mirror of
https://github.com/DragonOS-Community/DragonOS.git
synced 2025-06-09 15:26:47 +00:00
153 lines
3.4 KiB
Rust
153 lines
3.4 KiB
Rust
#![no_main] // <1>
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#![feature(alloc_error_handler)]
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#![feature(allocator_api)]
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#![feature(arbitrary_self_types)]
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#![feature(asm_const)]
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#![feature(concat_idents)]
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#![feature(const_for)]
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#![feature(const_mut_refs)]
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#![feature(const_trait_impl)]
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#![feature(const_transmute_copy)]
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#![feature(const_refs_to_cell)]
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#![feature(core_intrinsics)]
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#![feature(c_void_variant)]
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#![feature(extract_if)]
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#![feature(fn_align)]
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#![feature(inline_const)]
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#![feature(naked_functions)]
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#![feature(new_uninit)]
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#![feature(panic_info_message)]
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#![feature(ptr_internals)]
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#![feature(ptr_to_from_bits)]
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#![feature(trait_upcasting)]
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#![feature(slice_ptr_get)]
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#![feature(vec_into_raw_parts)]
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#![cfg_attr(target_os = "none", no_std)]
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// clippy的配置
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#![deny(clippy::all)]
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#![allow(clippy::bad_bit_mask)]
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// DragonOS允许在函数中使用return语句（尤其是长函数时，我们推荐这么做）
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#![allow(clippy::let_and_return)]
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#![allow(clippy::needless_pass_by_ref_mut)]
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#![allow(clippy::needless_return)]
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#![allow(clippy::single_char_pattern)]
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#![allow(clippy::upper_case_acronyms)]
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#[cfg(test)]
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#[macro_use]
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extern crate std;
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use core::panic::PanicInfo;
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/// 导出x86_64架构相关的代码，命名为arch模块
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#[macro_use]
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mod arch;
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#[macro_use]
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mod libs;
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#[macro_use]
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mod include;
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mod debug;
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mod driver; // 如果driver依赖了libs，应该在libs后面导出
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mod exception;
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mod filesystem;
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mod init;
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mod ipc;
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mod misc;
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mod mm;
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mod net;
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mod process;
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mod sched;
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mod smp;
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mod syscall;
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mod time;
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#[cfg(target_arch = "x86_64")]
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mod virt;
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#[macro_use]
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extern crate alloc;
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#[macro_use]
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extern crate atomic_enum;
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#[macro_use]
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extern crate bitflags;
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extern crate elf;
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#[macro_use]
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extern crate lazy_static;
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extern crate num;
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#[macro_use]
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extern crate num_derive;
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extern crate smoltcp;
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#[macro_use]
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extern crate intertrait;
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#[cfg(target_arch = "x86_64")]
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extern crate x86;
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extern crate klog_types;
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extern crate uefi;
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extern crate uefi_raw;
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use crate::mm::allocator::kernel_allocator::KernelAllocator;
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use crate::process::ProcessManager;
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#[cfg(all(feature = "backtrace", target_arch = "x86_64"))]
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extern crate mini_backtrace;
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extern "C" {
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fn lookup_kallsyms(addr: u64, level: i32) -> i32;
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}
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// 声明全局的分配器
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#[cfg_attr(not(test), global_allocator)]
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pub static KERNEL_ALLOCATOR: KernelAllocator = KernelAllocator;
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/// 全局的panic处理函数
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#[cfg(target_os = "none")]
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#[panic_handler]
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#[no_mangle]
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pub fn panic(info: &PanicInfo) -> ! {
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use log::error;
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error!("Kernel Panic Occurred.");
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match info.location() {
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Some(loc) => {
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println!(
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"Location:\n\tFile: {}\n\tLine: {}, Column: {}",
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loc.file(),
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loc.line(),
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loc.column()
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);
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}
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None => {
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println!("No location info");
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}
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}
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match info.message() {
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Some(msg) => {
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println!("Message:\n\t{}", msg);
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}
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None => {
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println!("No panic message.");
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}
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}
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#[cfg(all(feature = "backtrace", target_arch = "x86_64"))]
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{
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unsafe {
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let bt = mini_backtrace::Backtrace::<16>::capture();
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println!("Rust Panic Backtrace:");
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let mut level = 0;
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for frame in bt.frames {
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lookup_kallsyms(frame as u64, level);
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level += 1;
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}
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};
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}
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println!("Current PCB:\n\t{:?}", (ProcessManager::current_pcb()));
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ProcessManager::exit(usize::MAX);
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}
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