74 lines
1.8 KiB
Markdown
74 lines
1.8 KiB
Markdown
# backtrace-rs
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[Documentation](https://docs.rs/backtrace)
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A library for acquiring backtraces at runtime for Rust. This library aims to
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enhance the support of the standard library by providing a programmatic
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interface to work with, but it also supports simply easily printing the current
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backtrace like libstd's panics.
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## Install
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```toml
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[dependencies]
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backtrace = "0.3"
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```
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## Usage
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To simply capture a backtrace and defer dealing with it until a later time,
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you can use the top-level `Backtrace` type.
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```rust
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use backtrace::Backtrace;
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fn main() {
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let bt = Backtrace::new();
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// do_some_work();
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println!("{:?}", bt);
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}
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```
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If, however, you'd like more raw access to the actual tracing functionality, you
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can use the `trace` and `resolve` functions directly.
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```rust
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fn main() {
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backtrace::trace(|frame| {
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let ip = frame.ip();
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let symbol_address = frame.symbol_address();
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// Resolve this instruction pointer to a symbol name
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backtrace::resolve_frame(frame, |symbol| {
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if let Some(name) = symbol.name() {
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// ...
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}
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if let Some(filename) = symbol.filename() {
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// ...
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}
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});
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true // keep going to the next frame
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});
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}
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```
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# License
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This project is licensed under either of
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* Apache License, Version 2.0, ([LICENSE-APACHE](LICENSE-APACHE) or
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https://www.apache.org/licenses/LICENSE-2.0)
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* MIT license ([LICENSE-MIT](LICENSE-MIT) or
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https://opensource.org/licenses/MIT)
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at your option.
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### Contribution
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Unless you explicitly state otherwise, any contribution intentionally submitted
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for inclusion in backtrace-rs by you, as defined in the Apache-2.0 license, shall be
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dual licensed as above, without any additional terms or conditions.
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