https://bugs.freedesktop.org/show_bug.cgi?id=93103
Bug ID: 93103 Summary: llvm symbols leak through, cause trouble with software rendering in llvm-linked software Product: Mesa Version: 10.1 Hardware: Other OS: All Status: NEW Severity: normal Priority: medium Component: Drivers/X11 Assignee: mesa-dev@lists.freedesktop.org Reporter: t...@schlueters.de QA Contact: mesa-dev@lists.freedesktop.org libmesa uses llvm in its software rendering path. I'm trying to run via X forwarding (and thus using software rendering) a software project on ubuntu 14.04 that uses OpenGL for visualization and links against its own copy of llvm (via the root libraries, I don't think this matters, and they have recently put in place a workaround for this problem, their bug report is here https://sft.its.cern.ch/jira/browse/ROOT-7744). When loading the mesa libraries I get a backtrace that looks as follows (libCling is the interface to llvm): #5 0x00007f3eff60deb1 in llvm::cl::AddLiteralOption(llvm::cl::Option&, char const*) () from /home/schlueter/src/belle2/externals/v01-01-01/Linux_x86_64/opt/root/lib/libCling.so #6 0x00007f3ecadcfdcc in ?? () from /usr/lib/x86_64-linux-gnu/libLLVM-3.4.so.1 #7 0x00007f3f0867913a in ?? () from /lib64/ld-linux-x86-64.so.2 #8 0x00007f3f08679223 in ?? () from /lib64/ld-linux-x86-64.so.2 #9 0x00007f3f0867dc70 in ?? () from /lib64/ld-linux-x86-64.so.2 #10 0x00007f3f08678ff4 in ?? () from /lib64/ld-linux-x86-64.so.2 #11 0x00007f3f0867d3bb in ?? () from /lib64/ld-linux-x86-64.so.2 #12 0x00007f3f06cd902b in ?? () from /lib/x86_64-linux-gnu/libdl.so.2 #13 0x00007f3f08678ff4 in ?? () from /lib64/ld-linux-x86-64.so.2 #14 0x00007f3f06cd962d in ?? () from /lib/x86_64-linux-gnu/libdl.so.2 #15 0x00007f3f06cd90c1 in dlopen () from /lib/x86_64-linux-gnu/libdl.so.2 #16 0x00007f3edc84801c in ?? () from /usr/lib/x86_64-linux-gnu/mesa/libGL.so.1 #17 0x00007f3edc847719 in ?? () from /usr/lib/x86_64-linux-gnu/mesa/libGL.so.1 #18 0x00007f3edc828558 in ?? () from /usr/lib/x86_64-linux-gnu/mesa/libGL.so.1 #19 0x00007f3edc824f3b in ?? () from /usr/lib/x86_64-linux-gnu/mesa/libGL.so.1 #20 0x00007f3edc8256d0 in glXChooseVisual () from /usr/lib/x86_64-linux-gnu/mesa/libGL.so.1 #21 0x00007f3eddc7ffc1 in TGLWidget::CreateWindow(TGWindow const*, TGLFormat const&, unsigned int, unsigned int, std::pair<void*, void*>&) () from /home/schlueter/src/belle2/externals/v01-01-01/Linux_x86_64/opt/root/lib/libRGL.so #22 0x00007f3eddc80500 in TGLWidget::Create(TGLFormat const&, TGWindow const*, bool, bool, TGLPaintDevice const*, unsigned int, unsigned int) () from /home/schlueter/src/belle2/externals/v01-01-01/Linux_x86_64/opt/root/lib/libRGL.so #23 0x00007f3eddc80723 in TGLWidget::Create(TGWindow const*, bool, bool, TGLPaintDevice const*, unsigned int, unsigned int) () from /home/schlueter/src/belle2/externals/v01-01-01/Linux_x86_64/opt/root/lib/libRGL.so #24 0x00007f3eddbf4801 in TGLEmbeddedViewer::CreateFrames() () from /home/schlueter/src/belle2/externals/v01-01-01/Linux_x86_64/opt/root/lib/libRGL.so The reason is that the symbols from the libllvm that libmesa is linked against collide with the symbols of my already loaded llvm library. I don't think libmesa should load libraries in a way that pollutes the symbol namespace, depending on the execution path taken. -- You are receiving this mail because: You are the QA Contact for the bug. You are the assignee for the bug.
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