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Message-Id: <20230118160220.776302-1-varmavinaym@gmail.com>
Date: Thu, 19 Jan 2023 00:02:20 +0800
From: Vinay Varma <varmavinaym@...il.com>
To: unlisted-recipients:; (no To-header on input)
Cc: Vinay Varma <varmavinaym@...il.com>,
Masahiro Yamada <masahiroy@...nel.org>,
Michal Marek <michal.lkml@...kovi.net>,
Nick Desaulniers <ndesaulniers@...gle.com>,
Miguel Ojeda <ojeda@...nel.org>,
Alex Gaynor <alex.gaynor@...il.com>,
Wedson Almeida Filho <wedsonaf@...il.com>,
Boqun Feng <boqun.feng@...il.com>, Gary Guo <gary@...yguo.net>,
Björn Roy Baron <bjorn3_gh@...tonmail.com>,
linux-kbuild@...r.kernel.org, linux-kernel@...r.kernel.org,
rust-for-linux@...r.kernel.org
Subject: [PATCH] scripts: `make rust-analyzer` for out-of-tree modules
Adds support for out-of-tree rust modules to use the `rust-analyzer`
make target to generate the rust-project.json file.
The change involves adding an optional parameter `external_src` to the
`generate_rust_analyzer.py` which expects the path to the out-of-tree
module's source directory. When this parameter is passed, I have chosen
not to add the non-core modules (samples and drivers) into the result
since these are not expected to be used in third party modules. Related
changes are also made to the Makefile and rust/Makefile allowing the
`rust-analyzer` target to be used for out-of-tree modules as well.
Signed-off-by: Vinay Varma <varmavinaym@...il.com>
---
Makefile | 12 +++++++-----
rust/Makefile | 6 ++++--
scripts/generate_rust_analyzer.py | 14 +++++++++-----
3 files changed, 20 insertions(+), 12 deletions(-)
diff --git a/Makefile b/Makefile
index f41ec8c8426b..a055a316d2a4 100644
--- a/Makefile
+++ b/Makefile
@@ -1831,11 +1831,6 @@ rustfmt:
rustfmtcheck: rustfmt_flags = --check
rustfmtcheck: rustfmt
-# IDE support targets
-PHONY += rust-analyzer
-rust-analyzer:
- $(Q)$(MAKE) $(build)=rust $@
-
# Misc
# ---------------------------------------------------------------------------
@@ -1888,6 +1883,7 @@ help:
@echo ' modules - default target, build the module(s)'
@echo ' modules_install - install the module'
@echo ' clean - remove generated files in module directory only'
+ @echo ' rust-analyzer - generate rust-project.json rust-analyzer support file'
@echo ''
endif # KBUILD_EXTMOD
@@ -2022,6 +2018,12 @@ quiet_cmd_tags = GEN $@
tags TAGS cscope gtags: FORCE
$(call cmd,tags)
+# IDE support targets
+PHONY += rust-analyzer
+rust-analyzer:
+ $(Q)$(MAKE) $(build)=rust $@
+
+
# Script to generate missing namespace dependencies
# ---------------------------------------------------------------------------
diff --git a/rust/Makefile b/rust/Makefile
index 8f598a904f38..41c1435cd8d4 100644
--- a/rust/Makefile
+++ b/rust/Makefile
@@ -389,8 +389,10 @@ quiet_cmd_rustc_library = $(if $(skip_clippy),RUSTC,$(RUSTC_OR_CLIPPY_QUIET)) L
$(if $(rustc_objcopy),;$(OBJCOPY) $(rustc_objcopy) $@)
rust-analyzer:
- $(Q)$(srctree)/scripts/generate_rust_analyzer.py $(srctree) $(objtree) \
- $(RUST_LIB_SRC) > $(objtree)/rust-project.json
+ $(Q)$(srctree)/scripts/generate_rust_analyzer.py \
+ $(abs_srctree) $(abs_objtree) \
+ $(RUST_LIB_SRC) $(KBUILD_EXTMOD) > \
+ $(if $(KBUILD_EXTMOD),$(extmod_prefix),$(objtree))/rust-project.json
$(obj)/core.o: private skip_clippy = 1
$(obj)/core.o: private skip_flags = -Dunreachable_pub
diff --git a/scripts/generate_rust_analyzer.py b/scripts/generate_rust_analyzer.py
index ecc7ea9a4dcf..1546b80db554 100755
--- a/scripts/generate_rust_analyzer.py
+++ b/scripts/generate_rust_analyzer.py
@@ -8,8 +8,9 @@ import json
import logging
import pathlib
import sys
+import os
-def generate_crates(srctree, objtree, sysroot_src):
+def generate_crates(srctree, objtree, sysroot_src, external_src):
# Generate the configuration list.
cfg = []
with open(objtree / "include" / "generated" / "rustc_cfg") as fd:
@@ -65,7 +66,7 @@ def generate_crates(srctree, objtree, sysroot_src):
[],
is_proc_macro=True,
)
- crates[-1]["proc_macro_dylib_path"] = "rust/libmacros.so"
+ crates[-1]["proc_macro_dylib_path"] = f"{objtree}/rust/libmacros.so"
append_crate(
"build_error",
@@ -98,13 +99,15 @@ def generate_crates(srctree, objtree, sysroot_src):
# Then, the rest outside of `rust/`.
#
# We explicitly mention the top-level folders we want to cover.
- for folder in ("samples", "drivers"):
+ extra_src_dirs = ["samples", "drivers"] if external_src is None else [external_src]
+
+ for folder in extra_src_dirs:
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():
+ if os.path.exists(path.parent / "Makefile") and f"{name}.o" not in open(path.parent / "Makefile").read():
continue
logging.info("Adding %s", name)
@@ -123,6 +126,7 @@ def main():
parser.add_argument("srctree", type=pathlib.Path)
parser.add_argument("objtree", type=pathlib.Path)
parser.add_argument("sysroot_src", type=pathlib.Path)
+ parser.add_argument("exttree", type=pathlib.Path, nargs='?')
args = parser.parse_args()
logging.basicConfig(
@@ -131,7 +135,7 @@ def main():
)
rust_project = {
- "crates": generate_crates(args.srctree, args.objtree, args.sysroot_src),
+ "crates": generate_crates(args.srctree, args.objtree, args.sysroot_src, args.exttree),
"sysroot_src": str(args.sysroot_src),
}
--
2.39.0
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