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//===-- LVReaderHandler.h ---------------------------------------*- C++ -*-===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
//
// This class implements the Reader handler.
//
//===----------------------------------------------------------------------===//
#ifndef LLVM_DEBUGINFO_LOGICALVIEW_READERS_LVREADERHANDLER_H
#define LLVM_DEBUGINFO_LOGICALVIEW_READERS_LVREADERHANDLER_H
#include "llvm/ADT/PointerUnion.h"
#include "llvm/DebugInfo/LogicalView/Core/LVReader.h"
#include "llvm/DebugInfo/PDB/Native/PDBFile.h"
#include "llvm/Object/Archive.h"
#include "llvm/Object/MachOUniversal.h"
#include "llvm/Object/ObjectFile.h"
#include "llvm/Support/MemoryBuffer.h"
#include "llvm/Support/ScopedPrinter.h"
#include <string>
#include <vector>
namespace llvm {
namespace logicalview {
using LVReaders = std::vector<std::unique_ptr<LVReader>>;
using ArgVector = std::vector<std::string>;
using PdbOrObj = PointerUnion<object::ObjectFile *, pdb::PDBFile *>;
// This class performs the following tasks:
// - Creates a logical reader for every binary file in the command line,
// that parses the debug information and creates a high level logical
// view representation containing scopes, symbols, types and lines.
// - Prints and compares the logical views.
//
// The supported binary formats are: ELF, Mach-O and CodeView.
class LVReaderHandler {
ArgVector &Objects;
ScopedPrinter &W;
raw_ostream &OS;
LVReaders TheReaders;
Error createReaders();
Error printReaders();
Error compareReaders();
Error handleArchive(LVReaders &Readers, StringRef Filename,
object::Archive &Arch);
Error handleBuffer(LVReaders &Readers, StringRef Filename,
MemoryBufferRef Buffer, StringRef ExePath = {});
Error handleFile(LVReaders &Readers, StringRef Filename,
StringRef ExePath = {});
Error handleMach(LVReaders &Readers, StringRef Filename,
object::MachOUniversalBinary &Mach);
Error handleObject(LVReaders &Readers, StringRef Filename,
object::Binary &Binary);
Error handleObject(LVReaders &Readers, StringRef Filename, StringRef Buffer,
StringRef ExePath);
Error createReader(StringRef Filename, LVReaders &Readers, PdbOrObj &Input,
StringRef FileFormatName, StringRef ExePath = {});
public:
LVReaderHandler() = delete;
LVReaderHandler(ArgVector &Objects, ScopedPrinter &W,
LVOptions &ReaderOptions)
: Objects(Objects), W(W), OS(W.getOStream()) {
setOptions(&ReaderOptions);
}
LVReaderHandler(const LVReaderHandler &) = delete;
LVReaderHandler &operator=(const LVReaderHandler &) = delete;
Error createReader(StringRef Filename, LVReaders &Readers) {
return handleFile(Readers, Filename);
}
Error process();
Expected<std::unique_ptr<LVReader>> createReader(StringRef Pathname) {
LVReaders Readers;
if (Error Err = createReader(Pathname, Readers))
return std::move(Err);
return std::move(Readers[0]);
}
void print(raw_ostream &OS) const;
#if !defined(NDEBUG) || defined(LLVM_ENABLE_DUMP)
void dump() const { print(dbgs()); }
#endif
};
} // end namespace logicalview
} // namespace llvm
#endif // LLVM_DEBUGINFO_LOGICALVIEW_READERS_LVREADERHANDLER_H
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