If there really is a problem here, it looks like it comes from the structure returned by a call to the "readdir" function which is implemented by the system libraries. So if there's a problem here, I don't think it's CMake's fault.
On Sat, Sep 22, 2012 at 9:57 PM, Sean McBride <s...@rogue-research.com>wrote: > Hi all, > > My dashboards used to build CMake with clang's -fcatch-undefined-behavior, > but now they've given it more smarts (to catch more bugs) and now one can't > build CMake with this flag. > > Here's the build failure: > > <http://open.cdash.org/viewBuildError.php?buildid=2562276> > > It seems, near the end of the build, that the just-built cpack is run to > do something or other. This process dies: > > $ gdb --args ../bin/cpack --help-full > /Users/builder/external/CMake-clang-dbg-x86_64/Docs/cpack.txt --help-full > /Users/builder/external/CMake-clang-dbg-x86_64/Docs/cpack.html --help-full > /Users/builder/external/CMake-clang-dbg-x86_64/Docs/cpack.1 --help-full > /Users/builder/external/CMake-clang-dbg-x86_64/Docs/cpack.docbook > > (gdb) r > Starting program: /Users/builder/external/CMake-clang-dbg-x86_64/bin/cpack > --help-full /Users/builder/external/CMake-clang-dbg-x86_64/Docs/cpack.txt > --help-full /Users/builder/external/CMake-clang-dbg-x86_64/Docs/cpack.html > --help-full /Users/builder/external/CMake-clang-dbg-x86_64/Docs/cpack.1 > --help-full > /Users/builder/external/CMake-clang-dbg-x86_64/Docs/cpack.docbook > Reading symbols for shared libraries > ++++++............................................................ done > > Program received signal EXC_BAD_INSTRUCTION, Illegal instruction/operand. > 0x0000000100fac2e9 in cmsys::Directory::Load (this=0x7fff5fbfba90, > name=0x101f51c28 "/Users/builder/external/CMake/Modules/") at > /Users/builder/external/CMake/Source/kwsys/Directory.cxx:223 > 223 this->Internal->Files.push_back(d->d_name); > > (gdb) bt > #0 0x0000000100fac2e9 in cmsys::Directory::Load (this=0x7fff5fbfba90, > name=0x101f51c28 "/Users/builder/external/CMake/Modules/") at > /Users/builder/external/CMake/Source/kwsys/Directory.cxx:223 > #1 0x0000000100fb158e in cmsys::Glob::ProcessDirectory > (this=0x7fff5fbfc170, start=0, dir=@0x7fff5fbfbbf0) at > /Users/builder/external/CMake/Source/kwsys/Glob.cxx:302 > #2 0x0000000100fb451a in cmsys::Glob::FindFiles (this=0x7fff5fbfc170, > inexpr=@0x7fff5fbfc168) at > /Users/builder/external/CMake/Source/kwsys/Glob.cxx:464 > #3 0x0000000100653545 in cmDocumentation::getDocumentedModulesListInDir > (this=0x7fff5fbfe8f8, path=@0x7fff5fbfcab8, globExpr=@0x7fff5fbfcab0, > docedModuleList=@0x7fff5fbfcae8) at > /Users/builder/external/CMake/Source/cmDocumentation.cxx:771 > #4 0x000000010000fc9e in main (argc=9, argv=0x7fff5fbff920) at > /Users/builder/external/CMake/Source/CPack/cpack.cxx:554 > > (gdb) p name > $1 = 0x101f51c28 "/Users/builder/external/CMake/Modules/" > > (gdb) p *this > $2 = { > Internal = 0x101f51a80 > } > > (gdb) p d > $3 = (struct dirent *) 0x102010664 > > (gdb) p *d > $4 = { > d_ino = 387485515, > d_seekoff = 1769662337112866820, > d_reclen = 48, > d_namlen = 20, > d_type = 8 '\b', > d_name = "AutomocInfo.cmake.in > \000\000\000\000\000\000\000?\032?\030\000\000\000\000\005\000\000\000?\032?\030D\000+\000\ > bBasicConfigVersion-AnyNewerVersion.cmake.in > \000\000\000\000?\032?\030\000\000\000\000\006\000\000\000?\032?\030D\000(\000\ > bBasicConfigVersion-ExactVersion.cmake.in > \000\000\000\000\000\000\000?\032?\030\000\000\000\000\a\000\000\000???\032H\000,\000\bBasicConfigVersi"... > } > > It might be a false positive, though I have yet to see any from this tool. > > I'm hoping someone that knows the code can see the problem. > > Cheers, > > -- > ____________________________________________________________ > Sean McBride, B. Eng s...@rogue-research.com > Rogue Research www.rogue-research.com > Mac Software Developer Montréal, Québec, Canada > > > -- > > Powered by www.kitware.com > > Visit other Kitware open-source projects at > http://www.kitware.com/opensource/opensource.html > > Please keep messages on-topic and check the CMake FAQ at: > http://www.cmake.org/Wiki/CMake_FAQ > > Follow this link to subscribe/unsubscribe: > http://www.cmake.org/mailman/listinfo/cmake >
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