From nobody Fri Oct 3 10:13:37 2025 Received: from mail.loongson.cn (mail.loongson.cn [114.242.206.163]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 4F6D72F28ED; Wed, 3 Sep 2025 09:53:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=114.242.206.163 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756893214; cv=none; b=b1G6zrpWyJeSKNbqKIeR258Fs40QTXz1C5qx+iKqG3DUbXnab0Hkvws8djHBIOIvyU1X9EIlJFuU3FIsWfz1EbvM0Qn4sTVGdHJ45TQ3fBAhJ+knybK2w3VZDoVBwTWtsXnZazCOxxoIIgiUdfRifNSdcMVFGUbW4a1TSWrDLPo= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1756893214; c=relaxed/simple; bh=XDP0wG8oJcBD8iSHmUgaU/ixC9iP7cOFsK+EMA7pI/M=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=G/qOgjVOXQ6TssWPtnXQLRsIOyy8UTQJzcfmEMDUUqk5OARL7Yssuy5VLWTGxzpCQ5MctW9A4kluSEy520wlMRk+pzIe2XEBoSU1Wig/JbN3p+7MpV8sYjXfWnMEWwBNEZJIDB6BEqnNWYfr5CsxHfWCIqV9KWPvWUe24Ok3oEQ= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=loongson.cn; spf=pass smtp.mailfrom=loongson.cn; arc=none smtp.client-ip=114.242.206.163 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=loongson.cn Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=loongson.cn Received: from loongson.cn (unknown [113.200.148.30]) by gateway (Coremail) with SMTP id _____8Cxbb8TELho7y0GAA--.11945S3; Wed, 03 Sep 2025 17:53:23 +0800 (CST) Received: from linux.localdomain (unknown [113.200.148.30]) by front1 (Coremail) with SMTP id qMiowJAxfcEMELhom_16AA--.5842S4; Wed, 03 Sep 2025 17:53:23 +0800 (CST) From: Tiezhu Yang To: Huacai Chen , Miguel Ojeda Cc: WANG Rui , rust-for-linux@vger.kernel.org, loongarch@lists.linux.dev, linux-kernel@vger.kernel.org Subject: [RFC PATCH 2/3] LoongArch: Make LTO case independent in Makefile Date: Wed, 3 Sep 2025 17:53:14 +0800 Message-ID: <20250903095315.15057-3-yangtiezhu@loongson.cn> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20250903095315.15057-1-yangtiezhu@loongson.cn> References: <20250903095315.15057-1-yangtiezhu@loongson.cn> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-CM-TRANSID: qMiowJAxfcEMELhom_16AA--.5842S4 X-CM-SenderInfo: p1dqw3xlh2x3gn0dqz5rrqw2lrqou0/ X-Coremail-Antispam: 1Uk129KBj93XoW7CFyDXrW8ur45AF17Jw4fJFc_yoW8XryDpw sa9rZYqr4rWr4vgr9rJay5WrnxtFZrtr1xWFWxK3W8AF47Xw17Xr48tFyDXFyDJ3s3JrWI qrWfKr9xJF4UC3XCm3ZEXasCq-sJn29KB7ZKAUJUUUU8529EdanIXcx71UUUUU7KY7ZEXa sCq-sGcSsGvfJ3Ic02F40EFcxC0VAKzVAqx4xG6I80ebIjqfuFe4nvWSU5nxnvy29KBjDU 0xBIdaVrnRJUUUk0b4IE77IF4wAFF20E14v26r1j6r4UM7CY07I20VC2zVCF04k26cxKx2 IYs7xG6rWj6s0DM7CIcVAFz4kK6r126r13M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48v e4kI8wA2z4x0Y4vE2Ix0cI8IcVAFwI0_Ar0_tr1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI 0_Cr0_Gr1UM28EF7xvwVC2z280aVAFwI0_GcCE3s1l84ACjcxK6I8E87Iv6xkF7I0E14v2 6rxl6s0DM2AIxVAIcxkEcVAq07x20xvEncxIr21l57IF6xkI12xvs2x26I8E6xACxx1l5I 8CrVACY4xI64kE6c02F40Ex7xfMcIj6xIIjxv20xvE14v26r1q6rW5McIj6I8E87Iv67AK xVW8JVWxJwAm72CE4IkC6x0Yz7v_Jr0_Gr1lF7xvr2IYc2Ij64vIr41l42xK82IYc2Ij64 vIr41l4I8I3I0E4IkC6x0Yz7v_Jr0_Gr1lx2IqxVAqx4xG67AKxVWUJVWUGwC20s026x8G jcxK67AKxVWUGVWUWwC2zVAF1VAY17CE14v26r126r1DMIIYrxkI7VAKI48JMIIF0xvE2I x0cI8IcVAFwI0_JFI_Gr1lIxAIcVC0I7IYx2IY6xkF7I0E14v26r4j6F4UMIIF0xvE42xK 8VAvwI8IcIk0rVWUJVWUCwCI42IY6I8E87Iv67AKxVWUJVW8JwCI42IY6I8E87Iv6xkF7I 0E14v26r4j6r4UJbIYCTnIWIevJa73UjIFyTuYvjxUco7KUUUUU Content-Type: text/plain; charset="utf-8" LTO is not only used for Clang, it maybe used for Rust, make LTO case out of CONFIG_CC_HAS_ANNOTATE_TABLEJUMP in Makefile. This is preparation for later patch, no function changes. Suggested-by: WANG Rui Signed-off-by: Tiezhu Yang --- arch/loongarch/Makefile | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/arch/loongarch/Makefile b/arch/loongarch/Makefile index a3a9759414f4..9d80af7f75c8 100644 --- a/arch/loongarch/Makefile +++ b/arch/loongarch/Makefile @@ -102,16 +102,16 @@ KBUILD_CFLAGS +=3D $(call cc-option,-mthin-add-sub)= $(call cc-option,-Wa$(comma) =20 ifdef CONFIG_OBJTOOL ifdef CONFIG_CC_HAS_ANNOTATE_TABLEJUMP +KBUILD_CFLAGS +=3D -mannotate-tablejump +else +KBUILD_CFLAGS +=3D -fno-jump-tables # keep compatibility with older comp= ilers +endif +ifdef CONFIG_LTO_CLANG # The annotate-tablejump option can not be passed to LLVM backend when LTO= is enabled. # Ensure it is aware of linker with LTO, '--loongarch-annotate-tablejump' = also needs to # be passed via '-mllvm' to ld.lld. -KBUILD_CFLAGS +=3D -mannotate-tablejump -ifdef CONFIG_LTO_CLANG KBUILD_LDFLAGS +=3D -mllvm --loongarch-annotate-tablejump endif -else -KBUILD_CFLAGS +=3D -fno-jump-tables # keep compatibility with older comp= ilers -endif endif =20 KBUILD_RUSTFLAGS +=3D --target=3Dloongarch64-unknown-none-softfloat -Ccod= e-model=3Dsmall --=20 2.42.0