include/monitor/ElfParser.h

   1 /** Aesalon, a tool to visualize program behaviour in real time.
   2         Copyright (C) 2009-2011, Aesalon development team.
   3
   4         Aesalon is distributed under the terms of the GNU GPLv3. See
   5         the included file LICENSE for more information.
   6
   7         @file include/monitor/ElfParser.h
   8 */
   9
  10 #ifndef AesalonMonitor_ElfParser_H
  11 #define AesalonMonitor_ElfParser_H
  12
  13 #include <stdint.h>
  14 #include <string>
  15
  16 #include "config/Vault.h"
  17
  18 #define ELF32_TYPES Elf32_Ehdr, Elf32_Shdr, Elf32_Sym
  19 #define ELF64_TYPES Elf64_Ehdr, Elf64_Shdr, Elf64_Sym
  20
  21 namespace Monitor {
  22
  23 class ElfParser {
  24 public:
  25         class Processor {
  26         public:
  27                 virtual ~Processor() {}
  28
  29                 virtual void process(const char *symbolName, uint64_t symbolAddress, uint64_t symbolSize) = 0;
  30         };
  31         int m_fd;
  32         uint8_t *m_file;
  33         uint32_t m_fileSize;
  34         Processor *m_processor;
  35
  36         enum ElfType {
  37                 ELF32,
  38                 ELF64
  39         } m_elfType;
  40
  41         enum Encoding {
  42                 MSB_ENCODING,
  43                 LSB_ENCODING
  44         } m_encoding;
  45 public:
  46         ElfParser();
  47         virtual ~ElfParser();
  48
  49         void parse(const std::string &filename, Processor *processor);
  50 private:
  51         bool identValid();
  52
  53         template<typename ELFHeader, typename SectionHeader, typename SymbolHeader>
  54         void parseElf();
  55
  56         template<typename SymbolHeader>
  57         void parseSymbols(SymbolHeader *symbols, int symbolCount, const char *stringTable);
  58 };
  59
  60 } // namespace Monitor
  61
  62 #endif