Merge tag 'spdx_identifiers-4.14-rc8' of git://git.kernel.org/pub/scm/linux/kernel...
[platform/kernel/linux-rpi.git] / scripts / gcc-version.sh
1 #!/bin/sh
2 # SPDX-License-Identifier: GPL-2.0
3 #
4 # gcc-version [-p] gcc-command
5 #
6 # Prints the gcc version of `gcc-command' in a canonical 4-digit form
7 # such as `0295' for gcc-2.95, `0303' for gcc-3.3, etc.
8 #
9 # With the -p option, prints the patchlevel as well, for example `029503' for
10 # gcc-2.95.3, `030301' for gcc-3.3.1, etc.
11 #
12
13 if [ "$1" = "-p" ] ; then
14         with_patchlevel=1;
15         shift;
16 fi
17
18 compiler="$*"
19
20 if [ ${#compiler} -eq 0 ]; then
21         echo "Error: No compiler specified."
22         printf "Usage:\n\t$0 <gcc-command>\n"
23         exit 1
24 fi
25
26 MAJOR=$(echo __GNUC__ | $compiler -E -x c - | tail -n 1)
27 MINOR=$(echo __GNUC_MINOR__ | $compiler -E -x c - | tail -n 1)
28 if [ "x$with_patchlevel" != "x" ] ; then
29         PATCHLEVEL=$(echo __GNUC_PATCHLEVEL__ | $compiler -E -x c - | tail -n 1)
30         printf "%02d%02d%02d\\n" $MAJOR $MINOR $PATCHLEVEL
31 else
32         printf "%02d%02d\\n" $MAJOR $MINOR
33 fi