From nobody Sun Feb 8 21:43:41 2026 Received: from mail.loongson.cn (mail.loongson.cn [114.242.206.163]) by smtp.subspace.kernel.org (Postfix) with ESMTP id 22B3D523E; Sat, 6 Jan 2024 07:04:05 +0000 (UTC) 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 [112.22.232.245]) by gateway (Coremail) with SMTP id _____8Cxbbtj+5hl4pUCAA--.794S3; Sat, 06 Jan 2024 15:04:03 +0800 (CST) Received: from localhost.localdomain (unknown [112.22.232.245]) by localhost.localdomain (Coremail) with SMTP id AQAAf8Bx34de+5hlmlQEAA--.11488S2; Sat, 06 Jan 2024 15:04:00 +0800 (CST) From: WANG Rui To: Miguel Ojeda , Alex Gaynor , Wedson Almeida Filho , Huacai Chen , Jonathan Corbet Cc: Boqun Feng , Gary Guo , =?UTF-8?q?Bj=C3=B6rn=20Roy=20Baron?= , Benno Lossin , Andreas Hindborg , Alice Ryhl , WANG Xuerui , rust-for-linux@vger.kernel.org, linux-kernel@vger.kernel.org, loongarch@lists.linux.dev, linux-doc@vger.kernel.org, loongson-kernel@lists.loongnix.cn, WANG Rui Subject: [PATCH] LoongArch: Enable initial Rust support Date: Sat, 6 Jan 2024 14:59:41 +0800 Message-ID: <20240106065941.180796-1-wangrui@loongson.cn> X-Mailer: git-send-email 2.43.0 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: AQAAf8Bx34de+5hlmlQEAA--.11488S2 X-CM-SenderInfo: pzdqw2txl6z05rqj20fqof0/ X-Coremail-Antispam: 1Uk129KBj93XoWxGr4UWryDJw43Xw45Cr4kAFc_yoW5Ary5pa 97ur97Jr4xXrykJrn8JFyUZr4UAFyDGr47XF18Cw18Jr4DZryUXr1xtFn3JF1rGw4kArW8 WF15GryUArWUJwbCm3ZEXasCq-sJn29KB7ZKAUJUUUUk529EdanIXcx71UUUUU7KY7ZEXa sCq-sGcSsGvfJ3Ic02F40EFcxC0VAKzVAqx4xG6I80ebIjqfuFe4nvWSU5nxnvy29KBjDU 0xBIdaVrnRJUUUBYb4IE77IF4wAFF20E14v26r1j6r4UM7CY07I20VC2zVCF04k26cxKx2 IYs7xG6rWj6s0DM7CIcVAFz4kK6r1Y6r17M28lY4IEw2IIxxk0rwA2F7IY1VAKz4vEj48v e4kI8wA2z4x0Y4vE2Ix0cI8IcVAFwI0_Gr0_Xr1l84ACjcxK6xIIjxv20xvEc7CjxVAFwI 0_Gr0_Cr1l84ACjcxK6I8E87Iv67AKxVW8JVWxJwA2z4x0Y4vEx4A2jsIEc7CjxVAFwI0_ Gr0_Gr1UM2kKe7AKxVWUtVW8ZwAS0I0E0xvYzxvE52x082IY62kv0487Mc804VCY07AIYI kI8VC2zVCFFI0UMc02F40EFcxC0VAKzVAqx4xG6I80ewAv7VC0I7IYx2IY67AKxVWUtVWr XwAv7VC2z280aVAFwI0_Gr0_Cr1lOx8S6xCaFVCjc4AY6r1j6r4UM4x0Y48IcxkI7VAKI4 8JMxkF7I0En4kS14v26r1q6r43MxAIw28IcxkI7VAKI48JMxC20s026xCaFVCjc4AY6r1j 6r4UMxCIbckI1I0E14v26r1q6r43MI8I3I0E5I8CrVAFwI0_Jr0_Jr4lx2IqxVCjr7xvwV AFwI0_JrI_JrWlx4CE17CEb7AF67AKxVW8ZVWrXwCIc40Y0x0EwIxGrwCI42IY6xIIjxv2 0xvE14v26r1I6r4UMIIF0xvE2Ix0cI8IcVCY1x0267AKxVW8JVWxJwCI42IY6xAIw20EY4 v20xvaj40_Jr0_JF4lIxAIcVC2z280aVAFwI0_Jr0_Gr1lIxAIcVC2z280aVCY1x0267AK xVW8JVW8JrUvcSsGvfC2KfnxnUUI43ZEXa7IU0L0ePUUUUU== Content-Type: text/plain; charset="utf-8" Add initial Rust support for LoongArch. Signed-off-by: WANG Rui --- Documentation/rust/arch-support.rst | 1 + arch/loongarch/Kconfig | 1 + arch/loongarch/Makefile | 3 +++ scripts/generate_rust_target.rs | 10 ++++++++++ 4 files changed, 15 insertions(+) diff --git a/Documentation/rust/arch-support.rst b/Documentation/rust/arch-= support.rst index b91e9ef4d0c2..e89c8b2efbff 100644 --- a/Documentation/rust/arch-support.rst +++ b/Documentation/rust/arch-support.rst @@ -15,6 +15,7 @@ support corresponds to ``S`` values in the ``MAINTAINERS`= ` file. =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D Architecture Level of support Constraints =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D +``loongarch`` Maintained ``um`` Maintained ``x86_64`` only. ``x86`` Maintained ``x86_64`` only. =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D diff --git a/arch/loongarch/Kconfig b/arch/loongarch/Kconfig index 15d05dd2b7f3..6d39ec3077da 100644 --- a/arch/loongarch/Kconfig +++ b/arch/loongarch/Kconfig @@ -142,6 +142,7 @@ config LOONGARCH select HAVE_REGS_AND_STACK_ACCESS_API select HAVE_RETHOOK select HAVE_RSEQ + select HAVE_RUST select HAVE_SAMPLE_FTRACE_DIRECT select HAVE_SAMPLE_FTRACE_DIRECT_MULTI select HAVE_SETUP_PER_CPU_AREA if NUMA diff --git a/arch/loongarch/Makefile b/arch/loongarch/Makefile index 4ba8d67ddb09..ba45cb7b621c 100644 --- a/arch/loongarch/Makefile +++ b/arch/loongarch/Makefile @@ -81,8 +81,11 @@ KBUILD_AFLAGS_MODULE +=3D -Wa,-mla-global-with-abs KBUILD_CFLAGS_MODULE +=3D -fplt -Wa,-mla-global-with-abs,-mla-local-with-= abs endif =20 +KBUILD_RUSTFLAGS_MODULE +=3D -Crelocation-model=3Dpic + ifeq ($(CONFIG_RELOCATABLE),y) KBUILD_CFLAGS_KERNEL +=3D -fPIE +KBUILD_RUSTFLAGS_KERNEL +=3D -Crelocation-model=3Dpie LDFLAGS_vmlinux +=3D -static -pie --no-dynamic-linker -z notext $(call l= d-option, --apply-dynamic-relocs) endif =20 diff --git a/scripts/generate_rust_target.rs b/scripts/generate_rust_target= .rs index 3c6cbe2b278d..3edda6a10dd0 100644 --- a/scripts/generate_rust_target.rs +++ b/scripts/generate_rust_target.rs @@ -161,6 +161,16 @@ fn main() { ts.push("features", features); ts.push("llvm-target", "x86_64-linux-gnu"); ts.push("target-pointer-width", "64"); + } else if cfg.has("LOONGARCH") { + ts.push("arch", "loongarch64"); + ts.push( + "data-layout", + "e-m:e-p:64:64-i64:64-i128:128-n64-S128", + ); + ts.push("features", "-f,-d"); + ts.push("llvm-target", "loongarch64-linux-gnusf"); + ts.push("llvm-abiname", "lp64s"); + ts.push("target-pointer-width", "64"); } else { panic!("Unsupported architecture"); } --=20 2.43.0