102 lines
2.9 KiB
Makefile
102 lines
2.9 KiB
Makefile
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.SUFFIXES:
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.PHONY: all clean test tests
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all: myos.iso
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SOURCE_DIR := src
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BUILD_DIR := build
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CONTAINER_CMD := podman run -v "$(shell pwd)":"/scratch" \
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--workdir="/scratch" \
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--network=none \
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-e TERM \
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-t \
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cc-i686:latest
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QEMU := qemu-system-i386
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QEMU_FLAGS := -d int -no-reboot
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CC := $(CONTAINER_CMD) i686-elf-gcc
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LD := $(CONTAINER_CMD) i686-elf-ld
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AS := $(CONTAINER_CMD) i686-elf-as
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AR := $(CONTAINER_CMD) i686-elf-ar
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C_SOURCES := $(shell find $(SOURCE_DIR) ! -name '*_test*' -name '*.c')
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ASM_SOURCES := $(shell find $(SOURCE_DIR) -name '*.S')
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OBJECTS := $(patsubst $(SOURCE_DIR)/%, $(BUILD_DIR)/%, $(C_SOURCES:.c=.o) $(ASM_SOURCES:.S=.o))
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DEPENDS := $(patsubst $(SOURCE_DIR)/%, $(BUILD_DIR)/%, $(C_SOURCES:.c=.d))
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CFLAGS := -ffreestanding -nostdlib -std=c2x -MMD -I$(SOURCE_DIR)/lib/include -I$(SOURCE_DIR) -no-pie
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CFLAGS += -O1 -g3
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CFLAGS += -Wall -Wextra -Werror
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CFLAGS += -fstack-protector-strong -g3
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CFLAGS += -Wno-unused-function
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CFLAGS += -Wno-unused-variable
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ASFLAGS :=
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#$(info C_SOURCES is $(C_SOURCES))
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#$(info ASM_SOURCES is $(ASM_SOURCES))
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#$(info OBJECTS is $(OBJECTS))
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#$(info DEPENDS is $(DEPENDS))
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run: myos.iso
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$(QEMU) $(QEMU_FLAGS) -cdrom myos.iso
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cross-compiler: cross-compiler-image/Dockerfile
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podman build cross-compiler-image -t cc-i686
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clean:
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rm -f $(BUILD_DIR) myos.iso
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myos.iso: $(BUILD_DIR)/myos.bin
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@mkdir -p $(BUILD_DIR)/image/boot/grub
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cp -v $< $(BUILD_DIR)/image/boot/
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cp -v grub.cfg $(BUILD_DIR)/image/boot/grub/grub.cfg
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grub-mkrescue -o $@ $(BUILD_DIR)/image
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$(BUILD_DIR)/myos.bin: $(OBJECTS)
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@mkdir -p $(@D)
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$(CC) -T linker.ld -o $@ $(CFLAGS) -nostdlib $^ -lgcc
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-include $(DEPENDS)
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$(BUILD_DIR)/kernel/interrupts.o: $(SOURCE_DIR)/kernel/interrupts.c Makefile
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@mkdir -p $(@D)
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$(CC) -c $(CFLAGS) -mgeneral-regs-only -mno-red-zone $< -o $@
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$(BUILD_DIR)/%.o: $(SOURCE_DIR)/%.c Makefile
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@mkdir -p $(@D)
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$(CC) -c $(CFLAGS) $< -o $@
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$(BUILD_DIR)/%.o: $(SOURCE_DIR)/%.S Makefile
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@mkdir -p $(@D)
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$(AS) $(ASFLAGS) $< -o $@
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###################
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# TESTS #
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###################
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TEST_BUILD_DIR := $(BUILD_DIR)/tests
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#TEST_SOURCES := $(shell find $(SOURCE_DIR) -name '*_test.c')
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#TEST_DEPENDS := $(patsubst $(SOURCE_DIR)/%, $(TEST_BUILD_DIR)/%, $(TEST_SOURCES:.c=.d))
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#TEST_OUTPUT := $(patsubst $(SOURCE_DIR)/%, $(TEST_BUILD_DIR)/%, $(TEST_SOURCES:.c=))
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tests: $(TEST_OUTPUT)
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$(info TEST_SOURCES is $(TEST_SOURCES))
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$(info TEST_DEPENDS is $(TEST_DEPENDS))
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$(info TEST_OUTPUT is $(TEST_OUTPUT))
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test: tests
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-include $(TEST_DEPENDS)
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$(TEST_BUILD_DIR)/%_test: $(SOURCE_DIR)/%.c $(SOURCE_DIR)/%_test.c | Makefile
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@mkdir -p $(@D)
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gcc -O1 -fsanitize=address,undefined -Wall -Wextra -Werror -g3 -std=c2x -D_FORTIFY_SOURCE=2 -I$(SOURCE_DIR)/lib/include -o $@ $^
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./$@
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