| //===-- ThreadElfCore.cpp --------------------------------------*- C++ -*-===// |
| // |
| // The LLVM Compiler Infrastructure |
| // |
| // This file is distributed under the University of Illinois Open Source |
| // License. See LICENSE.TXT for details. |
| // |
| //===----------------------------------------------------------------------===// |
| |
| #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" |
| |
| #include "ThreadElfCore.h" |
| #include "ProcessElfCore.h" |
| #include "RegisterContextLinux_x86_64.h" |
| #include "RegisterContextFreeBSD_i386.h" |
| #include "RegisterContextFreeBSD_mips64.h" |
| #include "RegisterContextFreeBSD_x86_64.h" |
| #include "RegisterContextPOSIXCore_mips64.h" |
| #include "RegisterContextPOSIXCore_x86_64.h" |
| |
| using namespace lldb; |
| using namespace lldb_private; |
| |
| //---------------------------------------------------------------------- |
| // Construct a Thread object with given data |
| //---------------------------------------------------------------------- |
| ThreadElfCore::ThreadElfCore (Process &process, tid_t tid, |
| const ThreadData &td) : |
| Thread(process, tid), |
| m_thread_name(td.name), |
| m_thread_reg_ctx_sp (), |
| m_signo(td.signo), |
| m_gpregset_data(td.gpregset), |
| m_fpregset_data(td.fpregset) |
| { |
| } |
| |
| ThreadElfCore::~ThreadElfCore () |
| { |
| DestroyThread(); |
| } |
| |
| void |
| ThreadElfCore::RefreshStateAfterStop() |
| { |
| GetRegisterContext()->InvalidateIfNeeded (false); |
| } |
| |
| void |
| ThreadElfCore::ClearStackFrames () |
| { |
| Unwind *unwinder = GetUnwinder (); |
| if (unwinder) |
| unwinder->Clear(); |
| Thread::ClearStackFrames(); |
| } |
| |
| RegisterContextSP |
| ThreadElfCore::GetRegisterContext () |
| { |
| if (m_reg_context_sp.get() == NULL) { |
| m_reg_context_sp = CreateRegisterContextForFrame (NULL); |
| } |
| return m_reg_context_sp; |
| } |
| |
| RegisterContextSP |
| ThreadElfCore::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; |
| |
| ProcessElfCore *process = static_cast<ProcessElfCore *>(GetProcess().get()); |
| ArchSpec arch = process->GetArchitecture(); |
| RegisterInfoInterface *reg_interface = NULL; |
| |
| switch (arch.GetTriple().getOS()) |
| { |
| case llvm::Triple::FreeBSD: |
| { |
| switch (arch.GetMachine()) |
| { |
| case llvm::Triple::mips64: |
| reg_interface = new RegisterContextFreeBSD_mips64(arch); |
| break; |
| case llvm::Triple::x86: |
| reg_interface = new RegisterContextFreeBSD_i386(arch); |
| break; |
| case llvm::Triple::x86_64: |
| reg_interface = new RegisterContextFreeBSD_x86_64(arch); |
| break; |
| default: |
| break; |
| } |
| break; |
| } |
| |
| case llvm::Triple::Linux: |
| { |
| switch (arch.GetMachine()) |
| { |
| case llvm::Triple::x86_64: |
| reg_interface = new RegisterContextLinux_x86_64(arch); |
| break; |
| default: |
| break; |
| } |
| break; |
| } |
| |
| default: |
| break; |
| } |
| |
| if (!reg_interface) { |
| if (log) |
| log->Printf ("elf-core::%s:: Architecture(%d) or OS(%d) not supported", |
| __FUNCTION__, arch.GetMachine(), arch.GetTriple().getOS()); |
| assert (false && "Architecture or OS not supported"); |
| } |
| |
| switch (arch.GetMachine()) |
| { |
| case llvm::Triple::mips64: |
| m_thread_reg_ctx_sp.reset(new RegisterContextCorePOSIX_mips64 (*this, reg_interface, m_gpregset_data, m_fpregset_data)); |
| break; |
| case llvm::Triple::x86: |
| case llvm::Triple::x86_64: |
| m_thread_reg_ctx_sp.reset(new RegisterContextCorePOSIX_x86_64 (*this, reg_interface, m_gpregset_data, m_fpregset_data)); |
| break; |
| default: |
| break; |
| } |
| |
| reg_ctx_sp = m_thread_reg_ctx_sp; |
| } |
| else if (m_unwinder_ap.get()) |
| { |
| reg_ctx_sp = m_unwinder_ap->CreateRegisterContextForFrame (frame); |
| } |
| return reg_ctx_sp; |
| } |
| |
| bool |
| ThreadElfCore::CalculateStopInfo () |
| { |
| ProcessSP process_sp (GetProcess()); |
| if (process_sp) |
| { |
| SetStopInfo(StopInfo::CreateStopReasonWithSignal (*this, m_signo)); |
| return true; |
| } |
| return false; |
| } |
| |
| //---------------------------------------------------------------- |
| // Parse PRSTATUS from NOTE entry |
| //---------------------------------------------------------------- |
| ELFLinuxPrStatus::ELFLinuxPrStatus() |
| { |
| memset(this, 0, sizeof(ELFLinuxPrStatus)); |
| } |
| |
| bool |
| ELFLinuxPrStatus::Parse(DataExtractor &data, ArchSpec &arch) |
| { |
| ByteOrder byteorder = data.GetByteOrder(); |
| size_t len; |
| switch(arch.GetCore()) |
| { |
| case ArchSpec::eCore_x86_64_x86_64: |
| len = data.ExtractBytes(0, ELFLINUXPRSTATUS64_SIZE, byteorder, this); |
| return len == ELFLINUXPRSTATUS64_SIZE; |
| default: |
| return false; |
| } |
| } |
| |
| //---------------------------------------------------------------- |
| // Parse PRPSINFO from NOTE entry |
| //---------------------------------------------------------------- |
| ELFLinuxPrPsInfo::ELFLinuxPrPsInfo() |
| { |
| memset(this, 0, sizeof(ELFLinuxPrPsInfo)); |
| } |
| |
| bool |
| ELFLinuxPrPsInfo::Parse(DataExtractor &data, ArchSpec &arch) |
| { |
| ByteOrder byteorder = data.GetByteOrder(); |
| size_t len; |
| switch(arch.GetCore()) |
| { |
| case ArchSpec::eCore_x86_64_x86_64: |
| len = data.ExtractBytes(0, ELFLINUXPRPSINFO64_SIZE, byteorder, this); |
| return len == ELFLINUXPRPSINFO64_SIZE; |
| default: |
| return false; |
| } |
| } |
| |