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67 lines
1.2 KiB
67 lines
1.2 KiB
#![no_std]
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#![no_main]
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#![feature(panic_info_message)]
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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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#[cfg(feature = "board_k210")]
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#[path = "boards/k210.rs"]
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mod board;
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#[cfg(not(any(feature = "board_k210")))]
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#[path = "boards/qemu.rs"]
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mod board;
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#[macro_use]
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mod console;
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mod config;
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mod drivers;
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mod fs;
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mod lang_items;
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mod mm;
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mod sbi;
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mod sync;
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mod syscall;
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mod task;
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mod timer;
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mod trap;
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core::arch::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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unsafe {
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core::slice::from_raw_parts_mut(sbss as usize as *mut u8, ebss as usize - sbss as usize)
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.fill(0);
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}
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}
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use lazy_static::*;
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use sync::UPIntrFreeCell;
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lazy_static! {
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pub static ref DEV_NON_BLOCKING_ACCESS: UPIntrFreeCell<bool> =
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unsafe { UPIntrFreeCell::new(false) };
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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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mm::init();
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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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board::device_init();
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fs::list_apps();
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task::add_initproc();
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*DEV_NON_BLOCKING_ACCESS.exclusive_access() = true;
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task::run_tasks();
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panic!("Unreachable in rust_main!");
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}
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