1 -include	local.mk
2 BOARD       ?=qemu_virt
3 BIN			?=/usr/local/bin/
4 OBJCOPY		?=llvm-objcopy
5 
6 ARCH		= aarch64
7 TARGET		= ${ARCH}-none-elf
8 
9 AS			= ${BIN}clang
10 ASFLAGS		= -target ${TARGET}
11 ASFILES		= boot.o
12 
13 CXX			= ${BIN}clang++
14 CXXFLAGS	= -target ${TARGET} -Wall -Wextra -nostdlib -fno-exceptions
15 CXXFLAGS    += -ffreestanding -mgeneral-regs-only
16 CXXFLAGS    += -Iinclude
17 CXXFILES	= kernel.cc uart_${BOARD}.cc
18 
19 OBJS        = ${ASFILES:.S=.o} ${CXXFILES:.cc=.o}
20 LD			= ${BIN}ld.lld
21 
22 .PHONY:	clean
23 
24 all: squat.img
25 
26 squat.img: squat.elf
27 	${OBJCOPY} squat.elf -O binary squat.img
28 
29 squat.elf: linker.ld ${OBJS}
30 	${LD} -T linker.ld -o squat.elf ${OBJS}
31 
32 .S.o:
33 	${AS} ${ASFLAGS} -c boot.S -o boot.o
34 
35 clean:
36 	rm -rf *.o squat.elf squat.img