From 5813f6a1c2b83d1c2a115d87ca684c5d1e11e299 Mon Sep 17 00:00:00 2001
From: Levent Kaya <levent.kaya@codefirst.io>
Date: Sun, 24 Nov 2024 14:08:13 +0300
Subject: [build] test env build script

---
 fbgl_qemu_test_env.sh | 161 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 161 insertions(+)
 create mode 100644 fbgl_qemu_test_env.sh

diff --git a/fbgl_qemu_test_env.sh b/fbgl_qemu_test_env.sh
new file mode 100644
index 0000000..f519b67
--- /dev/null
+++ b/fbgl_qemu_test_env.sh
@@ -0,0 +1,161 @@
+#!/bin/bash
+
+# Configuration
+KERNEL_VERSION="6.1.1"
+BUSYBOX_VERSION="1.36.1"
+WORKDIR="$(pwd)/fbgl-test-env"
+KERNEL_URL="https://cdn.kernel.org/pub/linux/kernel/v6.x/linux-${KERNEL_VERSION}.tar.xz"
+BUSYBOX_URL="https://busybox.net/downloads/busybox-${BUSYBOX_VERSION}.tar.bz2"
+
+# Colors for output
+RED='\033[0;31m'
+GREEN='\033[0;32m'
+NC='\033[0m' # No Color
+
+# Error handling
+set -e
+trap 'echo -e "${RED}Error: Script failed${NC}" >&2' ERR
+
+echo -e "${GREEN}Setting up FBGL test environment...${NC}"
+
+# Create working directory
+mkdir -p "${WORKDIR}"
+cd "${WORKDIR}"
+
+# Function to check if a package is installed
+check_package() {
+    if ! command -v $1 &> /dev/null; then
+        echo -e "${RED}Error: $1 is not installed${NC}"
+        exit 1
+    fi
+}
+
+# Check required packages
+required_packages=(wget make gcc g++ qemu-system-x86_64 cpio gzip bc flex bison libelf-dev)
+for package in "${required_packages[@]}"; do
+    check_package $package
+done
+
+# Download and extract kernel
+if [ ! -d "linux-${KERNEL_VERSION}" ]; then
+    echo "Downloading Linux kernel..."
+    wget -q --show-progress "${KERNEL_URL}"
+    tar xf "linux-${KERNEL_VERSION}.tar.xz"
+    rm "linux-${KERNEL_VERSION}.tar.xz"
+fi
+
+# Configure and build kernel
+cd "linux-${KERNEL_VERSION}"
+if [ ! -f ".config" ]; then
+    echo "Configuring kernel..."
+    make defconfig
+    # Enable framebuffer support
+    cat >> .config << EOF
+CONFIG_FB=y
+CONFIG_FB_VESA=y
+CONFIG_FB_EFI=y
+CONFIG_FB_SIMPLE=y
+CONFIG_FRAMEBUFFER_CONSOLE=y
+EOF
+fi
+
+echo "Building kernel..."
+make -j$(nproc) bzImage
+
+cd "${WORKDIR}"
+
+# Download and build Busybox
+if [ ! -d "busybox-${BUSYBOX_VERSION}" ]; then
+    echo "Downloading Busybox..."
+    wget -q --show-progress "${BUSYBOX_URL}"
+    tar xf "busybox-${BUSYBOX_VERSION}.tar.bz2"
+    rm "busybox-${BUSYBOX_VERSION}.tar.bz2"
+fi
+
+cd "busybox-${BUSYBOX_VERSION}"
+if [ ! -f ".config" ]; then
+    echo "Configuring Busybox..."
+    make defconfig
+    # Build statically
+    sed -i 's/# CONFIG_STATIC is not set/CONFIG_STATIC=y/' .config
+fi
+
+echo "Building Busybox..."
+make -j$(nproc)
+make install
+
+# Create initial ramdisk
+cd "${WORKDIR}"
+mkdir -p initramfs
+cd initramfs
+mkdir -p {bin,sbin,etc,proc,sys,usr/{bin,sbin},dev}
+
+# Copy Busybox
+cp -a ../busybox-${BUSYBOX_VERSION}/_install/* .
+
+# Create init script
+cat > init << 'EOF'
+#!/bin/sh
+mount -t proc none /proc
+mount -t sysfs none /sys
+mount -t devtmpfs none /dev
+
+# Create framebuffer device
+mknod /dev/fb0 c 29 0
+
+# Set up environment
+export PATH=/bin:/sbin:/usr/bin:/usr/sbin
+
+# Create test directory
+mkdir -p /test
+cd /test
+
+# Your FBGL test program will be copied here
+# Wait for it to be copied and then execute it
+
+echo "Ready for FBGL testing!"
+exec /bin/sh
+EOF
+
+chmod +x init
+
+# Create initial ramdisk
+find . | cpio -H newc -o | gzip > "${WORKDIR}/initramfs.cpio.gz"
+
+# Create test script
+cd "${WORKDIR}"
+cat > run-test.sh << 'EOF'
+#!/bin/bash
+
+if [ $# -ne 1 ]; then
+    echo "Usage: $0 <fbgl-test-program>"
+    exit 1
+fi
+
+TEST_PROGRAM="$1"
+KERNEL="linux-6.1.1/arch/x86/boot/bzImage"
+INITRD="initramfs.cpio.gz"
+
+if [ ! -f "$TEST_PROGRAM" ]; then
+    echo "Error: Test program not found: $TEST_PROGRAM"
+    exit 1
+fi
+
+qemu-system-x86_64 \
+    -kernel "$KERNEL" \
+    -initrd "$INITRD" \
+    -append "console=ttyS0 root=/dev/ram0 rw init=/init" \
+    -nographic \
+    -enable-kvm \
+    -device virtio-vga \
+    -cpu host \
+    -m 1G
+
+EOF
+
+chmod +x run-test.sh
+
+echo -e "${GREEN}FBGL test environment setup complete!${NC}"
+echo "To run a test program:"
+echo "1. Build your FBGL program"
+echo "2. Run: ./run-test.sh <path-to-your-program>"
\ No newline at end of file
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