MCStreamer.cpp revision ca93138e11f404a19553049a569f1fa6ad491b67
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() { 31a11af531ec48ad84f790b9511f003ac5c934a999Daniel Dunbar} 32ddf6bdde44287b5b559bc403a02ff971e15e8303Chris Lattner 33a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindolaconst MCExpr *MCStreamer::BuildSymbolDiff(MCContext &Context, 34a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola const MCSymbol *A, 35a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola const MCSymbol *B) { 36a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola MCSymbolRefExpr::VariantKind Variant = MCSymbolRefExpr::VK_None; 37a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola const MCExpr *ARef = 38a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola MCSymbolRefExpr::Create(A, Variant, Context); 39a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola const MCExpr *BRef = 40a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola MCSymbolRefExpr::Create(B, Variant, Context); 41a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola const MCExpr *AddrDelta = 42a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola MCBinaryExpr::Create(MCBinaryExpr::Sub, ARef, BRef, Context); 43a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola return AddrDelta; 44a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola} 45a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola 46a6f2678f08299f053feb58337fc4322131d99bf4Rafael Espindolaconst MCExpr *MCStreamer::ForceExpAbs(const MCExpr* Expr) { 4778ff647e4471c88c3a3826e7ac24adcd8a9a2073Rafael Espindola if (Context.getAsmInfo().hasAggressiveSymbolFolding() || 4878ff647e4471c88c3a3826e7ac24adcd8a9a2073Rafael Espindola isa<MCSymbolRefExpr>(Expr)) 49a6f2678f08299f053feb58337fc4322131d99bf4Rafael Espindola return Expr; 50a6f2678f08299f053feb58337fc4322131d99bf4Rafael Espindola 51a6f2678f08299f053feb58337fc4322131d99bf4Rafael Espindola MCSymbol *ABS = Context.CreateTempSymbol(); 52a6f2678f08299f053feb58337fc4322131d99bf4Rafael Espindola EmitAssignment(ABS, Expr); 53a6f2678f08299f053feb58337fc4322131d99bf4Rafael Espindola return MCSymbolRefExpr::Create(ABS, Context); 54a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola} 55a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola 56d79d9dce47d505369662ae5111dba24f9ccdef68Chris Lattnerraw_ostream &MCStreamer::GetCommentOS() { 57d79d9dce47d505369662ae5111dba24f9ccdef68Chris Lattner // By default, discard comments. 58d79d9dce47d505369662ae5111dba24f9ccdef68Chris Lattner return nulls(); 59d79d9dce47d505369662ae5111dba24f9ccdef68Chris Lattner} 60d79d9dce47d505369662ae5111dba24f9ccdef68Chris Lattner 6132a006e606742b1c5401e49607e33717bb5441f0Rafael Espindolavoid MCStreamer::EmitDwarfSetLineAddr(int64_t LineDelta, 6232a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola const MCSymbol *Label, int PointerSize) { 6332a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola // emit the sequence to set the address 6432a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola EmitIntValue(dwarf::DW_LNS_extended_op, 1); 6532a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola EmitULEB128IntValue(PointerSize + 1); 6632a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola EmitIntValue(dwarf::DW_LNE_set_address, 1); 6732a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola EmitSymbolValue(Label, PointerSize); 6832a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola 6932a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola // emit the sequence for the LineDelta (from 1) and a zero address delta. 7032a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola MCDwarfLineAddr::Emit(this, LineDelta, 0); 7132a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola} 72d79d9dce47d505369662ae5111dba24f9ccdef68Chris Lattner 7332ae3fe0ba469240753e2342e36485f7c9acfb5cChris Lattner/// EmitIntValue - Special case of EmitValue that avoids the client having to 7432ae3fe0ba469240753e2342e36485f7c9acfb5cChris Lattner/// pass in a MCExpr for constant integers. 7532ae3fe0ba469240753e2342e36485f7c9acfb5cChris Lattnervoid MCStreamer::EmitIntValue(uint64_t Value, unsigned Size, 7632ae3fe0ba469240753e2342e36485f7c9acfb5cChris Lattner unsigned AddrSpace) { 77dea914bed9fb1d5c08e944557989ccddb6849000Devang Patel assert(Size <= 8 && "Invalid size"); 78818b5f5dd7979b097564f829896353df286127ffMatt Beaumont-Gay assert((isUIntN(8 * Size, Value) || isIntN(8 * Size, Value)) && 79818b5f5dd7979b097564f829896353df286127ffMatt Beaumont-Gay "Invalid size"); 802df042cb32ecb8d2e1d499dfa27d5074c8b40e13Rafael Espindola char buf[8]; 812df042cb32ecb8d2e1d499dfa27d5074c8b40e13Rafael Espindola // FIXME: Endianness assumption. 822df042cb32ecb8d2e1d499dfa27d5074c8b40e13Rafael Espindola for (unsigned i = 0; i != Size; ++i) 832df042cb32ecb8d2e1d499dfa27d5074c8b40e13Rafael Espindola buf[i] = uint8_t(Value >> (i * 8)); 842df042cb32ecb8d2e1d499dfa27d5074c8b40e13Rafael Espindola EmitBytes(StringRef(buf, Size), AddrSpace); 8532ae3fe0ba469240753e2342e36485f7c9acfb5cChris Lattner} 8632ae3fe0ba469240753e2342e36485f7c9acfb5cChris Lattner 873ff57094a7d176a759ddb1e1668489d89064f56cRafael Espindola/// EmitULEB128Value - Special case of EmitULEB128Value that avoids the 883ff57094a7d176a759ddb1e1668489d89064f56cRafael Espindola/// client having to pass in a MCExpr for constant integers. 893ff57094a7d176a759ddb1e1668489d89064f56cRafael Espindolavoid MCStreamer::EmitULEB128IntValue(uint64_t Value, unsigned AddrSpace) { 90660b5fc4d019bf22fbe14dfb81c5b59444fa3506Rafael Espindola SmallString<32> Tmp; 91660b5fc4d019bf22fbe14dfb81c5b59444fa3506Rafael Espindola raw_svector_ostream OSE(Tmp); 92660b5fc4d019bf22fbe14dfb81c5b59444fa3506Rafael Espindola MCObjectWriter::EncodeULEB128(Value, OSE); 93660b5fc4d019bf22fbe14dfb81c5b59444fa3506Rafael Espindola EmitBytes(OSE.str(), AddrSpace); 94c095793b4ab027181605c79c9808df12afe45d63Kevin Enderby} 95c095793b4ab027181605c79c9808df12afe45d63Kevin Enderby 963ff57094a7d176a759ddb1e1668489d89064f56cRafael Espindola/// EmitSLEB128Value - Special case of EmitSLEB128Value that avoids the 973ff57094a7d176a759ddb1e1668489d89064f56cRafael Espindola/// client having to pass in a MCExpr for constant integers. 983ff57094a7d176a759ddb1e1668489d89064f56cRafael Espindolavoid MCStreamer::EmitSLEB128IntValue(int64_t Value, unsigned AddrSpace) { 99660b5fc4d019bf22fbe14dfb81c5b59444fa3506Rafael Espindola SmallString<32> Tmp; 100660b5fc4d019bf22fbe14dfb81c5b59444fa3506Rafael Espindola raw_svector_ostream OSE(Tmp); 101660b5fc4d019bf22fbe14dfb81c5b59444fa3506Rafael Espindola MCObjectWriter::EncodeSLEB128(Value, OSE); 102660b5fc4d019bf22fbe14dfb81c5b59444fa3506Rafael Espindola EmitBytes(OSE.str(), AddrSpace); 103c095793b4ab027181605c79c9808df12afe45d63Kevin Enderby} 104c095793b4ab027181605c79c9808df12afe45d63Kevin Enderby 1050bbe0b440ee2cef47dcb7b281825eb70341c16ddRafael Espindolavoid MCStreamer::EmitAbsValue(const MCExpr *Value, unsigned Size, 1060bbe0b440ee2cef47dcb7b281825eb70341c16ddRafael Espindola unsigned AddrSpace) { 107a6f2678f08299f053feb58337fc4322131d99bf4Rafael Espindola const MCExpr *ABS = ForceExpAbs(Value); 108a6f2678f08299f053feb58337fc4322131d99bf4Rafael Espindola EmitValue(ABS, Size, AddrSpace); 1090bbe0b440ee2cef47dcb7b281825eb70341c16ddRafael Espindola} 1100bbe0b440ee2cef47dcb7b281825eb70341c16ddRafael Espindola 11189b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola 11289b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindolavoid MCStreamer::EmitValue(const MCExpr *Value, unsigned Size, 11389b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola unsigned AddrSpace) { 114debd7e4e8bc5cfe61bfb71835ce2b1a3fbccc2beRafael Espindola EmitValueImpl(Value, Size, AddrSpace); 11589b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola} 11689b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola 11789b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindolavoid MCStreamer::EmitSymbolValue(const MCSymbol *Sym, unsigned Size, 118debd7e4e8bc5cfe61bfb71835ce2b1a3fbccc2beRafael Espindola unsigned AddrSpace) { 119debd7e4e8bc5cfe61bfb71835ce2b1a3fbccc2beRafael Espindola EmitValueImpl(MCSymbolRefExpr::Create(Sym, getContext()), Size, 12089b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola AddrSpace); 12189b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola} 12289b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola 1233e03211625bba5bbb70a193c140ebf4dd8388bb7Rafael Espindolavoid MCStreamer::EmitGPRel32Value(const MCExpr *Value) { 1243e03211625bba5bbb70a193c140ebf4dd8388bb7Rafael Espindola report_fatal_error("unsupported directive in streamer"); 1253e03211625bba5bbb70a193c140ebf4dd8388bb7Rafael Espindola} 1263e03211625bba5bbb70a193c140ebf4dd8388bb7Rafael Espindola 127ddf6bdde44287b5b559bc403a02ff971e15e8303Chris Lattner/// EmitFill - Emit NumBytes bytes worth of the value specified by 128ddf6bdde44287b5b559bc403a02ff971e15e8303Chris Lattner/// FillValue. This implements directives such as '.space'. 129aaec205b87637cd0d59d4f11630db603686eb73dChris Lattnervoid MCStreamer::EmitFill(uint64_t NumBytes, uint8_t FillValue, 130aaec205b87637cd0d59d4f11630db603686eb73dChris Lattner unsigned AddrSpace) { 131ddf6bdde44287b5b559bc403a02ff971e15e8303Chris Lattner const MCExpr *E = MCConstantExpr::Create(FillValue, getContext()); 132ddf6bdde44287b5b559bc403a02ff971e15e8303Chris Lattner for (uint64_t i = 0, e = NumBytes; i != e; ++i) 133aaec205b87637cd0d59d4f11630db603686eb73dChris Lattner EmitValue(E, 1, AddrSpace); 134ddf6bdde44287b5b559bc403a02ff971e15e8303Chris Lattner} 13591bead790518fcf5cb26019fb1ebf2372e8a5b3fChris Lattner 136af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindolabool MCStreamer::EmitDwarfFileDirective(unsigned FileNo, 137af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindola StringRef Filename) { 138af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindola return getContext().GetDwarfFile(Filename, FileNo) == 0; 139af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindola} 140af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindola 141af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindolavoid MCStreamer::EmitDwarfLocDirective(unsigned FileNo, unsigned Line, 142af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindola unsigned Column, unsigned Flags, 143af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindola unsigned Isa, 1443f3bf9387b75f4c932e4c59bd7af719d26ae4b99Devang Patel unsigned Discriminator, 1453f3bf9387b75f4c932e4c59bd7af719d26ae4b99Devang Patel StringRef FileName) { 146af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindola getContext().setCurrentDwarfLoc(FileNo, Line, Column, Flags, Isa, 147af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindola Discriminator); 148af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindola} 149af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindola 15089b9372605db2ce3b0085c84089e389f7bc1fbddRafael EspindolaMCDwarfFrameInfo *MCStreamer::getCurrentFrameInfo() { 15189b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola if (FrameInfos.empty()) 15289b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola return NULL; 15389b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola return &FrameInfos.back(); 15489b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola} 15589b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola 15689b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindolavoid MCStreamer::EnsureValidFrame() { 15789b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 15889b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola if (!CurFrame || CurFrame->End) 15989b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola report_fatal_error("No open frame"); 16089b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola} 16189b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola 1628bca4106dfc2945723251db10e340183f3e372ddRafael Espindolavoid MCStreamer::EmitEHSymAttributes(const MCSymbol *Symbol, 1638bca4106dfc2945723251db10e340183f3e372ddRafael Espindola MCSymbol *EHSymbol) { 1648bca4106dfc2945723251db10e340183f3e372ddRafael Espindola} 1658bca4106dfc2945723251db10e340183f3e372ddRafael Espindola 166ed708f9c1facb9928ef2f79503e7030c8f25b00dRafael Espindolavoid MCStreamer::EmitLabel(MCSymbol *Symbol) { 167ed708f9c1facb9928ef2f79503e7030c8f25b00dRafael Espindola assert(!Symbol->isVariable() && "Cannot emit a variable symbol!"); 168ed708f9c1facb9928ef2f79503e7030c8f25b00dRafael Espindola assert(getCurrentSection() && "Cannot emit before setting section!"); 169ed708f9c1facb9928ef2f79503e7030c8f25b00dRafael Espindola Symbol->setSection(*getCurrentSection()); 170ed708f9c1facb9928ef2f79503e7030c8f25b00dRafael Espindola 171ed708f9c1facb9928ef2f79503e7030c8f25b00dRafael Espindola StringRef Prefix = getContext().getAsmInfo().getPrivateGlobalPrefix(); 172ed708f9c1facb9928ef2f79503e7030c8f25b00dRafael Espindola if (!Symbol->getName().startswith(Prefix)) 173ed708f9c1facb9928ef2f79503e7030c8f25b00dRafael Espindola LastNonPrivate = Symbol; 174ed708f9c1facb9928ef2f79503e7030c8f25b00dRafael Espindola} 175ed708f9c1facb9928ef2f79503e7030c8f25b00dRafael Espindola 176f9efd83166401bca542c6702ea329f9901c4e04bRafael Espindolavoid MCStreamer::EmitCFISections(bool EH, bool Debug) { 177713c4bfc36260bfc9273d414b14757bd7819f9b1Rafael Espindola assert(EH || Debug); 178f9efd83166401bca542c6702ea329f9901c4e04bRafael Espindola EmitEHFrame = EH; 179f9efd83166401bca542c6702ea329f9901c4e04bRafael Espindola EmitDebugFrame = Debug; 180f9efd83166401bca542c6702ea329f9901c4e04bRafael Espindola} 181f9efd83166401bca542c6702ea329f9901c4e04bRafael Espindola 182066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindolavoid MCStreamer::EmitCFIStartProc() { 18389b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 184066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindola if (CurFrame && !CurFrame->End) 18589b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola report_fatal_error("Starting a frame before finishing the previous one!"); 1865bba08425374ca36fe5fbc7423ce1a09858e4097Rafael Espindola MCDwarfFrameInfo Frame; 18789b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola Frame.Begin = getContext().CreateTempSymbol(); 188ed708f9c1facb9928ef2f79503e7030c8f25b00dRafael Espindola Frame.Function = LastNonPrivate; 18989b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola EmitLabel(Frame.Begin); 19089b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola FrameInfos.push_back(Frame); 191cdfecc8759941c2996214070478d30084b79d463Rafael Espindola} 192cdfecc8759941c2996214070478d30084b79d463Rafael Espindola 193066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindolavoid MCStreamer::EmitCFIEndProc() { 19489b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola EnsureValidFrame(); 19589b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 19689b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola CurFrame->End = getContext().CreateTempSymbol(); 19789b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola EmitLabel(CurFrame->End); 198cdfecc8759941c2996214070478d30084b79d463Rafael Espindola} 199cdfecc8759941c2996214070478d30084b79d463Rafael Espindola 200066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindolavoid MCStreamer::EmitCFIDefCfa(int64_t Register, int64_t Offset) { 201b40a71fda188f8ca564e606ac2cb051a44ada311Rafael Espindola EnsureValidFrame(); 202b40a71fda188f8ca564e606ac2cb051a44ada311Rafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 203b40a71fda188f8ca564e606ac2cb051a44ada311Rafael Espindola MCSymbol *Label = getContext().CreateTempSymbol(); 204b40a71fda188f8ca564e606ac2cb051a44ada311Rafael Espindola EmitLabel(Label); 205b40a71fda188f8ca564e606ac2cb051a44ada311Rafael Espindola MachineLocation Dest(MachineLocation::VirtualFP); 206b40a71fda188f8ca564e606ac2cb051a44ada311Rafael Espindola MachineLocation Source(Register, -Offset); 207b40a71fda188f8ca564e606ac2cb051a44ada311Rafael Espindola MCCFIInstruction Instruction(Label, Dest, Source); 208b40a71fda188f8ca564e606ac2cb051a44ada311Rafael Espindola CurFrame->Instructions.push_back(Instruction); 209b40a71fda188f8ca564e606ac2cb051a44ada311Rafael Espindola} 210b40a71fda188f8ca564e606ac2cb051a44ada311Rafael Espindola 211066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindolavoid MCStreamer::EmitCFIDefCfaOffset(int64_t Offset) { 21289b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola EnsureValidFrame(); 2135bba08425374ca36fe5fbc7423ce1a09858e4097Rafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 2145bba08425374ca36fe5fbc7423ce1a09858e4097Rafael Espindola MCSymbol *Label = getContext().CreateTempSymbol(); 2155bba08425374ca36fe5fbc7423ce1a09858e4097Rafael Espindola EmitLabel(Label); 2165bba08425374ca36fe5fbc7423ce1a09858e4097Rafael Espindola MachineLocation Dest(MachineLocation::VirtualFP); 2175bba08425374ca36fe5fbc7423ce1a09858e4097Rafael Espindola MachineLocation Source(MachineLocation::VirtualFP, -Offset); 218fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola MCCFIInstruction Instruction(Label, Dest, Source); 219fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola CurFrame->Instructions.push_back(Instruction); 220cdfecc8759941c2996214070478d30084b79d463Rafael Espindola} 221cdfecc8759941c2996214070478d30084b79d463Rafael Espindola 2225d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962Rafael Espindolavoid MCStreamer::EmitCFIAdjustCfaOffset(int64_t Adjustment) { 2235d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962Rafael Espindola EnsureValidFrame(); 2245d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962Rafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 2255d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962Rafael Espindola MCSymbol *Label = getContext().CreateTempSymbol(); 2265d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962Rafael Espindola EmitLabel(Label); 2275d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962Rafael Espindola MachineLocation Dest(MachineLocation::VirtualFP); 2285d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962Rafael Espindola MachineLocation Source(MachineLocation::VirtualFP, Adjustment); 2295d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962Rafael Espindola MCCFIInstruction Instruction(MCCFIInstruction::RelMove, Label, Dest, Source); 2305d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962Rafael Espindola CurFrame->Instructions.push_back(Instruction); 2315d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962Rafael Espindola} 2325d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962Rafael Espindola 233066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindolavoid MCStreamer::EmitCFIDefCfaRegister(int64_t Register) { 23489b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola EnsureValidFrame(); 235b4601bd2ffdde372f1323f6b6ec98acd433501ceRafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 236b4601bd2ffdde372f1323f6b6ec98acd433501ceRafael Espindola MCSymbol *Label = getContext().CreateTempSymbol(); 237b4601bd2ffdde372f1323f6b6ec98acd433501ceRafael Espindola EmitLabel(Label); 238b4601bd2ffdde372f1323f6b6ec98acd433501ceRafael Espindola MachineLocation Dest(Register); 239b4601bd2ffdde372f1323f6b6ec98acd433501ceRafael Espindola MachineLocation Source(MachineLocation::VirtualFP); 240b4601bd2ffdde372f1323f6b6ec98acd433501ceRafael Espindola MCCFIInstruction Instruction(Label, Dest, Source); 241b4601bd2ffdde372f1323f6b6ec98acd433501ceRafael Espindola CurFrame->Instructions.push_back(Instruction); 242cdfecc8759941c2996214070478d30084b79d463Rafael Espindola} 243cdfecc8759941c2996214070478d30084b79d463Rafael Espindola 244066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindolavoid MCStreamer::EmitCFIOffset(int64_t Register, int64_t Offset) { 24589b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola EnsureValidFrame(); 246b790a17efba26f4365b5ffb847dd53fde063c48dRafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 247b790a17efba26f4365b5ffb847dd53fde063c48dRafael Espindola MCSymbol *Label = getContext().CreateTempSymbol(); 248b790a17efba26f4365b5ffb847dd53fde063c48dRafael Espindola EmitLabel(Label); 249b790a17efba26f4365b5ffb847dd53fde063c48dRafael Espindola MachineLocation Dest(Register, Offset); 250b790a17efba26f4365b5ffb847dd53fde063c48dRafael Espindola MachineLocation Source(Register, Offset); 251b790a17efba26f4365b5ffb847dd53fde063c48dRafael Espindola MCCFIInstruction Instruction(Label, Dest, Source); 252b790a17efba26f4365b5ffb847dd53fde063c48dRafael Espindola CurFrame->Instructions.push_back(Instruction); 253cdfecc8759941c2996214070478d30084b79d463Rafael Espindola} 254cdfecc8759941c2996214070478d30084b79d463Rafael Espindola 25525f492e77858dc5a95fcd7180e73aff47925b668Rafael Espindolavoid MCStreamer::EmitCFIRelOffset(int64_t Register, int64_t Offset) { 25625f492e77858dc5a95fcd7180e73aff47925b668Rafael Espindola EnsureValidFrame(); 25725f492e77858dc5a95fcd7180e73aff47925b668Rafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 25825f492e77858dc5a95fcd7180e73aff47925b668Rafael Espindola MCSymbol *Label = getContext().CreateTempSymbol(); 25925f492e77858dc5a95fcd7180e73aff47925b668Rafael Espindola EmitLabel(Label); 26025f492e77858dc5a95fcd7180e73aff47925b668Rafael Espindola MachineLocation Dest(Register, Offset); 26125f492e77858dc5a95fcd7180e73aff47925b668Rafael Espindola MachineLocation Source(Register, Offset); 26225f492e77858dc5a95fcd7180e73aff47925b668Rafael Espindola MCCFIInstruction Instruction(MCCFIInstruction::RelMove, Label, Dest, Source); 26325f492e77858dc5a95fcd7180e73aff47925b668Rafael Espindola CurFrame->Instructions.push_back(Instruction); 26425f492e77858dc5a95fcd7180e73aff47925b668Rafael Espindola} 26525f492e77858dc5a95fcd7180e73aff47925b668Rafael Espindola 266066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindolavoid MCStreamer::EmitCFIPersonality(const MCSymbol *Sym, 2673a83c40ab61d5ca624f2bbadd70237c6adbdb304Rafael Espindola unsigned Encoding) { 26889b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola EnsureValidFrame(); 26989b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 27089b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola CurFrame->Personality = Sym; 2713a83c40ab61d5ca624f2bbadd70237c6adbdb304Rafael Espindola CurFrame->PersonalityEncoding = Encoding; 272cdfecc8759941c2996214070478d30084b79d463Rafael Espindola} 273cdfecc8759941c2996214070478d30084b79d463Rafael Espindola 274066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindolavoid MCStreamer::EmitCFILsda(const MCSymbol *Sym, unsigned Encoding) { 27589b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola EnsureValidFrame(); 27689b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 27789b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola CurFrame->Lsda = Sym; 278bdc3167c086dd4358e24692075db5e7784140843Rafael Espindola CurFrame->LsdaEncoding = Encoding; 279cdfecc8759941c2996214070478d30084b79d463Rafael Espindola} 280cdfecc8759941c2996214070478d30084b79d463Rafael Espindola 281066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindolavoid MCStreamer::EmitCFIRememberState() { 282fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola EnsureValidFrame(); 283fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 284fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola MCSymbol *Label = getContext().CreateTempSymbol(); 285fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola EmitLabel(Label); 286fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola MCCFIInstruction Instruction(MCCFIInstruction::Remember, Label); 287fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola CurFrame->Instructions.push_back(Instruction); 288fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola} 289fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola 290066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindolavoid MCStreamer::EmitCFIRestoreState() { 291fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola // FIXME: Error if there is no matching cfi_remember_state. 292fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola EnsureValidFrame(); 293fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 294fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola MCSymbol *Label = getContext().CreateTempSymbol(); 295fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola EmitLabel(Label); 296fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola MCCFIInstruction Instruction(MCCFIInstruction::Restore, Label); 297fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola CurFrame->Instructions.push_back(Instruction); 298fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola} 299fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola 300c57543964d1382d3d3a5005f415b6c0f49671b3aRafael Espindolavoid MCStreamer::EmitCFISameValue(int64_t Register) { 301c57543964d1382d3d3a5005f415b6c0f49671b3aRafael Espindola EnsureValidFrame(); 302c57543964d1382d3d3a5005f415b6c0f49671b3aRafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 303c57543964d1382d3d3a5005f415b6c0f49671b3aRafael Espindola MCSymbol *Label = getContext().CreateTempSymbol(); 304c57543964d1382d3d3a5005f415b6c0f49671b3aRafael Espindola EmitLabel(Label); 305c57543964d1382d3d3a5005f415b6c0f49671b3aRafael Espindola MCCFIInstruction Instruction(MCCFIInstruction::SameValue, Label, Register); 306c57543964d1382d3d3a5005f415b6c0f49671b3aRafael Espindola CurFrame->Instructions.push_back(Instruction); 307c57543964d1382d3d3a5005f415b6c0f49671b3aRafael Espindola} 308c57543964d1382d3d3a5005f415b6c0f49671b3aRafael Espindola 30991d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davisvoid MCStreamer::setCurrentW64UnwindInfo(MCWin64EHUnwindInfo *Frame) { 310ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis W64UnwindInfos.push_back(Frame); 311ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis CurrentW64UnwindInfo = W64UnwindInfos.back(); 3129c77398d1c89f615735d304cd7eda3c3e9b1504fCharles Davis} 3139c77398d1c89f615735d304cd7eda3c3e9b1504fCharles Davis 3140855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davisvoid MCStreamer::EnsureValidW64UnwindInfo() { 31591d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 3160855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis if (!CurFrame || CurFrame->End) 3170855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis report_fatal_error("No open Win64 EH frame function!"); 3180855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis} 3190855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis 320fbc539ff37ddd08c2480be9185e7a40919ce8940Charles Davisvoid MCStreamer::EmitWin64EHStartProc(const MCSymbol *Symbol) { 32191d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 3220855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis if (CurFrame && !CurFrame->End) 3230855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis report_fatal_error("Starting a function before ending the previous one!"); 324ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis MCWin64EHUnwindInfo *Frame = new (getContext()) MCWin64EHUnwindInfo; 325ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis Frame->Begin = getContext().CreateTempSymbol(); 326ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis Frame->Function = Symbol; 327ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis EmitLabel(Frame->Begin); 328ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis setCurrentW64UnwindInfo(Frame); 3290855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis} 3300855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis 3310855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davisvoid MCStreamer::EmitWin64EHEndProc() { 3320855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis EnsureValidW64UnwindInfo(); 33391d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 33491d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis if (CurFrame->ChainedParent) 3350855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis report_fatal_error("Not all chained regions terminated!"); 3360855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis CurFrame->End = getContext().CreateTempSymbol(); 3370855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis EmitLabel(CurFrame->End); 338ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis} 339ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis 340440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davisvoid MCStreamer::EmitWin64EHStartChained() { 34191d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis EnsureValidW64UnwindInfo(); 342ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis MCWin64EHUnwindInfo *Frame = new (getContext()) MCWin64EHUnwindInfo; 34391d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 344ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis Frame->Begin = getContext().CreateTempSymbol(); 345ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis Frame->Function = CurFrame->Function; 346ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis Frame->ChainedParent = CurFrame; 347ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis EmitLabel(Frame->Begin); 348ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis setCurrentW64UnwindInfo(Frame); 349f07090134d06e0cf3508e8b8e87d775f0a7982c1Charles Davis} 350f07090134d06e0cf3508e8b8e87d775f0a7982c1Charles Davis 351440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davisvoid MCStreamer::EmitWin64EHEndChained() { 35291d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis EnsureValidW64UnwindInfo(); 35391d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 35491d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis if (!CurFrame->ChainedParent) 35591d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis report_fatal_error("End of a chained region outside a chained region!"); 35691d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis CurFrame->End = getContext().CreateTempSymbol(); 35791d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis EmitLabel(CurFrame->End); 35891d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis CurrentW64UnwindInfo = CurFrame->ChainedParent; 359f07090134d06e0cf3508e8b8e87d775f0a7982c1Charles Davis} 360f07090134d06e0cf3508e8b8e87d775f0a7982c1Charles Davis 361440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davisvoid MCStreamer::EmitWin64EHHandler(const MCSymbol *Sym, bool Unwind, 362440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davis bool Except) { 363440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davis EnsureValidW64UnwindInfo(); 364440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 36581f3830f2ed0b26e8bd7ae62e127db427f9f350dCharles Davis if (CurFrame->ChainedParent) 36681f3830f2ed0b26e8bd7ae62e127db427f9f350dCharles Davis report_fatal_error("Chained unwind areas can't have handlers!"); 367440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davis CurFrame->ExceptionHandler = Sym; 368321fe74b2d40d7762175fbd3054fda00b5e70833Charles Davis if (!Except && !Unwind) 369440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davis report_fatal_error("Don't know what kind of handler this is!"); 370321fe74b2d40d7762175fbd3054fda00b5e70833Charles Davis if (Unwind) 371321fe74b2d40d7762175fbd3054fda00b5e70833Charles Davis CurFrame->HandlesUnwind = true; 372321fe74b2d40d7762175fbd3054fda00b5e70833Charles Davis if (Except) 373321fe74b2d40d7762175fbd3054fda00b5e70833Charles Davis CurFrame->HandlesExceptions = true; 374440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davis} 375440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davis 376440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davisvoid MCStreamer::EmitWin64EHHandlerData() { 377d0b76d00048352affac4fad0ef005e28f5340b76Charles Davis EnsureValidW64UnwindInfo(); 37881f3830f2ed0b26e8bd7ae62e127db427f9f350dCharles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 37981f3830f2ed0b26e8bd7ae62e127db427f9f350dCharles Davis if (CurFrame->ChainedParent) 38081f3830f2ed0b26e8bd7ae62e127db427f9f350dCharles Davis report_fatal_error("Chained unwind areas can't have handlers!"); 381f07090134d06e0cf3508e8b8e87d775f0a7982c1Charles Davis} 382f07090134d06e0cf3508e8b8e87d775f0a7982c1Charles Davis 383c3b162857a587c9877e903f038471b882b213232Charles Davisvoid MCStreamer::EmitWin64EHPushReg(unsigned Register) { 384c3b162857a587c9877e903f038471b882b213232Charles Davis EnsureValidW64UnwindInfo(); 385c3b162857a587c9877e903f038471b882b213232Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 386c3b162857a587c9877e903f038471b882b213232Charles Davis MCWin64EHInstruction Inst(Win64EH::UOP_PushNonVol, Register); 387c3b162857a587c9877e903f038471b882b213232Charles Davis CurFrame->Instructions.push_back(Inst); 388f07090134d06e0cf3508e8b8e87d775f0a7982c1Charles Davis} 389f07090134d06e0cf3508e8b8e87d775f0a7982c1Charles Davis 390c3b162857a587c9877e903f038471b882b213232Charles Davisvoid MCStreamer::EmitWin64EHSetFrame(unsigned Register, unsigned Offset) { 391c3b162857a587c9877e903f038471b882b213232Charles Davis EnsureValidW64UnwindInfo(); 392edeecbff0e231c04b7222a79a26017a48668f0e2Charles Davis if (Offset & 0x0F) 393edeecbff0e231c04b7222a79a26017a48668f0e2Charles Davis report_fatal_error("Misaligned frame pointer offset!"); 394c3b162857a587c9877e903f038471b882b213232Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 395c3b162857a587c9877e903f038471b882b213232Charles Davis MCWin64EHInstruction Inst(Win64EH::UOP_SetFPReg, Register, Offset); 3965c2256a5719172273eaef198f92d8af924ff8623Charles Davis CurFrame->LastFrameInst = CurFrame->Instructions.size(); 397c3b162857a587c9877e903f038471b882b213232Charles Davis CurFrame->Instructions.push_back(Inst); 398ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis} 399ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis 400c3b162857a587c9877e903f038471b882b213232Charles Davisvoid MCStreamer::EmitWin64EHAllocStack(unsigned Size) { 401c3b162857a587c9877e903f038471b882b213232Charles Davis EnsureValidW64UnwindInfo(); 402edeecbff0e231c04b7222a79a26017a48668f0e2Charles Davis if (Size & 7) 403edeecbff0e231c04b7222a79a26017a48668f0e2Charles Davis report_fatal_error("Misaligned stack allocation!"); 404c3b162857a587c9877e903f038471b882b213232Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 405c3b162857a587c9877e903f038471b882b213232Charles Davis MCWin64EHInstruction Inst(Size); 406c3b162857a587c9877e903f038471b882b213232Charles Davis CurFrame->Instructions.push_back(Inst); 407ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis} 408ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis 409c3b162857a587c9877e903f038471b882b213232Charles Davisvoid MCStreamer::EmitWin64EHSaveReg(unsigned Register, unsigned Offset) { 410c3b162857a587c9877e903f038471b882b213232Charles Davis EnsureValidW64UnwindInfo(); 411edeecbff0e231c04b7222a79a26017a48668f0e2Charles Davis if (Offset & 7) 412edeecbff0e231c04b7222a79a26017a48668f0e2Charles Davis report_fatal_error("Misaligned saved register offset!"); 413c3b162857a587c9877e903f038471b882b213232Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 414c3b162857a587c9877e903f038471b882b213232Charles Davis MCWin64EHInstruction Inst( 415edeecbff0e231c04b7222a79a26017a48668f0e2Charles Davis Offset > 512*1024-8 ? Win64EH::UOP_SaveNonVol : Win64EH::UOP_SaveNonVolBig, 416c3b162857a587c9877e903f038471b882b213232Charles Davis Register, Offset); 417c3b162857a587c9877e903f038471b882b213232Charles Davis CurFrame->Instructions.push_back(Inst); 418ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis} 419ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis 420c3b162857a587c9877e903f038471b882b213232Charles Davisvoid MCStreamer::EmitWin64EHSaveXMM(unsigned Register, unsigned Offset) { 421c3b162857a587c9877e903f038471b882b213232Charles Davis EnsureValidW64UnwindInfo(); 422edeecbff0e231c04b7222a79a26017a48668f0e2Charles Davis if (Offset & 0x0F) 423edeecbff0e231c04b7222a79a26017a48668f0e2Charles Davis report_fatal_error("Misaligned saved vector register offset!"); 424c3b162857a587c9877e903f038471b882b213232Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 425c3b162857a587c9877e903f038471b882b213232Charles Davis MCWin64EHInstruction Inst( 426edeecbff0e231c04b7222a79a26017a48668f0e2Charles Davis Offset > 512*1024-16 ? Win64EH::UOP_SaveXMM128 : Win64EH::UOP_SaveXMM128Big, 427c3b162857a587c9877e903f038471b882b213232Charles Davis Register, Offset); 428c3b162857a587c9877e903f038471b882b213232Charles Davis CurFrame->Instructions.push_back(Inst); 429ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis} 430ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis 431440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davisvoid MCStreamer::EmitWin64EHPushFrame(bool Code) { 432c3b162857a587c9877e903f038471b882b213232Charles Davis EnsureValidW64UnwindInfo(); 433c3b162857a587c9877e903f038471b882b213232Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 434c3b162857a587c9877e903f038471b882b213232Charles Davis MCWin64EHInstruction Inst(Win64EH::UOP_PushMachFrame, Code); 435c3b162857a587c9877e903f038471b882b213232Charles Davis CurFrame->Instructions.push_back(Inst); 436ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis} 437ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis 438440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davisvoid MCStreamer::EmitWin64EHEndProlog() { 43961558aaf4f924fd44fd2f275fcb7ab7199ede304Charles Davis EnsureValidW64UnwindInfo(); 44061558aaf4f924fd44fd2f275fcb7ab7199ede304Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 44161558aaf4f924fd44fd2f275fcb7ab7199ede304Charles Davis CurFrame->PrologEnd = getContext().CreateTempSymbol(); 44261558aaf4f924fd44fd2f275fcb7ab7199ede304Charles Davis EmitLabel(CurFrame->PrologEnd); 443cacdc4fc41f035c149d5f1b92acd587d475ffd58Charles Davis} 444cacdc4fc41f035c149d5f1b92acd587d475ffd58Charles Davis 445b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikovvoid MCStreamer::EmitFnStart() { 446b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov errs() << "Not implemented yet\n"; 447b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov abort(); 448b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov} 449b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov 450b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikovvoid MCStreamer::EmitFnEnd() { 451b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov errs() << "Not implemented yet\n"; 452b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov abort(); 453b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov} 454b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov 455b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikovvoid MCStreamer::EmitCantUnwind() { 456b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov errs() << "Not implemented yet\n"; 457b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov abort(); 458b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov} 459b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov 460b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikovvoid MCStreamer::EmitHandlerData() { 461b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov errs() << "Not implemented yet\n"; 462b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov abort(); 463b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov} 464b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov 465b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikovvoid MCStreamer::EmitPersonality(const MCSymbol *Personality) { 466b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov errs() << "Not implemented yet\n"; 467b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov abort(); 468b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov} 469b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov 47057caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikovvoid MCStreamer::EmitSetFP(unsigned FpReg, unsigned SpReg, int64_t Offset) { 47157caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov errs() << "Not implemented yet\n"; 47257caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov abort(); 47357caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov} 47457caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov 47557caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikovvoid MCStreamer::EmitPad(int64_t Offset) { 47657caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov errs() << "Not implemented yet\n"; 47757caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov abort(); 47857caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov} 47957caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov 48057caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikovvoid MCStreamer::EmitRegSave(const SmallVectorImpl<unsigned> &RegList, bool) { 48157caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov errs() << "Not implemented yet\n"; 48257caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov abort(); 48357caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov} 48457caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov 485ab3b3651add0915a5a051b177029ad117a877f52Matt Fleming/// EmitRawText - If this file is backed by an assembly streamer, this dumps 48691bead790518fcf5cb26019fb1ebf2372e8a5b3fChris Lattner/// the specified string in the output .s file. This capability is 48791bead790518fcf5cb26019fb1ebf2372e8a5b3fChris Lattner/// indicated by the hasRawTextSupport() predicate. 48891bead790518fcf5cb26019fb1ebf2372e8a5b3fChris Lattnervoid MCStreamer::EmitRawText(StringRef String) { 48991bead790518fcf5cb26019fb1ebf2372e8a5b3fChris Lattner errs() << "EmitRawText called on an MCStreamer that doesn't support it, " 49091bead790518fcf5cb26019fb1ebf2372e8a5b3fChris Lattner " something must not be fully mc'ized\n"; 49191bead790518fcf5cb26019fb1ebf2372e8a5b3fChris Lattner abort(); 49291bead790518fcf5cb26019fb1ebf2372e8a5b3fChris Lattner} 49358bc4dd4a91443ddd3120b0a2f1801ad4d6aae1cChris Lattner 49458bc4dd4a91443ddd3120b0a2f1801ad4d6aae1cChris Lattnervoid MCStreamer::EmitRawText(const Twine &T) { 49558bc4dd4a91443ddd3120b0a2f1801ad4d6aae1cChris Lattner SmallString<128> Str; 49658bc4dd4a91443ddd3120b0a2f1801ad4d6aae1cChris Lattner T.toVector(Str); 49758bc4dd4a91443ddd3120b0a2f1801ad4d6aae1cChris Lattner EmitRawText(Str.str()); 49858bc4dd4a91443ddd3120b0a2f1801ad4d6aae1cChris Lattner} 499c25dad8750083829d9a8935ce40d0734e5488f8eRafael Espindola 500c25dad8750083829d9a8935ce40d0734e5488f8eRafael Espindolavoid MCStreamer::EmitFrames(bool usingCFI) { 501c25dad8750083829d9a8935ce40d0734e5488f8eRafael Espindola if (!getNumFrameInfos()) 502c25dad8750083829d9a8935ce40d0734e5488f8eRafael Espindola return; 503c25dad8750083829d9a8935ce40d0734e5488f8eRafael Espindola 504c25dad8750083829d9a8935ce40d0734e5488f8eRafael Espindola if (EmitEHFrame) 50540a7dbbeff44c4cbd8c7e4f07f28dd614f8a5d08Rafael Espindola MCDwarfFrameEmitter::Emit(*this, usingCFI, true); 50640a7dbbeff44c4cbd8c7e4f07f28dd614f8a5d08Rafael Espindola 50740a7dbbeff44c4cbd8c7e4f07f28dd614f8a5d08Rafael Espindola if (EmitDebugFrame) 50840a7dbbeff44c4cbd8c7e4f07f28dd614f8a5d08Rafael Espindola MCDwarfFrameEmitter::Emit(*this, usingCFI, false); 509c25dad8750083829d9a8935ce40d0734e5488f8eRafael Espindola} 51038ea9eecd7c810e11f96c8306b241f9db88fc62fCharles Davis 51138ea9eecd7c810e11f96c8306b241f9db88fc62fCharles Davisvoid MCStreamer::EmitW64Tables() { 51238ea9eecd7c810e11f96c8306b241f9db88fc62fCharles Davis if (!getNumW64UnwindInfos()) 51338ea9eecd7c810e11f96c8306b241f9db88fc62fCharles Davis return; 51438ea9eecd7c810e11f96c8306b241f9db88fc62fCharles Davis 51538ea9eecd7c810e11f96c8306b241f9db88fc62fCharles Davis MCWin64EHUnwindEmitter::Emit(*this); 51638ea9eecd7c810e11f96c8306b241f9db88fc62fCharles Davis} 517