On 14 November 2014 01:48, Emil Velikov <emil.l.veli...@gmail.com> wrote: > Hi Steven, > > On 14 November 2014 01:40, Steven Stewart-Gallus > <sstewartgallu...@mylangara.bc.ca> wrote: >> But my distribution does build Mesa with debugging symbols. I have the >> package >> libgl1-mesa-dri-dbg installed which gives me debugging symbols such as >> drm_intel_bo_wait_rendering and drm_intel_bo_subdata. I assume I don't have >> is >> debugging information for JITted code although maybe the problem is a bug in >> perf (they've had problems with artificial intrinsics before.) Please assume >> I >> have at least the small quantity of intelligence needed to have installed the >> debugging symbols for the library I a. But tell me, what do you see when you >> profile glxgears with perf? >> > Let me put things a bit differently: the classic drivers (be that i965 > or any other) do _not_ use LLVM. So when you say that there are no > debug symbols for the JITted code. that does not make sense for > most(all?) people thus they assume the closest thing. Which is that > you're missing the debug symbols, therefore giving you instructions on > how to get them(rebuild mesa). > > So can you please tell us what makes you think that using the i965 > driver, goes into LLVM/JITted code ? > Perhaps having some sort of backtrace (I know the some functions names > will be ??) or a testcase might bring some light :) > For anyone interested/hitting this issue: It seems that the debug package did not provide the relevant files, causing this misunderstanding. Now that I think about it seems to be the exact same issue about Debian's build/packaging system [1]. So as a note of self - don't trust your distribution to always get it right, double check :P
-Emil [1] https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=755921 _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/mesa-dev
