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#!/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
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