diff options
Diffstat (limited to 'lldb/source')
10 files changed, 645 insertions, 5 deletions
diff --git a/lldb/source/API/SystemInitializerFull.cpp b/lldb/source/API/SystemInitializerFull.cpp index a297a7c111c..c0185bc3814 100644 --- a/lldb/source/API/SystemInitializerFull.cpp +++ b/lldb/source/API/SystemInitializerFull.cpp @@ -78,6 +78,7 @@ #include "Plugins/Platform/gdb-server/PlatformRemoteGDBServer.h" #include "Plugins/Process/elf-core/ProcessElfCore.h" #include "Plugins/Process/gdb-remote/ProcessGDBRemote.h" +#include "Plugins/Process/minidump/ProcessMinidump.h" #include "Plugins/ScriptInterpreter/None/ScriptInterpreterNone.h" #include "Plugins/SymbolFile/DWARF/SymbolFileDWARF.h" #include "Plugins/SymbolFile/DWARF/SymbolFileDWARFDebugMap.h" @@ -304,6 +305,7 @@ void SystemInitializerFull::Initialize() { JITLoaderGDB::Initialize(); ProcessElfCore::Initialize(); + minidump::ProcessMinidump::Initialize(); #if defined(_MSC_VER) ProcessWinMiniDump::Initialize(); #endif @@ -429,6 +431,7 @@ void SystemInitializerFull::Terminate() { JITLoaderGDB::Terminate(); ProcessElfCore::Terminate(); + minidump::ProcessMinidump::Terminate(); #if defined(_MSC_VER) ProcessWinMiniDump::Terminate(); #endif diff --git a/lldb/source/Plugins/Process/minidump/CMakeLists.txt b/lldb/source/Plugins/Process/minidump/CMakeLists.txt index 92d831a3cae..ddc89cbd92c 100644 --- a/lldb/source/Plugins/Process/minidump/CMakeLists.txt +++ b/lldb/source/Plugins/Process/minidump/CMakeLists.txt @@ -5,4 +5,6 @@ add_lldb_library(lldbPluginProcessMinidump MinidumpParser.cpp RegisterContextMinidump_x86_32.cpp RegisterContextMinidump_x86_64.cpp + ProcessMinidump.cpp + ThreadMinidump.cpp ) diff --git a/lldb/source/Plugins/Process/minidump/MinidumpParser.cpp b/lldb/source/Plugins/Process/minidump/MinidumpParser.cpp index abb0810c813..37b3709c09c 100644 --- a/lldb/source/Plugins/Process/minidump/MinidumpParser.cpp +++ b/lldb/source/Plugins/Process/minidump/MinidumpParser.cpp @@ -9,6 +9,8 @@ // Project includes #include "MinidumpParser.h" +#include "NtStructures.h" +#include "RegisterContextMinidump_x86_32.h" // Other libraries and framework includes #include "lldb/Target/MemoryRegionInfo.h" @@ -106,11 +108,42 @@ llvm::ArrayRef<MinidumpThread> MinidumpParser::GetThreads() { llvm::ArrayRef<uint8_t> MinidumpParser::GetThreadContext(const MinidumpThread &td) { if (td.thread_context.rva + td.thread_context.data_size > GetData().size()) - return llvm::None; + return {}; return GetData().slice(td.thread_context.rva, td.thread_context.data_size); } +llvm::ArrayRef<uint8_t> +MinidumpParser::GetThreadContextWow64(const MinidumpThread &td) { + // On Windows, a 32-bit process can run on a 64-bit machine under + // WOW64. If the minidump was captured with a 64-bit debugger, then + // the CONTEXT we just grabbed from the mini_dump_thread is the one + // for the 64-bit "native" process rather than the 32-bit "guest" + // process we care about. In this case, we can get the 32-bit CONTEXT + // from the TEB (Thread Environment Block) of the 64-bit process. + auto teb_mem = GetMemory(td.teb, sizeof(TEB64)); + if (teb_mem.empty()) + return {}; + + const TEB64 *wow64teb; + Error error = consumeObject(teb_mem, wow64teb); + if (error.Fail()) + return {}; + + // Slot 1 of the thread-local storage in the 64-bit TEB points to a + // structure that includes the 32-bit CONTEXT (after a ULONG). + // See: https://msdn.microsoft.com/en-us/library/ms681670.aspx + auto context = + GetMemory(wow64teb->tls_slots[1] + 4, sizeof(MinidumpContext_x86_32)); + if (context.size() < sizeof(MinidumpContext_x86_32)) + return {}; + + return context; + // NOTE: We don't currently use the TEB for anything else. If we + // need it in the future, the 32-bit TEB is located according to the address + // stored in the first slot of the 64-bit TEB (wow64teb.Reserved1[0]). +} + const MinidumpSystemInfo *MinidumpParser::GetSystemInfo() { llvm::ArrayRef<uint8_t> data = GetStream(MinidumpStreamType::SystemInfo); @@ -229,8 +262,7 @@ llvm::ArrayRef<MinidumpModule> MinidumpParser::GetModuleList() { std::vector<const MinidumpModule *> MinidumpParser::GetFilteredModuleList() { llvm::ArrayRef<MinidumpModule> modules = GetModuleList(); - // mapping module_name to pair(load_address, pointer to module struct in - // memory) + // map module_name -> pair(load_address, pointer to module struct in memory) llvm::StringMap<std::pair<uint64_t, const MinidumpModule *>> lowest_addr; std::vector<const MinidumpModule *> filtered_modules; diff --git a/lldb/source/Plugins/Process/minidump/MinidumpParser.h b/lldb/source/Plugins/Process/minidump/MinidumpParser.h index 202ef37d8cd..67523a72ad1 100644 --- a/lldb/source/Plugins/Process/minidump/MinidumpParser.h +++ b/lldb/source/Plugins/Process/minidump/MinidumpParser.h @@ -59,6 +59,8 @@ public: llvm::ArrayRef<uint8_t> GetThreadContext(const MinidumpThread &td); + llvm::ArrayRef<uint8_t> GetThreadContextWow64(const MinidumpThread &td); + const MinidumpSystemInfo *GetSystemInfo(); ArchSpec GetArchitecture(); diff --git a/lldb/source/Plugins/Process/minidump/MinidumpTypes.h b/lldb/source/Plugins/Process/minidump/MinidumpTypes.h index 1b903075010..8c996d03a3e 100644 --- a/lldb/source/Plugins/Process/minidump/MinidumpTypes.h +++ b/lldb/source/Plugins/Process/minidump/MinidumpTypes.h @@ -439,7 +439,8 @@ static_assert(sizeof(MinidumpModule) == 108, // Exception stuff struct MinidumpException { enum { - MaxParams = 15, + ExceptonInfoMaxParams = 15, + DumpRequested = 0xFFFFFFFF, }; llvm::support::ulittle32_t exception_code; @@ -448,7 +449,7 @@ struct MinidumpException { llvm::support::ulittle64_t exception_address; llvm::support::ulittle32_t number_parameters; llvm::support::ulittle32_t unused_alignment; - llvm::support::ulittle64_t exception_information[MaxParams]; + llvm::support::ulittle64_t exception_information[ExceptonInfoMaxParams]; }; static_assert(sizeof(MinidumpException) == 152, "sizeof MinidumpException is not correct!"); diff --git a/lldb/source/Plugins/Process/minidump/NtStructures.h b/lldb/source/Plugins/Process/minidump/NtStructures.h new file mode 100644 index 00000000000..c0afd77358c --- /dev/null +++ b/lldb/source/Plugins/Process/minidump/NtStructures.h @@ -0,0 +1,37 @@ +//===-- NtStructures.h ------------------------------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef liblldb_Plugins_Process_Minidump_NtStructures_h_ +#define liblldb_Plugins_Process_Minidump_NtStructures_h_ + +#include "llvm/Support/Endian.h" + +namespace lldb_private { + +namespace minidump { + +// This describes the layout of a TEB (Thread Environment Block) for a 64-bit +// process. It's adapted from the 32-bit TEB in winternl.h. Currently, we care +// only about the position of the tls_slots. +struct TEB64 { + llvm::support::ulittle64_t reserved1[12]; + llvm::support::ulittle64_t process_environment_block; + llvm::support::ulittle64_t reserved2[399]; + uint8_t reserved3[1952]; + llvm::support::ulittle64_t tls_slots[64]; + uint8_t reserved4[8]; + llvm::support::ulittle64_t reserved5[26]; + llvm::support::ulittle64_t reserved_for_ole; // Windows 2000 only + llvm::support::ulittle64_t reserved6[4]; + llvm::support::ulittle64_t tls_expansion_slots; +}; + +#endif // liblldb_Plugins_Process_Minidump_NtStructures_h_ +} // namespace minidump +} // namespace lldb_private diff --git a/lldb/source/Plugins/Process/minidump/ProcessMinidump.cpp b/lldb/source/Plugins/Process/minidump/ProcessMinidump.cpp new file mode 100644 index 00000000000..fe437ce00aa --- /dev/null +++ b/lldb/source/Plugins/Process/minidump/ProcessMinidump.cpp @@ -0,0 +1,293 @@ +//===-- ProcessMinidump.cpp -------------------------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +// Project includes +#include "ProcessMinidump.h" +#include "ThreadMinidump.h" + +// Other libraries and framework includes +#include "lldb/Core/DataBufferHeap.h" +#include "lldb/Core/Log.h" +#include "lldb/Core/Module.h" +#include "lldb/Core/ModuleSpec.h" +#include "lldb/Core/PluginManager.h" +#include "lldb/Core/Section.h" +#include "lldb/Core/State.h" +#include "lldb/Target/DynamicLoader.h" +#include "lldb/Target/MemoryRegionInfo.h" +#include "lldb/Target/Target.h" +#include "lldb/Target/UnixSignals.h" +#include "lldb/Utility/LLDBAssert.h" + +// C includes +// C++ includes + +using namespace lldb_private; +using namespace minidump; + +ConstString ProcessMinidump::GetPluginNameStatic() { + static ConstString g_name("minidump"); + return g_name; +} + +const char *ProcessMinidump::GetPluginDescriptionStatic() { + return "Minidump plug-in."; +} + +lldb::ProcessSP ProcessMinidump::CreateInstance(lldb::TargetSP target_sp, + lldb::ListenerSP listener_sp, + const FileSpec *crash_file) { + if (!crash_file) + return nullptr; + + lldb::ProcessSP process_sp; + // Read enough data for the Minidump header + const size_t header_size = sizeof(MinidumpHeader); + lldb::DataBufferSP data_sp(crash_file->MemoryMapFileContents(0, header_size)); + if (!data_sp) + return nullptr; + + // first, only try to parse the header, beacuse we need to be fast + llvm::ArrayRef<uint8_t> header_data(data_sp->GetBytes(), header_size); + const MinidumpHeader *header = MinidumpHeader::Parse(header_data); + + if (data_sp->GetByteSize() != header_size || header == nullptr) + return nullptr; + + lldb::DataBufferSP all_data_sp(crash_file->MemoryMapFileContents()); + auto minidump_parser = MinidumpParser::Create(all_data_sp); + // check if the parser object is valid + // skip if the Minidump file is Windows generated, because we are still + // work-in-progress + if (!minidump_parser || + minidump_parser->GetArchitecture().GetTriple().getOS() == + llvm::Triple::OSType::Win32) + return nullptr; + + return std::make_shared<ProcessMinidump>(target_sp, listener_sp, *crash_file, + minidump_parser.getValue()); +} + +bool ProcessMinidump::CanDebug(lldb::TargetSP target_sp, + bool plugin_specified_by_name) { + return true; +} + +ProcessMinidump::ProcessMinidump(lldb::TargetSP target_sp, + lldb::ListenerSP listener_sp, + const FileSpec &core_file, + MinidumpParser minidump_parser) + : Process(target_sp, listener_sp), m_minidump_parser(minidump_parser), + m_core_file(core_file), m_is_wow64(false) {} + +ProcessMinidump::~ProcessMinidump() { + Clear(); + // We need to call finalize on the process before destroying ourselves + // to make sure all of the broadcaster cleanup goes as planned. If we + // destruct this class, then Process::~Process() might have problems + // trying to fully destroy the broadcaster. + Finalize(); +} + +void ProcessMinidump::Initialize() { + static std::once_flag g_once_flag; + + std::call_once(g_once_flag, []() { + PluginManager::RegisterPlugin(GetPluginNameStatic(), + GetPluginDescriptionStatic(), + ProcessMinidump::CreateInstance); + }); +} + +void ProcessMinidump::Terminate() { + PluginManager::UnregisterPlugin(ProcessMinidump::CreateInstance); +} + +Error ProcessMinidump::DoLoadCore() { + Error error; + + m_thread_list = m_minidump_parser.GetThreads(); + m_active_exception = m_minidump_parser.GetExceptionStream(); + ReadModuleList(); + GetTarget().SetArchitecture(GetArchitecture()); + + llvm::Optional<lldb::pid_t> pid = m_minidump_parser.GetPid(); + if (!pid) { + error.SetErrorString("failed to parse PID"); + return error; + } + SetID(pid.getValue()); + + return error; +} + +DynamicLoader *ProcessMinidump::GetDynamicLoader() { + if (m_dyld_ap.get() == nullptr) + m_dyld_ap.reset(DynamicLoader::FindPlugin(this, nullptr)); + return m_dyld_ap.get(); +} + +ConstString ProcessMinidump::GetPluginName() { return GetPluginNameStatic(); } + +uint32_t ProcessMinidump::GetPluginVersion() { return 1; } + +Error ProcessMinidump::DoDestroy() { return Error(); } + +void ProcessMinidump::RefreshStateAfterStop() { + if (!m_active_exception) + return; + + if (m_active_exception->exception_record.exception_code == + MinidumpException::DumpRequested) { + return; + } + + lldb::StopInfoSP stop_info; + lldb::ThreadSP stop_thread; + + Process::m_thread_list.SetSelectedThreadByID(m_active_exception->thread_id); + stop_thread = Process::m_thread_list.GetSelectedThread(); + ArchSpec arch = GetArchitecture(); + + if (arch.GetTriple().getOS() == llvm::Triple::Linux) { + stop_info = StopInfo::CreateStopReasonWithSignal( + *stop_thread, m_active_exception->exception_record.exception_code); + } else { + std::string desc; + llvm::raw_string_ostream desc_stream(desc); + desc_stream << "Exception " + << llvm::format_hex( + m_active_exception->exception_record.exception_code, 8) + << " encountered at address " + << llvm::format_hex( + m_active_exception->exception_record.exception_address, + 8); + stop_info = StopInfo::CreateStopReasonWithException( + *stop_thread, desc_stream.str().c_str()); + } + + stop_thread->SetStopInfo(stop_info); +} + +bool ProcessMinidump::IsAlive() { return true; } + +bool ProcessMinidump::WarnBeforeDetach() const { return false; } + +size_t ProcessMinidump::ReadMemory(lldb::addr_t addr, void *buf, size_t size, + lldb_private::Error &error) { + // Don't allow the caching that lldb_private::Process::ReadMemory does + // since we have it all cached in our dump file anyway. + return DoReadMemory(addr, buf, size, error); +} + +size_t ProcessMinidump::DoReadMemory(lldb::addr_t addr, void *buf, size_t size, + lldb_private::Error &error) { + + llvm::ArrayRef<uint8_t> mem = m_minidump_parser.GetMemory(addr, size); + if (mem.empty()) { + error.SetErrorString("could not parse memory info"); + return 0; + } + + std::memcpy(buf, mem.data(), mem.size()); + return mem.size(); +} + +ArchSpec ProcessMinidump::GetArchitecture() { + if (!m_is_wow64) { + return m_minidump_parser.GetArchitecture(); + } + + llvm::Triple triple; + triple.setVendor(llvm::Triple::VendorType::UnknownVendor); + triple.setArch(llvm::Triple::ArchType::x86); + triple.setOS(llvm::Triple::OSType::Win32); + return ArchSpec(triple); +} + +Error ProcessMinidump::GetMemoryRegionInfo( + lldb::addr_t load_addr, lldb_private::MemoryRegionInfo &range_info) { + Error error; + auto info = m_minidump_parser.GetMemoryRegionInfo(load_addr); + if (!info) { + error.SetErrorString("No valid MemoryRegionInfo found!"); + return error; + } + range_info = info.getValue(); + return error; +} + +void ProcessMinidump::Clear() { Process::m_thread_list.Clear(); } + +bool ProcessMinidump::UpdateThreadList( + lldb_private::ThreadList &old_thread_list, + lldb_private::ThreadList &new_thread_list) { + uint32_t num_threads = 0; + if (m_thread_list.size() > 0) + num_threads = m_thread_list.size(); + + for (lldb::tid_t tid = 0; tid < num_threads; ++tid) { + llvm::ArrayRef<uint8_t> context; + if (!m_is_wow64) + context = m_minidump_parser.GetThreadContext(m_thread_list[tid]); + else + context = m_minidump_parser.GetThreadContextWow64(m_thread_list[tid]); + + lldb::ThreadSP thread_sp( + new ThreadMinidump(*this, m_thread_list[tid], context)); + new_thread_list.AddThread(thread_sp); + } + return new_thread_list.GetSize(false) > 0; +} + +void ProcessMinidump::ReadModuleList() { + std::vector<const MinidumpModule *> filtered_modules = + m_minidump_parser.GetFilteredModuleList(); + + for (auto module : filtered_modules) { + llvm::Optional<std::string> name = + m_minidump_parser.GetMinidumpString(module->module_name_rva); + + if (!name) + continue; + + Log *log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_MODULES)); + if (log) { + log->Printf( + "ProcessMinidump::%s found module: name: %s %#010lx-%#010lx size: %u", + __FUNCTION__, name.getValue().c_str(), + uint64_t(module->base_of_image), + module->base_of_image + module->size_of_image, + uint32_t(module->size_of_image)); + } + + // check if the process is wow64 - a 32 bit windows process running on a + // 64 bit windows + if (llvm::StringRef(name.getValue()).endswith_lower("wow64.dll")) { + m_is_wow64 = true; + } + + const auto file_spec = FileSpec(name.getValue(), true); + ModuleSpec module_spec = file_spec; + Error error; + lldb::ModuleSP module_sp = GetTarget().GetSharedModule(module_spec, &error); + if (!module_sp || error.Fail()) { + continue; + } + + if (log) { + log->Printf("ProcessMinidump::%s load module: name: %s", __FUNCTION__, + name.getValue().c_str()); + } + + bool load_addr_changed = false; + module_sp->SetLoadAddress(GetTarget(), module->base_of_image, false, + load_addr_changed); + } +} diff --git a/lldb/source/Plugins/Process/minidump/ProcessMinidump.h b/lldb/source/Plugins/Process/minidump/ProcessMinidump.h new file mode 100644 index 00000000000..30637c2579a --- /dev/null +++ b/lldb/source/Plugins/Process/minidump/ProcessMinidump.h @@ -0,0 +1,104 @@ +//===-- ProcessMinidump.h ---------------------------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef liblldb_ProcessMinidump_h_ +#define liblldb_ProcessMinidump_h_ + +// Project includes +#include "MinidumpParser.h" +#include "MinidumpTypes.h" + +// Other libraries and framework includes +#include "lldb/Core/ConstString.h" +#include "lldb/Core/Error.h" +#include "lldb/Target/Process.h" +#include "lldb/Target/StopInfo.h" +#include "lldb/Target/Target.h" + +#include "llvm/Support/Format.h" +#include "llvm/Support/raw_ostream.h" + +// C Includes +// C++ Includes + +namespace lldb_private { + +namespace minidump { + +class ProcessMinidump : public Process { +public: + static lldb::ProcessSP CreateInstance(lldb::TargetSP target_sp, + lldb::ListenerSP listener_sp, + const FileSpec *crash_file_path); + + static void Initialize(); + + static void Terminate(); + + static ConstString GetPluginNameStatic(); + + static const char *GetPluginDescriptionStatic(); + + ProcessMinidump(lldb::TargetSP target_sp, lldb::ListenerSP listener_sp, + const lldb_private::FileSpec &core_file, + MinidumpParser minidump_parser); + + ~ProcessMinidump() override; + + bool CanDebug(lldb::TargetSP target_sp, + bool plugin_specified_by_name) override; + + Error DoLoadCore() override; + + DynamicLoader *GetDynamicLoader() override; + + ConstString GetPluginName() override; + + uint32_t GetPluginVersion() override; + + Error DoDestroy() override; + + void RefreshStateAfterStop() override; + + bool IsAlive() override; + + bool WarnBeforeDetach() const override; + + size_t ReadMemory(lldb::addr_t addr, void *buf, size_t size, + Error &error) override; + + size_t DoReadMemory(lldb::addr_t addr, void *buf, size_t size, + Error &error) override; + + ArchSpec GetArchitecture(); + + Error GetMemoryRegionInfo(lldb::addr_t load_addr, + MemoryRegionInfo &range_info) override; + + MinidumpParser m_minidump_parser; + +protected: + void Clear(); + + bool UpdateThreadList(ThreadList &old_thread_list, + ThreadList &new_thread_list) override; + + void ReadModuleList(); + +private: + FileSpec m_core_file; + llvm::ArrayRef<MinidumpThread> m_thread_list; + const MinidumpExceptionStream *m_active_exception; + bool m_is_wow64; +}; + +} // namespace minidump +} // namespace lldb_private + +#endif // liblldb_ProcessMinidump_h_ diff --git a/lldb/source/Plugins/Process/minidump/ThreadMinidump.cpp b/lldb/source/Plugins/Process/minidump/ThreadMinidump.cpp new file mode 100644 index 00000000000..e42108b9261 --- /dev/null +++ b/lldb/source/Plugins/Process/minidump/ThreadMinidump.cpp @@ -0,0 +1,114 @@ +//===-- ThreadMinidump.cpp --------------------------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +// Project includes +#include "ThreadMinidump.h" +#include "ProcessMinidump.h" + +#include "RegisterContextMinidump_x86_32.h" +#include "RegisterContextMinidump_x86_64.h" + +// Other libraries and framework includes +#include "Plugins/Process/Utility/RegisterContextLinux_i386.h" +#include "Plugins/Process/Utility/RegisterContextLinux_x86_64.h" + +#include "Plugins/Process/elf-core/RegisterContextPOSIXCore_x86_64.h" + +#include "lldb/Core/DataExtractor.h" +#include "lldb/Core/Log.h" +#include "lldb/Target/RegisterContext.h" +#include "lldb/Target/StopInfo.h" +#include "lldb/Target/Target.h" +#include "lldb/Target/Unwind.h" + +// C Includes +// C++ Includes + +using namespace lldb; +using namespace lldb_private; +using namespace minidump; + +ThreadMinidump::ThreadMinidump(Process &process, const MinidumpThread &td, + llvm::ArrayRef<uint8_t> gpregset_data) + : Thread(process, td.thread_id), m_thread_reg_ctx_sp(), + m_gpregset_data(gpregset_data) {} + +ThreadMinidump::~ThreadMinidump() {} + +void ThreadMinidump::RefreshStateAfterStop() {} + +void ThreadMinidump::ClearStackFrames() {} + +RegisterContextSP ThreadMinidump::GetRegisterContext() { + if (!m_reg_context_sp) { + m_reg_context_sp = CreateRegisterContextForFrame(nullptr); + } + return m_reg_context_sp; +} + +RegisterContextSP +ThreadMinidump::CreateRegisterContextForFrame(StackFrame *frame) { + RegisterContextSP reg_ctx_sp; + uint32_t concrete_frame_idx = 0; + Log *log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_THREAD)); + + if (frame) + concrete_frame_idx = frame->GetConcreteFrameIndex(); + + if (concrete_frame_idx == 0) { + if (m_thread_reg_ctx_sp) + return m_thread_reg_ctx_sp; + + ProcessMinidump *process = + static_cast<ProcessMinidump *>(GetProcess().get()); + ArchSpec arch = process->GetArchitecture(); + RegisterInfoInterface *reg_interface = nullptr; + + // TODO write other register contexts and add them here + switch (arch.GetMachine()) { + case llvm::Triple::x86: { + reg_interface = new RegisterContextLinux_i386(arch); + lldb::DataBufferSP buf = + ConvertMinidumpContext_x86_32(m_gpregset_data, reg_interface); + DataExtractor gpregs(buf, lldb::eByteOrderLittle, 4); + DataExtractor fpregs; + m_thread_reg_ctx_sp.reset(new RegisterContextCorePOSIX_x86_64( + *this, reg_interface, gpregs, fpregs)); + break; + } + case llvm::Triple::x86_64: { + reg_interface = new RegisterContextLinux_x86_64(arch); + lldb::DataBufferSP buf = + ConvertMinidumpContext_x86_64(m_gpregset_data, reg_interface); + DataExtractor gpregs(buf, lldb::eByteOrderLittle, 8); + DataExtractor fpregs; + m_thread_reg_ctx_sp.reset(new RegisterContextCorePOSIX_x86_64( + *this, reg_interface, gpregs, fpregs)); + break; + } + default: + break; + } + + if (!reg_interface) { + if (log) + log->Printf("elf-core::%s:: Architecture(%d) not supported", + __FUNCTION__, arch.GetMachine()); + assert(false && "Architecture not supported"); + } + + reg_ctx_sp = m_thread_reg_ctx_sp; + } else if (m_unwinder_ap) { + reg_ctx_sp = m_unwinder_ap->CreateRegisterContextForFrame(frame); + } + + return reg_ctx_sp; +} + +bool ThreadMinidump::CalculateStopInfo() { return false; } diff --git a/lldb/source/Plugins/Process/minidump/ThreadMinidump.h b/lldb/source/Plugins/Process/minidump/ThreadMinidump.h new file mode 100644 index 00000000000..97db452edff --- /dev/null +++ b/lldb/source/Plugins/Process/minidump/ThreadMinidump.h @@ -0,0 +1,52 @@ +//===-- ThreadMinidump.h ---------------------------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#ifndef liblldb_ThreadMinidump_h_ +#define liblldb_ThreadMinidump_h_ + +// Project includes +#include "MinidumpTypes.h" + +// Other libraries and framework includes +#include "lldb/Target/Thread.h" + +// C Includes +// C++ Includes + +namespace lldb_private { + +namespace minidump { + +class ThreadMinidump : public Thread { +public: + ThreadMinidump(Process &process, const MinidumpThread &td, + llvm::ArrayRef<uint8_t> gpregset_data); + + ~ThreadMinidump() override; + + void RefreshStateAfterStop() override; + + lldb::RegisterContextSP GetRegisterContext() override; + + lldb::RegisterContextSP + CreateRegisterContextForFrame(StackFrame *frame) override; + + void ClearStackFrames() override; + +protected: + lldb::RegisterContextSP m_thread_reg_ctx_sp; + llvm::ArrayRef<uint8_t> m_gpregset_data; + + bool CalculateStopInfo() override; +}; + +} // namespace minidump +} // namespace lldb_private + +#endif // liblldb_ThreadMinidump_h_ |
