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