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author | Manos Pitsidianakis <manos.pitsidianakis@linaro.org> | 2024-10-03 16:28:46 +0300 |
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committer | Paolo Bonzini <pbonzini@redhat.com> | 2024-10-11 12:32:17 +0200 |
commit | 6fdc5bc173188f5e4942616b16d589500b874a15 (patch) | |
tree | ab2a3691286b9d463728100c45bddc5e7b271c4d /scripts | |
parent | 1a6ef6ff624f0e485bf17210ad34d387a953b288 (diff) | |
download | qemu-6fdc5bc173188f5e4942616b16d589500b874a15.zip qemu-6fdc5bc173188f5e4942616b16d589500b874a15.tar.gz qemu-6fdc5bc173188f5e4942616b16d589500b874a15.tar.bz2 |
rust: add bindgen step as a meson dependency
Add bindings_rs target for generating rust bindings to target-independent
qemu C APIs.
The bindings need be created before any rust crate that uses them is
compiled.
The bindings.rs file will end up in BUILDDIR/bindings.rs and have the
same name as a target:
ninja bindings.rs
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
Link: https://lore.kernel.org/r/1be89a27719049b7203eaf2eca8bbb75b33f18d4.1727961605.git.manos.pitsidianakis@linaro.org
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'scripts')
-rw-r--r-- | scripts/rust/rustc_args.py | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/scripts/rust/rustc_args.py b/scripts/rust/rustc_args.py new file mode 100644 index 0000000..e4cc972 --- /dev/null +++ b/scripts/rust/rustc_args.py @@ -0,0 +1,84 @@ +#!/usr/bin/env python3 + +"""Generate rustc arguments for meson rust builds. + +This program generates --cfg compile flags for the configuration headers passed +as arguments. + +Copyright (c) 2024 Linaro Ltd. + +Authors: + Manos Pitsidianakis <manos.pitsidianakis@linaro.org> + +This program is free software; you can redistribute it and/or modify +it under the terms of the GNU General Public License as published by +the Free Software Foundation; either version 2 of the License, or +(at your option) any later version. + +This program is distributed in the hope that it will be useful, +but WITHOUT ANY WARRANTY; without even the implied warranty of +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program. If not, see <http://www.gnu.org/licenses/>. +""" + +import argparse +import logging + +from typing import List + + +def generate_cfg_flags(header: str) -> List[str]: + """Converts defines from config[..].h headers to rustc --cfg flags.""" + + def cfg_name(name: str) -> str: + """Filter function for C #defines""" + if ( + name.startswith("CONFIG_") + or name.startswith("TARGET_") + or name.startswith("HAVE_") + ): + return name + return "" + + with open(header, encoding="utf-8") as cfg: + config = [l.split()[1:] for l in cfg if l.startswith("#define")] + + cfg_list = [] + for cfg in config: + name = cfg_name(cfg[0]) + if not name: + continue + if len(cfg) >= 2 and cfg[1] != "1": + continue + cfg_list.append("--cfg") + cfg_list.append(name) + return cfg_list + + +def main() -> None: + # pylint: disable=missing-function-docstring + parser = argparse.ArgumentParser() + parser.add_argument("-v", "--verbose", action="store_true") + parser.add_argument( + "--config-headers", + metavar="CONFIG_HEADER", + action="append", + dest="config_headers", + help="paths to any configuration C headers (*.h files), if any", + required=False, + default=[], + ) + args = parser.parse_args() + if args.verbose: + logging.basicConfig(level=logging.DEBUG) + logging.debug("args: %s", args) + for header in args.config_headers: + for tok in generate_cfg_flags(header): + print(tok) + + +if __name__ == "__main__": + main() |