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kbuild: rust_is_available: normalize version matching

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[ Upstream commit 7cd6a3e1f9 ]

In order to match the version string, `sed` is used in a couple
cases, and `grep` and `head` in a couple others.

Make the script more consistent and easier to understand by
using the same method, `sed`, for all of them.

This makes the version matching also a bit more strict for
the changed cases, since the strings `rustc ` and `bindgen `
will now be required, which should be fine since `rustc`
complains if one attempts to call it with another program
name, and `bindgen` uses a hardcoded string.

In addition, clarify why one of the existing `sed` commands
does not provide an address like the others.

Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Reviewed-by: Masahiro Yamada <masahiroy@kernel.org>
Reviewed-by: Martin Rodriguez Reboredo <yakoyoku@gmail.com>
Link: https://lore.kernel.org/r/20230616001631.463536-9-ojeda@kernel.org
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
Stable-dep-of: 5ce86c6c8613 ("rust: suppress error messages from CONFIG_{RUSTC,BINDGEN}_VERSION_TEXT")
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Miguel Ojeda
2023-06-16 02:16:28 +02:00
committed by Greg Kroah-Hartman
parent 1ba15435a6
commit c527858f18
1 changed files with 5 additions and 4 deletions
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9
scripts/rust_is_available.sh
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@@ -40,8 +40,7 @@ fi
# Non-stable and distributions' versions may have a version suffix, e.g. `-dev`.
rust_compiler_version=$( \
LC_ALL=C "$RUSTC" --version 2>/dev/null \
| head -n 1 \
| grep -oE '[0-9]+\.[0-9]+\.[0-9]+' \
| sed -nE '1s:.*rustc ([0-9]+\.[0-9]+\.[0-9]+).*:\1:p'
)
rust_compiler_min_version=$($min_tool_version rustc)
rust_compiler_cversion=$(get_canonical_version $rust_compiler_version)
@@ -67,8 +66,7 @@ fi
# Non-stable and distributions' versions may have a version suffix, e.g. `-dev`.
rust_bindings_generator_version=$( \
LC_ALL=C "$BINDGEN" --version 2>/dev/null \
| head -n 1 \
| grep -oE '[0-9]+\.[0-9]+\.[0-9]+' \
| sed -nE '1s:.*bindgen ([0-9]+\.[0-9]+\.[0-9]+).*:\1:p'
)
rust_bindings_generator_min_version=$($min_tool_version bindgen)
rust_bindings_generator_cversion=$(get_canonical_version $rust_bindings_generator_version)
@@ -110,6 +108,9 @@ fi
# `bindgen` returned successfully, thus use the output to check that the version
# of the `libclang` found by the Rust bindings generator is suitable.
#
# Unlike other version checks, note that this one does not necessarily appear
# in the first line of the output, thus no `sed` address is provided.
bindgen_libclang_version=$( \
echo "$bindgen_libclang_output" \
| sed -nE 's:.*clang version ([0-9]+\.[0-9]+\.[0-9]+).*:\1:p'