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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"
- # Skip files in {/usr,}/lib/grub, since it is possible to have
- # it for a different architecture (e.g. i386 grub on x86_64).
- "/lib/grub"
- "/usr/lib/grub"
- # Guile modules are ELF files, with a "None" machine
- "/usr/lib/guile"
- )
- 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}
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