#include "llvm/CallingConv.h"
#include "llvm/DerivedTypes.h"
#include "llvm/Module.h"
+#include "llvm/MDNode.h"
#include "llvm/Type.h"
#include "llvm/ADT/Statistic.h"
#include "llvm/ADT/StringExtras.h"
static cl::opt<bool> NewAsmPrinter("experimental-asm-printer",
cl::Hidden);
-static std::string getPICLabelString(unsigned FnNum,
- const TargetAsmInfo *TAI,
- const X86Subtarget* Subtarget) {
- std::string label;
+//===----------------------------------------------------------------------===//
+// Primitive Helper Functions.
+//===----------------------------------------------------------------------===//
+
+void X86ATTAsmPrinter::PrintPICBaseSymbol() const {
if (Subtarget->isTargetDarwin())
- label = "\"L" + utostr_32(FnNum) + "$pb\"";
+ O << "\"L" << getFunctionNumber() << "$pb\"";
else if (Subtarget->isTargetELF())
- label = ".Lllvm$" + utostr_32(FnNum) + "." "$piclabel";
+ O << ".Lllvm$" << getFunctionNumber() << ".$piclabel";
else
assert(0 && "Don't know how to print PIC label!\n");
+}
- return label;
+/// PrintUnmangledNameSafely - Print out the printable characters in the name.
+/// Don't print things like \\n or \\0.
+static void PrintUnmangledNameSafely(const Value *V, raw_ostream &OS) {
+ for (const char *Name = V->getNameStart(), *E = Name+V->getNameLen();
+ Name != E; ++Name)
+ if (isprint(*Name))
+ OS << *Name;
}
static X86MachineFunctionInfo calculateFunctionInfo(const Function *F,
return Info;
}
-/// PrintUnmangledNameSafely - Print out the printable characters in the name.
-/// Don't print things like \\n or \\0.
-static void PrintUnmangledNameSafely(const Value *V, raw_ostream &OS) {
- for (const char *Name = V->getNameStart(), *E = Name+V->getNameLen();
- Name != E; ++Name)
- if (isprint(*Name))
- OS << *Name;
-}
-
/// decorateName - Query FunctionInfoMap and use this information for various
/// name decoration.
void X86ATTAsmPrinter::decorateName(std::string &Name,
}
void X86ATTAsmPrinter::emitFunctionHeader(const MachineFunction &MF) {
+ unsigned FnAlign = MF.getAlignment();
const Function *F = MF.getFunction();
decorateName(CurrentFnName, F);
SwitchToSection(TAI->SectionForGlobal(F));
-
- unsigned FnAlign = 4;
- if (F->hasFnAttr(Attribute::OptimizeForSize))
- FnAlign = 1;
switch (F->getLinkage()) {
default: assert(0 && "Unknown linkage type!");
case Function::InternalLinkage: // Symbols default to internal.
return false;
}
-static inline bool shouldPrintGOT(TargetMachine &TM, const X86Subtarget* ST) {
- return ST->isPICStyleGOT() && TM.getRelocationModel() == Reloc::PIC_;
-}
-
-static inline bool shouldPrintPLT(TargetMachine &TM, const X86Subtarget* ST) {
- return ST->isTargetELF() && TM.getRelocationModel() == Reloc::PIC_ &&
- (ST->isPICStyleRIPRel() || ST->isPICStyleGOT());
-}
-
-static inline bool shouldPrintStub(TargetMachine &TM, const X86Subtarget* ST) {
- return ST->isPICStyleStub() && TM.getRelocationModel() != Reloc::Static;
-}
-
/// print_pcrel_imm - This is used to print an immediate value that ends up
/// being encoded as a pc-relative value. These print slightly differently, for
/// example, a $ is not emitted.
needCloseParen = true;
}
- if (shouldPrintStub(TM, Subtarget)) {
- // Link-once, declaration, or Weakly-linked global variables need
- // non-lazily-resolved stubs
- if (GV->isDeclaration() || GV->isWeakForLinker()) {
- // Dynamically-resolved functions need a stub for the function.
- if (isa<Function>(GV)) {
- // Function stubs are no longer needed for Mac OS X 10.5 and up.
- if (Subtarget->isTargetDarwin() && Subtarget->getDarwinVers() >= 9) {
- O << Name;
- } else {
- FnStubs.insert(Name);
- printSuffixedName(Name, "$stub");
- }
- } else if (GV->hasHiddenVisibility()) {
- if (!GV->isDeclaration() && !GV->hasCommonLinkage())
- // Definition is not definitely in the current translation unit.
- O << Name;
- else {
- HiddenGVStubs.insert(Name);
- printSuffixedName(Name, "$non_lazy_ptr");
- }
- } else {
- GVStubs.insert(Name);
- printSuffixedName(Name, "$non_lazy_ptr");
- }
- } else {
- if (GV->hasDLLImportLinkage())
- O << "__imp_";
- O << Name;
- }
+ // Handle dllimport linkage.
+ if (MO.getTargetFlags() == X86II::MO_DLLIMPORT)
+ O << "__imp_";
+
+ if (MO.getTargetFlags() == X86II::MO_DARWIN_STUB) {
+ FnStubs.insert(Name);
+ printSuffixedName(Name, "$stub");
} else {
- if (GV->hasDLLImportLinkage()) {
- O << "__imp_";
- }
O << Name;
-
- if (shouldPrintPLT(TM, Subtarget)) {
- // Assemble call via PLT for externally visible symbols
- if (!GV->hasHiddenVisibility() && !GV->hasProtectedVisibility() &&
- !GV->hasLocalLinkage())
- O << "@PLT";
- }
- if (Subtarget->isTargetCygMing() && GV->isDeclaration())
- // Save function name for later type emission
- FnStubs.insert(Name);
}
+ // Assemble call via PLT for externally visible symbols.
+ if (MO.getTargetFlags() == X86II::MO_PLT)
+ O << "@PLT";
+
+ if (Subtarget->isTargetCygMing() && GV->isDeclaration())
+ // Save function name for later type emission
+ CygMingStubs.insert(Name);
+
printOffset(MO.getOffset());
if (needCloseParen)
bool needCloseParen = false;
std::string Name(TAI->getGlobalPrefix());
Name += MO.getSymbolName();
- // Print function stub suffix unless it's Mac OS X 10.5 and up.
- if (shouldPrintStub(TM, Subtarget) &&
- !(Subtarget->isTargetDarwin() && Subtarget->getDarwinVers() >= 9)) {
- FnStubs.insert(Name);
- printSuffixedName(Name, "$stub");
- return;
- }
-
+
if (Name[0] == '$') {
// The name begins with a dollar-sign. In order to avoid having it look
// like an integer immediate to the assembler, enclose it in parens.
needCloseParen = true;
}
- O << Name;
+ if (MO.getTargetFlags() == X86II::MO_DARWIN_STUB) {
+ FnStubs.insert(Name);
+ printSuffixedName(Name, "$stub");
+ } else {
+ O << Name;
+ }
- if (shouldPrintPLT(TM, Subtarget)) {
- std::string GOTName(TAI->getGlobalPrefix());
- GOTName+="_GLOBAL_OFFSET_TABLE_";
- if (Name == GOTName)
- // HACK! Emit extra offset to PC during printing GOT offset to
- // compensate for the size of popl instruction. The resulting code
- // should look like:
- // call .piclabel
- // piclabel:
- // popl %some_register
- // addl $_GLOBAL_ADDRESS_TABLE_ + [.-piclabel], %some_register
- O << " + [.-"
- << getPICLabelString(getFunctionNumber(), TAI, Subtarget) << ']';
-
- O << "@PLT";
+ if (MO.getTargetFlags() == X86II::MO_GOT_ABSOLUTE_ADDRESS) {
+ O << " + [.-";
+ PrintPICBaseSymbol();
+ O << ']';
}
+ if (MO.getTargetFlags() == X86II::MO_PLT)
+ O << "@PLT";
+
if (needCloseParen)
O << ')';
}
void X86ATTAsmPrinter::printOperand(const MachineInstr *MI, unsigned OpNo,
- const char *Modifier, bool NotRIPRel) {
+ const char *Modifier) {
const MachineOperand &MO = MI->getOperand(OpNo);
switch (MO.getType()) {
+ default: assert(0 && "unknown operand type!");
case MachineOperand::MO_Register: {
assert(TargetRegisterInfo::isPhysicalRegister(MO.getReg()) &&
"Virtual registers should not make it this far!");
}
case MachineOperand::MO_Immediate:
- if (!Modifier || (strcmp(Modifier, "debug") &&
- strcmp(Modifier, "mem")))
+ if (!Modifier || (strcmp(Modifier, "debug") && strcmp(Modifier, "mem")))
O << '$';
O << MO.getImm();
return;
if (!isMemOp) O << '$';
O << TAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber() << '_'
<< MO.getIndex();
-
- if (TM.getRelocationModel() == Reloc::PIC_) {
- if (Subtarget->isPICStyleStub())
- O << "-\"" << TAI->getPrivateGlobalPrefix() << getFunctionNumber()
- << "$pb\"";
- else if (Subtarget->isPICStyleGOT())
- O << "@GOTOFF";
- }
-
- if (isMemOp && Subtarget->isPICStyleRIPRel() && !NotRIPRel)
- O << "(%rip)";
- return;
+ break;
}
case MachineOperand::MO_ConstantPoolIndex: {
bool isMemOp = Modifier && !strcmp(Modifier, "mem");
O << TAI->getPrivateGlobalPrefix() << "CPI" << getFunctionNumber() << '_'
<< MO.getIndex();
- if (TM.getRelocationModel() == Reloc::PIC_) {
- if (Subtarget->isPICStyleStub())
- O << "-\"" << TAI->getPrivateGlobalPrefix() << getFunctionNumber()
- << "$pb\"";
- else if (Subtarget->isPICStyleGOT())
- O << "@GOTOFF";
- }
-
printOffset(MO.getOffset());
-
- if (isMemOp && Subtarget->isPICStyleRIPRel() && !NotRIPRel)
- O << "(%rip)";
- return;
+ break;
}
case MachineOperand::MO_GlobalAddress: {
bool isMemOp = Modifier && !strcmp(Modifier, "mem");
- bool needCloseParen = false;
-
const GlobalValue *GV = MO.getGlobal();
- const GlobalVariable *GVar = dyn_cast<GlobalVariable>(GV);
- if (!GVar) {
- // If GV is an alias then use the aliasee for determining
- // thread-localness.
- if (const GlobalAlias *GA = dyn_cast<GlobalAlias>(GV))
- GVar =dyn_cast_or_null<GlobalVariable>(GA->resolveAliasedGlobal(false));
- }
-
- bool isThreadLocal = GVar && GVar->isThreadLocal();
-
std::string Name = Mang->getValueName(GV);
decorateName(Name, GV);
+ bool needCloseParen = false;
if (!isMemOp)
O << '$';
else if (Name[0] == '$') {
needCloseParen = true;
}
- if (shouldPrintStub(TM, Subtarget)) {
- // Link-once, declaration, or Weakly-linked global variables need
- // non-lazily-resolved stubs
- if (GV->isDeclaration() || GV->isWeakForLinker()) {
- // Dynamically-resolved functions need a stub for the function.
- if (GV->hasHiddenVisibility()) {
- if (!GV->isDeclaration() && !GV->hasCommonLinkage())
- // Definition is not definitely in the current translation unit.
- O << Name;
- else {
- HiddenGVStubs.insert(Name);
- printSuffixedName(Name, "$non_lazy_ptr");
- }
- } else {
- GVStubs.insert(Name);
- printSuffixedName(Name, "$non_lazy_ptr");
- }
- } else {
- if (GV->hasDLLImportLinkage())
- O << "__imp_";
- O << Name;
- }
-
- if (TM.getRelocationModel() == Reloc::PIC_)
- O << '-' << getPICLabelString(getFunctionNumber(), TAI, Subtarget);
+ // Handle dllimport linkage.
+ if (MO.getTargetFlags() == X86II::MO_DLLIMPORT) {
+ O << "__imp_" << Name;
+ } else if (MO.getTargetFlags() == X86II::MO_DARWIN_NONLAZY ||
+ MO.getTargetFlags() == X86II::MO_DARWIN_NONLAZY_PIC_BASE) {
+ GVStubs.insert(Name);
+ printSuffixedName(Name, "$non_lazy_ptr");
+ } else if (MO.getTargetFlags() == X86II::MO_DARWIN_HIDDEN_NONLAZY ||
+ MO.getTargetFlags() == X86II::MO_DARWIN_HIDDEN_NONLAZY_PIC_BASE){
+ HiddenGVStubs.insert(Name);
+ printSuffixedName(Name, "$non_lazy_ptr");
} else {
- if (GV->hasDLLImportLinkage())
- O << "__imp_";
O << Name;
}
- printOffset(MO.getOffset());
-
if (needCloseParen)
O << ')';
- bool isRIPRelative = false;
- if (isThreadLocal) {
- TLSModel::Model model = getTLSModel(GVar, TM.getRelocationModel());
- switch (model) {
- case TLSModel::GeneralDynamic:
- O << "@TLSGD";
- break;
- case TLSModel::LocalDynamic:
- // O << "@TLSLD"; // local dynamic not implemented
- O << "@TLSGD";
- break;
- case TLSModel::InitialExec:
- if (Subtarget->is64Bit()) {
- assert (!NotRIPRel);
- O << "@GOTTPOFF";
- isRIPRelative = true;
- } else {
- O << "@INDNTPOFF";
- }
- break;
- case TLSModel::LocalExec:
- if (Subtarget->is64Bit())
- O << "@TPOFF";
- else
- O << "@NTPOFF";
- break;
- default:
- assert (0 && "Unknown TLS model");
- }
- } else if (isMemOp) {
- if (shouldPrintGOT(TM, Subtarget)) {
- if (Subtarget->GVRequiresExtraLoad(GV, TM, false))
- O << "@GOT";
- else
- O << "@GOTOFF";
- } else if (Subtarget->isPICStyleRIPRel() &&
- !NotRIPRel) {
- if (TM.getRelocationModel() != Reloc::Static) {
- if (Subtarget->GVRequiresExtraLoad(GV, TM, false))
- O << "@GOTPCREL";
- }
-
- isRIPRelative = true;
- }
- }
-
- // Use rip when possible to reduce code size, except when
- // index or base register are also part of the address. e.g.
- // foo(%rip)(%rcx,%rax,4) is not legal.
- if (isRIPRelative)
- O << "(%rip)";
-
- return;
+ printOffset(MO.getOffset());
+ break;
}
- case MachineOperand::MO_ExternalSymbol: {
- bool isMemOp = Modifier && !strcmp(Modifier, "mem");
- bool needCloseParen = false;
- std::string Name(TAI->getGlobalPrefix());
- Name += MO.getSymbolName();
-
- // Print function stub suffix unless it's Mac OS X 10.5 and up.
- if (!isMemOp)
- O << '$';
- else if (Name[0] == '$') {
- // The name begins with a dollar-sign. In order to avoid having it look
- // like an integer immediate to the assembler, enclose it in parens.
- O << '(';
- needCloseParen = true;
- }
-
- O << Name;
-
- if (shouldPrintPLT(TM, Subtarget)) {
- std::string GOTName(TAI->getGlobalPrefix());
- GOTName+="_GLOBAL_OFFSET_TABLE_";
- if (Name == GOTName)
- // HACK! Emit extra offset to PC during printing GOT offset to
- // compensate for the size of popl instruction. The resulting code
- // should look like:
- // call .piclabel
- // piclabel:
- // popl %some_register
- // addl $_GLOBAL_ADDRESS_TABLE_ + [.-piclabel], %some_register
- O << " + [.-"
- << getPICLabelString(getFunctionNumber(), TAI, Subtarget) << ']';
- }
-
- if (needCloseParen)
- O << ')';
-
- if (Subtarget->isPICStyleRIPRel())
- O << "(%rip)";
- return;
+ case MachineOperand::MO_ExternalSymbol:
+ /// NOTE: MO_ExternalSymbol in a non-pcrel_imm context is *only* generated
+ /// by _GLOBAL_OFFSET_TABLE_ on X86-32. All others are call operands, which
+ /// are pcrel_imm's.
+ assert(!Subtarget->is64Bit());
+ // These are never used as memory operands.
+ assert(Modifier == 0 || strcmp(Modifier, "mem"));
+ O << '$';
+ O << TAI->getGlobalPrefix();
+ O << MO.getSymbolName();
+ break;
}
+
+ switch (MO.getTargetFlags()) {
default:
- O << "<unknown operand type>"; return;
+ assert(0 && "Unknown target flag on GV operand");
+ case X86II::MO_NO_FLAG: // No flag.
+ break;
+ case X86II::MO_DARWIN_NONLAZY:
+ case X86II::MO_DARWIN_HIDDEN_NONLAZY:
+ case X86II::MO_DLLIMPORT:
+ // These affect the name of the symbol, not any suffix.
+ break;
+ case X86II::MO_GOT_ABSOLUTE_ADDRESS:
+ O << " + [.-";
+ PrintPICBaseSymbol();
+ O << ']';
+ break;
+ case X86II::MO_PIC_BASE_OFFSET:
+ case X86II::MO_DARWIN_NONLAZY_PIC_BASE:
+ case X86II::MO_DARWIN_HIDDEN_NONLAZY_PIC_BASE:
+ O << '-';
+ PrintPICBaseSymbol();
+ break;
+ case X86II::MO_TLSGD: O << "@TLSGD"; break;
+ case X86II::MO_GOTTPOFF: O << "@GOTTPOFF"; break;
+ case X86II::MO_INDNTPOFF: O << "@INDNTPOFF"; break;
+ case X86II::MO_TPOFF: O << "@TPOFF"; break;
+ case X86II::MO_NTPOFF: O << "@NTPOFF"; break;
+ case X86II::MO_GOTPCREL: O << "@GOTPCREL"; break;
+ case X86II::MO_GOT: O << "@GOT"; break;
+ case X86II::MO_GOTOFF: O << "@GOTOFF"; break;
}
}
}
void X86ATTAsmPrinter::printLeaMemReference(const MachineInstr *MI, unsigned Op,
- const char *Modifier,
- bool NotRIPRel) {
- MachineOperand BaseReg = MI->getOperand(Op);
- MachineOperand IndexReg = MI->getOperand(Op+2);
+ const char *Modifier) {
+ const MachineOperand &BaseReg = MI->getOperand(Op);
+ const MachineOperand &IndexReg = MI->getOperand(Op+2);
const MachineOperand &DispSpec = MI->getOperand(Op+3);
- NotRIPRel |= IndexReg.getReg() || BaseReg.getReg();
- if (DispSpec.isGlobal() ||
- DispSpec.isCPI() ||
- DispSpec.isJTI() ||
- DispSpec.isSymbol()) {
- printOperand(MI, Op+3, "mem", NotRIPRel);
- } else {
+ // If we really don't want to print out (rip), don't.
+ bool HasBaseReg = BaseReg.getReg() != 0;
+ if (HasBaseReg && Modifier && !strcmp(Modifier, "no-rip") &&
+ BaseReg.getReg() == X86::RIP)
+ HasBaseReg = false;
+
+ // HasParenPart - True if we will print out the () part of the mem ref.
+ bool HasParenPart = IndexReg.getReg() || HasBaseReg;
+
+ if (DispSpec.isImm()) {
int DispVal = DispSpec.getImm();
- if (DispVal || (!IndexReg.getReg() && !BaseReg.getReg()))
+ if (DispVal || !HasParenPart)
O << DispVal;
+ } else {
+ assert(DispSpec.isGlobal() || DispSpec.isCPI() ||
+ DispSpec.isJTI() || DispSpec.isSymbol());
+ printOperand(MI, Op+3, "mem");
}
- if (IndexReg.getReg() || BaseReg.getReg()) {
- unsigned ScaleVal = MI->getOperand(Op+1).getImm();
- unsigned BaseRegOperand = 0, IndexRegOperand = 2;
-
- // There are cases where we can end up with ESP/RSP in the indexreg slot.
- // If this happens, swap the base/index register to support assemblers that
- // don't work when the index is *SP.
- if (IndexReg.getReg() == X86::ESP || IndexReg.getReg() == X86::RSP) {
- assert(ScaleVal == 1 && "Scale not supported for stack pointer!");
- std::swap(BaseReg, IndexReg);
- std::swap(BaseRegOperand, IndexRegOperand);
- }
+ if (HasParenPart) {
+ assert(IndexReg.getReg() != X86::ESP &&
+ "X86 doesn't allow scaling by ESP");
O << '(';
- if (BaseReg.getReg())
- printOperand(MI, Op+BaseRegOperand, Modifier);
+ if (HasBaseReg)
+ printOperand(MI, Op, Modifier);
if (IndexReg.getReg()) {
O << ',';
- printOperand(MI, Op+IndexRegOperand, Modifier);
+ printOperand(MI, Op+2, Modifier);
+ unsigned ScaleVal = MI->getOperand(Op+1).getImm();
if (ScaleVal != 1)
O << ',' << ScaleVal;
}
}
void X86ATTAsmPrinter::printMemReference(const MachineInstr *MI, unsigned Op,
- const char *Modifier, bool NotRIPRel){
+ const char *Modifier) {
assert(isMem(MI, Op) && "Invalid memory reference!");
- MachineOperand Segment = MI->getOperand(Op+4);
+ const MachineOperand &Segment = MI->getOperand(Op+4);
if (Segment.getReg()) {
- printOperand(MI, Op+4, Modifier);
- O << ':';
- }
- printLeaMemReference(MI, Op, Modifier, NotRIPRel);
+ printOperand(MI, Op+4, Modifier);
+ O << ':';
+ }
+ printLeaMemReference(MI, Op, Modifier);
}
void X86ATTAsmPrinter::printPICJumpTableSetLabel(unsigned uid,
if (Subtarget->isPICStyleRIPRel())
O << '-' << TAI->getPrivateGlobalPrefix() << "JTI" << getFunctionNumber()
<< '_' << uid << '\n';
- else
- O << '-' << getPICLabelString(getFunctionNumber(), TAI, Subtarget) << '\n';
+ else {
+ O << '-';
+ PrintPICBaseSymbol();
+ O << '\n';
+ }
}
+
void X86ATTAsmPrinter::printPICLabel(const MachineInstr *MI, unsigned Op) {
- std::string label = getPICLabelString(getFunctionNumber(), TAI, Subtarget);
- O << label << '\n' << label << ':';
+ PrintPICBaseSymbol();
+ O << '\n';
+ PrintPICBaseSymbol();
+ O << ':';
}
switch (ExtraCode[0]) {
default: return true; // Unknown modifier.
case 'c': // Don't print "$" before a global var name or constant.
- printOperand(MI, OpNo, "mem", /*NotRIPRel=*/true);
+ printOperand(MI, OpNo, "mem");
return false;
case 'b': // Print QImode register
case 'h': // Print QImode high register
printOperand(MI, OpNo);
return false;
- case 'P': // Don't print @PLT, but do print as memory.
- printOperand(MI, OpNo, "mem", /*NotRIPRel=*/true);
+ case 'P': // This is the operand of a call, treat specially.
+ print_pcrel_imm(MI, OpNo);
return false;
+
+ case 'n': { // Negate the immediate or print a '-' before the operand.
+ // Note: this is a temporary solution. It should be handled target
+ // independently as part of the 'MC' work.
+ const MachineOperand &MO = MI->getOperand(OpNo);
+ if (MO.isImm()) {
+ O << -MO.getImm();
+ return false;
+ }
+ O << '-';
+ }
}
}
// These only apply to registers, ignore on mem.
break;
case 'P': // Don't print @PLT, but do print as memory.
- printMemReference(MI, OpNo, "mem", /*NotRIPRel=*/true);
+ printMemReference(MI, OpNo, "no-rip");
return false;
}
}
/// doInitialization
bool X86ATTAsmPrinter::doInitialization(Module &M) {
- if (TAI->doesSupportDebugInformation() || TAI->doesSupportExceptionHandling())
- MMI = getAnalysisIfAvailable<MachineModuleInfo>();
-
if (NewAsmPrinter) {
Context = new MCContext();
// FIXME: Send this to "O" instead of outs(). For now, we force it to
std::string name = Mang->getValueName(GVar);
Constant *C = GVar->getInitializer();
+ if (isa<MDNode>(C) || isa<MDString>(C))
+ return;
const Type *Type = C->getType();
unsigned Size = TD->getTypeAllocSize(Type);
unsigned Align = TD->getPreferredAlignmentLog(GVar);
O << "\t.subsections_via_symbols\n";
} else if (Subtarget->isTargetCygMing()) {
// Emit type information for external functions
- for (StringSet<>::iterator i = FnStubs.begin(), e = FnStubs.end();
+ for (StringSet<>::iterator i = CygMingStubs.begin(), e = CygMingStubs.end();
i != e; ++i) {
O << "\t.def\t " << i->getKeyData()
<< ";\t.scl\t" << COFF::C_EXT
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