IB/core: Make testing MR flags for writability a static inline function
[linux-2.6-block.git] / scripts / clang-version.sh
1 #!/bin/sh
2 # SPDX-License-Identifier: GPL-2.0
3 #
4 # clang-version [-p] clang-command
5 #
6 # Prints the compiler version of `clang-command' in a canonical 4-digit form
7 # such as `0500' for clang-5.0 etc.
8 #
9 # With the -p option, prints the patchlevel as well, for example `050001' for
10 # clang-5.0.1 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$0 <clang-command>\n"
23         exit 1
24 fi
25
26 MAJOR=$(echo __clang_major__ | $compiler -E -x c - | tail -n 1)
27 MINOR=$(echo __clang_minor__ | $compiler -E -x c - | tail -n 1)
28 if [ "x$with_patchlevel" != "x" ] ; then
29         PATCHLEVEL=$(echo __clang_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