#! /bin/sh # Copyright (C) 2001, 2002, 2006 Free Software Foundation, Inc. # This file is part of GCC. # GCC is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2, or (at your option) # any later version. # GCC is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # You should have received a copy of the GNU General Public License # along with GCC; see the file COPYING. If not, write to # the Free Software Foundation, 51 Franklin Street, Fifth Floor, # Boston MA 02110-1301, USA. # Generate gcc's various configuration headers: # config.h, tconfig.h, bconfig.h, tm.h, and tm_p.h. # $1 is the file to generate. DEFINES, HEADERS, and possibly # TARGET_CPU_DEFAULT are expected to be set in the environment. if [ -z "$1" ]; then echo "Usage: DEFINES='list' HEADERS='list' \\" >&2 echo " [TARGET_CPU_DEFAULT='default'] mkconfig.sh FILE" >&2 exit 1 fi output=$1 rm -f ${output}T # This converts a file name into header guard macro format. hg_sed_expr='y,abcdefghijklmnopqrstuvwxyz./,ABCDEFGHIJKLMNOPQRSTUVWXYZ__,' header_guard=GCC_`echo ${output} | sed -e ${hg_sed_expr}` # Add multiple inclusion protection guard, part one. echo "#ifndef ${header_guard}" >> ${output}T echo "#define ${header_guard}" >> ${output}T # A special test to ensure that build-time files don't blindly use # config.h. if test x"$output" = x"config.h"; then echo "#ifdef GENERATOR_FILE" >> ${output}T echo "#error config.h is for the host, not build, machine." >> ${output}T echo "#endif" >> ${output}T fi # Define TARGET_CPU_DEFAULT if the system wants one. # This substitutes for lots of *.h files. if [ "$TARGET_CPU_DEFAULT" != "" ]; then echo "#define TARGET_CPU_DEFAULT ($TARGET_CPU_DEFAULT)" >> ${output}T fi # Provide defines for other macros set in config.gcc for this file. for def in $DEFINES; do echo "#ifndef $def" | sed 's/=.*//' >> ${output}T echo "# define $def" | sed 's/=/ /' >> ${output}T echo "#endif" >> ${output}T done # The first entry in HEADERS may be auto-FOO.h ; # it wants to be included even when not -DIN_GCC. if [ -n "$HEADERS" ]; then set $HEADERS case "$1" in auto-* ) echo "#include \"$1\"" >> ${output}T shift ;; esac if [ $# -ge 1 ]; then echo '#ifdef IN_GCC' >> ${output}T for file in "$@"; do echo "# include \"$file\"" >> ${output}T done echo '#endif' >> ${output}T fi fi # If this is tm.h, now include insn-constants.h and insn-flags.h only # if IN_GCC is defined but neither GENERATOR_FILE nor USED_FOR_TARGET # is defined. (Much of this is temporary.) case $output in tm.h ) cat >> ${output}T <> ${output}T # Avoid changing the actual file if possible. if [ -f $output ] && cmp ${output}T $output >/dev/null 2>&1; then echo $output is unchanged >&2 rm -f ${output}T else mv -f ${output}T $output fi # Touch a stamp file for Make's benefit. rm -f cs-$output echo timestamp > cs-$output