src/monitor/dwarf/Parser.cpp

   1 #include <iostream>
   2 #include "Message.h"
   3 #include "Parser.h"
   4
   5 namespace Aesalon {
   6 namespace Monitor {
   7 namespace DWARF {
   8
   9 Parser::Parser(Misc::SmartPointer<ELF::Parser> elf_parser) : elf_parser(elf_parser) {
  10     Misc::SmartPointer<ELF::Section> debug_info_section = elf_parser->get_section(".debug_info");
  11     Misc::SmartPointer<Block> debug_info = elf_parser->get_section(".debug_info")->get_content();
  12 }
  13
  14 Word Parser::parse_uleb128(Misc::SmartPointer<Block> block) {
  15     Word result = 0;
  16     int offset = 0;
  17
  18     while(true) {
  19         Byte next = *block->get_data(offset);
  20         result |= (next & 0x7f) << (offset * 7);
  21         if(next & 0x80) break;
  22         offset ++;
  23     }
  24
  25     block->remove(0, offset);
  26
  27     return result;
  28 }
  29
  30 SWord Parser::parse_sleb128(Misc::SmartPointer<Block> block) {
  31     SWord result = 0;
  32     /*int offset = 0;*/
  33
  34     return result;
  35 }
  36
  37 Word Parser::parse_u8(Misc::SmartPointer<Block> block) {
  38     Word value = 0;
  39     value = (*block->get_data(0));
  40     block->remove(0, 1);
  41     return value;
  42 }
  43
  44
  45 Word Parser::parse_u16(Misc::SmartPointer<Block> block) {
  46     Word value = 0;
  47     value = (*block->get_data(0));
  48     value += (*block->get_data(1)) << 8;
  49     block->remove(0, 2);
  50     return value;
  51 }
  52
  53 Word Parser::parse_u32(Misc::SmartPointer<Block> block) {
  54     Word value = 0;
  55     value = (*block->get_data(0));
  56     value += (*block->get_data(1)) << 8;
  57     value += (*block->get_data(2)) << 16;
  58     value += (*block->get_data(3)) << 24;
  59     block->remove(0, 4);
  60     return value;
  61 }
  62
  63 Word Parser::parse_u64(Misc::SmartPointer<Block> block) {
  64     Word value = 0;
  65     value = (*block->get_data(0));
  66     value += Word(*block->get_data(1)) << 8;
  67     value += Word(*block->get_data(2)) << 16;
  68     value += Word(*block->get_data(3)) << 24;
  69     value += Word(*block->get_data(4)) << 32;
  70     value += Word(*block->get_data(5)) << 40;
  71     value += Word(*block->get_data(6)) << 48;
  72     value += Word(*block->get_data(7)) << 56;
  73
  74     block->remove(0, 8);
  75     return value;
  76 }
  77
  78 } // namespace DWARF
  79 } // namespace Monitor
  80 } // namespace Aesalon