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Each version of Rust supports a range of LLVM versions. There are cases where we want to gate a config on the LLVM version instead of the Rust version. Normalized cfi integer tags are one example [1]. The invocation of rustc-version is being moved from init/Kconfig to scripts/Kconfig.include for consistency with cc-version. Link: https://lore.kernel.org/all/20240925-cfi-norm-kasan-fix-v1-1-0328985cdf33@google.com/ [1] Signed-off-by: Gary Guo <gary@garyguo.net> Link: https://lore.kernel.org/r/20241011114040.3900487-1-gary@garyguo.net [ Added missing `-llvm` to the Usage documentation. - Miguel ] Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
23 lines
453 B
Bash
Executable File
23 lines
453 B
Bash
Executable File
#!/bin/sh
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# SPDX-License-Identifier: GPL-2.0
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#
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# Usage: $ ./rustc-llvm-version.sh rustc
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#
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# Print the LLVM version that the Rust compiler uses in a 6 digit form.
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# Convert the version string x.y.z to a canonical up-to-6-digits form.
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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 $((10000 * $1 + 100 * $2 + $3))
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}
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if output=$("$@" --version --verbose 2>/dev/null | grep LLVM); then
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set -- $output
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get_canonical_version $3
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else
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echo 0
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exit 1
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fi
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