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objtool/kbuild/rust: enable objtool for Rust

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Now that we should be `objtool`-warning free, enable `objtool` for
Rust too.

Before this patch series, we were already getting warnings under e.g. IBT
builds, since those would see Rust code via `vmlinux.o`.

Tested-by: Alice Ryhl <aliceryhl@google.com>
Tested-by: Benno Lossin <benno.lossin@proton.me>
Reviewed-by: Gary Guo <gary@garyguo.net>
Link: https://lore.kernel.org/r/20240725183325.122827-7-ojeda@kernel.org
[ Solved trivial conflict. - Miguel ]
Signed-off-by: Miguel Ojeda <ojeda@kernel.org>
This commit is contained in:
Miguel Ojeda
2024-07-25 20:33:23 +02:00
parent 56d680dd23
commit c4d7f546dd
2 changed files with 21 additions and 10 deletions
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scripts/Makefile.build
+7 -2
View File
@@ -288,10 +288,15 @@ rust_common_cmd = \
# would not match each other.
quiet_cmd_rustc_o_rs = $(RUSTC_OR_CLIPPY_QUIET) $(quiet_modtag) $@
cmd_rustc_o_rs = $(rust_common_cmd) --emit=obj=$@ $<
cmd_rustc_o_rs = $(rust_common_cmd) --emit=obj=$@ $< $(cmd_objtool)
define rule_rustc_o_rs
$(call cmd_and_fixdep,rustc_o_rs)
$(call cmd,gen_objtooldep)
endef
$(obj)/%.o: $(obj)/%.rs FORCE
+$(call if_changed_dep,rustc_o_rs)
+$(call if_changed_rule,rustc_o_rs)
quiet_cmd_rustc_rsi_rs = $(RUSTC_OR_CLIPPY_QUIET) $(quiet_modtag) $@
cmd_rustc_rsi_rs = \