#!/bin/sh # SPDX-License-Identifier: GPL-2.0-only # # Print the assembler name and its version in a 5 or 6-digit form. # Also, perform the minimum version check. # (If it is the integrated assembler, return 0 as the version, and # skip the version check.) set -e # Convert the version string x.y.z to a canonical 5 or 6-digit form. get_canonical_version() { IFS=. set -- $1 # If the 2nd or 3rd field is missing, fill it with a zero. # # The 4th field, if present, is ignored. # This occurs in development snapshots as in 2.35.1.20201116 echo $((10000 * $1 + 100 * ${2:-0} + ${3:-0})) } # Clang fails to handle -Wa,--version unless -fno-integrated-as is given. # We check -fintegrated-as, expecting it is explicitly passed in for the # integrated assembler case. check_integrated_as() { while [ $# -gt 0 ]; do if [ "$1" = -fintegrated-as ]; then # For the integrated assembler, we do not check the # version here. It is the same as the clang version, and # it has been already checked by scripts/cc-version.sh. echo LLVM 0 exit 0 fi shift done } check_integrated_as "$@" orig_args="$@" # Get the first line of the --version output. IFS=' ' set -- $(LC_ALL=C "$@" -Wa,--version -c -x assembler /dev/null -o /dev/null 2>/dev/null) # Split the line on spaces. IFS=' ' set -- $1 if [ "$1" = GNU -a "$2" = assembler ]; then shift $(($# - 1)) version=$1 name=GNU else echo "$orig_args: unknown assembler invoked" >&2 exit 1 fi # Some distributions append a package release number, as in 2.34-4.fc32 # Trim the hyphen and any characters that follow. version=${version%-*} cversion=$(get_canonical_version $version) echo $name $cversion