2010-10-08 Bernd Schmidt <bernds@codesourcery.com>
Joseph Myers <joseph@codesourcery.com>
* configure.in: Handle tic6x targets.
* configure: Regenerate.
* tic6x/Makefile.in, tic6x/configure.in, tic6x/crt0.S,
tic6x/getpid.c, tic6x/kill.c, tic6x/sbrk.c, tic6x/syscalls.c: New.
* tic6x/configure: New (generated).
This commit is contained in:
Jeff Johnston
parent
cab874029f
commit
4606798ea0
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@ -1,3 +1,12 @@
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2010-10-08 Bernd Schmidt <bernds@codesourcery.com>
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Joseph Myers <joseph@codesourcery.com>
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* configure.in: Handle tic6x targets.
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* configure: Regenerate.
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* tic6x/Makefile.in, tic6x/configure.in, tic6x/crt0.S,
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tic6x/getpid.c, tic6x/kill.c, tic6x/sbrk.c, tic6x/syscalls.c: New.
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* tic6x/configure: New (generated).
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2010-10-02 Anthony Green <green@moxielogic.com>
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* moxie/Makefile.in (QEMU_OBJS): Add missing object files to the
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@ -732,6 +732,7 @@ m32c
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rx
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arm
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spu
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tic6x
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iq2000
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libnosys'
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@ -2561,6 +2562,11 @@ case "${target}" in
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config_testsuite=false
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config_libnosys=false
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;;
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tic6x-*-*)
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subdirs="$subdirs tic6x"
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config_testsuite=false
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;;
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iq2000-*-*)
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subdirs="$subdirs iq2000"
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@ -129,6 +129,10 @@ case "${target}" in
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config_testsuite=false
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config_libnosys=false
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;;
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tic6x-*-*)
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AC_CONFIG_SUBDIRS(tic6x)
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config_testsuite=false
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;;
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iq2000-*-*)
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AC_CONFIG_SUBDIRS([iq2000])
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;;
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@ -0,0 +1,126 @@
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#
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#
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DESTDIR =
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VPATH = @srcdir@ @srcdir@/..
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srcdir = @srcdir@
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objdir = .
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srcroot = $(srcdir)/../..
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objroot = $(objdir)/../..
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prefix = @prefix@
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exec_prefix = @exec_prefix@
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host_alias = @host_alias@
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target_alias = @target_alias@
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bindir = @bindir@
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libdir = @libdir@
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tooldir = $(exec_prefix)/$(target_alias)
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INSTALL = @INSTALL@
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INSTALL_PROGRAM = @INSTALL_PROGRAM@
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INSTALL_DATA = @INSTALL_DATA@
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# Multilib support variables.
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# TOP is used instead of MULTI{BUILD,SRC}TOP.
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MULTIDIRS =
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MULTISUBDIR =
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SHELL = /bin/sh
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CC = @CC@
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||||
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AS = @AS@
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AR = @AR@
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LD = @LD@
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RANLIB = @RANLIB@
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OBJDUMP = `if [ -f ${objroot}/../binutils/objdump ] ; \
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then echo ${objroot}/../binutils/objdump ; \
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else t='$(program_transform_name)'; echo objdump | sed -e $$t ; fi`
|
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OBJCOPY = `if [ -f ${objroot}/../binutils/objcopy ] ; \
|
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then echo ${objroot}/../binutils/objcopy ; \
|
||||
else t='$(program_transform_name)'; echo objcopy | sed -e $$t ; fi`
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||||
|
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CFLAGS = -g
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||||
SCRIPTS =
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||||
# Here is all of the simulator stuff
|
||||
SIM_SCRIPTS =
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SIM_LDFLAGS =
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SIM_BSP = libsim.a
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SIM_CRT0 = crt0.o
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SIM_OBJS = sbrk.o putnum.o getpid.o kill.o syscalls.o
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SIM_TEST = sim-test
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SIM_INSTALL = install-sim
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# Host specific makefile fragment comes in here.
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@host_makefile_frag@
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#
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# build a test program for each target board. Just trying to get
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# it to link is a good test, so we ignore all the errors for now.
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#
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all: ${SIM_CRT0} ${SIM_BSP}
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#
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# here's where we build the board support packages for each target
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#
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${SIM_BSP}: ${OBJS} ${SIM_OBJS}
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${AR} ${ARFLAGS} ${SIM_BSP} ${SIM_OBJS} ${OBJS}
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${RANLIB} ${SIM_BSP}
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#
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# here's where we build the test programs for each target
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#
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.PHONY: test
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test: ${SIM_TEST}
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sim-test: sim-test.x sim-test.dis
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sim-test.x: test.o ${SIM_CRT0} ${SIM_BSP}
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${CC} ${LDFLAGS_FOR_TARGET} -L${objdir} \
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${SIM_CRT0} test.o \
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-o sim-test.x ${LIBS_FOR_TARGET} -lc ${SIM_BSP}
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sim-test.dis: sim-test.x
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${OBJDUMP} -d sim-test.x > sim-test.dis
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#
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#
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#
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.c.S:
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${CC} ${CFLAGS_FOR_TARGET} -c $<
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clean mostlyclean:
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rm -f a.out core *.i *.o *-test *.srec *.dis *.x $(SIM_BSP)
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distclean maintainer-clean realclean: clean
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rm -f Makefile config.status *~
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.PHONY: install info install-info clean-info
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install: ${SIM_INSTALL}
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install-sim:
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set -e;\
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for x in ${SIM_CRT0} ${SIM_BSP}; do\
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${INSTALL_DATA} $$x $(DESTDIR)${tooldir}/lib${MULTISUBDIR}/$$x;\
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done
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for x in ${SIM_SCRIPTS}; do\
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${INSTALL_DATA} ${srcdir}/$${x} $(DESTDIR)${tooldir}/lib${MULTISUBDIR}/$$x; \
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done
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doc:
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info:
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install-info:
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clean-info:
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||||
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Makefile: Makefile.in config.status @host_makefile_frag_path@
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$(SHELL) config.status
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config.status: configure
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$(SHELL) config.status --recheck
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@ -0,0 +1,404 @@
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|||
# generated automatically by aclocal 1.11.1 -*- Autoconf -*-
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||||
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|
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# 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
|
||||
# This file is free software; the Free Software Foundation
|
||||
# gives unlimited permission to copy and/or distribute it,
|
||||
# with or without modifications, as long as this notice is preserved.
|
||||
|
||||
# This program is distributed in the hope that it will be useful,
|
||||
# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
|
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# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
|
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|
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# AM_CONDITIONAL -*- Autoconf -*-
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# Copyright (C) 1997, 2000, 2001, 2003, 2004, 2005, 2006, 2008
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|
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# This file is free software; the Free Software Foundation
|
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# gives unlimited permission to copy and/or distribute it,
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|
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# serial 9
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|
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|
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|
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# Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2009
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# Free Software Foundation, Inc.
|
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|
||||
# This file is free software; the Free Software Foundation
|
||||
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|
||||
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|
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|
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|
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|
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|
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|
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|
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# side effect of compilation, but ICC will put the dependencies in
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|
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|
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|
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|
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||||
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|
||||
# gives unlimited permission to copy and/or distribute it,
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||||
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|
||||
# Grep'ing the whole file is not good either: AIX grep has a line
|
||||
# limit of 2048, but all sed's we know have understand at least 4000.
|
||||
if sed -n 's,^#.*generated by automake.*,X,p' "$mf" | grep X >/dev/null 2>&1; then
|
||||
dirpart=`AS_DIRNAME("$mf")`
|
||||
else
|
||||
continue
|
||||
fi
|
||||
# Extract the definition of DEPDIR, am__include, and am__quote
|
||||
# from the Makefile without running `make'.
|
||||
DEPDIR=`sed -n 's/^DEPDIR = //p' < "$mf"`
|
||||
test -z "$DEPDIR" && continue
|
||||
am__include=`sed -n 's/^am__include = //p' < "$mf"`
|
||||
test -z "am__include" && continue
|
||||
am__quote=`sed -n 's/^am__quote = //p' < "$mf"`
|
||||
# When using ansi2knr, U may be empty or an underscore; expand it
|
||||
U=`sed -n 's/^U = //p' < "$mf"`
|
||||
# Find all dependency output files, they are included files with
|
||||
# $(DEPDIR) in their names. We invoke sed twice because it is the
|
||||
# simplest approach to changing $(DEPDIR) to its actual value in the
|
||||
# expansion.
|
||||
for file in `sed -n "
|
||||
s/^$am__include $am__quote\(.*(DEPDIR).*\)$am__quote"'$/\1/p' <"$mf" | \
|
||||
sed -e 's/\$(DEPDIR)/'"$DEPDIR"'/g' -e 's/\$U/'"$U"'/g'`; do
|
||||
# Make sure the directory exists.
|
||||
test -f "$dirpart/$file" && continue
|
||||
fdir=`AS_DIRNAME(["$file"])`
|
||||
AS_MKDIR_P([$dirpart/$fdir])
|
||||
# echo "creating $dirpart/$file"
|
||||
echo '# dummy' > "$dirpart/$file"
|
||||
done
|
||||
done
|
||||
}
|
||||
])# _AM_OUTPUT_DEPENDENCY_COMMANDS
|
||||
|
||||
|
||||
# AM_OUTPUT_DEPENDENCY_COMMANDS
|
||||
# -----------------------------
|
||||
# This macro should only be invoked once -- use via AC_REQUIRE.
|
||||
#
|
||||
# This code is only required when automatic dependency tracking
|
||||
# is enabled. FIXME. This creates each `.P' file that we will
|
||||
# need in order to bootstrap the dependency handling code.
|
||||
AC_DEFUN([AM_OUTPUT_DEPENDENCY_COMMANDS],
|
||||
[AC_CONFIG_COMMANDS([depfiles],
|
||||
[test x"$AMDEP_TRUE" != x"" || _AM_OUTPUT_DEPENDENCY_COMMANDS],
|
||||
[AMDEP_TRUE="$AMDEP_TRUE" ac_aux_dir="$ac_aux_dir"])
|
||||
])
|
||||
|
||||
# Copyright (C) 2003, 2005 Free Software Foundation, Inc.
|
||||
#
|
||||
# This file is free software; the Free Software Foundation
|
||||
# gives unlimited permission to copy and/or distribute it,
|
||||
# with or without modifications, as long as this notice is preserved.
|
||||
|
||||
# serial 2
|
||||
|
||||
# Check whether the underlying file-system supports filenames
|
||||
# with a leading dot. For instance MS-DOS doesn't.
|
||||
AC_DEFUN([AM_SET_LEADING_DOT],
|
||||
[rm -rf .tst 2>/dev/null
|
||||
mkdir .tst 2>/dev/null
|
||||
if test -d .tst; then
|
||||
am__leading_dot=.
|
||||
else
|
||||
am__leading_dot=_
|
||||
fi
|
||||
rmdir .tst 2>/dev/null
|
||||
AC_SUBST([am__leading_dot])])
|
||||
|
||||
# Check to see how 'make' treats includes. -*- Autoconf -*-
|
||||
|
||||
# Copyright (C) 2001, 2002, 2003, 2005, 2009 Free Software Foundation, Inc.
|
||||
#
|
||||
# This file is free software; the Free Software Foundation
|
||||
# gives unlimited permission to copy and/or distribute it,
|
||||
# with or without modifications, as long as this notice is preserved.
|
||||
|
||||
# serial 4
|
||||
|
||||
# AM_MAKE_INCLUDE()
|
||||
# -----------------
|
||||
# Check to see how make treats includes.
|
||||
AC_DEFUN([AM_MAKE_INCLUDE],
|
||||
[am_make=${MAKE-make}
|
||||
cat > confinc << 'END'
|
||||
am__doit:
|
||||
@echo this is the am__doit target
|
||||
.PHONY: am__doit
|
||||
END
|
||||
# If we don't find an include directive, just comment out the code.
|
||||
AC_MSG_CHECKING([for style of include used by $am_make])
|
||||
am__include="#"
|
||||
am__quote=
|
||||
_am_result=none
|
||||
# First try GNU make style include.
|
||||
echo "include confinc" > confmf
|
||||
# Ignore all kinds of additional output from `make'.
|
||||
case `$am_make -s -f confmf 2> /dev/null` in #(
|
||||
*the\ am__doit\ target*)
|
||||
am__include=include
|
||||
am__quote=
|
||||
_am_result=GNU
|
||||
;;
|
||||
esac
|
||||
# Now try BSD make style include.
|
||||
if test "$am__include" = "#"; then
|
||||
echo '.include "confinc"' > confmf
|
||||
case `$am_make -s -f confmf 2> /dev/null` in #(
|
||||
*the\ am__doit\ target*)
|
||||
am__include=.include
|
||||
am__quote="\""
|
||||
_am_result=BSD
|
||||
;;
|
||||
esac
|
||||
fi
|
||||
AC_SUBST([am__include])
|
||||
AC_SUBST([am__quote])
|
||||
AC_MSG_RESULT([$_am_result])
|
||||
rm -f confinc confmf
|
||||
])
|
||||
|
||||
# Copyright (C) 2006, 2008 Free Software Foundation, Inc.
|
||||
#
|
||||
# This file is free software; the Free Software Foundation
|
||||
# gives unlimited permission to copy and/or distribute it,
|
||||
# with or without modifications, as long as this notice is preserved.
|
||||
|
||||
# serial 2
|
||||
|
||||
# _AM_SUBST_NOTMAKE(VARIABLE)
|
||||
# ---------------------------
|
||||
# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
|
||||
# This macro is traced by Automake.
|
||||
AC_DEFUN([_AM_SUBST_NOTMAKE])
|
||||
|
||||
# AM_SUBST_NOTMAKE(VARIABLE)
|
||||
# ---------------------------
|
||||
# Public sister of _AM_SUBST_NOTMAKE.
|
||||
AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
|
||||
|
||||
m4_include([../acinclude.m4])
|
||||
File diff suppressed because it is too large
Load Diff
|
|
@ -0,0 +1,54 @@
|
|||
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
|
||||
|
|
@ -0,0 +1,63 @@
|
|||
/* crt0.S for the TI C6X series of processors
|
||||
|
||||
Copyright (c) 2010 CodeSourcery, Inc.
|
||||
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.
|
||||
* Neither the name of CodeSourcery 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 CODESOURCERY, INC. ``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 CODESOURCERY 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. */
|
||||
|
||||
.text
|
||||
.align 2
|
||||
|
||||
.global _start
|
||||
_start:
|
||||
/* Start by setting up a stack */
|
||||
mvkl .s2 _STACK_START - 4, B15
|
||||
mvkh .s2 _STACK_START - 4, B15
|
||||
and .s2 -8, B15, B15
|
||||
|
||||
mvkl .s2 __c6xabi_DSBT_BASE, B14
|
||||
mvkh .s2 __c6xabi_DSBT_BASE, B14
|
||||
|
||||
#ifdef __DSBT__
|
||||
stw .d2t2 B14, *B14
|
||||
#endif
|
||||
/* Zero the memory in the .bss section. */
|
||||
|
||||
/* Set up GOT pointer. */
|
||||
|
||||
mvkl .s2 1f, B3
|
||||
mvkh .s2 1f, B3
|
||||
call .s2 _init
|
||||
nop 5
|
||||
1:
|
||||
|
||||
mvkl .s2 1f, B3
|
||||
mvkh .s2 1f, B3
|
||||
call .s2 main
|
||||
nop 5
|
||||
1:
|
||||
|
||||
b .s2 exit
|
||||
nop 5
|
||||
|
|
@ -0,0 +1,26 @@
|
|||
/* getpid.c -- get the current process id.
|
||||
*
|
||||
* Copyright (c) 1995 Cygnus Support
|
||||
*
|
||||
* The authors hereby grant permission to use, copy, modify, distribute,
|
||||
* and license this software and its documentation for any purpose, provided
|
||||
* that existing copyright notices are retained in all copies and that this
|
||||
* notice is included verbatim in any distributions. No written agreement,
|
||||
* license, or royalty fee is required for any of the authorized uses.
|
||||
* Modifications to this software may be copyrighted by their authors
|
||||
* and need not follow the licensing terms described here, provided that
|
||||
* the new terms are clearly indicated on the first page of each file where
|
||||
* they apply.
|
||||
*/
|
||||
#include <_ansi.h>
|
||||
#define __MYPID 1
|
||||
|
||||
/*
|
||||
* getpid -- only one process, so just return 1.
|
||||
*/
|
||||
int
|
||||
_DEFUN (getpid, (),
|
||||
)
|
||||
{
|
||||
return __MYPID;
|
||||
}
|
||||
|
|
@ -0,0 +1,29 @@
|
|||
/* kill.c -- remove a process.
|
||||
*
|
||||
* Copyright (c) 1995 Cygnus Support
|
||||
*
|
||||
* The authors hereby grant permission to use, copy, modify, distribute,
|
||||
* and license this software and its documentation for any purpose, provided
|
||||
* that existing copyright notices are retained in all copies and that this
|
||||
* notice is included verbatim in any distributions. No written agreement,
|
||||
* license, or royalty fee is required for any of the authorized uses.
|
||||
* Modifications to this software may be copyrighted by their authors
|
||||
* and need not follow the licensing terms described here, provided that
|
||||
* the new terms are clearly indicated on the first page of each file where
|
||||
* they apply.
|
||||
*/
|
||||
#include <_ansi.h>
|
||||
#define __MYPID 1
|
||||
|
||||
/*
|
||||
* kill -- go out via exit...
|
||||
*/
|
||||
int
|
||||
_DEFUN (kill, (pid, sig),
|
||||
int pid _AND
|
||||
int sig)
|
||||
{
|
||||
if(pid == __MYPID)
|
||||
_exit(sig);
|
||||
return 0;
|
||||
}
|
||||
|
|
@ -0,0 +1,59 @@
|
|||
/* sbrk.c -- Implementation of the low-level sbrk() routine
|
||||
*
|
||||
* Copyright (c) 2004 National Semiconductor Corporation
|
||||
*
|
||||
* The authors hereby grant permission to use, copy, modify, distribute,
|
||||
* and license this software and its documentation for any purpose, provided
|
||||
* that existing copyright notices are retained in all copies and that this
|
||||
* notice is included verbatim in any distributions. No written agreement,
|
||||
* license, or royalty fee is required for any of the authorized uses.
|
||||
* Modifications to this software may be copyrighted by their authors
|
||||
* and need not follow the licensing terms described here, provided that
|
||||
* the new terms are clearly indicated on the first page of each file where
|
||||
* they apply.
|
||||
*/
|
||||
|
||||
#include <errno.h>
|
||||
#include <stddef.h> /* where ptrdiff_t is defined */
|
||||
#include <stdlib.h>
|
||||
|
||||
/* Start of the heap. */
|
||||
extern const char _HEAP_START __attribute__((section(".heap")));
|
||||
/* End of the heap (maximum value of heap_ptr). */
|
||||
extern const char _HEAP_MAX __attribute__((section(".heap")));
|
||||
|
||||
/* Extend heap space by size bytes.
|
||||
Return start of new space allocated, or -1 for errors
|
||||
Error cases:
|
||||
1. Allocation is not within heap range */
|
||||
|
||||
void * sbrk (ptrdiff_t size)
|
||||
{
|
||||
/*
|
||||
* The following two memory locations should be defined in the linker script file
|
||||
*/
|
||||
|
||||
static const char * heap_ptr; /* pointer to head of heap */
|
||||
const char * old_heap_ptr;
|
||||
static unsigned char init_sbrk = 0;
|
||||
|
||||
/* heap_ptr is initialized to HEAP_START */
|
||||
if (init_sbrk == 0)
|
||||
{
|
||||
heap_ptr = &_HEAP_START;
|
||||
init_sbrk = 1;
|
||||
}
|
||||
|
||||
old_heap_ptr = heap_ptr;
|
||||
|
||||
if ((heap_ptr + size) > &_HEAP_MAX)
|
||||
{
|
||||
/* top of heap is bigger than _HEAP_MAX */
|
||||
errno = ENOMEM;
|
||||
return (void *) -1;
|
||||
}
|
||||
|
||||
/* success: update heap_ptr and return previous value */
|
||||
heap_ptr += size;
|
||||
return (void *)old_heap_ptr;
|
||||
}
|
||||
|
|
@ -0,0 +1,361 @@
|
|||
/* Copyright (c) 2010 CodeSourcery, Inc.
|
||||
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.
|
||||
* Neither the name of CodeSourcery 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 CODESOURCERY, INC. ``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 CODESOURCERY 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 <stdio.h>
|
||||
#include <string.h>
|
||||
#include <time.h>
|
||||
#include <sys/time.h>
|
||||
#include <sys/stat.h>
|
||||
#include <errno.h>
|
||||
|
||||
#define _DTOPEN 0xf0
|
||||
#define _DTCLOSE 0xf1
|
||||
#define _DTREAD 0xf2
|
||||
#define _DTWRITE 0xf3
|
||||
#define _DTLSEEK 0xf4
|
||||
#define _DTUNLINK 0xf5
|
||||
#define _DTGETENV 0xf6
|
||||
#define _DTRENAME 0xf7
|
||||
#define _DTGETTIME 0xf8
|
||||
#define _DTGETCLK 0xf9
|
||||
#define _DTSYNC 0xff
|
||||
|
||||
#define CIOBUFSIZ (BUFSIZ + 32)
|
||||
|
||||
struct __attribute__((packed)) cio_open_to_host
|
||||
{
|
||||
/* Suggested file descriptor (little endian). */
|
||||
short fd;
|
||||
/* Flags (little endian). */
|
||||
short flags;
|
||||
};
|
||||
|
||||
struct __attribute__((packed)) cio_open_from_host
|
||||
{
|
||||
/* File descriptor (little endian). */
|
||||
short fd;
|
||||
};
|
||||
|
||||
struct __attribute__((packed)) cio_close_to_host
|
||||
{
|
||||
/* File descriptor (little endian). */
|
||||
short fd;
|
||||
};
|
||||
|
||||
struct __attribute__((packed)) cio_close_from_host
|
||||
{
|
||||
/* Result (little endian). */
|
||||
short result;
|
||||
};
|
||||
|
||||
struct __attribute__((packed)) cio_read_to_host
|
||||
{
|
||||
/* File descriptor (little endian). */
|
||||
short fd;
|
||||
/* Length (little endian). */
|
||||
short length;
|
||||
};
|
||||
|
||||
struct __attribute__((packed)) cio_read_from_host
|
||||
{
|
||||
/* Result (little endian). */
|
||||
short result;
|
||||
};
|
||||
|
||||
struct __attribute__((packed)) cio_write_to_host
|
||||
{
|
||||
/* File descriptor (little endian). */
|
||||
short fd;
|
||||
/* Length (little endian). */
|
||||
short length;
|
||||
};
|
||||
|
||||
struct __attribute__((packed)) cio_write_from_host
|
||||
{
|
||||
/* Result (little endian). */
|
||||
short result;
|
||||
};
|
||||
|
||||
struct __attribute__((packed)) cio_lseek_to_host
|
||||
{
|
||||
/* File descriptor (little endian). */
|
||||
short fd;
|
||||
/* Offset (little endian). */
|
||||
int offset;
|
||||
/* Whence (little endian). */
|
||||
short whence;
|
||||
};
|
||||
|
||||
struct __attribute__((packed)) cio_lseek_from_host
|
||||
{
|
||||
/* Result (little endian). */
|
||||
int result;
|
||||
};
|
||||
|
||||
struct __attribute__((packed)) cio_unlink_to_host
|
||||
{
|
||||
/* Empty. */
|
||||
};
|
||||
|
||||
struct __attribute__((packed)) cio_unlink_from_host
|
||||
{
|
||||
/* Result (little endian). */
|
||||
short result;
|
||||
};
|
||||
|
||||
struct __attribute__((packed)) cio_rename_to_host
|
||||
{
|
||||
/* Empty. */
|
||||
};
|
||||
|
||||
struct __attribute__((packed)) cio_rename_from_host
|
||||
{
|
||||
/* Result (little endian). */
|
||||
short result;
|
||||
};
|
||||
|
||||
struct __attribute__((packed)) cio_gettime_to_host
|
||||
{
|
||||
/* Empty. */
|
||||
};
|
||||
|
||||
struct __attribute__((packed)) cio_gettime_from_host
|
||||
{
|
||||
/* Time (little endian). */
|
||||
int time;
|
||||
};
|
||||
|
||||
struct __attribute__((packed)) cio_to_host
|
||||
{
|
||||
/* Data length (target endian). */
|
||||
unsigned int length;
|
||||
/* Command. */
|
||||
unsigned char command;
|
||||
/* Parameters. */
|
||||
union
|
||||
{
|
||||
unsigned char buf[8];
|
||||
struct cio_open_to_host open;
|
||||
struct cio_close_to_host close;
|
||||
struct cio_read_to_host read;
|
||||
struct cio_write_to_host write;
|
||||
struct cio_lseek_to_host lseek;
|
||||
struct cio_unlink_to_host unlink;
|
||||
struct cio_rename_to_host rename;
|
||||
struct cio_gettime_to_host gettime;
|
||||
} parms;
|
||||
/* Variable-length data. */
|
||||
unsigned char data[];
|
||||
};
|
||||
|
||||
struct __attribute__((packed)) cio_from_host
|
||||
{
|
||||
/* Length (target endian). */
|
||||
unsigned int length;
|
||||
/* Parameters. */
|
||||
union
|
||||
{
|
||||
unsigned char buf[8];
|
||||
struct cio_open_from_host open;
|
||||
struct cio_close_from_host close;
|
||||
struct cio_read_from_host read;
|
||||
struct cio_write_from_host write;
|
||||
struct cio_lseek_from_host lseek;
|
||||
struct cio_unlink_from_host unlink;
|
||||
struct cio_rename_from_host rename;
|
||||
struct cio_gettime_from_host gettime;
|
||||
} parms;
|
||||
/* Data. */
|
||||
unsigned char data[];
|
||||
};
|
||||
|
||||
union
|
||||
{
|
||||
unsigned char buf[CIOBUFSIZ];
|
||||
int align;
|
||||
union
|
||||
{
|
||||
struct cio_to_host to_host;
|
||||
struct cio_from_host from_host;
|
||||
} u;
|
||||
} _CIOBUF_ __attribute__((section(".cio")));
|
||||
|
||||
#ifdef _BIG_ENDIAN
|
||||
#define SWAPSHORT(s) ((short)((((s) & 0xff) << 8) | (((s) & 0xff00) >> 8)))
|
||||
#define SWAPINT(i) (__builtin_bswap32 (i))
|
||||
#else
|
||||
#define SWAPSHORT(s) (s)
|
||||
#define SWAPINT(i) (i)
|
||||
#endif
|
||||
|
||||
static void __attribute__((noinline))
|
||||
do_semi_call (void)
|
||||
{
|
||||
asm volatile (".globl C$$IO$$\nnop\nC$$IO$$:nop" : "+m" (_CIOBUF_));
|
||||
}
|
||||
|
||||
static inline void
|
||||
semi_call_wrapper (unsigned char command, const char *data,
|
||||
unsigned int length)
|
||||
{
|
||||
_CIOBUF_.u.to_host.length = length;
|
||||
_CIOBUF_.u.to_host.command = command;
|
||||
if (data != NULL)
|
||||
memcpy (_CIOBUF_.u.to_host.data, data, length);
|
||||
do_semi_call ();
|
||||
}
|
||||
|
||||
static inline void
|
||||
semi_call_wrapper2 (unsigned char command, const char *data1,
|
||||
unsigned int length1, const char *data2,
|
||||
unsigned int length2)
|
||||
{
|
||||
_CIOBUF_.u.to_host.length = length1 + length2;
|
||||
_CIOBUF_.u.to_host.command = command;
|
||||
if (data1 != NULL)
|
||||
memcpy (_CIOBUF_.u.to_host.data, data1, length1);
|
||||
if (data2 != NULL)
|
||||
memcpy (_CIOBUF_.u.to_host.data + length1, data2, length2);
|
||||
do_semi_call ();
|
||||
}
|
||||
|
||||
void
|
||||
_exit (int status)
|
||||
{
|
||||
/* The semihosting interface appears to provide no way to return an
|
||||
exit status. */
|
||||
asm volatile (".globl C$$EXIT\nnop\nC$$EXIT:nop");
|
||||
}
|
||||
|
||||
int
|
||||
open (const char *path, int flags, ...)
|
||||
{
|
||||
/* ??? It's not clear what the suggested fd is for. */
|
||||
static short suggest_fd = 3;
|
||||
short ret_fd;
|
||||
++suggest_fd;
|
||||
_CIOBUF_.u.to_host.parms.open.fd = SWAPSHORT (suggest_fd);
|
||||
_CIOBUF_.u.to_host.parms.open.flags = SWAPSHORT (flags);
|
||||
semi_call_wrapper (_DTOPEN, path, strlen (path) + 1);
|
||||
ret_fd = SWAPSHORT (_CIOBUF_.u.from_host.parms.open.fd);
|
||||
if (ret_fd == -1)
|
||||
return -1;
|
||||
return suggest_fd;
|
||||
}
|
||||
|
||||
int
|
||||
close (int fd)
|
||||
{
|
||||
_CIOBUF_.u.to_host.parms.close.fd = SWAPSHORT (fd);
|
||||
semi_call_wrapper (_DTCLOSE, NULL, 0);
|
||||
return SWAPSHORT (_CIOBUF_.u.from_host.parms.close.result);
|
||||
}
|
||||
|
||||
int
|
||||
read (int fd, char *ptr, int len)
|
||||
{
|
||||
if (len > BUFSIZ)
|
||||
len = BUFSIZ;
|
||||
_CIOBUF_.u.to_host.parms.read.fd = SWAPSHORT (fd);
|
||||
_CIOBUF_.u.to_host.parms.read.length = SWAPSHORT (len);
|
||||
semi_call_wrapper (_DTREAD, NULL, 0);
|
||||
memcpy (ptr, _CIOBUF_.u.from_host.data, _CIOBUF_.u.from_host.length);
|
||||
return SWAPSHORT (_CIOBUF_.u.from_host.parms.read.result);
|
||||
}
|
||||
|
||||
int
|
||||
write (int fd, char *ptr, int len)
|
||||
{
|
||||
if (len > BUFSIZ)
|
||||
len = BUFSIZ;
|
||||
_CIOBUF_.u.to_host.parms.write.fd = SWAPSHORT (fd);
|
||||
_CIOBUF_.u.to_host.parms.write.length = SWAPSHORT (len);
|
||||
semi_call_wrapper (_DTWRITE, ptr, len);
|
||||
return SWAPSHORT (_CIOBUF_.u.from_host.parms.write.result);
|
||||
}
|
||||
|
||||
int
|
||||
lseek (int fd, int offset, int whence)
|
||||
{
|
||||
_CIOBUF_.u.to_host.parms.lseek.fd = SWAPSHORT (fd);
|
||||
_CIOBUF_.u.to_host.parms.lseek.offset = SWAPINT (offset);
|
||||
_CIOBUF_.u.to_host.parms.lseek.whence = SWAPSHORT (whence);
|
||||
semi_call_wrapper (_DTLSEEK, NULL, 0);
|
||||
return SWAPINT (_CIOBUF_.u.from_host.parms.lseek.result);
|
||||
}
|
||||
|
||||
int
|
||||
unlink (const char *path)
|
||||
{
|
||||
semi_call_wrapper (_DTUNLINK, path, strlen (path) + 1);
|
||||
return SWAPSHORT (_CIOBUF_.u.from_host.parms.unlink.result);
|
||||
}
|
||||
|
||||
int
|
||||
rename (const char *oldpath, const char *newpath)
|
||||
{
|
||||
semi_call_wrapper2 (_DTRENAME, oldpath, strlen (oldpath) + 1,
|
||||
newpath, strlen (newpath) + 1);
|
||||
return SWAPSHORT (_CIOBUF_.u.from_host.parms.rename.result);
|
||||
}
|
||||
|
||||
int
|
||||
gettimeofday (struct timeval *tp, void *tzvp)
|
||||
{
|
||||
struct timezone *tzp = tzvp;
|
||||
|
||||
if (tp)
|
||||
{
|
||||
semi_call_wrapper (_DTGETTIME, NULL, 0);
|
||||
tp->tv_sec = SWAPINT (_CIOBUF_.u.from_host.parms.gettime.time);
|
||||
tp->tv_usec = 0;
|
||||
}
|
||||
|
||||
if (tzp)
|
||||
{
|
||||
tzp->tz_minuteswest = 0;
|
||||
tzp->tz_dsttime = 0;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int
|
||||
isatty (int file __attribute__((unused)))
|
||||
{
|
||||
errno = ENOSYS;
|
||||
return 0;
|
||||
}
|
||||
|
||||
int
|
||||
fstat (int fd, struct stat *buf)
|
||||
{
|
||||
buf->st_mode = S_IFCHR; /* Always pretend to be a tty */
|
||||
buf->st_blksize = 0;
|
||||
|
||||
return (0);
|
||||
}
|
||||
Loading…
Reference in New Issue