51 lines
1.4 KiB
Makefile
51 lines
1.4 KiB
Makefile
# Used to generated .d file that deal with header dependencies
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CPPFLAGS = -MMD
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CROSS=aarch64-linux-gnu-
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CC=$(CROSS)gcc
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LD=$(CROSS)ld
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CFLAGS=-Wall -Wextra -ffreestanding -march=armv8-a+crc -mcpu=cortex-a53
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DEBUG_FLAGS += -g -Og -DDEBUG -fno-omit-frame-pointer -fno-inline
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LDSCRIPT=rpi3.ld
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TTY?=/dev/ttyUSB0
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gasmsrc=$(wildcard *.S)
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gasmobj=$(gasmsrc:%.S=%.o)
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csrc=$(wildcard *.c)
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cobj=$(csrc:%.c=%.o)
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deps=$(csrc:%.c=%.d) $(gasmsrc:%.S=%.d)
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KERNEL=kernel.bin
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all:$(KERNEL)
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kernel.elf: $(cobj) $(gasmobj) font_psf.o $(LDSCRIPT)
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$(LD) $(LDFLAGS) -o $@ $(gasmobj) $(cobj) font_psf.o -T$(LDSCRIPT) -Map kernel.map
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$(KERNEL) kernel.sym &: kernel.elf
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$(CROSS)objcopy -O binary $< $(KERNEL)
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$(CROSS)objcopy --only-keep-debug $< kernel.sym
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font_psf.o: font.psf
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$(LD) -r -b binary -o font_psf.o font.psf
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clean:
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rm -rf $(cobj) $(gasmobj) $(deps) font_psf.o *.sym *.bin *.elf *.map
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run: $(KERNEL)
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qemu-system-aarch64 -machine raspi3b -kernel $< -serial stdio
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update_serial:
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$(eval skip := $(shell $(CROSS)objdump -t kernel.elf | grep __ld_kernel_begin | cut -d " " -f 1))
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$(eval skip := $(shell printf "%d" $$((0x$(skip)- 0x80000))))
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./boot_client/boot_send.py -d $(TTY) -b 115200 -k kernel.bin -i -s $(skip)
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debug: CFLAGS += $(DEBUG_FLAGS)
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debug: CXXFLAGS += $(DEBUG_FLAGS)
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debug:$(KERNEL)
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aarch64-linux-gnu-gdb -q -x debug.gdb
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ifneq ($(MAKECMDGOALS),clean)
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-include $(deps)
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endif
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