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Date: Mon, 9 Jan 2023 10:10:52 -0700
From: Nathan Chancellor <nathan@...nel.org>
To: Masahiro Yamada <masahiroy@...nel.org>
Cc: linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org,
Miguel Ojeda <ojeda@...nel.org>,
Alex Gaynor <alex.gaynor@...il.com>,
Björn Roy Baron <bjorn3_gh@...tonmail.com>,
Boqun Feng <boqun.feng@...il.com>, Gary Guo <gary@...yguo.net>,
Nick Desaulniers <ndesaulniers@...gle.com>,
Nicolas Schier <nicolas@...sle.eu>, Tom Rix <trix@...hat.com>,
Wedson Almeida Filho <wedsonaf@...il.com>,
llvm@...ts.linux.dev, rust-for-linux@...r.kernel.org
Subject: Re: [PATCH v2] kbuild: rust: remove -v option of
scripts/rust_is_available.sh
On Mon, Jan 09, 2023 at 03:14:36PM +0900, Masahiro Yamada wrote:
> The -v option is passed when this script is invoked from Makefile,
> but not when invoked from Kconfig.
>
> As you can see in scripts/Kconfig.include, the 'success' macro suppresses
> stdout and stderr anyway, so this script does not need to be quiet.
>
> Signed-off-by: Masahiro Yamada <masahiroy@...nel.org>
> Reviewed-by: Miguel Ojeda <ojeda@...nel.org>
> Tested-by: Miguel Ojeda <ojeda@...nel.org>
Reviewed-by: Nathan Chancellor <nathan@...nel.org>
> ---
>
> Changes in v2:
> - Fix description (scripts -> script)
> - Remove stale comment
>
> Makefile | 4 +-
> scripts/rust_is_available.sh | 96 +++++++++++++++---------------------
> 2 files changed, 42 insertions(+), 58 deletions(-)
>
> diff --git a/Makefile b/Makefile
> index c1f59f54ae90..59d827b85888 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -1288,7 +1288,7 @@ prepare0: archprepare
> # All the preparing..
> prepare: prepare0
> ifdef CONFIG_RUST
> - $(Q)$(CONFIG_SHELL) $(srctree)/scripts/rust_is_available.sh -v
> + $(Q)$(CONFIG_SHELL) $(srctree)/scripts/rust_is_available.sh
> $(Q)$(MAKE) $(build)=rust
> endif
>
> @@ -1813,7 +1813,7 @@ $(DOC_TARGETS):
> # "Is Rust available?" target
> PHONY += rustavailable
> rustavailable:
> - $(Q)$(CONFIG_SHELL) $(srctree)/scripts/rust_is_available.sh -v && echo "Rust is available!"
> + $(Q)$(CONFIG_SHELL) $(srctree)/scripts/rust_is_available.sh && echo "Rust is available!"
>
> # Documentation target
> #
> diff --git a/scripts/rust_is_available.sh b/scripts/rust_is_available.sh
> index aebbf1913970..f43a010eaf30 100755
> --- a/scripts/rust_is_available.sh
> +++ b/scripts/rust_is_available.sh
> @@ -2,8 +2,6 @@
> # SPDX-License-Identifier: GPL-2.0
> #
> # Tests whether a suitable Rust toolchain is available.
> -#
> -# Pass `-v` for human output and more checks (as warnings).
>
> set -e
>
> @@ -23,21 +21,17 @@ get_canonical_version()
>
> # Check that the Rust compiler exists.
> if ! command -v "$RUSTC" >/dev/null; then
> - if [ "$1" = -v ]; then
> - echo >&2 "***"
> - echo >&2 "*** Rust compiler '$RUSTC' could not be found."
> - echo >&2 "***"
> - fi
> + echo >&2 "***"
> + echo >&2 "*** Rust compiler '$RUSTC' could not be found."
> + echo >&2 "***"
> exit 1
> fi
>
> # Check that the Rust bindings generator exists.
> if ! command -v "$BINDGEN" >/dev/null; then
> - if [ "$1" = -v ]; then
> - echo >&2 "***"
> - echo >&2 "*** Rust bindings generator '$BINDGEN' could not be found."
> - echo >&2 "***"
> - fi
> + echo >&2 "***"
> + echo >&2 "*** Rust bindings generator '$BINDGEN' could not be found."
> + echo >&2 "***"
> exit 1
> fi
>
> @@ -53,16 +47,14 @@ rust_compiler_min_version=$($min_tool_version rustc)
> rust_compiler_cversion=$(get_canonical_version $rust_compiler_version)
> rust_compiler_min_cversion=$(get_canonical_version $rust_compiler_min_version)
> if [ "$rust_compiler_cversion" -lt "$rust_compiler_min_cversion" ]; then
> - if [ "$1" = -v ]; then
> - echo >&2 "***"
> - echo >&2 "*** Rust compiler '$RUSTC' is too old."
> - echo >&2 "*** Your version: $rust_compiler_version"
> - echo >&2 "*** Minimum version: $rust_compiler_min_version"
> - echo >&2 "***"
> - fi
> + echo >&2 "***"
> + echo >&2 "*** Rust compiler '$RUSTC' is too old."
> + echo >&2 "*** Your version: $rust_compiler_version"
> + echo >&2 "*** Minimum version: $rust_compiler_min_version"
> + echo >&2 "***"
> exit 1
> fi
> -if [ "$1" = -v ] && [ "$rust_compiler_cversion" -gt "$rust_compiler_min_cversion" ]; then
> +if [ "$rust_compiler_cversion" -gt "$rust_compiler_min_cversion" ]; then
> echo >&2 "***"
> echo >&2 "*** Rust compiler '$RUSTC' is too new. This may or may not work."
> echo >&2 "*** Your version: $rust_compiler_version"
> @@ -82,16 +74,14 @@ rust_bindings_generator_min_version=$($min_tool_version bindgen)
> rust_bindings_generator_cversion=$(get_canonical_version $rust_bindings_generator_version)
> rust_bindings_generator_min_cversion=$(get_canonical_version $rust_bindings_generator_min_version)
> if [ "$rust_bindings_generator_cversion" -lt "$rust_bindings_generator_min_cversion" ]; then
> - if [ "$1" = -v ]; then
> - echo >&2 "***"
> - echo >&2 "*** Rust bindings generator '$BINDGEN' is too old."
> - echo >&2 "*** Your version: $rust_bindings_generator_version"
> - echo >&2 "*** Minimum version: $rust_bindings_generator_min_version"
> - echo >&2 "***"
> - fi
> + echo >&2 "***"
> + echo >&2 "*** Rust bindings generator '$BINDGEN' is too old."
> + echo >&2 "*** Your version: $rust_bindings_generator_version"
> + echo >&2 "*** Minimum version: $rust_bindings_generator_min_version"
> + echo >&2 "***"
> exit 1
> fi
> -if [ "$1" = -v ] && [ "$rust_bindings_generator_cversion" -gt "$rust_bindings_generator_min_cversion" ]; then
> +if [ "$rust_bindings_generator_cversion" -gt "$rust_bindings_generator_min_cversion" ]; then
> echo >&2 "***"
> echo >&2 "*** Rust bindings generator '$BINDGEN' is too new. This may or may not work."
> echo >&2 "*** Your version: $rust_bindings_generator_version"
> @@ -110,13 +100,11 @@ bindgen_libclang_min_version=$($min_tool_version llvm)
> bindgen_libclang_cversion=$(get_canonical_version $bindgen_libclang_version)
> bindgen_libclang_min_cversion=$(get_canonical_version $bindgen_libclang_min_version)
> if [ "$bindgen_libclang_cversion" -lt "$bindgen_libclang_min_cversion" ]; then
> - if [ "$1" = -v ]; then
> - echo >&2 "***"
> - echo >&2 "*** libclang (used by the Rust bindings generator '$BINDGEN') is too old."
> - echo >&2 "*** Your version: $bindgen_libclang_version"
> - echo >&2 "*** Minimum version: $bindgen_libclang_min_version"
> - echo >&2 "***"
> - fi
> + echo >&2 "***"
> + echo >&2 "*** libclang (used by the Rust bindings generator '$BINDGEN') is too old."
> + echo >&2 "*** Your version: $bindgen_libclang_version"
> + echo >&2 "*** Minimum version: $bindgen_libclang_min_version"
> + echo >&2 "***"
> exit 1
> fi
>
> @@ -125,21 +113,19 @@ fi
> #
> # In the future, we might be able to perform a full version check, see
> # https://github.com/rust-lang/rust-bindgen/issues/2138.
> -if [ "$1" = -v ]; then
> - cc_name=$($(dirname $0)/cc-version.sh "$CC" | cut -f1 -d' ')
> - if [ "$cc_name" = Clang ]; then
> - clang_version=$( \
> - LC_ALL=C "$CC" --version 2>/dev/null \
> - | sed -nE '1s:.*version ([0-9]+\.[0-9]+\.[0-9]+).*:\1:p'
> - )
> - if [ "$clang_version" != "$bindgen_libclang_version" ]; then
> - echo >&2 "***"
> - echo >&2 "*** libclang (used by the Rust bindings generator '$BINDGEN')"
> - echo >&2 "*** version does not match Clang's. This may be a problem."
> - echo >&2 "*** libclang version: $bindgen_libclang_version"
> - echo >&2 "*** Clang version: $clang_version"
> - echo >&2 "***"
> - fi
> +cc_name=$($(dirname $0)/cc-version.sh "$CC" | cut -f1 -d' ')
> +if [ "$cc_name" = Clang ]; then
> + clang_version=$( \
> + LC_ALL=C "$CC" --version 2>/dev/null \
> + | sed -nE '1s:.*version ([0-9]+\.[0-9]+\.[0-9]+).*:\1:p'
> + )
> + if [ "$clang_version" != "$bindgen_libclang_version" ]; then
> + echo >&2 "***"
> + echo >&2 "*** libclang (used by the Rust bindings generator '$BINDGEN')"
> + echo >&2 "*** version does not match Clang's. This may be a problem."
> + echo >&2 "*** libclang version: $bindgen_libclang_version"
> + echo >&2 "*** Clang version: $clang_version"
> + echo >&2 "***"
> fi
> fi
>
> @@ -150,11 +136,9 @@ rustc_sysroot=$("$RUSTC" $KRUSTFLAGS --print sysroot)
> rustc_src=${RUST_LIB_SRC:-"$rustc_sysroot/lib/rustlib/src/rust/library"}
> rustc_src_core="$rustc_src/core/src/lib.rs"
> if [ ! -e "$rustc_src_core" ]; then
> - if [ "$1" = -v ]; then
> - echo >&2 "***"
> - echo >&2 "*** Source code for the 'core' standard library could not be found"
> - echo >&2 "*** at '$rustc_src_core'."
> - echo >&2 "***"
> - fi
> + echo >&2 "***"
> + echo >&2 "*** Source code for the 'core' standard library could not be found"
> + echo >&2 "*** at '$rustc_src_core'."
> + echo >&2 "***"
> exit 1
> fi
> --
> 2.34.1
>
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