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#!/usr/bin/env node
import path from "node:path";
import fs from "node:fs";
import url from "node:url";
import { V86 } from "../../../build/libv86.mjs";
console.log("Don't forget to run `make all` before running this script");
const __dirname = url.fileURLToPath(new URL(".", import.meta.url));
const V86_ROOT = path.join(__dirname, "../../..");
const OUTPUT_FILE = path.join(V86_ROOT, "images/alpine-state.bin");
var emulator = new V86({
bios: { url: path.join(V86_ROOT, "bios/seabios.bin") },
vga_bios: { url: path.join(V86_ROOT, "bios/vgabios.bin") },
autostart: true,
memory_size: 512 * 1024 * 1024,
vga_memory_size: 8 * 1024 * 1024,
network_relay_url: "<UNUSED>",
bzimage_initrd_from_filesystem: true,
cmdline: "rw root=host9p rootfstype=9p rootflags=trans=virtio,cache=loose modules=virtio_pci tsc=reliable init_on_free=on",
filesystem: {
baseurl: path.join(V86_ROOT, "images/alpine-rootfs-flat"),
basefs: path.join(V86_ROOT, "images/alpine-fs.json"),
},
});
console.log("Now booting, please stand by ...");
let serial_text = "";
let booted = false;
emulator.add_listener("serial0-output-byte", function(byte)
{
const c = String.fromCharCode(byte);
//process.stdout.write(c);
serial_text += c;
if(!booted && serial_text.endsWith("localhost:~# "))
{
booted = true;
emulator.serial0_send("sync;echo 3 >/proc/sys/vm/drop_caches\n");
setTimeout(async function ()
{
const s = await emulator.save_state();
fs.writeFile(OUTPUT_FILE, new Uint8Array(s), function(e)
{
if(e) throw e;
console.log("Saved as " + OUTPUT_FILE);
emulator.destroy();
});
}, 10 * 1000);
}
});
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