On Mon, Oct 15, 2012 at 09:49:59 -0700, Greg Clayton wrote: > > On Oct 15, 2012, at 3:09 AM, Martin Milata <[email protected]> wrote: > > > Hello, > > I would like to write a simple tool that, given a Linux core dump, > > produces a list of variables and their values (for those variables for > > which it can be determined). I'm considering writing the tool on top of > > LLDB. > > That should be easy. > > > If I understand correctly, there is no support for Linux cores in LLDB. > > Correct, there is no linux core support currently. > > > > What would it take to implement it? > > We support mach-o core files, so there is some great example code that > should be easy to adapt. The the mach-o core file example plug-in: > > lldb/source/Plugins/Process/mach-core > > > > Is it just a matter of implementing > > the Process subclass for Linux cores? > > Yes, see very simple and quick example in > lldb/source/Plugins/Process/mach-core. Basically the linux plug-in > will need to recognize linux core files and know how to parse them. I > am not sure what the linux core file format is. On MacOSX, our core > files are just mach-o files (very similar to executable files). As > long as the linux core file is an ELF file, you should be good to go > and the port should be easy. If not, you will need to write a > "ObjectFile" subclass to parse the core file, or just parse it > manually in your ProcessLinuxCore (you might want to name this > ProcessELFCore if it is not tied to linux).
Yes, linux cores are indeed ELF files. > > Or is there any other Linux-related functionality missing? > > There is a lot of work going on for Linux right now, so it should be > pretty functional as far as running/attaching. > > > I see that there is support for > > Linux processes but I haven't been successful in compiling LLDB yet, so > > I can not try it out myself. > > See the other messages on this build list. The message thread right > before you e-mail had details on how to successfully build on linux. Thanks for the information, Greg. Even though I really like the LLDB design and the linux core support seems like a fun little project, I have for other reasons decided not to use LLDB. So if anyone reading this would like to have this feature - go ahead, I'm not working on it;) Martin _______________________________________________ lldb-dev mailing list [email protected] http://lists.cs.uiuc.edu/mailman/listinfo/lldb-dev
