gdb-multiarch-mcp

Instructions

Implementation Reference

• src/gdb_multiarch_mcp/gdb_interface.py:1094-1112 (handler)

  Implementation of evaluate_expression in GDBSession class.

  def evaluate_expression(self, expression: str) -> dict[str, Any]:
      """
      Evaluate an expression in the current context.
  
      Args:
          expression: C/C++ expression to evaluate
  
      Returns:
          Dict with evaluation result
      """
      result = self.execute_command(f'-data-evaluate-expression "{expression}"')
  
      if result["status"] == "error":
          return result
  
      mi_result = self._extract_mi_result(result) or {}
      value = mi_result.get("value")
  
      return {"status": "success", "expression": expression, "value": value}

• src/gdb_multiarch_mcp/server.py:319-323 (registration)

  Registration of gdb_evaluate_expression tool in the MCP server.

  Tool(
      name="gdb_evaluate_expression",
      description="Evaluate a C/C++ expression.",
      inputSchema=EvaluateExpressionArgs.model_json_schema(),
  ),

• src/gdb_multiarch_mcp/server.py:141-141 (schema)

  Schema definition for evaluate_expression tool arguments.

  class EvaluateExpressionArgs(BaseModel):

• src/gdb_multiarch_mcp/server.py:512-514 (handler)

  Handler logic in server.py that calls evaluate_expression on the session.

  elif name == "gdb_evaluate_expression":
      a = EvaluateExpressionArgs(**arguments)
      result = session.evaluate_expression(a.expression)