no_sanitize

The tracking issue for this feature is: #39699

The no_sanitize attribute can be used to selectively disable sanitizer instrumentation in an annotated function. This might be useful to: avoid instrumentation overhead in a performance critical function, or avoid instrumenting code that contains constructs unsupported by given sanitizer.

The precise effect of this annotation depends on particular sanitizer in use. For example, with no_sanitize(thread), the thread sanitizer will no longer instrument non-atomic store / load operations, but it will instrument atomic operations to avoid reporting false positives and provide meaning full stack traces.

Examples

#![allow(unused)]
#![feature(no_sanitize)]

fn main() {
#[no_sanitize(address)]
fn foo() {
  // ...
}
}