1#!/bin/sh 2# SPDX-License-Identifier: GPL-2.0-only 3# 4# Print the assembler name and its version in a 5 or 6-digit form. 5# Also, perform the minimum version check. 6# (If it is the integrated assembler, return 0 as the version, and 7# skip the version check.) 8 9set -e 10 11# Convert the version string x.y.z to a canonical 5 or 6-digit form. 12get_canonical_version() 13{ 14 IFS=. 15 set -- $1 16 17 # If the 2nd or 3rd field is missing, fill it with a zero. 18 # 19 # The 4th field, if present, is ignored. 20 # This occurs in development snapshots as in 2.35.1.20201116 21 echo $((10000 * $1 + 100 * ${2:-0} + ${3:-0})) 22} 23 24# Clang fails to handle -Wa,--version unless -fno-integrated-as is given. 25# We check -fintegrated-as, expecting it is explicitly passed in for the 26# integrated assembler case. 27check_integrated_as() 28{ 29 while [ $# -gt 0 ]; do 30 if [ "$1" = -fintegrated-as ]; then 31 # For the integrated assembler, we do not check the 32 # version here. It is the same as the clang version, and 33 # it has been already checked by scripts/cc-version.sh. 34 echo LLVM 0 35 exit 0 36 fi 37 shift 38 done 39} 40 41check_integrated_as "$@" 42 43orig_args="$@" 44 45# Get the first line of the --version output. 46IFS=' 47' 48set -- $(LC_ALL=C "$@" -Wa,--version -c -x assembler /dev/null -o /dev/null 2>/dev/null) 49 50# Split the line on spaces. 51IFS=' ' 52set -- $1 53 54min_tool_version=$(dirname $0)/min-tool-version.sh 55 56if [ "$1" = GNU -a "$2" = assembler ]; then 57 shift $(($# - 1)) 58 version=$1 59 min_version=$($min_tool_version binutils) 60 name=GNU 61else 62 echo "$orig_args: unknown assembler invoked" >&2 63 exit 1 64fi 65 66# Some distributions append a package release number, as in 2.34-4.fc32 67# Trim the hyphen and any characters that follow. 68version=${version%-*} 69 70cversion=$(get_canonical_version $version) 71min_cversion=$(get_canonical_version $min_version) 72 73if [ "$cversion" -lt "$min_cversion" ]; then 74 echo >&2 "***" 75 echo >&2 "*** Assembler is too old." 76 echo >&2 "*** Your $name assembler version: $version" 77 echo >&2 "*** Minimum $name assembler version: $min_version" 78 echo >&2 "***" 79 exit 1 80fi 81 82echo $name $cversion 83