82 lines
2.7 KiB
Bash
Executable File
82 lines
2.7 KiB
Bash
Executable File
#!/bin/bash
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# Complete build script for SoraOS with 2-stage bootloader
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set -e # Exit on any error
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echo "==================================="
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echo " SoraOS Build System v1.0"
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echo "==================================="
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echo ""
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# Colors
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GREEN='\033[0;32m'
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BLUE='\033[0;34m'
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YELLOW='\033[1;33m'
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NC='\033[0m'
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# Prepare build environment
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echo -e "Preparing build environment...${NC}"
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echo -e "Creating Folders${NC}"
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mkdir -p bin obj boot include
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echo -e "${GREEN}✓${NC} Folders created.${NC}"
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# Step 1: Assemble Stage 1 bootloader (MBR - 512 bytes)
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echo -e "${BLUE}[1/6]${NC} Assembling Stage 1 bootloader (MBR)..."
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nasm -f bin ./boot/boot.asm -o ./bin/boot.bin
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# Step 2: Assemble Stage 2 bootloader (extended loader)
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echo -e "${BLUE}[2/6]${NC} Assembling Stage 2 bootloader..."
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nasm -f bin ./boot/elevator.asm -o ./bin/elevator.bin
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# Step 3: Assemble kernel entry point
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echo -e "${BLUE}[3/6]${NC} Assembling kernel entry..."
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nasm -f elf64 ./boot/kernel.asm -o ./obj/kernel.asm.o
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# Step 4: Compile kernel C code
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echo -e "${BLUE}[4/6]${NC} Compiling kernel..."
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gcc -ffreestanding -c kernel.c -o ./obj/kernel.c.o -mcmodel=large -mno-red-zone -fno-pic -fno-pie -static -fno-stack-protector -nostdlib -mno-mmx -mno-sse -mno-sse2 -m64
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# Step 5: Link kernel
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echo -e "${BLUE}[5/6]${NC} Linking kernel..."
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ld -T linker.ld -o ./bin/kernel.bin ./obj/kernel.asm.o ./obj/kernel.c.o --oformat binary --nostdlib
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# Step 6: Create OS image
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echo -e "${BLUE}[6/6]${NC} Creating OS image..."
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cat ./bin/boot.bin ./bin/elevator.bin ./bin/kernel.bin > os.bin
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# Pad to floppy size (1.44MB)
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# FIX: Uncomment the line below if you want to ensure the image is exactly 1.44MB
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#
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truncate -s 1440K os.bin
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echo ""
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echo -e "${GREEN}✓ Build complete!${NC}"
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echo ""
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echo "==================================="
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echo "File Layout:"
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echo "==================================="
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echo "Sector 1: Stage 1 (MBR)"
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echo "Sectors 2-6: Stage 2 (Extended Bootloader)"
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echo "Sectors 7+: Kernel"
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echo ""
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# Show sizes
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echo "File Sizes:"
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printf "%-15s %10s\n" "File" "Size"
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printf "%-15s %10s\n" "----" "----"
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printf "%-15s %10d bytes\n" "boot.bin" $(stat -f%z ./bin/boot.bin 2>/dev/null || stat -c%s ./bin/boot.bin 2>/dev/null)
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printf "%-15s %10d bytes\n" "elevator.bin" $(stat -f%z ./bin/elevator.bin 2>/dev/null || stat -c%s ./bin/elevator.bin 2>/dev/null)
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printf "%-15s %10d bytes\n" "kernel.bin" $(stat -f%z ./bin/kernel.bin 2>/dev/null || stat -c%s ./bin/kernel.bin 2>/dev/null)
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printf "%-15s %10d bytes\n" "os.bin" $(stat -f%z os.bin 2>/dev/null || stat -c%s os.bin 2>/dev/null)
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echo ""
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echo -e "${YELLOW}Running QEMU...${NC}"
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echo "==================================="
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echo "Press Ctrl+C to exit QEMU"
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echo ""
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qemu-system-x86_64 -drive format=raw,file=os.bin -no-reboot
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echo -e "${GREEN}Done!${NC}"
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