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Updated README.md with libelf/libdwarf info

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Added information about libdwarf/libelf and additional API compatible implementations that could potentially be used.
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Pedro Navarro 2018-05-07 10:02:51 -07:00 committed by GitHub
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@ -149,7 +149,29 @@ Of course you can simply add the define (`-DBACKWARD_HAS_...=1`) and the
linkage details in your build system and even auto-detect which library is
installed, it's up to you.
That'ss it, you are all set, you should be getting nice stack traces like the
#### [libdwarf](https://sourceforge.net/projects/libdwarf/) and [libelf](http://www.mr511.de/software/english.html)
apt-get install libdwarf-dev (or equivalent)
And do not forget to link with the lib and inform Backward to use it:
#define BACKWARD_HAS_DWARF 1
There are several alternative implementations of libdwarf and libelf that
are API compatible so it's possible, although it hasn't been tested, to
replace the ones used when developing backward (in bold, below):
* **_libelf_** by [Michael "Tired" Riepe](http://www.mr511.de/software/english.html)
* **_libdwarf_** by [David Anderson](https://www.prevanders.net/dwarf.html)
* libelf from [elfutils](https://fedorahosted.org/elfutils/)
* libelf and libdwarf from FreeBSD's [ELF Tool Chain](https://sourceforge.net/p/elftoolchain/wiki/Home/) project
Of course you can simply add the define (`-DBACKWARD_HAS_...=1`) and the
linkage details in your build system and even auto-detect which library is
installed, it's up to you.
That's it, you are all set, you should be getting nice stack traces like the
one at the beginning of this document.
## API