C++ ArchSpec::SetArchitecture方法代码示例

static bool
COFFMachineToMachCPU (uint16_t machine, ArchSpec &arch)
{
    switch (machine)
    {
    case IMAGE_FILE_MACHINE_AMD64:
    case IMAGE_FILE_MACHINE_IA64:
        arch.SetArchitecture (eArchTypeMachO,
                              llvm::MachO::CPUTypeX86_64,
                              llvm::MachO::CPUSubType_X86_64_ALL);
        return true;

    case IMAGE_FILE_MACHINE_I386:
        arch.SetArchitecture (eArchTypeMachO,
                              llvm::MachO::CPUTypeI386,
                              llvm::MachO::CPUSubType_I386_ALL);
        return true;

    case IMAGE_FILE_MACHINE_POWERPC:
    case IMAGE_FILE_MACHINE_POWERPCFP:
        arch.SetArchitecture (eArchTypeMachO,
                              llvm::MachO::CPUTypePowerPC,
                              llvm::MachO::CPUSubType_POWERPC_ALL);
        return true;
    case IMAGE_FILE_MACHINE_ARM:
    case IMAGE_FILE_MACHINE_THUMB:
        arch.SetArchitecture (eArchTypeMachO,
                              llvm::MachO::CPUTypeARM,
                              llvm::MachO::CPUSubType_ARM_V7);
        return true;
    }
    return false;
}

bool ObjectContainerUniversalMachO::GetArchitectureAtIndex(
    uint32_t idx, ArchSpec &arch) const {
  if (idx < m_header.nfat_arch) {
    arch.SetArchitecture(eArchTypeMachO, m_fat_archs[idx].cputype,
                         m_fat_archs[idx].cpusubtype);
    return true;
  }
  return false;
}

bool
ObjectFileELF::GetArchitecture (ArchSpec &arch)
{
    if (!ParseHeader())
        return false;

    arch.SetArchitecture (eArchTypeELF, m_header.e_machine, LLDB_INVALID_CPUTYPE);
    arch.GetTriple().setOSName (Host::GetOSString().GetCString());
    arch.GetTriple().setVendorName(Host::GetVendorString().GetCString());
    return true;
}

static bool
ParseMachCPUDashSubtypeTriple (const char *triple_cstr, ArchSpec &arch)
{
    // Accept "12-10" or "12.10" as cpu type/subtype
    if (isdigit(triple_cstr[0]))
    {
        char *end = NULL;
        errno = 0;
        uint32_t cpu = ::strtoul (triple_cstr, &end, 0);
        if (errno == 0 && cpu != 0 && end && ((*end == '-') || (*end == '.')))
        {
            errno = 0;
            uint32_t sub = ::strtoul (end + 1, &end, 0);
            if (errno == 0 && end && ((*end == '-') || (*end == '.') || (*end == '\0')))
            {
                if (arch.SetArchitecture (eArchTypeMachO, cpu, sub))
                {
                    if (*end == '-')
                    {
                        llvm::StringRef vendor_os (end + 1);
                        size_t dash_pos = vendor_os.find('-');
                        if (dash_pos != llvm::StringRef::npos)
                        {
                            llvm::StringRef vendor_str(vendor_os.substr(0, dash_pos));
                            arch.GetTriple().setVendorName(vendor_str);
                            const size_t vendor_start_pos = dash_pos+1;
                            dash_pos = vendor_os.find(vendor_start_pos, '-');
                            if (dash_pos == llvm::StringRef::npos)
                            {
                                if (vendor_start_pos < vendor_os.size())
                                    arch.GetTriple().setOSName(vendor_os.substr(vendor_start_pos));
                            }
                            else
                            {
                                arch.GetTriple().setOSName(vendor_os.substr(vendor_start_pos, dash_pos - vendor_start_pos));
                            }
                        }
                    }
                    return true;
                }
            }
        }
    }
    return false;
}

void
ProcessKDP::DidAttach (ArchSpec &process_arch)
{
    Process::DidAttach(process_arch);
    
    Log *log (ProcessKDPLog::GetLogIfAllCategoriesSet (KDP_LOG_PROCESS));
    if (log)
        log->Printf ("ProcessKDP::DidAttach()");
    if (GetID() != LLDB_INVALID_PROCESS_ID)
    {
        uint32_t cpu = m_comm.GetCPUType();
        if (cpu)
        {
            uint32_t sub = m_comm.GetCPUSubtype();
            process_arch.SetArchitecture(eArchTypeMachO, cpu, sub);
        }
    }
}

bool ObjectFilePECOFF::GetArchitecture(ArchSpec &arch) {
  uint16_t machine = m_coff_header.machine;
  switch (machine) {
  case llvm::COFF::IMAGE_FILE_MACHINE_AMD64:
  case llvm::COFF::IMAGE_FILE_MACHINE_I386:
  case llvm::COFF::IMAGE_FILE_MACHINE_POWERPC:
  case llvm::COFF::IMAGE_FILE_MACHINE_POWERPCFP:
  case llvm::COFF::IMAGE_FILE_MACHINE_ARM:
  case llvm::COFF::IMAGE_FILE_MACHINE_ARMNT:
  case llvm::COFF::IMAGE_FILE_MACHINE_THUMB:
    arch.SetArchitecture(eArchTypeCOFF, machine, LLDB_INVALID_CPUTYPE,
                         IsWindowsSubsystem() ? llvm::Triple::Win32
                                              : llvm::Triple::UnknownOS);
    return true;
  default:
    break;
  }
  return false;
}

const ArchSpec &
Host::GetArchitecture (SystemDefaultArchitecture arch_kind)
{
    static bool g_supports_32 = false;
    static bool g_supports_64 = false;
    static ArchSpec g_host_arch_32;
    static ArchSpec g_host_arch_64;

#if defined (__APPLE__)

    // Apple is different in that it can support both 32 and 64 bit executables
    // in the same operating system running concurrently. Here we detect the
    // correct host architectures for both 32 and 64 bit including if 64 bit
    // executables are supported on the system.

    if (g_supports_32 == false && g_supports_64 == false)
    {
        // All apple systems support 32 bit execution.
        g_supports_32 = true;
        uint32_t cputype, cpusubtype;
        uint32_t is_64_bit_capable = false;
        size_t len = sizeof(cputype);
        ArchSpec host_arch;
        // These will tell us about the kernel architecture, which even on a 64
        // bit machine can be 32 bit...
        if  (::sysctlbyname("hw.cputype", &cputype, &len, NULL, 0) == 0)
        {
            len = sizeof (cpusubtype);
            if (::sysctlbyname("hw.cpusubtype", &cpusubtype, &len, NULL, 0) != 0)
                cpusubtype = CPU_TYPE_ANY;
                
            len = sizeof (is_64_bit_capable);
            if  (::sysctlbyname("hw.cpu64bit_capable", &is_64_bit_capable, &len, NULL, 0) == 0)
            {
                if (is_64_bit_capable)
                    g_supports_64 = true;
            }
            
            if (is_64_bit_capable)
            {
#if defined (__i386__) || defined (__x86_64__)
                if (cpusubtype == CPU_SUBTYPE_486)
                    cpusubtype = CPU_SUBTYPE_I386_ALL;
#endif
                if (cputype & CPU_ARCH_ABI64)
                {
                    // We have a 64 bit kernel on a 64 bit system
                    g_host_arch_32.SetArchitecture (eArchTypeMachO, ~(CPU_ARCH_MASK) & cputype, cpusubtype);
                    g_host_arch_64.SetArchitecture (eArchTypeMachO, cputype, cpusubtype);
                }
                else
                {
                    // We have a 32 bit kernel on a 64 bit system
                    g_host_arch_32.SetArchitecture (eArchTypeMachO, cputype, cpusubtype);
                    cputype |= CPU_ARCH_ABI64;
                    g_host_arch_64.SetArchitecture (eArchTypeMachO, cputype, cpusubtype);
                }
            }
            else
            {
                g_host_arch_32.SetArchitecture (eArchTypeMachO, cputype, cpusubtype);
                g_host_arch_64.Clear();
            }
        }
    }
    
#else // #if defined (__APPLE__)

    if (g_supports_32 == false && g_supports_64 == false)
    {
        llvm::Triple triple(llvm::sys::getDefaultTargetTriple());

        g_host_arch_32.Clear();
        g_host_arch_64.Clear();

        switch (triple.getArch())
        {
        default:
            g_host_arch_32.SetTriple(triple);
            g_supports_32 = true;
            break;

        case llvm::Triple::x86_64:
        case llvm::Triple::sparcv9:
        case llvm::Triple::ppc64:
        case llvm::Triple::cellspu:
            g_host_arch_64.SetTriple(triple);
            g_supports_64 = true;
            break;
        }

        g_supports_32 = g_host_arch_32.IsValid();
        g_supports_64 = g_host_arch_64.IsValid();
    }
    
#endif // #else for #if defined (__APPLE__)
    
    if (arch_kind == eSystemDefaultArchitecture32)
        return g_host_arch_32;
    else if (arch_kind == eSystemDefaultArchitecture64)
//.........这里部分代码省略.........