Commit | Line | Data |
---|---|---|
02aff859 | 1 | #!/bin/sh |
b2441318 | 2 | # SPDX-License-Identifier: GPL-2.0 |
02aff859 MY |
3 | # |
4 | # Print the linker name and its version in a 5 or 6-digit form. | |
5 | # Also, perform the minimum version check. | |
6 | ||
7 | set -e | |
8 | ||
02aff859 MY |
9 | # Convert the version string x.y.z to a canonical 5 or 6-digit form. |
10 | get_canonical_version() | |
11 | { | |
12 | IFS=. | |
13 | set -- $1 | |
14 | ||
15 | # If the 2nd or 3rd field is missing, fill it with a zero. | |
16 | # | |
17 | # The 4th field, if present, is ignored. | |
18 | # This occurs in development snapshots as in 2.35.1.20201116 | |
19 | echo $((10000 * $1 + 100 * ${2:-0} + ${3:-0})) | |
20 | } | |
21 | ||
22 | orig_args="$@" | |
23 | ||
24 | # Get the first line of the --version output. | |
25 | IFS=' | |
26 | ' | |
bcbcf50f | 27 | set -- $(LC_ALL=C "$@" --version) |
02aff859 MY |
28 | |
29 | # Split the line on spaces. | |
30 | IFS=' ' | |
31 | set -- $1 | |
32 | ||
e24b3ffc MY |
33 | min_tool_version=$(dirname $0)/min-tool-version.sh |
34 | ||
02aff859 MY |
35 | if [ "$1" = GNU -a "$2" = ld ]; then |
36 | shift $(($# - 1)) | |
37 | version=$1 | |
e24b3ffc | 38 | min_version=$($min_tool_version binutils) |
02aff859 MY |
39 | name=BFD |
40 | disp_name="GNU ld" | |
41 | elif [ "$1" = GNU -a "$2" = gold ]; then | |
42 | echo "gold linker is not supported as it is not capable of linking the kernel proper." >&2 | |
43 | exit 1 | |
02aff859 | 44 | else |
1f09af06 BR |
45 | while [ $# -gt 1 -a "$1" != "LLD" ]; do |
46 | shift | |
47 | done | |
48 | ||
49 | if [ "$1" = LLD ]; then | |
50 | version=$2 | |
e24b3ffc | 51 | min_version=$($min_tool_version llvm) |
1f09af06 BR |
52 | name=LLD |
53 | disp_name=LLD | |
54 | else | |
55 | echo "$orig_args: unknown linker" >&2 | |
56 | exit 1 | |
57 | fi | |
02aff859 MY |
58 | fi |
59 | ||
60 | # Some distributions append a package release number, as in 2.34-4.fc32 | |
61 | # Trim the hyphen and any characters that follow. | |
62 | version=${version%-*} | |
63 | ||
64 | cversion=$(get_canonical_version $version) | |
65 | min_cversion=$(get_canonical_version $min_version) | |
66 | ||
67 | if [ "$cversion" -lt "$min_cversion" ]; then | |
68 | echo >&2 "***" | |
69 | echo >&2 "*** Linker is too old." | |
70 | echo >&2 "*** Your $disp_name version: $version" | |
71 | echo >&2 "*** Minimum $disp_name version: $min_version" | |
72 | echo >&2 "***" | |
73 | exit 1 | |
74 | fi | |
75 | ||
76 | echo $name $cversion |