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Daniel Xu
e4b69cb9a9
This script is used to detect whether a kernel module is written in Rust. It will later be used to disable BTF generation on Rust modules as BTF does not yet support Rust. Reviewed-by: Kees Cook <[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: Wedson Almeida Filho <[email protected]> Signed-off-by: Wedson Almeida Filho <[email protected]> Signed-off-by: Daniel Xu <[email protected]> Co-developed-by: Miguel Ojeda <[email protected]> Signed-off-by: Miguel Ojeda <[email protected]>
17 lines
565 B
Bash
Executable File
17 lines
565 B
Bash
Executable File
#!/bin/sh
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# SPDX-License-Identifier: GPL-2.0
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#
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# is_rust_module.sh module.ko
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#
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# Returns `0` if `module.ko` is a Rust module, `1` otherwise.
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set -e
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# Using the `16_` prefix ensures other symbols with the same substring
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# are not picked up (even if it would be unlikely). The last part is
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# used just in case LLVM decides to use the `.` suffix.
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#
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# In the future, checking for the `.comment` section may be another
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# option, see https://github.com/rust-lang/rust/pull/97550.
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${NM} "$*" | grep -qE '^[0-9a-fA-F]+ r _R[^[:space:]]+16___IS_RUST_MODULE[^[:space:]]*$'
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