[Lldb-commits] [PATCH] D72751: [LLDB] Add DynamicLoaderWasmDYLD plugin for WebAssembly debugging

[Vedant Kumar via Phabricator via lldb-commits]

vsk added a comment.

Hi @paolosev, the lldb sanitized bot is flagging a container-overflow error here. I know that this /can/ have FPs when sanitized and unsanitized code is mixed, but we should be in purely sanitized code here, and this looks like a valid report. PTAL.

http://green.lab.llvm.org/green/view/LLDB/job/lldb-cmake-sanitized/992/testReport/junit/lldb-api/functionalities_gdb_remote_client/TestWasm_py/

  =================================================================
  ==11283==ERROR: AddressSanitizer: container-overflow on address 0x615000016184 at pc 0x00010b4608f0 bp 0x7ffee4f00130 sp 0x7ffee4eff8f8
  READ of size 512 at 0x615000016184 thread T0
      #0 0x10b4608ef in __asan_memcpy+0x1af (libclang_rt.asan_osx_dynamic.dylib:x86_64+0x418ef)
      #1 0x1116486d5 in lldb_private::MemoryCache::Read(unsigned long long, void*, unsigned long, lldb_private::Status&) Memory.cpp:189
      #2 0x11119d0e9 in lldb_private::Module::GetMemoryObjectFile(std::__1::shared_ptr<lldb_private::Process> const&, unsigned long long, lldb_private::Status&, unsigned long) Module.cpp:298
      #3 0x11169eeef in lldb_private::Process::ReadModuleFromMemory(lldb_private::FileSpec const&, unsigned long long, unsigned long) Process.cpp:2402
      #4 0x11113337b in lldb_private::DynamicLoader::LoadModuleAtAddress(lldb_private::FileSpec const&, unsigned long long, unsigned long long, bool) DynamicLoader.cpp:212
      #5 0x111ed53da in lldb_private::process_gdb_remote::ProcessGDBRemote::LoadModuleAtAddress(lldb_private::FileSpec const&, unsigned long long, unsigned long long, bool) ProcessGDBRemote.cpp:4767
      #6 0x111ed59b8 in lldb_private::process_gdb_remote::ProcessGDBRemote::LoadModules() ProcessGDBRemote.cpp:4801
      #7 0x1119c59aa in lldb_private::wasm::DynamicLoaderWasmDYLD::DidAttach() DynamicLoaderWasmDYLD.cpp:63
      #8 0x1116a3a97 in lldb_private::Process::CompleteAttach() Process.cpp:2930
      #9 0x1116a6bdf in lldb_private::Process::ConnectRemote(lldb_private::Stream*, llvm::StringRef) Process.cpp:3015
      #10 0x110a362ee in lldb::SBTarget::ConnectRemote(lldb::SBListener&, char const*, char const*, lldb::SBError&) SBTarget.cpp:559


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