Libelfin is a from-scratch C++11 library for reading ELF binaries and DWARFv4 debug information.
make, and optionally make install. You'll need GCC 4.7 or later.
Another way:
bash build.sh. You'll need cmake 3.12 or later.
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Native C++11 code and interface, designed from scratch to interact well with C++11 features, from range-based for loops to move semantics to enum classes.
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Libelfin fully implements parsing for Debugging Information Entries (DIEs), the core data structure used by the DWARF format, as well as most DWARFv4 tables.
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Supports all DWARFv4 DIE value types except location lists and macros.
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Nearly complete evaluator for DWARFv4 expressions and location descriptions.
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Complete interpreter for DWARFv4 line tables.
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Iterators for easily and naturally traversing compilation units, type units, DIE trees, and DIE attribute lists.
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Every enum value can be pretty-printed.
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Large collection of type-safe DIE attribute fetchers.
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Supports DWARF5, add signal handler and add function to convert function name to string.
Libelfin implements a syntactic layer for DWARF and ELF, but not a semantic layer. Interpreting the information stored in DWARF DIE trees still requires a great deal of understanding of DWARF, but libelfin will make sense of the bytes for you.
To build against libdwarf++, use, for example
g++ -std=c++11 a.cc $(pkg-config --cflags --libs libdwarf++)
To use a local build of libelfin, set PKG_CONFIG_PATH. For example,
export PKG_CONFIG_PATH=$PWD/elf:$PWD/dwarf
There are various example programs in examples/.
Another way:
LD_PRELOAD=$PWD/install/lib64/libstdc++.so workload
Libelfin is a good start. It's not production-ready and there are many parts of the DWARF specification it does not yet implement, but it's complete enough to be useful for many things and is a good deal more pleasant to use than every other debug info library I've tried.
Thanks to Austin T. Clements for contributing to the basic features of the software