From: Andi Kleen <ak@xxxxxxxxxxxxxxx> LTO is opt-in per architecture because it usually needs some fixes. LTO needs THIN_ARCHIVES because standard binutils doesn't like mixing assembler and LTO code with ld -r. Enable LTO and THIN_ARCHIVES for x86 Signed-off-by: Andi Kleen <ak@xxxxxxxxxxxxxxx> --- arch/x86/Kconfig | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index 8eed3f94bfc7..92650726f908 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -122,6 +122,8 @@ config X86 select HAVE_ARCH_VMAP_STACK if X86_64 select HAVE_ARCH_WITHIN_STACK_FRAMES select HAVE_CC_STACKPROTECTOR + select THIN_ARCHIVES if LTO + select ARCH_SUPPORTS_LTO select HAVE_CMPXCHG_DOUBLE select HAVE_CMPXCHG_LOCAL select HAVE_CONTEXT_TRACKING if X86_64 -- 2.13.6 -- To unsubscribe from this list: send the line "unsubscribe linux-kbuild" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
