A cross-platform library for retrieving per-address debug information from executables with DWARF debug symbols.
gimli to parse
the debug symbols of an executable, and exposes an interface for finding
the source file, line number, and wrapping function for instruction
addresses within the target program. These lookups can either be
performed programmatically through
Context::find_frames, or via the included example binary,
addr2line (named and modelled after the equivalent utility from
- Add the
objectcrate to your
- Add the
addr2linecrate to your
extern crate objectand
extern crate addr2lineto your main crate entry file
- Load the file and parse it with
- Pass the parsed file to
addr2line::Context::find_framesto look up debug information for an address
The library aims to perform similarly to equivalent existing tools such
addr2line from binutils,
eu-addr2line from elfutils, and
llvm-symbolize from the llvm project.
Currently the library optimizes for memory over for speed when parsing line number sequences. In particular, the algorithm used can be slow for large line sequences, but uses much less memory. Note that LLVM generates one line sequence per function, but gcc can include multiple functions in each line sequence.
We haven't done extensive benchmarking (yet), but the runtime and memory use results we observe for one relatively large Rust application are quite promising:
Licensed under either of
- Apache License, Version 2.0 (
- MIT license (
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.