Files
Linux/scripts/cc-version.sh
T
Miguel Ojeda 2f7ab1267d Kbuild: add Rust support
Having most of the new files in place, we now enable Rust support
in the build system, including `Kconfig` entries related to Rust,
the Rust configuration printer and a few other bits.

Reviewed-by: Kees Cook <[email protected]>
Reviewed-by: Nick Desaulniers <[email protected]>
Tested-by: Nick Desaulniers <[email protected]>
Reviewed-by: Greg Kroah-Hartman <[email protected]>
Co-developed-by: Alex Gaynor <[email protected]>
Signed-off-by: Alex Gaynor <[email protected]>
Co-developed-by: Finn Behrens <[email protected]>
Signed-off-by: Finn Behrens <[email protected]>
Co-developed-by: Adam Bratschi-Kaye <[email protected]>
Signed-off-by: Adam Bratschi-Kaye <[email protected]>
Co-developed-by: Wedson Almeida Filho <[email protected]>
Signed-off-by: Wedson Almeida Filho <[email protected]>
Co-developed-by: Michael Ellerman <[email protected]>
Signed-off-by: Michael Ellerman <[email protected]>
Co-developed-by: Sven Van Asbroeck <[email protected]>
Signed-off-by: Sven Van Asbroeck <[email protected]>
Co-developed-by: Gary Guo <[email protected]>
Signed-off-by: Gary Guo <[email protected]>
Co-developed-by: Boris-Chengbiao Zhou <[email protected]>
Signed-off-by: Boris-Chengbiao Zhou <[email protected]>
Co-developed-by: Boqun Feng <[email protected]>
Signed-off-by: Boqun Feng <[email protected]>
Co-developed-by: Douglas Su <[email protected]>
Signed-off-by: Douglas Su <[email protected]>
Co-developed-by: Dariusz Sosnowski <[email protected]>
Signed-off-by: Dariusz Sosnowski <[email protected]>
Co-developed-by: Antonio Terceiro <[email protected]>
Signed-off-by: Antonio Terceiro <[email protected]>
Co-developed-by: Daniel Xu <[email protected]>
Signed-off-by: Daniel Xu <[email protected]>
Co-developed-by: Björn Roy Baron <[email protected]>
Signed-off-by: Björn Roy Baron <[email protected]>
Co-developed-by: Martin Rodriguez Reboredo <[email protected]>
Signed-off-by: Martin Rodriguez Reboredo <[email protected]>
Signed-off-by: Miguel Ojeda <[email protected]>
2022-09-28 09:02:20 +02:00

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#!/bin/sh
# SPDX-License-Identifier: GPL-2.0
#
# Print the C compiler name and its version in a 5 or 6-digit form.
# Also, perform the minimum version check.
set -e
# Print the C compiler name and some version components.
get_c_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 -- $(get_c_compiler_info "$@")
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 C 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 "*** C 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