Masahiro Yamada | aec6c60 | 2021-01-16 08:35:42 +0900 | [diff] [blame] | 1 | #!/bin/sh |
| 2 | # SPDX-License-Identifier: GPL-2.0 |
| 3 | # |
Miguel Ojeda | 2f7ab12 | 2021-07-03 16:42:57 +0200 | [diff] [blame] | 4 | # Print the C compiler name and its version in a 5 or 6-digit form. |
Masahiro Yamada | aec6c60 | 2021-01-16 08:35:42 +0900 | [diff] [blame] | 5 | # Also, perform the minimum version check. |
| 6 | |
| 7 | set -e |
| 8 | |
Miguel Ojeda | 2f7ab12 | 2021-07-03 16:42:57 +0200 | [diff] [blame] | 9 | # Print the C compiler name and some version components. |
| 10 | get_c_compiler_info() |
Masahiro Yamada | aec6c60 | 2021-01-16 08:35:42 +0900 | [diff] [blame] | 11 | { |
| 12 | cat <<- EOF | "$@" -E -P -x c - 2>/dev/null |
| 13 | #if defined(__clang__) |
| 14 | Clang __clang_major__ __clang_minor__ __clang_patchlevel__ |
Masahiro Yamada | aec6c60 | 2021-01-16 08:35:42 +0900 | [diff] [blame] | 15 | #elif defined(__GNUC__) |
| 16 | GCC __GNUC__ __GNUC_MINOR__ __GNUC_PATCHLEVEL__ |
| 17 | #else |
| 18 | unknown |
| 19 | #endif |
| 20 | EOF |
| 21 | } |
| 22 | |
| 23 | # Convert the version string x.y.z to a canonical 5 or 6-digit form. |
| 24 | get_canonical_version() |
| 25 | { |
| 26 | IFS=. |
| 27 | set -- $1 |
| 28 | echo $((10000 * $1 + 100 * $2 + $3)) |
| 29 | } |
| 30 | |
| 31 | # $@ instead of $1 because multiple words might be given, e.g. CC="ccache gcc". |
| 32 | orig_args="$@" |
Miguel Ojeda | 2f7ab12 | 2021-07-03 16:42:57 +0200 | [diff] [blame] | 33 | set -- $(get_c_compiler_info "$@") |
Masahiro Yamada | aec6c60 | 2021-01-16 08:35:42 +0900 | [diff] [blame] | 34 | |
| 35 | name=$1 |
| 36 | |
Masahiro Yamada | e24b3ff | 2021-03-16 01:12:55 +0900 | [diff] [blame] | 37 | min_tool_version=$(dirname $0)/min-tool-version.sh |
| 38 | |
Masahiro Yamada | aec6c60 | 2021-01-16 08:35:42 +0900 | [diff] [blame] | 39 | case "$name" in |
| 40 | GCC) |
| 41 | version=$2.$3.$4 |
Masahiro Yamada | e24b3ff | 2021-03-16 01:12:55 +0900 | [diff] [blame] | 42 | min_version=$($min_tool_version gcc) |
Masahiro Yamada | aec6c60 | 2021-01-16 08:35:42 +0900 | [diff] [blame] | 43 | ;; |
| 44 | Clang) |
| 45 | version=$2.$3.$4 |
Masahiro Yamada | e24b3ff | 2021-03-16 01:12:55 +0900 | [diff] [blame] | 46 | min_version=$($min_tool_version llvm) |
Masahiro Yamada | aec6c60 | 2021-01-16 08:35:42 +0900 | [diff] [blame] | 47 | ;; |
| 48 | ICC) |
| 49 | version=$(($2 / 100)).$(($2 % 100)).$3 |
Masahiro Yamada | e24b3ff | 2021-03-16 01:12:55 +0900 | [diff] [blame] | 50 | min_version=$($min_tool_version icc) |
Masahiro Yamada | aec6c60 | 2021-01-16 08:35:42 +0900 | [diff] [blame] | 51 | ;; |
| 52 | *) |
Miguel Ojeda | 2f7ab12 | 2021-07-03 16:42:57 +0200 | [diff] [blame] | 53 | echo "$orig_args: unknown C compiler" >&2 |
Masahiro Yamada | aec6c60 | 2021-01-16 08:35:42 +0900 | [diff] [blame] | 54 | exit 1 |
| 55 | ;; |
| 56 | esac |
| 57 | |
| 58 | cversion=$(get_canonical_version $version) |
| 59 | min_cversion=$(get_canonical_version $min_version) |
| 60 | |
| 61 | if [ "$cversion" -lt "$min_cversion" ]; then |
| 62 | echo >&2 "***" |
Miguel Ojeda | 2f7ab12 | 2021-07-03 16:42:57 +0200 | [diff] [blame] | 63 | echo >&2 "*** C compiler is too old." |
Masahiro Yamada | aec6c60 | 2021-01-16 08:35:42 +0900 | [diff] [blame] | 64 | echo >&2 "*** Your $name version: $version" |
| 65 | echo >&2 "*** Minimum $name version: $min_version" |
| 66 | echo >&2 "***" |
| 67 | exit 1 |
| 68 | fi |
| 69 | |
| 70 | echo $name $cversion |