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Sun, 29 Mar 2026 09:03:15 -0700 (PDT) From: "Mukesh Kumar Chaurasiya (IBM)" To: maddy@linux.ibm.com, mpe@ellerman.id.au, npiggin@gmail.com, chleroy@kernel.org, peterz@infradead.org, jpoimboe@kernel.org, jbaron@akamai.com, aliceryhl@google.com, rostedt@goodmis.org, ardb@kernel.org, ojeda@kernel.org, boqun@kernel.org, gary@garyguo.net, bjorn3_gh@protonmail.com, lossin@kernel.org, a.hindborg@kernel.org, tmgross@umich.edu, dakr@kernel.org, linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, rust-for-linux@vger.kernel.org Cc: "Mukesh Kumar Chaurasiya (IBM)" Subject: [PATCH V7 1/4] rust: Fix a race condition in Makefile Date: Sun, 29 Mar 2026 21:32:51 +0530 Message-ID: <20260329160254.2592207-2-mkchauras@gmail.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260329160254.2592207-1-mkchauras@gmail.com> References: <20260329160254.2592207-1-mkchauras@gmail.com> X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 Content-Transfer-Encoding: 8bit When compiling with -j1 flag in powerpc, the libproc_macro finds the libcore.rmeta both in toolchain and local rust directory. libproc_macro should use the toolchain provided libcore.rmeta. So for this, make libproc_macro2 libquote and libsyn dependent on core.o so that libcore.rmeta is generated after these 3 files are done compiling. Signed-off-by: Mukesh Kumar Chaurasiya (IBM) --- rust/Makefile | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/rust/Makefile b/rust/Makefile index 9801af2e1e02..8e62f6fcf94f 100644 --- a/rust/Makefile +++ b/rust/Makefile @@ -650,7 +650,8 @@ $(obj)/core.o: private skip_flags = $(core-skip_flags) $(obj)/core.o: private rustc_objcopy = $(foreach sym,$(redirect-intrinsics),--redefine-sym $(sym)=__rust$(sym)) $(obj)/core.o: private rustc_target_flags = $(core-flags) $(obj)/core.o: $(RUST_LIB_SRC)/core/src/lib.rs \ - $(wildcard $(objtree)/include/config/RUSTC_VERSION_TEXT) FORCE + $(wildcard $(objtree)/include/config/RUSTC_VERSION_TEXT) FORCE \ + | $(obj)/libproc_macro2.rlib $(obj)/libquote.rlib $(obj)/libsyn.rlib FORCE +$(call if_changed_rule,rustc_library) ifneq ($(or $(CONFIG_X86_64),$(CONFIG_X86_32)),) $(obj)/core.o: scripts/target.json -- 2.53.0