Initial commit

2026-05-29 18:16:57 +00:00 · 2026-02-04 20:51:17 +01:00
commit ddac1a791e
132 changed files with 11491 additions and 0 deletions
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+# BrewOS Makefile
+# Target Architecture: x86_64
+# Host: macOS
+
+# Toolchain Definitions
+CC = x86_64-elf-gcc
+LD = x86_64-elf-ld
+NASM = nasm
+XORRISO = xorriso
+
+# Directories
+SRC_DIR = src/kernel
+BUILD_DIR = build
+ISO_DIR = iso_root
+
+# Output
+KERNEL_ELF = $(BUILD_DIR)/brewos.elf
+ISO_IMAGE = brewos.iso
+
+# Source Files
+C_SOURCES = $(wildcard $(SRC_DIR)/*.c)
+CLI_APP_SOURCES = $(wildcard $(SRC_DIR)/cli_apps/*.c)
+ASM_SOURCES = $(wildcard $(SRC_DIR)/*.asm)
+OBJ_FILES = $(patsubst $(SRC_DIR)/%.c, $(BUILD_DIR)/%.o, $(C_SOURCES)) \
+            $(patsubst $(SRC_DIR)/cli_apps/%.c, $(BUILD_DIR)/cli_apps/%.o, $(CLI_APP_SOURCES)) \
+            $(patsubst $(SRC_DIR)/%.asm, $(BUILD_DIR)/%.o, $(ASM_SOURCES))
+
+# Flags
+CFLAGS = -g -O2 -pipe -Wall -Wextra -std=gnu11 -ffreestanding \
+         -fno-stack-protector -fno-stack-check -fno-lto -fPIE \
+         -m64 -march=x86-64 -mno-80387 -mno-mmx -mno-sse -mno-sse2 -mno-red-zone \
+         -I$(SRC_DIR) -I$(SRC_DIR)/cli_apps
+
+LDFLAGS = -m elf_x86_64 -nostdlib -static -pie --no-dynamic-linker \
+          -z text -z max-page-size=0x1000 -T linker.ld
+
+NASMFLAGS = -f elf64
+
+# Limine Version
+LIMINE_VERSION = 7.0.0
+LIMINE_URL_BASE = https://github.com/limine-bootloader/limine/raw/v$(LIMINE_VERSION)
+
+.PHONY: all clean run limine-setup
+
+all: $(ISO_IMAGE)
+
+# Ensure build directories exist
+$(BUILD_DIR):
+	mkdir -p $(BUILD_DIR)
+	mkdir -p $(BUILD_DIR)/cli_apps
+
+# Download Limine Binaries via Git
+limine-setup:
+	@if [ ! -f limine/limine-bios.sys ]; then \
+		echo "Limine binaries missing or invalid. Cloning v$(LIMINE_VERSION)-binary..."; \
+		rm -rf limine; \
+		git clone https://github.com/limine-bootloader/limine.git --branch=v$(LIMINE_VERSION)-binary --depth=1 limine; \
+	fi
+	@if [ ! -f $(SRC_DIR)/limine.h ]; then \
+		echo "Copying limine.h..."; \
+		cp limine/limine.h $(SRC_DIR)/limine.h; \
+	fi
+	@echo "Building Limine host utility..."; \
+	$(MAKE) -C limine
+
+# Compile C Sources
+$(BUILD_DIR)/%.o: $(SRC_DIR)/%.c | $(BUILD_DIR) limine-setup
+	$(CC) $(CFLAGS) -c $< -o $@
+
+# Compile CLI Apps C Sources
+$(BUILD_DIR)/cli_apps/%.o: $(SRC_DIR)/cli_apps/%.c | $(BUILD_DIR) limine-setup
+	$(CC) $(CFLAGS) -c $< -o $@
+
+# Assemble ASM Sources
+$(BUILD_DIR)/%.o: $(SRC_DIR)/%.asm | $(BUILD_DIR)
+	$(NASM) $(NASMFLAGS) $< -o $@
+
+# Link Kernel
+$(KERNEL_ELF): $(OBJ_FILES)
+	$(LD) $(LDFLAGS) -o $@ $(OBJ_FILES)
+
+# Create ISO
+$(ISO_IMAGE): $(KERNEL_ELF) limine.cfg limine-setup
+	rm -rf $(ISO_DIR)
+	mkdir -p $(ISO_DIR)
+	mkdir -p $(ISO_DIR)/EFI/BOOT
+	
+	# Copy Kernel and Config
+	cp $(KERNEL_ELF) $(ISO_DIR)/
+	cp limine.cfg $(ISO_DIR)/
+	
+	# Copy README
+	cp README.md $(ISO_DIR)/
+	
+	# Copy Wallpaper (if it exists)
+	@if [ -f src/kernel/wallpaper.ppm ]; then cp src/kernel/wallpaper.ppm $(ISO_DIR)/; fi
+	
+	# Copy Limine Bootloader Files (flat structure in binary branch)
+	cp limine/limine-bios.sys $(ISO_DIR)/
+	cp limine/limine-bios-cd.bin $(ISO_DIR)/
+	cp limine/limine-uefi-cd.bin $(ISO_DIR)/
+	
+	# Create EFI Boot Files
+	cp limine/BOOTX64.EFI $(ISO_DIR)/EFI/BOOT/
+	cp limine/BOOTIA32.EFI $(ISO_DIR)/EFI/BOOT/
+	
+	# Generate ISO
+	$(XORRISO) -as mkisofs -b limine-bios-cd.bin \
+		-no-emul-boot -boot-load-size 4 -boot-info-table \
+		--efi-boot limine-uefi-cd.bin \
+		-efi-boot-part --efi-boot-image --protective-msdos-label \
+		$(ISO_DIR) -o $(ISO_IMAGE)
+	
+	# Install Limine to ISO (for BIOS boot)
+	./limine/limine bios-install $(ISO_IMAGE)
+
+clean:
+	rm -rf $(BUILD_DIR) $(ISO_DIR) $(ISO_IMAGE)
+
+run: $(ISO_IMAGE)
+	qemu-system-x86_64 -m 2G -serial stdio -cdrom $(ISO_IMAGE) -boot d \
+		-audiodev coreaudio,id=audio0 -machine pcspk-audiodev=audio0