48 lines
1.0 KiB
Rust
48 lines
1.0 KiB
Rust
#![feature(asm, alloc_error_handler)]
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#![no_std]
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use core::panic::PanicInfo;
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use libsys::proc::ExitCode;
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pub mod io;
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pub mod os;
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pub mod file;
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pub mod sys {
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pub use libsys::signal::{Signal, SignalDestination};
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pub use libsys::termios;
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pub use libsys::calls::*;
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pub use libsys::stat::{self, FileDescriptor};
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}
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#[inline(never)]
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extern "C" fn _signal_handler(arg: sys::Signal) -> ! {
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trace!("Entered signal handler: arg={:?}", arg);
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unsafe {
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sys::sys_ex_sigreturn();
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}
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}
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static mut SIGNAL_STACK: [u8; 4096] = [0; 4096];
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#[link_section = ".text._start"]
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#[no_mangle]
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extern "C" fn _start(_arg: usize) -> ! {
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extern "Rust" {
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fn main() -> i32;
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}
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unsafe {
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SIGNAL_STACK[0] = 1;
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sys::sys_ex_signal(_signal_handler as usize, SIGNAL_STACK.as_ptr() as usize + 4096);
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sys::sys_exit(ExitCode::from(main()));
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}
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}
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#[panic_handler]
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fn panic_handler(pi: &PanicInfo) -> ! {
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// TODO formatted messages
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trace!("Panic ocurred: {}", pi);
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sys::sys_exit(ExitCode::from(-1));
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}
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