MCStreamer.cpp revision d967578a8c506be341d20a1558eebb31484b8b6d
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), 2540de0e013a456971697491b428fb903570e8766eCharles Davis CurrentW64UnwindInfo(0) { 267d0805dcb82e9ba1d90ce8d702169683b9caded7Joerg Sonnenberger const MCSection *section = NULL; 277d0805dcb82e9ba1d90ce8d702169683b9caded7Joerg Sonnenberger SectionStack.push_back(std::make_pair(section, section)); 28a11af531ec48ad84f790b9511f003ac5c934a999Daniel Dunbar} 29a11af531ec48ad84f790b9511f003ac5c934a999Daniel Dunbar 30a11af531ec48ad84f790b9511f003ac5c934a999Daniel DunbarMCStreamer::~MCStreamer() { 314eeb7b662b78f5c520fb258b3f9df18b1227cde5Charles Davis for (unsigned i = 0; i < getNumW64UnwindInfos(); ++i) 324eeb7b662b78f5c520fb258b3f9df18b1227cde5Charles Davis delete W64UnwindInfos[i]; 33a11af531ec48ad84f790b9511f003ac5c934a999Daniel Dunbar} 34ddf6bdde44287b5b559bc403a02ff971e15e8303Chris Lattner 35a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindolaconst MCExpr *MCStreamer::BuildSymbolDiff(MCContext &Context, 36a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola const MCSymbol *A, 37a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola const MCSymbol *B) { 38a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola MCSymbolRefExpr::VariantKind Variant = MCSymbolRefExpr::VK_None; 39a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola const MCExpr *ARef = 40a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola MCSymbolRefExpr::Create(A, Variant, Context); 41a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola const MCExpr *BRef = 42a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola MCSymbolRefExpr::Create(B, Variant, Context); 43a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola const MCExpr *AddrDelta = 44a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola MCBinaryExpr::Create(MCBinaryExpr::Sub, ARef, BRef, Context); 45a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola return AddrDelta; 46a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola} 47a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola 48a6f2678f08299f053feb58337fc4322131d99bf4Rafael Espindolaconst MCExpr *MCStreamer::ForceExpAbs(const MCExpr* Expr) { 4978ff647e4471c88c3a3826e7ac24adcd8a9a2073Rafael Espindola if (Context.getAsmInfo().hasAggressiveSymbolFolding() || 5078ff647e4471c88c3a3826e7ac24adcd8a9a2073Rafael Espindola isa<MCSymbolRefExpr>(Expr)) 51a6f2678f08299f053feb58337fc4322131d99bf4Rafael Espindola return Expr; 52a6f2678f08299f053feb58337fc4322131d99bf4Rafael Espindola 53a6f2678f08299f053feb58337fc4322131d99bf4Rafael Espindola MCSymbol *ABS = Context.CreateTempSymbol(); 54a6f2678f08299f053feb58337fc4322131d99bf4Rafael Espindola EmitAssignment(ABS, Expr); 55a6f2678f08299f053feb58337fc4322131d99bf4Rafael Espindola return MCSymbolRefExpr::Create(ABS, Context); 56a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola} 57a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola 58d79d9dce47d505369662ae5111dba24f9ccdef68Chris Lattnerraw_ostream &MCStreamer::GetCommentOS() { 59d79d9dce47d505369662ae5111dba24f9ccdef68Chris Lattner // By default, discard comments. 60d79d9dce47d505369662ae5111dba24f9ccdef68Chris Lattner return nulls(); 61d79d9dce47d505369662ae5111dba24f9ccdef68Chris Lattner} 62d79d9dce47d505369662ae5111dba24f9ccdef68Chris Lattner 6332a006e606742b1c5401e49607e33717bb5441f0Rafael Espindolavoid MCStreamer::EmitDwarfSetLineAddr(int64_t LineDelta, 6432a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola const MCSymbol *Label, int PointerSize) { 6532a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola // emit the sequence to set the address 6632a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola EmitIntValue(dwarf::DW_LNS_extended_op, 1); 6732a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola EmitULEB128IntValue(PointerSize + 1); 6832a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola EmitIntValue(dwarf::DW_LNE_set_address, 1); 6932a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola EmitSymbolValue(Label, PointerSize); 7032a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola 7132a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola // emit the sequence for the LineDelta (from 1) and a zero address delta. 7232a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola MCDwarfLineAddr::Emit(this, LineDelta, 0); 7332a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola} 74d79d9dce47d505369662ae5111dba24f9ccdef68Chris Lattner 7532ae3fe0ba469240753e2342e36485f7c9acfb5cChris Lattner/// EmitIntValue - Special case of EmitValue that avoids the client having to 7632ae3fe0ba469240753e2342e36485f7c9acfb5cChris Lattner/// pass in a MCExpr for constant integers. 7732ae3fe0ba469240753e2342e36485f7c9acfb5cChris Lattnervoid MCStreamer::EmitIntValue(uint64_t Value, unsigned Size, 7832ae3fe0ba469240753e2342e36485f7c9acfb5cChris Lattner unsigned AddrSpace) { 79dea914bed9fb1d5c08e944557989ccddb6849000Devang Patel assert(Size <= 8 && "Invalid size"); 80818b5f5dd7979b097564f829896353df286127ffMatt Beaumont-Gay assert((isUIntN(8 * Size, Value) || isIntN(8 * Size, Value)) && 81818b5f5dd7979b097564f829896353df286127ffMatt Beaumont-Gay "Invalid size"); 822df042cb32ecb8d2e1d499dfa27d5074c8b40e13Rafael Espindola char buf[8]; 831be0e271a07925b928ba89848934f1ea6f1854e2Evan Cheng const bool isLittleEndian = Context.getAsmInfo().isLittleEndian(); 8465891533a3b35d7fc8fa807a96b7ee2f09ff22b5Roman Divacky for (unsigned i = 0; i != Size; ++i) { 8565891533a3b35d7fc8fa807a96b7ee2f09ff22b5Roman Divacky unsigned index = isLittleEndian ? i : (Size - i - 1); 8665891533a3b35d7fc8fa807a96b7ee2f09ff22b5Roman Divacky buf[i] = uint8_t(Value >> (index * 8)); 8765891533a3b35d7fc8fa807a96b7ee2f09ff22b5Roman Divacky } 882df042cb32ecb8d2e1d499dfa27d5074c8b40e13Rafael Espindola EmitBytes(StringRef(buf, Size), AddrSpace); 8932ae3fe0ba469240753e2342e36485f7c9acfb5cChris Lattner} 9032ae3fe0ba469240753e2342e36485f7c9acfb5cChris Lattner 913ff57094a7d176a759ddb1e1668489d89064f56cRafael Espindola/// EmitULEB128Value - Special case of EmitULEB128Value that avoids the 923ff57094a7d176a759ddb1e1668489d89064f56cRafael Espindola/// client having to pass in a MCExpr for constant integers. 933ff57094a7d176a759ddb1e1668489d89064f56cRafael Espindolavoid MCStreamer::EmitULEB128IntValue(uint64_t Value, unsigned AddrSpace) { 94660b5fc4d019bf22fbe14dfb81c5b59444fa3506Rafael Espindola SmallString<32> Tmp; 95660b5fc4d019bf22fbe14dfb81c5b59444fa3506Rafael Espindola raw_svector_ostream OSE(Tmp); 96660b5fc4d019bf22fbe14dfb81c5b59444fa3506Rafael Espindola MCObjectWriter::EncodeULEB128(Value, OSE); 97660b5fc4d019bf22fbe14dfb81c5b59444fa3506Rafael Espindola EmitBytes(OSE.str(), AddrSpace); 98c095793b4ab027181605c79c9808df12afe45d63Kevin Enderby} 99c095793b4ab027181605c79c9808df12afe45d63Kevin Enderby 1003ff57094a7d176a759ddb1e1668489d89064f56cRafael Espindola/// EmitSLEB128Value - Special case of EmitSLEB128Value that avoids the 1013ff57094a7d176a759ddb1e1668489d89064f56cRafael Espindola/// client having to pass in a MCExpr for constant integers. 1023ff57094a7d176a759ddb1e1668489d89064f56cRafael Espindolavoid MCStreamer::EmitSLEB128IntValue(int64_t Value, unsigned AddrSpace) { 103660b5fc4d019bf22fbe14dfb81c5b59444fa3506Rafael Espindola SmallString<32> Tmp; 104660b5fc4d019bf22fbe14dfb81c5b59444fa3506Rafael Espindola raw_svector_ostream OSE(Tmp); 105660b5fc4d019bf22fbe14dfb81c5b59444fa3506Rafael Espindola MCObjectWriter::EncodeSLEB128(Value, OSE); 106660b5fc4d019bf22fbe14dfb81c5b59444fa3506Rafael Espindola EmitBytes(OSE.str(), AddrSpace); 107c095793b4ab027181605c79c9808df12afe45d63Kevin Enderby} 108c095793b4ab027181605c79c9808df12afe45d63Kevin Enderby 1090bbe0b440ee2cef47dcb7b281825eb70341c16ddRafael Espindolavoid MCStreamer::EmitAbsValue(const MCExpr *Value, unsigned Size, 1100bbe0b440ee2cef47dcb7b281825eb70341c16ddRafael Espindola unsigned AddrSpace) { 111a6f2678f08299f053feb58337fc4322131d99bf4Rafael Espindola const MCExpr *ABS = ForceExpAbs(Value); 112a6f2678f08299f053feb58337fc4322131d99bf4Rafael Espindola EmitValue(ABS, Size, AddrSpace); 1130bbe0b440ee2cef47dcb7b281825eb70341c16ddRafael Espindola} 1140bbe0b440ee2cef47dcb7b281825eb70341c16ddRafael Espindola 11589b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola 11689b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindolavoid MCStreamer::EmitValue(const MCExpr *Value, unsigned Size, 11789b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola unsigned AddrSpace) { 118debd7e4e8bc5cfe61bfb71835ce2b1a3fbccc2beRafael Espindola EmitValueImpl(Value, Size, AddrSpace); 11989b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola} 12089b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola 12189b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindolavoid MCStreamer::EmitSymbolValue(const MCSymbol *Sym, unsigned Size, 122debd7e4e8bc5cfe61bfb71835ce2b1a3fbccc2beRafael Espindola unsigned AddrSpace) { 123debd7e4e8bc5cfe61bfb71835ce2b1a3fbccc2beRafael Espindola EmitValueImpl(MCSymbolRefExpr::Create(Sym, getContext()), Size, 12489b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola AddrSpace); 12589b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola} 12689b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola 1273e03211625bba5bbb70a193c140ebf4dd8388bb7Rafael Espindolavoid MCStreamer::EmitGPRel32Value(const MCExpr *Value) { 1283e03211625bba5bbb70a193c140ebf4dd8388bb7Rafael Espindola report_fatal_error("unsupported directive in streamer"); 1293e03211625bba5bbb70a193c140ebf4dd8388bb7Rafael Espindola} 1303e03211625bba5bbb70a193c140ebf4dd8388bb7Rafael Espindola 131ddf6bdde44287b5b559bc403a02ff971e15e8303Chris Lattner/// EmitFill - Emit NumBytes bytes worth of the value specified by 132ddf6bdde44287b5b559bc403a02ff971e15e8303Chris Lattner/// FillValue. This implements directives such as '.space'. 133aaec205b87637cd0d59d4f11630db603686eb73dChris Lattnervoid MCStreamer::EmitFill(uint64_t NumBytes, uint8_t FillValue, 134aaec205b87637cd0d59d4f11630db603686eb73dChris Lattner unsigned AddrSpace) { 135ddf6bdde44287b5b559bc403a02ff971e15e8303Chris Lattner const MCExpr *E = MCConstantExpr::Create(FillValue, getContext()); 136ddf6bdde44287b5b559bc403a02ff971e15e8303Chris Lattner for (uint64_t i = 0, e = NumBytes; i != e; ++i) 137aaec205b87637cd0d59d4f11630db603686eb73dChris Lattner EmitValue(E, 1, AddrSpace); 138ddf6bdde44287b5b559bc403a02ff971e15e8303Chris Lattner} 13991bead790518fcf5cb26019fb1ebf2372e8a5b3fChris Lattner 140af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindolabool MCStreamer::EmitDwarfFileDirective(unsigned FileNo, 141af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindola StringRef Filename) { 142af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindola return getContext().GetDwarfFile(Filename, FileNo) == 0; 143af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindola} 144af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindola 145af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindolavoid MCStreamer::EmitDwarfLocDirective(unsigned FileNo, unsigned Line, 146af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindola unsigned Column, unsigned Flags, 147af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindola unsigned Isa, 1483f3bf9387b75f4c932e4c59bd7af719d26ae4b99Devang Patel unsigned Discriminator, 1493f3bf9387b75f4c932e4c59bd7af719d26ae4b99Devang Patel StringRef FileName) { 150af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindola getContext().setCurrentDwarfLoc(FileNo, Line, Column, Flags, Isa, 151af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindola Discriminator); 152af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindola} 153af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindola 15489b9372605db2ce3b0085c84089e389f7bc1fbddRafael EspindolaMCDwarfFrameInfo *MCStreamer::getCurrentFrameInfo() { 15589b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola if (FrameInfos.empty()) 15689b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola return NULL; 15789b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola return &FrameInfos.back(); 15889b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola} 15989b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola 16089b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindolavoid MCStreamer::EnsureValidFrame() { 16189b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 16289b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola if (!CurFrame || CurFrame->End) 16389b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola report_fatal_error("No open frame"); 16489b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola} 16589b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola 1668bca4106dfc2945723251db10e340183f3e372ddRafael Espindolavoid MCStreamer::EmitEHSymAttributes(const MCSymbol *Symbol, 1678bca4106dfc2945723251db10e340183f3e372ddRafael Espindola MCSymbol *EHSymbol) { 1688bca4106dfc2945723251db10e340183f3e372ddRafael Espindola} 1698bca4106dfc2945723251db10e340183f3e372ddRafael Espindola 170ed708f9c1facb9928ef2f79503e7030c8f25b00dRafael Espindolavoid MCStreamer::EmitLabel(MCSymbol *Symbol) { 171ed708f9c1facb9928ef2f79503e7030c8f25b00dRafael Espindola assert(!Symbol->isVariable() && "Cannot emit a variable symbol!"); 172ed708f9c1facb9928ef2f79503e7030c8f25b00dRafael Espindola assert(getCurrentSection() && "Cannot emit before setting section!"); 173ed708f9c1facb9928ef2f79503e7030c8f25b00dRafael Espindola Symbol->setSection(*getCurrentSection()); 174ed708f9c1facb9928ef2f79503e7030c8f25b00dRafael Espindola 175ed708f9c1facb9928ef2f79503e7030c8f25b00dRafael Espindola StringRef Prefix = getContext().getAsmInfo().getPrivateGlobalPrefix(); 176ed708f9c1facb9928ef2f79503e7030c8f25b00dRafael Espindola if (!Symbol->getName().startswith(Prefix)) 177ed708f9c1facb9928ef2f79503e7030c8f25b00dRafael Espindola LastNonPrivate = Symbol; 178ed708f9c1facb9928ef2f79503e7030c8f25b00dRafael Espindola} 179ed708f9c1facb9928ef2f79503e7030c8f25b00dRafael Espindola 180d967578a8c506be341d20a1558eebb31484b8b6dBill Wendlingvoid MCStreamer::EmitCompactUnwindEncoding(uint32_t CompactUnwindEncoding) { 181d967578a8c506be341d20a1558eebb31484b8b6dBill Wendling EnsureValidFrame(); 182d967578a8c506be341d20a1558eebb31484b8b6dBill Wendling MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 183d967578a8c506be341d20a1558eebb31484b8b6dBill Wendling CurFrame->CompactUnwindEncoding = CompactUnwindEncoding; 184d967578a8c506be341d20a1558eebb31484b8b6dBill Wendling} 185d967578a8c506be341d20a1558eebb31484b8b6dBill Wendling 186f9efd83166401bca542c6702ea329f9901c4e04bRafael Espindolavoid MCStreamer::EmitCFISections(bool EH, bool Debug) { 187713c4bfc36260bfc9273d414b14757bd7819f9b1Rafael Espindola assert(EH || Debug); 188f9efd83166401bca542c6702ea329f9901c4e04bRafael Espindola EmitEHFrame = EH; 189f9efd83166401bca542c6702ea329f9901c4e04bRafael Espindola EmitDebugFrame = Debug; 190f9efd83166401bca542c6702ea329f9901c4e04bRafael Espindola} 191f9efd83166401bca542c6702ea329f9901c4e04bRafael Espindola 192066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindolavoid MCStreamer::EmitCFIStartProc() { 19389b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 194066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindola if (CurFrame && !CurFrame->End) 19589b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola report_fatal_error("Starting a frame before finishing the previous one!"); 1965bba08425374ca36fe5fbc7423ce1a09858e4097Rafael Espindola MCDwarfFrameInfo Frame; 19789b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola Frame.Begin = getContext().CreateTempSymbol(); 198ed708f9c1facb9928ef2f79503e7030c8f25b00dRafael Espindola Frame.Function = LastNonPrivate; 19989b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola EmitLabel(Frame.Begin); 20089b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola FrameInfos.push_back(Frame); 201cdfecc8759941c2996214070478d30084b79d463Rafael Espindola} 202cdfecc8759941c2996214070478d30084b79d463Rafael Espindola 203066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindolavoid MCStreamer::EmitCFIEndProc() { 20489b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola EnsureValidFrame(); 20589b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 20689b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola CurFrame->End = getContext().CreateTempSymbol(); 20789b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola EmitLabel(CurFrame->End); 208cdfecc8759941c2996214070478d30084b79d463Rafael Espindola} 209cdfecc8759941c2996214070478d30084b79d463Rafael Espindola 210066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindolavoid MCStreamer::EmitCFIDefCfa(int64_t Register, int64_t Offset) { 211b40a71fda188f8ca564e606ac2cb051a44ada311Rafael Espindola EnsureValidFrame(); 212b40a71fda188f8ca564e606ac2cb051a44ada311Rafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 213b40a71fda188f8ca564e606ac2cb051a44ada311Rafael Espindola MCSymbol *Label = getContext().CreateTempSymbol(); 214b40a71fda188f8ca564e606ac2cb051a44ada311Rafael Espindola EmitLabel(Label); 215b40a71fda188f8ca564e606ac2cb051a44ada311Rafael Espindola MachineLocation Dest(MachineLocation::VirtualFP); 216b40a71fda188f8ca564e606ac2cb051a44ada311Rafael Espindola MachineLocation Source(Register, -Offset); 217b40a71fda188f8ca564e606ac2cb051a44ada311Rafael Espindola MCCFIInstruction Instruction(Label, Dest, Source); 218b40a71fda188f8ca564e606ac2cb051a44ada311Rafael Espindola CurFrame->Instructions.push_back(Instruction); 219b40a71fda188f8ca564e606ac2cb051a44ada311Rafael Espindola} 220b40a71fda188f8ca564e606ac2cb051a44ada311Rafael Espindola 221066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindolavoid MCStreamer::EmitCFIDefCfaOffset(int64_t Offset) { 22289b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola EnsureValidFrame(); 2235bba08425374ca36fe5fbc7423ce1a09858e4097Rafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 2245bba08425374ca36fe5fbc7423ce1a09858e4097Rafael Espindola MCSymbol *Label = getContext().CreateTempSymbol(); 2255bba08425374ca36fe5fbc7423ce1a09858e4097Rafael Espindola EmitLabel(Label); 2265bba08425374ca36fe5fbc7423ce1a09858e4097Rafael Espindola MachineLocation Dest(MachineLocation::VirtualFP); 2275bba08425374ca36fe5fbc7423ce1a09858e4097Rafael Espindola MachineLocation Source(MachineLocation::VirtualFP, -Offset); 228fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola MCCFIInstruction Instruction(Label, Dest, Source); 229fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola CurFrame->Instructions.push_back(Instruction); 230cdfecc8759941c2996214070478d30084b79d463Rafael Espindola} 231cdfecc8759941c2996214070478d30084b79d463Rafael Espindola 2325d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962Rafael Espindolavoid MCStreamer::EmitCFIAdjustCfaOffset(int64_t Adjustment) { 2335d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962Rafael Espindola EnsureValidFrame(); 2345d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962Rafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 2355d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962Rafael Espindola MCSymbol *Label = getContext().CreateTempSymbol(); 2365d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962Rafael Espindola EmitLabel(Label); 2375d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962Rafael Espindola MachineLocation Dest(MachineLocation::VirtualFP); 2385d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962Rafael Espindola MachineLocation Source(MachineLocation::VirtualFP, Adjustment); 2395d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962Rafael Espindola MCCFIInstruction Instruction(MCCFIInstruction::RelMove, Label, Dest, Source); 2405d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962Rafael Espindola CurFrame->Instructions.push_back(Instruction); 2415d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962Rafael Espindola} 2425d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962Rafael Espindola 243066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindolavoid MCStreamer::EmitCFIDefCfaRegister(int64_t Register) { 24489b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola EnsureValidFrame(); 245b4601bd2ffdde372f1323f6b6ec98acd433501ceRafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 246b4601bd2ffdde372f1323f6b6ec98acd433501ceRafael Espindola MCSymbol *Label = getContext().CreateTempSymbol(); 247b4601bd2ffdde372f1323f6b6ec98acd433501ceRafael Espindola EmitLabel(Label); 248b4601bd2ffdde372f1323f6b6ec98acd433501ceRafael Espindola MachineLocation Dest(Register); 249b4601bd2ffdde372f1323f6b6ec98acd433501ceRafael Espindola MachineLocation Source(MachineLocation::VirtualFP); 250b4601bd2ffdde372f1323f6b6ec98acd433501ceRafael Espindola MCCFIInstruction Instruction(Label, Dest, Source); 251b4601bd2ffdde372f1323f6b6ec98acd433501ceRafael Espindola CurFrame->Instructions.push_back(Instruction); 252cdfecc8759941c2996214070478d30084b79d463Rafael Espindola} 253cdfecc8759941c2996214070478d30084b79d463Rafael Espindola 254066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindolavoid MCStreamer::EmitCFIOffset(int64_t Register, int64_t Offset) { 25589b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola EnsureValidFrame(); 256b790a17efba26f4365b5ffb847dd53fde063c48dRafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 257b790a17efba26f4365b5ffb847dd53fde063c48dRafael Espindola MCSymbol *Label = getContext().CreateTempSymbol(); 258b790a17efba26f4365b5ffb847dd53fde063c48dRafael Espindola EmitLabel(Label); 259b790a17efba26f4365b5ffb847dd53fde063c48dRafael Espindola MachineLocation Dest(Register, Offset); 260b790a17efba26f4365b5ffb847dd53fde063c48dRafael Espindola MachineLocation Source(Register, Offset); 261b790a17efba26f4365b5ffb847dd53fde063c48dRafael Espindola MCCFIInstruction Instruction(Label, Dest, Source); 262b790a17efba26f4365b5ffb847dd53fde063c48dRafael Espindola CurFrame->Instructions.push_back(Instruction); 263cdfecc8759941c2996214070478d30084b79d463Rafael Espindola} 264cdfecc8759941c2996214070478d30084b79d463Rafael Espindola 26525f492e77858dc5a95fcd7180e73aff47925b668Rafael Espindolavoid MCStreamer::EmitCFIRelOffset(int64_t Register, int64_t Offset) { 26625f492e77858dc5a95fcd7180e73aff47925b668Rafael Espindola EnsureValidFrame(); 26725f492e77858dc5a95fcd7180e73aff47925b668Rafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 26825f492e77858dc5a95fcd7180e73aff47925b668Rafael Espindola MCSymbol *Label = getContext().CreateTempSymbol(); 26925f492e77858dc5a95fcd7180e73aff47925b668Rafael Espindola EmitLabel(Label); 27025f492e77858dc5a95fcd7180e73aff47925b668Rafael Espindola MachineLocation Dest(Register, Offset); 27125f492e77858dc5a95fcd7180e73aff47925b668Rafael Espindola MachineLocation Source(Register, Offset); 27225f492e77858dc5a95fcd7180e73aff47925b668Rafael Espindola MCCFIInstruction Instruction(MCCFIInstruction::RelMove, Label, Dest, Source); 27325f492e77858dc5a95fcd7180e73aff47925b668Rafael Espindola CurFrame->Instructions.push_back(Instruction); 27425f492e77858dc5a95fcd7180e73aff47925b668Rafael Espindola} 27525f492e77858dc5a95fcd7180e73aff47925b668Rafael Espindola 276066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindolavoid MCStreamer::EmitCFIPersonality(const MCSymbol *Sym, 2773a83c40ab61d5ca624f2bbadd70237c6adbdb304Rafael Espindola unsigned Encoding) { 27889b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola EnsureValidFrame(); 27989b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 28089b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola CurFrame->Personality = Sym; 2813a83c40ab61d5ca624f2bbadd70237c6adbdb304Rafael Espindola CurFrame->PersonalityEncoding = Encoding; 282cdfecc8759941c2996214070478d30084b79d463Rafael Espindola} 283cdfecc8759941c2996214070478d30084b79d463Rafael Espindola 284066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindolavoid MCStreamer::EmitCFILsda(const MCSymbol *Sym, unsigned Encoding) { 28589b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola EnsureValidFrame(); 28689b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 28789b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola CurFrame->Lsda = Sym; 288bdc3167c086dd4358e24692075db5e7784140843Rafael Espindola CurFrame->LsdaEncoding = Encoding; 289cdfecc8759941c2996214070478d30084b79d463Rafael Espindola} 290cdfecc8759941c2996214070478d30084b79d463Rafael Espindola 291066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindolavoid MCStreamer::EmitCFIRememberState() { 292fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola EnsureValidFrame(); 293fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 294fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola MCSymbol *Label = getContext().CreateTempSymbol(); 295fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola EmitLabel(Label); 296fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola MCCFIInstruction Instruction(MCCFIInstruction::Remember, Label); 297fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola CurFrame->Instructions.push_back(Instruction); 298fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola} 299fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola 300066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindolavoid MCStreamer::EmitCFIRestoreState() { 301fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola // FIXME: Error if there is no matching cfi_remember_state. 302fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola EnsureValidFrame(); 303fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 304fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola MCSymbol *Label = getContext().CreateTempSymbol(); 305fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola EmitLabel(Label); 306fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola MCCFIInstruction Instruction(MCCFIInstruction::Restore, Label); 307fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola CurFrame->Instructions.push_back(Instruction); 308fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola} 309fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola 310c57543964d1382d3d3a5005f415b6c0f49671b3aRafael Espindolavoid MCStreamer::EmitCFISameValue(int64_t Register) { 311c57543964d1382d3d3a5005f415b6c0f49671b3aRafael Espindola EnsureValidFrame(); 312c57543964d1382d3d3a5005f415b6c0f49671b3aRafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 313c57543964d1382d3d3a5005f415b6c0f49671b3aRafael Espindola MCSymbol *Label = getContext().CreateTempSymbol(); 314c57543964d1382d3d3a5005f415b6c0f49671b3aRafael Espindola EmitLabel(Label); 315c57543964d1382d3d3a5005f415b6c0f49671b3aRafael Espindola MCCFIInstruction Instruction(MCCFIInstruction::SameValue, Label, Register); 316c57543964d1382d3d3a5005f415b6c0f49671b3aRafael Espindola CurFrame->Instructions.push_back(Instruction); 317c57543964d1382d3d3a5005f415b6c0f49671b3aRafael Espindola} 318c57543964d1382d3d3a5005f415b6c0f49671b3aRafael Espindola 31991d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davisvoid MCStreamer::setCurrentW64UnwindInfo(MCWin64EHUnwindInfo *Frame) { 320ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis W64UnwindInfos.push_back(Frame); 321ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis CurrentW64UnwindInfo = W64UnwindInfos.back(); 3229c77398d1c89f615735d304cd7eda3c3e9b1504fCharles Davis} 3239c77398d1c89f615735d304cd7eda3c3e9b1504fCharles Davis 3240855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davisvoid MCStreamer::EnsureValidW64UnwindInfo() { 32591d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 3260855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis if (!CurFrame || CurFrame->End) 3270855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis report_fatal_error("No open Win64 EH frame function!"); 3280855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis} 3290855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis 330fbc539ff37ddd08c2480be9185e7a40919ce8940Charles Davisvoid MCStreamer::EmitWin64EHStartProc(const MCSymbol *Symbol) { 33191d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 3320855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis if (CurFrame && !CurFrame->End) 3330855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis report_fatal_error("Starting a function before ending the previous one!"); 3344eeb7b662b78f5c520fb258b3f9df18b1227cde5Charles Davis MCWin64EHUnwindInfo *Frame = new MCWin64EHUnwindInfo; 335ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis Frame->Begin = getContext().CreateTempSymbol(); 336ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis Frame->Function = Symbol; 337ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis EmitLabel(Frame->Begin); 338ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis setCurrentW64UnwindInfo(Frame); 3390855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis} 3400855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis 3410855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davisvoid MCStreamer::EmitWin64EHEndProc() { 3420855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis EnsureValidW64UnwindInfo(); 34391d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 34491d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis if (CurFrame->ChainedParent) 3450855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis report_fatal_error("Not all chained regions terminated!"); 3460855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis CurFrame->End = getContext().CreateTempSymbol(); 3470855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis EmitLabel(CurFrame->End); 348ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis} 349ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis 350440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davisvoid MCStreamer::EmitWin64EHStartChained() { 35191d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis EnsureValidW64UnwindInfo(); 3524eeb7b662b78f5c520fb258b3f9df18b1227cde5Charles Davis MCWin64EHUnwindInfo *Frame = new MCWin64EHUnwindInfo; 35391d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 354ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis Frame->Begin = getContext().CreateTempSymbol(); 355ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis Frame->Function = CurFrame->Function; 356ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis Frame->ChainedParent = CurFrame; 357ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis EmitLabel(Frame->Begin); 358ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis setCurrentW64UnwindInfo(Frame); 359f07090134d06e0cf3508e8b8e87d775f0a7982c1Charles Davis} 360f07090134d06e0cf3508e8b8e87d775f0a7982c1Charles Davis 361440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davisvoid MCStreamer::EmitWin64EHEndChained() { 36291d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis EnsureValidW64UnwindInfo(); 36391d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 36491d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis if (!CurFrame->ChainedParent) 36591d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis report_fatal_error("End of a chained region outside a chained region!"); 36691d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis CurFrame->End = getContext().CreateTempSymbol(); 36791d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis EmitLabel(CurFrame->End); 36891d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis CurrentW64UnwindInfo = CurFrame->ChainedParent; 369f07090134d06e0cf3508e8b8e87d775f0a7982c1Charles Davis} 370f07090134d06e0cf3508e8b8e87d775f0a7982c1Charles Davis 371440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davisvoid MCStreamer::EmitWin64EHHandler(const MCSymbol *Sym, bool Unwind, 372440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davis bool Except) { 373440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davis EnsureValidW64UnwindInfo(); 374440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 37581f3830f2ed0b26e8bd7ae62e127db427f9f350dCharles Davis if (CurFrame->ChainedParent) 37681f3830f2ed0b26e8bd7ae62e127db427f9f350dCharles Davis report_fatal_error("Chained unwind areas can't have handlers!"); 377440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davis CurFrame->ExceptionHandler = Sym; 378321fe74b2d40d7762175fbd3054fda00b5e70833Charles Davis if (!Except && !Unwind) 379440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davis report_fatal_error("Don't know what kind of handler this is!"); 380321fe74b2d40d7762175fbd3054fda00b5e70833Charles Davis if (Unwind) 381321fe74b2d40d7762175fbd3054fda00b5e70833Charles Davis CurFrame->HandlesUnwind = true; 382321fe74b2d40d7762175fbd3054fda00b5e70833Charles Davis if (Except) 383321fe74b2d40d7762175fbd3054fda00b5e70833Charles Davis CurFrame->HandlesExceptions = true; 384440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davis} 385440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davis 386440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davisvoid MCStreamer::EmitWin64EHHandlerData() { 387d0b76d00048352affac4fad0ef005e28f5340b76Charles Davis EnsureValidW64UnwindInfo(); 38881f3830f2ed0b26e8bd7ae62e127db427f9f350dCharles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 38981f3830f2ed0b26e8bd7ae62e127db427f9f350dCharles Davis if (CurFrame->ChainedParent) 39081f3830f2ed0b26e8bd7ae62e127db427f9f350dCharles Davis report_fatal_error("Chained unwind areas can't have handlers!"); 391f07090134d06e0cf3508e8b8e87d775f0a7982c1Charles Davis} 392f07090134d06e0cf3508e8b8e87d775f0a7982c1Charles Davis 393c3b162857a587c9877e903f038471b882b213232Charles Davisvoid MCStreamer::EmitWin64EHPushReg(unsigned Register) { 394c3b162857a587c9877e903f038471b882b213232Charles Davis EnsureValidW64UnwindInfo(); 395c3b162857a587c9877e903f038471b882b213232Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 396c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis MCSymbol *Label = getContext().CreateTempSymbol(); 397c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis MCWin64EHInstruction Inst(Win64EH::UOP_PushNonVol, Label, Register); 398c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis EmitLabel(Label); 399c3b162857a587c9877e903f038471b882b213232Charles Davis CurFrame->Instructions.push_back(Inst); 400f07090134d06e0cf3508e8b8e87d775f0a7982c1Charles Davis} 401f07090134d06e0cf3508e8b8e87d775f0a7982c1Charles Davis 402c3b162857a587c9877e903f038471b882b213232Charles Davisvoid MCStreamer::EmitWin64EHSetFrame(unsigned Register, unsigned Offset) { 403c3b162857a587c9877e903f038471b882b213232Charles Davis EnsureValidW64UnwindInfo(); 404c2d3022aa6104a21f4368c522ccbf9a4d282b7c6Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 405c2d3022aa6104a21f4368c522ccbf9a4d282b7c6Charles Davis if (CurFrame->LastFrameInst >= 0) 406c2d3022aa6104a21f4368c522ccbf9a4d282b7c6Charles Davis report_fatal_error("Frame register and offset already specified!"); 407edeecbff0e231c04b7222a79a26017a48668f0e2Charles Davis if (Offset & 0x0F) 408edeecbff0e231c04b7222a79a26017a48668f0e2Charles Davis report_fatal_error("Misaligned frame pointer offset!"); 409c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis MCWin64EHInstruction Inst(Win64EH::UOP_SetFPReg, NULL, Register, Offset); 4105c2256a5719172273eaef198f92d8af924ff8623Charles Davis CurFrame->LastFrameInst = CurFrame->Instructions.size(); 411c3b162857a587c9877e903f038471b882b213232Charles Davis CurFrame->Instructions.push_back(Inst); 412ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis} 413ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis 414c3b162857a587c9877e903f038471b882b213232Charles Davisvoid MCStreamer::EmitWin64EHAllocStack(unsigned Size) { 415c3b162857a587c9877e903f038471b882b213232Charles Davis EnsureValidW64UnwindInfo(); 416edeecbff0e231c04b7222a79a26017a48668f0e2Charles Davis if (Size & 7) 417edeecbff0e231c04b7222a79a26017a48668f0e2Charles Davis report_fatal_error("Misaligned stack allocation!"); 418c3b162857a587c9877e903f038471b882b213232Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 419c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis MCSymbol *Label = getContext().CreateTempSymbol(); 420c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis MCWin64EHInstruction Inst(Label, Size); 421c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis EmitLabel(Label); 422c3b162857a587c9877e903f038471b882b213232Charles Davis CurFrame->Instructions.push_back(Inst); 423ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis} 424ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis 425c3b162857a587c9877e903f038471b882b213232Charles Davisvoid MCStreamer::EmitWin64EHSaveReg(unsigned Register, unsigned Offset) { 426c3b162857a587c9877e903f038471b882b213232Charles Davis EnsureValidW64UnwindInfo(); 427edeecbff0e231c04b7222a79a26017a48668f0e2Charles Davis if (Offset & 7) 428edeecbff0e231c04b7222a79a26017a48668f0e2Charles Davis report_fatal_error("Misaligned saved register offset!"); 429c3b162857a587c9877e903f038471b882b213232Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 430c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis MCSymbol *Label = getContext().CreateTempSymbol(); 431c3b162857a587c9877e903f038471b882b213232Charles Davis MCWin64EHInstruction Inst( 432c2d3022aa6104a21f4368c522ccbf9a4d282b7c6Charles Davis Offset > 512*1024-8 ? Win64EH::UOP_SaveNonVolBig : Win64EH::UOP_SaveNonVol, 433c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis Label, Register, Offset); 434c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis EmitLabel(Label); 435c3b162857a587c9877e903f038471b882b213232Charles Davis CurFrame->Instructions.push_back(Inst); 436ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis} 437ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis 438c3b162857a587c9877e903f038471b882b213232Charles Davisvoid MCStreamer::EmitWin64EHSaveXMM(unsigned Register, unsigned Offset) { 439c3b162857a587c9877e903f038471b882b213232Charles Davis EnsureValidW64UnwindInfo(); 440edeecbff0e231c04b7222a79a26017a48668f0e2Charles Davis if (Offset & 0x0F) 441edeecbff0e231c04b7222a79a26017a48668f0e2Charles Davis report_fatal_error("Misaligned saved vector register offset!"); 442c3b162857a587c9877e903f038471b882b213232Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 443c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis MCSymbol *Label = getContext().CreateTempSymbol(); 444c3b162857a587c9877e903f038471b882b213232Charles Davis MCWin64EHInstruction Inst( 445c2d3022aa6104a21f4368c522ccbf9a4d282b7c6Charles Davis Offset > 512*1024-16 ? Win64EH::UOP_SaveXMM128Big : Win64EH::UOP_SaveXMM128, 446c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis Label, Register, Offset); 447c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis EmitLabel(Label); 448c3b162857a587c9877e903f038471b882b213232Charles Davis CurFrame->Instructions.push_back(Inst); 449ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis} 450ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis 451440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davisvoid MCStreamer::EmitWin64EHPushFrame(bool Code) { 452c3b162857a587c9877e903f038471b882b213232Charles Davis EnsureValidW64UnwindInfo(); 453c3b162857a587c9877e903f038471b882b213232Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 454c2d3022aa6104a21f4368c522ccbf9a4d282b7c6Charles Davis if (CurFrame->Instructions.size() > 0) 455c2d3022aa6104a21f4368c522ccbf9a4d282b7c6Charles Davis report_fatal_error("If present, PushMachFrame must be the first UOP"); 456c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis MCSymbol *Label = getContext().CreateTempSymbol(); 457c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis MCWin64EHInstruction Inst(Win64EH::UOP_PushMachFrame, Label, Code); 458c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis EmitLabel(Label); 459c3b162857a587c9877e903f038471b882b213232Charles Davis CurFrame->Instructions.push_back(Inst); 460ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis} 461ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis 462440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davisvoid MCStreamer::EmitWin64EHEndProlog() { 46361558aaf4f924fd44fd2f275fcb7ab7199ede304Charles Davis EnsureValidW64UnwindInfo(); 46461558aaf4f924fd44fd2f275fcb7ab7199ede304Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 46561558aaf4f924fd44fd2f275fcb7ab7199ede304Charles Davis CurFrame->PrologEnd = getContext().CreateTempSymbol(); 46661558aaf4f924fd44fd2f275fcb7ab7199ede304Charles Davis EmitLabel(CurFrame->PrologEnd); 467cacdc4fc41f035c149d5f1b92acd587d475ffd58Charles Davis} 468cacdc4fc41f035c149d5f1b92acd587d475ffd58Charles Davis 469b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikovvoid MCStreamer::EmitFnStart() { 470b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov errs() << "Not implemented yet\n"; 471b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov abort(); 472b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov} 473b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov 474b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikovvoid MCStreamer::EmitFnEnd() { 475b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov errs() << "Not implemented yet\n"; 476b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov abort(); 477b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov} 478b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov 479b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikovvoid MCStreamer::EmitCantUnwind() { 480b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov errs() << "Not implemented yet\n"; 481b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov abort(); 482b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov} 483b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov 484b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikovvoid MCStreamer::EmitHandlerData() { 485b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov errs() << "Not implemented yet\n"; 486b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov abort(); 487b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov} 488b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov 489b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikovvoid MCStreamer::EmitPersonality(const MCSymbol *Personality) { 490b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov errs() << "Not implemented yet\n"; 491b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov abort(); 492b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov} 493b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov 49457caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikovvoid MCStreamer::EmitSetFP(unsigned FpReg, unsigned SpReg, int64_t Offset) { 49557caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov errs() << "Not implemented yet\n"; 49657caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov abort(); 49757caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov} 49857caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov 49957caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikovvoid MCStreamer::EmitPad(int64_t Offset) { 50057caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov errs() << "Not implemented yet\n"; 50157caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov abort(); 50257caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov} 50357caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov 50457caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikovvoid MCStreamer::EmitRegSave(const SmallVectorImpl<unsigned> &RegList, bool) { 50557caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov errs() << "Not implemented yet\n"; 50657caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov abort(); 50757caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov} 50857caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov 509ab3b3651add0915a5a051b177029ad117a877f52Matt Fleming/// EmitRawText - If this file is backed by an assembly streamer, this dumps 51091bead790518fcf5cb26019fb1ebf2372e8a5b3fChris Lattner/// the specified string in the output .s file. This capability is 51191bead790518fcf5cb26019fb1ebf2372e8a5b3fChris Lattner/// indicated by the hasRawTextSupport() predicate. 51291bead790518fcf5cb26019fb1ebf2372e8a5b3fChris Lattnervoid MCStreamer::EmitRawText(StringRef String) { 51391bead790518fcf5cb26019fb1ebf2372e8a5b3fChris Lattner errs() << "EmitRawText called on an MCStreamer that doesn't support it, " 51491bead790518fcf5cb26019fb1ebf2372e8a5b3fChris Lattner " something must not be fully mc'ized\n"; 51591bead790518fcf5cb26019fb1ebf2372e8a5b3fChris Lattner abort(); 51691bead790518fcf5cb26019fb1ebf2372e8a5b3fChris Lattner} 51758bc4dd4a91443ddd3120b0a2f1801ad4d6aae1cChris Lattner 51858bc4dd4a91443ddd3120b0a2f1801ad4d6aae1cChris Lattnervoid MCStreamer::EmitRawText(const Twine &T) { 51958bc4dd4a91443ddd3120b0a2f1801ad4d6aae1cChris Lattner SmallString<128> Str; 52058bc4dd4a91443ddd3120b0a2f1801ad4d6aae1cChris Lattner T.toVector(Str); 52158bc4dd4a91443ddd3120b0a2f1801ad4d6aae1cChris Lattner EmitRawText(Str.str()); 52258bc4dd4a91443ddd3120b0a2f1801ad4d6aae1cChris Lattner} 523c25dad8750083829d9a8935ce40d0734e5488f8eRafael Espindola 524c25dad8750083829d9a8935ce40d0734e5488f8eRafael Espindolavoid MCStreamer::EmitFrames(bool usingCFI) { 525c25dad8750083829d9a8935ce40d0734e5488f8eRafael Espindola if (!getNumFrameInfos()) 526c25dad8750083829d9a8935ce40d0734e5488f8eRafael Espindola return; 527c25dad8750083829d9a8935ce40d0734e5488f8eRafael Espindola 528c25dad8750083829d9a8935ce40d0734e5488f8eRafael Espindola if (EmitEHFrame) 52940a7dbbeff44c4cbd8c7e4f07f28dd614f8a5d08Rafael Espindola MCDwarfFrameEmitter::Emit(*this, usingCFI, true); 53040a7dbbeff44c4cbd8c7e4f07f28dd614f8a5d08Rafael Espindola 53140a7dbbeff44c4cbd8c7e4f07f28dd614f8a5d08Rafael Espindola if (EmitDebugFrame) 53240a7dbbeff44c4cbd8c7e4f07f28dd614f8a5d08Rafael Espindola MCDwarfFrameEmitter::Emit(*this, usingCFI, false); 533c25dad8750083829d9a8935ce40d0734e5488f8eRafael Espindola} 53438ea9eecd7c810e11f96c8306b241f9db88fc62fCharles Davis 53538ea9eecd7c810e11f96c8306b241f9db88fc62fCharles Davisvoid MCStreamer::EmitW64Tables() { 53638ea9eecd7c810e11f96c8306b241f9db88fc62fCharles Davis if (!getNumW64UnwindInfos()) 53738ea9eecd7c810e11f96c8306b241f9db88fc62fCharles Davis return; 53838ea9eecd7c810e11f96c8306b241f9db88fc62fCharles Davis 53938ea9eecd7c810e11f96c8306b241f9db88fc62fCharles Davis MCWin64EHUnwindEmitter::Emit(*this); 54038ea9eecd7c810e11f96c8306b241f9db88fc62fCharles Davis} 541