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authorTri Vo <trong@android.com>2018-09-19 22:27:50 +0300
committerCatalin Marinas <catalin.marinas@arm.com>2018-09-24 12:56:24 +0300
commit2a6c7c367de82951c98a290a21156770f6f82c84 (patch)
treea7a15358e5ae45545538622a1030f9c6083c5ead /arch/arm64/lib
parent0b8af74549c2f985bfc3d2a983961b2a66882890 (diff)
downloadlinux-2a6c7c367de82951c98a290a21156770f6f82c84.tar.xz
arm64: lse: remove -fcall-used-x0 flag
x0 is not callee-saved in the PCS. So there is no need to specify -fcall-used-x0. Clang doesn't currently support -fcall-used flags. This patch will help building the kernel with clang. Tested-by: Nick Desaulniers <ndesaulniers@google.com> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Tri Vo <trong@android.com> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64/lib')
-rw-r--r--arch/arm64/lib/Makefile2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/lib/Makefile b/arch/arm64/lib/Makefile
index f28f91fd96a2..69ff9887f724 100644
--- a/arch/arm64/lib/Makefile
+++ b/arch/arm64/lib/Makefile
@@ -12,7 +12,7 @@ lib-y := clear_user.o delay.o copy_from_user.o \
# when supported by the CPU. Result and argument registers are handled
# correctly, based on the function prototype.
lib-$(CONFIG_ARM64_LSE_ATOMICS) += atomic_ll_sc.o
-CFLAGS_atomic_ll_sc.o := -fcall-used-x0 -ffixed-x1 -ffixed-x2 \
+CFLAGS_atomic_ll_sc.o := -ffixed-x1 -ffixed-x2 \
-ffixed-x3 -ffixed-x4 -ffixed-x5 -ffixed-x6 \
-ffixed-x7 -fcall-saved-x8 -fcall-saved-x9 \
-fcall-saved-x10 -fcall-saved-x11 -fcall-saved-x12 \