src/monitor/SymbolResolver.cpp

   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 src/monitor/SymbolResolver.cpp
   8 */
   9
  10 #include <cstring>
  11
  12 #include "monitor/SymbolResolver.h"
  13 #include "storage/RTree.h"
  14 #include "monitor/ElfParser.h"
  15 #include "monitor/Coordinator.h"
  16
  17 namespace Monitor {
  18
  19 SymbolResolver::SymbolResolver() {
  20         m_rtree = new RTree();
  21 }
  22
  23 SymbolResolver::~SymbolResolver() {
  24         delete m_rtree;
  25 }
  26
  27 void SymbolResolver::parse(const std::string &filename, uint64_t offset) {
  28         class Processor : public ElfParser::Processor {
  29         private:
  30                 RTree *m_rtree;
  31                 uint64_t m_offset;
  32                 Storage::Mempool *m_mempool;
  33         public:
  34                 Processor(RTree *rtree, uint64_t offset) : m_rtree(rtree), m_offset(offset),
  35                         m_mempool(Coordinator::instance()->mempool()) {}
  36                 virtual ~Processor() {}
  37
  38                 virtual void process(const char *symbolName, uint64_t symbolAddress, uint64_t symbolSize) {
  39                         symbolAddress += m_offset;
  40                         RTree::Bound b;
  41                         b.setRange(RTree::Range(symbolAddress, symbolAddress + symbolSize), 0);
  42
  43                         char *name = static_cast<char *>(m_mempool->request(std::strlen(symbolName)));
  44                         strcpy(name, symbolName);
  45                         m_rtree->insert(b, name);
  46                 }
  47         };
  48
  49         Processor p(m_rtree, offset);
  50
  51         ElfParser ep;
  52         ep.parse(filename, &p);
  53 }
  54
  55 } // namespace Monitor