190075Sobrien#! /bin/sh 290075Sobrien 3169689Skan# Copyright (C) 2001, 2002, 2006 Free Software Foundation, Inc. 4132718Skan# This file is part of GCC. 590075Sobrien 6132718Skan# GCC is free software; you can redistribute it and/or modify 7132718Skan# it under the terms of the GNU General Public License as published by 8132718Skan# the Free Software Foundation; either version 2, or (at your option) 9132718Skan# any later version. 10132718Skan 11132718Skan# GCC is distributed in the hope that it will be useful, 12132718Skan# but WITHOUT ANY WARRANTY; without even the implied warranty of 13132718Skan# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14132718Skan# GNU General Public License for more details. 15132718Skan 16132718Skan# You should have received a copy of the GNU General Public License 17132718Skan# along with GCC; see the file COPYING. If not, write to 18169689Skan# the Free Software Foundation, 51 Franklin Street, Fifth Floor, 19169689Skan# Boston MA 02110-1301, USA. 20132718Skan 21132718Skan 22132718Skan# Generate gcc's various configuration headers: 23132718Skan# config.h, tconfig.h, bconfig.h, tm.h, and tm_p.h. 24132718Skan# $1 is the file to generate. DEFINES, HEADERS, and possibly 25132718Skan# TARGET_CPU_DEFAULT are expected to be set in the environment. 26132718Skan 2790075Sobrienif [ -z "$1" ]; then 28132718Skan echo "Usage: DEFINES='list' HEADERS='list' \\" >&2 29132718Skan echo " [TARGET_CPU_DEFAULT='default'] mkconfig.sh FILE" >&2 3090075Sobrien exit 1 3190075Sobrienfi 3290075Sobrien 3390075Sobrienoutput=$1 3496263Sobrienrm -f ${output}T 3590075Sobrien 36132718Skan# This converts a file name into header guard macro format. 37132718Skanhg_sed_expr='y,abcdefghijklmnopqrstuvwxyz./,ABCDEFGHIJKLMNOPQRSTUVWXYZ__,' 38132718Skanheader_guard=GCC_`echo ${output} | sed -e ${hg_sed_expr}` 39132718Skan 40132718Skan# Add multiple inclusion protection guard, part one. 41132718Skanecho "#ifndef ${header_guard}" >> ${output}T 42132718Skanecho "#define ${header_guard}" >> ${output}T 43132718Skan 44169689Skan# A special test to ensure that build-time files don't blindly use 45169689Skan# config.h. 46169689Skanif test x"$output" = x"config.h"; then 47169689Skan echo "#ifdef GENERATOR_FILE" >> ${output}T 48169689Skan echo "#error config.h is for the host, not build, machine." >> ${output}T 49169689Skan echo "#endif" >> ${output}T 50169689Skanfi 51169689Skan 5290075Sobrien# Define TARGET_CPU_DEFAULT if the system wants one. 5390075Sobrien# This substitutes for lots of *.h files. 5490075Sobrienif [ "$TARGET_CPU_DEFAULT" != "" ]; then 5596263Sobrien echo "#define TARGET_CPU_DEFAULT ($TARGET_CPU_DEFAULT)" >> ${output}T 5690075Sobrienfi 5790075Sobrien 58132718Skan# Provide defines for other macros set in config.gcc for this file. 59132718Skanfor def in $DEFINES; do 60117395Skan echo "#ifndef $def" | sed 's/=.*//' >> ${output}T 61117395Skan echo "# define $def" | sed 's/=/ /' >> ${output}T 62117395Skan echo "#endif" >> ${output}T 63117395Skandone 64117395Skan 65169689Skan# The first entry in HEADERS may be auto-FOO.h ; 6690075Sobrien# it wants to be included even when not -DIN_GCC. 6790075Sobrienif [ -n "$HEADERS" ]; then 68132718Skan set $HEADERS 69132718Skan case "$1" in auto-* ) 70132718Skan echo "#include \"$1\"" >> ${output}T 7190075Sobrien shift 7290075Sobrien ;; 7390075Sobrien esac 74132718Skan if [ $# -ge 1 ]; then 75132718Skan echo '#ifdef IN_GCC' >> ${output}T 76132718Skan for file in "$@"; do 77132718Skan echo "# include \"$file\"" >> ${output}T 78132718Skan done 79132718Skan echo '#endif' >> ${output}T 80132718Skan fi 8190075Sobrienfi 8290075Sobrien 83169689Skan# If this is tm.h, now include insn-constants.h and insn-flags.h only 84169689Skan# if IN_GCC is defined but neither GENERATOR_FILE nor USED_FOR_TARGET 85169689Skan# is defined. (Much of this is temporary.) 8690075Sobrien 8790075Sobriencase $output in 88132718Skan tm.h ) 8996263Sobrien cat >> ${output}T <<EOF 90132718Skan#if defined IN_GCC && !defined GENERATOR_FILE && !defined USED_FOR_TARGET 9196263Sobrien# include "insn-constants.h" 9296263Sobrien# include "insn-flags.h" 9396263Sobrien#endif 9496263SobrienEOF 9590075Sobrien ;; 9690075Sobrienesac 9790075Sobrien 98132718Skan# Add multiple inclusion protection guard, part two. 99132718Skanecho "#endif /* ${header_guard} */" >> ${output}T 100132718Skan 10190075Sobrien# Avoid changing the actual file if possible. 10296263Sobrienif [ -f $output ] && cmp ${output}T $output >/dev/null 2>&1; then 10390075Sobrien echo $output is unchanged >&2 10496263Sobrien rm -f ${output}T 10590075Sobrienelse 10696263Sobrien mv -f ${output}T $output 10790075Sobrienfi 10890075Sobrien 10990075Sobrien# Touch a stamp file for Make's benefit. 11090075Sobrienrm -f cs-$output 11190075Sobrienecho timestamp > cs-$output 112