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#!/usr/bin/env bash
# List of hardcoded paths that should be ignored, as they may
# contain binaries for an architecture different from the
# architecture of the target.
declare -a IGNORES=(
# Skip firmware files, they could be ELF files for other
# architectures
"/lib/firmware"
"/usr/lib/firmware"
# Skip kernel modules
# When building a 32-bit userland on 64-bit architectures, the kernel
# and its modules may still be 64-bit. To keep the basic
# check-bin-arch logic simple, just skip this directory.
"/lib/modules"
"/usr/lib/modules"
# Skip files in /usr/share, several packages (qemu,
# pru-software-support) legitimately install ELF binaries that
# are not for the target architecture
"/usr/share"
)
while getopts p:l:r:a:i: OPT ; do
case "${OPT}" in
p) package="${OPTARG}";;
l) pkg_list="${OPTARG}";;
r) readelf="${OPTARG}";;
a) arch_name="${OPTARG}";;
i)
# Ensure we do have single '/' as separators,
# and that we have a leading and a trailing one.
pattern="$(sed -r -e 's:/+:/:g; s:^/*:/:; s:/*$:/:;' <<<"${OPTARG}")"
IGNORES+=("${pattern}")
;;
:) error "option '%s' expects a mandatory argument\n" "${OPTARG}";;
\?) error "unknown option '%s'\n" "${OPTARG}";;
esac
done
if test -z "${package}" -o -z "${pkg_list}" -o -z "${readelf}" -o -z "${arch_name}" ; then
echo "Usage: $0 -p <pkg> -l <pkg-file-list> -r <readelf> -a <arch name> [-i PATH ...]"
exit 1
fi
exitcode=0
# Only split on new lines, for filenames-with-spaces
IFS="
"
while read f; do
for ignore in "${IGNORES[@]}"; do
if [[ "${f}" =~ ^"${ignore}" ]]; then
continue 2
fi
done
# Skip symlinks. Some symlinks may have absolute paths as
# target, pointing to host binaries while we're building.
if [[ -L "${TARGET_DIR}/${f}" ]]; then
continue
fi
# Get architecture using readelf. We pipe through 'head -1' so
# that when the file is a static library (.a), we only take
# into account the architecture of the first object file.
arch=$(LC_ALL=C ${readelf} -h "${TARGET_DIR}/${f}" 2>&1 | \
sed -r -e '/^ Machine: +(.+)/!d; s//\1/;' | head -1)
# If no architecture found, assume it was not an ELF file
if test "${arch}" = "" ; then
continue
fi
# Architecture is correct
if test "${arch}" = "${arch_name}" ; then
continue
fi
printf 'ERROR: architecture for "%s" is "%s", should be "%s"\n' \
"${f}" "${arch}" "${arch_name}"
exitcode=1
done < <( sed -r -e "/^${package},\.(.+)$/!d; s//\1/;" ${pkg_list} )
exit ${exitcode}
|
