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authorMiguel Ojeda <ojeda@kernel.org>2025-07-26 15:34:35 +0200
committerMiguel Ojeda <ojeda@kernel.org>2025-08-12 21:10:50 +0200
commit252fea131e15aba2cd487119d1a8f546471199e2 (patch)
tree9140a2d54d99efacaa550433d47a8640e857cd12
parentrust: workaround `rustdoc` target modifiers bug (diff)
downloadwireguard-linux-252fea131e15aba2cd487119d1a8f546471199e2.tar.xz
wireguard-linux-252fea131e15aba2cd487119d1a8f546471199e2.zip
rust: kbuild: clean output before running `rustdoc`
`rustdoc` can get confused when generating documentation into a folder that contains generated files from other `rustdoc` versions. For instance, running something like: rustup default 1.78.0 make LLVM=1 rustdoc rustup default 1.88.0 make LLVM=1 rustdoc may generate errors like: error: couldn't generate documentation: invalid template: last line expected to start with a comment | = note: failed to create or modify "./Documentation/output/rust/rustdoc/src-files.js" Thus just always clean the output folder before generating the documentation -- we are anyway regenerating it every time the `rustdoc` target gets called, at least for the time being. Cc: stable@vger.kernel.org # Needed in 6.12.y and later (Rust is pinned in older LTSs). Reported-by: Daniel Almeida <daniel.almeida@collabora.com> Closes: https://rust-for-linux.zulipchat.com/#narrow/channel/288089/topic/x/near/527201113 Reviewed-by: Tamir Duberstein <tamird@kernel.org> Link: https://lore.kernel.org/r/20250726133435.2460085-1-ojeda@kernel.org Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
-rw-r--r--rust/Makefile10
1 files changed, 7 insertions, 3 deletions
diff --git a/rust/Makefile b/rust/Makefile
index d47f82588d78..bfa915b0e588 100644
--- a/rust/Makefile
+++ b/rust/Makefile
@@ -111,14 +111,14 @@ rustdoc: rustdoc-core rustdoc-macros rustdoc-compiler_builtins \
rustdoc-macros: private rustdoc_host = yes
rustdoc-macros: private rustc_target_flags = --crate-type proc-macro \
--extern proc_macro
-rustdoc-macros: $(src)/macros/lib.rs FORCE
+rustdoc-macros: $(src)/macros/lib.rs rustdoc-clean FORCE
+$(call if_changed,rustdoc)
# Starting with Rust 1.82.0, skipping `-Wrustdoc::unescaped_backticks` should
# not be needed -- see https://github.com/rust-lang/rust/pull/128307.
rustdoc-core: private skip_flags = --edition=2021 -Wrustdoc::unescaped_backticks
rustdoc-core: private rustc_target_flags = --edition=$(core-edition) $(core-cfgs)
-rustdoc-core: $(RUST_LIB_SRC)/core/src/lib.rs FORCE
+rustdoc-core: $(RUST_LIB_SRC)/core/src/lib.rs rustdoc-clean FORCE
+$(call if_changed,rustdoc)
rustdoc-compiler_builtins: $(src)/compiler_builtins.rs rustdoc-core FORCE
@@ -130,7 +130,8 @@ rustdoc-ffi: $(src)/ffi.rs rustdoc-core FORCE
rustdoc-pin_init_internal: private rustdoc_host = yes
rustdoc-pin_init_internal: private rustc_target_flags = --cfg kernel \
--extern proc_macro --crate-type proc-macro
-rustdoc-pin_init_internal: $(src)/pin-init/internal/src/lib.rs FORCE
+rustdoc-pin_init_internal: $(src)/pin-init/internal/src/lib.rs \
+ rustdoc-clean FORCE
+$(call if_changed,rustdoc)
rustdoc-pin_init: private rustdoc_host = yes
@@ -148,6 +149,9 @@ rustdoc-kernel: $(src)/kernel/lib.rs rustdoc-core rustdoc-ffi rustdoc-macros \
$(obj)/bindings.o FORCE
+$(call if_changed,rustdoc)
+rustdoc-clean: FORCE
+ $(Q)rm -rf $(rustdoc_output)
+
quiet_cmd_rustc_test_library = $(RUSTC_OR_CLIPPY_QUIET) TL $<
cmd_rustc_test_library = \
OBJTREE=$(abspath $(objtree)) \