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C_SOURCES = $(wildcard src/*.c src/**/*.c)
C_HEADERS = $(wildcard src/*.h src/**/*.h)
C_OBJECTS = ${C_SOURCES:.c=.co}
C_OBJECTD = ${subst src,obj,${C_OBJECTS}}
A_SOURCES = $(wildcard src/*.S src/**/*.S)
A_OBJECTS = ${A_SOURCES:.S=.ao}
A_OBJECTD = ${subst src,obj,${A_OBJECTS}}
CROSS = arm-none-eabi
CC = ${CROSS}-gcc
AS = ${CROSS}-as
OBJCOPY = ${CROSS}-objcopy
OBJDUMP = ${CROSS}-objdump
QEMU = qemu-system-arm
GDB = gdb-multiarch
CFLAGS = -mcpu=cortex-a7 -fpic -ffreestanding -std=gnu99 -O3 -Wall -Wextra -nostdlib -Iinclude -g
AFLAGS = -mcpu=cortex-a7 -Iinclude -g
QFLAGS = -M raspi2 -cpu arm1176 -m 1G -chardev stdio,id=char0,mux=on,logfile=serial.log,signal=off -serial chardev:char0 -mon chardev=char0 -device usb-kbd
#QFLAGS += -trace events=events
#QFLAGS += -nographic
BSP ?= 2
ifeq ($(BSP),2)
BSP23 = 1
CFLAGS += -DBSP23
endif
CFLAGS += -DVERSION="\"0.0e\""
.PHONY: clean run run-debug debug export tree
default: clean build/kernel7.img
build/kernel7.img: build/kernel.elf
@mkdir -p $(@D)
${OBJCOPY} $< -O binary $@
build/kernel.list: build/kernel-g.elf
@mkdir -p $(@D)
${OBJDUMP} -D $< > $@
build/kernel-g.elf: ${A_OBJECTD} ${C_OBJECTD}
@mkdir -p $(@D)
${CC} -T linker.ld -o $@ ${CFLAGS} $^ -lgcc
build/kernel.elf: ${A_OBJECTD} ${C_OBJECTD}
@mkdir -p $(@D)
${CC} -T linker.ld -o $@ -ffreestanding -O3 -nostdlib $^ -lgcc
export: build/kernel.list
cp build/kernel-g.elf /mnt/c/Local/
obj/%.co: src/%.c
@mkdir -p $(@D)
${CC} ${CFLAGS} -c $< -o $@
obj/%.ao: src/%.S
@mkdir -p $(@D)
${AS} ${AFLAGS} -c $< -o $@
run: build/kernel.elf
@echo Starting QEMU
@${QEMU} -kernel $< ${QFLAGS}
run-debug: build/kernel-g.elf
@echo Starting QEMU in Debug Mode
@${QEMU} -kernel $< -s -S ${QFLAGS}
debug: build/kernel-g.elf build/kernel.list
${GDB} $< -command=gdbinit
clean:
rm -rf obj/* build/*
tree:
@tree -a -I obj\|build\|.git\|.gitignore
|
