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160 lines
5.6 KiB
160 lines
5.6 KiB
#!/bin/sh |
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# SPDX-License-Identifier: GPL-2.0 |
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# |
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# Tests whether a suitable Rust toolchain is available. |
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# |
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# Pass `-v` for human output and more checks (as warnings). |
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set -e |
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min_tool_version=$(dirname $0)/min-tool-version.sh |
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# Convert the version string x.y.z to a canonical up-to-7-digits form. |
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# |
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# Note that this function uses one more digit (compared to other |
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# instances in other version scripts) to give a bit more space to |
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# `rustc` since it will reach 1.100.0 in late 2026. |
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get_canonical_version() |
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{ |
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IFS=. |
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set -- $1 |
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echo $((100000 * $1 + 100 * $2 + $3)) |
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} |
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# Check that the Rust compiler exists. |
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if ! command -v "$RUSTC" >/dev/null; then |
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if [ "$1" = -v ]; then |
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echo >&2 "***" |
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echo >&2 "*** Rust compiler '$RUSTC' could not be found." |
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echo >&2 "***" |
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fi |
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exit 1 |
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fi |
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# Check that the Rust bindings generator exists. |
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if ! command -v "$BINDGEN" >/dev/null; then |
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if [ "$1" = -v ]; then |
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echo >&2 "***" |
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echo >&2 "*** Rust bindings generator '$BINDGEN' could not be found." |
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echo >&2 "***" |
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fi |
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exit 1 |
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fi |
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# Check that the Rust compiler version is suitable. |
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# |
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# Non-stable and distributions' versions may have a version suffix, e.g. `-dev`. |
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rust_compiler_version=$( \ |
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LC_ALL=C "$RUSTC" --version 2>/dev/null \ |
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| head -n 1 \ |
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| grep -oE '[0-9]+\.[0-9]+\.[0-9]+' \ |
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) |
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rust_compiler_min_version=$($min_tool_version rustc) |
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rust_compiler_cversion=$(get_canonical_version $rust_compiler_version) |
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rust_compiler_min_cversion=$(get_canonical_version $rust_compiler_min_version) |
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if [ "$rust_compiler_cversion" -lt "$rust_compiler_min_cversion" ]; then |
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if [ "$1" = -v ]; then |
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echo >&2 "***" |
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echo >&2 "*** Rust compiler '$RUSTC' is too old." |
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echo >&2 "*** Your version: $rust_compiler_version" |
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echo >&2 "*** Minimum version: $rust_compiler_min_version" |
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echo >&2 "***" |
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fi |
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exit 1 |
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fi |
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if [ "$1" = -v ] && [ "$rust_compiler_cversion" -gt "$rust_compiler_min_cversion" ]; then |
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echo >&2 "***" |
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echo >&2 "*** Rust compiler '$RUSTC' is too new. This may or may not work." |
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echo >&2 "*** Your version: $rust_compiler_version" |
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echo >&2 "*** Expected version: $rust_compiler_min_version" |
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echo >&2 "***" |
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fi |
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# Check that the Rust bindings generator is suitable. |
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# |
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# Non-stable and distributions' versions may have a version suffix, e.g. `-dev`. |
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rust_bindings_generator_version=$( \ |
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LC_ALL=C "$BINDGEN" --version 2>/dev/null \ |
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| head -n 1 \ |
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| grep -oE '[0-9]+\.[0-9]+\.[0-9]+' \ |
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) |
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rust_bindings_generator_min_version=$($min_tool_version bindgen) |
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rust_bindings_generator_cversion=$(get_canonical_version $rust_bindings_generator_version) |
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rust_bindings_generator_min_cversion=$(get_canonical_version $rust_bindings_generator_min_version) |
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if [ "$rust_bindings_generator_cversion" -lt "$rust_bindings_generator_min_cversion" ]; then |
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if [ "$1" = -v ]; then |
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echo >&2 "***" |
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echo >&2 "*** Rust bindings generator '$BINDGEN' is too old." |
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echo >&2 "*** Your version: $rust_bindings_generator_version" |
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echo >&2 "*** Minimum version: $rust_bindings_generator_min_version" |
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echo >&2 "***" |
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fi |
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exit 1 |
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fi |
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if [ "$1" = -v ] && [ "$rust_bindings_generator_cversion" -gt "$rust_bindings_generator_min_cversion" ]; then |
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echo >&2 "***" |
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echo >&2 "*** Rust bindings generator '$BINDGEN' is too new. This may or may not work." |
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echo >&2 "*** Your version: $rust_bindings_generator_version" |
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echo >&2 "*** Expected version: $rust_bindings_generator_min_version" |
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echo >&2 "***" |
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fi |
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# Check that the `libclang` used by the Rust bindings generator is suitable. |
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bindgen_libclang_version=$( \ |
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LC_ALL=C "$BINDGEN" $(dirname $0)/rust_is_available_bindgen_libclang.h 2>&1 >/dev/null \ |
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| grep -F 'clang version ' \ |
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| grep -oE '[0-9]+\.[0-9]+\.[0-9]+' \ |
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| head -n 1 \ |
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) |
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bindgen_libclang_min_version=$($min_tool_version llvm) |
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bindgen_libclang_cversion=$(get_canonical_version $bindgen_libclang_version) |
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bindgen_libclang_min_cversion=$(get_canonical_version $bindgen_libclang_min_version) |
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if [ "$bindgen_libclang_cversion" -lt "$bindgen_libclang_min_cversion" ]; then |
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if [ "$1" = -v ]; then |
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echo >&2 "***" |
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echo >&2 "*** libclang (used by the Rust bindings generator '$BINDGEN') is too old." |
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echo >&2 "*** Your version: $bindgen_libclang_version" |
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echo >&2 "*** Minimum version: $bindgen_libclang_min_version" |
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echo >&2 "***" |
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fi |
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exit 1 |
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fi |
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# If the C compiler is Clang, then we can also check whether its version |
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# matches the `libclang` version used by the Rust bindings generator. |
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# |
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# In the future, we might be able to perform a full version check, see |
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# https://github.com/rust-lang/rust-bindgen/issues/2138. |
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if [ "$1" = -v ]; then |
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cc_name=$($(dirname $0)/cc-version.sh "$CC" | cut -f1 -d' ') |
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if [ "$cc_name" = Clang ]; then |
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clang_version=$( \ |
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LC_ALL=C "$CC" --version 2>/dev/null \ |
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| sed -nE '1s:.*version ([0-9]+\.[0-9]+\.[0-9]+).*:\1:p' |
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) |
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if [ "$clang_version" != "$bindgen_libclang_version" ]; then |
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echo >&2 "***" |
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echo >&2 "*** libclang (used by the Rust bindings generator '$BINDGEN')" |
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echo >&2 "*** version does not match Clang's. This may be a problem." |
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echo >&2 "*** libclang version: $bindgen_libclang_version" |
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echo >&2 "*** Clang version: $clang_version" |
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echo >&2 "***" |
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fi |
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fi |
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fi |
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# Check that the source code for the `core` standard library exists. |
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# |
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# `$KRUSTFLAGS` is passed in case the user added `--sysroot`. |
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rustc_sysroot=$("$RUSTC" $KRUSTFLAGS --print sysroot) |
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rustc_src=${RUST_LIB_SRC:-"$rustc_sysroot/lib/rustlib/src/rust/library"} |
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rustc_src_core="$rustc_src/core/src/lib.rs" |
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if [ ! -e "$rustc_src_core" ]; then |
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if [ "$1" = -v ]; then |
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echo >&2 "***" |
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echo >&2 "*** Source code for the 'core' standard library could not be found" |
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echo >&2 "*** at '$rustc_src_core'." |
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echo >&2 "***" |
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fi |
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exit 1 |
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fi
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