llvm/lib/DebugInfo/Symbolize/DIPrinter.cpp

//===- lib/DebugInfo/Symbolize/DIPrinter.cpp ------------------------------===//
//
//                     The LLVM Compiler Infrastructure
//
// This file is distributed under the University of Illinois Open Source
// License. See LICENSE.TXT for details.
//
//===----------------------------------------------------------------------===//
//
// This file defines the DIPrinter class, which is responsible for printing
// structures defined in DebugInfo/DIContext.h
//
//===----------------------------------------------------------------------===//

#include "llvm/DebugInfo/Symbolize/DIPrinter.h"

#include "llvm/DebugInfo/DIContext.h"

namespace llvm {
namespace symbolize {

// By default, DILineInfo contains "<invalid>" for function/filename it
// cannot fetch. We replace it to "??" to make our output closer to addr2line.
static const char kDILineInfoBadString[] = "<invalid>";
static const char kBadString[] = "??";

DIPrinter &DIPrinter::operator<<(const DILineInfo &Info) {
  if (PrintFunctionNames) {
    std::string FunctionName = Info.FunctionName;
    if (FunctionName == kDILineInfoBadString)
      FunctionName = kBadString;
    OS << FunctionName << "\n";
  }
  std::string Filename = Info.FileName;
  if (Filename == kDILineInfoBadString)
    Filename = kBadString;
  OS << Filename << ":" << Info.Line << ":" << Info.Column << "\n";
  return *this;
}

DIPrinter &DIPrinter::operator<<(const DIInliningInfo &Info) {
  uint32_t FramesNum = Info.getNumberOfFrames();
  if (FramesNum == 0)
    return (*this << DILineInfo());
  for (uint32_t i = 0; i < FramesNum; i++) {
    *this << Info.getFrame(i);
  }
  return *this;
}

DIPrinter &DIPrinter::operator<<(const DIGlobal &Global) {
  std::string Name = Global.Name;
  if (Name == kDILineInfoBadString)
    Name = kBadString;
  OS << Name << "\n";
  OS << Global.Start << " " << Global.Size << "\n";
  return *this;
}

}
}