C++ ProcessInstanceInfo::GetArchitecture方法代码示例

static bool
GetNetBSDProcessCPUType (ProcessInstanceInfo &process_info)
{
    if (process_info.ProcessIDIsValid())
    {
        process_info.GetArchitecture() = HostInfo::GetArchitecture(HostInfo::eArchKindDefault);
        return true;
    }
    process_info.GetArchitecture().Clear();
    return false;
}

static bool
GetFreeBSDProcessCPUType (ProcessInstanceInfo &process_info)
{
    if (process_info.ProcessIDIsValid())
    {
        process_info.GetArchitecture() = Host::GetArchitecture (Host::eSystemDefaultArchitecture);
        return true;
    }
    process_info.GetArchitecture().Clear();
    return false;
}

static bool
GetELFProcessCPUType (const char *exe_path, ProcessInstanceInfo &process_info)
{
    // Clear the architecture.
    process_info.GetArchitecture().Clear();

    ModuleSpecList specs;
    FileSpec filespec (exe_path, false);
    const size_t num_specs = ObjectFile::GetModuleSpecifications (filespec, 0, 0, specs);
    // GetModuleSpecifications() could fail if the executable has been deleted or is locked.
    // But it shouldn't return more than 1 architecture.
    assert(num_specs <= 1 && "Linux plugin supports only a single architecture");
    if (num_specs == 1)
    {
        ModuleSpec module_spec;
        if (specs.GetModuleSpecAtIndex (0, module_spec) && module_spec.GetArchitecture().IsValid())
        {
            process_info.GetArchitecture () = module_spec.GetArchitecture();
            return true;
        }
    }
    return false;
}

void GDBRemoteCommunicationServerCommon::CreateProcessInfoResponse(
    const ProcessInstanceInfo &proc_info, StreamString &response) {
  response.Printf(
      "pid:%" PRIu64 ";ppid:%" PRIu64 ";uid:%i;gid:%i;euid:%i;egid:%i;",
      proc_info.GetProcessID(), proc_info.GetParentProcessID(),
      proc_info.GetUserID(), proc_info.GetGroupID(),
      proc_info.GetEffectiveUserID(), proc_info.GetEffectiveGroupID());
  response.PutCString("name:");
  response.PutCStringAsRawHex8(proc_info.GetExecutableFile().GetCString());
  response.PutChar(';');
  const ArchSpec &proc_arch = proc_info.GetArchitecture();
  if (proc_arch.IsValid()) {
    const llvm::Triple &proc_triple = proc_arch.GetTriple();
    response.PutCString("triple:");
    response.PutCStringAsRawHex8(proc_triple.getTriple().c_str());
    response.PutChar(';');
  }
}

static void
CreateProcessInfoResponse (const ProcessInstanceInfo &proc_info, StreamString &response)
{
    response.Printf ("pid:%llu;ppid:%llu;uid:%i;gid:%i;euid:%i;egid:%i;", 
                     proc_info.GetProcessID(),
                     proc_info.GetParentProcessID(),
                     proc_info.GetUserID(),
                     proc_info.GetGroupID(),
                     proc_info.GetEffectiveUserID(),
                     proc_info.GetEffectiveGroupID());
    response.PutCString ("name:");
    response.PutCStringAsRawHex8(proc_info.GetName());
    response.PutChar(';');
    const ArchSpec &proc_arch = proc_info.GetArchitecture();
    if (proc_arch.IsValid())
    {
        const llvm::Triple &proc_triple = proc_arch.GetTriple();
        response.PutCString("triple:");
        response.PutCStringAsRawHex8(proc_triple.getTriple().c_str());
        response.PutChar(';');
    }
}

void GDBRemoteCommunicationServerCommon::
    CreateProcessInfoResponse_DebugServerStyle(
        const ProcessInstanceInfo &proc_info, StreamString &response) {
  response.Printf("pid:%" PRIx64 ";parent-pid:%" PRIx64
                  ";real-uid:%x;real-gid:%x;effective-uid:%x;effective-gid:%x;",
                  proc_info.GetProcessID(), proc_info.GetParentProcessID(),
                  proc_info.GetUserID(), proc_info.GetGroupID(),
                  proc_info.GetEffectiveUserID(),
                  proc_info.GetEffectiveGroupID());

  const ArchSpec &proc_arch = proc_info.GetArchitecture();
  if (proc_arch.IsValid()) {
    const llvm::Triple &proc_triple = proc_arch.GetTriple();
#if defined(__APPLE__)
    // We'll send cputype/cpusubtype.
    const uint32_t cpu_type = proc_arch.GetMachOCPUType();
    if (cpu_type != 0)
      response.Printf("cputype:%" PRIx32 ";", cpu_type);

    const uint32_t cpu_subtype = proc_arch.GetMachOCPUSubType();
    if (cpu_subtype != 0)
      response.Printf("cpusubtype:%" PRIx32 ";", cpu_subtype);

    const std::string vendor = proc_triple.getVendorName();
    if (!vendor.empty())
      response.Printf("vendor:%s;", vendor.c_str());
#else
    // We'll send the triple.
    response.PutCString("triple:");
    response.PutCStringAsRawHex8(proc_triple.getTriple().c_str());
    response.PutChar(';');
#endif
    std::string ostype = proc_triple.getOSName();
    // Adjust so ostype reports ios for Apple/ARM and Apple/ARM64.
    if (proc_triple.getVendor() == llvm::Triple::Apple) {
      switch (proc_triple.getArch()) {
      case llvm::Triple::arm:
      case llvm::Triple::thumb:
      case llvm::Triple::aarch64:
        ostype = "ios";
        break;
      default:
        // No change.
        break;
      }
    }
    response.Printf("ostype:%s;", ostype.c_str());

    switch (proc_arch.GetByteOrder()) {
    case lldb::eByteOrderLittle:
      response.PutCString("endian:little;");
      break;
    case lldb::eByteOrderBig:
      response.PutCString("endian:big;");
      break;
    case lldb::eByteOrderPDP:
      response.PutCString("endian:pdp;");
      break;
    default:
      // Nothing.
      break;
    }
    // In case of MIPS64, pointer size is depend on ELF ABI
    // For N32 the pointer size is 4 and for N64 it is 8
    std::string abi = proc_arch.GetTargetABI();
    if (!abi.empty())
      response.Printf("elf_abi:%s;", abi.c_str());
    response.Printf("ptrsize:%d;", proc_arch.GetAddressByteSize());
  }
}

static bool GetProcessAndStatInfo(::pid_t pid,
                                  ProcessInstanceInfo &process_info,
                                  ProcessState &State, ::pid_t &tracerpid) {
  tracerpid = 0;
  process_info.Clear();

  Log *log(GetLogIfAllCategoriesSet(LIBLLDB_LOG_PROCESS));

  // We can't use getProcFile here because proc/[pid]/exe is a symbolic link.
  llvm::SmallString<64> ProcExe;
  (llvm::Twine("/proc/") + llvm::Twine(pid) + "/exe").toVector(ProcExe);
  std::string ExePath(PATH_MAX, '\0');

  ssize_t len = readlink(ProcExe.c_str(), &ExePath[0], PATH_MAX);
  if (len <= 0) {
    LLDB_LOG(log, "failed to read link exe link for {0}: {1}", pid,
             Status(errno, eErrorTypePOSIX));
    return false;
  }
  ExePath.resize(len);

  // If the binary has been deleted, the link name has " (deleted)" appended.
  // Remove if there.
  llvm::StringRef PathRef = ExePath;
  PathRef.consume_back(" (deleted)");

  GetELFProcessCPUType(PathRef, process_info);

  // Get the process environment.
  auto BufferOrError = getProcFile(pid, "environ");
  if (!BufferOrError)
    return false;
  std::unique_ptr<llvm::MemoryBuffer> Environ = std::move(*BufferOrError);

  // Get the command line used to start the process.
  BufferOrError = getProcFile(pid, "cmdline");
  if (!BufferOrError)
    return false;
  std::unique_ptr<llvm::MemoryBuffer> Cmdline = std::move(*BufferOrError);

  // Get User and Group IDs and get tracer pid.
  if (!GetStatusInfo(pid, process_info, State, tracerpid))
    return false;

  process_info.SetProcessID(pid);
  process_info.GetExecutableFile().SetFile(PathRef, false);
  process_info.GetArchitecture().MergeFrom(HostInfo::GetArchitecture());

  llvm::StringRef Rest = Environ->getBuffer();
  while (!Rest.empty()) {
    llvm::StringRef Var;
    std::tie(Var, Rest) = Rest.split('\0');
    process_info.GetEnvironmentEntries().AppendArgument(Var);
  }

  llvm::StringRef Arg0;
  std::tie(Arg0, Rest) = Cmdline->getBuffer().split('\0');
  process_info.SetArg0(Arg0);
  while (!Rest.empty()) {
    llvm::StringRef Arg;
    std::tie(Arg, Rest) = Rest.split('\0');
    process_info.GetArguments().AppendArgument(Arg);
  }

  return true;
}