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More complex drivers might want to use modules to organize their Rust code, but those module folders do not need a Makefile. generate_rust_analyzer.py currently crashes on those. Fix it so that a missing Makefile is silently ignored. Link: https://github.com/Rust-for-Linux/linux/pull/883 Signed-off-by: Asahi Lina <lina@asahilina.net> Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
144 lines
4 KiB
Python
Executable file
144 lines
4 KiB
Python
Executable file
#!/usr/bin/env python3
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# SPDX-License-Identifier: GPL-2.0
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"""generate_rust_analyzer - Generates the `rust-project.json` file for `rust-analyzer`.
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"""
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import argparse
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import json
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import logging
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import pathlib
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import sys
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def generate_crates(srctree, objtree, sysroot_src):
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# Generate the configuration list.
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cfg = []
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with open(objtree / "include" / "generated" / "rustc_cfg") as fd:
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for line in fd:
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line = line.replace("--cfg=", "")
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line = line.replace("\n", "")
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cfg.append(line)
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# Now fill the crates list -- dependencies need to come first.
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#
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# Avoid O(n^2) iterations by keeping a map of indexes.
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crates = []
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crates_indexes = {}
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def append_crate(display_name, root_module, deps, cfg=[], is_workspace_member=True, is_proc_macro=False):
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crates_indexes[display_name] = len(crates)
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crates.append({
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"display_name": display_name,
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"root_module": str(root_module),
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"is_workspace_member": is_workspace_member,
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"is_proc_macro": is_proc_macro,
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"deps": [{"crate": crates_indexes[dep], "name": dep} for dep in deps],
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"cfg": cfg,
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"edition": "2021",
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"env": {
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"RUST_MODFILE": "This is only for rust-analyzer"
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}
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})
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# First, the ones in `rust/` since they are a bit special.
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append_crate(
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"core",
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sysroot_src / "core" / "src" / "lib.rs",
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[],
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is_workspace_member=False,
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)
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append_crate(
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"compiler_builtins",
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srctree / "rust" / "compiler_builtins.rs",
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[],
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)
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append_crate(
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"alloc",
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srctree / "rust" / "alloc" / "lib.rs",
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["core", "compiler_builtins"],
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)
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append_crate(
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"macros",
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srctree / "rust" / "macros" / "lib.rs",
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[],
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is_proc_macro=True,
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)
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crates[-1]["proc_macro_dylib_path"] = "rust/libmacros.so"
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append_crate(
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"build_error",
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srctree / "rust" / "build_error.rs",
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["core", "compiler_builtins"],
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)
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append_crate(
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"bindings",
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srctree / "rust"/ "bindings" / "lib.rs",
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["core"],
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cfg=cfg,
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)
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crates[-1]["env"]["OBJTREE"] = str(objtree.resolve(True))
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append_crate(
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"kernel",
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srctree / "rust" / "kernel" / "lib.rs",
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["core", "alloc", "macros", "build_error", "bindings"],
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cfg=cfg,
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)
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crates[-1]["source"] = {
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"include_dirs": [
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str(srctree / "rust" / "kernel"),
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str(objtree / "rust")
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],
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"exclude_dirs": [],
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}
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# Then, the rest outside of `rust/`.
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#
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# We explicitly mention the top-level folders we want to cover.
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for folder in ("samples", "drivers"):
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for path in (srctree / folder).rglob("*.rs"):
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logging.info("Checking %s", path)
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name = path.name.replace(".rs", "")
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# Skip those that are not crate roots.
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try:
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if f"{name}.o" not in open(path.parent / "Makefile").read():
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continue
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except FileNotFoundError:
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continue
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logging.info("Adding %s", name)
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append_crate(
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name,
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path,
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["core", "alloc", "kernel"],
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cfg=cfg,
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)
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return crates
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def main():
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parser = argparse.ArgumentParser()
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parser.add_argument('--verbose', '-v', action='store_true')
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parser.add_argument("srctree", type=pathlib.Path)
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parser.add_argument("objtree", type=pathlib.Path)
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parser.add_argument("sysroot_src", type=pathlib.Path)
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args = parser.parse_args()
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logging.basicConfig(
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format="[%(asctime)s] [%(levelname)s] %(message)s",
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level=logging.INFO if args.verbose else logging.WARNING
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)
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rust_project = {
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"crates": generate_crates(args.srctree, args.objtree, args.sysroot_src),
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"sysroot_src": str(args.sysroot_src),
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}
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json.dump(rust_project, sys.stdout, sort_keys=True, indent=4)
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if __name__ == "__main__":
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main()
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