AfonsoCMSousa/SoraOS
1
1
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Feat: Kernel up and running.

Browse Source
This commit is contained in:
AfonsoCMSousa
2025-11-19 20:11:50 +00:00
parent 9e4224793b
commit 3bd026ca7a
3 changed files with 189 additions and 25 deletions
Download Patch File Download Diff File Expand all files Collapse all files
build.sh
+21 -12
View File
@@ -13,32 +13,40 @@ BLUE='\033[0;34m'
YELLOW='\033[1;33m'
NC='\033[0m'
# Prepare build environment
echo -e "Preparing build environment...${NC}"
echo -e "Creating Folders${NC}"
mkdir -p bin obj boot include
echo -e "${GREEN}✓ ${NC}Folders created.${NC}"
# Step 1: Assemble Stage 1 bootloader (MBR - 512 bytes)
echo -e "${BLUE}[1/6]${NC} Assembling Stage 1 bootloader (MBR)..."
nasm -f bin boot.asm -o boot.bin
nasm -f bin ./boot/boot.asm -o ./bin/boot.bin
# Step 2: Assemble Stage 2 bootloader (extended loader)
echo -e "${BLUE}[2/6]${NC} Assembling Stage 2 bootloader..."
nasm -f bin elevator.asm -o elevator.bin
nasm -f bin ./boot/elevator.asm -o ./bin/elevator.bin
# Step 3: Assemble kernel entry point
echo -e "${BLUE}[3/6]${NC} Assembling kernel entry..."
nasm -f elf64 kernel.asm -o kernel.asm.o
nasm -f elf64 kernel.asm -o ./obj/kernel.asm.o
# Step 4: Compile kernel C code
echo -e "${BLUE}[4/6]${NC} Compiling kernel..."
gcc -ffreestanding -c kernel.c -o kernel.c.o -mcmodel=large -mno-red-zone -fno-pic -fno-pie -static -fno-stack-protector -nostdlib -mno-mmx -mno-sse -mno-sse2 -m64
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
# Step 5: Link kernel
echo -e "${BLUE}[5/6]${NC} Linking kernel..."
ld -T linker.ld -o kernel.bin kernel.asm.o kernel.c.o --oformat binary
ld -T linker.ld -o ./bin/kernel.bin ./obj/kernel.asm.o ./obj/kernel.c.o --oformat binary --nostdlib
# Step 6: Create OS image
echo -e "${BLUE}[6/6]${NC} Creating OS image..."
cat boot.bin elevator.bin kernel.bin > os-image.bin
cat ./bin/boot.bin ./bin/elevator.bin ./bin/kernel.bin > os.bin
# Pad to floppy size (1.44MB)
truncate -s 1440K os-image.bin
# FIX: Uncomment the line below if you want to ensure the image is exactly 1.44MB
#
# truncate -s 1440K os-image.bin
echo ""
echo -e "${GREEN}✓ Build complete!${NC}"
@@ -55,17 +63,18 @@ echo ""
echo "File Sizes:"
printf "%-15s %10s\n" "File" "Size"
printf "%-15s %10s\n" "----" "----"
printf "%-15s %10d bytes\n" "boot.bin" $(stat -f%z boot.bin 2>/dev/null || stat -c%s stage1.bin 2>/dev/null)
printf "%-15s %10d bytes\n" "elevator.bin" $(stat -f%z elevator.bin 2>/dev/null || stat -c%s stage2.bin 2>/dev/null)
printf "%-15s %10d bytes\n" "kernel.bin" $(stat -f%z kernel.bin 2>/dev/null || stat -c%s kernel.bin 2>/dev/null)
printf "%-15s %10d bytes\n" "os-image.bin" $(stat -f%z os-image.bin 2>/dev/null || stat -c%s os-image.bin 2>/dev/null)
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)
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)
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)
printf "%-15s %10d bytes\n" "os.bin" $(stat -f%z os.bin 2>/dev/null || stat -c%s os.bin 2>/dev/null)
echo ""
echo -e "${YELLOW}Running QEMU...${NC}"
echo "==================================="
echo "Press Ctrl+C to exit QEMU"
echo ""
qemu-system-x86_64 -drive format=raw,file=os-image.bin -no-reboot -d cpu_reset
qemu-system-x86_64 -drive format=raw,file=os.bin -no-reboot
echo -e "${GREEN}Done!${NC}"