36 lines
993 B
Rust
36 lines
993 B
Rust
//! Redirecting `panic!` messages
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//!
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//! The `cortex-m-rt` crate provides two options to redirect `panic!` messages
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//! through these two Cargo features:
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//!
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//! - `panic-over-semihosting`. `panic!` messages will be printed to the OpenOCD
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//! console using semihosting. This is slow.
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//!
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//! - `panic-over-itm`. `panic!` messages will be send through the ITM port 0.
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//! This is much faster but requires ITM support on the device.
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//!
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//! If neither of these options is specified then the `panic!` message will be
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//! lost. Note that all `panic!`s will trigger a debugger breakpoint.
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#![feature(used)]
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#![no_std]
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extern crate cortex_m;
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extern crate cortex_m_rt;
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use cortex_m::asm;
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fn main() {
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panic!("Oops");
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}
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// As we are not using interrupts, we just register a dummy catch all handler
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#[allow(dead_code)]
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#[used]
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#[link_section = ".rodata.interrupts"]
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static INTERRUPTS: [extern "C" fn(); 240] = [default_handler; 240];
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extern "C" fn default_handler() {
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asm::bkpt();
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}
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