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95 lines
2.8 KiB
Bash
95 lines
2.8 KiB
Bash
#! /bin/sh
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#
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# Check for accurate dependencies in gcc/Makefile.in.
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#
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# Copyright (C) 2008-2023 Free Software Foundation, Inc.
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# Written by Ralf Wildenhues <Ralf.Wildenhues@gmx.de>.
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#
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# This script is Free Software, and it can be copied, distributed and
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# modified as defined in the GNU General Public License. A copy of
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# its license can be downloaded from http://www.gnu.org/copyleft/gpl.html
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#
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# Start this script in an up to date build-tree/gcc directory.
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# Using it in stage1 only works if the host compiler is GCC.
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# To continue an interrupted check, make sure there are no *.o.backup
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# files lying around (i.e., move them back to their original name),
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# and set $start_after to the name of the last object that should be skipped.
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start_after=
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# Skip some objects unconditionally; make sure each name in this list is
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# surrounded by spaces.
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skip=" crtbegin.o crtbeginS.o crtbeginT.o crtend.o crtendS.o crtfastmath.o crtprec64.o crtprec80.o crtprec32.o ecrti.o ecrtn.o ncrti.o ncrtn.o "
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# Files which show up as dependencies other than through unconditional #include.
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# This is an egrep pattern.
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hidden_dep_files='(BASE-VER|DATESTAMP|DEV-PHASE|Makefile|xcoffout\.h|basic-block\.h|bconfig\.h)$'
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: ${MAKE=make}
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: ${EGREP="grep -E"}
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# -------------------------------------------------------------------------
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# There should be no need for changes beyond this point.
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set -e
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st=0
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if test -f c-family/c-common.o; then :; else
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echo "$0: rerun in an up to date build-tree/gcc directory" >&2
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exit 1
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fi
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for obj in *.o
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do
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if test -n "$start_after"; then
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if test $obj = $start_after; then
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start_after=
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fi
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continue
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fi
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case $skip in *\ $obj\ *) continue ;; esac
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mv -f $obj $obj.backup
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${MAKE} $obj CFLAGS='-MM -MF depfile'
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mv -f $obj.backup $obj
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${MAKE} -t
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LC_ALL=C ${MAKE} -d $obj >make-d-log
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hdrs=`cat depfile`
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for hdr in $hdrs; do
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case $hdr in
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*: | *.o | \\ | /* ) ;;
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*)
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echo $hdr ;;
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esac
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done < depfile |
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LC_ALL=C sort -u > hdrs
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sed -n '/.*Prerequisite..\([^ ]*\). is newer than target .'"$obj"'.*/s//\1/p' \
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< make-d-log |
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LC_ALL=C sort -u > not-up-to-date
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if test -s not-up-to-date; then
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st=1
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echo "$0: error: prerequisites for $obj are not up to date:" >&2
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cat not-up-to-date >&2
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fi
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sed -n '/.*Prerequisite..\([^ ]*\). is older than target .'"$obj"'.*/s//\1/p' \
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< make-d-log |
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LC_ALL=C sort -u > deps
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missing_deps=`LC_ALL=C join -v 1 hdrs deps`
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unneeded_deps=`LC_ALL=C join -v 2 hdrs deps | $EGREP -v "$hidden_dep_files" || :`
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if test -n "$missing_deps"; then
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st=1
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echo "missing deps for $obj:"
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echo "$missing_deps" | sed 's/^/ /'
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fi
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if test -n "$unneeded_deps"; then
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# unneeded dependencies are not a big problem, so they cause no failure.
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echo "unneeded deps for $obj:"
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echo "$unneeded_deps" | sed 's/^/ /'
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fi
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done
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exit $st
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# vi:sw=2:
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