85 lines
2.4 KiB
Makefile
85 lines
2.4 KiB
Makefile
SHELL := /bin/bash
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ARCH ?= x86_64
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CC := clang
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ELF_LD := ld.lld
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LD := lld-link
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BUILD_DIR := build
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KERNEL_ELF := $(BUILD_DIR)/image/kernel.elf
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DEBUG_LOG := $(BUILD_DIR)/debug.log
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SERIAL_LOG := $(BUILD_DIR)/serial.log
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KERNEL_TEST_TRAP ?= 0
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ifeq ($(ARCH),x86_64)
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ARCH_MAKEFILE := arch/x86/Makefile
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else
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$(error Unsupported ARCH '$(ARCH)')
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endif
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include $(ARCH_MAKEFILE)
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include $(ARCH_DIR)/boot/Makefile
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include $(ARCH_DIR)/kernel/Makefile
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include mm/Makefile
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include kernel/Makefile
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.PHONY: all clean dirs run run-headless
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all: $(BOOT_EFI) $(KERNEL_ELF)
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dirs:
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mkdir -p $(BUILD_DIR)/arch/boot $(BUILD_DIR)/arch/kernel $(BUILD_DIR)/kernel $(BUILD_DIR)/mm $(EFI_DIR)
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$(BUILD_DIR)/arch/boot/%.obj: $(ARCH_DIR)/boot/%.c $(ARCH_DIR)/include/efi.h $(ARCH_DIR)/boot/debug_log.h include/tianole/boot_info.h include/tianole/elf.h | dirs
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$(CC) $(CFLAGS) -c $< -o $@
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$(BOOT_EFI): $(BOOT_OBJS) | dirs
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$(LD) $(LDFLAGS) $(BOOT_OBJS)
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$(BUILD_DIR)/arch/kernel/entry.o: $(ARCH_DIR)/kernel/entry.S | dirs
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$(CC) $(KERNEL_ASFLAGS) -c $< -o $@
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$(BUILD_DIR)/arch/kernel/%.o: $(ARCH_DIR)/kernel/%.S | dirs
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$(CC) $(KERNEL_ASFLAGS) -c $< -o $@
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$(BUILD_DIR)/arch/kernel/%.o: $(ARCH_DIR)/kernel/%.c include/tianole/arch.h | dirs
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$(CC) $(KERNEL_CFLAGS) -c $< -o $@
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$(BUILD_DIR)/kernel/%.o: kernel/%.c include/tianole/boot_info.h include/tianole/kernel_init.h include/tianole/arch.h include/tianole/early_log.h include/tianole/mm.h | dirs
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mkdir -p $(@D)
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$(CC) $(KERNEL_CFLAGS) -c $< -o $@
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$(BUILD_DIR)/mm/%.o: mm/%.c include/tianole/boot_info.h include/tianole/early_log.h include/tianole/mm.h | dirs
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mkdir -p $(@D)
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$(CC) $(KERNEL_CFLAGS) -c $< -o $@
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$(KERNEL_ELF): $(KERNEL_OBJS) $(ARCH_DIR)/kernel/linker.ld | dirs
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$(ELF_LD) $(KERNEL_LDFLAGS) $(KERNEL_OBJS)
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$(OVMF_VARS): | dirs
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cp $(OVMF_VARS_TEMPLATE) $@
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run: $(BOOT_EFI) $(OVMF_VARS)
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qemu-system-x86_64 \
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-drive if=pflash,format=raw,readonly=on,file=$(OVMF_CODE) \
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-drive if=pflash,format=raw,file=$(OVMF_VARS) \
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-drive format=raw,file=fat:rw:$(BUILD_DIR)/image \
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-serial stdio
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run-headless: $(BOOT_EFI) $(OVMF_VARS)
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rm -f $(DEBUG_LOG) $(SERIAL_LOG)
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qemu-system-x86_64 \
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-display none \
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-nodefaults \
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-no-reboot \
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-drive if=pflash,format=raw,readonly=on,file=$(OVMF_CODE) \
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-drive if=pflash,format=raw,file=$(OVMF_VARS) \
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-drive format=raw,file=fat:rw:$(BUILD_DIR)/image \
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-debugcon file:$(DEBUG_LOG) \
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-global isa-debugcon.iobase=0xe9 \
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-serial file:$(SERIAL_LOG)
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clean:
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rm -rf $(BUILD_DIR)
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