Created attachment 10459 [details] preprocessed source I'm running a clang plugin and it's crashing on some of the input files with a stacktrace: 0 libLLVM-3.2svn.so 0x00000039b376c42f 1 libLLVM-3.2svn.so 0x00000039b376c886 2 libpthread.so.0 0x00000034d1a0f000 3 clang 0x0000000000f7a1d6 clang::CXXBasePaths::lookupInBases(clang::ASTContext&, clang::CXXRecordDecl const*, bool (*)(clang::CXXBaseSpecifier const*, clang::CXXBasePath&, void*), void*) + 102 4 clang 0x0000000000f7b1f7 clang::CXXRecordDecl::lookupInBases(bool (*)(clang::CXXBaseSpecifier const*, clang::CXXBasePath&, void*), void*, clang::CXXBasePaths&) const + 55 5 clang 0x0000000000f7b713 clang::CXXRecordDecl::isDerivedFrom(clang::CXXRecordDecl const*) const + 259 6 plugin.so 0x00002aaaaab1c967 loplugin::ReferenceCasting::VisitCXXConstructExpr(clang::CXXConstructExpr*) + 855 7 plugin.so 0x00002aaaaab21732 clang::RecursiveASTVisitor<loplugin::ReferenceCasting>::TraverseCXXConstructExpr(clang::CXXConstructExpr*) + 18 8 plugin.so 0x00002aaaaab1e946 clang::RecursiveASTVisitor<loplugin::ReferenceCasting>::TraverseStmt(clang::Stmt*) + 310 9 plugin.so 0x00002aaaaab292d2 clang::RecursiveASTVisitor<loplugin::ReferenceCasting>::TraverseVarHelper(clang::VarDecl*) + 114 10 plugin.so 0x00002aaaaab1d110 clang::RecursiveASTVisitor<loplugin::ReferenceCasting>::TraverseDecl(clang::Decl*) + 1360 11 plugin.so 0x00002aaaaab20cb2 clang::RecursiveASTVisitor<loplugin::ReferenceCasting>::TraverseDeclStmt(clang::DeclStmt*) + 98 12 plugin.so 0x00002aaaaab1e8d5 clang::RecursiveASTVisitor<loplugin::ReferenceCasting>::TraverseStmt(clang::Stmt*) + 197 13 plugin.so 0x00002aaaaab20b9a clang::RecursiveASTVisitor<loplugin::ReferenceCasting>::TraverseCompoundStmt(clang::CompoundStmt*) + 186 14 plugin.so 0x00002aaaaab1e8c7 clang::RecursiveASTVisitor<loplugin::ReferenceCasting>::TraverseStmt(clang::Stmt*) + 183 15 plugin.so 0x00002aaaaab20aca clang::RecursiveASTVisitor<loplugin::ReferenceCasting>::TraverseCXXTryStmt(clang::CXXTryStmt*) + 186 16 plugin.so 0x00002aaaaab1e8c0 clang::RecursiveASTVisitor<loplugin::ReferenceCasting>::TraverseStmt(clang::Stmt*) + 176 17 plugin.so 0x00002aaaaab20b9a clang::RecursiveASTVisitor<loplugin::ReferenceCasting>::TraverseCompoundStmt(clang::CompoundStmt*) + 186 18 plugin.so 0x00002aaaaab1e8c7 clang::RecursiveASTVisitor<loplugin::ReferenceCasting>::TraverseStmt(clang::Stmt*) + 183 19 plugin.so 0x00002aaaaab2958c clang::RecursiveASTVisitor<loplugin::ReferenceCasting>::TraverseFunctionHelper(clang::FunctionDecl*) + 412 20 plugin.so 0x00002aaaaab1cc13 clang::RecursiveASTVisitor<loplugin::ReferenceCasting>::TraverseDecl(clang::Decl*) + 83 21 plugin.so 0x00002aaaaab1e7f1 clang::RecursiveASTVisitor<loplugin::ReferenceCasting>::TraverseDeclContextHelper(clang::DeclContext*) + 49 22 plugin.so 0x00002aaaaab1d301 clang::RecursiveASTVisitor<loplugin::ReferenceCasting>::TraverseDecl(clang::Decl*) + 1857 23 plugin.so 0x00002aaaaab1e7f1 clang::RecursiveASTVisitor<loplugin::ReferenceCasting>::TraverseDeclContextHelper(clang::DeclContext*) + 49 24 plugin.so 0x00002aaaaab1d301 clang::RecursiveASTVisitor<loplugin::ReferenceCasting>::TraverseDecl(clang::Decl*) + 1857 25 plugin.so 0x00002aaaaab1e7f1 clang::RecursiveASTVisitor<loplugin::ReferenceCasting>::TraverseDeclContextHelper(clang::DeclContext*) + 49 26 plugin.so 0x00002aaaaab1d301 clang::RecursiveASTVisitor<loplugin::ReferenceCasting>::TraverseDecl(clang::Decl*) + 1857 27 plugin.so 0x00002aaaaab4823e loplugin::PluginHandler::HandleTranslationUnit(clang::ASTContext&) + 94 28 clang 0x000000000063eb8d clang::MultiplexConsumer::HandleTranslationUnit(clang::ASTContext&) + 61 29 clang 0x00000000008adb84 clang::ParseAST(clang::Sema&, bool, bool) + 340 30 clang 0x0000000000768fd3 clang::CodeGenAction::ExecuteAction() + 51 31 clang 0x0000000000629f21 clang::FrontendAction::Execute() + 97 32 clang 0x000000000060be3a clang::CompilerInstance::ExecuteAction(clang::FrontendAction&) + 282 33 clang 0x00000000005f486d clang::ExecuteCompilerInvocation(clang::CompilerInstance*) + 1565 34 clang 0x00000000005eda88 cc1_main(char const**, char const**, char const*, void*) + 1176 35 clang 0x00000000005ec8fa main + 7034 36 libc.so.6 0x00000034d1621a05 __libc_start_main + 245 37 clang 0x00000000005ed431
Created attachment 10460 [details] runscript
Created attachment 10461 [details] plugin cpp file
Created attachment 10462 [details] plugin header file
Note that this is a fairly rare crash. On the whole LibreOffice codebase, it is crashing in about 4 or 5 files.