-//===- lib/MC/MCAsmStreamer.cpp - Text Assembly Output --------------------===//
+//===- lib/MC/MCAsmStreamer.cpp - Text Assembly Output ----------*- C++ -*-===//
//
// The LLVM Compiler Infrastructure
//
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/Format.h"
#include "llvm/Support/FormattedStream.h"
+#include "llvm/Support/LEB128.h"
#include "llvm/Support/MathExtras.h"
#include "llvm/Support/Path.h"
#include <cctype>
+
using namespace llvm;
namespace {
}
EmitCommentsAndEOL();
}
+
+ void EmitSyntaxDirective() override;
+
void EmitCommentsAndEOL();
/// isVerboseAsm - Return true if this streamer supports verbose assembly at
void EmitBytes(StringRef Data) override;
void EmitValueImpl(const MCExpr *Value, unsigned Size,
- const SMLoc &Loc = SMLoc()) override;
+ SMLoc Loc = SMLoc()) override;
void EmitIntValue(uint64_t Value, unsigned Size) override;
void EmitULEB128Value(const MCExpr *Value) override;
void EmitCodeAlignment(unsigned ByteAlignment,
unsigned MaxBytesToEmit = 0) override;
- bool EmitValueToOffset(const MCExpr *Offset,
+ void emitValueToOffset(const MCExpr *Offset,
unsigned char Value = 0) override;
void EmitFileDirective(StringRef Filename) override;
void EmitCFISameValue(int64_t Register) override;
void EmitCFIRelOffset(int64_t Register, int64_t Offset) override;
void EmitCFIAdjustCfaOffset(int64_t Adjustment) override;
+ void EmitCFIEscape(StringRef Values) override;
+ void EmitCFIGnuArgsSize(int64_t Size) override;
void EmitCFISignalFrame() override;
void EmitCFIUndefined(int64_t Register) override;
void EmitCFIRegister(int64_t Register1, int64_t Register2) override;
void MCAsmStreamer::AddComment(const Twine &T) {
if (!IsVerboseAsm) return;
- // Make sure that CommentStream is flushed.
- CommentStream.flush();
-
T.toVector(CommentToEmit);
// Each comment goes on its own line.
CommentToEmit.push_back('\n');
-
- // Tell the comment stream that the vector changed underneath it.
- CommentStream.resync();
}
void MCAsmStreamer::EmitCommentsAndEOL() {
return;
}
- CommentStream.flush();
StringRef Comments = CommentToEmit;
assert(Comments.back() == '\n' &&
} while (!Comments.empty());
CommentToEmit.clear();
- // Tell the comment stream that the vector changed underneath it.
- CommentStream.resync();
}
static inline int64_t truncateToSize(int64_t Value, unsigned Bytes) {
assert(Symbol->isUndefined() && "Cannot define a symbol twice!");
MCStreamer::EmitLabel(Symbol);
- OS << *Symbol << MAI->getLabelSuffix();
+ Symbol->print(OS, MAI);
+ OS << MAI->getLabelSuffix();
+
EmitEOL();
}
if (!IsFirst)
OS << ", ";
IsFirst = false;
- OS << **It;
+ (*It)->print(OS, MAI);
}
EmitEOL();
}
void MCAsmStreamer::EmitVersionMin(MCVersionMinType Kind, unsigned Major,
unsigned Minor, unsigned Update) {
switch (Kind) {
+ case MCVM_WatchOSVersionMin: OS << "\t.watchos_version_min"; break;
+ case MCVM_TvOSVersionMin: OS << "\t.tvos_version_min"; break;
case MCVM_IOSVersionMin: OS << "\t.ios_version_min"; break;
case MCVM_OSXVersionMin: OS << "\t.macosx_version_min"; break;
}
// MCSymbols when they have spaces in them.
OS << "\t.thumb_func";
// Only Mach-O hasSubsectionsViaSymbols()
- if (MAI->hasSubsectionsViaSymbols())
- OS << '\t' << *Func;
+ if (MAI->hasSubsectionsViaSymbols()) {
+ OS << '\t';
+ Func->print(OS, MAI);
+ }
EmitEOL();
}
void MCAsmStreamer::EmitAssignment(MCSymbol *Symbol, const MCExpr *Value) {
- OS << *Symbol << " = " << *Value;
+ Symbol->print(OS, MAI);
+ OS << " = ";
+ Value->print(OS, MAI);
+
EmitEOL();
MCStreamer::EmitAssignment(Symbol, Value);
}
void MCAsmStreamer::EmitWeakReference(MCSymbol *Alias, const MCSymbol *Symbol) {
- OS << ".weakref " << *Alias << ", " << *Symbol;
+ OS << ".weakref ";
+ Alias->print(OS, MAI);
+ OS << ", ";
+ Symbol->print(OS, MAI);
EmitEOL();
}
case MCSA_ELF_TypeGnuUniqueObject: /// .type _foo, @gnu_unique_object
if (!MAI->hasDotTypeDotSizeDirective())
return false; // Symbol attribute not supported
- OS << "\t.type\t" << *Symbol << ','
- << ((MAI->getCommentString()[0] != '@') ? '@' : '%');
+ OS << "\t.type\t";
+ Symbol->print(OS, MAI);
+ OS << ',' << ((MAI->getCommentString()[0] != '@') ? '@' : '%');
switch (Attribute) {
default: return false;
case MCSA_ELF_TypeFunction: OS << "function"; break;
case MCSA_WeakDefAutoPrivate: OS << "\t.weak_def_can_be_hidden\t"; break;
}
- OS << *Symbol;
+ Symbol->print(OS, MAI);
EmitEOL();
return true;
}
void MCAsmStreamer::EmitSymbolDesc(MCSymbol *Symbol, unsigned DescValue) {
- OS << ".desc" << ' ' << *Symbol << ',' << DescValue;
+ OS << ".desc" << ' ';
+ Symbol->print(OS, MAI);
+ OS << ',' << DescValue;
EmitEOL();
}
+void MCAsmStreamer::EmitSyntaxDirective() {
+ if (MAI->getAssemblerDialect() == 1)
+ OS << "\t.intel_syntax noprefix\n";
+ // FIXME: Currently emit unprefix'ed registers.
+ // The intel_syntax directive has one optional argument
+ // with may have a value of prefix or noprefix.
+}
+
void MCAsmStreamer::BeginCOFFSymbolDef(const MCSymbol *Symbol) {
- OS << "\t.def\t " << *Symbol << ';';
+ OS << "\t.def\t ";
+ Symbol->print(OS, MAI);
+ OS << ';';
EmitEOL();
}
}
void MCAsmStreamer::EmitCOFFSafeSEH(MCSymbol const *Symbol) {
- OS << "\t.safeseh\t" << *Symbol;
+ OS << "\t.safeseh\t";
+ Symbol->print(OS, MAI);
EmitEOL();
}
void MCAsmStreamer::EmitCOFFSectionIndex(MCSymbol const *Symbol) {
- OS << "\t.secidx\t" << *Symbol;
+ OS << "\t.secidx\t";
+ Symbol->print(OS, MAI);
EmitEOL();
}
void MCAsmStreamer::EmitCOFFSecRel32(MCSymbol const *Symbol) {
- OS << "\t.secrel32\t" << *Symbol;
+ OS << "\t.secrel32\t";
+ Symbol->print(OS, MAI);
EmitEOL();
}
void MCAsmStreamer::emitELFSize(MCSymbolELF *Symbol, const MCExpr *Value) {
assert(MAI->hasDotTypeDotSizeDirective());
- OS << "\t.size\t" << *Symbol << ", " << *Value << '\n';
+ OS << "\t.size\t";
+ Symbol->print(OS, MAI);
+ OS << ", ";
+ Value->print(OS, MAI);
+ OS << '\n';
}
void MCAsmStreamer::EmitCommonSymbol(MCSymbol *Symbol, uint64_t Size,
unsigned ByteAlignment) {
- // Common symbols do not belong to any actual section.
- AssignSection(Symbol, nullptr);
+ OS << "\t.comm\t";
+ Symbol->print(OS, MAI);
+ OS << ',' << Size;
- OS << "\t.comm\t" << *Symbol << ',' << Size;
if (ByteAlignment != 0) {
if (MAI->getCOMMDirectiveAlignmentIsInBytes())
OS << ',' << ByteAlignment;
/// @param Size - The size of the common symbol.
void MCAsmStreamer::EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size,
unsigned ByteAlign) {
- // Common symbols do not belong to any actual section.
- AssignSection(Symbol, nullptr);
+ OS << "\t.lcomm\t";
+ Symbol->print(OS, MAI);
+ OS << ',' << Size;
- OS << "\t.lcomm\t" << *Symbol << ',' << Size;
if (ByteAlign > 1) {
switch (MAI->getLCOMMDirectiveAlignmentType()) {
case LCOMM::NoAlignment:
void MCAsmStreamer::EmitZerofill(MCSection *Section, MCSymbol *Symbol,
uint64_t Size, unsigned ByteAlignment) {
if (Symbol)
- AssignSection(Symbol, Section);
+ AssignFragment(Symbol, &Section->getDummyFragment());
// Note: a .zerofill directive does not switch sections.
OS << ".zerofill ";
OS << MOSection->getSegmentName() << "," << MOSection->getSectionName();
if (Symbol) {
- OS << ',' << *Symbol << ',' << Size;
+ OS << ',';
+ Symbol->print(OS, MAI);
+ OS << ',' << Size;
if (ByteAlignment != 0)
OS << ',' << Log2_32(ByteAlignment);
}
// e.g. _a.
void MCAsmStreamer::EmitTBSSSymbol(MCSection *Section, MCSymbol *Symbol,
uint64_t Size, unsigned ByteAlignment) {
- AssignSection(Symbol, Section);
+ AssignFragment(Symbol, &Section->getDummyFragment());
assert(Symbol && "Symbol shouldn't be NULL!");
// Instead of using the Section we'll just use the shortcut.
// This is a mach-o specific directive and section.
- OS << ".tbss " << *Symbol << ", " << Size;
+ OS << ".tbss ";
+ Symbol->print(OS, MAI);
+ OS << ", " << Size;
// Output align if we have it. We default to 1 so don't bother printing
// that.
OS << '"';
}
-
void MCAsmStreamer::EmitBytes(StringRef Data) {
assert(getCurrentSection().first &&
"Cannot emit contents before setting section!");
}
void MCAsmStreamer::EmitValueImpl(const MCExpr *Value, unsigned Size,
- const SMLoc &Loc) {
+ SMLoc Loc) {
assert(Size <= 8 && "Invalid size");
assert(getCurrentSection().first &&
"Cannot emit contents before setting section!");
}
assert(Directive && "Invalid size for machine code value!");
- OS << Directive << *Value;
+ OS << Directive;
+ Value->print(OS, MAI);
EmitEOL();
}
EmitULEB128IntValue(IntValue);
return;
}
- OS << ".uleb128 " << *Value;
+ OS << ".uleb128 ";
+ Value->print(OS, MAI);
EmitEOL();
}
EmitSLEB128IntValue(IntValue);
return;
}
- OS << ".sleb128 " << *Value;
+ OS << ".sleb128 ";
+ Value->print(OS, MAI);
EmitEOL();
}
void MCAsmStreamer::EmitGPRel64Value(const MCExpr *Value) {
assert(MAI->getGPRel64Directive() != nullptr);
- OS << MAI->getGPRel64Directive() << *Value;
+ OS << MAI->getGPRel64Directive();
+ Value->print(OS, MAI);
EmitEOL();
}
void MCAsmStreamer::EmitGPRel32Value(const MCExpr *Value) {
assert(MAI->getGPRel32Directive() != nullptr);
- OS << MAI->getGPRel32Directive() << *Value;
+ OS << MAI->getGPRel32Directive();
+ Value->print(OS, MAI);
EmitEOL();
}
-
/// EmitFill - Emit NumBytes bytes worth of the value specified by
/// FillValue. This implements directives such as '.space'.
void MCAsmStreamer::EmitFill(uint64_t NumBytes, uint8_t FillValue) {
1, MaxBytesToEmit);
}
-bool MCAsmStreamer::EmitValueToOffset(const MCExpr *Offset,
+void MCAsmStreamer::emitValueToOffset(const MCExpr *Offset,
unsigned char Value) {
// FIXME: Verify that Offset is associated with the current section.
- OS << ".org " << *Offset << ", " << (unsigned) Value;
+ OS << ".org ";
+ Offset->print(OS, MAI);
+ OS << ", " << (unsigned)Value;
EmitEOL();
- return false;
}
-
void MCAsmStreamer::EmitFileDirective(StringRef Filename) {
assert(MAI->hasSingleParameterDotFile());
OS << "\t.file\t";
EmitEOL();
}
+static void PrintCFIEscape(llvm::formatted_raw_ostream &OS, StringRef Values) {
+ OS << "\t.cfi_escape ";
+ if (!Values.empty()) {
+ size_t e = Values.size() - 1;
+ for (size_t i = 0; i < e; ++i)
+ OS << format("0x%02x", uint8_t(Values[i])) << ", ";
+ OS << format("0x%02x", uint8_t(Values[e]));
+ }
+}
+
+void MCAsmStreamer::EmitCFIEscape(StringRef Values) {
+ MCStreamer::EmitCFIEscape(Values);
+ PrintCFIEscape(OS, Values);
+ EmitEOL();
+}
+
+void MCAsmStreamer::EmitCFIGnuArgsSize(int64_t Size) {
+ MCStreamer::EmitCFIGnuArgsSize(Size);
+
+ uint8_t Buffer[16] = { dwarf::DW_CFA_GNU_args_size };
+ unsigned Len = encodeULEB128(Size, Buffer + 1) + 1;
+
+ PrintCFIEscape(OS, StringRef((const char *)&Buffer[0], Len));
+ EmitEOL();
+}
+
void MCAsmStreamer::EmitCFIDefCfaRegister(int64_t Register) {
MCStreamer::EmitCFIDefCfaRegister(Register);
OS << "\t.cfi_def_cfa_register ";
void MCAsmStreamer::EmitCFIPersonality(const MCSymbol *Sym,
unsigned Encoding) {
MCStreamer::EmitCFIPersonality(Sym, Encoding);
- OS << "\t.cfi_personality " << Encoding << ", " << *Sym;
+ OS << "\t.cfi_personality " << Encoding << ", ";
+ Sym->print(OS, MAI);
EmitEOL();
}
void MCAsmStreamer::EmitCFILsda(const MCSymbol *Sym, unsigned Encoding) {
MCStreamer::EmitCFILsda(Sym, Encoding);
- OS << "\t.cfi_lsda " << Encoding << ", " << *Sym;
+ OS << "\t.cfi_lsda " << Encoding << ", ";
+ Sym->print(OS, MAI);
EmitEOL();
}
void MCAsmStreamer::EmitWinCFIStartProc(const MCSymbol *Symbol) {
MCStreamer::EmitWinCFIStartProc(Symbol);
- OS << ".seh_proc " << *Symbol;
+ OS << ".seh_proc ";
+ Symbol->print(OS, MAI);
EmitEOL();
}
bool Except) {
MCStreamer::EmitWinEHHandler(Sym, Unwind, Except);
- OS << "\t.seh_handler " << *Sym;
+ OS << "\t.seh_handler ";
+ Sym->print(OS, MAI);
if (Unwind)
OS << ", @unwind";
if (Except)
EmitEOL();
}
-void MCAsmStreamer::EmitWinCFIEndProlog(void) {
+void MCAsmStreamer::EmitWinCFIEndProlog() {
MCStreamer::EmitWinCFIEndProlog();
OS << "\t.seh_endprologue";
SmallVector<MCFixup, 4> Fixups;
raw_svector_ostream VecOS(Code);
Emitter->encodeInstruction(Inst, VecOS, Fixups, STI);
- VecOS.flush();
// If we are showing fixups, create symbolic markers in the encoded
// representation. We do this by making a per-bit map to the fixup item index,
GetCommentOS() << "\n";
}
- InstPrinter->printInst(&Inst, OS, "", STI);
+ if(getTargetStreamer())
+ getTargetStreamer()->prettyPrintAsm(*InstPrinter, OS, Inst, STI);
+ else
+ InstPrinter->printInst(&Inst, OS, "", STI);
EmitEOL();
}
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