> How are you configuring cmake -G "Ninja" -DCMAKE_BUILD_TYPE=Release -DCMAKE_C_COMPILER=clang -DCMAKE_CXX_COMPILER=clang++ -DLLVM_ENABLE_ASSERTIONS=On -DLLVM_ENABLE_SPHINX=true -DSPHINX_OUTPUT_MAN=true ../llvm
> and what compiler and version are you using ? $ clang --version Ubuntu clang version 3.5.0-4ubuntu2~trusty2 (tags/RELEASE_350/final) (based on LLVM 3.5.0) Target: x86_64-pc-linux-gnu Thread model: posix I do not see the stack overflow or segfault in debug builds. I do see it regardless of whether or not I enable assertions. I also do not see the stack overflow in a release build if I reduce the amount of nesting in the test to about 2/3 of its present value. On Mon, Feb 29, 2016 at 5:38 PM, Argyrios Kyrtzidis <akyr...@gmail.com> wrote: > I don’t quite understand how it gets that stack trace, dataTraverseNode() was > introduced to avoid exactly this. > How are you configuring and what compiler and version are you using ? > >> On Feb 29, 2016, at 3:14 PM, Justin Lebar <jle...@google.com> wrote: >> >>> Is this still an issue after r260785 ? >> >> I just sync'ed to r262268 and was able to reproduce the segfault. >> >>> Could you provide a stack trace ? >> >> $ gdb --args release/bin/c-index-test -index-file >> /usr/local/google/home/jlebar/code/llvm/src/tools/clang/test/Index/index-many-call-ops.cpp >> (gdb) run >> Program received signal SIGSEGV, Segmentation fault. >> [Switching to Thread 0x7ffff2ca2700 (LWP 3936)] >> 0x00007ffff4f264be in >> clang::DeclarationName::print(llvm::raw_ostream&, >> clang::PrintingPolicy const&) () >> from >> /usr/local/google/home/jlebar/code/llvm-complete/release/bin/../lib/libclang.so.3.9 >> (gdb) bt >> #0 0x00007ffff4f264be in >> clang::DeclarationName::print(llvm::raw_ostream&, >> clang::PrintingPolicy const&) () >> from >> /usr/local/google/home/jlebar/code/llvm-complete/release/bin/../lib/libclang.so.3.9 >> #1 0x00007ffff4f26c9e in clang::operator<<(llvm::raw_ostream&, >> clang::DeclarationName) () >> from >> /usr/local/google/home/jlebar/code/llvm-complete/release/bin/../lib/libclang.so.3.9 >> #2 0x00007ffff4ebcb91 in >> clang::cxindex::CXIndexDataConsumer::getEntityInfo(clang::NamedDecl >> const*, clang::cxindex::EntityInfo&, clang::cxindex::ScratchAlloc&) () >> from >> /usr/local/google/home/jlebar/code/llvm-complete/release/bin/../lib/libclang.so.3.9 >> #3 0x00007ffff4ebc206 in >> clang::cxindex::CXIndexDataConsumer::handleReference(clang::NamedDecl >> const*, clang::SourceLocation, CXCursor, clang::NamedDecl const*, >> clang::DeclContext const*, clang::Expr const*, CXIdxEntityRefKind) () >> from >> /usr/local/google/home/jlebar/code/llvm-complete/release/bin/../lib/libclang.so.3.9 >> #4 0x00007ffff4ebbae2 in >> clang::cxindex::CXIndexDataConsumer::handleDeclOccurence(clang::Decl >> const*, unsigned int, llvm::ArrayRef<clang::index::SymbolRelation>, >> clang::FileID, unsigned int, >> clang::index::IndexDataConsumer::ASTNodeInfo) () >> from >> /usr/local/google/home/jlebar/code/llvm-complete/release/bin/../lib/libclang.so.3.9 >> #5 0x00007ffff51a05c5 in >> clang::index::IndexingContext::handleDeclOccurrence(clang::Decl >> const*, clang::SourceLocation, bool, clang::Decl const*, unsigned int, >> llvm::ArrayRef<clang::index::SymbolRelation>, clang::Expr const*, >> clang::Decl const*, clang::DeclContext const*) () >> from >> /usr/local/google/home/jlebar/code/llvm-complete/release/bin/../lib/libclang.so.3.9 >> #6 0x00007ffff51a092a in >> clang::index::IndexingContext::handleReference(clang::NamedDecl >> const*, clang::SourceLocation, clang::NamedDecl const*, >> clang::DeclContext const*, unsigned int, >> llvm::ArrayRef<clang::index::SymbolRelation>, clang::Expr const*, >> clang::Decl const*) () >> from >> /usr/local/google/home/jlebar/code/llvm-complete/release/bin/../lib/libclang.so.3.9 >> #7 0x00007ffff51a9256 in clang::RecursiveASTVisitor<(anonymous >> namespace)::BodyIndexer>::dataTraverseNode(clang::Stmt*, >> llvm::SmallVectorImpl<llvm::PointerIntPair<clang::Stmt*, 1u, bool, >> llvm::PointerLikeTypeTraits<clang::Stmt*>, >> llvm::PointerIntPairInfo<clang::Stmt*, 1u, >> llvm::PointerLikeTypeTraits<clang::Stmt*> > > >*) () from >> /usr/local/google/home/jlebar/code/llvm-complete/release/bin/../lib/libclang.so.3.9 >> #8 0x00007ffff51a60dd in clang::RecursiveASTVisitor<(anonymous >> namespace)::BodyIndexer>::TraverseStmt(clang::Stmt*, >> llvm::SmallVectorImpl<llvm::PointerIntPair<clang::Stmt*, 1u, bool, >> llvm::PointerLikeTypeTraits<clang::Stmt*>, >> llvm::PointerIntPairInfo<clang::Stmt*, 1u, >> llvm::PointerLikeTypeTraits<clang::Stmt*> > > >*) () from >> /usr/local/google/home/jlebar/code/llvm-complete/release/bin/../lib/libclang.so.3.9 >> #9 0x00007ffff51a880e in clang::RecursiveASTVisitor<(anonymous >> namespace)::BodyIndexer>::dataTraverseNode(clang::Stmt*, >> llvm::SmallVectorImpl<llvm::PointerIntPair<clang::Stmt*, 1u, bool, >> llvm::PointerLikeTypeTraits<clang::Stmt*>, >> llvm::PointerIntPairInfo<clang::Stmt*, 1u, >> llvm::PointerLikeTypeTraits<clang::Stmt*> > > >*) () from >> /usr/local/google/home/jlebar/code/llvm-complete/release/bin/../lib/libclang.so.3.9 >> #10 0x00007ffff51a60dd in clang::RecursiveASTVisitor<(anonymous >> namespace)::BodyIndexer>::TraverseStmt(clang::Stmt*, >> llvm::SmallVectorImpl<llvm::PointerIntPair<clang::Stmt*, 1u, bool, >> llvm::PointerLikeTypeTraits<clang::Stmt*>, >> llvm::PointerIntPairInfo<clang::Stmt*, 1u, >> llvm::PointerLikeTypeTraits<clang::Stmt*> > > >*) () from >> /usr/local/google/home/jlebar/code/llvm-complete/release/bin/../lib/libclang.so.3.9 >> #11 0x00007ffff51a880e in clang::RecursiveASTVisitor<(anonymous >> namespace)::BodyIndexer>::dataTraverseNode(clang::Stmt*, >> llvm::SmallVectorImpl<llvm::PointerIntPair<clang::Stmt*, 1u, bool, >> llvm::PointerLikeTypeTraits<clang::Stmt*>, >> llvm::PointerIntPairInfo<clang::Stmt*, 1u, >> llvm::PointerLikeTypeTraits<clang::Stmt*> > > >*) () from >> /usr/local/google/home/jlebar/code/llvm-complete/release/bin/../lib/libclang.so.3.9 >> #12 0x00007ffff51a60dd in clang::RecursiveASTVisitor<(anonymous >> namespace)::BodyIndexer>::TraverseStmt(clang::Stmt*, >> llvm::SmallVectorImpl<llvm::PointerIntPair<clang::Stmt*, 1u, bool, >> llvm::PointerLikeTypeTraits<clang::Stmt*>, >> llvm::PointerIntPairInfo<clang::Stmt*, 1u, >> llvm::PointerLikeTypeTraits<clang::Stmt*> > > >*) () from >> /usr/local/google/home/jlebar/code/llvm-complete/release/bin/../lib/libclang.so.3.9 >> #13 0x00007ffff51a880e in clang::RecursiveASTVisitor<(anonymous >> namespace)::BodyIndexer>::dataTraverseNode(clang::Stmt*, >> llvm::SmallVectorImpl<llvm::PointerIntPair<clang::Stmt*, 1u, bool, >> llvm::PointerLikeTypeTraits<clang::Stmt*>, >> llvm::PointerIntPairInfo<clang::Stmt*, 1u, >> llvm::PointerLikeTypeTraits<clang::Stmt*> > > >*) () from >> /usr/local/google/home/jlebar/code/llvm-complete/release/bin/../lib/libclang.so.3.9 >> #14 0x00007ffff51a60dd in clang::RecursiveASTVisitor<(anonymous >> namespace)::BodyIndexer>::TraverseStmt(clang::Stmt*, >> llvm::SmallVectorImpl<llvm::PointerIntPair<clang::Stmt*, 1u, bool, >> llvm::PointerLikeTypeTraits<clang::Stmt*>, >> llvm::PointerIntPairInfo<clang::Stmt*, 1u, >> llvm::PointerLikeTypeTraits<clang::Stmt*> > > >*) () from >> /usr/local/google/home/jlebar/code/llvm-complete/release/bin/../lib/libclang.so.3.9 >> #15 0x00007ffff51a880e in clang::RecursiveASTVisitor<(anonymous >> namespace)::BodyIndexer>::dataTraverseNode(clang::Stmt*, >> llvm::SmallVectorImpl<llvm::PointerIntPair<clang::Stmt*, 1u, bool, >> llvm::PointerLikeTypeTraits<clang::Stmt*>, >> llvm::PointerIntPairInfo<clang::Stmt*, 1u, >> llvm::PointerLikeTypeTraits<clang::Stmt*> > > >*) () from >> /usr/local/google/home/jlebar/code/llvm-complete/release/bin/../lib/libclang.so.3.9 >> #16 0x00007ffff51a60dd in clang::RecursiveASTVisitor<(anonymous >> namespace)::BodyIndexer>::TraverseStmt(clang::Stmt*, >> llvm::SmallVectorImpl<llvm::PointerIntPair<clang::Stmt*, 1u, bool, >> llvm::PointerLikeTypeTraits<clang::Stmt*>, >> llvm::PointerIntPairInfo<clang::Stmt*, 1u, >> llvm::PointerLikeTypeTraits<clang::Stmt*> > > >*) () from >> /usr/local/google/home/jlebar/code/llvm-complete/release/bin/../lib/libclang.so.3.9 >> #17 0x00007ffff51a880e in clang::RecursiveASTVisitor<(anonymous >> namespace)::BodyIndexer>::dataTraverseNode(clang::Stmt*, >> llvm::SmallVectorImpl<llvm::PointerIntPair<clang::Stmt*, 1u, bool, >> llvm::PointerLikeTypeTraits<clang::Stmt*>, >> llvm::PointerIntPairInfo<clang::Stmt*, 1u, >> llvm::PointerLikeTypeTraits<clang::Stmt*> > > >*) () from >> /usr/local/google/home/jlebar/code/llvm-complete/release/bin/../lib/libclang.so.3.9 >> #18 0x00007ffff51a60dd in clang::RecursiveASTVisitor<(anonymous >> namespace)::BodyIndexer>::TraverseStmt(clang::Stmt*, >> llvm::SmallVectorImpl<llvm::PointerIntPair<clang::Stmt*, 1u, bool, >> llvm::PointerLikeTypeTraits<clang::Stmt*>, >> llvm::PointerIntPairInfo<clang::Stmt*, 1u, >> llvm::PointerLikeTypeTraits<clang::Stmt*> > > >*) () from >> /usr/local/google/home/jlebar/code/llvm-complete/release/bin/../lib/libclang.so.3.9 >> #19 0x00007ffff51a880e in clang::RecursiveASTVisitor<(anonymous >> namespace)::BodyIndexer>::dataTraverseNode(clang::Stmt*, >> llvm::SmallVectorImpl<llvm::PointerIntPair<clang::Stmt*, 1u, bool, >> llvm::PointerLikeTypeTraits<clang::Stmt*>, >> llvm::PointerIntPairInfo<clang::Stmt*, 1u, >> llvm::PointerLikeTypeTraits<clang::Stmt*> > > >*) () from >> /usr/local/google/home/jlebar/code/llvm-complete/release/bin/../lib/libclang.so.3.9 >> #20 0x00007ffff51a60dd in clang::RecursiveASTVisitor<(anonymous >> namespace)::BodyIndexer>::TraverseStmt(clang::Stmt*, >> llvm::SmallVectorImpl<llvm::PointerIntPair<clang::Stmt*, 1u, bool, >> llvm::PointerLikeTypeTraits<clang::Stmt*>, >> llvm::PointerIntPairInfo<clang::Stmt*, 1u, >> llvm::PointerLikeTypeTraits<clang::Stmt*> > > >*) () from >> /usr/local/google/home/jlebar/code/llvm-complete/release/bin/../lib/libclang.so.3.9 >> #21 0x00007ffff51a880e in clang::RecursiveASTVisitor<(anonymous >> namespace)::BodyIndexer>::dataTraverseNode(clang::Stmt*, >> llvm::SmallVectorImpl<llvm::PointerIntPair<clang::Stmt*, 1u, bool, >> llvm::PointerLikeTypeTraits<clang::Stmt*>, >> llvm::PointerIntPairInfo<clang::Stmt*, 1u, >> llvm::PointerLikeTypeTraits<clang::Stmt*> > > >*) () from >> /usr/local/google/home/jlebar/code/llvm-complete/release/bin/../lib/libclang.so.3.9 >> #22 0x00007ffff51a60dd in clang::RecursiveASTVisitor<(anonymous >> namespace)::BodyIndexer>::TraverseStmt(clang::Stmt*, >> llvm::SmallVectorImpl<llvm::PointerIntPair<clang::Stmt*, 1u, bool, >> llvm::PointerLikeTypeTraits<clang::Stmt*>, >> llvm::PointerIntPairInfo<clang::Stmt*, 1u, >> llvm::PointerLikeTypeTraits<clang::Stmt*> > > >*) () from >> /usr/local/google/home/jlebar/code/llvm-complete/release/bin/../lib/libclang.so.3.9 >> ---Type <return> to continue, or q <return> to quit--- >> >> On Mon, Feb 29, 2016 at 3:03 PM, Argyrios Kyrtzidis <akyr...@gmail.com> >> wrote: >>> Is this still an issue after r260785 ? >>> Could you provide a stack trace ? >>> >>>> On Feb 29, 2016, at 2:27 PM, Justin Lebar <jle...@google.com> wrote: >>>> >>>> Hi, I think this broke clang/test/Index/index-many-call-ops.cpp. I >>>> get a segfault due to recursive stack overflow in release builds on my >>>> linux x86-64 box when running that test -- it seems the purpose of >>>> that test is to check that we *don't* segfault. >>>> >>>> This has been broken for a while, and people don't seem to be >>>> complaining -- I'm not sure if there's something specific about my >>>> config or if I'm just the first person to bother bisecting this... >>>> Maybe the test just needs to be pared down some? >>>> >>>> Please advise. >>>> >>>> Regards, >>>> -Justin >>>> >>>> On Sat, Feb 13, 2016 at 12:47 PM, Argyrios Kyrtzidis via cfe-commits >>>> <cfe-commits@lists.llvm.org> wrote: >>>>> I guess refreshing the build directory fixed the bots now. >>>>> You may want to look into ccache as possibly the issue here. >>>>> >>>>>> On Feb 13, 2016, at 12:08 PM, Argyrios Kyrtzidis <akyr...@gmail.com> >>>>>> wrote: >>>>>> >>>>>> clangIndex library is not part of that command so I don’t understand how >>>>>> my changes affect linking the clang binary, clangIndex is only used for >>>>>> libclang. >>>>>> >>>>>>> On Feb 13, 2016, at 11:55 AM, Argyrios Kyrtzidis <akyr...@gmail.com> >>>>>>> wrote: >>>>>>> >>>>>>> Sorry, I looked at it but it wasn’t clear to me what the problem is: >>>>>>> >>>>>>> FAILED: : <lond command> >>>>>>> /home/linaro/buildbot/clang-cmake-armv7-a15/stage1/tools/clang/clang.order: >>>>>>> file not recognized: File truncated >>>>>>> >>>>>>> I thought it was some build SNAFU, do you have some hint on what I need >>>>>>> to do to fix this ? >>>>>>> >>>>>>>> On Feb 13, 2016, at 7:48 AM, Renato Golin <renato.go...@linaro.org> >>>>>>>> wrote: >>>>>>>> >>>>>>>> On 12 February 2016 at 23:11, Argyrios Kyrtzidis via cfe-commits >>>>>>>> <cfe-commits@lists.llvm.org> wrote: >>>>>>>>> Author: akirtzidis >>>>>>>>> Date: Fri Feb 12 17:10:59 2016 >>>>>>>>> New Revision: 260760 >>>>>>>>> >>>>>>>>> URL: http://llvm.org/viewvc/llvm-project?rev=260760&view=rev >>>>>>>>> Log: >>>>>>>>> [libclang] Separate the underlying indexing functionality of libclang >>>>>>>>> and introduce it into the clangIndex library. >>>>>>>>> >>>>>>>>> It is a general goodness for libclang itself to mostly be a wrapper >>>>>>>>> of functionality provided by the libraries. >>>>>>>> >>>>>>>> Hi, >>>>>>>> >>>>>>>> This broke both ARM builds: >>>>>>>> >>>>>>>> http://lab.llvm.org:8011/builders/clang-cmake-armv7-a15/builds/9853 >>>>>>>> >>>>>>>> http://lab.llvm.org:8011/builders/clang-cmake-thumbv7-a15/builds/9806 >>>>>>>> >>>>>>>> And it's still broken. I'm going to refresh the build directory, but >>>>>>>> please keep an eye or revert if that doesn't work. >>>>>>>> >>>>>>>> cheers, >>>>>>>> --renato >>>>>>> >>>>>> >>>>> >>>>> _______________________________________________ >>>>> cfe-commits mailing list >>>>> cfe-commits@lists.llvm.org >>>>> http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits >>> > _______________________________________________ cfe-commits mailing list cfe-commits@lists.llvm.org http://lists.llvm.org/cgi-bin/mailman/listinfo/cfe-commits
