On Thu, Feb 11, 2016 at 01:59:25PM +1000, Dave Airlie wrote: > Hey, > > So in Fedora rawhide we are now building llvm 3.7.1 into the lots of > little shared libraries format. >
This configuration is only recommended for developers. See the documentation for BUILD_SHARED_LIBS:BOOL here: http://llvm.org/docs/CMake.html -Tom > However I'm running into a major problem with the fact that sometimes > dlclose isn't dropping all the LLVM libraries from the address space > of the process. > > We have a sequence like this: > > a) X server asks mesa gbm library to init, it loads the > kms_swrast_dri.so with dlopen(LAZY|GLOBAL). kms_swrast_dri.so is > linked against a large bunch of LLVM libraries (see below). > > b) gbm discovers it can't do what it wants and dlcloses the library. > At this point a bunch of the LLVM libraries drop out of the map, > pretty much everything down to LLVMTarget. Everything from > LLVMTarget onwards remains loaded and I've no idea how to discover why. > > c) later X tries to load kms_swrast_dri.so for GLX usage, and it > brings back in all the LLVM libraries that got dropped out, however as > LLVMObject has never been cleaned up, it has all the command line > options in it, so we get > : CommandLine Error: Option 'x86-asm-syntax' registered more than once! > LLVM ERROR: inconsistency in registered CommandLine options > and things crash. > > So anyone any ideas why we the linker isn't dropping all the other > LLVM libraries, or any workaround for this, apart from just going back > to the single libLLVM? > > Dave. > > [airlied@f21vm ~]$ ldd /usr/lib64/dri/kms_swrast_dri.so > linux-vdso.so.1 (0x00007ffec17fe000) > libcrypto.so.10 => /lib64/libcrypto.so.10 (0x00007f8a68ac5000) > libselinux.so.1 => /lib64/libselinux.so.1 (0x00007f8a688a3000) > libpthread.so.0 => /lib64/libpthread.so.0 (0x00007f8a68685000) > libdl.so.2 => /lib64/libdl.so.2 (0x00007f8a68481000) > libexpat.so.1 => /lib64/libexpat.so.1 (0x00007f8a68255000) > libdrm_intel.so.1 => /lib64/libdrm_intel.so.1 (0x00007f8a68033000) > libdrm_nouveau.so.2 => /lib64/libdrm_nouveau.so.2 (0x00007f8a67e2b000) > libdrm_radeon.so.1 => /lib64/libdrm_radeon.so.1 (0x00007f8a67c1f000) > libdrm_amdgpu.so.1 => /lib64/libdrm_amdgpu.so.1 (0x00007f8a67a16000) > libdrm.so.2 => /lib64/libdrm.so.2 (0x00007f8a67807000) > libelf.so.1 => /lib64/libelf.so.1 (0x00007f8a675ef000) > libLLVMAMDGPUCodeGen.so.3.7 => /lib64/libLLVMAMDGPUCodeGen.so.3.7 > (0x00007f8a672e2000) > libLLVMAMDGPUAsmParser.so.3.7 => > /lib64/libLLVMAMDGPUAsmParser.so.3.7 (0x00007f8a670a1000) > libLLVMAMDGPUUtils.so.3.7 => /lib64/libLLVMAMDGPUUtils.so.3.7 > (0x00007f8a66e9f000) > libLLVMAMDGPUDesc.so.3.7 => /lib64/libLLVMAMDGPUDesc.so.3.7 > (0x00007f8a66b9b000) > libLLVMAMDGPUInfo.so.3.7 => /lib64/libLLVMAMDGPUInfo.so.3.7 > (0x00007f8a66999000) > libLLVMAMDGPUAsmPrinter.so.3.7 => > /lib64/libLLVMAMDGPUAsmPrinter.so.3.7 (0x00007f8a66774000) > libLLVMObjCARCOpts.so.3.7 => /lib64/libLLVMObjCARCOpts.so.3.7 > (0x00007f8a6654e000) > libLLVMOption.so.3.7 => /lib64/libLLVMOption.so.3.7 (0x00007f8a66340000) > libLLVMIRReader.so.3.7 => /lib64/libLLVMIRReader.so.3.7 > (0x00007f8a6613b000) > libLLVMAsmParser.so.3.7 => /lib64/libLLVMAsmParser.so.3.7 > (0x00007f8a65ef2000) > libLLVMLinker.so.3.7 => /lib64/libLLVMLinker.so.3.7 (0x00007f8a65cdc000) > libLLVMipo.so.3.7 => /lib64/libLLVMipo.so.3.7 (0x00007f8a65a4a000) > libLLVMVectorize.so.3.7 => /lib64/libLLVMVectorize.so.3.7 > (0x00007f8a657ef000) > libLLVMAArch64Disassembler.so.3.7 => > /lib64/libLLVMAArch64Disassembler.so.3.7 (0x00007f8a655d0000) > libLLVMAArch64CodeGen.so.3.7 => > /lib64/libLLVMAArch64CodeGen.so.3.7 (0x00007f8a652b0000) > libLLVMAArch64AsmParser.so.3.7 => > /lib64/libLLVMAArch64AsmParser.so.3.7 (0x00007f8a65058000) > libLLVMAArch64Desc.so.3.7 => /lib64/libLLVMAArch64Desc.so.3.7 > (0x00007f8a64dde000) > libLLVMAArch64Info.so.3.7 => /lib64/libLLVMAArch64Info.so.3.7 > (0x00007f8a64bdc000) > libLLVMAArch64AsmPrinter.so.3.7 => > /lib64/libLLVMAArch64AsmPrinter.so.3.7 (0x00007f8a64979000) > libLLVMAArch64Utils.so.3.7 => /lib64/libLLVMAArch64Utils.so.3.7 > (0x00007f8a64768000) > libLLVMBitWriter.so.3.7 => /lib64/libLLVMBitWriter.so.3.7 > (0x00007f8a64541000) > libLLVMX86Disassembler.so.3.7 => > /lib64/libLLVMX86Disassembler.so.3.7 (0x00007f8a641df000) > libLLVMX86AsmParser.so.3.7 => /lib64/libLLVMX86AsmParser.so.3.7 > (0x00007f8a63f4b000) > libLLVMX86CodeGen.so.3.7 => /lib64/libLLVMX86CodeGen.so.3.7 > (0x00007f8a63b61000) > libLLVMSelectionDAG.so.3.7 => /lib64/libLLVMSelectionDAG.so.3.7 > (0x00007f8a63761000) > libLLVMAsmPrinter.so.3.7 => /lib64/libLLVMAsmPrinter.so.3.7 > (0x00007f8a634e6000) > libLLVMCodeGen.so.3.7 => /lib64/libLLVMCodeGen.so.3.7 (0x00007f8a63014000) > libLLVMScalarOpts.so.3.7 => /lib64/libLLVMScalarOpts.so.3.7 > (0x00007f8a62c92000) > libLLVMProfileData.so.3.7 => /lib64/libLLVMProfileData.so.3.7 > (0x00007f8a62a67000) > libLLVMInstCombine.so.3.7 => /lib64/libLLVMInstCombine.so.3.7 > (0x00007f8a627aa000) > libLLVMInstrumentation.so.3.7 => > /lib64/libLLVMInstrumentation.so.3.7 (0x00007f8a6253f000) > libLLVMTransformUtils.so.3.7 => > /lib64/libLLVMTransformUtils.so.3.7 (0x00007f8a6226b000) > libLLVMipa.so.3.7 => /lib64/libLLVMipa.so.3.7 (0x00007f8a62043000) > libLLVMX86Desc.so.3.7 => /lib64/libLLVMX86Desc.so.3.7 (0x00007f8a61c95000) > libLLVMMCDisassembler.so.3.7 => > /lib64/libLLVMMCDisassembler.so.3.7 (0x00007f8a61a8f000) > libLLVMX86Info.so.3.7 => /lib64/libLLVMX86Info.so.3.7 (0x00007f8a6188d000) > libLLVMX86AsmPrinter.so.3.7 => /lib64/libLLVMX86AsmPrinter.so.3.7 > (0x00007f8a61647000) > libLLVMX86Utils.so.3.7 => /lib64/libLLVMX86Utils.so.3.7 > (0x00007f8a6143e000) > libLLVMMCJIT.so.3.7 => /lib64/libLLVMMCJIT.so.3.7 (0x00007f8a61233000) > libLLVMExecutionEngine.so.3.7 => > /lib64/libLLVMExecutionEngine.so.3.7 (0x00007f8a61011000) > libLLVMTarget.so.3.7 => /lib64/libLLVMTarget.so.3.7 (0x00007f8a60e02000) > libLLVMAnalysis.so.3.7 => /lib64/libLLVMAnalysis.so.3.7 > (0x00007f8a60a33000) > libLLVMRuntimeDyld.so.3.7 => /lib64/libLLVMRuntimeDyld.so.3.7 > (0x00007f8a607e4000) > libLLVMObject.so.3.7 => /lib64/libLLVMObject.so.3.7 (0x00007f8a60574000) > libLLVMMCParser.so.3.7 => /lib64/libLLVMMCParser.so.3.7 > (0x00007f8a60347000) > libLLVMBitReader.so.3.7 => /lib64/libLLVMBitReader.so.3.7 > (0x00007f8a60112000) > libLLVMMC.so.3.7 => /lib64/libLLVMMC.so.3.7 (0x00007f8a5fe91000) > libLLVMCore.so.3.7 => /lib64/libLLVMCore.so.3.7 (0x00007f8a5fa56000) > libLLVMSupport.so.3.7 => /lib64/libLLVMSupport.so.3.7 (0x00007f8a5f66a000) > libm.so.6 => /lib64/libm.so.6 (0x00007f8a5f360000) > libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00007f8a5f149000) > libc.so.6 => /lib64/libc.so.6 (0x00007f8a5ed72000) > libz.so.1 => /lib64/libz.so.1 (0x00007f8a5eb5c000) > libpcre.so.1 => /lib64/libpcre.so.1 (0x00007f8a5e8e7000) > /lib64/ld-linux-x86-64.so.2 (0x0000565263dae000) > libpciaccess.so.0 => /lib64/libpciaccess.so.0 (0x00007f8a5e6dc000) > librt.so.1 => /lib64/../lib64/librt.so.1 (0x00007f8a5e4d2000) > _______________________________________________ > mesa-dev mailing list > mesa-dev@lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/mesa-dev _______________________________________________ mesa-dev mailing list mesa-dev@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/mesa-dev
