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|
#!@SH@
#
# opkhelper
# src/oh-shlibdeps.sh
# Find shared library dependencies.
#
# Copyright (C) 2019 Patrick "P. J." McDermott
#
# This program 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 2 of the License, or
# (at your option) any later version.
#
# This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
. '@pkgdatadir@/load.sm'
READELF_NEEDED_SED='s/^ 0x[0-9a-f]* (NEEDED) *Shared library: \[\(.*\)\]$/\1/p'
find_lib()
{
local lib="${1}"
shift 1
local rtld_dirs=
local pkg=
local dir=
rtld_dirs="$(@LDCONFIG@ -v 2>/dev/null | \
sed -n 's/^\([^\t].*\):$/\1/p')"
# Check just-built packages.
for pkg in *.data/; do
for dir in ${rtld_dirs}; do
if [ -r "${pkg}/${dir}/${lib}" ]; then
printf '%s,\n' "${pkg%.data/}"
return 0
fi
done
done
# Check installed packages.
for dir in ${rtld_dirs}; do
if [ -r "${dir}/${lib}" ]; then
lib="${dir}/${lib}"
pkg="$('@OPKG@' search "${lib}" | sed 's/ - .*$//')"
if [ -n "${pkg}" ]; then
printf '%s,\n' "${pkg}"
return 0
else
oh_warn "$(oh_get_msg 'shlib_no_pkg')" "${lib}"
return 0
fi
fi
done
oh_warn "$(oh_get_msg 'shlib_no_lib')" "${lib}"
return 0
}
find_needed()
{
local elf="${1}"
shift 1
while IFS='' read -r lib; do
find_lib "${lib}"
done <<-EOF
$('@READELF@' -d "${elf}" | sed -n "${READELF_NEEDED_SED}")
EOF
return 0
}
find_elves()
{
local d="${1}"
shift 1
local file=
while IFS='' read -r file; do
if file "${file}" | grep -E 'ELF.*(executable|shared)' \
>/dev/null 2>&1; then
find_needed "${file}"
fi
done <<-EOF
$(find "${d}" -type f -a ! -path '*/debug/*' \
-a \( -name '*.so*' -o -perm '-a+x' \))
EOF
return 0
}
main()
{
local d=
oh_init
for d in *.data/; do
exec 3>"${d%.data/}.substvars"
printf 'Shlib-Depends:' >&3
printf ' %s' $(find_elves "${d}" | sort -u) >&3
exec 3>&-
done
return 0
}
main "${@}"
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