2009-06-24 09:03:06 +08:00
|
|
|
//===- lib/MC/MCStreamer.cpp - Streaming Machine Code Output --------------===//
|
|
|
|
//
|
|
|
|
// The LLVM Compiler Infrastructure
|
|
|
|
//
|
|
|
|
// This file is distributed under the University of Illinois Open Source
|
|
|
|
// License. See LICENSE.TXT for details.
|
|
|
|
//
|
|
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
|
2012-12-04 00:50:05 +08:00
|
|
|
#include "llvm/MC/MCStreamer.h"
|
|
|
|
#include "llvm/ADT/SmallString.h"
|
|
|
|
#include "llvm/ADT/Twine.h"
|
2013-09-09 10:37:14 +08:00
|
|
|
#include "llvm/MC/MCAsmBackend.h"
|
2010-12-07 01:27:56 +08:00
|
|
|
#include "llvm/MC/MCAsmInfo.h"
|
2010-11-17 05:20:32 +08:00
|
|
|
#include "llvm/MC/MCContext.h"
|
2010-01-20 02:45:47 +08:00
|
|
|
#include "llvm/MC/MCExpr.h"
|
2015-05-16 06:19:42 +08:00
|
|
|
#include "llvm/MC/MCInst.h"
|
2015-06-19 04:43:22 +08:00
|
|
|
#include "llvm/MC/MCInstPrinter.h"
|
2014-01-24 10:42:26 +08:00
|
|
|
#include "llvm/MC/MCObjectFileInfo.h"
|
2010-10-01 00:52:03 +08:00
|
|
|
#include "llvm/MC/MCObjectWriter.h"
|
2015-03-11 08:51:37 +08:00
|
|
|
#include "llvm/MC/MCSection.h"
|
2016-05-03 07:22:18 +08:00
|
|
|
#include "llvm/MC/MCSectionCOFF.h"
|
2011-04-27 23:21:19 +08:00
|
|
|
#include "llvm/MC/MCSymbol.h"
|
2014-07-17 11:08:50 +08:00
|
|
|
#include "llvm/MC/MCWin64EH.h"
|
2016-05-03 07:22:18 +08:00
|
|
|
#include "llvm/Support/COFF.h"
|
2010-11-01 22:28:48 +08:00
|
|
|
#include "llvm/Support/ErrorHandling.h"
|
2012-08-09 07:56:06 +08:00
|
|
|
#include "llvm/Support/LEB128.h"
|
2012-12-04 00:50:05 +08:00
|
|
|
#include "llvm/Support/raw_ostream.h"
|
2010-04-04 05:48:59 +08:00
|
|
|
#include <cstdlib>
|
2009-06-24 09:03:06 +08:00
|
|
|
using namespace llvm;
|
|
|
|
|
2013-11-19 08:57:56 +08:00
|
|
|
// Pin the vtables to this file.
|
2013-10-08 21:08:17 +08:00
|
|
|
MCTargetStreamer::~MCTargetStreamer() {}
|
2014-01-26 14:06:37 +08:00
|
|
|
|
|
|
|
MCTargetStreamer::MCTargetStreamer(MCStreamer &S) : Streamer(S) {
|
|
|
|
S.setTargetStreamer(this);
|
|
|
|
}
|
|
|
|
|
2014-01-14 12:25:13 +08:00
|
|
|
void MCTargetStreamer::emitLabel(MCSymbol *Symbol) {}
|
2013-10-08 21:08:17 +08:00
|
|
|
|
2014-02-01 07:10:26 +08:00
|
|
|
void MCTargetStreamer::finish() {}
|
|
|
|
|
2014-03-20 17:44:49 +08:00
|
|
|
void MCTargetStreamer::emitAssignment(MCSymbol *Symbol, const MCExpr *Value) {}
|
|
|
|
|
2014-01-26 14:06:37 +08:00
|
|
|
MCStreamer::MCStreamer(MCContext &Ctx)
|
2014-07-14 03:03:36 +08:00
|
|
|
: Context(Ctx), CurrentWinFrameInfo(nullptr) {
|
2013-04-18 05:18:16 +08:00
|
|
|
SectionStack.push_back(std::pair<MCSectionSubPair, MCSectionSubPair>());
|
2009-06-24 09:03:06 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
MCStreamer::~MCStreamer() {
|
2014-07-14 03:03:36 +08:00
|
|
|
for (unsigned i = 0; i < getNumWinFrameInfos(); ++i)
|
|
|
|
delete WinFrameInfos[i];
|
2009-06-24 09:03:06 +08:00
|
|
|
}
|
2010-01-20 02:45:47 +08:00
|
|
|
|
2012-12-13 06:59:46 +08:00
|
|
|
void MCStreamer::reset() {
|
2014-09-17 17:25:36 +08:00
|
|
|
DwarfFrameInfos.clear();
|
2014-07-14 03:03:36 +08:00
|
|
|
for (unsigned i = 0; i < getNumWinFrameInfos(); ++i)
|
|
|
|
delete WinFrameInfos[i];
|
|
|
|
WinFrameInfos.clear();
|
|
|
|
CurrentWinFrameInfo = nullptr;
|
2014-09-18 01:50:34 +08:00
|
|
|
SymbolOrdering.clear();
|
2012-12-13 06:59:46 +08:00
|
|
|
SectionStack.clear();
|
2013-04-18 05:18:16 +08:00
|
|
|
SectionStack.push_back(std::pair<MCSectionSubPair, MCSectionSubPair>());
|
2012-12-13 06:59:46 +08:00
|
|
|
}
|
|
|
|
|
2010-01-23 03:17:48 +08:00
|
|
|
raw_ostream &MCStreamer::GetCommentOS() {
|
|
|
|
// By default, discard comments.
|
|
|
|
return nulls();
|
2013-09-09 10:37:14 +08:00
|
|
|
}
|
|
|
|
|
2014-01-17 00:28:37 +08:00
|
|
|
void MCStreamer::emitRawComment(const Twine &T, bool TabPrefix) {}
|
|
|
|
|
2013-09-10 03:48:37 +08:00
|
|
|
void MCStreamer::generateCompactUnwindEncodings(MCAsmBackend *MAB) {
|
2014-07-14 03:03:36 +08:00
|
|
|
for (auto &FI : DwarfFrameInfos)
|
|
|
|
FI.CompactUnwindEncoding =
|
|
|
|
(MAB ? MAB->generateCompactUnwindEncoding(FI.Instructions) : 0);
|
2010-01-23 03:17:48 +08:00
|
|
|
}
|
|
|
|
|
2010-01-20 06:03:38 +08:00
|
|
|
/// EmitIntValue - Special case of EmitValue that avoids the client having to
|
|
|
|
/// pass in a MCExpr for constant integers.
|
2013-07-02 23:49:13 +08:00
|
|
|
void MCStreamer::EmitIntValue(uint64_t Value, unsigned Size) {
|
2014-08-21 06:46:38 +08:00
|
|
|
assert(1 <= Size && Size <= 8 && "Invalid size");
|
2010-12-16 07:14:45 +08:00
|
|
|
assert((isUIntN(8 * Size, Value) || isIntN(8 * Size, Value)) &&
|
|
|
|
"Invalid size");
|
2010-12-03 10:54:21 +08:00
|
|
|
char buf[8];
|
2013-06-18 15:20:20 +08:00
|
|
|
const bool isLittleEndian = Context.getAsmInfo()->isLittleEndian();
|
2011-06-08 01:31:02 +08:00
|
|
|
for (unsigned i = 0; i != Size; ++i) {
|
|
|
|
unsigned index = isLittleEndian ? i : (Size - i - 1);
|
|
|
|
buf[i] = uint8_t(Value >> (index * 8));
|
|
|
|
}
|
2013-07-02 23:49:13 +08:00
|
|
|
EmitBytes(StringRef(buf, Size));
|
2010-01-20 06:03:38 +08:00
|
|
|
}
|
|
|
|
|
2010-11-03 01:22:24 +08:00
|
|
|
/// EmitULEB128Value - Special case of EmitULEB128Value that avoids the
|
|
|
|
/// client having to pass in a MCExpr for constant integers.
|
2013-07-02 23:49:13 +08:00
|
|
|
void MCStreamer::EmitULEB128IntValue(uint64_t Value, unsigned Padding) {
|
2012-02-24 05:15:21 +08:00
|
|
|
SmallString<128> Tmp;
|
2010-12-03 09:19:49 +08:00
|
|
|
raw_svector_ostream OSE(Tmp);
|
2012-08-09 07:56:06 +08:00
|
|
|
encodeULEB128(Value, OSE, Padding);
|
2013-07-02 23:49:13 +08:00
|
|
|
EmitBytes(OSE.str());
|
2010-10-01 00:52:03 +08:00
|
|
|
}
|
|
|
|
|
2010-11-03 01:22:24 +08:00
|
|
|
/// EmitSLEB128Value - Special case of EmitSLEB128Value that avoids the
|
|
|
|
/// client having to pass in a MCExpr for constant integers.
|
2013-07-02 23:49:13 +08:00
|
|
|
void MCStreamer::EmitSLEB128IntValue(int64_t Value) {
|
2012-02-24 05:15:21 +08:00
|
|
|
SmallString<128> Tmp;
|
2010-12-03 09:19:49 +08:00
|
|
|
raw_svector_ostream OSE(Tmp);
|
2012-08-09 07:56:06 +08:00
|
|
|
encodeSLEB128(Value, OSE);
|
2013-07-02 23:49:13 +08:00
|
|
|
EmitBytes(OSE.str());
|
2010-10-01 00:52:03 +08:00
|
|
|
}
|
|
|
|
|
2015-09-21 07:35:59 +08:00
|
|
|
void MCStreamer::EmitValue(const MCExpr *Value, unsigned Size, SMLoc Loc) {
|
2014-04-23 01:27:29 +08:00
|
|
|
EmitValueImpl(Value, Size, Loc);
|
2010-12-10 15:39:47 +08:00
|
|
|
}
|
|
|
|
|
2014-07-20 05:01:58 +08:00
|
|
|
void MCStreamer::EmitSymbolValue(const MCSymbol *Sym, unsigned Size,
|
|
|
|
bool IsSectionRelative) {
|
|
|
|
assert((!IsSectionRelative || Size == 4) &&
|
|
|
|
"SectionRelative value requires 4-bytes");
|
|
|
|
|
|
|
|
if (!IsSectionRelative)
|
2015-05-30 09:25:56 +08:00
|
|
|
EmitValueImpl(MCSymbolRefExpr::create(Sym, getContext()), Size);
|
2014-07-20 05:01:58 +08:00
|
|
|
else
|
|
|
|
EmitCOFFSecRel32(Sym);
|
2010-12-10 15:39:47 +08:00
|
|
|
}
|
|
|
|
|
2012-02-03 12:33:00 +08:00
|
|
|
void MCStreamer::EmitGPRel64Value(const MCExpr *Value) {
|
|
|
|
report_fatal_error("unsupported directive in streamer");
|
|
|
|
}
|
|
|
|
|
2010-11-28 23:09:24 +08:00
|
|
|
void MCStreamer::EmitGPRel32Value(const MCExpr *Value) {
|
|
|
|
report_fatal_error("unsupported directive in streamer");
|
|
|
|
}
|
|
|
|
|
2010-01-20 02:45:47 +08:00
|
|
|
/// EmitFill - Emit NumBytes bytes worth of the value specified by
|
|
|
|
/// FillValue. This implements directives such as '.space'.
|
2013-07-02 23:49:13 +08:00
|
|
|
void MCStreamer::EmitFill(uint64_t NumBytes, uint8_t FillValue) {
|
2015-05-30 09:25:56 +08:00
|
|
|
const MCExpr *E = MCConstantExpr::create(FillValue, getContext());
|
2010-01-20 02:45:47 +08:00
|
|
|
for (uint64_t i = 0, e = NumBytes; i != e; ++i)
|
2013-07-02 23:49:13 +08:00
|
|
|
EmitValue(E, 1);
|
2010-01-20 02:45:47 +08:00
|
|
|
}
|
2010-04-04 05:35:55 +08:00
|
|
|
|
2013-07-02 23:49:13 +08:00
|
|
|
/// The implementation in this class just redirects to EmitFill.
|
|
|
|
void MCStreamer::EmitZeros(uint64_t NumBytes) {
|
|
|
|
EmitFill(NumBytes, 0);
|
2013-06-27 22:35:03 +08:00
|
|
|
}
|
|
|
|
|
2014-03-17 09:52:11 +08:00
|
|
|
unsigned MCStreamer::EmitDwarfFileDirective(unsigned FileNo,
|
|
|
|
StringRef Directory,
|
|
|
|
StringRef Filename, unsigned CUID) {
|
2015-05-19 02:43:14 +08:00
|
|
|
return getContext().getDwarfFile(Directory, Filename, FileNo, CUID);
|
2010-11-17 05:20:32 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
void MCStreamer::EmitDwarfLocDirective(unsigned FileNo, unsigned Line,
|
|
|
|
unsigned Column, unsigned Flags,
|
|
|
|
unsigned Isa,
|
2011-04-19 04:26:49 +08:00
|
|
|
unsigned Discriminator,
|
|
|
|
StringRef FileName) {
|
2010-11-17 05:20:32 +08:00
|
|
|
getContext().setCurrentDwarfLoc(FileNo, Line, Column, Flags, Isa,
|
|
|
|
Discriminator);
|
|
|
|
}
|
|
|
|
|
2014-04-01 16:07:52 +08:00
|
|
|
MCSymbol *MCStreamer::getDwarfLineTableSymbol(unsigned CUID) {
|
|
|
|
MCDwarfLineTable &Table = getContext().getMCDwarfLineTable(CUID);
|
|
|
|
if (!Table.getLabel()) {
|
|
|
|
StringRef Prefix = Context.getAsmInfo()->getPrivateGlobalPrefix();
|
|
|
|
Table.setLabel(
|
2015-05-19 02:43:14 +08:00
|
|
|
Context.getOrCreateSymbol(Prefix + "line_table_start" + Twine(CUID)));
|
2014-04-01 16:07:52 +08:00
|
|
|
}
|
|
|
|
return Table.getLabel();
|
|
|
|
}
|
|
|
|
|
2014-07-14 03:03:36 +08:00
|
|
|
MCDwarfFrameInfo *MCStreamer::getCurrentDwarfFrameInfo() {
|
|
|
|
if (DwarfFrameInfos.empty())
|
2014-04-13 12:57:38 +08:00
|
|
|
return nullptr;
|
2014-07-14 03:03:36 +08:00
|
|
|
return &DwarfFrameInfos.back();
|
2010-12-10 15:39:47 +08:00
|
|
|
}
|
|
|
|
|
2016-02-25 06:25:18 +08:00
|
|
|
bool MCStreamer::hasUnfinishedDwarfFrameInfo() {
|
|
|
|
MCDwarfFrameInfo *CurFrame = getCurrentDwarfFrameInfo();
|
|
|
|
return CurFrame && !CurFrame->End;
|
|
|
|
}
|
|
|
|
|
2014-07-14 03:03:36 +08:00
|
|
|
void MCStreamer::EnsureValidDwarfFrame() {
|
|
|
|
MCDwarfFrameInfo *CurFrame = getCurrentDwarfFrameInfo();
|
2010-12-10 15:39:47 +08:00
|
|
|
if (!CurFrame || CurFrame->End)
|
|
|
|
report_fatal_error("No open frame");
|
|
|
|
}
|
|
|
|
|
2016-01-29 08:49:42 +08:00
|
|
|
unsigned MCStreamer::EmitCVFileDirective(unsigned FileNo, StringRef Filename) {
|
|
|
|
return getContext().getCVFile(Filename, FileNo);
|
|
|
|
}
|
|
|
|
|
|
|
|
void MCStreamer::EmitCVLocDirective(unsigned FunctionId, unsigned FileNo,
|
|
|
|
unsigned Line, unsigned Column,
|
|
|
|
bool PrologueEnd, bool IsStmt,
|
|
|
|
StringRef FileName) {
|
|
|
|
getContext().setCurrentCVLoc(FunctionId, FileNo, Line, Column, PrologueEnd,
|
|
|
|
IsStmt);
|
|
|
|
}
|
|
|
|
|
|
|
|
void MCStreamer::EmitCVLinetableDirective(unsigned FunctionId,
|
|
|
|
const MCSymbol *Begin,
|
|
|
|
const MCSymbol *End) {}
|
|
|
|
|
2016-01-30 03:24:12 +08:00
|
|
|
void MCStreamer::EmitCVInlineLinetableDirective(
|
|
|
|
unsigned PrimaryFunctionId, unsigned SourceFileId, unsigned SourceLineNum,
|
2016-02-03 03:22:34 +08:00
|
|
|
const MCSymbol *FnStartSym, const MCSymbol *FnEndSym,
|
|
|
|
ArrayRef<unsigned> SecondaryFunctionIds) {}
|
2016-01-30 03:24:12 +08:00
|
|
|
|
2016-02-05 09:55:49 +08:00
|
|
|
void MCStreamer::EmitCVDefRangeDirective(
|
|
|
|
ArrayRef<std::pair<const MCSymbol *, const MCSymbol *>> Ranges,
|
|
|
|
StringRef FixedSizePortion) {}
|
|
|
|
|
2011-04-28 20:50:37 +08:00
|
|
|
void MCStreamer::EmitEHSymAttributes(const MCSymbol *Symbol,
|
|
|
|
MCSymbol *EHSymbol) {
|
|
|
|
}
|
|
|
|
|
2014-10-16 00:12:52 +08:00
|
|
|
void MCStreamer::InitSections(bool NoExecStack) {
|
2014-01-24 10:42:26 +08:00
|
|
|
SwitchSection(getContext().getObjectFileInfo()->getTextSection());
|
|
|
|
}
|
|
|
|
|
2015-10-05 20:07:05 +08:00
|
|
|
void MCStreamer::AssignFragment(MCSymbol *Symbol, MCFragment *Fragment) {
|
|
|
|
assert(Fragment);
|
|
|
|
Symbol->setFragment(Fragment);
|
2013-09-20 07:21:01 +08:00
|
|
|
|
|
|
|
// As we emit symbols into a section, track the order so that they can
|
|
|
|
// be sorted upon later. Zero is reserved to mean 'unemitted'.
|
|
|
|
SymbolOrdering[Symbol] = 1 + SymbolOrdering.size();
|
|
|
|
}
|
|
|
|
|
2011-04-27 23:21:19 +08:00
|
|
|
void MCStreamer::EmitLabel(MCSymbol *Symbol) {
|
|
|
|
assert(!Symbol->isVariable() && "Cannot emit a variable symbol!");
|
2013-04-18 05:18:16 +08:00
|
|
|
assert(getCurrentSection().first && "Cannot emit before setting section!");
|
2015-10-05 20:07:05 +08:00
|
|
|
assert(!Symbol->getFragment() && "Unexpected fragment on symbol data!");
|
|
|
|
Symbol->setFragment(&getCurrentSectionOnly()->getDummyFragment());
|
2014-01-14 12:25:13 +08:00
|
|
|
|
|
|
|
MCTargetStreamer *TS = getTargetStreamer();
|
|
|
|
if (TS)
|
|
|
|
TS->emitLabel(Symbol);
|
2011-04-27 23:21:19 +08:00
|
|
|
}
|
|
|
|
|
2011-05-10 09:10:18 +08:00
|
|
|
void MCStreamer::EmitCFISections(bool EH, bool Debug) {
|
2011-05-10 21:39:48 +08:00
|
|
|
assert(EH || Debug);
|
2011-05-10 09:10:18 +08:00
|
|
|
}
|
|
|
|
|
2014-11-03 20:19:03 +08:00
|
|
|
void MCStreamer::EmitCFIStartProc(bool IsSimple) {
|
2016-02-25 06:25:18 +08:00
|
|
|
if (hasUnfinishedDwarfFrameInfo())
|
2010-12-10 15:39:47 +08:00
|
|
|
report_fatal_error("Starting a frame before finishing the previous one!");
|
2011-08-03 04:24:22 +08:00
|
|
|
|
2011-08-25 06:31:37 +08:00
|
|
|
MCDwarfFrameInfo Frame;
|
2014-01-28 01:20:25 +08:00
|
|
|
Frame.IsSimple = IsSimple;
|
2014-11-03 20:19:03 +08:00
|
|
|
EmitCFIStartProcImpl(Frame);
|
2012-01-08 06:42:19 +08:00
|
|
|
|
2014-10-07 19:03:09 +08:00
|
|
|
const MCAsmInfo* MAI = Context.getAsmInfo();
|
|
|
|
if (MAI) {
|
|
|
|
for (const MCCFIInstruction& Inst : MAI->getInitialFrameState()) {
|
|
|
|
if (Inst.getOperation() == MCCFIInstruction::OpDefCfa ||
|
|
|
|
Inst.getOperation() == MCCFIInstruction::OpDefCfaRegister) {
|
|
|
|
Frame.CurrentCfaRegister = Inst.getRegister();
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2014-07-14 03:03:36 +08:00
|
|
|
DwarfFrameInfos.push_back(Frame);
|
2012-01-08 06:42:19 +08:00
|
|
|
}
|
2011-08-03 04:24:22 +08:00
|
|
|
|
2014-11-03 20:19:03 +08:00
|
|
|
void MCStreamer::EmitCFIStartProcImpl(MCDwarfFrameInfo &Frame) {
|
|
|
|
}
|
2012-01-08 06:42:19 +08:00
|
|
|
|
2011-04-13 07:59:07 +08:00
|
|
|
void MCStreamer::EmitCFIEndProc() {
|
2014-07-14 03:03:36 +08:00
|
|
|
EnsureValidDwarfFrame();
|
|
|
|
MCDwarfFrameInfo *CurFrame = getCurrentDwarfFrameInfo();
|
2012-01-09 08:17:29 +08:00
|
|
|
EmitCFIEndProcImpl(*CurFrame);
|
|
|
|
}
|
|
|
|
|
|
|
|
void MCStreamer::EmitCFIEndProcImpl(MCDwarfFrameInfo &Frame) {
|
2014-06-25 08:13:59 +08:00
|
|
|
// Put a dummy non-null value in Frame.End to mark that this frame has been
|
|
|
|
// closed.
|
|
|
|
Frame.End = (MCSymbol *) 1;
|
2010-11-22 22:27:24 +08:00
|
|
|
}
|
|
|
|
|
2012-11-24 10:18:49 +08:00
|
|
|
MCSymbol *MCStreamer::EmitCFICommon() {
|
2014-07-14 03:03:36 +08:00
|
|
|
EnsureValidDwarfFrame();
|
2015-05-19 02:43:14 +08:00
|
|
|
MCSymbol *Label = getContext().createTempSymbol();
|
2010-12-29 09:42:56 +08:00
|
|
|
EmitLabel(Label);
|
2012-11-24 10:18:49 +08:00
|
|
|
return Label;
|
|
|
|
}
|
|
|
|
|
|
|
|
void MCStreamer::EmitCFIDefCfa(int64_t Register, int64_t Offset) {
|
|
|
|
MCSymbol *Label = EmitCFICommon();
|
2012-11-24 10:01:08 +08:00
|
|
|
MCCFIInstruction Instruction =
|
|
|
|
MCCFIInstruction::createDefCfa(Label, Register, Offset);
|
2014-07-14 03:03:36 +08:00
|
|
|
MCDwarfFrameInfo *CurFrame = getCurrentDwarfFrameInfo();
|
2010-12-29 09:42:56 +08:00
|
|
|
CurFrame->Instructions.push_back(Instruction);
|
2014-10-07 19:03:09 +08:00
|
|
|
CurFrame->CurrentCfaRegister = static_cast<unsigned>(Register);
|
2010-12-29 09:42:56 +08:00
|
|
|
}
|
|
|
|
|
2011-04-13 07:59:07 +08:00
|
|
|
void MCStreamer::EmitCFIDefCfaOffset(int64_t Offset) {
|
2012-11-24 10:18:49 +08:00
|
|
|
MCSymbol *Label = EmitCFICommon();
|
2012-11-24 10:01:08 +08:00
|
|
|
MCCFIInstruction Instruction =
|
|
|
|
MCCFIInstruction::createDefCfaOffset(Label, Offset);
|
2014-07-14 03:03:36 +08:00
|
|
|
MCDwarfFrameInfo *CurFrame = getCurrentDwarfFrameInfo();
|
2010-12-29 02:36:23 +08:00
|
|
|
CurFrame->Instructions.push_back(Instruction);
|
2010-11-22 22:27:24 +08:00
|
|
|
}
|
|
|
|
|
2011-04-13 02:53:30 +08:00
|
|
|
void MCStreamer::EmitCFIAdjustCfaOffset(int64_t Adjustment) {
|
2012-11-24 10:18:49 +08:00
|
|
|
MCSymbol *Label = EmitCFICommon();
|
2012-11-24 10:01:08 +08:00
|
|
|
MCCFIInstruction Instruction =
|
|
|
|
MCCFIInstruction::createAdjustCfaOffset(Label, Adjustment);
|
2014-07-14 03:03:36 +08:00
|
|
|
MCDwarfFrameInfo *CurFrame = getCurrentDwarfFrameInfo();
|
2011-04-13 02:53:30 +08:00
|
|
|
CurFrame->Instructions.push_back(Instruction);
|
|
|
|
}
|
|
|
|
|
2011-04-13 07:59:07 +08:00
|
|
|
void MCStreamer::EmitCFIDefCfaRegister(int64_t Register) {
|
2012-11-24 10:18:49 +08:00
|
|
|
MCSymbol *Label = EmitCFICommon();
|
2012-11-24 10:01:08 +08:00
|
|
|
MCCFIInstruction Instruction =
|
|
|
|
MCCFIInstruction::createDefCfaRegister(Label, Register);
|
2014-07-14 03:03:36 +08:00
|
|
|
MCDwarfFrameInfo *CurFrame = getCurrentDwarfFrameInfo();
|
2010-12-29 08:26:06 +08:00
|
|
|
CurFrame->Instructions.push_back(Instruction);
|
2014-10-07 19:03:09 +08:00
|
|
|
CurFrame->CurrentCfaRegister = static_cast<unsigned>(Register);
|
2010-11-22 22:27:24 +08:00
|
|
|
}
|
|
|
|
|
2011-04-13 07:59:07 +08:00
|
|
|
void MCStreamer::EmitCFIOffset(int64_t Register, int64_t Offset) {
|
2012-11-24 10:18:49 +08:00
|
|
|
MCSymbol *Label = EmitCFICommon();
|
2012-11-24 10:01:08 +08:00
|
|
|
MCCFIInstruction Instruction =
|
2012-11-24 11:10:54 +08:00
|
|
|
MCCFIInstruction::createOffset(Label, Register, Offset);
|
2014-07-14 03:03:36 +08:00
|
|
|
MCDwarfFrameInfo *CurFrame = getCurrentDwarfFrameInfo();
|
2010-12-29 08:09:59 +08:00
|
|
|
CurFrame->Instructions.push_back(Instruction);
|
2010-11-22 22:27:24 +08:00
|
|
|
}
|
|
|
|
|
2011-04-13 00:12:03 +08:00
|
|
|
void MCStreamer::EmitCFIRelOffset(int64_t Register, int64_t Offset) {
|
2012-11-24 10:18:49 +08:00
|
|
|
MCSymbol *Label = EmitCFICommon();
|
2012-11-24 10:01:08 +08:00
|
|
|
MCCFIInstruction Instruction =
|
|
|
|
MCCFIInstruction::createRelOffset(Label, Register, Offset);
|
2014-07-14 03:03:36 +08:00
|
|
|
MCDwarfFrameInfo *CurFrame = getCurrentDwarfFrameInfo();
|
2011-04-13 00:12:03 +08:00
|
|
|
CurFrame->Instructions.push_back(Instruction);
|
|
|
|
}
|
|
|
|
|
2011-04-13 07:59:07 +08:00
|
|
|
void MCStreamer::EmitCFIPersonality(const MCSymbol *Sym,
|
2010-12-27 08:36:05 +08:00
|
|
|
unsigned Encoding) {
|
2014-07-14 03:03:36 +08:00
|
|
|
EnsureValidDwarfFrame();
|
|
|
|
MCDwarfFrameInfo *CurFrame = getCurrentDwarfFrameInfo();
|
2010-12-10 15:39:47 +08:00
|
|
|
CurFrame->Personality = Sym;
|
2010-12-27 08:36:05 +08:00
|
|
|
CurFrame->PersonalityEncoding = Encoding;
|
2010-11-22 22:27:24 +08:00
|
|
|
}
|
|
|
|
|
2011-04-13 07:59:07 +08:00
|
|
|
void MCStreamer::EmitCFILsda(const MCSymbol *Sym, unsigned Encoding) {
|
2014-07-14 03:03:36 +08:00
|
|
|
EnsureValidDwarfFrame();
|
|
|
|
MCDwarfFrameInfo *CurFrame = getCurrentDwarfFrameInfo();
|
2010-12-10 15:39:47 +08:00
|
|
|
CurFrame->Lsda = Sym;
|
2010-12-27 23:56:22 +08:00
|
|
|
CurFrame->LsdaEncoding = Encoding;
|
2010-11-22 22:27:24 +08:00
|
|
|
}
|
|
|
|
|
2011-04-13 07:59:07 +08:00
|
|
|
void MCStreamer::EmitCFIRememberState() {
|
2012-11-24 10:18:49 +08:00
|
|
|
MCSymbol *Label = EmitCFICommon();
|
2012-11-24 10:01:08 +08:00
|
|
|
MCCFIInstruction Instruction = MCCFIInstruction::createRememberState(Label);
|
2014-07-14 03:03:36 +08:00
|
|
|
MCDwarfFrameInfo *CurFrame = getCurrentDwarfFrameInfo();
|
2010-12-29 02:36:23 +08:00
|
|
|
CurFrame->Instructions.push_back(Instruction);
|
|
|
|
}
|
|
|
|
|
2011-04-13 07:59:07 +08:00
|
|
|
void MCStreamer::EmitCFIRestoreState() {
|
2010-12-29 02:36:23 +08:00
|
|
|
// FIXME: Error if there is no matching cfi_remember_state.
|
2012-11-24 10:18:49 +08:00
|
|
|
MCSymbol *Label = EmitCFICommon();
|
2012-11-24 10:01:08 +08:00
|
|
|
MCCFIInstruction Instruction = MCCFIInstruction::createRestoreState(Label);
|
2014-07-14 03:03:36 +08:00
|
|
|
MCDwarfFrameInfo *CurFrame = getCurrentDwarfFrameInfo();
|
2010-12-29 02:36:23 +08:00
|
|
|
CurFrame->Instructions.push_back(Instruction);
|
|
|
|
}
|
|
|
|
|
2011-04-12 23:31:05 +08:00
|
|
|
void MCStreamer::EmitCFISameValue(int64_t Register) {
|
2012-11-24 10:18:49 +08:00
|
|
|
MCSymbol *Label = EmitCFICommon();
|
2012-11-24 10:01:08 +08:00
|
|
|
MCCFIInstruction Instruction =
|
|
|
|
MCCFIInstruction::createSameValue(Label, Register);
|
2014-07-14 03:03:36 +08:00
|
|
|
MCDwarfFrameInfo *CurFrame = getCurrentDwarfFrameInfo();
|
2011-04-12 23:31:05 +08:00
|
|
|
CurFrame->Instructions.push_back(Instruction);
|
|
|
|
}
|
|
|
|
|
2011-12-30 05:43:03 +08:00
|
|
|
void MCStreamer::EmitCFIRestore(int64_t Register) {
|
2012-11-24 10:18:49 +08:00
|
|
|
MCSymbol *Label = EmitCFICommon();
|
2012-11-24 10:01:08 +08:00
|
|
|
MCCFIInstruction Instruction =
|
|
|
|
MCCFIInstruction::createRestore(Label, Register);
|
2014-07-14 03:03:36 +08:00
|
|
|
MCDwarfFrameInfo *CurFrame = getCurrentDwarfFrameInfo();
|
2011-12-30 05:43:03 +08:00
|
|
|
CurFrame->Instructions.push_back(Instruction);
|
|
|
|
}
|
|
|
|
|
2011-12-30 04:24:47 +08:00
|
|
|
void MCStreamer::EmitCFIEscape(StringRef Values) {
|
2012-11-24 10:18:49 +08:00
|
|
|
MCSymbol *Label = EmitCFICommon();
|
2012-11-24 10:01:08 +08:00
|
|
|
MCCFIInstruction Instruction = MCCFIInstruction::createEscape(Label, Values);
|
2014-07-14 03:03:36 +08:00
|
|
|
MCDwarfFrameInfo *CurFrame = getCurrentDwarfFrameInfo();
|
2011-12-30 04:24:47 +08:00
|
|
|
CurFrame->Instructions.push_back(Instruction);
|
2015-10-07 15:01:31 +08:00
|
|
|
}
|
|
|
|
|
|
|
|
void MCStreamer::EmitCFIGnuArgsSize(int64_t Size) {
|
|
|
|
MCSymbol *Label = EmitCFICommon();
|
|
|
|
MCCFIInstruction Instruction =
|
|
|
|
MCCFIInstruction::createGnuArgsSize(Label, Size);
|
|
|
|
MCDwarfFrameInfo *CurFrame = getCurrentDwarfFrameInfo();
|
|
|
|
CurFrame->Instructions.push_back(Instruction);
|
2011-12-30 04:24:47 +08:00
|
|
|
}
|
|
|
|
|
2012-01-24 05:51:52 +08:00
|
|
|
void MCStreamer::EmitCFISignalFrame() {
|
2014-07-14 03:03:36 +08:00
|
|
|
EnsureValidDwarfFrame();
|
|
|
|
MCDwarfFrameInfo *CurFrame = getCurrentDwarfFrameInfo();
|
2012-01-24 05:51:52 +08:00
|
|
|
CurFrame->IsSignalFrame = true;
|
|
|
|
}
|
|
|
|
|
2012-11-24 00:59:41 +08:00
|
|
|
void MCStreamer::EmitCFIUndefined(int64_t Register) {
|
2012-11-24 10:18:49 +08:00
|
|
|
MCSymbol *Label = EmitCFICommon();
|
2012-11-24 10:01:08 +08:00
|
|
|
MCCFIInstruction Instruction =
|
|
|
|
MCCFIInstruction::createUndefined(Label, Register);
|
2014-07-14 03:03:36 +08:00
|
|
|
MCDwarfFrameInfo *CurFrame = getCurrentDwarfFrameInfo();
|
2012-11-24 00:59:41 +08:00
|
|
|
CurFrame->Instructions.push_back(Instruction);
|
|
|
|
}
|
|
|
|
|
2012-11-25 23:14:49 +08:00
|
|
|
void MCStreamer::EmitCFIRegister(int64_t Register1, int64_t Register2) {
|
|
|
|
MCSymbol *Label = EmitCFICommon();
|
|
|
|
MCCFIInstruction Instruction =
|
|
|
|
MCCFIInstruction::createRegister(Label, Register1, Register2);
|
2014-07-14 03:03:36 +08:00
|
|
|
MCDwarfFrameInfo *CurFrame = getCurrentDwarfFrameInfo();
|
2012-11-25 23:14:49 +08:00
|
|
|
CurFrame->Instructions.push_back(Instruction);
|
|
|
|
}
|
|
|
|
|
2013-09-26 22:49:40 +08:00
|
|
|
void MCStreamer::EmitCFIWindowSave() {
|
|
|
|
MCSymbol *Label = EmitCFICommon();
|
|
|
|
MCCFIInstruction Instruction =
|
|
|
|
MCCFIInstruction::createWindowSave(Label);
|
2014-07-14 03:03:36 +08:00
|
|
|
MCDwarfFrameInfo *CurFrame = getCurrentDwarfFrameInfo();
|
2013-09-26 22:49:40 +08:00
|
|
|
CurFrame->Instructions.push_back(Instruction);
|
|
|
|
}
|
|
|
|
|
2014-07-14 03:03:36 +08:00
|
|
|
void MCStreamer::EnsureValidWinFrameInfo() {
|
2015-05-30 01:00:57 +08:00
|
|
|
const MCAsmInfo *MAI = Context.getAsmInfo();
|
|
|
|
if (!MAI->usesWindowsCFI())
|
|
|
|
report_fatal_error(".seh_* directives are not supported on this target");
|
2014-07-14 03:03:36 +08:00
|
|
|
if (!CurrentWinFrameInfo || CurrentWinFrameInfo->End)
|
2011-05-19 10:49:00 +08:00
|
|
|
report_fatal_error("No open Win64 EH frame function!");
|
|
|
|
}
|
|
|
|
|
2014-06-29 09:52:01 +08:00
|
|
|
void MCStreamer::EmitWinCFIStartProc(const MCSymbol *Symbol) {
|
2015-05-30 01:00:57 +08:00
|
|
|
const MCAsmInfo *MAI = Context.getAsmInfo();
|
|
|
|
if (!MAI->usesWindowsCFI())
|
|
|
|
report_fatal_error(".seh_* directives are not supported on this target");
|
2014-07-14 03:03:36 +08:00
|
|
|
if (CurrentWinFrameInfo && !CurrentWinFrameInfo->End)
|
2011-05-19 10:49:00 +08:00
|
|
|
report_fatal_error("Starting a function before ending the previous one!");
|
2014-08-04 02:51:17 +08:00
|
|
|
|
2015-05-19 02:43:14 +08:00
|
|
|
MCSymbol *StartProc = getContext().createTempSymbol();
|
2014-08-04 02:51:17 +08:00
|
|
|
EmitLabel(StartProc);
|
|
|
|
|
|
|
|
WinFrameInfos.push_back(new WinEH::FrameInfo(Symbol, StartProc));
|
2014-07-14 03:03:36 +08:00
|
|
|
CurrentWinFrameInfo = WinFrameInfos.back();
|
2016-05-03 07:22:18 +08:00
|
|
|
CurrentWinFrameInfo->TextSection = getCurrentSectionOnly();
|
2011-05-19 10:49:00 +08:00
|
|
|
}
|
|
|
|
|
2014-06-29 09:52:01 +08:00
|
|
|
void MCStreamer::EmitWinCFIEndProc() {
|
2014-07-14 03:03:36 +08:00
|
|
|
EnsureValidWinFrameInfo();
|
|
|
|
if (CurrentWinFrameInfo->ChainedParent)
|
2011-05-19 10:49:00 +08:00
|
|
|
report_fatal_error("Not all chained regions terminated!");
|
2014-08-04 02:51:17 +08:00
|
|
|
|
2015-05-19 02:43:14 +08:00
|
|
|
MCSymbol *Label = getContext().createTempSymbol();
|
2014-08-04 02:51:17 +08:00
|
|
|
EmitLabel(Label);
|
|
|
|
CurrentWinFrameInfo->End = Label;
|
2011-05-16 01:20:01 +08:00
|
|
|
}
|
|
|
|
|
2014-06-29 09:52:01 +08:00
|
|
|
void MCStreamer::EmitWinCFIStartChained() {
|
2014-07-14 03:03:36 +08:00
|
|
|
EnsureValidWinFrameInfo();
|
2014-08-04 02:51:17 +08:00
|
|
|
|
2015-05-19 02:43:14 +08:00
|
|
|
MCSymbol *StartProc = getContext().createTempSymbol();
|
2014-08-04 02:51:17 +08:00
|
|
|
EmitLabel(StartProc);
|
|
|
|
|
|
|
|
WinFrameInfos.push_back(new WinEH::FrameInfo(CurrentWinFrameInfo->Function,
|
|
|
|
StartProc, CurrentWinFrameInfo));
|
2014-07-14 03:03:36 +08:00
|
|
|
CurrentWinFrameInfo = WinFrameInfos.back();
|
2016-05-03 07:22:18 +08:00
|
|
|
CurrentWinFrameInfo->TextSection = getCurrentSectionOnly();
|
2011-05-19 04:54:10 +08:00
|
|
|
}
|
|
|
|
|
2014-06-29 09:52:01 +08:00
|
|
|
void MCStreamer::EmitWinCFIEndChained() {
|
2014-07-14 03:03:36 +08:00
|
|
|
EnsureValidWinFrameInfo();
|
|
|
|
if (!CurrentWinFrameInfo->ChainedParent)
|
2011-05-19 12:04:13 +08:00
|
|
|
report_fatal_error("End of a chained region outside a chained region!");
|
2014-08-04 02:51:17 +08:00
|
|
|
|
2015-05-19 02:43:14 +08:00
|
|
|
MCSymbol *Label = getContext().createTempSymbol();
|
2014-08-04 02:51:17 +08:00
|
|
|
EmitLabel(Label);
|
|
|
|
|
|
|
|
CurrentWinFrameInfo->End = Label;
|
|
|
|
CurrentWinFrameInfo =
|
|
|
|
const_cast<WinEH::FrameInfo *>(CurrentWinFrameInfo->ChainedParent);
|
2011-05-19 04:54:10 +08:00
|
|
|
}
|
|
|
|
|
2014-06-29 09:52:01 +08:00
|
|
|
void MCStreamer::EmitWinEHHandler(const MCSymbol *Sym, bool Unwind,
|
|
|
|
bool Except) {
|
2014-07-14 03:03:36 +08:00
|
|
|
EnsureValidWinFrameInfo();
|
|
|
|
if (CurrentWinFrameInfo->ChainedParent)
|
2011-05-22 01:36:25 +08:00
|
|
|
report_fatal_error("Chained unwind areas can't have handlers!");
|
2014-07-14 03:03:36 +08:00
|
|
|
CurrentWinFrameInfo->ExceptionHandler = Sym;
|
2011-05-21 23:57:49 +08:00
|
|
|
if (!Except && !Unwind)
|
2011-05-20 01:46:39 +08:00
|
|
|
report_fatal_error("Don't know what kind of handler this is!");
|
2011-05-21 23:57:49 +08:00
|
|
|
if (Unwind)
|
2014-07-14 03:03:36 +08:00
|
|
|
CurrentWinFrameInfo->HandlesUnwind = true;
|
2011-05-21 23:57:49 +08:00
|
|
|
if (Except)
|
2014-07-14 03:03:36 +08:00
|
|
|
CurrentWinFrameInfo->HandlesExceptions = true;
|
2011-05-20 01:46:39 +08:00
|
|
|
}
|
|
|
|
|
2014-06-29 09:52:01 +08:00
|
|
|
void MCStreamer::EmitWinEHHandlerData() {
|
2014-07-14 03:03:36 +08:00
|
|
|
EnsureValidWinFrameInfo();
|
|
|
|
if (CurrentWinFrameInfo->ChainedParent)
|
2011-05-22 01:36:25 +08:00
|
|
|
report_fatal_error("Chained unwind areas can't have handlers!");
|
2011-05-19 04:54:10 +08:00
|
|
|
}
|
|
|
|
|
2016-05-03 07:22:18 +08:00
|
|
|
static MCSection *getWinCFISection(MCContext &Context, unsigned *NextWinCFIID,
|
|
|
|
MCSection *MainCFISec,
|
|
|
|
const MCSection *TextSec) {
|
|
|
|
// If this is the main .text section, use the main unwind info section.
|
|
|
|
if (TextSec == Context.getObjectFileInfo()->getTextSection())
|
|
|
|
return MainCFISec;
|
|
|
|
|
|
|
|
const auto *TextSecCOFF = cast<MCSectionCOFF>(TextSec);
|
|
|
|
unsigned UniqueID = TextSecCOFF->getOrAssignWinCFISectionID(NextWinCFIID);
|
|
|
|
|
|
|
|
// If this section is COMDAT, this unwind section should be COMDAT associative
|
|
|
|
// with its group.
|
|
|
|
const MCSymbol *KeySym = nullptr;
|
|
|
|
if (TextSecCOFF->getCharacteristics() & COFF::IMAGE_SCN_LNK_COMDAT)
|
|
|
|
KeySym = TextSecCOFF->getCOMDATSymbol();
|
|
|
|
|
|
|
|
return Context.getAssociativeCOFFSection(cast<MCSectionCOFF>(MainCFISec),
|
|
|
|
KeySym, UniqueID);
|
|
|
|
}
|
|
|
|
|
|
|
|
MCSection *MCStreamer::getAssociatedPDataSection(const MCSection *TextSec) {
|
|
|
|
return getWinCFISection(getContext(), &NextWinCFIID,
|
|
|
|
getContext().getObjectFileInfo()->getPDataSection(),
|
|
|
|
TextSec);
|
|
|
|
}
|
|
|
|
|
|
|
|
MCSection *MCStreamer::getAssociatedXDataSection(const MCSection *TextSec) {
|
|
|
|
return getWinCFISection(getContext(), &NextWinCFIID,
|
|
|
|
getContext().getObjectFileInfo()->getXDataSection(),
|
|
|
|
TextSec);
|
|
|
|
}
|
|
|
|
|
2015-07-22 18:49:44 +08:00
|
|
|
void MCStreamer::EmitSyntaxDirective() {}
|
|
|
|
|
2014-06-29 09:52:01 +08:00
|
|
|
void MCStreamer::EmitWinCFIPushReg(unsigned Register) {
|
2014-07-14 03:03:36 +08:00
|
|
|
EnsureValidWinFrameInfo();
|
2014-07-17 11:08:50 +08:00
|
|
|
|
2015-05-19 02:43:14 +08:00
|
|
|
MCSymbol *Label = getContext().createTempSymbol();
|
2011-05-27 11:25:01 +08:00
|
|
|
EmitLabel(Label);
|
2014-07-17 11:08:50 +08:00
|
|
|
|
|
|
|
WinEH::Instruction Inst = Win64EH::Instruction::PushNonVol(Label, Register);
|
2014-07-14 03:03:36 +08:00
|
|
|
CurrentWinFrameInfo->Instructions.push_back(Inst);
|
2011-05-19 04:54:10 +08:00
|
|
|
}
|
|
|
|
|
2014-06-29 09:52:01 +08:00
|
|
|
void MCStreamer::EmitWinCFISetFrame(unsigned Register, unsigned Offset) {
|
2014-07-14 03:03:36 +08:00
|
|
|
EnsureValidWinFrameInfo();
|
|
|
|
if (CurrentWinFrameInfo->LastFrameInst >= 0)
|
2011-05-27 09:42:17 +08:00
|
|
|
report_fatal_error("Frame register and offset already specified!");
|
2011-05-22 08:56:20 +08:00
|
|
|
if (Offset & 0x0F)
|
|
|
|
report_fatal_error("Misaligned frame pointer offset!");
|
2014-06-25 20:41:52 +08:00
|
|
|
if (Offset > 240)
|
|
|
|
report_fatal_error("Frame offset must be less than or equal to 240!");
|
2014-07-17 11:08:50 +08:00
|
|
|
|
2015-05-19 02:43:14 +08:00
|
|
|
MCSymbol *Label = getContext().createTempSymbol();
|
2013-08-27 12:16:16 +08:00
|
|
|
EmitLabel(Label);
|
2014-07-17 11:08:50 +08:00
|
|
|
|
|
|
|
WinEH::Instruction Inst =
|
|
|
|
Win64EH::Instruction::SetFPReg(Label, Register, Offset);
|
2014-07-14 03:03:36 +08:00
|
|
|
CurrentWinFrameInfo->LastFrameInst = CurrentWinFrameInfo->Instructions.size();
|
|
|
|
CurrentWinFrameInfo->Instructions.push_back(Inst);
|
2011-05-16 01:20:01 +08:00
|
|
|
}
|
|
|
|
|
2014-06-29 09:52:01 +08:00
|
|
|
void MCStreamer::EmitWinCFIAllocStack(unsigned Size) {
|
2014-07-14 03:03:36 +08:00
|
|
|
EnsureValidWinFrameInfo();
|
2014-07-01 08:42:47 +08:00
|
|
|
if (Size == 0)
|
|
|
|
report_fatal_error("Allocation size must be non-zero!");
|
2011-05-22 08:56:20 +08:00
|
|
|
if (Size & 7)
|
|
|
|
report_fatal_error("Misaligned stack allocation!");
|
2014-07-17 11:08:50 +08:00
|
|
|
|
2015-05-19 02:43:14 +08:00
|
|
|
MCSymbol *Label = getContext().createTempSymbol();
|
2011-05-27 11:25:01 +08:00
|
|
|
EmitLabel(Label);
|
2014-07-17 11:08:50 +08:00
|
|
|
|
|
|
|
WinEH::Instruction Inst = Win64EH::Instruction::Alloc(Label, Size);
|
2014-07-14 03:03:36 +08:00
|
|
|
CurrentWinFrameInfo->Instructions.push_back(Inst);
|
2011-05-16 01:20:01 +08:00
|
|
|
}
|
|
|
|
|
2014-06-29 09:52:01 +08:00
|
|
|
void MCStreamer::EmitWinCFISaveReg(unsigned Register, unsigned Offset) {
|
2014-07-14 03:03:36 +08:00
|
|
|
EnsureValidWinFrameInfo();
|
2011-05-22 08:56:20 +08:00
|
|
|
if (Offset & 7)
|
|
|
|
report_fatal_error("Misaligned saved register offset!");
|
2014-07-17 11:08:50 +08:00
|
|
|
|
2015-05-19 02:43:14 +08:00
|
|
|
MCSymbol *Label = getContext().createTempSymbol();
|
2011-05-27 11:25:01 +08:00
|
|
|
EmitLabel(Label);
|
2014-07-17 11:08:50 +08:00
|
|
|
|
|
|
|
WinEH::Instruction Inst =
|
|
|
|
Win64EH::Instruction::SaveNonVol(Label, Register, Offset);
|
2014-07-14 03:03:36 +08:00
|
|
|
CurrentWinFrameInfo->Instructions.push_back(Inst);
|
2011-05-16 01:20:01 +08:00
|
|
|
}
|
|
|
|
|
2014-06-29 09:52:01 +08:00
|
|
|
void MCStreamer::EmitWinCFISaveXMM(unsigned Register, unsigned Offset) {
|
2014-07-14 03:03:36 +08:00
|
|
|
EnsureValidWinFrameInfo();
|
2011-05-22 08:56:20 +08:00
|
|
|
if (Offset & 0x0F)
|
|
|
|
report_fatal_error("Misaligned saved vector register offset!");
|
2014-07-17 11:08:50 +08:00
|
|
|
|
2015-05-19 02:43:14 +08:00
|
|
|
MCSymbol *Label = getContext().createTempSymbol();
|
2011-05-27 11:25:01 +08:00
|
|
|
EmitLabel(Label);
|
2014-07-17 11:08:50 +08:00
|
|
|
|
|
|
|
WinEH::Instruction Inst =
|
|
|
|
Win64EH::Instruction::SaveXMM(Label, Register, Offset);
|
2014-07-14 03:03:36 +08:00
|
|
|
CurrentWinFrameInfo->Instructions.push_back(Inst);
|
2011-05-16 01:20:01 +08:00
|
|
|
}
|
|
|
|
|
2014-06-29 09:52:01 +08:00
|
|
|
void MCStreamer::EmitWinCFIPushFrame(bool Code) {
|
2014-07-14 03:03:36 +08:00
|
|
|
EnsureValidWinFrameInfo();
|
|
|
|
if (CurrentWinFrameInfo->Instructions.size() > 0)
|
2011-05-27 09:42:17 +08:00
|
|
|
report_fatal_error("If present, PushMachFrame must be the first UOP");
|
2014-07-17 11:08:50 +08:00
|
|
|
|
2015-05-19 02:43:14 +08:00
|
|
|
MCSymbol *Label = getContext().createTempSymbol();
|
2011-05-27 11:25:01 +08:00
|
|
|
EmitLabel(Label);
|
2014-07-17 11:08:50 +08:00
|
|
|
|
|
|
|
WinEH::Instruction Inst = Win64EH::Instruction::PushMachFrame(Label, Code);
|
2014-07-14 03:03:36 +08:00
|
|
|
CurrentWinFrameInfo->Instructions.push_back(Inst);
|
2011-05-16 01:20:01 +08:00
|
|
|
}
|
|
|
|
|
2014-06-29 09:52:01 +08:00
|
|
|
void MCStreamer::EmitWinCFIEndProlog() {
|
2014-07-14 03:03:36 +08:00
|
|
|
EnsureValidWinFrameInfo();
|
2014-08-04 02:51:17 +08:00
|
|
|
|
2015-05-19 02:43:14 +08:00
|
|
|
MCSymbol *Label = getContext().createTempSymbol();
|
2014-08-04 02:51:17 +08:00
|
|
|
EmitLabel(Label);
|
|
|
|
|
|
|
|
CurrentWinFrameInfo->PrologEnd = Label;
|
2011-05-17 05:13:58 +08:00
|
|
|
}
|
|
|
|
|
2015-05-30 12:56:02 +08:00
|
|
|
void MCStreamer::EmitCOFFSafeSEH(MCSymbol const *Symbol) {
|
|
|
|
}
|
|
|
|
|
2013-12-21 02:15:00 +08:00
|
|
|
void MCStreamer::EmitCOFFSectionIndex(MCSymbol const *Symbol) {
|
|
|
|
}
|
|
|
|
|
2011-12-17 09:14:52 +08:00
|
|
|
void MCStreamer::EmitCOFFSecRel32(MCSymbol const *Symbol) {
|
|
|
|
}
|
|
|
|
|
2010-05-21 03:45:09 +08:00
|
|
|
/// EmitRawText - If this file is backed by an assembly streamer, this dumps
|
2010-04-04 05:35:55 +08:00
|
|
|
/// the specified string in the output .s file. This capability is
|
|
|
|
/// indicated by the hasRawTextSupport() predicate.
|
2013-10-25 06:43:10 +08:00
|
|
|
void MCStreamer::EmitRawTextImpl(StringRef String) {
|
2010-04-04 05:35:55 +08:00
|
|
|
errs() << "EmitRawText called on an MCStreamer that doesn't support it, "
|
|
|
|
" something must not be fully mc'ized\n";
|
|
|
|
abort();
|
|
|
|
}
|
2010-04-04 06:12:35 +08:00
|
|
|
|
|
|
|
void MCStreamer::EmitRawText(const Twine &T) {
|
|
|
|
SmallString<128> Str;
|
2013-10-25 06:43:10 +08:00
|
|
|
EmitRawTextImpl(T.toStringRef(Str));
|
2010-04-04 06:12:35 +08:00
|
|
|
}
|
2011-05-10 11:14:15 +08:00
|
|
|
|
2014-07-14 03:03:36 +08:00
|
|
|
void MCStreamer::EmitWindowsUnwindTables() {
|
2011-05-22 12:15:07 +08:00
|
|
|
}
|
2012-01-07 11:13:18 +08:00
|
|
|
|
|
|
|
void MCStreamer::Finish() {
|
2014-07-14 03:03:36 +08:00
|
|
|
if (!DwarfFrameInfos.empty() && !DwarfFrameInfos.back().End)
|
2012-01-07 11:13:18 +08:00
|
|
|
report_fatal_error("Unfinished frame!");
|
|
|
|
|
2014-02-01 07:10:26 +08:00
|
|
|
MCTargetStreamer *TS = getTargetStreamer();
|
|
|
|
if (TS)
|
|
|
|
TS->finish();
|
|
|
|
|
2012-01-07 11:13:18 +08:00
|
|
|
FinishImpl();
|
|
|
|
}
|
2013-02-20 05:57:35 +08:00
|
|
|
|
2014-03-20 17:44:49 +08:00
|
|
|
void MCStreamer::EmitAssignment(MCSymbol *Symbol, const MCExpr *Value) {
|
2014-06-26 02:37:33 +08:00
|
|
|
visitUsedExpr(*Value);
|
2014-03-20 17:44:49 +08:00
|
|
|
Symbol->setVariableValue(Value);
|
|
|
|
|
|
|
|
MCTargetStreamer *TS = getTargetStreamer();
|
|
|
|
if (TS)
|
|
|
|
TS->emitAssignment(Symbol, Value);
|
|
|
|
}
|
2014-06-25 08:27:53 +08:00
|
|
|
|
2015-06-19 04:43:22 +08:00
|
|
|
void MCTargetStreamer::prettyPrintAsm(MCInstPrinter &InstPrinter, raw_ostream &OS,
|
|
|
|
const MCInst &Inst, const MCSubtargetInfo &STI) {
|
|
|
|
InstPrinter.printInst(&Inst, OS, "", STI);
|
|
|
|
}
|
|
|
|
|
2014-06-25 23:45:33 +08:00
|
|
|
void MCStreamer::visitUsedSymbol(const MCSymbol &Sym) {
|
|
|
|
}
|
|
|
|
|
|
|
|
void MCStreamer::visitUsedExpr(const MCExpr &Expr) {
|
|
|
|
switch (Expr.getKind()) {
|
|
|
|
case MCExpr::Target:
|
|
|
|
cast<MCTargetExpr>(Expr).visitUsedExpr(*this);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case MCExpr::Constant:
|
|
|
|
break;
|
|
|
|
|
|
|
|
case MCExpr::Binary: {
|
|
|
|
const MCBinaryExpr &BE = cast<MCBinaryExpr>(Expr);
|
|
|
|
visitUsedExpr(*BE.getLHS());
|
|
|
|
visitUsedExpr(*BE.getRHS());
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
|
|
|
|
case MCExpr::SymbolRef:
|
|
|
|
visitUsedSymbol(cast<MCSymbolRefExpr>(Expr).getSymbol());
|
|
|
|
break;
|
|
|
|
|
|
|
|
case MCExpr::Unary:
|
|
|
|
visitUsedExpr(*cast<MCUnaryExpr>(Expr).getSubExpr());
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
2014-06-26 02:37:33 +08:00
|
|
|
void MCStreamer::EmitInstruction(const MCInst &Inst,
|
|
|
|
const MCSubtargetInfo &STI) {
|
|
|
|
// Scan for values.
|
|
|
|
for (unsigned i = Inst.getNumOperands(); i--;)
|
|
|
|
if (Inst.getOperand(i).isExpr())
|
|
|
|
visitUsedExpr(*Inst.getOperand(i).getExpr());
|
|
|
|
}
|
|
|
|
|
2015-06-12 02:58:08 +08:00
|
|
|
void MCStreamer::emitAbsoluteSymbolDiff(const MCSymbol *Hi, const MCSymbol *Lo,
|
|
|
|
unsigned Size) {
|
|
|
|
// Get the Hi-Lo expression.
|
|
|
|
const MCExpr *Diff =
|
|
|
|
MCBinaryExpr::createSub(MCSymbolRefExpr::create(Hi, Context),
|
|
|
|
MCSymbolRefExpr::create(Lo, Context), Context);
|
|
|
|
|
|
|
|
const MCAsmInfo *MAI = Context.getAsmInfo();
|
|
|
|
if (!MAI->doesSetDirectiveSuppressesReloc()) {
|
|
|
|
EmitValue(Diff, Size);
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
// Otherwise, emit with .set (aka assignment).
|
|
|
|
MCSymbol *SetLabel = Context.createTempSymbol("set", true);
|
|
|
|
EmitAssignment(SetLabel, Diff);
|
|
|
|
EmitSymbolValue(SetLabel, Size);
|
|
|
|
}
|
|
|
|
|
2014-06-25 08:27:53 +08:00
|
|
|
void MCStreamer::EmitAssemblerFlag(MCAssemblerFlag Flag) {}
|
|
|
|
void MCStreamer::EmitThumbFunc(MCSymbol *Func) {}
|
|
|
|
void MCStreamer::EmitSymbolDesc(MCSymbol *Symbol, unsigned DescValue) {}
|
|
|
|
void MCStreamer::BeginCOFFSymbolDef(const MCSymbol *Symbol) {}
|
|
|
|
void MCStreamer::EndCOFFSymbolDef() {}
|
|
|
|
void MCStreamer::EmitFileDirective(StringRef Filename) {}
|
|
|
|
void MCStreamer::EmitCOFFSymbolStorageClass(int StorageClass) {}
|
|
|
|
void MCStreamer::EmitCOFFSymbolType(int Type) {}
|
2015-06-02 08:25:12 +08:00
|
|
|
void MCStreamer::emitELFSize(MCSymbolELF *Symbol, const MCExpr *Value) {}
|
2014-06-25 08:27:53 +08:00
|
|
|
void MCStreamer::EmitLocalCommonSymbol(MCSymbol *Symbol, uint64_t Size,
|
|
|
|
unsigned ByteAlignment) {}
|
2015-05-22 03:20:38 +08:00
|
|
|
void MCStreamer::EmitTBSSSymbol(MCSection *Section, MCSymbol *Symbol,
|
2014-06-25 08:27:53 +08:00
|
|
|
uint64_t Size, unsigned ByteAlignment) {}
|
2015-05-22 03:20:38 +08:00
|
|
|
void MCStreamer::ChangeSection(MCSection *, const MCExpr *) {}
|
2014-06-25 08:27:53 +08:00
|
|
|
void MCStreamer::EmitWeakReference(MCSymbol *Alias, const MCSymbol *Symbol) {}
|
|
|
|
void MCStreamer::EmitBytes(StringRef Data) {}
|
2015-09-21 07:35:59 +08:00
|
|
|
void MCStreamer::EmitValueImpl(const MCExpr *Value, unsigned Size, SMLoc Loc) {
|
2014-06-26 02:37:33 +08:00
|
|
|
visitUsedExpr(*Value);
|
|
|
|
}
|
2014-06-25 08:27:53 +08:00
|
|
|
void MCStreamer::EmitULEB128Value(const MCExpr *Value) {}
|
|
|
|
void MCStreamer::EmitSLEB128Value(const MCExpr *Value) {}
|
|
|
|
void MCStreamer::EmitValueToAlignment(unsigned ByteAlignment, int64_t Value,
|
|
|
|
unsigned ValueSize,
|
|
|
|
unsigned MaxBytesToEmit) {}
|
|
|
|
void MCStreamer::EmitCodeAlignment(unsigned ByteAlignment,
|
|
|
|
unsigned MaxBytesToEmit) {}
|
2015-11-05 07:59:18 +08:00
|
|
|
void MCStreamer::emitValueToOffset(const MCExpr *Offset, unsigned char Value) {}
|
2014-06-25 08:27:53 +08:00
|
|
|
void MCStreamer::EmitBundleAlignMode(unsigned AlignPow2) {}
|
|
|
|
void MCStreamer::EmitBundleLock(bool AlignToEnd) {}
|
|
|
|
void MCStreamer::FinishImpl() {}
|
|
|
|
void MCStreamer::EmitBundleUnlock() {}
|
2015-03-11 05:35:16 +08:00
|
|
|
|
2015-05-22 03:20:38 +08:00
|
|
|
void MCStreamer::SwitchSection(MCSection *Section, const MCExpr *Subsection) {
|
2015-03-11 05:35:16 +08:00
|
|
|
assert(Section && "Cannot switch to a null section!");
|
|
|
|
MCSectionSubPair curSection = SectionStack.back().first;
|
|
|
|
SectionStack.back().second = curSection;
|
|
|
|
if (MCSectionSubPair(Section, Subsection) != curSection) {
|
2015-05-28 04:52:32 +08:00
|
|
|
ChangeSection(Section, Subsection);
|
2015-03-11 05:35:16 +08:00
|
|
|
SectionStack.back().first = MCSectionSubPair(Section, Subsection);
|
2015-03-24 05:22:04 +08:00
|
|
|
assert(!Section->hasEnded() && "Section already ended");
|
2015-03-11 08:51:37 +08:00
|
|
|
MCSymbol *Sym = Section->getBeginSymbol();
|
|
|
|
if (Sym && !Sym->isInSection())
|
|
|
|
EmitLabel(Sym);
|
2015-03-11 05:35:16 +08:00
|
|
|
}
|
|
|
|
}
|
2015-03-24 05:22:04 +08:00
|
|
|
|
2015-05-22 03:20:38 +08:00
|
|
|
MCSymbol *MCStreamer::endSection(MCSection *Section) {
|
2015-03-24 05:22:04 +08:00
|
|
|
// TODO: keep track of the last subsection so that this symbol appears in the
|
|
|
|
// correct place.
|
|
|
|
MCSymbol *Sym = Section->getEndSymbol(Context);
|
|
|
|
if (Sym->isInSection())
|
|
|
|
return Sym;
|
|
|
|
|
|
|
|
SwitchSection(Section);
|
|
|
|
EmitLabel(Sym);
|
|
|
|
return Sym;
|
|
|
|
}
|