[lldb-dev] Help needed: Multi-threaded debugging on OSX

[Jim Ingham]

The ability to embed the LLDB framework within a variety of applications is one of the main design goals for lldb, so this should certainly work.  You should look at the Driver.cpp code as a model for how to do this.  That code doesn't do anything particularly magical, and does not have the problems you cite...

Are you using debugserver & the gdb-remote process plugin in your code, or the MacOSX Native plugin?  The latter has bit-rotted since we've been focusing on the gdb-remote interface.  We plan to revive that at some point, but right now using the gdb-remote plugin is the way to go on MacOS X.

Jim


On Feb 19, 2011, at 9:32 AM, Tomas Nemec wrote:

> Hello,
> sorry to bother, I am looking for advise on OS X (Mach) debugging and since there are not many examples I figured this would be the best place to ask.
> 
> I am developing a graphical debugger for OSX - currently it runs as a GDB frontend. This is very cumbersome and slow though.
> I would like to either create my own mini debugger as a backend or possibly embed lldb.
> My mini debugger works but I found out that it is not reliable when trying to debug a multi-threaded target when more than 1 thread hits a breakpoint. Trying to single step then sometimes works and sometimes causes the target to exit...
> Could someone give me some pointers or help me if I share my code with you? (my code is quite small and not difficult to understand)
> Also could someone tell me whether it is difficult to embed lldb as a backend into my Cocoa frontend? Where should I start?
> 
> Many thanks,
> Kurt _______________________________________________
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Jim Ingham
Apple Developer Tools