2009-06-24 01:03:06 +00:00
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//===- lib/MC/MCStreamer.cpp - Streaming Machine Code Output --------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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2012-12-03 16:50:05 +00:00
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#include "llvm/MC/MCStreamer.h"
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#include "llvm/ADT/SmallString.h"
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#include "llvm/ADT/Twine.h"
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2013-09-09 02:37:14 +00:00
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#include "llvm/MC/MCAsmBackend.h"
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2010-12-06 17:27:56 +00:00
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#include "llvm/MC/MCAsmInfo.h"
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2010-11-16 21:20:32 +00:00
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#include "llvm/MC/MCContext.h"
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2010-01-19 18:45:47 +00:00
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#include "llvm/MC/MCExpr.h"
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2010-09-30 16:52:03 +00:00
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#include "llvm/MC/MCObjectWriter.h"
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2011-04-27 15:21:19 +00:00
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#include "llvm/MC/MCSymbol.h"
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2010-11-01 14:28:48 +00:00
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#include "llvm/Support/ErrorHandling.h"
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2012-08-08 23:56:06 +00:00
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#include "llvm/Support/LEB128.h"
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2012-12-03 16:50:05 +00:00
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#include "llvm/Support/raw_ostream.h"
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2010-04-03 21:48:59 +00:00
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#include <cstdlib>
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2009-06-24 01:03:06 +00:00
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using namespace llvm;
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2013-11-19 00:57:56 +00:00
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// Pin the vtables to this file.
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2013-10-08 13:08:17 +00:00
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MCTargetStreamer::~MCTargetStreamer() {}
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2013-11-19 00:57:56 +00:00
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void ARMTargetStreamer::anchor() {}
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2013-10-08 13:08:17 +00:00
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MCStreamer::MCStreamer(MCContext &Ctx, MCTargetStreamer *TargetStreamer)
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: Context(Ctx), TargetStreamer(TargetStreamer), EmitEHFrame(true),
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EmitDebugFrame(false), CurrentW64UnwindInfo(0), LastSymbol(0),
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AutoInitSections(false) {
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2013-04-17 21:18:16 +00:00
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SectionStack.push_back(std::pair<MCSectionSubPair, MCSectionSubPair>());
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2013-10-08 13:08:17 +00:00
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if (TargetStreamer)
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TargetStreamer->setStreamer(this);
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2009-06-24 01:03:06 +00:00
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}
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MCStreamer::~MCStreamer() {
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2011-05-27 02:01:08 +00:00
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for (unsigned i = 0; i < getNumW64UnwindInfos(); ++i)
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delete W64UnwindInfos[i];
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2009-06-24 01:03:06 +00:00
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}
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2010-01-19 18:45:47 +00:00
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2012-12-12 22:59:46 +00:00
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void MCStreamer::reset() {
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for (unsigned i = 0; i < getNumW64UnwindInfos(); ++i)
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delete W64UnwindInfos[i];
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2013-05-07 21:14:15 +00:00
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W64UnwindInfos.clear();
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2012-12-12 22:59:46 +00:00
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EmitEHFrame = true;
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EmitDebugFrame = false;
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CurrentW64UnwindInfo = 0;
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LastSymbol = 0;
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SectionStack.clear();
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2013-04-17 21:18:16 +00:00
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SectionStack.push_back(std::pair<MCSectionSubPair, MCSectionSubPair>());
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2012-12-12 22:59:46 +00:00
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}
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2011-04-30 03:21:04 +00:00
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const MCExpr *MCStreamer::BuildSymbolDiff(MCContext &Context,
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const MCSymbol *A,
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const MCSymbol *B) {
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MCSymbolRefExpr::VariantKind Variant = MCSymbolRefExpr::VK_None;
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const MCExpr *ARef =
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MCSymbolRefExpr::Create(A, Variant, Context);
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const MCExpr *BRef =
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MCSymbolRefExpr::Create(B, Variant, Context);
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const MCExpr *AddrDelta =
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MCBinaryExpr::Create(MCBinaryExpr::Sub, ARef, BRef, Context);
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return AddrDelta;
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}
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2011-05-19 21:40:34 +00:00
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const MCExpr *MCStreamer::ForceExpAbs(const MCExpr* Expr) {
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2013-06-18 07:20:20 +00:00
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if (Context.getAsmInfo()->hasAggressiveSymbolFolding() ||
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2011-05-19 22:05:56 +00:00
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isa<MCSymbolRefExpr>(Expr))
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2011-05-19 21:40:34 +00:00
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return Expr;
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MCSymbol *ABS = Context.CreateTempSymbol();
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EmitAssignment(ABS, Expr);
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return MCSymbolRefExpr::Create(ABS, Context);
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2011-04-30 03:21:04 +00:00
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}
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2010-01-22 19:17:48 +00:00
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raw_ostream &MCStreamer::GetCommentOS() {
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// By default, discard comments.
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return nulls();
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2013-09-09 02:37:14 +00:00
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}
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2013-09-09 19:48:37 +00:00
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void MCStreamer::generateCompactUnwindEncodings(MCAsmBackend *MAB) {
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2013-09-09 02:37:14 +00:00
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for (std::vector<MCDwarfFrameInfo>::iterator I = FrameInfos.begin(),
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E = FrameInfos.end(); I != E; ++I)
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2013-09-09 19:48:37 +00:00
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I->CompactUnwindEncoding =
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2013-09-09 21:22:44 +00:00
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(MAB ? MAB->generateCompactUnwindEncoding(I->Instructions) : 0);
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2010-01-22 19:17:48 +00:00
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}
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2010-12-03 00:55:40 +00:00
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void MCStreamer::EmitDwarfSetLineAddr(int64_t LineDelta,
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const MCSymbol *Label, int PointerSize) {
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// emit the sequence to set the address
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EmitIntValue(dwarf::DW_LNS_extended_op, 1);
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EmitULEB128IntValue(PointerSize + 1);
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EmitIntValue(dwarf::DW_LNE_set_address, 1);
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EmitSymbolValue(Label, PointerSize);
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// emit the sequence for the LineDelta (from 1) and a zero address delta.
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MCDwarfLineAddr::Emit(this, LineDelta, 0);
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}
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2010-01-22 19:17:48 +00:00
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2010-01-19 22:03:38 +00:00
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/// EmitIntValue - Special case of EmitValue that avoids the client having to
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/// pass in a MCExpr for constant integers.
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2013-07-02 15:49:13 +00:00
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void MCStreamer::EmitIntValue(uint64_t Value, unsigned Size) {
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2010-12-09 19:26:21 +00:00
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assert(Size <= 8 && "Invalid size");
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2010-12-15 23:14:45 +00:00
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assert((isUIntN(8 * Size, Value) || isIntN(8 * Size, Value)) &&
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"Invalid size");
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2010-12-03 02:54:21 +00:00
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char buf[8];
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2013-06-18 07:20:20 +00:00
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const bool isLittleEndian = Context.getAsmInfo()->isLittleEndian();
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2011-06-07 17:31:02 +00:00
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for (unsigned i = 0; i != Size; ++i) {
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unsigned index = isLittleEndian ? i : (Size - i - 1);
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buf[i] = uint8_t(Value >> (index * 8));
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}
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2013-07-02 15:49:13 +00:00
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EmitBytes(StringRef(buf, Size));
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2010-01-19 22:03:38 +00:00
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}
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2010-11-02 17:22:24 +00:00
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/// EmitULEB128Value - Special case of EmitULEB128Value that avoids the
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/// client having to pass in a MCExpr for constant integers.
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2013-07-02 15:49:13 +00:00
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void MCStreamer::EmitULEB128IntValue(uint64_t Value, unsigned Padding) {
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2012-02-23 21:15:21 +00:00
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SmallString<128> Tmp;
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2010-12-03 01:19:49 +00:00
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raw_svector_ostream OSE(Tmp);
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2012-08-08 23:56:06 +00:00
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encodeULEB128(Value, OSE, Padding);
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2013-07-02 15:49:13 +00:00
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EmitBytes(OSE.str());
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2010-09-30 16:52:03 +00:00
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}
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2010-11-02 17:22:24 +00:00
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/// EmitSLEB128Value - Special case of EmitSLEB128Value that avoids the
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/// client having to pass in a MCExpr for constant integers.
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2013-07-02 15:49:13 +00:00
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void MCStreamer::EmitSLEB128IntValue(int64_t Value) {
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2012-02-23 21:15:21 +00:00
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SmallString<128> Tmp;
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2010-12-03 01:19:49 +00:00
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raw_svector_ostream OSE(Tmp);
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2012-08-08 23:56:06 +00:00
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encodeSLEB128(Value, OSE);
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2013-07-02 15:49:13 +00:00
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EmitBytes(OSE.str());
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2010-09-30 16:52:03 +00:00
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}
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2013-07-02 15:49:13 +00:00
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void MCStreamer::EmitAbsValue(const MCExpr *Value, unsigned Size) {
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2011-05-19 21:40:34 +00:00
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const MCExpr *ABS = ForceExpAbs(Value);
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2013-07-02 15:49:13 +00:00
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EmitValue(ABS, Size);
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2010-12-06 17:27:56 +00:00
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}
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2010-12-10 07:39:47 +00:00
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2013-07-02 15:49:13 +00:00
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void MCStreamer::EmitValue(const MCExpr *Value, unsigned Size) {
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EmitValueImpl(Value, Size);
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2010-12-10 07:39:47 +00:00
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}
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2013-07-02 15:49:13 +00:00
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void MCStreamer::EmitSymbolValue(const MCSymbol *Sym, unsigned Size) {
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EmitValueImpl(MCSymbolRefExpr::Create(Sym, getContext()), Size);
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2010-12-10 07:39:47 +00:00
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}
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2012-02-03 04:33:00 +00:00
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void MCStreamer::EmitGPRel64Value(const MCExpr *Value) {
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report_fatal_error("unsupported directive in streamer");
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}
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2010-11-28 15:09:24 +00:00
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void MCStreamer::EmitGPRel32Value(const MCExpr *Value) {
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report_fatal_error("unsupported directive in streamer");
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}
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2010-01-19 18:45:47 +00:00
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/// EmitFill - Emit NumBytes bytes worth of the value specified by
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/// FillValue. This implements directives such as '.space'.
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2013-07-02 15:49:13 +00:00
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void MCStreamer::EmitFill(uint64_t NumBytes, uint8_t FillValue) {
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2010-01-19 18:45:47 +00:00
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const MCExpr *E = MCConstantExpr::Create(FillValue, getContext());
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for (uint64_t i = 0, e = NumBytes; i != e; ++i)
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2013-07-02 15:49:13 +00:00
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EmitValue(E, 1);
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2010-01-19 18:45:47 +00:00
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}
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2010-04-03 21:35:55 +00:00
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2013-07-02 15:49:13 +00:00
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/// The implementation in this class just redirects to EmitFill.
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void MCStreamer::EmitZeros(uint64_t NumBytes) {
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EmitFill(NumBytes, 0);
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2013-06-27 14:35:03 +00:00
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}
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2010-11-16 21:20:32 +00:00
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bool MCStreamer::EmitDwarfFileDirective(unsigned FileNo,
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2011-10-17 23:05:28 +00:00
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StringRef Directory,
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2013-03-07 01:42:00 +00:00
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StringRef Filename, unsigned CUID) {
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return getContext().GetDwarfFile(Directory, Filename, FileNo, CUID) == 0;
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2010-11-16 21:20:32 +00:00
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}
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void MCStreamer::EmitDwarfLocDirective(unsigned FileNo, unsigned Line,
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unsigned Column, unsigned Flags,
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unsigned Isa,
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2011-04-18 20:26:49 +00:00
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unsigned Discriminator,
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StringRef FileName) {
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2010-11-16 21:20:32 +00:00
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getContext().setCurrentDwarfLoc(FileNo, Line, Column, Flags, Isa,
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Discriminator);
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}
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2010-12-10 07:39:47 +00:00
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MCDwarfFrameInfo *MCStreamer::getCurrentFrameInfo() {
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if (FrameInfos.empty())
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2013-03-18 23:08:01 +00:00
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return 0;
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2010-12-10 07:39:47 +00:00
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return &FrameInfos.back();
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}
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void MCStreamer::EnsureValidFrame() {
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MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
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if (!CurFrame || CurFrame->End)
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report_fatal_error("No open frame");
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}
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2011-04-28 12:50:37 +00:00
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void MCStreamer::EmitEHSymAttributes(const MCSymbol *Symbol,
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MCSymbol *EHSymbol) {
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}
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2013-09-19 23:21:01 +00:00
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void MCStreamer::AssignSection(MCSymbol *Symbol, const MCSection *Section) {
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if (Section)
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Symbol->setSection(*Section);
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else
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Symbol->setUndefined();
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// As we emit symbols into a section, track the order so that they can
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// be sorted upon later. Zero is reserved to mean 'unemitted'.
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SymbolOrdering[Symbol] = 1 + SymbolOrdering.size();
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}
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2011-04-27 15:21:19 +00:00
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void MCStreamer::EmitLabel(MCSymbol *Symbol) {
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assert(!Symbol->isVariable() && "Cannot emit a variable symbol!");
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2013-04-17 21:18:16 +00:00
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assert(getCurrentSection().first && "Cannot emit before setting section!");
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2013-09-19 23:21:01 +00:00
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AssignSection(Symbol, getCurrentSection().first);
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2011-08-02 20:24:22 +00:00
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LastSymbol = Symbol;
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2011-04-27 15:21:19 +00:00
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}
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2012-12-16 04:00:45 +00:00
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void MCStreamer::EmitDebugLabel(MCSymbol *Symbol) {
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assert(!Symbol->isVariable() && "Cannot emit a variable symbol!");
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2013-04-17 21:18:16 +00:00
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assert(getCurrentSection().first && "Cannot emit before setting section!");
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2013-09-19 23:21:01 +00:00
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AssignSection(Symbol, getCurrentSection().first);
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2012-12-16 04:00:45 +00:00
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LastSymbol = Symbol;
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}
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2011-07-19 00:01:42 +00:00
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void MCStreamer::EmitCompactUnwindEncoding(uint32_t CompactUnwindEncoding) {
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EnsureValidFrame();
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MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
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CurFrame->CompactUnwindEncoding = CompactUnwindEncoding;
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}
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2011-05-10 01:10:18 +00:00
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void MCStreamer::EmitCFISections(bool EH, bool Debug) {
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2011-05-10 13:39:48 +00:00
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assert(EH || Debug);
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2011-05-10 01:10:18 +00:00
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EmitEHFrame = EH;
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EmitDebugFrame = Debug;
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}
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2011-04-12 23:59:07 +00:00
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void MCStreamer::EmitCFIStartProc() {
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2010-12-10 07:39:47 +00:00
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MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
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2011-04-12 23:59:07 +00:00
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if (CurFrame && !CurFrame->End)
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2010-12-10 07:39:47 +00:00
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report_fatal_error("Starting a frame before finishing the previous one!");
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2011-08-02 20:24:22 +00:00
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2011-08-24 22:31:37 +00:00
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MCDwarfFrameInfo Frame;
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2012-01-07 22:42:19 +00:00
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EmitCFIStartProcImpl(Frame);
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FrameInfos.push_back(Frame);
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}
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2011-08-02 20:24:22 +00:00
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2012-01-07 22:42:19 +00:00
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void MCStreamer::EmitCFIStartProcImpl(MCDwarfFrameInfo &Frame) {
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}
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void MCStreamer::RecordProcStart(MCDwarfFrameInfo &Frame) {
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Frame.Function = LastSymbol;
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2011-08-02 20:24:22 +00:00
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// If the function is externally visible, we need to create a local
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// symbol to avoid relocations.
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2013-06-18 07:20:20 +00:00
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StringRef Prefix = getContext().getAsmInfo()->getPrivateGlobalPrefix();
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2011-08-24 22:31:37 +00:00
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if (LastSymbol && LastSymbol->getName().startswith(Prefix)) {
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2011-08-02 20:24:22 +00:00
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Frame.Begin = LastSymbol;
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} else {
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Frame.Begin = getContext().CreateTempSymbol();
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EmitLabel(Frame.Begin);
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}
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2010-11-22 14:27:24 +00:00
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}
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2011-04-12 23:59:07 +00:00
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void MCStreamer::EmitCFIEndProc() {
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2010-12-10 07:39:47 +00:00
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EnsureValidFrame();
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MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
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2012-01-09 00:17:29 +00:00
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|
EmitCFIEndProcImpl(*CurFrame);
|
|
|
|
}
|
|
|
|
|
|
|
|
void MCStreamer::EmitCFIEndProcImpl(MCDwarfFrameInfo &Frame) {
|
|
|
|
}
|
|
|
|
|
|
|
|
void MCStreamer::RecordProcEnd(MCDwarfFrameInfo &Frame) {
|
|
|
|
Frame.End = getContext().CreateTempSymbol();
|
|
|
|
EmitLabel(Frame.End);
|
2010-11-22 14:27:24 +00:00
|
|
|
}
|
|
|
|
|
2012-11-24 02:18:49 +00:00
|
|
|
MCSymbol *MCStreamer::EmitCFICommon() {
|
2010-12-29 01:42:56 +00:00
|
|
|
EnsureValidFrame();
|
|
|
|
MCSymbol *Label = getContext().CreateTempSymbol();
|
|
|
|
EmitLabel(Label);
|
2012-11-24 02:18:49 +00:00
|
|
|
return Label;
|
|
|
|
}
|
|
|
|
|
|
|
|
void MCStreamer::EmitCFIDefCfa(int64_t Register, int64_t Offset) {
|
|
|
|
MCSymbol *Label = EmitCFICommon();
|
2012-11-24 02:01:08 +00:00
|
|
|
MCCFIInstruction Instruction =
|
|
|
|
MCCFIInstruction::createDefCfa(Label, Register, Offset);
|
2012-11-24 02:18:49 +00:00
|
|
|
MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
|
2010-12-29 01:42:56 +00:00
|
|
|
CurFrame->Instructions.push_back(Instruction);
|
|
|
|
}
|
|
|
|
|
2011-04-12 23:59:07 +00:00
|
|
|
void MCStreamer::EmitCFIDefCfaOffset(int64_t Offset) {
|
2012-11-24 02:18:49 +00:00
|
|
|
MCSymbol *Label = EmitCFICommon();
|
2012-11-24 02:01:08 +00:00
|
|
|
MCCFIInstruction Instruction =
|
|
|
|
MCCFIInstruction::createDefCfaOffset(Label, Offset);
|
2012-11-24 02:18:49 +00:00
|
|
|
MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
|
2010-12-28 18:36:23 +00:00
|
|
|
CurFrame->Instructions.push_back(Instruction);
|
2010-11-22 14:27:24 +00:00
|
|
|
}
|
|
|
|
|
2011-04-12 18:53:30 +00:00
|
|
|
void MCStreamer::EmitCFIAdjustCfaOffset(int64_t Adjustment) {
|
2012-11-24 02:18:49 +00:00
|
|
|
MCSymbol *Label = EmitCFICommon();
|
2012-11-24 02:01:08 +00:00
|
|
|
MCCFIInstruction Instruction =
|
|
|
|
MCCFIInstruction::createAdjustCfaOffset(Label, Adjustment);
|
2012-11-24 02:18:49 +00:00
|
|
|
MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
|
2011-04-12 18:53:30 +00:00
|
|
|
CurFrame->Instructions.push_back(Instruction);
|
|
|
|
}
|
|
|
|
|
2011-04-12 23:59:07 +00:00
|
|
|
void MCStreamer::EmitCFIDefCfaRegister(int64_t Register) {
|
2012-11-24 02:18:49 +00:00
|
|
|
MCSymbol *Label = EmitCFICommon();
|
2012-11-24 02:01:08 +00:00
|
|
|
MCCFIInstruction Instruction =
|
|
|
|
MCCFIInstruction::createDefCfaRegister(Label, Register);
|
2012-11-24 02:18:49 +00:00
|
|
|
MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
|
2010-12-29 00:26:06 +00:00
|
|
|
CurFrame->Instructions.push_back(Instruction);
|
2010-11-22 14:27:24 +00:00
|
|
|
}
|
|
|
|
|
2011-04-12 23:59:07 +00:00
|
|
|
void MCStreamer::EmitCFIOffset(int64_t Register, int64_t Offset) {
|
2012-11-24 02:18:49 +00:00
|
|
|
MCSymbol *Label = EmitCFICommon();
|
2012-11-24 02:01:08 +00:00
|
|
|
MCCFIInstruction Instruction =
|
2012-11-24 03:10:54 +00:00
|
|
|
MCCFIInstruction::createOffset(Label, Register, Offset);
|
2012-11-24 02:18:49 +00:00
|
|
|
MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
|
2010-12-29 00:09:59 +00:00
|
|
|
CurFrame->Instructions.push_back(Instruction);
|
2010-11-22 14:27:24 +00:00
|
|
|
}
|
|
|
|
|
2011-04-12 16:12:03 +00:00
|
|
|
void MCStreamer::EmitCFIRelOffset(int64_t Register, int64_t Offset) {
|
2012-11-24 02:18:49 +00:00
|
|
|
MCSymbol *Label = EmitCFICommon();
|
2012-11-24 02:01:08 +00:00
|
|
|
MCCFIInstruction Instruction =
|
|
|
|
MCCFIInstruction::createRelOffset(Label, Register, Offset);
|
2012-11-24 02:18:49 +00:00
|
|
|
MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
|
2011-04-12 16:12:03 +00:00
|
|
|
CurFrame->Instructions.push_back(Instruction);
|
|
|
|
}
|
|
|
|
|
2011-04-12 23:59:07 +00:00
|
|
|
void MCStreamer::EmitCFIPersonality(const MCSymbol *Sym,
|
2010-12-27 00:36:05 +00:00
|
|
|
unsigned Encoding) {
|
2010-12-10 07:39:47 +00:00
|
|
|
EnsureValidFrame();
|
|
|
|
MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
|
|
|
|
CurFrame->Personality = Sym;
|
2010-12-27 00:36:05 +00:00
|
|
|
CurFrame->PersonalityEncoding = Encoding;
|
2010-11-22 14:27:24 +00:00
|
|
|
}
|
|
|
|
|
2011-04-12 23:59:07 +00:00
|
|
|
void MCStreamer::EmitCFILsda(const MCSymbol *Sym, unsigned Encoding) {
|
2010-12-10 07:39:47 +00:00
|
|
|
EnsureValidFrame();
|
|
|
|
MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
|
|
|
|
CurFrame->Lsda = Sym;
|
2010-12-27 15:56:22 +00:00
|
|
|
CurFrame->LsdaEncoding = Encoding;
|
2010-11-22 14:27:24 +00:00
|
|
|
}
|
|
|
|
|
2011-04-12 23:59:07 +00:00
|
|
|
void MCStreamer::EmitCFIRememberState() {
|
2012-11-24 02:18:49 +00:00
|
|
|
MCSymbol *Label = EmitCFICommon();
|
2012-11-24 02:01:08 +00:00
|
|
|
MCCFIInstruction Instruction = MCCFIInstruction::createRememberState(Label);
|
2012-11-24 02:18:49 +00:00
|
|
|
MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
|
2010-12-28 18:36:23 +00:00
|
|
|
CurFrame->Instructions.push_back(Instruction);
|
|
|
|
}
|
|
|
|
|
2011-04-12 23:59:07 +00:00
|
|
|
void MCStreamer::EmitCFIRestoreState() {
|
2010-12-28 18:36:23 +00:00
|
|
|
// FIXME: Error if there is no matching cfi_remember_state.
|
2012-11-24 02:18:49 +00:00
|
|
|
MCSymbol *Label = EmitCFICommon();
|
2012-11-24 02:01:08 +00:00
|
|
|
MCCFIInstruction Instruction = MCCFIInstruction::createRestoreState(Label);
|
2012-11-24 02:18:49 +00:00
|
|
|
MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
|
2010-12-28 18:36:23 +00:00
|
|
|
CurFrame->Instructions.push_back(Instruction);
|
|
|
|
}
|
|
|
|
|
2011-04-12 15:31:05 +00:00
|
|
|
void MCStreamer::EmitCFISameValue(int64_t Register) {
|
2012-11-24 02:18:49 +00:00
|
|
|
MCSymbol *Label = EmitCFICommon();
|
2012-11-24 02:01:08 +00:00
|
|
|
MCCFIInstruction Instruction =
|
|
|
|
MCCFIInstruction::createSameValue(Label, Register);
|
2012-11-24 02:18:49 +00:00
|
|
|
MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
|
2011-04-12 15:31:05 +00:00
|
|
|
CurFrame->Instructions.push_back(Instruction);
|
|
|
|
}
|
|
|
|
|
2011-12-29 21:43:03 +00:00
|
|
|
void MCStreamer::EmitCFIRestore(int64_t Register) {
|
2012-11-24 02:18:49 +00:00
|
|
|
MCSymbol *Label = EmitCFICommon();
|
2012-11-24 02:01:08 +00:00
|
|
|
MCCFIInstruction Instruction =
|
|
|
|
MCCFIInstruction::createRestore(Label, Register);
|
2012-11-24 02:18:49 +00:00
|
|
|
MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
|
2011-12-29 21:43:03 +00:00
|
|
|
CurFrame->Instructions.push_back(Instruction);
|
|
|
|
}
|
|
|
|
|
2011-12-29 20:24:47 +00:00
|
|
|
void MCStreamer::EmitCFIEscape(StringRef Values) {
|
2012-11-24 02:18:49 +00:00
|
|
|
MCSymbol *Label = EmitCFICommon();
|
2012-11-24 02:01:08 +00:00
|
|
|
MCCFIInstruction Instruction = MCCFIInstruction::createEscape(Label, Values);
|
2012-11-24 02:18:49 +00:00
|
|
|
MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
|
2011-12-29 20:24:47 +00:00
|
|
|
CurFrame->Instructions.push_back(Instruction);
|
|
|
|
}
|
|
|
|
|
2012-01-23 21:51:52 +00:00
|
|
|
void MCStreamer::EmitCFISignalFrame() {
|
|
|
|
EnsureValidFrame();
|
|
|
|
MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
|
|
|
|
CurFrame->IsSignalFrame = true;
|
|
|
|
}
|
|
|
|
|
2012-11-23 16:59:41 +00:00
|
|
|
void MCStreamer::EmitCFIUndefined(int64_t Register) {
|
2012-11-24 02:18:49 +00:00
|
|
|
MCSymbol *Label = EmitCFICommon();
|
2012-11-24 02:01:08 +00:00
|
|
|
MCCFIInstruction Instruction =
|
|
|
|
MCCFIInstruction::createUndefined(Label, Register);
|
2012-11-24 02:18:49 +00:00
|
|
|
MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
|
2012-11-23 16:59:41 +00:00
|
|
|
CurFrame->Instructions.push_back(Instruction);
|
|
|
|
}
|
|
|
|
|
2012-11-25 15:14:49 +00:00
|
|
|
void MCStreamer::EmitCFIRegister(int64_t Register1, int64_t Register2) {
|
|
|
|
MCSymbol *Label = EmitCFICommon();
|
|
|
|
MCCFIInstruction Instruction =
|
|
|
|
MCCFIInstruction::createRegister(Label, Register1, Register2);
|
|
|
|
MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
|
|
|
|
CurFrame->Instructions.push_back(Instruction);
|
|
|
|
}
|
|
|
|
|
2013-09-26 14:49:40 +00:00
|
|
|
void MCStreamer::EmitCFIWindowSave() {
|
|
|
|
MCSymbol *Label = EmitCFICommon();
|
|
|
|
MCCFIInstruction Instruction =
|
|
|
|
MCCFIInstruction::createWindowSave(Label);
|
|
|
|
MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo();
|
|
|
|
CurFrame->Instructions.push_back(Instruction);
|
|
|
|
}
|
|
|
|
|
2011-05-19 04:04:13 +00:00
|
|
|
void MCStreamer::setCurrentW64UnwindInfo(MCWin64EHUnwindInfo *Frame) {
|
2011-05-26 02:45:47 +00:00
|
|
|
W64UnwindInfos.push_back(Frame);
|
|
|
|
CurrentW64UnwindInfo = W64UnwindInfos.back();
|
2011-05-18 04:47:22 +00:00
|
|
|
}
|
|
|
|
|
2011-05-19 02:49:00 +00:00
|
|
|
void MCStreamer::EnsureValidW64UnwindInfo() {
|
2011-05-19 04:04:13 +00:00
|
|
|
MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
|
2011-05-19 02:49:00 +00:00
|
|
|
if (!CurFrame || CurFrame->End)
|
|
|
|
report_fatal_error("No open Win64 EH frame function!");
|
|
|
|
}
|
|
|
|
|
2011-05-22 21:12:15 +00:00
|
|
|
void MCStreamer::EmitWin64EHStartProc(const MCSymbol *Symbol) {
|
2011-05-19 04:04:13 +00:00
|
|
|
MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
|
2011-05-19 02:49:00 +00:00
|
|
|
if (CurFrame && !CurFrame->End)
|
|
|
|
report_fatal_error("Starting a function before ending the previous one!");
|
2011-05-27 02:01:08 +00:00
|
|
|
MCWin64EHUnwindInfo *Frame = new MCWin64EHUnwindInfo;
|
2011-05-26 02:45:47 +00:00
|
|
|
Frame->Begin = getContext().CreateTempSymbol();
|
|
|
|
Frame->Function = Symbol;
|
|
|
|
EmitLabel(Frame->Begin);
|
|
|
|
setCurrentW64UnwindInfo(Frame);
|
2011-05-19 02:49:00 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
void MCStreamer::EmitWin64EHEndProc() {
|
|
|
|
EnsureValidW64UnwindInfo();
|
2011-05-19 04:04:13 +00:00
|
|
|
MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
|
|
|
|
if (CurFrame->ChainedParent)
|
2011-05-19 02:49:00 +00:00
|
|
|
report_fatal_error("Not all chained regions terminated!");
|
|
|
|
CurFrame->End = getContext().CreateTempSymbol();
|
|
|
|
EmitLabel(CurFrame->End);
|
2011-05-15 17:20:01 +00:00
|
|
|
}
|
|
|
|
|
2011-05-19 17:46:39 +00:00
|
|
|
void MCStreamer::EmitWin64EHStartChained() {
|
2011-05-19 04:04:13 +00:00
|
|
|
EnsureValidW64UnwindInfo();
|
2011-05-27 02:01:08 +00:00
|
|
|
MCWin64EHUnwindInfo *Frame = new MCWin64EHUnwindInfo;
|
2011-05-19 04:04:13 +00:00
|
|
|
MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
|
2011-05-26 02:45:47 +00:00
|
|
|
Frame->Begin = getContext().CreateTempSymbol();
|
|
|
|
Frame->Function = CurFrame->Function;
|
|
|
|
Frame->ChainedParent = CurFrame;
|
|
|
|
EmitLabel(Frame->Begin);
|
|
|
|
setCurrentW64UnwindInfo(Frame);
|
2011-05-18 20:54:10 +00:00
|
|
|
}
|
|
|
|
|
2011-05-19 17:46:39 +00:00
|
|
|
void MCStreamer::EmitWin64EHEndChained() {
|
2011-05-19 04:04:13 +00:00
|
|
|
EnsureValidW64UnwindInfo();
|
|
|
|
MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
|
|
|
|
if (!CurFrame->ChainedParent)
|
|
|
|
report_fatal_error("End of a chained region outside a chained region!");
|
|
|
|
CurFrame->End = getContext().CreateTempSymbol();
|
|
|
|
EmitLabel(CurFrame->End);
|
|
|
|
CurrentW64UnwindInfo = CurFrame->ChainedParent;
|
2011-05-18 20:54:10 +00:00
|
|
|
}
|
|
|
|
|
2011-05-19 17:46:39 +00:00
|
|
|
void MCStreamer::EmitWin64EHHandler(const MCSymbol *Sym, bool Unwind,
|
|
|
|
bool Except) {
|
|
|
|
EnsureValidW64UnwindInfo();
|
|
|
|
MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
|
2011-05-21 17:36:25 +00:00
|
|
|
if (CurFrame->ChainedParent)
|
|
|
|
report_fatal_error("Chained unwind areas can't have handlers!");
|
2011-05-19 17:46:39 +00:00
|
|
|
CurFrame->ExceptionHandler = Sym;
|
2011-05-21 15:57:49 +00:00
|
|
|
if (!Except && !Unwind)
|
2011-05-19 17:46:39 +00:00
|
|
|
report_fatal_error("Don't know what kind of handler this is!");
|
2011-05-21 15:57:49 +00:00
|
|
|
if (Unwind)
|
|
|
|
CurFrame->HandlesUnwind = true;
|
|
|
|
if (Except)
|
|
|
|
CurFrame->HandlesExceptions = true;
|
2011-05-19 17:46:39 +00:00
|
|
|
}
|
|
|
|
|
|
|
|
void MCStreamer::EmitWin64EHHandlerData() {
|
2011-05-20 16:06:22 +00:00
|
|
|
EnsureValidW64UnwindInfo();
|
2011-05-21 17:36:25 +00:00
|
|
|
MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
|
|
|
|
if (CurFrame->ChainedParent)
|
|
|
|
report_fatal_error("Chained unwind areas can't have handlers!");
|
2011-05-18 20:54:10 +00:00
|
|
|
}
|
|
|
|
|
2011-05-19 19:35:55 +00:00
|
|
|
void MCStreamer::EmitWin64EHPushReg(unsigned Register) {
|
|
|
|
EnsureValidW64UnwindInfo();
|
|
|
|
MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
|
2011-05-27 03:25:01 +00:00
|
|
|
MCSymbol *Label = getContext().CreateTempSymbol();
|
|
|
|
MCWin64EHInstruction Inst(Win64EH::UOP_PushNonVol, Label, Register);
|
|
|
|
EmitLabel(Label);
|
2011-05-19 19:35:55 +00:00
|
|
|
CurFrame->Instructions.push_back(Inst);
|
2011-05-18 20:54:10 +00:00
|
|
|
}
|
|
|
|
|
2011-05-19 19:35:55 +00:00
|
|
|
void MCStreamer::EmitWin64EHSetFrame(unsigned Register, unsigned Offset) {
|
|
|
|
EnsureValidW64UnwindInfo();
|
2011-05-27 01:42:17 +00:00
|
|
|
MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
|
|
|
|
if (CurFrame->LastFrameInst >= 0)
|
|
|
|
report_fatal_error("Frame register and offset already specified!");
|
2011-05-22 00:56:20 +00:00
|
|
|
if (Offset & 0x0F)
|
|
|
|
report_fatal_error("Misaligned frame pointer offset!");
|
2013-08-27 04:16:16 +00:00
|
|
|
MCSymbol *Label = getContext().CreateTempSymbol();
|
|
|
|
MCWin64EHInstruction Inst(Win64EH::UOP_SetFPReg, Label, Register, Offset);
|
|
|
|
EmitLabel(Label);
|
2011-05-21 00:09:04 +00:00
|
|
|
CurFrame->LastFrameInst = CurFrame->Instructions.size();
|
2011-05-19 19:35:55 +00:00
|
|
|
CurFrame->Instructions.push_back(Inst);
|
2011-05-15 17:20:01 +00:00
|
|
|
}
|
|
|
|
|
2011-05-19 19:35:55 +00:00
|
|
|
void MCStreamer::EmitWin64EHAllocStack(unsigned Size) {
|
|
|
|
EnsureValidW64UnwindInfo();
|
2011-05-22 00:56:20 +00:00
|
|
|
if (Size & 7)
|
|
|
|
report_fatal_error("Misaligned stack allocation!");
|
2011-05-19 19:35:55 +00:00
|
|
|
MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
|
2011-05-27 03:25:01 +00:00
|
|
|
MCSymbol *Label = getContext().CreateTempSymbol();
|
|
|
|
MCWin64EHInstruction Inst(Label, Size);
|
|
|
|
EmitLabel(Label);
|
2011-05-19 19:35:55 +00:00
|
|
|
CurFrame->Instructions.push_back(Inst);
|
2011-05-15 17:20:01 +00:00
|
|
|
}
|
|
|
|
|
2011-05-19 19:35:55 +00:00
|
|
|
void MCStreamer::EmitWin64EHSaveReg(unsigned Register, unsigned Offset) {
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|
|
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EnsureValidW64UnwindInfo();
|
2011-05-22 00:56:20 +00:00
|
|
|
if (Offset & 7)
|
|
|
|
report_fatal_error("Misaligned saved register offset!");
|
2011-05-19 19:35:55 +00:00
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|
MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
|
2011-05-27 03:25:01 +00:00
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|
MCSymbol *Label = getContext().CreateTempSymbol();
|
2011-05-19 19:35:55 +00:00
|
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|
MCWin64EHInstruction Inst(
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2011-05-27 01:42:17 +00:00
|
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|
Offset > 512*1024-8 ? Win64EH::UOP_SaveNonVolBig : Win64EH::UOP_SaveNonVol,
|
2011-05-27 03:25:01 +00:00
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|
Label, Register, Offset);
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|
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|
EmitLabel(Label);
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2011-05-19 19:35:55 +00:00
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|
CurFrame->Instructions.push_back(Inst);
|
2011-05-15 17:20:01 +00:00
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|
}
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|
2011-05-19 19:35:55 +00:00
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|
|
void MCStreamer::EmitWin64EHSaveXMM(unsigned Register, unsigned Offset) {
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|
EnsureValidW64UnwindInfo();
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2011-05-22 00:56:20 +00:00
|
|
|
if (Offset & 0x0F)
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|
|
|
report_fatal_error("Misaligned saved vector register offset!");
|
2011-05-19 19:35:55 +00:00
|
|
|
MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
|
2011-05-27 03:25:01 +00:00
|
|
|
MCSymbol *Label = getContext().CreateTempSymbol();
|
2011-05-19 19:35:55 +00:00
|
|
|
MCWin64EHInstruction Inst(
|
2011-05-27 01:42:17 +00:00
|
|
|
Offset > 512*1024-16 ? Win64EH::UOP_SaveXMM128Big : Win64EH::UOP_SaveXMM128,
|
2011-05-27 03:25:01 +00:00
|
|
|
Label, Register, Offset);
|
|
|
|
EmitLabel(Label);
|
2011-05-19 19:35:55 +00:00
|
|
|
CurFrame->Instructions.push_back(Inst);
|
2011-05-15 17:20:01 +00:00
|
|
|
}
|
|
|
|
|
2011-05-19 17:46:39 +00:00
|
|
|
void MCStreamer::EmitWin64EHPushFrame(bool Code) {
|
2011-05-19 19:35:55 +00:00
|
|
|
EnsureValidW64UnwindInfo();
|
|
|
|
MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
|
2011-05-27 01:42:17 +00:00
|
|
|
if (CurFrame->Instructions.size() > 0)
|
|
|
|
report_fatal_error("If present, PushMachFrame must be the first UOP");
|
2011-05-27 03:25:01 +00:00
|
|
|
MCSymbol *Label = getContext().CreateTempSymbol();
|
|
|
|
MCWin64EHInstruction Inst(Win64EH::UOP_PushMachFrame, Label, Code);
|
|
|
|
EmitLabel(Label);
|
2011-05-19 19:35:55 +00:00
|
|
|
CurFrame->Instructions.push_back(Inst);
|
2011-05-15 17:20:01 +00:00
|
|
|
}
|
|
|
|
|
2011-05-19 17:46:39 +00:00
|
|
|
void MCStreamer::EmitWin64EHEndProlog() {
|
2011-05-19 21:24:54 +00:00
|
|
|
EnsureValidW64UnwindInfo();
|
|
|
|
MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo;
|
|
|
|
CurFrame->PrologEnd = getContext().CreateTempSymbol();
|
|
|
|
EmitLabel(CurFrame->PrologEnd);
|
2011-05-16 21:13:58 +00:00
|
|
|
}
|
|
|
|
|
2011-12-17 01:14:52 +00:00
|
|
|
void MCStreamer::EmitCOFFSecRel32(MCSymbol const *Symbol) {
|
2012-02-07 05:05:23 +00:00
|
|
|
llvm_unreachable("This file format doesn't support this directive");
|
2011-12-17 01:14:52 +00:00
|
|
|
}
|
|
|
|
|
2010-05-20 19:45:09 +00:00
|
|
|
/// EmitRawText - If this file is backed by an assembly streamer, this dumps
|
2010-04-03 21:35:55 +00:00
|
|
|
/// the specified string in the output .s file. This capability is
|
|
|
|
/// indicated by the hasRawTextSupport() predicate.
|
2013-10-24 22:43:10 +00:00
|
|
|
void MCStreamer::EmitRawTextImpl(StringRef String) {
|
2010-04-03 21:35:55 +00:00
|
|
|
errs() << "EmitRawText called on an MCStreamer that doesn't support it, "
|
|
|
|
" something must not be fully mc'ized\n";
|
|
|
|
abort();
|
|
|
|
}
|
2010-04-03 22:12:35 +00:00
|
|
|
|
|
|
|
void MCStreamer::EmitRawText(const Twine &T) {
|
|
|
|
SmallString<128> Str;
|
2013-10-24 22:43:10 +00:00
|
|
|
EmitRawTextImpl(T.toStringRef(Str));
|
2010-04-03 22:12:35 +00:00
|
|
|
}
|
2011-05-10 03:14:15 +00:00
|
|
|
|
2013-09-09 19:48:37 +00:00
|
|
|
void MCStreamer::EmitFrames(MCAsmBackend *MAB, bool usingCFI) {
|
2011-05-10 03:14:15 +00:00
|
|
|
if (!getNumFrameInfos())
|
|
|
|
return;
|
|
|
|
|
|
|
|
if (EmitEHFrame)
|
2013-09-09 19:48:37 +00:00
|
|
|
MCDwarfFrameEmitter::Emit(*this, MAB, usingCFI, true);
|
2011-05-10 03:54:12 +00:00
|
|
|
|
|
|
|
if (EmitDebugFrame)
|
2013-09-09 19:48:37 +00:00
|
|
|
MCDwarfFrameEmitter::Emit(*this, MAB, usingCFI, false);
|
2011-05-10 03:14:15 +00:00
|
|
|
}
|
2011-05-22 04:15:07 +00:00
|
|
|
|
|
|
|
void MCStreamer::EmitW64Tables() {
|
|
|
|
if (!getNumW64UnwindInfos())
|
|
|
|
return;
|
|
|
|
|
|
|
|
MCWin64EHUnwindEmitter::Emit(*this);
|
|
|
|
}
|
2012-01-07 03:13:18 +00:00
|
|
|
|
|
|
|
void MCStreamer::Finish() {
|
|
|
|
if (!FrameInfos.empty() && !FrameInfos.back().End)
|
|
|
|
report_fatal_error("Unfinished frame!");
|
|
|
|
|
|
|
|
FinishImpl();
|
|
|
|
}
|
2013-02-19 21:57:35 +00:00
|
|
|
|
|
|
|
MCSymbolData &MCStreamer::getOrCreateSymbolData(MCSymbol *Symbol) {
|
|
|
|
report_fatal_error("Not supported!");
|
2013-03-18 23:08:01 +00:00
|
|
|
return *(static_cast<MCSymbolData*>(0));
|
2013-02-19 21:57:35 +00:00
|
|
|
}
|