MCStreamer.cpp revision 7f74d2c2c197eec76ae2b41fed9c227c0dcc04cb
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" 182d39a0e52df9ce050bd4e2de3a2ecca8fd9a87c3Jim Grosbach#include "llvm/Support/LEB128.h" 1958bc4dd4a91443ddd3120b0a2f1801ad4d6aae1cChris Lattner#include "llvm/ADT/SmallString.h" 2058bc4dd4a91443ddd3120b0a2f1801ad4d6aae1cChris Lattner#include "llvm/ADT/Twine.h" 213580dea910d622f2a6dbb72e97f5f7d0ef979542Chris Lattner#include <cstdlib> 22a11af531ec48ad84f790b9511f003ac5c934a999Daniel Dunbarusing namespace llvm; 23a11af531ec48ad84f790b9511f003ac5c934a999Daniel Dunbar 243e96531186ba574b0c25a4be62d24b8b7d752c9fJim GrosbachMCStreamer::MCStreamer(MCContext &Ctx) 253e96531186ba574b0c25a4be62d24b8b7d752c9fJim Grosbach : Context(Ctx), EmitEHFrame(true), EmitDebugFrame(false), 263e96531186ba574b0c25a4be62d24b8b7d752c9fJim Grosbach CurrentW64UnwindInfo(0), LastSymbol(0) { 277d0805dcb82e9ba1d90ce8d702169683b9caded7Joerg Sonnenberger const MCSection *section = NULL; 287d0805dcb82e9ba1d90ce8d702169683b9caded7Joerg Sonnenberger SectionStack.push_back(std::make_pair(section, section)); 29a11af531ec48ad84f790b9511f003ac5c934a999Daniel Dunbar} 30a11af531ec48ad84f790b9511f003ac5c934a999Daniel Dunbar 31a11af531ec48ad84f790b9511f003ac5c934a999Daniel DunbarMCStreamer::~MCStreamer() { 324eeb7b662b78f5c520fb258b3f9df18b1227cde5Charles Davis for (unsigned i = 0; i < getNumW64UnwindInfos(); ++i) 334eeb7b662b78f5c520fb258b3f9df18b1227cde5Charles Davis delete W64UnwindInfos[i]; 34a11af531ec48ad84f790b9511f003ac5c934a999Daniel Dunbar} 35ddf6bdde44287b5b559bc403a02ff971e15e8303Chris Lattner 36a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindolaconst MCExpr *MCStreamer::BuildSymbolDiff(MCContext &Context, 37a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola const MCSymbol *A, 38a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola const MCSymbol *B) { 39a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola MCSymbolRefExpr::VariantKind Variant = MCSymbolRefExpr::VK_None; 40a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola const MCExpr *ARef = 41a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola MCSymbolRefExpr::Create(A, Variant, Context); 42a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola const MCExpr *BRef = 43a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola MCSymbolRefExpr::Create(B, Variant, Context); 44a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola const MCExpr *AddrDelta = 45a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola MCBinaryExpr::Create(MCBinaryExpr::Sub, ARef, BRef, Context); 46a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola return AddrDelta; 47a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola} 48a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola 49a6f2678f08299f053feb58337fc4322131d99bf4Rafael Espindolaconst MCExpr *MCStreamer::ForceExpAbs(const MCExpr* Expr) { 5078ff647e4471c88c3a3826e7ac24adcd8a9a2073Rafael Espindola if (Context.getAsmInfo().hasAggressiveSymbolFolding() || 5178ff647e4471c88c3a3826e7ac24adcd8a9a2073Rafael Espindola isa<MCSymbolRefExpr>(Expr)) 52a6f2678f08299f053feb58337fc4322131d99bf4Rafael Espindola return Expr; 53a6f2678f08299f053feb58337fc4322131d99bf4Rafael Espindola 54a6f2678f08299f053feb58337fc4322131d99bf4Rafael Espindola MCSymbol *ABS = Context.CreateTempSymbol(); 55a6f2678f08299f053feb58337fc4322131d99bf4Rafael Espindola EmitAssignment(ABS, Expr); 56a6f2678f08299f053feb58337fc4322131d99bf4Rafael Espindola return MCSymbolRefExpr::Create(ABS, Context); 57a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola} 58a37bd1d02c0e3d93474fdf30352bf4a425cbe25bRafael Espindola 59d79d9dce47d505369662ae5111dba24f9ccdef68Chris Lattnerraw_ostream &MCStreamer::GetCommentOS() { 60d79d9dce47d505369662ae5111dba24f9ccdef68Chris Lattner // By default, discard comments. 61d79d9dce47d505369662ae5111dba24f9ccdef68Chris Lattner return nulls(); 62d79d9dce47d505369662ae5111dba24f9ccdef68Chris Lattner} 63d79d9dce47d505369662ae5111dba24f9ccdef68Chris Lattner 6432a006e606742b1c5401e49607e33717bb5441f0Rafael Espindolavoid MCStreamer::EmitDwarfSetLineAddr(int64_t LineDelta, 6532a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola const MCSymbol *Label, int PointerSize) { 6632a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola // emit the sequence to set the address 6732a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola EmitIntValue(dwarf::DW_LNS_extended_op, 1); 6832a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola EmitULEB128IntValue(PointerSize + 1); 6932a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola EmitIntValue(dwarf::DW_LNE_set_address, 1); 7032a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola EmitSymbolValue(Label, PointerSize); 7132a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola 7232a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola // emit the sequence for the LineDelta (from 1) and a zero address delta. 7332a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola MCDwarfLineAddr::Emit(this, LineDelta, 0); 7432a006e606742b1c5401e49607e33717bb5441f0Rafael Espindola} 75d79d9dce47d505369662ae5111dba24f9ccdef68Chris Lattner 7632ae3fe0ba469240753e2342e36485f7c9acfb5cChris Lattner/// EmitIntValue - Special case of EmitValue that avoids the client having to 7732ae3fe0ba469240753e2342e36485f7c9acfb5cChris Lattner/// pass in a MCExpr for constant integers. 7832ae3fe0ba469240753e2342e36485f7c9acfb5cChris Lattnervoid MCStreamer::EmitIntValue(uint64_t Value, unsigned Size, 7932ae3fe0ba469240753e2342e36485f7c9acfb5cChris Lattner unsigned AddrSpace) { 80dea914bed9fb1d5c08e944557989ccddb6849000Devang Patel assert(Size <= 8 && "Invalid size"); 81818b5f5dd7979b097564f829896353df286127ffMatt Beaumont-Gay assert((isUIntN(8 * Size, Value) || isIntN(8 * Size, Value)) && 82818b5f5dd7979b097564f829896353df286127ffMatt Beaumont-Gay "Invalid size"); 832df042cb32ecb8d2e1d499dfa27d5074c8b40e13Rafael Espindola char buf[8]; 841be0e271a07925b928ba89848934f1ea6f1854e2Evan Cheng const bool isLittleEndian = Context.getAsmInfo().isLittleEndian(); 8565891533a3b35d7fc8fa807a96b7ee2f09ff22b5Roman Divacky for (unsigned i = 0; i != Size; ++i) { 8665891533a3b35d7fc8fa807a96b7ee2f09ff22b5Roman Divacky unsigned index = isLittleEndian ? i : (Size - i - 1); 8765891533a3b35d7fc8fa807a96b7ee2f09ff22b5Roman Divacky buf[i] = uint8_t(Value >> (index * 8)); 8865891533a3b35d7fc8fa807a96b7ee2f09ff22b5Roman Divacky } 892df042cb32ecb8d2e1d499dfa27d5074c8b40e13Rafael Espindola EmitBytes(StringRef(buf, Size), AddrSpace); 9032ae3fe0ba469240753e2342e36485f7c9acfb5cChris Lattner} 9132ae3fe0ba469240753e2342e36485f7c9acfb5cChris Lattner 923ff57094a7d176a759ddb1e1668489d89064f56cRafael Espindola/// EmitULEB128Value - Special case of EmitULEB128Value that avoids the 933ff57094a7d176a759ddb1e1668489d89064f56cRafael Espindola/// client having to pass in a MCExpr for constant integers. 94c25c90897781f116d5dbabab170bafcf65900fa7Benjamin Kramervoid MCStreamer::EmitULEB128IntValue(uint64_t Value, unsigned AddrSpace, 95c25c90897781f116d5dbabab170bafcf65900fa7Benjamin Kramer unsigned Padding) { 96b601ab5cce6c560dff365cd87f6854ea95f76f54Benjamin Kramer SmallString<128> Tmp; 97660b5fc4d019bf22fbe14dfb81c5b59444fa3506Rafael Espindola raw_svector_ostream OSE(Tmp); 982d39a0e52df9ce050bd4e2de3a2ecca8fd9a87c3Jim Grosbach encodeULEB128(Value, OSE, Padding); 99660b5fc4d019bf22fbe14dfb81c5b59444fa3506Rafael Espindola EmitBytes(OSE.str(), AddrSpace); 100c095793b4ab027181605c79c9808df12afe45d63Kevin Enderby} 101c095793b4ab027181605c79c9808df12afe45d63Kevin Enderby 1023ff57094a7d176a759ddb1e1668489d89064f56cRafael Espindola/// EmitSLEB128Value - Special case of EmitSLEB128Value that avoids the 1033ff57094a7d176a759ddb1e1668489d89064f56cRafael Espindola/// client having to pass in a MCExpr for constant integers. 1043ff57094a7d176a759ddb1e1668489d89064f56cRafael Espindolavoid MCStreamer::EmitSLEB128IntValue(int64_t Value, unsigned AddrSpace) { 105b601ab5cce6c560dff365cd87f6854ea95f76f54Benjamin Kramer SmallString<128> Tmp; 106660b5fc4d019bf22fbe14dfb81c5b59444fa3506Rafael Espindola raw_svector_ostream OSE(Tmp); 1072d39a0e52df9ce050bd4e2de3a2ecca8fd9a87c3Jim Grosbach encodeSLEB128(Value, OSE); 108660b5fc4d019bf22fbe14dfb81c5b59444fa3506Rafael Espindola EmitBytes(OSE.str(), AddrSpace); 109c095793b4ab027181605c79c9808df12afe45d63Kevin Enderby} 110c095793b4ab027181605c79c9808df12afe45d63Kevin Enderby 1110bbe0b440ee2cef47dcb7b281825eb70341c16ddRafael Espindolavoid MCStreamer::EmitAbsValue(const MCExpr *Value, unsigned Size, 1120bbe0b440ee2cef47dcb7b281825eb70341c16ddRafael Espindola unsigned AddrSpace) { 113a6f2678f08299f053feb58337fc4322131d99bf4Rafael Espindola const MCExpr *ABS = ForceExpAbs(Value); 114a6f2678f08299f053feb58337fc4322131d99bf4Rafael Espindola EmitValue(ABS, Size, AddrSpace); 1150bbe0b440ee2cef47dcb7b281825eb70341c16ddRafael Espindola} 1160bbe0b440ee2cef47dcb7b281825eb70341c16ddRafael Espindola 11789b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola 11889b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindolavoid MCStreamer::EmitValue(const MCExpr *Value, unsigned Size, 11989b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola unsigned AddrSpace) { 120debd7e4e8bc5cfe61bfb71835ce2b1a3fbccc2beRafael Espindola EmitValueImpl(Value, Size, AddrSpace); 12189b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola} 12289b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola 12389b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindolavoid MCStreamer::EmitSymbolValue(const MCSymbol *Sym, unsigned Size, 124debd7e4e8bc5cfe61bfb71835ce2b1a3fbccc2beRafael Espindola unsigned AddrSpace) { 125debd7e4e8bc5cfe61bfb71835ce2b1a3fbccc2beRafael Espindola EmitValueImpl(MCSymbolRefExpr::Create(Sym, getContext()), Size, 12689b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola AddrSpace); 12789b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola} 12889b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola 1296c2cf8b1fbcf70fd9db6fe44032c1ceaa2299760Akira Hatanakavoid MCStreamer::EmitGPRel64Value(const MCExpr *Value) { 1306c2cf8b1fbcf70fd9db6fe44032c1ceaa2299760Akira Hatanaka report_fatal_error("unsupported directive in streamer"); 1316c2cf8b1fbcf70fd9db6fe44032c1ceaa2299760Akira Hatanaka} 1326c2cf8b1fbcf70fd9db6fe44032c1ceaa2299760Akira Hatanaka 1333e03211625bba5bbb70a193c140ebf4dd8388bb7Rafael Espindolavoid MCStreamer::EmitGPRel32Value(const MCExpr *Value) { 1343e03211625bba5bbb70a193c140ebf4dd8388bb7Rafael Espindola report_fatal_error("unsupported directive in streamer"); 1353e03211625bba5bbb70a193c140ebf4dd8388bb7Rafael Espindola} 1363e03211625bba5bbb70a193c140ebf4dd8388bb7Rafael Espindola 137ddf6bdde44287b5b559bc403a02ff971e15e8303Chris Lattner/// EmitFill - Emit NumBytes bytes worth of the value specified by 138ddf6bdde44287b5b559bc403a02ff971e15e8303Chris Lattner/// FillValue. This implements directives such as '.space'. 139aaec205b87637cd0d59d4f11630db603686eb73dChris Lattnervoid MCStreamer::EmitFill(uint64_t NumBytes, uint8_t FillValue, 140aaec205b87637cd0d59d4f11630db603686eb73dChris Lattner unsigned AddrSpace) { 141ddf6bdde44287b5b559bc403a02ff971e15e8303Chris Lattner const MCExpr *E = MCConstantExpr::Create(FillValue, getContext()); 142ddf6bdde44287b5b559bc403a02ff971e15e8303Chris Lattner for (uint64_t i = 0, e = NumBytes; i != e; ++i) 143aaec205b87637cd0d59d4f11630db603686eb73dChris Lattner EmitValue(E, 1, AddrSpace); 144ddf6bdde44287b5b559bc403a02ff971e15e8303Chris Lattner} 14591bead790518fcf5cb26019fb1ebf2372e8a5b3fChris Lattner 146af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindolabool MCStreamer::EmitDwarfFileDirective(unsigned FileNo, 14744d798d9763bc32aaf49fe7c10d604845f4b6685Nick Lewycky StringRef Directory, 148af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindola StringRef Filename) { 14944d798d9763bc32aaf49fe7c10d604845f4b6685Nick Lewycky return getContext().GetDwarfFile(Directory, Filename, FileNo) == 0; 150af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindola} 151af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindola 152af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindolavoid MCStreamer::EmitDwarfLocDirective(unsigned FileNo, unsigned Line, 153af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindola unsigned Column, unsigned Flags, 154af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindola unsigned Isa, 1553f3bf9387b75f4c932e4c59bd7af719d26ae4b99Devang Patel unsigned Discriminator, 1563f3bf9387b75f4c932e4c59bd7af719d26ae4b99Devang Patel StringRef FileName) { 157af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindola getContext().setCurrentDwarfLoc(FileNo, Line, Column, Flags, Isa, 158af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindola Discriminator); 159af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindola} 160af6b5808756d6ce335df9eb158efa33894b401c4Rafael Espindola 16189b9372605db2ce3b0085c84089e389f7bc1fbddRafael EspindolaMCDwarfFrameInfo *MCStreamer::getCurrentFrameInfo() { 16289b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola if (FrameInfos.empty()) 16389b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola return NULL; 16489b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola return &FrameInfos.back(); 16589b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola} 16689b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola 16789b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindolavoid MCStreamer::EnsureValidFrame() { 16889b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 16989b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola if (!CurFrame || CurFrame->End) 17089b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola report_fatal_error("No open frame"); 17189b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola} 17289b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola 1738bca4106dfc2945723251db10e340183f3e372ddRafael Espindolavoid MCStreamer::EmitEHSymAttributes(const MCSymbol *Symbol, 1748bca4106dfc2945723251db10e340183f3e372ddRafael Espindola MCSymbol *EHSymbol) { 1758bca4106dfc2945723251db10e340183f3e372ddRafael Espindola} 1768bca4106dfc2945723251db10e340183f3e372ddRafael Espindola 177ed708f9c1facb9928ef2f79503e7030c8f25b00dRafael Espindolavoid MCStreamer::EmitLabel(MCSymbol *Symbol) { 178ed708f9c1facb9928ef2f79503e7030c8f25b00dRafael Espindola assert(!Symbol->isVariable() && "Cannot emit a variable symbol!"); 179ed708f9c1facb9928ef2f79503e7030c8f25b00dRafael Espindola assert(getCurrentSection() && "Cannot emit before setting section!"); 180ed708f9c1facb9928ef2f79503e7030c8f25b00dRafael Espindola Symbol->setSection(*getCurrentSection()); 18149cb9b88867426d1a430f248550d3cc785a68fe4Rafael Espindola LastSymbol = Symbol; 182ed708f9c1facb9928ef2f79503e7030c8f25b00dRafael Espindola} 183ed708f9c1facb9928ef2f79503e7030c8f25b00dRafael Espindola 184d967578a8c506be341d20a1558eebb31484b8b6dBill Wendlingvoid MCStreamer::EmitCompactUnwindEncoding(uint32_t CompactUnwindEncoding) { 185d967578a8c506be341d20a1558eebb31484b8b6dBill Wendling EnsureValidFrame(); 186d967578a8c506be341d20a1558eebb31484b8b6dBill Wendling MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 187d967578a8c506be341d20a1558eebb31484b8b6dBill Wendling CurFrame->CompactUnwindEncoding = CompactUnwindEncoding; 188d967578a8c506be341d20a1558eebb31484b8b6dBill Wendling} 189d967578a8c506be341d20a1558eebb31484b8b6dBill Wendling 190f9efd83166401bca542c6702ea329f9901c4e04bRafael Espindolavoid MCStreamer::EmitCFISections(bool EH, bool Debug) { 191713c4bfc36260bfc9273d414b14757bd7819f9b1Rafael Espindola assert(EH || Debug); 192f9efd83166401bca542c6702ea329f9901c4e04bRafael Espindola EmitEHFrame = EH; 193f9efd83166401bca542c6702ea329f9901c4e04bRafael Espindola EmitDebugFrame = Debug; 194f9efd83166401bca542c6702ea329f9901c4e04bRafael Espindola} 195f9efd83166401bca542c6702ea329f9901c4e04bRafael Espindola 196066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindolavoid MCStreamer::EmitCFIStartProc() { 19789b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 198066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindola if (CurFrame && !CurFrame->End) 19989b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola report_fatal_error("Starting a frame before finishing the previous one!"); 20049cb9b88867426d1a430f248550d3cc785a68fe4Rafael Espindola 2015fbe5e783ee0c5ae27c17490a752d7e603e84ed2Evan Cheng MCDwarfFrameInfo Frame; 202547be2699c547b79a7735858a64921d8ccf180f7Rafael Espindola EmitCFIStartProcImpl(Frame); 203547be2699c547b79a7735858a64921d8ccf180f7Rafael Espindola 204547be2699c547b79a7735858a64921d8ccf180f7Rafael Espindola FrameInfos.push_back(Frame); 205547be2699c547b79a7735858a64921d8ccf180f7Rafael Espindola} 20649cb9b88867426d1a430f248550d3cc785a68fe4Rafael Espindola 207547be2699c547b79a7735858a64921d8ccf180f7Rafael Espindolavoid MCStreamer::EmitCFIStartProcImpl(MCDwarfFrameInfo &Frame) { 208547be2699c547b79a7735858a64921d8ccf180f7Rafael Espindola} 209547be2699c547b79a7735858a64921d8ccf180f7Rafael Espindola 210547be2699c547b79a7735858a64921d8ccf180f7Rafael Espindolavoid MCStreamer::RecordProcStart(MCDwarfFrameInfo &Frame) { 211547be2699c547b79a7735858a64921d8ccf180f7Rafael Espindola Frame.Function = LastSymbol; 21249cb9b88867426d1a430f248550d3cc785a68fe4Rafael Espindola // If the function is externally visible, we need to create a local 21349cb9b88867426d1a430f248550d3cc785a68fe4Rafael Espindola // symbol to avoid relocations. 21449cb9b88867426d1a430f248550d3cc785a68fe4Rafael Espindola StringRef Prefix = getContext().getAsmInfo().getPrivateGlobalPrefix(); 2155fbe5e783ee0c5ae27c17490a752d7e603e84ed2Evan Cheng if (LastSymbol && LastSymbol->getName().startswith(Prefix)) { 21649cb9b88867426d1a430f248550d3cc785a68fe4Rafael Espindola Frame.Begin = LastSymbol; 21749cb9b88867426d1a430f248550d3cc785a68fe4Rafael Espindola } else { 21849cb9b88867426d1a430f248550d3cc785a68fe4Rafael Espindola Frame.Begin = getContext().CreateTempSymbol(); 21949cb9b88867426d1a430f248550d3cc785a68fe4Rafael Espindola EmitLabel(Frame.Begin); 22049cb9b88867426d1a430f248550d3cc785a68fe4Rafael Espindola } 221cdfecc8759941c2996214070478d30084b79d463Rafael Espindola} 222cdfecc8759941c2996214070478d30084b79d463Rafael Espindola 223066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindolavoid MCStreamer::EmitCFIEndProc() { 22489b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola EnsureValidFrame(); 22589b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 2261fe9737eb49ecb80fbb547f0e16e10a726cd53cfRafael Espindola EmitCFIEndProcImpl(*CurFrame); 2271fe9737eb49ecb80fbb547f0e16e10a726cd53cfRafael Espindola} 2281fe9737eb49ecb80fbb547f0e16e10a726cd53cfRafael Espindola 2291fe9737eb49ecb80fbb547f0e16e10a726cd53cfRafael Espindolavoid MCStreamer::EmitCFIEndProcImpl(MCDwarfFrameInfo &Frame) { 2301fe9737eb49ecb80fbb547f0e16e10a726cd53cfRafael Espindola} 2311fe9737eb49ecb80fbb547f0e16e10a726cd53cfRafael Espindola 2321fe9737eb49ecb80fbb547f0e16e10a726cd53cfRafael Espindolavoid MCStreamer::RecordProcEnd(MCDwarfFrameInfo &Frame) { 2331fe9737eb49ecb80fbb547f0e16e10a726cd53cfRafael Espindola Frame.End = getContext().CreateTempSymbol(); 2341fe9737eb49ecb80fbb547f0e16e10a726cd53cfRafael Espindola EmitLabel(Frame.End); 235cdfecc8759941c2996214070478d30084b79d463Rafael Espindola} 236cdfecc8759941c2996214070478d30084b79d463Rafael Espindola 237529a01df02ad221e8e55097a8ee36b85234eb078Rafael EspindolaMCSymbol *MCStreamer::EmitCFICommon() { 238b40a71fda188f8ca564e606ac2cb051a44ada311Rafael Espindola EnsureValidFrame(); 239b40a71fda188f8ca564e606ac2cb051a44ada311Rafael Espindola MCSymbol *Label = getContext().CreateTempSymbol(); 240b40a71fda188f8ca564e606ac2cb051a44ada311Rafael Espindola EmitLabel(Label); 241529a01df02ad221e8e55097a8ee36b85234eb078Rafael Espindola return Label; 242529a01df02ad221e8e55097a8ee36b85234eb078Rafael Espindola} 243529a01df02ad221e8e55097a8ee36b85234eb078Rafael Espindola 244529a01df02ad221e8e55097a8ee36b85234eb078Rafael Espindolavoid MCStreamer::EmitCFIDefCfa(int64_t Register, int64_t Offset) { 245529a01df02ad221e8e55097a8ee36b85234eb078Rafael Espindola MCSymbol *Label = EmitCFICommon(); 24628c9ea3c13dfb8f6bb3226ba511d189135fcb140Rafael Espindola MCCFIInstruction Instruction = 24728c9ea3c13dfb8f6bb3226ba511d189135fcb140Rafael Espindola MCCFIInstruction::createDefCfa(Label, Register, Offset); 248529a01df02ad221e8e55097a8ee36b85234eb078Rafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 249b40a71fda188f8ca564e606ac2cb051a44ada311Rafael Espindola CurFrame->Instructions.push_back(Instruction); 250b40a71fda188f8ca564e606ac2cb051a44ada311Rafael Espindola} 251b40a71fda188f8ca564e606ac2cb051a44ada311Rafael Espindola 252066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindolavoid MCStreamer::EmitCFIDefCfaOffset(int64_t Offset) { 253529a01df02ad221e8e55097a8ee36b85234eb078Rafael Espindola MCSymbol *Label = EmitCFICommon(); 25428c9ea3c13dfb8f6bb3226ba511d189135fcb140Rafael Espindola MCCFIInstruction Instruction = 25528c9ea3c13dfb8f6bb3226ba511d189135fcb140Rafael Espindola MCCFIInstruction::createDefCfaOffset(Label, Offset); 256529a01df02ad221e8e55097a8ee36b85234eb078Rafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 257fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola CurFrame->Instructions.push_back(Instruction); 258cdfecc8759941c2996214070478d30084b79d463Rafael Espindola} 259cdfecc8759941c2996214070478d30084b79d463Rafael Espindola 2605d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962Rafael Espindolavoid MCStreamer::EmitCFIAdjustCfaOffset(int64_t Adjustment) { 261529a01df02ad221e8e55097a8ee36b85234eb078Rafael Espindola MCSymbol *Label = EmitCFICommon(); 26228c9ea3c13dfb8f6bb3226ba511d189135fcb140Rafael Espindola MCCFIInstruction Instruction = 26328c9ea3c13dfb8f6bb3226ba511d189135fcb140Rafael Espindola MCCFIInstruction::createAdjustCfaOffset(Label, Adjustment); 264529a01df02ad221e8e55097a8ee36b85234eb078Rafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 2655d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962Rafael Espindola CurFrame->Instructions.push_back(Instruction); 2665d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962Rafael Espindola} 2675d7dcd3335234d2a2bc16dc69f86fbb5dcaa8962Rafael Espindola 268066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindolavoid MCStreamer::EmitCFIDefCfaRegister(int64_t Register) { 269529a01df02ad221e8e55097a8ee36b85234eb078Rafael Espindola MCSymbol *Label = EmitCFICommon(); 27028c9ea3c13dfb8f6bb3226ba511d189135fcb140Rafael Espindola MCCFIInstruction Instruction = 27128c9ea3c13dfb8f6bb3226ba511d189135fcb140Rafael Espindola MCCFIInstruction::createDefCfaRegister(Label, Register); 272529a01df02ad221e8e55097a8ee36b85234eb078Rafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 273b4601bd2ffdde372f1323f6b6ec98acd433501ceRafael Espindola CurFrame->Instructions.push_back(Instruction); 274cdfecc8759941c2996214070478d30084b79d463Rafael Espindola} 275cdfecc8759941c2996214070478d30084b79d463Rafael Espindola 276066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindolavoid MCStreamer::EmitCFIOffset(int64_t Register, int64_t Offset) { 277529a01df02ad221e8e55097a8ee36b85234eb078Rafael Espindola MCSymbol *Label = EmitCFICommon(); 27828c9ea3c13dfb8f6bb3226ba511d189135fcb140Rafael Espindola MCCFIInstruction Instruction = 2797f74d2c2c197eec76ae2b41fed9c227c0dcc04cbRafael Espindola MCCFIInstruction::createOffset(Label, Register, Offset); 280529a01df02ad221e8e55097a8ee36b85234eb078Rafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 281b790a17efba26f4365b5ffb847dd53fde063c48dRafael Espindola CurFrame->Instructions.push_back(Instruction); 282cdfecc8759941c2996214070478d30084b79d463Rafael Espindola} 283cdfecc8759941c2996214070478d30084b79d463Rafael Espindola 28425f492e77858dc5a95fcd7180e73aff47925b668Rafael Espindolavoid MCStreamer::EmitCFIRelOffset(int64_t Register, int64_t Offset) { 285529a01df02ad221e8e55097a8ee36b85234eb078Rafael Espindola MCSymbol *Label = EmitCFICommon(); 28628c9ea3c13dfb8f6bb3226ba511d189135fcb140Rafael Espindola MCCFIInstruction Instruction = 28728c9ea3c13dfb8f6bb3226ba511d189135fcb140Rafael Espindola MCCFIInstruction::createRelOffset(Label, Register, Offset); 288529a01df02ad221e8e55097a8ee36b85234eb078Rafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 28925f492e77858dc5a95fcd7180e73aff47925b668Rafael Espindola CurFrame->Instructions.push_back(Instruction); 29025f492e77858dc5a95fcd7180e73aff47925b668Rafael Espindola} 29125f492e77858dc5a95fcd7180e73aff47925b668Rafael Espindola 292066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindolavoid MCStreamer::EmitCFIPersonality(const MCSymbol *Sym, 2933a83c40ab61d5ca624f2bbadd70237c6adbdb304Rafael Espindola unsigned Encoding) { 29489b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola EnsureValidFrame(); 29589b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 29689b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola CurFrame->Personality = Sym; 2973a83c40ab61d5ca624f2bbadd70237c6adbdb304Rafael Espindola CurFrame->PersonalityEncoding = Encoding; 298cdfecc8759941c2996214070478d30084b79d463Rafael Espindola} 299cdfecc8759941c2996214070478d30084b79d463Rafael Espindola 300066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindolavoid MCStreamer::EmitCFILsda(const MCSymbol *Sym, unsigned Encoding) { 30189b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola EnsureValidFrame(); 30289b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 30389b9372605db2ce3b0085c84089e389f7bc1fbddRafael Espindola CurFrame->Lsda = Sym; 304bdc3167c086dd4358e24692075db5e7784140843Rafael Espindola CurFrame->LsdaEncoding = Encoding; 305cdfecc8759941c2996214070478d30084b79d463Rafael Espindola} 306cdfecc8759941c2996214070478d30084b79d463Rafael Espindola 307066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindolavoid MCStreamer::EmitCFIRememberState() { 308529a01df02ad221e8e55097a8ee36b85234eb078Rafael Espindola MCSymbol *Label = EmitCFICommon(); 30928c9ea3c13dfb8f6bb3226ba511d189135fcb140Rafael Espindola MCCFIInstruction Instruction = MCCFIInstruction::createRememberState(Label); 310529a01df02ad221e8e55097a8ee36b85234eb078Rafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 311fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola CurFrame->Instructions.push_back(Instruction); 312fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola} 313fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola 314066c2f495ae396ce5335e374c45b1e4ace4f2470Rafael Espindolavoid MCStreamer::EmitCFIRestoreState() { 315fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola // FIXME: Error if there is no matching cfi_remember_state. 316529a01df02ad221e8e55097a8ee36b85234eb078Rafael Espindola MCSymbol *Label = EmitCFICommon(); 31728c9ea3c13dfb8f6bb3226ba511d189135fcb140Rafael Espindola MCCFIInstruction Instruction = MCCFIInstruction::createRestoreState(Label); 318529a01df02ad221e8e55097a8ee36b85234eb078Rafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 319fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola CurFrame->Instructions.push_back(Instruction); 320fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola} 321fe024d0a624404ada11fb330e7360abc5f88742eRafael Espindola 322c57543964d1382d3d3a5005f415b6c0f49671b3aRafael Espindolavoid MCStreamer::EmitCFISameValue(int64_t Register) { 323529a01df02ad221e8e55097a8ee36b85234eb078Rafael Espindola MCSymbol *Label = EmitCFICommon(); 32428c9ea3c13dfb8f6bb3226ba511d189135fcb140Rafael Espindola MCCFIInstruction Instruction = 32528c9ea3c13dfb8f6bb3226ba511d189135fcb140Rafael Espindola MCCFIInstruction::createSameValue(Label, Register); 326529a01df02ad221e8e55097a8ee36b85234eb078Rafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 327c57543964d1382d3d3a5005f415b6c0f49671b3aRafael Espindola CurFrame->Instructions.push_back(Instruction); 328c57543964d1382d3d3a5005f415b6c0f49671b3aRafael Espindola} 329c57543964d1382d3d3a5005f415b6c0f49671b3aRafael Espindola 330ed23bdb65fe86cdb7a38c8c1998ec965e6973966Rafael Espindolavoid MCStreamer::EmitCFIRestore(int64_t Register) { 331529a01df02ad221e8e55097a8ee36b85234eb078Rafael Espindola MCSymbol *Label = EmitCFICommon(); 33228c9ea3c13dfb8f6bb3226ba511d189135fcb140Rafael Espindola MCCFIInstruction Instruction = 33328c9ea3c13dfb8f6bb3226ba511d189135fcb140Rafael Espindola MCCFIInstruction::createRestore(Label, Register); 334529a01df02ad221e8e55097a8ee36b85234eb078Rafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 335ed23bdb65fe86cdb7a38c8c1998ec965e6973966Rafael Espindola CurFrame->Instructions.push_back(Instruction); 336ed23bdb65fe86cdb7a38c8c1998ec965e6973966Rafael Espindola} 337ed23bdb65fe86cdb7a38c8c1998ec965e6973966Rafael Espindola 3386f0b181bc70318f8d5d4b9bdead7fc748677fe2aRafael Espindolavoid MCStreamer::EmitCFIEscape(StringRef Values) { 339529a01df02ad221e8e55097a8ee36b85234eb078Rafael Espindola MCSymbol *Label = EmitCFICommon(); 34028c9ea3c13dfb8f6bb3226ba511d189135fcb140Rafael Espindola MCCFIInstruction Instruction = MCCFIInstruction::createEscape(Label, Values); 341529a01df02ad221e8e55097a8ee36b85234eb078Rafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 3426f0b181bc70318f8d5d4b9bdead7fc748677fe2aRafael Espindola CurFrame->Instructions.push_back(Instruction); 3436f0b181bc70318f8d5d4b9bdead7fc748677fe2aRafael Espindola} 3446f0b181bc70318f8d5d4b9bdead7fc748677fe2aRafael Espindola 34516d7d437e03ce87fdaef7971919302920d54a966Rafael Espindolavoid MCStreamer::EmitCFISignalFrame() { 34616d7d437e03ce87fdaef7971919302920d54a966Rafael Espindola EnsureValidFrame(); 34716d7d437e03ce87fdaef7971919302920d54a966Rafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 34816d7d437e03ce87fdaef7971919302920d54a966Rafael Espindola CurFrame->IsSignalFrame = true; 34916d7d437e03ce87fdaef7971919302920d54a966Rafael Espindola} 35016d7d437e03ce87fdaef7971919302920d54a966Rafael Espindola 351c8fec7e21f5c24303eab8a8592f3b8faff347d86Rafael Espindolavoid MCStreamer::EmitCFIUndefined(int64_t Register) { 352529a01df02ad221e8e55097a8ee36b85234eb078Rafael Espindola MCSymbol *Label = EmitCFICommon(); 35328c9ea3c13dfb8f6bb3226ba511d189135fcb140Rafael Espindola MCCFIInstruction Instruction = 35428c9ea3c13dfb8f6bb3226ba511d189135fcb140Rafael Espindola MCCFIInstruction::createUndefined(Label, Register); 355529a01df02ad221e8e55097a8ee36b85234eb078Rafael Espindola MCDwarfFrameInfo *CurFrame = getCurrentFrameInfo(); 356c8fec7e21f5c24303eab8a8592f3b8faff347d86Rafael Espindola CurFrame->Instructions.push_back(Instruction); 357c8fec7e21f5c24303eab8a8592f3b8faff347d86Rafael Espindola} 358c8fec7e21f5c24303eab8a8592f3b8faff347d86Rafael Espindola 35991d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davisvoid MCStreamer::setCurrentW64UnwindInfo(MCWin64EHUnwindInfo *Frame) { 360ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis W64UnwindInfos.push_back(Frame); 361ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis CurrentW64UnwindInfo = W64UnwindInfos.back(); 3629c77398d1c89f615735d304cd7eda3c3e9b1504fCharles Davis} 3639c77398d1c89f615735d304cd7eda3c3e9b1504fCharles Davis 3640855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davisvoid MCStreamer::EnsureValidW64UnwindInfo() { 36591d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 3660855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis if (!CurFrame || CurFrame->End) 3670855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis report_fatal_error("No open Win64 EH frame function!"); 3680855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis} 3690855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis 370fbc539ff37ddd08c2480be9185e7a40919ce8940Charles Davisvoid MCStreamer::EmitWin64EHStartProc(const MCSymbol *Symbol) { 37191d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 3720855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis if (CurFrame && !CurFrame->End) 3730855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis report_fatal_error("Starting a function before ending the previous one!"); 3744eeb7b662b78f5c520fb258b3f9df18b1227cde5Charles Davis MCWin64EHUnwindInfo *Frame = new MCWin64EHUnwindInfo; 375ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis Frame->Begin = getContext().CreateTempSymbol(); 376ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis Frame->Function = Symbol; 377ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis EmitLabel(Frame->Begin); 378ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis setCurrentW64UnwindInfo(Frame); 3790855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis} 3800855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis 3810855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davisvoid MCStreamer::EmitWin64EHEndProc() { 3820855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis EnsureValidW64UnwindInfo(); 38391d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 38491d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis if (CurFrame->ChainedParent) 3850855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis report_fatal_error("Not all chained regions terminated!"); 3860855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis CurFrame->End = getContext().CreateTempSymbol(); 3870855bc5b973320052c87bdcc2fa17b9711edc3deCharles Davis EmitLabel(CurFrame->End); 388ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis} 389ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis 390440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davisvoid MCStreamer::EmitWin64EHStartChained() { 39191d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis EnsureValidW64UnwindInfo(); 3924eeb7b662b78f5c520fb258b3f9df18b1227cde5Charles Davis MCWin64EHUnwindInfo *Frame = new MCWin64EHUnwindInfo; 39391d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 394ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis Frame->Begin = getContext().CreateTempSymbol(); 395ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis Frame->Function = CurFrame->Function; 396ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis Frame->ChainedParent = CurFrame; 397ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis EmitLabel(Frame->Begin); 398ca93138e11f404a19553049a569f1fa6ad491b67Charles Davis setCurrentW64UnwindInfo(Frame); 399f07090134d06e0cf3508e8b8e87d775f0a7982c1Charles Davis} 400f07090134d06e0cf3508e8b8e87d775f0a7982c1Charles Davis 401440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davisvoid MCStreamer::EmitWin64EHEndChained() { 40291d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis EnsureValidW64UnwindInfo(); 40391d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 40491d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis if (!CurFrame->ChainedParent) 40591d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis report_fatal_error("End of a chained region outside a chained region!"); 40691d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis CurFrame->End = getContext().CreateTempSymbol(); 40791d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis EmitLabel(CurFrame->End); 40891d9a1c0f7c598d51c50f80bc9e8dfc1494f78c1Charles Davis CurrentW64UnwindInfo = CurFrame->ChainedParent; 409f07090134d06e0cf3508e8b8e87d775f0a7982c1Charles Davis} 410f07090134d06e0cf3508e8b8e87d775f0a7982c1Charles Davis 411440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davisvoid MCStreamer::EmitWin64EHHandler(const MCSymbol *Sym, bool Unwind, 412440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davis bool Except) { 413440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davis EnsureValidW64UnwindInfo(); 414440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 41581f3830f2ed0b26e8bd7ae62e127db427f9f350dCharles Davis if (CurFrame->ChainedParent) 41681f3830f2ed0b26e8bd7ae62e127db427f9f350dCharles Davis report_fatal_error("Chained unwind areas can't have handlers!"); 417440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davis CurFrame->ExceptionHandler = Sym; 418321fe74b2d40d7762175fbd3054fda00b5e70833Charles Davis if (!Except && !Unwind) 419440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davis report_fatal_error("Don't know what kind of handler this is!"); 420321fe74b2d40d7762175fbd3054fda00b5e70833Charles Davis if (Unwind) 421321fe74b2d40d7762175fbd3054fda00b5e70833Charles Davis CurFrame->HandlesUnwind = true; 422321fe74b2d40d7762175fbd3054fda00b5e70833Charles Davis if (Except) 423321fe74b2d40d7762175fbd3054fda00b5e70833Charles Davis CurFrame->HandlesExceptions = true; 424440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davis} 425440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davis 426440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davisvoid MCStreamer::EmitWin64EHHandlerData() { 427d0b76d00048352affac4fad0ef005e28f5340b76Charles Davis EnsureValidW64UnwindInfo(); 42881f3830f2ed0b26e8bd7ae62e127db427f9f350dCharles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 42981f3830f2ed0b26e8bd7ae62e127db427f9f350dCharles Davis if (CurFrame->ChainedParent) 43081f3830f2ed0b26e8bd7ae62e127db427f9f350dCharles Davis report_fatal_error("Chained unwind areas can't have handlers!"); 431f07090134d06e0cf3508e8b8e87d775f0a7982c1Charles Davis} 432f07090134d06e0cf3508e8b8e87d775f0a7982c1Charles Davis 433c3b162857a587c9877e903f038471b882b213232Charles Davisvoid MCStreamer::EmitWin64EHPushReg(unsigned Register) { 434c3b162857a587c9877e903f038471b882b213232Charles Davis EnsureValidW64UnwindInfo(); 435c3b162857a587c9877e903f038471b882b213232Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 436c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis MCSymbol *Label = getContext().CreateTempSymbol(); 437c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis MCWin64EHInstruction Inst(Win64EH::UOP_PushNonVol, Label, Register); 438c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis EmitLabel(Label); 439c3b162857a587c9877e903f038471b882b213232Charles Davis CurFrame->Instructions.push_back(Inst); 440f07090134d06e0cf3508e8b8e87d775f0a7982c1Charles Davis} 441f07090134d06e0cf3508e8b8e87d775f0a7982c1Charles Davis 442c3b162857a587c9877e903f038471b882b213232Charles Davisvoid MCStreamer::EmitWin64EHSetFrame(unsigned Register, unsigned Offset) { 443c3b162857a587c9877e903f038471b882b213232Charles Davis EnsureValidW64UnwindInfo(); 444c2d3022aa6104a21f4368c522ccbf9a4d282b7c6Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 445c2d3022aa6104a21f4368c522ccbf9a4d282b7c6Charles Davis if (CurFrame->LastFrameInst >= 0) 446c2d3022aa6104a21f4368c522ccbf9a4d282b7c6Charles Davis report_fatal_error("Frame register and offset already specified!"); 447edeecbff0e231c04b7222a79a26017a48668f0e2Charles Davis if (Offset & 0x0F) 448edeecbff0e231c04b7222a79a26017a48668f0e2Charles Davis report_fatal_error("Misaligned frame pointer offset!"); 449c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis MCWin64EHInstruction Inst(Win64EH::UOP_SetFPReg, NULL, Register, Offset); 4505c2256a5719172273eaef198f92d8af924ff8623Charles Davis CurFrame->LastFrameInst = CurFrame->Instructions.size(); 451c3b162857a587c9877e903f038471b882b213232Charles Davis CurFrame->Instructions.push_back(Inst); 452ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis} 453ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis 454c3b162857a587c9877e903f038471b882b213232Charles Davisvoid MCStreamer::EmitWin64EHAllocStack(unsigned Size) { 455c3b162857a587c9877e903f038471b882b213232Charles Davis EnsureValidW64UnwindInfo(); 456edeecbff0e231c04b7222a79a26017a48668f0e2Charles Davis if (Size & 7) 457edeecbff0e231c04b7222a79a26017a48668f0e2Charles Davis report_fatal_error("Misaligned stack allocation!"); 458c3b162857a587c9877e903f038471b882b213232Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 459c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis MCSymbol *Label = getContext().CreateTempSymbol(); 460c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis MCWin64EHInstruction Inst(Label, Size); 461c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis EmitLabel(Label); 462c3b162857a587c9877e903f038471b882b213232Charles Davis CurFrame->Instructions.push_back(Inst); 463ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis} 464ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis 465c3b162857a587c9877e903f038471b882b213232Charles Davisvoid MCStreamer::EmitWin64EHSaveReg(unsigned Register, unsigned Offset) { 466c3b162857a587c9877e903f038471b882b213232Charles Davis EnsureValidW64UnwindInfo(); 467edeecbff0e231c04b7222a79a26017a48668f0e2Charles Davis if (Offset & 7) 468edeecbff0e231c04b7222a79a26017a48668f0e2Charles Davis report_fatal_error("Misaligned saved register offset!"); 469c3b162857a587c9877e903f038471b882b213232Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 470c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis MCSymbol *Label = getContext().CreateTempSymbol(); 471c3b162857a587c9877e903f038471b882b213232Charles Davis MCWin64EHInstruction Inst( 472c2d3022aa6104a21f4368c522ccbf9a4d282b7c6Charles Davis Offset > 512*1024-8 ? Win64EH::UOP_SaveNonVolBig : Win64EH::UOP_SaveNonVol, 473c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis Label, Register, Offset); 474c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis EmitLabel(Label); 475c3b162857a587c9877e903f038471b882b213232Charles Davis CurFrame->Instructions.push_back(Inst); 476ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis} 477ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis 478c3b162857a587c9877e903f038471b882b213232Charles Davisvoid MCStreamer::EmitWin64EHSaveXMM(unsigned Register, unsigned Offset) { 479c3b162857a587c9877e903f038471b882b213232Charles Davis EnsureValidW64UnwindInfo(); 480edeecbff0e231c04b7222a79a26017a48668f0e2Charles Davis if (Offset & 0x0F) 481edeecbff0e231c04b7222a79a26017a48668f0e2Charles Davis report_fatal_error("Misaligned saved vector register offset!"); 482c3b162857a587c9877e903f038471b882b213232Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 483c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis MCSymbol *Label = getContext().CreateTempSymbol(); 484c3b162857a587c9877e903f038471b882b213232Charles Davis MCWin64EHInstruction Inst( 485c2d3022aa6104a21f4368c522ccbf9a4d282b7c6Charles Davis Offset > 512*1024-16 ? Win64EH::UOP_SaveXMM128Big : Win64EH::UOP_SaveXMM128, 486c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis Label, Register, Offset); 487c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis EmitLabel(Label); 488c3b162857a587c9877e903f038471b882b213232Charles Davis CurFrame->Instructions.push_back(Inst); 489ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis} 490ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis 491440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davisvoid MCStreamer::EmitWin64EHPushFrame(bool Code) { 492c3b162857a587c9877e903f038471b882b213232Charles Davis EnsureValidW64UnwindInfo(); 493c3b162857a587c9877e903f038471b882b213232Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 494c2d3022aa6104a21f4368c522ccbf9a4d282b7c6Charles Davis if (CurFrame->Instructions.size() > 0) 495c2d3022aa6104a21f4368c522ccbf9a4d282b7c6Charles Davis report_fatal_error("If present, PushMachFrame must be the first UOP"); 496c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis MCSymbol *Label = getContext().CreateTempSymbol(); 497c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis MCWin64EHInstruction Inst(Win64EH::UOP_PushMachFrame, Label, Code); 498c4cbf9b6aa95cf861a5a80bfccf615ff5c53e4efCharles Davis EmitLabel(Label); 499c3b162857a587c9877e903f038471b882b213232Charles Davis CurFrame->Instructions.push_back(Inst); 500ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis} 501ff96a12db635daf4f88cfea899e63a885dfaa9edCharles Davis 502440596ffe5bb77a202acb36d5eadd158976ff39aCharles Davisvoid MCStreamer::EmitWin64EHEndProlog() { 50361558aaf4f924fd44fd2f275fcb7ab7199ede304Charles Davis EnsureValidW64UnwindInfo(); 50461558aaf4f924fd44fd2f275fcb7ab7199ede304Charles Davis MCWin64EHUnwindInfo *CurFrame = CurrentW64UnwindInfo; 50561558aaf4f924fd44fd2f275fcb7ab7199ede304Charles Davis CurFrame->PrologEnd = getContext().CreateTempSymbol(); 50661558aaf4f924fd44fd2f275fcb7ab7199ede304Charles Davis EmitLabel(CurFrame->PrologEnd); 507cacdc4fc41f035c149d5f1b92acd587d475ffd58Charles Davis} 508cacdc4fc41f035c149d5f1b92acd587d475ffd58Charles Davis 5098f7d12ccfd8feb258bdf4e582592bc00beacc7c6Rafael Espindolavoid MCStreamer::EmitCOFFSecRel32(MCSymbol const *Symbol) { 510858143816d43e58b17bfd11cb1b57afbd7f0f893Craig Topper llvm_unreachable("This file format doesn't support this directive"); 5118f7d12ccfd8feb258bdf4e582592bc00beacc7c6Rafael Espindola} 5128f7d12ccfd8feb258bdf4e582592bc00beacc7c6Rafael Espindola 513b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikovvoid MCStreamer::EmitFnStart() { 514b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov errs() << "Not implemented yet\n"; 515b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov abort(); 516b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov} 517b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov 518b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikovvoid MCStreamer::EmitFnEnd() { 519b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov errs() << "Not implemented yet\n"; 520b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov abort(); 521b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov} 522b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov 523b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikovvoid MCStreamer::EmitCantUnwind() { 524b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov errs() << "Not implemented yet\n"; 525b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov abort(); 526b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov} 527b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov 528b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikovvoid MCStreamer::EmitHandlerData() { 529b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov errs() << "Not implemented yet\n"; 530b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov abort(); 531b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov} 532b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov 533b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikovvoid MCStreamer::EmitPersonality(const MCSymbol *Personality) { 534b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov errs() << "Not implemented yet\n"; 535b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov abort(); 536b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov} 537b5e16af9ea04cc1f94ca631104e5e6be96546aa1Anton Korobeynikov 53857caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikovvoid MCStreamer::EmitSetFP(unsigned FpReg, unsigned SpReg, int64_t Offset) { 53957caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov errs() << "Not implemented yet\n"; 54057caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov abort(); 54157caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov} 54257caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov 54357caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikovvoid MCStreamer::EmitPad(int64_t Offset) { 54457caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov errs() << "Not implemented yet\n"; 54557caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov abort(); 54657caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov} 54757caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov 54857caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikovvoid MCStreamer::EmitRegSave(const SmallVectorImpl<unsigned> &RegList, bool) { 54957caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov errs() << "Not implemented yet\n"; 55057caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov abort(); 55157caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov} 55257caad7a33ff145b71545f10dcfbbf2fd0f595d3Anton Korobeynikov 553f35c62bf025411393c7df0803851010cc0e597baAdhemerval Zanellavoid MCStreamer::EmitTCEntry(const MCSymbol &S) { 554f35c62bf025411393c7df0803851010cc0e597baAdhemerval Zanella llvm_unreachable("Unsupported method"); 555f35c62bf025411393c7df0803851010cc0e597baAdhemerval Zanella} 556f35c62bf025411393c7df0803851010cc0e597baAdhemerval Zanella 557ab3b3651add0915a5a051b177029ad117a877f52Matt Fleming/// EmitRawText - If this file is backed by an assembly streamer, this dumps 55891bead790518fcf5cb26019fb1ebf2372e8a5b3fChris Lattner/// the specified string in the output .s file. This capability is 55991bead790518fcf5cb26019fb1ebf2372e8a5b3fChris Lattner/// indicated by the hasRawTextSupport() predicate. 56091bead790518fcf5cb26019fb1ebf2372e8a5b3fChris Lattnervoid MCStreamer::EmitRawText(StringRef String) { 56191bead790518fcf5cb26019fb1ebf2372e8a5b3fChris Lattner errs() << "EmitRawText called on an MCStreamer that doesn't support it, " 56291bead790518fcf5cb26019fb1ebf2372e8a5b3fChris Lattner " something must not be fully mc'ized\n"; 56391bead790518fcf5cb26019fb1ebf2372e8a5b3fChris Lattner abort(); 56491bead790518fcf5cb26019fb1ebf2372e8a5b3fChris Lattner} 56558bc4dd4a91443ddd3120b0a2f1801ad4d6aae1cChris Lattner 56658bc4dd4a91443ddd3120b0a2f1801ad4d6aae1cChris Lattnervoid MCStreamer::EmitRawText(const Twine &T) { 56758bc4dd4a91443ddd3120b0a2f1801ad4d6aae1cChris Lattner SmallString<128> Str; 56858bc4dd4a91443ddd3120b0a2f1801ad4d6aae1cChris Lattner T.toVector(Str); 56958bc4dd4a91443ddd3120b0a2f1801ad4d6aae1cChris Lattner EmitRawText(Str.str()); 57058bc4dd4a91443ddd3120b0a2f1801ad4d6aae1cChris Lattner} 571c25dad8750083829d9a8935ce40d0734e5488f8eRafael Espindola 572c25dad8750083829d9a8935ce40d0734e5488f8eRafael Espindolavoid MCStreamer::EmitFrames(bool usingCFI) { 573c25dad8750083829d9a8935ce40d0734e5488f8eRafael Espindola if (!getNumFrameInfos()) 574c25dad8750083829d9a8935ce40d0734e5488f8eRafael Espindola return; 575c25dad8750083829d9a8935ce40d0734e5488f8eRafael Espindola 576c25dad8750083829d9a8935ce40d0734e5488f8eRafael Espindola if (EmitEHFrame) 57740a7dbbeff44c4cbd8c7e4f07f28dd614f8a5d08Rafael Espindola MCDwarfFrameEmitter::Emit(*this, usingCFI, true); 57840a7dbbeff44c4cbd8c7e4f07f28dd614f8a5d08Rafael Espindola 57940a7dbbeff44c4cbd8c7e4f07f28dd614f8a5d08Rafael Espindola if (EmitDebugFrame) 58040a7dbbeff44c4cbd8c7e4f07f28dd614f8a5d08Rafael Espindola MCDwarfFrameEmitter::Emit(*this, usingCFI, false); 581c25dad8750083829d9a8935ce40d0734e5488f8eRafael Espindola} 58238ea9eecd7c810e11f96c8306b241f9db88fc62fCharles Davis 58338ea9eecd7c810e11f96c8306b241f9db88fc62fCharles Davisvoid MCStreamer::EmitW64Tables() { 58438ea9eecd7c810e11f96c8306b241f9db88fc62fCharles Davis if (!getNumW64UnwindInfos()) 58538ea9eecd7c810e11f96c8306b241f9db88fc62fCharles Davis return; 58638ea9eecd7c810e11f96c8306b241f9db88fc62fCharles Davis 58738ea9eecd7c810e11f96c8306b241f9db88fc62fCharles Davis MCWin64EHUnwindEmitter::Emit(*this); 58838ea9eecd7c810e11f96c8306b241f9db88fc62fCharles Davis} 58999b4237c1647156f0e1d3d7e03efdab23ed79778Rafael Espindola 59099b4237c1647156f0e1d3d7e03efdab23ed79778Rafael Espindolavoid MCStreamer::Finish() { 59199b4237c1647156f0e1d3d7e03efdab23ed79778Rafael Espindola if (!FrameInfos.empty() && !FrameInfos.back().End) 59299b4237c1647156f0e1d3d7e03efdab23ed79778Rafael Espindola report_fatal_error("Unfinished frame!"); 59399b4237c1647156f0e1d3d7e03efdab23ed79778Rafael Espindola 59499b4237c1647156f0e1d3d7e03efdab23ed79778Rafael Espindola FinishImpl(); 59599b4237c1647156f0e1d3d7e03efdab23ed79778Rafael Espindola} 596