<div dir="ltr">what if the logic was changed to do what it does now, but if the "set breakpoint" returns 0 locations, then try again with <span style="font-family:arial,sans-serif;font-size:13px">target.inline-breakpoint-</span><span style="font-family:arial,sans-serif;font-size:13px">strategy set?</span><div><br></div><div><div><span style="font-family:arial,sans-serif;font-size:13px"><br></span></div><div><span style="font-family:arial,sans-serif;font-size:13px"><br></span></div></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Sep 18, 2014 at 3:41 PM, Greg Clayton <span dir="ltr"><<a href="mailto:gclayton@apple.com" target="_blank">gclayton@apple.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Because it vastly improves performance for large Objective C and C++ projects when setting file and line breakpoints. See our troubleshooting page for more details:<br>
<br>
<a href="http://lldb.llvm.org/troubleshooting.html" target="_blank">http://lldb.llvm.org/troubleshooting.html</a><br>
<br>
<br>
> On Sep 18, 2014, at 3:38 PM, Doug Snyder <<a href="mailto:dsnyder@blueshiftinc.com">dsnyder@blueshiftinc.com</a>> wrote:<br>
><br>
> adding that setting to .lldbinit appears to fix all three cases (ccache, preprocess and include). this was tested in xcode with individual test cases that i created.<br>
><br>
> i wonder why that setting is not on by default?<br>
><br>
><br>
><br>
><br>
> On Thu, Sep 18, 2014 at 1:42 PM, Todd Fiala <<a href="mailto:tfiala@google.com">tfiala@google.com</a>> wrote:<br>
> Hey Doug,<br>
><br>
> Can you give Jim's suggestin a try and see if that affects anything?<br>
><br>
> Thanks,<br>
> Todd<br>
><br>
> On Wed, Sep 17, 2014 at 2:39 PM, <<a href="mailto:jingham@apple.com">jingham@apple.com</a>> wrote:<br>
> Are any of these bugs fixed by setting:<br>
><br>
> settings set target.inline-breakpoint-strategy always<br>
><br>
> in your .lldbinit file?<br>
><br>
> Jim<br>
><br>
> > On Sep 17, 2014, at 10:34 AM, Doug Snyder <<a href="mailto:dsnyder@blueshiftinc.com">dsnyder@blueshiftinc.com</a>> wrote:<br>
> ><br>
> > i have been investigating several lldb bugs that seem to be related.<br>
> ><br>
> > bug 19974 describes lldb's inability to set a breakpoint in an included file and bug 20297 describes lldb's inability to set a breakpoint when using ccache. i have also found a similar case where lldb is unable to set a breakpoint when a separate preprocess step has been used before compiling.<br>
> ><br>
> > note: ccache uses a preprocess step to determine which source files need to be rebuilt so using ccache could be considered the same as using a separate preprocess step.<br>
> ><br>
> > all three cases are similar in that the c/c++ preprocessor is involved and alters the way symbols are added to the object files.<br>
> ><br>
> > the following attached files are write-ups of some of my findings for the different cases<br>
> > ccache - "lldb and ccache.rtf"<br>
> > preprocessed files - "lldb and preprocessed files.rtf"<br>
> > include files - "lldb and include files.rtf"<br>
> ><br>
> > all three cases generate the inability to set breakpoints<br>
> ><br>
> > on the Mac, all three cases create object files with "SOL" symbols for preprocessed or included source files.<br>
> ><br>
> > the following attached file describes the object files created for the preprocessed test case on the Mac:<br>
> > "preprocessed object files.rtf"<br>
> ><br>
> > on ubuntu, it is not as obvious to spot differences in the object files when examining object files that that lldb is unable to set breakpoints.<br>
> ><br>
> > lldb is unable to set breakpoints on both OSX and ubuntu for all three cases. gdb is able to set breakpoints on both OSX and ubuntu for all three cases.<br>
> ><br>
> > using XCode, i have tried a couple different ways of stepping through lldb to see why it is having trouble setting breakpoints.<br>
> ><br>
> > From top-down, i have traced setting breakpoints in Breakpoint.cpp down thru BreakpointResolver.cpp. The intended source file does not seem to be in the list of compute units, but i don't know why.<br>
> ><br>
> > From bottom-up, i have tried to follow how ObjectFileMachO.cpp parses symbols, but i'm not sure that this is the correct place to look. Also, since this is both a MachO problem and an Elf problem, the problem isn't likely to be here anyway.<br>
> ><br>
> > Does anyone familiar with lldb's architecture have any ideas where in the code i should be looking or have a plan-of-attack to suggest?<br>
> ><br>
> > thanks,<br>
> > doug<br>
> ><br>
> ><br>
> ><br>
> ><br>
> > <lldb and ccache.rtf><lldb and preprocessed files.rtf><preprocessed object files.rtf><lldb and include files.rtf>_______________________________________________<br>
> > lldb-dev mailing list<br>
> > <a href="mailto:lldb-dev@cs.uiuc.edu">lldb-dev@cs.uiuc.edu</a><br>
> > <a href="http://lists.cs.uiuc.edu/mailman/listinfo/lldb-dev" target="_blank">http://lists.cs.uiuc.edu/mailman/listinfo/lldb-dev</a><br>
><br>
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><br>
<span class="HOEnZb"><font color="#888888">><br>
> --<br>
> Todd Fiala | Software Engineer | <a href="mailto:tfiala@google.com">tfiala@google.com</a> | <a href="tel:650-943-3180" value="+16509433180">650-943-3180</a><br>
><br>
><br>
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</font></span></blockquote></div><br></div>