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2002-07-23 Stephane Carrez <stcarrez@nerim.fr> 

* README: Mention 68HC11/68HC12 support.
        * configure.in: Recognize m6811-elf and m6812-elf.
        * configure: Regenerated.
        * m68hc11/Makefile.in: New file.
        * m68hc11/configure.in: New file.
        * m68hc11/configure: New file.
        * m68hc11/crt0.S: New file.
        * m68hc11/sci-inout.S: New file for 68hc11/68hc12 sio.
        * m68hc11/sim-valid-m68hc11.ld: New file.
        * m68hc11/sim-valid-m68hc12.ld: New file.
        * m68hc11/syscalls.c: New file.
This commit is contained in:
Jeff Johnston 2002-07-23 21:56:27 +00:00
parent d254189b38
commit 63a93e9dd6
12 changed files with 2430 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

14
libgloss/ChangeLog
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@ -1,3 +1,17 @@
2002-07-23 Stephane Carrez <stcarrez@nerim.fr>
* README: Mention 68HC11/68HC12 support.
* configure.in: Recognize m6811-elf and m6812-elf.
* configure: Regenerated.
* m68hc11/Makefile.in: New file.
* m68hc11/configure.in: New file.
* m68hc11/configure: New file.
* m68hc11/crt0.S: New file.
* m68hc11/sci-inout.S: New file for 68hc11/68hc12 sio.
* m68hc11/sim-valid-m68hc11.ld: New file.
* m68hc11/sim-valid-m68hc12.ld: New file.
* m68hc11/syscalls.c: New file.
2002-07-22 Aldy Hernandez <aldyh@redhat.com>
* rs6000/simulator.S (gettimeofday): New.

1
libgloss/README
View File

@ -1,5 +1,6 @@
sparc - Fujitsu Sparclite board. Works on the ex930, ex931, ex933
hp74x - Hewlett Packard HP742 board. Also some support for the hp743.
m68hc11 - Motorola 68HC11 or 68HC12 support.
m68k - Motorola MVME135 and IDP board. For CPU32 systems.
pa - WinBond and Oki boards with a PA.
mips - R3000 support. Array Tech LSI33k based RAID disk controller.

48
libgloss/configure vendored
View File

@ -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=*)
@ -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 "x$prefix" != xNONE; then
CONFIG_SITE="$prefix/share/config.site $prefix/etc/config.site"
else
CONFIG_SITE="$ac_default_prefix/share/config.site $ac_default_prefix/etc/config.site"
if test -z "$sitefile"; then
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 $ac_default_prefix/etc/config.site"
fi
fi
else
CONFIG_SITE="$sitefile"
fi
for ac_site_file in $CONFIG_SITE; do
if test -r "$ac_site_file"; then
@ -567,7 +578,7 @@ ac_configure=$ac_aux_dir/configure # This should be Cygnus configure.
# 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""... $ac_c" 1>&6
echo "configure:571: checking for a BSD compatible install" >&5
echo "configure:582: checking for a BSD compatible install" >&5
if test -z "$INSTALL"; then
if eval "test \"`echo '$''{'ac_cv_path_install'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
@ -648,7 +659,7 @@ else { echo "configure: error: can not run $ac_config_sub" 1>&2; exit 1; }
fi
echo $ac_n "checking host system type""... $ac_c" 1>&6
echo "configure:652: checking host system type" >&5
echo "configure:663: checking host system type" >&5
host_alias=$host
case "$host_alias" in
@ -669,7 +680,7 @@ host_os=`echo $host | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
echo "$ac_t""$host" 1>&6
echo $ac_n "checking target system type""... $ac_c" 1>&6
echo "configure:673: checking target system type" >&5
echo "configure:684: checking target system type" >&5
target_alias=$target
case "$target_alias" in
@ -687,7 +698,7 @@ target_os=`echo $target | sed 's/^\([^-]*\)-\([^-]*\)-\(.*\)$/\3/'`
echo "$ac_t""$target" 1>&6
echo $ac_n "checking build system type""... $ac_c" 1>&6
echo "configure:691: checking build system type" >&5
echo "configure:702: checking build system type" >&5
build_alias=$build
case "$build_alias" in
@ -723,6 +734,9 @@ case "${target}" in
m32r-*-*)
configdirs="${configdirs} m32r testsuite"
;;
m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
configdirs="m68hc11 testsuite"
;;
m68*-*-*)
configdirs="${configdirs} m68k testsuite"
;;
@ -812,7 +826,7 @@ subdirs="$configdirs"
# 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:813: checking for $ac_word" >&5
echo "configure:830: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_prog_CC'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@ -842,7 +856,7 @@ if test -z "$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:843: checking for $ac_word" >&5
echo "configure:860: 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
@ -891,7 +905,7 @@ fi
fi
echo $ac_n "checking whether we are using GNU C""... $ac_c" 1>&6
echo "configure:892: checking whether we are using GNU C" >&5
echo "configure:909: checking whether we are using GNU C" >&5
if eval "test \"`echo '$''{'ac_cv_prog_gcc'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@ -900,7 +914,7 @@ else
yes;
#endif
EOF
if { ac_try='${CC-cc} -E conftest.c'; { (eval echo configure:901: \"$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:918: \"$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
@ -915,7 +929,7 @@ 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:916: checking whether ${CC-cc} accepts -g" >&5
echo "configure:933: checking whether ${CC-cc} accepts -g" >&5
if eval "test \"`echo '$''{'ac_cv_prog_cc_g'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@ -947,7 +961,7 @@ AS=${AS-as}
# Extract the first word of "ar", so it can be a program name with args.
set dummy ar; ac_word=$2
echo $ac_n "checking for $ac_word""... $ac_c" 1>&6
echo "configure:948: checking for $ac_word" >&5
echo "configure:965: checking for $ac_word" >&5
if eval "test \"`echo '$''{'ac_cv_prog_AR'+set}'`\" = set"; then
echo $ac_n "(cached) $ac_c" 1>&6
else
@ -981,7 +995,7 @@ LD=${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:982: checking for $ac_word" >&5
echo "configure:999: 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
@ -1196,7 +1210,7 @@ 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.

3
libgloss/configure.in
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@ -34,6 +34,9 @@ case "${target}" in
m32r-*-*)
configdirs="${configdirs} m32r testsuite"
;;
m68hc11-*-*|m6811-*-*|m68hc12-*-*|m6812-*-*)
configdirs="m68hc11 testsuite"
;;
m68*-*-*)
configdirs="${configdirs} m68k testsuite"
;;

175
libgloss/m68hc11/Makefile.in Normal file
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@ -0,0 +1,175 @@
# Copyright (c) 1995, 1996, 1997 Cygnus Support
# Copyright (c) 1999, 2000, 2001, 2002 Stephane Carrez
#
# 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 currently works with Motorola's 68HC11 based target boards.
# (should work with 68HC12 but not tested yet)
srcdir = @srcdir@
objdir = .
srcroot = $(srcdir)/../..
objroot = $(objdir)/../..
VPATH = $(srcdir) $(srcdir)/..
prefix = @prefix@
exec_prefix = @exec_prefix@
host_alias = @host_alias@
target_alias = @target_alias@
program_transform_name = @program_transform_name@
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 = qv
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`
SCRIPTS = sim-valid
OBJS = syscalls.o close.o fstat.o getpid.o isatty.o kill.o \
lseek.o open.o print.o stat.o \
unlink.o sci-inout.o
CFLAGS =
CRT0 = crt0.o
#
# here's all the generic target stuff
#
GEN_LDFLAGS= -L${srcdir}
BSP= libbcc.a
# Host specific makefile fragment comes in here.
@host_makefile_frag@
#
# build a test program for each target board. Just trying to get
# it to link is a good test, so we ignore all the errors for now.
#
all: ${CRT0} ${BSP}
#
# here's where we build the board support packages for each target
#
${BSP}: $(OBJS)
${AR} ${ARFLAGS} $@ $(OBJS)
${RANLIB} $@
syscalls.o: $(srcdir)/syscalls.c
$(CC) $(CFLAGS_FOR_TARGET) -O2 $(INCLUDES) -c $(CFLAGS) $<
close.o: $(srcdir)/../close.c
$(CC) $(CFLAGS_FOR_TARGET) -O2 $(INCLUDES) -c $(CFLAGS) $<
fstat.o: $(srcdir)/../fstat.c
$(CC) $(CFLAGS_FOR_TARGET) -O2 $(INCLUDES) -c $(CFLAGS) $<
getpid.o: $(srcdir)/../getpid.c
$(CC) $(CFLAGS_FOR_TARGET) -O2 $(INCLUDES) -c $(CFLAGS) $<
isatty.o: $(srcdir)/../isatty.c
$(CC) $(CFLAGS_FOR_TARGET) -O2 $(INCLUDES) -c $(CFLAGS) $<
kill.o: $(srcdir)/../kill.c
$(CC) $(CFLAGS_FOR_TARGET) -O2 $(INCLUDES) -c $(CFLAGS) $<
lseek.o: $(srcdir)/../lseek.c
$(CC) $(CFLAGS_FOR_TARGET) -O2 $(INCLUDES) -c $(CFLAGS) $<
open.o: $(srcdir)/../open.c
$(CC) $(CFLAGS_FOR_TARGET) -O2 $(INCLUDES) -c $(CFLAGS) $<
print.o: $(srcdir)/../print.c
$(CC) $(CFLAGS_FOR_TARGET) -O2 $(INCLUDES) -c $(CFLAGS) $<
putnum.o: $(srcdir)/../putnum.c
$(CC) $(CFLAGS_FOR_TARGET) -O2 $(INCLUDES) -c $(CFLAGS) $<
stat.o: $(srcdir)/../stat.c
$(CC) $(CFLAGS_FOR_TARGET) -O2 $(INCLUDES) -c $(CFLAGS) $<
unlink.o: $(srcdir)/../unlink.c
$(CC) $(CFLAGS_FOR_TARGET) -O2 $(INCLUDES) -c $(CFLAGS) $<
.PHONY: install info dvi doc install-info clean-info
clean mostlyclean:
rm -f a.out core *.[oais] *-test *.srec *.dis *.x syscall.h
distclean maintainer-clean realclean: clean
rm -f Makefile config.status *~
.PHONY: install info install-info clean-info
install: install-scripts
$(INSTALL_PROGRAM) $(CRT0) $(tooldir)/lib${MULTISUBDIR}/$(CRT0)
@for bsp in ${BSP}; do\
$(INSTALL_PROGRAM) $${bsp} $(tooldir)/lib${MULTISUBDIR}; \
done
# Install the linker script in the correct place.
install-scripts:
if [ -f ${objroot}/../binutils/objdump ] ; then \
objdump="${objroot}/../binutils/objdump"; \
else \
t='$(program_transform_name)'; \
objdump=`echo objdump | sed -e $$t`; \
fi ; \
name=`$$objdump -f $(CRT0) | sed '/^$$/d'`; \
case $$name in \
*elf32-m68hc11*) \
$(INSTALL_DATA) ${srcdir}/sim-valid-m68hc11.ld $(tooldir)/lib${MULTISUBDIR}/sim-valid.ld \
;; \
*elf32-m68hc12*) \
$(INSTALL_DATA) ${srcdir}/sim-valid-m68hc12.ld $(tooldir)/lib${MULTISUBDIR}/sim-valid.ld \
;; \
esac
doc:
info:
install-info:
clean-info:
Makefile: Makefile.in config.status @host_makefile_frag_path@
$(SHELL) config.status
config.status: configure
$(SHELL) config.status --recheck

1216
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91
libgloss/m68hc11/configure.in Normal file
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@ -0,0 +1,91 @@
dnl Process this file with autoconf to produce a configure script.
AC_PREREQ(2.5)dnl
AC_INIT(sci-inout.S)
if test "${enable_shared}" = "yes" ; then
echo "Shared libraries not supported for cross compiling, ignored"
fi
if test "$srcdir" = "." ; then
if test "${with_target_subdir}" != "." ; then
libgloss_topdir="${srcdir}/${with_multisrctop}../../.."
else
libgloss_topdir="${srcdir}/${with_multisrctop}../.."
fi
else
libgloss_topdir="${srcdir}/../.."
fi
AC_CONFIG_AUX_DIR($libgloss_topdir)
AC_CANONICAL_SYSTEM
AC_ARG_PROGRAM
AC_PROG_INSTALL
# 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=${LD-ld}
AC_SUBST(LD)
AC_PROG_RANLIB
host_makefile_frag=${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,
. ${libgloss_topdir}/config-ml.in,
srcdir=${srcdir}
target=${target}
ac_configure_args="${ac_configure_args} --enable-multilib"
CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
libgloss_topdir=${libgloss_topdir}
)

69
libgloss/m68hc11/crt0.S Normal file
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@ -0,0 +1,69 @@
/* Startup code for M68HC11/M68HC12.
* Copyright (C) 1999, 2000, 2001, 2002 Stephane Carrez (stcarrez@nerim.fr)
*
* 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.
*/
;-----------------------------------------
; startup code
;-----------------------------------------
.file "crt0.s"
;;
;;
;; The linker concatenate the .install* sections in the following order:
;;
;; .install0 Setup the stack pointer
;; .install1 Place holder for applications
;; .install2 Optional installation of data section in memory
;; .install3 Place holder for applications
;; .install4 Invokes the main
;;
.sect .install0,"ax",@progbits
.globl _start
_start:
;;
;; At this step, the stack is not initialized and interrupts are masked.
;; Applications only have 64 cycles to initialize some registers.
;;
;; To have a generic/configurable startup, initialize the stack to
;; the end of some memory region. The _stack symbol is defined by
;; the linker.
;;
lds #_stack
.sect .install2,"ax",@progbits
;;
;; Call a specific initialization operation. The default is empty.
;; It can be overriden by applications. It is intended to initialize
;; the 68hc11 registers. Function prototype is:
;;
;; int __premain(void);
;;
jsr __premain
;;
;;
;;
.sect .install4,"ax",@progbits
jsr main
fatal:
jsr exit
bra fatal
;-----------------------------------------
; end startup code
;-----------------------------------------
;; Force loading of data section mapping and bss clear
.globl __map_data_section
.globl __init_bss_section

134
libgloss/m68hc11/sci-inout.S Normal file
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@ -0,0 +1,134 @@
/* M68HC11/M68HC12 serial line operations
* Copyright (C) 1999, 2001 Stephane Carrez (stcarrez@nerim.fr)
*
* 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.
*/
#ifdef mc68hc12
SC0CR1 = 0xC2
SC0CR2 = 0xC3
SC0SR1 = 0xC4
SC0DRL = 0xC7
SC0BD = 0xC0
.sect .data
.globl _m68hc12_ports
_m68hc12_ports: .word 0
.sect .text
.globl outbyte
;;;
;;; int outbyte(char c);
;;;
;;; B : Character to send
;;;
outbyte:
bsr _sci_init
L1:
ldaa SC0SR1,x
bge L1
stab SC0DRL,x
ldab SC0CR2,x
orab #0x8
stab SC0CR2,x
rts
.sect .text
.globl inbyte
;;;
;;; char inbyte(void);
;;;
inbyte:
bsr _sci_init
ldaa SC0SR1,x
bita #0x20
beq inbyte
ldab SC0CR2,x
rts
.globl _sci_init
.sect .text
_sci_init:
ldx _m68hc12_ports
beq do_init
dex
rts
do_init:
ldx #0x1
stx _m68hc12_ports
dex
ldd #26
std SC0BD,x
ldaa #0
staa SC0CR1,x
ldaa #0xC
staa SC0CR2,x
rts
#else
BAUD = 0x2b
SCCR1= 0x2c
SCCR2= 0x2d
SCSR = 0x2e
SCDR = 0x2f
.sect .data
.globl _m68hc11_ports
_m68hc11_ports: .word 0
.sect .text
.globl outbyte
;;;
;;; int outbyte(char c);
;;;
;;; B : Character to send
;;;
outbyte:
bsr _sci_init
L1:
ldaa SCSR,x
bge L1
stab SCDR,x
ldab SCCR2,x
orab #0x8
stab SCCR2,x
rts
.sect .text
.globl inbyte
;;;
;;; char inbyte(void);
;;;
inbyte:
bsr _sci_init
ldaa SCSR,x
bita #0x20
beq inbyte
ldab SCDR,x
rts
.globl _sci_init
.sect .text
_sci_init:
ldx _m68hc11_ports
beq do_init
rts
do_init:
ldx #0x1000
stx _m68hc11_ports
ldaa #0x30
staa BAUD,x
clra
staa SCCR1,x
ldaa #0xC
staa SCCR2,x
rts
#endif

311
libgloss/m68hc11/sim-valid-m68hc11.ld Normal file
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@ -0,0 +1,311 @@
/* Linker script for 68HC11 executable (PROM). */
ENTRY(_start)
OUTPUT_FORMAT("elf32-m68hc11", "elf32-m68hc11", "elf32-m68hc11")
OUTPUT_ARCH(m68hc11)
GROUP(-lc -lbcc -lgcc)
SEARCH_DIR(.);
/* Fixed definition of the available memory banks.
See generic emulation script for a user defined configuration. */
/* The memory layout below is suitable for gcc validation.
It takes care of big programs allowing up to 48128 bytes
of text while allowing some programs that consume some
memory (comp-goto-1 requires the RAM to be set to 0x4400
to avoid head<->stack collision in malloc/sbrk). */
MEMORY
{
page0 (rwx) : ORIGIN = 0x00, LENGTH = 256
text (rx) : ORIGIN = 0x04400, LENGTH = 0x10000 - 0x4400
data : ORIGIN = 0x01100, LENGTH = 0x2000 - 0x1100
}
/* Setup the stack on the top of the data memory bank. */
PROVIDE (_stack = 0x04400 - 1);
SECTIONS
{
.hash : { *(.hash) }
.dynsym : { *(.dynsym) }
.dynstr : { *(.dynstr) }
.gnu.version : { *(.gnu.version) }
.gnu.version_d : { *(.gnu.version_d) }
.gnu.version_r : { *(.gnu.version_r) }
.rel.text :
{
*(.rel.text)
*(.rel.text.*)
*(.rel.gnu.linkonce.t.*)
}
.rela.text :
{
*(.rela.text)
*(.rela.text.*)
*(.rela.gnu.linkonce.t.*)
}
.rel.data :
{
*(.rel.data)
*(.rel.data.*)
*(.rel.gnu.linkonce.d.*)
}
.rela.data :
{
*(.rela.data)
*(.rela.data.*)
*(.rela.gnu.linkonce.d.*)
}
.rel.rodata :
{
*(.rel.rodata)
*(.rel.rodata.*)
*(.rel.gnu.linkonce.r.*)
}
.rela.rodata :
{
*(.rela.rodata)
*(.rela.rodata.*)
*(.rela.gnu.linkonce.r.*)
}
.rel.sdata :
{
*(.rel.sdata)
*(.rel.sdata.*)
*(.rel.gnu.linkonce.s.*)
}
.rela.sdata :
{
*(.rela.sdata)
*(.rela.sdata.*)
*(.rela.gnu.linkonce.s.*)
}
.rel.sbss :
{
*(.rel.sbss)
*(.rel.sbss.*)
*(.rel.gnu.linkonce.sb.*)
}
.rela.sbss :
{
*(.rela.sbss)
*(.rela.sbss.*)
*(.rel.gnu.linkonce.sb.*)
}
.rel.bss :
{
*(.rel.bss)
*(.rel.bss.*)
*(.rel.gnu.linkonce.b.*)
}
.rela.bss :
{
*(.rela.bss)
*(.rela.bss.*)
*(.rela.gnu.linkonce.b.*)
}
.rela.stext : { *(.rela.stest) }
.rela.etext : { *(.rela.etest) }
.rela.sdata : { *(.rela.sdata) }
.rela.edata : { *(.rela.edata) }
.rela.eit_v : { *(.rela.eit_v) }
.rela.ebss : { *(.rela.ebss) }
.rela.srodata : { *(.rela.srodata) }
.rela.erodata : { *(.rela.erodata) }
.rela.got : { *(.rela.got) }
.rela.ctors : { *(.rela.ctors) }
.rela.dtors : { *(.rela.dtors) }
.rela.init : { *(.rela.init) }
.rela.fini : { *(.rela.fini) }
.rela.plt : { *(.rela.plt) }
.rel.stext : { *(.rel.stest) }
.rel.etext : { *(.rel.etest) }
.rel.sdata : { *(.rel.sdata) }
.rel.edata : { *(.rel.edata) }
.rel.ebss : { *(.rel.ebss) }
.rel.eit_v : { *(.rel.eit_v) }
.rel.srodata : { *(.rel.srodata) }
.rel.erodata : { *(.rel.erodata) }
.rel.got : { *(.rel.got) }
.rel.ctors : { *(.rel.ctors) }
.rel.dtors : { *(.rel.dtors) }
.rel.init : { *(.rel.init) }
.rel.fini : { *(.rel.fini) }
.rel.plt : { *(.rel.plt) }
/* Concatenate .page0 sections. Put them in the page0 memory bank
unless we are creating a relocatable file. */
.page0 :
{
*(.page0)
*(.softregs)
} > page0
/* Start of text section. */
.stext :
{
*(.stext)
} > text
.init :
{
*(.init)
} =0
.text :
{
/* Put startup code at beginning so that _start keeps same address. */
/* Startup code. */
*(.install0) /* Section should setup the stack pointer. */
*(.install1) /* Place holder for applications. */
*(.install2) /* Optional installation of data sections in RAM. */
*(.install3) /* Place holder for applications. */
*(.install4) /* Section that calls the main. */
*(.init)
*(.text)
*(.text.*)
/* .gnu.warning sections are handled specially by elf32.em. */
*(.gnu.warning)
*(.gnu.linkonce.t.*)
/* Finish code. */
*(.fini0) /* Beginning of finish code (_exit symbol). */
*(.fini1) /* Place holder for applications. */
*(.fini2) /* C++ destructors. */
*(.fini3) /* Place holder for applications. */
*(.fini4) /* Runtime exit. */
_etext = .;
PROVIDE (etext = .);
} > text
.eh_frame :
{
*(.eh_frame)
} > text
.rodata :
{
*(.rodata)
*(.rodata.*)
*(.gnu.linkonce.r*)
} > text
.rodata1 :
{
*(.rodata1)
} > text
/* Constructor and destructor tables are in ROM. */
.ctors :
{
PROVIDE (__CTOR_LIST__ = .);
*(.ctors)
/* We don't want to include the .ctor section from
from the crtend.o file until after the sorted ctors.
The .ctor section from the crtend file contains the
end of ctors marker and it must be last
KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors))
KEEP (*(SORT(.ctors.*)))
KEEP (*(.ctors)) */
PROVIDE(__CTOR_END__ = .);
} > text
.dtors :
{
PROVIDE(__DTOR_LIST__ = .);
*(.dtors)
/*
KEEP (*crtbegin.o(.dtors))
KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))
KEEP (*(SORT(.dtors.*)))
KEEP (*(.dtors)) */
PROVIDE(__DTOR_END__ = .);
} > text
/* Start of the data section image in ROM. */
__data_image = .;
PROVIDE (__data_image = .);
/* All read-only sections that normally go in PROM must be above.
We construct the DATA image section in PROM at end of all these
read-only sections. The data image must be copied at init time.
Refer to GNU ld, Section 3.6.8.2 Output Section LMA. */
.data : AT (__data_image)
{
__data_section_start = .;
PROVIDE (__data_section_start = .);
*(.sdata)
*(.data)
*(.data.*)
*(.data1)
*(.gnu.linkonce.d.*)
CONSTRUCTORS
_edata = .;
PROVIDE (edata = .);
} > data
__data_section_size = SIZEOF(.data);
PROVIDE (__data_section_size = SIZEOF(.data));
__data_image_end = __data_image + __data_section_size;
/* SCz: this does not work yet... This is supposed to force the loading
of _map_data.o (from libgcc.a) when the .data section is not empty.
By doing so, this should bring the code that copies the .data section
from ROM to RAM at init time.
___pre_comp_data_size = SIZEOF(.data);
__install_data_sections = ___pre_comp_data_size > 0 ?
__map_data_sections : 0;
*/
/* .install :
{
. = _data_image_end;
} > text */
/* Relocation for some bss and data sections. */
.bss :
{
__bss_start = .;
*(.sbss)
*(.scommon)
*(.dynbss)
*(.bss)
*(.bss.*)
*(.gnu.linkonce.b.*)
*(COMMON)
PROVIDE (_end = .);
} > data
__bss_size = SIZEOF(.bss);
PROVIDE (__bss_size = SIZEOF(.bss));
/* If the 'vectors_addr' symbol is defined, it indicates the start address
of interrupt vectors. This depends on the 68HC11 operating mode:
Addr
Single chip 0xffc0
Extended mode 0xffc0
Bootstrap 0x00c0
Test 0xbfc0
In general, the vectors address is 0xffc0. This can be overriden
with the '-defsym vectors_addr=0xbfc0' ld option.
Note: for the bootstrap mode, the interrupt vectors are at 0xbfc0 but
they are redirected to 0x00c0 by the internal PROM. Application's vectors
must also consist of jump instructions (see Motorola's manual). */
PROVIDE (_vectors_addr = DEFINED (vectors_addr) ? vectors_addr : 0xffc0);
.vectors DEFINED (vectors_addr) ? vectors_addr : 0xffc0 :
{
*(.vectors)
}
/* 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.
Treatment of DWARF debug section must be at end of the linker
script to avoid problems when there are undefined symbols. It's necessary
to avoid that the DWARF section is relocated before such undefined
symbols are found. */
/* 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) *(.gnu.linkonce.wi.*) }
.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) }
}

311
libgloss/m68hc11/sim-valid-m68hc12.ld Normal file
View File

@ -0,0 +1,311 @@
/* Linker script for 68HC12 executable (PROM). */
ENTRY(_start)
OUTPUT_FORMAT("elf32-m68hc12", "elf32-m68hc12", "elf32-m68hc12")
OUTPUT_ARCH(m68hc12)
GROUP(-lc -lbcc -lgcc)
SEARCH_DIR(.);
/* Fixed definition of the available memory banks.
See generic emulation script for a user defined configuration. */
/* The memory layout below is suitable for gcc validation.
It takes care of big programs allowing up to 48128 bytes
of text while allowing some programs that consume some
memory (comp-goto-1 requires the RAM to be set to 0x4400
to avoid head<->stack collision in malloc/sbrk). */
MEMORY
{
page0 (rwx) : ORIGIN = 0x00, LENGTH = 256
text (rx) : ORIGIN = 0x04400, LENGTH = 0x10000 - 0x4400
data : ORIGIN = 0x01100, LENGTH = 0x2000 - 0x1100
}
/* Setup the stack on the top of the data memory bank. */
PROVIDE (_stack = 0x04400 - 1);
SECTIONS
{
.hash : { *(.hash) }
.dynsym : { *(.dynsym) }
.dynstr : { *(.dynstr) }
.gnu.version : { *(.gnu.version) }
.gnu.version_d : { *(.gnu.version_d) }
.gnu.version_r : { *(.gnu.version_r) }
.rel.text :
{
*(.rel.text)
*(.rel.text.*)
*(.rel.gnu.linkonce.t.*)
}
.rela.text :
{
*(.rela.text)
*(.rela.text.*)
*(.rela.gnu.linkonce.t.*)
}
.rel.data :
{
*(.rel.data)
*(.rel.data.*)
*(.rel.gnu.linkonce.d.*)
}
.rela.data :
{
*(.rela.data)
*(.rela.data.*)
*(.rela.gnu.linkonce.d.*)
}
.rel.rodata :
{
*(.rel.rodata)
*(.rel.rodata.*)
*(.rel.gnu.linkonce.r.*)
}
.rela.rodata :
{
*(.rela.rodata)
*(.rela.rodata.*)
*(.rela.gnu.linkonce.r.*)
}
.rel.sdata :
{
*(.rel.sdata)
*(.rel.sdata.*)
*(.rel.gnu.linkonce.s.*)
}
.rela.sdata :
{
*(.rela.sdata)
*(.rela.sdata.*)
*(.rela.gnu.linkonce.s.*)
}
.rel.sbss :
{
*(.rel.sbss)
*(.rel.sbss.*)
*(.rel.gnu.linkonce.sb.*)
}
.rela.sbss :
{
*(.rela.sbss)
*(.rela.sbss.*)
*(.rel.gnu.linkonce.sb.*)
}
.rel.bss :
{
*(.rel.bss)
*(.rel.bss.*)
*(.rel.gnu.linkonce.b.*)
}
.rela.bss :
{
*(.rela.bss)
*(.rela.bss.*)
*(.rela.gnu.linkonce.b.*)
}
.rela.stext : { *(.rela.stest) }
.rela.etext : { *(.rela.etest) }
.rela.sdata : { *(.rela.sdata) }
.rela.edata : { *(.rela.edata) }
.rela.eit_v : { *(.rela.eit_v) }
.rela.ebss : { *(.rela.ebss) }
.rela.srodata : { *(.rela.srodata) }
.rela.erodata : { *(.rela.erodata) }
.rela.got : { *(.rela.got) }
.rela.ctors : { *(.rela.ctors) }
.rela.dtors : { *(.rela.dtors) }
.rela.init : { *(.rela.init) }
.rela.fini : { *(.rela.fini) }
.rela.plt : { *(.rela.plt) }
.rel.stext : { *(.rel.stest) }
.rel.etext : { *(.rel.etest) }
.rel.sdata : { *(.rel.sdata) }
.rel.edata : { *(.rel.edata) }
.rel.ebss : { *(.rel.ebss) }
.rel.eit_v : { *(.rel.eit_v) }
.rel.srodata : { *(.rel.srodata) }
.rel.erodata : { *(.rel.erodata) }
.rel.got : { *(.rel.got) }
.rel.ctors : { *(.rel.ctors) }
.rel.dtors : { *(.rel.dtors) }
.rel.init : { *(.rel.init) }
.rel.fini : { *(.rel.fini) }
.rel.plt : { *(.rel.plt) }
/* Concatenate .page0 sections. Put them in the page0 memory bank
unless we are creating a relocatable file. */
.page0 :
{
*(.page0)
} > page0
/* Start of text section. */
.stext :
{
*(.stext)
} > text
.init :
{
*(.init)
} =0
.text :
{
/* Put startup code at beginning so that _start keeps same address. */
/* Startup code. */
*(.install0) /* Section should setup the stack pointer. */
*(.install1) /* Place holder for applications. */
*(.install2) /* Optional installation of data sections in RAM. */
*(.install3) /* Place holder for applications. */
*(.install4) /* Section that calls the main. */
*(.init)
*(.text)
*(.text.*)
/* .gnu.warning sections are handled specially by elf32.em. */
*(.gnu.warning)
*(.gnu.linkonce.t.*)
/* Finish code. */
*(.fini0) /* Beginning of finish code (_exit symbol). */
*(.fini1) /* Place holder for applications. */
*(.fini2) /* C++ destructors. */
*(.fini3) /* Place holder for applications. */
*(.fini4) /* Runtime exit. */
_etext = .;
PROVIDE (etext = .);
} > text
.eh_frame :
{
*(.eh_frame)
} > text
.rodata :
{
*(.rodata)
*(.rodata.*)
*(.gnu.linkonce.r*)
} > text
.rodata1 :
{
*(.rodata1)
} > text
/* Constructor and destructor tables are in ROM. */
.ctors :
{
PROVIDE (__CTOR_LIST__ = .);
*(.ctors)
/* We don't want to include the .ctor section from
from the crtend.o file until after the sorted ctors.
The .ctor section from the crtend file contains the
end of ctors marker and it must be last
KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors))
KEEP (*(SORT(.ctors.*)))
KEEP (*(.ctors)) */
PROVIDE(__CTOR_END__ = .);
} > text
.dtors :
{
PROVIDE(__DTOR_LIST__ = .);
*(.dtors)
/*
KEEP (*crtbegin.o(.dtors))
KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))
KEEP (*(SORT(.dtors.*)))
KEEP (*(.dtors)) */
PROVIDE(__DTOR_END__ = .);
} > text
/* Start of the data section image in ROM. */
__data_image = .;
PROVIDE (__data_image = .);
/* All read-only sections that normally go in PROM must be above.
We construct the DATA image section in PROM at end of all these
read-only sections. The data image must be copied at init time.
Refer to GNU ld, Section 3.6.8.2 Output Section LMA. */
.data : AT (__data_image)
{
__data_section_start = .;
PROVIDE (__data_section_start = .);
*(.sdata)
*(.data)
*(.data.*)
*(.data1)
*(.gnu.linkonce.d.*)
CONSTRUCTORS
_edata = .;
PROVIDE (edata = .);
} > data
__data_section_size = SIZEOF(.data);
PROVIDE (__data_section_size = SIZEOF(.data));
__data_image_end = __data_image + __data_section_size;
/* SCz: this does not work yet... This is supposed to force the loading
of _map_data.o (from libgcc.a) when the .data section is not empty.
By doing so, this should bring the code that copies the .data section
from ROM to RAM at init time.
___pre_comp_data_size = SIZEOF(.data);
__install_data_sections = ___pre_comp_data_size > 0 ?
__map_data_sections : 0;
*/
/* .install :
{
. = _data_image_end;
} > text */
/* Relocation for some bss and data sections. */
.bss :
{
__bss_start = .;
*(.softregs)
*(.sbss)
*(.scommon)
*(.dynbss)
*(.bss)
*(.bss.*)
*(.gnu.linkonce.b.*)
*(COMMON)
PROVIDE (_end = .);
} > data
__bss_size = SIZEOF(.bss);
PROVIDE (__bss_size = SIZEOF(.bss));
/* If the 'vectors_addr' symbol is defined, it indicates the start address
of interrupt vectors. This depends on the 68HC11 operating mode:
Addr
Single chip 0xffc0
Extended mode 0xffc0
Bootstrap 0x00c0
Test 0xbfc0
In general, the vectors address is 0xffc0. This can be overriden
with the '-defsym vectors_addr=0xbfc0' ld option.
Note: for the bootstrap mode, the interrupt vectors are at 0xbfc0 but
they are redirected to 0x00c0 by the internal PROM. Application's vectors
must also consist of jump instructions (see Motorola's manual). */
PROVIDE (_vectors_addr = DEFINED (vectors_addr) ? vectors_addr : 0xffc0);
.vectors DEFINED (vectors_addr) ? vectors_addr : 0xffc0 :
{
*(.vectors)
}
/* 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.
Treatment of DWARF debug section must be at end of the linker
script to avoid problems when there are undefined symbols. It's necessary
to avoid that the DWARF section is relocated before such undefined
symbols are found. */
/* 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) *(.gnu.linkonce.wi.*) }
.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) }
}

74
libgloss/m68hc11/syscalls.c Normal file
View File

@ -0,0 +1,74 @@
/* pseudo system calls for M68HC11 & M68HC12.
* Copyright (C) 1999, 2000, 2001, 2002 Stephane Carrez (stcarrez@nerim.fr)
*
* 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 <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
extern void outbyte(char c);
extern char inbyte(void);
int
read(int file, void *p, size_t nbytes)
{
int i = 0;
char* buf = (char*) p;
for (i = 0; i < nbytes; i++) {
*(buf + i) = inbyte();
if ((*(buf + i) == '\n') || (*(buf + i) == '\r')) {
i++;
break;
}
}
return (i);
}
int
write(int file, const void *p, size_t len)
{
const char *ptr = (const char*) p;
int todo;
for (todo = len; todo; --todo)
{
outbyte (*ptr++);
}
return(len);
}
void *
sbrk(size_t incr)
{
extern char _end; /* Defined by the linker */
static char *heap_end;
char *prev_heap_end;
register char *stack_ptr asm ("sp");
if (heap_end == 0)
{
heap_end = &_end;
}
prev_heap_end = heap_end;
if (heap_end + incr > stack_ptr)
{
write (1, "Heap and stack collision\n", 25);
abort ();
}
heap_end += incr;
return ((void*) prev_heap_end);
}
/* end of syscalls.c */