linux-kernel - [PATCH 1/2] LoongArch: vDSO: Use CLANG_FLAGS instead of filtering out '--target='

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Date:   Tue, 27 Jun 2023 21:01:21 +0800
From:   WANG Xuerui <kernel@...0n.name>
To:     Huacai Chen <chenhuacai@...nel.org>
Cc:     WANG Rui <wangrui@...ngson.cn>,
        Nathan Chancellor <nathan@...nel.org>,
        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>
Subject: [PATCH 1/2] LoongArch: vDSO: Use CLANG_FLAGS instead of filtering out '--target='

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

This is a port of commit 76d7fff22be3e ("MIPS: VDSO: Use CLANG_FLAGS
instead of filtering out '--target='") to arch/loongarch, for fixing
cross-compilation with Clang.

Reported-by: Nathan Chancellor <nathan@...nel.org>
Link: https://github.com/ClangBuiltLinux/linux/issues/1787#issuecomment-1608306002
Signed-off-by: WANG Xuerui <git@...0n.name>
---
 arch/loongarch/vdso/Makefile | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/arch/loongarch/vdso/Makefile b/arch/loongarch/vdso/Makefile
index 3f9df4d9930f..a50308b6fc25 100644
--- a/arch/loongarch/vdso/Makefile
+++ b/arch/loongarch/vdso/Makefile
@@ -12,12 +12,9 @@ ccflags-vdso := \
 	$(filter -E%,$(KBUILD_CFLAGS)) \
 	$(filter -march=%,$(KBUILD_CFLAGS)) \
 	$(filter -m%-float,$(KBUILD_CFLAGS)) \
+	$(CLANG_FLAGS) \
 	-D__VDSO__
 
-ifeq ($(cc-name),clang)
-ccflags-vdso += $(filter --target=%,$(KBUILD_CFLAGS))
-endif
-
 cflags-vdso := $(ccflags-vdso) \
 	-isystem $(shell $(CC) -print-file-name=include) \
 	$(filter -W%,$(filter-out -Wa$(comma)%,$(KBUILD_CFLAGS))) \
-- 
2.40.0