[people/ms/linux.git] / scripts / cc-version.sh

#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
#
# Print the compiler name and its version in a 5 or 6-digit form.
# Also, perform the minimum version check.

set -e

# Print the compiler name and some version components.
get_compiler_info()
{
	cat <<- EOF | "$@" -E -P -x c - 2>/dev/null
	#if defined(__clang__)
	Clang	__clang_major__  __clang_minor__  __clang_patchlevel__
	#elif defined(__INTEL_COMPILER)
	ICC	__INTEL_COMPILER  __INTEL_COMPILER_UPDATE
	#elif defined(__GNUC__)
	GCC	__GNUC__  __GNUC_MINOR__  __GNUC_PATCHLEVEL__
	#else
	unknown
	#endif
	EOF
}

# Convert the version string x.y.z to a canonical 5 or 6-digit form.
get_canonical_version()
{
	IFS=.
	set -- $1
	echo $((10000 * $1 + 100 * $2 + $3))
}

# $@ instead of $1 because multiple words might be given, e.g. CC="ccache gcc".
orig_args="$@"
set -- $(get_compiler_info "$@")

name=$1

min_tool_version=$(dirname $0)/min-tool-version.sh

case "$name" in
GCC)
	version=$2.$3.$4
	min_version=$($min_tool_version gcc)
	;;
Clang)
	version=$2.$3.$4
	min_version=$($min_tool_version llvm)
	;;
ICC)
	version=$(($2 / 100)).$(($2 % 100)).$3
	min_version=$($min_tool_version icc)
	;;
*)
	echo "$orig_args: unknown compiler" >&2
	exit 1
	;;
esac

cversion=$(get_canonical_version $version)
min_cversion=$(get_canonical_version $min_version)

if [ "$cversion" -lt "$min_cversion" ]; then
	echo >&2 "***"
	echo >&2 "*** Compiler is too old."
	echo >&2 "***   Your $name version:    $version"
	echo >&2 "***   Minimum $name version: $min_version"
	echo >&2 "***"
	exit 1
fi

echo $name $cversion
Commit	Line	Data
aec6c60a MY	1	#!/bin/sh
	2	# SPDX-License-Identifier: GPL-2.0
	3	#
	4	# Print the compiler name and its version in a 5 or 6-digit form.
	5	# Also, perform the minimum version check.
	6
	7	set -e
	8
aec6c60a MY	9	# Print the compiler name and some version components.
	10	get_compiler_info()
	11	{
	12	cat <<- EOF \| "$@" -E -P -x c - 2>/dev/null
	13	#if defined(__clang__)
	14	Clang __clang_major__ __clang_minor__ __clang_patchlevel__
	15	#elif defined(__INTEL_COMPILER)
	16	ICC __INTEL_COMPILER __INTEL_COMPILER_UPDATE
	17	#elif defined(__GNUC__)
	18	GCC __GNUC__ __GNUC_MINOR__ __GNUC_PATCHLEVEL__
	19	#else
	20	unknown
	21	#endif
	22	EOF
	23	}
	24
	25	# Convert the version string x.y.z to a canonical 5 or 6-digit form.
	26	get_canonical_version()
	27	{
	28	IFS=.
	29	set -- $1
	30	echo $((10000 * $1 + 100 * $2 + $3))
	31	}
	32
	33	# $@ instead of $1 because multiple words might be given, e.g. CC="ccache gcc".
	34	orig_args="$@"
	35	set -- $(get_compiler_info "$@")
	36
	37	name=$1
	38
e24b3ffc MY	39	min_tool_version=$(dirname $0)/min-tool-version.sh
e24b3ffc MY	40
aec6c60a MY	41	case "$name" in
	42	GCC)
	43	version=$2.$3.$4
e24b3ffc	44	min_version=$($min_tool_version gcc)
aec6c60a MY	45	;;
	46	Clang)
	47	version=$2.$3.$4
e24b3ffc	48	min_version=$($min_tool_version llvm)
aec6c60a MY	49	;;
	50	ICC)
	51	version=$(($2 / 100)).$(($2 % 100)).$3
e24b3ffc	52	min_version=$($min_tool_version icc)
aec6c60a MY	53	;;
	54	*)
	55	echo "$orig_args: unknown compiler" >&2
	56	exit 1
	57	;;
	58	esac
	59
	60	cversion=$(get_canonical_version $version)
	61	min_cversion=$(get_canonical_version $min_version)
	62
	63	if [ "$cversion" -lt "$min_cversion" ]; then
	64	echo >&2 "***"
	65	echo >&2 "*** Compiler is too old."
	66	echo >&2 "*** Your $name version: $version"
	67	echo >&2 "*** Minimum $name version: $min_version"
	68	echo >&2 "***"
	69	exit 1
	70	fi
	71
	72	echo $name $cversion