The specific issue here is that clang-scan-deps uses threads, which seems to work just fine. But, it calls some code that sets up PrettyStackTrace RAII objects, which normally use TLS. And when LLVM_ENABLE_THREADS is off, LLVM_THREAD_LOCAL expands to nothing, so the TLS variables are simply global, and the RAII objects assert that things haven't been constructed and destructed in the correct order.
So, going forward you will probably need to remember to add REQUIRES: thread_support to individual tests, or change clang-scan-deps to ignore the -j parameter when threads have been disabled. On Thu, Aug 8, 2019 at 2:45 PM Reid Kleckner via cfe-commits < cfe-commits@lists.llvm.org> wrote: > Author: rnk > Date: Thu Aug 8 14:45:59 2019 > New Revision: 368354 > > URL: http://llvm.org/viewvc/llvm-project?rev=368354&view=rev > Log: > Mark clang-scan-deps test as requiring thread support > > Otherwise the test calls a pure virtual method and crashes. Perhaps this > could be improved. > > Modified: > cfe/trunk/test/ClangScanDeps/regular_cdb.cpp > > Modified: cfe/trunk/test/ClangScanDeps/regular_cdb.cpp > URL: > http://llvm.org/viewvc/llvm-project/cfe/trunk/test/ClangScanDeps/regular_cdb.cpp?rev=368354&r1=368353&r2=368354&view=diff > > ============================================================================== > --- cfe/trunk/test/ClangScanDeps/regular_cdb.cpp (original) > +++ cfe/trunk/test/ClangScanDeps/regular_cdb.cpp Thu Aug 8 14:45:59 2019 > @@ -1,3 +1,4 @@ > +// REQUIRES: thread_support > // RUN: rm -rf %t.dir > // RUN: rm -rf %t.cdb > // RUN: mkdir -p %t.dir > > > _______________________________________________ > cfe-commits mailing list > cfe-commits@lists.llvm.org > https://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits >
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