Elf file reader.

Reads the symbols of all sections and provides
addresses to functions and data objects.
 


git-svn-id: https://www4.informatik.uni-erlangen.de/i4svn/danceos/trunk/devel/fail@1592 8c4709b5-6ec9-48aa-a5cd-a96041d1645a

src/core/util/ElfReader.hpp

@@ -0,0 +1,58 @@
+#ifndef __ELFREADER_HPP__
+  #define __ELFREADER_HPP__
+
+#include <string>
+#include <map>
+
+#include "sal/SALConfig.hpp"
+#include "Logger.hpp"
+
+namespace fail {
+
+/**
+ * \class ElfReader
+ * Parses an ELF file and provides a list of symbol names
+ * and corresponding addresses
+ */
+
+class ElfReader {
+
+public:
+	
+  /** 
+   * Constructor.
+   * @param path Path to the ELF file.
+   */
+	ElfReader(const char* path);
+
+  /**
+   * Get guest address by symbol name
+   * @param name The symbol name as string
+   * @return The according addres if found, else -1
+   */	
+	guest_address_t getAddressByName(const std::string& name) ;
+	
+
+  /**
+   * Get symbol name associated to an address
+   * This is interesting when checking instruction pointers.
+   * @param name The address of a symbol (or around a symbol -> instruction pointer)
+   * @return The according address if found, else -1
+	 * 
+   * \todo multimap sorted by addresses
+   * Name is at first key <= address
+   */
+  std::string getNameByAddress(guest_address_t address) ; 
+  	
+
+private:
+	Logger m_log;
+	std::map<std::string, guest_address_t> m_map;	
+
+	int process_symboltable(int sect_num, FILE* fp);
+};
+
+} // end-of-namespace fail
+
+#endif //__ELFREADER_HPP__
+