#CC=arm-none-eabi-gcc
AS=arm-none-eabi-as
CXX=arm-none-eabi-g++
OBJCOPY=arm-none-eabi-objcopy
OBJDUMP=arm-none-eabi-objdump

#CFLAGS=-ffreestanding -march=armv7-a -mcpu=cortex-a8 -mfloat-abi=softfp -mfpu=neon --std=gnu99 -ggdb -Wall -Wextra -pedantic -Wno-unused-parameter -Og -flto
CXXFLAGS=-ffreestanding -march=armv7-a -mcpu=cortex-a8 -mfloat-abi=softfp -mfpu=neon -mno-unaligned-access --std=c++11 -ggdb -Wall -Wextra -pedantic -Wno-unused-parameter -fno-rtti -fstrict-enums -Wabi -Og -flto
LDFLAGS=-static
C_SRCS=
CXX_SRCS=cortexa8.cc drv_omap35x_gpt.cc drv_omap35x_i2c.cc drv_omap35x_sdmmc.cc drv_tps65950.cc main.cc mm.cc newlib_syscall.cc omap35x.cc omap35x_intc.cc omap35x_prcm.cc pagecache.cc phys_mm.cc scheduler.cc sleep.cc syscall.cc uart.cc
S_SRCS=cortexa8_asm.s

OBJS=$(addprefix objs/,$(C_SRCS:.c=.o)) $(addprefix objs/,$(CXX_SRCS:.cc=.o)) $(addprefix objs/,$(S_SRCS:.s=.o))

all:	fw.img

fw:	$(OBJS) fw_cxx.ld
	$(CXX) $(CXXFLAGS) $(LDFLAGS) -o $@ $(OBJS) -lc -T fw_cxx.ld

fw.bin:	fw
	$(OBJCOPY) -O binary $< $@

fw.img:	fw.bin
	./mkimage -A arm -O linux -T kernel -C none -a 0x80008000 -e `$(OBJDUMP) -f fw | grep "start address" | cut -d\  -f 3` -n none -d $< $@

beagle-nand.bin:	fw.img
	./bb_nandflash.sh $< $@ kernel >/dev/null 2>&1
	./bb_nandflash_ecc $@ 0x0 0xe80000 || true

qemu:	beagle-nand.bin
	qemu-system-arm -M beagle -m 256M -mtdblock beagle-nand.bin -sd sd.bin -nographic -s

objs/%.o:	%.c
	$(CXX) $(CXXFLAGS) -c -MMD -MP -o $@ $<
	@cp objs/$*.d objs/$*.P; rm -f objs/$*.d

objs/%.o:	%.cc
	$(CXX) $(CXXFLAGS) -c -MMD -MP -o $@ $<
	@cp objs/$*.d objs/$*.P; rm -f objs/$*.d

objs/%.o:	%.s
	$(AS) $(ASOPTS) -o $@ $<

clean:
	rm -f $(OBJS) $(addprefix objs/,$(C_SRCS:.c=.P)) $(addprefix objs/,$(CXX_SRCS:.cc=.P)) fw fw.bin fw.img 

.PSEUDO=all clean qemu

-include $(addprefix objs/,$(C_SRCS:.c=.P))

-include $(addprefix objs/,$(CXX_SRCS:.cc=.P))