Imported Upstream version 2.8.9upstream/2.8.9

1 files changed, 108 insertions, 0 deletions

diff --git a/Source/cmELF.h b/Source/cmELF.h
new file mode 100644
index 000000000..ab9be4245
--- /dev/null
+++ b/Source/cmELF.h
@@ -0,0 +1,108 @@
+/*============================================================================
+  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