12813126eSlogin #![no_main] // <1> 2bb24249fSLoGin #![feature(alloc_error_handler)] 340fe15e0SLoGin #![feature(allocator_api)] 440fe15e0SLoGin #![feature(arbitrary_self_types)] 51496ba7bSLoGin #![feature(asm_const)] 65c4224e5SLoGin #![feature(concat_idents)] 7c566df45SLoGin #![feature(const_for)] 8935f40ecSlogin #![feature(const_mut_refs)] 906d5e247SLoGin #![feature(const_trait_impl)] 10a03c4f9dSLoGin #![feature(const_refs_to_cell)] 1140fe15e0SLoGin #![feature(core_intrinsics)] 1213776c11Slogin #![feature(c_void_variant)] 131a72a751SLoGin #![feature(extract_if)] 145c4224e5SLoGin #![feature(fn_align)] 151496ba7bSLoGin #![feature(naked_functions)] 165c4224e5SLoGin #![feature(new_uninit)] 17bb24249fSLoGin #![feature(ptr_internals)] 18cde5492fSlogin #![feature(trait_upcasting)] 1940fe15e0SLoGin #![feature(slice_ptr_get)] 20*bd70d2d1SLoGin #![feature(sync_unsafe_cell)] 2140fe15e0SLoGin #![feature(vec_into_raw_parts)] 22fba56231SLoGin #![cfg_attr(target_os = "none", no_std)] 23*bd70d2d1SLoGin #![allow(internal_features)] 24840045afSLoGin // clippy的配置 25840045afSLoGin #![deny(clippy::all)] 26b5b571e0SLoGin #![allow(clippy::bad_bit_mask)] 27840045afSLoGin // 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) 28840045afSLoGin #![allow(clippy::let_and_return)] 29840045afSLoGin #![allow(clippy::needless_pass_by_ref_mut)] 30840045afSLoGin #![allow(clippy::needless_return)] 31b5b571e0SLoGin #![allow(clippy::single_char_pattern)] 32840045afSLoGin #![allow(clippy::upper_case_acronyms)] 33fba56231SLoGin 34fba56231SLoGin #[cfg(test)] 35fba56231SLoGin #[macro_use] 36fba56231SLoGin extern crate std; 3740fe15e0SLoGin 38fb6c29d0Slogin use core::panic::PanicInfo; 39fb6c29d0Slogin 40adc1846bSlogin /// 导出x86_64架构相关的代码,命名为arch模块 4166f67c6aSlogin #[macro_use] 4266f67c6aSlogin mod arch; 4382d2e446Slogin #[macro_use] 44fb6c29d0Slogin mod libs; 45004e86ffSlogin #[macro_use] 46004e86ffSlogin mod include; 477b32f508SLoGin mod debug; 48004e86ffSlogin mod driver; // 如果driver依赖了libs,应该在libs后面导出 49ec53d23eSlogin mod exception; 50004e86ffSlogin mod filesystem; 51fba56231SLoGin mod init; 52004e86ffSlogin mod ipc; 53196b75dcSLoGin mod misc; 5466f67c6aSlogin mod mm; 554454d1a2Slogin mod net; 5666f67c6aSlogin mod process; 5766f67c6aSlogin mod sched; 5866f67c6aSlogin mod smp; 594454d1a2Slogin mod syscall; 6001876902SGou Ngai mod time; 614fda81ceSLoGin 624fda81ceSLoGin #[cfg(target_arch = "x86_64")] 6340314b30SXiaoye Zheng mod virt; 6482d2e446Slogin 65004e86ffSlogin #[macro_use] 66fb6c29d0Slogin extern crate alloc; 67c2481452Shoumkh #[macro_use] 68393f6915SLoGin extern crate atomic_enum; 69393f6915SLoGin #[macro_use] 704454d1a2Slogin extern crate bitflags; 7140fe15e0SLoGin extern crate elf; 724454d1a2Slogin #[macro_use] 73c2481452Shoumkh extern crate lazy_static; 744454d1a2Slogin extern crate num; 75004e86ffSlogin #[macro_use] 764454d1a2Slogin extern crate num_derive; 774454d1a2Slogin extern crate smoltcp; 78fba56231SLoGin #[macro_use] 79fba56231SLoGin extern crate intertrait; 80bacd691cSlogin #[cfg(target_arch = "x86_64")] 81bacd691cSlogin extern crate x86; 82bacd691cSlogin 837b32f508SLoGin extern crate klog_types; 847a29d4fcSLoGin extern crate uefi; 857a29d4fcSLoGin extern crate uefi_raw; 867b32f508SLoGin 8740fe15e0SLoGin use crate::mm::allocator::kernel_allocator::KernelAllocator; 882813126eSlogin 891496ba7bSLoGin use crate::process::ProcessManager; 90fb6c29d0Slogin 914fda81ceSLoGin #[cfg(all(feature = "backtrace", target_arch = "x86_64"))] 92d470019bSLoGin extern crate mini_backtrace; 93d470019bSLoGin 94d470019bSLoGin extern "C" { 95d470019bSLoGin fn lookup_kallsyms(addr: u64, level: i32) -> i32; 96d470019bSLoGin } 97d470019bSLoGin 98abe3a6eaShanjiezhou // 声明全局的分配器 99fb6c29d0Slogin #[cfg_attr(not(test), global_allocator)] 10040fe15e0SLoGin pub static KERNEL_ALLOCATOR: KernelAllocator = KernelAllocator; 101fb6c29d0Slogin 102fb6c29d0Slogin /// 全局的panic处理函数 103fba56231SLoGin #[cfg(target_os = "none")] 1042813126eSlogin #[panic_handler] 1052813126eSlogin #[no_mangle] 10666f67c6aSlogin pub fn panic(info: &PanicInfo) -> ! { 1072eab6dd7S曾俊 use log::error; 1082eab6dd7S曾俊 1092eab6dd7S曾俊 error!("Kernel Panic Occurred."); 11066f67c6aSlogin 11166f67c6aSlogin match info.location() { 11266f67c6aSlogin Some(loc) => { 11366f67c6aSlogin println!( 11466f67c6aSlogin "Location:\n\tFile: {}\n\tLine: {}, Column: {}", 11566f67c6aSlogin loc.file(), 11666f67c6aSlogin loc.line(), 11766f67c6aSlogin loc.column() 11866f67c6aSlogin ); 11966f67c6aSlogin } 12066f67c6aSlogin None => { 12166f67c6aSlogin println!("No location info"); 12266f67c6aSlogin } 12366f67c6aSlogin } 124*bd70d2d1SLoGin println!("Message:\n\t{}", info.message()); 12566f67c6aSlogin 1264fda81ceSLoGin #[cfg(all(feature = "backtrace", target_arch = "x86_64"))] 127d470019bSLoGin { 128d470019bSLoGin unsafe { 129d470019bSLoGin let bt = mini_backtrace::Backtrace::<16>::capture(); 130d470019bSLoGin println!("Rust Panic Backtrace:"); 131d470019bSLoGin let mut level = 0; 132d470019bSLoGin for frame in bt.frames { 133d470019bSLoGin lookup_kallsyms(frame as u64, level); 134d470019bSLoGin level += 1; 135d470019bSLoGin } 136d470019bSLoGin }; 137d470019bSLoGin } 138d470019bSLoGin 1392755467cS曾俊 println!("Current PCB:\n\t{:?}", (ProcessManager::current_pcb())); 140471d65cfSLoGin 1411496ba7bSLoGin ProcessManager::exit(usize::MAX); 1422813126eSlogin } 143