1aec6c60aSMasahiro Yamada#!/bin/sh 2aec6c60aSMasahiro Yamada# SPDX-License-Identifier: GPL-2.0 3aec6c60aSMasahiro Yamada# 4*2f7ab126SMiguel Ojeda# Print the C compiler name and its version in a 5 or 6-digit form. 5aec6c60aSMasahiro Yamada# Also, perform the minimum version check. 6aec6c60aSMasahiro Yamada 7aec6c60aSMasahiro Yamadaset -e 8aec6c60aSMasahiro Yamada 9*2f7ab126SMiguel Ojeda# Print the C compiler name and some version components. 10*2f7ab126SMiguel Ojedaget_c_compiler_info() 11aec6c60aSMasahiro Yamada{ 12aec6c60aSMasahiro Yamada cat <<- EOF | "$@" -E -P -x c - 2>/dev/null 13aec6c60aSMasahiro Yamada #if defined(__clang__) 14aec6c60aSMasahiro Yamada Clang __clang_major__ __clang_minor__ __clang_patchlevel__ 15aec6c60aSMasahiro Yamada #elif defined(__INTEL_COMPILER) 16aec6c60aSMasahiro Yamada ICC __INTEL_COMPILER __INTEL_COMPILER_UPDATE 17aec6c60aSMasahiro Yamada #elif defined(__GNUC__) 18aec6c60aSMasahiro Yamada GCC __GNUC__ __GNUC_MINOR__ __GNUC_PATCHLEVEL__ 19aec6c60aSMasahiro Yamada #else 20aec6c60aSMasahiro Yamada unknown 21aec6c60aSMasahiro Yamada #endif 22aec6c60aSMasahiro Yamada EOF 23aec6c60aSMasahiro Yamada} 24aec6c60aSMasahiro Yamada 25aec6c60aSMasahiro Yamada# Convert the version string x.y.z to a canonical 5 or 6-digit form. 26aec6c60aSMasahiro Yamadaget_canonical_version() 27aec6c60aSMasahiro Yamada{ 28aec6c60aSMasahiro Yamada IFS=. 29aec6c60aSMasahiro Yamada set -- $1 30aec6c60aSMasahiro Yamada echo $((10000 * $1 + 100 * $2 + $3)) 31aec6c60aSMasahiro Yamada} 32aec6c60aSMasahiro Yamada 33aec6c60aSMasahiro Yamada# $@ instead of $1 because multiple words might be given, e.g. CC="ccache gcc". 34aec6c60aSMasahiro Yamadaorig_args="$@" 35*2f7ab126SMiguel Ojedaset -- $(get_c_compiler_info "$@") 36aec6c60aSMasahiro Yamada 37aec6c60aSMasahiro Yamadaname=$1 38aec6c60aSMasahiro Yamada 39e24b3ffcSMasahiro Yamadamin_tool_version=$(dirname $0)/min-tool-version.sh 40e24b3ffcSMasahiro Yamada 41aec6c60aSMasahiro Yamadacase "$name" in 42aec6c60aSMasahiro YamadaGCC) 43aec6c60aSMasahiro Yamada version=$2.$3.$4 44e24b3ffcSMasahiro Yamada min_version=$($min_tool_version gcc) 45aec6c60aSMasahiro Yamada ;; 46aec6c60aSMasahiro YamadaClang) 47aec6c60aSMasahiro Yamada version=$2.$3.$4 48e24b3ffcSMasahiro Yamada min_version=$($min_tool_version llvm) 49aec6c60aSMasahiro Yamada ;; 50aec6c60aSMasahiro YamadaICC) 51aec6c60aSMasahiro Yamada version=$(($2 / 100)).$(($2 % 100)).$3 52e24b3ffcSMasahiro Yamada min_version=$($min_tool_version icc) 53aec6c60aSMasahiro Yamada ;; 54aec6c60aSMasahiro Yamada*) 55*2f7ab126SMiguel Ojeda echo "$orig_args: unknown C compiler" >&2 56aec6c60aSMasahiro Yamada exit 1 57aec6c60aSMasahiro Yamada ;; 58aec6c60aSMasahiro Yamadaesac 59aec6c60aSMasahiro Yamada 60aec6c60aSMasahiro Yamadacversion=$(get_canonical_version $version) 61aec6c60aSMasahiro Yamadamin_cversion=$(get_canonical_version $min_version) 62aec6c60aSMasahiro Yamada 63aec6c60aSMasahiro Yamadaif [ "$cversion" -lt "$min_cversion" ]; then 64aec6c60aSMasahiro Yamada echo >&2 "***" 65*2f7ab126SMiguel Ojeda echo >&2 "*** C compiler is too old." 66aec6c60aSMasahiro Yamada echo >&2 "*** Your $name version: $version" 67aec6c60aSMasahiro Yamada echo >&2 "*** Minimum $name version: $min_version" 68aec6c60aSMasahiro Yamada echo >&2 "***" 69aec6c60aSMasahiro Yamada exit 1 70aec6c60aSMasahiro Yamadafi 71aec6c60aSMasahiro Yamada 72aec6c60aSMasahiro Yamadaecho $name $cversion 73