forked from AbleOS/ableos
138 lines
4.2 KiB
Rust
138 lines
4.2 KiB
Rust
//! AbleOS Kernel Entrypoint
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use {
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crate::{
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arch::hardware_random_u64,
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bootmodules::BootModules,
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//bootmodules::build_cmd,
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device_tree::DeviceTree,
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holeybytes::ExecThread,
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ipc::buffer::IpcBuffer,
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},
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hashbrown::HashMap,
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hbvm::mem::Address,
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limine::{Framebuffer, FramebufferRequest, NonNullPtr},
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log::{debug, trace},
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spin::{Lazy, Mutex},
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};
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pub fn kmain(_cmdline: &str, boot_modules: BootModules) -> ! {
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debug!("Entered kmain");
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// let kcmd = build_cmd("Kernel Command Line", cmdline);
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// trace!("Cmdline: {kcmd:?}");
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// for (i, bm) in boot_modules.iter().enumerate() {
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// let name = format!("module-{}", i);
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// let _bmcmd: XMLElement;
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// if bm.cmd.len() >= 2 {
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// // TODO: pass into the program
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// // Pass CMDLine into an IPCBuffer and put the ptr to the IPCBuffer in r200
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// _bmcmd = build_cmd(name, bm.cmd.clone());
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// log::info!("{:?}", _bmcmd);
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// }
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// }
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let dt = DEVICE_TREE.lock();
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// TODO(Able): This line causes a deadlock
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debug!("Device Tree: {}", dt);
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trace!("Boot complete. Moving to init_system");
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// TODO: schedule the disk driver from the initramfs
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// TODO: schedule the filesystem driver from the initramfs
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// TODO: Schedule the VFS from initramfs
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// TODO: schedule the init system from the initramfs
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drop(dt);
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let fb1: &NonNullPtr<Framebuffer> = &FB_REQ.get_response().get().unwrap().framebuffers()[0];
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{
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use crate::alloc::string::ToString;
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let mut dt = DEVICE_TREE.lock();
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let mut disp = xml::XMLElement::new("display_0");
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disp.set_attribute("width", fb1.width);
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disp.set_attribute("height", fb1.height);
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disp.set_attribute("bits per pixel", fb1.bpp);
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disp.set_attribute("pitch", fb1.pitch);
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dt.devices.insert("Displays".to_string(), alloc::vec![disp]);
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}
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debug!("Graphics initialised");
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debug!(
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"Graphics front ptr {:?}",
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fb1.address.as_ptr().unwrap() as *const u8
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);
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let mut executor = crate::task::Executor::new(256);
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unsafe {
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for module in boot_modules.iter() {
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let cmd = module.cmd.trim_matches('"');
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let cmd_len = cmd.len() as u64;
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log::info!("Spawning {} with arguments \"{}\"", module.path, cmd);
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// decode AbleOS Executable format
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let header = &module.bytes[0..46];
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let magic_slice = &header[0..3];
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if magic_slice != [0x15, 0x91, 0xD2] {
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log::warn!("Non-AbleOS Executable was attempted to be run.")
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}
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let executable_format_version = u32::from_be_bytes(header[3..7].try_into().unwrap());
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let offset = if executable_format_version == 0 {
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47
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} else {
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0
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};
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// let code_length = u64::from_be_bytes(header[7..15].try_into().unwrap());
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// let data_length = u64::from_be_bytes(header[15..23].try_into().unwrap());
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// let end = (code_length + data_length) as usize;
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let mut thr = ExecThread::new(&module.bytes[offset..], Address::new(0));
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if cmd_len > 0 {
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thr.set_arguments(cmd.as_ptr() as u64, cmd_len);
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}
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executor.spawn(async move {
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if let Err(e) = thr.await {
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log::error!("{e:?}");
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}
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})
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}
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debug!("Random number: {}", hardware_random_u64());
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executor.run();
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};
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crate::arch::spin_loop()
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}
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pub static DEVICE_TREE: Lazy<Mutex<DeviceTree>> = Lazy::new(|| {
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let dt = DeviceTree::new();
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Mutex::new(dt)
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});
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pub static FB_REQ: FramebufferRequest = FramebufferRequest::new(0);
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pub type IpcBuffers<'a> = HashMap<u64, IpcBuffer<'a>>;
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pub static IPC_BUFFERS: Lazy<Mutex<IpcBuffers>> = Lazy::new(|| {
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let mut bufs = HashMap::new();
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let log_buffer = IpcBuffer::new(false, 0);
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let file_buffer = IpcBuffer::new(false, 0);
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bufs.insert(1, log_buffer);
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bufs.insert(2, file_buffer);
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Mutex::new(bufs)
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});
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#[test_case]
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fn trivial_assertion() {
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trace!("trivial assertion... ");
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assert_eq!(1, 1);
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info!("[ok]");
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}
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