1 //===-- AsmPrinterDwarf.cpp - AsmPrinter Dwarf Support --------------------===//
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
7 //===----------------------------------------------------------------------===//
11 //===----------------------------------------------------------------------===//
29 #define DEBUG_TYPE "asm-printer"
31 //===----------------------------------------------------------------------===//
33 //===----------------------------------------------------------------------===//
86 /// EmitEncodingByte - Emit a .byte 42 directive that corresponds to an
93       OutStreamer->AddComment(Twine(Desc) + " Encoding = " +  in emitEncodingByte()
96       OutStreamer->AddComment(Twine("Encoding = ") + DecodeDWARFEncoding(Val));  in emitEncodingByte()
99   OutStreamer->emitIntValue(Val, 1);  in emitEncodingByte()
102 /// GetSizeOfEncodedValue - Return the size of the encoding in bytes.
111     return MAI->getCodePointerSize();  in GetSizeOfEncodedValue()
127     OutStreamer->emitValue(Exp, GetSizeOfEncodedValue(Encoding));  in emitTTypeReference()
129     OutStreamer->emitIntValue(0, GetSizeOfEncodedValue(Encoding));  in emitTTypeReference()
136     if (MAI->needsDwarfSectionOffsetDirective()) {  in emitDwarfSymbolReference()
139       OutStreamer->emitCOFFSecRel32(Label, /*Offset=*/0);  in emitDwarfSymbolReference()
145       OutStreamer->emitSymbolValue(Label, getDwarfOffsetByteSize());  in emitDwarfSymbolReference()
151   emitLabelDifference(Label, Label->getSection().getBeginSymbol(),  in emitDwarfSymbolReference()
163   OutStreamer->emitIntValue(S.Offset, getDwarfOffsetByteSize());  in emitDwarfStringOffset()
172   OutStreamer->emitIntValue(Value, getDwarfOffsetByteSize());  in emitDwarfLengthOrOffset()
177   OutStreamer->emitDwarfUnitLength(Length, Comment);  in emitDwarfUnitLength()
182   return OutStreamer->emitDwarfUnitLength(Prefix, Comment);  in emitDwarfUnitLength()
199     OutStreamer->emitIntValue(Value, GetSizeOfEncodedValue(Encoding));  in emitCallSiteValue()
202 //===----------------------------------------------------------------------===//
204 //===----------------------------------------------------------------------===//
207   SMLoc Loc = Inst.getLoc();  in emitCFIInstruction()  local
212     OutStreamer->emitCFIDefCfaOffset(Inst.getOffset(), Loc);  in emitCFIInstruction()
215     OutStreamer->emitCFIAdjustCfaOffset(Inst.getOffset(), Loc);  in emitCFIInstruction()
218     OutStreamer->emitCFIDefCfa(Inst.getRegister(), Inst.getOffset(), Loc);  in emitCFIInstruction()
221     OutStreamer->emitCFIDefCfaRegister(Inst.getRegister(), Loc);  in emitCFIInstruction()
224     OutStreamer->emitCFILLVMDefAspaceCfa(Inst.getRegister(), Inst.getOffset(),  in emitCFIInstruction()
225                                          Inst.getAddressSpace(), Loc);  in emitCFIInstruction()
228     OutStreamer->emitCFIOffset(Inst.getRegister(), Inst.getOffset(), Loc);  in emitCFIInstruction()
231     OutStreamer->emitCFIRegister(Inst.getRegister(), Inst.getRegister2(), Loc);  in emitCFIInstruction()
234     OutStreamer->emitCFIWindowSave(Loc);  in emitCFIInstruction()
237     OutStreamer->emitCFINegateRAState(Loc);  in emitCFIInstruction()
240     OutStreamer->emitCFISameValue(Inst.getRegister(), Loc);  in emitCFIInstruction()
243     OutStreamer->emitCFIGnuArgsSize(Inst.getOffset(), Loc);  in emitCFIInstruction()
246     OutStreamer->AddComment(Inst.getComment());  in emitCFIInstruction()
247     OutStreamer->emitCFIEscape(Inst.getValues(), Loc);  in emitCFIInstruction()
250     OutStreamer->emitCFIRestore(Inst.getRegister(), Loc);  in emitCFIInstruction()
253     OutStreamer->emitCFIUndefined(Inst.getRegister(), Loc);  in emitCFIInstruction()
256     OutStreamer->emitCFIRememberState(Loc);  in emitCFIInstruction()
259     OutStreamer->emitCFIRestoreState(Loc);  in emitCFIInstruction()
265   // Emit the code (index) for the abbreviation.  in emitDwarfDIE()
267     OutStreamer->AddComment("Abbrev [" + Twine(Die.getAbbrevNumber()) + "] 0x" +  in emitDwarfDIE()
279       OutStreamer->AddComment(dwarf::AttributeString(Attr));  in emitDwarfDIE()
281         OutStreamer->AddComment(  in emitDwarfDIE()
294     OutStreamer->AddComment("End Of Children Mark");  in emitDwarfDIE()
300   // Emit the abbreviations code (base 1 index.)  in emitDwarfAbbrev()
301   emitULEB128(Abbrev.getNumber(), "Abbreviation Code");  in emitDwarfAbbrev()