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runtime/panic: prevent nested panic and added core ID in panic msg.

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pca006132 2020-07-16 16:24:27 +08:00 committed by Gitea
parent 16158acfa9
commit caef2a9f84
1 changed files with 13 additions and 0 deletions
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13
src/runtime/src/panic.rs
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@ -1,8 +1,21 @@
use libboard_zynq::{print, println}; use libboard_zynq::{print, println};
use libregister::RegisterR;
use libcortex_a9::regs::MPIDR;
use unwind::backtrace; use unwind::backtrace;
static mut PANICKED: [bool; 2] = [false; 2];
#[panic_handler] #[panic_handler]
fn panic(info: &core::panic::PanicInfo) -> ! { fn panic(info: &core::panic::PanicInfo) -> ! {
let id = MPIDR.read().cpu_id() as usize;
print!("Core {} ", id);
unsafe {
if PANICKED[id] {
println!("nested panic!");
loop {}
}
PANICKED[id] = true;
}
print!("panic at "); print!("panic at ");
if let Some(location) = info.location() { if let Some(location) = info.location() {
print!("{}:{}:{}", location.file(), location.line(), location.column()); print!("{}:{}:{}", location.file(), location.line(), location.column());