forked from M-Labs/artiq-zynq
76 lines
2.2 KiB
Rust
76 lines
2.2 KiB
Rust
use libboard_zynq::{print, println};
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use libregister::RegisterR;
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use libcortex_a9::regs::MPIDR;
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use unwind::backtrace;
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#[cfg(feature = "target_kasli_soc")]
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use libboard_zynq::error_led::ErrorLED;
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use crate::comms::soft_panic_main;
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use log::error;
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use libboard_zynq::timer::GlobalTimer;
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use libconfig::Config;
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static mut PANICKED: [bool; 2] = [false; 2];
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static mut SOFT_PANICKED: bool = false;
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#[panic_handler]
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fn panic(info: &core::panic::PanicInfo) -> ! {
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let id = MPIDR.read().cpu_id() as usize;
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let soft_panicked = unsafe { SOFT_PANICKED };
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print!("Core {} panic at ", id);
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if let Some(location) = info.location() {
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print!("{}:{}:{}", location.file(), location.line(), location.column());
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} else {
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print!("unknown location");
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}
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if let Some(message) = info.message() {
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println!(": {}", message);
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} else {
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println!("");
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}
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unsafe {
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// soft panics only allowed for core 0
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if PANICKED[id] && (SOFT_PANICKED || id == 1) {
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println!("nested panic!");
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loop {}
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}
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SOFT_PANICKED = true;
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PANICKED[id] = true;
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}
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#[cfg(feature = "target_kasli_soc")]
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{
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let mut err_led = ErrorLED::error_led();
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err_led.toggle(true);
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}
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println!("Backtrace: ");
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let _ = backtrace(|ip| {
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// Backtrace gives us the return address, i.e. the address after the delay slot,
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// but we're interested in the call instruction.
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print!("{:#08x} ", ip - 2 * 4);
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});
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println!("\nEnd backtrace");
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if !soft_panicked && id == 0 {
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soft_panic(info);
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}
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loop {}
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}
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fn soft_panic(info: &core::panic::PanicInfo) -> ! {
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// write panic info to log, so coremgmt can also read it
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if let Some(location) = info.location() {
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error!("panic at {}:{}:{}", location.file(), location.line(), location.column());
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} else {
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error!("panic at unknown location");
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}
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if let Some(message) = info.message() {
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error!("panic message: {}", message);
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}
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let timer = GlobalTimer::start();
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let cfg = match Config::new() {
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Ok(cfg) => cfg,
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Err(_) => {
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Config::new_dummy()
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}
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};
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soft_panic_main(timer, cfg);
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} |