Dev/wwolff/sanitize 20240305 #78
Merged
Commits on Mar 8, 2024
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dpu: llvm: lldb: DpuContext: fix initialization ordering
A DpuContext, wrapper of backends's `struct dpu_context_t` is constructed for every LLDB Dpu instance. These instances cover a full rank. Currently, a DpuContext instance is partialialy initialize at the first StopThreads call (i.e. when LLDB stop threads for investigation) on which Dpu is currently allocated. When LLDB resume threads with ResumeThreads call, it tries to resume threads from all LLDB::Dpu instance. Though, this does not correspond to the number of requested Dpus. Hence, LLDB manipulates unitialized object. This commit fixes those report from `valgrind`: ``` ==17528== Conditional jump or move depends on uninitialised value(s) ==17528== at 0x182A1E: lldb_private::dpu::DpuContext::ContextReadyForResumeOrStep() (DpuContext.cpp:153) ==17528== by 0x180C68: lldb_private::dpu::Dpu::ResumeThreads(llvm::SmallVector<unsigned int, 8u>*, bool) (Dpu.cpp:295) ==17528== by 0x18069C: lldb_private::dpu::DpuRank::ResumeDpus() (DpuRank.cpp:125) ==17528== by 0x17DDEB: lldb_private::process_dpu::ProcessDpu::Detach() (ProcessDpu.cpp:460) ==17528== by 0x17D339: lldb_private::process_dpu::ProcessDpu::Kill() (ProcessDpu.cpp:512) ==17528== by 0x1A8E70: lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS::Handle_k(StringExtractorGDBRemote&) (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==17528== by 0x1A904D: std::_Function_handler<lldb_private::process_gdb_remote::GDBRemoteCommunication::PacketResult (StringExtractorGDBRemote&, lldb_private::Status&, bool&, bool&), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS::RegisterPacketHandlers()::{lambda(StringExtractorGDBRemote, lldb_private::Status&, bool&, bool&)#1}>::_M_invoke(std::_Any_data const&, StringExtractorGDBRemote&, lldb_priv ate::Status&, bool&, bool&) (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==17528== by 0x19839D: lldb_private::process_gdb_remote::GDBRemoteCommunicationServer::GetPacketAndSendResponse(lldb_private::Timeout<std::ratio<1l, 1000000l> >, lldb_private::Status&, bool&, bool&) (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==17528== by 0x1A8A74: lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS::DataAvailableCallback() (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==17528== by 0x1597DE: lldb_private::MainLoop::ProcessReadObject(int) (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==17528== by 0x1598A3: lldb_private::MainLoop::RunImpl::ProcessEvents() (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==17528== by 0x159CCF: lldb_private::MainLoop::Run() (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==17528== ==17528== Conditional jump or move depends on uninitialised value(s) ==17528== at 0x180C6F: lldb_private::dpu::Dpu::ResumeThreads(llvm::SmallVector<unsigned int, 8u>*, bool) (Dpu.cpp:295) ==17528== by 0x18069C: lldb_private::dpu::DpuRank::ResumeDpus() (DpuRank.cpp:125) ==17528== by 0x17DDEB: lldb_private::process_dpu::ProcessDpu::Detach() (ProcessDpu.cpp:460) ==17528== by 0x17D339: lldb_private::process_dpu::ProcessDpu::Kill() (ProcessDpu.cpp:512) ==17528== by 0x1A8E70: lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS::Handle_k(StringExtractorGDBRemote&) (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==17528== by 0x1A904D: std::_Function_handler<lldb_private::process_gdb_remote::GDBRemoteCommunication::PacketResult (StringExtractorGDBRemote&, lldb_private::Status&, bool&, bool&), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS::RegisterPacketHandlers()::{lambda(StringExtractorGDBRemote, lldb_private::Status&, bool&, bool&)#1}>::_M_invoke(std::_Any_data const&, StringExtractorGDBRemote&, lldb_priv ate::Status&, bool&, bool&) (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==17528== by 0x19839D: lldb_private::process_gdb_remote::GDBRemoteCommunicationServer::GetPacketAndSendResponse(lldb_private::Timeout<std::ratio<1l, 1000000l> >, lldb_private::Status&, bool&, bool&) (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==17528== by 0x1A8A74: lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS::DataAvailableCallback() (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==17528== by 0x1597DE: lldb_private::MainLoop::ProcessReadObject(int) (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==17528== by 0x1598A3: lldb_private::MainLoop::RunImpl::ProcessEvents() (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==17528== by 0x159CCF: lldb_private::MainLoop::Run() (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==17528== by 0x14C220: main_gdbserver(int, char**) (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==17528== ==17528== Conditional jump or move depends on uninitialised value(s) ==17528== at 0x489E135: ci_debug_teardown_dpu (ufi_debug.c:443) ==17528== by 0x488B339: dpu_finalize_fault_process_for_dpu (dpu_debug.c:120) ==17528== by 0x182C1C: lldb_private::dpu::DpuContext::ResumeThreads(llvm::SmallVector<unsigned int, 8u>*) (DpuContext.cpp:120) ==17528== by 0x180C9B: lldb_private::dpu::Dpu::ResumeThreads(llvm::SmallVector<unsigned int, 8u>*, bool) (Dpu.cpp:308) ==17528== by 0x18069C: lldb_private::dpu::DpuRank::ResumeDpus() (DpuRank.cpp:125) ==17528== by 0x17DDEB: lldb_private::process_dpu::ProcessDpu::Detach() (ProcessDpu.cpp:460) ==17528== by 0x17D339: lldb_private::process_dpu::ProcessDpu::Kill() (ProcessDpu.cpp:512) ==17528== by 0x1A8E70: lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS::Handle_k(StringExtractorGDBRemote&) (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==17528== by 0x1A904D: std::_Function_handler<lldb_private::process_gdb_remote::GDBRemoteCommunication::PacketResult (StringExtractorGDBRemote&, lldb_private::Status&, bool&, bool&), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS::RegisterPacketHandlers()::{lambda(StringExtractorGDBRemote, lldb_private::Status&, bool&, bool&)#1}>::_M_invoke(std::_Any_data const&, StringExtractorGDBRemote&, lldb_priv ate::Status&, bool&, bool&) (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==17528== by 0x19839D: lldb_private::process_gdb_remote::GDBRemoteCommunicationServer::GetPacketAndSendResponse(lldb_private::Timeout<std::ratio<1l, 1000000l> >, lldb_private::Status&, bool&, bool&) (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==17528== by 0x1A8A74: lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS::DataAvailableCallback() (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==17528== by 0x1597DE: lldb_private::MainLoop::ProcessReadObject(int) (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==17528== ==17528== Conditional jump or move depends on uninitialised value(s) ==17528== at 0x489E140: ci_debug_teardown_dpu (ufi_debug.c:443) ==17528== by 0x488B339: dpu_finalize_fault_process_for_dpu (dpu_debug.c:120) ==17528== by 0x182C1C: lldb_private::dpu::DpuContext::ResumeThreads(llvm::SmallVector<unsigned int, 8u>*) (DpuContext.cpp:120) ==17528== by 0x180C9B: lldb_private::dpu::Dpu::ResumeThreads(llvm::SmallVector<unsigned int, 8u>*, bool) (Dpu.cpp:308) ==17528== by 0x18069C: lldb_private::dpu::DpuRank::ResumeDpus() (DpuRank.cpp:125) ==17528== by 0x17DDEB: lldb_private::process_dpu::ProcessDpu::Detach() (ProcessDpu.cpp:460) ==17528== by 0x17D339: lldb_private::process_dpu::ProcessDpu::Kill() (ProcessDpu.cpp:512) ==17528== by 0x1A8E70: lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS::Handle_k(StringExtractorGDBRemote&) (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==17528== by 0x1A904D: std::_Function_handler<lldb_private::process_gdb_remote::GDBRemoteCommunication::PacketResult (StringExtractorGDBRemote&, lldb_private::Status&, bool&, bool&), lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS::RegisterPacketHandlers()::{lambda(StringExtractorGDBRemote, lldb_private::Status&, bool&, bool&)#1}>::_M_invoke(std::_Any_data const&, StringExtractorGDBRemote&, lldb_priv ate::Status&, bool&, bool&) (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==17528== by 0x19839D: lldb_private::process_gdb_remote::GDBRemoteCommunicationServer::GetPacketAndSendResponse(lldb_private::Timeout<std::ratio<1l, 1000000l> >, lldb_private::Status&, bool&, bool&) (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==17528== by 0x1A8A74: lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS::DataAvailableCallback() (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==17528== by 0x1597DE: lldb_private::MainLoop::ProcessReadObject(int) (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==17528== ``` -
dpu: llvm: lldb: Dpu: fix type mismatch
In internal API, a {bkp, mem, dma}_fault_thread_index are declared as `dpu_thread_t` a.k.a `uint8_t`. In LLDB::Dpu::GetThreadState, shortcut variables are declared as `uint32_t`. This commit synchronize both to fix those report from `valgrind`: ``` ==17528== Conditional jump or move depends on uninitialised value(s) ==17528== at 0x182126: lldb_private::dpu::Dpu::GetThreadState(unsigned int, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, lldb::StopReason&, bool) (Dpu.cpp:785) ==17528== by 0x18024D: lldb_private::process_dpu::ThreadDpu::GetStopReason(lldb_private::ThreadStopInfo&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&) (ThreadDpu.cpp:46) ==17528== by 0x1B1E6F: lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS::SendStopReplyPacketForThread(unsigned long) (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==17528== by 0x1B3D10: lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS::SendStopReasonForState(lldb::StateType) (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==17528== by 0x1B3E3C: lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS::HandleInferiorState_Stopped(lldb_private::NativeProcessProtocol*) (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==17528== by 0x1B3F59: lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS::ProcessStateChanged(lldb_private::NativeProcessProtocol*, lldb::StateType) (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==17528== by 0x15E373: lldb_private::NativeProcessProtocol::SynchronouslyNotifyProcessStateChanged(lldb::StateType) (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==17528== by 0x15E8F9: lldb_private::NativeProcessProtocol::SetState(lldb::StateType, bool) (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==17528== by 0x17DA15: lldb_private::process_dpu::ProcessDpu::InterfaceTimerCallback() (ProcessDpu.cpp:366) ==17528== by 0x1597DE: lldb_private::MainLoop::ProcessReadObject(int) (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==17528== by 0x1598A3: lldb_private::MainLoop::RunImpl::ProcessEvents() (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==17528== by 0x159CCF: lldb_private::MainLoop::Run() (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==17528== ==17528== Conditional jump or move depends on uninitialised value(s) ==17528== at 0x182126: lldb_private::dpu::Dpu::GetThreadState(unsigned int, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&, lldb::StopReason&, bool) (Dpu.cpp:785) ==17528== by 0x18024D: lldb_private::process_dpu::ThreadDpu::GetStopReason(lldb_private::ThreadStopInfo&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >&) (ThreadDpu.cpp:46) ==17528== by 0x1B0599: GetJSONThreadsInfo(lldb_private::NativeProcessProtocol&, bool) (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==17528== by 0x1B85C4: lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS::Handle_jThreadsInfo(StringExtractorGDBRemote&) (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==17528== by 0x1A6E56: std::_Function_handler<lldb_private::process_gdb_remote::GDBRemoteCommunication::PacketResult (StringExtractorGDBRemote&, lldb_private::Status&, bool&, bool&), void lldb_private::process_gdb_remote::GDBRemoteCommunicationServerCommon::RegisterMemberFunctionHandler<lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS>(StringExtractorGDBRemote::ServerPacketType, lldb_private::process_ gdb_remote::GDBRemoteCommunication::PacketResult (lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS::*)(StringExtractorGDBRemote&))::{lambda(StringExtractorGDBRemote, lldb_private::Status&, bool&, bool&)#1}>::_M_invoke(std::_Any_data const&, StringExtractorGDBRemote&, lldb_private::Status&, bool&, bool&) (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==17528== by 0x19839D: lldb_private::process_gdb_remote::GDBRemoteCommunicationServer::GetPacketAndSendResponse(lldb_private::Timeout<std::ratio<1l, 1000000l> >, lldb_private::Status&, bool&, bool&) (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==17528== by 0x1A8A74: lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS::DataAvailableCallback() (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==17528== by 0x1597DE: lldb_private::MainLoop::ProcessReadObject(int) (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==17528== by 0x1598A3: lldb_private::MainLoop::RunImpl::ProcessEvents() (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==17528== by 0x159CCF: lldb_private::MainLoop::Run() (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==17528== by 0x14C220: main_gdbserver(int, char**) (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==17528== by 0x1473B2: main (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ``` -
dpu: llvm: lldb: fix memory leak
The Dpu specifics d'tor wasn't or not well implemented. This commit fix those `valgrind` report: ``` ==17528== 288,802 (96 direct, 288,706 indirect) bytes in 1 blocks are definitely lost in loss record 187 of 187 ==17528== at 0x4835DEF: operator new(unsigned long) (vg_replace_malloc.c:334) ==17528== by 0x17F451: lldb_private::process_dpu::ProcessDpu::Factory::Launch(lldb_private::ProcessLaunchInfo&, lldb_private::NativeProcessProtocol::NativeDelegate&, lldb_private::MainLoop&) const (ProcessDpu.cpp:103) ==17528== by 0x1AA7B9: lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS::LaunchProcess() (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==17528== by 0x149271: handle_launch(lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS&, llvm::ArrayRef<llvm::StringRef>) (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==17528== by 0x14C19D: main_gdbserver(int, char**) (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==17528== by 0x1473B2: main (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ``` or ``` ==32349== 280,107 (96 direct, 280,011 indirect) bytes in 1 blocks are definitely lost in loss record 149 of 149 ==32349== at 0x4835DEF: operator new(unsigned long) (vg_replace_malloc.c:334) ==32349== by 0x17F72B: lldb_private::process_dpu::ProcessDpu::Factory::Attach(unsigned long, lldb_private::NativeProcessProtocol::NativeDelegate&, lldb_private::MainLoop&) const (ProcessDpu.cpp:202) ==32349== by 0x1AA199: lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS::AttachToProcess(unsigned long) (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==32349== by 0x148FA9: handle_attach_to_pid(lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS&, unsigned long) (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==32349== by 0x14906A: handle_attach(lldb_private::process_gdb_remote::GDBRemoteCommunicationServerLLGS&, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> > const&) (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==32349== by 0x14C65B: main_gdbserver(int, char**) (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ==32349== by 0x1473B2: main (in /scratch/wwolff/dpu_tools_rework_testsuite/bin/lldb-server-dpu) ```
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