2001-10-31 David Howells <dhowells@redhat.com>

* syscall.h: Added SYS_times, SYS_gettimeofday, SYS_link values.
        * mn10300/times.c: Renamed "times" to "_times" so that it can be
        referenced by newlib.
        * mn10300/cygmon.c: New file.
        * mn10300/crt0_redboot.S: Ditto.
        * mn10300/crt0_cygmon.S: Ditto.
        * mn10300/Makefile.in: Added RedBoot and Cygmon support.
        * mn10300/configure.in: Changed to allow for future
        evaluation boards to be added.
        * mn10300/configure: Regenerated.

libgloss/ChangeLog

@@ -1,3 +1,16 @@
+2001-10-31  David Howells  <dhowells@redhat.com>
+
+	* syscall.h: Added SYS_times, SYS_gettimeofday, SYS_link values.
+        * mn10300/times.c: Renamed "times" to "_times" so that it can be
+        referenced by newlib.
+        * mn10300/cygmon.c: New file.
+        * mn10300/crt0_redboot.S: Ditto.
+        * mn10300/crt0_cygmon.S: Ditto.
+        * mn10300/Makefile.in: Added RedBoot and Cygmon support.
+	* mn10300/configure.in: Changed to allow for future
+	evaluation boards to be added.
+	* mn10300/configure: Regenerated.
+
 2001-10-17  Michael Meissner  <meissner@redhat.com>
 
 	* regs.S (K0BASE_ADDR,K1BASE_ADDR): Define as addresses to

libgloss/mn10300/Makefile.in

@@ -1,4 +1,4 @@
-# Copyright (c) 1998 Cygnus Support
+# Copyright (c) 1998, 2000 Cygnus Support
 #
 # The authors hereby grant permission to use, copy, modify, distribute,
 # and license this software and its documentation for any purpose, provided
@@ -63,24 +63,26 @@ OBJCOPY = `if [ -f ${objroot}/../binutils/objcopy ] ; \
 	then echo ${objroot}/../binutils/objcopy ; \
 	else t='$(program_transform_name)'; echo objcopy | sed -e $$t ; fi`
 
-CRT0 = crt0.o
+CRT0 = crt0.o crt0_cygmon.o crt0_redboot.o
 
 # Generic object files common to all targets.
-GENOBJS = _exit.o access.o chmod.o close.o crt1.o \
+GENOBJS_NO_TRAP = _exit.o access.o chmod.o close.o crt1.o \
 	fstat.o getpid.o isatty.o \
 	kill.o lseek.o open.o read.o \
-	sbrk.o stat.o time.o trap.o unlink.o utime.o write.o
+	sbrk.o stat.o time.o times.o unlink.o utime.o write.o
+GENOBJS = ${GENOBJS_NO_TRAP} trap.o
 
 # Object files specific to particular targets.
 EVALOBJS = ${GENOBJS}
+CYGMONOBJS = cygmon.o ${GENOBJS_NO_TRAP}
 
 CFLAGS = -g 
 
 GCC_LDFLAGS = `if [ -d ${objroot}/../gcc ] ; \
 	then echo -L${objroot}/../gcc ; fi`
 
-SCRIPTS = eval sim
+SCRIPTS = @script_list@
-BSP = libeval.a
+BSP = @bsp_list@
 
 # Host specific makefile fragment comes in here.
 @host_makefile_frag@
@@ -100,13 +102,17 @@ libeval.a: $(EVALOBJS)
 	${AR} ${ARFLAGS} $@ $(EVALOBJS)
 	${RANLIB} $@
 
+libcygmon.a: $(CYGMONOBJS)
+	${AR} ${ARFLAGS} $@ $(CYGMONOBJS)
+	${RANLIB} $@
+
 
 # compile a fully linked binary. 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.
 
-test: $(CRT0) test.o
+test: ${CRT0} test.o
 	${CC} $(CFLAGS_FOR_TARGET) -L${srcdir} -L${objdir} \
 	test.o -o $@ $(NEWLIB_LDFLAGS) -Wl,-Teval.ld
 	@echo Done...
@@ -121,7 +127,9 @@ distclean maintainer-clean realclean: clean
 
 .PHONY: install info install-info clean-info
 install:
-	$(INSTALL_PROGRAM) $(CRT0) $(tooldir)/lib${MULTISUBDIR}/$(CRT0)
+	@for crt in ${CRT0}; do\
+	$(INSTALL_PROGRAM) $${crt} $(tooldir)/lib${MULTISUBDIR}/$${crt}; \
+	done
 	@for bsp in ${BSP}; do\
 	 $(INSTALL_PROGRAM) $${bsp} $(tooldir)/lib${MULTISUBDIR}; \
 	done
@@ -136,7 +144,8 @@ clean-info:
 test.o:	${srcdir}/test.c
 
 # these are for the BSPs
-${CRT0}: ${srcdir}/crt0.S
+crt0.o: ${srcdir}/crt0.S
+crt0_cygmon.o: ${srcdir}/crt0_cygmon.S
 
 # target specific makefile fragment comes in here.
 @target_makefile_frag@

libgloss/mn10300/configure

@@ -1,7 +1,7 @@
 #! /bin/sh
 
 # Guess values for system-dependent variables and create Makefiles.
-# Generated automatically using autoconf version 2.12.1 
+# Generated automatically using autoconf version 2.13 
 # Copyright (C) 1992, 93, 94, 95, 96 Free Software Foundation, Inc.
 #
 # This configure script is free software; the Free Software Foundation
@@ -28,6 +28,7 @@ program_suffix=NONE
 program_transform_name=s,x,x,
 silent=
 site=
+sitefile=
 srcdir=
 target=NONE
 verbose=
@@ -142,6 +143,7 @@ Configuration:
   --help                  print this message
   --no-create             do not create output files
   --quiet, --silent       do not print \`checking...' messages
+  --site-file=FILE        use FILE as the site file
   --version               print the version of autoconf that created configure
 Directory and file names:
   --prefix=PREFIX         install architecture-independent files in PREFIX
@@ -312,6 +314,11 @@ EOF
   -site=* | --site=* | --sit=*)
     site="$ac_optarg" ;;
 
+  -site-file | --site-file | --site-fil | --site-fi | --site-f)
+    ac_prev=sitefile ;;
+  -site-file=* | --site-file=* | --site-fil=* | --site-fi=* | --site-f=*)
+    sitefile="$ac_optarg" ;;
+
   -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
     ac_prev=srcdir ;;
   -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
@@ -333,7 +340,7 @@ EOF
     verbose=yes ;;
 
   -version | --version | --versio | --versi | --vers)
-    echo "configure generated by autoconf version 2.12.1"
+    echo "configure generated by autoconf version 2.13"
     exit 0 ;;
 
   -with-* | --with-*)
@@ -477,12 +484,16 @@ fi
 srcdir=`echo "${srcdir}" | sed 's%\([^/]\)/*$%\1%'`
 
 # Prefer explicitly selected file to automatically selected ones.
-if test -z "$CONFIG_SITE"; then
+if test -z "$sitefile"; then
-  if test "x$prefix" != xNONE; then
+  if test -z "$CONFIG_SITE"; then
-    CONFIG_SITE="$prefix/share/config.site $prefix/etc/config.site"
+    if test "x$prefix" != xNONE; then
-  else
+      CONFIG_SITE="$prefix/share/config.site $prefix/etc/config.site"
-    CONFIG_SITE="$ac_default_prefix/share/config.site $ac_default_prefix/etc/config.site"
+    else
+      CONFIG_SITE="$ac_default_prefix/share/config.site $ac_default_prefix/etc/config.site"
+    fi
   fi
+else
+  CONFIG_SITE="$sitefile"
 fi
 for ac_site_file in $CONFIG_SITE; do
   if test -r "$ac_site_file"; then
@@ -503,9 +514,11 @@ 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 $LIBS 1>&5'
+ac_link='${CC-cc} -o conftest${ac_exeext} $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS 1>&5'
 cross_compiling=$ac_cv_prog_cc_cross
 
+ac_exeext=
+ac_objext=o
 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
@@ -581,7 +594,7 @@ 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:585: checking host system type" >&5
+echo "configure:598: checking host system type" >&5
 
 host_alias=$host
 case "$host_alias" in
@@ -602,7 +615,7 @@ 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:606: checking target system type" >&5
+echo "configure:619: checking target system type" >&5
 
 target_alias=$target
 case "$target_alias" in
@@ -620,7 +633,7 @@ 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:624: checking build system type" >&5
+echo "configure:637: checking build system type" >&5
 
 build_alias=$build
 case "$build_alias" in
@@ -669,28 +682,30 @@ test "$program_transform_name" = "" && program_transform_name="s,x,x,"
 # 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""... $ac_c" 1>&6
-echo "configure:677: checking for a BSD compatible install" >&5
+echo "configure:691: checking for a BSD compatible install" >&5
 if test -z "$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}:"
+    IFS="${IFS= 	}"; ac_save_IFS="$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
+      # 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.
-	    # OSF/1 installbsd also uses dspmsg, but is usable.
 	    :
 	  else
 	    ac_cv_path_install="$ac_dir/$ac_prog -c"
@@ -720,6 +735,8 @@ echo "$ac_t""$INSTALL" 1>&6
 # It thinks the first close brace ends the variable substitution.
 test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'
 
+test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL_PROGRAM}'
+
 test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
 
 
@@ -734,15 +751,16 @@ 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
-echo "configure:738: checking for $ac_word" >&5
+echo "configure:755: 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}:"
+  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS=":"
-  for ac_dir in $PATH; do
+  ac_dummy="$PATH"
+  for ac_dir in $ac_dummy; do
     test -z "$ac_dir" && ac_dir=.
     if test -f $ac_dir/$ac_word; then
       ac_cv_prog_CC="gcc"
@@ -763,16 +781,17 @@ 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:767: checking for $ac_word" >&5
+echo "configure:785: 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}:"
+  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS=":"
   ac_prog_rejected=no
-  for ac_dir in $PATH; do
+  ac_dummy="$PATH"
+  for ac_dir in $ac_dummy; do
     test -z "$ac_dir" && ac_dir=.
     if test -f $ac_dir/$ac_word; then
       if test "$ac_dir/$ac_word" = "/usr/ucb/cc"; then
@@ -811,7 +830,7 @@ fi
 fi
 
 echo $ac_n "checking whether we are using GNU C""... $ac_c" 1>&6
-echo "configure:815: checking whether we are using GNU C" >&5
+echo "configure:834: checking whether we are using GNU C" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_gcc'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -820,7 +839,7 @@ else
   yes;
 #endif
 EOF
-if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:824: \"$ac_try\") 1>&5; (eval $ac_try) 2>&5; }; } | egrep yes >/dev/null 2>&1; then
+if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:843: \"$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
@@ -835,7 +854,7 @@ if test $ac_cv_prog_gcc = yes; then
   ac_save_CFLAGS="$CFLAGS"
   CFLAGS=
   echo $ac_n "checking whether ${CC-cc} accepts -g""... $ac_c" 1>&6
-echo "configure:839: checking whether ${CC-cc} accepts -g" >&5
+echo "configure:858: checking whether ${CC-cc} accepts -g" >&5
 if eval "test \"`echo '$''{'ac_cv_prog_cc_g'+set}'`\" = set"; then
   echo $ac_n "(cached) $ac_c" 1>&6
 else
@@ -871,15 +890,16 @@ LD=${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:875: checking for $ac_word" >&5
+echo "configure:894: 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}:"
+  IFS="${IFS= 	}"; ac_save_ifs="$IFS"; IFS=":"
-  for ac_dir in $PATH; do
+  ac_dummy="$PATH"
+  for ac_dir in $ac_dummy; do
     test -z "$ac_dir" && ac_dir=.
     if test -f $ac_dir/$ac_word; then
       ac_cv_prog_RANLIB="ranlib"
@@ -901,6 +921,8 @@ fi
 case "${target}" in
   *)
         part_specific_obj=vr4300.o
+        script_list="eval sim"
+        bsp_list="libeval.a"
         ;;
 esac
 
@@ -915,6 +937,8 @@ 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
@@ -938,7 +962,7 @@ 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 |
-  case `(ac_space=' '; set) 2>&1 | grep ac_space` in
+  case `(ac_space=' '; set | grep ac_space) 2>&1` in
   *ac_space=\ *)
     # `set' does not quote correctly, so add quotes (double-quote substitution
     # turns \\\\ into \\, and sed turns \\ into \).
@@ -1017,7 +1041,7 @@ do
     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"
+    echo "$CONFIG_STATUS generated by autoconf version 2.13"
     exit 0 ;;
   -help | --help | --hel | --he | --h)
     echo "\$ac_cs_usage"; exit 0 ;;
@@ -1041,6 +1065,7 @@ s%@SHELL@%$SHELL%g
 s%@CFLAGS@%$CFLAGS%g
 s%@CPPFLAGS@%$CPPFLAGS%g
 s%@CXXFLAGS@%$CXXFLAGS%g
+s%@FFLAGS@%$FFLAGS%g
 s%@DEFS@%$DEFS%g
 s%@LDFLAGS@%$LDFLAGS%g
 s%@LIBS@%$LIBS%g
@@ -1075,6 +1100,7 @@ s%@build_cpu@%$build_cpu%g
 s%@build_vendor@%$build_vendor%g
 s%@build_os@%$build_os%g
 s%@INSTALL_PROGRAM@%$INSTALL_PROGRAM%g
+s%@INSTALL_SCRIPT@%$INSTALL_SCRIPT%g
 s%@INSTALL_DATA@%$INSTALL_DATA%g
 s%@CC@%$CC%g
 s%@AS@%$AS%g
@@ -1088,6 +1114,8 @@ s%@target_makefile_frag_path@%$target_makefile_frag_path%g
 /@target_makefile_frag@/r $target_makefile_frag
 s%@target_makefile_frag@%%g
 s%@part_specific_obj@%$part_specific_obj%g
+s%@script_list@%$script_list%g
+s%@bsp_list@%$bsp_list%g
 
 CEOF
 EOF
@@ -1096,7 +1124,7 @@ 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_max_sed_cmds=60 # 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.

libgloss/mn10300/configure.in

@@ -1,4 +1,4 @@
-# Copyright (c) 1995, 1996 Cygnus Support
+# Copyright (c) 1995, 1996, 2000 Cygnus Support
 #
 # The authors hereby grant permission to use, copy, modify, distribute,
 # and license this software and its documentation for any purpose, provided
@@ -85,6 +85,8 @@ AC_PROG_RANLIB
 case "${target}" in
   *)
         part_specific_obj=vr4300.o
+        script_list="eval sim"
+        bsp_list="libeval.a"
         ;;
 esac
 
@@ -102,6 +104,8 @@ target_makefile_frag_path=$target_makefile_frag
 AC_SUBST(target_makefile_frag_path)
 AC_SUBST_FILE(target_makefile_frag)
 AC_SUBST(part_specific_obj)
+AC_SUBST(script_list)
+AC_SUBST(bsp_list)
 
 AC_OUTPUT(Makefile,
 . ${libgloss_topdir}/config-ml.in,

libgloss/mn10300/crt0_cygmon.S

@@ -0,0 +1,95 @@
+/*
+ * crt0_cygmon.S -- Minimal startup file for MN10300 targets running Cygmon.
+ *
+ * Copyright (c) 1995, 1996, 1997, 2000 Red Hat, Inc.
+ *
+ * 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.
+ */
+
+/*
+ * This file contains the minimal startup code necessary.
+ * This will not do any hardware initialization.  It is assumed that we are talking to Cygmon
+ * and therefore the hardware will be initialized properly.
+ */
+
+/*
+ * Set up some room for a stack. We just grab a chunk of memory.
+ */
+#define STACK_SIZE  0x4000
+#define GLOBAL_SIZE 0x2000
+
+#define STARTUP_STACK_SIZE	0x0100
+
+	.comm	__memsize, 12
+	.comm	__lstack, STARTUP_STACK_SIZE
+	.comm	__stackbase,4
+
+	.section .text
+	.global	_start
+_start:
+	/*
+	 * Setup a small stack so we can run some C code,
+	 * and get the usable memory size.
+	 */
+	mov	__lstack,a0
+	add	STARTUP_STACK_SIZE-4,a0
+	mov	a0,sp
+
+	/*
+	 * zero out the bss section.
+	 */
+	.global	__memsize
+	.global	_get_mem_info
+zerobss:
+	mov	__bss_start, a0				# These variables are defined in the linker script
+	mov	_end, a1
+
+	cmp	a0, a1					# If no bss, then do nothing
+	beq	7f
+
+	clr	d0
+3:
+	movbu	d0,(a0)					# Clear a byte and bump pointer
+	inc	a0
+	cmp	a0, a1
+	bne	3b
+
+7:
+	/*
+	 * Setup the stack pointer -- 
+	 *    get_mem_info returns the top of memory, so just use that In
+	 *    addition, we must subtract 24 bytes for the 3 8 byte
+	 *    arguments to main, in case main wants to write them back to
+	 *    the stack.  The caller is supposed to allocate stack space
+	 *    for parameters in registers in the old MIPS ABIs.	 We must
+	 *    do this even though we aren't passing arguments, because
+	 *    main might be declared to have them.
+	 *    Some ports need a larger alignment for the stack, so we
+	 *    subtract 32, which satisifes the stack for the arguments and
+	 *    keeps the stack pointer better aligned.
+	 */
+	mov	__memsize, d0
+	call	_get_mem_info,[],0
+
+	sub	32, a0
+	mov	a0, sp
+
+	mov	__stackbase, a1
+	mov	a0, (a1)				# keep this for future ref
+
+	call	___main,[],0				# Call __main to run ctors/dtors
+	clr	d0
+	clr	d1
+	mov	d0, (4,sp)
+	call	_main,[],0				# Call main program
+	call	_exit,[],0
+	
+/* EOF crt0_cygmon.S */

libgloss/mn10300/crt0_redboot.S

@@ -0,0 +1,97 @@
+/*
+ * crt0_redboot.S -- Minimal startup file for MN10300 targets running Redboot.
+ *
+ * Copyright (c) 2001 Red Hat, Inc.
+ * Derived from crt0_cygmon.S - Copyright (c) 1995, 1996, 1997, 2000 Red Hat, Inc.
+ *
+ * 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.
+ */
+
+/*
+ * This file contains the minimal startup code necessary.
+ * This will not do any hardware initialization.  It is assumed that we are talking to Redboot
+ * and therefore the hardware will be initialized properly.
+ */
+
+/*
+ * Set up some room for a stack. We just grab a chunk of memory.
+ */
+#define STACK_SIZE  0x4000
+#define GLOBAL_SIZE 0x2000
+
+#define STARTUP_STACK_SIZE	0x0100
+
+	.comm	__memsize, 12
+	.comm	__lstack, STARTUP_STACK_SIZE
+	.comm	__stackbase,4
+
+	.section .text
+	.global	_start
+_start:
+	/*
+	 * Setup a small stack so we can run some C code,
+	 * and get the usable memory size.
+	 */
+	mov	__lstack,a0
+	add	STARTUP_STACK_SIZE-4,a0
+	mov	a0,sp
+
+	/*
+	 * zero out the bss section.
+	 */
+	.global	__memsize
+	.global	_get_mem_info
+zerobss:
+	mov	__bss_start, a0				# These variables are defined in the linker script
+	mov	_end, a1
+
+	cmp	a0, a1					# If no bss, then do nothing
+	beq	7f
+
+	clr	d0
+3:
+	movbu	d0,(a0)					# Clear a byte and bump pointer
+	inc	a0
+	cmp	a0, a1
+	bne	3b
+
+7:
+	/*
+	 * Setup the stack pointer -- 
+	 *    get_mem_info returns the top of memory, so just use that In
+	 *    addition, we must subtract 24 bytes for the 3 8 byte
+	 *    arguments to main, in case main wants to write them back to
+	 *    the stack.  The caller is supposed to allocate stack space
+	 *    for parameters in registers in the old MIPS ABIs.	 We must
+	 *    do this even though we aren't passing arguments, because
+	 *    main might be declared to have them.
+	 *    Some ports need a larger alignment for the stack, so we
+	 *    subtract 32, which satisifes the stack for the arguments and
+	 *    keeps the stack pointer better aligned.
+	 */
+	mov	__memsize, d0
+	call	_get_mem_info,[],0
+
+	sub	32, a0
+	mov	a0, sp
+
+	mov	__stackbase, a1
+	mov	a0, (a1)				# keep this for future ref
+
+	call	___main,[],0				# Call __main to run ctors/dtors
+	clr	d0
+	clr	d1
+	mov	d0, (4,sp)
+ 	or	0x0800,psw				# Enable interrupts
+	call	_main,[],0				# Call main program
+	call	_exit,[],0
+	
+/* EOF crt0_redboot.S */

libgloss/mn10300/cygmon.c

@@ -0,0 +1,73 @@
+/* cygmon.c -- Glue code for linking apps to run on top of Cygmon.
+ *
+ * Copyright (c) 1998, 1999, 2000, 2001 Red Hat, Inc.
+ *
+ * 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 <errno.h>
+
+// These need to be kept in sync with the definitions in Cygmon.
+#define SYS_meminfo     1001
+#include "syscall.h"
+
+/* Structure filled in by get_mem_info.  Only the size field is
+   actually used (by sbrk), so the others aren't even filled in.  */
+struct s_mem
+{
+  unsigned int size;
+  unsigned int icsize;
+  unsigned int dcsize;
+};
+
+// Perform a system call.
+// Unused parameters should be set to 0.
+int __trap0(unsigned long func, unsigned long p1, unsigned long p2, unsigned long p3)
+{
+  int ret = 0;
+#ifdef __AM33__
+  {
+    register unsigned long d0 asm ("d0") = func;
+    register unsigned long d1 asm ("d1") = p1;
+    register unsigned long d2 asm ("d2") = p2;
+    register unsigned long d3 asm ("d3") = p3;
+    asm volatile ("    syscall 0\n"
+		  "    nop"
+		  : "+d" (d0) : "d" (d1), "d" (d2), "d" (d3) : "memory");
+    ret = d0;
+  }
+#endif
+
+  if (func == SYS_exit)
+    {
+      while (1)
+        {
+          asm volatile (" .byte 0xff ");  // trigger a breakpoint to drop back into Cygmon
+        }
+    }
+
+  if (ret != 0)
+      errno = ret;
+
+  return ret;
+}
+
+void *
+get_mem_info (mem)
+     struct s_mem *mem;
+{
+  unsigned long totmem = 0, topmem = 0;
+  register int numbanks;
+
+  numbanks = __trap0(SYS_meminfo, (unsigned long)&totmem, (unsigned long)&topmem, 0);
+  mem->size = totmem;
+  return (void*)topmem;
+}

libgloss/mn10300/times.c

@@ -6,7 +6,7 @@
 
 
 clock_t
-times (struct tms *buffer)
+_times (struct tms *buffer)
 {
   return TRAP0 (SYS_times, buffer, 0, 0);
 }

libgloss/syscall.h

@@ -38,10 +38,12 @@
 #define SYS_argv	13
 
 /* These are extras added for one reason or another.  */
-#define SYS_chdir	14
+#define SYS_chdir	 14
-#define SYS_stat	15
+#define SYS_stat	 15
-#define SYS_chmod 	16
+#define SYS_chmod 	 16
-#define SYS_utime 	17
+#define SYS_utime 	 17
-#define SYS_time 	18
+#define SYS_time 	 18
-
+#define SYS_gettimeofday 19
+#define SYS_times	 20
+#define SYS_link	 21
 #endif