CMake/Source/cmELF.h
Kitware Robot d9fd2f5402 Revise C++ coding style using clang-format
Run the `Utilities/Scripts/clang-format.bash` script to update
all our C++ code to a new style defined by `.clang-format`.
Use `clang-format` version 3.8.

* If you reached this commit for a line in `git blame`, re-run the blame
  operation starting at the parent of this commit to see older history
  for the content.

* See the parent commit for instructions to rebase a change across this
  style transition commit.
2016-05-16 16:05:19 -04:00

106 lines
2.9 KiB
C++

/*============================================================================
CMake - Cross Platform Makefile Generator
Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
Distributed under the OSI-approved BSD License (the "License");
see accompanying file Copyright.txt for details.
This software is distributed WITHOUT ANY WARRANTY; without even the
implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the License for more information.
============================================================================*/
#ifndef cmELF_h
#define cmELF_h
#if !defined(CMAKE_USE_ELF_PARSER)
#error "This file may be included only if CMAKE_USE_ELF_PARSER is enabled."
#endif
class cmELFInternal;
/** \class cmELF
* \brief Executable and Link Format (ELF) parser.
*/
class cmELF
{
public:
/** Construct with the name of the ELF input file to parse. */
cmELF(const char* fname);
/** Destruct. */
~cmELF();
/** Get the error message if any. */
std::string const& GetErrorMessage() const { return this->ErrorMessage; }
/** Boolean conversion. True if the ELF file is valid. */
operator bool() const { return this->Valid(); }
/** Enumeration of ELF file types. */
enum FileType
{
FileTypeInvalid,
FileTypeRelocatableObject,
FileTypeExecutable,
FileTypeSharedLibrary,
FileTypeCore,
FileTypeSpecificOS,
FileTypeSpecificProc
};
/** Represent string table entries. */
struct StringEntry
{
// The string value itself.
std::string Value;
// The position in the file at which the string appears.
unsigned long Position;
// The size of the string table entry. This includes the space
// allocated for one or more null terminators.
unsigned long Size;
// The index of the section entry referencing the string.
int IndexInSection;
};
/** Get the type of the file opened. */
FileType GetFileType() const;
/** Get the number of ELF sections present. */
unsigned int GetNumberOfSections() const;
/** Get the number of DYNAMIC section entries before the first
DT_NULL. Returns zero on error. */
unsigned int GetDynamicEntryCount() const;
/** Get the position of a DYNAMIC section header entry. Returns
zero on error. */
unsigned long GetDynamicEntryPosition(int index) const;
/** Read bytes from the file. */
bool ReadBytes(unsigned long pos, unsigned long size, char* buf) const;
/** Get the SONAME field if any. */
bool GetSOName(std::string& soname);
StringEntry const* GetSOName();
/** Get the RPATH field if any. */
StringEntry const* GetRPath();
/** Get the RUNPATH field if any. */
StringEntry const* GetRunPath();
/** Print human-readable information about the ELF file. */
void PrintInfo(std::ostream& os) const;
private:
friend class cmELFInternal;
bool Valid() const;
cmELFInternal* Internal;
std::string ErrorMessage;
};
#endif