}
			if target.Is386() && target.IsExternal() && target.IsELF {
				nExtReloc++ // need two ELF relocations on 386, see ../x86/asm.go:elfreloc1
			}
			fallthrough
		case objabi.R_CALL, objabi.R_PCREL:
			if target.IsExternal() && rs != 0 && rst == sym.SUNDEFEXT {
				// pass through to the external linker.
				nExtReloc++
				o = 0
				break
			}

    // Find out the compose function
    auto compose_func_name = GetComposeFuncName(op->getName().getStringRef());
    auto compose_func = table.lookup<TFRFuncOp>(compose_func_name);
    if (!compose_func || compose_func.isExternal()) {
      // There are no decomposition methods defined for this op, skip.
      return WalkResult::advance();
    }

    // Make sure all the attributes are valid. An attribute is valid when it is

    override val isInline: Boolean get() = withValidityAssertion { false }
    override val isFun: Boolean get() = withValidityAssertion { false }
    override val isExternal: Boolean get() = withValidityAssertion { false }
    override val isActual: Boolean get() = withValidityAssertion { false }
    override val isExpect: Boolean get() = withValidityAssertion { false }

var NotVM = Not(VM)

// External matches instances that have a custom DefaultHostHeader defined
var External Matcher = func(i echo.Instance) bool {
	return i.Config().IsExternal()
}

// NotExternal is equivalent to Not(External)
var NotExternal = Not(External)

// Naked matches instances with any subset marked with SidecarInject equal to false.

func (c Config) DeepCopy() Config {
	newc := c
	newc.Cluster = nil
	newc = copyInternal(newc).(Config)
	newc.Cluster = c.Cluster
	newc.Namespace = c.Namespace
	return newc
}

func (c Config) IsExternal() bool {
	return c.HostHeader() != c.ClusterLocalFQDN()
}

const (
	defaultService   = "echo"
	defaultVersion   = "v1"
	defaultNamespace = "echo"
	defaultDomain    = constants.DefaultClusterLocalDomain

		sb = ctxt.loader.MakeSymbolUpdater(s)
		sb.SetType(sym.SMACHOINDIRECTGOT)
		sb.SetReachable(true)
	}

	// Add a dummy symbol that will become the __asm marker section.
	if ctxt.IsExternal() {
		s = ctxt.loader.LookupOrCreateSym(".llvmasm", 0)
		sb = ctxt.loader.MakeSymbolUpdater(s)
		sb.SetType(sym.SMACHO)
		sb.SetReachable(true)
		sb.AddUint8(0)
	}

  // external func ops have the trailing underscore.
  std::string external_callee_name = call_op.getCallee().str().append("_");
  TFRFuncOp func = symbol_table_.lookup<TFRFuncOp>(external_callee_name);
  if (!func || !func.isExternal()) return failure();
  // Get the inputs and attributes. The attributes include these from the
  // argument list and also these derived from the inputs.
  SmallVector<Value, 4> inputs;
  NamedAttrList argument_attrs;

	}

	// generate .tbss section for dynamic internal linker or external
	// linking, so that various binutils could correctly calculate
	// PT_TLS size. See https://golang.org/issue/5200.
	if !*FlagD || ctxt.IsExternal() {
		shstrtabAddstring(".tbss")
	}
	if ctxt.IsNetbsd() {
		shstrtabAddstring(".note.netbsd.ident")
		if *flagRace {
			shstrtabAddstring(".note.netbsd.pax")
		}
	}
	if ctxt.IsOpenbsd() {

		// so we make sure we're pulling in all outer symbols, and their sub
		// symbols. This is not ideal, and these carrier/section symbols could
		// be removed.
		if d.ldr.IsExternal(symIdx) {
			d.mark(d.ldr.OuterSym(symIdx), symIdx)
			d.mark(d.ldr.SubSym(symIdx), symIdx)
		}

		if len(methods) != 0 {
			if !isgotype {
				panic("method found on non-type symbol")
			}

  // because the symbol user map is invalidated once we start deleting while
  // ops.
  for (auto func : module.getOps<func::FuncOp>()) {
    if (func.isExternal()) continue;
    SmallVector<TF::WhileOp> while_callers = GetWhileCallers(func, symbol_map);
    if (while_callers.empty()) continue;
    while_body_func_to_while_ops[func] = while_callers;