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rust: start supporting several bindgen versions

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With both the workaround for `bindgen` 0.69.0 and the warning about
0.66.0 and 0.66.1 in place, start supporting several `bindgen` versions,
like it was done for the Rust compiler in a previous patch.

All other versions, including the latest 0.69.4, build without errors.

The `bindgen` project, like Rust, has also agreed to have the kernel
in their CI [1] -- thanks! This should help both projects: `bindgen`
will be able to detect early issues like those mentioned above, and the
kernel will be very likely build with new releases (at least for the
basic configuration being tested).

Link: https://github.com/rust-lang/rust-bindgen/pull/2851 [1]
Tested-by: Benno Lossin <benno.lossin@proton.me>
Tested-by: Andreas Hindborg <a.hindborg@samsung.com>
Link: https://lore.kernel.org/r/20240709160615.998336-10-ojeda@kernel.org
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
This commit is contained in:
Miguel Ojeda 2024-07-09 18:06:04 +02:00
parent 9e98db1783
commit c844fa64a2
3 changed files with 4 additions and 16 deletions
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7
Documentation/rust/quick-start.rst
View File

@ -107,11 +107,12 @@ bindgen
******* *******
The bindings to the C side of the kernel are generated at build time using The bindings to the C side of the kernel are generated at build time using
the ``bindgen`` tool. A particular version is required. the ``bindgen`` tool.
Install it via (note that this will download and build the tool from source):: Install it, for instance, via (note that this will download and build the tool
from source)::
cargo install --locked --version $(scripts/min-tool-version.sh bindgen) bindgen-cli cargo install --locked bindgen-cli
``bindgen`` uses the ``clang-sys`` crate to find a suitable ``libclang`` (which ``bindgen`` uses the ``clang-sys`` crate to find a suitable ``libclang`` (which
may be linked statically, dynamically or loaded at runtime). By default, the may be linked statically, dynamically or loaded at runtime). By default, the

8
scripts/rust_is_available.sh
View File

@ -161,14 +161,6 @@ if [ "$rust_bindings_generator_cversion" -lt "$rust_bindings_generator_min_cvers
echo >&2 "***" echo >&2 "***"
exit 1 exit 1
fi fi
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"
echo >&2 "*** Expected version: $rust_bindings_generator_min_version"
echo >&2 "***"
warning=1
fi
# Check that the `libclang` used by the Rust bindings generator is suitable. # Check that the `libclang` used by the Rust bindings generator is suitable.
# #

5
scripts/rust_is_available_test.py
View File

@ -231,11 +231,6 @@ else:
result = self.run_script(self.Expected.FAILURE, { "BINDGEN": bindgen }) result = self.run_script(self.Expected.FAILURE, { "BINDGEN": bindgen })
self.assertIn(f"Rust bindings generator '{bindgen}' is too old.", result.stderr) self.assertIn(f"Rust bindings generator '{bindgen}' is too old.", result.stderr)
def test_bindgen_new_version(self):
bindgen = self.generate_bindgen_version("bindgen 0.999.0")
result = self.run_script(self.Expected.SUCCESS_WITH_WARNINGS, { "BINDGEN": bindgen })
self.assertIn(f"Rust bindings generator '{bindgen}' is too new. This may or may not work.", result.stderr)
def test_bindgen_libclang_failure(self): def test_bindgen_libclang_failure(self):
bindgen = self.generate_bindgen_libclang_failure() bindgen = self.generate_bindgen_libclang_failure()
result = self.run_script(self.Expected.FAILURE, { "BINDGEN": bindgen }) result = self.run_script(self.Expected.FAILURE, { "BINDGEN": bindgen })