| #! /bin/sh |
| # |
| # Check for accurate dependencies in gcc/Makefile.in. |
| # |
| # Copyright (C) 2008, 2012 Free Software Foundation, Inc. |
| # Written by Ralf Wildenhues <Ralf.Wildenhues@gmx.de>. |
| # |
| # This script is Free Software, and it can be copied, distributed and |
| # modified as defined in the GNU General Public License. A copy of |
| # its license can be downloaded from http://www.gnu.org/copyleft/gpl.html |
| # |
| # Start this script in an up to date build-tree/gcc directory. |
| # Using it in stage1 only works if the host compiler is GCC. |
| |
| # To continue an interrupted check, make sure there are no *.o.backup |
| # files lying around (i.e., move them back to their original name), |
| # and set $start_after to the name of the last object that should be skipped. |
| start_after= |
| |
| # Skip some objects unconditionally; make sure each name in this list is |
| # surrounded by spaces. |
| skip=" crtbegin.o crtbeginS.o crtbeginT.o crtend.o crtendS.o crtfastmath.o crtprec64.o crtprec80.o crtprec32.o ecrti.o ecrtn.o ncrti.o ncrtn.o " |
| |
| # Files which show up as dependencies other than through unconditional #include. |
| # This is an egrep pattern. |
| hidden_dep_files='(BASE-VER|DATESTAMP|DEV-PHASE|Makefile|xcoffout\.h|basic-block\.h|bconfig\.h)$' |
| |
| : ${MAKE=make} |
| : ${EGREP="grep -E"} |
| |
| # ------------------------------------------------------------------------- |
| # There should be no need for changes beyond this point. |
| |
| set -e |
| st=0 |
| |
| if test -f c-family/c-common.o; then :; else |
| echo "$0: rerun in an up to date build-tree/gcc directory" >&2 |
| exit 1 |
| fi |
| |
| for obj in *.o |
| do |
| if test -n "$start_after"; then |
| if test $obj = $start_after; then |
| start_after= |
| fi |
| continue |
| fi |
| case $skip in *\ $obj\ *) continue ;; esac |
| |
| mv -f $obj $obj.backup |
| ${MAKE} $obj CFLAGS='-MM -MF depfile' |
| mv -f $obj.backup $obj |
| ${MAKE} -t |
| LC_ALL=C ${MAKE} -d $obj >make-d-log |
| hdrs=`cat depfile` |
| for hdr in $hdrs; do |
| case $hdr in |
| *: | *.o | \\ | /* ) ;; |
| *) |
| echo $hdr ;; |
| esac |
| done < depfile | |
| LC_ALL=C sort -u > hdrs |
| |
| |
| sed -n '/.*Prerequisite..\([^ ]*\). is newer than target .'"$obj"'.*/s//\1/p' \ |
| < make-d-log | |
| LC_ALL=C sort -u > not-up-to-date |
| if test -s not-up-to-date; then |
| st=1 |
| echo "$0: error: prerequisites for $obj are not up to date:" >&2 |
| cat not-up-to-date >&2 |
| fi |
| sed -n '/.*Prerequisite..\([^ ]*\). is older than target .'"$obj"'.*/s//\1/p' \ |
| < make-d-log | |
| LC_ALL=C sort -u > deps |
| missing_deps=`LC_ALL=C join -v 1 hdrs deps` |
| unneeded_deps=`LC_ALL=C join -v 2 hdrs deps | $EGREP -v "$hidden_dep_files" || :` |
| if test -n "$missing_deps"; then |
| st=1 |
| echo "missing deps for $obj:" |
| echo "$missing_deps" | sed 's/^/ /' |
| fi |
| if test -n "$unneeded_deps"; then |
| # unneeded dependencies are not a big problem, so they cause no failure. |
| echo "unneeded deps for $obj:" |
| echo "$unneeded_deps" | sed 's/^/ /' |
| fi |
| done |
| exit $st |
| |
| # vi:sw=2: |