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52 lines
940 B
52 lines
940 B
#![no_std]
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#![no_main]
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#![feature(global_asm)]
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#![feature(llvm_asm)]
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#![feature(panic_info_message)]
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#![feature(const_in_array_repeat_expressions)]
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#![feature(alloc_error_handler)]
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extern crate alloc;
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#[macro_use]
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extern crate bitflags;
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#[macro_use]
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mod console;
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mod lang_items;
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mod sbi;
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mod syscall;
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mod trap;
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mod config;
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mod task;
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mod timer;
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mod mm;
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mod fs;
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mod drivers;
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global_asm!(include_str!("entry.asm"));
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fn clear_bss() {
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extern "C" {
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fn sbss();
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fn ebss();
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}
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(sbss as usize..ebss as usize).for_each(|a| {
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unsafe { (a as *mut u8).write_volatile(0) }
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});
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}
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#[no_mangle]
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pub fn rust_main() -> ! {
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clear_bss();
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println!("[kernel] Hello, world!");
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mm::init();
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mm::remap_test();
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trap::init();
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trap::enable_timer_interrupt();
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timer::set_next_trigger();
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fs::list_apps();
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task::add_initproc();
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task::run_tasks();
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panic!("Unreachable in rust_main!");
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} |