grant permission to use, copy, modify, distribute,
+ * and license this software and its documentation for any purpose, provided
+ * that existing copyright notices are retained in all copies and that this
+ * notice is included verbatim in any distributions. No written agreement,
+ * license, or royalty fee is required for any of the authorized uses.
+ * Modifications to this software may be copyrighted by their authors
+ * and need not follow the licensing terms described here, provided that
+ * the new terms are clearly indicated on the first page of each file where
+ * they apply.
+ */
+#include "asm.h"
+	
+.data
+        .align  8
+	.ascii	"DaTa"		! this is the first address in the data section
+	.long	SYM(sdata)
+SYM(environ):
+        .long   0
+
+	.text
+	.align 8
+
+	.globl SYM(_start)
+SYM(_start):
+	.globl SYM(start)
+SYM(start):
+	/* see if the stack is already setup. if not, then default
+         *  to using the value of %sp as set by the ROM monitor
+         */
+	sethi	%hi(__stack), %g1
+        or      %g1,%lo(__stack),%g1
+        cmp     %g0,%g1
+        be      1f
+	mov	%g1, %sp				! set the stack pointer
+        mov     %sp, %fp
+1:	
+
+	/* zero the bss section */
+        sethi %hi(__bss_start),%g2
+        or    %g2,%lo(__bss_start),%g2		! start of bss
+        sethi %hi(_end),%g3
+        or    %g3,%lo(_end),%g3			! end of bss
+        mov   %g0,%g1				! so std has two zeros
+zerobss:
+        std    %g0,[%g2]
+        add    %g2,8,%g2
+        cmp    %g2,%g3
+        bleu,a zerobss
+        nop
+	
+/*
+ * copy prom & trap vectors to sram.
+ */
+	set 0x30000000, %l0
+	set 0xfff8, %l1
+	tst %l1					! Set condition codes
+
+copyloop:
+	ldd [%l1], %l2
+	std %l2, [%l0 + %l1]
+	bg copyloop
+	deccc 8, %l1
+
+	set 0x30000000, %l0			! Base of new trap vector
+	mov %l0, %tbr				! Install the new tbr
+
+	set SYM(win_ovf_trap), %l1		! Setup window overflow trap
+	ldd [%l1], %l2
+	std %l2, [%l0 + 5 * 16]
+	ldd [%l1 + 8], %l2
+	std %l2, [%l0 + 5 * 16 + 8]
+
+	set SYM(win_unf_trap), %l1		! Setup window underflow trap
+	ldd [%l1], %l2
+	std %l2, [%l0 + 6 * 16]
+	ldd [%l1 + 8], %l2
+	std %l2, [%l0 + 6 * 16 + 8]
+
+/*
+ * Try enabling the FPU by setting EF.  If that causes a trap, then we probably
+ * don't have an FPU.
+ */
+
+	ldd [%l0 + 2 * 16], %l4			! Save original trap routine
+	set SYM(no_fpu_trap), %l1		! Install new one
+	ldd [%l1], %l2
+	std %l2, [%l0 + 2 * 16]
+
+	mov %psr, %l0
+	sethi %hi(0x1000), %l1
+	bset %l1, %l0
+!	mov %l0, %psr
+
+	std %l4, [2 * 16]			! Restore original trap routine
+
+
+/*
+ * Move the data segment from it's ROM address to RAM where it
+ * belongs. 
+ */
+
+relocd:
+#if 0	/* This code is broken.  FIXME */
+        set (_sdata),%g2			! %g2 = start of data in aout file
+        set SYM(environ),%g4			! %g4 = actual data base address
+        set (_edata),%g3			! %g3 = end of where data should go
+        subcc   %g3, %g4, %g5			! %g5 = length of data
+
+        subcc   %g4, %g2, %g0			! need to relocate data ?
+        ble     init
+        ld      [%g4], %g6
+        subcc   %g6, 1, %g0
+        be      init
+mvdata:
+        subcc   %g5, 8, %g5
+        ldd     [%g2 + %g5], %g6
+        bg      mvdata
+#endif
+
+/*
+ * initialize target specific stuff. Only execute these
+ * functions it they exist.
+ */
+init:
+	sethi	%hi(SYM(hardware_init_hook)), %g1
+        or      %g1,%lo(SYM(hardware_init_hook)),%g1
+	cmp	%g0,%g1
+	be	1f
+	nop
+	call	SYM(hardware_init_hook)
+	nop
+
+1:	
+	sethi	%hi(SYM(software_init_hook)), %g1
+        or      %g1,%lo(SYM(software_init_hook)),%g1
+	cmp	%g0,%g1
+	be	2f
+	nop
+	call	SYM(software_init_hook)
+	nop
+2:
+	call SYM(main)
+	nop
+
+	/* call exit from the C library so atexit gets called, and the
+	 * C++ destructors get run. This calls our exit routine below	 
+	 * when it's done.
+	 */
+	call	SYM(exit)
+	nop
+
+/*
+ * This should drop control back to the ROM monitor, if there is
+ * one.
+ */
+	.globl	SYM(_exit)
+SYM(_exit):
+	call	0
+	nop
+
+/*
+ * Trap handlers.
+ */
+
+	.align 8
+
+SYM(win_ovf_trap):
+	sethi %hi(SYM(win_ovf)), %l3
+	jmpl %lo(SYM(win_ovf))+%l3, %g0
+	mov %wim, %l0
+	nop
+
+SYM(win_unf_trap):
+	sethi %hi(SYM(win_unf)), %l3
+	jmpl %lo(SYM(win_unf))+%l3, %g0
+	mov %wim, %l0
+	nop
+	
+SYM(no_fpu_trap):			! Come here when no fpu exists.
+	jmpl %l2, %g0			! This just skips the
+        rett %l2+4			! offending instruction.
diff --git a/libgloss/sparc/cygmon-crt0.S b/libgloss/sparc/cygmon-crt0.S
new file mode 100644
index 0000000..272c00d
--- /dev/null
+++ b/libgloss/sparc/cygmon-crt0.S
@@ -0,0 +1,144 @@
+/*
+ * C startup code for the Fujitsu SPARClite demo board
+ *
+ * Copyright (c) 1995, 1996 Cygnus Support
+ *
+ * The authors hereby grant permission to use, copy, modify, distribute,
+ * and license this software and its documentation for any purpose, provided
+ * that existing copyright notices are retained in all copies and that this
+ * notice is included verbatim in any distributions. No written agreement,
+ * license, or royalty fee is required for any of the authorized uses.
+ * Modifications to this software may be copyrighted by their authors
+ * and need not follow the licensing terms described here, provided that
+ * the new terms are clearly indicated on the first page of each file where
+ * they apply.
+ */
+#include "asm.h"
+
+#ifdef TARGET_CPU_SPARC64
+#define STACK_BIAS 2047
+#define SAVE_SIZE -128
+#else
+#define SAVE_SIZE -64
+#endif
+	
+.data
+        .align  8
+SYM(environ):			! this is the first address in the data section
+        .long   0
+
+SYM(argc):
+	.long	0
+
+	.text
+	.align 8
+
+	.globl SYM(start)
+	.globl start
+SYM(start):
+start:
+	/* see if the stack is already setup. if not, then default
+         *  to using the value of %sp as set by the ROM monitor
+         */
+	sethi	%hi(__stack), %g1
+        or      %g1,%lo(__stack),%g1
+        cmp     %g0,%g1
+        be      1f
+	nop
+#ifdef STACK_BIAS
+	sub	%g1, STACK_BIAS, %g1
+#endif
+	mov	%g1, %sp				! set the stack pointer
+        mov     0, %fp
+1:	
+
+	/* zero the bss section */
+        sethi %hi(__bss_start),%g2
+        or    %g2,%lo(__bss_start),%g2		! start of bss
+        sethi %hi(_end),%g3
+        or    %g3,%lo(_end),%g3			! end of bss
+        mov   %g0,%g1				! so std has two zeros
+zerobss:
+        std    %g0,[%g2]
+        add    %g2,8,%g2
+        cmp    %g2,%g3
+        bleu,a zerobss
+        nop
+	
+/*
+ * initialize target specific stuff. Only execute these
+ * functions it they exist.
+ */
+init:
+	sethi	%hi(SYM(hardware_init_hook)), %g1
+        or      %g1,%lo(SYM(hardware_init_hook)),%g1
+	cmp	%g0,%g1
+	be	1f
+	nop
+	call	SYM(hardware_init_hook)
+	nop
+
+1:	
+	sethi	%hi(SYM(software_init_hook)), %g1
+        or      %g1,%lo(SYM(software_init_hook)),%g1
+	cmp	%g0,%g1
+	be	2f
+	nop
+	call	SYM(software_init_hook)
+	nop
+2:
+	set	SYM(__sigtramp), %o0
+	call	SYM(__install_signal_handler)
+	nop
+
+	set	do_dtors,%o0
+	call	SYM(atexit)
+	nop
+
+	call	do_ctors
+	nop
+
+	set	SYM(argc), %o0
+	call	SYM(__getProgramArgs)
+	nop
+
+	mov	%o0, %o1
+	set	SYM(argc), %o0
+	ld	[%o0], %o0
+	call SYM(main)
+	nop
+
+	/* call exit from the C library so atexit gets called, and the
+	 * C++ destructors get run. This calls our exit routine below	 
+	 * when it's done.
+	 */
+	call	SYM(exit)
+	nop
+
+do_ctors:
+	save	%sp,SAVE_SIZE,%sp
+	set	__CTOR_LIST__,%l0
+our_entry:
+	ld	[%l0],%l1
+	add	%l0,4,%l0
+	tst	%l1
+1:
+	beq	2f
+	nop
+	ld	[%l0],%l2
+	add	%l0,4,%l0
+
+	call	%l2
+	nop
+	deccc	%l1
+	b	1b
+	nop
+2:
+	ret
+	restore
+
+do_dtors:
+	save	%sp,SAVE_SIZE,%sp
+	set	__DTOR_LIST__,%l0
+	b	our_entry
+	nop
diff --git a/libgloss/sparc/cygmon-salib.c b/libgloss/sparc/cygmon-salib.c
new file mode 100644
index 0000000..4f65c0f
--- /dev/null
+++ b/libgloss/sparc/cygmon-salib.c
@@ -0,0 +1,220 @@
+#ifdef TARGET_CPU_SPARC64
+#include <sys/types.h>
+#endif
+#include <sys/time.h>
+
+void
+putTtyChar(int c)
+{
+  /* 2 is fork under solaris; bad juju */
+  asm("	mov %i0,%o0
+	or %g0,2,%g1
+	ta 8
+	nop");
+}
+
+int
+write(int fd,char *ptr,int amt)
+{
+  if (fd < 0 || fd > 2)
+    {
+      return -1;
+    }
+  asm(" or %g0, 4, %g1
+	ta 8
+	nop");
+  return amt;
+}
+
+int
+read(int fd,char *ptr,int amt)
+{
+  if (fd < 0 || fd > 2)
+    {
+      return -1;
+    }
+  asm(" or %g0, 3, %g1
+	ta 8
+	nop");
+  return amt;
+}
+
+void
+_exit(int code)
+{
+  while(1) {
+    asm("	or %g0,1,%g1
+		ta 8
+		nop
+		ta 1
+		nop");
+  }
+}
+
+int
+setitimer(int which, const struct itimerval *value, struct itimerval *ovalue)
+{
+  asm(" or %g0, 158, %g1
+	ta 8
+	nop");
+}
+
+
+
+long
+sbrk (unsigned long amt)
+{
+  extern char _end;
+  static char *ptr = 0;
+  char *res;
+  if (ptr == 0)
+    ptr = &_end;
+  if (amt == 0)
+    return (long)ptr;
+
+  if (((long)ptr) % 8)
+    ptr = ptr + (8 - (((long)(ptr)) % 8));
+  res = ptr;
+  ptr += amt;
+  return (long)res;
+}
+
+#ifdef TARGET_CPU_SPARC64
+long
+_sbrk_r (void *foo, unsigned long amt)
+{
+  return sbrk(amt);
+}
+
+long
+_fstat_r (void *foo, void *bar, void *baz)
+{
+  return -1;
+}
+
+long
+_brk_r (void *foo)
+{
+  return sbrk(0);
+}
+
+int
+_open_r (char *filename, int mode)
+{
+  return open (filename, mode);
+}
+
+int
+_close_r (int fd)
+{
+  return close(fd);
+}
+#endif
+
+int
+close (int fd)
+{
+  return 0;
+}
+
+int
+fstat(int des,void *buf)
+{
+  return -1;
+}
+
+int
+lseek(int des,unsigned long offset, int whence)
+{
+  return -1;
+}
+
+int
+isatty(int fd)
+{
+  return (fd < 3);
+}
+
+int
+kill (int pid, int signal)
+{
+  asm ("or %g0, 37, %g1
+	ta 8
+	nop");
+}
+
+int
+getpid ()
+{
+  return -1;
+}
+
+int
+getitimer (int which, struct itimerval *value)
+{
+  asm ("or %g0, 157, %g1
+	ta 8
+	nop");
+}
+
+void
+__install_signal_handler (void *func)
+{
+  asm ("mov %o0, %o1
+	mov %g0, %o0
+	or %g0, 48, %g1
+	ta 8
+	nop");
+}
+
+int
+gettimeofday (struct timeval *tp, struct timezone *tzp)
+{
+  asm ("or %g0, 156, %g1
+	ta 8
+	nop");
+}
+
+int
+stime (long *seconds)
+{
+  asm ("or %g0, 25, %g1
+	ta 8
+	nop");
+}
+
+int
+add_mapping (long vma, long pma, long size)
+{
+  asm ("or %g0, 115, %g1
+	ta 8
+	nop");
+}
+
+int
+remove_mapping (long vma, long vma_end)
+{
+  asm ("or %g0, 117, %g1
+	ta 8
+	nop");
+}
+
+int
+open (char *filename, int mode)
+{
+  return -1;
+}
+
+void *
+__getProgramArgs (int *argv)
+{
+  int *res;
+
+  /* 184 is tsolsys under solaris; bad juju */
+  asm ("mov %1, %%o0
+	or %%g0, 184, %%g1
+	ta 8
+	nop
+	mov %%o0, %0" : "=r" (res) : "r" (argv): "g1");
+  return res;
+}
diff --git a/libgloss/sparc/cygmon-sparc64-ld.src b/libgloss/sparc/cygmon-sparc64-ld.src
new file mode 100644
index 0000000..efa0da1
--- /dev/null
+++ b/libgloss/sparc/cygmon-sparc64-ld.src
@@ -0,0 +1,159 @@
+/*
+ *uncomment this if you want the linker to output srecords.
+OUTPUT_FORMAT(srec)
+ *
+ */
+ENTRY(start)
+OUTPUT_ARCH(TARGET_OBJ_FORMAT)
+SEARCH_DIR(.)
+STARTUP(cygmon-crt0.o)
+GROUP(cygmon-salib.o -lc -lgcc -lc)
+
+/*
+ * The memory map looks like this:
+ * +--------------------+ <- low memory
+ * | .text              |
+ * |        _stext      |
+ * |        _etext      |
+ * |        ctor list   | the ctor and dtor lists are for
+ * |        dtor list   | C++ support
+ * |        _end_text   |
+ * +--------------------+
+ * | .data              | initialized data goes here
+ * |        _sdata      |
+ * |        _edata      |
+ * +--------------------+
+ * | .bss               |
+ * |        __bss_start | start of bss, cleared by crt0
+ * |        _end        | start of heap, used by sbrk()
+ * +--------------------+
+ * |    heap space      |
+ * |        _ENDHEAP    |
+ * |    stack space     | 
+ * |        __stack     | top of stack
+ * +--------------------+ <- high memory
+ */
+
+_STACK_SIZE = (16 * 1024);
+_RAM_SIZE = 1M;
+_RAM_START = 0x4000;
+_RAM_END = _RAM_START + _RAM_SIZE;
+
+/*
+ * Setup the standard memory map. The stack grows down towards low memory. 
+ */
+MEMORY
+{
+  ram     : ORIGIN = 0x4000, LENGTH = 1M
+}
+
+__stack = (_RAM_START + _RAM_SIZE - 4 * 16) - _STACK_SIZE;
+
+/*
+ * All the symbols that might be accessed from C code need to be
+ * listed twice, once with an additional underscore. aout format needs
+ * and extra underscore, whereas coff & elf doesn't. This is to work
+ * with both.
+ */
+/*
+ * Initalize some symbols to be zero so we can reference them in the
+ * crt0 without core dumping. These functions are all optional, but
+ * we do this so we can have our crt0 always use them if they exist. 
+ * This is so BSPs work better when using the crt0 installed with gcc.
+ * We have to initalize them twice, so we cover a.out (which prepends
+ * an underscore) and coff object file formats.
+ */
+PROVIDE (hardware_init_hook = 0);
+PROVIDE (_hardware_init_hook = 0);
+PROVIDE (software_init_hook = 0);
+PROVIDE (_software_init_hook = 0);
+SECTIONS
+{
+  .text : {
+    stext = .;
+    _stext = .;
+    CREATE_OBJECT_SYMBOLS
+    *(.text)
+     __CTOR_LIST__ = .;
+    LONG((__CTOR_END__ - __CTOR_LIST__) / 4 - 2)
+    *(.ctors)
+    LONG(0)
+    __CTOR_END__ = .;
+    __DTOR_LIST__ = .;
+    LONG((__DTOR_END__ - __DTOR_LIST__) / 4 - 2)
+    *(.dtors)
+     LONG(0)
+    __DTOR_END__ = .;
+    *(.init)
+    *(.lit)
+    *(.rodata)
+    *(.shdata)
+    *(.eh_frame)
+    *(.gnu.linkonce.t*)
+    *(.gnu.linkonce.r*)
+    *(.gcc_except_table)
+    *(.fini)
+    _etext  =  .;
+  }  > ram
+  .shbss SIZEOF(.text) + ADDR(.text) :	{
+    *(.shbss)
+  } 
+  .talias : { }  > ram
+  .data  : {
+    sdata  =  .;
+    _sdata  =  .;
+    *(.data)
+    *(.gnu.linkonce.d*)
+    edata  =  .;
+    _edata  =  .;
+  } > ram
+  .bss SIZEOF(.data) + ADDR(.data) : {
+   sbss = . ;
+   _sbss = . ;
+   __bss_start = ALIGN(0x8);
+   __bss_start = ALIGN(0x8);
+   *(.bss)
+   *(COMMON)
+     end = ALIGN(0x8);
+     _end = ALIGN(0x8);
+     __end = ALIGN(0x8);
+     ebss = .;
+     _ebss = .;
+  }
+  .mstack  : { }  > ram
+  .rstack  : { }  > ram
+  /* Stabs debugging sections.  */
+  .stab 0 : { *(.stab) }
+  .stabstr 0 : { *(.stabstr) }
+  .stab.excl 0 : { *(.stab.excl) }
+  .stab.exclstr 0 : { *(.stab.exclstr) }
+  .stab.index 0 : { *(.stab.index) }
+  .stab.indexstr 0 : { *(.stab.indexstr) }
+  .comment 0 : { *(.comment) }
+  /* DWARF debug sections.
+     Symbols in the DWARF debugging sections are relative to the beginning
+     of the section so we begin them at 0.  */
+  /* DWARF 1 */
+  .debug          0 : { *(.debug) }
+  .line           0 : { *(.line) }
+  /* GNU DWARF 1 extensions */
+  .debug_srcinfo  0 : { *(.debug_srcinfo) }
+  .debug_sfnames  0 : { *(.debug_sfnames) }
+  /* DWARF 1.1 and DWARF 2 */
+  .debug_aranges  0 : { *(.debug_aranges) }
+  .debug_pubnames 0 : { *(.debug_pubnames) }
+  /* DWARF 2 */
+  .debug_info     0 : { *(.debug_info) }
+  .debug_abbrev   0 : { *(.debug_abbrev) }
+  .debug_line     0 : { *(.debug_line) }
+  .debug_frame    0 : { *(.debug_frame) }
+  .debug_str      0 : { *(.debug_str) }
+  .debug_loc      0 : { *(.debug_loc) }
+  .debug_macinfo  0 : { *(.debug_macinfo) }
+  /* SGI/MIPS DWARF 2 extensions */
+  .debug_weaknames 0 : { *(.debug_weaknames) }
+  .debug_funcnames 0 : { *(.debug_funcnames) }
+  .debug_typenames 0 : { *(.debug_typenames) }
+  .debug_varnames  0 : { *(.debug_varnames) }
+  /* These must appear regardless of  .  */
+}
diff --git a/libgloss/sparc/cygmon.ld.src b/libgloss/sparc/cygmon.ld.src
new file mode 100644
index 0000000..bf06825
--- /dev/null
+++ b/libgloss/sparc/cygmon.ld.src
@@ -0,0 +1,195 @@
+/*
+ *uncomment this if you want the linker to output srecords.
+OUTPUT_FORMAT(srec)
+ *
+ */
+ENTRY(start)
+OUTPUT_ARCH(TARGET_OBJ_FORMAT)
+SEARCH_DIR(.)
+STARTUP(cygmon-crt0.o)
+GROUP(cygmon-salib.o -lc -lgcc -lc)
+
+/*
+ * The memory map looks like this:
+ * +--------------------+ <- low memory
+ * | .text              |
+ * |        _stext      |
+ * |        _etext      |
+ * |        ctor list   | the ctor and dtor lists are for
+ * |        dtor list   | C++ support
+ * |        _end_text   |
+ * +--------------------+
+ * | .data              | initialized data goes here
+ * |        _sdata      |
+ * |        _edata      |
+ * +--------------------+
+ * | .bss               |
+ * |        __bss_start | start of bss, cleared by crt0
+ * |        _end        | start of heap, used by sbrk()
+ * +--------------------+
+ * |    heap space      |
+ * |        _ENDHEAP    |
+ * |    stack space     | 
+ * |        __stack     | top of stack
+ * +--------------------+ <- high memory
+ */
+
+_STACK_SIZE = (16 * 1024);
+_RAM_SIZE = 1M;
+_RAM_START = TARGET_RAM_START;
+_RAM_END = _RAM_START + _RAM_SIZE;
+
+/*
+ * Setup the standard memory map. The stack grows down towards low memory. 
+ */
+MEMORY
+{
+  ram     : ORIGIN = TARGET_RAM_START, LENGTH = 1M
+}
+
+__stack = (_RAM_START + _RAM_SIZE - 4 * 16) - _STACK_SIZE;
+
+/*
+ * All the symbols that might be accessed from C code need to be
+ * listed twice, once with an additional underscore. aout format needs
+ * and extra underscore, whereas coff & elf doesn't. This is to work
+ * with both.
+ */
+/*
+ * Initalize some symbols to be zero so we can reference them in the
+ * crt0 without core dumping. These functions are all optional, but
+ * we do this so we can have our crt0 always use them if they exist. 
+ * This is so BSPs work better when using the crt0 installed with gcc.
+ * We have to initalize them twice, so we cover a.out (which prepends
+ * an underscore) and coff object file formats.
+ */
+PROVIDE (hardware_init_hook = 0);
+PROVIDE (_hardware_init_hook = 0);
+PROVIDE (software_init_hook = 0);
+PROVIDE (_software_init_hook = 0);
+SECTIONS
+{
+  .text : {
+    stext = .;
+    _stext = .;
+    CREATE_OBJECT_SYMBOLS
+    *(.text)
+     __CTOR_LIST__ = .;
+    LONG((__CTOR_END__ - __CTOR_LIST__) / 4 - 2)
+    KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors))
+    KEEP (*(SORT(.ctors.*)))
+    KEEP (*crtend.o(.ctors))
+    LONG(0)
+    __CTOR_END__ = .;
+    __DTOR_LIST__ = .;
+    LONG((__DTOR_END__ - __DTOR_LIST__) / 4 - 2)
+    KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))
+    KEEP (*(SORT(.dtors.*)))
+    KEEP (*crtend.o(.dtors))
+     LONG(0)
+    __DTOR_END__ = .;
+    *(.init)
+    *(.lit)
+    *(.rodata)
+    *(.shdata)
+    *(.eh_frame)
+    *(.gnu.linkonce.t*)
+    *(.gnu.linkonce.r*)
+    *(.gcc_except_table)
+    *(.fini)
+    _etext  =  .;
+  }  > ram
+  .shbss SIZEOF(.text) + ADDR(.text) :	{
+    *(.shbss)
+  } 
+  .talias : { }  > ram
+  .data  : {
+    sdata  =  .;
+    _sdata  =  .;
+    *(.data)
+    *(.gnu.linkonce.d*)
+    edata  =  .;
+    _edata  =  .;
+  } > ram
+  .bss SIZEOF(.data) + ADDR(.data) : {
+   sbss = . ;
+   _sbss = . ;
+   __bss_start = ALIGN(0x8);
+   __bss_start = ALIGN(0x8);
+   *(.bss)
+   *(COMMON)
+     end = ALIGN(0x8);
+     _end = ALIGN(0x8);
+     __end = ALIGN(0x8);
+     ebss = .;
+     _ebss = .;
+  }
+  .mstack  : { }  > ram
+  .rstack  : { }  > ram
+  .stab  0 (NOLOAD) : {
+    [ .stab ]
+  }
+  .stabstr  0 (NOLOAD) :
+  {
+    [ .stabstr ]
+  }
+/* DWARF debug sections.
+   Symbols in the DWARF debugging sections are relative to the beginning
+   of the section so we begin them at 0.  */
+/* DWARF 1 */
+  .debug    0 (NOLOAD) :
+  {
+    [ .debug ]
+  }
+  .line	    0 (NOLOAD) :
+  {
+    [ .line ]
+  }
+/* GNU DWARF 1 extensions */
+  .debug_srcinfo 0 (NOLOAD) :
+  {
+    [ .debug_srcinfo ]
+  }
+  .debug_sfnames  0 (NOLOAD) :
+  {
+    [ .debug_sfnames ]
+  }
+/* DWARF 1.1 and DWARF 2 */
+  .debug_aranges  0 (NOLOAD) :
+  {
+    [ .debug_aranges ]
+  }
+  .debug_pubnames 0 (NOLOAD) :
+  {
+    [ .debug_pubnames ]
+  }
+/* DWARF 2 */
+  .debug_info     0 (NOLOAD) :
+  {
+    [ .debug_info ]
+  }
+  .debug_abbrev   0 (NOLOAD) :
+  {
+    [ .debug_abbrev ]
+  }
+  .debug_line     0 (NOLOAD) :
+  {
+    [ .debug_line ]
+  }
+  .debug_frame    0 (NOLOAD) :
+  {
+    [ .debug_frame ]
+  }
+  .debug_str      0 (NOLOAD) :
+  {
+    [ .debug_str ]
+  }
+  .debug_loc      0 (NOLOAD) :
+  {
+    [ .debug_loc ]
+  }
+  .debug_macinfo  0 (NOLOAD) :
+  {
+    [ .debug_macinfo ]
+  }
+}
diff --git a/libgloss/sparc/dtor.C b/libgloss/sparc/dtor.C
new file mode 100644
index 0000000..abde4f1
--- /dev/null
+++ b/libgloss/sparc/dtor.C
@@ -0,0 +1,25 @@
+#include <stdio.h>
+
+extern "C" void print (char *, ...);
+
+class foo
+{
+public:
+  foo () { print ("ctor\n"); }
+  ~foo () { print ("dtor\n"); }
+};
+
+foo x;
+
+main ()
+{
+  outbyte ('&');
+  outbyte ('@');
+  outbyte ('$');
+  outbyte ('%');
+  print ("FooBar\r\n");
+
+  /* whew, we made it */
+  print ("\r\nDone...\r\n");
+/*  fflush(stdout); */
+}
diff --git a/libgloss/sparc/elfsim.ld b/libgloss/sparc/elfsim.ld
new file mode 100644
index 0000000..d1831be
--- /dev/null
+++ b/libgloss/sparc/elfsim.ld
@@ -0,0 +1,202 @@
+/* Linker script for running ELF programs in the Sparc simulator */
+
+/* OUTPUT_FORMAT("elf32-sparc", "elf32-sparc", "elf32-sparcle") */
+/* OUTPUT_FORMAT("elf32-sparc") */
+OUTPUT_ARCH(sparc)
+STARTUP(traps.o)
+INPUT(erc32-crt0.o)
+ENTRY(_trap_table)
+GROUP(-lc -lerc32 -lgcc)  /*  -lerc32 used to be -lsim */
+
+SEARCH_DIR(.)
+/* Do we need any of these for elf?
+   __DYNAMIC = 0;    */
+
+/*
+ * The memory map looks like this:
+ * +--------------------+ <- low memory
+ * | .text              |
+ * |        _stext       |
+ * |        _etext      |
+ * |        ctor list   | the ctor and dtor lists are for
+ * |        dtor list   | C++ support
+ * |        _end_text   |
+ * +--------------------+
+ * | .data              | initialized data goes here
+ * |        _sdata      |
+ * |        _edata      |
+ * +--------------------+
+ * | .bss               |
+ * |        __bss_start | start of bss, cleared by crt0
+ * |        _end        | start of heap, used by sbrk()
+ * +--------------------+
+ * |    heap space      |
+ * |        _ENDHEAP    |
+ * |    stack space     | 
+ * |        __stack     | top of stack
+ * +--------------------+ <- high memory
+ */
+
+/*
+ * User modifiable values:
+ *
+ * _CLOCK_SPEED               in Mhz (used to program the counter/timers)
+ *
+ * _PROM_SIZE                 size of PROM (permissible values are 4K, 8K, 16K
+ *                               32K, 64K, 128K, 256K, and 512K)
+ * _RAM_SIZE                  size of RAM (permissible values are 256K, 512K,
+ *                               1MB, 2Mb, 4Mb, 8Mb, 16Mb, and 32Mb)
+ *
+ * These symbols are only used in assembler code, so they only need to
+ * be listed once. They should always be refered to without SYM().
+ */
+
+_CLOCK_SPEED = 10;
+
+_PROM_SIZE = 4M;
+_RAM_SIZE = 256K;
+
+_RAM_START = 0x02000000;
+_RAM_END = _RAM_START + _RAM_SIZE;
+_STACK_SIZE = (16 * 1024);
+_PROM_START = 0x00000000;
+_PROM_END = _PROM_START + _PROM_SIZE;
+
+
+/*
+ *  Base address of the on-CPU peripherals
+ */
+
+_ERC32_MEC = 0x01f80000;
+
+/*
+ * Setup the memory map for the SIS simulator.
+ * stack grows up towards low memory. 
+ */
+
+MEMORY
+{
+  rom       : ORIGIN = 0x00000000, LENGTH = 4M
+  ram (rwx) : ORIGIN = 0x02000000, LENGTH = 2M
+}
+
+__stack = _RAM_START + _RAM_SIZE - 4 * 16;
+__trap_stack = (_RAM_START + _RAM_SIZE - 4 * 16) - _STACK_SIZE;
+
+/*
+ * All the symbols that might be accessed from C code need to be
+ * listed twice, once with an additional underscore. aout format needs
+ * and extra underscore, whereas coff & elf doesn't. This is to work
+ * with both.
+ */
+SECTIONS
+{
+  .text      :
+  {
+    _stext = .;
+    PROVIDE (stext = .);
+    __EH_FRAME_BEGIN__ = .;
+    *(.text)
+    _etext = .;
+    PROVIDE (etext = .);
+
+    /* For a.out.  */
+    CONSTRUCTORS
+
+    /* For ELF.  */
+    __CTOR_LIST__ = .;
+    LONG(-1)
+    KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors))
+    KEEP (*(SORT(.ctors.*)))
+    KEEP (*crtend.o(.ctors))
+    LONG(0)                                                    
+    __CTOR_END__ = .;
+    __DTOR_LIST__ = .;
+    LONG(-1)
+    KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))
+    KEEP (*(SORT(.dtors.*)))
+    KEEP (*crtend.o(.dtors))
+    LONG(0)              
+    __DTOR_END__ = .;
+
+    *(.init)
+    *(.lit)
+    *(.rodata)
+    *(.shdata)
+    *(.eh_frame)
+    *(.gnu.linkonce.t*)
+    *(.gnu.linkonce.r*)
+    *(.gcc_except_table)
+    *(.fini)
+
+    _endtext = .;
+    PROVIDE(endtext = .);
+  } > ram
+
+  .shbss SIZEOF(.text) + ADDR(.text) :
+  {
+    *(.shbss)   
+  }
+
+  .talias : { }  > ram
+
+  .data    :
+  {
+    _sdata  =  .;
+    PROVIDE (sdata  =  .);
+    *(.data)
+    *(.data.*)
+    *(.gnu.linkonce.d*)
+    _edata  =  .;
+    PROVIDE (edata  =  .);
+  } > ram
+
+  .bss SIZEOF(.data) + ADDR(.data) :
+  {
+    _sbss = . ;
+    PROVIDE (sbss = . );
+    __bss_start = ALIGN(0x8);
+    *(.bss)
+    *(COMMON)
+    _ebss = .;
+    PROVIDE (ebss = .);
+    _end = ALIGN(0x8);    
+    __end = ALIGN(0x8);
+    PROVIDE (end = ALIGN(0x8));
+  }
+
+  /* Stabs debugging sections.  */
+  .stab 0 : { *(.stab) }
+  .stabstr 0 : { *(.stabstr) }
+  .stab.excl 0 : { *(.stab.excl) }
+  .stab.exclstr 0 : { *(.stab.exclstr) }
+  .stab.index 0 : { *(.stab.index) }
+  .stab.indexstr 0 : { *(.stab.indexstr) }
+  .comment 0 : { *(.comment) }
+  /* DWARF debug sections.
+     Symbols in the DWARF debugging sections are relative to the beginning
+     of the section so we begin them at 0.  */
+  /* DWARF 1 */
+  .debug          0 : { *(.debug) }
+  .line           0 : { *(.line) }
+  /* GNU DWARF 1 extensions */
+  .debug_srcinfo  0 : { *(.debug_srcinfo) }
+  .debug_sfnames  0 : { *(.debug_sfnames) }
+  /* DWARF 1.1 and DWARF 2 */
+  .debug_aranges  0 : { *(.debug_aranges) }
+  .debug_pubnames 0 : { *(.debug_pubnames) }
+  /* DWARF 2 */
+  .debug_info     0 : { *(.debug_info) }
+  .debug_abbrev   0 : { *(.debug_abbrev) }
+  .debug_line     0 : { *(.debug_line) }
+  .debug_frame    0 : { *(.debug_frame) }
+  .debug_str      0 : { *(.debug_str) }
+  .debug_loc      0 : { *(.debug_loc) }
+  .debug_macinfo  0 : { *(.debug_macinfo) }
+  /* SGI/MIPS DWARF 2 extensions */
+  .debug_weaknames 0 : { *(.debug_weaknames) }
+  .debug_funcnames 0 : { *(.debug_funcnames) }
+  .debug_typenames 0 : { *(.debug_typenames) }
+  .debug_varnames  0 : { *(.debug_varnames) }
+  /* These must appear regardless of  .  */
+}
diff --git a/libgloss/sparc/erc32-crt0.S b/libgloss/sparc/erc32-crt0.S
new file mode 100644
index 0000000..8f8b1ea
--- /dev/null
+++ b/libgloss/sparc/erc32-crt0.S
@@ -0,0 +1,75 @@
+/*
+ * This is based on the file srt0.s provided with the binary
+ * distribution of the SPARC Instruction Simulator (SIS) found
+ * at ftp://ftp.estec.esa.nl/pub/ws/wsd/erc32.
+ */
+
+#include "asm.h"
+
+	.data
+        .align  8
+SYM(environ):
+        .long   0
+
+	.text
+
+	.globl SYM(start)
+SYM(start):
+	sethi	%hi(__stack), %g1
+        or      %g1,%lo(__stack),%g1
+	mov	%g1, %sp		! set the stack pointer
+        mov     %sp, %fp
+
+        /* clear the bss */
+        sethi %hi(__bss_start),%g2
+        or    %g2,%lo(__bss_start),%g2	! start of bss
+        sethi %hi(_end),%g3
+        or    %g3,%lo(_end),%g3		! end of bss
+        mov   %g0,%g1			! so std has two zeros
+zerobss:
+        std    %g0,[%g2]
+        add    %g2,8,%g2
+        cmp    %g2,%g3
+        bleu,a zerobss
+        nop
+
+        /* move data segment to proper location */
+ 
+#if 0
+relocd:
+        set (_endtext),%g2		! g2 = start of data in aout file
+        set (_environ),%g4		! g4 = start of where data should go
+        set (_edata),%g3		! g3 = end of where data should go
+        subcc   %g3, %g4, %g5		! g5 = length of data
+
+        subcc   %g4, %g2, %g0		! need to relocate data ?
+        ble     initok
+        ld      [%g4], %g6
+        subcc   %g6, 1, %g0
+        be      initok
+mvdata:
+        subcc   %g5, 8, %g5
+        ldd     [%g2 + %g5], %g6
+        bg      mvdata
+        std     %g6, [%g4 + %g5]
+
+initok:
+#endif
+
+	call	SYM(__fix_ctors)
+	nop
+        call    SYM(main)
+        nop
+
+	/* call exit from the C library so atexit gets called, and the
+	 * C++ destructors get run. This calls our exit routine below	 * when it's done.
+	 */
+	call	SYM(exit)
+	nop
+
+	.globl	SYM(_exit)
+SYM(_exit):
+	set	0xdeadd00d, %o1		! Magic number for simulator.
+        ta      0                       ! Halt if _main returns ...
+        nop
+ 
diff --git a/libgloss/sparc/erc32-io.c b/libgloss/sparc/erc32-io.c
new file mode 100644
index 0000000..082d9f9
--- /dev/null
+++ b/libgloss/sparc/erc32-io.c
@@ -0,0 +1,47 @@
+#define USE_PORT_A
+
+#define RXADATA (int *) 0x01F800E0
+#define RXBDATA (int *) 0x01F800E4
+#define RXSTAT (int *) 0x01F800E8
+
+void
+outbyte (int c)
+{
+  volatile int *rxstat;
+  volatile int *rxadata;
+  int rxmask;
+
+  rxstat = RXSTAT;
+#ifdef USE_PORT_A
+  rxadata = RXADATA;
+  rxmask = 6;
+#else
+  rxadata = RXBDATA;
+  rxmask = 0x60000;
+#endif
+
+  while ((*rxstat & rxmask) == 0);
+
+  *rxadata = c;
+}
+
+int
+inbyte (void)
+{
+  volatile int *rxstat;
+  volatile int *rxadata;
+  int rxmask;
+
+  rxstat = RXSTAT;
+#ifdef USE_PORT_A
+  rxadata = RXADATA;
+  rxmask = 1;
+#else
+  rxadata = RXBDATA;
+  rxmask = 0x10000;
+#endif
+
+  while ((*rxstat & rxmask) == 0);
+
+  return *rxadata;
+}
diff --git a/libgloss/sparc/erc32-stub.c b/libgloss/sparc/erc32-stub.c
new file mode 100644
index 0000000..71a65b2
--- /dev/null
+++ b/libgloss/sparc/erc32-stub.c
@@ -0,0 +1,363 @@
+/*
+ * Copyright (c) 1996 Cygnus Support
+ *
+ * The authors hereby grant permission to use, copy, modify, distribute,
+ * and license this software and its documentation for any purpose, provided
+ * that existing copyright notices are retained in all copies and that this
+ * notice is included verbatim in any distributions. No written agreement,
+ * license, or royalty fee is required for any of the authorized uses.
+ * Modifications to this software may be copyrighted by their authors
+ * and need not follow the licensing terms described here, provided that
+ * the new terms are clearly indicated on the first page of each file where
+ * they apply.
+ */
+
+#include <string.h>
+#include <signal.h>
+#include "debug.h"
+#include "asm.h"
+#include "slite.h"
+
+extern unsigned long rdtbr();
+extern struct trap_entry fltr_proto;
+extern void trap_low();
+exception_t default_trap_hook = trap_low;
+void target_reset();
+void flush_i_cache();
+char *target_read_registers(unsigned long *);
+char *target_write_registers(unsigned long *);
+char *target_dump_state(unsigned long *);
+
+#define NUMREGS 72
+
+/* Number of bytes of registers.  */
+#define NUMREGBYTES (NUMREGS * 4)
+
+enum regnames {G0, G1, G2, G3, G4, G5, G6, G7,
+		 O0, O1, O2, O3, O4, O5, SP, O7,
+		 L0, L1, L2, L3, L4, L5, L6, L7,
+		 I0, I1, I2, I3, I4, I5, FP, I7,
+
+		 F0, F1, F2, F3, F4, F5, F6, F7,
+		 F8, F9, F10, F11, F12, F13, F14, F15,
+		 F16, F17, F18, F19, F20, F21, F22, F23,
+		 F24, F25, F26, F27, F28, F29, F30, F31,
+		 Y, PSR, WIM, TBR, PC, NPC, FPSR, CPSR };
+
+/*
+ * Each entry in the trap vector occupies four words, typically a jump
+ * to the processing routine.
+ */
+struct trap_entry {
+  unsigned sethi_filler:10;
+  unsigned sethi_imm22:22;
+  unsigned jmpl_filler:19;
+  unsigned jmpl_simm13:13;
+  unsigned long filler[2];
+};
+
+/*
+ * This table contains the mapping between SPARC hardware trap types, and
+ * signals, which are primarily what GDB understands.  It also indicates
+ * which hardware traps we need to commandeer when initializing the stub.
+ */
+struct trap_info hard_trap_info[] = {
+  {1, SIGSEGV},			/* instruction access error */
+  {2, SIGILL},			/* privileged instruction */
+  {3, SIGILL},			/* illegal instruction */
+  {4, SIGEMT},			/* fp disabled */
+  {36, SIGEMT},			/* cp disabled */
+  {7, SIGBUS},			/* mem address not aligned */
+  {9, SIGSEGV},			/* data access exception */
+  {10, SIGEMT},			/* tag overflow */
+  {128+1, SIGTRAP},		/* ta 1 - normal breakpoint instruction */
+  {0, 0}			/* Must be last */
+};
+
+extern struct trap_entry fltr_proto;
+void
+exception_handler (int tt, unsigned long routine)
+{
+  struct trap_entry *tb;        /* Trap vector base address */
+
+  DEBUG (1, "Entering exception_handler()");
+  if (tt != 256) {
+    tb = (struct trap_entry *) (rdtbr() & ~0xfff);
+  } else {
+    tt = 255;
+    tb = (struct trap_entry *) 0;
+  }
+
+  tb[tt] = fltr_proto;
+
+  tb[tt].sethi_imm22 = routine >> 10;
+  tb[tt].jmpl_simm13 = routine & 0x3ff;
+
+  DEBUG (1, "Leaving exception_handler()");
+}
+
+/*
+ * This is so we can trap a memory fault when reading or writing
+ * directly to memory.
+ */
+void
+set_mem_fault_trap(enable)
+     int enable;
+{
+  extern void fltr_set_mem_err();
+
+  DEBUG (1, "Entering set_mem_fault_trap()");
+
+  mem_err = 0;
+
+  if (enable)
+    exception_handler(9, (unsigned long)fltr_set_mem_err);
+  else
+    exception_handler(9, (unsigned long)trap_low);
+
+  DEBUG (1, "Leaving set_mem_fault_trap()");
+}
+
+/*
+ * This function does all command procesing for interfacing to gdb.  It
+ * returns 1 if you should skip the instruction at the trap address, 0
+ * otherwise.
+ */
+extern void breakinst();
+
+void
+handle_exception (registers)
+     unsigned long *registers;
+{
+  int sigval;
+
+  /* First, we must force all of the windows to be spilled out */
+
+  DEBUG (1, "Entering handle_exception()");
+
+/*  asm("mov %g0, %wim ; nop; nop; nop"); */
+  asm("	save %sp, -64, %sp
+	save %sp, -64, %sp
+	save %sp, -64, %sp
+	save %sp, -64, %sp
+	save %sp, -64, %sp
+	save %sp, -64, %sp
+	save %sp, -64, %sp
+	save %sp, -64, %sp
+	restore
+	restore
+	restore
+	restore
+	restore
+	restore
+	restore
+	restore
+");
+
+  if (registers[PC] == (unsigned long)breakinst) {
+    registers[PC] = registers[NPC];
+    registers[NPC] += 4;
+  }
+
+  /* get the last know signal number from the trap register */
+  sigval = computeSignal((registers[TBR] >> 4) & 0xff);
+
+  /* call the main command processing loop for gdb */
+  gdb_event_loop (sigval, registers);
+}
+
+/*
+ * This function will generate a breakpoint exception.  It is used at the
+ * beginning of a program to sync up with a debugger and can be used
+ * otherwise as a quick means to stop program execution and "break" into
+ * the debugger.
+ */
+void
+breakpoint()
+{
+  DEBUG (1, "Entering breakpoint()");
+
+  if (!initialized)
+    return;
+
+  asm("	.globl " STRINGSYM(breakinst) "
+	" STRINGSYM(breakinst) ": ta 128+1
+	nop
+	nop
+      ");
+}
+
+/*
+ * This is just a test vector for debugging excpetions.
+ */
+void
+bad_trap(tt)
+int tt;
+{
+  print ("Got a bad trap #");
+  outbyte (tt);
+  outbyte ('\n');
+  asm("ta 0
+	nop
+	nop
+      ");
+}
+
+/*
+ * This is just a test vector for debugging excpetions.
+ */
+void
+soft_trap(tt)
+int tt;
+{
+  print ("Got a soft trap #");
+  outbyte (tt);
+  outbyte ('\n');
+  asm("ta 0
+	nop
+	nop
+      ");
+}
+
+/*
+ * Flush the instruction cache.  We need to do this for the debugger stub so
+ * that breakpoints, et. al. become visible to the instruction stream after
+ * storing them in memory.
+ * 
+ * For the sparclite, we need to do something here, but for a standard
+ * sparc (which SIS simulates), we don't.
+ */
+
+void
+flush_i_cache ()
+{
+}
+
+/*
+ * This will reset the processor, so we never return from here.
+ */
+void
+target_reset()
+{
+  asm ("call 0
+	nop ");
+}
+
+/*
+ * g - read registers.
+ *	no params.
+ *	returns a vector of words, size is NUM_REGS.
+ */
+char *
+target_read_registers(unsigned long *registers)
+{
+  char *ptr;
+  unsigned long *sp;
+ 
+  DEBUG (1, "In target_read_registers()");
+
+  ptr = packet_out_buf;
+  ptr = mem2hex((char *)registers, ptr, 16 * 4, 0); /* G & O regs */
+  ptr = mem2hex((unsigned char *)(sp + 0), ptr, 16 * 4, 0); /* L & I regs */
+  memset(ptr, '0', 32 * 8); /* Floating point */
+  mem2hex((char *)&registers[Y],
+	  ptr + 32 * 4 * 2,
+	  8 * 4,
+	  0);		/* Y, PSR, WIM, TBR, PC, NPC, FPSR, CPSR */
+  return (ptr);
+}
+
+/*
+ * G - write registers.
+ *	param is a vector of words, size is NUM_REGS.
+ *	returns an OK or an error number.
+ */
+char *
+target_write_registers(unsigned long *registers)
+{	
+  unsigned char *ptr;
+  unsigned long *sp;
+  unsigned long *newsp, psr;
+
+  DEBUG (1, "In target_write_registers()");
+
+  psr = registers[PSR];
+  
+  ptr = &packet_in_buf[1];
+
+  hex2mem(ptr, (char *)registers, 16 * 4, 0); /* G & O regs */
+  hex2mem(ptr + 16 * 4 * 2, (unsigned char *)(sp + 0), 16 * 4, 0); /* L & I regs */
+  hex2mem(ptr + 64 * 4 * 2, (char *)&registers[Y],
+	  8 * 4, 0);	/* Y, PSR, WIM, TBR, PC, NPC, FPSR, CPSR */
+  
+  /*
+   * see if the stack pointer has moved.  If so, then copy the saved
+   * locals and ins to the new location.  This keeps the window
+   * overflow and underflow routines happy.
+   */
+  
+  newsp = (unsigned long *)registers[SP];
+  if (sp != newsp)
+    sp = memcpy(newsp, sp, 16 * 4);
+  
+  /* Don't allow CWP to be modified. */
+  
+  if (psr != registers[PSR])
+    registers[PSR] = (psr & 0x1f) | (registers[PSR] & ~0x1f);
+  
+  return (ptr);
+}
+
+char *
+target_dump_state(unsigned long *registers)
+{
+  int tt;			/* Trap type */
+  int sigval;
+  char *ptr;
+  unsigned long *sp;
+
+  DEBUG (1, "In target_dump_state()");
+
+  sp = (unsigned long *)registers[SP];
+
+  tt = (registers[TBR] >> 4) & 0xff;
+
+  /* reply to host that an exception has occurred */
+  sigval = computeSignal(tt);
+  ptr = packet_out_buf;
+
+  *ptr++ = 'T';
+  *ptr++ = hexchars[sigval >> 4];
+  *ptr++ = hexchars[sigval & 0xf];
+
+  *ptr++ = hexchars[PC >> 4];
+  *ptr++ = hexchars[PC & 0xf];
+  *ptr++ = ':';
+  ptr = mem2hex((unsigned char *)&registers[PC], ptr, 4, 0);
+  *ptr++ = ';';
+
+  *ptr++ = hexchars[FP >> 4];
+  *ptr++ = hexchars[FP & 0xf];
+  *ptr++ = ':';
+  ptr = mem2hex((unsigned char *)(sp + 8 + 6), ptr, 4, 0); /* FP */
+  *ptr++ = ';';
+
+  *ptr++ = hexchars[SP >> 4];
+  *ptr++ = hexchars[SP & 0xf];
+  *ptr++ = ':';
+  ptr = mem2hex((unsigned char *)&sp, ptr, 4, 0);
+  *ptr++ = ';';
+
+  *ptr++ = hexchars[NPC >> 4];
+
+  return (packet_out_buf);
+}
+
+void
+write_pc(unsigned long *registers, unsigned long addr)
+{
+  DEBUG (1, "In write_pc");
+
+  registers[PC] = addr;
+  registers[NPC] = addr + 4;
+}
diff --git a/libgloss/sparc/erc32.ld b/libgloss/sparc/erc32.ld
new file mode 100644
index 0000000..179dcc0
--- /dev/null
+++ b/libgloss/sparc/erc32.ld
@@ -0,0 +1,146 @@
+/*
+ *uncomment this if you want the linker to output srecords.
+OUTPUT_FORMAT(srec)
+ *
+ */
+STARTUP(traps.o)
+INPUT(sim-crt0.o)
+OUTPUT_ARCH(sparc)
+SEARCH_DIR(.)
+__DYNAMIC  =  0;
+GROUP(-lc -lsim -lgcc)
+
+/*
+ * The memory map looks like this:
+ * +--------------------+ <- low memory
+ * | .text              |
+ * |        _stext       |
+ * |        _etext      |
+ * |        ctor list   | the ctor and dtor lists are for
+ * |        dtor list   | C++ support
+ * |        _end_text   |
+ * +--------------------+
+ * | .data              | initialized data goes here
+ * |        _sdata      |
+ * |        _edata      |
+ * +--------------------+
+ * | .bss               |
+ * |        __bss_start | start of bss, cleared by crt0
+ * |        _end        | start of heap, used by sbrk()
+ * +--------------------+
+ * |    heap space      |
+ * |        _ENDHEAP    |
+ * |    stack space     | 
+ * |        __stack     | top of stack
+ * +--------------------+ <- high memory
+ */
+
+/*
+ * User modifiable values:
+ *
+ * _CLOCK_SPEED               in Mhz (used to program the counter/timers)
+ *
+ * _PROM_SIZE                 size of PROM (permissible values are 4K, 8K, 16K
+ *                               32K, 64K, 128K, 256K, and 512K)
+ * _RAM_SIZE                  size of RAM (permissible values are 256K, 512K,
+ *                               1MB, 2Mb, 4Mb, 8Mb, 16Mb, and 32Mb)
+ *
+ * These symbols are only used in assembler code, so they only need to
+ * be listed once. They should always be refered to without SYM().
+ */
+
+_CLOCK_SPEED = 10;
+
+_PROM_SIZE = 4M;
+_RAM_SIZE = 2M;
+
+_RAM_START = 0x02020000;
+_RAM_END = _RAM_START + _RAM_SIZE;
+_STACK_SIZE = (16 * 1024);
+_PROM_START = 0x00000000;
+_PROM_END = _PROM_START + _PROM_SIZE;
+
+
+/*
+ *  Base address of the on-CPU peripherals
+ */
+
+_ERC32_MEC = 0x01f80000;
+
+/*
+ * Setup the memory map for the SIS simulator.
+ * stack grows up towards low memory. 
+ */
+/*
+MEMORY
+{
+  rom       : ORIGIN = 0x00000000, LENGTH = 4M
+  ram (rwx) : ORIGIN = 0x02000000, LENGTH = 2M
+}
+*/
+
+__stack = _RAM_START + _RAM_SIZE - 4 * 16;
+__trap_stack = (_RAM_START + _RAM_SIZE - 4 * 16) - _STACK_SIZE;
+
+/*
+ * All the symbols that might be accessed from C code need to be
+ * listed twice, once with an additional underscore. aout format needs
+ * and extra underscore, whereas coff & elf doesn't. This is to work
+ * with both.
+ */
+SECTIONS
+{
+  .text 0x02000000 :  {
+    stext = .;
+    _stext = .;
+    *(.text)
+     _etext  =  .;
+    __CTOR_LIST__ = .;
+    LONG((__CTOR_END__ - __CTOR_LIST__) / 4 - 2)
+    *(.ctors)
+    LONG(0)
+    __CTOR_END__ = .;
+    __DTOR_LIST__ = .;
+    LONG((__DTOR_END__ - __DTOR_LIST__) / 4 - 2)
+    *(.dtors)
+    LONG(0)
+    __DTOR_END__ = .;
+    *(.lit)
+    *(.shdata)
+    _endtext = .;
+  }  > ram
+  .shbss SIZEOF(.text) + ADDR(.text) :	{
+    *(.shbss)
+  } 
+  .talias :	 { }  > ram
+  .data : {
+    sdata  =  .;
+    _sdata  =  .;
+    *(.data)
+    edata  =  .;
+    _edata  =  .;
+  } > ram
+  .bss SIZEOF(.data) + ADDR(.data) :
+  {
+   sbss = . ;
+   _sbss = . ;
+   __bss_start = ALIGN(0x8);
+   *(.bss)
+   *(COMMON)
+   end = ALIGN(0x8);
+   _end = ALIGN(0x8);
+   __end = ALIGN(0x8);
+   ebss = .;
+   _ebss = .;
+  }
+  .mstack  : { }  > ram
+  .rstack  : { }  > ram
+  .stab  0 (NOLOAD) : 
+  {
+    [ .stab ]
+  }
+  .stabstr  0 (NOLOAD) :
+  {
+    [ .stabstr ]
+  }
+}
diff --git a/libgloss/sparc/ex930.ld b/libgloss/sparc/ex930.ld
new file mode 100644
index 0000000..b501b2e
--- /dev/null
+++ b/libgloss/sparc/ex930.ld
@@ -0,0 +1,160 @@
+/*
+ *uncomment this if you want the linker to output srecords.
+OUTPUT_FORMAT(srec)
+ *
+ */
+ENTRY(_start)
+STARTUP(crt0.o)
+OUTPUT_ARCH(sparc)
+SEARCH_DIR(.)
+__DYNAMIC  =  0;
+GROUP (-lc -lslite930 -lgcc)
+
+/*
+ * The memory map looks like this:
+ * +--------------------+ <- low memory
+ * | .text              |
+ * |        _stext       |
+ * |        _etext      |
+ * |        ctor list   | the ctor and dtor lists are for
+ * |        dtor list   | C++ support
+ * |        _end_text   |
+ * +--------------------+
+ * | .data              | initialized data goes here
+ * |        _sdata      |
+ * |        _edata      |
+ * +--------------------+
+ * | .bss               |
+ * |        __bss_start | start of bss, cleared by crt0
+ * |        _end        | start of heap, used by sbrk()
+ * +--------------------+
+ * |    heap space      |
+ * |        _ENDHEAP    |
+ * |    stack space     | 
+ * |        __stack     | top of stack
+ * +--------------------+ <- high memory
+ */
+
+_STACK_SIZE = (16 * 1024);
+_RAM_SIZE = 2M;
+_RAM_START = 0x40000000;
+_RAM_END = _RAM_START + _RAM_SIZE;
+
+/*
+ * Base address of the on-CPU peripherals. This is for compatability
+ * with the simulator.
+ */
+
+_ERC32_MEC = 0x0;
+
+/*
+ * Setup the memory map of the MB86931-EB Board (ex931)
+ * stack grows down towards low memory. 
+ */
+MEMORY
+{
+  ram (rwx) : ORIGIN = 0x40000000, LENGTH = 2M
+}
+
+__stack = _RAM_START + _RAM_SIZE - 4 * 16;
+__trap_stack = (_RAM_START + _RAM_SIZE - 4 * 16) - _STACK_SIZE;
+
+/*
+ * All the symbols that might be accessed from C code need to be
+ * listed twice, once with an additional underscore. aout format needs
+ * and extra underscore, whereas coff & elf doesn't. This is to work
+ * with both.
+ */
+/*
+ * Initalize some symbols to be zero so we can reference them in the
+ * crt0 without core dumping. These functions are all optional, but
+ * we do this so we can have our crt0 always use them if they exist. 
+ * This is so BSPs work better when using the crt0 installed with gcc.
+ * We have to initalize them twice, so we cover a.out (which prepends
+ * an underscore) and coff object file formats.
+ */
+PROVIDE (hardware_init_hook = 0);
+PROVIDE (_hardware_init_hook = 0);
+PROVIDE (software_init_hook = 0);
+PROVIDE (_software_init_hook = 0);
+SECTIONS
+{
+  .text : {
+    stext = .;
+    _stext = .;
+    CREATE_OBJECT_SYMBOLS
+    *(.text)
+     __CTOR_LIST__ = .;
+    LONG((__CTOR_END__ - __CTOR_LIST__) / 4 - 2)
+    *(.ctors)
+    LONG(0)
+    __CTOR_END__ = .;
+    __DTOR_LIST__ = .;
+    LONG((__DTOR_END__ - __DTOR_LIST__) / 4 - 2)
+    *(.dtors)
+     LONG(0)
+    __DTOR_END__ = .;
+    _etext  =  .;
+    *(.lit)
+    *(.shdata)
+  }  > ram
+  .shbss SIZEOF(.text) + ADDR(.text) :	{
+    *(.shbss)
+  } 
+  .talias : { }  > ram
+  .data  : {
+    sdata  =  .;
+    _sdata  =  .;
+    *(.data)
+    edata  =  .;
+    _edata  =  .;
+  } > ram
+  .bss SIZEOF(.data) + ADDR(.data) : {
+   sbss = . ;
+   _sbss = . ;
+   __bss_start = ALIGN(0x8);
+   __bss_start = ALIGN(0x8);
+   *(.bss)
+   *(COMMON)
+     end = ALIGN(0x8);
+     _end = ALIGN(0x8);
+     __end = ALIGN(0x8);
+     ebss = .;
+     _ebss = .;
+  }
+  .mstack  : { }  > ram
+  .rstack  : { }  > ram
+  .stab  0 (NOLOAD) : {
+    [ .stab ]
+  }
+  .stabstr  0 (NOLOAD) :
+  {
+    [ .stabstr ]
+  }
+  /* DWARF debug sections.
+     Symbols in the DWARF debugging sections are relative to the beginning
+     of the section so we begin them at 0.  */
+  /* DWARF 1 */
+  .debug          0 : { *(.debug) }
+  .line           0 : { *(.line) }
+  /* GNU DWARF 1 extensions */
+  .debug_srcinfo  0 : { *(.debug_srcinfo) }
+  .debug_sfnames  0 : { *(.debug_sfnames) }
+  /* DWARF 1.1 and DWARF 2 */
+  .debug_aranges  0 : { *(.debug_aranges) }
+  .debug_pubnames 0 : { *(.debug_pubnames) }
+  /* DWARF 2 */
+  .debug_info     0 : { *(.debug_info) }
+  .debug_abbrev   0 : { *(.debug_abbrev) }
+  .debug_line     0 : { *(.debug_line) }
+  .debug_frame    0 : { *(.debug_frame) }
+  .debug_str      0 : { *(.debug_str) }
+  .debug_loc      0 : { *(.debug_loc) }
+  .debug_macinfo  0 : { *(.debug_macinfo) }
+  /* SGI/MIPS DWARF 2 extensions */
+  .debug_weaknames 0 : { *(.debug_weaknames) }
+  .debug_funcnames 0 : { *(.debug_funcnames) }
+  .debug_typenames 0 : { *(.debug_typenames) }
+  .debug_varnames  0 : { *(.debug_varnames) }
+  /* These must appear regardless of  .  */
+}
diff --git a/libgloss/sparc/ex931.ld b/libgloss/sparc/ex931.ld
new file mode 100644
index 0000000..26ffb4d
--- /dev/null
+++ b/libgloss/sparc/ex931.ld
@@ -0,0 +1,160 @@
+/*
+ *uncomment this if you want the linker to output srecords.
+OUTPUT_FORMAT(srec)
+ *
+ */
+ENTRY(_start)
+STARTUP(crt0.o)
+OUTPUT_ARCH(sparc)
+SEARCH_DIR(.)
+__DYNAMIC  =  0;
+GROUP (-lc -lslite931 -lgcc)
+
+/*
+ * The memory map looks like this:
+ * +--------------------+ <- low memory
+ * | .text              |
+ * |        _stext       |
+ * |        _etext      |
+ * |        ctor list   | the ctor and dtor lists are for
+ * |        dtor list   | C++ support
+ * |        _end_text   |
+ * +--------------------+
+ * | .data              | initialized data goes here
+ * |        _sdata      |
+ * |        _edata      |
+ * +--------------------+
+ * | .bss               |
+ * |        __bss_start | start of bss, cleared by crt0
+ * |        _end        | start of heap, used by sbrk()
+ * +--------------------+
+ * |    heap space      |
+ * |        _ENDHEAP    |
+ * |    stack space     | 
+ * |        __stack     | top of stack
+ * +--------------------+ <- high memory
+ */
+
+_STACK_SIZE = (16 * 1024);
+_RAM_SIZE = 2M;
+_RAM_START = 0x40000000;
+_RAM_END = _RAM_START + _RAM_SIZE;
+
+/*
+ * Base address of the on-CPU peripherals. This is for compatability
+ * with the simulator.
+ */
+
+_ERC32_MEC = 0x0;
+
+/*
+ * Setup the memory map of the MB86931-EB Board (ex931)
+ * stack grows down towards low memory. 
+ */
+MEMORY
+{
+  ram (rwx) : ORIGIN = 0x40000000, LENGTH = 2M
+}
+
+__stack = _RAM_START + _RAM_SIZE - 4 * 16;
+__trap_stack = (_RAM_START + _RAM_SIZE - 4 * 16) - _STACK_SIZE;
+
+/*
+ * All the symbols that might be accessed from C code need to be
+ * listed twice, once with an additional underscore. aout format needs
+ * and extra underscore, whereas coff & elf doesn't. This is to work
+ * with both.
+ */
+/*
+ * Initalize some symbols to be zero so we can reference them in the
+ * crt0 without core dumping. These functions are all optional, but
+ * we do this so we can have our crt0 always use them if they exist. 
+ * This is so BSPs work better when using the crt0 installed with gcc.
+ * We have to initalize them twice, so we cover a.out (which prepends
+ * an underscore) and coff object file formats.
+ */
+PROVIDE (hardware_init_hook = 0);
+PROVIDE (_hardware_init_hook = 0);
+PROVIDE (software_init_hook = 0);
+PROVIDE (_software_init_hook = 0);
+SECTIONS
+{
+  .text : {
+    stext = .;
+    _stext = .;
+    CREATE_OBJECT_SYMBOLS
+    *(.text)
+     __CTOR_LIST__ = .;
+    LONG((__CTOR_END__ - __CTOR_LIST__) / 4 - 2)
+    *(.ctors)
+    LONG(0)
+    __CTOR_END__ = .;
+    __DTOR_LIST__ = .;
+    LONG((__DTOR_END__ - __DTOR_LIST__) / 4 - 2)
+    *(.dtors)
+     LONG(0)
+    __DTOR_END__ = .;
+    _etext  =  .;
+    *(.lit)
+    *(.shdata)
+  }  > ram
+  .shbss SIZEOF(.text) + ADDR(.text) :	{
+    *(.shbss)
+  } 
+  .talias : { }  > ram
+  .data  : {
+    sdata  =  .;
+    _sdata  =  .;
+    *(.data)
+    edata  =  .;
+    _edata  =  .;
+  } > ram
+  .bss SIZEOF(.data) + ADDR(.data) : {
+   sbss = . ;
+   _sbss = . ;
+   __bss_start = ALIGN(0x8);
+   __bss_start = ALIGN(0x8);
+   *(.bss)
+   *(COMMON)
+     end = ALIGN(0x8);
+     _end = ALIGN(0x8);
+     __end = ALIGN(0x8);
+     ebss = .;
+     _ebss = .;
+  }
+  .mstack  : { }  > ram
+  .rstack  : { }  > ram
+  .stab  0 (NOLOAD) : {
+    [ .stab ]
+  }
+  .stabstr  0 (NOLOAD) :
+  {
+    [ .stabstr ]
+  }
+  /* DWARF debug sections.
+     Symbols in the DWARF debugging sections are relative to the beginning
+     of the section so we begin them at 0.  */
+  /* DWARF 1 */
+  .debug          0 : { *(.debug) }
+  .line           0 : { *(.line) }
+  /* GNU DWARF 1 extensions */
+  .debug_srcinfo  0 : { *(.debug_srcinfo) }
+  .debug_sfnames  0 : { *(.debug_sfnames) }
+  /* DWARF 1.1 and DWARF 2 */
+  .debug_aranges  0 : { *(.debug_aranges) }
+  .debug_pubnames 0 : { *(.debug_pubnames) }
+  /* DWARF 2 */
+  .debug_info     0 : { *(.debug_info) }
+  .debug_abbrev   0 : { *(.debug_abbrev) }
+  .debug_line     0 : { *(.debug_line) }
+  .debug_frame    0 : { *(.debug_frame) }
+  .debug_str      0 : { *(.debug_str) }
+  .debug_loc      0 : { *(.debug_loc) }
+  .debug_macinfo  0 : { *(.debug_macinfo) }
+  /* SGI/MIPS DWARF 2 extensions */
+  .debug_weaknames 0 : { *(.debug_weaknames) }
+  .debug_funcnames 0 : { *(.debug_funcnames) }
+  .debug_typenames 0 : { *(.debug_typenames) }
+  .debug_varnames  0 : { *(.debug_varnames) }
+  /* These must appear regardless of  .  */
+}
diff --git a/libgloss/sparc/ex934.ld b/libgloss/sparc/ex934.ld
new file mode 100644
index 0000000..7d1d5ed
--- /dev/null
+++ b/libgloss/sparc/ex934.ld
@@ -0,0 +1,160 @@
+/*
+ *uncomment this if you want the linker to output srecords.
+OUTPUT_FORMAT(srec)
+ *
+ */
+ENTRY(_start)
+STARTUP(crt0.o)
+OUTPUT_ARCH(sparc)
+SEARCH_DIR(.)
+__DYNAMIC  =  0;
+GROUP (-lc -lslite934 -lgcc)
+
+/*
+ * The memory map looks like this:
+ * +--------------------+ <- low memory
+ * | .text              |
+ * |        _stext       |
+ * |        _etext      |
+ * |        ctor list   | the ctor and dtor lists are for
+ * |        dtor list   | C++ support
+ * |        _end_text   |
+ * +--------------------+
+ * | .data              | initialized data goes here
+ * |        _sdata      |
+ * |        _edata      |
+ * +--------------------+
+ * | .bss               |
+ * |        __bss_start | start of bss, cleared by crt0
+ * |        _end        | start of heap, used by sbrk()
+ * +--------------------+
+ * |    heap space      |
+ * |        _ENDHEAP    |
+ * |    stack space     | 
+ * |        __stack     | top of stack
+ * +--------------------+ <- high memory
+ */
+
+_STACK_SIZE = (16 * 1024);
+_RAM_SIZE = 2M;
+_RAM_START = 0x40010000;
+_RAM_END = _RAM_START + _RAM_SIZE;
+
+/*
+ * Base address of the on-CPU peripherals. This is for compatability
+ * with the simulator.
+ */
+
+_ERC32_MEC = 0x0;
+
+/*
+ * Setup the memory map of the MB86931-EB Board (ex931)
+ * stack grows down towards low memory. 
+ */
+MEMORY
+{
+  ram (rwx) : ORIGIN = 0x40010000, LENGTH = 2M
+}
+
+__stack = _RAM_START + _RAM_SIZE - 4 * 16;
+__trap_stack = (_RAM_START + _RAM_SIZE - 4 * 16) - _STACK_SIZE;
+
+/*
+ * All the symbols that might be accessed from C code need to be
+ * listed twice, once with an additional underscore. aout format needs
+ * and extra underscore, whereas coff & elf doesn't. This is to work
+ * with both.
+ */
+/*
+ * Initalize some symbols to be zero so we can reference them in the
+ * crt0 without core dumping. These functions are all optional, but
+ * we do this so we can have our crt0 always use them if they exist. 
+ * This is so BSPs work better when using the crt0 installed with gcc.
+ * We have to initalize them twice, so we cover a.out (which prepends
+ * an underscore) and coff object file formats.
+ */
+PROVIDE (hardware_init_hook = 0);
+PROVIDE (_hardware_init_hook = 0);
+PROVIDE (software_init_hook = 0);
+PROVIDE (_software_init_hook = 0);
+SECTIONS
+{
+  .text : {
+    stext = .;
+    _stext = .;
+    CREATE_OBJECT_SYMBOLS
+    *(.text)
+     __CTOR_LIST__ = .;
+    LONG((__CTOR_END__ - __CTOR_LIST__) / 4 - 2)
+    *(.ctors)
+    LONG(0)
+    __CTOR_END__ = .;
+    __DTOR_LIST__ = .;
+    LONG((__DTOR_END__ - __DTOR_LIST__) / 4 - 2)
+    *(.dtors)
+     LONG(0)
+    __DTOR_END__ = .;
+    _etext  =  .;
+    *(.lit)
+    *(.shdata)
+  }  > ram
+  .shbss SIZEOF(.text) + ADDR(.text) :	{
+    *(.shbss)
+  } 
+  .talias : { }  > ram
+  .data  : {
+    sdata  =  .;
+    _sdata  =  .;
+    *(.data)
+    edata  =  .;
+    _edata  =  .;
+  } > ram
+  .bss SIZEOF(.data) + ADDR(.data) : {
+   sbss = . ;
+   _sbss = . ;
+   __bss_start = ALIGN(0x8);
+   __bss_start = ALIGN(0x8);
+   *(.bss)
+   *(COMMON)
+     end = ALIGN(0x8);
+     _end = ALIGN(0x8);
+     __end = ALIGN(0x8);
+     ebss = .;
+     _ebss = .;
+  }
+  .mstack  : { }  > ram
+  .rstack  : { }  > ram
+  .stab  0 (NOLOAD) : {
+    [ .stab ]
+  }
+  .stabstr  0 (NOLOAD) :
+  {
+    [ .stabstr ]
+  }
+  /* DWARF debug sections.
+     Symbols in the DWARF debugging sections are relative to the beginning
+     of the section so we begin them at 0.  */
+  /* DWARF 1 */
+  .debug          0 : { *(.debug) }
+  .line           0 : { *(.line) }
+  /* GNU DWARF 1 extensions */
+  .debug_srcinfo  0 : { *(.debug_srcinfo) }
+  .debug_sfnames  0 : { *(.debug_sfnames) }
+  /* DWARF 1.1 and DWARF 2 */
+  .debug_aranges  0 : { *(.debug_aranges) }
+  .debug_pubnames 0 : { *(.debug_pubnames) }
+  /* DWARF 2 */
+  .debug_info     0 : { *(.debug_info) }
+  .debug_abbrev   0 : { *(.debug_abbrev) }
+  .debug_line     0 : { *(.debug_line) }
+  .debug_frame    0 : { *(.debug_frame) }
+  .debug_str      0 : { *(.debug_str) }
+  .debug_loc      0 : { *(.debug_loc) }
+  .debug_macinfo  0 : { *(.debug_macinfo) }
+  /* SGI/MIPS DWARF 2 extensions */
+  .debug_weaknames 0 : { *(.debug_weaknames) }
+  .debug_funcnames 0 : { *(.debug_funcnames) }
+  .debug_typenames 0 : { *(.debug_typenames) }
+  .debug_varnames  0 : { *(.debug_varnames) }
+  /* These must appear regardless of  .  */
+}
diff --git a/libgloss/sparc/fixctors.c b/libgloss/sparc/fixctors.c
new file mode 100644
index 0000000..484023c
--- /dev/null
+++ b/libgloss/sparc/fixctors.c
@@ -0,0 +1,54 @@
+/* Code to byte-swap static constructor/destructor tables on
+   broken a.out little-endian targets. The startup code should call
+   __fix_ctors just before calling main.  It is safe to use on non-broken
+   or big-endian targets. */
+
+extern long __CTOR_LIST__[];
+extern long __DTOR_LIST__[];
+
+static void
+byte_swap (long *entry)
+{
+  unsigned char *p = (unsigned char *)entry;
+  unsigned char tmp;
+
+  tmp = p[0];
+  p[0] = p[3];
+  p[3] = tmp;
+  tmp = p[1];
+  p[1] = p[2];
+  p[2] = tmp;
+}
+
+static void
+fix_table (long *table)
+{
+  long len = table[0];
+
+  /* The heuristic for deciding if a table is broken is to examine
+     the word at the start of the table, which contains the number
+     of function pointers immediately following.  If the low word
+     is zero, and the high word is non-zero, it's very likely that
+     it is byte-swapped.  This test will fail if the program has
+     an exact multiple of 64K static constructors or destructors, a very
+     unlikely situation. */
+  if ((len & 0xffff) == 0 && (len & 0xffff0000) != 0)
+    {
+
+      /* The table looks broken.  Byte-swap all the words in the table, up
+         to a NULL entry, which marks the end of the table. */
+      do
+	{
+	  byte_swap (table);
+	  table++;
+	}
+      while (*table);
+    }
+}
+
+void
+__fix_ctors (void)
+{
+  fix_table (__CTOR_LIST__);
+  fix_table (__DTOR_LIST__);
+}
diff --git a/libgloss/sparc/libsys/Makefile.in b/libgloss/sparc/libsys/Makefile.in
new file mode 100644
index 0000000..f3a036f
--- /dev/null
+++ b/libgloss/sparc/libsys/Makefile.in
@@ -0,0 +1,167 @@
+# Makefile for libgloss/sparc/libsys
+# Copyright (c) 1996 Cygnus Support.
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms are permitted
+# provided that the above copyright notice and this paragraph are
+# duplicated in all such forms and that any documentation,
+# advertising materials, and other materials related to such
+# distribution and use acknowledge that the software was developed
+# at Cygnus Support, Inc.  Cygnus Support, Inc. may not be used to
+# endorse or promote products derived from this software without
+# specific prior written permission.
+# THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+
+VPATH = @srcdir@
+srcdir = @srcdir@
+objdir = .
+srcroot = $(srcdir)/../..
+objroot = $(objdir)/../..
+
+prefix = @prefix@
+exec_prefix = @exec_prefix@
+
+host_alias = @host_alias@
+target_alias = @target_alias@
+
+bindir = @bindir@
+libdir = @libdir@
+tooldir = $(exec_prefix)/$(target_alias)
+
+INSTALL = @INSTALL@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+INSTALL_DATA = @INSTALL_DATA@
+
+SHELL = /bin/sh
+
+CC = @CC@
+
+AS = @AS@
+AR = @AR@
+LD = @LD@
+RANLIB = @RANLIB@
+
+# _r.o is for the reentrant syscall stubs.
+# The .S_r.o/.c_r.o rules are from host/any.
+
+.SUFFIXES: .c .S .o _r.o
+
+.S_r.o:
+	$(CC) $(CFLAGS) $(CROSS_CFLAGS) $(TARGET_CFLAGS) $(NEWLIB_CFLAGS) -DREENT $(INCLUDES) -c $< -o $@
+.c_r.o:
+	$(CC) $(CFLAGS) $(CROSS_CFLAGS) $(TARGET_CFLAGS) $(NEWLIB_CFLAGS) -DREENT $(INCLUDES) -c $< -o $@
+
+# CFILES_R, SFILES_R, and TEMPLATE_SFILES_R define those system calls that are
+# needed by the ANSI C part of newlib when REENTRANT_SYSCALLS_PROVIDED is
+# defined.
+
+CFILES = isatty.c
+
+CFILES_R =
+
+SFILES = cerror.S _exit.S
+
+SFILES_R = sbrk.S
+
+# List of files built from template.S (with an '_' suffix).
+
+TEMPLATE_SFILES = chdir_ lstat_
+
+TEMPLATE_SFILES_R = close_ fstat_ getpid_ kill_ \
+	lseek_ open_ read_ stat_ unlink_ write_
+
+# If newlib defines REENTRANT_SYSCALLS_PROVIDED, then these are used as well.
+REENTRANT_OFILES = $(SFILES_R:.S=_r.o) $(TEMPLATE_SFILES_R:_=_r.o) \
+	$(CFILES_R:.c=_r.o)
+
+OFILES = $(SFILES:.S=.o) $(SFILES_R:.S=.o) \
+	$(TEMPLATE_SFILES:_=.o) $(TEMPLATE_SFILES_R:_=.o) \
+	$(CFILES:.c=.o) $(CFILES_R:.c=.o) \
+	$(REENTRANT_OFILES)
+
+#### Host specific Makefile fragment comes in here.
+@host_makefile_frag@
+
+all: libsys.a libsys-crt0.o
+
+libsys.a: $(OFILES)
+	rm -f $@
+	$(AR) $(AR_FLAGS) $@ $(OFILES)
+
+install:
+	$(INSTALL_DATA) libsys-crt0.o $(tooldir)/lib/libsys-crt0.o
+	$(INSTALL_DATA) libsys.a $(tooldir)/lib/libsys.a
+
+doc:
+
+.PHONY: info install-info clean-info
+info:
+install-info:
+clean-info:
+
+clean mostlyclean:
+	rm -f *.o *.a *.s stamp-srcs
+
+distclean maintainer-clean realclean: clean
+	rm -f Makefile config.status
+
+Makefile: Makefile.in config.status @host_makefile_frag_path@
+	$(SHELL) config.status
+
+config.status: configure
+	$(SHELL) config.status --recheck
+
+stamp-srcs: Makefile template.S template_r.S
+	for f in $(TEMPLATE_SFILES:_=) ; \
+	do \
+		$(CC) -E -Dfunc=$$f \
+		$(CFLAGS) $(CROSS_CFLAGS) $(TARGET_CFLAGS) $(NEWLIB_CFLAGS) $(INCLUDES) \
+		$(srcdir)/template.S >$$f.S ; \
+	done
+	for f in $(TEMPLATE_SFILES_R:_=) ; \
+	do \
+		$(CC) -E -Dfunc=$$f \
+		$(CFLAGS) $(CROSS_CFLAGS) $(TARGET_CFLAGS) $(NEWLIB_CFLAGS) $(INCLUDES) \
+		$(srcdir)/template_r.S | sed -e 's/^_/#/' >$$f.S ; \
+	done
+	touch stamp-srcs
+
+# Make a dependency for each file built from a template.
+
+$(TEMPLATE_SFILES:_=.S) $(TEMPLATE_SFILES_R:_=.S): stamp-srcs
+
+# To support SunOS broken VPATH (sigh).
+
+_exit.o: _exit.S
+cerror.o: cerror.S
+chdir.o: chdir.S
+close.o: close.S
+fstat.o: fstat.S
+getpid.o: getpid.S
+isatty.o: isatty.c
+kill.o: kill.S
+libsys-crt0.o: libsys-crt0.S
+lseek.o: lseek.S
+lstat.o: lstat.S
+open.o: open.S
+read.o: read.S
+sbrk.o: sbrk.S
+stat.o: stat.S
+write.o: write.S
+
+# Reentrant versions ...
+# These are all needed to support the ANSI C library routines.
+
+close_r.o: close.S
+fstat_r.o: fstat.S
+getpid_r.o: getpid.S
+kill_r.o: kill.S
+lseek_r.o: lseek.S
+open_r.o: open.S
+read_r.o: read.S
+sbrk_r.o: sbrk.S
+stat_r.o: stat.S
+unlink_r.o: unlink.S
+write_r.o: write.S
diff --git a/libgloss/sparc/libsys/_exit.S b/libgloss/sparc/libsys/_exit.S
new file mode 100644
index 0000000..52c5c14
--- /dev/null
+++ b/libgloss/sparc/libsys/_exit.S
@@ -0,0 +1,14 @@
+! _exit() system call
+
+#include "syscallasm.h"
+
+	TEXT_SECTION
+	ALIGN (4)
+	GLOBAL (ASM_SYMBOL (_exit))
+ASM_SYMBOL (_exit):
+	mov	SYS_exit,%g1
+	ta	SYSCALL_TRAP
+
+! If that returns (yikes!), try an illegal insn ...
+
+	WORD (0)
\ No newline at end of file
diff --git a/libgloss/sparc/libsys/cerror.S b/libgloss/sparc/libsys/cerror.S
new file mode 100644
index 0000000..8ad99c2
--- /dev/null
+++ b/libgloss/sparc/libsys/cerror.S
@@ -0,0 +1,47 @@
+! Set errno.
+! This function is called by all the syscall stubs.
+!
+! FIXME: We assume errno is the first member of struct _reent.
+! Not sure what to do about this.
+
+#include "syscallasm.h"
+
+	DATA_SECTION
+	ALIGN (4)
+	GLOBAL (ASM_SYMBOL (errno))	! FIXME: ASM_PRIVATE_SYMBOL ?
+ASM_SYMBOL (errno):
+	WORD (0)
+
+	TEXT_SECTION
+	ALIGN (4)
+
+	GLOBAL (ASM_PRIVATE_SYMBOL (cerror))
+ASM_PRIVATE_SYMBOL (cerror):
+	sethi	%hi (ASM_SYMBOL (errno)),%g1
+	st	%o0,[%g1+%lo (ASM_SYMBOL (errno))]
+	jmpl	%o7+8,%g0
+	mov	-1,%o0
+
+	GLOBAL (ASM_PRIVATE_SYMBOL (cerror_r))
+ASM_PRIVATE_SYMBOL (cerror_r):
+	st	%o0,[%o1]
+	jmpl	%o7+8,%g0
+	mov	-1,%o0
+
+! Since all system calls need this file, we put various state globals
+! here as well.
+
+	DATA_SECTION
+
+! CURBRK contains the current top of allocated space.
+! END is a private symbol in svr4, but a public one in sunos4.
+! FIXME: CURBRK is 4 bytes for now.
+
+	ALIGN (4)
+	GLOBAL (ASM_PRIVATE_SYMBOL (curbrk))
+ASM_PRIVATE_SYMBOL (curbrk):
+#ifdef SVR4
+	WORD (ASM_PRIVATE_SYMBOL (end))
+#else
+	WORD (ASM_SYMBOL (end))
+#endif
diff --git a/libgloss/sparc/libsys/configure b/libgloss/sparc/libsys/configure
new file mode 100755
index 0000000..3702cce
--- /dev/null
+++ b/libgloss/sparc/libsys/configure
@@ -0,0 +1,991 @@
+#! /bin/sh
+
+# Guess values for system-dependent variables and create Makefiles.
+# Generated automatically using autoconf version 2.10 
+# Copyright (C) 1992, 93, 94, 95, 96 Free Software Foundation, Inc.
+#
+# This configure script is free software; the Free Software Foundation
+# gives unlimited permission to copy, distribute and modify it.
+
+# Defaults:
+ac_help=
+ac_default_prefix=/usr/local
+# Any additions from configure.in:
+
+# Initialize some variables set by options.
+# The variables have the same names as the options, with
+# dashes changed to underlines.
+build=NONE
+cache_file=./config.cache
+exec_prefix=NONE
+host=NONE
+no_create=
+nonopt=NONE
+no_recursion=
+prefix=NONE
+program_prefix=NONE
+program_suffix=NONE
+program_transform_name=s,x,x,
+silent=
+site=
+srcdir=
+target=NONE
+verbose=
+x_includes=NONE
+x_libraries=NONE
+bindir='${exec_prefix}/bin'
+sbindir='${exec_prefix}/sbin'
+libexecdir='${exec_prefix}/libexec'
+datadir='${prefix}/share'
+sysconfdir='${prefix}/etc'
+sharedstatedir='${prefix}/com'
+localstatedir='${prefix}/var'
+libdir='${exec_prefix}/lib'
+includedir='${prefix}/include'
+oldincludedir='/usr/include'
+infodir='${prefix}/info'
+mandir='${prefix}/man'
+
+# Initialize some other variables.
+subdirs=
+MFLAGS= MAKEFLAGS=
+
+ac_prev=
+for ac_option
+do
+
+  # If the previous option needs an argument, assign it.
+  if test -n "$ac_prev"; then
+    eval "$ac_prev=\$ac_option"
+    ac_prev=
+    continue
+  fi
+
+  case "$ac_option" in
+  -*=*) ac_optarg=`echo "$ac_option" | sed 's/[-_a-zA-Z0-9]*=//'` ;;
+  *) ac_optarg= ;;
+  esac
+
+  # Accept the important Cygnus configure options, so we can diagnose typos.
+
+  case "$ac_option" in
+
+  -bindir | --bindir | --bindi | --bind | --bin | --bi)
+    ac_prev=bindir ;;
+  -bindir=* | --bindir=* | --bindi=* | --bind=* | --bin=* | --bi=*)
+    bindir="$ac_optarg" ;;
+
+  -build | --build | --buil | --bui | --bu)
+    ac_prev=build ;;
+  -build=* | --build=* | --buil=* | --bui=* | --bu=*)
+    build="$ac_optarg" ;;
+
+  -cache-file | --cache-file | --cache-fil | --cache-fi \
+  | --cache-f | --cache- | --cache | --cach | --cac | --ca | --c)
+    ac_prev=cache_file ;;
+  -cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \
+  | --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* | --c=*)
+    cache_file="$ac_optarg" ;;
+
+  -datadir | --datadir | --datadi | --datad | --data | --dat | --da)
+    ac_prev=datadir ;;
+  -datadir=* | --datadir=* | --datadi=* | --datad=* | --data=* | --dat=* \
+  | --da=*)
+    datadir="$ac_optarg" ;;
+
+  -disable-* | --disable-*)
+    ac_feature=`echo $ac_option|sed -e 's/-*disable-//'`
+    # Reject names that are not valid shell variable names.
+    if test -n "`echo $ac_feature| sed 's/[-a-zA-Z0-9_]//g'`"; then
+      { echo "configure: error: $ac_feature: invalid feature name" 1>&2; exit 1; }
+    fi
+    ac_feature=`echo $ac_feature| sed 's/-/_/g'`
+    eval "enable_${ac_feature}=no" ;;
+
+  -enable-* | --enable-*)
+    ac_feature=`echo $ac_option|sed -e 's/-*enable-//' -e 's/=.*//'`
+    # Reject names that are not valid shell variable names.
+    if test -n "`echo $ac_feature| sed 's/[-_a-zA-Z0-9]//g'`"; then
+      { echo "configure: error: $ac_feature: invalid feature name" 1>&2; exit 1; }
+    fi
+    ac_feature=`echo $ac_feature| sed 's/-/_/g'`
+    case "$ac_option" in
+      *=*) ;;
+      *) ac_optarg=yes ;;
+    esac
+    eval "enable_${ac_feature}='$ac_optarg'" ;;
+
+  -exec-prefix | --exec_prefix | --exec-prefix | --exec-prefi \
+  | --exec-pref | --exec-pre | --exec-pr | --exec-p | --exec- \
+  | --exec | --exe | --ex)
+    ac_prev=exec_prefix ;;
+  -exec-prefix=* | --exec_prefix=* | --exec-prefix=* | --exec-prefi=* \
+  | --exec-pref=* | --exec-pre=* | --exec-pr=* | --exec-p=* | --exec-=* \
+  | --exec=* | --exe=* | --ex=*)
+    exec_prefix="$ac_optarg" ;;
+
+  -gas | --gas | --ga | --g)
+    # Obsolete; use --with-gas.
+    with_gas=yes ;;
+
+  -help | --help | --hel | --he)
+    # Omit some internal or obsolete options to make the list less imposing.
+    # This message is too long to be a string in the A/UX 3.1 sh.
+    cat << EOF
+Usage: configure [options] [host]
+Options: [defaults in brackets after descriptions]
+Configuration:
+  --cache-file=FILE       cache test results in FILE
+  --help                  print this message
+  --no-create             do not create output files
+  --quiet, --silent       do not print \`checking...' messages
+  --version               print the version of autoconf that created configure
+Directory and file names:
+  --prefix=PREFIX         install architecture-independent files in PREFIX
+                          [$ac_default_prefix]
+  --exec-prefix=EPREFIX   install architecture-dependent files in EPREFIX
+                          [same as prefix]
+  --bindir=DIR            user executables in DIR [EPREFIX/bin]
+  --sbindir=DIR           system admin executables in DIR [EPREFIX/sbin]
+  --libexecdir=DIR        program executables in DIR [EPREFIX/libexec]
+  --datadir=DIR           read-only architecture-independent data in DIR
+                          [PREFIX/share]
+  --sysconfdir=DIR        read-only single-machine data in DIR [PREFIX/etc]
+  --sharedstatedir=DIR    modifiable architecture-independent data in DIR
+                          [PREFIX/com]
+  --localstatedir=DIR     modifiable single-machine data in DIR [PREFIX/var]
+  --libdir=DIR            object code libraries in DIR [EPREFIX/lib]
+  --includedir=DIR        C header files in DIR [PREFIX/include]
+  --oldincludedir=DIR     C header files for non-gcc in DIR [/usr/include]
+  --infodir=DIR           info documentation in DIR [PREFIX/info]
+  --mandir=DIR            man documentation in DIR [PREFIX/man]
+  --srcdir=DIR            find the sources in DIR [configure dir or ..]
+  --program-prefix=PREFIX prepend PREFIX to installed program names
+  --program-suffix=SUFFIX append SUFFIX to installed program names
+  --program-transform-name=PROGRAM
+                          run sed PROGRAM on installed program names
+EOF
+    cat << EOF
+Host type:
+  --build=BUILD           configure for building on BUILD [BUILD=HOST]
+  --host=HOST             configure for HOST [guessed]
+  --target=TARGET         configure for TARGET [TARGET=HOST]
+Features and packages:
+  --disable-FEATURE       do not include FEATURE (same as --enable-FEATURE=no)
+  --enable-FEATURE[=ARG]  include FEATURE [ARG=yes]
+  --with-PACKAGE[=ARG]    use PACKAGE [ARG=yes]
+  --without-PACKAGE       do not use PACKAGE (same as --with-PACKAGE=no)
+  --x-includes=DIR        X include files are in DIR
+  --x-libraries=DIR       X library files are in DIR
+EOF
+    if test -n "$ac_help"; then
+      echo "--enable and --with options recognized:$ac_help"
+    fi
+    exit 0 ;;
+
+  -host | --host | --hos | --ho)
+    ac_prev=host ;;
+  -host=* | --host=* | --hos=* | --ho=*)
+    host="$ac_optarg" ;;
+
+  -includedir | --includedir | --includedi | --included | --include \
+  | --includ | --inclu | --incl | --inc)
+    ac_prev=includedir ;;
+  -includedir=* | --includedir=* | --includedi=* | --included=* | --include=* \
+  | --includ=* | --inclu=* | --incl=* | --inc=*)
+    includedir="$ac_optarg" ;;
+
+  -infodir | --infodir | --infodi | --infod | --info | --inf)
+    ac_prev=infodir ;;
+  -infodir=* | --infodir=* | --infodi=* | --infod=* | --info=* | --inf=*)
+    infodir="$ac_optarg" ;;
+
+  -libdir | --libdir | --libdi | --libd)
+    ac_prev=libdir ;;
+  -libdir=* | --libdir=* | --libdi=* | --libd=*)
+    libdir="$ac_optarg" ;;
+
+  -libexecdir | --libexecdir | --libexecdi | --libexecd | --libexec \
+  | --libexe | --libex | --libe)
+    ac_prev=libexecdir ;;
+  -libexecdir=* | --libexecdir=* | --libexecdi=* | --libexecd=* | --libexec=* \
+  | --libexe=* | --libex=* | --libe=*)
+    libexecdir="$ac_optarg" ;;
+
+  -localstatedir | --localstatedir | --localstatedi | --localstated \
+  | --localstate | --localstat | --localsta | --localst \
+  | --locals | --local | --loca | --loc | --lo)
+    ac_prev=localstatedir ;;
+  -localstatedir=* | --localstatedir=* | --localstatedi=* | --localstated=* \
+  | --localstate=* | --localstat=* | --localsta=* | --localst=* \
+  | --locals=* | --local=* | --loca=* | --loc=* | --lo=*)
+    localstatedir="$ac_optarg" ;;
+
+  -mandir | --mandir | --mandi | --mand | --man | --ma | --m)
+    ac_prev=mandir ;;
+  -mandir=* | --mandir=* | --mandi=* | --mand=* | --man=* | --ma=* | --m=*)
+    mandir="$ac_optarg" ;;
+
+  -nfp | --nfp | --nf)
+    # Obsolete; use --without-fp.
+    with_fp=no ;;
+
+  -no-create | --no-create | --no-creat | --no-crea | --no-cre \
+  | --no-cr | --no-c)
+    no_create=yes ;;
+
+  -no-recursion | --no-recursion | --no-recursio | --no-recursi \
+  | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r)
+    no_recursion=yes ;;
+
+  -oldincludedir | --oldincludedir | --oldincludedi | --oldincluded \
+  | --oldinclude | --oldinclud | --oldinclu | --oldincl | --oldinc \
+  | --oldin | --oldi | --old | --ol | --o)
+    ac_prev=oldincludedir ;;
+  -oldincludedir=* | --oldincludedir=* | --oldincludedi=* | --oldincluded=* \
+  | --oldinclude=* | --oldinclud=* | --oldinclu=* | --oldincl=* | --oldinc=* \
+  | --oldin=* | --oldi=* | --old=* | --ol=* | --o=*)
+    oldincludedir="$ac_optarg" ;;
+
+  -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
+    ac_prev=prefix ;;
+  -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
+    prefix="$ac_optarg" ;;
+
+  -program-prefix | --program-prefix | --program-prefi | --program-pref \
+  | --program-pre | --program-pr | --program-p)
+    ac_prev=program_prefix ;;
+  -program-prefix=* | --program-prefix=* | --program-prefi=* \
+  | --program-pref=* | --program-pre=* | --program-pr=* | --program-p=*)
+    program_prefix="$ac_optarg" ;;
+
+  -program-suffix | --program-suffix | --program-suffi | --program-suff \
+  | --program-suf | --program-su | --program-s)
+    ac_prev=program_suffix ;;
+  -program-suffix=* | --program-suffix=* | --program-suffi=* \
+  | --program-suff=* | --program-suf=* | --program-su=* | --program-s=*)
+    program_suffix="$ac_optarg" ;;
+
+  -program-transform-name | --program-transform-name \
+  | --program-transform-nam | --program-transform-na \
+  | --program-transform-n | --program-transform- \
+  | --program-transform | --program-transfor \
+  | --program-transfo | --program-transf \
+  | --program-trans | --program-tran \
+  | --progr-tra | --program-tr | --program-t)
+    ac_prev=program_transform_name ;;
+  -program-transform-name=* | --program-transform-name=* \
+  | --program-transform-nam=* | --program-transform-na=* \
+  | --program-transform-n=* | --program-transform-=* \
+  | --program-transform=* | --program-transfor=* \
+  | --program-transfo=* | --program-transf=* \
+  | --program-trans=* | --program-tran=* \
+  | --progr-tra=* | --program-tr=* | --program-t=*)
+    program_transform_name="$ac_optarg" ;;
+
+  -q | -quiet | --quiet | --quie | --qui | --qu | --q \
+  | -silent | --silent | --silen | --sile | --sil)
+    silent=yes ;;
+
+  -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
+    ac_prev=sbindir ;;
+  -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
+  | --sbi=* | --sb=*)
+    sbindir="$ac_optarg" ;;
+
+  -sharedstatedir | --sharedstatedir | --sharedstatedi \
+  | --sharedstated | --sharedstate | --sharedstat | --sharedsta \
+  | --sharedst | --shareds | --shared | --share | --shar \
+  | --sha | --sh)
+    ac_prev=sharedstatedir ;;
+  -sharedstatedir=* | --sharedstatedir=* | --sharedstatedi=* \
+  | --sharedstated=* | --sharedstate=* | --sharedstat=* | --sharedsta=* \
+  | --sharedst=* | --shareds=* | --shared=* | --share=* | --shar=* \
+  | --sha=* | --sh=*)
+    sharedstatedir="$ac_optarg" ;;
+
+  -site | --site | --sit)
+    ac_prev=site ;;
+  -site=* | --site=* | --sit=*)
+    site="$ac_optarg" ;;
+
+  -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
+    ac_prev=srcdir ;;
+  -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
+    srcdir="$ac_optarg" ;;
+
+  -sysconfdir | --sysconfdir | --sysconfdi | --sysconfd | --sysconf \
+  | --syscon | --sysco | --sysc | --sys | --sy)
+    ac_prev=sysconfdir ;;
+  -sysconfdir=* | --sysconfdir=* | --sysconfdi=* | --sysconfd=* | --sysconf=* \
+  | --syscon=* | --sysco=* | --sysc=* | --sys=* | --sy=*)
+    sysconfdir="$ac_optarg" ;;
+
+  -target | --target | --targe | --targ | --tar | --ta | --t)
+    ac_prev=target ;;
+  -target=* | --target=* | --targe=* | --targ=* | --tar=* | --ta=* | --t=*)
+    target="$ac_optarg" ;;
+
+  -v | -verbose | --verbose | --verbos | --verbo | --verb)
+    verbose=yes ;;
+
+  -version | --version | --versio | --versi | --vers)
+    echo "configure generated by autoconf version 2.10"
+    exit 0 ;;
+
+  -with-* | --with-*)
+    ac_package=`echo $ac_option|sed -e 's/-*with-//' -e 's/=.*//'`
+    # Reject names that are not valid shell variable names.
+    if test -n "`echo $ac_package| sed 's/[-_a-zA-Z0-9]//g'`"; then
+      { echo "configure: error: $ac_package: invalid package name" 1>&2; exit 1; }
+    fi
+    ac_package=`echo $ac_package| sed 's/-/_/g'`
+    case "$ac_option" in
+      *=*) ;;
+      *) ac_optarg=yes ;;
+    esac
+    eval "with_${ac_package}='$ac_optarg'" ;;
+
+  -without-* | --without-*)
+    ac_package=`echo $ac_option|sed -e 's/-*without-//'`
+    # Reject names that are not valid shell variable names.
+    if test -n "`echo $ac_package| sed 's/[-a-zA-Z0-9_]//g'`"; then
+      { echo "configure: error: $ac_package: invalid package name" 1>&2; exit 1; }
+    fi
+    ac_package=`echo $ac_package| sed 's/-/_/g'`
+    eval "with_${ac_package}=no" ;;
+
+  --x)
+    # Obsolete; use --with-x.
+    with_x=yes ;;
+
+  -x-includes | --x-includes | --x-include | --x-includ | --x-inclu \
+  | --x-incl | --x-inc | --x-in | --x-i)
+    ac_prev=x_includes ;;
+  -x-includes=* | --x-includes=* | --x-include=* | --x-includ=* | --x-inclu=* \
+  | --x-incl=* | --x-inc=* | --x-in=* | --x-i=*)
+    x_includes="$ac_optarg" ;;
+
+  -x-libraries | --x-libraries | --x-librarie | --x-librari \
+  | --x-librar | --x-libra | --x-libr | --x-lib | --x-li | --x-l)
+    ac_prev=x_libraries ;;
+  -x-libraries=* | --x-libraries=* | --x-librarie=* | --x-librari=* \
+  | --x-librar=* | --x-libra=* | --x-libr=* | --x-lib=* | --x-li=* | --x-l=*)
+    x_libraries="$ac_optarg" ;;
+
+  -*) { echo "configure: error: $ac_option: invalid option; use --help to show usage" 1>&2; exit 1; }
+    ;;
+
+  *)
+    if test -n "`echo $ac_option| sed 's/[-a-z0-9.]//g'`"; then
+      echo "configure: warning: $ac_option: invalid host type" 1>&2
+    fi
+    if test "x$nonopt" != xNONE; then
+      { echo "configure: error: can only configure for one host and one target at a time" 1>&2; exit 1; }
+    fi
+    nonopt="$ac_option"
+    ;;
+
+  esac
+done
+
+if test -n "$ac_prev"; then
+  { echo "configure: error: missing argument to --`echo $ac_prev | sed 's/_/-/g'`" 1>&2; exit 1; }
+fi
+
+trap 'rm -fr conftest* confdefs* core core.* *.core $ac_clean_files; exit 1' 1 2 15
+
+# File descriptor usage:
+# 0 standard input
+# 1 file creation
+# 2 errors and warnings
+# 3 some systems may open it to /dev/tty
+# 4 used on the Kubota Titan
+# 6 checking for... messages and results
+# 5 compiler messages saved in config.log
+if test "$silent" = yes; then
+  exec 6>/dev/null
+else
+  exec 6>&1
+fi
+exec 5>./config.log
+
+echo "\
+This file contains any messages produced by compilers while
+running configure, to aid debugging if configure makes a mistake.
+" 1>&5
+
+# Strip out --no-create and --no-recursion so they do not pile up.
+# Also quote any args containing shell metacharacters.
+ac_configure_args=
+for ac_arg
+do
+  case "$ac_arg" in
+  -no-create | --no-create | --no-creat | --no-crea | --no-cre \
+  | --no-cr | --no-c) ;;
+  -no-recursion | --no-recursion | --no-recursio | --no-recursi \
+  | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r) ;;
+  *" "*|*"	"*|*[\[\]\~\#\$\^\&\*\(\)\{\}\\\|\;\<\>\?]*)
+  ac_configure_args="$ac_configure_args '$ac_arg'" ;;
+  *) ac_configure_args="$ac_configure_args $ac_arg" ;;
+  esac
+done
+
+# NLS nuisances.
+# Only set LANG and LC_ALL to C if already set.
+# These must not be set unconditionally because not all systems understand
+# e.g. LANG=C (notably SCO).
+if test "${LC_ALL+set}" = set; then LC_ALL=C; export LC_ALL; fi
+if test "${LANG+set}"   = set; then LANG=C;   export LANG;   fi
+
+# confdefs.h avoids OS command line length limits that DEFS can exceed.
+rm -rf conftest* confdefs.h
+# AIX cpp loses on an empty file, so make sure it contains at least a newline.
+echo > confdefs.h
+
+# A filename unique to this package, relative to the directory that
+# configure is in, which we can look for to find out if srcdir is correct.
+ac_unique_file=libsys-crt0.S
+
+# Find the source files, if location was not specified.
+if test -z "$srcdir"; then
+  ac_srcdir_defaulted=yes
+  # Try the directory containing this script, then its parent.
+  ac_prog=$0
+  ac_confdir=`echo $ac_prog|sed 's%/[^/][^/]*$%%'`
+  test "x$ac_confdir" = "x$ac_prog" && ac_confdir=.
+  srcdir=$ac_confdir
+  if test ! -r $srcdir/$ac_unique_file; then
+    srcdir=..
+  fi
+else
+  ac_srcdir_defaulted=no
+fi
+if test ! -r $srcdir/$ac_unique_file; then
+  if test "$ac_srcdir_defaulted" = yes; then
+    { echo "configure: error: can not find sources in $ac_confdir or .." 1>&2; exit 1; }
+  else
+    { echo "configure: error: can not find sources in $srcdir" 1>&2; exit 1; }
+  fi
+fi
+srcdir=`echo "${srcdir}" | sed 's%\([^/]\)/*$%\1%'`
+
+# Prefer explicitly selected file to automatically selected ones.
+if test -z "$CONFIG_SITE"; then
+  if test "x$prefix" != xNONE; then
+    CONFIG_SITE="$prefix/share/config.site $prefix/etc/config.site"
+  else
+    CONFIG_SITE="$ac_default_prefix/share/config.site $ac_default_prefix/etc/config.site"
+  fi
+fi
+for ac_site_file in $CONFIG_SITE; do
+  if test -r "$ac_site_file"; then
+    echo "loading site script $ac_site_file"
+    . "$ac_site_file"
+  fi
+done
+
+if test -r "$cache_file"; then
+  echo "loading cache $cache_file"
+  . $cache_file
+else
+  echo "creating cache $cache_file"
+  > $cache_file
+fi
+
+ac_ext=c
+# CFLAGS is not in ac_cpp because -g, -O, etc. are not valid cpp options.
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='${CC-cc} -c $CFLAGS $CPPFLAGS conftest.$ac_ext 1>&5'
+ac_link='${CC-cc} -o conftest $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
+
+if (echo "testing\c"; echo 1,2,3) | grep c >/dev/null; then
+  # Stardent Vistra SVR4 grep lacks -e, says ghazi@caip.rutgers.edu.
+  if (echo -n testing; echo 1,2,3) | sed s/-n/xn/ | grep xn >/dev/null; then
+    ac_n= ac_c='
+' ac_t='	'
+  else
+    ac_n=-n ac_c= ac_t=
+  fi
+else
+  ac_n= ac_c='\c' ac_t=
+fi
+
+
+
+if test "$srcdir" = "." ; then
+  mdir=`echo "${with_multisubdir}/" \
+    | sed -e 's,\([^/][^/]*\),..,g' -e 's,^/$,,'`
+  ac_aux_dir=
+for ac_dir in ${mdir}../../../.. $srcdir/${mdir}../../../..; do
+  if test -f $ac_dir/install-sh; then
+    ac_aux_dir=$ac_dir
+    ac_install_sh="$ac_aux_dir/install-sh -c"
+    break
+  elif test -f $ac_dir/install.sh; then
+    ac_aux_dir=$ac_dir
+    ac_install_sh="$ac_aux_dir/install.sh -c"
+    break
+  fi
+done
+if test -z "$ac_aux_dir"; then
+  { echo "configure: error: can not find install-sh or install.sh in ${mdir}../../../.. $srcdir/${mdir}../../../.." 1>&2; exit 1; }
+fi
+ac_config_guess=$ac_aux_dir/config.guess
+ac_config_sub=$ac_aux_dir/config.sub
+ac_configure=$ac_aux_dir/configure # This should be Cygnus configure.
+
+else
+  ac_aux_dir=
+for ac_dir in ${srcdir}/../../.. $srcdir/${srcdir}/../../..; do
+  if test -f $ac_dir/install-sh; then
+    ac_aux_dir=$ac_dir
+    ac_install_sh="$ac_aux_dir/install-sh -c"
+    break
+  elif test -f $ac_dir/install.sh; then
+    ac_aux_dir=$ac_dir
+    ac_install_sh="$ac_aux_dir/install.sh -c"
+    break
+  fi
+done
+if test -z "$ac_aux_dir"; then
+  { echo "configure: error: can not find install-sh or install.sh in ${srcdir}/../../.. $srcdir/${srcdir}/../../.." 1>&2; exit 1; }
+fi
+ac_config_guess=$ac_aux_dir/config.guess
+ac_config_sub=$ac_aux_dir/config.sub
+ac_configure=$ac_aux_dir/configure # This should be Cygnus configure.
+
+fi
+
+# Find a good install program.  We prefer a C program (faster),
+# so one script is as good as another.  But avoid the broken or
+# incompatible versions:
+# SysV /etc/install, /usr/sbin/install
+# SunOS /usr/etc/install
+# IRIX /sbin/install
+# AIX /bin/install
+# AFS /usr/afsws/bin/install, which mishandles nonexistent args
+# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
+# ./install, which can be erroneously created by make from ./install.sh.
+echo $ac_n "checking for a BSD compatible install""... $ac_c" 1>&6
+if test -z "$INSTALL"; then
+if eval "test \"`echo '$''{'ac_cv_path_install'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+    IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:"
+  for ac_dir in $PATH; do
+    # Account for people who put trailing slashes in PATH elements.
+    case "$ac_dir/" in
+    /|./|.//|/etc/*|/usr/sbin/*|/usr/etc/*|/sbin/*|/usr/afsws/bin/*|/usr/ucb/*) ;;
+    *)
+      # OSF1 and SCO ODT 3.0 have their own names for install.
+      for ac_prog in ginstall installbsd scoinst install; do
+        if test -f $ac_dir/$ac_prog; then
+	  if test $ac_prog = install &&
+            grep dspmsg $ac_dir/$ac_prog >/dev/null 2>&1; then
+	    # AIX install.  It has an incompatible calling convention.
+	    # OSF/1 installbsd also uses dspmsg, but is usable.
+	    :
+	  else
+	    ac_cv_path_install="$ac_dir/$ac_prog -c"
+	    break 2
+	  fi
+	fi
+      done
+      ;;
+    esac
+  done
+  IFS="$ac_save_ifs"
+
+fi
+  if test "${ac_cv_path_install+set}" = set; then
+    INSTALL="$ac_cv_path_install"
+  else
+    # As a last resort, use the slow shell script.  We don't cache a
+    # path for INSTALL within a source directory, because that will
+    # break other packages using the cache if that directory is
+    # removed, or if the path is relative.
+    INSTALL="$ac_install_sh"
+  fi
+fi
+echo "$ac_t""$INSTALL" 1>&6
+
+# Use test -z because SunOS4 sh mishandles braces in ${var-val}.
+# It thinks the first close brace ends the variable substitution.
+test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'
+
+test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
+
+
+# Extract the first word of "gcc", so it can be a program name with args.
+set dummy gcc; ac_word=$2
+echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
+if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:"
+  for ac_dir in $PATH; do
+    test -z "$ac_dir" && ac_dir=.
+    if test -f $ac_dir/$ac_word; then
+      ac_cv_prog_CC="gcc"
+      break
+    fi
+  done
+  IFS="$ac_save_ifs"
+fi
+fi
+CC="$ac_cv_prog_CC"
+if test -n "$CC"; then
+  echo "$ac_t""$CC" 1>&6
+else
+  echo "$ac_t""no" 1>&6
+fi
+
+if test -z "$CC"; then
+  # Extract the first word of "cc", so it can be a program name with args.
+set dummy cc; ac_word=$2
+echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
+if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  if test -n "$CC"; then
+  ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:"
+  ac_prog_rejected=no
+  for ac_dir in $PATH; do
+    test -z "$ac_dir" && ac_dir=.
+    if test -f $ac_dir/$ac_word; then
+      if test "$ac_dir/$ac_word" = "/usr/ucb/cc"; then
+        ac_prog_rejected=yes
+	continue
+      fi
+      ac_cv_prog_CC="cc"
+      break
+    fi
+  done
+  IFS="$ac_save_ifs"
+if test $ac_prog_rejected = yes; then
+  # We found a bogon in the path, so make sure we never use it.
+  set dummy $ac_cv_prog_CC
+  shift
+  if test $# -gt 0; then
+    # We chose a different compiler from the bogus one.
+    # However, it has the same basename, so the bogon will be chosen
+    # first if we set CC to just the basename; use the full file name.
+    shift
+    set dummy "$ac_dir/$ac_word" "$@"
+    shift
+    ac_cv_prog_CC="$@"
+  fi
+fi
+fi
+fi
+CC="$ac_cv_prog_CC"
+if test -n "$CC"; then
+  echo "$ac_t""$CC" 1>&6
+else
+  echo "$ac_t""no" 1>&6
+fi
+
+  test -z "$CC" && { echo "configure: error: no acceptable cc found in \$PATH" 1>&2; exit 1; }
+fi
+
+echo $ac_n "checking whether we are using GNU C""... $ac_c" 1>&6
+if eval "test \"`echo '$''{'ac_cv_prog_gcc'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  cat > conftest.c <<EOF
+#ifdef __GNUC__
+  yes;
+#endif
+EOF
+if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:707: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
+  ac_cv_prog_gcc=yes
+else
+  ac_cv_prog_gcc=no
+fi
+fi
+
+echo "$ac_t""$ac_cv_prog_gcc" 1>&6
+if test $ac_cv_prog_gcc = yes; then
+  GCC=yes
+  if test "${CFLAGS+set}" != set; then
+    echo $ac_n "checking whether ${CC-cc} accepts -g""... $ac_c" 1>&6
+if eval "test \"`echo '$''{'ac_cv_prog_gcc_g'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  echo 'void f(){}' > conftest.c
+if test -z "`${CC-cc} -g -c conftest.c 2>&1`"; then
+  ac_cv_prog_gcc_g=yes
+else
+  ac_cv_prog_gcc_g=no
+fi
+rm -f conftest*
+
+fi
+
+echo "$ac_t""$ac_cv_prog_gcc_g" 1>&6
+    if test $ac_cv_prog_gcc_g = yes; then
+      CFLAGS="-g -O"
+    else
+      CFLAGS="-O"
+    fi
+  fi
+else
+  GCC=
+  test "${CFLAGS+set}" = set || CFLAGS="-g"
+fi
+
+AS=${AS-as}
+
+AR=${AR-ar}
+
+LD=${LD-ld}
+
+# Extract the first word of "ranlib", so it can be a program name with args.
+set dummy ranlib; ac_word=$2
+echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
+if eval "test \"`echo '$''{'ac_cv_prog_RANLIB'+set}'`\" = set"; then
+  echo $ac_n "(cached) $ac_c" 1>&6
+else
+  if test -n "$RANLIB"; then
+  ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test.
+else
+  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS="${IFS}:"
+  for ac_dir in $PATH; do
+    test -z "$ac_dir" && ac_dir=.
+    if test -f $ac_dir/$ac_word; then
+      ac_cv_prog_RANLIB="ranlib"
+      break
+    fi
+  done
+  IFS="$ac_save_ifs"
+  test -z "$ac_cv_prog_RANLIB" && ac_cv_prog_RANLIB=":"
+fi
+fi
+RANLIB="$ac_cv_prog_RANLIB"
+if test -n "$RANLIB"; then
+  echo "$ac_t""$RANLIB" 1>&6
+else
+  echo "$ac_t""no" 1>&6
+fi
+
+
+host_makefile_frag=${srcdir}/../../config/default.mh
+
+host_makefile_frag_path=$host_makefile_frag
+
+
+
+trap '' 1 2 15
+cat > confcache <<\EOF
+# This file is a shell script that caches the results of configure
+# tests run on this system so they can be shared between configure
+# scripts and configure runs.  It is not useful on other systems.
+# If it contains results you don't want to keep, you may remove or edit it.
+#
+# By default, configure uses ./config.cache as the cache file,
+# creating it if it does not exist already.  You can give configure
+# the --cache-file=FILE option to use a different cache file; that is
+# what configure does when it calls configure scripts in
+# subdirectories, so they share the cache.
+# Giving --cache-file=/dev/null disables caching, for debugging configure.
+# config.status only pays attention to the cache file if you give it the
+# --recheck option to rerun configure.
+#
+EOF
+# Ultrix sh set writes to stderr and can't be redirected directly,
+# and sets the high bit in the cache file unless we assign to the vars.
+(set) 2>&1 |
+  sed -n "s/^\([a-zA-Z0-9_]*_cv_[a-zA-Z0-9_]*\)=\(.*\)/\1=\${\1='\2'}/p" \
+  >> confcache
+if cmp -s $cache_file confcache; then
+  :
+else
+  if test -w $cache_file; then
+    echo "updating cache $cache_file"
+    cat confcache > $cache_file
+  else
+    echo "not updating unwritable cache $cache_file"
+  fi
+fi
+rm -f confcache
+
+trap 'rm -fr conftest* confdefs* core core.* *.core $ac_clean_files; exit 1' 1 2 15
+
+test "x$prefix" = xNONE && prefix=$ac_default_prefix
+# Let make expand exec_prefix.
+test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
+
+# Any assignment to VPATH causes Sun make to only execute
+# the first set of double-colon rules, so remove it if not needed.
+# If there is a colon in the path, we need to keep it.
+if test "x$srcdir" = x.; then
+  ac_vpsub='/^[ 	]*VPATH[ 	]*=[^:]*$/d'
+fi
+
+trap 'rm -f $CONFIG_STATUS conftest*; exit 1' 1 2 15
+
+# Transform confdefs.h into DEFS.
+# Protect against shell expansion while executing Makefile rules.
+# Protect against Makefile macro expansion.
+cat > conftest.defs <<\EOF
+s%#define \([A-Za-z_][A-Za-z0-9_]*\) *\(.*\)%-D\1=\2%g
+s%[ 	`~#$^&*(){}\\|;'"<>?]%\\&%g
+s%\[%\\&%g
+s%\]%\\&%g
+s%\$%$$%g
+EOF
+DEFS=`sed -f conftest.defs confdefs.h | tr '\012' ' '`
+rm -f conftest.defs
+
+
+# Without the "./", some shells look in PATH for config.status.
+: ${CONFIG_STATUS=./config.status}
+
+echo creating $CONFIG_STATUS
+rm -f $CONFIG_STATUS
+cat > $CONFIG_STATUS <<EOF
+#! /bin/sh
+# Generated automatically by configure.
+# Run this file to recreate the current configuration.
+# This directory was configured as follows,
+# on host `(hostname || uname -n) 2>/dev/null | sed 1q`:
+#
+# $0 $ac_configure_args
+#
+# Compiler output produced by configure, useful for debugging
+# configure, is in ./config.log if it exists.
+
+ac_cs_usage="Usage: $CONFIG_STATUS [--recheck] [--version] [--help]"
+for ac_option
+do
+  case "\$ac_option" in
+  -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r)
+    echo "running \${CONFIG_SHELL-/bin/sh} $0 $ac_configure_args --no-create --no-recursion"
+    exec \${CONFIG_SHELL-/bin/sh} $0 $ac_configure_args --no-create --no-recursion ;;
+  -version | --version | --versio | --versi | --vers | --ver | --ve | --v)
+    echo "$CONFIG_STATUS generated by autoconf version 2.10"
+    exit 0 ;;
+  -help | --help | --hel | --he | --h)
+    echo "\$ac_cs_usage"; exit 0 ;;
+  *) echo "\$ac_cs_usage"; exit 1 ;;
+  esac
+done
+
+ac_given_srcdir=$srcdir
+ac_given_INSTALL="$INSTALL"
+
+trap 'rm -fr `echo "Makefile" | sed "s/:[^ ]*//g"` conftest*; exit 1' 1 2 15
+EOF
+cat >> $CONFIG_STATUS <<EOF
+
+# Protect against being on the right side of a sed subst in config.status.
+sed 's/%@/@@/; s/@%/@@/; s/%g\$/@g/; /@g\$/s/[\\\\&%]/\\\\&/g;
+ s/@@/%@/; s/@@/@%/; s/@g\$/%g/' > conftest.subs <<\\CEOF
+$ac_vpsub
+$extrasub
+s%@CFLAGS@%$CFLAGS%g
+s%@CPPFLAGS@%$CPPFLAGS%g
+s%@CXXFLAGS@%$CXXFLAGS%g
+s%@DEFS@%$DEFS%g
+s%@LDFLAGS@%$LDFLAGS%g
+s%@LIBS@%$LIBS%g
+s%@exec_prefix@%$exec_prefix%g
+s%@prefix@%$prefix%g
+s%@program_transform_name@%$program_transform_name%g
+s%@bindir@%$bindir%g
+s%@sbindir@%$sbindir%g
+s%@libexecdir@%$libexecdir%g
+s%@datadir@%$datadir%g
+s%@sysconfdir@%$sysconfdir%g
+s%@sharedstatedir@%$sharedstatedir%g
+s%@localstatedir@%$localstatedir%g
+s%@libdir@%$libdir%g
+s%@includedir@%$includedir%g
+s%@oldincludedir@%$oldincludedir%g
+s%@infodir@%$infodir%g
+s%@mandir@%$mandir%g
+s%@INSTALL_PROGRAM@%$INSTALL_PROGRAM%g
+s%@INSTALL_DATA@%$INSTALL_DATA%g
+s%@CC@%$CC%g
+s%@AS@%$AS%g
+s%@AR@%$AR%g
+s%@LD@%$LD%g
+s%@RANLIB@%$RANLIB%g
+s%@host_makefile_frag_path@%$host_makefile_frag_path%g
+/@host_makefile_frag@/r $host_makefile_frag
+s%@host_makefile_frag@%%g
+
+CEOF
+EOF
+cat >> $CONFIG_STATUS <<EOF
+
+CONFIG_FILES=\${CONFIG_FILES-"Makefile"}
+EOF
+cat >> $CONFIG_STATUS <<\EOF
+for ac_file in .. $CONFIG_FILES; do if test "x$ac_file" != x..; then
+  # Support "outfile[:infile]", defaulting infile="outfile.in".
+  case "$ac_file" in
+  *:*) ac_file_in=`echo "$ac_file"|sed 's%.*:%%'`
+       ac_file=`echo "$ac_file"|sed 's%:.*%%'` ;;
+  *) ac_file_in="${ac_file}.in" ;;
+  esac
+
+  # Adjust relative srcdir, etc. for subdirectories.
+
+  # Remove last slash and all that follows it.  Not all systems have dirname.
+  ac_dir=`echo $ac_file|sed 's%/[^/][^/]*$%%'`
+  if test "$ac_dir" != "$ac_file" && test "$ac_dir" != .; then
+    # The file is in a subdirectory.
+    test ! -d "$ac_dir" && mkdir "$ac_dir"
+    ac_dir_suffix="/`echo $ac_dir|sed 's%^\./%%'`"
+    # A "../" for each directory in $ac_dir_suffix.
+    ac_dots=`echo $ac_dir_suffix|sed 's%/[^/]*%../%g'`
+  else
+    ac_dir_suffix= ac_dots=
+  fi
+
+  case "$ac_given_srcdir" in
+  .)  srcdir=.
+      if test -z "$ac_dots"; then top_srcdir=.
+      else top_srcdir=`echo $ac_dots|sed 's%/$%%'`; fi ;;
+  /*) srcdir="$ac_given_srcdir$ac_dir_suffix"; top_srcdir="$ac_given_srcdir" ;;
+  *) # Relative path.
+    srcdir="$ac_dots$ac_given_srcdir$ac_dir_suffix"
+    top_srcdir="$ac_dots$ac_given_srcdir" ;;
+  esac
+
+  case "$ac_given_INSTALL" in
+  [/$]*) INSTALL="$ac_given_INSTALL" ;;
+  *) INSTALL="$ac_dots$ac_given_INSTALL" ;;
+  esac
+  echo creating "$ac_file"
+  rm -f "$ac_file"
+  configure_input="Generated automatically from `echo $ac_file_in|sed 's%.*/%%'` by configure."
+  case "$ac_file" in
+  *Makefile*) ac_comsub="1i\\
+# $configure_input" ;;
+  *) ac_comsub= ;;
+  esac
+  sed -e "$ac_comsub
+s%@configure_input@%$configure_input%g
+s%@srcdir@%$srcdir%g
+s%@top_srcdir@%$top_srcdir%g
+s%@INSTALL@%$INSTALL%g
+" -f conftest.subs $ac_given_srcdir/$ac_file_in > $ac_file
+fi; done
+rm -f conftest.subs
+
+
+
+exit 0
+EOF
+chmod +x $CONFIG_STATUS
+rm -fr confdefs* $ac_clean_files
+test "$no_create" = yes || ${CONFIG_SHELL-/bin/sh} $CONFIG_STATUS || exit 1
+
diff --git a/libgloss/sparc/libsys/configure.in b/libgloss/sparc/libsys/configure.in
new file mode 100644
index 0000000..cf3f496
--- /dev/null
+++ b/libgloss/sparc/libsys/configure.in
@@ -0,0 +1,50 @@
+# Configure.in for libgloss/sparc/libsys
+# Copyright (c) 1996 Cygnus Support
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms are permitted
+# provided that the above copyright notice and this paragraph are
+# duplicated in all such forms and that any documentation,
+# advertising materials, and other materials related to such
+# distribution and use acknowledge that the software was developed
+# at Cygnus Support, Inc.  Cygnus Support, Inc. may not be used to
+# endorse or promote products derived from this software without
+# specific prior written permission.
+# THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+
+dnl Process this file with autoconf to produce a configure script.
+AC_PREREQ(2.5)dnl
+AC_INIT(libsys-crt0.S)
+
+if test "$srcdir" = "." ; then
+  mdir=`echo "${with_multisubdir}/" \
+    | sed -e 's,\([[^/]][[^/]]*\),..,g' -e 's,^/$,,'`
+  AC_CONFIG_AUX_DIR(${mdir}../../../..)
+else
+  AC_CONFIG_AUX_DIR(${srcdir}/../../..)
+fi
+
+AC_PROG_INSTALL
+
+AC_PROG_CC
+AS=${AS-as}
+AC_SUBST(AS)
+AR=${AR-ar}
+AC_SUBST(AR)
+LD=${LD-ld}
+AC_SUBST(LD)
+AC_PROG_RANLIB
+
+host_makefile_frag=${srcdir}/../../config/default.mh
+
+dnl We have to assign the same value to other variables because autoconf
+dnl doesn't provide a mechanism to substitute a replacement keyword with
+dnl arbitrary data or pathnames.
+dnl
+host_makefile_frag_path=$host_makefile_frag
+AC_SUBST(host_makefile_frag_path)
+AC_SUBST_FILE(host_makefile_frag)
+
+AC_OUTPUT(Makefile)
diff --git a/libgloss/sparc/libsys/isatty.c b/libgloss/sparc/libsys/isatty.c
new file mode 100644
index 0000000..3c64647
--- /dev/null
+++ b/libgloss/sparc/libsys/isatty.c
@@ -0,0 +1,17 @@
+/* isatty.c */
+
+/* Dumb implementation so programs will at least run.  */
+
+#include <sys/stat.h>
+
+int
+isatty (int fd)
+{
+  struct stat buf;
+
+  if (fstat (fd, &buf) < 0)
+    return 0;
+  if (S_ISCHR (buf.st_mode))
+    return 1;
+  return 0;
+}
diff --git a/libgloss/sparc/libsys/libsys-crt0.S b/libgloss/sparc/libsys/libsys-crt0.S
new file mode 100644
index 0000000..ef1b29d
--- /dev/null
+++ b/libgloss/sparc/libsys/libsys-crt0.S
@@ -0,0 +1,127 @@
+! C run time start off
+
+! This file supports:
+!
+! - both 32bit pointer and 64bit pointer environments (at compile time)
+! - an imposed stack bias (of 2047) (at run time)
+! - medium/low and medium/anywhere code models (at run time)
+
+! Initial stack setup:
+!
+!    bottom of stack (higher memory address)
+! 	...
+!	text of environment strings
+!	text of argument strings
+!	envp[envc] = 0 (4/8 bytes)
+!	...
+!	env[0] (4/8 bytes)
+!	argv[argc] = 0 (4/8 bytes)
+!	...
+!	argv[0] (4/8 bytes)
+!	argc (4/8 bytes)
+!	register save area (64 bits by 16 registers = 128 bytes)
+!	top of stack (%sp)
+
+! Stack Bias:
+!
+! It is the responsibility of the o/s to set this up.
+! We handle both a 0 and 2047 value for the stack bias.
+
+! Medium/Anywhere code model support:
+!
+! In this model %g4 points to the start of the data segment.
+! The text segment can go anywhere, but %g4 points to the *data* segment.
+! It is up to the compiler/linker to get this right.
+!
+! Since this model is statically linked the start of the data segment
+! is known at link time.  Eg:
+!
+!	sethi	%hh(data_start), %g1
+!	sethi	%lm(data_start), %g4
+!	or	%g1, %hm(data_start), %g1
+!	or	%g4, %lo(data_start), %g4
+!	sllx	%g1, 32, %g1
+!	or	%g4, %g1, %g4
+!
+! FIXME: For now we just assume 0.
+
+! FIXME: if %g1 contains a non-zero value, atexit() should be invoked
+! with this value.
+
+#include "syscallasm.h"
+
+#ifndef TARGET_PTR_SIZE
+#define TARGET_PTR_SIZE 32
+#endif
+
+	TEXT_SECTION
+	ALIGN (4)
+	GLOBAL (ASM_PRIVATE_SYMBOL (start))
+ASM_PRIVATE_SYMBOL (start):
+	clr	%fp
+
+! We use %g4 even if the code model is Medium/Low (simplifies the code).
+
+	clr	%g4			! Medium/Anywhere base reg
+
+! If there is a stack bias in effect, account for it in %g5.  Then always
+! add %g5 to stack references below.  This way the code can be used with
+! or without an imposed bias.
+
+	andcc	%sp, 1, %g5
+	bnz,a	.LHaveBias
+	mov	2047, %g5
+.LHaveBias:
+	add	%sp, %g5, %sp
+
+#if TARGET_PTR_SIZE == 32
+	! FIXME: We apparently assume here that there is no reserved word.
+	! This is probably correct, but try to verify it.
+	ld	[%sp + 0x80], %o0	! argc
+	add	%sp, 0x84, %o1		! argv
+	add	%o0, 1, %o2
+	sll	%o2, 2, %o2
+#else /* TARGET_PTR_SIZE == 64 */
+	ld	[%sp + 0x8c], %o0	! argc.lo
+	add	%sp, 0x90, %o1		! argv
+	add	%o0, 1, %o2
+	sll	%o2, 3, %o2
+#endif
+	add	%o1, %o2, %o2		! envp
+	sethi	%hi (ASM_SYMBOL (environ)), %o3
+	or	%o3, %lo (ASM_SYMBOL (environ)), %o3
+#if TARGET_PTR_SIZE == 32
+	st	%o2, [%o3 + %g4]
+#else /* TARGET_PTR_SIZE == 64 */
+	stx	%o2, [%o3 + %g4]
+#endif
+
+! Restore any stack bias before we call main() ...
+
+	sub	%sp, %g5, %sp
+
+	GLOBAL (ASM_SYMBOL (main))
+	call	ASM_SYMBOL (main)
+
+! FIXME: Not sure if this is needed anymore.
+#if TARGET_PTR_SIZE == 32
+	sub	%sp, 0x20, %sp		! room to push args
+#else /* TARGET_PTR_SIZE == 64 */
+	sub	%sp, 0x30, %sp		! room to push args
+#endif
+
+	GLOBAL (ASM_SYMBOL (exit))
+	call	ASM_SYMBOL (exit)
+	nop
+
+	GLOBAL (ASM_SYMBOL (_exit))
+	call	ASM_SYMBOL (_exit)
+	nop
+
+	set	SYS_exit, %g1
+	ta	SYSCALL_TRAP		! in case user redefines __exit
+
+! If all the above methods fail to terminate the program, try an illegal insn.
+! If that does not work, the o/s is hosed more than we are.
+
+	WORD (0)
diff --git a/libgloss/sparc/libsys/sbrk.S b/libgloss/sparc/libsys/sbrk.S
new file mode 100644
index 0000000..b862621
--- /dev/null
+++ b/libgloss/sparc/libsys/sbrk.S
@@ -0,0 +1,66 @@
+! sbrk() system call
+
+#include "syscallasm.h"
+
+	TEXT_SECTION
+	ALIGN (4)
+#ifdef REENT
+	GLOBAL (ASM_SYMBOL (_sbrk_r))
+ASM_SYMBOL (_sbrk_r):
+	mov	%o0,%o5
+	mov	%o1,%o0
+#else
+	GLOBAL (ASM_SYMBOL (sbrk))
+ASM_SYMBOL (sbrk):
+#endif
+	add	%o0,7,%o0
+	andn	%o0,7,%o0
+	sethi	%hi (ASM_PRIVATE_SYMBOL (curbrk)),%o2
+#ifdef __sparc_v9__
+	lduw	[%o2+%lo (ASM_PRIVATE_SYMBOL (curbrk))],%o3
+#else
+	ld	[%o2+%lo (ASM_PRIVATE_SYMBOL (curbrk))],%o3
+#endif
+	add	%o3,7,%o3
+	andn	%o3,7,%o3
+	add	%o3,%o0,%o0
+	mov	%o0,%o4
+	mov	SYS_brk,%g1
+	ta	SYSCALL_TRAP
+	bcs	err
+	nop
+	st	%o4,[%o2+%lo (ASM_PRIVATE_SYMBOL (curbrk))]
+	jmpl	%o7+8,%g0
+	mov	%o3,%o0
+
+#ifdef REENT
+	GLOBAL (ASM_SYMBOL (_brk_r))
+ASM_SYMBOL (_brk_r):
+	mov	%o0,%o5
+	mov	%o1,%o0
+#else
+	GLOBAL (ASM_SYMBOL (brk))
+ASM_SYMBOL (brk):
+#endif
+	add	%o0,7,%o0
+	andn	%o0,7,%o0
+	mov	%o0,%o2
+	mov	SYS_brk,%g1
+	ta	SYSCALL_TRAP
+	bcs	err
+	nop
+	sethi	%hi (ASM_PRIVATE_SYMBOL (curbrk)),%o3
+	st	%o2,[%o3+%lo (ASM_PRIVATE_SYMBOL (curbrk))]
+	retl
+	mov	%g0,%o0
+
+err:
+#ifdef REENT
+	sethi	%hi (ASM_PRIVATE_SYMBOL (cerror_r)),%g1
+	or	%g1,%lo (ASM_PRIVATE_SYMBOL (cerror_r)),%g1
+#else
+	sethi	%hi (ASM_PRIVATE_SYMBOL (cerror)),%g1
+	or	%g1,%lo (ASM_PRIVATE_SYMBOL (cerror)),%g1
+#endif
+	jmpl	%g1,%g0
+	mov	%o5,%o1
diff --git a/libgloss/sparc/libsys/syscall.h b/libgloss/sparc/libsys/syscall.h
new file mode 100644
index 0000000..457fe3a
--- /dev/null
+++ b/libgloss/sparc/libsys/syscall.h
@@ -0,0 +1,39 @@
+#ifndef _SYSCALL_H_
+#define _SYSCALL_H_
+
+/*
+ * This file defines the minimal set of system calls needed
+ * by newlib for both sunos4 and solaris2.
+ *
+ * WARNING: This file can be included by assembler files.
+ */
+
+/* Process control.  */
+#define	SYS_exit	1
+#define	SYS_getpid	20
+#define	SYS_kill	37
+
+/* File stuff.  */
+#define	SYS_read	3
+#define	SYS_write	4
+#define	SYS_open	5
+#define	SYS_close	6
+#define	SYS_lseek	19
+
+/* Memory stuff.  */
+#define	SYS_brk		17
+
+/* Directory stuff.  */
+#define	SYS_unlink	10
+#define	SYS_chdir	12
+#ifdef SVR4
+#define SYS_stat	18
+#define SYS_fstat	28
+#define	SYS_lstat	88
+#else
+#define	SYS_stat	38
+#define	SYS_fstat	62
+#define	SYS_lstat	40
+#endif
+
+#endif /* _SYSCALL_H_ */
diff --git a/libgloss/sparc/libsys/syscallasm.h b/libgloss/sparc/libsys/syscallasm.h
new file mode 100644
index 0000000..55f25cd
--- /dev/null
+++ b/libgloss/sparc/libsys/syscallasm.h
@@ -0,0 +1,93 @@
+#ifndef _SYSCALLASM_H_
+#define _SYSCALLASM_H_
+
+/*
+ * This file defines the system calls for SPARC for the assembler.
+ * Anything C-ish is not allowed in this file.
+ * C files should include syscall.h.
+ */
+
+#include "syscall.h"
+
+/* Some macros for writing assember syscall stubs.  */
+
+#ifdef SVR4
+#define TEXT_SECTION	.section ".text"
+#define DATA_SECTION	.section ".data"
+#define ALIGN(x)	.align x
+#define GLOBAL(sym)	.global sym
+#define WORD(x)		.long x
+#define ASM_SYMBOL(name) name
+#define ASM_PRIVATE_SYMBOL(name) _##name
+#define SYSCALL_TRAP	8
+#else
+#define TEXT_SECTION	.text
+#define DATA_SECTION	.data
+#define ALIGN(x)	.align x
+#define GLOBAL(sym)	.global sym
+#define WORD(x)		.word x
+#define ASM_SYMBOL(name) _##name
+#define ASM_PRIVATE_SYMBOL(name) name
+#define SYSCALL_TRAP	0
+#endif
+
+#define defsyscall(name, n) \
+	TEXT_SECTION ;			\
+	ALIGN (4) ;			\
+	GLOBAL (ASM_SYMBOL (name)) ;	\
+ASM_SYMBOL (name):			\
+	mov	n,%g1 ;			\
+	ta	SYSCALL_TRAP ;		\
+	bcc	noerr ;			\
+	sethi	%hi (ASM_PRIVATE_SYMBOL (cerror)),%g1 ;		\
+	or	%g1,%lo (ASM_PRIVATE_SYMBOL (cerror)),%g1 ;	\
+	jmpl	%g1+%g0,%g0 ;		\
+	nop ;				\
+noerr:					\
+	jmpl	%o7+8,%g0 ;		\
+	nop
+
+/* Support for reentrant syscalls.  The "struct _reent *" arg is always the
+   the first one.  After that we allow up to four additional args.  We could
+   allow more, but that's all we need for now.
+
+   It may seem inefficient to have the reent arg be the first one as it means
+   copying all the other args into place (as opposed to making the reent arg
+   the last one in which case there wouldn't be any copying).  I chose a clean
+   design over an extra four instructions in a system call.  All other
+   reentrant functions use the first arg this way.
+   ??? Of course this scheme breaks down if we need to support 6 or more args.
+
+   And of course the system calls aren't *really* reentrant.  The intent
+   is to exercise the reentrancy framework rather than provide/claim
+   real reentrancy for this port.
+*/
+
+#define defsyscall_r(name, n) \
+	TEXT_SECTION ;			\
+	ALIGN (4) ;			\
+	GLOBAL (ASM_SYMBOL (name)) ;	\
+ASM_SYMBOL (name):			\
+	mov	n,%g1 ;			\
+	mov	%o0,%o5 ;		\
+	mov	%o1,%o0 ;		\
+	mov	%o2,%o1 ;		\
+	mov	%o3,%o2 ;		\
+	mov	%o4,%o3 ;		\
+	ta	SYSCALL_TRAP ;		\
+	bcc	noerr ;			\
+	sethi	%hi (ASM_PRIVATE_SYMBOL (cerror_r)),%g1 ;	\
+	or	%g1,%lo (ASM_PRIVATE_SYMBOL (cerror_r)),%g1 ;	\
+	jmpl	%g1+%g0,%g0 ;		\
+	mov	%o5,%o1 ;		\
+noerr:					\
+	jmpl	%o7+8,%g0 ;		\
+	nop
+
+#define seterrno() \
+	sethi	%hi (ASM_PRIVATE_SYMBOL (cerror)),%g1 ;		\
+	or	%g1,%lo (ASM_PRIVATE_SYMBOL (cerror)),%g1 ;	\
+	jmpl	%g1+%g0,%g0 ;		\
+	nop
+
+#endif /* _SYSCALLASM_H_ */
diff --git a/libgloss/sparc/libsys/template.S b/libgloss/sparc/libsys/template.S
new file mode 100644
index 0000000..e1b437b
--- /dev/null
+++ b/libgloss/sparc/libsys/template.S
@@ -0,0 +1,14 @@
+/* system call template */
+
+/* Lots of system calls are trivial functions, so we build their source files
+   from a template.  New syscalls can be added simply by editing the
+   Makefile!
+
+   Usage: Compile this file with "func" set to the name of the syscall.  */
+
+#include "syscallasm.h"
+
+#define concat(a,b) a##b
+#define makesys(a)  concat (SYS_, a)
+
+	defsyscall (func, makesys(func))
diff --git a/libgloss/sparc/libsys/template_r.S b/libgloss/sparc/libsys/template_r.S
new file mode 100644
index 0000000..3a9b5f8
--- /dev/null
+++ b/libgloss/sparc/libsys/template_r.S
@@ -0,0 +1,26 @@
+/* reentrant system call template */
+
+/* Lots of system calls are trivial functions, so we build their source files
+   from a template.  New syscalls can be added simply by editing the
+   Makefile!
+
+   The system calls aren't necessarily reentrant.  If we were being used in
+   an embedded system they could be.  Reentrant syscalls are also used,
+   however, to provide ANSI C namespace clean access to the host o/s.
+
+   Usage: Compile this file with "func" set to the name of the syscall.  */
+
+#include "syscallasm.h"
+
+#define concat(a,b)	a##b
+#define concat3(a,b,c)	a##b##c
+#define makesys(a)	concat (SYS_, a)
+#define make_r_fn(a)	concat3 (_, a, _r)
+
+/* The leading _'s get turned into #'s by the Makefile.  */
+
+_ifdef REENT
+	defsyscall_r (make_r_fn (func), makesys (func))
+_else
+	defsyscall (func, makesys (func))
+_endif
diff --git a/libgloss/sparc/salib-701.c b/libgloss/sparc/salib-701.c
new file mode 100644
index 0000000..404ad6c
--- /dev/null
+++ b/libgloss/sparc/salib-701.c
@@ -0,0 +1,288 @@
+/* Stand-alone library for Sparclet 701 board
+ *
+ * Copyright (c) 1996 Cygnus Support
+ *
+ * The authors hereby grant permission to use, copy, modify, distribute,
+ * and license this software and its documentation for any purpose, provided
+ * that existing copyright notices are retained in all copies and that this
+ * notice is included verbatim in any distributions. No written agreement,
+ * license, or royalty fee is required for any of the authorized uses.
+ * Modifications to this software may be copyrighted by their authors
+ * and need not follow the licensing terms described here, provided that
+ * the new terms are clearly indicated on the first page of each file where
+ * they apply.
+ */
+
+#define RAM_BASE		((unsigned char *)0x12000000) /* Start of cacheable dram */
+#define DCACHE_LINES		128	   /* Number of lines in data cache */
+#define DCACHE_LINE_SIZE	16	   /* Bytes per data cache line */
+#define DCACHE_BANKS		4	   /* 4-way associative */
+#define CACHE_INST_TAG_ADDR	((unsigned char *)0xc0020000) /* I-Cache tag base address */
+#define ALL_BANKS		0x0000f000 /* Selects all 4 cache banks */
+#define ICACHE_LINES		128	   /* Number of lines in inst cache */
+#define ICACHE_LINE_SIZE	32	   /* Bytes per inst cache line */
+
+/* I/O Base addresses */
+#define CACHE_INST_BASE_ADD     0xc0000000
+#define CACHE_DATA_BASE_ADD     0xc8000000
+#define	_InstrCacheCtlBase	0xc0000000
+#define	_DataCacheCtlBase	0xc8000000
+
+#define USART_BASE_ADD          0x92000000
+#define	USART_BASE_ADRS(n)	(USART_BASE_ADD + ((n)<<21))	/*0..3*/
+
+/* Serial receiver definitions */
+#define	USART_RX_CHAR(n) (*(unsigned char *) (USART_BASE_ADRS(n)  +(2<<19)))
+#define	USART_RX_CTRL_BASE_ADRS(n)	 (USART_BASE_ADRS(n)+(3<<19))
+#define URSTR(n) 	(*(unsigned int *) (USART_RX_CTRL_BASE_ADRS(n)+(2<<15)))
+#define	URSTR_CHAR_NUM			0x1f00	/* Bits 8-12 */
+
+/* Serial receiver definitions */
+#define	USART_TX_CHAR(n)	(*(unsigned char *) (USART_BASE_ADRS(n)+3))
+#define	USART_TX_CTRL_BASE_ADRS(n)	 (USART_BASE_ADRS(n)+(1<<19))
+#define UTSTR(n) 	(*(unsigned int *) (USART_TX_CTRL_BASE_ADRS(n)+(2<<15)))
+#define	UTSTR_CHAR_FREE			0x1f0	/* Bits 4-8 */
+
+/* Cache definitions */
+#define DCCA_NB_LINES       128         /* Nb of lines of the cache */
+/* Bank number, used for Cache Memory and Cache Tag */
+#define	ICCA_B3	   	0x000008000	/* Bit 15 - 1:Bank3 selected       */
+#define	ICCA_B2   	0x000004000	/* Bit 14 - 1:Bank2 selected       */
+#define	ICCA_B1   	0x000002000	/* Bit 13 - 1:Bank1 selected       */
+#define	ICCA_B0   	0x000001000	/* Bit 12 - 1:Bank0 selected       */
+/* Register address, show which register is to be checked/updated */
+#define	ICCACR		0x00000000	/* Bits 17 - 16 - Control register */
+#define	ICCAMEM     	0x00010000	/* Bits 17 - 16 - Cache memory     */
+#define	DCCACR          0x00000000	/* Bits 16 - 15 - Control register */
+/* Instruction Cache Controller Register */
+#define	ICCR_DISABLE  0xfffffffe	/* Reset enable bit                 */
+
+/* Serial I/O routines */
+
+#define STUB_PORT 1		/* 0 = serial port A;  1 = serial port B */
+
+static volatile unsigned char *rx_fifo = &USART_RX_CHAR(STUB_PORT);
+static volatile unsigned int *rx_status = &URSTR(STUB_PORT);
+
+static volatile unsigned char *tx_fifo = &USART_TX_CHAR(STUB_PORT);
+static volatile unsigned int *tx_status = &UTSTR(STUB_PORT);
+
+/* library-free debug reoutines */
+#ifdef XDEBUG
+#define XDBG_MSG(x) pmsg(x)
+#define XDBG_HEX(x) phex(x)
+#else
+#define XDBG_MSG(x) 
+#define XDBG_HEX(x) 
+#endif
+
+static int
+rx_rdy()
+{
+  return (*rx_status & URSTR_CHAR_NUM);
+}
+
+static unsigned char
+rx_char()
+{
+  return *rx_fifo;
+}
+
+void
+tx_char(char c)
+{
+  *tx_fifo = c;
+}
+
+static int
+tx_rdy()
+{
+  return (*tx_status & UTSTR_CHAR_FREE);
+}
+
+int
+getDebugChar()
+{
+  while (!rx_rdy())
+    ;
+  return rx_char();
+}
+
+void
+putDebugChar(int c)
+{
+  while (!tx_rdy())
+    ;
+  tx_char(c);
+}
+
+#ifdef XDEBUG
+/* library-free debug reoutines */
+/* print a string */
+void pmsg(char *p)
+{
+    while (*p)
+    {
+	if (*p == '\n')
+	    putDebugChar('\r');
+	putDebugChar(*p++);
+    }
+}
+
+/* print a hex number */
+void phex(long x)
+{
+    char buf[9];
+    int i;
+
+    buf[8] = '\0';
+    for (i = 7; i >= 0; i--)
+    {
+	char c = x & 0x0f;
+	buf[i] = c < 10 ? c + '0' : c - 10 + 'A';
+	x >>= 4;
+    }
+    pmsg(buf);
+}
+#endif
+
+/* rdtbr() - read the trap base register */
+
+unsigned long rdtbr();
+
+asm("
+	.text
+	.align 4
+	.globl _rdtbr
+_rdtbr:
+	retl
+	mov	%tbr, %o0
+");
+
+/* wrtbr() - write the trap base register */
+
+void wrtbr(unsigned long);
+
+asm("
+	.text
+	.align 4
+	.globl _wrtbr
+_wrtbr:
+	retl
+	mov	%o0, %tbr
+");
+
+/* Each entry in the trap vector occupies four words. */
+
+struct trap_entry
+{
+  unsigned sethi_filler:10;
+  unsigned sethi_imm22:22;
+  unsigned jmpl_filler:19;
+  unsigned jmpl_simm13:13;
+  unsigned long filler[2];
+};
+
+extern struct trap_entry fltr_proto;
+asm ("
+	.data
+	.globl _fltr_proto
+	.align 4
+_fltr_proto:			! First level trap routine prototype
+	sethi 0, %l0
+	jmpl 0+%l0, %g0
+	nop
+	nop
+
+	.text
+	.align 4
+");
+
+/* copy_vectors - Copy the trap vectors from ROM to RAM, set the TBR register
+   to point to the RAM vectors, and return the address of the RAM vectors.  */
+
+extern struct trap_entry __trap_vectors[256];	/* defined in matra.ld */
+
+struct trap_entry *copy_vectors()
+{
+  int i;
+  struct trap_entry *old = (struct trap_entry *) (rdtbr() & ~0xfff);
+
+  XDBG_MSG("Copying vectors...\n");
+  for (i = 0; i < 256; i++)
+    __trap_vectors[i] = old[i];
+  wrtbr ((unsigned long)__trap_vectors);
+  XDBG_MSG("Done\n");
+  return __trap_vectors;
+}
+
+
+void
+disable_cache()
+{
+  unsigned long *ptr;
+  static unsigned long CACHE_shadow_iccr = 0;   /* Because CR cannot be read */
+  static unsigned long CACHE_shadow_dccr = 0;   /* Because CR cannot be read */
+
+  XDBG_MSG("Disabling cache...\n");
+  ptr = (unsigned long*)(CACHE_INST_BASE_ADD | ICCACR);
+  CACHE_shadow_iccr = CACHE_shadow_iccr & ICCR_DISABLE;
+  *ptr = CACHE_shadow_iccr;
+
+  ptr = (unsigned long*)(CACHE_DATA_BASE_ADD | DCCACR);
+  CACHE_shadow_dccr = CACHE_shadow_dccr & ICCR_DISABLE;
+  *ptr = CACHE_shadow_dccr;
+  XDBG_MSG("Done\n");
+}
+
+/* Flush the instruction cache.  We need to do this for the debugger stub so
+   that breakpoints, et. al. become visible to the instruction stream after
+   storing them in memory.  FIXME!!
+ */
+
+void
+flush_i_cache ()
+{
+  volatile unsigned char *addr;
+
+  /* First, force all dirty items in the data cache to be moved out to real
+     memory.  This is done by making read refs to alternate addresses that will
+     fill up all four banks for each line.  Note that we actually have to
+     reference 8 locs per line just in case the region of memory we use is one
+     of the areas that needs to be flushed.  */
+
+  for (addr = RAM_BASE;
+       addr < RAM_BASE + (DCACHE_LINES * DCACHE_LINE_SIZE * DCACHE_BANKS) * 2;
+       addr += DCACHE_LINE_SIZE)
+    *addr;			/* Read the loc */
+
+  /* Now, flush the instruction cache.  */
+
+  for (addr = CACHE_INST_TAG_ADDR + ALL_BANKS;
+       addr <= CACHE_INST_TAG_ADDR + ALL_BANKS + ICACHE_LINES * ICACHE_LINE_SIZE;
+       addr += ICACHE_LINE_SIZE)
+    *(unsigned long *)addr = 0; /* Clr tag entry for all banks on this line */
+}
+
+/* Setup trap TT to go to ROUTINE. */
+
+void
+exceptionHandler (int tt, unsigned long routine)
+{
+  static struct trap_entry *tb;		/* Trap vector base address */
+
+  if (!tb)
+    {
+      tb = copy_vectors();		/* Copy trap vectors to RAM */
+      disable_cache();			/* Disable cache  FIXME!! */
+    }
+
+  XDBG_MSG("Setting exception handler for trap...\n");
+
+  tb[tt] = fltr_proto;
+
+  tb[tt].sethi_imm22 = routine >> 10;
+  tb[tt].jmpl_simm13 = routine & 0x3ff;
+
+  XDBG_MSG("Done\n");
+}
diff --git a/libgloss/sparc/salib.c b/libgloss/sparc/salib.c
new file mode 100644
index 0000000..8076a6b
--- /dev/null
+++ b/libgloss/sparc/salib.c
@@ -0,0 +1,388 @@
+/* Stand-alone library for SPARClite
+ *
+ * Copyright (c) 1995 Cygnus Support
+ *
+ * The authors hereby grant permission to use, copy, modify, distribute,
+ * and license this software and its documentation for any purpose, provided
+ * that existing copyright notices are retained in all copies and that this
+ * notice is included verbatim in any distributions. No written agreement,
+ * license, or royalty fee is required for any of the authorized uses.
+ * Modifications to this software may be copyrighted by their authors
+ * and need not follow the licensing terms described here, provided that
+ * the new terms are clearly indicated on the first page of each file where
+ * they apply.
+ */
+
+#include "sparclite.h"
+#include "asm.h"
+
+/* LED blinking pattern can be changed by modifying __led_algorithm. */
+
+enum ledtype
+{
+  led_marching,		/* marching pattern, only one led on at a time */
+  led_random,		/* pseudo-random pattern */
+  led_blinking,		/* all leds blink on and off */
+  led_none		/* leds off all the time */
+};
+
+enum ledtype __led_algorithm = led_marching;
+
+
+/* Pointer to hook for outbyte, set by stub's exception handler.  */
+void (*__outbyte_hook) (int c);
+
+#ifdef SL931
+#define SDTR_BASE 0x200
+#define SDTR_ASI 1
+#define SDTR_SHIFT 0
+#else
+#define SDTR_BASE 0x10000000
+#define SDTR_ASI 4
+#define SDTR_SHIFT 16
+#endif
+
+#define get_uart_status(PORT) \
+  (read_asi (SDTR_ASI, SDTR_BASE + 0x24 + (PORT) * 0x10) >> SDTR_SHIFT)
+
+#define xmt_char(PORT, C) \
+  write_asi (SDTR_ASI, SDTR_BASE + 0x20 + (PORT) * 0x10, (C) << SDTR_SHIFT)
+
+#define rcv_char(PORT) \
+  (read_asi (SDTR_ASI, SDTR_BASE + 0x20 + (PORT) * 0x10) >> SDTR_SHIFT)
+
+void putDebugChar();
+
+#if 0
+void
+set_uart (cmd)
+     int cmd;
+{
+  write_asi (SDTR_ASI, SDTR_BASE + 0x24, cmd << SDTR_SHIFT);
+}
+
+void
+set_timer_3 (val)
+     int val;
+{
+  write_asi (SDTR_ASI, SDTR_BASE + 0x78, val << SDTR_SHIFT);
+}
+#endif
+
+
+asm("
+	.text
+	.align 4
+
+! Register window overflow handler.  Come here when save would move us
+! into the invalid window.  This routine runs with traps disabled, and
+! must be careful not to touch the condition codes, as PSR is never
+! restored.
+!
+! We are called with %l0 = wim, %l1 = pc, %l2 = npc
+
+	.globl " STRINGSYM(win_ovf) "
+" STRINGSYM(win_ovf) ":
+	mov	%g1, %l3		! Save g1, we use it to hold the wim
+	srl	%l0, 1, %g1		! Rotate wim right
+	sll	%l0, __WINSIZE-1, %l0
+	or	%l0, %g1, %g1
+
+	save	%g0, %g0, %g0		! Slip into next window
+	mov	%g1, %wim		! Install the new wim
+
+	std	%l0, [%sp + 0 * 4]	! save L & I registers
+	std	%l2, [%sp + 2 * 4]
+	std	%l4, [%sp + 4 * 4]
+	std	%l6, [%sp + 6 * 4]
+
+	std	%i0, [%sp + 8 * 4]
+	std	%i2, [%sp + 10 * 4]
+	std	%i4, [%sp + 12 * 4]
+	std	%i6, [%sp + 14 * 4]
+
+	restore				! Go back to trap window.
+	mov	%l3, %g1		! Restore %g1
+
+	jmpl	%l1,  %g0
+	rett	%l2
+
+! Register window underflow handler.  Come here when restore would move us
+! into the invalid window.  This routine runs with traps disabled, and
+! must be careful not to touch the condition codes, as PSR is never
+! restored.
+!
+! We are called with %l0 = wim, %l1 = pc, %l2 = npc
+
+	.globl " STRINGSYM(win_unf) "
+" STRINGSYM(win_unf) ":
+	sll	%l0, 1, %l3		! Rotate wim left
+	srl	%l0, __WINSIZE-1, %l0
+	or	%l0, %l3, %l0
+
+	mov	%l0, %wim		! Install the new wim
+
+	restore				! User's window
+	restore				! His caller's window
+
+	ldd	[%sp + 0 * 4], %l0	! restore L & I registers
+	ldd	[%sp + 2 * 4], %l2
+	ldd	[%sp + 4 * 4], %l4
+	ldd	[%sp + 6 * 4], %l6
+
+	ldd	[%sp + 8 * 4], %i0
+	ldd	[%sp + 10 * 4], %i2
+	ldd	[%sp + 12 * 4], %i4
+	ldd	[%sp + 14 * 4], %i6
+
+	save	%g0, %g0, %g0		! Back to trap window
+	save	%g0, %g0, %g0
+
+	jmpl	%l1,  %g0
+	rett	%l2
+
+! Read the TBR.
+
+	.globl " STRINGSYM(rdtbr) "
+" STRINGSYM(rdtbr) ":
+	retl
+	mov	%tbr, %o0
+
+");
+
+extern unsigned long rdtbr();
+
+void
+die(val)
+     int val;
+{
+  static unsigned char *leds = (unsigned char *)0x02000003;
+
+  *leds = val;
+
+  while (1) ;
+}
+
+/* Each entry in the trap vector occupies four words. */
+
+struct trap_entry
+{
+  unsigned sethi_filler:10;
+  unsigned sethi_imm22:22;
+  unsigned jmpl_filler:19;
+  unsigned jmpl_simm13:13;
+  unsigned long filler[2];
+};
+
+extern struct trap_entry fltr_proto;
+asm ("
+	.data
+	.globl " STRINGSYM(fltr_proto) "
+	.align 4
+" STRINGSYM(fltr_proto) ":			! First level trap routine prototype
+	sethi 0, %l0
+	jmpl 0+%l0, %g0
+	nop
+	nop
+
+	.text
+	.align 4
+");
+
+/* Setup trap TT to go to ROUTINE.  If TT is between 0 and 255 inclusive, the
+   normal trap vector will be used.  If TT is 256, then it's for the SPARClite
+   DSU, and that always vectors off to 255 unrelocated.
+*/
+
+void
+exceptionHandler (tt, routine)
+     int tt;
+     unsigned long routine;
+{
+  struct trap_entry *tb;	/* Trap vector base address */
+
+  if (tt != 256)
+    tb = (struct trap_entry *) (rdtbr() & ~0xfff);
+  else
+    {
+      tt = 255;
+      tb = (struct trap_entry *) 0;
+    }
+
+  tb[tt] = fltr_proto;
+
+  tb[tt].sethi_imm22 = routine >> 10;
+  tb[tt].jmpl_simm13 = routine & 0x3ff;
+}
+
+void
+update_leds()
+{
+  static unsigned char *leds = (unsigned char *)0x02000003;
+  static enum ledtype prev_algorithm = led_none;
+
+  if (prev_algorithm != __led_algorithm)
+    {
+       *leds = 0xff;	/* turn the LEDs off */
+       prev_algorithm = __led_algorithm;
+    }
+
+  switch (__led_algorithm)
+    {
+    case led_marching:
+      {
+	static unsigned char curled = 1;
+	static unsigned char dir = 0;
+
+	*leds = ~curled;
+
+	if (dir)
+	  curled <<= 1;
+	else
+	  curled >>= 1;
+
+	if (curled == 0)
+	  {
+	    if (dir)
+	      curled = 0x80;
+	    else
+	      curled = 1;
+	    dir = ~dir;
+	  }
+	break;
+      }
+
+    case led_random:
+      {
+	static unsigned int next = 0;
+	*leds = next & 0xff;
+	next = (next * 1103515245 + 12345) & 0x7fff;
+	break;
+      }
+
+    case led_blinking:
+      {
+	static unsigned char next = 0;
+	*leds = next;
+	next = ~next;
+	break;
+      }
+
+    default:
+      break;
+    }
+}
+
+ /* 1/5th of a second? */
+
+#define LEDTIME (20000000 / 500)
+
+unsigned long ledtime = LEDTIME;
+
+int
+inbyte()
+{
+	return (getDebugChar());
+}
+
+int
+getDebugChar()
+{
+  unsigned long countdown = ledtime;
+
+  update_leds();
+
+  while (1)
+    {
+      if ((get_uart_status(0) & 2) != 0) break;
+
+      if (countdown-- == 0)
+	{
+	  countdown = ledtime;
+	  update_leds();
+	}
+    }
+
+  return rcv_char(0);
+}
+
+/* Output one character to the serial port */
+void
+outbyte(c)
+    int c;
+{
+  if (__outbyte_hook)
+    __outbyte_hook (c);
+  else
+    putDebugChar(c);
+}
+
+void
+putDebugChar(c)
+     int c;
+{
+  update_leds();
+
+  while ((get_uart_status(0) & 1) == 0) ;
+
+  xmt_char(0, c);
+}
+
+#if 0
+int
+write(fd, data, length)
+     int fd;
+     unsigned char *data;
+     int length;
+{
+  int olength = length;
+
+  while (length--)
+    putDebugChar(*data++);
+
+  return olength;
+}
+
+int
+read(fd, data, length)
+     int fd;
+     unsigned char *data;
+     int length;
+{
+  int olength = length;
+  int c;
+
+  while (length--)
+    *data++ = getDebugChar();
+
+  return olength;
+}
+#endif
+
+/* Set the baud rate for the serial port, returns 0 for success,
+   -1 otherwise */
+
+#if 0
+int
+set_baud_rate(baudrate)
+     int baudrate;
+{
+  /* Convert baud rate to uart clock divider */
+  switch (baudrate)
+    {
+    case 38400:
+      baudrate = 16;
+      break;
+    case 19200:
+      baudrate = 33;
+      break;
+    case 9600:
+      baudrate = 65;
+      break;
+    default:
+      return -1;
+    }
+
+  set_timer_3(baudrate);	/* Set it */
+}
+#endif
diff --git a/libgloss/sparc/slite.h b/libgloss/sparc/slite.h
new file mode 100644
index 0000000..4762e3f
--- /dev/null
+++ b/libgloss/sparc/slite.h
@@ -0,0 +1,127 @@
+/*
+ * Copyright (c) 1995, 1996 Cygnus Support
+ *
+ * The authors hereby grant permission to use, copy, modify, distribute,
+ * and license this software and its documentation for any purpose, provided
+ * that existing copyright notices are retained in all copies and that this
+ * notice is included verbatim in any distributions. No written agreement,
+ * license, or royalty fee is required for any of the authorized uses.
+ * Modifications to this software may be copyrighted by their authors
+ * and need not follow the licensing terms described here, provided that
+ * the new terms are clearly indicated on the first page of each file where
+ * they apply.
+ */
+
+#define STACK_SIZE 16 * 1024
+#define TRAP_STACK_SIZE 4 * 1024
+#define NUM_REGS 20
+
+#ifdef SL933
+#define NUMBER_OF_REGISTER_WINDOWS 6
+#else
+#define NUMBER_OF_REGISTER_WINDOWS 8
+#endif
+
+#if (NUMBER_OF_REGISTER_WINDOWS == 8)
+#define SPARC_PSR_CWP_MASK               0x07   /* bits  0 -  4 */
+#elif (NUMBER_OF_REGISTER_WINDOWS == 16)
+#define SPARC_PSR_CWP_MASK               0x0F   /* bits  0 -  4 */
+#elif (NUMBER_OF_REGISTER_WINDOWS == 32)
+#define SPARC_PSR_CWP_MASK               0x1F   /* bits  0 -  4 */
+#else
+#error "Unsupported number of register windows for this cpu"
+#endif
+
+/* The traptable has to be the first code in a boot PROM. */
+
+/*
+ *  Entry for traps which jump to a programmer-specified trap handler.
+ */
+ 
+#define TRAP(_handler)  \
+  sethi %hi(_handler), %l3 ; \
+  jmpl  %l3+%lo(_handler), %g0 ; \
+  mov   %wim, %l0 ; \
+  nop
+
+/* Unexcpected trap will halt the processor by forcing it to error state */
+#if 1
+#define BAD_TRAP ta 0; nop; nop; nop;
+#else
+#define BAD_TRAP \
+  mov   %psr, l0 ; \
+  mov   0x0, %o0 ; \
+  sethi %hi(SYM(bad_trap)), l4 ; \
+  jmp   l4+%lo(SYM(bad_trap));
+#endif
+
+/* Software trap. Treat as BAD_TRAP for the time being... */
+#if 1
+#define SOFT_TRAP BAD_TRAP
+#else
+#define SOFT_TRAP \
+  mov   $psr, $l0 ; \
+  mov   0x0, $o0 ; \
+  sethi $hi(SYM(soft_trap)), l4 ; \
+  jmp   l4+$lo(SYM(soft_trap));
+#endif
+
+#define PSR_INIT   0x10c0       /* Disable traps, set s and ps */
+#define TBR_INIT   0
+#define WIM_INIT   2
+#define SP_INIT    0x023ffff0
+
+/* Macros for reading and writing to arbitrary address spaces.  Note that ASI
+   must be a constant (sorry, but the SPARC can only specify ASIs as part of an
+   instruction.  */
+
+#define read_asi(ASI, LOC)                                              \
+  ({                                                                    \
+    unsigned int val;                                                   \
+    __asm__ volatile ("lda [%r1]%2,%0" : "=r" (val) : "rJ" (LOC), "I" (ASI)); \
+    val;                                                                \
+  })
+
+#define write_asi(ASI, LOC, VAL) \
+  __asm__ volatile ("sta %0,[%r1]%2" : : "r" (VAL), "rJ" (LOC), "I" (ASI));
+
+/*
+ * Use this when modifying registers that cause memory to be modified.  This
+ * will cause GCC to reload all values after this point.
+ */
+#define write_asi_volatile(ASI, LOC, VAL) \
+  __asm__ volatile ("sta %0,[%r1]%2" : : "r" (VAL), "rJ" (LOC), "I" (ASI) \
+                    : "memory");
+
+#define	WRITE_PC(x)	registers[PC] = x; registers[NPC] = x + 4;
+
+/*
+ *		Processor Status Register (psr)
+ *
+ * 31	28|27	24|23	20|19	12|11	9|7|6|5|4	0
+ * +------+-------+-------+-------+------+-+-+-+--------+
+ * | impl |  ver  |  icc  | res.  | pil  | | | |  cwp   |
+ * +------+-------+-------+-------+------+-+-+-+--------+
+ *					  S P E
+ *					    S T
+ * if ET = 1, traps are enabled, 0 means disabled.
+ * if S = 1, you're in supervisor mode, 0 means user mode.
+ * cwp points to the current window.
+ *
+ *		Trap Base Register (tbr)
+ *
+ * 31		12|11 		4|3	0
+ * +--------------+--------------+------+
+ * |	tba	  |   	 tt	 | null	|
+ * +--------------+--------------+------+
+ *
+ * tba contains the most sig. 20 bits of the tbr base address
+ * tt is the trap number.
+ * 
+ *		Window Invalid Register (wim)
+ * 31		8| 7| 6| 5| 4| 3| 2| 1|  0
+ * +-------------+--+--+--+--+--+--+--+--+
+ * |   res.      |w7|w6|w5|w4|w3|w2|w1|w0|
+ * +-------------+--+--+--+--+--+--+--+--+
+ */
+
diff --git a/libgloss/sparc/sparc-stub.c b/libgloss/sparc/sparc-stub.c
new file mode 100644
index 0000000..fa21d72
--- /dev/null
+++ b/libgloss/sparc/sparc-stub.c
@@ -0,0 +1,848 @@
+#include "sparclite.h"
+/****************************************************************************
+
+		THIS SOFTWARE IS NOT COPYRIGHTED
+
+   HP offers the following for use in the public domain.  HP makes no
+   warranty with regard to the software or it's performance and the
+   user accepts the software "AS IS" with all faults.
+
+   HP DISCLAIMS ANY WARRANTIES, EXPRESS OR IMPLIED, WITH REGARD
+   TO THIS SOFTWARE INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+   OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+
+****************************************************************************/
+
+/****************************************************************************
+ *  Header: remcom.c,v 1.34 91/03/09 12:29:49 glenne Exp $
+ *
+ *  Module name: remcom.c $
+ *  Revision: 1.34 $
+ *  Date: 91/03/09 12:29:49 $
+ *  Contributor:     Lake Stevens Instrument Division$
+ *
+ *  Description:     low level support for gdb debugger. $
+ *
+ *  Considerations:  only works on target hardware $
+ *
+ *  Written by:      Glenn Engel $
+ *  ModuleState:     Experimental $
+ *
+ *  NOTES:           See Below $
+ *
+ *  Modified for SPARC by Stu Grossman, Cygnus Support.
+ *
+ *  This code has been extensively tested on the Fujitsu SPARClite demo board.
+ *
+ *  To enable debugger support, two things need to happen.  One, a
+ *  call to set_debug_traps() is necessary in order to allow any breakpoints
+ *  or error conditions to be properly intercepted and reported to gdb.
+ *  Two, a breakpoint needs to be generated to begin communication.  This
+ *  is most easily accomplished by a call to breakpoint().  Breakpoint()
+ *  simulates a breakpoint by executing a trap #1.
+ *
+ *************
+ *
+ *    The following gdb commands are supported:
+ *
+ * command          function                               Return value
+ *
+ *    g             return the value of the CPU registers  hex data or ENN
+ *    G             set the value of the CPU registers     OK or ENN
+ *
+ *    mAA..AA,LLLL  Read LLLL bytes at address AA..AA      hex data or ENN
+ *    MAA..AA,LLLL: Write LLLL bytes at address AA.AA      OK or ENN
+ *
+ *    c             Resume at current address              SNN   ( signal NN)
+ *    cAA..AA       Continue at address AA..AA             SNN
+ *
+ *    s             Step one instruction                   SNN
+ *    sAA..AA       Step one instruction from AA..AA       SNN
+ *
+ *    k             kill
+ *
+ *    ?             What was the last sigval ?             SNN   (signal NN)
+ *
+ *    bBB..BB	    Set baud rate to BB..BB		   OK or BNN, then sets
+ *							   baud rate
+ *
+ * All commands and responses are sent with a packet which includes a
+ * checksum.  A packet consists of
+ *
+ * $<packet info>#<checksum>.
+ *
+ * where
+ * <packet info> :: <characters representing the command or response>
+ * <checksum>    :: < two hex digits computed as modulo 256 sum of <packetinfo>>
+ *
+ * When a packet is received, it is first acknowledged with either '+' or '-'.
+ * '+' indicates a successful transfer.  '-' indicates a failed transfer.
+ *
+ * Example:
+ *
+ * Host:                  Reply:
+ * $m0,10#2a               +$00010203040506070809101112131415#42
+ *
+ ****************************************************************************/
+
+#include <string.h>
+#include <signal.h>
+
+/************************************************************************
+ *
+ * external low-level support routines
+ */
+
+extern putDebugChar();   /* write a single character      */
+extern getDebugChar();   /* read and return a single char */
+
+/************************************************************************/
+/* BUFMAX defines the maximum number of characters in inbound/outbound buffers*/
+/* at least NUMREGBYTES*2 are needed for register packets */
+#define BUFMAX 2048
+
+static int initialized = 0;	/* !0 means we've been initialized */
+
+static void set_mem_fault_trap();
+
+static const char hexchars[]="0123456789abcdef";
+
+#define NUMREGS 72
+
+/* Number of bytes of registers.  */
+#define NUMREGBYTES (NUMREGS * 4)
+enum regnames {G0, G1, G2, G3, G4, G5, G6, G7,
+		 O0, O1, O2, O3, O4, O5, SP, O7,
+		 L0, L1, L2, L3, L4, L5, L6, L7,
+		 I0, I1, I2, I3, I4, I5, FP, I7,
+
+		 F0, F1, F2, F3, F4, F5, F6, F7,
+		 F8, F9, F10, F11, F12, F13, F14, F15,
+		 F16, F17, F18, F19, F20, F21, F22, F23,
+		 F24, F25, F26, F27, F28, F29, F30, F31,
+		 Y, PSR, WIM, TBR, PC, NPC, FPSR, CPSR };
+
+/***************************  ASSEMBLY CODE MACROS *************************/
+/* 									   */
+
+extern void trap_low();
+
+asm("
+	.reserve trapstack, 1000 * 4, \"bss\", 8
+
+	.data
+	.align	4
+
+in_trap_handler:
+	.word	0
+
+	.text
+	.align 4
+
+! This function is called when any SPARC trap (except window overflow or
+! underflow) occurs.  It makes sure that the invalid register window is still
+! available before jumping into C code.  It will also restore the world if you
+! return from handle_exception.
+
+	.globl _trap_low
+_trap_low:
+	mov	%psr, %l0
+	mov	%wim, %l3
+
+	srl	%l3, %l0, %l4		! wim >> cwp
+	cmp	%l4, 1
+	bne	window_fine		! Branch if not in the invalid window
+	nop
+
+! Handle window overflow
+
+	mov	%g1, %l4		! Save g1, we use it to hold the wim
+	srl	%l3, 1, %g1		! Rotate wim right
+	tst	%g1
+	bg	good_wim		! Branch if new wim is non-zero
+	nop
+
+! At this point, we need to bring a 1 into the high order bit of the wim.
+! Since we don't want to make any assumptions about the number of register
+! windows, we figure it out dynamically so as to setup the wim correctly.
+
+	not	%g1			! Fill g1 with ones
+	mov	%g1, %wim		! Fill the wim with ones
+	nop
+	nop
+	nop
+	mov	%wim, %g1		! Read back the wim
+	inc	%g1			! Now g1 has 1 just to left of wim
+	srl	%g1, 1, %g1		! Now put 1 at top of wim
+	mov	%g0, %wim		! Clear wim so that subsequent save
+	nop				!  won't trap
+	nop
+	nop
+
+good_wim:
+	save	%g0, %g0, %g0		! Slip into next window
+	mov	%g1, %wim		! Install the new wim
+
+	std	%l0, [%sp + 0 * 4]	! save L & I registers
+	std	%l2, [%sp + 2 * 4]
+	std	%l4, [%sp + 4 * 4]
+	std	%l6, [%sp + 6 * 4]
+
+	std	%i0, [%sp + 8 * 4]
+	std	%i2, [%sp + 10 * 4]
+	std	%i4, [%sp + 12 * 4]
+	std	%i6, [%sp + 14 * 4]
+
+	restore				! Go back to trap window.
+	mov	%l4, %g1		! Restore %g1
+
+window_fine:
+	sethi	%hi(in_trap_handler), %l4
+	ld	[%lo(in_trap_handler) + %l4], %l5
+	tst	%l5
+	bg	recursive_trap
+	inc	%l5
+
+	set	trapstack+1000*4, %sp	! Switch to trap stack
+
+recursive_trap:
+	st	%l5, [%lo(in_trap_handler) + %l4]
+	sub	%sp,(16+1+6+1+72)*4,%sp	! Make room for input & locals
+ 					! + hidden arg + arg spill
+					! + doubleword alignment
+					! + registers[72] local var
+
+	std	%g0, [%sp + (24 + 0) * 4] ! registers[Gx]
+	std	%g2, [%sp + (24 + 2) * 4]
+	std	%g4, [%sp + (24 + 4) * 4]
+	std	%g6, [%sp + (24 + 6) * 4]
+
+	std	%i0, [%sp + (24 + 8) * 4] ! registers[Ox]
+	std	%i2, [%sp + (24 + 10) * 4]
+	std	%i4, [%sp + (24 + 12) * 4]
+	std	%i6, [%sp + (24 + 14) * 4]
+					! F0->F31 not implemented
+	mov	%y, %l4
+	mov	%tbr, %l5
+	st	%l4, [%sp + (24 + 64) * 4] ! Y
+	st	%l0, [%sp + (24 + 65) * 4] ! PSR
+	st	%l3, [%sp + (24 + 66) * 4] ! WIM
+	st	%l5, [%sp + (24 + 67) * 4] ! TBR
+	st	%l1, [%sp + (24 + 68) * 4] ! PC
+	st	%l2, [%sp + (24 + 69) * 4] ! NPC
+
+					! CPSR and FPSR not impl
+
+	or	%l0, 0xf20, %l4
+	mov	%l4, %psr		! Turn on traps, disable interrupts
+
+	call	_handle_exception
+	add	%sp, 24 * 4, %o0	! Pass address of registers
+
+! Reload all of the registers that aren't on the stack
+
+	ld	[%sp + (24 + 1) * 4], %g1 ! registers[Gx]
+	ldd	[%sp + (24 + 2) * 4], %g2
+	ldd	[%sp + (24 + 4) * 4], %g4
+	ldd	[%sp + (24 + 6) * 4], %g6
+
+	ldd	[%sp + (24 + 8) * 4], %i0 ! registers[Ox]
+	ldd	[%sp + (24 + 10) * 4], %i2
+	ldd	[%sp + (24 + 12) * 4], %i4
+	ldd	[%sp + (24 + 14) * 4], %i6
+
+	ldd	[%sp + (24 + 64) * 4], %l0 ! Y & PSR
+	ldd	[%sp + (24 + 68) * 4], %l2 ! PC & NPC
+
+	restore				! Ensure that previous window is valid
+	save	%g0, %g0, %g0		!  by causing a window_underflow trap
+
+	mov	%l0, %y
+	mov	%l1, %psr		! Make sure that traps are disabled
+					! for rett
+
+	sethi	%hi(in_trap_handler), %l4
+	ld	[%lo(in_trap_handler) + %l4], %l5
+	dec	%l5
+	st	%l5, [%lo(in_trap_handler) + %l4]
+
+	jmpl	%l2, %g0		! Restore old PC
+	rett	%l3			! Restore old nPC
+");
+
+/* Convert ch from a hex digit to an int */
+
+static int
+hex(ch)
+     unsigned char ch;
+{
+  if (ch >= 'a' && ch <= 'f')
+    return ch-'a'+10;
+  if (ch >= '0' && ch <= '9')
+    return ch-'0';
+  if (ch >= 'A' && ch <= 'F')
+    return ch-'A'+10;
+  return -1;
+}
+
+/* scan for the sequence $<data>#<checksum>     */
+
+static void
+getpacket(buffer)
+     char *buffer;
+{
+  unsigned char checksum;
+  unsigned char xmitcsum;
+  int i;
+  int count;
+  unsigned char ch;
+
+  do
+    {
+      /* wait around for the start character, ignore all other characters */
+      while ((ch = (getDebugChar() & 0x7f)) != '$') ;
+
+      checksum = 0;
+      xmitcsum = -1;
+
+      count = 0;
+
+      /* now, read until a # or end of buffer is found */
+      while (count < BUFMAX)
+	{
+	  ch = getDebugChar() & 0x7f;
+	  if (ch == '#')
+	    break;
+	  checksum = checksum + ch;
+	  buffer[count] = ch;
+	  count = count + 1;
+	}
+
+      if (count >= BUFMAX)
+	continue;
+
+      buffer[count] = 0;
+
+      if (ch == '#')
+	{
+	  xmitcsum = hex(getDebugChar() & 0x7f) << 4;
+	  xmitcsum |= hex(getDebugChar() & 0x7f);
+#if 0
+	  /* Humans shouldn't have to figure out checksums to type to it. */
+	  putDebugChar ('+');
+	  return;
+#endif
+	  if (checksum != xmitcsum)
+	    putDebugChar('-');	/* failed checksum */
+	  else
+	    {
+	      putDebugChar('+'); /* successful transfer */
+	      /* if a sequence char is present, reply the sequence ID */
+	      if (buffer[2] == ':')
+		{
+		  putDebugChar(buffer[0]);
+		  putDebugChar(buffer[1]);
+		  /* remove sequence chars from buffer */
+		  count = strlen(buffer);
+		  for (i=3; i <= count; i++)
+		    buffer[i-3] = buffer[i];
+		}
+	    }
+	}
+    }
+  while (checksum != xmitcsum);
+}
+
+/* send the packet in buffer.  */
+
+static void
+putpacket(buffer)
+     unsigned char *buffer;
+{
+  unsigned char checksum;
+  int count;
+  unsigned char ch;
+
+  /*  $<packet info>#<checksum>. */
+  do
+    {
+      putDebugChar('$');
+      checksum = 0;
+      count = 0;
+
+      while (ch = buffer[count])
+	{
+	  if (! putDebugChar(ch))
+	    return;
+	  checksum += ch;
+	  count += 1;
+	}
+
+      putDebugChar('#');
+      putDebugChar(hexchars[checksum >> 4]);
+      putDebugChar(hexchars[checksum & 0xf]);
+
+    }
+  while ((getDebugChar() & 0x7f) != '+');
+}
+
+static char remcomInBuffer[BUFMAX];
+static char remcomOutBuffer[BUFMAX];
+
+/* Indicate to caller of mem2hex or hex2mem that there has been an
+   error.  */
+static volatile int mem_err = 0;
+
+/* Convert the memory pointed to by mem into hex, placing result in buf.
+ * Return a pointer to the last char put in buf (null), in case of mem fault,
+ * return 0.
+ * If MAY_FAULT is non-zero, then we will handle memory faults by returning
+ * a 0, else treat a fault like any other fault in the stub.
+ */
+
+static unsigned char *
+mem2hex(mem, buf, count, may_fault)
+     unsigned char *mem;
+     unsigned char *buf;
+     int count;
+     int may_fault;
+{
+  unsigned char ch;
+
+  set_mem_fault_trap(may_fault);
+
+  while (count-- > 0)
+    {
+      ch = *mem++;
+      if (mem_err)
+	return 0;
+      *buf++ = hexchars[ch >> 4];
+      *buf++ = hexchars[ch & 0xf];
+    }
+
+  *buf = 0;
+
+  set_mem_fault_trap(0);
+
+  return buf;
+}
+
+/* convert the hex array pointed to by buf into binary to be placed in mem
+ * return a pointer to the character AFTER the last byte written */
+
+static char *
+hex2mem(buf, mem, count, may_fault)
+     unsigned char *buf;
+     unsigned char *mem;
+     int count;
+     int may_fault;
+{
+  int i;
+  unsigned char ch;
+
+  set_mem_fault_trap(may_fault);
+
+  for (i=0; i<count; i++)
+    {
+      ch = hex(*buf++) << 4;
+      ch |= hex(*buf++);
+      *mem++ = ch;
+      if (mem_err)
+	return 0;
+    }
+
+  set_mem_fault_trap(0);
+
+  return mem;
+}
+
+/* This table contains the mapping between SPARC hardware trap types, and
+   signals, which are primarily what GDB understands.  It also indicates
+   which hardware traps we need to commandeer when initializing the stub. */
+
+static struct hard_trap_info
+{
+  unsigned char tt;		/* Trap type code for SPARClite */
+  unsigned char signo;		/* Signal that we map this trap into */
+} hard_trap_info[] = {
+  {1, SIGSEGV},			/* instruction access error */
+  {2, SIGILL},			/* privileged instruction */
+  {3, SIGILL},			/* illegal instruction */
+  {4, SIGEMT},			/* fp disabled */
+  {36, SIGEMT},			/* cp disabled */
+  {7, SIGBUS},			/* mem address not aligned */
+  {9, SIGSEGV},			/* data access exception */
+  {10, SIGEMT},			/* tag overflow */
+  {128+1, SIGTRAP},		/* ta 1 - normal breakpoint instruction */
+  {0, 0}			/* Must be last */
+};
+
+/* Set up exception handlers for tracing and breakpoints */
+
+void
+set_debug_traps()
+{
+  struct hard_trap_info *ht;
+
+  for (ht = hard_trap_info; ht->tt && ht->signo; ht++)
+    exceptionHandler(ht->tt, trap_low);
+
+  /* In case GDB is started before us, ack any packets (presumably
+     "$?#xx") sitting there.  */
+
+  putDebugChar ('+');
+
+  initialized = 1;
+}
+
+asm ("
+! Trap handler for memory errors.  This just sets mem_err to be non-zero.  It
+! assumes that %l1 is non-zero.  This should be safe, as it is doubtful that
+! 0 would ever contain code that could mem fault.  This routine will skip
+! past the faulting instruction after setting mem_err.
+
+	.text
+	.align 4
+
+_fltr_set_mem_err:
+	sethi %hi(_mem_err), %l0
+	st %l1, [%l0 + %lo(_mem_err)]
+	jmpl %l2, %g0
+	rett %l2+4
+");
+
+static void
+set_mem_fault_trap(enable)
+     int enable;
+{
+  extern void fltr_set_mem_err();
+  mem_err = 0;
+
+  if (enable)
+    exceptionHandler(9, fltr_set_mem_err);
+  else
+    exceptionHandler(9, trap_low);
+}
+
+/* Convert the SPARC hardware trap type code to a unix signal number. */
+
+static int
+computeSignal(tt)
+     int tt;
+{
+  struct hard_trap_info *ht;
+
+  for (ht = hard_trap_info; ht->tt && ht->signo; ht++)
+    if (ht->tt == tt)
+      return ht->signo;
+
+  return SIGHUP;		/* default for things we don't know about */
+}
+
+/*
+ * While we find nice hex chars, build an int.
+ * Return number of chars processed.
+ */
+
+static unsigned int
+hexToInt(char **ptr, int *intValue)
+{
+  int numChars = 0;
+  int hexValue;
+
+  *intValue = 0;
+
+  while (**ptr)
+    {
+      hexValue = hex(**ptr);
+      if (hexValue < 0)
+	break;
+
+      *intValue = (*intValue << 4) | hexValue;
+      numChars ++;
+
+      (*ptr)++;
+    }
+
+  return (numChars);
+}
+
+/*
+ * This function does all command procesing for interfacing to gdb.  It
+ * returns 1 if you should skip the instruction at the trap address, 0
+ * otherwise.
+ */
+
+extern void breakinst();
+
+static void
+handle_exception (registers)
+     unsigned long *registers;
+{
+  int tt;			/* Trap type */
+  int sigval;
+  unsigned int addr;
+  int length;
+  char *ptr;
+  unsigned long *sp;
+
+/* First, we must force all of the windows to be spilled out */
+
+  asm("	save %sp, -64, %sp
+	save %sp, -64, %sp
+	save %sp, -64, %sp
+	save %sp, -64, %sp
+	save %sp, -64, %sp
+	save %sp, -64, %sp
+	save %sp, -64, %sp
+	save %sp, -64, %sp
+	restore
+	restore
+	restore
+	restore
+	restore
+	restore
+	restore
+	restore
+");
+
+  if (registers[PC] == (unsigned long)breakinst)
+    {
+      registers[PC] = registers[NPC];
+      registers[NPC] += 4;
+    }
+
+  sp = (unsigned long *)registers[SP];
+
+  tt = (registers[TBR] >> 4) & 0xff;
+
+  /* reply to host that an exception has occurred */
+  sigval = computeSignal(tt);
+  ptr = remcomOutBuffer;
+
+  *ptr++ = 'T';
+  *ptr++ = hexchars[sigval >> 4];
+  *ptr++ = hexchars[sigval & 0xf];
+
+  *ptr++ = hexchars[PC >> 4];
+  *ptr++ = hexchars[PC & 0xf];
+  *ptr++ = ':';
+  ptr = mem2hex((char *)&registers[PC], ptr, 4, 0);
+  *ptr++ = ';';
+
+  *ptr++ = hexchars[FP >> 4];
+  *ptr++ = hexchars[FP & 0xf];
+  *ptr++ = ':';
+  ptr = mem2hex(sp + 8 + 6, ptr, 4, 0); /* FP */
+  *ptr++ = ';';
+
+  *ptr++ = hexchars[SP >> 4];
+  *ptr++ = hexchars[SP & 0xf];
+  *ptr++ = ':';
+  ptr = mem2hex((char *)&sp, ptr, 4, 0);
+  *ptr++ = ';';
+
+  *ptr++ = hexchars[NPC >> 4];
+  *ptr++ = hexchars[NPC & 0xf];
+  *ptr++ = ':';
+  ptr = mem2hex((char *)&registers[NPC], ptr, 4, 0);
+  *ptr++ = ';';
+
+  *ptr++ = hexchars[O7 >> 4];
+  *ptr++ = hexchars[O7 & 0xf];
+  *ptr++ = ':';
+  ptr = mem2hex((char *)&registers[O7], ptr, 4, 0);
+  *ptr++ = ';';
+
+  *ptr++ = 0;
+
+  putpacket(remcomOutBuffer);
+
+  while (1)
+    {
+      remcomOutBuffer[0] = 0;
+
+      getpacket(remcomInBuffer);
+      switch (remcomInBuffer[0])
+	{
+	case '?':
+	  remcomOutBuffer[0] = 'S';
+	  remcomOutBuffer[1] = hexchars[sigval >> 4];
+	  remcomOutBuffer[2] = hexchars[sigval & 0xf];
+	  remcomOutBuffer[3] = 0;
+	  break;
+
+	case 'd':
+				/* toggle debug flag */
+	  break;
+
+	case 'g':		/* return the value of the CPU registers */
+	  {
+	    ptr = remcomOutBuffer;
+	    ptr = mem2hex((char *)registers, ptr, 16 * 4, 0); /* G & O regs */
+	    ptr = mem2hex(sp + 0, ptr, 16 * 4, 0); /* L & I regs */
+	    memset(ptr, '0', 32 * 8); /* Floating point */
+	    mem2hex((char *)&registers[Y],
+		    ptr + 32 * 4 * 2,
+		    8 * 4,
+		    0);		/* Y, PSR, WIM, TBR, PC, NPC, FPSR, CPSR */
+	  }
+	  break;
+
+	case 'G':	   /* set the value of the CPU registers - return OK */
+	  {
+	    unsigned long *newsp, psr;
+
+	    psr = registers[PSR];
+
+	    ptr = &remcomInBuffer[1];
+	    hex2mem(ptr, (char *)registers, 16 * 4, 0); /* G & O regs */
+	    hex2mem(ptr + 16 * 4 * 2, sp + 0, 16 * 4, 0); /* L & I regs */
+	    hex2mem(ptr + 64 * 4 * 2, (char *)&registers[Y],
+		    8 * 4, 0);	/* Y, PSR, WIM, TBR, PC, NPC, FPSR, CPSR */
+
+	    /* See if the stack pointer has moved.  If so, then copy the saved
+	       locals and ins to the new location.  This keeps the window
+	       overflow and underflow routines happy.  */
+
+	    newsp = (unsigned long *)registers[SP];
+	    if (sp != newsp)
+	      sp = memcpy(newsp, sp, 16 * 4);
+
+	    /* Don't allow CWP to be modified. */
+
+	    if (psr != registers[PSR])
+	      registers[PSR] = (psr & 0x1f) | (registers[PSR] & ~0x1f);
+
+	    strcpy(remcomOutBuffer,"OK");
+	  }
+	  break;
+
+	case 'm':	  /* mAA..AA,LLLL  Read LLLL bytes at address AA..AA */
+	  /* Try to read %x,%x.  */
+
+	  ptr = &remcomInBuffer[1];
+
+	  if (hexToInt(&ptr, &addr)
+	      && *ptr++ == ','
+	      && hexToInt(&ptr, &length))
+	    {
+	      if (mem2hex((char *)addr, remcomOutBuffer, length, 1))
+		break;
+
+	      strcpy (remcomOutBuffer, "E03");
+	    }
+	  else
+	    strcpy(remcomOutBuffer,"E01");
+	  break;
+
+	case 'M': /* MAA..AA,LLLL: Write LLLL bytes at address AA.AA return OK */
+	  /* Try to read '%x,%x:'.  */
+
+	  ptr = &remcomInBuffer[1];
+
+	  if (hexToInt(&ptr, &addr)
+	      && *ptr++ == ','
+	      && hexToInt(&ptr, &length)
+	      && *ptr++ == ':')
+	    {
+	      if (hex2mem(ptr, (char *)addr, length, 1))
+		strcpy(remcomOutBuffer, "OK");
+	      else
+		strcpy(remcomOutBuffer, "E03");
+	    }
+	  else
+	    strcpy(remcomOutBuffer, "E02");
+	  break;
+
+	case 'c':    /* cAA..AA    Continue at address AA..AA(optional) */
+	  /* try to read optional parameter, pc unchanged if no parm */
+
+	  ptr = &remcomInBuffer[1];
+	  if (hexToInt(&ptr, &addr))
+	    {
+	      registers[PC] = addr;
+	      registers[NPC] = addr + 4;
+	    }
+
+/* Need to flush the instruction cache here, as we may have deposited a
+   breakpoint, and the icache probably has no way of knowing that a data ref to
+   some location may have changed something that is in the instruction cache.
+ */
+
+	  flush_i_cache();
+	  return;
+
+	  /* kill the program */
+	case 'k' :		/* do nothing */
+	  break;
+#if 0
+	case 't':		/* Test feature */
+	  asm (" std %f30,[%sp]");
+	  break;
+#endif
+	case 'r':		/* Reset */
+	  asm ("call 0
+		nop ");
+	  break;
+
+#if 0
+Disabled until we can unscrew this properly
+
+	case 'b':	  /* bBB...  Set baud rate to BB... */
+	  {
+	    int baudrate;
+	    extern void set_timer_3();
+
+	    ptr = &remcomInBuffer[1];
+	    if (!hexToInt(&ptr, &baudrate))
+	      {
+		strcpy(remcomOutBuffer,"B01");
+		break;
+	      }
+
+	    /* Convert baud rate to uart clock divider */
+	    switch (baudrate)
+	      {
+	      case 38400:
+		baudrate = 16;
+		break;
+	      case 19200:
+		baudrate = 33;
+		break;
+	      case 9600:
+		baudrate = 65;
+		break;
+	      default:
+		strcpy(remcomOutBuffer,"B02");
+		goto x1;
+	      }
+
+	    putpacket("OK");	/* Ack before changing speed */
+	    set_timer_3(baudrate); /* Set it */
+	  }
+x1:	  break;
+#endif
+	}			/* switch */
+
+      /* reply to the request */
+      putpacket(remcomOutBuffer);
+    }
+}
+
+/* This function will generate a breakpoint exception.  It is used at the
+   beginning of a program to sync up with a debugger and can be used
+   otherwise as a quick means to stop program execution and "break" into
+   the debugger. */
+
+void
+breakpoint()
+{
+  if (!initialized)
+    return;
+
+  asm("	.globl _breakinst
+
+	_breakinst: ta 1
+      ");
+}
diff --git a/libgloss/sparc/sparc86x.ld b/libgloss/sparc/sparc86x.ld
new file mode 100644
index 0000000..e7cf27e
--- /dev/null
+++ b/libgloss/sparc/sparc86x.ld
@@ -0,0 +1,177 @@
+/*
+ *uncomment this if you want the linker to output srecords.
+OUTPUT_FORMAT(srec)
+ *
+ */
+ENTRY(_start)
+STARTUP(crt0.o)
+OUTPUT_ARCH(sparc)
+SEARCH_DIR(.)
+__DYNAMIC  =  0;
+GROUP (-lc -lslite86x -lgcc)
+
+/*
+ * The memory map looks like this:
+ * +--------------------+ <- low memory
+ * | .text              |
+ * |        _stext       |
+ * |        _etext      |
+ * |        ctor list   | the ctor and dtor lists are for
+ * |        dtor list   | C++ support
+ * |        _end_text   |
+ * +--------------------+
+ * | .data              | initialized data goes here
+ * |        _sdata      |
+ * |        _edata      |
+ * +--------------------+
+ * | .bss               |
+ * |        __bss_start | start of bss, cleared by crt0
+ * |        _end        | start of heap, used by sbrk()
+ * +--------------------+
+ * |    heap space      |
+ * |        _ENDHEAP    |
+ * |    stack space     | 
+ * |        __stack     | top of stack
+ * +--------------------+ <- high memory
+ */
+
+_STACK_SIZE = (16 * 1024);
+_RAM_SIZE = 2M;
+_RAM_START = 0x40010000;
+_RAM_END = _RAM_START + _RAM_SIZE;
+
+/*
+ * Base address of the on-CPU peripherals. This is for compatability
+ * with the simulator.
+ */
+
+_ERC32_MEC = 0x0;
+
+/*
+ * Setup the memory map of the MB86931-EB Board (ex931)
+ * stack grows down towards low memory. 
+ */
+MEMORY
+{
+  ram (rwx) : ORIGIN = 0x40010000, LENGTH = 2M
+}
+
+__stack = _RAM_START + _RAM_SIZE - 4 * 16;
+__trap_stack = (_RAM_START + _RAM_SIZE - 4 * 16) - _STACK_SIZE;
+
+/*
+ * All the symbols that might be accessed from C code need to be
+ * listed twice, once with an additional underscore. aout format needs
+ * and extra underscore, whereas coff & elf doesn't. This is to work
+ * with both.
+ */
+/*
+ * Initalize some symbols to be zero so we can reference them in the
+ * crt0 without core dumping. These functions are all optional, but
+ * we do this so we can have our crt0 always use them if they exist. 
+ * This is so BSPs work better when using the crt0 installed with gcc.
+ * We have to initalize them twice, so we cover a.out (which prepends
+ * an underscore) and coff object file formats.
+ */
+PROVIDE (hardware_init_hook = 0);
+PROVIDE (_hardware_init_hook = 0);
+PROVIDE (software_init_hook = 0);
+PROVIDE (_software_init_hook = 0);
+SECTIONS
+{
+  .text : {
+    stext = .;
+    _stext = .;
+    __EH_FRAME_BEGIN__ = .;
+
+    CREATE_OBJECT_SYMBOLS
+    *(.text)
+
+     __CTOR_LIST__ = .;
+    LONG((__CTOR_END__ - __CTOR_LIST__) / 4 - 2)
+    KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors))
+    KEEP (*(SORT(.ctors.*)))
+    KEEP (*crtend.o(.ctors))
+    LONG(0)
+    __CTOR_END__ = .;
+    __DTOR_LIST__ = .;
+      LONG((__DTOR_END__ - __DTOR_LIST__) / 4 - 2)
+    KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))
+    KEEP (*(SORT(.dtors.*)))
+    KEEP (*crtend.o(.dtors))
+     LONG(0)
+    __DTOR_END__ = .;
+
+    _etext  =  .;
+
+    *(.init)
+    *(.lit)
+    *(.rodata)
+    *(.shdata)
+    *(.eh_frame)
+    *(.gnu.linkonce.t*)
+    *(.gnu.linkonce.r*)
+    *(.gcc_except_table)
+    *(.fini)
+
+  }  > ram
+  .shbss SIZEOF(.text) + ADDR(.text) :	{
+    *(.shbss)
+  } 
+  .talias : { }  > ram
+  .data ALIGN(0x2000) : {
+    sdata  =  .;
+    _sdata  =  .;
+    *(.data)
+    edata  =  .;
+    _edata  =  .;
+  } > ram
+  .bss SIZEOF(.data) + ADDR(.data) : {
+   sbss = . ;
+   _sbss = . ;
+   __bss_start = ALIGN(0x8);
+   __bss_start = ALIGN(0x8);
+   *(.bss)
+   *(COMMON)
+     end = ALIGN(0x8);
+     _end = ALIGN(0x8);
+     __end = ALIGN(0x8);
+     ebss = .;
+     _ebss = .;
+  }
+  .mstack  : { }  > ram
+  .rstack  : { }  > ram
+  .stab  0 (NOLOAD) : {
+    [ .stab ]
+  }
+  .stabstr  0 (NOLOAD) :
+  {
+    [ .stabstr ]
+  }
+  /* DWARF debug sections.
+     Symbols in the DWARF debugging sections are relative to the beginning
+     of the section so we begin them at 0.  */
+  /* DWARF 1 */
+  .debug          0 : { *(.debug) }
+  .line           0 : { *(.line) }
+  /* GNU DWARF 1 extensions */
+  .debug_srcinfo  0 : { *(.debug_srcinfo) }
+  .debug_sfnames  0 : { *(.debug_sfnames) }
+  /* DWARF 1.1 and DWARF 2 */
+  .debug_aranges  0 : { *(.debug_aranges) }
+  .debug_pubnames 0 : { *(.debug_pubnames) }
+  /* DWARF 2 */
+  .debug_info     0 : { *(.debug_info) }
+  .debug_abbrev   0 : { *(.debug_abbrev) }
+  .debug_line     0 : { *(.debug_line) }
+  .debug_frame    0 : { *(.debug_frame) }
+  .debug_str      0 : { *(.debug_str) }
+  .debug_loc      0 : { *(.debug_loc) }
+  .debug_macinfo  0 : { *(.debug_macinfo) }
+  /* SGI/MIPS DWARF 2 extensions */
+  .debug_weaknames 0 : { *(.debug_weaknames) }
+  .debug_funcnames 0 : { *(.debug_funcnames) }
+  .debug_typenames 0 : { *(.debug_typenames) }
+  .debug_varnames  0 : { *(.debug_varnames) }
+  /* These must appear regardless of  .  */
+}
diff --git a/libgloss/sparc/sparcl-stub.c b/libgloss/sparc/sparcl-stub.c
new file mode 100644
index 0000000..634878b
--- /dev/null
+++ b/libgloss/sparc/sparcl-stub.c
@@ -0,0 +1,1005 @@
+/****************************************************************************
+
+		THIS SOFTWARE IS NOT COPYRIGHTED
+
+   HP offers the following for use in the public domain.  HP makes no
+   warranty with regard to the software or it's performance and the
+   user accepts the software "AS IS" with all faults.
+
+   HP DISCLAIMS ANY WARRANTIES, EXPRESS OR IMPLIED, WITH REGARD
+   TO THIS SOFTWARE INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+   OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+
+****************************************************************************/
+
+/****************************************************************************
+ *  Header: remcom.c,v 1.34 91/03/09 12:29:49 glenne Exp $
+ *
+ *  Module name: remcom.c $
+ *  Revision: 1.34 $
+ *  Date: 91/03/09 12:29:49 $
+ *  Contributor:     Lake Stevens Instrument Division$
+ *
+ *  Description:     low level support for gdb debugger. $
+ *
+ *  Considerations:  only works on target hardware $
+ *
+ *  Written by:      Glenn Engel $
+ *  ModuleState:     Experimental $
+ *
+ *  NOTES:           See Below $
+ *
+ *  Modified for SPARC by Stu Grossman, Cygnus Support.
+ *  Based on sparc-stub.c, it's modified for SPARClite Debug Unit hardware
+ *  breakpoint support to create sparclite-stub.c, by Kung Hsu, Cygnus Support.
+ *
+ *  This code has been extensively tested on the Fujitsu SPARClite demo board.
+ *
+ *  To enable debugger support, two things need to happen.  One, a
+ *  call to set_debug_traps() is necessary in order to allow any breakpoints
+ *  or error conditions to be properly intercepted and reported to gdb.
+ *  Two, a breakpoint needs to be generated to begin communication.  This
+ *  is most easily accomplished by a call to breakpoint().  Breakpoint()
+ *  simulates a breakpoint by executing a trap #1.
+ *
+ *************
+ *
+ *    The following gdb commands are supported:
+ *
+ * command          function                               Return value
+ *
+ *    g             return the value of the CPU registers  hex data or ENN
+ *    G             set the value of the CPU registers     OK or ENN
+ *
+ *    mAA..AA,LLLL  Read LLLL bytes at address AA..AA      hex data or ENN
+ *    MAA..AA,LLLL: Write LLLL bytes at address AA.AA      OK or ENN
+ *
+ *    c             Resume at current address              SNN   ( signal NN)
+ *    cAA..AA       Continue at address AA..AA             SNN
+ *
+ *    s             Step one instruction                   SNN
+ *    sAA..AA       Step one instruction from AA..AA       SNN
+ *
+ *    k             kill
+ *
+ *    ?             What was the last sigval ?             SNN   (signal NN)
+ *
+ *    bBB..BB	    Set baud rate to BB..BB		   OK or BNN, then sets
+ *							   baud rate
+ *
+ * All commands and responses are sent with a packet which includes a
+ * checksum.  A packet consists of
+ *
+ * $<packet info>#<checksum>.
+ *
+ * where
+ * <packet info> :: <characters representing the command or response>
+ * <checksum>    :: < two hex digits computed as modulo 256 sum of <packetinfo>>
+ *
+ * When a packet is received, it is first acknowledged with either '+' or '-'.
+ * '+' indicates a successful transfer.  '-' indicates a failed transfer.
+ *
+ * Example:
+ *
+ * Host:                  Reply:
+ * $m0,10#2a               +$00010203040506070809101112131415#42
+ *
+ ****************************************************************************/
+
+#include <string.h>
+#include <signal.h>
+#include "asm.h"
+
+/************************************************************************
+ *
+ * external low-level support routines
+ */
+extern putDebugChar();   /* write a single character      */
+extern getDebugChar();   /* read and return a single char */
+
+/* Pointer to hook for outbyte, set by stub's exception handler.  */
+extern void (*__outbyte_hook)();
+
+/************************************************************************/
+/* BUFMAX defines the maximum number of characters in inbound/outbound buffers*/
+/* at least NUMREGBYTES*2 are needed for register packets */
+#define BUFMAX 2048
+
+static int initialized = 0;	/* !0 means we've been initialized */
+
+extern void breakinst();
+static void hw_breakpoint();
+static void set_mem_fault_trap();
+static void get_in_break_mode();
+
+static const char hexchars[]="0123456789abcdef";
+
+#define NUMREGS 80 
+
+/* Number of bytes of registers.  */
+#define NUMREGBYTES (NUMREGS * 4)
+enum regnames {G0, G1, G2, G3, G4, G5, G6, G7,
+		 O0, O1, O2, O3, O4, O5, SP, O7,
+		 L0, L1, L2, L3, L4, L5, L6, L7,
+		 I0, I1, I2, I3, I4, I5, FP, I7,
+
+		 F0, F1, F2, F3, F4, F5, F6, F7,
+		 F8, F9, F10, F11, F12, F13, F14, F15,
+		 F16, F17, F18, F19, F20, F21, F22, F23,
+		 F24, F25, F26, F27, F28, F29, F30, F31,
+		 Y, PSR, WIM, TBR, PC, NPC, FPSR, CPSR,
+		 DIA1, DIA2, DDA1, DDA2, DDV1, DDV2, DCR, DSR };
+
+/***************************  ASSEMBLY CODE MACROS *************************/
+/* 									   */
+
+extern void trap_low();
+
+asm("
+	.reserve trapstack, 1000 * 4, \"bss\", 8
+
+	.data
+	.align	4
+
+in_trap_handler:
+	.word	0
+
+	.text
+	.align 4
+
+! This function is called when any SPARC trap (except window overflow or
+! underflow) occurs.  It makes sure that the invalid register window is still
+! available before jumping into C code.  It will also restore the world if you
+! return from handle_exception.
+
+	.globl " STRINGSYM(trap_low) "
+" STRINGSYM(trap_low) ":
+	mov	%psr, %l0
+	mov	%wim, %l3
+
+	srl	%l3, %l0, %l4		! wim >> cwp
+	cmp	%l4, 1
+	bne	window_fine		! Branch if not in the invalid window
+	nop
+
+! Handle window overflow
+
+	mov	%g1, %l4		! Save g1, we use it to hold the wim
+	srl	%l3, 1, %g1		! Rotate wim right
+	tst	%g1
+	bg	good_wim		! Branch if new wim is non-zero
+	nop
+
+! At this point, we need to bring a 1 into the high order bit of the wim.
+! Since we don't want to make any assumptions about the number of register
+! windows, we figure it out dynamically so as to setup the wim correctly.
+
+	not	%g1			! Fill g1 with ones
+	mov	%g1, %wim		! Fill the wim with ones
+	nop
+	nop
+	nop
+	mov	%wim, %g1		! Read back the wim
+	inc	%g1			! Now g1 has 1 just to left of wim
+	srl	%g1, 1, %g1		! Now put 1 at top of wim
+	mov	%g0, %wim		! Clear wim so that subsequent save
+	nop				!  won't trap
+	nop
+	nop
+
+good_wim:
+	save	%g0, %g0, %g0		! Slip into next window
+	mov	%g1, %wim		! Install the new wim
+
+	std	%l0, [%sp + 0 * 4]	! save L & I registers
+	std	%l2, [%sp + 2 * 4]
+	std	%l4, [%sp + 4 * 4]
+	std	%l6, [%sp + 6 * 4]
+
+	std	%i0, [%sp + 8 * 4]
+	std	%i2, [%sp + 10 * 4]
+	std	%i4, [%sp + 12 * 4]
+	std	%i6, [%sp + 14 * 4]
+
+	restore				! Go back to trap window.
+	mov	%l4, %g1		! Restore %g1
+
+window_fine:
+	sethi	%hi(in_trap_handler), %l4
+	ld	[%lo(in_trap_handler) + %l4], %l5
+	tst	%l5
+	bg	recursive_trap
+	inc	%l5
+
+	set	trapstack+1000*4, %sp	! Switch to trap stack
+
+recursive_trap:
+	st	%l5, [%lo(in_trap_handler) + %l4]
+	sub	%sp,(16+1+6+1+80)*4,%sp	! Make room for input & locals
+ 					! + hidden arg + arg spill
+					! + doubleword alignment
+					! + registers[72] local var
+
+	std	%g0, [%sp + (24 + 0) * 4] ! registers[Gx]
+	std	%g2, [%sp + (24 + 2) * 4]
+	std	%g4, [%sp + (24 + 4) * 4]
+	std	%g6, [%sp + (24 + 6) * 4]
+
+	std	%i0, [%sp + (24 + 8) * 4] ! registers[Ox]
+	std	%i2, [%sp + (24 + 10) * 4]
+	std	%i4, [%sp + (24 + 12) * 4]
+	std	%i6, [%sp + (24 + 14) * 4]
+					! F0->F31 not implemented
+	mov	%y, %l4
+	mov	%tbr, %l5
+	st	%l4, [%sp + (24 + 64) * 4] ! Y
+	st	%l0, [%sp + (24 + 65) * 4] ! PSR
+	st	%l3, [%sp + (24 + 66) * 4] ! WIM
+	st	%l5, [%sp + (24 + 67) * 4] ! TBR
+	st	%l1, [%sp + (24 + 68) * 4] ! PC
+	st	%l2, [%sp + (24 + 69) * 4] ! NPC
+					! CPSR and FPSR not impl
+	or	%l0, 0xf20, %l4
+	mov	%l4, %psr		! Turn on traps, disable interrupts
+	nop
+	nop
+	nop
+ 	call 	" STRINGSYM(get_in_break_mode) "
+ 	nop
+	nop
+	nop
+
+	sethi	%hi(0xff00), %l5
+	or	%l5, %lo(0xff00), %l5
+
+	lda	[%l5]0x1, %l4
+	st 	%l4, [%sp + (24 + 72) * 4] ! DIA1, debug instr addr 1
+	add	%l5, 4, %l5
+	lda	[%l5]0x1, %l4
+	st 	%l4, [%sp + (24 + 73) * 4] ! DIA2, debug instr addr 2
+	add	%l5, 4, %l5
+	lda	[%l5]0x1, %l4
+	st 	%l4, [%sp + (24 + 74) * 4] ! DDA1, debug data addr 1
+	add	%l5, 4, %l5
+	lda	[%l5]0x1, %l4
+	st 	%l4, [%sp + (24 + 75) * 4] ! DDA2, debug data addr 2
+	add	%l5, 4, %l5
+	lda	[%l5]0x1, %l4
+	st 	%l4, [%sp + (24 + 76) * 4] ! DDV1, debug data val 1
+	add	%l5, 4, %l5
+	lda	[%l5]0x1, %l4
+	st 	%l4, [%sp + (24 + 77) * 4] ! DDV2, debug data val 2 
+	add	%l5, 4, %l5
+	lda	[%l5]0x1, %l4
+	st 	%l4, [%sp + (24 + 78) * 4] ! DCR, debug control reg 
+	add	%l5, 4, %l5
+	lda	[%l5]0x1, %l4
+	st 	%l4, [%sp + (24 + 79) * 4] ! DSR, debug status reg
+	nop
+        nop
+	or	%l0, 0xf20, %l4
+	mov	%l4, %psr		! Turn on traps, disable interrupts
+	nop
+        nop
+        nop
+	call	" STRINGSYM(handle_exception) "
+	add	%sp, 24 * 4, %o0	! Pass address of registers
+
+! Reload all of the registers that aren't on the stack
+
+	ld	[%sp + (24 + 1) * 4], %g1 ! registers[Gx]
+	ldd	[%sp + (24 + 2) * 4], %g2
+	ldd	[%sp + (24 + 4) * 4], %g4
+	ldd	[%sp + (24 + 6) * 4], %g6
+
+	ldd	[%sp + (24 + 8) * 4], %i0 ! registers[Ox]
+	ldd	[%sp + (24 + 10) * 4], %i2
+	ldd	[%sp + (24 + 12) * 4], %i4
+	ldd	[%sp + (24 + 14) * 4], %i6
+
+        sethi	%hi(0xff00), %l2
+	or	%l2, %lo(0xff00), %l2
+	ldd 	[%sp + (24 + 72) * 4], %l4 ! DIA1, debug instr addr 1
+	stda	%l4, [%l2]0x1 
+	nop
+	nop
+	nop
+	nop
+	ldd	[%sp + (24 + 74) * 4], %l4 ! DDA1, debug data addr 1
+	add	%l2, 8, %l2
+        stda	%l4, [%l2]0x1 
+	nop
+	nop
+	nop
+	nop
+	ldd	[%sp + (24 + 76) * 4], %l4 ! DDV1, debug data value 1
+	add	%l2, 8, %l2
+	stda	%l4, [%l2]0x1 
+	nop
+	nop
+	nop
+	nop
+	ld	[%sp + (24 + 78) * 4], %l4 ! DCR, debug control reg 
+	ld	[%sp + (24 + 79) * 4], %l5 ! DSR, debug control reg 
+	add	%l2, 8, %l2
+	or	%l4, 0x200, %l4
+	sta	%l4, [%l2]0x1
+	add	%l2, 4, %l2
+	sta	%l5, [%l2]0x1
+	nop
+	nop
+	nop
+	nop
+
+	ldd	[%sp + (24 + 64) * 4], %l0 ! Y & PSR
+	ldd	[%sp + (24 + 68) * 4], %l2 ! PC & NPC
+
+	restore				! Ensure that previous window is valid
+	save	%g0, %g0, %g0		!  by causing a window_underflow trap
+
+	mov	%l0, %y
+	mov	%l1, %psr		! Make sure that traps are disabled
+					! for rett
+	sethi	%hi(in_trap_handler), %l4
+	ld	[%lo(in_trap_handler) + %l4], %l5
+	dec	%l5
+	st	%l5, [%lo(in_trap_handler) + %l4]
+
+	jmpl	%l2, %g0		! Restore old PC
+	rett	%l3			! Restore old nPC
+");
+
+/* Convert ch from a hex digit to an int */
+
+static int
+hex(ch)
+     unsigned char ch;
+{
+  if (ch >= 'a' && ch <= 'f')
+    return ch-'a'+10;
+  if (ch >= '0' && ch <= '9')
+    return ch-'0';
+  if (ch >= 'A' && ch <= 'F')
+    return ch-'A'+10;
+  return -1;
+}
+
+/* scan for the sequence $<data>#<checksum>     */
+
+static void
+getpacket(buffer)
+     char *buffer;
+{
+  unsigned char checksum;
+  unsigned char xmitcsum;
+  int i;
+  int count;
+  unsigned char ch;
+
+  do
+    {
+      /* wait around for the start character, ignore all other characters */
+      while ((ch = (getDebugChar() & 0x7f)) != '$') ;
+
+      checksum = 0;
+      xmitcsum = -1;
+
+      count = 0;
+
+      /* now, read until a # or end of buffer is found */
+      while (count < BUFMAX)
+	{
+	  ch = getDebugChar() & 0x7f;
+	  if (ch == '#')
+	    break;
+	  checksum = checksum + ch;
+	  buffer[count] = ch;
+	  count = count + 1;
+	}
+
+      if (count >= BUFMAX)
+	continue;
+
+      buffer[count] = 0;
+
+      if (ch == '#')
+	{
+	  xmitcsum = hex(getDebugChar() & 0x7f) << 4;
+	  xmitcsum |= hex(getDebugChar() & 0x7f);
+#if 0
+	  /* Humans shouldn't have to figure out checksums to type to it. */
+	  putDebugChar ('+');
+	  return;
+#endif
+	  if (checksum != xmitcsum)
+	    putDebugChar('-');	/* failed checksum */
+	  else
+	    {
+	      putDebugChar('+'); /* successful transfer */
+	      /* if a sequence char is present, reply the sequence ID */
+	      if (buffer[2] == ':')
+		{
+		  putDebugChar(buffer[0]);
+		  putDebugChar(buffer[1]);
+		  /* remove sequence chars from buffer */
+		  count = strlen(buffer);
+		  for (i=3; i <= count; i++)
+		    buffer[i-3] = buffer[i];
+		}
+	    }
+	}
+    }
+  while (checksum != xmitcsum);
+}
+
+/* send the packet in buffer.  */
+
+static void
+putpacket(buffer)
+     unsigned char *buffer;
+{
+  unsigned char checksum;
+  int count;
+  unsigned char ch;
+
+  /*  $<packet info>#<checksum>. */
+  do
+    {
+      putDebugChar('$');
+      checksum = 0;
+      count = 0;
+
+      while (ch = buffer[count])
+	{
+	  if (! putDebugChar(ch))
+	    return;
+	  checksum += ch;
+	  count += 1;
+	}
+
+      putDebugChar('#');
+      putDebugChar(hexchars[checksum >> 4]);
+      putDebugChar(hexchars[checksum & 0xf]);
+
+    }
+  while ((getDebugChar() & 0x7f) != '+');
+}
+
+static char remcomInBuffer[BUFMAX];
+static char remcomOutBuffer[BUFMAX];
+
+/* Indicate to caller of mem2hex or hex2mem that there has been an
+   error.  */
+static volatile int mem_err = 0;
+
+/* Convert the memory pointed to by mem into hex, placing result in buf.
+ * Return a pointer to the last char put in buf (null), in case of mem fault,
+ * return 0.
+ * If MAY_FAULT is non-zero, then we will handle memory faults by returning
+ * a 0, else treat a fault like any other fault in the stub.
+ */
+
+static unsigned char *
+mem2hex(mem, buf, count, may_fault)
+     unsigned char *mem;
+     unsigned char *buf;
+     int count;
+     int may_fault;
+{
+  unsigned char ch;
+
+  set_mem_fault_trap(may_fault);
+
+  while (count-- > 0)
+    {
+      ch = *mem++;
+      if (mem_err)
+	return 0;
+      *buf++ = hexchars[ch >> 4];
+      *buf++ = hexchars[ch & 0xf];
+    }
+
+  *buf = 0;
+
+  set_mem_fault_trap(0);
+
+  return buf;
+}
+
+/* convert the hex array pointed to by buf into binary to be placed in mem
+ * return a pointer to the character AFTER the last byte written */
+
+static char *
+hex2mem(buf, mem, count, may_fault)
+     unsigned char *buf;
+     unsigned char *mem;
+     int count;
+     int may_fault;
+{
+  int i;
+  unsigned char ch;
+
+  set_mem_fault_trap(may_fault);
+
+  for (i=0; i<count; i++)
+    {
+      ch = hex(*buf++) << 4;
+      ch |= hex(*buf++);
+      *mem++ = ch;
+      if (mem_err)
+	return 0;
+    }
+
+  set_mem_fault_trap(0);
+
+  return mem;
+}
+
+/* This table contains the mapping between SPARC hardware trap types, and
+   signals, which are primarily what GDB understands.  It also indicates
+   which hardware traps we need to commandeer when initializing the stub. */
+
+static struct hard_trap_info
+{
+  unsigned char tt;		/* Trap type code for SPARClite */
+  unsigned char signo;		/* Signal that we map this trap into */
+} hard_trap_info[] = {
+  {1, SIGSEGV},			/* instruction access error */
+  {2, SIGILL},			/* privileged instruction */
+  {3, SIGILL},			/* illegal instruction */
+  {4, SIGEMT},			/* fp disabled */
+  {36, SIGEMT},			/* cp disabled */
+  {7, SIGBUS},			/* mem address not aligned */
+  {9, SIGSEGV},			/* data access exception */
+  {10, SIGEMT},			/* tag overflow */
+  {128+1, SIGTRAP},		/* ta 1 - normal breakpoint instruction */
+  {255, SIGTRAP},		/* hardware breakpoint */
+  {0, 0}			/* Must be last */
+};
+
+/* Set up exception handlers for tracing and breakpoints */
+
+void
+set_debug_traps()
+{
+  struct hard_trap_info *ht;
+
+  for (ht = hard_trap_info; ht->tt && ht->signo; ht++)
+    exceptionHandler(ht->tt, trap_low);
+
+  /* In case GDB is started before us, ack any packets (presumably
+     "$?#xx") sitting there.  */
+
+  putDebugChar ('+');
+
+  initialized = 1;
+}
+
+asm ("
+! Trap handler for memory errors.  This just sets mem_err to be non-zero.  It
+! assumes that %l1 is non-zero.  This should be safe, as it is doubtful that
+! 0 would ever contain code that could mem fault.  This routine will skip
+! past the faulting instruction after setting mem_err.
+
+	.text
+	.align 4
+
+" STRINGSYM(fltr_set_mem_err) ":
+	sethi %hi(" STRINGSYM(mem_err) "), %l0
+	st %l1, [%l0 + %lo(" STRINGSYM(mem_err) ")]
+	jmpl %l2, %g0
+	rett %l2+4
+");
+
+static void
+set_mem_fault_trap(enable)
+     int enable;
+{
+  extern void fltr_set_mem_err();
+  mem_err = 0;
+
+  if (enable)
+    exceptionHandler(9, fltr_set_mem_err);
+  else
+    exceptionHandler(9, trap_low);
+}
+
+asm ("
+	.text
+	.align 4
+
+" STRINGSYM(dummy_hw_breakpoint) ":
+	jmpl %l2, %g0
+	rett %l2+4
+	nop
+	nop
+");
+
+static void
+set_hw_breakpoint_trap(enable)
+     int enable;
+{
+  extern void dummy_hw_breakpoint();
+
+  if (enable)
+    exceptionHandler(255, dummy_hw_breakpoint);
+  else
+    exceptionHandler(255, trap_low);
+}
+
+static void
+get_in_break_mode()
+{
+  set_hw_breakpoint_trap(1);
+
+  asm("
+        sethi   %hi(0xff10), %l4
+        or      %l4, %lo(0xff10), %l4
+	sta 	%g0, [%l4]0x1	
+	nop
+	nop
+	nop
+      ");
+
+  set_hw_breakpoint_trap(0);
+}
+
+/* Convert the SPARC hardware trap type code to a unix signal number. */
+
+static int
+computeSignal(tt)
+     int tt;
+{
+  struct hard_trap_info *ht;
+
+  for (ht = hard_trap_info; ht->tt && ht->signo; ht++)
+    if (ht->tt == tt)
+      return ht->signo;
+
+  return SIGHUP;		/* default for things we don't know about */
+}
+
+/*
+ * While we find nice hex chars, build an int.
+ * Return number of chars processed.
+ */
+
+static int
+hexToInt(char **ptr, int *intValue)
+{
+  int numChars = 0;
+  int hexValue;
+
+  *intValue = 0;
+
+  while (**ptr)
+    {
+      hexValue = hex(**ptr);
+      if (hexValue < 0)
+	break;
+
+      *intValue = (*intValue << 4) | hexValue;
+      numChars ++;
+
+      (*ptr)++;
+    }
+
+  return (numChars);
+}
+
+/* Replacement for outbyte that sends a packet to GDB containing
+   the character to be output.  */
+
+static void
+outbyte_stub (int c)
+{
+  static char buf[4];
+
+  buf[0] = 'O';
+  buf[1] = hexchars[(c >> 4) & 0xf];
+  buf[2] = hexchars[c % 16];
+  buf[3] = 0;
+  putpacket (buf);
+}
+
+
+/*
+ * This function does all command procesing for interfacing to gdb.  It
+ * returns 1 if you should skip the instruction at the trap address, 0
+ * otherwise.
+ */
+
+
+static void
+handle_exception (registers)
+     unsigned long *registers;
+{
+  int tt;			/* Trap type */
+  int sigval;
+  int addr;
+  int length;
+  char *ptr;
+  unsigned long *sp;
+  unsigned long dsr;
+
+/* First, we must force all of the windows to be spilled out */
+
+  asm("	save %sp, -64, %sp
+	save %sp, -64, %sp
+	save %sp, -64, %sp
+	save %sp, -64, %sp
+	save %sp, -64, %sp
+	save %sp, -64, %sp
+	save %sp, -64, %sp
+	save %sp, -64, %sp
+	restore
+	restore
+	restore
+	restore
+	restore
+	restore
+	restore
+	restore
+");
+
+  if (registers[PC] == (unsigned long)breakinst)
+    {
+      registers[PC] = registers[NPC];
+      registers[NPC] += 4;
+    }
+  sp = (unsigned long *)registers[SP];
+
+  dsr = (unsigned long)registers[DSR];
+  if (dsr & 0x3c)
+    {
+      tt = 255;
+    }
+  else
+    {
+      tt = (registers[TBR] >> 4) & 0xff;
+    }
+
+  /* reply to host that an exception has occurred */
+  sigval = computeSignal(tt);
+  ptr = remcomOutBuffer;
+
+  *ptr++ = 'T';
+  *ptr++ = hexchars[sigval >> 4];
+  *ptr++ = hexchars[sigval & 0xf];
+
+  *ptr++ = hexchars[PC >> 4];
+  *ptr++ = hexchars[PC & 0xf];
+  *ptr++ = ':';
+  ptr = mem2hex((char *)&registers[PC], ptr, 4, 0);
+  *ptr++ = ';';
+
+  *ptr++ = hexchars[FP >> 4];
+  *ptr++ = hexchars[FP & 0xf];
+  *ptr++ = ':';
+  ptr = mem2hex(sp + 8 + 6, ptr, 4, 0); /* FP */
+  *ptr++ = ';';
+
+  *ptr++ = hexchars[SP >> 4];
+  *ptr++ = hexchars[SP & 0xf];
+  *ptr++ = ':';
+  ptr = mem2hex((char *)&sp, ptr, 4, 0);
+  *ptr++ = ';';
+
+  *ptr++ = hexchars[NPC >> 4];
+  *ptr++ = hexchars[NPC & 0xf];
+  *ptr++ = ':';
+  ptr = mem2hex((char *)&registers[NPC], ptr, 4, 0);
+  *ptr++ = ';';
+
+  *ptr++ = hexchars[O7 >> 4];
+  *ptr++ = hexchars[O7 & 0xf];
+  *ptr++ = ':';
+  ptr = mem2hex((char *)&registers[O7], ptr, 4, 0);
+  *ptr++ = ';';
+
+  *ptr++ = 0;
+
+  putpacket(remcomOutBuffer);
+
+  __outbyte_hook = outbyte_stub;
+
+  while (1)
+    {
+      remcomOutBuffer[0] = 0;
+
+      getpacket(remcomInBuffer);
+      switch (remcomInBuffer[0])
+	{
+	case '?':
+	  remcomOutBuffer[0] = 'S';
+	  remcomOutBuffer[1] = hexchars[sigval >> 4];
+	  remcomOutBuffer[2] = hexchars[sigval & 0xf];
+	  remcomOutBuffer[3] = 0;
+	  break;
+
+	case 'd':
+				/* toggle debug flag */
+	  break;
+
+	case 'g':		/* return the value of the CPU registers */
+	  {
+	    ptr = remcomOutBuffer;
+	    ptr = mem2hex((char *)registers, ptr, 16 * 4, 0); /* G & O regs */
+	    ptr = mem2hex(sp + 0, ptr, 16 * 4, 0); /* L & I regs */
+	    memset(ptr, '0', 32 * 8); /* Floating point */
+	    ptr = mem2hex((char *)&registers[Y],
+		    ptr + 32 * 4 * 2,
+		    8 * 4,
+		    0);		/* Y, PSR, WIM, TBR, PC, NPC, FPSR, CPSR */
+	    mem2hex((char *)&registers[DIA1], ptr,
+		8 * 4, 0);    /* DIA1, DIA2, DDA1, DDA2, DDV1, DDV2, DCR, DSR */
+	  }
+	  break;
+
+	case 'G':	   /* set the value of the CPU registers - return OK */
+	  {
+	    unsigned long *newsp, psr;
+
+	    psr = registers[PSR];
+
+	    ptr = &remcomInBuffer[1];
+	    hex2mem(ptr, (char *)registers, 16 * 4, 0); /* G & O regs */
+	    hex2mem(ptr + 16 * 4 * 2, sp + 0, 16 * 4, 0); /* L & I regs */
+	    hex2mem(ptr + 64 * 4 * 2, (char *)&registers[Y],
+		8 * 4, 0);    /* Y, PSR, WIM, TBR, PC, NPC, FPSR, CPSR */
+	    hex2mem(ptr + 72 * 4 * 2, (char *)&registers[DIA1],
+		8 * 4, 0);    /* DIA1, DIA2, DDA1, DDA2, DDV1, DDV2, DCR, DSR */
+
+	    /* See if the stack pointer has moved.  If so, then copy the saved
+	       locals and ins to the new location.  This keeps the window
+	       overflow and underflow routines happy.  */
+
+	    newsp = (unsigned long *)registers[SP];
+	    if (sp != newsp)
+	      sp = memcpy(newsp, sp, 16 * 4);
+
+	    /* Don't allow CWP to be modified. */
+
+	    if (psr != registers[PSR])
+	      registers[PSR] = (psr & 0x1f) | (registers[PSR] & ~0x1f);
+
+	    strcpy(remcomOutBuffer,"OK");
+	  }
+	  break;
+
+	case 'm':	  /* mAA..AA,LLLL  Read LLLL bytes at address AA..AA */
+	  /* Try to read %x,%x.  */
+
+	  ptr = &remcomInBuffer[1];
+
+	  if (hexToInt(&ptr, &addr)
+	      && *ptr++ == ','
+	      && hexToInt(&ptr, &length))
+	    {
+	      if (mem2hex((char *)addr, remcomOutBuffer, length, 1))
+		break;
+
+	      strcpy (remcomOutBuffer, "E03");
+	    }
+	  else
+	    strcpy(remcomOutBuffer,"E01");
+	  break;
+
+	case 'M': /* MAA..AA,LLLL: Write LLLL bytes at address AA.AA return OK */
+	  /* Try to read '%x,%x:'.  */
+
+	  ptr = &remcomInBuffer[1];
+
+	  if (hexToInt(&ptr, &addr)
+	      && *ptr++ == ','
+	      && hexToInt(&ptr, &length)
+	      && *ptr++ == ':')
+	    {
+	      if (hex2mem(ptr, (char *)addr, length, 1))
+		strcpy(remcomOutBuffer, "OK");
+	      else
+		strcpy(remcomOutBuffer, "E03");
+	    }
+	  else
+	    strcpy(remcomOutBuffer, "E02");
+	  break;
+
+	case 'c':    /* cAA..AA    Continue at address AA..AA(optional) */
+	  /* try to read optional parameter, pc unchanged if no parm */
+
+	  ptr = &remcomInBuffer[1];
+	  if (hexToInt(&ptr, &addr))
+	    {
+	      registers[PC] = addr;
+	      registers[NPC] = addr + 4;
+	    }
+
+/* Need to flush the instruction cache here, as we may have deposited a
+   breakpoint, and the icache probably has no way of knowing that a data ref to
+   some location may have changed something that is in the instruction cache.
+ */
+
+	  flush_i_cache();
+	  return;
+
+	  /* kill the program */
+	case 'k' :		/* do nothing */
+	  break;
+#if 0
+	case 't':		/* Test feature */
+	  asm (" std %f30,[%sp]");
+	  break;
+#endif
+	case 'r':		/* Reset */
+	  asm ("call 0
+		nop ");
+	  break;
+
+#if 0
+Disabled until we can unscrew this properly
+
+	case 'b':	  /* bBB...  Set baud rate to BB... */
+	  {
+	    int baudrate;
+	    extern void set_timer_3();
+
+	    ptr = &remcomInBuffer[1];
+	    if (!hexToInt(&ptr, &baudrate))
+	      {
+		strcpy(remcomOutBuffer,"B01");
+		break;
+	      }
+
+	    /* Convert baud rate to uart clock divider */
+	    switch (baudrate)
+	      {
+	      case 38400:
+		baudrate = 16;
+		break;
+	      case 19200:
+		baudrate = 33;
+		break;
+	      case 9600:
+		baudrate = 65;
+		break;
+	      default:
+		strcpy(remcomOutBuffer,"B02");
+		goto x1;
+	      }
+
+	    putpacket("OK");	/* Ack before changing speed */
+	    set_timer_3(baudrate); /* Set it */
+	  }
+x1:	  break;
+#endif
+	}			/* switch */
+
+      /* reply to the request */
+      putpacket(remcomOutBuffer);
+    }
+}
+
+/* This function will generate a breakpoint exception.  It is used at the
+   beginning of a program to sync up with a debugger and can be used
+   otherwise as a quick means to stop program execution and "break" into
+   the debugger. */
+
+void
+breakpoint()
+{
+  if (!initialized)
+    return;
+
+  asm("	.globl " STRINGSYM(breakinst) "
+
+	" STRINGSYM(breakinst) ": ta 1
+      ");
+}
+
+static void
+hw_breakpoint()
+{
+  asm("
+      ta 127
+      ");
+}
diff --git a/libgloss/sparc/sparclet-stub.c b/libgloss/sparc/sparclet-stub.c
new file mode 100644
index 0000000..a462128
--- /dev/null
+++ b/libgloss/sparc/sparclet-stub.c
@@ -0,0 +1,1233 @@
+/****************************************************************************
+
+		THIS SOFTWARE IS NOT COPYRIGHTED
+
+   HP offers the following for use in the public domain.  HP makes no
+   warranty with regard to the software or it's performance and the
+   user accepts the software "AS IS" with all faults.
+
+   HP DISCLAIMS ANY WARRANTIES, EXPRESS OR IMPLIED, WITH REGARD
+   TO THIS SOFTWARE INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+   OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+
+****************************************************************************/
+
+/****************************************************************************
+ *  Header: remcom.c,v 1.34 91/03/09 12:29:49 glenne Exp $
+ *
+ *  Module name: remcom.c $
+ *  Revision: 1.34 $
+ *  Date: 91/03/09 12:29:49 $
+ *  Contributor:     Lake Stevens Instrument Division$
+ *
+ *  Description:     low level support for gdb debugger. $
+ *
+ *  Considerations:  only works on target hardware $
+ *
+ *  Written by:      Glenn Engel $
+ *  ModuleState:     Experimental $
+ *
+ *  NOTES:           See Below $
+ *
+ *  Modified for SPARC by Stu Grossman, Cygnus Support.
+ *  Based on sparc-stub.c, it's modified for SPARClite Debug Unit hardware
+ *  breakpoint support to create sparclite-stub.c, by Kung Hsu, Cygnus Support.
+ *
+ *  This code has been extensively tested on the Fujitsu SPARClite demo board.
+ *
+ *  To enable debugger support, two things need to happen.  One, a
+ *  call to set_debug_traps() is necessary in order to allow any breakpoints
+ *  or error conditions to be properly intercepted and reported to gdb.
+ *  Two, a breakpoint needs to be generated to begin communication.  This
+ *  is most easily accomplished by a call to breakpoint().  Breakpoint()
+ *  simulates a breakpoint by executing a trap #1.
+ *
+ *************
+ *
+ *    The following gdb commands are supported:
+ *
+ * command          function                               Return value
+ *
+ *    g             return the value of the CPU registers  hex data or ENN
+ *    G             set the value of the CPU registers     OK or ENN
+ *    P             set the value of a single CPU register OK or P01 (???)
+ *
+ *    mAA..AA,LLLL  Read LLLL bytes at address AA..AA      hex data or ENN
+ *    MAA..AA,LLLL: Write LLLL bytes at address AA.AA      OK or ENN
+ *
+ *    c             Resume at current address              SNN   ( signal NN)
+ *    cAA..AA       Continue at address AA..AA             SNN
+ *
+ *    s             Step one instruction                   SNN
+ *    sAA..AA       Step one instruction from AA..AA       SNN
+ *
+ *    k             kill
+ *
+ *    ?             What was the last sigval ?             SNN   (signal NN)
+ *
+ *    bBB..BB	    Set baud rate to BB..BB		   OK or BNN, then sets
+ *							   baud rate
+ *
+ * All commands and responses are sent with a packet which includes a
+ * checksum.  A packet consists of
+ *
+ * $<packet info>#<checksum>.
+ *
+ * where
+ * <packet info> :: <characters representing the command or response>
+ * <checksum>    :: <two hex digits computed as modulo 256 sum of <packetinfo>>
+ *
+ * When a packet is received, it is first acknowledged with either '+' or '-'.
+ * '+' indicates a successful transfer.  '-' indicates a failed transfer.
+ *
+ * Example:
+ *
+ * Host:                  Reply:
+ * $m0,10#2a               +$00010203040506070809101112131415#42
+ *
+ ****************************************************************************/
+
+#include <string.h>
+#include <signal.h>
+
+/************************************************************************
+ *
+ * external low-level support routines
+ */
+
+extern putDebugChar();   /* write a single character      */
+extern getDebugChar();   /* read and return a single char */
+
+/************************************************************************/
+/* BUFMAX defines the maximum number of characters in inbound/outbound buffers*/
+/* at least NUMREGBYTES*2 are needed for register packets */
+#define BUFMAX 2048
+
+static int initialized = 0;	/* !0 means we've been initialized */
+static int remote_debug = 0;	/* turn on verbose debugging */
+
+extern void breakinst();
+void _cprint();
+static void hw_breakpoint();
+static void set_mem_fault_trap();
+static void get_in_break_mode();
+static unsigned char *mem2hex();
+
+static const char hexchars[]="0123456789abcdef";
+
+#define NUMREGS 121
+
+static unsigned long saved_stack_pointer;
+
+/* Number of bytes of registers.  */
+#define NUMREGBYTES (NUMREGS * 4)
+enum regnames { G0, G1, G2, G3, G4, G5, G6, G7,
+		O0, O1, O2, O3, O4, O5, SP, O7,
+		L0, L1, L2, L3, L4, L5, L6, L7,
+		I0, I1, I2, I3, I4, I5, FP, I7,
+
+		F0, F1, F2, F3, F4, F5, F6, F7,
+		F8, F9, F10, F11, F12, F13, F14, F15,
+		F16, F17, F18, F19, F20, F21, F22, F23,
+		F24, F25, F26, F27, F28, F29, F30, F31,
+
+		Y, PSR, WIM, TBR, PC, NPC, FPSR, CPSR,
+		CCSR, CCPR, CCCRCR, CCOR, CCOBR, CCIBR, CCIR, UNUSED1,
+
+		ASR1, ASR15, ASR17, ASR18, ASR19, ASR20, ASR21, ASR22, 
+		/* the following not actually implemented */
+		AWR0,  AWR1,  AWR2,  AWR3,  AWR4,  AWR5,  AWR6,  AWR7,  
+		AWR8,  AWR9,  AWR10, AWR11, AWR12, AWR13, AWR14, AWR15,  
+		AWR16, AWR17, AWR18, AWR19, AWR20, AWR21, AWR22, AWR23,  
+		AWR24, AWR25, AWR26, AWR27, AWR28, AWR29, AWR30, AWR31,  
+		APSR
+};
+
+/***************************  ASSEMBLY CODE MACROS *************************/
+/* 									   */
+
+extern void trap_low();
+
+asm("
+	.reserve trapstack, 1000 * 4, \"bss\", 8
+
+	.data
+	.align	4
+
+in_trap_handler:
+	.word	0
+
+	.text
+	.align 4
+
+! This function is called when any SPARC trap (except window overflow or
+! underflow) occurs.  It makes sure that the invalid register window is still
+! available before jumping into C code.  It will also restore the world if you
+! return from handle_exception.
+!
+! On entry, trap_low expects l1 and l2 to contain pc and npc respectivly.
+
+	.globl _trap_low
+_trap_low:
+	mov	%psr, %l0
+	mov	%wim, %l3
+
+	srl	%l3, %l0, %l4		! wim >> cwp
+	and	%l4, 0xff, %l4		! Mask off windows 28, 29
+	cmp	%l4, 1
+	bne	window_fine		! Branch if not in the invalid window
+	nop
+
+! Handle window overflow
+
+	mov	%g1, %l4		! Save g1, we use it to hold the wim
+	srl	%l3, 1, %g1		! Rotate wim right
+	and	%g1, 0xff, %g1		! Mask off windows 28, 29
+	tst	%g1
+	bg	good_wim		! Branch if new wim is non-zero
+	nop
+
+! At this point, we need to bring a 1 into the high order bit of the wim.
+! Since we don't want to make any assumptions about the number of register
+! windows, we figure it out dynamically so as to setup the wim correctly.
+
+	! The normal way doesn't work on the sparclet as register windows
+	! 28 and 29 are special purpose windows.
+	!not	%g1			! Fill g1 with ones
+	!mov	%g1, %wim		! Fill the wim with ones
+	!nop
+	!nop
+	!nop
+	!mov	%wim, %g1		! Read back the wim
+	!inc	%g1			! Now g1 has 1 just to left of wim
+	!srl	%g1, 1, %g1		! Now put 1 at top of wim
+
+	mov	0x80, %g1		! Hack for sparclet
+
+	! This doesn't work on the sparclet.
+	!mov	%g0, %wim		! Clear wim so that subsequent save
+					!  won't trap
+	andn	%l3, 0xff, %l5		! Clear wim but not windows 28, 29
+	mov	%l5, %wim
+	nop
+	nop
+	nop
+
+good_wim:
+	save	%g0, %g0, %g0		! Slip into next window
+	mov	%g1, %wim		! Install the new wim
+
+	std	%l0, [%sp + 0 * 4]	! save L & I registers
+	std	%l2, [%sp + 2 * 4]
+	std	%l4, [%sp + 4 * 4]
+	std	%l6, [%sp + 6 * 4]
+
+	std	%i0, [%sp + 8 * 4]
+	std	%i2, [%sp + 10 * 4]
+	std	%i4, [%sp + 12 * 4]
+	std	%i6, [%sp + 14 * 4]
+
+	restore				! Go back to trap window.
+	mov	%l4, %g1		! Restore %g1
+
+window_fine:
+	sethi	%hi(in_trap_handler), %l4
+	ld	[%lo(in_trap_handler) + %l4], %l5
+	tst	%l5
+	bg	recursive_trap
+	inc	%l5
+
+	set	trapstack+1000*4, %sp	! Switch to trap stack
+
+recursive_trap:
+	st	%l5, [%lo(in_trap_handler) + %l4]
+	sub	%sp,(16+1+6+1+88)*4,%sp ! Make room for input & locals
+ 					! + hidden arg + arg spill
+					! + doubleword alignment
+					! + registers[121]
+
+	std	%g0, [%sp + (24 + 0) * 4] ! registers[Gx]
+	std	%g2, [%sp + (24 + 2) * 4]
+	std	%g4, [%sp + (24 + 4) * 4]
+	std	%g6, [%sp + (24 + 6) * 4]
+
+	std	%i0, [%sp + (24 + 8) * 4] ! registers[Ox]
+	std	%i2, [%sp + (24 + 10) * 4]
+	std	%i4, [%sp + (24 + 12) * 4]
+	std	%i6, [%sp + (24 + 14) * 4]
+
+	! FP regs (sparclet doesn't have fpu)
+
+	mov	%y, %l4
+	mov	%tbr, %l5
+	st	%l4, [%sp + (24 + 64) * 4] ! Y
+	st	%l0, [%sp + (24 + 65) * 4] ! PSR
+	st	%l3, [%sp + (24 + 66) * 4] ! WIM
+	st	%l5, [%sp + (24 + 67) * 4] ! TBR
+	st	%l1, [%sp + (24 + 68) * 4] ! PC
+	st	%l2, [%sp + (24 + 69) * 4] ! NPC
+					! CPSR and FPSR not impl
+	or	%l0, 0xf20, %l4
+	mov	%l4, %psr		! Turn on traps, disable interrupts
+	nop
+        nop
+        nop
+
+! Save coprocessor state.
+! See SK/demo/hdlc_demo/ldc_swap_context.S.
+
+	mov	%psr, %l0
+	sethi	%hi(0x2000), %l5		! EC bit in PSR
+	or	%l5, %l0, %l5
+	mov	%l5, %psr			! enable coprocessor
+	nop			! 3 nops after write to %psr (needed?)
+	nop
+	nop
+	crdcxt	%ccsr, %l1			! capture CCSR
+	mov	0x6, %l2
+	cwrcxt	%l2, %ccsr	! set CCP state machine for CCFR
+	crdcxt	%ccfr, %l2			! capture CCOR
+	cwrcxt	%l2, %ccfr			! tickle  CCFR
+	crdcxt	%ccfr, %l3			! capture CCOBR
+	cwrcxt	%l3, %ccfr			! tickle  CCFR
+	crdcxt	%ccfr, %l4			! capture CCIBR
+	cwrcxt	%l4, %ccfr			! tickle  CCFR
+	crdcxt	%ccfr, %l5			! capture CCIR
+	cwrcxt	%l5, %ccfr			! tickle  CCFR
+	crdcxt	%ccpr, %l6			! capture CCPR
+	crdcxt	%cccrcr, %l7			! capture CCCRCR
+	st	%l1, [%sp + (24 + 72) * 4]	! save CCSR
+	st	%l2, [%sp + (24 + 75) * 4]	! save CCOR
+	st	%l3, [%sp + (24 + 76) * 4]	! save CCOBR
+	st	%l4, [%sp + (24 + 77) * 4]	! save CCIBR
+	st	%l5, [%sp + (24 + 78) * 4]	! save CCIR
+	st	%l6, [%sp + (24 + 73) * 4]	! save CCPR
+	st	%l7, [%sp + (24 + 74) * 4]	! save CCCRCR
+	mov	%l0, %psr 			! restore original PSR
+	nop			! 3 nops after write to %psr (needed?)
+	nop
+	nop
+
+! End of saving coprocessor state.
+! Save asr regs
+
+! Part of this is silly -- we should not display ASR15 or ASR19 at all.
+
+	sethi	%hi(0x01000000), %l6
+	st	%l6, [%sp + (24 + 81) * 4]	! ASR15 == NOP
+	sethi	%hi(0xdeadc0de), %l6
+	or	%l6, %lo(0xdeadc0de), %l6
+	st	%l6, [%sp + (24 + 84) * 4]	! ASR19 == DEADC0DE
+
+	rd	%asr1, %l4
+	st	%l4, [%sp + (24 + 80) * 4]
+!	rd	%asr15, %l4			! must not read ASR15
+!	st	%l4, [%sp + (24 + 81) * 4]	! (illegal instr trap)
+	rd	%asr17, %l4
+	st	%l4, [%sp + (24 + 82) * 4]
+	rd	%asr18, %l4
+	st	%l4, [%sp + (24 + 83) * 4]
+!	rd	%asr19, %l4			! must not read asr19
+!	st	%l4, [%sp + (24 + 84) * 4]	! (halts the CPU)
+	rd	%asr20, %l4
+	st	%l4, [%sp + (24 + 85) * 4]
+	rd	%asr21, %l4
+	st	%l4, [%sp + (24 + 86) * 4]
+	rd	%asr22, %l4
+	st	%l4, [%sp + (24 + 87) * 4]
+
+! End of saving asr regs
+
+	call	_handle_exception
+	add	%sp, 24 * 4, %o0	! Pass address of registers
+
+! Reload all of the registers that aren't on the stack
+
+	ld	[%sp + (24 + 1) * 4], %g1 ! registers[Gx]
+	ldd	[%sp + (24 + 2) * 4], %g2
+	ldd	[%sp + (24 + 4) * 4], %g4
+	ldd	[%sp + (24 + 6) * 4], %g6
+
+	ldd	[%sp + (24 + 8) * 4], %i0 ! registers[Ox]
+	ldd	[%sp + (24 + 10) * 4], %i2
+	ldd	[%sp + (24 + 12) * 4], %i4
+	ldd	[%sp + (24 + 14) * 4], %i6
+
+	! FP regs (sparclet doesn't have fpu)
+
+! Update the coprocessor registers.
+! See SK/demo/hdlc_demo/ldc_swap_context.S.
+
+	mov	%psr, %l0
+	sethi	%hi(0x2000), %l5		! EC bit in PSR
+	or	%l5, %l0, %l5
+	mov	%l5, %psr			! enable coprocessor
+	nop			! 3 nops after write to %psr (needed?)
+	nop
+	nop
+
+	mov 0x6, %l2
+	cwrcxt	%l2, %ccsr	! set CCP state machine for CCFR
+
+	ld	[%sp + (24 + 72) * 4], %l1	! saved CCSR
+	ld	[%sp + (24 + 75) * 4], %l2	! saved CCOR
+	ld	[%sp + (24 + 76) * 4], %l3	! saved CCOBR
+	ld	[%sp + (24 + 77) * 4], %l4	! saved CCIBR
+	ld	[%sp + (24 + 78) * 4], %l5	! saved CCIR
+	ld	[%sp + (24 + 73) * 4], %l6	! saved CCPR
+	ld	[%sp + (24 + 74) * 4], %l7	! saved CCCRCR
+
+	cwrcxt	%l2, %ccfr			! restore CCOR
+	cwrcxt	%l3, %ccfr			! restore CCOBR
+	cwrcxt	%l4, %ccfr			! restore CCIBR
+	cwrcxt	%l5, %ccfr			! restore CCIR
+	cwrcxt	%l6, %ccpr			! restore CCPR
+	cwrcxt	%l7, %cccrcr			! restore CCCRCR
+	cwrcxt	%l1, %ccsr			! restore CCSR
+
+	mov %l0, %psr				! restore PSR
+	nop		! 3 nops after write to %psr (needed?)
+	nop
+	nop
+
+! End of coprocessor handling stuff.
+! Update asr regs
+
+	ld	[%sp + (24 + 80) * 4], %l4
+	wr	%l4, %asr1
+!	ld	[%sp + (24 + 81) * 4], %l4	! can't write asr15
+!	wr	%l4, %asr15
+	ld	[%sp + (24 + 82) * 4], %l4
+	wr	%l4, %asr17
+	ld	[%sp + (24 + 83) * 4], %l4
+	wr	%l4, %asr18
+!	ld	[%sp + (24 + 84) * 4], %l4	! can't write asr19
+!	wr	%l4, %asr19
+!	ld	[%sp + (24 + 85) * 4], %l4	! can't write asr20
+!	wr	%l4, %asr20
+!	ld	[%sp + (24 + 86) * 4], %l4	! can't write asr21
+!	wr	%l4, %asr21
+	ld	[%sp + (24 + 87) * 4], %l4
+	wr	%l4, %asr22
+
+! End of restoring asr regs
+
+
+	ldd	[%sp + (24 + 64) * 4], %l0 ! Y & PSR
+	ldd	[%sp + (24 + 68) * 4], %l2 ! PC & NPC
+
+	restore				! Ensure that previous window is valid
+	save	%g0, %g0, %g0		!  by causing a window_underflow trap
+
+	mov	%l0, %y
+	mov	%l1, %psr		! Make sure that traps are disabled
+					! for rett
+	nop	! 3 nops after write to %psr (needed?)
+	nop
+	nop
+
+	sethi	%hi(in_trap_handler), %l4
+	ld	[%lo(in_trap_handler) + %l4], %l5
+	dec	%l5
+	st	%l5, [%lo(in_trap_handler) + %l4]
+
+	jmpl	%l2, %g0		! Restore old PC
+	rett	%l3			! Restore old nPC
+");
+
+/* Convert ch from a hex digit to an int */
+
+static int
+hex(ch)
+     unsigned char ch;
+{
+  if (ch >= 'a' && ch <= 'f')
+    return ch-'a'+10;
+  if (ch >= '0' && ch <= '9')
+    return ch-'0';
+  if (ch >= 'A' && ch <= 'F')
+    return ch-'A'+10;
+  return -1;
+}
+
+/* scan for the sequence $<data>#<checksum>     */
+
+static void
+getpacket(buffer)
+     char *buffer;
+{
+  unsigned char checksum;
+  unsigned char xmitcsum;
+  int i;
+  int count;
+  unsigned char ch;
+
+  do
+    {
+      /* wait around for the start character, ignore all other characters */
+      while ((ch = (getDebugChar() & 0x7f)) != '$') 
+	;
+
+      checksum = 0;
+      xmitcsum = -1;
+
+      count = 0;
+
+      /* now, read until a # or end of buffer is found */
+      while (count < BUFMAX)
+	{
+	  ch = getDebugChar() & 0x7f;
+	  if (ch == '#')
+	    break;
+	  checksum = checksum + ch;
+	  buffer[count] = ch;
+	  count = count + 1;
+	}
+
+      if (count >= BUFMAX)
+	continue;
+
+      buffer[count] = 0;
+
+      if (ch == '#')
+	{
+	  xmitcsum = hex(ch = getDebugChar() & 0x7f) << 4;
+	  xmitcsum |= hex(ch = getDebugChar() & 0x7f);
+
+	  if (checksum != xmitcsum)
+	    putDebugChar('-');	/* failed checksum */
+	  else
+	    {
+	      putDebugChar('+'); /* successful transfer */
+	      /* if a sequence char is present, reply the sequence ID */
+	      if (buffer[2] == ':')
+		{
+		  putDebugChar(buffer[0]);
+		  putDebugChar(buffer[1]);
+		  /* remove sequence chars from buffer */
+		  count = strlen(buffer);
+		  for (i=3; i <= count; i++)
+		    buffer[i-3] = buffer[i];
+		}
+	    }
+	}
+    }
+  while (checksum != xmitcsum);
+}
+
+/* send the packet in buffer.  */
+
+static void
+putpacket(buffer)
+     unsigned char *buffer;
+{
+  unsigned char checksum;
+  int count;
+  unsigned char ch;
+
+  /*  $<packet info>#<checksum>. */
+  do
+    {
+      putDebugChar('$');
+      checksum = 0;
+      count = 0;
+
+      while (ch = buffer[count])
+	{
+	  if (! putDebugChar(ch))
+	    return;
+	  checksum += ch;
+	  count += 1;
+	}
+
+      putDebugChar('#');
+      putDebugChar(hexchars[checksum >> 4]);
+      putDebugChar(hexchars[checksum & 0xf]);
+
+    }
+  while ((getDebugChar() & 0x7f) != '+');
+}
+
+static char remcomInBuffer[BUFMAX];
+static char remcomOutBuffer[BUFMAX];
+
+/* Indicate to caller of mem2hex or hex2mem that there has been an
+   error.  */
+static volatile int mem_err = 0;
+
+/* Convert the memory pointed to by mem into hex, placing result in buf.
+ * Return a pointer to the last char put in buf (null), in case of mem fault,
+ * return 0.
+ * If MAY_FAULT is non-zero, then we will handle memory faults by returning
+ * a 0, else treat a fault like any other fault in the stub.
+ */
+
+static unsigned char *
+mem2hex(mem, buf, count, may_fault)
+     unsigned char *mem;
+     unsigned char *buf;
+     int count;
+     int may_fault;
+{
+  unsigned char ch;
+
+  set_mem_fault_trap(may_fault);
+
+  while (count-- > 0)
+    {
+      ch = *mem++;
+      if (mem_err)
+	return 0;
+      *buf++ = hexchars[ch >> 4];
+      *buf++ = hexchars[ch & 0xf];
+    }
+
+  *buf = 0;
+
+  set_mem_fault_trap(0);
+
+  return buf;
+}
+
+/* convert the hex array pointed to by buf into binary to be placed in mem
+ * return a pointer to the character AFTER the last byte written */
+
+static char *
+hex2mem(buf, mem, count, may_fault)
+     unsigned char *buf;
+     unsigned char *mem;
+     int count;
+     int may_fault;
+{
+  int i;
+  unsigned char ch;
+
+  set_mem_fault_trap(may_fault);
+
+  for (i=0; i<count; i++)
+    {
+      ch = hex(*buf++) << 4;
+      ch |= hex(*buf++);
+      *mem++ = ch;
+      if (mem_err)
+	return 0;
+    }
+
+  set_mem_fault_trap(0);
+
+  return mem;
+}
+
+/* This table contains the mapping between SPARC hardware trap types, and
+   signals, which are primarily what GDB understands.  It also indicates
+   which hardware traps we need to commandeer when initializing the stub. */
+
+static struct hard_trap_info
+{
+  unsigned char tt;		/* Trap type code for SPARClite */
+  unsigned char signo;		/* Signal that we map this trap into */
+} hard_trap_info[] = {
+  {1, SIGSEGV},			/* instruction access exception */
+  {0x3b, SIGSEGV},		/* instruction access error */
+  {2, SIGILL},			/* illegal    instruction */
+  {3, SIGILL},			/* privileged instruction */
+  {4, SIGEMT},			/* fp disabled */
+  {0x24, SIGEMT},		/* cp disabled */
+  {7, SIGBUS},			/* mem address not aligned */
+  {0x29, SIGSEGV},		/* data access exception */
+  {10, SIGEMT},			/* tag overflow */
+  {128+1, SIGTRAP},		/* ta 1 - normal breakpoint instruction */
+  {0, 0}			/* Must be last */
+};
+
+/* Set up exception handlers for tracing and breakpoints */
+
+void
+set_debug_traps()
+{
+  struct hard_trap_info *ht;
+
+  for (ht = hard_trap_info; ht->tt && ht->signo; ht++)
+    exceptionHandler(ht->tt, trap_low);
+
+  /* In case GDB is started before us, ack any packets (presumably
+     "$?#xx") sitting there.  */
+  putDebugChar ('+');
+
+  initialized = 1;
+}
+
+asm ("
+! Trap handler for memory errors.  This just sets mem_err to be non-zero.  It
+! assumes that %l1 is non-zero.  This should be safe, as it is doubtful that
+! 0 would ever contain code that could mem fault.  This routine will skip
+! past the faulting instruction after setting mem_err.
+
+	.text
+	.align 4
+
+_fltr_set_mem_err:
+	sethi %hi(_mem_err), %l0
+	st %l1, [%l0 + %lo(_mem_err)]
+	jmpl %l2, %g0
+	rett %l2+4
+");
+
+static void
+set_mem_fault_trap(enable)
+     int enable;
+{
+  extern void fltr_set_mem_err();
+  mem_err = 0;
+
+  if (enable)
+    exceptionHandler(0x29, fltr_set_mem_err);
+  else
+    exceptionHandler(0x29, trap_low);
+}
+
+asm ("
+	.text
+	.align 4
+
+_dummy_hw_breakpoint:
+	jmpl %l2, %g0
+	rett %l2+4
+	nop
+	nop
+");
+
+static void
+set_hw_breakpoint_trap(enable)
+     int enable;
+{
+  extern void dummy_hw_breakpoint();
+
+  if (enable)
+    exceptionHandler(255, dummy_hw_breakpoint);
+  else
+    exceptionHandler(255, trap_low);
+}
+
+static void
+get_in_break_mode()
+{
+#if 0
+  int x;
+  mesg("get_in_break_mode, sp = ");
+  phex(&x);
+#endif
+  set_hw_breakpoint_trap(1);
+
+  asm("
+        sethi   %hi(0xff10), %l4
+        or      %l4, %lo(0xff10), %l4
+	sta 	%g0, [%l4]0x1	
+	nop
+	nop
+	nop
+      ");
+
+  set_hw_breakpoint_trap(0);
+}
+
+/* Convert the SPARC hardware trap type code to a unix signal number. */
+
+static int
+computeSignal(tt)
+     int tt;
+{
+  struct hard_trap_info *ht;
+
+  for (ht = hard_trap_info; ht->tt && ht->signo; ht++)
+    if (ht->tt == tt)
+      return ht->signo;
+
+  return SIGHUP;		/* default for things we don't know about */
+}
+
+/*
+ * While we find nice hex chars, build an int.
+ * Return number of chars processed.
+ */
+
+static int
+hexToInt(char **ptr, int *intValue)
+{
+  int numChars = 0;
+  int hexValue;
+
+  *intValue = 0;
+
+  while (**ptr)
+    {
+      hexValue = hex(**ptr);
+      if (hexValue < 0)
+	break;
+
+      *intValue = (*intValue << 4) | hexValue;
+      numChars ++;
+
+      (*ptr)++;
+    }
+
+  return (numChars);
+}
+
+/*
+ * This function does all command procesing for interfacing to gdb.  It
+ * returns 1 if you should skip the instruction at the trap address, 0
+ * otherwise.
+ */
+
+static void
+handle_exception (registers)
+     unsigned long *registers;
+{
+  int tt;			/* Trap type */
+  int sigval;
+  int addr;
+  int length;
+  char *ptr;
+  unsigned long *sp;
+  unsigned long dsr;
+
+/* First, we must force all of the windows to be spilled out */
+
+  asm("
+	! Ugh.  sparclet has broken save
+	!save %sp, -64, %sp
+	save
+	add %fp,-64,%sp
+	!save %sp, -64, %sp
+	save
+	add %fp,-64,%sp
+	!save %sp, -64, %sp
+	save
+	add %fp,-64,%sp
+	!save %sp, -64, %sp
+	save
+	add %fp,-64,%sp
+	!save %sp, -64, %sp
+	save
+	add %fp,-64,%sp
+	!save %sp, -64, %sp
+	save
+	add %fp,-64,%sp
+	!save %sp, -64, %sp
+	save
+	add %fp,-64,%sp
+	!save %sp, -64, %sp
+	save
+	add %fp,-64,%sp
+	restore
+	restore
+	restore
+	restore
+	restore
+	restore
+	restore
+	restore
+");
+
+  if (registers[PC] == (unsigned long)breakinst)
+    {
+      registers[PC] = registers[NPC];
+      registers[NPC] += 4;
+    }
+  sp = (unsigned long *)registers[SP];
+
+  tt = (registers[TBR] >> 4) & 0xff;
+
+  /* reply to host that an exception has occurred */
+  sigval = computeSignal(tt);
+  ptr = remcomOutBuffer;
+
+  *ptr++ = 'T';
+  *ptr++ = hexchars[sigval >> 4];
+  *ptr++ = hexchars[sigval & 0xf];
+
+  *ptr++ = hexchars[PC >> 4];
+  *ptr++ = hexchars[PC & 0xf];
+  *ptr++ = ':';
+  ptr = mem2hex((char *)&registers[PC], ptr, 4, 0);
+  *ptr++ = ';';
+
+  *ptr++ = hexchars[FP >> 4];
+  *ptr++ = hexchars[FP & 0xf];
+  *ptr++ = ':';
+  ptr = mem2hex(sp + 8 + 6, ptr, 4, 0); /* FP */
+  *ptr++ = ';';
+
+  *ptr++ = hexchars[SP >> 4];
+  *ptr++ = hexchars[SP & 0xf];
+  *ptr++ = ':';
+  ptr = mem2hex((char *)&sp, ptr, 4, 0);
+  *ptr++ = ';';
+
+  *ptr++ = hexchars[NPC >> 4];
+  *ptr++ = hexchars[NPC & 0xf];
+  *ptr++ = ':';
+  ptr = mem2hex((char *)&registers[NPC], ptr, 4, 0);
+  *ptr++ = ';';
+
+  *ptr++ = hexchars[O7 >> 4];
+  *ptr++ = hexchars[O7 & 0xf];
+  *ptr++ = ':';
+  ptr = mem2hex((char *)&registers[O7], ptr, 4, 0);
+  *ptr++ = ';';
+
+  *ptr++ = 0;
+
+  putpacket(remcomOutBuffer);
+
+  while (1)
+    {
+      remcomOutBuffer[0] = 0;
+
+      getpacket(remcomInBuffer);
+      switch (remcomInBuffer[0])
+	{
+	case '?':
+	  remcomOutBuffer[0] = 'S';
+	  remcomOutBuffer[1] = hexchars[sigval >> 4];
+	  remcomOutBuffer[2] = hexchars[sigval & 0xf];
+	  remcomOutBuffer[3] = 0;
+	  break;
+
+	case 'd':
+	  remote_debug = !(remote_debug);	/* toggle debug flag */
+	  break;
+
+	case 'g':		/* return the value of the CPU registers */
+	  {
+	    ptr = remcomOutBuffer;
+	    ptr = mem2hex((char *)registers, ptr, 16 * 4, 0); /* G & O regs */
+	    ptr = mem2hex(sp + 0, ptr, 16 * 4, 0); /* L & I regs */
+	    memset(ptr, '0', 32 * 8); /* Floating point */
+	    ptr = mem2hex((char *)&registers[Y],
+		    ptr + 32 * 4 * 2,
+		    8 * 4,
+		    0); /* Y, PSR, WIM, TBR, PC, NPC, FPSR, CPSR */
+	    ptr = mem2hex((char *)&registers[CCSR],
+		    ptr,
+		    8 * 4,
+		    0); /* CCSR, CCPR, CCCRCR, CCOR, CCOBR, CCIBR, CCIR */
+	    ptr = mem2hex((char *)&registers[ASR1],
+		    ptr,
+		    8 * 4,
+		    0); /* ASR1,ASR15,ASR17,ASR18,ASR19,ASR20,ASR21,ASR22 */
+#if 0 /* not implemented */
+	    ptr = mem2hex((char *) &registers[AWR0], 
+		    ptr, 
+		    32 * 4, 
+		    0); /* Alternate Window Registers */
+#endif
+	  }
+	  break;
+
+	case 'G':	/* set value of all the CPU registers - return OK */
+	case 'P':	/* set value of one CPU register      - return OK */
+	  {
+	    unsigned long *newsp, psr;
+
+	    psr = registers[PSR];
+
+	    ptr = &remcomInBuffer[1];
+
+	    if (remcomInBuffer[0] == 'P')	/* do a single register */
+	      {
+		int regno;
+ 
+                if (hexToInt (&ptr, &regno)
+                    && *ptr++ == '=')
+                  if (regno >= L0 && regno <= I7)
+                    hex2mem (ptr, sp + regno - L0, 4, 0);
+                  else
+                    hex2mem (ptr, (char *)&registers[regno], 4, 0);
+                else
+                  {
+                    strcpy (remcomOutBuffer, "P01");
+                    break;
+                  }
+	      }
+	    else
+	      {
+		hex2mem(ptr, (char *)registers, 16 * 4, 0); /* G & O regs */
+		hex2mem(ptr + 16 * 4 * 2, sp + 0, 16 * 4, 0); /* L & I regs */
+		hex2mem(ptr + 64 * 4 * 2, (char *)&registers[Y],
+			8 * 4, 0); /* Y,PSR,WIM,TBR,PC,NPC,FPSR,CPSR */
+		hex2mem(ptr + 72 * 4 * 2, (char *)&registers[CCSR],
+			8 * 4, 0); /* CCSR,CCPR,CCCRCR,CCOR,CCOBR,CCIBR,CCIR */
+		hex2mem(ptr + 80 * 4 * 2, (char *)&registers[ASR1],
+			8 * 4, 0); /* ASR1 ... ASR22 */
+#if 0 /* not implemented */
+		hex2mem(ptr + 88 * 4 * 2, (char *)&registers[AWR0],
+			8 * 4, 0); /* Alternate Window Registers */
+#endif
+	      }
+	    /* See if the stack pointer has moved.  If so, then copy the saved
+	       locals and ins to the new location.  This keeps the window
+	       overflow and underflow routines happy.  */
+
+	    newsp = (unsigned long *)registers[SP];
+	    if (sp != newsp)
+	      sp = memcpy(newsp, sp, 16 * 4);
+
+	    /* Don't allow CWP to be modified. */
+
+	    if (psr != registers[PSR])
+	      registers[PSR] = (psr & 0x1f) | (registers[PSR] & ~0x1f);
+
+	    strcpy(remcomOutBuffer,"OK");
+	  }
+	  break;
+
+	case 'm':	  /* mAA..AA,LLLL  Read LLLL bytes at address AA..AA */
+	  /* Try to read %x,%x.  */
+
+	  ptr = &remcomInBuffer[1];
+
+	  if (hexToInt(&ptr, &addr)
+	      && *ptr++ == ','
+	      && hexToInt(&ptr, &length))
+	    {
+	      if (mem2hex((char *)addr, remcomOutBuffer, length, 1))
+		break;
+
+	      strcpy (remcomOutBuffer, "E03");
+	    }
+	  else
+	    strcpy(remcomOutBuffer,"E01");
+	  break;
+
+	case 'M': /* MAA..AA,LLLL: Write LLLL bytes at address AA.AA return OK */
+	  /* Try to read '%x,%x:'.  */
+
+	  ptr = &remcomInBuffer[1];
+
+	  if (hexToInt(&ptr, &addr)
+	      && *ptr++ == ','
+	      && hexToInt(&ptr, &length)
+	      && *ptr++ == ':')
+	    {
+	      if (hex2mem(ptr, (char *)addr, length, 1))
+		strcpy(remcomOutBuffer, "OK");
+	      else
+		strcpy(remcomOutBuffer, "E03");
+	    }
+	  else
+	    strcpy(remcomOutBuffer, "E02");
+	  break;
+
+	case 'c':    /* cAA..AA    Continue at address AA..AA(optional) */
+	  /* try to read optional parameter, pc unchanged if no parm */
+
+	  ptr = &remcomInBuffer[1];
+	  if (hexToInt(&ptr, &addr))
+	    {
+	      registers[PC] = addr;
+	      registers[NPC] = addr + 4;
+	    }
+
+/* Need to flush the instruction cache here, as we may have deposited a
+   breakpoint, and the icache probably has no way of knowing that a data ref to
+   some location may have changed something that is in the instruction cache.
+ */
+
+	  flush_i_cache();
+	  return;
+
+	  /* kill the program */
+	case 'k' :		/* do nothing */
+	  break;
+#if 0
+	case 't':		/* Test feature */
+	  asm (" std %f30,[%sp]");
+	  break;
+#endif
+	case 'r':		/* Reset */
+	  asm ("call 0
+		nop ");
+	  break;
+
+#if 0
+Disabled until we can unscrew this properly
+
+	case 'b':	  /* bBB...  Set baud rate to BB... */
+	  {
+	    int baudrate;
+	    extern void set_timer_3();
+
+	    ptr = &remcomInBuffer[1];
+	    if (!hexToInt(&ptr, &baudrate))
+	      {
+		strcpy(remcomOutBuffer,"B01");
+		break;
+	      }
+
+	    /* Convert baud rate to uart clock divider */
+	    switch (baudrate)
+	      {
+	      case 38400:
+		baudrate = 16;
+		break;
+	      case 19200:
+		baudrate = 33;
+		break;
+	      case 9600:
+		baudrate = 65;
+		break;
+	      default:
+		strcpy(remcomOutBuffer,"B02");
+		goto x1;
+	      }
+
+	    putpacket("OK");	/* Ack before changing speed */
+	    set_timer_3(baudrate); /* Set it */
+	  }
+x1:	  break;
+#endif
+	}			/* switch */
+
+      /* reply to the request */
+      putpacket(remcomOutBuffer);
+    }
+}
+
+/* This function will generate a breakpoint exception.  It is used at the
+   beginning of a program to sync up with a debugger and can be used
+   otherwise as a quick means to stop program execution and "break" into
+   the debugger. */
+
+void
+breakpoint()
+{
+  if (!initialized)
+    return;
+
+  asm("	.globl _breakinst
+
+	_breakinst: ta 1
+      ");
+}
+
+static void
+hw_breakpoint()
+{
+  asm("
+      ta 127
+      ");
+}
+
+#if 0 /* experimental and never finished, left here for reference */
+static void
+splet_temp(void)
+{
+  asm("	sub	%sp,(16+1+6+1+121)*4,%sp ! Make room for input & locals
+ 					! + hidden arg + arg spill
+					! + doubleword alignment
+					! + registers[121]
+
+! Leave a trail of breadcrumbs! (save register save area for debugging)
+	mov	%sp, %l0
+	add	%l0, 24*4, %l0
+	sethi	%hi(_debug_registers), %l1
+	st	%l0, [%lo(_debug_registers) + %l1]
+
+! Save the Alternate Register Set: (not implemented yet)
+!    To save the Alternate Register set, we must:
+!    1) Save the current SP in some global location.
+!    2) Swap the register sets.
+!    3) Save the Alternate SP in the Y register
+!    4) Fetch the SP that we saved in step 1.
+!    5) Use that to save the rest of the regs (not forgetting ASP in Y)
+!    6) Restore the Alternate SP from Y
+!    7) Swap the registers back.
+
+! 1) Copy the current stack pointer to global _SAVED_STACK_POINTER:
+	sethi	%hi(_saved_stack_pointer), %l0
+	st	%sp, [%lo(_saved_stack_pointer) + %l0]
+
+! 2) Swap the register sets:
+	mov	%psr, %l1
+	sethi	%hi(0x10000), %l2
+	xor	%l1, %l2, %l1
+	mov	%l1, %psr
+	nop			! 3 nops after write to %psr (needed?)
+	nop
+	nop
+
+! 3) Save Alternate L0 in Y
+	wr	%l0, 0, %y
+
+! 4) Load former SP into alternate SP, using L0
+	sethi	%hi(_saved_stack_pointer), %l0
+	or	%lo(_saved_stack_pointer), %l0, %l0
+	swap	[%l0], %sp
+
+! 4.5) Restore alternate L0
+	rd	%y, %l0
+
+! 5) Save the Alternate Window Registers
+	st	%r0, [%sp + (24 + 88) * 4]	! AWR0
+	st	%r1, [%sp + (24 + 89) * 4]	! AWR1
+	st	%r2, [%sp + (24 + 90) * 4]	! AWR2
+	st	%r3, [%sp + (24 + 91) * 4]	! AWR3
+	st	%r4, [%sp + (24 + 92) * 4]	! AWR4
+	st	%r5, [%sp + (24 + 93) * 4]	! AWR5
+	st	%r6, [%sp + (24 + 94) * 4]	! AWR6
+	st	%r7, [%sp + (24 + 95) * 4]	! AWR7
+	st	%r8, [%sp + (24 + 96) * 4]	! AWR8
+	st	%r9, [%sp + (24 + 97) * 4]	! AWR9
+	st	%r10, [%sp + (24 + 98) * 4]	! AWR10
+	st	%r11, [%sp + (24 + 99) * 4]	! AWR11
+	st	%r12, [%sp + (24 + 100) * 4]	! AWR12
+	st	%r13, [%sp + (24 + 101) * 4]	! AWR13
+!	st	%r14, [%sp + (24 + 102) * 4]	! AWR14	(SP)
+	st	%r15, [%sp + (24 + 103) * 4]	! AWR15
+	st	%r16, [%sp + (24 + 104) * 4]	! AWR16
+	st	%r17, [%sp + (24 + 105) * 4]	! AWR17
+	st	%r18, [%sp + (24 + 106) * 4]	! AWR18
+	st	%r19, [%sp + (24 + 107) * 4]	! AWR19
+	st	%r20, [%sp + (24 + 108) * 4]	! AWR20
+	st	%r21, [%sp + (24 + 109) * 4]	! AWR21
+	st	%r22, [%sp + (24 + 110) * 4]	! AWR22
+	st	%r23, [%sp + (24 + 111) * 4]	! AWR23
+	st	%r24, [%sp + (24 + 112) * 4]	! AWR24
+	st	%r25, [%sp + (24 + 113) * 4]	! AWR25
+	st	%r26, [%sp + (24 + 114) * 4]	! AWR26
+	st	%r27, [%sp + (24 + 115) * 4]	! AWR27
+	st	%r28, [%sp + (24 + 116) * 4]	! AWR28
+	st	%r29, [%sp + (24 + 117) * 4]	! AWR29
+	st	%r30, [%sp + (24 + 118) * 4]	! AWR30
+	st	%r31, [%sp + (24 + 119) * 4]	! AWR21
+
+! Get the Alternate PSR (I hope...)
+
+	rd	%psr, %l2
+	st	%l2, [%sp + (24 + 120) * 4]	! APSR
+
+! Don't forget the alternate stack pointer
+
+	rd	%y, %l3
+	st	%l3, [%sp + (24 + 102) * 4]	! AWR14 (SP)
+
+! 6) Restore the Alternate SP (saved in Y)
+
+	rd	%y, %o6
+
+
+! 7) Swap the registers back:
+
+	mov	%psr, %l1
+	sethi	%hi(0x10000), %l2
+	xor	%l1, %l2, %l1
+	mov	%l1, %psr
+	nop			! 3 nops after write to %psr (needed?)
+	nop
+	nop
+");
+}
+
+#endif
diff --git a/libgloss/sparc/sparclite.h b/libgloss/sparc/sparclite.h
new file mode 100644
index 0000000..0f14d51
--- /dev/null
+++ b/libgloss/sparc/sparclite.h
@@ -0,0 +1,81 @@
+/* SPARClite defs
+ *
+ * Copyright (c) 1995 Cygnus Support
+ *
+ * The authors hereby grant permission to use, copy, modify, distribute,
+ * and license this software and its documentation for any purpose, provided
+ * that existing copyright notices are retained in all copies and that this
+ * notice is included verbatim in any distributions. No written agreement,
+ * license, or royalty fee is required for any of the authorized uses.
+ * Modifications to this software may be copyrighted by their authors
+ * and need not follow the licensing terms described here, provided that
+ * the new terms are clearly indicated on the first page of each file where
+ * they apply.
+ */
+
+/* Macros for reading and writing to arbitrary address spaces.  Note that ASI
+   must be a constant (sorry, but the SPARC can only specify ASIs as part of an
+   instruction.  */
+
+#define read_asi(ASI, LOC)						\
+  ({									\
+    unsigned int val;							\
+    __asm__ volatile ("lda [%r1]%2,%0" : "=r" (val) : "rJ" (LOC), "I" (ASI)); \
+    val;								\
+  })
+
+#define write_asi(ASI, LOC, VAL) \
+  __asm__ volatile ("sta %0,[%r1]%2" : : "r" (VAL), "rJ" (LOC), "I" (ASI))
+
+/* Use this when modifying registers that cause memory to be modified.  This
+   will cause GCC to reload all values after this point.  */
+
+#define write_asi_volatile(ASI, LOC, VAL) \
+  __asm__ volatile ("sta %0,[%r1]%2" : : "r" (VAL), "rJ" (LOC), "I" (ASI) \
+		    : "memory")
+
+/* Read the PSR (processor state register). */
+
+#define read_psr()							\
+  ({									\
+    unsigned int psr;							\
+    __asm__ ("mov %%psr, %0" : "=r" (psr));				\
+    psr;								\
+  })
+
+/* Write the PSR. */
+
+#define write_psr(VAL)							\
+  __asm__ ("mov %0, %%psr \n nop \n nop \n nop" : : "r" (VAL))
+
+/* Read the specified Ancillary State Register. */
+
+#define read_asr(REG) read_asr1(REG)
+#define read_asr1(REG)							\
+  ({									\
+    unsigned int val;							\
+    __asm__ ("rd %%asr" #REG ",%0" : "=r" (val));			\
+    val;								\
+  })
+
+/* Write the specified Ancillary State Register. */
+
+#define write_asr(REG, VAL) write_asr1(REG, VAL)
+#define write_asr1(REG, VAL)						\
+    __asm__ ("wr %0, 0, %%asr" #REG : : "r" (VAL))
+
+/* Set window size for window overflow and underflow trap handlers.  Better to
+   do this at at compile time than to calculate them at compile time each time
+   we get a window overflow/underflow trap.  */
+
+#ifdef SL933
+	asm ("__WINSIZE=6");
+#else
+	asm ("__WINSIZE=8");
+#endif
+
+#define PSR_INIT   0x10c0       /* Disable traps, set s and ps */
+#define TBR_INIT   0
+#define WIM_INIT   2
+#define STACK_SIZE 16 * 1024
+
diff --git a/libgloss/sparc/sysc-701.c b/libgloss/sparc/sysc-701.c
new file mode 100644
index 0000000..191a08a
--- /dev/null
+++ b/libgloss/sparc/sysc-701.c
@@ -0,0 +1,55 @@
+/* more sparclet syscall support (the rest is in crt0-701.S).  */
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <errno.h>
+
+int
+fstat(int _fd, struct stat* _sbuf)
+{
+  errno = ENOSYS;
+  return -1;
+}
+
+int
+isatty(int fd)
+{
+  if (fd < 0)
+    {
+      errno = EBADF;
+      return -1;
+    }
+  return fd <= 2;
+}
+
+int 
+getpid()
+{
+  return 1;
+}
+
+int 
+kill(int pid)
+{
+  /* if we knew how to nuke the board, we would... */
+  return 0;
+}
+
+int
+lseek(int _fd, off_t offset, int whence)
+{
+  errno = ENOSYS;
+  return -1;
+}
+
+extern char end;
+char*
+sbrk (int incr)
+{
+  static char* base;
+  char *b;
+  if(!base) base = &end;
+  b = base;
+  base += incr;
+  return b;
+}
diff --git a/libgloss/sparc/syscalls.c b/libgloss/sparc/syscalls.c
new file mode 100644
index 0000000..01ba501
--- /dev/null
+++ b/libgloss/sparc/syscalls.c
@@ -0,0 +1,85 @@
+/* Copyright (c) 1995 Cygnus Support
+ *
+ * The authors hereby grant permission to use, copy, modify, distribute,
+ * and license this software and its documentation for any purpose, provided
+ * that existing copyright notices are retained in all copies and that this
+ * notice is included verbatim in any distributions. No written agreement,
+ * license, or royalty fee is required for any of the authorized uses.
+ * Modifications to this software may be copyrighted by their authors
+ * and need not follow the licensing terms described here, provided that
+ * the new terms are clearly indicated on the first page of each file where
+ * they apply.
+ *
+ * fake unix routines for sparclite and remote debugger
+ * Many of these routines just substitute an appropriate error status,
+ * if you want some kind of file system access, you'll have to fill them in...
+ * sbrk on the other hand is functional (malloc uses it) but it doesn't do 
+ * any checking for lack of memory. 
+ * kill and _exit could get more real implementations, as well.
+ */
+
+#include <sys/stat.h>
+
+int
+fstat(int _fd, struct stat* _sbuf)
+{
+  /* this is used in a few places in stdio... */
+  /* just error, so they assume a pipe */
+  return -1;
+}
+
+int
+isatty(int _fd)
+{
+  return 1;
+}
+
+int
+close(int _fd)
+{
+  /* return value usually ignored anyhow */
+  return 0;
+}
+
+int 
+open(char *filename)
+{
+  /* always fail */
+  return -1;
+}
+
+int 
+getpid() {
+  return 1;
+}
+
+int 
+kill(int pid) {
+  /* if we knew how to nuke the board, we would... */
+  return 0;
+}
+
+void
+_exit(int status) {
+  /* likewise... */
+  return;
+}
+
+int
+lseek(int _fd, off_t offset, int whence)
+{
+  /* nothing is ever seekable */
+  return -1;
+}
+
+extern char end;
+char*
+sbrk(int incr)
+{
+  static char* base;
+  char *b;
+  if(!base) base = &end;
+  b = base;
+  base += incr;
+  return b;
+}
diff --git a/libgloss/sparc/test.c b/libgloss/sparc/test.c
new file mode 100644
index 0000000..fc443a8
--- /dev/null
+++ b/libgloss/sparc/test.c
@@ -0,0 +1,69 @@
+#include "debug.h"
+
+char hextab[] = "0123456789abcdef";
+
+int
+foo(arg)
+     int arg;
+{
+  return arg+1;
+}
+
+int
+fact (i)
+     int i;
+{
+  if (i == 1)
+    return 1;
+  else
+    return i * fact ( i - 1);
+}
+
+main()
+{
+  unsigned char c;
+  int num;
+  char foo[100];
+
+#if 0
+  set_debug_level(2);
+
+  cache_on();
+#endif
+
+  set_debug_traps();
+  breakpoint();
+
+  print("Got to here\r\n");
+
+  while (1) {
+    c = inbyte();
+    if (c == 'c')
+      break;
+    
+    if (c == 'd') {
+      set_debug_traps();
+      breakpoint();
+      break;
+    }
+    
+    print("echo ");
+    outbyte(c);
+    print("\r\n");
+  }
+
+  print("Hello world\r\n");
+  
+  while (1) {
+    c = inbyte();
+    
+    if ((c & 0x7f) == 4)
+      break;
+    
+    print("Char is ");
+    outbyte (c);
+    print("\r\n");
+  }
+  
+  print("I escaped!\r\n");
+}
diff --git a/libgloss/sparc/traps.S b/libgloss/sparc/traps.S
new file mode 100644
index 0000000..b3cc966
--- /dev/null
+++ b/libgloss/sparc/traps.S
@@ -0,0 +1,651 @@
+/*
+ * Copyright (c) 1995, 1996, 1998 Cygnus Support
+ *
+ * The authors hereby grant permission to use, copy, modify, distribute,
+ * and license this software and its documentation for any purpose, provided
+ * that existing copyright notices are retained in all copies and that this
+ * notice is included verbatim in any distributions. No written agreement,
+ * license, or royalty fee is required for any of the authorized uses.
+ * Modifications to this software may be copyrighted by their authors
+ * and need not follow the licensing terms described here, provided that
+ * the new terms are clearly indicated on the first page of each file where
+ * they apply.
+ */
+
+#include "asm.h"
+#include "slite.h"
+
+	.text
+	.align 4
+
+/* 
+ *  The trap table has to be the first code in a boot PROM.  But because
+ *  the Memory Configuration comes up thinking we only have 4K of PROM, we
+ *  cannot have a full trap table and still have room left over to 
+ *  reprogram the Memory Configuration register correctly.  This file
+ *  uses an abbreviated trap which has every entry which might be used
+ *  before RTEMS installs its own trap table.
+ */
+	.globl	_trap_table
+_trap_table:
+  TRAP(SYM(ercinit));				! 00 reset trap 
+  BAD_TRAP;                                     ! 01 instruction access exception
+  TRAP(SYM(no_fpu));				! 02 illegal instruction
+  BAD_TRAP;                                     ! 03 privileged instruction
+  BAD_TRAP;                                     ! 04 fp disabled
+  TRAP(SYM(win_overflow));			! 05 window overflow
+  TRAP(SYM(win_underflow));			! 06 window underflow
+  BAD_TRAP;                                     ! 07 memory address not aligned
+  BAD_TRAP;                                     ! 08 fp exception
+  BAD_TRAP;                                     ! 09 data access exception
+  BAD_TRAP;					! 0A tag overflow
+
+  /* Trap levels from 0B to 0x10 are not defined (used for MEC init) */
+
+SYM(ercinit):
+  sethi         %hi(_ERC32_MEC), %g1		! 0B
+  sethi         %hi(0x001C1000), %g2
+  or            %g1,%lo(0x001C1000),%g1
+  st            %g2, [%g1 + 0x10]
+  st            %g0, [%g1 + 0x18]			! 0C
+  nop
+  nop
+  nop
+
+  TRAP(SYM(hard_reset));			! 0D undefined
+  BAD_TRAP;                                     ! 0E undefined
+  BAD_TRAP;                                     ! 0F undefined
+  BAD_TRAP;                                     ! 10 undefined
+
+  /* 
+   *  ERC32 defined traps
+   */
+
+  BAD_TRAP;                                     ! 11 masked errors
+  BAD_TRAP;                                     ! 12 external 1
+  BAD_TRAP;                                     ! 13 external 2
+  BAD_TRAP;                                     ! 14 UART A RX/TX
+  BAD_TRAP;                                     ! 15 UART B RX/TX
+  BAD_TRAP;                                     ! 16 correctable memory error
+  BAD_TRAP;                                     ! 17 UART error
+  BAD_TRAP;                                     ! 18 DMA access error
+  BAD_TRAP;                                     ! 19 DMA timeout
+  BAD_TRAP;                                     ! 1A external 3
+  BAD_TRAP;                                     ! 1B external 4
+  BAD_TRAP;                                     ! 1C general purpose timer
+  BAD_TRAP;                                     ! 1D real time clock
+  BAD_TRAP;                                     ! 1E external 5
+  BAD_TRAP;                                     ! 1F watchdog timeout
+
+
+  BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP;       ! 20 - 23 undefined
+  BAD_TRAP;                                     ! 24 cp_disabled
+            BAD_TRAP; BAD_TRAP; BAD_TRAP;       ! 25 - 27 undefined
+  BAD_TRAP;                                     ! 28 cp_exception
+            BAD_TRAP; BAD_TRAP; BAD_TRAP;       ! 29 - 2B undefined
+  BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP;       ! 2C - 2F undefined
+  BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP;       ! 30 - 33 undefined
+  BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP;       ! 34 - 37 undefined
+  BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP;       ! 38 - 3B undefined
+  BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP;       ! 3C - 3F undefined
+  BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP;       ! 40 - 43 undefined
+  BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP;       ! 44 - 47 undefined
+  BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP;       ! 48 - 4B undefined
+  BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP;       ! 4C - 4F undefined
+  BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP;       ! 50 - 53 undefined
+  BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP;       ! 54 - 57 undefined
+  BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP;       ! 58 - 5B undefined
+  BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP;       ! 5C - 5F undefined
+  BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP;       ! 60 - 63 undefined
+  BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP;       ! 64 - 67 undefined
+  BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP;       ! 68 - 6B undefined
+  BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP;       ! 6C - 6F undefined
+  BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP;       ! 70 - 73 undefined
+  BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP;       ! 74 - 77 undefined
+  BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP;       ! 78 - 7B undefined
+  BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP;       ! 7C - 7F undefined
+
+  /* 
+   *  Software traps
+   *
+   *  NOTE: At the risk of being redundant... this is not a full
+   *        table.  The setjmp on the SPARC requires a window flush trap
+   *        handler and RTEMS will preserve the entries that were
+   *        installed before.
+   */
+
+  SOFT_TRAP;					! 80
+#if 0
+  SOFT_TRAP;					! 81
+#else
+  TRAP(SYM(trap_low))				! 81
+#endif
+  SOFT_TRAP;					! 82
+  TRAP(SYM(win_flush));				! 83 flush windows SW trap
+  SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP;   ! 84 - 87
+  SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP;   ! 88 - 8B
+  SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP;   ! 8C - 8F
+  SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP;   ! 90 - 93
+  SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP;   ! 94 - 97
+  SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP;   ! 98 - 9B
+  SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP;   ! 9C - 9F
+  SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP;   ! A0 - A3
+  SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP;   ! A4 - A7
+  SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP;   ! A8 - AB
+  SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP;   ! AC - AF
+  SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP;   ! B0 - B3
+  SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP;   ! B4 - B7
+  SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP;   ! B8 - BB
+  SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP;   ! BC - BF
+  SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP;   ! C0 - C3
+  SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP;   ! C4 - C7
+  SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP;   ! C8 - CB
+  SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP;   ! CC - CF
+  SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP;   ! D0 - D3
+  SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP;   ! D4 - D7
+  SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP;   ! D8 - DB
+  SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP;   ! DC - DF
+  SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP;   ! E0 - E3
+  SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP;   ! E4 - E7
+  SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP;   ! E8 - EB
+  SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP;   ! EC - EF
+  SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP;   ! F0 - F3
+  SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP;   ! F4 - F7
+  SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP;   ! F8 - FB 
+  SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP;   ! FC - FF
+
+/*
+ * Startup code for standalone system. Wash IU and FPU (if present)
+ * registers. The registers have to be written to initiate the parity
+ * bits.
+ */
+	.globl	SYM(hard_reset)
+SYM(hard_reset):
+
+        sethi	%hi(0x01FE0),%o0
+        or	%o0,%lo(0x01FE0),%o0
+        mov     %o0, %psr		! Set valid PSR
+        nop
+
+        mov     %g0, %wim		! Set window invalid mask register
+        mov     %g0, %y			! Init Y-register
+        nop
+        sethi   %hi(SYM(hard_reset)), %g1
+
+        mov     %g1, %tbr		! Set TBR
+        sethi	%hi(SP_INIT),%sp
+        or      %g0, 1, %o0
+        ld      [%g0], %f0		! Check if FPU is present
+
+        tst     %o0
+        bz      fixiu
+        nop
+        ba      fixfpu
+
+! FPU disabled trap address
+
+        clr     %i0
+        jmpl    %l2, %g0
+        rett    %l2 + 4
+        nop
+        
+
+! Wash register files (fix for 90C601E & 90C602E)
+
+fixfpu:
+
+        ld      [%g0], %f0
+        ld      [%g0], %f1
+        ld      [%g0], %f2
+        ld      [%g0], %f3
+        ld      [%g0], %f4
+        ld      [%g0], %f5
+        ld      [%g0], %f6
+        ld      [%g0], %f7
+        ld      [%g0], %f8
+        ld      [%g0], %f9
+        ld      [%g0], %f10
+        ld      [%g0], %f11
+        ld      [%g0], %f12
+        ld      [%g0], %f13
+        ld      [%g0], %f14
+        ld      [%g0], %f15
+        ld      [%g0], %f16
+        ld      [%g0], %f17
+        ld      [%g0], %f18
+        ld      [%g0], %f19
+        ld      [%g0], %f20
+        ld      [%g0], %f21
+        ld      [%g0], %f22
+        ld      [%g0], %f23
+        ld      [%g0], %f24
+        ld      [%g0], %f25
+        ld      [%g0], %f26
+        ld      [%g0], %f27
+        ld      [%g0], %f28
+        ld      [%g0], %f29
+        ld      [%g0], %f30
+        ld      [%g0], %f31
+
+fixiu:
+        clr     %g1
+        clr     %g2
+        clr     %g3
+        clr     %g4
+        clr     %g5
+        clr     %g6
+        clr     %g7
+        set     8,%g1
+wl0:
+        clr     %i0
+        clr     %i1
+        clr     %i2
+        clr     %i3
+        clr     %i4
+        clr     %i5
+        clr     %i6
+        clr     %i7
+        clr     %l0
+        clr     %l1
+        clr     %l2
+        clr     %l3
+        clr     %l4
+        clr     %l5
+        clr     %l6
+        clr     %l7
+        save
+        subcc   %g1, 1, %g1
+        bne     wl0
+        nop
+
+!
+! Start the real-time clock with a tick of 150 clocks
+!
+
+rtc:
+
+        set     0x1f80000, %l0		! MEC register base
+        set     149, %l1
+        st      %l1, [%l0 + 0x84]	! RTC scaler = 149
+        set     0x0d00, %l1
+        st      %l1, [%l0 + 0x98]	! Start RTC
+
+        st      %g0, [%l0 + 0x64]	! Disable watchdog for now
+        ld      [%l0], %g1
+        or      %g1, 1, %g1
+        st      %g1, [%l0]		! Enable power-down mode
+
+_init:
+	set     PSR_INIT, %g1		! Initialize psr
+        mov     %g1, %psr
+        set     WIM_INIT, %g1		! Initialize WIM
+        mov     %g1, %wim               
+        set     _trap_table, %g1	! Initialize TBR
+        mov     %g1, %tbr
+        nop;nop;nop                     
+
+        set     PSR_INIT, %g1
+        wr      %g1, 0x20, %psr		! enable traps
+        nop; nop; nop;
+
+	call	SYM(start)
+	nop
+	
+/*
+ * Register window overflow handler.  Come here when save would move us
+ * into the invalid window.  This routine runs with traps disabled, and
+ * must be careful not to touch the condition codes, as PSR is never
+ * restored.
+ *
+ * We are called with %l0 = wim, %l1 = pc, %l2 = npc
+ */
+	.globl SYM(win_overflow)
+SYM(win_overflow):
+        mov     %g1, %l3		! Save g1, we use it to hold the wim
+        srl     %l0, 1, %g1		! Rotate wim right
+        sll     %l0, NUMBER_OF_REGISTER_WINDOWS - 1, %l0
+        or      %l0, %g1, %g1
+
+        save    %g0, %g0, %g0		! Slip into next window
+        mov     %g1, %wim		! Install the new wim
+	nop
+	nop
+	nop
+
+        std     %l0, [%sp + 0 * 4]	! save L & I registers
+        std     %l2, [%sp + 2 * 4]
+        std     %l4, [%sp + 4 * 4]
+        std     %l6, [%sp + 6 * 4]
+
+        std     %i0, [%sp + 8 * 4]
+        std     %i2, [%sp + 10 * 4]
+        std     %i4, [%sp + 12 * 4]
+        std     %i6, [%sp + 14 * 4]
+
+        restore                         ! Go back to trap window.
+        mov     %l3, %g1		! Restore %g1
+
+        jmpl    %l1, %g0
+        rett    %l2
+
+/*
+ * Register window underflow handler.  Come here when restore would move us
+ * into the invalid window.  This routine runs with traps disabled, and
+ * must be careful not to touch the condition codes, as PSR is never
+ * restored.
+ *
+ * We are called with %l0 = wim, %l1 = pc, %l2 = npc
+ */
+	.globl SYM(win_underflow)
+SYM(win_underflow):
+        sll     %l0, 1, %l3		! Rotate wim left
+        srl     %l0, NUMBER_OF_REGISTER_WINDOWS - 1, %l0
+        or      %l0, %l3, %l0
+
+        mov     %l0, %wim		! Install the new wim
+
+        restore                         ! Users window
+        restore                         ! His callers window
+
+        ldd     [%sp + 0 * 4], %l0	! restore L & I registers
+        ldd     [%sp + 2 * 4], %l2
+        ldd     [%sp + 4 * 4], %l4
+        ldd     [%sp + 6 * 4], %l6
+
+        ldd     [%sp + 8 * 4], %i0
+        ldd     [%sp + 10 * 4], %i2
+        ldd     [%sp + 12 * 4], %i4
+        ldd     [%sp + 14 * 4], %i6
+
+        save    %g0, %g0, %g0		! Back to trap window
+        save    %g0, %g0, %g0
+
+        jmpl    %l1, %g0
+        rett    %l2
+
+/*
+ * Register window flush handler, triggered by a "ta 3" instruction.
+ * We are called with %l0 = wim, %l1 = pc, %l2 = npc
+ */
+	.globl	SYM(win_flush)
+SYM(win_flush):
+	mov	%psr, %l0
+	or	%l0,0xf00,%l3		! Disable interrupts
+	mov	%l3,%psr
+	nop
+	nop
+	nop
+	mov	%wim, %l3
+
+	srl	%l3, %l0, %l4		! wim >> cwp
+	cmp	%l4, 1
+	bne	flush_window_fine	! Branch if not in the invalid window
+	nop
+
+/* Handle window overflow. We can't trap here. */
+
+	mov	%g1, %l4		! Save g1, we use it to hold the wim
+	srl	%l3, 1, %g1		! Rotate wim right
+        sll     %l3, NUMBER_OF_REGISTER_WINDOWS - 1, %l3
+        or      %l3, %g1, %g1
+	mov	%g0, %wim		! Clear wim so that subsequent save
+	nop				!  wont trap
+	nop
+	nop
+	save	%g0, %g0, %g0		! Slip into next window
+	mov	%g1, %wim		! Install the new wim
+
+	std	%l0, [%sp + 0 * 4]	! save L & I registers
+	std	%l2, [%sp + 2 * 4]
+	std	%l4, [%sp + 4 * 4]
+	std	%l6, [%sp + 6 * 4]
+
+	std	%i0, [%sp + 8 * 4]
+	std	%i2, [%sp + 10 * 4]
+	std	%i4, [%sp + 12 * 4]
+	std	%i6, [%sp + 14 * 4]
+
+	restore				! Go back to trap window.
+	mov	%l4, %g1		! Restore %g1
+
+flush_window_fine:
+	mov	%psr,%l5		! enable traps
+	or	%l5,0x20,%l5
+	mov	%l5, %psr
+	nop
+	nop
+	nop
+
+	set	save_buf,%l5
+	st	%l2,[%l5]
+
+	! The stack pointer currently contains a bogus value [when a trap
+	! occurs CWP is decremented and points to an unused window].
+	! Give it something useful before we flush every window.
+	! This does what a "save %sp,-64,$sp" would, except that CWP has
+	! already been decremented.
+	add	%fp, -64, %sp
+
+	save %sp, -64, %sp		! Flush user register window to stack
+	save %sp, -64, %sp
+	save %sp, -64, %sp
+	save %sp, -64, %sp
+	save %sp, -64, %sp
+	save %sp, -64, %sp
+	save %sp, -64, %sp
+	save %sp, -64, %sp
+	restore
+	restore
+	restore
+	restore
+	restore
+	restore
+	restore
+	restore
+
+	restore				! Make sure we have a valid window
+	save %g0, %g0, %g0
+
+	set	save_buf, %l2		! Get our return address back
+	ld	[%l2],%l2
+
+	mov	%psr,%l5		! disable traps for rett
+	andn	%l5,0x20,%l5
+	mov	%l5,%psr
+	nop
+	nop
+	nop
+
+	jmpl	%l2, %g0
+	rett	%l2+4
+
+/*
+ * Read the TBR.
+ */
+       .globl SYM(rdtbr)
+SYM(rdtbr):
+        mov     %tbr, %o0
+	nop
+        retl
+	nop
+
+/*
+ * Read the psr
+ */
+	.globl	SYM(read_psr)
+SYM(read_psr):
+	mov	%psr, %o0
+	nop
+        retl
+	nop
+
+/*
+ * Write the PSR.
+ */
+
+	.globl	SYM(write_psr)
+SYM(write_psr):
+	mov %i0, %psr
+	nop
+	nop
+	nop
+	retl
+	nop
+/*
+ * Come here when no fpu exists.  This just skips the offending
+ * instruction.
+ */
+	.globl	SYM(no_fpu)
+SYM(no_fpu):
+        jmpl %l2, %g0
+        rett %l2+4
+
+        .globl SYM(fltr_proto)
+        .align 4
+SYM(fltr_proto):                    ! First level trap routine prototype
+        sethi 0, %l0
+        jmpl 0+%l0, %g0
+        nop
+        nop
+
+/*
+ * Trap handler for memory errors.  This just sets mem_err to be
+ * non-zero.  It assumes that l1 is non-zero.  This should be safe,
+ * as it is doubtful that 0 would ever contain code that could mem
+ * fault.  This routine will skip past the faulting instruction after
+ * setting mem_err.
+ */
+	.globl	SYM(fltr_set_mem_err)
+SYM(fltr_set_mem_err):
+	sethi	%hi(SYM(mem_err)), %l0
+	st	%l1, [%l0 + %lo(SYM(mem_err))]
+	jmpl	%l2, %g0
+	rett	%l2+4
+
+        .data
+        .align  4
+	.ascii	"DaTa"
+	.long	SYM(sdata)
+in_trap_handler:
+	.word	0
+save_buf:	
+	.word	0	/* place to save %g1 */
+	.word	0	/* place to save %g2 */
+
+	.text
+	.align 4
+
+/*
+ * This function is called when any SPARC trap (except window overflow
+ * or underflow) occurs.  It makes sure that the invalid register
+ * window is still available before jumping into C code.  It will also
+ * restore the world if you return from handle_exception.
+ */
+	.globl SYM(trap_low)
+SYM(trap_low):
+	mov	%psr, %l0
+	mov	%wim, %l3
+
+	srl	%l3, %l0, %l4		! wim >> cwp
+	cmp	%l4, 1
+	bne	window_fine		! Branch if not in the invalid window
+	nop
+
+        mov     %g1, %l4		! Save g1, we use it to hold the wim
+        srl     %l3, 1, %g1		! Rotate wim right
+        sll     %l3, 8-1, %l5
+        or      %l5, %g1, %g1
+		
+	save	%g0, %g0, %g0		! Slip into next window
+	mov	%g1, %wim		! Install the new wim
+
+	std	%l0, [%sp + 0 * 4]	! save L & I registers
+	std	%l2, [%sp + 2 * 4]
+	std	%l4, [%sp + 4 * 4]
+	std	%l6, [%sp + 6 * 4]
+
+	std	%i0, [%sp + 8 * 4]
+	std	%i2, [%sp + 10 * 4]
+	std	%i4, [%sp + 12 * 4]
+	std	%i6, [%sp + 14 * 4]
+
+	restore				! Go back to trap window.
+	mov	%l4, %g1		! Restore g1
+
+window_fine:
+	sethi	%hi(in_trap_handler), %l4
+	ld	[%lo(in_trap_handler) + %l4], %l5
+	tst	%l5
+	bg	recursive_trap
+	inc	%l5
+
+	/* use the stack we set in the linker script */
+	sethi	%hi(__trap_stack), %l6
+        or      %l6,%lo(__trap_stack),%l6
+	mov	%l6, %sp		! set the stack pointer
+
+recursive_trap:
+	st	%l5, [%lo(in_trap_handler) + %l4]
+
+	sub	%sp,(16+1+6+1+72)*4,%sp	! Make room for input & locals
+ 					! + hidden arg + arg spill
+					! + doubleword alignment
+					! + registers[72] local var
+
+	std	%g0, [%sp + (24 + 0) * 4] ! registers[Gx]
+	std	%g2, [%sp + (24 + 2) * 4]
+	std	%g4, [%sp + (24 + 4) * 4]
+	std	%g6, [%sp + (24 + 6) * 4]
+
+	std	%i0, [%sp + (24 + 8) * 4] ! registers[Ox]
+	std	%i2, [%sp + (24 + 10) * 4]
+	std	%i4, [%sp + (24 + 12) * 4]
+	std	%i6, [%sp + (24 + 14) * 4]
+					 ! F0->F31 not implemented
+	mov	%y, %l4
+	mov	%tbr, %l5
+	st	%l4, [%sp + (24 + 64) * 4] ! Y
+	st	%l0, [%sp + (24 + 65) * 4] ! PSR
+	st	%l3, [%sp + (24 + 66) * 4] ! WIM
+	st	%l5, [%sp + (24 + 67) * 4] ! TBR
+	st	%l1, [%sp + (24 + 68) * 4] ! PC
+	st	%l2, [%sp + (24 + 69) * 4] ! NPC
+					 ! CPSR and FPSR not implemented
+
+	or	%l0, 0xf20, %l4
+	mov	%l4, %psr		! Turn on traps, disable interrupts
+
+	call	SYM(handle_exception)
+	add	%sp, 24 * 4, %o0	! Pass address of registers
+
+/* Reload all of the registers that aren't on the stack */
+
+	ld	[%sp + (24 + 1) * 4], %g1  ! registers[Gx]
+	ldd	[%sp + (24 + 2) * 4], %g2
+	ldd	[%sp + (24 + 4) * 4], %g4
+	ldd	[%sp + (24 + 6) * 4], %g6
+
+	ldd	[%sp + (24 + 8) * 4], %i0  ! registers[Ox]
+	ldd	[%sp + (24 + 10) * 4], %i2
+	ldd	[%sp + (24 + 12) * 4], %i4
+	ldd	[%sp + (24 + 14) * 4], %i6
+
+	ldd	[%sp + (24 + 64) * 4], %l0 ! Y & PSR
+	ldd	[%sp + (24 + 68) * 4], %l2 ! PC & NPC
+
+	restore				! Ensure that previous window is valid
+	save	%g0, %g0, %g0		!  by causing a window_underflow trap
+
+	mov	%l0, %y
+	mov	%l1, %psr		! Make sure that traps are disabled
+					! for rett
+
+	sethi	%hi(in_trap_handler), %l4
+	ld	[%lo(in_trap_handler) + %l4], %l5
+	dec	%l5
+	st	%l5, [%lo(in_trap_handler) + %l4]
+
+	jmpl	%l2, %g0		! Restore old PC
+	rett	%l3			! Restore old nPC
+
+
diff --git a/libgloss/sparc/tsc701.ld b/libgloss/sparc/tsc701.ld
new file mode 100644
index 0000000..bc6cd73
--- /dev/null
+++ b/libgloss/sparc/tsc701.ld
@@ -0,0 +1,55 @@
+/* must compile with -nostdlib option */
+OUTPUT_FORMAT("a.out-sunos-big", "a.out-sunos-big",
+              "a.out-sparc-little")
+OUTPUT_ARCH(sparc)
+SEARCH_DIR(/usr/local/sparclet-aout/lib)
+PROVIDE (__stack = 0);
+ENTRY (start)
+STARTUP (crt0-701.o)
+GROUP (libsplet701.a libc.a libgcc.a)
+SECTIONS
+{
+  /* Sparcmon likes to load programs starting at this address. */
+  . = 0x12010000;
+  .text :
+  {
+    CREATE_OBJECT_SYMBOLS
+    *(.text)
+    /* The next six sections are for SunOS dynamic linking.  The order
+       is important.  */
+    *(.dynrel)  
+    *(.hash)
+    *(.dynsym)
+    *(.dynstr)
+    *(.rules)
+    *(.need)
+    _etext = .;
+    __etext = .;
+  }
+  .data :
+  {
+    /* The first three sections are for SunOS dynamic linking.  */
+    *(.dynamic)
+    *(.got)
+    *(.plt)
+    *(.data)
+    *(.linux-dynamic) /* For Linux dynamic linking.  */
+    CONSTRUCTORS
+    _edata  =  .;
+    __edata  =  .;
+  }
+  .bss :
+  {
+    __bss_start = .;
+   *(.bss)
+   *(COMMON)
+   _end = ALIGN(4) ;
+   __end = ALIGN(4) ;
+  }
+  /* This is the value that Sparcmon assigns to the SP at reset, minus 4K. */
+  PROVIDE(___stack = 0x123ef000);
+  PROVIDE(__stack = 0x123ef000);
+  /* Provide 4K area for copying the trap vectors from ROM to RAM.  */
+  PROVIDE(___trap_vectors = 0x123f0000);
+  PROVIDE(__trap_vectors = 0x123f0000);
+}