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author | Ranjith Kumaran <ranjith@cygnus.com> | 2000-03-17 22:48:54 +0000 |
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committer | Ranjith Kumaran <ranjith@cygnus.com> | 2000-03-17 22:48:54 +0000 |
commit | 03261851a10dd2d6900a0a00a7515a0a46fb5d76 (patch) | |
tree | 7c22ac6cbbc99fd5cd1b5426853be8d4fd7bfcf1 /libgloss/m68k | |
parent | fae4c299f14fc23e2829c8656992eba21f79242a (diff) | |
download | newlib-03261851a10dd2d6900a0a00a7515a0a46fb5d76.zip newlib-03261851a10dd2d6900a0a00a7515a0a46fb5d76.tar.gz newlib-03261851a10dd2d6900a0a00a7515a0a46fb5d76.tar.bz2 |
20000317 sourceware import
Diffstat (limited to 'libgloss/m68k')
29 files changed, 4631 insertions, 0 deletions
diff --git a/libgloss/m68k/Makefile.in b/libgloss/m68k/Makefile.in new file mode 100644 index 0000000..528c265 --- /dev/null +++ b/libgloss/m68k/Makefile.in @@ -0,0 +1,255 @@ +# 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. +# +# This currently works with Motorola's MVME135 and IDP m68k based +# target boards. +# + +VPATH = @srcdir@ +srcdir = @srcdir@ +objdir = . +srcroot = $(srcdir)/../.. +objroot = $(objdir)/../.. + +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 = mvme162 mvme135 idp bcc + +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 + +CFLAGS = -g +# ARFLAGS = rv + +CRT0 = crt0.o +# +# here's all the MVME135 target stuff +# +MVME_LDFLAGS= -L${srcdir} -Tmvme135.ld +MVME135_BSP= libmvme135.a +MVME162_BSP= libmvme162.a +#MVME135_OBJS= mvme.o +#MVME162_OBJS= mvme.o +# Uncomment the last two objects if you want to use the GDB stub. +# The stub is included "as is", and will likely take some hacking +# to work on your system. +MVME135_OBJS= cpu32bug.o # mvme-stub.o mvme135-asm.o +MVME162_OBJS= cpu32bug.o # mvme-stub.o mvme162lx-asm.o + + +# +# here's all the BCC target stuff +# +BCC_LDFLAGS= -L${srcdir} -Tbcc.ld +BCC_BSP= libbcc.a +BCC_OBJS= cpu32bug.o + +# +# here's all the IDP target stuff +# +IDP_LDFLAGS= -L${srcdir} -Tidp.ld +IDP_BSP= libidp.a +IDP_OBJS= leds.o idp-inbyte.o idp-outbyte.o mc68ec.o + +# +# here's all the DBUG target stuff +# +DBUG_BSP= libdbug.a +DBUG_OBJS= dbug-exit.o dbug-inbyte.o dbug-outbyte.o + +# 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} ${BCC_BSP} ${IDP_BSP} ${MVME135_BSP} ${MVME162_BSP} ${DBUG_BSP} + +# +# here's where we build the board support packages for each target +# +${BCC_BSP}: $(OBJS) ${BCC_OBJS} + ${AR} ${ARFLAGS} $@ $(OBJS) ${BCC_OBJS} + ${RANLIB} $@ + +${IDP_BSP}: $(OBJS) ${IDP_OBJS} + ${AR} ${ARFLAGS} $@ $(OBJS) ${IDP_OBJS} + ${RANLIB} $@ + +${DBUG_BSP}: $(OBJS) ${DBUG_OBJS} + ${AR} ${ARFLAGS} $@ $(OBJS) ${DBUG_OBJS} + ${RANLIB} $@ + +${MVME135_BSP}: $(OBJS) ${MVME135_OBJS} + ${AR} ${ARFLAGS} $@ $(OBJS) ${MVME135_OBJS} + ${RANLIB} $@ + +${MVME162_BSP}: $(OBJS) ${MVME162_OBJS} + ${AR} ${ARFLAGS} $@ $(OBJS) ${MVME162_OBJS} + ${RANLIB} $@ + +leds.o: ${srcdir}/leds.c + $(CC) $(CFLAGS_FOR_TARGET) $(INCLUDES) -c $< + +idp-inbyte.o: ${srcdir}/idp-inbyte.c + $(CC) $(CFLAGS_FOR_TARGET) $(INCLUDES) -c $< + +idp-outbyte.o: ${srcdir}/idp-outbyte.c + $(CC) $(CFLAGS_FOR_TARGET) $(INCLUDES) -c $< + +mc68ec.o: ${srcdir}/mc68ec.c + $(CC) $(CFLAGS_FOR_TARGET) $(INCLUDES) -c $< + +test.o: ${srcdir}/test.c + +# +# Make a simple test case to test the linker script, startup code, and +# I/O code +# +test: $(OBJS) idp-test.srec mvme135-test.srec bcc-test.srec \ + idp-test.dis mvme135-test.dis bcc-test.dis + @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. + +idp-test.x: test.o ${CRT0} Makefile ${IDP_BSP} + ${CC} $(CFLAGS_FOR_TARGET) -L${srcdir} -L${objdir} \ + test.o -o $@ $(LDFLAGS_FOR_TARGET) -N -Wl,-Tidp.ld +idp-test.srec: idp-test.x + $(OBJCOPY) -O srec idp-test.x $@ +idp-test.dis: idp-test.x + @rm -fr idp-test.dis + $(OBJDUMP) -d idp-test.x > $@ +idp-test: idp-test.srec idp-test.dis + +mvme135-test.x: test.o ${CRT0} ${srcdir}/mvme135.ld Makefile ${MVME135_BSP} + ${CC} -L${srcdir} -L${objdir} test.o -o $@ $(LDFLAGS_FOR_TARGET) \ + -N -Wl,-Tmvme135.ld -nostdlib +mvme135-test.srec: mvme135-test.x + $(OBJCOPY) -O srec mvme135-test.x $@ +mvme135-test.dis: mvme135-test.x + @rm -fr mvme135-test.dis + $(OBJDUMP) -d mvme135-test.x > $@ +mvme135-test: mvme135-test.srec mvme135-test.dis + +mvme162-test.x: test.o ${CRT0} ${srcdir}/mvme162.ld Makefile ${MVME162_BSP} + ${CC} -L${srcdir} -L${objdir} test.o -o $@ $(LDFLAGS_FOR_TARGET) \ + -N -Wl,-Tmvme162.ld -nostdlib +mvme162-test.srec: mvme162-test.x + $(OBJCOPY) -O srec mvme162-test.x $@ +mvme162-test.dis: mvme162-test.x + @rm -fr mvme162-test.dis + $(OBJDUMP) -d mvme162-test.x > $@ +mvme162-test: mvme162-test.srec mvme162-test.dis + +bcc-test.x: test.o ${CRT0} ${srcdir}/bcc.ld Makefile ${BCC_BSP} + ${CC} -L${srcdir} -L${objdir} test.o -o $@ $(LDFLAGS_FOR_TARGET) \ + -N -Wl,-Tbcc.ld -nostdlib +bcc-test.srec: bcc-test.x + $(OBJCOPY) -O srec bcc-test.x $@ +bcc-test.dis: bcc-test.x + @rm -fr bcc-test.dis + $(OBJDUMP) -d bcc-test.x > $@ +bcc-test: bcc-test.srec bcc-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 ${CRT0} ${srcdir}/mvme135.ld Makefile ${MVME135_BSP} + ${CC} -L${srcdir} -L${objdir} dtor.o -o $@ $(LIBS_FOR_TARGET) \ + -N -Wl,-Tmvme135.ld -nostdlib + + +.PHONY: install info dvi doc install-info clean-info +install: + $(INSTALL_PROGRAM) $(CRT0) $(tooldir)/lib${MULTISUBDIR}/$(CRT0) + # install BCC stuff + $(INSTALL_PROGRAM) $(BCC_BSP) $(tooldir)/lib${MULTISUBDIR}/$(BCC_BSP) + $(INSTALL_DATA) ${srcdir}/bcc.ld $(tooldir)/lib${MULTISUBDIR}/bcc.ld + # install IDP stuff + $(INSTALL_PROGRAM) $(IDP_BSP) $(tooldir)/lib${MULTISUBDIR}/$(IDP_BSP) + $(INSTALL_DATA) ${srcdir}/idp.ld $(tooldir)/lib${MULTISUBDIR}/idp.ld + # install MVME135 stuff + $(INSTALL_PROGRAM) $(MVME135_BSP) $(tooldir)/lib${MULTISUBDIR}/$(MVME135_BSP) + $(INSTALL_DATA) ${srcdir}/mvme135.ld $(tooldir)/lib${MULTISUBDIR}/mvme135.ld + # install MVME162lx stuff + $(INSTALL_PROGRAM) $(MVME162_BSP) $(tooldir)/lib${MULTISUBDIR}/$(MVME162_BSP) + $(INSTALL_DATA) ${srcdir}/mvme162.ld $(tooldir)/lib${MULTISUBDIR}/mvme162.ld + # install DBUG stuff + $(INSTALL_PROGRAM) $(DBUG_BSP) $(tooldir)/lib${MULTISUBDIR}/$(DBUG_BSP) + $(INSTALL_DATA) ${srcdir}/sbc5204.ld $(tooldir)/lib${MULTISUBDIR}/sbc5204.ld + $(INSTALL_DATA) ${srcdir}/sbc5206.ld $(tooldir)/lib${MULTISUBDIR}/sbc5206.ld + +# target specific makefile fragment comes in here. +@target_makefile_frag@ + +clean mostlyclean: + rm -f a.out core *.i *~ *.a *.o *-test *.srec *.dis *.x *.map + +distclean maintainer-clean realclean: clean + rm -f Makefile config.cache config.log config.status + +info dvi doc: +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/m68k/README b/libgloss/m68k/README new file mode 100644 index 0000000..28b7c12 --- /dev/null +++ b/libgloss/m68k/README @@ -0,0 +1,8 @@ +Support for the mvme162 was written by: + + Technische Universitaet Berlin fax: +49.30.314 21 116 + Axel Nennker, FR 2-2 phone: +49.30.314 73 114 + Franklinstr. 28-29 e-mail: nennker@cs.tu-berlin.de + D-10587 Berlin World Wide Web: http://www.cs.tu-berlin.de/~nennker + Germany http://www.cs.tu-berlin.de/~gnat + diff --git a/libgloss/m68k/asm.h b/libgloss/m68k/asm.h new file mode 100644 index 0000000..035024a --- /dev/null +++ b/libgloss/m68k/asm.h @@ -0,0 +1,85 @@ +/* asm.h -- macros for m68k asm + * + * 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. + */ + +#if 0 +/* + * XXX __USER_LABEL_PREFIX__ and __REGISTER_PREFIX__ do not work on gcc 2.7.0-3 + * XXX The following ifdef magic fixes the problem but results in a warning + * XXX when compiling assembly code. + */ +#ifndef __USER_LABEL_PREFIX__ +/* #define __USER_LABEL_PREFIX__ "" /* no underscore for coff */ +#define __USER_LABEL_PREFIX__ _ /* leading underscore for aout */ +#endif + +#ifndef __REGISTER_PREFIX__ +#define __REGISTER_PREFIX__ /* never has anything prefixed */ +#endif +#endif + +/* + * some assemblers choke on '#' as an immediate value. As gcc can also + * use '&', use that in those cases. + */ +#ifndef __IMMEDIATE_PREFIX__ +#define __IMMEDIATE_PREFIX__ # +#endif + +/* ANSI concatenation macros. */ +#define CONCAT1(a, b) CONCAT2(a, b) +#define CONCAT2(a, b) a ## b + +/* use the right prefix for global labels. */ +#define SYM(x) CONCAT1 (__USER_LABEL_PREFIX__,x) + +/* use the right prefix for registers. */ +#define REG(x) CONCAT1 (__REGISTER_PREFIX__,x) + +/* use the right prefix for immediate values. */ +#define IMM(x) CONCAT1 (__IMMEDIATE_PREFIX__,x) + +/* use the right prefix for register names */ +#define d0 REG (d0) +#define d1 REG (d1) +#define d2 REG (d2) +#define d3 REG (d3) +#define d4 REG (d4) +#define d5 REG (d5) +#define d6 REG (d6) +#define d7 REG (d7) +#define a0 REG (a0) +#define a1 REG (a1) +#define a2 REG (a2) +#define a3 REG (a3) +#define a4 REG (a4) +#define a5 REG (a5) +#define a6 REG (a6) +#define a7 REG (a7) +#define fp REG (fp) +#define fp0 REG (fp0) +#define fp1 REG (fp1) +#define fp2 REG (fp2) +#define fp3 REG (fp3) +#define fp4 REG (fp4) +#define fp5 REG (fp5) +#define fp6 REG (fp6) +#define fp7 REG (fp7) +#define sp REG (sp) +#define usp REG (usp) +#define vbr REG (vbr) +#define sr REG (sr) +#define fpcr REG (fpcr) +#define fpsr REG (fpsr) +#define fpi REG (fpi) diff --git a/libgloss/m68k/bcc.ld b/libgloss/m68k/bcc.ld new file mode 100644 index 0000000..65f6441 --- /dev/null +++ b/libgloss/m68k/bcc.ld @@ -0,0 +1,127 @@ +STARTUP(crt0.o) +OUTPUT_ARCH(m68k) +/* Uncomment this if you want srecords. This is needed for a.out + * if you plan to use GDB. +OUTPUT_FORMAT(srec) + */ +SEARCH_DIR(.) +GROUP(-lbcc -lc -lgcc) +__DYNAMIC = 0; + +/* + * Setup the memory map of the M68332BCC Business Card Computer. + * stack grows down from high memory. + * + * The memory map look like this: + * +--------------------+ <- low memory + * | .text | + * | _etext | + * | ctor list | the ctor and dtor lists are for + * | dtor list | C++ support + * +--------------------+ + * | .data | initialized data goes here + * | _edata | + * +--------------------+ + * | .bss | + * | __bss_start | start of bss, cleared by crt0 + * | _end | start of heap, used by sbrk() + * +--------------------+ + * . . + * . . + * . . + * | __stack | top of stack + * +--------------------+ + */ +MEMORY +{ + ram (rwx) : ORIGIN = 0x3000, LENGTH = 0xd000 +} + +/* + * allocate the stack to be at the top of memory, since the stack + * grows down + */ + +PROVIDE (__stack = 0xd000); + +/* + * 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); +/* + * stick everything in ram (of course) + */ +SECTIONS +{ + .text : + { + *(.text) + . = ALIGN(0x4); + __CTOR_LIST__ = .; + ___CTOR_LIST__ = .; + LONG((__CTOR_END__ - __CTOR_LIST__) / 4 - 2) + *(.ctors) + LONG(0) + __CTOR_END__ = .; + __DTOR_LIST__ = .; + ___DTOR_LIST__ = .; + LONG((__DTOR_END__ - __DTOR_LIST__) / 4 - 2) + *(.dtors) + LONG(0) + __DTOR_END__ = .; + *(.rodata) + *(.gcc_except_table) + + . = ALIGN(0x2); + __INIT_SECTION__ = . ; + LONG (0x4e560000) /* linkw %fp,#0 */ + *(.init) + SHORT (0x4e5e) /* unlk %fp */ + SHORT (0x4e75) /* rts */ + + __FINI_SECTION__ = . ; + LONG (0x4e560000) /* linkw %fp,#0 */ + *(.fini) + SHORT (0x4e5e) /* unlk %fp */ + SHORT (0x4e75) /* rts */ + + _etext = .; + *(.lit) + } > ram + + .data : + { + *(.shdata) + *(.data) + _edata = .; + } > ram + + .bss : + { + . = ALIGN(0x4); + __bss_start = . ; + *(.shbss) + *(.bss) + *(COMMON) + _end = ALIGN (0x8); + __end = _end; + } > ram + + .stab 0 (NOLOAD) : + { + *(.stab) + } + + .stabstr 0 (NOLOAD) : + { + *(.stabstr) + } +} diff --git a/libgloss/m68k/configure b/libgloss/m68k/configure new file mode 100755 index 0000000..3ebe855 --- /dev/null +++ b/libgloss/m68k/configure @@ -0,0 +1,1118 @@ +#! /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 "$ac_help"; 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+ + -program-transform-name | --program-transform-name \ + | --program-transform-nam | --program-transform-na \ + | --program-transform-n | --program-transform- \ + | --program-transform | --program-transfor \ + | --program-transfo | --program-transf \ + | --program-trans | --program-tran \ + | --progr-tra | --program-tr | --program-t) + ac_prev=program_transform_name ;; + -program-transform-name=* | --program-transform-name=* \ + | --program-transform-nam=* | --program-transform-na=* \ + | --program-transform-n=* | --program-transform-=* \ + | --program-transform=* | --program-transfor=* \ + | --program-transfo=* | --program-transf=* \ + | --program-trans=* | --program-tran=* \ + | --progr-tra=* | --program-tr=* | --program-t=*) + program_transform_name="$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" ;; 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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 "${LANG+set}" = set; then LANG=C; export LANG; fi + +# confdefs.h avoids OS command line length limits that DEFS can exceed. +rm -rf conftest* confdefs.h +# AIX cpp loses on an empty file, so make sure it contains at least a newline. +echo > confdefs.h + +# A filename unique to this package, relative to the directory that +# configure is in, which we can look for to find out if srcdir is correct. +ac_unique_file=crt0.S + +# Find the source files, if location was not specified. +if test -z "$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" + . 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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 $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""... $ac_c" 1>&6 + +host_alias=$host +case "$host_alias" in +NONE) + case $nonopt in + NONE) + if host_alias=`$ac_config_guess`; then : + else { echo "configure: error: can not guess host type; you must specify one" 1>&2; exit 1; } + fi ;; + *) host_alias=$nonopt ;; + esac ;; +esac + +host=`$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""... $ac_c" 1>&6 + +target_alias=$target +case "$target_alias" in +NONE) + case $nonopt in + NONE) target_alias=$host_alias ;; + *) target_alias=$nonopt ;; + esac ;; +esac + +target=`$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""... $ac_c" 1>&6 + +build_alias=$build +case "$build_alias" in +NONE) + case $nonopt in + NONE) build_alias=$host_alias ;; + *) build_alias=$nonopt ;; + esac ;; +esac + +build=`$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=${target_alias}- + +if test "$program_transform_name" = s,x,x,; then + program_transform_name= +else + # Double any \ or $. echo might interpret backslashes. + cat <<\EOF_SED > conftestsed +s,\\,\\\\,g; s,\$,$$,g +EOF_SED + program_transform_name="`echo $program_transform_name|sed -f conftestsed`" + rm -f conftestsed +fi +test "$program_prefix" != NONE && + program_transform_name="s,^,${program_prefix},; $program_transform_name" +# Use a double $ so make ignores it. +test "$program_suffix" != NONE && + program_transform_name="s,\$\$,${program_suffix},; $program_transform_name" + +# sed with no file args requires a program. +test "$program_transform_name" = "" && program_transform_name="s,x,x," + + +# 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:802: \"$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 +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 +# 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%@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@%$build_os%g +s%@INSTALL_PROGRAM@%$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 $host_makefile_frag +s%@host_makefile_frag@%%g +s%@target_makefile_frag_path@%$target_makefile_frag_path%g +/@target_makefile_frag@/r $target_makefile_frag +s%@target_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 + +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} $CONFIG_STATUS || exit 1 + + diff --git a/libgloss/m68k/configure.in b/libgloss/m68k/configure.in new file mode 100644 index 0000000..1770226 --- /dev/null +++ b/libgloss/m68k/configure.in @@ -0,0 +1,68 @@ +# Copyright (c) 1995, 1996 Cygnus Support +# +# The authors hereby grant permission to use, copy, modify, distribute, +# and license this software and its documentation for any purpose, provided +# that existing copyright notices are retained in all copies and that this +# notice is included verbatim in any distributions. No written agreement, +# license, or royalty fee is required for any of the authorized uses. +# Modifications to this software may be copyrighted by their authors +# and need not follow the licensing terms described here, provided that +# the new terms are clearly indicated on the first page of each file where +# they apply. +# +# process this file with autoconf to produce a configure script. +AC_PREREQ(2.5)dnl +AC_INIT(crt0.S) + +if test "${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="${with_multisrctop}../../.." + else + libgloss_topdir="${with_multisrctop}../.." + fi +else + libgloss_topdir="${srcdir}/../.." +fi + +AC_CONFIG_AUX_DIR($libgloss_topdir) +AC_CANONICAL_SYSTEM +AC_ARG_PROGRAM + +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 +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_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/m68k/cpu32bug.S b/libgloss/m68k/cpu32bug.S new file mode 100644 index 0000000..39f31d4 --- /dev/null +++ b/libgloss/m68k/cpu32bug.S @@ -0,0 +1,118 @@ +/* + * cpu32bug.S -- board support for the CPU32BUG monitor. + * + * 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" +#include "cpu32bug.h" + + .title "cpu32bug.S for m68k-coff" + + .text + .global SYM (_exit) + .global SYM (outln) + .global SYM (outbyte) + .global SYM (putDebugChar) + .global SYM (inbyte) + .global SYM (getDebugChar) + .global SYM (havebyte) + +/* + * _exit -- Exit from the application. Normally we cause a user trap + * to return to the ROM monitor for another run. + */ + .text + .align 2 +SYM (_exit): + link fp, IMM(0) + trap IMM(15) + .word RETURN + +/* + * inbyte -- get a byte from the serial port + * d0 - contains the byte read in + */ + .text + .align 2 +SYM (getDebugChar): /* symbol name used by m68k-stub */ +SYM (inbyte): + link fp, IMM(-8) + trap IMM(15) + .word INCHR + moveb sp@, d0 + extw d0 + extl d0 + unlk fp + rts + +/* + * outbyte -- sends a byte out the serial port + * d0 - contains the byte to be sent + */ + .text + .align 2 +SYM (putDebugChar): /* symbol name used by m68k-stub */ +SYM (outbyte): + link fp, IMM(-4) + moveb fp@(11), sp@ + trap IMM(15) + .word OUTCHR + unlk fp + rts + +/* + * outln -- sends a string of bytes out the serial port with a CR/LF + * a0 - contains the address of the string's first byte + * a1 - contains the address of the string's last byte + */ + .text + .align 2 +SYM (outln): + link fp, IMM(-8) + moveml a0/a1, sp@ + trap IMM(15) + .word OUTLN + unlk fp + rts + +/* + * outstr -- sends a string of bytes out the serial port without a CR/LF + * a0 - contains the address of the string's first byte + * a1 - contains the address of the string's last byte + */ + .text + .align 2 +SYM (outstr): + link fp, IMM(-8) + moveml a0/a1, sp@ + trap IMM(15) + .word OUTSTR + unlk fp + rts + +/* + * havebyte -- checks to see if there is a byte in the serial port, + * returns 1 if there is a byte, 0 otherwise. + */ + .text + .align 2 +SYM (havebyte): + trap IMM(15) + .word INSTAT + beqs empty + movel IMM(1), d0 + rts +empty: + movel IMM(0), d0 + rts diff --git a/libgloss/m68k/cpu32bug.h b/libgloss/m68k/cpu32bug.h new file mode 100644 index 0000000..583b1a9 --- /dev/null +++ b/libgloss/m68k/cpu32bug.h @@ -0,0 +1,35 @@ +/* + * These constants are for the M68332BCC's boot monitor. They + * are used with a TRAP 15 call to access the monitor's I/O routines. + * they must be in the word following the trap call. + */ + INCHR=0X0 + INSTAT=0X1 + INLN=0X2 + READSTR=0X3 + READLN=0X4 + CHKBRK=0X5 + + OUTCHR=0X20 + OUTSTR=0X21 + OUTLN=0X22 + WRITE=0X23 + WRITELN=0X24 + WRITDLN=0X25 + PCRLF=0X26 + ERASELN=0X27 + WRITD=0X28 + SNDBRK=0X29 + + TM_INI=0X40 + TM_STR0=0X41 + TM_RD=0X42 + DELAY=0X43 + + RETURN=0X63 + BINDEC=0X64 + + CHANGEV=0X67 + STRCMP=0X68 + MULU32=0X69 + DIVU32=0X6A diff --git a/libgloss/m68k/crt0.S b/libgloss/m68k/crt0.S new file mode 100644 index 0000000..cb78481 --- /dev/null +++ b/libgloss/m68k/crt0.S @@ -0,0 +1,143 @@ +/* + * crt0.S -- startup file for m68k-coff + * + * 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" + + .title "crt0.S for m68k-coff" +#define STACKSIZE 0x4000 + +/* + * Define an empty environment. + */ + .data + .align 2 +SYM (environ): + .long 0 + + .align 2 + .text + +/* + * These symbols are defined in C code, so they need to always be + * named with SYM because of the difference between object file formats. + */ + +/* These are defined in C code. */ + .extern SYM (main) + .extern SYM (exit) + .extern SYM (hardware_init_hook) + .extern SYM (software_init_hook) + .extern SYM (atexit) + .extern SYM(__do_global_dtors) + +/* + * These values are set in the linker script, so they must be + * explicitly named here without SYM. + */ + .extern __stack + .extern __bss_start + .extern _end + +/* + * set things up so the application will run. This *must* be called start. + */ + .global SYM (start) + +SYM (start): + /* + * put any hardware init code here + */ + + /* See if user supplied their own stack (__stack != 0). If not, then + * default to using the value of %sp as set by the ROM monitor. + */ + movel IMM(__stack), a0 + cmpl IMM(0), a0 + jbeq 1f + movel a0, sp +1: + /* set up initial stack frame */ + link a6, IMM(-8) + +/* + * zero out the bss section. + */ + movel IMM(__bss_start), d1 + movel IMM(_end), d0 + cmpl d0, d1 + jbeq 3f + movl d1, a0 + subl d1, d0 + subql IMM(1), d0 +2: + clrb (a0)+ +#ifndef __mcf5200__ + dbra d0, 2b + clrw d0 + subql IMM(1), d0 + jbcc 2b +#else + subql IMM(1), d0 + jbpl 2b +#endif + +3: + +/* + * initialize target specific stuff. Only execute these + * functions it they exist. + */ + lea SYM (hardware_init_hook), a0 + cmpl IMM(0),a0 + jbeq 4f + jsr (a0) +4: + + lea SYM (software_init_hook), a0 + cmpl IMM(0),a0 + jbeq 5f + jsr (a0) +5: + +/* + * call the main routine from the application to get it going. + * main (argc, argv, environ) + * we pass argv as a pointer to NULL. + */ + +#ifdef ADD_DTORS + /* put __do_global_dtors in the atexit list so the destructors get run */ + movel IMM (SYM(__do_global_dtors)),(sp) + jsr SYM (atexit) +#endif + movel IMM (__FINI_SECTION__),(sp) + jsr SYM (atexit) + + jsr __INIT_SECTION__ + + pea 0 + pea SYM (environ) + pea sp@(4) + pea 0 + jsr SYM (main) + movel d0, sp@- + +/* + * drop down into exit incase the user doesn't. This should drop + * control back to the ROM monitor, if there is one. This calls the + * exit() from the C library so the C++ tables get cleaned up right. + */ + jsr SYM (exit) diff --git a/libgloss/m68k/dbug-exit.S b/libgloss/m68k/dbug-exit.S new file mode 100644 index 0000000..6baae8b --- /dev/null +++ b/libgloss/m68k/dbug-exit.S @@ -0,0 +1,29 @@ +/* + * dbug-exit.S -- + * + * 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 "asm.h" + + .text + .global SYM (_exit) +/* + * _exit -- Exit from the application. Normally we cause a user trap + * to return to the ROM monitor for another run. + */ + .text + .align 2 +SYM (_exit): + moveql IMM(0),d0 + trap IMM(15) diff --git a/libgloss/m68k/dbug-inbyte.S b/libgloss/m68k/dbug-inbyte.S new file mode 100644 index 0000000..128c260 --- /dev/null +++ b/libgloss/m68k/dbug-inbyte.S @@ -0,0 +1,34 @@ +/* + * dbug-inbyte.S -- + * + * 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 "asm.h" + + .text + .global SYM (inbyte) + .global SYM (getDebugChar) + +/* + * inbyte -- get a byte from the serial port + * d0 - contains the byte read in + */ + .text + .align 2 +SYM (getDebugChar): /* symbol name used by m68k-stub */ +SYM (inbyte): + movel IMM(0x10),d0 + trap IMM(15) + movel d1,d0 + rts diff --git a/libgloss/m68k/dbug-outbyte.S b/libgloss/m68k/dbug-outbyte.S new file mode 100644 index 0000000..9d0c864 --- /dev/null +++ b/libgloss/m68k/dbug-outbyte.S @@ -0,0 +1,34 @@ +/* + * dbug-outbyte.S -- + * + * 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 "asm.h" + + .text + .global SYM (outbyte) + .global SYM (putDebugChar) + +/* + * outbyte -- sends a byte out the serial port + * d0 - contains the byte to be sent + */ + .text + .align 2 +SYM (putDebugChar): /* symbol name used by m68k-stub */ +SYM (outbyte): + movel sp@(4),d1 + movl IMM(0x13),d0 + trap IMM(15) + rts diff --git a/libgloss/m68k/dtor.C b/libgloss/m68k/dtor.C new file mode 100644 index 0000000..2cfcb46 --- /dev/null +++ b/libgloss/m68k/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/m68k/idp-inbyte.c b/libgloss/m68k/idp-inbyte.c new file mode 100644 index 0000000..41db57f --- /dev/null +++ b/libgloss/m68k/idp-inbyte.c @@ -0,0 +1,41 @@ +/* idp-inbyte.c -- + * 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 <_ansi.h> +#include "mc68681reg.h" + +/* + * The DUART is mapped into the IDP address space in an unusual + * manner. The mc68681 is an 8 bit device located on the least + * significant byte (byte0) of the data bus. Bytes 3, 2, and + * one have nothing in them and writes to these locations are + * not valid. + */ + +#define DUART_ADDR 0x00B00000 +#define READREG(x) (*((volatile char *) DUART_ADDR + (x * 4) + 3)) +#define WRITEREG(x, y) (*((char *) DUART_ADDR + (x * 4) + 3) = y) + +/* + * inbyte -- get a byte from the DUART RX buffer. This only reads + * from channel A + */ +char +_DEFUN_VOID (inbyte) +{ + while ((READREG (DUART_SRA) & 0x01) == 0x00) + ; + + return (READREG (DUART_RBA)); /* read the byte */ +} diff --git a/libgloss/m68k/idp-outbyte.c b/libgloss/m68k/idp-outbyte.c new file mode 100644 index 0000000..d09ae89 --- /dev/null +++ b/libgloss/m68k/idp-outbyte.c @@ -0,0 +1,42 @@ +/* idp-outbyte.c + * 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 <_ansi.h> +#include "mc68681reg.h" + +/* + * The DUART is mapped into the IDP address space in an unusual + * manner. The mc68681 is an 8 bit device located on the least + * significant byte (byte0) of the data bus. Bytes 3, 2, and + * one have nothing in them and writes to these locations are + * not valid. + */ + +#define DUART_ADDR 0x00B00000 +#define READREG(x) (*((volatile char *) DUART_ADDR + (x * 4) + 3)) +#define WRITEREG(x, y) (*((char *) DUART_ADDR + (x * 4) + 3) = y) + +/* + * outbyte -- send a byte to the DUART buffer. This only sends + * to channel A. + */ +void +_DEFUN (outbyte, (byte), + char byte) +{ + while ((READREG (DUART_SRA) & 0x04) == 0x00) + ; + + WRITEREG (DUART_TBA, byte); /* write the byte */ +} diff --git a/libgloss/m68k/idp.ld b/libgloss/m68k/idp.ld new file mode 100644 index 0000000..db6d8c5 --- /dev/null +++ b/libgloss/m68k/idp.ld @@ -0,0 +1,146 @@ +STARTUP(crt0.o) +OUTPUT_ARCH(m68k) +/* Uncomment this if you want srecords. This is needed for a.out + * if you plan to use GDB. +OUTPUT_FORMAT(srec) + */ + +SEARCH_DIR(.) +GROUP(-lidp -lc -lgcc) +__DYNAMIC = 0; + +/* + * Setup the memory map of the MC68ec0x0 Board (IDP) + * stack grows down from high memory. This works for + * both the rom68k and the mon68k monitors. + * + * The memory map look like this: + * +--------------------+ <- low memory + * | .text | + * | _etext | + * | ctor list | the ctor and dtor lists are for + * | dtor list | C++ support + * +--------------------+ + * | .data | initialized data goes here + * | _edata | + * +--------------------+ + * | .bss | + * | __bss_start | start of bss, cleared by crt0 + * | _end | start of heap, used by sbrk() + * +--------------------+ + * . . + * . . + * . . + * | __stack | top of stack + * +--------------------+ + */ + +/* + * When the IDP is not remapped (see rom68k's MP command in the + * "M68EC0x0IDP Users Manual", the first 64K bytes are reserved; + * Otherwise the first 256K bytes are reserved. + * + * The following memory map describes a unmapped IDP w/2MB RAM. + */ + +MEMORY +{ + ram (rwx) : ORIGIN = 0x00010000, LENGTH = 2M-64K + rom0 : ORIGIN = 0x00800000, LENGTH = 1M + rom1 : ORIGIN = 0x00900000, LENGTH = 1M +} + +/* + * allocate the stack to be at the top of memory, since the stack + * grows down + */ + +PROVIDE (__stack = 2M - 8); + +/* + * 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); +/* + * stick everything in ram (of course) + */ +SECTIONS +{ + .text : + { + CREATE_OBJECT_SYMBOLS + *(.text) + + . = ALIGN(0x4); + /* These are for running static constructors and destructors under ELF. */ + KEEP (*crtbegin.o(.ctors)) + KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors)) + KEEP (*(SORT(.ctors.*))) + KEEP (*(.ctors)) + KEEP (*crtbegin.o(.dtors)) + KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors)) + KEEP (*(SORT(.dtors.*))) + KEEP (*(.dtors)) + + *(.rodata) + + . = ALIGN(0x4); + *(.gcc_except_table) + + . = ALIGN(0x4); + *(.eh_frame) + + . = ALIGN(0x4); + __INIT_SECTION__ = . ; + LONG (0x4e560000) /* linkw %fp,#0 */ + *(.init) + SHORT (0x4e5e) /* unlk %fp */ + SHORT (0x4e75) /* rts */ + + . = ALIGN(0x4); + __FINI_SECTION__ = . ; + LONG (0x4e560000) /* linkw %fp,#0 */ + *(.fini) + SHORT (0x4e5e) /* unlk %fp */ + SHORT (0x4e75) /* rts */ + + _etext = .; + *(.lit) + } > ram + + .data : + { + *(.shdata) + *(.data) + _edata = .; + } > ram + + .bss : + { + . = ALIGN(0x4); + __bss_start = . ; + *(.shbss) + *(.bss) + *(COMMON) + _end = ALIGN (0x8); + __end = _end; + } > ram + + .stab 0 (NOLOAD) : + { + *(.stab) + } + + .stabstr 0 (NOLOAD) : + { + *(.stabstr) + } +} diff --git a/libgloss/m68k/leds.c b/libgloss/m68k/leds.c new file mode 100644 index 0000000..125ae8b --- /dev/null +++ b/libgloss/m68k/leds.c @@ -0,0 +1,81 @@ +/* + * leds.c -- control the led's on a Motorola mc68ec0x0 board. + * + * 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 "leds.h" + +void zylons(); +void led_putnum(); + +/* + * led_putnum -- print a hex number on the LED. the value of num must be a char with + * the ascii value. ie... number 0 is '0', a is 'a', ' ' (null) clears + * the led display. + * Setting the bit to 0 turns it on, 1 turns it off. + * the LED's are controlled by setting the right bit mask in the base + * address. + * The bits are: + * [d.p | g | f | e | d | c | b | a ] is the byte. + * + * The locations are: + * + * a + * ----- + * f | | b + * | g | + * ----- + * | | + * e | | c + * ----- + * d . d.p (decimal point) + */ +void +led_putnum ( num ) +char num; +{ + static unsigned char *leds = (unsigned char *)LED_ADDR; + static unsigned char num_bits [18] = { + 0xff, /* clear all */ + 0xc0, 0xf9, 0xa4, 0xb0, 0x99, 0x92, 0x82, 0xf8, 0x80, 0x98, /* numbers 0-9 */ + 0x98, 0x20, 0x3, 0x27, 0x21, 0x4, 0xe /* letters a-f */ + }; + + if (num >= '0' && num <= '9') + num = (num - '0') + 1; + + if (num >= 'a' && num <= 'f') + num = (num - 'a') + 12; + + if (num == ' ') + num = 0; + + *leds = num_bits[num]; +} + +/* + * zylons -- draw a rotating pattern. NOTE: this function never returns. + */ +void +zylons() +{ + unsigned char *leds = (unsigned char *)LED_ADDR; + unsigned char curled = 0xfe; + + while (1) + { + *leds = curled; + curled = (curled >> 1) | (curled << 7); + delay ( 200 ); + } +} diff --git a/libgloss/m68k/leds.h b/libgloss/m68k/leds.h new file mode 100644 index 0000000..919c381 --- /dev/null +++ b/libgloss/m68k/leds.h @@ -0,0 +1,36 @@ +/* leds.c -- control the led's on a Motorola mc68ec0x0 board. + * Written by rob@cygnus.com (Rob Savoye) + * + * 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. + */ + +#ifndef __LEDS_H__ +#define __LEDS_H__ + +#define LED_ADDR 0xd00003 +#define LED_0 ~0x1 +#define LED_1 ~0x2 +#define LED_2 ~0x4 +#define LED_3 ~0x8 +#define LED_4 ~0x10 +#define LED_5 ~0x20 +#define LED_6 ~0x40 +#define LED_7 ~0x80 +#define LEDS_OFF 0xff +#define LEDS_ON 0x0 + +#define FUDGE(x) ((x >= 0xa && x <= 0xf) ? (x + 'a') & 0x7f : (x + '0') & 0x7f) + +extern void led_putnum( char ); + +#endif /* __LEDS_H__ */ diff --git a/libgloss/m68k/mc68681reg.h b/libgloss/m68k/mc68681reg.h new file mode 100644 index 0000000..1d9d4ce --- /dev/null +++ b/libgloss/m68k/mc68681reg.h @@ -0,0 +1,43 @@ +/* mc68681reg.h -- Motorola mc68681 DUART register offsets. + * 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. + */ + +#define DUART_MR1A 0x00 /* Mode Register A */ +#define DUART_MR1A 0x00 /* Mode Register A */ +#define DUART_SRA 0x01 /* Status Register A */ +#define DUART_CSRA 0x01 /* Clock-Select Register A */ +#define DUART_CRA 0x02 /* Command Register A */ +#define DUART_RBA 0x03 /* Receive Buffer A */ +#define DUART_TBA 0x03 /* Transmit Buffer A */ +#define DUART_IPCR 0x04 /* Input Port Change Register */ +#define DUART_ACR 0x04 /* Auxiliary Control Register */ +#define DUART_ISR 0x05 /* Interrupt Status Register */ +#define DUART_IMR 0x05 /* Interrupt Mask Register */ +#define DUART_CUR 0x06 /* Counter Mode: current MSB */ +#define DUART_CTUR 0x06 /* Counter/Timer upper reg */ +#define DUART_CLR 0x07 /* Counter Mode: current LSB */ +#define DUART_CTLR 0x07 /* Counter/Timer lower reg */ +#define DUART_MR1B 0x08 /* Mode Register B */ +#define DUART_MR2B 0x08 /* Mode Register B */ +#define DUART_SRB 0x09 /* Status Register B */ +#define DUART_CSRB 0x09 /* Clock-Select Register B */ +#define DUART_CRB 0x0A /* Command Register B */ +#define DUART_RBB 0x0B /* Receive Buffer B */ +#define DUART_TBB 0x0B /* Transmit Buffer A */ +#define DUART_IVR 0x0C /* Interrupt Vector Register */ +#define DUART_IP 0x0D /* Input Port */ +#define DUART_OPCR 0x0D /* Output Port Configuration Reg. */ +#define DUART_STRTCC 0x0E /* Start-Counter command */ +#define DUART_OPRSET 0x0E /* Output Port Reg, SET bits */ +#define DUART_STOPCC 0x0F /* Stop-Counter command */ +#define DUART_OPRRST 0x0F /* Output Port Reg, ReSeT bits */ diff --git a/libgloss/m68k/mc68ec.c b/libgloss/m68k/mc68ec.c new file mode 100644 index 0000000..d5ee9b5 --- /dev/null +++ b/libgloss/m68k/mc68ec.c @@ -0,0 +1,48 @@ +/* mc68ec.c -- Low level support for the Motorola mc68ec0x0 board. + * Written by rob@cygnus.com (Rob Savoye) + * + * 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 <sys/types.h> +#include <sys/stat.h> +#include <_ansi.h> +#include <errno.h> +#include "leds.h" + +/* + * _exit -- exit the running program. We just cause an exception + * which makes the program return to the boot monitor + * prompt. It can be restarted from there. + */ +void +_DEFUN (_exit, (status), + int_status) +{ + /* Use `i' constraint to get proper immediate-operand syntax for + target assembler configuration. */ + asm ("trap %0" : : "i" (0)); /* seems to be a harmless vector number */ +} + +/* + * delay -- delay execution. This is an ugly hack. It should + * use the timer, but I'm waiting for docs. (sigh) + */ +void +_DEFUN (delay, (num), + int num) +{ + while (num--) + { + asm ("nop"); + } +} diff --git a/libgloss/m68k/mvme-stub.c b/libgloss/m68k/mvme-stub.c new file mode 100644 index 0000000..fbc4c61 --- /dev/null +++ b/libgloss/m68k/mvme-stub.c @@ -0,0 +1,734 @@ +unsigned long sp_ptr; +unsigned long pc_ptr; +int cnt; +#define UNWIND asm ("movel %/sp, %0" : "=g" (sp_ptr));\ + printf ("\n\t\t== Starting at 0x%x ==\n", sp_ptr);\ + for (cnt=4; cnt <=32; cnt+=4) {\ + printf ("+%d(0x%x): 0x%x\t\t-%d(0x%x): 0x%x\n",\ + cnt, (sp_ptr + cnt), *(unsigned long *)(sp_ptr + cnt),\ + cnt, (sp_ptr - cnt), *(unsigned long *)(sp_ptr - cnt)\ + ); }; fflush (stdout); + +/**************************************************************************** + + 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 $ + * + * 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. + * + * Some explanation is probably necessary to explain how exceptions are + * handled. When an exception is encountered the 68000 pushes the current + * program counter and status register onto the supervisor stack and then + * transfers execution to a location specified in it's vector table. + * The handlers for the exception vectors are hardwired to jmp to an address + * given by the relation: (exception - 256) * 6. These are decending + * addresses starting from -6, -12, -18, ... By allowing 6 bytes for + * each entry, a jsr, jmp, bsr, ... can be used to enter the exception + * handler. Using a jsr to handle an exception has an added benefit of + * allowing a single handler to service several exceptions and use the + * return address as the key differentiation. The vector number can be + * computed from the return address by [ exception = (addr + 1530) / 6 ]. + * The sole purpose of the routine _catchException is to compute the + * exception number and push it on the stack in place of the return address. + * The external function exceptionHandler() is + * used to attach a specific handler to a specific 68k exception. + * For 68020 machines, the ability to have a return address around just + * so the vector can be determined is not necessary because the '020 pushes an + * extra word onto the stack containing the vector offset + * + * Because gdb will sometimes write to the stack area to execute function + * calls, this program cannot rely on using the supervisor stack so it + * uses it's own stack area reserved in the int array remcomStack. + * + ************* + * + * 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) + * + * 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 <stdio.h> +#include <string.h> +#include <setjmp.h> +#include <_ansi.h> + +/************************************************************************ + * + * external low-level support routines + */ +typedef void (*ExceptionHook)(int); /* pointer to function with int parm */ +typedef void (*Function)(); /* pointer to a function */ + +extern int putDebugChar(); /* write a single character */ +extern char getDebugChar(); /* read and return a single char */ + +ExceptionHook exceptionHook; /* hook variable for errors/exceptions */ + +/************************/ +/* FORWARD DECLARATIONS */ +/************************/ +/** static void initializeRemcomErrorFrame PARAMS ((void)); **/ +static void _DEFUN_VOID (initializeRemcomErrorFrame); + +/************************************************************************/ +/* BUFMAX defines the maximum number of characters in inbound/outbound buffers*/ +/* at least NUMREGBYTES*2 are needed for register packets */ +#define BUFMAX 400 + +static char initialized; /* boolean flag. != 0 means we've been initialized */ + +int remote_debug = 0; /*** Robs Thu Sep 24 22:18:51 PDT 1992 ***/ +/* debug > 0 prints ill-formed commands in valid packets & checksum errors */ + +static const char hexchars[]="0123456789abcdef"; + +/* there are 180 bytes of registers on a 68020 w/68881 */ +/* many of the fpa registers are 12 byte (96 bit) registers */ +#define NUMREGBYTES 180 +enum regnames {D0,D1,D2,D3,D4,D5,D6,D7, + A0,A1,A2,A3,A4,A5,A6,A7, + PS,PC, + FP0,FP1,FP2,FP3,FP4,FP5,FP6,FP7, + FPCONTROL,FPSTATUS,FPIADDR + }; + +typedef struct FrameStruct +{ + struct FrameStruct *previous; + int exceptionPC; /* pc value when this frame created */ + int exceptionVector; /* cpu vector causing exception */ + short frameSize; /* size of cpu frame in words */ + short sr; /* for 68000, this not always sr */ + int pc; + short format; + int fsaveHeader; + int morejunk[0]; /* exception frame, fp save... */ +} Frame; + +#define FRAMESIZE 500 +int gdbFrameStack[FRAMESIZE]; +Frame *lastFrame; + +/* + * these should not be static cuz they can be used outside this module + */ +int registers[NUMREGBYTES/4]; +int superStack; + +#define STACKSIZE 10000 +int remcomStack[STACKSIZE/sizeof(int)]; +int* stackPtr = &remcomStack[STACKSIZE/sizeof(int) - 1]; + +/* + * In many cases, the system will want to continue exception processing + * when a continue command is given. + * oldExceptionHook is a function to invoke in this case. + */ + +static ExceptionHook oldExceptionHook; + +/* the size of the exception stack on the 68020 varies with the type of + * exception. The following table is the number of WORDS used + * for each exception format. + */ +const short exceptionSize[] = { 4,4,6,4,4,4,4,4,29,10,16,46,12,4,4,4 }; + +/************* jump buffer used for setjmp/longjmp **************************/ +jmp_buf remcomEnv; + +#define BREAKPOINT() asm(" trap #1"); + +extern void _DEFUN_VOID (return_to_super); +extern void _DEFUN_VOID (return_to_user); +extern void _DEFUN_VOID (_catchException); + +void _returnFromException( Frame *frame ) +{ + /* if no passed in frame, use the last one */ + if (! frame) + { + frame = lastFrame; + frame->frameSize = 4; + frame->format = 0; + frame->fsaveHeader = -1; /* restore regs, but we dont have fsave info*/ + } + +#ifndef mc68020 + /* a 68000 cannot use the internal info pushed onto a bus error + * or address error frame when doing an RTE so don't put this info + * onto the stack or the stack will creep every time this happens. + */ + frame->frameSize=3; +#endif + + /* throw away any frames in the list after this frame */ + lastFrame = frame; + + frame->sr = registers[(int) PS]; + frame->pc = registers[(int) PC]; + + if (registers[(int) PS] & 0x2000) + { + /* return to supervisor mode... */ + return_to_super(); + } + else + { /* return to user mode */ + return_to_user(); + } +} + +int hex(ch) +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 $<data>#<checksum> */ +void getpacket(buffer) +char * buffer; +{ + unsigned char checksum; + unsigned char xmitcsum; + int i; + int count; + char ch; + + if (remote_debug) { + printf("\nGETPACKET: sr=0x%x, pc=0x%x, sp=0x%x\n", + registers[ PS ], + registers[ PC ], + registers[ A7 ] + ); fflush (stdout); + UNWIND + } + + do { + /* wait around for the start character, ignore all other characters */ + while ((ch = getDebugChar()) != '$'); + checksum = 0; + xmitcsum = -1; + + count = 0; + + /* now, read until a # or end of buffer is found */ + while (count < BUFMAX) { + ch = getDebugChar(); + if (ch == '#') break; + checksum = checksum + ch; + buffer[count] = ch; + count = count + 1; + } + buffer[count] = 0; + + if (ch == '#') { + xmitcsum = hex(getDebugChar()) << 4; + xmitcsum += hex(getDebugChar()); + if ((remote_debug ) && (checksum != xmitcsum)) { + fprintf(stderr,"bad checksum. My count = 0x%x, sent=0x%x. buf=%s\n", + checksum,xmitcsum,buffer); + } + + 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. The host get's one chance to read it. + This routine does not wait for a positive acknowledge. */ + +void putpacket(buffer) +char * buffer; +{ + unsigned char checksum; + int count; + 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 % 16]); + + if (remote_debug) { + printf("\nPUTPACKET: sr=0x%x, pc=0x%x, sp=0x%x\n", + registers[ PS ], + registers[ PC ], + registers[ A7 ] + ); fflush (stdout); + UNWIND + } + +/*** } while (getDebugChar() != '+'); ***/ +/** } while (1 == 0); (getDebugChar() != '+'); **/ + +} + +char remcomInBuffer[BUFMAX]; +char remcomOutBuffer[BUFMAX]; +static short error; + + +void debug_error(format, parm) +char * format; +char * parm; +{ + if (remote_debug) fprintf(stderr,format,parm); +} + +/* convert the memory pointed to by mem into hex, placing result in buf */ +/* return a pointer to the last char put in buf (null) */ +char* mem2hex(mem, buf, count) +char* mem; +char* buf; +int count; +{ + int i; + unsigned char ch; + for (i=0;i<count;i++) { + ch = *mem++; + *buf++ = hexchars[ch >> 4]; + *buf++ = hexchars[ch % 16]; + } + *buf = 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 */ +char* hex2mem(buf, mem, count) +char* buf; +char* mem; +int count; +{ + int i; + unsigned char ch; + for (i=0;i<count;i++) { + ch = hex(*buf++) << 4; + ch = ch + hex(*buf++); + *mem++ = ch; + } + return(mem); +} + +/* a bus error has occurred, perform a longjmp + to return execution and allow handling of the error */ + +void handle_buserror() +{ + longjmp(remcomEnv,1); +} + +/* this function takes the 68000 exception number and attempts to + translate this number into a unix compatible signal value */ +int computeSignal( exceptionVector ) +int exceptionVector; +{ + int sigval; + switch (exceptionVector) { + case 2 : sigval = 10; break; /* bus error */ + case 3 : sigval = 10; break; /* address error */ + case 4 : sigval = 4; break; /* illegal instruction */ + case 5 : sigval = 8; break; /* zero divide */ + case 6 : sigval = 16; break; /* chk instruction */ + case 7 : sigval = 16; break; /* trapv instruction */ + case 8 : sigval = 11; break; /* privilege violation */ + case 9 : sigval = 5; break; /* trace trap */ + case 10: sigval = 4; break; /* line 1010 emulator */ + case 11: sigval = 4; break; /* line 1111 emulator */ + case 13: sigval = 8; break; /* floating point err */ + case 31: sigval = 2; break; /* interrupt */ + case 33: sigval = 5; break; /* breakpoint */ + case 40: sigval = 8; break; /* floating point err */ + case 48: sigval = 8; break; /* floating point err */ + case 49: sigval = 8; break; /* floating point err */ + case 50: sigval = 8; break; /* zero divide */ + case 51: sigval = 8; break; /* underflow */ + case 52: sigval = 8; break; /* operand error */ + case 53: sigval = 8; break; /* overflow */ + case 54: sigval = 8; break; /* NAN */ + default: + sigval = 7; /* "software generated"*/ + } + return (sigval); +} + +/**********************************************/ +/* WHILE WE FIND NICE HEX CHARS, BUILD AN INT */ +/* RETURN NUMBER OF CHARS PROCESSED */ +/**********************************************/ +int hexToInt(char **ptr, int *intValue) +{ + int numChars = 0; + int hexValue; + + *intValue = 0; + + while (**ptr) + { + hexValue = hex(**ptr); + if (hexValue >=0) + { + *intValue = (*intValue <<4) | hexValue; + numChars ++; + } + else + break; + + (*ptr)++; + } + + return (numChars); +} + +/* + * This function does all command procesing for interfacing to gdb. + */ +void handle_exception(int exceptionVector) +{ + int sigval; + int addr, length; + char * ptr; + int newPC; + Frame *frame; + + if (remote_debug) printf("\nHANDLE_EXCEPTION: vector=%d, sr=0x%x, pc=0x%x, sp=0x%x\n", + exceptionVector, + registers[ PS ], + registers[ PC ], + registers[ A7 ] + ); fflush (stdout); + + /* reply to host that an exception has occurred */ + sigval = computeSignal( exceptionVector ); + remcomOutBuffer[0] = 'S'; + remcomOutBuffer[1] = hexchars[sigval >> 4]; + remcomOutBuffer[2] = hexchars[sigval % 16]; + remcomOutBuffer[3] = 0; + + putpacket(remcomOutBuffer); + + while (1==1) { + error = 0; + remcomOutBuffer[0] = 0; + getpacket(remcomInBuffer); + switch (remcomInBuffer[0]) { + case '?' : remcomOutBuffer[0] = 'S'; + remcomOutBuffer[1] = hexchars[sigval >> 4]; + remcomOutBuffer[2] = hexchars[sigval % 16]; + remcomOutBuffer[3] = 0; + break; + case 'd' : remote_debug = !(remote_debug); /* toggle debug flag */ + break; + case 'g' : /* return the value of the CPU registers */ + mem2hex((char*) registers, remcomOutBuffer, NUMREGBYTES); + break; + case 'G' : /* set the value of the CPU registers - return OK */ + hex2mem(&remcomInBuffer[1], (char*) registers, NUMREGBYTES); + strcpy(remcomOutBuffer,"OK"); + break; + + /* mAA..AA,LLLL Read LLLL bytes at address AA..AA */ + case 'm' : + if (setjmp(remcomEnv) == 0) + { + exceptionHandler(2,handle_buserror); + + /* TRY TO READ %x,%x. IF SUCCEED, SET PTR = 0 */ + ptr = &remcomInBuffer[1]; + if (hexToInt(&ptr,&addr)) + if (*(ptr++) == ',') + if (hexToInt(&ptr,&length)) + { + ptr = 0; + mem2hex((char*) addr, remcomOutBuffer, length); + } + + if (ptr) + { + strcpy(remcomOutBuffer,"E01"); + debug_error("malformed read memory command: %s",remcomInBuffer); + } + } + else { + exceptionHandler(2,_catchException); + strcpy(remcomOutBuffer,"E03"); + debug_error("bus error"); + } + + /* restore handler for bus error */ + exceptionHandler(2,_catchException); + break; + + /* MAA..AA,LLLL: Write LLLL bytes at address AA.AA return OK */ + case 'M' : + if (setjmp(remcomEnv) == 0) { + exceptionHandler(2,handle_buserror); + + /* TRY TO READ '%x,%x:'. IF SUCCEED, SET PTR = 0 */ + ptr = &remcomInBuffer[1]; + if (hexToInt(&ptr,&addr)) + if (*(ptr++) == ',') + if (hexToInt(&ptr,&length)) + if (*(ptr++) == ':') + { + hex2mem(ptr, (char*) addr, length); + ptr = 0; + strcpy(remcomOutBuffer,"OK"); + } + if (ptr) + { + strcpy(remcomOutBuffer,"E02"); + debug_error("malformed write memory command: %s",remcomInBuffer); + } + } + else { + exceptionHandler(2,_catchException); + strcpy(remcomOutBuffer,"E03"); + debug_error("bus error"); + } + + /* restore handler for bus error */ + exceptionHandler(2,_catchException); + break; + + /* cAA..AA Continue at address AA..AA(optional) */ + /* sAA..AA Step one instruction from AA..AA(optional) */ + case 'c' : + case 's' : + /* try to read optional parameter, pc unchanged if no parm */ + ptr = &remcomInBuffer[1]; + if (hexToInt(&ptr,&addr)) + registers[ PC ] = addr; + + newPC = registers[ PC]; + + /* clear the trace bit */ + registers[ PS ] &= 0x7fff; + + /* set the trace bit if we're stepping */ + if (remcomInBuffer[0] == 's') registers[ PS ] |= 0x8000; + + /* + * look for newPC in the linked list of exception frames. + * if it is found, use the old frame it. otherwise, + * fake up a dummy frame in returnFromException(). + */ + if (remote_debug) printf("new pc = 0x%x\n",newPC); + frame = lastFrame; + while (frame) + { + if (remote_debug) + printf("frame at 0x%x has pc=0x%x, except#=%d\n", + frame,frame->exceptionPC, + frame->exceptionVector); + if (frame->exceptionPC == newPC) break; /* bingo! a match */ + /* + * for a breakpoint instruction, the saved pc may + * be off by two due to re-executing the instruction + * replaced by the trap instruction. Check for this. + */ + if ((frame->exceptionVector == 33) && + (frame->exceptionPC == (newPC+2))) break; + if (frame == frame->previous) + { + frame = 0; /* no match found */ + break; + } + frame = frame->previous; + } + + /* + * If we found a match for the PC AND we are not returning + * as a result of a breakpoint (33), + * trace exception (9), nmi (31), jmp to + * the old exception handler as if this code never ran. + */ + if (frame) + { + if ((frame->exceptionVector != 9) && + (frame->exceptionVector != 31) && + (frame->exceptionVector != 33)) + { + /* + * invoke the previous handler. + */ + if (oldExceptionHook) + (*oldExceptionHook) (frame->exceptionVector); + newPC = registers[ PC ]; /* pc may have changed */ + if (newPC != frame->exceptionPC) + { + if (remote_debug) + printf("frame at 0x%x has pc=0x%x, except#=%d\n", + frame,frame->exceptionPC, + frame->exceptionVector); + /* re-use the last frame, we're skipping it (longjump?)*/ + frame = (Frame *) 0; + _returnFromException( frame ); /* this is a jump */ + } + } + } + + /* if we couldn't find a frame, create one */ + if (frame == 0) + { + frame = lastFrame -1 ; + + /* by using a bunch of print commands with breakpoints, + it's possible for the frame stack to creep down. If it creeps + too far, give up and reset it to the top. Normal use should + not see this happen. + */ + if ((unsigned int) (frame-2) < (unsigned int) &gdbFrameStack) + { + initializeRemcomErrorFrame(); + frame = lastFrame; + } + frame->previous = lastFrame; + lastFrame = frame; + frame = 0; /* null so _return... will properly initialize it */ + } + + _returnFromException( frame ); /* this is a jump */ + + break; + + /* kill the program */ + case 'k' : /* do nothing */ + break; + } /* switch */ + + /* reply to the request */ + putpacket(remcomOutBuffer); + } +} + + +void initializeRemcomErrorFrame() +{ + lastFrame = ((Frame *) &gdbFrameStack[FRAMESIZE-1]) - 1; + lastFrame->previous = lastFrame; +} + +/* this function is used to set up exception handlers for tracing and + breakpoints */ +void set_debug_traps() +{ +extern void _debug_level7(); +extern void remcomHandler(); +int exception; + + initializeRemcomErrorFrame(); + stackPtr = &remcomStack[STACKSIZE/sizeof(int) - 1]; + + setup_vectors(); + + if (oldExceptionHook != remcomHandler) + { + oldExceptionHook = exceptionHook; + exceptionHook = remcomHandler; + } + + initialized = 1; + +} +/* 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) BREAKPOINT(); +} diff --git a/libgloss/m68k/mvme.S b/libgloss/m68k/mvme.S new file mode 100644 index 0000000..d2ab37f --- /dev/null +++ b/libgloss/m68k/mvme.S @@ -0,0 +1,155 @@ +/* mvme.S -- board support for m68k + * + * 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" + + .title "mvme.S for m68k-coff" + + .align 2 + .text + .global SYM (_exit) + .global SYM (outln) + .global SYM (outbyte) + .global SYM (putDebugChar) + .global SYM (inbyte) + .global SYM (getDebugChar) + .global SYM (havebyte) + .global SYM (exceptionHandler) + + .set vbr_size, 0x400 + .comm SYM (vbr_table), vbr_size + +/* + * _exit -- Exit from the application. Normally we cause a user trap + * to return to the ROM monitor for another run. + */ +SYM (_exit): + unlk a6 + trap IMM(15) + .word return + + .align 2 + +/* + * inbyte -- get a byte from the serial port + * d0 - contains the byte read in + */ + .align 2 +SYM (getDebugChar): /* symbol name used by m68k-stub */ +SYM (inbyte): + link a6, IMM(-8) + trap IMM(15) + .word inchr + moveb sp@, d0 + extw d0 + extl d0 + unlk a6 + rts + +/* + * outbyte -- sends a byte out the serial port + * d0 - contains the byte to be sent + */ + .align 2 +SYM (putDebugChar): /* symbol name used by m68k-stub */ +SYM (outbyte): + link fp, IMM(-4) + moveb fp@(11), sp@ + trap IMM(15) + .word outchr + unlk fp + rts + +/* + * outln -- sends a string of bytes out the serial port with a CR/LF + * a0 - contains the address of the string's first byte + * a1 - contains the address of the string's last byte + */ + .align 2 +SYM (outln): + link a6, IMM(-8) + moveml a0/a1, sp@ + trap IMM(15) + .word outln + unlk a6 + rts + +/* + * outstr -- sends a string of bytes out the serial port without a CR/LF + * a0 - contains the address of the string's first byte + * a1 - contains the address of the string's last byte + */ + .align 2 +SYM (outstr): + link a6, IMM(-8) + moveml a0/a1, sp@ + trap IMM(15) + .word outstr + unlk a6 + rts + +/* + * havebyte -- checks to see if there is a byte in the serial port, + * returns 1 if there is a byte, 0 otherwise. + */ +SYM (havebyte): + trap IMM(15) + .word instat + beqs empty + movel IMM(1), d0 + rts +empty: + movel IMM(0), d0 + rts + +/* + * These constants are for the MVME-135 board's boot monitor. They + * are used with a TRAP 15 call to access the monitor's I/O routines. + * they must be in the word following the trap call. + */ + .set inchr, 0x0 + .set instat, 0x1 + .set inln, 0x2 + .set readstr, 0x3 + .set readln, 0x4 + .set chkbrk, 0x5 + + .set outchr, 0x20 + .set outstr, 0x21 + .set outln, 0x22 + .set write, 0x23 + .set writeln, 0x24 + .set writdln, 0x25 + .set pcrlf, 0x26 + .set eraseln, 0x27 + .set writd, 0x28 + .set sndbrk, 0x29 + + .set tm_ini, 0x40 + .set dt_ini, 0x42 + .set tm_disp, 0x43 + .set tm_rd, 0x44 + + .set redir, 0x60 + .set redir_i, 0x61 + .set redir_o, 0x62 + .set return, 0x63 + .set bindec, 0x64 + + .set changev, 0x67 + .set strcmp, 0x68 + .set mulu32, 0x69 + .set divu32, 0x6A + .set chk_sum, 0x6B diff --git a/libgloss/m68k/mvme135-asm.S b/libgloss/m68k/mvme135-asm.S new file mode 100644 index 0000000..1722c18 --- /dev/null +++ b/libgloss/m68k/mvme135-asm.S @@ -0,0 +1,397 @@ +/* + * mvme135-asm.S -- assembler routines for the MVME stub. + * + * This code was pulled out of mvme135-stub.c by Ian Taylor so that I + * could handle different register and label prefixes in a sensible + * way. + */ + +/**************************************************************************** + + 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. + +****************************************************************************/ + +#include "asm.h" + + .title "mvme135-asm.S for m68k" + + .globl SYM (registers) + .globl SYM (lastFrame) + .globl SYM (superStack) + .globl SYM (exceptionHook) + .globl SYM (_returnFromException) + .globl SYM (stackPtr) + .globl SYM (handle_exception) + .globl SYM (exceptionSize) + .globl SYM (exceptionHandler) + +.text + + +/* + * Create a new exception vector table and populates it. Vectors from the + * boot monitor are spliced in so I/O and the abort button will continue + * to work. We also use the monitor's generalized vector for anything the + * debugger doesn't want. + */ + .global SYM (setup_vectors) +SYM (setup_vectors): + link fp, IMM (-8) + /* copy monitor vector table */ + + movecl vbr, a0 + lea SYM (vbr_table), a1 + movel 0x8(a0), d0 /* get generalized vector */ + movew IMM (0x3fc), d1 /* load vector count */ + +loop: /* fill table to gen. vector */ + movel d0, (a1,d1) + subqw IMM (4), d1 + bne loop + + movel 0x10(a0), 0x10(a1) /* breakpoint */ + movel 0x24(a0), 0x24(a1) /* trace */ + movel 0xbc(a0), 0xbc(a1) /* system call */ + + /* add stub vectors to table */ + movel SYM (_catchException), 0x8(a1) /* vector = 2, Access Fault */ + movel SYM (_catchException), 0xc(a1) /* vector = 3, Address Error */ + movel SYM (_catchException), 0x10(a1) /* vector = 4, Illegal instruction */ + movel SYM (_catchException), 0x14(a1) /* vector = 5, divide by 0 */ + movel SYM (_catchException), 0x18(a1) /* vector = 6, chk, chk2 instruction */ + movel SYM (_catchException), 0x1c(a1) /* vector = 7, ftrap, trap, trapv ins */ + movel SYM (_catchException), 0x20(a1) /* vector = 8, priviledge violation */ + movel SYM (_catchException), 0x24(a1) /* vector = 9, trace */ + movel SYM (_catchException), 0x28(a1) /* vector = 10, Aline opcode */ + movel SYM (_catchException), 0x2c(a1) /* vector = 11, fline opcode */ + movel SYM (_catchException), 0x30(a1) /* vector = 12, reserved */ + movel SYM (_catchException), 0x34(a1) /* vector = 13, coprocessor protocol violation */ + movel SYM (_catchException), 0x38(a1) /* vector = 14, format error */ + movel SYM (_catchException), 0x3c(a1) /* vector = 15, unitialized interupt */ + + /* unassigned, reserved */ + movel SYM (_catchException), 0x40(a1) /* vector = 16 */ + movel SYM (_catchException), 0x44(a1) /* vector = 17 */ + movel SYM (_catchException), 0x48(a1) /* vector = 18 */ + movel SYM (_catchException), 0x4c(a1) /* vector = 19 */ + movel SYM (_catchException), 0x50(a1) /* vector = 20 */ + movel SYM (_catchException), 0x54(a1) /* vector = 21 */ + movel SYM (_catchException), 0x58(a1) /* vector = 22 */ + movel SYM (_catchException), 0x5c(a1) /* vector = 23 */ + + movel SYM (_catchException), 0x84(a1) /* vector = 33, breakpoint, trap #1 */ + movel SYM (_catchException), 0xa0(a1) /* vector = 40 , trap #8*/ + + /* floating point traps */ + movel SYM (_catchException), 0xc0(a1) /* vector = 48 */ + movel SYM (_catchException), 0xc4(a1) /* vector = 49 */ + movel SYM (_catchException), 0xc8(a1) /* vector = 50 */ + movel SYM (_catchException), 0xcc(a1) /* vector = 51 */ + movel SYM (_catchException), 0xd0(a1) /* vector = 52 */ + movel SYM (_catchException), 0xd4(a1) /* vector = 53 */ + movel SYM (_catchException), 0xd8(a1) /* vector = 54 */ + movel SYM (_catchException), 0xdc(a1) /* vector = 55 */ + movel SYM (_catchException), 0xe0(a1) /* vector = 56 */ + movel SYM (_catchException), 0xe4(a1) /* vector = 57 */ + movel SYM (_catchException), 0xe8(a1) /* vector = 58 */ + +/*** movel &__debug_level7, 0x7c(a1) /* level7 interupt vector */ + + movecl a1, vbr /* change VBR to new table */ + unlk fp + rts +/* + * exceptionHandler -- sets up exception vector table. + * First arg is an integer vector number + * Second arg is the function pointer for the vector + */ +SYM (exceptionHandler): +# link a6, IMM (-8) +#str1: .ascii "Exception Handler Called\n" +# moveal IMM (str1), a0 +# moveal IMM (str1+25), a1 +# jsr SYM (outln) + +# unlk a6 + rts + +/* this never gets called */ + movel fp@(8), d0 /* get vector number */ + movel fp@(12), a0 /* get function address */ + moveal &SYM (vbr_table), a1 /* FIXME */ + + addl d0, d0 + addl d0, d0 + + addal d0, a1 + movel a0, (a1) + + movecl a1, vbr + unlk a6 + rts + +.globl SYM (return_to_super) +SYM (return_to_super): + movel SYM (registers)+60,sp /* get new stack pointer */ + movel SYM (lastFrame),a0 /* get last frame info */ + bra return_to_any + +.globl SYM (return_to_user) +SYM (return_to_user): + movel SYM (registers)+60,a0 /* get usp */ + movel a0,usp /* set usp */ + movel SYM (superStack),sp /* get original stack pointer */ + +return_to_any: + movel SYM (lastFrame),a0 /* get last frame info */ + movel a0@+,SYM (lastFrame) /* link in previous frame */ + addql IMM (8),a0 /* skip over pc, vector#*/ + movew a0@+,d0 /* get # of words in cpu frame */ + addw d0,a0 /* point to end of data */ + addw d0,a0 /* point to end of data */ + movel a0,a1 +/* copy the stack frame */ + subql IMM (1),d0 +copyUserLoop: + movew a1@-,sp@- + dbf d0,copyUserLoop + +#ifdef __HAVE_68881__ + fmoveml SYM (registers)+168,fpcr/fpsr/fpi + fmovemx SYM (registers)+72,fp0-fp7 + cmpl IMM (-1),a0@ /* skip frestore flag set ? */ + beq skip_frestore + frestore a0@+ +skip_frestore: +#endif + + moveml SYM (registers),d0-d7/a0-a6 + rte /* pop and go! */ + + +/* this function is called immediately when a level 7 interrupt occurs */ +/* if the previous interrupt level was 7 then we're already servicing */ +/* this interrupt and an rte is in order to return to the debugger. */ +/* For the 68000, the offset for sr is 6 due to the jsr return address */ +.text +.globl SYM (_debug_level7) +SYM (_debug_level7): + movew d0,sp@- +#ifdef mc68020 + movew sp@(2),d0 +#else + movew sp@(6),d0 +#endif + andiw IMM (0x700),d0 + cmpiw IMM (0x700),d0 + beq _already7 + movew sp@+,d0 + bra SYM (_catchException) +_already7: + movew sp@+,d0 +#ifndef mc68020 + lea sp@(4),sp /* pull off 68000 return address */ +#endif + rte + +#ifdef mc68020 +/* This function is called when a 68020 exception occurs. It saves + * all the cpu and fpcp regs in the _registers array, creates a frame on a + * linked list of frames which has the cpu and fpcp stack frames needed + * to properly restore the context of these processors, and invokes + * an exception handler (remcom_handler). + * + * stack on entry: stack on exit: + * N bytes of junk exception # MSWord + * Exception Format Word exception # MSWord + * Program counter LSWord + * Program counter MSWord + * Status Register + * + * + */ + +.text +.globl SYM (_catchException) +SYM (_catchException): + + oriw IMM (0x0700),sr /* Disable interrupts */ + + moveml d0-d7/a0-a6,SYM (registers) /* save registers */ + movel SYM (lastFrame),a0 /* last frame pointer */ + +#ifdef __HAVE_68881__ + /* do an fsave, then remember the address to begin a restore from */ + fsave a0@- + fmovemx fp0-fp7, SYM (registers)+72 + fmoveml fpcr/fpsr/fpi, SYM (registers)+168 +#endif + + lea SYM (registers),a5 /* get address of registers */ + movew sp@,d1 /* get status register */ + movew d1,a5@(66) /* save sr */ + movel sp@(2),a4 /* save pc in a4 for later use */ + movel a4,a5@(68) /* save pc in _regisers[] */ + +/* figure out how many bytes in the stack frame */ + movew sp@(6),d0 /* get '020 exception format */ + movew d0,d2 /* make a copy of format word */ + andiw IMM (0xf000),d0 /* mask off format type */ + rolw IMM (5),d0 /* rotate into the low byte *2 */ + lea SYM (exceptionSize),a1 + addw d0,a1 /* index into the table */ + movew a1@,d0 /* get number of words in frame */ + movew d0,d3 /* save it */ + subw d0,a0 /* adjust save pointer */ + subw d0,a0 /* adjust save pointer(bytes) */ + movel a0,a1 /* copy save pointer */ + subql IMM (1),d0 /* predecrement loop counter */ + +/* copy the frame */ + +saveFrameLoop: + movew sp@+,a1@+ + dbf d0,saveFrameLoop + +/* now that the stack has been clenaed, + * save the a7 in use at time of exception + */ + movel sp,SYM (superStack) /* save supervisor sp */ + andiw IMM (0x2000),d1 /* were we in supervisor mode ? */ + beq userMode + movel a7,a5@(60) /* save a7 */ + bra a7saveDone +userMode: + movel usp,a1 + movel a1,a5@(60) /* save user stack pointer */ +a7saveDone: + + +/* save size of frame */ + movew d3,a0@- + +/* compute exception number */ + andl IMM (0xfff),d2 /* mask off vector offset */ + lsrw IMM (2),d2 /* divide by 4 to get vect num */ + movel d2,a0@- /* save it */ + +/* save pc causing exception */ + movel a4,a0@- + +/* save old frame link and set the new value*/ + movel SYM (lastFrame),a1 /* last frame pointer */ + movel a1,a0@- /* save pointer to prev frame */ + movel a0,SYM (lastFrame) + + movel d2,sp@- /* push exception num */ +#ifdef TMP_HACK + movel SYM (exceptionHook),a0 /* get address of handler */ + jbsr a0@ /* and call it */ +#else + jbsr SYM (remcomHandler) +#endif + clrl sp@ /* replace exception num parm with frame ptr */ + jbsr SYM (_returnFromException) /* jbsr, but never returns */ + +#else /* mc68000 */ + +/* This function is called when an exception occurs. It translates the + * return address found on the stack into an exception vector # which + * is then handled by either handle_exception or a system handler. + * _catchException provides a front end for both. + * + * stack on entry: stack on exit: + * Program counter MSWord exception # MSWord + * Program counter LSWord exception # MSWord + * Status Register + * Return Address MSWord + * Return Address LSWord + */ +.text +.globl SYM (_catchException) +SYM (_catchException): + + oriw IMM (0x0700),sr /* Disable interrupts */ + + moveml d0-d7/a0-a6,SYM (registers) /* save registers */ + movel SYM (lastFrame),a0 /* last frame pointer */ + +#ifdef __HAVE_68881__ + /* do an fsave, then remember the address to begin a restore from */ + fsave a0@- + fmovemx fp0-fp7, SYM (registers)+72 + fmoveml fpcr/fpsr/fpi, SYM (registers)+168 +#endif + + lea SYM (registers),a5 /* get address of registers */ + movel sp@+,d2 /* pop return address */ + addl IMM (1530),d2 /* convert return addr to */ + divs IMM (6),d2 /* exception number */ + extl d2 + + moveql IMM (3),d3 /* assume a three word frame */ + + cmpiw IMM (3),d2 /* bus error or address error ? */ + bgt normal /* if >3 then normal error */ + movel sp@+,a0@- /* copy error info to frame buff*/ + movel sp@+,a0@- /* these are never used */ + moveql IMM (7),d3 /* this is a 7 word frame */ + +normal: + movew sp@+,d1 /* pop status register */ + movel sp@+,a4 /* pop program counter */ + movew d1,a5@(66) /* save sr */ + movel a4,a5@(68) /* save pc in _regisers[] */ + movel a4,a0@- /* copy pc to frame buffer */ + movew d1,a0@- /* copy sr to frame buffer */ + + movel sp,SYM (superStack) /* save supervisor sp */ + + andiw IMM (0x2000),d1 /* were we in supervisor mode ? */ + beq userMode + movel a7,a5@(60) /* save a7 */ + bra saveDone +userMode: + movel usp,a1 /* save user stack pointer */ + movel a1,a5@(60) /* save user stack pointer */ +saveDone: + + movew d3,a0@- /* push frame size in words */ + movel d2,a0@- /* push vector number */ + movel a4,a0@- /* push exception pc */ + +/* save old frame link and set the new value */ + movel SYM (lastFrame),a1 /* last frame pointer */ + movel a1,a0@- /* save pointer to prev frame */ + movel a0,SYM (lastFrame) + + movel d2,sp@- /* push exception num */ + movel SYM (exceptionHook),a0 /* get address of handler */ + jbsr a0@ /* and call it */ + clrl sp@ /* replace exception num parm with frame ptr */ + jbsr SYM (_returnFromException) /* jbsr, but never returns */ + +#endif /* m68000 */ + +/* + * remcomHandler is a front end for handle_exception. It moves the + * stack pointer into an area reserved for debugger use in case the + * breakpoint happened in supervisor mode. + */ +.globl SYM (remcomHandler) +SYM (remcomHandler): + addl IMM (4),sp /* pop off return address */ + movel sp@+,d0 /* get the exception number */ + movel SYM (stackPtr),sp /* move to remcom stack area */ + movel d0,sp@- /* push exception onto stack */ + jbsr SYM (handle_exception) /* this never returns */ + rts /* return */ diff --git a/libgloss/m68k/mvme135.ld b/libgloss/m68k/mvme135.ld new file mode 100644 index 0000000..dba0dbe --- /dev/null +++ b/libgloss/m68k/mvme135.ld @@ -0,0 +1,128 @@ +STARTUP(crt0.o) +OUTPUT_ARCH(m68k) +/* Uncomment this if you want srecords. This is needed for a.out + * if you plan to use GDB. +OUTPUT_FORMAT(srec) + */ +SEARCH_DIR(.) +GROUP(-lmvme135 -lc -lgcc) +__DYNAMIC = 0; + +/* + * Setup the memory map of the Motorola MVME135 Board + * stack grows down from high memory. + * + * The memory map look like this: + * +--------------------+ <- low memory + * | .text | + * | _etext | + * | ctor list | the ctor and dtor lists are for + * | dtor list | C++ support + * +--------------------+ + * | .data | initialized data goes here + * | _edata | + * +--------------------+ + * | .bss | + * | __bss_start | start of bss, cleared by crt0 + * | _end | start of heap, used by sbrk() + * +--------------------+ + * . . + * . . + * . . + * | __stack | top of stack + * +--------------------+ + */ + +MEMORY +{ + ram (rwx) : ORIGIN = 0x5000, LENGTH = 1M +} + +/* + * Allocate the stack to be at the top of memory, since the stack + * grows down + */ + +PROVIDE (__stack = 1M - 8); + +/* + * 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 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); +/* + * stick everything in ram (of course) + */ +SECTIONS +{ + .text : + { + *(.text) + . = ALIGN(0x4); + __CTOR_LIST__ = .; + ___CTOR_LIST__ = .; + LONG((__CTOR_END__ - __CTOR_LIST__) / 4 - 2) + *(.ctors) + LONG(0) + __CTOR_END__ = .; + __DTOR_LIST__ = .; + ___DTOR_LIST__ = .; + LONG((__DTOR_END__ - __DTOR_LIST__) / 4 - 2) + *(.dtors) + LONG(0) + __DTOR_END__ = .; + *(.rodata) + *(.gcc_except_table) + + . = ALIGN(0x2); + __INIT_SECTION__ = . ; + LONG (0x4e560000) /* linkw %fp,#0 */ + *(.init) + SHORT (0x4e5e) /* unlk %fp */ + SHORT (0x4e75) /* rts */ + + __FINI_SECTION__ = . ; + LONG (0x4e560000) /* linkw %fp,#0 */ + *(.fini) + SHORT (0x4e5e) /* unlk %fp */ + SHORT (0x4e75) /* rts */ + + _etext = .; + *(.lit) + } > ram + + .data : + { + *(.shdata) + *(.data) + _edata = .; + } > ram + + .bss : + { + . = ALIGN(0x4); + __bss_start = . ; + *(.shbss) + *(.bss) + *(COMMON) + _end = ALIGN (0x8); + __end = _end; + } > ram + + .stab 0 (NOLOAD) : + { + *(.stab) + } + + .stabstr 0 (NOLOAD) : + { + *(.stabstr) + } +} diff --git a/libgloss/m68k/mvme162.ld b/libgloss/m68k/mvme162.ld new file mode 100644 index 0000000..fd3ae10 --- /dev/null +++ b/libgloss/m68k/mvme162.ld @@ -0,0 +1,129 @@ +STARTUP(crt0.o) +OUTPUT_ARCH(m68k) +/* Uncomment this if you want srecords. This is needed for a.out + * if you plan to use GDB. +OUTPUT_FORMAT(srec) + */ +SEARCH_DIR(.) +GROUP(-lmvme162 -lc -lgcc) +__DYNAMIC = 0; + +/* + * Setup the memory map of the Motorola MVME135 Board + * stack grows down from high memory. + * + * The memory map look like this: + * +--------------------+ <- low memory + * | .text | + * | _etext | + * | ctor list | the ctor and dtor lists are for + * | dtor list | C++ support + * +--------------------+ + * | .data | initialized data goes here + * | _edata | + * +--------------------+ + * | .bss | + * | __bss_start | start of bss, cleared by crt0 + * | _end | start of heap, used by sbrk() + * +--------------------+ + * . . + * . . + * . . + * | __stack | top of stack + * +--------------------+ + */ + +MEMORY +{ + monitor : ORIGIN = 0x0000, LENGTH = 64K + ram (rwx) : ORIGIN = 0x10000, LENGTH = 16M +} + +/* + * allocate the stack to be at the top of memory, since the stack + * grows down + */ + +PROVIDE (__stack = 16M - 8); + +/* + * 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); +/* + * stick everything in ram (of course) + */ +SECTIONS +{ + .text : + { + *(.text) + . = ALIGN(0x4); + __CTOR_LIST__ = .; + ___CTOR_LIST__ = .; + LONG((__CTOR_END__ - __CTOR_LIST__) / 4 - 2) + *(.ctors) + LONG(0) + __CTOR_END__ = .; + __DTOR_LIST__ = .; + ___DTOR_LIST__ = .; + LONG((__DTOR_END__ - __DTOR_LIST__) / 4 - 2) + *(.dtors) + LONG(0) + __DTOR_END__ = .; + *(.rodata) + *(.gcc_except_table) + + . = ALIGN(0x2); + __INIT_SECTION__ = . ; + LONG (0x4e560000) /* linkw %fp,#0 */ + *(.init) + SHORT (0x4e5e) /* unlk %fp */ + SHORT (0x4e75) /* rts */ + + __FINI_SECTION__ = . ; + LONG (0x4e560000) /* linkw %fp,#0 */ + *(.fini) + SHORT (0x4e5e) /* unlk %fp */ + SHORT (0x4e75) /* rts */ + + _etext = .; + *(.lit) + } > ram + + .data : + { + *(.shdata) + *(.data) + _edata = .; + } > ram + + .bss : + { + . = ALIGN(0x4); + __bss_start = . ; + *(.shbss) + *(.bss) + *(COMMON) + _end = ALIGN (0x8); + __end = _end; + } > ram + + .stab 0 (NOLOAD) : + { + *(.stab) + } + + .stabstr 0 (NOLOAD) : + { + *(.stabstr) + } +} diff --git a/libgloss/m68k/mvme162lx-asm.S b/libgloss/m68k/mvme162lx-asm.S new file mode 100644 index 0000000..8b83621 --- /dev/null +++ b/libgloss/m68k/mvme162lx-asm.S @@ -0,0 +1,292 @@ +/* + * mvme162lx-asm.S -- assembler routines for the MVME stub. + * + * This code was pulled out of mvme162lx-stub.c by Ian Taylor so that I + * could handle different register and label prefixes in a sensible + * way. + */ + +/**************************************************************************** + + 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. + +****************************************************************************/ + +#include "asm.h" + + .title "mvme162lx-asm.S for m68k" + + .globl SYM (registers) + .globl SYM (lastFrame) + .globl SYM (superStack) + .globl SYM (exceptionHook) + .globl SYM (_returnFromException) + .globl SYM (stackPtr) + .globl SYM (handle_exception) + .globl SYM (exceptionSize) + +.text +.globl SYM (return_to_super) +SYM (return_to_super): + movel SYM (registers)+60,sp /* get new stack pointer */ + movel SYM (lastFrame),a0 /* get last frame info */ + bra return_to_any + +.globl SYM (return_to_user) +SYM (return_to_user): + movel SYM (registers)+60,a0 /* get usp */ + movel a0,usp /* set usp */ + movel SYM (superStack),sp /* get original stack pointer */ + +return_to_any: + movel SYM (lastFrame),a0 /* get last frame info */ + movel a0@+,SYM (lastFrame) /* link in previous frame */ + addql IMM (8),a0 /* skip over pc, vector#*/ + movew a0@+,d0 /* get # of words in cpu frame */ + addw d0,a0 /* point to end of data */ + addw d0,a0 /* point to end of data */ + movel a0,a1 +/* copy the stack frame */ + subql IMM (1),d0 +copyUserLoop: + movew a1@-,sp@- + dbf d0,copyUserLoop + +#ifdef __HAVE_68881__ + fmoveml SYM (registers)+168,fpcr/fpsr/fpi + fmovemx SYM (registers)+72,fp0-fp7 + cmpl IMM (-1),a0@ /* skip frestore flag set ? */ + beq skip_frestore + frestore a0@+ +skip_frestore: +#endif + + moveml SYM (registers),d0-d7/a0-a6 + rte /* pop and go! */ + + +/* this function is called immediately when a level 7 interrupt occurs */ +/* if the previous interrupt level was 7 then we're already servicing */ +/* this interrupt and an rte is in order to return to the debugger. */ +/* For the 68000, the offset for sr is 6 due to the jsr return address */ +.text +.globl SYM (_debug_level7) +SYM (_debug_level7): + movew d0,sp@- +#ifdef mc68020 + movew sp@(2),d0 +#else + movew sp@(6),d0 +#endif + andiw IMM (0x700),d0 + cmpiw IMM (0x700),d0 + beq _already7 + movew sp@+,d0 + bra SYM (_catchException) +_already7: + movew sp@+,d0 +#ifndef mc68020 + lea sp@(4),sp /* pull off 68000 return address */ +#endif + rte + +#ifdef mc68020 +/* This function is called when a 68020 exception occurs. It saves + * all the cpu and fpcp regs in the _registers array, creates a frame on a + * linked list of frames which has the cpu and fpcp stack frames needed + * to properly restore the context of these processors, and invokes + * an exception handler (remcom_handler). + * + * stack on entry: stack on exit: + * N bytes of junk exception # MSWord + * Exception Format Word exception # MSWord + * Program counter LSWord + * Program counter MSWord + * Status Register + * + * + */ + +.text +.globl SYM (_catchException) +SYM (_catchException): + + oriw IMM (0x0700),sr /* Disable interrupts */ + + moveml d0-d7/a0-a6,SYM (registers) /* save registers */ + movel SYM (lastFrame),a0 /* last frame pointer */ + +#ifdef __HAVE_68881__ + /* do an fsave, then remember the address to begin a restore from */ + fsave a0@- + fmovemx fp0-fp7, SYM (registers)+72 + fmoveml fpcr/fpsr/fpi, SYM (registers)+168 +#endif + + lea SYM (registers),a5 /* get address of registers */ + movew sp@,d1 /* get status register */ + movew d1,a5@(66) /* save sr */ + movel sp@(2),a4 /* save pc in a4 for later use */ + movel a4,a5@(68) /* save pc in _regisers[] */ + +/* figure out how many bytes in the stack frame */ + movew sp@(6),d0 /* get '020 exception format */ + movew d0,d2 /* make a copy of format word */ + andiw IMM (0xf000),d0 /* mask off format type */ + rolw IMM (5),d0 /* rotate into the low byte *2 */ + lea SYM (exceptionSize),a1 + addw d0,a1 /* index into the table */ + movew a1@,d0 /* get number of words in frame */ + movew d0,d3 /* save it */ + subw d0,a0 /* adjust save pointer */ + subw d0,a0 /* adjust save pointer(bytes) */ + movel a0,a1 /* copy save pointer */ + subql IMM (1),d0 /* predecrement loop counter */ + +/* copy the frame */ + +saveFrameLoop: + movew sp@+,a1@+ + dbf d0,saveFrameLoop + +/* now that the stack has been clenaed, + * save the a7 in use at time of exception + */ + movel sp,SYM (superStack) /* save supervisor sp */ + andiw IMM (0x2000),d1 /* were we in supervisor mode ? */ + beq userMode + movel a7,a5@(60) /* save a7 */ + bra a7saveDone +userMode: + movel usp,a1 + movel a1,a5@(60) /* save user stack pointer */ +a7saveDone: + + +/* save size of frame */ + movew d3,a0@- + +/* compute exception number */ + andl IMM (0xfff),d2 /* mask off vector offset */ + lsrw IMM (2),d2 /* divide by 4 to get vect num */ + movel d2,a0@- /* save it */ + +/* save pc causing exception */ + movel a4,a0@- + +/* save old frame link and set the new value*/ + movel SYM (lastFrame),a1 /* last frame pointer */ + movel a1,a0@- /* save pointer to prev frame */ + movel a0,SYM (lastFrame) + + movel d2,sp@- /* push exception num */ +#ifdef TMP_HACK + movel SYM (exceptionHook),a0 /* get address of handler */ + jbsr a0@ /* and call it */ +#else + jbsr SYM (remcomHandler) +#endif + clrl sp@ /* replace exception num parm with frame ptr */ + jbsr SYM (_returnFromException) /* jbsr, but never returns */ + +#else /* mc68000 */ + +/* This function is called when an exception occurs. It translates the + * return address found on the stack into an exception vector # which + * is then handled by either handle_exception or a system handler. + * _catchException provides a front end for both. + * + * stack on entry: stack on exit: + * Program counter MSWord exception # MSWord + * Program counter LSWord exception # MSWord + * Status Register + * Return Address MSWord + * Return Address LSWord + */ +.text +.globl SYM (_catchException) +SYM (_catchException): + + oriw IMM (0x0700),sr /* Disable interrupts */ + + moveml d0-d7/a0-a6,SYM (registers) /* save registers */ + movel SYM (lastFrame),a0 /* last frame pointer */ + +#ifdef __HAVE_68881__ + /* do an fsave, then remember the address to begin a restore from */ + fsave a0@- + fmovemx fp0-fp7, SYM (registers)+72 + fmoveml fpcr/fpsr/fpi, SYM (registers)+168 +#endif + + lea SYM (registers),a5 /* get address of registers */ + movel sp@+,d2 /* pop return address */ + addl IMM (1530),d2 /* convert return addr to */ + divs IMM (6),d2 /* exception number */ + extl d2 + + moveql IMM (3),d3 /* assume a three word frame */ + + cmpiw IMM (3),d2 /* bus error or address error ? */ + bgt normal /* if >3 then normal error */ + movel sp@+,a0@- /* copy error info to frame buff*/ + movel sp@+,a0@- /* these are never used */ + moveql IMM (7),d3 /* this is a 7 word frame */ + +normal: + movew sp@+,d1 /* pop status register */ + movel sp@+,a4 /* pop program counter */ + movew d1,a5@(66) /* save sr */ + movel a4,a5@(68) /* save pc in _regisers[] */ + movel a4,a0@- /* copy pc to frame buffer */ + movew d1,a0@- /* copy sr to frame buffer */ + + movel sp,SYM (superStack) /* save supervisor sp */ + + andiw IMM (0x2000),d1 /* were we in supervisor mode ? */ + beq userMode + movel a7,a5@(60) /* save a7 */ + bra saveDone +userMode: + movel usp,a1 /* save user stack pointer */ + movel a1,a5@(60) /* save user stack pointer */ +saveDone: + + movew d3,a0@- /* push frame size in words */ + movel d2,a0@- /* push vector number */ + movel a4,a0@- /* push exception pc */ + +/* save old frame link and set the new value */ + movel SYM (lastFrame),a1 /* last frame pointer */ + movel a1,a0@- /* save pointer to prev frame */ + movel a0,SYM (lastFrame) + + movel d2,sp@- /* push exception num */ + movel SYM (exceptionHook),a0 /* get address of handler */ + jbsr a0@ /* and call it */ + clrl sp@ /* replace exception num parm with frame ptr */ + jbsr SYM (_returnFromException) /* jbsr, but never returns */ + +#endif /* m68000 */ + +/* + * remcomHandler is a front end for handle_exception. It moves the + * stack pointer into an area reserved for debugger use in case the + * breakpoint happened in supervisor mode. + */ +.globl SYM (remcomHandler) +SYM (remcomHandler): + addl IMM (4),sp /* pop off return address */ + movel sp@+,d0 /* get the exception number */ + movel SYM (stackPtr),sp /* move to remcom stack area */ + movel d0,sp@- /* push exception onto stack */ + jbsr SYM (handle_exception) /* this never returns */ + rts /* return */ diff --git a/libgloss/m68k/sbc5204.ld b/libgloss/m68k/sbc5204.ld new file mode 100644 index 0000000..4570b0e --- /dev/null +++ b/libgloss/m68k/sbc5204.ld @@ -0,0 +1,127 @@ +/* STARTUP(crt0.o) */ +OUTPUT_ARCH(m68k) +/* Uncomment this if you want srecords. This is needed for a.out + * if you plan to use GDB. +OUTPUT_FORMAT(srec) + */ +SEARCH_DIR(.) +GROUP(-ldbug -lc -lgcc) +__DYNAMIC = 0; + +/* + * Setup the memory map of the Arnewsh SBC5204 + * stack grows down from high memory. + * + * The memory map look like this: + * +--------------------+ <- low memory + * | .text | + * | _etext | + * | ctor list | the ctor and dtor lists are for + * | dtor list | C++ support + * +--------------------+ + * | .data | initialized data goes here + * | _edata | + * +--------------------+ + * | .bss | + * | __bss_start | start of bss, cleared by crt0 + * | _end | start of heap, used by sbrk() + * +--------------------+ + * . . + * . . + * . . + * | __stack | top of stack + * +--------------------+ + */ +MEMORY +{ + ram (rwx) : ORIGIN = 0x10000, LENGTH = 0x30000 +} + +/* + * allocate the stack to be at the top of memory, since the stack + * grows down + */ + +PROVIDE (__stack = 0x30000); + +/* + * 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); +/* + * stick everything in ram (of course) + */ +SECTIONS +{ + .text : + { + *(.text) + . = ALIGN(0x4); + __CTOR_LIST__ = .; + ___CTOR_LIST__ = .; + LONG((__CTOR_END__ - __CTOR_LIST__) / 4 - 2) + *(.ctors) + LONG(0) + __CTOR_END__ = .; + __DTOR_LIST__ = .; + ___DTOR_LIST__ = .; + LONG((__DTOR_END__ - __DTOR_LIST__) / 4 - 2) + *(.dtors) + LONG(0) + __DTOR_END__ = .; + *(.rodata) + *(.gcc_except_table) + + . = ALIGN(0x2); + __INIT_SECTION__ = . ; + LONG (0x4e560000) /* linkw %fp,#0 */ + *(.init) + SHORT (0x4e5e) /* unlk %fp */ + SHORT (0x4e75) /* rts */ + + __FINI_SECTION__ = . ; + LONG (0x4e560000) /* linkw %fp,#0 */ + *(.fini) + SHORT (0x4e5e) /* unlk %fp */ + SHORT (0x4e75) /* rts */ + + _etext = .; + *(.lit) + } > ram + + .data : + { + *(.shdata) + *(.data) + _edata = .; + } > ram + + .bss : + { + . = ALIGN(0x4); + __bss_start = . ; + *(.shbss) + *(.bss) + *(COMMON) + _end = ALIGN (0x8); + __end = _end; + } > ram + + .stab 0 (NOLOAD) : + { + *(.stab) + } + + .stabstr 0 (NOLOAD) : + { + *(.stabstr) + } +} diff --git a/libgloss/m68k/sbc5206.ld b/libgloss/m68k/sbc5206.ld new file mode 100644 index 0000000..d082a08 --- /dev/null +++ b/libgloss/m68k/sbc5206.ld @@ -0,0 +1,127 @@ +/* STARTUP(crt0.o) */ +OUTPUT_ARCH(m68k) +/* Uncomment this if you want srecords. This is needed for a.out + * if you plan to use GDB. +OUTPUT_FORMAT(srec) + */ +SEARCH_DIR(.) +GROUP(-ldbug -lc -lgcc) +__DYNAMIC = 0; + +/* + * Setup the memory map of the Arnewsh SBC5206 + * stack grows down from high memory. + * + * The memory map look like this: + * +--------------------+ <- low memory + * | .text | + * | _etext | + * | ctor list | the ctor and dtor lists are for + * | dtor list | C++ support + * +--------------------+ + * | .data | initialized data goes here + * | _edata | + * +--------------------+ + * | .bss | + * | __bss_start | start of bss, cleared by crt0 + * | _end | start of heap, used by sbrk() + * +--------------------+ + * . . + * . . + * . . + * | __stack | top of stack + * +--------------------+ + */ +MEMORY +{ + ram (rwx) : ORIGIN = 0x10000, LENGTH = 0xd000 +} + +/* + * allocate the stack to be at the top of memory, since the stack + * grows down + */ + +PROVIDE (__stack = 0xd000); + +/* + * 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); +/* + * stick everything in ram (of course) + */ +SECTIONS +{ + .text : + { + *(.text) + . = ALIGN(0x4); + __CTOR_LIST__ = .; + ___CTOR_LIST__ = .; + LONG((__CTOR_END__ - __CTOR_LIST__) / 4 - 2) + *(.ctors) + LONG(0) + __CTOR_END__ = .; + __DTOR_LIST__ = .; + ___DTOR_LIST__ = .; + LONG((__DTOR_END__ - __DTOR_LIST__) / 4 - 2) + *(.dtors) + LONG(0) + __DTOR_END__ = .; + *(.rodata) + *(.gcc_except_table) + + . = ALIGN(0x2); + __INIT_SECTION__ = . ; + LONG (0x4e560000) /* linkw %fp,#0 */ + *(.init) + SHORT (0x4e5e) /* unlk %fp */ + SHORT (0x4e75) /* rts */ + + __FINI_SECTION__ = . ; + LONG (0x4e560000) /* linkw %fp,#0 */ + *(.fini) + SHORT (0x4e5e) /* unlk %fp */ + SHORT (0x4e75) /* rts */ + + _etext = .; + *(.lit) + } > ram + + .data : + { + *(.shdata) + *(.data) + _edata = .; + } > ram + + .bss : + { + . = ALIGN(0x4); + __bss_start = . ; + *(.shbss) + *(.bss) + *(COMMON) + _end = ALIGN (0x8); + __end = _end; + } > ram + + .stab 0 (NOLOAD) : + { + *(.stab) + } + + .stabstr 0 (NOLOAD) : + { + *(.stabstr) + } +} diff --git a/libgloss/m68k/test.c b/libgloss/m68k/test.c new file mode 100644 index 0000000..d84045d --- /dev/null +++ b/libgloss/m68k/test.c @@ -0,0 +1,26 @@ +extern int led_putnum(); +extern char print(),putnum(); + +#include <stdio.h> + +main() +{ + char buf[20]; + + outbyte ('&'); + outbyte ('@'); + outbyte ('$'); + outbyte ('%'); + print ("FooBar\r\n"); + +#if 0 + write (2, "Enter 5 characters... ", 24); + read (0, buf, 5); + print (buf); + print ("\r\n"); +#endif + + /* whew, we made it */ + print ("\r\nDone...\r\n"); + fflush(stdout); +} |