Patch: DWARF browser

[Tristan Gingold]

On Apr 26, 2011, at 10:09 PM, Tom Tromey wrote:

> I have been wanting a nicer way to browse DWARF, so I came up with the
> appended.  It is an Emacs mode for DWARF browsing, plus a couple of new
> supporting readelf features.
> 
> The simplest way to browse is just M-x dwarf-browse, then enter a file
> name.  This will show a high-level view of the debug info (just the CU
> DIEs).  If you want to see more details, you can click or RET on the
> `...' fields, and the mode will expand more DIEs.
> 
> The mode has a bit of font-lock support and it also has support for
> following DIE references (pushing the mark while doing so).
> 
> I needed 2 readelf features to make this work nicely.  One, a way to
> elide DIEs at a certain depth.  Two, a way to then print sibling DIEs
> starting with a certain DIE.
> 
> I don't know if you'd want the .el code in binutils or not.  It is no
> problem if not, I will just put it in ELPA.  I'll probably add features
> to it as I need them.
> 
> It would be handy if the readelf changes could go in regardless of what
> happens to the lisp code.
> 
> Let me know what you think.

Comment from a non-elf dwarf user:

* thank you for working on that.

* You'd better to base on objdump instead of readelf.  objdump provides the same functionalities as readelf (for the dwarf part), but it support more file formats.

Tristan.