6fdc5bc173
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>
85 lines
2.4 KiB
Python
85 lines
2.4 KiB
Python
#!/usr/bin/env python3
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"""Generate rustc arguments for meson rust builds.
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This program generates --cfg compile flags for the configuration headers passed
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as arguments.
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Copyright (c) 2024 Linaro Ltd.
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Authors:
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Manos Pitsidianakis <manos.pitsidianakis@linaro.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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"""
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import argparse
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import logging
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from typing import List
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def generate_cfg_flags(header: str) -> List[str]:
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"""Converts defines from config[..].h headers to rustc --cfg flags."""
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def cfg_name(name: str) -> str:
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"""Filter function for C #defines"""
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if (
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name.startswith("CONFIG_")
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or name.startswith("TARGET_")
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or name.startswith("HAVE_")
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):
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return name
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return ""
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with open(header, encoding="utf-8") as cfg:
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config = [l.split()[1:] for l in cfg if l.startswith("#define")]
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cfg_list = []
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for cfg in config:
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name = cfg_name(cfg[0])
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if not name:
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continue
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if len(cfg) >= 2 and cfg[1] != "1":
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continue
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cfg_list.append("--cfg")
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cfg_list.append(name)
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return cfg_list
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def main() -> None:
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# pylint: disable=missing-function-docstring
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parser = argparse.ArgumentParser()
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parser.add_argument("-v", "--verbose", action="store_true")
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parser.add_argument(
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"--config-headers",
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metavar="CONFIG_HEADER",
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action="append",
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dest="config_headers",
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help="paths to any configuration C headers (*.h files), if any",
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required=False,
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default=[],
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)
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args = parser.parse_args()
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if args.verbose:
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logging.basicConfig(level=logging.DEBUG)
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logging.debug("args: %s", args)
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for header in args.config_headers:
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for tok in generate_cfg_flags(header):
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print(tok)
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if __name__ == "__main__":
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main()
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