#!/bin/sh # SPDX-License-Identifier: GPL-2.0 # # Print the linker name and its version in a 5 or 6-digit form. # Also, perform the minimum 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} + ${3:-0}))
}
orig_args="$@"
# Get the first line of the --version output.
IFS=' '
set -- $(LC_ALL=C "$@" --version)
if [ "$1" = GNU -a "$2" = ld ]; then
shift $(($# - 1))
version=$1
min_version=$($min_tool_version binutils)
name=BFD
disp_name="GNU ld" elif [ "$1" = GNU -a "$2" = gold ]; then echo"gold linker is not supported as it is not capable of linking the kernel proper." >&2
exit 1 else while [ $# -gt 1 -a "$1" != "LLD" ]; do
shift done
if [ "$1" = LLD ]; then
version=$2
min_version=$($min_tool_version llvm)
name=LLD
disp_name=LLD else echo"$orig_args: unknown linker" >&2
exit 1 fi fi
# There may be something after the version, such as a distribution's package # release number (like Fedora's "2.34-4.fc32") or punctuation (like LLD briefly # added before the "compatible with GNU linkers" string), so remove everything # after just numbers and periods.
version=${version%%[!0-9.]*}
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