A library for acquiring backtraces at runtime for Rust. This library aims to enhance the support of the standard library by providing a programmatic interface to work with, but it also supports simply easily printing the current backtrace like libstd's panics.
toml
[dependencies]
backtrace = "0.3"
Note that this crate requires cc and ar to be present on Unix systems when
libbacktrace is used (which is the default). For configuring C compilers see
the cc crate documentation.
To simply capture a backtrace and defer dealing with it until a later time,
you can use the top-level Backtrace type.
```rust extern crate backtrace;
use backtrace::Backtrace;
fn main() { let bt = Backtrace::new();
// do_some_work();
println!("{:?}", bt);
} ```
If, however, you'd like more raw access to the actual tracing functionality, you
can use the trace and resolve functions directly.
```rust extern crate backtrace;
fn main() { backtrace::trace(|frame| { let ip = frame.ip(); let symboladdress = frame.symboladdress();
// Resolve this instruction pointer to a symbol name
backtrace::resolve_frame(frame, |symbol| {
if let Some(name) = symbol.name() {
// ...
}
if let Some(filename) = symbol.filename() {
// ...
}
});
true // keep going to the next frame
});
} ```
This project is licensed under either of
at your option.
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in backtrace-rs by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.