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51 lines
1.3 KiB
Makefile
51 lines
1.3 KiB
Makefile
SRC_DIR=src
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INCLUDE_DIR=include
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BUILD_DIR=build
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K_BIN_NAME=kernel.bin
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ISO_NAME=os_image.iso
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CC=cc
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LD=ld
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CFLAGS=-std=c2x -ffreestanding -g -Wall -Wextra -pedantic -lgcc -isystem $(INCLUDE_DIR)
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C_SRC=$(shell find $(SRC_DIR) -type f -name "*.c")
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C_OBJ=$(patsubst %.c,$(BUILD_DIR)/%.o,$(C_SRC))
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H_SRC=$(shell find $(SRC_DIR) -type f -name "*.h")
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H_INCLUDE=$(shell find $(INCLUDE_DIR) -type f -name "*.h")
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A_SRC=$(shell find $(SRC_DIR) -type f -name "*.S")
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A_OBJ=$(patsubst %.S,$(BUILD_DIR)/%.S.o,$(A_SRC))
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.PHONY: all clean
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all: $(BUILD_DIR)/$(ISO_NAME)
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clean:
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rm -rf $(BUILD_DIR)/*
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$(A_OBJ): $(BUILD_DIR)/%.S.o : %.S
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@mkdir -p $(@D)
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nasm $< -f elf64 -o $@
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$(BUILD_DIR)/$(SRC_DIR)/arch/amd64/shim.o: $(SRC_DIR)/arch/amd64/shim.c
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@mkdir -p $(@D)
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$(CC) -c $(CFLAGS) -o $@ $< -m32
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$(C_OBJ): $(BUILD_DIR)/%.o : %.c
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@mkdir -p $(@D)
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$(CC) -c $(CFLAGS) -o $@ $<
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$(BUILD_DIR)/$(K_BIN_NAME): $(SRC_DIR)/arch/amd64/linker.ld $(A_OBJ) $(C_OBJ) $(H_SRC) $(H_INCLUDE)
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@mkdir -p $(@D)
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$(LD) -nmagic -o $(BUILD_DIR)/$(K_BIN_NAME) -T $(SRC_DIR)/arch/amd64/linker.ld $(A_OBJ) $(C_OBJ)
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$(BUILD_DIR)/$(ISO_NAME): $(BUILD_DIR)/$(K_BIN_NAME) grub.cfg
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@mkdir -p $(@D)
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@mkdir -p $(BUILD_DIR)/iso/boot/grub
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cp grub.cfg $(BUILD_DIR)/iso/boot/grub
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cp $(BUILD_DIR)/$(K_BIN_NAME) $(BUILD_DIR)/iso/boot
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grub-mkrescue -o $(BUILD_DIR)/$(ISO_NAME) $(BUILD_DIR)/iso
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