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<h1>Source code for windows.debug.symboldbg</h1><div class="highlight"><pre>
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<span></span><span class="kn">import</span> <span class="nn">windows</span>
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<span class="kn">import</span> <span class="nn">windows.generated_def</span> <span class="k">as</span> <span class="nn">gdef</span>
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<span class="kn">from</span> <span class="nn">windows.pycompat</span> <span class="kn">import</span> <span class="n">int_types</span>
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<span class="kn">from</span> <span class="nn">.</span> <span class="kn">import</span> <span class="n">Debugger</span>
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<span class="kn">from</span> <span class="nn">.</span> <span class="kn">import</span> <span class="n">symbols</span>
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<div class="viewcode-block" id="SymbolDebugger">
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<a class="viewcode-back" href="../../../debug.html#windows.debug.SymbolDebugger">[docs]</a>
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<span class="k">class</span> <span class="nc">SymbolDebugger</span><span class="p">(</span><span class="n">Debugger</span><span class="p">):</span>
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<span class="w"> </span><span class="sd">"""A debugger using the symbol API (hence PDB) for name resolution.</span>
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<span class="sd"> To use PDB, a correct version of dbghelp should be configured as well as ``_NT_SYMBOL_PATH``.</span>
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<span class="sd"> (See :ref:`debug_symbols_module`)</span>
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<span class="sd"> This debugger add a ``current_resolver`` variable (A :class:`~windows.debug.symbols.ProcessSymbolHandler`) for the ``current_process``.</span>
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<span class="sd"> """</span>
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<span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">):</span>
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<span class="nb">super</span><span class="p">(</span><span class="n">SymbolDebugger</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="fm">__init__</span><span class="p">(</span><span class="o">*</span><span class="n">args</span><span class="p">,</span> <span class="o">**</span><span class="n">kwargs</span><span class="p">)</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">_resolvers</span> <span class="o">=</span> <span class="p">{}</span>
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<span class="k">def</span> <span class="nf">_internal_on_load_dll</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">load_dll</span><span class="p">):</span>
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<span class="n">path</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_get_loaded_dll</span><span class="p">(</span><span class="n">load_dll</span><span class="p">)</span>
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<span class="c1"># Path is used instead of name for naming the module (and can be set to whatever if using file handle)</span>
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<span class="n">x</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">current_resolver</span><span class="o">.</span><span class="n">load_module</span><span class="p">(</span><span class="n">load_dll</span><span class="o">.</span><span class="n">hFile</span><span class="p">,</span> <span class="n">path</span><span class="o">=</span><span class="n">path</span><span class="p">,</span> <span class="n">addr</span><span class="o">=</span><span class="n">load_dll</span><span class="o">.</span><span class="n">lpBaseOfDll</span><span class="p">)</span>
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<span class="k">def</span> <span class="nf">_internal_on_create_process</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">create_process</span><span class="p">):</span>
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<span class="c1"># Create and setup a symbol resolver for the new process</span>
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<span class="n">resolver</span> <span class="o">=</span> <span class="n">symbols</span><span class="o">.</span><span class="n">ProcessSymbolHandler</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">current_process</span><span class="p">)</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">_resolvers</span><span class="p">[</span><span class="bp">self</span><span class="o">.</span><span class="n">current_process</span><span class="o">.</span><span class="n">pid</span><span class="p">]</span> <span class="o">=</span> <span class="n">resolver</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">current_resolver</span> <span class="o">=</span> <span class="n">resolver</span>
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<span class="k">def</span> <span class="nf">_update_debugger_state</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">debug_event</span><span class="p">):</span>
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<span class="nb">super</span><span class="p">(</span><span class="n">SymbolDebugger</span><span class="p">,</span> <span class="bp">self</span><span class="p">)</span><span class="o">.</span><span class="n">_update_debugger_state</span><span class="p">(</span><span class="n">debug_event</span><span class="p">)</span>
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<span class="bp">self</span><span class="o">.</span><span class="n">current_resolver</span> <span class="o">=</span> <span class="bp">self</span><span class="o">.</span><span class="n">_resolvers</span><span class="p">[</span><span class="n">debug_event</span><span class="o">.</span><span class="n">dwProcessId</span><span class="p">]</span>
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<span class="k">def</span> <span class="nf">_resolve</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">addr</span><span class="p">,</span> <span class="n">target</span><span class="p">):</span>
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<span class="k">if</span> <span class="nb">isinstance</span><span class="p">(</span><span class="n">addr</span><span class="p">,</span> <span class="n">int_types</span><span class="p">):</span>
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<span class="k">return</span> <span class="n">addr</span>
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<span class="k">if</span> <span class="s2">"+"</span> <span class="ow">in</span> <span class="n">addr</span><span class="p">:</span>
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<span class="n">symbol</span><span class="p">,</span> <span class="n">deplacement</span> <span class="o">=</span> <span class="n">addr</span><span class="o">.</span><span class="n">split</span><span class="p">(</span><span class="s2">"+"</span><span class="p">,</span> <span class="mi">1</span><span class="p">)</span>
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<span class="n">deplacement</span> <span class="o">=</span> <span class="nb">int</span><span class="p">(</span><span class="n">deplacement</span><span class="p">,</span> <span class="mi">0</span><span class="p">)</span>
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<span class="k">else</span><span class="p">:</span>
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<span class="n">symbol</span> <span class="o">=</span> <span class="n">addr</span>
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<span class="n">deplacement</span> <span class="o">=</span> <span class="mi">0</span>
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<span class="k">try</span><span class="p">:</span>
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<span class="k">return</span> <span class="bp">self</span><span class="o">.</span><span class="n">current_resolver</span><span class="p">[</span><span class="n">symbol</span><span class="p">]</span><span class="o">.</span><span class="n">addr</span> <span class="o">+</span> <span class="n">deplacement</span>
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<span class="k">except</span> <span class="ne">WindowsError</span> <span class="k">as</span> <span class="n">e</span><span class="p">:</span>
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<span class="k">if</span> <span class="ow">not</span> <span class="n">e</span><span class="o">.</span><span class="n">winerror</span> <span class="ow">in</span> <span class="p">(</span><span class="n">gdef</span><span class="o">.</span><span class="n">ERROR_NOT_FOUND</span><span class="p">,</span> <span class="n">gdef</span><span class="o">.</span><span class="n">ERROR_MOD_NOT_FOUND</span><span class="p">):</span>
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<span class="k">raise</span>
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<span class="k">return</span> <span class="kc">None</span></div>
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</pre></div>
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