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2008-12-17 Jon Beniston <jon@beniston.com>

Browse Source 
* README: Add description of lm32 directory.
        * configure.in: Add lm32 target.
        * configure: Regenerated.
        * libnosys/configure.in: Add lm32 target.
        * libnosys/configure: Regenerated.
        * lm32: New directory.
        * lm32/aclocal.m4: New file.
        * lm32/Makefile.in: New file.
        * lm32/configure.in: New file.
        * lm32/configure: New file.
        * lm32/crt0.S: New file.
        * lm32/isatty.c: New file.
        * lm32/scall.S: New file.
        * lm32/sim.ld: New file.
This commit is contained in:
Jeff Johnston 2008-12-17 23:08:09 +00:00
parent b7d584e643
commit d78a82f939
14 changed files with 6369 additions and 2597 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
libgloss/ChangeLog
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@ -1,3 +1,20 @@
2008-12-17 Jon Beniston <jon@beniston.com>
* README: Add description of lm32 directory.
* configure.in: Add lm32 target.
* configure: Regenerated.
* libnosys/configure.in: Add lm32 target.
* libnosys/configure: Regenerated.
* lm32: New directory.
* lm32/aclocal.m4: New file.
* lm32/Makefile.in: New file.
* lm32/configure.in: New file.
* lm32/configure: New file.
* lm32/crt0.S: New file.
* lm32/isatty.c: New file.
* lm32/scall.S: New file.
* lm32/sim.ld: New file.
2008-12-11 Ken Werner <ken.werner@de.ibm.com
* spu/crt0.S: Call __monstartup if profiling is enabled.

1
libgloss/README
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@ -5,3 +5,4 @@ m68k - Motorola MVME135 and IDP board. For CPU32 systems.
mep - Toshiba Media Processor.
pa - WinBond and Oki boards with a PA.
mips - R3000 support. Array Tech LSI33k based RAID disk controller.
lm32 - Lattice Mico32 simulator.

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libgloss/configure vendored
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4
libgloss/configure.in
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@ -100,6 +100,10 @@ case "${target}" in
AC_CONFIG_SUBDIRS(frv)
config_testsuite=true
;;
lm32*-*-*)
AC_CONFIG_SUBDIRS(lm32)
config_testsuite=true
;;
mcore-*-*)
AC_CONFIG_SUBDIRS(mcore)
config_testsuite=true

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2
libgloss/libnosys/configure.in
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@ -63,6 +63,8 @@ case "${target}" in
;;
i[3456]86-*-sco*)
;;
lm32-*-*)
;;
m32r-*-*)
;;
mn10?00-*-*)

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libgloss/lm32/Makefile.in Normal file
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@ -0,0 +1,101 @@
VPATH = @srcdir@ @srcdir@/..
srcdir = @srcdir@
objdir = .
srcroot = $(srcdir)/../..
objroot = $(objdir)/../..
mkinstalldirs = $(SHELL) $(srcroot)/mkinstalldirs
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)
INSTALL = @INSTALL@
INSTALL_PROGRAM = @INSTALL_PROGRAM@
INSTALL_DATA = @INSTALL_DATA@
# Multilib support variables.
# TOP is used instead of MULTI{BUILD,SRC}TOP.
MULTIDIRS =
MULTISUBDIR =
MULTIDO = true
MULTICLEAN = true
SHELL = /bin/sh
CC = @CC@
AS = @AS@
AR = @AR@
LD = @LD@
RANLIB = @RANLIB@
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`
OBJS = isatty.o scall.o
SCRIPTS = sim.ld
CRT0S = crt0.o
BSPS = libgloss.a
# Host specific makefile fragment comes in here.
@host_makefile_frag@
all: $(CRT0S) $(BSPS)
libgloss.a: $(OBJS)
${AR} ${ARFLAGS} $@ $(OBJS)
${RANLIB} $@
#
# Standard targets
#
clean mostlyclean:
rm -f a.out core *.i *.o *-test *.srec *.dis *.x
distclean maintainer-clean realclean: clean
rm -f Makefile config.status *~
.PHONY: install info install-info clean-info
install: install-scripts # install-includes
@for crt0 in ${CRT0S}; do\
$(INSTALL_PROGRAM) $${crt0} $(tooldir)/lib${MULTISUBDIR}; \
done
@for bsp in ${BSPS}; do\
$(INSTALL_PROGRAM) $${bsp} $(tooldir)/lib${MULTISUBDIR}; \
done
install-includes:
$(mkinstalldirs) $(DESTDIR)$(tooldir)/include/excess; \
for i in $(srcdir)/*.h; do \
$(INSTALL_DATA) $$i $(DESTDIR)$(tooldir)/include/excess/`basename $$i`; \
done;
install-scripts:
@for script in ${SCRIPTS}; do\
$(INSTALL_DATA) ${srcdir}/$${script} $(tooldir)/lib${MULTISUBDIR}; \
done
doc:
info:
install-info:
clean-info:
Makefile: Makefile.in config.status @host_makefile_frag_path@
$(SHELL) config.status
config.status: configure
$(SHELL) config.status --recheck

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dnl Process this file with autoconf to produce a configure script.
AC_PREREQ(2.59)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 "${with_target_subdir}" != "." ; then
libgloss_topdir="${srcdir}/${with_multisrctop}../../.."
else
libgloss_topdir="${srcdir}/${with_multisrctop}../.."
fi
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target=${target}
with_multisubdir=${with_multisubdir}
ac_configure_args="${ac_configure_args} --enable-multilib"
CONFIG_SHELL=${CONFIG_SHELL-/bin/sh}
libgloss_topdir=${libgloss_topdir}
)
AC_OUTPUT

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/*
* Lattice Mico32 C startup code.
* Contributed by Jon Beniston <jon@beniston.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
.section .boot, "ax", @progbits
/* Program starts here */
.global _start
_start:
/* Setup stack and global pointer */
mvhi sp, hi(_fstack)
ori sp, sp, lo(_fstack)
mvhi gp, hi(_gp)
ori gp, gp, lo(_gp)
/* Clear BSS */
mvhi r1, hi(_fbss)
ori r1, r1, lo(_fbss)
mvi r2, 0
mvhi r3, hi(_ebss)
ori r3, r3, lo(_ebss)
sub r3, r3, r1
calli memset
/* Call C++ constructors */
calli _init
/* Call C++ destructors on exit */
mvhi r1, hi(_fini)
ori r1, r1, lo(_fini)
calli atexit
/* Call main program */
mvi r1, 0
mvi r2, 0
mvi r3, 0
calli main
/* Call exit, which doesn't return, to perform any clean up */
calli exit

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/*
* Lattice Mico32 implementation of isatty system call.
* Contributed by Jon Beniston <jon@beniston.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include "glue.h"
/*
* isatty -- returns 1 if connected to a terminal device,
* returns 0 if not.
* stdin, stdout and sterrr are assumed to be serial ports,
* other files are not.
*/
int
_DEFUN (_isatty, (fd),
int fd)
{
if ((fd == 0) || (fd == 1) || (fd == 2))
return 1;
else
return 0;
}

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/*
* Lattice Mico32 system calls.
* Contributed by Jon Beniston <jon@beniston.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <syscall.h>
/*
* System call convention (as implemented in simulator:
* - System call number in register r8
* - Return value in r1 and r2 (only if 64-bit value)
* - errno in r3
*/
.extern errno
.global _write
_write:
mvi r8, SYS_write
scall
mvhi r4, hi(errno)
ori r4, r4, lo(errno)
sw (r4+0), r3
ret
.global _read
_read:
mvi r8, SYS_read
scall
mvhi r4, hi(errno)
ori r4, r4, lo(errno)
sw (r4+0), r3
ret
.global _open
_open:
mvi r8, SYS_open
scall
mvhi r4, hi(errno)
ori r4, r4, lo(errno)
sw (r4+0), r3
ret
.global _close
_close:
mvi r8, SYS_close
scall
mvhi r4, hi(errno)
ori r4, r4, lo(errno)
sw (r4+0), r3
ret
.global _lseek
_lseek:
mvi r8, SYS_lseek
scall
mvhi r4, hi(errno)
ori r4, r4, lo(errno)
sw (r4+0), r3
ret
.global _fstat
_fstat:
mvi r8, SYS_fstat
scall
mvhi r4, hi(errno)
ori r4, r4, lo(errno)
sw (r4+0), r3
ret
.global _stat
_stat:
mvi r8, SYS_stat
scall
mvhi r4, hi(errno)
ori r4, r4, lo(errno)
sw (r4+0), r3
ret
.global _link
_link:
mvi r8, SYS_link
scall
mvhi r4, hi(errno)
ori r4, r4, lo(errno)
sw (r4+0), r3
ret
.global _unlink
_unlink:
mvi r8, SYS_unlink
scall
mvhi r4, hi(errno)
ori r4, r4, lo(errno)
sw (r4+0), r3
ret
.global _exit
_exit:
/* This call doesn't return */
mvi r8, SYS_exit
scall

149
libgloss/lm32/sim.ld Normal file
View File

@ -0,0 +1,149 @@
/*
* Simulator Link script for Lattice Mico32.
* Contributed by Jon Beniston <jon@beniston.com>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
OUTPUT_FORMAT("elf32-lm32")
ENTRY(_start)
INPUT(crti.o crtbegin.o crt0.o crtend.o crtn.o)
GROUP(-lgloss -lnosys -lc -lgcc)
MEMORY
{
ram : ORIGIN = 0x00000000, LENGTH = 0x100000
}
SECTIONS
{
.boot : { *(.boot) } > ram
/* Code */
.text :
{
. = ALIGN(4);
_ftext = .;
_ftext_rom = LOADADDR(.text);
*(.text .stub .text.* .gnu.linkonce.t.*)
*(.gnu.warning)
KEEP (*(.init))
KEEP (*(.fini))
/* Constructors and destructors */
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))
KEEP (*(.jcr))
_etext = .;
} > ram =0
/* Exception handlers */
.eh_frame_hdr : { *(.eh_frame_hdr) } > ram
.eh_frame : { KEEP (*(.eh_frame)) } > ram
.gcc_except_table : { *(.gcc_except_table) *(.gcc_except_table.*) } > ram
/* Read-only data */
.rodata :
{
. = ALIGN(4);
_frodata = .;
_frodata_rom = LOADADDR(.rodata);
*(.rodata .rodata.* .gnu.linkonce.r.*)
*(.rodata1)
_erodata = .;
} > ram
/* Data */
.data :
{
. = ALIGN(4);
_fdata = .;
_fdata_rom = LOADADDR(.data);
*(.data .data.* .gnu.linkonce.d.*)
*(.data1)
SORT(CONSTRUCTORS)
_gp = ALIGN(16) + 0x7ff0;
*(.sdata .sdata.* .gnu.linkonce.s.*)
_edata = .;
} > ram
/* BSS */
.bss :
{
. = ALIGN(4);
_fbss = .;
*(.dynsbss)
*(.sbss .sbss.* .gnu.linkonce.sb.*)
*(.scommon)
*(.dynbss)
*(.bss .bss.* .gnu.linkonce.b.*)
*(COMMON)
. = ALIGN(4);
_ebss = .;
_end = .;
PROVIDE (end = .);
} > ram
/* First location in stack is highest address in RAM */
PROVIDE(_fstack = ORIGIN(ram) + LENGTH(ram) - 4);
/* Stabs debugging sections. */
.stab 0 : { *(.stab) }
.stabstr 0 : { *(.stabstr) }
.stab.excl 0 : { *(.stab.excl) }
.stab.exclstr 0 : { *(.stab.exclstr) }
.stab.index 0 : { *(.stab.index) }
.stab.indexstr 0 : { *(.stab.indexstr) }
.comment 0 : { *(.comment) }
/* DWARF debug sections.
Symbols in the DWARF debugging sections are relative to the beginning
of the section so we begin them at 0. */
/* DWARF 1 */
.debug 0 : { *(.debug) }
.line 0 : { *(.line) }
/* GNU DWARF 1 extensions */
.debug_srcinfo 0 : { *(.debug_srcinfo) }
.debug_sfnames 0 : { *(.debug_sfnames) }
/* DWARF 1.1 and DWARF 2 */
.debug_aranges 0 : { *(.debug_aranges) }
.debug_pubnames 0 : { *(.debug_pubnames) }
/* DWARF 2 */
.debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) }
.debug_abbrev 0 : { *(.debug_abbrev) }
.debug_line 0 : { *(.debug_line) }
.debug_frame 0 : { *(.debug_frame) }
.debug_str 0 : { *(.debug_str) }
.debug_loc 0 : { *(.debug_loc) }
.debug_macinfo 0 : { *(.debug_macinfo) }
/* SGI/MIPS DWARF 2 extensions */
.debug_weaknames 0 : { *(.debug_weaknames) }
.debug_funcnames 0 : { *(.debug_funcnames) }
.debug_typenames 0 : { *(.debug_typenames) }
.debug_varnames 0 : { *(.debug_varnames) }
}