Ah, I see the problem in the code, will fix shortly. > On Feb 29, 2016, at 5:43 PM, Justin Lebar <jle...@google.com> wrote: > >> 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 >>>> >>
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