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#!/bin/bash
# Returns colon separated list of linking dependencies
get_link_deps()
{
KEY=
for dep in `scanelf --use-ldpath -yBF '%f %n' "$1"`; do
if [[ -z $KEY ]]; then
KEY="$dep"
continue
fi
echo $dep
done
}
# Print linking deps for given executable or shared object in alphabetical order.
# Also try to dlopen shared objects in order to detect missing/broken dependencies.
if [[ "$1" = --linking-deps ]]; then
# Sanity check, file-5.12 is broken, bail out early
if [[ `file --version | grep --color=never file- | cut -d'-' -f2` == '5.12' ]]; then
echo "file-5.12 is broken, bailing out"
exit 1
fi
mime=`file -b --mime-type "$2"`
if [[ "$mime" == 'application/x-executable' ]] || [[ "${mime}" == 'application/x-sharedlib' ]]; then
LINK=`get_link_deps "$2"`
[[ "$mime" == 'application/x-sharedlib' ]] && /tmp/try_dlopen "$2"
[[ -n $LINK ]] && echo -e ${LINK//,/\\n} | sort -u
exit 0
fi
exit 1
fi
[[ -z $* ]] && echo "usage: `basename $0` <package>" && exit 0
# Check whether package is installed
if ! portageq has_version $ROOT/ $1; then
echo "$1 is not installed"
exit 1
fi
# Compile dlopen test application, we will use it to check for broken linking dependencies
gcc "`dirname $0`/try_dlopen.c" -o /tmp/try_dlopen -ldl
# For each installed slot
for cpv in `portageq match $ROOT/ $1`; do
echo "Processing $cpv"
# For each file that belongs to package
# run dynlink-scanner --linking-deps <file> to obtain its linking dependencies
# Assign all linking deps to packages and print package names
qfile -eR $ROOT `portageq contents $ROOT/ $cpv | xargs -r -L 1 "$0" --linking-deps` | cut -f1 -d' ' | sort -u
done
# Cleanup
rm -f /tmp/try_dlopen
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