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Commit 6f0e552d authored by Sami Tolvanen's avatar Sami Tolvanen
Browse files

ANDROID: x86, build: allow LTO_CLANG and THINLTO to be selected 



Allow CONFIG_LTO_CLANG and CONFIG_THINLTO to be enabled.

Bug: 145297900
Change-Id: I70ec9d9e897622e8f4810d06186da981fae2d59e
Signed-off-by: default avatarSami Tolvanen <samitolvanen@google.com>
parent a59f0414

arch/x86/Kconfig

+2 −0
Original line number Diff line number Diff line
@@ -90,6 +90,8 @@ config X86 
	select ARCH_SUPPORTS_ACPI

	select ARCH_SUPPORTS_ATOMIC_RMW

	select ARCH_SUPPORTS_NUMA_BALANCING	if X86_64

	select ARCH_SUPPORTS_LTO_CLANG		if X86_64

	select ARCH_SUPPORTS_THINLTO		if X86_64

	select ARCH_USE_BUILTIN_BSWAP

	select ARCH_USE_QUEUED_RWLOCKS

	select ARCH_USE_QUEUED_SPINLOCKS

arch/x86/Makefile

+5 −0
Original line number Diff line number Diff line
@@ -209,6 +209,11 @@ ifdef CONFIG_X86_64 
KBUILD_LDFLAGS += $(call ld-option, -z max-page-size=0x200000)

endif



ifdef CONFIG_LTO_CLANG

KBUILD_LDFLAGS	+= -plugin-opt=-code-model=kernel \

		   -plugin-opt=-stack-alignment=$(if $(CONFIG_X86_32),4,8)

endif



# Workaround for a gcc prelease that unfortunately was shipped in a suse release

KBUILD_CFLAGS += -Wno-sign-compare

#