aarch64-linux-gnu-gcc: error: unrecognized argument in option ‘-mabi=apcs-gnu’
aarch64-linux-gnu-gcc: note: valid arguments to ‘-mabi=’ are: ilp32 lp64
aarch64-linux-gnu-gcc: error: unrecognized argument in option ‘-mabi=apcs-gnu’
aarch64-linux-gnu-gcc: note: valid arguments to ‘-mabi=’ are: ilp32 lp64
aarch64-linux-gnu-gcc: error: unrecognized argument in option ‘-mabi=apcs-gnu’
aarch64-linux-gnu-gcc: note: valid arguments to ‘-mabi=’ are: ilp32 lp64
解决方法：
make ARCH=arm64 CROSS_COMPILE=$(CROSS_COMPILE_721) -C $(PF_LINUX_SRC) M=$(PWD) modules -j10