MCStreamer.cpp revision 2fec6c5ff153786744ba7d0d302b73179731c5e9
1a11af531ec48ad84f790b9511f003ac5c934a999Daniel Dunbar//===- lib/MC/MCStreamer.cpp - Streaming Machine Code Output --------------===// 2a11af531ec48ad84f790b9511f003ac5c934a999Daniel Dunbar// 3a11af531ec48ad84f790b9511f003ac5c934a999Daniel Dunbar// The LLVM Compiler Infrastructure 4a11af531ec48ad84f790b9511f003ac5c934a999Daniel Dunbar// 5a11af531ec48ad84f790b9511f003ac5c934a999Daniel Dunbar// This file is distributed under the University of Illinois Open Source 6a11af531ec48ad84f790b9511f003ac5c934a999Daniel Dunbar// License. See LICENSE.TXT for details. 7a11af531ec48ad84f790b9511f003ac5c934a999Daniel Dunbar// 8a11af531ec48ad84f790b9511f003ac5c934a999Daniel Dunbar//===----------------------------------------------------------------------===// 9a11af531ec48ad84f790b9511f003ac5c934a999Daniel Dunbar 100bbe0b440ee2cef47dcb7b281825eb70341c16ddRafael Espindola#include "llvm/MC/MCAsmInfo.h" 11af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindola#include "llvm/MC/MCContext.h" 12a11af531ec48ad84f790b9511f003ac5c934a999Daniel Dunbar#include "llvm/MC/MCStreamer.h" 13ddf6bdde44287b5b559bc403a02ff971e15e8303Chris Lattner#include "llvm/MC/MCExpr.h" 14c095793b4ab027181605c79c9808df12afe45d63Kevin Enderby#include "llvm/MC/MCObjectWriter.h" 15ed708f9c1facb9928ef2f79503e7030c8f25b00dRafael Espindola#include "llvm/MC/MCSymbol.h" 16484291c27319668ad99cb87def000254357736fbRafael Espindola#include "llvm/Support/ErrorHandling.h" 17d79d9dce47d505369662ae5111dba24f9ccdef68Chris Lattner#include "llvm/Support/raw_ostream.h" 1858bc4dd4a91443ddd3120b0a2f1801ad4d6aae1cChris Lattner#include "llvm/ADT/SmallString.h" 192fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson#include "llvm/ADT/StringExtras.h" 2058bc4dd4a91443ddd3120b0a2f1801ad4d6aae1cChris Lattner#include "llvm/ADT/Twine.h" 213580dea910d622f2a6dbb72e97f5f7d0ef979542Chris Lattner#include <cstdlib> 22a11af531ec48ad84f790b9511f003ac5c934a999Daniel Dunbarusing namespace llvm; 23a11af531ec48ad84f790b9511f003ac5c934a999Daniel Dunbar 24f9efd83166401bca542c6702ea329f9901c4e04bRafael EspindolaMCStreamer::MCStreamer(MCContext &Ctx) : Context(Ctx), EmitEHFrame(true), 2540de0e013a456971697491b428fb903570e8766eCharles Davis EmitDebugFrame(false), 262df9f8df9541e7650876413cde555eb3d285be4bBenjamin Kramer CurrentW64UnwindInfo(0), 272fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson LastSymbol(0), 282fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson UniqueCodeBeginSuffix(0), 292fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson UniqueDataBeginSuffix(0) { 307d0805dcb82e9ba1d90ce8d702169683b9caded7Joerg Sonnenberger const MCSection *section = NULL; 317d0805dcb82e9ba1d90ce8d702169683b9caded7Joerg Sonnenberger SectionStack.push_back(std::make_pair(section, section)); 32a11af531ec48ad84f790b9511f003ac5c934a999Daniel Dunbar} 33a11af531ec48ad84f790b9511f003ac5c934a999Daniel Dunbar 34a11af531ec48ad84f790b9511f003ac5c934a999Daniel DunbarMCStreamer::~MCStreamer() { 354eeb7b662b78f5c520fb258b3f9df18b1227cde5Charles Davis for (unsigned i = 0; i < getNumW64UnwindInfos(); ++i) 364eeb7b662b78f5c520fb258b3f9df18b1227cde5Charles Davis delete W64UnwindInfos[i]; 37a11af531ec48ad84f790b9511f003ac5c934a999Daniel Dunbar} 38ddf6bdde44287b5b559bc403a02ff971e15e8303Chris Lattner 39a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindolaconst MCExpr *MCStreamer::BuildSymbolDiff(MCContext &Context, 40a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola const MCSymbol *A, 41a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola const MCSymbol *B) { 42a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola MCSymbolRefExpr::VariantKind Variant = MCSymbolRefExpr::VK_None; 43a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola const MCExpr *ARef = 44a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola MCSymbolRefExpr::Create(A, Variant, Context); 45a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola const MCExpr *BRef = 46a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola MCSymbolRefExpr::Create(B, Variant, Context); 47a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola const MCExpr *AddrDelta = 48a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola MCBinaryExpr::Create(MCBinaryExpr::Sub, ARef, BRef, Context); 49a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola return AddrDelta; 50a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola} 51a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola 52a6f2678f08299f053feb58337fc4322131d99bf4Rafael Espindolaconst MCExpr *MCStreamer::ForceExpAbs(const MCExpr* Expr) { 5378ff647e4471c88c3a3826e7ac24adcd8a9a2073Rafael Espindola if (Context.getAsmInfo().hasAggressiveSymbolFolding() || 5478ff647e4471c88c3a3826e7ac24adcd8a9a2073Rafael Espindola isa<MCSymbolRefExpr>(Expr)) 55a6f2678f08299f053feb58337fc4322131d99bf4Rafael Espindola return Expr; 56a6f2678f08299f053feb58337fc4322131d99bf4Rafael Espindola 57a6f2678f08299f053feb58337fc4322131d99bf4Rafael Espindola MCSymbol *ABS = Context.CreateTempSymbol(); 58a6f2678f08299f053feb58337fc4322131d99bf4Rafael Espindola EmitAssignment(ABS, Expr); 59a6f2678f08299f053feb58337fc4322131d99bf4Rafael Espindola return MCSymbolRefExpr::Create(ABS, Context); 60a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola} 61a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola 62d79d9dce47d505369662ae5111dba24f9ccdef68Chris Lattnerraw_ostream &MCStreamer::GetCommentOS() { 63d79d9dce47d505369662ae5111dba24f9ccdef68Chris Lattner // By default, discard comments. 64d79d9dce47d505369662ae5111dba24f9ccdef68Chris Lattner return nulls(); 65d79d9dce47d505369662ae5111dba24f9ccdef68Chris Lattner} 66d79d9dce47d505369662ae5111dba24f9ccdef68Chris Lattner 6732a006e606742b1c5401e49607e33717bb5441f0Rafael Espindolavoid MCStreamer::EmitDwarfSetLineAddr(int64_t LineDelta, 6832a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola const MCSymbol *Label, int PointerSize) { 6932a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola // emit the sequence to set the address 7032a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola EmitIntValue(dwarf::DW_LNS_extended_op, 1); 7132a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola EmitULEB128IntValue(PointerSize + 1); 7232a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola EmitIntValue(dwarf::DW_LNE_set_address, 1); 7332a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola EmitSymbolValue(Label, PointerSize); 7432a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola 7532a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola // emit the sequence for the LineDelta (from 1) and a zero address delta. 7632a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola MCDwarfLineAddr::Emit(this, LineDelta, 0); 7732a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola} 78d79d9dce47d505369662ae5111dba24f9ccdef68Chris Lattner 7932ae3fe0ba469240753e2342e36485f7c9acfb5cChris Lattner/// EmitIntValue - Special case of EmitValue that avoids the client having to 8032ae3fe0ba469240753e2342e36485f7c9acfb5cChris Lattner/// pass in a MCExpr for constant integers. 8132ae3fe0ba469240753e2342e36485f7c9acfb5cChris Lattnervoid MCStreamer::EmitIntValue(uint64_t Value, unsigned Size, 8232ae3fe0ba469240753e2342e36485f7c9acfb5cChris Lattner unsigned AddrSpace) { 83dea914bed9fb1d5c08e944557989ccddb6849000Devang Patel assert(Size <= 8 && "Invalid size"); 84818b5f5dd7979b097564f829896353df286127ffMatt Beaumont-Gay assert((isUIntN(8 * Size, Value) || isIntN(8 * Size, Value)) && 85818b5f5dd7979b097564f829896353df286127ffMatt Beaumont-Gay "Invalid size"); 862df042cb32ecb8d2e1d499dfa27d5074c8b40e13Rafael Espindola char buf[8]; 871be0e271a07925b928ba89848934f1ea6f1854e2Evan Cheng const bool isLittleEndian = Context.getAsmInfo().isLittleEndian(); 8865891533a3b35d7fc8fa807a96b7ee2f09ff22b5Roman Divacky for (unsigned i = 0; i != Size; ++i) { 8965891533a3b35d7fc8fa807a96b7ee2f09ff22b5Roman Divacky unsigned index = isLittleEndian ? i : (Size - i - 1); 9065891533a3b35d7fc8fa807a96b7ee2f09ff22b5Roman Divacky buf[i] = uint8_t(Value >> (index * 8)); 9165891533a3b35d7fc8fa807a96b7ee2f09ff22b5Roman Divacky } 922df042cb32ecb8d2e1d499dfa27d5074c8b40e13Rafael Espindola EmitBytes(StringRef(buf, Size), AddrSpace); 9332ae3fe0ba469240753e2342e36485f7c9acfb5cChris Lattner} 9432ae3fe0ba469240753e2342e36485f7c9acfb5cChris Lattner 953ff57094a7d176a759ddb1e1668489d89064f56cRafael Espindola/// EmitULEB128Value - Special case of EmitULEB128Value that avoids the 963ff57094a7d176a759ddb1e1668489d89064f56cRafael Espindola/// client having to pass in a MCExpr for constant integers. 973ff57094a7d176a759ddb1e1668489d89064f56cRafael Espindolavoid MCStreamer::EmitULEB128IntValue(uint64_t Value, unsigned AddrSpace) { 98660b5fc4d019bf22fbe14dfb81c5b59444fa3506Rafael Espindola SmallString<32> Tmp; 99660b5fc4d019bf22fbe14dfb81c5b59444fa3506Rafael Espindola raw_svector_ostream OSE(Tmp); 100660b5fc4d019bf22fbe14dfb81c5b59444fa3506Rafael Espindola MCObjectWriter::EncodeULEB128(Value, OSE); 101660b5fc4d019bf22fbe14dfb81c5b59444fa3506Rafael Espindola EmitBytes(OSE.str(), AddrSpace); 102c095793b4ab027181605c79c9808df12afe45d63Kevin Enderby} 103c095793b4ab027181605c79c9808df12afe45d63Kevin Enderby 1043ff57094a7d176a759ddb1e1668489d89064f56cRafael Espindola/// EmitSLEB128Value - Special case of EmitSLEB128Value that avoids the 1053ff57094a7d176a759ddb1e1668489d89064f56cRafael Espindola/// client having to pass in a MCExpr for constant integers. 1063ff57094a7d176a759ddb1e1668489d89064f56cRafael Espindolavoid MCStreamer::EmitSLEB128IntValue(int64_t Value, unsigned AddrSpace) { 107660b5fc4d019bf22fbe14dfb81c5b59444fa3506Rafael Espindola SmallString<32> Tmp; 108660b5fc4d019bf22fbe14dfb81c5b59444fa3506Rafael Espindola raw_svector_ostream OSE(Tmp); 109660b5fc4d019bf22fbe14dfb81c5b59444fa3506Rafael Espindola MCObjectWriter::EncodeSLEB128(Value, OSE); 110660b5fc4d019bf22fbe14dfb81c5b59444fa3506Rafael Espindola EmitBytes(OSE.str(), AddrSpace); 111c095793b4ab027181605c79c9808df12afe45d63Kevin Enderby} 112c095793b4ab027181605c79c9808df12afe45d63Kevin Enderby 1130bbe0b440ee2cef47dcb7b281825eb70341c16ddRafael Espindolavoid MCStreamer::EmitAbsValue(const MCExpr *Value, unsigned Size, 1140bbe0b440ee2cef47dcb7b281825eb70341c16ddRafael Espindola unsigned AddrSpace) { 115a6f2678f08299f053feb58337fc4322131d99bf4Rafael Espindola const MCExpr *ABS = ForceExpAbs(Value); 116a6f2678f08299f053feb58337fc4322131d99bf4Rafael Espindola EmitValue(ABS, Size, AddrSpace); 1170bbe0b440ee2cef47dcb7b281825eb70341c16ddRafael Espindola} 1180bbe0b440ee2cef47dcb7b281825eb70341c16ddRafael Espindola 11989b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola 12089b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindolavoid MCStreamer::EmitValue(const MCExpr *Value, unsigned Size, 12189b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola unsigned AddrSpace) { 122debd7e4e8bc5cfe61bfb71835ce2b1a3fbccc2beRafael Espindola EmitValueImpl(Value, Size, AddrSpace); 12389b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola} 12489b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola 12589b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindolavoid MCStreamer::EmitSymbolValue(const MCSymbol *Sym, unsigned Size, 126debd7e4e8bc5cfe61bfb71835ce2b1a3fbccc2beRafael Espindola unsigned AddrSpace) { 127debd7e4e8bc5cfe61bfb71835ce2b1a3fbccc2beRafael Espindola EmitValueImpl(MCSymbolRefExpr::Create(Sym, getContext()), Size, 12889b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola AddrSpace); 12989b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola} 13089b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola 1313e03211625bba5bbb70a193c140ebf4dd8388bb7Rafael Espindolavoid MCStreamer::EmitGPRel32Value(const MCExpr *Value) { 1323e03211625bba5bbb70a193c140ebf4dd8388bb7Rafael Espindola report_fatal_error("unsupported directive in streamer"); 1333e03211625bba5bbb70a193c140ebf4dd8388bb7Rafael Espindola} 1343e03211625bba5bbb70a193c140ebf4dd8388bb7Rafael Espindola 135ddf6bdde44287b5b559bc403a02ff971e15e8303Chris Lattner/// EmitFill - Emit NumBytes bytes worth of the value specified by 136ddf6bdde44287b5b559bc403a02ff971e15e8303Chris Lattner/// FillValue. This implements directives such as '.space'. 137aaec205b87637cd0d59d4f11630db603686eb73dChris Lattnervoid MCStreamer::EmitFill(uint64_t NumBytes, uint8_t FillValue, 138aaec205b87637cd0d59d4f11630db603686eb73dChris Lattner unsigned AddrSpace) { 139ddf6bdde44287b5b559bc403a02ff971e15e8303Chris Lattner const MCExpr *E = MCConstantExpr::Create(FillValue, getContext()); 140ddf6bdde44287b5b559bc403a02ff971e15e8303Chris Lattner for (uint64_t i = 0, e = NumBytes; i != e; ++i) 141aaec205b87637cd0d59d4f11630db603686eb73dChris Lattner EmitValue(E, 1, AddrSpace); 142ddf6bdde44287b5b559bc403a02ff971e15e8303Chris Lattner} 14391bead790518fcf5cb26019fb1ebf2372e8a5b3fChris Lattner 144af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindolabool MCStreamer::EmitDwarfFileDirective(unsigned FileNo, 145af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindola StringRef Filename) { 146af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindola return getContext().GetDwarfFile(Filename, FileNo) == 0; 147af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindola} 148af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindola 149af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindolavoid MCStreamer::EmitDwarfLocDirective(unsigned FileNo, unsigned Line, 150af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindola unsigned Column, unsigned Flags, 151af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindola unsigned Isa, 1523f3bf9387b75f4c932e4c59bd7af719d26ae4b99Devang Patel unsigned Discriminator, 1533f3bf9387b75f4c932e4c59bd7af719d26ae4b99Devang Patel StringRef FileName) { 154af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindola getContext().setCurrentDwarfLoc(FileNo, Line, Column, Flags, Isa, 155af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindola Discriminator); 156af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindola} 157af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindola 15889b9372605db2ce3b0085c84089e389f7bc1fbddRafael EspindolaMCDwarfFrameInfo *MCStreamer::getCurrentFrameInfo() { 15989b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola if (FrameInfos.empty()) 16089b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola return NULL; 16189b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola return &FrameInfos.back(); 16289b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola} 16389b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola 16489b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindolavoid MCStreamer::EnsureValidFrame() { 16589b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 16689b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola if (!CurFrame || CurFrame->End) 16789b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola report_fatal_error("No open frame"); 16889b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola} 16989b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola 1708bca4106dfc2945723251db10e340183f3e372ddRafael Espindolavoid MCStreamer::EmitEHSymAttributes(const MCSymbol *Symbol, 1718bca4106dfc2945723251db10e340183f3e372ddRafael Espindola MCSymbol *EHSymbol) { 1728bca4106dfc2945723251db10e340183f3e372ddRafael Espindola} 1738bca4106dfc2945723251db10e340183f3e372ddRafael Espindola 174ed708f9c1facb9928ef2f79503e7030c8f25b00dRafael Espindolavoid MCStreamer::EmitLabel(MCSymbol *Symbol) { 175ed708f9c1facb9928ef2f79503e7030c8f25b00dRafael Espindola assert(!Symbol->isVariable() && "Cannot emit a variable symbol!"); 176ed708f9c1facb9928ef2f79503e7030c8f25b00dRafael Espindola assert(getCurrentSection() && "Cannot emit before setting section!"); 177ed708f9c1facb9928ef2f79503e7030c8f25b00dRafael Espindola Symbol->setSection(*getCurrentSection()); 17849cb9b88867426d1a430f248550d3cc785a68fe4Rafael Espindola LastSymbol = Symbol; 179ed708f9c1facb9928ef2f79503e7030c8f25b00dRafael Espindola} 180ed708f9c1facb9928ef2f79503e7030c8f25b00dRafael Espindola 1812fec6c5ff153786744ba7d0d302b73179731c5e9Owen Andersonvoid MCStreamer::EmitDataRegion() { 1822fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson if (RegionIndicator == Data) return; 1832fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson 1842fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson MCContext &Context = getContext(); 1852fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson const MCAsmInfo &MAI = Context.getAsmInfo(); 1862fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson if (!MAI.getSupportsDataRegions()) return; 1872fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson 1882fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson // Generate a unique symbol name. 1892fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson MCSymbol *NewSym = Context.GetOrCreateSymbol( 1902fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson Twine(MAI.getDataBeginLabelName()) + 1912fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson utostr(UniqueDataBeginSuffix++)); 1922fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson EmitLabel(NewSym); 1932fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson 1942fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson RegionIndicator = Data; 1952fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson} 1962fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson 1972fec6c5ff153786744ba7d0d302b73179731c5e9Owen Andersonvoid MCStreamer::EmitCodeRegion() { 1982fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson if (RegionIndicator == Code) return; 1992fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson 2002fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson MCContext &Context = getContext(); 2012fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson const MCAsmInfo &MAI = Context.getAsmInfo(); 2022fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson if (!MAI.getSupportsDataRegions()) return; 2032fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson 2042fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson // Generate a unique symbol name. 2052fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson MCSymbol *NewSym = Context.GetOrCreateSymbol( 2062fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson Twine(MAI.getCodeBeginLabelName()) + 2072fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson utostr(UniqueCodeBeginSuffix++)); 2082fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson EmitLabel(NewSym); 2092fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson 2102fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson RegionIndicator = Code; 2112fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson} 2122fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson 2132fec6c5ff153786744ba7d0d302b73179731c5e9Owen Andersonvoid MCStreamer::EmitJumpTable8Region() { 2142fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson if (RegionIndicator == JumpTable8) return; 2152fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson 2162fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson MCContext &Context = getContext(); 2172fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson const MCAsmInfo &MAI = Context.getAsmInfo(); 2182fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson if (!MAI.getSupportsDataRegions()) return; 2192fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson 2202fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson // Generate a unique symbol name. 2212fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson MCSymbol *NewSym = Context.GetOrCreateSymbol( 2222fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson Twine(MAI.getJumpTable8BeginLabelName()) + 2232fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson utostr(UniqueDataBeginSuffix++)); 2242fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson EmitLabel(NewSym); 2252fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson 2262fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson RegionIndicator = JumpTable8; 2272fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson} 2282fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson 2292fec6c5ff153786744ba7d0d302b73179731c5e9Owen Andersonvoid MCStreamer::EmitJumpTable16Region() { 2302fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson if (RegionIndicator == JumpTable16) return; 2312fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson 2322fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson MCContext &Context = getContext(); 2332fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson const MCAsmInfo &MAI = Context.getAsmInfo(); 2342fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson if (!MAI.getSupportsDataRegions()) return; 2352fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson 2362fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson // Generate a unique symbol name. 2372fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson MCSymbol *NewSym = Context.GetOrCreateSymbol( 2382fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson Twine(MAI.getJumpTable16BeginLabelName()) + 2392fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson utostr(UniqueDataBeginSuffix++)); 2402fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson EmitLabel(NewSym); 2412fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson 2422fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson RegionIndicator = JumpTable16; 2432fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson} 2442fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson 2452fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson 2462fec6c5ff153786744ba7d0d302b73179731c5e9Owen Andersonvoid MCStreamer::EmitJumpTable32Region() { 2472fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson if (RegionIndicator == JumpTable32) return; 2482fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson 2492fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson MCContext &Context = getContext(); 2502fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson const MCAsmInfo &MAI = Context.getAsmInfo(); 2512fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson if (!MAI.getSupportsDataRegions()) return; 2522fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson 2532fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson // Generate a unique symbol name. 2542fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson MCSymbol *NewSym = Context.GetOrCreateSymbol( 2552fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson Twine(MAI.getJumpTable32BeginLabelName()) + 2562fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson utostr(UniqueDataBeginSuffix++)); 2572fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson EmitLabel(NewSym); 2582fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson 2592fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson RegionIndicator = JumpTable32; 2602fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson} 2612fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson 262d967578a8c506be341d20a1558eebb31484b8b6dBill Wendlingvoid MCStreamer::EmitCompactUnwindEncoding(uint32_t CompactUnwindEncoding) { 263d967578a8c506be341d20a1558eebb31484b8b6dBill Wendling EnsureValidFrame(); 264d967578a8c506be341d20a1558eebb31484b8b6dBill Wendling MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 265d967578a8c506be341d20a1558eebb31484b8b6dBill Wendling CurFrame->CompactUnwindEncoding = CompactUnwindEncoding; 266d967578a8c506be341d20a1558eebb31484b8b6dBill Wendling} 267d967578a8c506be341d20a1558eebb31484b8b6dBill Wendling 268f9efd83166401bca542c6702ea329f9901c4e04bRafael Espindolavoid MCStreamer::EmitCFISections(bool EH, bool Debug) { 269713c4bfc36260bfc9273d414b14757bd7819f9b1Rafael Espindola assert(EH || Debug); 270f9efd83166401bca542c6702ea329f9901c4e04bRafael Espindola EmitEHFrame = EH; 271f9efd83166401bca542c6702ea329f9901c4e04bRafael Espindola EmitDebugFrame = Debug; 272f9efd83166401bca542c6702ea329f9901c4e04bRafael Espindola} 273f9efd83166401bca542c6702ea329f9901c4e04bRafael Espindola 274066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindolavoid MCStreamer::EmitCFIStartProc() { 27589b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 276066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindola if (CurFrame && !CurFrame->End) 27789b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola report_fatal_error("Starting a frame before finishing the previous one!"); 27849cb9b88867426d1a430f248550d3cc785a68fe4Rafael Espindola 2795fbe5e783ee0c5ae27c17490a752d7e603e84ed2Evan Cheng MCDwarfFrameInfo Frame; 28049cb9b88867426d1a430f248550d3cc785a68fe4Rafael Espindola Frame.Function = LastSymbol; 28149cb9b88867426d1a430f248550d3cc785a68fe4Rafael Espindola 28249cb9b88867426d1a430f248550d3cc785a68fe4Rafael Espindola // If the function is externally visible, we need to create a local 28349cb9b88867426d1a430f248550d3cc785a68fe4Rafael Espindola // symbol to avoid relocations. 28449cb9b88867426d1a430f248550d3cc785a68fe4Rafael Espindola StringRef Prefix = getContext().getAsmInfo().getPrivateGlobalPrefix(); 2855fbe5e783ee0c5ae27c17490a752d7e603e84ed2Evan Cheng if (LastSymbol && LastSymbol->getName().startswith(Prefix)) { 28649cb9b88867426d1a430f248550d3cc785a68fe4Rafael Espindola Frame.Begin = LastSymbol; 28749cb9b88867426d1a430f248550d3cc785a68fe4Rafael Espindola } else { 28849cb9b88867426d1a430f248550d3cc785a68fe4Rafael Espindola Frame.Begin = getContext().CreateTempSymbol(); 28949cb9b88867426d1a430f248550d3cc785a68fe4Rafael Espindola EmitLabel(Frame.Begin); 29049cb9b88867426d1a430f248550d3cc785a68fe4Rafael Espindola } 29149cb9b88867426d1a430f248550d3cc785a68fe4Rafael Espindola 29289b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola FrameInfos.push_back(Frame); 2932fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson RegionIndicator = Code; 294cdfecc8759941c2996214070478d30084b79d463Rafael Espindola} 295cdfecc8759941c2996214070478d30084b79d463Rafael Espindola 296066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindolavoid MCStreamer::EmitCFIEndProc() { 29789b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola EnsureValidFrame(); 29889b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 29989b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola CurFrame->End = getContext().CreateTempSymbol(); 30089b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola EmitLabel(CurFrame->End); 301cdfecc8759941c2996214070478d30084b79d463Rafael Espindola} 302cdfecc8759941c2996214070478d30084b79d463Rafael Espindola 303066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindolavoid MCStreamer::EmitCFIDefCfa(int64_t Register, int64_t Offset) { 304b40a71fda188f8ca564e606ac2cb051a44ada311Rafael Espindola EnsureValidFrame(); 305b40a71fda188f8ca564e606ac2cb051a44ada311Rafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 306b40a71fda188f8ca564e606ac2cb051a44ada311Rafael Espindola MCSymbol *Label = getContext().CreateTempSymbol(); 307b40a71fda188f8ca564e606ac2cb051a44ada311Rafael Espindola EmitLabel(Label); 308b40a71fda188f8ca564e606ac2cb051a44ada311Rafael Espindola MachineLocation Dest(MachineLocation::VirtualFP); 309b40a71fda188f8ca564e606ac2cb051a44ada311Rafael Espindola MachineLocation Source(Register, -Offset); 310b40a71fda188f8ca564e606ac2cb051a44ada311Rafael Espindola MCCFIInstruction Instruction(Label, Dest, Source); 311b40a71fda188f8ca564e606ac2cb051a44ada311Rafael Espindola CurFrame->Instructions.push_back(Instruction); 312b40a71fda188f8ca564e606ac2cb051a44ada311Rafael Espindola} 313b40a71fda188f8ca564e606ac2cb051a44ada311Rafael Espindola 314066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindolavoid MCStreamer::EmitCFIDefCfaOffset(int64_t Offset) { 31589b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola EnsureValidFrame(); 3165bba08425374ca36fe5fbc7423ce1a09858e4097Rafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 3175bba08425374ca36fe5fbc7423ce1a09858e4097Rafael Espindola MCSymbol *Label = getContext().CreateTempSymbol(); 3185bba08425374ca36fe5fbc7423ce1a09858e4097Rafael Espindola EmitLabel(Label); 3195bba08425374ca36fe5fbc7423ce1a09858e4097Rafael Espindola MachineLocation Dest(MachineLocation::VirtualFP); 3205bba08425374ca36fe5fbc7423ce1a09858e4097Rafael Espindola MachineLocation Source(MachineLocation::VirtualFP, -Offset); 321fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola MCCFIInstruction Instruction(Label, Dest, Source); 322fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola CurFrame->Instructions.push_back(Instruction); 323cdfecc8759941c2996214070478d30084b79d463Rafael Espindola} 324cdfecc8759941c2996214070478d30084b79d463Rafael Espindola 3255d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962Rafael Espindolavoid MCStreamer::EmitCFIAdjustCfaOffset(int64_t Adjustment) { 3265d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962Rafael Espindola EnsureValidFrame(); 3275d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962Rafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 3285d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962Rafael Espindola MCSymbol *Label = getContext().CreateTempSymbol(); 3295d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962Rafael Espindola EmitLabel(Label); 3305d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962Rafael Espindola MachineLocation Dest(MachineLocation::VirtualFP); 3315d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962Rafael Espindola MachineLocation Source(MachineLocation::VirtualFP, Adjustment); 3325d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962Rafael Espindola MCCFIInstruction Instruction(MCCFIInstruction::RelMove, Label, Dest, Source); 3335d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962Rafael Espindola CurFrame->Instructions.push_back(Instruction); 3345d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962Rafael Espindola} 3355d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962Rafael Espindola 336066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindolavoid MCStreamer::EmitCFIDefCfaRegister(int64_t Register) { 33789b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola EnsureValidFrame(); 338b4601bd2ffdde372f1323f6b6ec98acd433501ceRafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 339b4601bd2ffdde372f1323f6b6ec98acd433501ceRafael Espindola MCSymbol *Label = getContext().CreateTempSymbol(); 340b4601bd2ffdde372f1323f6b6ec98acd433501ceRafael Espindola EmitLabel(Label); 341b4601bd2ffdde372f1323f6b6ec98acd433501ceRafael Espindola MachineLocation Dest(Register); 342b4601bd2ffdde372f1323f6b6ec98acd433501ceRafael Espindola MachineLocation Source(MachineLocation::VirtualFP); 343b4601bd2ffdde372f1323f6b6ec98acd433501ceRafael Espindola MCCFIInstruction Instruction(Label, Dest, Source); 344b4601bd2ffdde372f1323f6b6ec98acd433501ceRafael Espindola CurFrame->Instructions.push_back(Instruction); 345cdfecc8759941c2996214070478d30084b79d463Rafael Espindola} 346cdfecc8759941c2996214070478d30084b79d463Rafael Espindola 347066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindolavoid MCStreamer::EmitCFIOffset(int64_t Register, int64_t Offset) { 34889b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola EnsureValidFrame(); 349b790a17efba26f4365b5ffb847dd53fde063c48dRafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 350b790a17efba26f4365b5ffb847dd53fde063c48dRafael Espindola MCSymbol *Label = getContext().CreateTempSymbol(); 351b790a17efba26f4365b5ffb847dd53fde063c48dRafael Espindola EmitLabel(Label); 352b790a17efba26f4365b5ffb847dd53fde063c48dRafael Espindola MachineLocation Dest(Register, Offset); 353b790a17efba26f4365b5ffb847dd53fde063c48dRafael Espindola MachineLocation Source(Register, Offset); 354b790a17efba26f4365b5ffb847dd53fde063c48dRafael Espindola MCCFIInstruction Instruction(Label, Dest, Source); 355b790a17efba26f4365b5ffb847dd53fde063c48dRafael Espindola CurFrame->Instructions.push_back(Instruction); 356cdfecc8759941c2996214070478d30084b79d463Rafael Espindola} 357cdfecc8759941c2996214070478d30084b79d463Rafael Espindola 35825f492e77858dc5a95fcd7180e73aff47925b668Rafael Espindolavoid MCStreamer::EmitCFIRelOffset(int64_t Register, int64_t Offset) { 35925f492e77858dc5a95fcd7180e73aff47925b668Rafael Espindola EnsureValidFrame(); 36025f492e77858dc5a95fcd7180e73aff47925b668Rafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 36125f492e77858dc5a95fcd7180e73aff47925b668Rafael Espindola MCSymbol *Label = getContext().CreateTempSymbol(); 36225f492e77858dc5a95fcd7180e73aff47925b668Rafael Espindola EmitLabel(Label); 36325f492e77858dc5a95fcd7180e73aff47925b668Rafael Espindola MachineLocation Dest(Register, Offset); 36425f492e77858dc5a95fcd7180e73aff47925b668Rafael Espindola MachineLocation Source(Register, Offset); 36525f492e77858dc5a95fcd7180e73aff47925b668Rafael Espindola MCCFIInstruction Instruction(MCCFIInstruction::RelMove, Label, Dest, Source); 36625f492e77858dc5a95fcd7180e73aff47925b668Rafael Espindola CurFrame->Instructions.push_back(Instruction); 36725f492e77858dc5a95fcd7180e73aff47925b668Rafael Espindola} 36825f492e77858dc5a95fcd7180e73aff47925b668Rafael Espindola 369066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindolavoid MCStreamer::EmitCFIPersonality(const MCSymbol *Sym, 3703a83c40ab61d5ca624f2bbadd70237c6adbdb304Rafael Espindola unsigned Encoding) { 37189b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola EnsureValidFrame(); 37289b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 37389b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola CurFrame->Personality = Sym; 3743a83c40ab61d5ca624f2bbadd70237c6adbdb304Rafael Espindola CurFrame->PersonalityEncoding = Encoding; 375cdfecc8759941c2996214070478d30084b79d463Rafael Espindola} 376cdfecc8759941c2996214070478d30084b79d463Rafael Espindola 377066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindolavoid MCStreamer::EmitCFILsda(const MCSymbol *Sym, unsigned Encoding) { 37889b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola EnsureValidFrame(); 37989b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 38089b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola CurFrame->Lsda = Sym; 381bdc3167c086dd4358e24692075db5e7784140843Rafael Espindola CurFrame->LsdaEncoding = Encoding; 382cdfecc8759941c2996214070478d30084b79d463Rafael Espindola} 383cdfecc8759941c2996214070478d30084b79d463Rafael Espindola 384066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindolavoid MCStreamer::EmitCFIRememberState() { 385fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola EnsureValidFrame(); 386fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 387fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola MCSymbol *Label = getContext().CreateTempSymbol(); 388fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola EmitLabel(Label); 389fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola MCCFIInstruction Instruction(MCCFIInstruction::Remember, Label); 390fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola CurFrame->Instructions.push_back(Instruction); 391fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola} 392fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola 393066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindolavoid MCStreamer::EmitCFIRestoreState() { 394fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola // FIXME: Error if there is no matching cfi_remember_state. 395fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola EnsureValidFrame(); 396fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 397fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola MCSymbol *Label = getContext().CreateTempSymbol(); 398fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola EmitLabel(Label); 399fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola MCCFIInstruction Instruction(MCCFIInstruction::Restore, Label); 400fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola CurFrame->Instructions.push_back(Instruction); 401fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola} 402fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola 403c57543964d1382d3d3a5005f415b6c0f49671b3aRafael Espindolavoid MCStreamer::EmitCFISameValue(int64_t Register) { 404c57543964d1382d3d3a5005f415b6c0f49671b3aRafael Espindola EnsureValidFrame(); 405c57543964d1382d3d3a5005f415b6c0f49671b3aRafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 406c57543964d1382d3d3a5005f415b6c0f49671b3aRafael Espindola MCSymbol *Label = getContext().CreateTempSymbol(); 407c57543964d1382d3d3a5005f415b6c0f49671b3aRafael Espindola EmitLabel(Label); 408c57543964d1382d3d3a5005f415b6c0f49671b3aRafael Espindola MCCFIInstruction Instruction(MCCFIInstruction::SameValue, Label, Register); 409c57543964d1382d3d3a5005f415b6c0f49671b3aRafael Espindola CurFrame->Instructions.push_back(Instruction); 410c57543964d1382d3d3a5005f415b6c0f49671b3aRafael Espindola} 411c57543964d1382d3d3a5005f415b6c0f49671b3aRafael Espindola 41291d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davisvoid MCStreamer::setCurrentW64UnwindInfo(MCWin64EHUnwindInfo *Frame) { 413ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis W64UnwindInfos.push_back(Frame); 414ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis CurrentW64UnwindInfo = W64UnwindInfos.back(); 4159c77398d1c89f615735d304cd7eda3c3e9b1504fCharles Davis} 4169c77398d1c89f615735d304cd7eda3c3e9b1504fCharles Davis 4170855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davisvoid MCStreamer::EnsureValidW64UnwindInfo() { 41891d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 4190855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis if (!CurFrame || CurFrame->End) 4200855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis report_fatal_error("No open Win64 EH frame function!"); 4210855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis} 4220855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis 423fbc539ff37ddd08c2480be9185e7a40919ce8940Charles Davisvoid MCStreamer::EmitWin64EHStartProc(const MCSymbol *Symbol) { 42491d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 4250855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis if (CurFrame && !CurFrame->End) 4260855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis report_fatal_error("Starting a function before ending the previous one!"); 4274eeb7b662b78f5c520fb258b3f9df18b1227cde5Charles Davis MCWin64EHUnwindInfo *Frame = new MCWin64EHUnwindInfo; 428ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis Frame->Begin = getContext().CreateTempSymbol(); 429ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis Frame->Function = Symbol; 430ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis EmitLabel(Frame->Begin); 431ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis setCurrentW64UnwindInfo(Frame); 4320855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis} 4330855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis 4340855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davisvoid MCStreamer::EmitWin64EHEndProc() { 4350855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis EnsureValidW64UnwindInfo(); 43691d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 43791d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis if (CurFrame->ChainedParent) 4380855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis report_fatal_error("Not all chained regions terminated!"); 4390855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis CurFrame->End = getContext().CreateTempSymbol(); 4400855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis EmitLabel(CurFrame->End); 441ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis} 442ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis 443440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davisvoid MCStreamer::EmitWin64EHStartChained() { 44491d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis EnsureValidW64UnwindInfo(); 4454eeb7b662b78f5c520fb258b3f9df18b1227cde5Charles Davis MCWin64EHUnwindInfo *Frame = new MCWin64EHUnwindInfo; 44691d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 447ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis Frame->Begin = getContext().CreateTempSymbol(); 448ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis Frame->Function = CurFrame->Function; 449ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis Frame->ChainedParent = CurFrame; 450ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis EmitLabel(Frame->Begin); 451ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis setCurrentW64UnwindInfo(Frame); 452f07090134d06e0cf3508e8b8e87d775f0a7982c1Charles Davis} 453f07090134d06e0cf3508e8b8e87d775f0a7982c1Charles Davis 454440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davisvoid MCStreamer::EmitWin64EHEndChained() { 45591d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis EnsureValidW64UnwindInfo(); 45691d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 45791d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis if (!CurFrame->ChainedParent) 45891d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis report_fatal_error("End of a chained region outside a chained region!"); 45991d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis CurFrame->End = getContext().CreateTempSymbol(); 46091d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis EmitLabel(CurFrame->End); 46191d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis CurrentW64UnwindInfo = CurFrame->ChainedParent; 462f07090134d06e0cf3508e8b8e87d775f0a7982c1Charles Davis} 463f07090134d06e0cf3508e8b8e87d775f0a7982c1Charles Davis 464440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davisvoid MCStreamer::EmitWin64EHHandler(const MCSymbol *Sym, bool Unwind, 465440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davis bool Except) { 466440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davis EnsureValidW64UnwindInfo(); 467440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 46881f3830f2ed0b26e8bd7ae62e127db427f9f350dCharles Davis if (CurFrame->ChainedParent) 46981f3830f2ed0b26e8bd7ae62e127db427f9f350dCharles Davis report_fatal_error("Chained unwind areas can't have handlers!"); 470440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davis CurFrame->ExceptionHandler = Sym; 471321fe74b2d40d7762175fbd3054fda00b5e70833Charles Davis if (!Except && !Unwind) 472440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davis report_fatal_error("Don't know what kind of handler this is!"); 473321fe74b2d40d7762175fbd3054fda00b5e70833Charles Davis if (Unwind) 474321fe74b2d40d7762175fbd3054fda00b5e70833Charles Davis CurFrame->HandlesUnwind = true; 475321fe74b2d40d7762175fbd3054fda00b5e70833Charles Davis if (Except) 476321fe74b2d40d7762175fbd3054fda00b5e70833Charles Davis CurFrame->HandlesExceptions = true; 477440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davis} 478440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davis 479440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davisvoid MCStreamer::EmitWin64EHHandlerData() { 480d0b76d00048352affac4fad0ef005e28f5340b76Charles Davis EnsureValidW64UnwindInfo(); 48181f3830f2ed0b26e8bd7ae62e127db427f9f350dCharles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 48281f3830f2ed0b26e8bd7ae62e127db427f9f350dCharles Davis if (CurFrame->ChainedParent) 48381f3830f2ed0b26e8bd7ae62e127db427f9f350dCharles Davis report_fatal_error("Chained unwind areas can't have handlers!"); 484f07090134d06e0cf3508e8b8e87d775f0a7982c1Charles Davis} 485f07090134d06e0cf3508e8b8e87d775f0a7982c1Charles Davis 486c3b162857a587c9877e903f038471b882b213232Charles Davisvoid MCStreamer::EmitWin64EHPushReg(unsigned Register) { 487c3b162857a587c9877e903f038471b882b213232Charles Davis EnsureValidW64UnwindInfo(); 488c3b162857a587c9877e903f038471b882b213232Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 489c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis MCSymbol *Label = getContext().CreateTempSymbol(); 490c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis MCWin64EHInstruction Inst(Win64EH::UOP_PushNonVol, Label, Register); 491c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis EmitLabel(Label); 492c3b162857a587c9877e903f038471b882b213232Charles Davis CurFrame->Instructions.push_back(Inst); 493f07090134d06e0cf3508e8b8e87d775f0a7982c1Charles Davis} 494f07090134d06e0cf3508e8b8e87d775f0a7982c1Charles Davis 495c3b162857a587c9877e903f038471b882b213232Charles Davisvoid MCStreamer::EmitWin64EHSetFrame(unsigned Register, unsigned Offset) { 496c3b162857a587c9877e903f038471b882b213232Charles Davis EnsureValidW64UnwindInfo(); 497c2d3022aa6104a21f4368c522ccbf9a4d282b7c6Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 498c2d3022aa6104a21f4368c522ccbf9a4d282b7c6Charles Davis if (CurFrame->LastFrameInst >= 0) 499c2d3022aa6104a21f4368c522ccbf9a4d282b7c6Charles Davis report_fatal_error("Frame register and offset already specified!"); 500edeecbff0e231c04b7222a79a26017a48668f0e2Charles Davis if (Offset & 0x0F) 501edeecbff0e231c04b7222a79a26017a48668f0e2Charles Davis report_fatal_error("Misaligned frame pointer offset!"); 502c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis MCWin64EHInstruction Inst(Win64EH::UOP_SetFPReg, NULL, Register, Offset); 5035c2256a5719172273eaef198f92d8af924ff8623Charles Davis CurFrame->LastFrameInst = CurFrame->Instructions.size(); 504c3b162857a587c9877e903f038471b882b213232Charles Davis CurFrame->Instructions.push_back(Inst); 505ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis} 506ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis 507c3b162857a587c9877e903f038471b882b213232Charles Davisvoid MCStreamer::EmitWin64EHAllocStack(unsigned Size) { 508c3b162857a587c9877e903f038471b882b213232Charles Davis EnsureValidW64UnwindInfo(); 509edeecbff0e231c04b7222a79a26017a48668f0e2Charles Davis if (Size & 7) 510edeecbff0e231c04b7222a79a26017a48668f0e2Charles Davis report_fatal_error("Misaligned stack allocation!"); 511c3b162857a587c9877e903f038471b882b213232Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 512c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis MCSymbol *Label = getContext().CreateTempSymbol(); 513c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis MCWin64EHInstruction Inst(Label, Size); 514c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis EmitLabel(Label); 515c3b162857a587c9877e903f038471b882b213232Charles Davis CurFrame->Instructions.push_back(Inst); 516ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis} 517ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis 518c3b162857a587c9877e903f038471b882b213232Charles Davisvoid MCStreamer::EmitWin64EHSaveReg(unsigned Register, unsigned Offset) { 519c3b162857a587c9877e903f038471b882b213232Charles Davis EnsureValidW64UnwindInfo(); 520edeecbff0e231c04b7222a79a26017a48668f0e2Charles Davis if (Offset & 7) 521edeecbff0e231c04b7222a79a26017a48668f0e2Charles Davis report_fatal_error("Misaligned saved register offset!"); 522c3b162857a587c9877e903f038471b882b213232Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 523c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis MCSymbol *Label = getContext().CreateTempSymbol(); 524c3b162857a587c9877e903f038471b882b213232Charles Davis MCWin64EHInstruction Inst( 525c2d3022aa6104a21f4368c522ccbf9a4d282b7c6Charles Davis Offset > 512*1024-8 ? Win64EH::UOP_SaveNonVolBig : Win64EH::UOP_SaveNonVol, 526c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis Label, Register, Offset); 527c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis EmitLabel(Label); 528c3b162857a587c9877e903f038471b882b213232Charles Davis CurFrame->Instructions.push_back(Inst); 529ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis} 530ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis 531c3b162857a587c9877e903f038471b882b213232Charles Davisvoid MCStreamer::EmitWin64EHSaveXMM(unsigned Register, unsigned Offset) { 532c3b162857a587c9877e903f038471b882b213232Charles Davis EnsureValidW64UnwindInfo(); 533edeecbff0e231c04b7222a79a26017a48668f0e2Charles Davis if (Offset & 0x0F) 534edeecbff0e231c04b7222a79a26017a48668f0e2Charles Davis report_fatal_error("Misaligned saved vector register offset!"); 535c3b162857a587c9877e903f038471b882b213232Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 536c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis MCSymbol *Label = getContext().CreateTempSymbol(); 537c3b162857a587c9877e903f038471b882b213232Charles Davis MCWin64EHInstruction Inst( 538c2d3022aa6104a21f4368c522ccbf9a4d282b7c6Charles Davis Offset > 512*1024-16 ? Win64EH::UOP_SaveXMM128Big : Win64EH::UOP_SaveXMM128, 539c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis Label, Register, Offset); 540c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis EmitLabel(Label); 541c3b162857a587c9877e903f038471b882b213232Charles Davis CurFrame->Instructions.push_back(Inst); 542ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis} 543ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis 544440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davisvoid MCStreamer::EmitWin64EHPushFrame(bool Code) { 545c3b162857a587c9877e903f038471b882b213232Charles Davis EnsureValidW64UnwindInfo(); 546c3b162857a587c9877e903f038471b882b213232Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 547c2d3022aa6104a21f4368c522ccbf9a4d282b7c6Charles Davis if (CurFrame->Instructions.size() > 0) 548c2d3022aa6104a21f4368c522ccbf9a4d282b7c6Charles Davis report_fatal_error("If present, PushMachFrame must be the first UOP"); 549c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis MCSymbol *Label = getContext().CreateTempSymbol(); 550c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis MCWin64EHInstruction Inst(Win64EH::UOP_PushMachFrame, Label, Code); 551c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis EmitLabel(Label); 552c3b162857a587c9877e903f038471b882b213232Charles Davis CurFrame->Instructions.push_back(Inst); 553ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis} 554ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis 555440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davisvoid MCStreamer::EmitWin64EHEndProlog() { 55661558aaf4f924fd44fd2f275fcb7ab7199ede304Charles Davis EnsureValidW64UnwindInfo(); 55761558aaf4f924fd44fd2f275fcb7ab7199ede304Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 55861558aaf4f924fd44fd2f275fcb7ab7199ede304Charles Davis CurFrame->PrologEnd = getContext().CreateTempSymbol(); 55961558aaf4f924fd44fd2f275fcb7ab7199ede304Charles Davis EmitLabel(CurFrame->PrologEnd); 560cacdc4fc41f035c149d5f1b92acd587d475ffd58Charles Davis} 561cacdc4fc41f035c149d5f1b92acd587d475ffd58Charles Davis 562b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikovvoid MCStreamer::EmitFnStart() { 563b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov errs() << "Not implemented yet\n"; 564b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov abort(); 565b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov} 566b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov 567b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikovvoid MCStreamer::EmitFnEnd() { 568b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov errs() << "Not implemented yet\n"; 569b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov abort(); 570b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov} 571b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov 572b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikovvoid MCStreamer::EmitCantUnwind() { 573b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov errs() << "Not implemented yet\n"; 574b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov abort(); 575b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov} 576b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov 577b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikovvoid MCStreamer::EmitHandlerData() { 578b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov errs() << "Not implemented yet\n"; 579b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov abort(); 580b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov} 581b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov 582b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikovvoid MCStreamer::EmitPersonality(const MCSymbol *Personality) { 583b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov errs() << "Not implemented yet\n"; 584b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov abort(); 585b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov} 586b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov 58757caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikovvoid MCStreamer::EmitSetFP(unsigned FpReg, unsigned SpReg, int64_t Offset) { 58857caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov errs() << "Not implemented yet\n"; 58957caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov abort(); 59057caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov} 59157caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov 59257caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikovvoid MCStreamer::EmitPad(int64_t Offset) { 59357caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov errs() << "Not implemented yet\n"; 59457caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov abort(); 59557caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov} 59657caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov 59757caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikovvoid MCStreamer::EmitRegSave(const SmallVectorImpl<unsigned> &RegList, bool) { 59857caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov errs() << "Not implemented yet\n"; 59957caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov abort(); 60057caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov} 60157caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov 602ab3b3651add0915a5a051b177029ad117a877f52Matt Fleming/// EmitRawText - If this file is backed by an assembly streamer, this dumps 60391bead790518fcf5cb26019fb1ebf2372e8a5b3fChris Lattner/// the specified string in the output .s file. This capability is 60491bead790518fcf5cb26019fb1ebf2372e8a5b3fChris Lattner/// indicated by the hasRawTextSupport() predicate. 60591bead790518fcf5cb26019fb1ebf2372e8a5b3fChris Lattnervoid MCStreamer::EmitRawText(StringRef String) { 60691bead790518fcf5cb26019fb1ebf2372e8a5b3fChris Lattner errs() << "EmitRawText called on an MCStreamer that doesn't support it, " 60791bead790518fcf5cb26019fb1ebf2372e8a5b3fChris Lattner " something must not be fully mc'ized\n"; 60891bead790518fcf5cb26019fb1ebf2372e8a5b3fChris Lattner abort(); 60991bead790518fcf5cb26019fb1ebf2372e8a5b3fChris Lattner} 61058bc4dd4a91443ddd3120b0a2f1801ad4d6aae1cChris Lattner 61158bc4dd4a91443ddd3120b0a2f1801ad4d6aae1cChris Lattnervoid MCStreamer::EmitRawText(const Twine &T) { 61258bc4dd4a91443ddd3120b0a2f1801ad4d6aae1cChris Lattner SmallString<128> Str; 61358bc4dd4a91443ddd3120b0a2f1801ad4d6aae1cChris Lattner T.toVector(Str); 61458bc4dd4a91443ddd3120b0a2f1801ad4d6aae1cChris Lattner EmitRawText(Str.str()); 61558bc4dd4a91443ddd3120b0a2f1801ad4d6aae1cChris Lattner} 616c25dad8750083829d9a8935ce40d0734e5488f8eRafael Espindola 617c25dad8750083829d9a8935ce40d0734e5488f8eRafael Espindolavoid MCStreamer::EmitFrames(bool usingCFI) { 618c25dad8750083829d9a8935ce40d0734e5488f8eRafael Espindola if (!getNumFrameInfos()) 619c25dad8750083829d9a8935ce40d0734e5488f8eRafael Espindola return; 620c25dad8750083829d9a8935ce40d0734e5488f8eRafael Espindola 621c25dad8750083829d9a8935ce40d0734e5488f8eRafael Espindola if (EmitEHFrame) 62240a7dbbeff44c4cbd8c7e4f07f28dd614f8a5d08Rafael Espindola MCDwarfFrameEmitter::Emit(*this, usingCFI, true); 62340a7dbbeff44c4cbd8c7e4f07f28dd614f8a5d08Rafael Espindola 62440a7dbbeff44c4cbd8c7e4f07f28dd614f8a5d08Rafael Espindola if (EmitDebugFrame) 62540a7dbbeff44c4cbd8c7e4f07f28dd614f8a5d08Rafael Espindola MCDwarfFrameEmitter::Emit(*this, usingCFI, false); 626c25dad8750083829d9a8935ce40d0734e5488f8eRafael Espindola} 62738ea9eecd7c810e11f96c8306b241f9db88fc62fCharles Davis 62838ea9eecd7c810e11f96c8306b241f9db88fc62fCharles Davisvoid MCStreamer::EmitW64Tables() { 62938ea9eecd7c810e11f96c8306b241f9db88fc62fCharles Davis if (!getNumW64UnwindInfos()) 63038ea9eecd7c810e11f96c8306b241f9db88fc62fCharles Davis return; 63138ea9eecd7c810e11f96c8306b241f9db88fc62fCharles Davis 63238ea9eecd7c810e11f96c8306b241f9db88fc62fCharles Davis MCWin64EHUnwindEmitter::Emit(*this); 63338ea9eecd7c810e11f96c8306b241f9db88fc62fCharles Davis} 634