Ejemplo n.º 1
0
 /**
  * Get the statement at a specific label. If there is no statement stored, attempts to disassemble
  * the instruction at the label's virtual address. If the address is outside of the file area,
  * logs an error and returns a Halt statement by default.
  *
  * @param label The label for which to get the statement
  * @return The statement object at label.
  */
 public final RTLStatement getStatement(RTLLabel label) {
   if (!statementMap.containsKey(label)) {
     AbsoluteAddress address = label.getAddress();
     Instruction instr = getInstruction(address);
     // If we did not get an instruction, add an artificial Halt for recovery
     if (instr == null) {
       RTLHalt halt = new RTLHalt();
       halt.setLabel(label);
       putStatement(halt);
       logger.error("ERROR: Replacing unknown instruction with HALT.");
       if (Options.debug.getValue())
         throw new DisassemblyException("Disassembly failed at " + address);
     } else {
       try {
         StatementSequence seq = arch.getRTLEquivalent(address, instr);
         for (RTLStatement s : seq) {
           putStatement(s);
         }
       } catch (Exception e) {
         logger.error("Error during translation of instruction to IL");
         e.printStackTrace();
         RTLStatement skip = new RTLSkip();
         skip.setLabel(label);
         skip.setNextLabel(new RTLLabel(new AbsoluteAddress(address.getValue() + 1)));
         putStatement(skip);
       }
       assert statementMap.containsKey(label) : "Disassembly did not produce label: " + label;
     }
   }
   return statementMap.get(label);
 }
Ejemplo n.º 2
0
 /**
  * Get the string representation of the specified assembly instruction assuming it is located at
  * the given address.
  *
  * @param addr a virtual address
  * @param instr an assembly instruction
  * @return a string representation of the assembly code at the given address
  */
 public String getInstructionString(AbsoluteAddress addr, Instruction instr) {
   if (instr == null) return "NON_EXISTENT";
   return instr.toString(addr.getValue(), symbolFinder(addr));
 }
Ejemplo n.º 3
0
 public boolean isStub(AbsoluteAddress a) {
   return a.getValue() >= StubProvider.STUB_BASE;
 }