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authorNick Desaulniers <ndesaulniers@google.com>2021-10-19 15:36:44 -0700
committerWill Deacon <will@kernel.org>2021-10-21 10:31:38 +0100
commita517faa902b5a048adbb4d6bbce9509ba5288af3 (patch)
tree9f729f5eb3bdeeb4e50e6a0e7db19a84f6bf8beb /arch/arm64/kernel/vdso32/Makefile
parent1907d3ff5a644ad7c07bf3c0a56a0b1864c9e5cf (diff)
arm64: vdso32: drop test for -march=armv8-a
As Arnd points out: gcc-4.8 already supported -march=armv8, and we require gcc-5.1 now, so both this #if/#else construct and the corresponding "cc32-option,-march=armv8-a" check should be obsolete now. Link: https://lore.kernel.org/lkml/CAK8P3a3UBEJ0Py2ycz=rHfgog8g3mCOeQOwO0Gmp-iz6Uxkapg@mail.gmail.com/ Suggested-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Nick Desaulniers <ndesaulniers@google.com> Reviewed-by: Vincenzo Frascino <vincenzo.frascino@arm.com> Reviewed-by: Nathan Chancellor <nathan@kernel.org> Link: https://lore.kernel.org/r/20211019223646.1146945-3-ndesaulniers@google.com Signed-off-by: Will Deacon <will@kernel.org>
Diffstat (limited to 'arch/arm64/kernel/vdso32/Makefile')
-rw-r--r--arch/arm64/kernel/vdso32/Makefile8
1 files changed, 1 insertions, 7 deletions
diff --git a/arch/arm64/kernel/vdso32/Makefile b/arch/arm64/kernel/vdso32/Makefile
index 89299a26638b..1407516e041e 100644
--- a/arch/arm64/kernel/vdso32/Makefile
+++ b/arch/arm64/kernel/vdso32/Makefile
@@ -65,13 +65,7 @@ endif
# From arm vDSO Makefile
VDSO_CAFLAGS += -fPIC -fno-builtin -fno-stack-protector
VDSO_CAFLAGS += -DDISABLE_BRANCH_PROFILING
-
-
-# Try to compile for ARMv8. If the compiler is too old and doesn't support it,
-# fall back to v7. There is no easy way to check for what architecture the code
-# is being compiled, so define a macro specifying that (see arch/arm/Makefile).
-VDSO_CAFLAGS += $(call cc32-option,-march=armv8-a -D__LINUX_ARM_ARCH__=8,\
- -march=armv7-a -D__LINUX_ARM_ARCH__=7)
+VDSO_CAFLAGS += -march=armv8-a
VDSO_CFLAGS := $(VDSO_CAFLAGS)
VDSO_CFLAGS += -DENABLE_COMPAT_VDSO=1