addr2line provides a cross-platform library for retrieving per-address debug information from files with DWARF debug information. Given an address, it can return the file name, line number, and function name associated with that address, as well as the inline call stack leading to that address.

The crate has a CLI wrapper around the library which provides some of the functionality of the addr2line command line tool distributed with GNU binutils.

• Add the addr2line crate to your Cargo.toml.
• Call addr2line::Loader::new with the file path.
• Use addr2line::Loader::find_location or addr2line::Loader::find_frames to look up debug information for an address.

If you want to provide your own file loading and memory management, use addr2line::Context instead of addr2line::Loader.

addr2line optimizes for speed over memory by caching parsed information. The DWARF information is parsed lazily where possible.

The library aims to perform similarly to equivalent existing tools such as addr2line from binutils, eu-addr2line from elfutils, and llvm-addr2line from the llvm project. Current benchmarks show a performance improvement in all cases:

Licensed under either of

• Apache License, Version 2.0 (LICENSE-APACHE or https://www.apache.org/licenses/LICENSE-2.0)
• MIT license (LICENSE-MIT or https://opensource.org/licenses/MIT)

at your option.

Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in the work by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.