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- #![no_main] // <1>
- #![feature(alloc_error_handler)]
- #![feature(allocator_api)]
- #![feature(arbitrary_self_types)]
- #![feature(asm_const)]
- #![feature(const_mut_refs)]
- #![feature(const_trait_impl)]
- #![feature(const_refs_to_cell)]
- #![feature(core_intrinsics)]
- #![feature(c_void_variant)]
- #![feature(drain_filter)]
- #![feature(is_some_and)]
- #![feature(naked_functions)]
- #![feature(panic_info_message)]
- #![feature(ptr_internals)]
- #![feature(trait_upcasting)]
- #![feature(slice_ptr_get)]
- #![feature(vec_into_raw_parts)]
- #![feature(new_uninit)]
- #![feature(ptr_to_from_bits)]
- #![feature(concat_idents)]
- #![cfg_attr(target_os = "none", no_std)]
- #[cfg(test)]
- #[macro_use]
- extern crate std;
- #[allow(non_upper_case_globals)]
- #[allow(non_camel_case_types)]
- #[allow(non_snake_case)]
- use core::panic::PanicInfo;
- /// 导出x86_64架构相关的代码,命名为arch模块
- #[macro_use]
- mod arch;
- #[macro_use]
- mod libs;
- #[macro_use]
- mod include;
- mod driver; // 如果driver依赖了libs,应该在libs后面导出
- mod exception;
- mod filesystem;
- mod init;
- mod ipc;
- mod mm;
- mod net;
- mod process;
- mod sched;
- mod smp;
- mod syscall;
- mod time;
- mod virt;
- #[macro_use]
- extern crate alloc;
- #[macro_use]
- extern crate bitflags;
- extern crate elf;
- #[macro_use]
- extern crate lazy_static;
- extern crate memoffset;
- extern crate num;
- #[macro_use]
- extern crate num_derive;
- extern crate smoltcp;
- extern crate thingbuf;
- #[macro_use]
- extern crate intertrait;
- #[cfg(target_arch = "x86_64")]
- extern crate x86;
- use crate::mm::allocator::kernel_allocator::KernelAllocator;
- use crate::process::ProcessManager;
- // 声明全局的分配器
- #[cfg_attr(not(test), global_allocator)]
- pub static KERNEL_ALLOCATOR: KernelAllocator = KernelAllocator;
- /// 全局的panic处理函数
- #[cfg(target_os = "none")]
- #[panic_handler]
- #[no_mangle]
- pub fn panic(info: &PanicInfo) -> ! {
- kerror!("Kernel Panic Occurred.");
- match info.location() {
- Some(loc) => {
- println!(
- "Location:\n\tFile: {}\n\tLine: {}, Column: {}",
- loc.file(),
- loc.line(),
- loc.column()
- );
- }
- None => {
- println!("No location info");
- }
- }
- match info.message() {
- Some(msg) => {
- println!("Message:\n\t{}", msg);
- }
- None => {
- println!("No panic message.");
- }
- }
- println!("Current PCB:\n\t{:?}", *(ProcessManager::current_pcb()));
- ProcessManager::exit(usize::MAX);
- }
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