40 lines
No EOL
1.6 KiB
Makefile
40 lines
No EOL
1.6 KiB
Makefile
root_dir := $(dir $(abspath $(lastword $(MAKEFILE_LIST))))
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source_dir := $(root_dir)/src
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object_dir := $(root_dir)/build
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linker_script := $(root_dir)/linker.ld
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output_dir := $(root_dir)/output
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LD := ld
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CXX := clang++
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CXXFLAGS := -std=c++20 -fpie -fno-strict-aliasing -fno-stack-protector -fno-asynchronous-unwind-tables -fno-exceptions -fno-rtti -fno-common -fno-c++-static-destructors -mno-red-zone -mgeneral-regs-only -ffreestanding -O2 -g -Wall -Wextra -Wno-reserved-identifier -I$(root_dir)/include
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source_files := $(shell find $(source_dir) -type f -name "*.cpp")
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object_files := $(patsubst $(source_dir)/%,$(object_dir)/%.o,$(source_files))
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$(object_files): $(object_dir)%.o : $(source_dir)%
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@mkdir -p $(dir $@)
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@echo "Compiling $<"
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@$(CXX) $(CXXFLAGS) -c $< -o $@
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kernel.bin: $(object_files)
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@mkdir -p $(output_dir)
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@echo "Linking kernel"
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@$(LD) --build-id=none --no-relax --no-warn-rwx-segments -nostdlib -o $(output_dir)/kernel.bin -T $(linker_script) $(object_files)
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@echo "Disassembling kernel"
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@objdump -dC $(output_dir)/kernel.bin > $(output_dir)/kernel.asm
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@objdump -DC $(output_dir)/kernel.bin > $(output_dir)/kernel_full.asm
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@echo "Dumping strings"
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@strings -t x $(output_dir)/kernel.bin > $(output_dir)/kernel.strings
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@echo "Hexdumping sections"
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@objdump -sC $(output_dir)/kernel.bin > $(output_dir)/kernel.hex
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iso: kernel.bin
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@echo "Creating ISO"
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@cp $(output_dir)/kernel.bin $(root_dir)/iso/boot/kernel.bin
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@grub-mkrescue -d /usr/lib/grub/i386-pc -o $(output_dir)/kernel.iso iso
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all: kernel.bin iso
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clean:
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@rm -rf $(object_dir) $(output_dir) iso/boot/kernel.bin
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