mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-25 13:14:07 +08:00
ecaa6ddff2
The `build_error` crate provides a function `build_error` which will panic at compile-time if executed in const context and, by default, will cause a build error if not executed at compile time and the optimizer does not optimise away the call. The `CONFIG_RUST_BUILD_ASSERT_ALLOW` kernel option allows to relax the default build failure and convert it to a runtime check. If the runtime check fails, `panic!` will be called. Its functionality will be exposed to users as a couple macros in the `kernel` crate in the following patch, thus some documentation here refers to them for simplicity. Signed-off-by: Gary Guo <gary@garyguo.net> Reviewed-by: Wei Liu <wei.liu@kernel.org> [Reworded, adapted for upstream and applied latest changes] Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
142 lines
4.0 KiB
Python
Executable File
142 lines
4.0 KiB
Python
Executable File
#!/usr/bin/env python3
|
|
# SPDX-License-Identifier: GPL-2.0
|
|
"""generate_rust_analyzer - Generates the `rust-project.json` file for `rust-analyzer`.
|
|
"""
|
|
|
|
import argparse
|
|
import json
|
|
import logging
|
|
import pathlib
|
|
import sys
|
|
|
|
def generate_crates(srctree, objtree, sysroot_src):
|
|
# Generate the configuration list.
|
|
cfg = []
|
|
with open(objtree / "include" / "generated" / "rustc_cfg") as fd:
|
|
for line in fd:
|
|
line = line.replace("--cfg=", "")
|
|
line = line.replace("\n", "")
|
|
cfg.append(line)
|
|
|
|
# Now fill the crates list -- dependencies need to come first.
|
|
#
|
|
# Avoid O(n^2) iterations by keeping a map of indexes.
|
|
crates = []
|
|
crates_indexes = {}
|
|
|
|
def append_crate(display_name, root_module, deps, cfg=[], is_workspace_member=True, is_proc_macro=False):
|
|
crates_indexes[display_name] = len(crates)
|
|
crates.append({
|
|
"display_name": display_name,
|
|
"root_module": str(root_module),
|
|
"is_workspace_member": is_workspace_member,
|
|
"is_proc_macro": is_proc_macro,
|
|
"deps": [{"crate": crates_indexes[dep], "name": dep} for dep in deps],
|
|
"cfg": cfg,
|
|
"edition": "2021",
|
|
"env": {
|
|
"RUST_MODFILE": "This is only for rust-analyzer"
|
|
}
|
|
})
|
|
|
|
# First, the ones in `rust/` since they are a bit special.
|
|
append_crate(
|
|
"core",
|
|
sysroot_src / "core" / "src" / "lib.rs",
|
|
[],
|
|
is_workspace_member=False,
|
|
)
|
|
|
|
append_crate(
|
|
"compiler_builtins",
|
|
srctree / "rust" / "compiler_builtins.rs",
|
|
[],
|
|
)
|
|
|
|
append_crate(
|
|
"alloc",
|
|
srctree / "rust" / "alloc" / "lib.rs",
|
|
["core", "compiler_builtins"],
|
|
)
|
|
|
|
append_crate(
|
|
"macros",
|
|
srctree / "rust" / "macros" / "lib.rs",
|
|
[],
|
|
is_proc_macro=True,
|
|
)
|
|
crates[-1]["proc_macro_dylib_path"] = "rust/libmacros.so"
|
|
|
|
append_crate(
|
|
"build_error",
|
|
srctree / "rust" / "build_error.rs",
|
|
["core", "compiler_builtins"],
|
|
)
|
|
|
|
append_crate(
|
|
"bindings",
|
|
srctree / "rust"/ "bindings" / "lib.rs",
|
|
["core"],
|
|
cfg=cfg,
|
|
)
|
|
crates[-1]["env"]["OBJTREE"] = str(objtree.resolve(True))
|
|
|
|
append_crate(
|
|
"kernel",
|
|
srctree / "rust" / "kernel" / "lib.rs",
|
|
["core", "alloc", "macros", "build_error", "bindings"],
|
|
cfg=cfg,
|
|
)
|
|
crates[-1]["source"] = {
|
|
"include_dirs": [
|
|
str(srctree / "rust" / "kernel"),
|
|
str(objtree / "rust")
|
|
],
|
|
"exclude_dirs": [],
|
|
}
|
|
|
|
# Then, the rest outside of `rust/`.
|
|
#
|
|
# We explicitly mention the top-level folders we want to cover.
|
|
for folder in ("samples", "drivers"):
|
|
for path in (srctree / folder).rglob("*.rs"):
|
|
logging.info("Checking %s", path)
|
|
name = path.name.replace(".rs", "")
|
|
|
|
# Skip those that are not crate roots.
|
|
if f"{name}.o" not in open(path.parent / "Makefile").read():
|
|
continue
|
|
|
|
logging.info("Adding %s", name)
|
|
append_crate(
|
|
name,
|
|
path,
|
|
["core", "alloc", "kernel"],
|
|
cfg=cfg,
|
|
)
|
|
|
|
return crates
|
|
|
|
def main():
|
|
parser = argparse.ArgumentParser()
|
|
parser.add_argument('--verbose', '-v', action='store_true')
|
|
parser.add_argument("srctree", type=pathlib.Path)
|
|
parser.add_argument("objtree", type=pathlib.Path)
|
|
parser.add_argument("sysroot_src", type=pathlib.Path)
|
|
args = parser.parse_args()
|
|
|
|
logging.basicConfig(
|
|
format="[%(asctime)s] [%(levelname)s] %(message)s",
|
|
level=logging.INFO if args.verbose else logging.WARNING
|
|
)
|
|
|
|
rust_project = {
|
|
"crates": generate_crates(args.srctree, args.objtree, args.sysroot_src),
|
|
"sysroot_src": str(args.sysroot_src),
|
|
}
|
|
|
|
json.dump(rust_project, sys.stdout, sort_keys=True, indent=4)
|
|
|
|
if __name__ == "__main__":
|
|
main()
|