freebsd-src/tools/make_libdeps.sh
Hans Petter Selasky ea4fe0b6a2 Improve the library dependencies helper script in src/tools.
Implement double pass of the relevant Makefiles. First make a list of
library names and directories and then scan for all the dependencies.
Spaces in directories in the source tree are not supported.

This avoids using hardcoded mappings between the library name
and the directory containing the library Makefile.

Add support for scanning contrib/ofed .

Bail out on any errors.

Sponsored by:	Mellanox Technologies
MFC after:	1 week
2017-11-16 15:26:39 +00:00

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#!/bin/sh -e
#
# Copyright (c) 2002 Ruslan Ermilov, The FreeBSD Project
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# $FreeBSD$
export PATH=/bin:/usr/bin
set -e
LC_ALL=C # make sort deterministic
FS=': ' # internal field separator
LIBDEPENDS=./_libdeps # intermediate output file
LIBDIRS=./_libdirs # intermediate output file
USRSRC=${1:-/usr/src} # source root
LIBS="
lib
gnu/lib
kerberos5/lib
secure/lib
usr.bin/lex/lib
cddl/lib
contrib/ofed
" # where to scan for libraries
# convert -lfoo to foo
convert()
{
sed -e "s/\-l//g" -e "s/pthread/thr/g" -e "s/ncurses.*/ncurses/g"
}
# find library build directory given library name
findlibdir()
{
while read NAME && read DIR
do
if [ "$NAME" = "$1" ]; then
echo "$DIR"
exit
fi
done
# Should not happen
echo lib_not_found/lib$1
}
# find library build directories given one or more library names
resolvelibdirs()
{
while read LIBNAME
do
cat $LIBDIRS | tr ' ' '\n' | findlibdir "$LIBNAME"
done
}
# Generate interdependencies between libraries.
#
genlibdepends()
{
(
# Reset file
echo -n > $LIBDIRS
# First pass - generate list of directories
cd ${USRSRC}
find -s ${LIBS} -name Makefile |
xargs grep -l 'bsd\.lib\.mk' |
while read makefile; do
libdir=$(dirname ${makefile})
libname=$(
cd ${libdir}
make -m ${USRSRC}/share/mk WITH_OFED=YES -V LIB
)
if [ "${libname}" ]; then
echo "${libname} ${libdir}" >> $LIBDIRS
fi
done
# Second pass - generate dependencies
find -s ${LIBS} -name Makefile |
xargs grep -l 'bsd\.lib\.mk' |
while read makefile; do
libdir=$(dirname ${makefile})
deps=$(
cd ${libdir}
make -m ${USRSRC}/share/mk WITH_OFED=YES -V LDADD
)
if [ "${deps}" ]; then
echo ${libdir}"${FS}"$(echo ${deps} | tr ' ' '\n' | convert | resolvelibdirs)
fi
done
)
}
main()
{
if [ ! -f ${LIBDEPENDS} ]; then
genlibdepends >${LIBDEPENDS}
fi
prebuild_libs=$(
awk -F"${FS}" '{ print $2 }' ${LIBDEPENDS} | tr ' ' '\n' |
sort -u
)
echo "Libraries with dependents:"
echo
echo ${prebuild_libs} | tr ' ' '\n'
echo
echo "List of interdependencies:"
echo
for lib in ${prebuild_libs}; do
grep "^${lib}${FS}" ${LIBDEPENDS} || true
done |
awk -F"${FS}" '{
if ($2 in dependents)
dependents[$2]=dependents[$2]" "$1
else
dependents[$2]=$1
}
END {
for (lib in dependents)
print dependents[lib]": " lib
}' |
sort
exit 0
}
main