forked from M-Labs/artiq-zynq
Backtrace: panic handler with proper backtrace.
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@ -39,6 +39,7 @@ mod llvm_libunwind {
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let cfg = &mut cc::Build::new();
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setup_options(cfg);
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cfg.compiler("clang");
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cfg.flag("-funwind-tables");
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let unwind_sources = vec![
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"Unwind-sjlj.c",
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@ -2,6 +2,8 @@
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#![no_main]
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#![recursion_limit="1024"] // for futures_util::select!
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#![feature(llvm_asm)]
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#![feature(alloc_error_handler)]
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#![feature(panic_info_message)]
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extern crate alloc;
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@ -24,6 +26,7 @@ mod kernel;
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mod moninj;
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mod load_pl;
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mod eh_artiq;
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mod panic;
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fn identifier_read(buf: &mut [u8]) -> &str {
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unsafe {
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@ -0,0 +1,26 @@
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use libboard_zynq::{slcr, print, println};
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use unwind::backtrace;
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#[panic_handler]
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fn panic(info: &core::panic::PanicInfo) -> ! {
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print!("panic at ");
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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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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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println!("{:#08x}", ip - 2 * 4);
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});
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println!("End backtrace");
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slcr::RegisterBlock::unlocked(|slcr| slcr.soft_reset());
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loop {}
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}
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