On 5/13/15, [email protected] <[email protected]> wrote: > When you build a library, the location of the source files is written into > the debug information which is stored in the dSYM. When you are in the > debugger and stop in some code from that library, lldb uses the debug info > to figure out where you have stopped, and load the source for that location. > The debug information tells it the location on the build machine, but > there's nothing to tell us where the sources are on the debugging machine. > You have to do that by hand. > > The way to do that in lldb is to set the "target.source-map" setting. So > for instance, if on the builder your project was in > /Volumes/Builder/Sources, and on the users machine the sources are in > /Volumes/TheirDisk/Sources, you would say: > > (lldb) settings set target.source-map /Volumes/Builder/Sources > /Volumes/TheirDisk/Sources > > Then lldb will take any source file that claims to be under the original > hierarchy, and look for it under the new hierarchy instead. > > If you don't know the original build directory, just do: > > (lldb) image lookup -vn <SomeFunctionInTheLibrary> > > and one of the output lines will be the CompileUnit. That will show the > path to the source file that was in the DWARF. This generally isn't at the > top level of the build hierarchy, so you'll need to go back a couple of > directories. You can generally tell what the common base is from looking at > the sources you've downloaded. > > Jim >
That is very useful information. Thank you! A couple of follow up questions. - I actually have a dozen or so libraries. Is it possible to set multiple maps at the same time if they don't share a common root? - I noticed that Xcode is not remembering what I set between runs. The lldb up-arrow history helps, but is there a way to make this a little more persistent? - Or maybe, is there a way I could use something like awk/sed/Perl to rewrite the paths for the user's copies of the .dSYM and .a files so re-entering in lldb isn't required every single time? Thanks, Eric -- Beginning iPhone Games Development http://playcontrol.net/iphonegamebook/ _______________________________________________ Do not post admin requests to the list. They will be ignored. Xcode-users mailing list ([email protected]) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/xcode-users/archive%40mail-archive.com This email sent to [email protected]
