initial commit -- framebuffer Hello, World!

2024-11-16 15:13:05 +00:00
commit ac4cf9a27b
16 changed files with 863 additions and 0 deletions
@@ -0,0 +1,114 @@
+#!/bin/bash
+
+# Colors
+GREEN='\033[0;32m'
+BLUE='\033[0;34m'
+YELLOW='\033[0;33m'
+RED='\033[0;31m'
+BOLD='\033[1m'
+NC='\033[0m' # No Color
+
+# Error handling
+set -e
+trap 'echo -e "${RED}${BOLD}error${NC}: build failed" >&2' ERR
+
+# Logging functions
+info() {
+    echo -e "${BLUE}${BOLD}info${NC}: $1"
+}
+
+compiling() {
+    echo -e "${GREEN}${BOLD}Compiling${NC} $1"
+}
+
+warning() {
+    echo -e "${YELLOW}${BOLD}warning${NC}: $1" >&2
+}
+
+error() {
+    echo -e "${RED}${BOLD}error${NC}: $1" >&2
+    exit 1
+}
+
+build_dir=build
+iso_root=$build_dir/iso_root
+kernel_path=$1
+kernel_name=$(basename $kernel_path)
+
+# Check for required tools
+check_tools() {
+    local missing=0
+    for tool in xorriso git qemu-system-x86_64; do
+        if ! command -v $tool >/dev/null 2>&1; then
+            error "required tool '$tool' is not installed"
+            missing=1
+        fi
+    done
+    if [ $missing -eq 1 ]; then
+        error "missing required tools"
+    fi
+}
+
+# Create build directory structure
+info "Creating build directory structure"
+mkdir -p "$iso_root/boot/limine"
+mkdir -p "$iso_root/EFI/BOOT"
+
+# Clone Limine if needed
+if [ ! -d "$build_dir/limine" ]; then
+    compiling "limine bootloader"
+    git clone https://github.com/limine-bootloader/limine.git --branch=v8.x-binary --depth=1 "$build_dir/limine" || error "failed to clone limine"
+    make -C "$build_dir/limine" || error "failed to build limine"
+fi
+
+# Copy files
+info "Copying files to ISO root"
+cp -v "$kernel_path" "$iso_root/boot/kernel" || error "failed to copy kernel"
+cp -v config/limine.conf "$iso_root/boot/limine/" || error "failed to copy limine config"
+cp -v "$build_dir/limine/limine-bios.sys" "$build_dir/limine/limine-bios-cd.bin" \
+      "$build_dir/limine/limine-uefi-cd.bin" "$iso_root/boot/limine/" || error "failed to copy limine files"
+cp -v "$build_dir/limine/BOOTX64.EFI" "$iso_root/EFI/BOOT/" || error "failed to copy BOOTX64.EFI"
+cp -v "$build_dir/limine/BOOTIA32.EFI" "$iso_root/EFI/BOOT/" || error "failed to copy BOOTIA32.EFI"
+
+# Create ISO
+compiling "bootable ISO image"
+xorriso -as mkisofs -R -r -J -b boot/limine/limine-bios-cd.bin \
+        -no-emul-boot -boot-load-size 4 -boot-info-table -hfsplus \
+        -apm-block-size 2048 --efi-boot boot/limine/limine-uefi-cd.bin \
+        -efi-boot-part --efi-boot-image --protective-msdos-label \
+        "$iso_root" -o "$build_dir/image.iso" || error "failed to create ISO"
+
+# Install Limine
+info "Installing Limine bootloader"
+"$build_dir/limine/limine" bios-install "$build_dir/image.iso" || error "failed to install limine"
+
+# Check if KVM is available
+if [ "${KVM_FLAG:-enable}" = "disable" ]; then
+    warning "KVM acceleration disabled by user"
+    kvm_flag=""
+elif [ -c "/dev/kvm" ] && [ -w "/dev/kvm" ]; then
+    info "KVM acceleration enabled"
+    kvm_flag="-enable-kvm"
+else
+    warning "KVM acceleration not available (is kvm module loaded?)"
+    kvm_flag=""
+fi
+
+# Run in QEMU
+if [[ ${QEMU_FLAGS} == *-S* ]]; then
+    info "Running OS in QEMU with GDB debugging enabled"
+    info "To connect GDB, run: gdb"
+    info "At the GDB prompt, type: target remote localhost:1234"
+else
+    info "Running OS in QEMU..."
+fi
+
+exec qemu-system-x86_64 -M q35 \
+    ${kvm_flag} \
+    -cdrom "$build_dir/image.iso" \
+    -boot d \
+    -m 2G \
+    -serial stdio \
+    -no-reboot \
+    -no-shutdown \
+    ${QEMU_FLAGS:-}