1 //===- lib/DebugInfo/Symbolize/DIPrinter.cpp ------------------------------===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This file defines the DIPrinter class, which is responsible for printing 11 // structures defined in DebugInfo/DIContext.h 12 // 13 //===----------------------------------------------------------------------===// 14 15 #include "llvm/DebugInfo/Symbolize/DIPrinter.h" 16 17 #include "llvm/DebugInfo/DIContext.h" 18 19 namespace llvm { 20 namespace symbolize { 21 22 // By default, DILineInfo contains "<invalid>" for function/filename it 23 // cannot fetch. We replace it to "??" to make our output closer to addr2line. 24 static const char kDILineInfoBadString[] = "<invalid>"; 25 static const char kBadString[] = "??"; 26 27 void DIPrinter::printName(const DILineInfo &Info, bool Inlined) { 28 if (PrintFunctionNames) { 29 std::string FunctionName = Info.FunctionName; 30 if (FunctionName == kDILineInfoBadString) 31 FunctionName = kBadString; 32 33 StringRef Delimiter = (PrintPretty == true) ? " at " : "\n"; 34 StringRef Prefix = (PrintPretty && Inlined) ? " (inlined by) " : ""; 35 OS << Prefix << FunctionName << Delimiter; 36 } 37 std::string Filename = Info.FileName; 38 if (Filename == kDILineInfoBadString) 39 Filename = kBadString; 40 OS << Filename << ":" << Info.Line << ":" << Info.Column << "\n"; 41 } 42 43 DIPrinter &DIPrinter::operator<<(const DILineInfo &Info) { 44 printName(Info, false); 45 return *this; 46 } 47 48 DIPrinter &DIPrinter::operator<<(const DIInliningInfo &Info) { 49 uint32_t FramesNum = Info.getNumberOfFrames(); 50 if (FramesNum == 0) { 51 printName(DILineInfo(), false); 52 return *this; 53 } 54 for (uint32_t i = 0; i < FramesNum; i++) 55 printName(Info.getFrame(i), i > 0); 56 return *this; 57 } 58 59 DIPrinter &DIPrinter::operator<<(const DIGlobal &Global) { 60 std::string Name = Global.Name; 61 if (Name == kDILineInfoBadString) 62 Name = kBadString; 63 OS << Name << "\n"; 64 OS << Global.Start << " " << Global.Size << "\n"; 65 return *this; 66 } 67 68 } 69 } 70
