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

static bool
GetFreeBSDProcessUserAndGroup(ProcessInstanceInfo &process_info)
{
    struct kinfo_proc proc_kinfo;
    size_t proc_kinfo_size;

    if (process_info.ProcessIDIsValid())
    {
        int mib[4] = { CTL_KERN, KERN_PROC, KERN_PROC_PID,
            (int)process_info.GetProcessID() };
        proc_kinfo_size = sizeof(struct kinfo_proc);

        if (::sysctl (mib, 4, &proc_kinfo, &proc_kinfo_size, NULL, 0) == 0)
        {
            if (proc_kinfo_size > 0)
            {
                process_info.SetParentProcessID (proc_kinfo.ki_ppid);
                process_info.SetUserID (proc_kinfo.ki_ruid);
                process_info.SetGroupID (proc_kinfo.ki_rgid);
                process_info.SetEffectiveUserID (proc_kinfo.ki_uid);
                if (proc_kinfo.ki_ngroups > 0)
                    process_info.SetEffectiveGroupID (proc_kinfo.ki_groups[0]);
                else
                    process_info.SetEffectiveGroupID (UINT32_MAX);
                return true;
            }
        }
    }
    process_info.SetParentProcessID (LLDB_INVALID_PROCESS_ID);
    process_info.SetUserID (UINT32_MAX);
    process_info.SetGroupID (UINT32_MAX);
    process_info.SetEffectiveUserID (UINT32_MAX);
    process_info.SetEffectiveGroupID (UINT32_MAX);
    return false;
}

static bool
GetNetBSDProcessArgs (const ProcessInstanceInfoMatch *match_info_ptr,
                      ProcessInstanceInfo &process_info)
{
    if (!process_info.ProcessIDIsValid())
        return false;

    int pid = process_info.GetProcessID();

    int mib[4] = { CTL_KERN, KERN_PROC_ARGS, pid, KERN_PROC_ARGV };

    char arg_data[8192];
    size_t arg_data_size = sizeof(arg_data);
    if (::sysctl (mib, 4, arg_data, &arg_data_size , NULL, 0) != 0)
        return false;

    DataExtractor data (arg_data, arg_data_size, lldb::endian::InlHostByteOrder(), sizeof(void *));
    lldb::offset_t offset = 0;
    const char *cstr;

    cstr = data.GetCStr (&offset);
    if (!cstr)
        return false;

    process_info.GetExecutableFile().SetFile(cstr, false);

    if (!(match_info_ptr == NULL ||
            NameMatches (process_info.GetExecutableFile().GetFilename().GetCString(),
                         match_info_ptr->GetNameMatchType(),
                         match_info_ptr->GetProcessInfo().GetName())))
        return false;

    Args &proc_args = process_info.GetArguments();
    while (1)
    {
        const uint8_t *p = data.PeekData(offset, 1);
        while ((p != NULL) && (*p == '\0') && offset < arg_data_size)
        {
            ++offset;
            p = data.PeekData(offset, 1);
        }
        if (p == NULL || offset >= arg_data_size)
            break;

        cstr = data.GetCStr(&offset);
        if (!cstr)
            break;

        proc_args.AppendArgument(cstr);
    }

    return true;
}

static bool
GetNetBSDProcessUserAndGroup(ProcessInstanceInfo &process_info)
{
    ::kvm_t *kdp;
    char errbuf[_POSIX2_LINE_MAX]; /* XXX: error string unused */

    struct ::kinfo_proc2 *proc_kinfo;
    const int pid = process_info.GetProcessID();
    int nproc;

    if (!process_info.ProcessIDIsValid())
        goto error;

    if ((kdp = ::kvm_openfiles(NULL, NULL, NULL, KVM_NO_FILES, errbuf)) == NULL)
        goto error;

    if ((proc_kinfo = ::kvm_getproc2(kdp, KERN_PROC_PID, pid,
                                     sizeof(struct ::kinfo_proc2),
                                     &nproc)) == NULL) {
        ::kvm_close(kdp);
        goto error;
    }

    if (nproc < 1) {
        ::kvm_close(kdp); /* XXX: we don't check for error here */
        goto error;
    }

    process_info.SetParentProcessID (proc_kinfo->p_ppid);
    process_info.SetUserID (proc_kinfo->p_ruid);
    process_info.SetGroupID (proc_kinfo->p_rgid);
    process_info.SetEffectiveUserID (proc_kinfo->p_uid);
    process_info.SetEffectiveGroupID (proc_kinfo->p_gid);

    ::kvm_close(kdp); /* XXX: we don't check for error here */

    return true;

error:
    process_info.SetParentProcessID (LLDB_INVALID_PROCESS_ID);
    process_info.SetUserID (UINT32_MAX);
    process_info.SetGroupID (UINT32_MAX);
    process_info.SetEffectiveUserID (UINT32_MAX);
    process_info.SetEffectiveGroupID (UINT32_MAX);
    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());
  }
}