diff options
Diffstat (limited to 'libgloss/m68k')
39 files changed, 0 insertions, 5470 deletions
diff --git a/libgloss/m68k/Makefile.in b/libgloss/m68k/Makefile.in deleted file mode 100644 index 5705b1137..000000000 --- a/libgloss/m68k/Makefile.in +++ /dev/null @@ -1,303 +0,0 @@ -# Copyright (c) 1995, 1996, 2001 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 - - -# Here is all of the simulator stuff -SIM_SCRIPTS = sim.ld -SIM_LDFLAGS = -Tsim.ld -SIM_BSP = libsim.a -SIM_CRT0 = sim-crt0.o -SIM_OBJS = sim-print.o sim-inbyte.o sim-sbrk.o sim-abort.o sim-errno.o simulator.o sim-funcs.o unlink.o -SIM_TEST = -SIM_INSTALL = install-sim - - -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${srcdir} -Tidp.ld -IDP_BSP= libidp.a -IDP_OBJS= leds.o idp-inbyte.o idp-outbyte.o mc68ec.o - -# -# here's all the IDP GDB target stuff -# -IDPGDB_LDFLAGS= -L${srcdir} -Tidpgdb.ld -IDPGDB_BSP= libidpgdb.a -IDPGDB_OBJS= leds.o idp-inbyte.o idp-gdb-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: ${SIM_CRT0} ${SIM_BSP} ${CRT0} ${BCC_BSP} ${IDP_BSP} ${IDPGDB_BSP} ${MVME135_BSP} ${MVME162_BSP} ${DBUG_BSP} - -# -# here's where we build the board support packages for each target -# -${SIM_BSP}: ${SIM_OBJS} - ${AR} ${ARFLAGS} $@ ${SIM_OBJS} - ${RANLIB} $@ - -${BCC_BSP}: $(OBJS) ${BCC_OBJS} - ${AR} ${ARFLAGS} $@ $(OBJS) ${BCC_OBJS} - ${RANLIB} $@ - -${IDP_BSP}: $(OBJS) ${IDP_OBJS} - ${AR} ${ARFLAGS} $@ $(OBJS) ${IDP_OBJS} - ${RANLIB} $@ - -${IDPGDB_BSP}: $(OBJS) ${IDPGDB_OBJS} - ${AR} ${ARFLAGS} $@ $(OBJS) ${IDPGDB_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 $< - -idp-gdb-outbyte.o: ${srcdir}/idp-outbyte.c - $(CC) $(CFLAGS_FOR_TARGET) -DGDB_MONITOR_OUTPUT $(INCLUDES) -c $< -o $@ - -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 - -idpgdb-test.x: test.o ${CRT0} Makefile ${IDPGDB_BSP} - ${CC} $(CFLAGS_FOR_TARGET) -L${srcdir} -L${objdir} \ - test.o -o $@ $(LDFLAGS_FOR_TARGET) -N -Wl,-Tidpgdb.ld -idpgdb-test.srec: idpgdb-test.x - $(OBJCOPY) -O srec idpgdb-test.x $@ -idpgdb-test.dis: idpgdb-test.x - @rm -fr idpgdb-test.dis - $(OBJDUMP) -d idpgdb-test.x > $@ -idpgdb-test: idpgdb-test.srec idpgdb-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 - -unlink.o: $(srcdir)/../unlink.c - -.PHONY: install info dvi doc install-info clean-info -install: - # install SIM stuff - $(INSTALL_PROGRAM) $(SIM_CRT0) $(tooldir)/lib${MULTISUBDIR}/$(SIM_CRT0) - $(INSTALL_PROGRAM) $(SIM_BSP) $(tooldir)/lib${MULTISUBDIR}/$(SIM_BSP) - $(INSTALL_DATA) ${srcdir}/sim.ld $(tooldir)/lib${MULTISUBDIR}/sim.ld - # - $(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 IDPGDB stuff - $(INSTALL_PROGRAM) $(IDPGDB_BSP) $(tooldir)/lib${MULTISUBDIR}/$(IDPGDB_BSP) - $(INSTALL_DATA) ${srcdir}/idpgdb.ld $(tooldir)/lib${MULTISUBDIR}/idpgdb.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 deleted file mode 100644 index 28b7c1296..000000000 --- a/libgloss/m68k/README +++ /dev/null @@ -1,8 +0,0 @@ -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 deleted file mode 100644 index 035024a3f..000000000 --- a/libgloss/m68k/asm.h +++ /dev/null @@ -1,85 +0,0 @@ -/* 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 deleted file mode 100644 index 65f6441ef..000000000 --- a/libgloss/m68k/bcc.ld +++ /dev/null @@ -1,127 +0,0 @@ -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 deleted file mode 100755 index 1fbf8c890..000000000 --- a/libgloss/m68k/configure +++ /dev/null @@ -1,1223 +0,0 @@ -#! /bin/sh - -# Guess values for system-dependent variables and create Makefiles. -# Generated automatically using autoconf version 2.13 -# Copyright (C) 1992, 93, 94, 95, 96 Free Software Foundation, Inc. -# -# This configure script is free software; the Free Software Foundation -# 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= -sitefile= -srcdir= -target=NONE -verbose= -x_includes=NONE -x_libraries=NONE -bindir='${exec_prefix}/bin' -sbindir='${exec_prefix}/sbin' -libexecdir='${exec_prefix}/libexec' -datadir='${prefix}/share' -sysconfdir='${prefix}/etc' -sharedstatedir='${prefix}/com' -localstatedir='${prefix}/var' -libdir='${exec_prefix}/lib' -includedir='${prefix}/include' -oldincludedir='/usr/include' -infodir='${prefix}/info' -mandir='${prefix}/man' - -# Initialize some other variables. -subdirs= -MFLAGS= MAKEFLAGS= -SHELL=${CONFIG_SHELL-/bin/sh} -# Maximum number of lines to put in a shell here document. -ac_max_here_lines=12 - -ac_prev= -for ac_option -do - - # If the previous option needs an argument, assign it. - if test -n "$ac_prev"; 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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 - -# FIXME: We temporarily define our own version of AC_PROG_CC. This is -# copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS. We -# are probably using a cross compiler, which will not be able to fully -# link an executable. This should really be fixed in autoconf -# itself. - -AC_DEFUN(LIB_AC_PROG_CC, -[AC_BEFORE([$0], [AC_PROG_CPP])dnl -AC_CHECK_PROG(CC, gcc, gcc) -if test -z "$CC"; then - AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc) - test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH]) -fi - -AC_PROG_CC_GNU - -if test $ac_cv_prog_gcc = yes; then - GCC=yes -dnl Check whether -g works, even if CFLAGS is set, in case the package -dnl plays around with CFLAGS (such as to build both debugging and -dnl normal versions of a library), tasteless as that idea is. - ac_test_CFLAGS="${CFLAGS+set}" - ac_save_CFLAGS="$CFLAGS" - CFLAGS= - AC_PROG_CC_G - if test "$ac_test_CFLAGS" = set; then - CFLAGS="$ac_save_CFLAGS" - elif test $ac_cv_prog_cc_g = yes; then - CFLAGS="-g -O2" - else - CFLAGS="-O2" - fi -else - GCC= - test "${CFLAGS+set}" = set || CFLAGS="-g" -fi -]) - -LIB_AC_PROG_CC - -AS=${AS-as} -AC_SUBST(AS) -AR=${AR-ar} -AC_SUBST(AR) -LD=${LD-ld} -AC_SUBST(LD) -AC_PROG_RANLIB - -host_makefile_frag=${srcdir}/../config/default.mh -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 deleted file mode 100644 index 39f31d499..000000000 --- a/libgloss/m68k/cpu32bug.S +++ /dev/null @@ -1,118 +0,0 @@ -/* - * 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 deleted file mode 100644 index 583b1a9e6..000000000 --- a/libgloss/m68k/cpu32bug.h +++ /dev/null @@ -1,35 +0,0 @@ -/* - * 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 deleted file mode 100644 index cb7848157..000000000 --- a/libgloss/m68k/crt0.S +++ /dev/null @@ -1,143 +0,0 @@ -/* - * 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 deleted file mode 100644 index 6baae8b19..000000000 --- a/libgloss/m68k/dbug-exit.S +++ /dev/null @@ -1,29 +0,0 @@ -/* - * 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 deleted file mode 100644 index 128c260b5..000000000 --- a/libgloss/m68k/dbug-inbyte.S +++ /dev/null @@ -1,34 +0,0 @@ -/* - * 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 deleted file mode 100644 index 9d0c86443..000000000 --- a/libgloss/m68k/dbug-outbyte.S +++ /dev/null @@ -1,34 +0,0 @@ -/* - * 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 deleted file mode 100644 index 2cfcb4665..000000000 --- a/libgloss/m68k/dtor.C +++ /dev/null @@ -1,25 +0,0 @@ -#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 deleted file mode 100644 index 41db57fc9..000000000 --- a/libgloss/m68k/idp-inbyte.c +++ /dev/null @@ -1,41 +0,0 @@ -/* 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 deleted file mode 100644 index a95dc0c53..000000000 --- a/libgloss/m68k/idp-outbyte.c +++ /dev/null @@ -1,74 +0,0 @@ -/* 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) - -/* - * raw_outbyte -- send a byte to the DUART buffer. This only sends - * to channel A. - */ -static void -_DEFUN (raw_outbyte, (byte), - char byte) -{ - /* First, wait for the UART to finish clocking out the last - character we sent, if any. Then, give it the next character to - work on. By waiting first, then handing off a new character, we - allow the UART to work while the processor (perhaps) does other - things; if we waited after sending each character, there'd be no - opportunity for parallelism. */ - while ((READREG (DUART_SRA) & 0x04) == 0x00) - ; - - WRITEREG (DUART_TBA, byte); /* write the byte */ -} - - -/* - * outbyte -- send BYTE out the DUART's channel A, for display to - * the user. - * - * Normally, this is identical to raw_outbyte, but if - * GDB_MONITOR_OUTPUT is #defined, we prefix each byte we send - * with a ^O character (ASCII 15). This is a signal to GDB's - * `rom68k' target to pass the character directly on to the user; - * it allows programs to do console output under GDB. - * - * We compile this file twice: once with GDB_MONITOR_OUTPUT - * #defined, and once without. The former .o file we put in - * libidpgdb.a, which is included in the link by idpgdb.ld; the - * latter we put in libidp.a, which is selected by idp.ld. - */ -void -_DEFUN (outbyte, (byte), - char byte) -{ -#ifdef GDB_MONITOR_OUTPUT - raw_outbyte (0x0f); -#endif - raw_outbyte (byte); -} diff --git a/libgloss/m68k/idp.ld b/libgloss/m68k/idp.ld deleted file mode 100644 index db6d8c56d..000000000 --- a/libgloss/m68k/idp.ld +++ /dev/null @@ -1,146 +0,0 @@ -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/idpgdb.ld b/libgloss/m68k/idpgdb.ld deleted file mode 100644 index 9d24e28cf..000000000 --- a/libgloss/m68k/idpgdb.ld +++ /dev/null @@ -1,146 +0,0 @@ -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(-lidpgdb -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 deleted file mode 100644 index 125ae8b50..000000000 --- a/libgloss/m68k/leds.c +++ /dev/null @@ -1,81 +0,0 @@ -/* - * 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 deleted file mode 100644 index 919c38143..000000000 --- a/libgloss/m68k/leds.h +++ /dev/null @@ -1,36 +0,0 @@ -/* 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 deleted file mode 100644 index 1d9d4cec5..000000000 --- a/libgloss/m68k/mc68681reg.h +++ /dev/null @@ -1,43 +0,0 @@ -/* 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 deleted file mode 100644 index d5ee9b5fe..000000000 --- a/libgloss/m68k/mc68ec.c +++ /dev/null @@ -1,48 +0,0 @@ -/* 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 deleted file mode 100644 index fbc4c61b5..000000000 --- a/libgloss/m68k/mvme-stub.c +++ /dev/null @@ -1,734 +0,0 @@ -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 deleted file mode 100644 index d2ab37f4a..000000000 --- a/libgloss/m68k/mvme.S +++ /dev/null @@ -1,155 +0,0 @@ -/* 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 deleted file mode 100644 index 1722c1804..000000000 --- a/libgloss/m68k/mvme135-asm.S +++ /dev/null @@ -1,397 +0,0 @@ -/* - * 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 deleted file mode 100644 index dba0dbe23..000000000 --- a/libgloss/m68k/mvme135.ld +++ /dev/null @@ -1,128 +0,0 @@ -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 deleted file mode 100644 index fd3ae1014..000000000 --- a/libgloss/m68k/mvme162.ld +++ /dev/null @@ -1,129 +0,0 @@ -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 deleted file mode 100644 index 8b83621d6..000000000 --- a/libgloss/m68k/mvme162lx-asm.S +++ /dev/null @@ -1,292 +0,0 @@ -/* - * 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 deleted file mode 100644 index 4570b0e18..000000000 --- a/libgloss/m68k/sbc5204.ld +++ /dev/null @@ -1,127 +0,0 @@ -/* 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 deleted file mode 100644 index d082a08d1..000000000 --- a/libgloss/m68k/sbc5206.ld +++ /dev/null @@ -1,127 +0,0 @@ -/* 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/sim-abort.c b/libgloss/m68k/sim-abort.c deleted file mode 100644 index 4960de8f8..000000000 --- a/libgloss/m68k/sim-abort.c +++ /dev/null @@ -1,21 +0,0 @@ -/* - * sim-abort.c -- m68k abort support when running under the simulator. - * - * Copyright (c) 1995, 2001 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. - */ - -void abort(void) -{ - write (2, "Abort called.\n", sizeof("Abort called.\n")-1); - exit (1); -} diff --git a/libgloss/m68k/sim-crt0.S b/libgloss/m68k/sim-crt0.S deleted file mode 100644 index bc255142c..000000000 --- a/libgloss/m68k/sim-crt0.S +++ /dev/null @@ -1,121 +0,0 @@ -/* - * crt0.S -- startup file for m68k-coff - * - * Copyright (c) 1995, 1996, 1998, 2001 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 (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): - /* 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: - -/* - * 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/sim-errno.c b/libgloss/m68k/sim-errno.c deleted file mode 100644 index de5f914ac..000000000 --- a/libgloss/m68k/sim-errno.c +++ /dev/null @@ -1,28 +0,0 @@ -/* - * sim-errno.c -- return address of errno for current thread. - * - * Copyright (c) 1995, 2001 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. - */ - - -/* syscall handler branches here in case of error. */ - -extern int *__errno(); - -int -_cerror (e) - int e; -{ - *__errno() = e; - return -1; -} diff --git a/libgloss/m68k/sim-funcs.c b/libgloss/m68k/sim-funcs.c deleted file mode 100644 index a4b14ca1a..000000000 --- a/libgloss/m68k/sim-funcs.c +++ /dev/null @@ -1,29 +0,0 @@ -/* sim-funcs.c - random needed simulator functions - * - * Copyright (c) 2001 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 <unistd.h> - -int -kill(int pid, int sig) -{ - exit(0xdead); -} - -pid_t -getpid() -{ - return 42; -} - diff --git a/libgloss/m68k/sim-inbyte.c b/libgloss/m68k/sim-inbyte.c deleted file mode 100644 index 3fa3f2474..000000000 --- a/libgloss/m68k/sim-inbyte.c +++ /dev/null @@ -1,26 +0,0 @@ -/* - * sim-inbyte.c -- read a character from standard input. - * - * Copyright (c) 1995, 2001 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. - */ - -int -inbyte () -{ - char c; - - if (read (0, &c, 1) <= 0) - return -1; - - return c; -} diff --git a/libgloss/m68k/sim-print.c b/libgloss/m68k/sim-print.c deleted file mode 100644 index 18ca02261..000000000 --- a/libgloss/m68k/sim-print.c +++ /dev/null @@ -1,43 +0,0 @@ -/* sim-print.c -- print a string on the output device. - * - * Copyright (c) 1995, 2001 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. - */ - -/* - * print -- do a raw print of a string - */ -void -print (ptr) - char *ptr; -{ - int len = 0; - char *p = ptr; - - while (*p != '\0') - p++; - - write (1, ptr, p-ptr); -} - -/* - * outbyte -- write a single character. - */ - -void -outbyte (c_int) - int c_int; -{ - char c = c_int; - - write (1, &c, 1); -} diff --git a/libgloss/m68k/sim-sbrk.c b/libgloss/m68k/sim-sbrk.c deleted file mode 100644 index 83e5287eb..000000000 --- a/libgloss/m68k/sim-sbrk.c +++ /dev/null @@ -1,30 +0,0 @@ -/* - * sim-sbrk.c -- m68k sbrk support when running under the simulator. - * - * Copyright (c) 1995, 2001 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. - */ - -extern char _end[]; -static char *curbrk = _end; - -char * -sbrk (incr) - int incr; -{ - char *oldbrk = curbrk; - curbrk += incr; - if (brk (curbrk) == -1) - return (char *) -1; - - return oldbrk; -} diff --git a/libgloss/m68k/sim.ld b/libgloss/m68k/sim.ld deleted file mode 100644 index b44fd07b3..000000000 --- a/libgloss/m68k/sim.ld +++ /dev/null @@ -1,87 +0,0 @@ -STARTUP(sim-crt0.o) -OUTPUT_ARCH(m68k) - -SEARCH_DIR(.) -GROUP(-lsim -lc -lgcc -lsim) -__DYNAMIC = 0; - - -MEMORY -{ - ram (rwx) : ORIGIN = 0x80000000, LENGTH = 1M -} - -PROVIDE (__stack = 0); - -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/simulator.S b/libgloss/m68k/simulator.S deleted file mode 100644 index 2161421e9..000000000 --- a/libgloss/m68k/simulator.S +++ /dev/null @@ -1,84 +0,0 @@ -/* - * simulator.S -- m68k simulator system calls. - * - * Copyright (c) 1995, 2001 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" - -#define SYSCALL(x) .word 0x4afc, x - -#define FUNC_START(x) .globl x; x: -#define FUNC_END(x) -#define FUNC_NAME(x) SYM(x) - -FUNC_START(_exit) - SYSCALL(1) - -/* - * Insure that the debugger tells the client that the PC is in _exit, - * not whatever function happens to follow this function. - */ - -0: nop - jmp 0b /* we never should return, but... */ - -FUNC_END(_exit) - -FUNC_START(read) - SYSCALL(3) - bcs FUNC_NAME(_cerror) - rts -FUNC_END(read) - -FUNC_START(write) - SYSCALL(4) - bcs FUNC_NAME(_cerror) - rts -FUNC_END(write) - -FUNC_START(open) - SYSCALL(5) - bcs FUNC_NAME(_cerror) - rts -FUNC_END(open) - -FUNC_START(close) - SYSCALL(6) - bcs FUNC_NAME(_cerror) - rts -FUNC_END(close) - -FUNC_START(brk) - SYSCALL(17) - bcs FUNC_NAME(_cerror) - rts -FUNC_END(brk) - -FUNC_START(lseek) - SYSCALL(199) - bcs FUNC_NAME(_cerror) - rts -FUNC_END(lseek) - -FUNC_START(fstat) - SYSCALL(28) - bcs FUNC_NAME(_cerror) - rts -FUNC_END(lseek) - -FUNC_START(isatty) - SYSCALL(29) - bcs FUNC_NAME(_cerror) - rts -FUNC_END(isatty) diff --git a/libgloss/m68k/test.c b/libgloss/m68k/test.c deleted file mode 100644 index d84045d60..000000000 --- a/libgloss/m68k/test.c +++ /dev/null @@ -1,26 +0,0 @@ -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); -} |