ableos/kernel/src/kmain.rs

//! AbleOS Kernel Entrypoint

use {hashbrown::HashMap, hbvm::mem::Address};

use crate::{capabilities, holeybytes::ExecThread, ipc::buffer::IpcBuffer};
// use crate::arch::sloop;
use {
    crate::{
        bootmodules::{build_cmd, BootModules},
        device_tree::DeviceTree,
    },
    alloc::format,
    log::{debug, info, trace},
    spin::{Lazy, Mutex},
    xml::XMLElement,
};

pub fn kmain(cmdline: &str, boot_modules: BootModules) -> ! {
    debug!("Entered kmain");

    let kcmd = build_cmd("Kernel Command Line", cmdline);
    trace!("Cmdline: {kcmd:?}");

    for (i, bm) in boot_modules.iter().enumerate() {
        let name = format!("module-{}", i);
        let _bmcmd: XMLElement;
        if bm.cmd.len() >= 2 {
            // TODO: pass into the program
            // Pass CMDLine into an IPCBuffer and put the ptr to the IPCBuffer in r200
            _bmcmd = build_cmd(name, bm.cmd.clone());
        }
    }

    let dt = DEVICE_TREE.lock();

    // TODO(Able): This line causes a deadlock
    info!("Device Tree: {}", dt);

    info!("Boot complete. Moving to init_system");

    // TODO: schedule the disk driver from the initramfs
    // TODO: schedule the filesystem driver from the initramfs
    // TODO: Schedule the VFS from initramfs
    // TODO: schedule the init system from the initramfs

    let mut executor = crate::task::Executor::default();
    unsafe {
        for module in boot_modules.into_iter().take(2) {
            executor.spawn(async move {
                if let Err(e) = ExecThread::new(&module.bytes, Address::new(4)).await {
                    log::error!("{e:?}");
                }
            });
        }

        executor.run();
    };

    crate::arch::spin_loop()
}

pub static DEVICE_TREE: Lazy<Mutex<DeviceTree>> = Lazy::new(|| {
    let dt = DeviceTree::new();
    Mutex::new(dt)
});

use alloc::vec::Vec;
pub type IpcBuffers = HashMap<u64, IpcBuffer>;
pub static IPC_BUFFERS: Lazy<Mutex<IpcBuffers>> = Lazy::new(|| {
    let bufs = HashMap::new();
    Mutex::new(bufs)
});

#[test_case]
fn trivial_assertion() {
    trace!("trivial assertion... ");
    assert_eq!(1, 1);
    info!("[ok]");
}