arch/arm/mach-actions/Makefile - third_party/linux - Git at Google

 obj-${CONFIG_SMP} += platsmp.o headsmp.o

 AFLAGS_headsmp.o := -Wa,-march=armv7-a
	obj-${CONFIG_SMP} += platsmp.o headsmp.o

	AFLAGS_headsmp.o := -Wa,-march=armv7-a