43 lines
936 B
Rust
43 lines
936 B
Rust
//! Overriding an exception
|
|
//!
|
|
//! **NOTE** You have to disable the `cortex-m-rt` crate "exceptions" feature to
|
|
//! make this work.
|
|
|
|
#![feature(used)]
|
|
#![no_std]
|
|
|
|
extern crate cortex_m;
|
|
extern crate cortex_m_rt;
|
|
extern crate {{name}};
|
|
|
|
use core::ptr;
|
|
|
|
use cortex_m::{asm, exception};
|
|
use {{name}}::interrupt;
|
|
|
|
fn main() {
|
|
unsafe {
|
|
// Invalid memory access
|
|
ptr::read_volatile(0x2FFF_FFFF as *const u32);
|
|
}
|
|
}
|
|
|
|
extern "C" fn hard_fault(_: exception::HardFault) {
|
|
// You'll hit this breakpoint rather than the one in cortex-m-rt
|
|
asm::bkpt()
|
|
}
|
|
|
|
#[allow(dead_code)]
|
|
#[used]
|
|
#[link_section = ".rodata.exceptions"]
|
|
static EXCEPTIONS: exception::Handlers = exception::Handlers {
|
|
hard_fault: hard_fault,
|
|
..exception::DEFAULT_HANDLERS
|
|
};
|
|
|
|
#[allow(dead_code)]
|
|
#[used]
|
|
#[link_section = ".rodata.interrupts"]
|
|
static INTERRUPTS: interrupt::Handlers =
|
|
interrupt::Handlers { ..interrupt::DEFAULT_HANDLERS };
|