MCStreamer.cpp revision 6c2cf8b1fbcf70fd9db6fe44032c1ceaa2299760
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" 1958bc4dd4a91443ddd3120b0a2f1801ad4d6aae1cChris Lattner#include "llvm/ADT/Twine.h" 203580dea910d622f2a6dbb72e97f5f7d0ef979542Chris Lattner#include <cstdlib> 21a11af531ec48ad84f790b9511f003ac5c934a999Daniel Dunbarusing namespace llvm; 22a11af531ec48ad84f790b9511f003ac5c934a999Daniel Dunbar 23f9efd83166401bca542c6702ea329f9901c4e04bRafael EspindolaMCStreamer::MCStreamer(MCContext &Ctx) : Context(Ctx), EmitEHFrame(true), 2440de0e013a456971697491b428fb903570e8766eCharles Davis EmitDebugFrame(false), 252df9f8df9541e7650876413cde555eb3d285be4bBenjamin Kramer CurrentW64UnwindInfo(0), 262fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson LastSymbol(0), 272fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson UniqueCodeBeginSuffix(0), 282fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson UniqueDataBeginSuffix(0) { 297d0805dcb82e9ba1d90ce8d702169683b9caded7Joerg Sonnenberger const MCSection *section = NULL; 307d0805dcb82e9ba1d90ce8d702169683b9caded7Joerg Sonnenberger SectionStack.push_back(std::make_pair(section, section)); 31a11af531ec48ad84f790b9511f003ac5c934a999Daniel Dunbar} 32a11af531ec48ad84f790b9511f003ac5c934a999Daniel Dunbar 33a11af531ec48ad84f790b9511f003ac5c934a999Daniel DunbarMCStreamer::~MCStreamer() { 344eeb7b662b78f5c520fb258b3f9df18b1227cde5Charles Davis for (unsigned i = 0; i < getNumW64UnwindInfos(); ++i) 354eeb7b662b78f5c520fb258b3f9df18b1227cde5Charles Davis delete W64UnwindInfos[i]; 36a11af531ec48ad84f790b9511f003ac5c934a999Daniel Dunbar} 37ddf6bdde44287b5b559bc403a02ff971e15e8303Chris Lattner 38a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindolaconst MCExpr *MCStreamer::BuildSymbolDiff(MCContext &Context, 39a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola const MCSymbol *A, 40a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola const MCSymbol *B) { 41a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola MCSymbolRefExpr::VariantKind Variant = MCSymbolRefExpr::VK_None; 42a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola const MCExpr *ARef = 43a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola MCSymbolRefExpr::Create(A, Variant, Context); 44a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola const MCExpr *BRef = 45a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola MCSymbolRefExpr::Create(B, Variant, Context); 46a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola const MCExpr *AddrDelta = 47a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola MCBinaryExpr::Create(MCBinaryExpr::Sub, ARef, BRef, Context); 48a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola return AddrDelta; 49a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola} 50a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola 51a6f2678f08299f053feb58337fc4322131d99bf4Rafael Espindolaconst MCExpr *MCStreamer::ForceExpAbs(const MCExpr* Expr) { 5278ff647e4471c88c3a3826e7ac24adcd8a9a2073Rafael Espindola if (Context.getAsmInfo().hasAggressiveSymbolFolding() || 5378ff647e4471c88c3a3826e7ac24adcd8a9a2073Rafael Espindola isa<MCSymbolRefExpr>(Expr)) 54a6f2678f08299f053feb58337fc4322131d99bf4Rafael Espindola return Expr; 55a6f2678f08299f053feb58337fc4322131d99bf4Rafael Espindola 56a6f2678f08299f053feb58337fc4322131d99bf4Rafael Espindola MCSymbol *ABS = Context.CreateTempSymbol(); 57a6f2678f08299f053feb58337fc4322131d99bf4Rafael Espindola EmitAssignment(ABS, Expr); 58a6f2678f08299f053feb58337fc4322131d99bf4Rafael Espindola return MCSymbolRefExpr::Create(ABS, Context); 59a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola} 60a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola 61d79d9dce47d505369662ae5111dba24f9ccdef68Chris Lattnerraw_ostream &MCStreamer::GetCommentOS() { 62d79d9dce47d505369662ae5111dba24f9ccdef68Chris Lattner // By default, discard comments. 63d79d9dce47d505369662ae5111dba24f9ccdef68Chris Lattner return nulls(); 64d79d9dce47d505369662ae5111dba24f9ccdef68Chris Lattner} 65d79d9dce47d505369662ae5111dba24f9ccdef68Chris Lattner 6632a006e606742b1c5401e49607e33717bb5441f0Rafael Espindolavoid MCStreamer::EmitDwarfSetLineAddr(int64_t LineDelta, 6732a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola const MCSymbol *Label, int PointerSize) { 6832a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola // emit the sequence to set the address 6932a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola EmitIntValue(dwarf::DW_LNS_extended_op, 1); 7032a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola EmitULEB128IntValue(PointerSize + 1); 7132a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola EmitIntValue(dwarf::DW_LNE_set_address, 1); 7232a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola EmitSymbolValue(Label, PointerSize); 7332a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola 7432a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola // emit the sequence for the LineDelta (from 1) and a zero address delta. 7532a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola MCDwarfLineAddr::Emit(this, LineDelta, 0); 7632a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola} 77d79d9dce47d505369662ae5111dba24f9ccdef68Chris Lattner 7832ae3fe0ba469240753e2342e36485f7c9acfb5cChris Lattner/// EmitIntValue - Special case of EmitValue that avoids the client having to 7932ae3fe0ba469240753e2342e36485f7c9acfb5cChris Lattner/// pass in a MCExpr for constant integers. 8032ae3fe0ba469240753e2342e36485f7c9acfb5cChris Lattnervoid MCStreamer::EmitIntValue(uint64_t Value, unsigned Size, 8132ae3fe0ba469240753e2342e36485f7c9acfb5cChris Lattner unsigned AddrSpace) { 82dea914bed9fb1d5c08e944557989ccddb6849000Devang Patel assert(Size <= 8 && "Invalid size"); 83818b5f5dd7979b097564f829896353df286127ffMatt Beaumont-Gay assert((isUIntN(8 * Size, Value) || isIntN(8 * Size, Value)) && 84818b5f5dd7979b097564f829896353df286127ffMatt Beaumont-Gay "Invalid size"); 852df042cb32ecb8d2e1d499dfa27d5074c8b40e13Rafael Espindola char buf[8]; 861be0e271a07925b928ba89848934f1ea6f1854e2Evan Cheng const bool isLittleEndian = Context.getAsmInfo().isLittleEndian(); 8765891533a3b35d7fc8fa807a96b7ee2f09ff22b5Roman Divacky for (unsigned i = 0; i != Size; ++i) { 8865891533a3b35d7fc8fa807a96b7ee2f09ff22b5Roman Divacky unsigned index = isLittleEndian ? i : (Size - i - 1); 8965891533a3b35d7fc8fa807a96b7ee2f09ff22b5Roman Divacky buf[i] = uint8_t(Value >> (index * 8)); 9065891533a3b35d7fc8fa807a96b7ee2f09ff22b5Roman Divacky } 912df042cb32ecb8d2e1d499dfa27d5074c8b40e13Rafael Espindola EmitBytes(StringRef(buf, Size), AddrSpace); 9232ae3fe0ba469240753e2342e36485f7c9acfb5cChris Lattner} 9332ae3fe0ba469240753e2342e36485f7c9acfb5cChris Lattner 943ff57094a7d176a759ddb1e1668489d89064f56cRafael Espindola/// EmitULEB128Value - Special case of EmitULEB128Value that avoids the 953ff57094a7d176a759ddb1e1668489d89064f56cRafael Espindola/// client having to pass in a MCExpr for constant integers. 96c25c90897781f116d5dbabab170bafcf65900fa7Benjamin Kramervoid MCStreamer::EmitULEB128IntValue(uint64_t Value, unsigned AddrSpace, 97c25c90897781f116d5dbabab170bafcf65900fa7Benjamin Kramer unsigned Padding) { 98660b5fc4d019bf22fbe14dfb81c5b59444fa3506Rafael Espindola SmallString<32> Tmp; 99660b5fc4d019bf22fbe14dfb81c5b59444fa3506Rafael Espindola raw_svector_ostream OSE(Tmp); 100c25c90897781f116d5dbabab170bafcf65900fa7Benjamin Kramer MCObjectWriter::EncodeULEB128(Value, OSE, Padding); 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 1316c2cf8b1fbcf70fd9db6fe44032c1ceaa2299760Akira Hatanakavoid MCStreamer::EmitGPRel64Value(const MCExpr *Value) { 1326c2cf8b1fbcf70fd9db6fe44032c1ceaa2299760Akira Hatanaka report_fatal_error("unsupported directive in streamer"); 1336c2cf8b1fbcf70fd9db6fe44032c1ceaa2299760Akira Hatanaka} 1346c2cf8b1fbcf70fd9db6fe44032c1ceaa2299760Akira Hatanaka 1353e03211625bba5bbb70a193c140ebf4dd8388bb7Rafael Espindolavoid MCStreamer::EmitGPRel32Value(const MCExpr *Value) { 1363e03211625bba5bbb70a193c140ebf4dd8388bb7Rafael Espindola report_fatal_error("unsupported directive in streamer"); 1373e03211625bba5bbb70a193c140ebf4dd8388bb7Rafael Espindola} 1383e03211625bba5bbb70a193c140ebf4dd8388bb7Rafael Espindola 139ddf6bdde44287b5b559bc403a02ff971e15e8303Chris Lattner/// EmitFill - Emit NumBytes bytes worth of the value specified by 140ddf6bdde44287b5b559bc403a02ff971e15e8303Chris Lattner/// FillValue. This implements directives such as '.space'. 141aaec205b87637cd0d59d4f11630db603686eb73dChris Lattnervoid MCStreamer::EmitFill(uint64_t NumBytes, uint8_t FillValue, 142aaec205b87637cd0d59d4f11630db603686eb73dChris Lattner unsigned AddrSpace) { 143ddf6bdde44287b5b559bc403a02ff971e15e8303Chris Lattner const MCExpr *E = MCConstantExpr::Create(FillValue, getContext()); 144ddf6bdde44287b5b559bc403a02ff971e15e8303Chris Lattner for (uint64_t i = 0, e = NumBytes; i != e; ++i) 145aaec205b87637cd0d59d4f11630db603686eb73dChris Lattner EmitValue(E, 1, AddrSpace); 146ddf6bdde44287b5b559bc403a02ff971e15e8303Chris Lattner} 14791bead790518fcf5cb26019fb1ebf2372e8a5b3fChris Lattner 148af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindolabool MCStreamer::EmitDwarfFileDirective(unsigned FileNo, 14944d798d9763bc32aaf49fe7c10d604845f4b6685Nick Lewycky StringRef Directory, 150af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindola StringRef Filename) { 15144d798d9763bc32aaf49fe7c10d604845f4b6685Nick Lewycky return getContext().GetDwarfFile(Directory, Filename, FileNo) == 0; 152af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindola} 153af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindola 154af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindolavoid MCStreamer::EmitDwarfLocDirective(unsigned FileNo, unsigned Line, 155af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindola unsigned Column, unsigned Flags, 156af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindola unsigned Isa, 1573f3bf9387b75f4c932e4c59bd7af719d26ae4b99Devang Patel unsigned Discriminator, 1583f3bf9387b75f4c932e4c59bd7af719d26ae4b99Devang Patel StringRef FileName) { 159af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindola getContext().setCurrentDwarfLoc(FileNo, Line, Column, Flags, Isa, 160af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindola Discriminator); 161af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindola} 162af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindola 16389b9372605db2ce3b0085c84089e389f7bc1fbddRafael EspindolaMCDwarfFrameInfo *MCStreamer::getCurrentFrameInfo() { 16489b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola if (FrameInfos.empty()) 16589b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola return NULL; 16689b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola return &FrameInfos.back(); 16789b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola} 16889b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola 16989b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindolavoid MCStreamer::EnsureValidFrame() { 17089b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 17189b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola if (!CurFrame || CurFrame->End) 17289b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola report_fatal_error("No open frame"); 17389b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola} 17489b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola 1758bca4106dfc2945723251db10e340183f3e372ddRafael Espindolavoid MCStreamer::EmitEHSymAttributes(const MCSymbol *Symbol, 1768bca4106dfc2945723251db10e340183f3e372ddRafael Espindola MCSymbol *EHSymbol) { 1778bca4106dfc2945723251db10e340183f3e372ddRafael Espindola} 1788bca4106dfc2945723251db10e340183f3e372ddRafael Espindola 179ed708f9c1facb9928ef2f79503e7030c8f25b00dRafael Espindolavoid MCStreamer::EmitLabel(MCSymbol *Symbol) { 180ed708f9c1facb9928ef2f79503e7030c8f25b00dRafael Espindola assert(!Symbol->isVariable() && "Cannot emit a variable symbol!"); 181ed708f9c1facb9928ef2f79503e7030c8f25b00dRafael Espindola assert(getCurrentSection() && "Cannot emit before setting section!"); 182ed708f9c1facb9928ef2f79503e7030c8f25b00dRafael Espindola Symbol->setSection(*getCurrentSection()); 18349cb9b88867426d1a430f248550d3cc785a68fe4Rafael Espindola LastSymbol = Symbol; 184ed708f9c1facb9928ef2f79503e7030c8f25b00dRafael Espindola} 185ed708f9c1facb9928ef2f79503e7030c8f25b00dRafael Espindola 1862fec6c5ff153786744ba7d0d302b73179731c5e9Owen Andersonvoid MCStreamer::EmitDataRegion() { 1872fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson if (RegionIndicator == Data) return; 1882fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson 1892fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson MCContext &Context = getContext(); 1902fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson const MCAsmInfo &MAI = Context.getAsmInfo(); 1912fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson if (!MAI.getSupportsDataRegions()) return; 1922fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson 1932fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson // Generate a unique symbol name. 1943f4c979e1b1e02e51443cf88f4b7ec47a6865aaeBenjamin Kramer MCSymbol *NewSym = Context.GetOrCreateSymbol(MAI.getDataBeginLabelName() + 1953f4c979e1b1e02e51443cf88f4b7ec47a6865aaeBenjamin Kramer Twine(UniqueDataBeginSuffix++)); 1962fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson EmitLabel(NewSym); 1972fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson 1982fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson RegionIndicator = Data; 1992fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson} 2002fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson 2012fec6c5ff153786744ba7d0d302b73179731c5e9Owen Andersonvoid MCStreamer::EmitCodeRegion() { 2022fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson if (RegionIndicator == Code) return; 2032fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson 2042fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson MCContext &Context = getContext(); 2052fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson const MCAsmInfo &MAI = Context.getAsmInfo(); 2062fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson if (!MAI.getSupportsDataRegions()) return; 2072fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson 2082fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson // Generate a unique symbol name. 2093f4c979e1b1e02e51443cf88f4b7ec47a6865aaeBenjamin Kramer MCSymbol *NewSym = Context.GetOrCreateSymbol(MAI.getCodeBeginLabelName() + 2103f4c979e1b1e02e51443cf88f4b7ec47a6865aaeBenjamin Kramer Twine(UniqueCodeBeginSuffix++)); 2112fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson EmitLabel(NewSym); 2122fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson 2132fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson RegionIndicator = Code; 2142fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson} 2152fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson 2162fec6c5ff153786744ba7d0d302b73179731c5e9Owen Andersonvoid MCStreamer::EmitJumpTable8Region() { 2172fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson if (RegionIndicator == JumpTable8) return; 2182fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson 2192fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson MCContext &Context = getContext(); 2202fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson const MCAsmInfo &MAI = Context.getAsmInfo(); 2212fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson if (!MAI.getSupportsDataRegions()) return; 2222fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson 2232fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson // Generate a unique symbol name. 2243f4c979e1b1e02e51443cf88f4b7ec47a6865aaeBenjamin Kramer MCSymbol *NewSym = 2253f4c979e1b1e02e51443cf88f4b7ec47a6865aaeBenjamin Kramer Context.GetOrCreateSymbol(MAI.getJumpTable8BeginLabelName() + 2263f4c979e1b1e02e51443cf88f4b7ec47a6865aaeBenjamin Kramer Twine(UniqueDataBeginSuffix++)); 2272fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson EmitLabel(NewSym); 2282fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson 2292fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson RegionIndicator = JumpTable8; 2302fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson} 2312fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson 2322fec6c5ff153786744ba7d0d302b73179731c5e9Owen Andersonvoid MCStreamer::EmitJumpTable16Region() { 2332fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson if (RegionIndicator == JumpTable16) return; 2342fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson 2352fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson MCContext &Context = getContext(); 2362fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson const MCAsmInfo &MAI = Context.getAsmInfo(); 2372fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson if (!MAI.getSupportsDataRegions()) return; 2382fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson 2392fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson // Generate a unique symbol name. 2403f4c979e1b1e02e51443cf88f4b7ec47a6865aaeBenjamin Kramer MCSymbol *NewSym = 2413f4c979e1b1e02e51443cf88f4b7ec47a6865aaeBenjamin Kramer Context.GetOrCreateSymbol(MAI.getJumpTable16BeginLabelName() + 2423f4c979e1b1e02e51443cf88f4b7ec47a6865aaeBenjamin Kramer Twine(UniqueDataBeginSuffix++)); 2432fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson EmitLabel(NewSym); 2442fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson 2452fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson RegionIndicator = JumpTable16; 2462fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson} 2472fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson 2482fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson 2492fec6c5ff153786744ba7d0d302b73179731c5e9Owen Andersonvoid MCStreamer::EmitJumpTable32Region() { 2502fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson if (RegionIndicator == JumpTable32) return; 2512fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson 2522fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson MCContext &Context = getContext(); 2532fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson const MCAsmInfo &MAI = Context.getAsmInfo(); 2542fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson if (!MAI.getSupportsDataRegions()) return; 2552fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson 2562fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson // Generate a unique symbol name. 2573f4c979e1b1e02e51443cf88f4b7ec47a6865aaeBenjamin Kramer MCSymbol *NewSym = 2583f4c979e1b1e02e51443cf88f4b7ec47a6865aaeBenjamin Kramer Context.GetOrCreateSymbol(MAI.getJumpTable32BeginLabelName() + 2593f4c979e1b1e02e51443cf88f4b7ec47a6865aaeBenjamin Kramer Twine(UniqueDataBeginSuffix++)); 2602fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson EmitLabel(NewSym); 2612fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson 2622fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson RegionIndicator = JumpTable32; 2632fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson} 2642fec6c5ff153786744ba7d0d302b73179731c5e9Owen Anderson 265d967578a8c506be341d20a1558eebb31484b8b6dBill Wendlingvoid MCStreamer::EmitCompactUnwindEncoding(uint32_t CompactUnwindEncoding) { 266d967578a8c506be341d20a1558eebb31484b8b6dBill Wendling EnsureValidFrame(); 267d967578a8c506be341d20a1558eebb31484b8b6dBill Wendling MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 268d967578a8c506be341d20a1558eebb31484b8b6dBill Wendling CurFrame->CompactUnwindEncoding = CompactUnwindEncoding; 269d967578a8c506be341d20a1558eebb31484b8b6dBill Wendling} 270d967578a8c506be341d20a1558eebb31484b8b6dBill Wendling 271f9efd83166401bca542c6702ea329f9901c4e04bRafael Espindolavoid MCStreamer::EmitCFISections(bool EH, bool Debug) { 272713c4bfc36260bfc9273d414b14757bd7819f9b1Rafael Espindola assert(EH || Debug); 273f9efd83166401bca542c6702ea329f9901c4e04bRafael Espindola EmitEHFrame = EH; 274f9efd83166401bca542c6702ea329f9901c4e04bRafael Espindola EmitDebugFrame = Debug; 275f9efd83166401bca542c6702ea329f9901c4e04bRafael Espindola} 276f9efd83166401bca542c6702ea329f9901c4e04bRafael Espindola 277066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindolavoid MCStreamer::EmitCFIStartProc() { 27889b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 279066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindola if (CurFrame && !CurFrame->End) 28089b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola report_fatal_error("Starting a frame before finishing the previous one!"); 28149cb9b88867426d1a430f248550d3cc785a68fe4Rafael Espindola 2825fbe5e783ee0c5ae27c17490a752d7e603e84ed2Evan Cheng MCDwarfFrameInfo Frame; 283547be2699c547b79a7735858a64921d8ccf180f7Rafael Espindola EmitCFIStartProcImpl(Frame); 284547be2699c547b79a7735858a64921d8ccf180f7Rafael Espindola 285547be2699c547b79a7735858a64921d8ccf180f7Rafael Espindola FrameInfos.push_back(Frame); 286547be2699c547b79a7735858a64921d8ccf180f7Rafael Espindola RegionIndicator = Code; 287547be2699c547b79a7735858a64921d8ccf180f7Rafael Espindola} 28849cb9b88867426d1a430f248550d3cc785a68fe4Rafael Espindola 289547be2699c547b79a7735858a64921d8ccf180f7Rafael Espindolavoid MCStreamer::EmitCFIStartProcImpl(MCDwarfFrameInfo &Frame) { 290547be2699c547b79a7735858a64921d8ccf180f7Rafael Espindola} 291547be2699c547b79a7735858a64921d8ccf180f7Rafael Espindola 292547be2699c547b79a7735858a64921d8ccf180f7Rafael Espindolavoid MCStreamer::RecordProcStart(MCDwarfFrameInfo &Frame) { 293547be2699c547b79a7735858a64921d8ccf180f7Rafael Espindola Frame.Function = LastSymbol; 29449cb9b88867426d1a430f248550d3cc785a68fe4Rafael Espindola // If the function is externally visible, we need to create a local 29549cb9b88867426d1a430f248550d3cc785a68fe4Rafael Espindola // symbol to avoid relocations. 29649cb9b88867426d1a430f248550d3cc785a68fe4Rafael Espindola StringRef Prefix = getContext().getAsmInfo().getPrivateGlobalPrefix(); 2975fbe5e783ee0c5ae27c17490a752d7e603e84ed2Evan Cheng if (LastSymbol && LastSymbol->getName().startswith(Prefix)) { 29849cb9b88867426d1a430f248550d3cc785a68fe4Rafael Espindola Frame.Begin = LastSymbol; 29949cb9b88867426d1a430f248550d3cc785a68fe4Rafael Espindola } else { 30049cb9b88867426d1a430f248550d3cc785a68fe4Rafael Espindola Frame.Begin = getContext().CreateTempSymbol(); 30149cb9b88867426d1a430f248550d3cc785a68fe4Rafael Espindola EmitLabel(Frame.Begin); 30249cb9b88867426d1a430f248550d3cc785a68fe4Rafael Espindola } 303cdfecc8759941c2996214070478d30084b79d463Rafael Espindola} 304cdfecc8759941c2996214070478d30084b79d463Rafael Espindola 305066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindolavoid MCStreamer::EmitCFIEndProc() { 30689b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola EnsureValidFrame(); 30789b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 3081fe9737eb49ecb80fbb547f0e16e10a726cd53cfRafael Espindola EmitCFIEndProcImpl(*CurFrame); 3091fe9737eb49ecb80fbb547f0e16e10a726cd53cfRafael Espindola} 3101fe9737eb49ecb80fbb547f0e16e10a726cd53cfRafael Espindola 3111fe9737eb49ecb80fbb547f0e16e10a726cd53cfRafael Espindolavoid MCStreamer::EmitCFIEndProcImpl(MCDwarfFrameInfo &Frame) { 3121fe9737eb49ecb80fbb547f0e16e10a726cd53cfRafael Espindola} 3131fe9737eb49ecb80fbb547f0e16e10a726cd53cfRafael Espindola 3141fe9737eb49ecb80fbb547f0e16e10a726cd53cfRafael Espindolavoid MCStreamer::RecordProcEnd(MCDwarfFrameInfo &Frame) { 3151fe9737eb49ecb80fbb547f0e16e10a726cd53cfRafael Espindola Frame.End = getContext().CreateTempSymbol(); 3161fe9737eb49ecb80fbb547f0e16e10a726cd53cfRafael Espindola EmitLabel(Frame.End); 317cdfecc8759941c2996214070478d30084b79d463Rafael Espindola} 318cdfecc8759941c2996214070478d30084b79d463Rafael Espindola 319066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindolavoid MCStreamer::EmitCFIDefCfa(int64_t Register, int64_t Offset) { 320b40a71fda188f8ca564e606ac2cb051a44ada311Rafael Espindola EnsureValidFrame(); 321b40a71fda188f8ca564e606ac2cb051a44ada311Rafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 322b40a71fda188f8ca564e606ac2cb051a44ada311Rafael Espindola MCSymbol *Label = getContext().CreateTempSymbol(); 323b40a71fda188f8ca564e606ac2cb051a44ada311Rafael Espindola EmitLabel(Label); 324b40a71fda188f8ca564e606ac2cb051a44ada311Rafael Espindola MachineLocation Dest(MachineLocation::VirtualFP); 325b40a71fda188f8ca564e606ac2cb051a44ada311Rafael Espindola MachineLocation Source(Register, -Offset); 326b40a71fda188f8ca564e606ac2cb051a44ada311Rafael Espindola MCCFIInstruction Instruction(Label, Dest, Source); 327b40a71fda188f8ca564e606ac2cb051a44ada311Rafael Espindola CurFrame->Instructions.push_back(Instruction); 328b40a71fda188f8ca564e606ac2cb051a44ada311Rafael Espindola} 329b40a71fda188f8ca564e606ac2cb051a44ada311Rafael Espindola 330066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindolavoid MCStreamer::EmitCFIDefCfaOffset(int64_t Offset) { 33189b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola EnsureValidFrame(); 3325bba08425374ca36fe5fbc7423ce1a09858e4097Rafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 3335bba08425374ca36fe5fbc7423ce1a09858e4097Rafael Espindola MCSymbol *Label = getContext().CreateTempSymbol(); 3345bba08425374ca36fe5fbc7423ce1a09858e4097Rafael Espindola EmitLabel(Label); 3355bba08425374ca36fe5fbc7423ce1a09858e4097Rafael Espindola MachineLocation Dest(MachineLocation::VirtualFP); 3365bba08425374ca36fe5fbc7423ce1a09858e4097Rafael Espindola MachineLocation Source(MachineLocation::VirtualFP, -Offset); 337fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola MCCFIInstruction Instruction(Label, Dest, Source); 338fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola CurFrame->Instructions.push_back(Instruction); 339cdfecc8759941c2996214070478d30084b79d463Rafael Espindola} 340cdfecc8759941c2996214070478d30084b79d463Rafael Espindola 3415d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962Rafael Espindolavoid MCStreamer::EmitCFIAdjustCfaOffset(int64_t Adjustment) { 3425d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962Rafael Espindola EnsureValidFrame(); 3435d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962Rafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 3445d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962Rafael Espindola MCSymbol *Label = getContext().CreateTempSymbol(); 3455d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962Rafael Espindola EmitLabel(Label); 3465d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962Rafael Espindola MachineLocation Dest(MachineLocation::VirtualFP); 3475d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962Rafael Espindola MachineLocation Source(MachineLocation::VirtualFP, Adjustment); 3485d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962Rafael Espindola MCCFIInstruction Instruction(MCCFIInstruction::RelMove, Label, Dest, Source); 3495d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962Rafael Espindola CurFrame->Instructions.push_back(Instruction); 3505d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962Rafael Espindola} 3515d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962Rafael Espindola 352066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindolavoid MCStreamer::EmitCFIDefCfaRegister(int64_t Register) { 35389b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola EnsureValidFrame(); 354b4601bd2ffdde372f1323f6b6ec98acd433501ceRafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 355b4601bd2ffdde372f1323f6b6ec98acd433501ceRafael Espindola MCSymbol *Label = getContext().CreateTempSymbol(); 356b4601bd2ffdde372f1323f6b6ec98acd433501ceRafael Espindola EmitLabel(Label); 357b4601bd2ffdde372f1323f6b6ec98acd433501ceRafael Espindola MachineLocation Dest(Register); 358b4601bd2ffdde372f1323f6b6ec98acd433501ceRafael Espindola MachineLocation Source(MachineLocation::VirtualFP); 359b4601bd2ffdde372f1323f6b6ec98acd433501ceRafael Espindola MCCFIInstruction Instruction(Label, Dest, Source); 360b4601bd2ffdde372f1323f6b6ec98acd433501ceRafael Espindola CurFrame->Instructions.push_back(Instruction); 361cdfecc8759941c2996214070478d30084b79d463Rafael Espindola} 362cdfecc8759941c2996214070478d30084b79d463Rafael Espindola 363066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindolavoid MCStreamer::EmitCFIOffset(int64_t Register, int64_t Offset) { 36489b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola EnsureValidFrame(); 365b790a17efba26f4365b5ffb847dd53fde063c48dRafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 366b790a17efba26f4365b5ffb847dd53fde063c48dRafael Espindola MCSymbol *Label = getContext().CreateTempSymbol(); 367b790a17efba26f4365b5ffb847dd53fde063c48dRafael Espindola EmitLabel(Label); 368b790a17efba26f4365b5ffb847dd53fde063c48dRafael Espindola MachineLocation Dest(Register, Offset); 369b790a17efba26f4365b5ffb847dd53fde063c48dRafael Espindola MachineLocation Source(Register, Offset); 370b790a17efba26f4365b5ffb847dd53fde063c48dRafael Espindola MCCFIInstruction Instruction(Label, Dest, Source); 371b790a17efba26f4365b5ffb847dd53fde063c48dRafael Espindola CurFrame->Instructions.push_back(Instruction); 372cdfecc8759941c2996214070478d30084b79d463Rafael Espindola} 373cdfecc8759941c2996214070478d30084b79d463Rafael Espindola 37425f492e77858dc5a95fcd7180e73aff47925b668Rafael Espindolavoid MCStreamer::EmitCFIRelOffset(int64_t Register, int64_t Offset) { 37525f492e77858dc5a95fcd7180e73aff47925b668Rafael Espindola EnsureValidFrame(); 37625f492e77858dc5a95fcd7180e73aff47925b668Rafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 37725f492e77858dc5a95fcd7180e73aff47925b668Rafael Espindola MCSymbol *Label = getContext().CreateTempSymbol(); 37825f492e77858dc5a95fcd7180e73aff47925b668Rafael Espindola EmitLabel(Label); 37925f492e77858dc5a95fcd7180e73aff47925b668Rafael Espindola MachineLocation Dest(Register, Offset); 38025f492e77858dc5a95fcd7180e73aff47925b668Rafael Espindola MachineLocation Source(Register, Offset); 38125f492e77858dc5a95fcd7180e73aff47925b668Rafael Espindola MCCFIInstruction Instruction(MCCFIInstruction::RelMove, Label, Dest, Source); 38225f492e77858dc5a95fcd7180e73aff47925b668Rafael Espindola CurFrame->Instructions.push_back(Instruction); 38325f492e77858dc5a95fcd7180e73aff47925b668Rafael Espindola} 38425f492e77858dc5a95fcd7180e73aff47925b668Rafael Espindola 385066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindolavoid MCStreamer::EmitCFIPersonality(const MCSymbol *Sym, 3863a83c40ab61d5ca624f2bbadd70237c6adbdb304Rafael Espindola unsigned Encoding) { 38789b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola EnsureValidFrame(); 38889b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 38989b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola CurFrame->Personality = Sym; 3903a83c40ab61d5ca624f2bbadd70237c6adbdb304Rafael Espindola CurFrame->PersonalityEncoding = Encoding; 391cdfecc8759941c2996214070478d30084b79d463Rafael Espindola} 392cdfecc8759941c2996214070478d30084b79d463Rafael Espindola 393066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindolavoid MCStreamer::EmitCFILsda(const MCSymbol *Sym, unsigned Encoding) { 39489b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola EnsureValidFrame(); 39589b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 39689b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola CurFrame->Lsda = Sym; 397bdc3167c086dd4358e24692075db5e7784140843Rafael Espindola CurFrame->LsdaEncoding = Encoding; 398cdfecc8759941c2996214070478d30084b79d463Rafael Espindola} 399cdfecc8759941c2996214070478d30084b79d463Rafael Espindola 400066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindolavoid MCStreamer::EmitCFIRememberState() { 401fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola EnsureValidFrame(); 402fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 403fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola MCSymbol *Label = getContext().CreateTempSymbol(); 404fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola EmitLabel(Label); 405c25680f728f89dd43939b00049ee524fbf59b7beRafael Espindola MCCFIInstruction Instruction(MCCFIInstruction::RememberState, Label); 406fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola CurFrame->Instructions.push_back(Instruction); 407fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola} 408fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola 409066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindolavoid MCStreamer::EmitCFIRestoreState() { 410fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola // FIXME: Error if there is no matching cfi_remember_state. 411fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola EnsureValidFrame(); 412fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 413fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola MCSymbol *Label = getContext().CreateTempSymbol(); 414fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola EmitLabel(Label); 415c25680f728f89dd43939b00049ee524fbf59b7beRafael Espindola MCCFIInstruction Instruction(MCCFIInstruction::RestoreState, Label); 416fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola CurFrame->Instructions.push_back(Instruction); 417fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola} 418fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola 419c57543964d1382d3d3a5005f415b6c0f49671b3aRafael Espindolavoid MCStreamer::EmitCFISameValue(int64_t Register) { 420c57543964d1382d3d3a5005f415b6c0f49671b3aRafael Espindola EnsureValidFrame(); 421c57543964d1382d3d3a5005f415b6c0f49671b3aRafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 422c57543964d1382d3d3a5005f415b6c0f49671b3aRafael Espindola MCSymbol *Label = getContext().CreateTempSymbol(); 423c57543964d1382d3d3a5005f415b6c0f49671b3aRafael Espindola EmitLabel(Label); 424c57543964d1382d3d3a5005f415b6c0f49671b3aRafael Espindola MCCFIInstruction Instruction(MCCFIInstruction::SameValue, Label, Register); 425c57543964d1382d3d3a5005f415b6c0f49671b3aRafael Espindola CurFrame->Instructions.push_back(Instruction); 426c57543964d1382d3d3a5005f415b6c0f49671b3aRafael Espindola} 427c57543964d1382d3d3a5005f415b6c0f49671b3aRafael Espindola 428ed23bdb65fe86cdb7a38c8c1998ec965e6973966Rafael Espindolavoid MCStreamer::EmitCFIRestore(int64_t Register) { 429ed23bdb65fe86cdb7a38c8c1998ec965e6973966Rafael Espindola EnsureValidFrame(); 430ed23bdb65fe86cdb7a38c8c1998ec965e6973966Rafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 431ed23bdb65fe86cdb7a38c8c1998ec965e6973966Rafael Espindola MCSymbol *Label = getContext().CreateTempSymbol(); 432ed23bdb65fe86cdb7a38c8c1998ec965e6973966Rafael Espindola EmitLabel(Label); 433ed23bdb65fe86cdb7a38c8c1998ec965e6973966Rafael Espindola MCCFIInstruction Instruction(MCCFIInstruction::Restore, Label, Register); 434ed23bdb65fe86cdb7a38c8c1998ec965e6973966Rafael Espindola CurFrame->Instructions.push_back(Instruction); 435ed23bdb65fe86cdb7a38c8c1998ec965e6973966Rafael Espindola} 436ed23bdb65fe86cdb7a38c8c1998ec965e6973966Rafael Espindola 4376f0b181bc70318f8d5d4b9bdead7fc748677fe2aRafael Espindolavoid MCStreamer::EmitCFIEscape(StringRef Values) { 4386f0b181bc70318f8d5d4b9bdead7fc748677fe2aRafael Espindola EnsureValidFrame(); 4396f0b181bc70318f8d5d4b9bdead7fc748677fe2aRafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 4406f0b181bc70318f8d5d4b9bdead7fc748677fe2aRafael Espindola MCSymbol *Label = getContext().CreateTempSymbol(); 4416f0b181bc70318f8d5d4b9bdead7fc748677fe2aRafael Espindola EmitLabel(Label); 4426f0b181bc70318f8d5d4b9bdead7fc748677fe2aRafael Espindola MCCFIInstruction Instruction(MCCFIInstruction::Escape, Label, Values); 4436f0b181bc70318f8d5d4b9bdead7fc748677fe2aRafael Espindola CurFrame->Instructions.push_back(Instruction); 4446f0b181bc70318f8d5d4b9bdead7fc748677fe2aRafael Espindola} 4456f0b181bc70318f8d5d4b9bdead7fc748677fe2aRafael Espindola 44616d7d437e03ce87fdaef7971919302920d54a966Rafael Espindolavoid MCStreamer::EmitCFISignalFrame() { 44716d7d437e03ce87fdaef7971919302920d54a966Rafael Espindola EnsureValidFrame(); 44816d7d437e03ce87fdaef7971919302920d54a966Rafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 44916d7d437e03ce87fdaef7971919302920d54a966Rafael Espindola CurFrame->IsSignalFrame = true; 45016d7d437e03ce87fdaef7971919302920d54a966Rafael Espindola} 45116d7d437e03ce87fdaef7971919302920d54a966Rafael Espindola 45291d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davisvoid MCStreamer::setCurrentW64UnwindInfo(MCWin64EHUnwindInfo *Frame) { 453ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis W64UnwindInfos.push_back(Frame); 454ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis CurrentW64UnwindInfo = W64UnwindInfos.back(); 4559c77398d1c89f615735d304cd7eda3c3e9b1504fCharles Davis} 4569c77398d1c89f615735d304cd7eda3c3e9b1504fCharles Davis 4570855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davisvoid MCStreamer::EnsureValidW64UnwindInfo() { 45891d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 4590855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis if (!CurFrame || CurFrame->End) 4600855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis report_fatal_error("No open Win64 EH frame function!"); 4610855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis} 4620855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis 463fbc539ff37ddd08c2480be9185e7a40919ce8940Charles Davisvoid MCStreamer::EmitWin64EHStartProc(const MCSymbol *Symbol) { 46491d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 4650855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis if (CurFrame && !CurFrame->End) 4660855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis report_fatal_error("Starting a function before ending the previous one!"); 4674eeb7b662b78f5c520fb258b3f9df18b1227cde5Charles Davis MCWin64EHUnwindInfo *Frame = new MCWin64EHUnwindInfo; 468ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis Frame->Begin = getContext().CreateTempSymbol(); 469ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis Frame->Function = Symbol; 470ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis EmitLabel(Frame->Begin); 471ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis setCurrentW64UnwindInfo(Frame); 4720855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis} 4730855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis 4740855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davisvoid MCStreamer::EmitWin64EHEndProc() { 4750855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis EnsureValidW64UnwindInfo(); 47691d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 47791d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis if (CurFrame->ChainedParent) 4780855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis report_fatal_error("Not all chained regions terminated!"); 4790855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis CurFrame->End = getContext().CreateTempSymbol(); 4800855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis EmitLabel(CurFrame->End); 481ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis} 482ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis 483440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davisvoid MCStreamer::EmitWin64EHStartChained() { 48491d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis EnsureValidW64UnwindInfo(); 4854eeb7b662b78f5c520fb258b3f9df18b1227cde5Charles Davis MCWin64EHUnwindInfo *Frame = new MCWin64EHUnwindInfo; 48691d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 487ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis Frame->Begin = getContext().CreateTempSymbol(); 488ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis Frame->Function = CurFrame->Function; 489ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis Frame->ChainedParent = CurFrame; 490ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis EmitLabel(Frame->Begin); 491ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis setCurrentW64UnwindInfo(Frame); 492f07090134d06e0cf3508e8b8e87d775f0a7982c1Charles Davis} 493f07090134d06e0cf3508e8b8e87d775f0a7982c1Charles Davis 494440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davisvoid MCStreamer::EmitWin64EHEndChained() { 49591d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis EnsureValidW64UnwindInfo(); 49691d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 49791d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis if (!CurFrame->ChainedParent) 49891d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis report_fatal_error("End of a chained region outside a chained region!"); 49991d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis CurFrame->End = getContext().CreateTempSymbol(); 50091d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis EmitLabel(CurFrame->End); 50191d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis CurrentW64UnwindInfo = CurFrame->ChainedParent; 502f07090134d06e0cf3508e8b8e87d775f0a7982c1Charles Davis} 503f07090134d06e0cf3508e8b8e87d775f0a7982c1Charles Davis 504440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davisvoid MCStreamer::EmitWin64EHHandler(const MCSymbol *Sym, bool Unwind, 505440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davis bool Except) { 506440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davis EnsureValidW64UnwindInfo(); 507440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 50881f3830f2ed0b26e8bd7ae62e127db427f9f350dCharles Davis if (CurFrame->ChainedParent) 50981f3830f2ed0b26e8bd7ae62e127db427f9f350dCharles Davis report_fatal_error("Chained unwind areas can't have handlers!"); 510440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davis CurFrame->ExceptionHandler = Sym; 511321fe74b2d40d7762175fbd3054fda00b5e70833Charles Davis if (!Except && !Unwind) 512440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davis report_fatal_error("Don't know what kind of handler this is!"); 513321fe74b2d40d7762175fbd3054fda00b5e70833Charles Davis if (Unwind) 514321fe74b2d40d7762175fbd3054fda00b5e70833Charles Davis CurFrame->HandlesUnwind = true; 515321fe74b2d40d7762175fbd3054fda00b5e70833Charles Davis if (Except) 516321fe74b2d40d7762175fbd3054fda00b5e70833Charles Davis CurFrame->HandlesExceptions = true; 517440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davis} 518440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davis 519440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davisvoid MCStreamer::EmitWin64EHHandlerData() { 520d0b76d00048352affac4fad0ef005e28f5340b76Charles Davis EnsureValidW64UnwindInfo(); 52181f3830f2ed0b26e8bd7ae62e127db427f9f350dCharles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 52281f3830f2ed0b26e8bd7ae62e127db427f9f350dCharles Davis if (CurFrame->ChainedParent) 52381f3830f2ed0b26e8bd7ae62e127db427f9f350dCharles Davis report_fatal_error("Chained unwind areas can't have handlers!"); 524f07090134d06e0cf3508e8b8e87d775f0a7982c1Charles Davis} 525f07090134d06e0cf3508e8b8e87d775f0a7982c1Charles Davis 526c3b162857a587c9877e903f038471b882b213232Charles Davisvoid MCStreamer::EmitWin64EHPushReg(unsigned Register) { 527c3b162857a587c9877e903f038471b882b213232Charles Davis EnsureValidW64UnwindInfo(); 528c3b162857a587c9877e903f038471b882b213232Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 529c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis MCSymbol *Label = getContext().CreateTempSymbol(); 530c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis MCWin64EHInstruction Inst(Win64EH::UOP_PushNonVol, Label, Register); 531c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis EmitLabel(Label); 532c3b162857a587c9877e903f038471b882b213232Charles Davis CurFrame->Instructions.push_back(Inst); 533f07090134d06e0cf3508e8b8e87d775f0a7982c1Charles Davis} 534f07090134d06e0cf3508e8b8e87d775f0a7982c1Charles Davis 535c3b162857a587c9877e903f038471b882b213232Charles Davisvoid MCStreamer::EmitWin64EHSetFrame(unsigned Register, unsigned Offset) { 536c3b162857a587c9877e903f038471b882b213232Charles Davis EnsureValidW64UnwindInfo(); 537c2d3022aa6104a21f4368c522ccbf9a4d282b7c6Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 538c2d3022aa6104a21f4368c522ccbf9a4d282b7c6Charles Davis if (CurFrame->LastFrameInst >= 0) 539c2d3022aa6104a21f4368c522ccbf9a4d282b7c6Charles Davis report_fatal_error("Frame register and offset already specified!"); 540edeecbff0e231c04b7222a79a26017a48668f0e2Charles Davis if (Offset & 0x0F) 541edeecbff0e231c04b7222a79a26017a48668f0e2Charles Davis report_fatal_error("Misaligned frame pointer offset!"); 542c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis MCWin64EHInstruction Inst(Win64EH::UOP_SetFPReg, NULL, Register, Offset); 5435c2256a5719172273eaef198f92d8af924ff8623Charles Davis CurFrame->LastFrameInst = CurFrame->Instructions.size(); 544c3b162857a587c9877e903f038471b882b213232Charles Davis CurFrame->Instructions.push_back(Inst); 545ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis} 546ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis 547c3b162857a587c9877e903f038471b882b213232Charles Davisvoid MCStreamer::EmitWin64EHAllocStack(unsigned Size) { 548c3b162857a587c9877e903f038471b882b213232Charles Davis EnsureValidW64UnwindInfo(); 549edeecbff0e231c04b7222a79a26017a48668f0e2Charles Davis if (Size & 7) 550edeecbff0e231c04b7222a79a26017a48668f0e2Charles Davis report_fatal_error("Misaligned stack allocation!"); 551c3b162857a587c9877e903f038471b882b213232Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 552c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis MCSymbol *Label = getContext().CreateTempSymbol(); 553c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis MCWin64EHInstruction Inst(Label, Size); 554c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis EmitLabel(Label); 555c3b162857a587c9877e903f038471b882b213232Charles Davis CurFrame->Instructions.push_back(Inst); 556ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis} 557ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis 558c3b162857a587c9877e903f038471b882b213232Charles Davisvoid MCStreamer::EmitWin64EHSaveReg(unsigned Register, unsigned Offset) { 559c3b162857a587c9877e903f038471b882b213232Charles Davis EnsureValidW64UnwindInfo(); 560edeecbff0e231c04b7222a79a26017a48668f0e2Charles Davis if (Offset & 7) 561edeecbff0e231c04b7222a79a26017a48668f0e2Charles Davis report_fatal_error("Misaligned saved register offset!"); 562c3b162857a587c9877e903f038471b882b213232Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 563c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis MCSymbol *Label = getContext().CreateTempSymbol(); 564c3b162857a587c9877e903f038471b882b213232Charles Davis MCWin64EHInstruction Inst( 565c2d3022aa6104a21f4368c522ccbf9a4d282b7c6Charles Davis Offset > 512*1024-8 ? Win64EH::UOP_SaveNonVolBig : Win64EH::UOP_SaveNonVol, 566c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis Label, Register, Offset); 567c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis EmitLabel(Label); 568c3b162857a587c9877e903f038471b882b213232Charles Davis CurFrame->Instructions.push_back(Inst); 569ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis} 570ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis 571c3b162857a587c9877e903f038471b882b213232Charles Davisvoid MCStreamer::EmitWin64EHSaveXMM(unsigned Register, unsigned Offset) { 572c3b162857a587c9877e903f038471b882b213232Charles Davis EnsureValidW64UnwindInfo(); 573edeecbff0e231c04b7222a79a26017a48668f0e2Charles Davis if (Offset & 0x0F) 574edeecbff0e231c04b7222a79a26017a48668f0e2Charles Davis report_fatal_error("Misaligned saved vector register offset!"); 575c3b162857a587c9877e903f038471b882b213232Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 576c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis MCSymbol *Label = getContext().CreateTempSymbol(); 577c3b162857a587c9877e903f038471b882b213232Charles Davis MCWin64EHInstruction Inst( 578c2d3022aa6104a21f4368c522ccbf9a4d282b7c6Charles Davis Offset > 512*1024-16 ? Win64EH::UOP_SaveXMM128Big : Win64EH::UOP_SaveXMM128, 579c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis Label, Register, Offset); 580c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis EmitLabel(Label); 581c3b162857a587c9877e903f038471b882b213232Charles Davis CurFrame->Instructions.push_back(Inst); 582ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis} 583ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis 584440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davisvoid MCStreamer::EmitWin64EHPushFrame(bool Code) { 585c3b162857a587c9877e903f038471b882b213232Charles Davis EnsureValidW64UnwindInfo(); 586c3b162857a587c9877e903f038471b882b213232Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 587c2d3022aa6104a21f4368c522ccbf9a4d282b7c6Charles Davis if (CurFrame->Instructions.size() > 0) 588c2d3022aa6104a21f4368c522ccbf9a4d282b7c6Charles Davis report_fatal_error("If present, PushMachFrame must be the first UOP"); 589c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis MCSymbol *Label = getContext().CreateTempSymbol(); 590c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis MCWin64EHInstruction Inst(Win64EH::UOP_PushMachFrame, Label, Code); 591c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis EmitLabel(Label); 592c3b162857a587c9877e903f038471b882b213232Charles Davis CurFrame->Instructions.push_back(Inst); 593ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis} 594ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis 595440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davisvoid MCStreamer::EmitWin64EHEndProlog() { 59661558aaf4f924fd44fd2f275fcb7ab7199ede304Charles Davis EnsureValidW64UnwindInfo(); 59761558aaf4f924fd44fd2f275fcb7ab7199ede304Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 59861558aaf4f924fd44fd2f275fcb7ab7199ede304Charles Davis CurFrame->PrologEnd = getContext().CreateTempSymbol(); 59961558aaf4f924fd44fd2f275fcb7ab7199ede304Charles Davis EmitLabel(CurFrame->PrologEnd); 600cacdc4fc41f035c149d5f1b92acd587d475ffd58Charles Davis} 601cacdc4fc41f035c149d5f1b92acd587d475ffd58Charles Davis 6028f7d12ccfd8feb258bdf4e582592bc00beacc7c6Rafael Espindolavoid MCStreamer::EmitCOFFSecRel32(MCSymbol const *Symbol) { 6038f7d12ccfd8feb258bdf4e582592bc00beacc7c6Rafael Espindola assert(0 && "This file format doesn't support this directive"); 6048f7d12ccfd8feb258bdf4e582592bc00beacc7c6Rafael Espindola} 6058f7d12ccfd8feb258bdf4e582592bc00beacc7c6Rafael Espindola 606b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikovvoid MCStreamer::EmitFnStart() { 607b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov errs() << "Not implemented yet\n"; 608b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov abort(); 609b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov} 610b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov 611b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikovvoid MCStreamer::EmitFnEnd() { 612b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov errs() << "Not implemented yet\n"; 613b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov abort(); 614b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov} 615b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov 616b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikovvoid MCStreamer::EmitCantUnwind() { 617b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov errs() << "Not implemented yet\n"; 618b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov abort(); 619b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov} 620b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov 621b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikovvoid MCStreamer::EmitHandlerData() { 622b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov errs() << "Not implemented yet\n"; 623b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov abort(); 624b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov} 625b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov 626b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikovvoid MCStreamer::EmitPersonality(const MCSymbol *Personality) { 627b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov errs() << "Not implemented yet\n"; 628b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov abort(); 629b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov} 630b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov 63157caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikovvoid MCStreamer::EmitSetFP(unsigned FpReg, unsigned SpReg, int64_t Offset) { 63257caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov errs() << "Not implemented yet\n"; 63357caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov abort(); 63457caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov} 63557caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov 63657caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikovvoid MCStreamer::EmitPad(int64_t Offset) { 63757caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov errs() << "Not implemented yet\n"; 63857caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov abort(); 63957caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov} 64057caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov 64157caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikovvoid MCStreamer::EmitRegSave(const SmallVectorImpl<unsigned> &RegList, bool) { 64257caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov errs() << "Not implemented yet\n"; 64357caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov abort(); 64457caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov} 64557caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov 646ab3b3651add0915a5a051b177029ad117a877f52Matt Fleming/// EmitRawText - If this file is backed by an assembly streamer, this dumps 64791bead790518fcf5cb26019fb1ebf2372e8a5b3fChris Lattner/// the specified string in the output .s file. This capability is 64891bead790518fcf5cb26019fb1ebf2372e8a5b3fChris Lattner/// indicated by the hasRawTextSupport() predicate. 64991bead790518fcf5cb26019fb1ebf2372e8a5b3fChris Lattnervoid MCStreamer::EmitRawText(StringRef String) { 65091bead790518fcf5cb26019fb1ebf2372e8a5b3fChris Lattner errs() << "EmitRawText called on an MCStreamer that doesn't support it, " 65191bead790518fcf5cb26019fb1ebf2372e8a5b3fChris Lattner " something must not be fully mc'ized\n"; 65291bead790518fcf5cb26019fb1ebf2372e8a5b3fChris Lattner abort(); 65391bead790518fcf5cb26019fb1ebf2372e8a5b3fChris Lattner} 65458bc4dd4a91443ddd3120b0a2f1801ad4d6aae1cChris Lattner 65558bc4dd4a91443ddd3120b0a2f1801ad4d6aae1cChris Lattnervoid MCStreamer::EmitRawText(const Twine &T) { 65658bc4dd4a91443ddd3120b0a2f1801ad4d6aae1cChris Lattner SmallString<128> Str; 65758bc4dd4a91443ddd3120b0a2f1801ad4d6aae1cChris Lattner T.toVector(Str); 65858bc4dd4a91443ddd3120b0a2f1801ad4d6aae1cChris Lattner EmitRawText(Str.str()); 65958bc4dd4a91443ddd3120b0a2f1801ad4d6aae1cChris Lattner} 660c25dad8750083829d9a8935ce40d0734e5488f8eRafael Espindola 661c25dad8750083829d9a8935ce40d0734e5488f8eRafael Espindolavoid MCStreamer::EmitFrames(bool usingCFI) { 662c25dad8750083829d9a8935ce40d0734e5488f8eRafael Espindola if (!getNumFrameInfos()) 663c25dad8750083829d9a8935ce40d0734e5488f8eRafael Espindola return; 664c25dad8750083829d9a8935ce40d0734e5488f8eRafael Espindola 665c25dad8750083829d9a8935ce40d0734e5488f8eRafael Espindola if (EmitEHFrame) 66640a7dbbeff44c4cbd8c7e4f07f28dd614f8a5d08Rafael Espindola MCDwarfFrameEmitter::Emit(*this, usingCFI, true); 66740a7dbbeff44c4cbd8c7e4f07f28dd614f8a5d08Rafael Espindola 66840a7dbbeff44c4cbd8c7e4f07f28dd614f8a5d08Rafael Espindola if (EmitDebugFrame) 66940a7dbbeff44c4cbd8c7e4f07f28dd614f8a5d08Rafael Espindola MCDwarfFrameEmitter::Emit(*this, usingCFI, false); 670c25dad8750083829d9a8935ce40d0734e5488f8eRafael Espindola} 67138ea9eecd7c810e11f96c8306b241f9db88fc62fCharles Davis 67238ea9eecd7c810e11f96c8306b241f9db88fc62fCharles Davisvoid MCStreamer::EmitW64Tables() { 67338ea9eecd7c810e11f96c8306b241f9db88fc62fCharles Davis if (!getNumW64UnwindInfos()) 67438ea9eecd7c810e11f96c8306b241f9db88fc62fCharles Davis return; 67538ea9eecd7c810e11f96c8306b241f9db88fc62fCharles Davis 67638ea9eecd7c810e11f96c8306b241f9db88fc62fCharles Davis MCWin64EHUnwindEmitter::Emit(*this); 67738ea9eecd7c810e11f96c8306b241f9db88fc62fCharles Davis} 67899b4237c1647156f0e1d3d7e03efdab23ed79778Rafael Espindola 67999b4237c1647156f0e1d3d7e03efdab23ed79778Rafael Espindolavoid MCStreamer::Finish() { 68099b4237c1647156f0e1d3d7e03efdab23ed79778Rafael Espindola if (!FrameInfos.empty() && !FrameInfos.back().End) 68199b4237c1647156f0e1d3d7e03efdab23ed79778Rafael Espindola report_fatal_error("Unfinished frame!"); 68299b4237c1647156f0e1d3d7e03efdab23ed79778Rafael Espindola 68399b4237c1647156f0e1d3d7e03efdab23ed79778Rafael Espindola FinishImpl(); 68499b4237c1647156f0e1d3d7e03efdab23ed79778Rafael Espindola} 685