| #! /bin/sh |
| |
| # Copyright (C) 2001-2017 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 3, 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 COPYING3. If not see |
| # <http://www.gnu.org/licenses/>. |
| |
| |
| # Generate gcc's various configuration headers: |
| # config.h, tconfig.h, bconfig.h, tm.h, libgcc_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" >> ${output}T |
| done |
| |
| # The first entry in HEADERS may be auto-FOO.h ; |
| # it wants to be included even when not -DIN_GCC. |
| # Postpone including defaults.h until after the insn-* |
| # headers, so that the HAVE_* flags are available |
| # when defaults.h gets included. |
| postpone_defaults_h="no" |
| if [ -n "$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 |
| if test x"$file" = x"defaults.h"; then |
| postpone_defaults_h="yes" |
| else |
| echo "# include \"$file\"" >> ${output}T |
| fi |
| done |
| echo '#endif' >> ${output}T |
| fi |
| fi |
| |
| # If this is tm.h, now include 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 >> ${output}T <<EOF |
| #if defined IN_GCC && !defined GENERATOR_FILE && !defined USED_FOR_TARGET |
| # include "insn-flags.h" |
| #endif |
| #if defined IN_GCC && !defined GENERATOR_FILE |
| # include "insn-modes.h" |
| #endif |
| #if defined IN_GCC && defined GENERATOR_FILE && !defined BITS_PER_UNIT |
| #include "machmode.h" |
| #endif |
| EOF |
| ;; |
| esac |
| |
| # If we postponed including defaults.h, add the #include now. |
| if test x"$postpone_defaults_h" = x"yes"; then |
| echo "# include \"defaults.h\"" >> ${output}T |
| fi |
| |
| # Add multiple inclusion protection guard, part two. |
| echo "#endif /* ${header_guard} */" >> ${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 |