1 #![no_main] // <1> 2 #![feature(alloc_error_handler)] 3 #![feature(allocator_api)] 4 #![feature(arbitrary_self_types)] 5 #![feature(asm_const)] 6 #![feature(const_mut_refs)] 7 #![feature(const_trait_impl)] 8 #![feature(const_refs_to_cell)] 9 #![feature(core_intrinsics)] 10 #![feature(c_void_variant)] 11 #![feature(drain_filter)] 12 #![feature(is_some_and)] 13 #![feature(naked_functions)] 14 #![feature(panic_info_message)] 15 #![feature(ptr_internals)] 16 #![feature(trait_upcasting)] 17 #![feature(slice_ptr_get)] 18 #![feature(vec_into_raw_parts)] 19 #![feature(new_uninit)] 20 #![feature(ptr_to_from_bits)] 21 #![feature(concat_idents)] 22 #![cfg_attr(target_os = "none", no_std)] 23 24 #[cfg(test)] 25 #[macro_use] 26 extern crate std; 27 28 #[allow(non_upper_case_globals)] 29 #[allow(non_camel_case_types)] 30 #[allow(non_snake_case)] 31 use core::panic::PanicInfo; 32 33 /// 导出x86_64架构相关的代码，命名为arch模块 34 #[macro_use] 35 mod arch; 36 #[macro_use] 37 mod libs; 38 #[macro_use] 39 mod include; 40 mod driver; // 如果driver依赖了libs，应该在libs后面导出 41 mod exception; 42 mod filesystem; 43 mod init; 44 mod ipc; 45 mod mm; 46 mod net; 47 mod process; 48 mod sched; 49 mod smp; 50 mod syscall; 51 mod time; 52 mod virt; 53 54 #[macro_use] 55 extern crate alloc; 56 #[macro_use] 57 extern crate bitflags; 58 extern crate elf; 59 #[macro_use] 60 extern crate lazy_static; 61 extern crate memoffset; 62 extern crate num; 63 #[macro_use] 64 extern crate num_derive; 65 extern crate smoltcp; 66 extern crate thingbuf; 67 #[macro_use] 68 extern crate intertrait; 69 #[cfg(target_arch = "x86_64")] 70 extern crate x86; 71 72 use crate::mm::allocator::kernel_allocator::KernelAllocator; 73 74 use crate::process::ProcessManager; 75 76 // 声明全局的分配器 77 #[cfg_attr(not(test), global_allocator)] 78 pub static KERNEL_ALLOCATOR: KernelAllocator = KernelAllocator; 79 80 /// 全局的panic处理函数 81 #[cfg(target_os = "none")] 82 #[panic_handler] 83 #[no_mangle] 84 pub fn panic(info: &PanicInfo) -> ! { 85 kerror!("Kernel Panic Occurred."); 86 87 match info.location() { 88 Some(loc) => { 89 println!( 90 "Location:\n\tFile: {}\n\tLine: {}, Column: {}", 91 loc.file(), 92 loc.line(), 93 loc.column() 94 ); 95 } 96 None => { 97 println!("No location info"); 98 } 99 } 100 101 match info.message() { 102 Some(msg) => { 103 println!("Message:\n\t{}", msg); 104 } 105 None => { 106 println!("No panic message."); 107 } 108 } 109 110 println!("Current PCB:\n\t{:?}", *(ProcessManager::current_pcb())); 111 ProcessManager::exit(usize::MAX); 112 } 113