deac/osd-contiki
1
0
Fork 0
Code Issues Pull requests Releases Wiki Activity

[libgloss] * configure.in: Add rl78. * configure: Regenerate. * rl78: New directory

Browse source 
[newlib]
* configure.host: Add rl78.
* libc/include/machine/ieeefp.h: Add rl78 support.
* libc/include/machine/setjmp.h: Add rl78 support.
* libc/machine/configure.in: Add rl78.
* libc/machine/rl78: New directory.
This commit is contained in:
DJ Delorie 2011-11-29 06:33:47 +00:00
commit fea10954a6
33 changed files with 6340 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

160
Makefile.in Normal file
View file

@ -0,0 +1,160 @@
# Copyright (c) 2008, 2009, 2011 Red Hat Inc
#
# The authors hereby grant permission to use, copy, modify, distribute,
# and license this software and its documentation for any purpose, provided
# that existing copyright notices are retained in all copies and that this
# notice is included verbatim in any distributions. No written agreement,
# license, or royalty fee is required for any of the authorized uses.
# Modifications to this software may be copyrighted by their authors
# and need not follow the licensing terms described here, provided that
# the new terms are clearly indicated on the first page of each file where
# they apply.
# Makefile for libgloss/rl78.
VPATH = @srcdir@
srcdir = @srcdir@
objdir = .
srcroot = $(srcdir)/../..
objroot = $(objdir)/../..
prefix = @prefix@
exec_prefix = @exec_prefix@
host_alias = @host_alias@
target_alias = @target_alias@
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 = rc
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 = $(srcdir)/rl78.ld $(srcdir)/rl78-sim.ld
CRT = gcrt0.o crt0.o crtn.o
SIM_BSP = libsim.a
LIBNOSYS = ../libnosys/libnosys.a
SIM_OBJS = \
sbrk.o \
exit.o \
open.o \
close.o \
read.o \
write.o \
lseek.o \
unlink.o \
getpid.o \
kill.o \
fstat.o \
argvlen.o \
argv.o \
chdir.o \
stat.o \
chmod.o \
utime.o \
time.o \
gettimeofday.o \
times.o \
link.o \
isatty.o \
abort.o \
mcount.o
#### Host specific Makefile fragment comes in here.
@host_makefile_frag@
# Override .S.o rule to pass assembler debugging flags
.S.o:
$(CC) -Wa,-gdwarf2 -Wa,-I$(srcdir) $(CFLAGS_FOR_TARGET) $(INCLUDES) $(CFLAGS) -c $<
all: $(CRT) $(SIM_BSP) copy_scripts_to_objdir
$(SIM_BSP): $(SIM_OBJS)
$(AR) $(ARFLAGS) $@ $?
$(RANLIB) $@
copy_scripts_to_objdir: $(SCRIPTS)
cp $(SCRIPTS) $(objdir)
# Dependencies
SDEPS = $(srcdir)/rl78-sys.h $(srcdir)/../syscall.h
abort.o : $(SDEPS)
argv.o : $(SDEPS)
argvlen.o : $(SDEPS)
chdir.o : $(SDEPS)
chmod.o : $(SDEPS)
close.o : $(SDEPS)
exit.o : $(SDEPS)
fstat.o : $(SDEPS)
getpid.o : $(SDEPS)
gettimeofday.o : $(SDEPS)
gcrt0.o: gcrt0.S crt0.S
kill.o : $(SDEPS)
link.o : $(SDEPS)
lseek.o : $(SDEPS)
mcount.o : $(SDEPS)
open.o : $(SDEPS)
read.o : $(SDEPS)
sigprocmask.o : $(SDEPS)
sleep.o : $(SDEPS)
stat.o : $(SDEPS)
time.o : $(SDEPS)
times.o : $(SDEPS)
unlink.o : $(SDEPS)
utime.o : $(SDEPS)
write.o : $(SDEPS)
install: $(CRT) $(SIM_BSP) $(SCRIPTS)
for c in $(CRT) $(SIM_BSP); do \
$(INSTALL_DATA) $$c $(tooldir)/lib${MULTISUBDIR}/$$c ;\
done
for c in $(SCRIPTS); do \
b=`basename $$c`; \
$(INSTALL_DATA) $$c $(tooldir)/lib${MULTISUBDIR}/$$b ;\
done
clean mostlyclean:
rm -f *.o *.a
distclean maintainer-clean realclean: clean
rm -f Makefile config.cache config.log config.status
.PHONY: info dvi doc install-info clean-info
info doc dvi:
install-info:
clean-info:
Makefile: Makefile.in config.status @host_makefile_frag_path@
$(SHELL) config.status
config.status: configure
$(SHELL) config.status --recheck

50
abort.S Normal file
View file

@ -0,0 +1,50 @@
/*
Copyright (c) 2011 Red Hat Incorporated.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
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.
The name of Red Hat Incorporated may not be used to endorse
or promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 RED HAT INCORPORATED 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 "rl78-sys.h"
.global _abort
.type _abort, @function
_abort:
/* This is for debuggers. The simulator stops here too. */
brk
movw ax, #42
push ax
SYSCALL(SYS_kill)
pop ax
/* Else, exit. */
call !!__exit
.size _abort, . - _abort

35
argv.S Normal file
View file

@ -0,0 +1,35 @@
/*
Copyright (c) 2011 Red Hat Incorporated.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
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.
The name of Red Hat Incorporated may not be used to endorse
or promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 RED HAT INCORPORATED 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 "rl78-sys.h"
ERR(argv)

35
argvlen.S Normal file
View file

@ -0,0 +1,35 @@
/*
Copyright (c) 2011 Red Hat Incorporated.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
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.
The name of Red Hat Incorporated may not be used to endorse
or promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 RED HAT INCORPORATED 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 "rl78-sys.h"
ERR(argvlen)

35
chdir.S Normal file
View file

@ -0,0 +1,35 @@
/*
Copyright (c) 2011 Red Hat Incorporated.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
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.
The name of Red Hat Incorporated may not be used to endorse
or promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 RED HAT INCORPORATED 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 "rl78-sys.h"
ERR(chdir)

35
chmod.S Normal file
View file

@ -0,0 +1,35 @@
/*
Copyright (c) 2011 Red Hat Incorporated.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
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.
The name of Red Hat Incorporated may not be used to endorse
or promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 RED HAT INCORPORATED 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 "rl78-sys.h"
ERR(chmod)

35
close.S Normal file
View file

@ -0,0 +1,35 @@
/*
Copyright (c) 2011 Red Hat Incorporated.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
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.
The name of Red Hat Incorporated may not be used to endorse
or promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 RED HAT INCORPORATED 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 "rl78-sys.h"
OK(close)

3815
configure vendored Normal file
View file

File diff suppressed because it is too large Load diff

55
configure.in Normal file
View file

@ -0,0 +1,55 @@
dnl Process this file with autoconf to produce a configure script.
AC_PREREQ(2.59)
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}/${with_multisrctop}../.."
fi
else
libgloss_topdir="${srcdir}/../.."
fi
AC_CONFIG_AUX_DIR($libgloss_topdir)
AC_CANONICAL_SYSTEM
AC_ARG_PROGRAM
AC_PROG_INSTALL
LIB_AC_PROG_CC
AS=${AS-as}
AC_SUBST(AS)
AR=${AR-ar}
AC_SUBST(AR)
LD=${LD-ld}
AC_SUBST(LD)
AC_PROG_RANLIB
LIB_AM_PROG_AS
host_makefile_frag=${srcdir}/../config/default.mh
dnl We have to assign the same value to other variables because autoconf
dnl doesn't provide a mechanism to substitute a replacement keyword with
dnl arbitrary data or pathnames.
dnl
host_makefile_frag_path=$host_makefile_frag
AC_SUBST(host_makefile_frag_path)
AC_SUBST_FILE(host_makefile_frag)
AC_CONFIG_FILES(Makefile,
. ${libgloss_topdir}/config-ml.in,
srcdir=${srcdir}
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

327
crt0.S Normal file
View file

@ -0,0 +1,327 @@
/* Copyright (c) 2011 Red Hat Incorporated.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
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.
The name of Red Hat Incorporated may not be used to endorse
or promote products derived from this software without specific
prior written permission.
This software is provided by the copyright holders 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 Red Hat
incorporated 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 "rl78-sys.h"
.section ".vec","a"
.short _start
.section ".ivec","a"
#define IV(x) .weak _##x##_handler | .short _##x##_handler
#define IVx() .short 0
/* To use a vector, simply define a global function named foo_handler()
for any IV(foo) listed below (i.e. tm05_handler) */
.global _interrupt_vector_table
_interrupt_vector_table:
IV(wdti)
IV(lvi)
IV(p0)
IV(p1)
IV(p2)
IV(p3)
IV(p4)
IV(p5)
IV(st2)
IV(sr2)
IV(sre2)
IV(dma0)
IV(dma1)
IV(st0)
IV(sr0)
IV(tm01h)
IV(st1)
IV(sr1)
IV(sre1)
IV(iica0)
IV(tm00)
IV(tm01)
IV(tm02)
IV(tm03)
IV(ad)
IV(rtc)
IV(it)
IV(kr)
IV(st3)
IV(sr3)
IV(tm13)
IV(tm04)
IV(tm05)
IV(tm06)
IV(tm07)
IV(p6)
IV(p7)
IV(p8)
IV(p9)
IV(p10)
IV(p11)
IV(tm10)
IV(tm12)
IV(sre3)
IV(tm13h)
IV(md)
IV(iica1)
IV(fl)
IV(dma2)
IV(dma3)
IV(tm14)
IV(tm15)
IV(tm16)
IV(tm17)
IVx()
IVx()
IVx()
IVx()
IVx()
IVx()
IVx()
IV(brk)
/* Note: 126 vectors */
.section ".csstart", "ax"
.global __csstart
__csstart:
br !!_start
.weak __rl78_option_byte_0
.weak __rl78_option_byte_1
.weak __rl78_option_byte_2
.weak __rl78_option_byte_3
__rl78_option_byte_0 = 0x6e
__rl78_option_byte_1 = 0xff
__rl78_option_byte_2 = 0xe8
__rl78_option_byte_3 = 0x85
.section ".opt", "a"
.byte __rl78_option_byte_0
.byte __rl78_option_byte_1
.byte __rl78_option_byte_2
.byte __rl78_option_byte_3
.text
.global _start
.type _start, @function
_start:
movw sp, #__stack
;; block move to initialize .data
;; we're copying from 00:[_romdatastart] to 0F:[_datastart]
;; and our data is not in the mirrored area.
mov es, #0
sel rb0 ; bank 0
movw hl, #__datastart
movw de, #__romdatastart
sel rb1 ; bank 1
movw ax, #__romdatacopysize
shrw ax,1
1:
cmpw ax, #0
bz $1f
decw ax
sel rb0 ; bank 0
movw ax, es:[de]
movw [hl], ax
incw de
incw de
incw hl
incw hl
sel rb1
br $1b
1:
sel rb0 ; bank 0
;; block fill to .bss
sel rb0 ; bank 0
movw hl, #__bssstart
movw ax, #0
sel rb1 ; bank 1
movw ax, #__bsssize
shrw ax,1
1:
cmpw ax, #0
bz $1f
decw ax
sel rb0 ; bank 0
movw [hl], ax
incw hl
incw hl
sel rb1
br $1b
1:
sel rb0 ; bank 0
call !!__rl78_init
#ifdef PROFILE_SUPPORT /* Defined in gcrt0.S. */
movw ax, # _start
push ax
movw ax, # _etext
push ax
call !!__monstartup
#endif
movw ax, #0
push ax /* envp */
push ax /* argv */
push ax /* argc */
call !!_main
.LFE2:
movw ax, r8 ; Save return code.
push ax
#ifdef PROFILE_SUPPORT
call !!__mcleanup
#endif
call !!_exit
.size _start, . - _start
.global _rl78_run_preinit_array
.type _rl78_run_preinit_array,@function
_rl78_run_preinit_array:
movw hl, #__preinit_array_start
movw de, #__preinit_array_end
movw bc, #-2
br $_rl78_run_inilist
.global _rl78_run_init_array
.type _rl78_run_init_array,@function
_rl78_run_init_array:
movw hl, #__init_array_start
movw de, #__init_array_end
movw bc, #2
br $_rl78_run_inilist
.global _rl78_run_fini_array
.type _rl78_run_fini_array,@function
_rl78_run_fini_array:
movw hl, #__fini_array_start
movw de, #__fini_array_end
movw bc, #-2
/* fall through */
;; HL = start of list
;; DE = end of list
;; BC = step direction (+2 or -2)
_rl78_run_inilist:
next_inilist:
movw ax, hl
cmpw ax, de
bz $done_inilist
movw ax, [hl]
cmpw ax, #-1
bz $skip_inilist
cmpw ax, #0
bz $skip_inilist
push ax
push bc
push de
push hl
call ax
pop hl
pop de
pop bc
pop ax
skip_inilist:
movw ax, hl
addw ax, bc
movw hl, ax
br $next_inilist
done_inilist:
ret
.section .init,"ax"
.global __rl78_init
__rl78_init:
.section .fini,"ax"
.global __rl78_fini
__rl78_fini:
call !!_rl78_run_fini_array
.section .data
.global ___dso_handle
.weak ___dso_handle
___dso_handle:
.long 0
;;; Provide Dwarf unwinding information that will help GDB stop
;;; backtraces at the right place. This is stolen from assembly
;;; code generated by GCC with -dA.
.section .debug_frame,"",@progbits
.Lframe0:
.4byte .LECIE0-.LSCIE0 ; Length of Common Information Entry
.LSCIE0:
.4byte 0xffffffff ; CIE Identifier Tag
.byte 0x1 ; CIE Version
.ascii "\0" ; CIE Augmentation
.uleb128 0x1 ; CIE Code Alignment Factor
.sleb128 -1 ; CIE Data Alignment Factor
.byte 0xd ; CIE RA Column
.byte 0xc ; DW_CFA_def_cfa
.uleb128 0xc
.uleb128 0x3
.byte 0x8d ; DW_CFA_offset, column 0xd
.uleb128 0x3
.p2align 2
.LECIE0:
.LSFDE0:
.4byte .LEFDE0-.LASFDE0 ; FDE Length
.LASFDE0:
.4byte .Lframe0 ; FDE CIE offset
.4byte _start ; FDE initial location
.4byte .LFE2 - _start ; FDE address range
.byte 0xf ; DW_CFA_def_cfa_expression
.uleb128 1 ; length of expression
.byte 0x30 ; DW_OP_lit0
.p2align 2
.LEFDE0:
.text

47
crtn.S Normal file
View file

@ -0,0 +1,47 @@
/*
Copyright (c) 2005,2011 Red Hat Incorporated.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
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.
The name of Red Hat Incorporated may not be used to endorse
or promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 RED HAT INCORPORATED 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 .init,"ax"
call !!_rl78_run_preinit_array
call !!_rl78_run_init_array
ret
.global __rl78_init_end
__rl78_init_end:
.section .fini,"ax"
ret
.global __rl78_fini_end
__rl78_fini_end:
.text

43
exit.S Normal file
View file

@ -0,0 +1,43 @@
/*
Copyright (c) 2011 Red Hat Incorporated.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
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.
The name of Red Hat Incorporated may not be used to endorse
or promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 RED HAT INCORPORATED 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 "rl78-sys.h"
.global __exit
.type __exit, @function
__exit:
call !!__rl78_fini
mov a, [sp+4]
halt
SYSCALL(SYS_exit)
.size __exit, . - __exit

35
fstat.S Normal file
View file

@ -0,0 +1,35 @@
/*
Copyright (c) 2011 Red Hat Incorporated.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
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.
The name of Red Hat Incorporated may not be used to endorse
or promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 RED HAT INCORPORATED 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 "rl78-sys.h"
ERR(fstat)

58
gcrt0.S Normal file
View file

@ -0,0 +1,58 @@
/* Copyright (c) 2011 Red Hat Incorporated.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
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.
The name of Red Hat Incorporated may not be used to endorse
or promote products derived from this software without specific
prior written permission.
This software is provided by the copyright holders 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 Red Hat
incorporated 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. */
#define PROFILE_SUPPORT 1
#include "crt0.S"
.global __mcount
.type __mcount, @function
__mcount:
;; When a function is compiled for profiling, gcc creates code
;; like this at the start of each profiled function:
;;
;; .global <func_name>
;; <func_name>:
;; bsr __mcount
;; <...function's prologue...>
;; <...function's body...>
;;
;; We must save all of the argument registers, extract the
;; address of <func_name>, call _mcount_internal to do the
;; real work and then restore the argument registers before
;; returning.
movw ax, [sp]
push ax
call !!__mcount_internal
pop ax
ret
.size __mcount, . - __mcount

36
getpid.S Normal file
View file

@ -0,0 +1,36 @@
/*
Copyright (c) 2011 Red Hat Incorporated.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
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.
The name of Red Hat Incorporated may not be used to endorse
or promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 RED HAT INCORPORATED 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 "rl78-sys.h"
RET(getpid,42)

35
gettimeofday.S Normal file
View file

@ -0,0 +1,35 @@
/*
Copyright (c) 2011 Red Hat Incorporated.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
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.
The name of Red Hat Incorporated may not be used to endorse
or promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 RED HAT INCORPORATED 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 "rl78-sys.h"
ERR(gettimeofday)

36
isatty.S Normal file
View file

@ -0,0 +1,36 @@
/* Copyright (c) 2011 Red Hat Incorporated.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
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.
The name of Red Hat Incorporated may not be used to endorse
or promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 RED HAT INCORPORATED 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 "rl78-sys.h"
.global _isatty
.weak _isatty
_isatty:
RET(_isatty,1)

35
kill.S Normal file
View file

@ -0,0 +1,35 @@
/*
Copyright (c) 2011 Red Hat Incorporated.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
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.
The name of Red Hat Incorporated may not be used to endorse
or promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 RED HAT INCORPORATED 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 "rl78-sys.h"
ERR(kill)

35
link.S Normal file
View file

@ -0,0 +1,35 @@
/*
Copyright (c) 2011 Red Hat Incorporated.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
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.
The name of Red Hat Incorporated may not be used to endorse
or promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 RED HAT INCORPORATED 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 "rl78-sys.h"
ERR(link)

35
lseek.S Normal file
View file

@ -0,0 +1,35 @@
/*
Copyright (c) 2011 Red Hat Incorporated.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
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.
The name of Red Hat Incorporated may not be used to endorse
or promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 RED HAT INCORPORATED 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 "rl78-sys.h"
ERR(lseek)

422
mcount.c Normal file
View file

@ -0,0 +1,422 @@
/*-
* Copyright (c) 1983, 1992, 1993
* The Regents of the University of California. All rights reserved.
*
* 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.
* 4. Neither the name of the University nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
*/
/* This file implements a subset of the profiling support functions.
It has been copied and adapted from mcount.c, gmon.c and gmon.h in
the glibc sources.
Since we do not have access to a timer interrupt in the simulator
the histogram and basic block information is not generated. */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <fcntl.h>
/* Fraction of text space to allocate for histogram counters here, 1/2. */
#define HISTFRACTION 2
/* Fraction of text space to allocate for from hash buckets.
The value of HASHFRACTION is based on the minimum number of bytes
of separation between two subroutine call points in the object code.
Given MIN_SUBR_SEPARATION bytes of separation the value of
HASHFRACTION is calculated as:
HASHFRACTION = MIN_SUBR_SEPARATION / (2 * sizeof (short) - 1);
For example, on the VAX, the shortest two call sequence is:
calls $0,(r0)
calls $0,(r0)
which is separated by only three bytes, thus HASHFRACTION is
calculated as:
HASHFRACTION = 3 / (2 * 2 - 1) = 1
Note that the division above rounds down, thus if MIN_SUBR_FRACTION
is less than three, this algorithm will not work!
In practice, however, call instructions are rarely at a minimal
distance. Hence, we will define HASHFRACTION to be 2 across all
architectures. This saves a reasonable amount of space for
profiling data structures without (in practice) sacrificing
any granularity. */
#define HASHFRACTION 2
/* Percent of text space to allocate for tostructs.
This is a heuristic; we will fail with a warning when profiling
programs with a very large number of very small functions, but
that's normally OK.
2 is probably still a good value for normal programs.
Profiling a test case with 64000 small functions will work if
you raise this value to 3 and link statically (which bloats the
text size, thus raising the number of arcs expected by the heuristic). */
#define ARCDENSITY 3
/* Always allocate at least this many tostructs. This hides the
inadequacy of the ARCDENSITY heuristic, at least for small programs. */
#define MINARCS 50
/* Maximum number of arcs we want to allow.
Used to be max representable value of ARCINDEX minus 2, but now
that ARCINDEX is a long, that's too large; we don't really want
to allow a 48 gigabyte table.
The old value of 1<<16 wasn't high enough in practice for large C++
programs; will 1<<20 be adequate for long? FIXME */
#define MAXARCS (1L << 20)
#define SCALE_1_TO_1 0x10000L
#define GMON_MAGIC "gmon" /* Magic cookie. */
#define GMON_VERSION 1 /* Version number. */
/* General rounding functions. */
#define ROUNDDOWN(x ,y) (((x) / (y)) * (y))
#define ROUNDUP(x, y) ((((x) + (y) - 1) / (y)) * (y))
struct tostruct
{
unsigned long selfpc;
unsigned long count;
unsigned long link;
};
/* Possible states of profiling. */
enum profiling_state
{
GMON_PROF_OFF,
GMON_PROF_ON,
GMON_PROF_BUSY,
GMON_PROF_ERROR
};
/* The profiling data structures are housed in this structure. */
struct gmonparam
{
enum profiling_state state;
unsigned short * kcount;
unsigned long kcountsize;
unsigned long * froms;
unsigned long fromssize;
struct tostruct * tos;
unsigned long tossize;
long tolimit;
unsigned long lowpc;
unsigned long highpc;
unsigned long textsize;
unsigned long hashfraction;
long log_hashfraction;
};
/* Raw header as it appears in the gmon.out file (without padding).
This header always comes first and is then followed by a series
records defined below. */
struct gmon_hdr
{
char cookie[4];
char version[4];
char spare[3 * 4];
};
/* Types of records in this file. */
typedef enum
{
GMON_TAG_TIME_HIST = 0,
GMON_TAG_CG_ARC = 1,
} GMON_Record_Tag;
struct gmon_cg_arc_record
{
char tag; /* Set to GMON_TAG_CG_ARC. */
char from_pc[sizeof (char *)]; /* Address within caller's body. */
char self_pc[sizeof (char *)]; /* Address within callee's body. */
char count[4]; /* Number of arc traversals. */
};
/* Forward declarations. */
void _mcount_internal (unsigned long);
void _monstartup (unsigned long, unsigned long);
void _mcleanup (void);
static struct gmonparam _gmonparam;
void
_mcount_internal (unsigned long frompc)
{
unsigned long selfpc = frompc;
unsigned long * frompcindex;
struct tostruct * top;
struct tostruct * prevtop;
struct gmonparam * p;
unsigned long toindex;
int i;
p = & _gmonparam;
/* Check that we are profiling and that we aren't recursively invoked.
NB/ This version is not thread-safe. */
if (p->state != GMON_PROF_ON)
return;
p->state = GMON_PROF_BUSY;
/* Check that frompcindex is a reasonable pc value.
For example: signal catchers get called from the stack,
not from text space. Too bad. */
frompc -= p->lowpc;
if (frompc > p->textsize)
goto done;
i = frompc >> p->log_hashfraction;
frompcindex = p->froms + i;
toindex = * frompcindex;
if (toindex == 0)
{
/* First time traversing this arc. */
toindex = ++ p->tos[0].link;
if (toindex >= p->tolimit)
/* Halt further profiling. */
goto overflow;
* frompcindex = toindex;
top = p->tos + toindex;
top->selfpc = selfpc;
top->count = 1;
top->link = 0;
goto done;
}
top = p->tos + toindex;
if (top->selfpc == selfpc)
{
/* Arc at front of chain: usual case. */
top->count ++;
goto done;
}
/* Have to go looking down chain for it.
Top points to what we are looking at,
prevtop points to previous top.
We know it is not at the head of the chain. */
for (;;)
{
if (top->link == 0)
{
/* Top is end of the chain and none of the chain
had top->selfpc == selfpc. So we allocate a
new tostruct and link it to the head of the
chain. */
toindex = ++ p->tos[0].link;
if (toindex >= p->tolimit)
goto overflow;
top = p->tos + toindex;
top->selfpc = selfpc;
top->count = 1;
top->link = * frompcindex;
* frompcindex = toindex;
goto done;
}
/* Otherwise, check the next arc on the chain. */
prevtop = top;
top = p->tos + top->link;
if (top->selfpc == selfpc)
{
/* There it is. Increment its count
move it to the head of the chain. */
top->count ++;
toindex = prevtop->link;
prevtop->link = top->link;
top->link = * frompcindex;
* frompcindex = toindex;
goto done;
}
}
done:
p->state = GMON_PROF_ON;
return;
overflow:
p->state = GMON_PROF_ERROR;
return;
}
void
_monstartup (unsigned long lowpc, unsigned long highpc)
{
char * cp;
struct gmonparam * p = & _gmonparam;
/* If the calloc() function has been instrumented we must make sure
that it is not profiled until we are ready. */
p->state = GMON_PROF_BUSY;
/* Round lowpc and highpc to multiples of the density we're using
so the rest of the scaling (here and in gprof) stays in ints. */
p->lowpc = ROUNDDOWN (lowpc, HISTFRACTION * sizeof (* p->kcount));
p->highpc = ROUNDUP (highpc, HISTFRACTION * sizeof (* p->kcount));
p->textsize = p->highpc - p->lowpc;
p->kcountsize = ROUNDUP (p->textsize / HISTFRACTION, sizeof (*p->froms));
p->hashfraction = HASHFRACTION;
p->log_hashfraction = -1;
p->log_hashfraction = ffs (p->hashfraction * sizeof (*p->froms)) - 1;
p->fromssize = p->textsize / HASHFRACTION;
p->tolimit = p->textsize * ARCDENSITY / 100;
if (p->tolimit < MINARCS)
p->tolimit = MINARCS;
else if (p->tolimit > MAXARCS)
p->tolimit = MAXARCS;
p->tossize = p->tolimit * sizeof (struct tostruct);
cp = calloc (p->kcountsize + p->fromssize + p->tossize, 1);
if (cp == NULL)
{
write (2, "monstartup: out of memory\n", 26);
p->tos = NULL;
p->state = GMON_PROF_ERROR;
return;
}
p->tos = (struct tostruct *) cp;
cp += p->tossize;
p->kcount = (unsigned short *) cp;
cp += p->kcountsize;
p->froms = (unsigned long *) cp;
p->tos[0].link = 0;
p->state = GMON_PROF_ON;
}
static void
write_call_graph (int fd)
{
#define NARCS_PER_WRITE 32
struct gmon_cg_arc_record raw_arc[NARCS_PER_WRITE]
__attribute__ ((aligned (__alignof__ (char *))));
unsigned long from_index;
unsigned long to_index;
unsigned long from_len;
unsigned long frompc;
int nfilled;
for (nfilled = 0; nfilled < NARCS_PER_WRITE; ++ nfilled)
raw_arc[nfilled].tag = GMON_TAG_CG_ARC;
nfilled = 0;
from_len = _gmonparam.fromssize / sizeof (*_gmonparam.froms);
for (from_index = 0; from_index < from_len; ++from_index)
{
if (_gmonparam.froms[from_index] == 0)
continue;
frompc = _gmonparam.lowpc;
frompc += (from_index * _gmonparam.hashfraction
* sizeof (*_gmonparam.froms));
for (to_index = _gmonparam.froms[from_index];
to_index != 0;
to_index = _gmonparam.tos[to_index].link)
{
struct gmon_cg_arc_record * arc = raw_arc + nfilled;
memcpy (arc->from_pc, & frompc, sizeof (arc->from_pc));
memcpy (arc->self_pc, & _gmonparam.tos[to_index].selfpc, sizeof (arc->self_pc));
memcpy (arc->count, & _gmonparam.tos[to_index].count, sizeof (arc->count));
if (++ nfilled == NARCS_PER_WRITE)
{
write (fd, raw_arc, sizeof raw_arc);
nfilled = 0;
}
}
}
if (nfilled > 0)
write (fd, raw_arc, nfilled * sizeof (raw_arc[0]));
}
#include <errno.h>
static void
write_gmon (void)
{
struct gmon_hdr ghdr __attribute__ ((aligned (__alignof__ (int))));
int fd;
fd = open ("gmon.out", O_CREAT|O_TRUNC|O_WRONLY, 0666);
if (fd < 0)
{
write (2, "_mcleanup: could not create gmon.out\n", 37);
return;
}
/* Write gmon.out header: */
memset (& ghdr, '\0', sizeof (ghdr));
memcpy (ghdr.cookie, GMON_MAGIC, sizeof (ghdr.cookie));
* (unsigned long *) ghdr.version = GMON_VERSION;
write (fd, & ghdr, sizeof (ghdr));
/* We do not have histogram or basic block information,
so we do not generate these parts of the gmon.out file. */
/* Write call-graph. */
write_call_graph (fd);
close (fd);
}
void
_mcleanup (void)
{
if (_gmonparam.state != GMON_PROF_ERROR)
{
_gmonparam.state = GMON_PROF_OFF;
write_gmon ();
}
/* Free the memory. */
if (_gmonparam.tos != NULL)
{
free (_gmonparam.tos);
_gmonparam.tos = NULL;
}
}

35
open.S Normal file
View file

@ -0,0 +1,35 @@
/*
Copyright (c) 2011 Red Hat Incorporated.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
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.
The name of Red Hat Incorporated may not be used to endorse
or promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 RED HAT INCORPORATED 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 "rl78-sys.h"
ERR(open)

35
read.S Normal file
View file

@ -0,0 +1,35 @@
/*
Copyright (c) 2011 Red Hat Incorporated.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
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.
The name of Red Hat Incorporated may not be used to endorse
or promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 RED HAT INCORPORATED 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 "rl78-sys.h"
ERR(read)

224
rl78-sim.ld Normal file
View file

@ -0,0 +1,224 @@
/*
Copyright (c) 2005,2008,2009,2011 Red Hat Incorporated.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
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.
The name of Red Hat Incorporated may not be used to endorse
or promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 RED HAT INCORPORATED 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.
*/
/* Default linker script, for normal executables */
OUTPUT_ARCH(rl78)
ENTRY(_start)
/* Do we need any of these for elf?
__DYNAMIC = 0; */
/* This is for the simulator - 512k flash, 32k ram, no data flash */
MEMORY {
VEC (r) : ORIGIN = 0x00000, LENGTH = 0x00002
IVEC (r) : ORIGIN = 0x00004, LENGTH = 0x0007c
OPT (r) : ORIGIN = 0x000c0, LENGTH = 0x00004
ROM (r) : ORIGIN = 0x000d8, LENGTH = 0x7ff28
RAM (w) : ORIGIN = 0xf8000, LENGTH = 0x07ee0
STACK (w) : ORIGIN = 0xffee0, LENGTH = 0x00002
}
SECTIONS
{
.vec :
{
*(.vec)
} > VEC
.ivec :
{
*(.ivec)
} > IVEC
.opt :
{
*(.opt)
} > OPT
/* CubeSuite always starts at 0xd8. */
.csstart : {
*(.csstart)
} > ROM
/* For code that must be in the first 64k, or could fill unused
space below .rodata. */
.lowtext : {
*(.plt)
*(.lowtext)
} > ROM
.data : {
. = ALIGN(2);
PROVIDE (__datastart = .);
KEEP (*(.jcr))
*(.data.rel.ro.local) *(.data.rel.ro*)
*(.dynamic)
*(.data D .data.* .gnu.linkonce.d.*)
KEEP (*(.gnu.linkonce.d.*personality*))
SORT(CONSTRUCTORS)
*(.data1)
*(.got.plt) *(.got)
/* We want the small data sections together, so single-instruction offsets
can access them all, and initialized data all before uninitialized, so
we can shorten the on-disk segment size. */
. = ALIGN(2);
*(.sdata .sdata.* .gnu.linkonce.s.* D_2 D_1)
. = ALIGN(2);
_edata = .;
PROVIDE (edata = .);
PROVIDE (__dataend = .);
} > RAM AT> ROM
/* Note that crt0 assumes this is a multiple of two; all the
start/stop symbols are also assumed word-aligned. */
PROVIDE(__romdatastart = LOADADDR(.data));
PROVIDE (__romdatacopysize = SIZEOF(.data));
.bss : {
. = ALIGN(2);
PROVIDE (__bssstart = .);
*(.dynbss)
*(.sbss .sbss.*)
*(.bss B B_2 B_1 .bss.* .gnu.linkonce.b.*)
. = ALIGN(2);
*(COMMON)
. = ALIGN(2);
PROVIDE (__bssend = .);
_end = .;
PROVIDE (end = .);
} > RAM
PROVIDE (__bsssize = SIZEOF(.bss));
.stack (ORIGIN (STACK)) :
{
PROVIDE (__stack = .);
*(.stack)
}
.rodata (MAX(__romdatastart + __romdatacopysize, 0x1000)) : {
. = ALIGN(2);
*(.plt)
*(.rodata C C_2 C_1 .rodata.* .gnu.linkonce.r.*)
*(.rodata1)
*(.eh_frame_hdr)
KEEP (*(.eh_frame))
KEEP (*(.gcc_except_table)) *(.gcc_except_table.*)
PROVIDE (__preinit_array_start = .);
KEEP (*(.preinit_array))
PROVIDE (__preinit_array_end = .);
PROVIDE (__init_array_start = .);
KEEP (*(SORT(.init_array.*)))
KEEP (*(.init_array))
PROVIDE (__init_array_end = .);
PROVIDE (__fini_array_start = .);
KEEP (*(.fini_array))
KEEP (*(SORT(.fini_array.*)))
PROVIDE (__fini_array_end = .);
LONG(0); /* Sentinel. */
/* gcc uses crtbegin.o to find the start of the constructors, so
we make sure it is first. Because this is a wildcard, it
doesn't matter if the user does not actually link against
crtbegin.o; the linker won't look for a file to match a
wildcard. The wildcard also means that it doesn't matter which
directory crtbegin.o is in. */
KEEP (*crtbegin*.o(.ctors))
/* We don't want to include the .ctor section from from the
crtend.o file until after the sorted ctors. The .ctor section
from the crtend file contains the end of ctors marker and it
must be last */
KEEP (*(EXCLUDE_FILE (*crtend*.o ) .ctors))
KEEP (*(SORT(.ctors.*)))
KEEP (*(.ctors))
KEEP (*crtbegin*.o(.dtors))
KEEP (*(EXCLUDE_FILE (*crtend*.o ) .dtors))
KEEP (*(SORT(.dtors.*)))
KEEP (*(.dtors))
} > ROM
.text :
{
PROVIDE (_start = .);
*(.text P .stub .text.* .gnu.linkonce.t.*)
KEEP (*(.text.*personality*))
/* .gnu.warning sections are handled specially by elf32.em. */
*(.gnu.warning)
*(.interp .hash .dynsym .dynstr .gnu.version*)
PROVIDE (__etext = .);
PROVIDE (_etext = .);
PROVIDE (etext = .);
. = ALIGN(2);
KEEP (*(.init))
KEEP (*(.fini))
} > ROM
/* The rest are all not normally part of the runtime image. */
/* 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) }
/DISCARD/ : { *(.note.GNU-stack) }
}

84
rl78-sys.h Normal file
View file

@ -0,0 +1,84 @@
/*
Copyright (c) 2011 Red Hat Incorporated.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
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.
The name of Red Hat Incorporated may not be used to endorse
or promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 RED HAT INCORPORATED 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"
r8 = 0xffef0
r9 = 0xffef1
r10 = 0xffef2
r11 = 0xffef3
r12 = 0xffef4
r13 = 0xffef5
r14 = 0xffef6
r15 = 0xffef7
r16 = 0xffee8
r17 = 0xffee9
r18 = 0xffeea
r19 = 0xffeeb
r20 = 0xffeec
r21 = 0xffeed
r22 = 0xffeee
r23 = 0xffeef
#define SYS__exit SYS_exit
.macro syscall_body number
/* The RL78 doesn't really have an "interrupt" upcode, just
BRK, which we emulate exactly. We use the STOP opcode,
which is a breakpoint in the simulator. */
mov A, #\number
stop
ret
.endm
.macro do_syscall name number
__\name:
.global __\name
_\name:
.weak _\name
syscall_body \number
.endm
.macro syscall_returns name number
__\name:
.global __\name
_\name:
.weak _\name
mov r8, #\number
ret
.endm
#define S(name) do_syscall name, SYS_##name
#define SYSCALL(number) syscall_body number
#define ERR(name) syscall_returns name, -1
#define OK(name) syscall_returns name, 0
#define RET(name,val) syscall_returns name, val

224
rl78.ld Normal file
View file

@ -0,0 +1,224 @@
/*
Copyright (c) 2005,2008,2009,2011 Red Hat Incorporated.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
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.
The name of Red Hat Incorporated may not be used to endorse
or promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 RED HAT INCORPORATED 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.
*/
/* Default linker script, for normal executables */
OUTPUT_ARCH(rl78)
ENTRY(_start)
/* Do we need any of these for elf?
__DYNAMIC = 0; */
/* This is for an RL78/G13, 64k flash, 4k ram */
MEMORY {
VEC (r) : ORIGIN = 0x00000, LENGTH = 0x00002
IVEC (r) : ORIGIN = 0x00004, LENGTH = 0x0007c
OPT (r) : ORIGIN = 0x000c0, LENGTH = 0x00004
ROM (r) : ORIGIN = 0x000d8, LENGTH = 0x0ff28
RAM (w) : ORIGIN = 0xfef00, LENGTH = 0x00fe0
STACK (w) : ORIGIN = 0xffee0, LENGTH = 0x00002
}
SECTIONS
{
.vec :
{
*(.vec)
} > VEC
.ivec :
{
*(.ivec)
} > IVEC
.opt :
{
*(.opt)
} > OPT
/* CubeSuite always starts at 0xd8. */
.csstart : {
*(.csstart)
} > ROM
/* For code that must be in the first 64k, or could fill unused
space below .rodata. */
.lowtext : {
*(.plt)
*(.lowtext)
} > ROM
.data : {
. = ALIGN(2);
PROVIDE (__datastart = .);
KEEP (*(.jcr))
*(.data.rel.ro.local) *(.data.rel.ro*)
*(.dynamic)
*(.data D .data.* .gnu.linkonce.d.*)
KEEP (*(.gnu.linkonce.d.*personality*))
SORT(CONSTRUCTORS)
*(.data1)
*(.got.plt) *(.got)
/* We want the small data sections together, so single-instruction offsets
can access them all, and initialized data all before uninitialized, so
we can shorten the on-disk segment size. */
. = ALIGN(2);
*(.sdata .sdata.* .gnu.linkonce.s.* D_2 D_1)
. = ALIGN(2);
_edata = .;
PROVIDE (edata = .);
PROVIDE (__dataend = .);
} > RAM AT> ROM
/* Note that crt0 assumes this is a multiple of two; all the
start/stop symbols are also assumed word-aligned. */
PROVIDE(__romdatastart = LOADADDR(.data));
PROVIDE (__romdatacopysize = SIZEOF(.data));
.bss : {
. = ALIGN(2);
PROVIDE (__bssstart = .);
*(.dynbss)
*(.sbss .sbss.*)
*(.bss B B_2 B_1 .bss.* .gnu.linkonce.b.*)
. = ALIGN(2);
*(COMMON)
. = ALIGN(2);
PROVIDE (__bssend = .);
_end = .;
PROVIDE (end = .);
} > RAM
PROVIDE (__bsssize = SIZEOF(.bss));
.stack (ORIGIN (STACK)) :
{
PROVIDE (__stack = .);
*(.stack)
}
.rodata (MAX(__romdatastart + __romdatacopysize, 0x2000)) : {
. = ALIGN(2);
*(.plt)
*(.rodata C C_2 C_1 .rodata.* .gnu.linkonce.r.*)
*(.rodata1)
*(.eh_frame_hdr)
KEEP (*(.eh_frame))
KEEP (*(.gcc_except_table)) *(.gcc_except_table.*)
PROVIDE (__preinit_array_start = .);
KEEP (*(.preinit_array))
PROVIDE (__preinit_array_end = .);
PROVIDE (__init_array_start = .);
KEEP (*(SORT(.init_array.*)))
KEEP (*(.init_array))
PROVIDE (__init_array_end = .);
PROVIDE (__fini_array_start = .);
KEEP (*(.fini_array))
KEEP (*(SORT(.fini_array.*)))
PROVIDE (__fini_array_end = .);
LONG(0); /* Sentinel. */
/* gcc uses crtbegin.o to find the start of the constructors, so
we make sure it is first. Because this is a wildcard, it
doesn't matter if the user does not actually link against
crtbegin.o; the linker won't look for a file to match a
wildcard. The wildcard also means that it doesn't matter which
directory crtbegin.o is in. */
KEEP (*crtbegin*.o(.ctors))
/* We don't want to include the .ctor section from from the
crtend.o file until after the sorted ctors. The .ctor section
from the crtend file contains the end of ctors marker and it
must be last */
KEEP (*(EXCLUDE_FILE (*crtend*.o ) .ctors))
KEEP (*(SORT(.ctors.*)))
KEEP (*(.ctors))
KEEP (*crtbegin*.o(.dtors))
KEEP (*(EXCLUDE_FILE (*crtend*.o ) .dtors))
KEEP (*(SORT(.dtors.*)))
KEEP (*(.dtors))
} > ROM
.text :
{
PROVIDE (_start = .);
*(.text P .stub .text.* .gnu.linkonce.t.*)
KEEP (*(.text.*personality*))
/* .gnu.warning sections are handled specially by elf32.em. */
*(.gnu.warning)
*(.interp .hash .dynsym .dynstr .gnu.version*)
PROVIDE (__etext = .);
PROVIDE (_etext = .);
PROVIDE (etext = .);
. = ALIGN(2);
KEEP (*(.init))
KEEP (*(.fini))
} > ROM
/* The rest are all not normally part of the runtime image. */
/* 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) }
/DISCARD/ : { *(.note.GNU-stack) }
}

57
sbrk.c Normal file
View file

@ -0,0 +1,57 @@
/*
Copyright (c) 2005, 2009 Red Hat Incorporated.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
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.
The name of Red Hat Incorporated may not be used to endorse
or promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 RED HAT INCORPORATED 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 <errno.h>
char *
_sbrk (int adj)
{
extern char end;
static char * heap = & end;
char * rv = heap;
char * heaptop = (char *) &adj;
heap += adj;
/* The allocated chunk spans our stack? */
if (rv < heaptop && heap > heaptop
/* The allocated chunk spans our address space? */
|| heap < rv)
{
errno = ENOMEM;
return (char *) -1;
}
return rv;
}
char * sbrk (int) __attribute__((weak, alias ("_sbrk")));

35
stat.S Normal file
View file

@ -0,0 +1,35 @@
/*
Copyright (c) 2011 Red Hat Incorporated.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
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.
The name of Red Hat Incorporated may not be used to endorse
or promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 RED HAT INCORPORATED 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 "rl78-sys.h"
ERR(stat)

35
time.S Normal file
View file

@ -0,0 +1,35 @@
/*
Copyright (c) 2011 Red Hat Incorporated.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
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.
The name of Red Hat Incorporated may not be used to endorse
or promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 RED HAT INCORPORATED 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 "rl78-sys.h"
ERR(time)

35
times.S Normal file
View file

@ -0,0 +1,35 @@
/*
Copyright (c) 2011 Red Hat Incorporated.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
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.
The name of Red Hat Incorporated may not be used to endorse
or promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 RED HAT INCORPORATED 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 "rl78-sys.h"
ERR(times)

35
unlink.S Normal file
View file

@ -0,0 +1,35 @@
/*
Copyright (c) 2011 Red Hat Incorporated.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
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.
The name of Red Hat Incorporated may not be used to endorse
or promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 RED HAT INCORPORATED 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 "rl78-sys.h"
ERR(unlink)

35
utime.S Normal file
View file

@ -0,0 +1,35 @@
/*
Copyright (c) 2011 Red Hat Incorporated.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
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.
The name of Red Hat Incorporated may not be used to endorse
or promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 RED HAT INCORPORATED 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 "rl78-sys.h"
ERR(utime)

107
write.c Normal file
View file

@ -0,0 +1,107 @@
/*
Copyright (c) 2010 Red Hat Incorporated.
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
Redistributions of source code must retain the above copyright
notice, this list of conditions and the following disclaimer.
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.
The name of Red Hat Incorporated may not be used to endorse
or promote products derived from this software without specific
prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS 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 RED HAT INCORPORATED 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.
*/
/* These definitions are for the RL78/G13, which the simulator
simulates. */
typedef unsigned char UQI __attribute__((mode(QI)));
typedef unsigned int UHI __attribute__((mode(HI)));
#define s8(x) (*(volatile UQI *)(x))
#define s16(x) (*(volatile UHI *)(x))
#define P(x) s8(0xfff00+(x))
#define PM(x) s8(0xfff20+(x))
#define PER0 s8(0xf00f0)
#define SSR00 s16(0xf0100)
#define SMR00 s16(0xf0110)
#define SCR00 s16(0xf0118)
#define SS0 s16(0xf0122)
#define SPS0 s16(0xf0126)
#define SO0 s16(0xf0128)
#define SOE0 s16(0xf012a)
#define SOL0 s16(0xf0134)
#define SDR00 s16(0xfff10)
static int initted = 0;
static void
init_uart0 ()
{
initted = 1;
PER0 = 0xff;
SPS0 = 0x0011; /* 16 MHz */
SMR00 = 0x0022; /* uart mode */
SCR00 = 0x8097; /* 8-N-1 */
SDR00 = 0x8a00; /* baud in MSB - 115200 */
SOL0 = 0x0000; /* not inverted */
SO0 = 0x000f; /* initial value */
SOE0 = 0x0001; /* enable TxD0 */
P(1) |= 0b00000100;
PM(1) &= 0b11111011;
SS0 = 0x0001;
}
static void
tputc (char c)
{
/* Wait for transmit buffer to be empty. */
while (SSR00 & 0x0020)
asm("");
/* Transmit that byte. */
SDR00 = c;
}
int
_write(int fd, char *ptr, int len)
{
int rv = len;
if (!initted)
init_uart0 ();
while (len != 0)
{
if (*ptr == '\n')
tputc ('\r');
tputc (*ptr);
ptr ++;
len --;
}
return rv;
}
char * write (int) __attribute__((weak, alias ("_write")));