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port clipper to boot using grub

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Robert 2023-09-03 20:11:33 +02:00
parent 040e083658
commit 7adc0c7ce1
7 changed files with 104 additions and 239 deletions
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44
Makefile
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@ -1,37 +1,37 @@
ASM=nasm
CC=$(HOME)/opt/cross/bin/i686-elf-gcc
SRC_DIR=src
BUILD_DIR=build
ISO_DIR=$(BUILD_DIR)/iso
BOOT_FILES = $(shell find $(SRC_DIR)/boot/ -type f -name "*.asm")
KERN_ASM_FILES = $(shell find $(SRC_DIR)/kernel/ -type f -name "*.asm")
KERNEL_ASM := $(shell find $(SRC_DIR)/kernel -name "*.asm")
KERNEL_C := $(shell find $(SRC_DIR)/kernel -name "*.c")
BOOT_BIN_FILES = $(patsubst src/%.asm, $(BUILD_DIR)/%.bin, $(BOOT_FILES))
KERN_BIN_FILES = $(patsubst src/%.asm, $(BUILD_DIR)/%.bin, $(KERN_ASM_FILES))
KERNEL_ASM_O := $(patsubst $(SRC_DIR)/kernel/%.asm, $(BUILD_DIR)/kernel/%.asm.o, $(KERNEL_ASM))
KERNEL_C_O := $(patsubst $(SRC_DIR)/kernel/%.c, $(BUILD_DIR)/kernel/%.c.o, $(KERNEL_C))
BOOTLOADER = $(BUILD_DIR)/boot.bin
KERNEL = $(BUILD_DIR)/kernel.bin
IMAGE = $(BUILD_DIR)/clipper.img
KERNEL = $(BUILD_DIR)/clipper.bin
IMAGE = $(BUILD_DIR)/clipper.iso
.PHONY: all clipper kernel bootloader clean always
.PHONY: all clipper kernel clean always
clipper: $(IMAGE)
clipper: kernel
mkdir -p $(ISO_DIR)/boot/grub
cp $(KERNEL) $(ISO_DIR)/boot/clipper.bin
cp grub/grub.cfg $(ISO_DIR)/boot/grub/grub.cfg
grub-mkrescue -o $(IMAGE) $(ISO_DIR)
$(IMAGE): bootloader kernel
dd if=/dev/zero of=$(IMAGE) bs=512 count=2880
mkfs.fat -F 12 -n "CLPR" $(IMAGE)
dd if=$(BOOTLOADER) of=$(IMAGE) conv=notrunc
mcopy -i $(IMAGE) $(KERNEL) "::kernel.bin"
kernel: $(KERNEL_ASM_O) $(KERNEL_C_O)
$(CC) -T linker.ld -o $(KERNEL) -ffreestanding -O2 -nostdlib $^ -lgcc
bootloader: $(BOOT_BIN_FILES)
cp $(BUILD_DIR)/boot/boot.bin $(BOOTLOADER)
kernel: $(KERN_BIN_FILES)
cp $(BUILD_DIR)/kernel/kernel.bin $(KERNEL)
$(BUILD_DIR)/%.bin: $(SRC_DIR)/%.asm
$(BUILD_DIR)/%.asm.o: $(SRC_DIR)/%.asm
@mkdir -p "$(@D)"
$(ASM) $< -f bin -o $@
$(ASM) -felf32 $< -o $@
$(BUILD_DIR)/%.c.o: $(SRC_DIR)/%.c
@mkdir -p "$(@D)"
$(CC) -c $< -o $@ -std=gnu99 -ffreestanding -O2 -Wall -Wextra
clean:
rm -rf $(BUILD_DIR)/*