linux-kernel - [PATCH v3 8/8] Makefile: Add loongarch target flag for Clang compilation

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Message-Id: <20230625095644.3156349-9-kernel@xen0n.name>
Date:   Sun, 25 Jun 2023 17:56:44 +0800
From:   WANG Xuerui <kernel@...0n.name>
To:     Huacai Chen <chenhuacai@...nel.org>
Cc:     WANG Rui <wangrui@...ngson.cn>, Xi Ruoyao <xry111@...111.site>,
        loongarch@...ts.linux.dev, linux-kbuild@...r.kernel.org,
        llvm@...ts.linux.dev, linux-kernel@...r.kernel.org,
        WANG Xuerui <git@...0n.name>,
        Nick Desaulniers <ndesaulniers@...gle.com>
Subject: [PATCH v3 8/8] Makefile: Add loongarch target flag for Clang compilation

From: WANG Xuerui <git@...0n.name>

The LoongArch kernel is 64-bit and built with the soft-float ABI,
hence the loongarch64-linux-gnusf target. (The "libc" part can affect
the codegen of libcalls: other arches do not use a bare-metal target,
and currently the only fully supported libc on LoongArch is glibc
anyway.)

See: https://lore.kernel.org/loongarch/CAKwvOdnimxv8oJ4mVY74zqtt1x7KTMrWvn2_T9x22SFDbU6rHQ@mail.gmail.com/
Signed-off-by: WANG Xuerui <git@...0n.name>
Reviewed-by: Nick Desaulniers <ndesaulniers@...gle.com>
---
 scripts/Makefile.clang | 1 +
 1 file changed, 1 insertion(+)

diff --git a/scripts/Makefile.clang b/scripts/Makefile.clang
index 058a4c0f864e..6c23c6af797f 100644
--- a/scripts/Makefile.clang
+++ b/scripts/Makefile.clang
@@ -4,6 +4,7 @@
 CLANG_TARGET_FLAGS_arm		:= arm-linux-gnueabi
 CLANG_TARGET_FLAGS_arm64	:= aarch64-linux-gnu
 CLANG_TARGET_FLAGS_hexagon	:= hexagon-linux-musl
+CLANG_TARGET_FLAGS_loongarch	:= loongarch64-linux-gnusf
 CLANG_TARGET_FLAGS_m68k		:= m68k-linux-gnu
 CLANG_TARGET_FLAGS_mips		:= mipsel-linux-gnu
 CLANG_TARGET_FLAGS_powerpc	:= powerpc64le-linux-gnu
-- 
2.40.0