arch/um/Makefile-ppc - kernel/msm-5.4 - Gitiles

 ifeq ($(CONFIG_HOST_2G_2G), y)
 START_ADDR = 0x80000000
 else
 START_ADDR = 0xc0000000
 endif
 ARCH_CFLAGS = -U__powerpc__ -D__UM_PPC__

 # The arch is ppc, but the elf32 name is powerpc
 ELF_SUBARCH = powerpc
	ifeq ($(CONFIG_HOST_2G_2G), y)
	START_ADDR = 0x80000000
	else
	START_ADDR = 0xc0000000
	endif
	ARCH_CFLAGS = -U__powerpc__ -D__UM_PPC__

	# The arch is ppc, but the elf32 name is powerpc
	ELF_SUBARCH = powerpc