46 lines
1 KiB
Rust
46 lines
1 KiB
Rust
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//! Intrinsics for panic handling
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use interrupt::halt;
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#[cfg(not(test))]
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#[lang = "eh_personality"]
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extern "C" fn eh_personality() {}
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#[cfg(not(test))]
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/// Required to handle panics
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#[lang = "panic_fmt"]
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extern "C" fn panic_fmt(fmt: ::core::fmt::Arguments, file: &str, line: u32) -> ! {
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let mut rbp: usize;
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unsafe { asm!("xchg bx, bx" : "={rbp}"(rbp) : : : "intel", "volatile"); }
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println!("PANIC: {}", fmt);
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println!("FILE: {}", file);
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println!("LINE: {}", line);
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println!("TRACE: {:>016X}", rbp);
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for i in 0..10 {
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unsafe {
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let rip = *(rbp as *const usize).offset(1);
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println!(" {:>016X}: {:>016X}", rbp, rip);
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if rip == 0 {
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break;
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}
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rbp = *(rbp as *const usize);
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}
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}
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println!("HALT");
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loop {
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unsafe { halt() };
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}
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}
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#[allow(non_snake_case)]
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#[no_mangle]
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/// Required to handle panics
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pub extern "C" fn _Unwind_Resume() -> ! {
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loop {
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unsafe { halt() }
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}
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}
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