A user defined p-code op for assisting the recovery of jump tables. More...
#include <userop.hh>
Public Member Functions | |
| JumpAssistOp (Architecture *g) | |
| Constructor. More... | |
| virtual void | restoreXml (const Element *el) |
| Restore the detailed description from an XML stream. More... | |
 Public Member Functions inherited from UserPcodeOp | |
| virtual string | getOperatorName (const PcodeOp *op) const |
| Get the symbol representing this operation in decompiled code. More... | |
Private Attributes | |
| int4 | index2case |
| Id of p-code script performing index2case (== -1 if no script and index==case) | |
| int4 | index2addr |
| Id of p-code script performing index2addr (must be present) | |
| int4 | defaultaddr |
| Id of p-code script performing calculation of default address (must be present) | |
| int4 | calcsize |
| Id of p-code script that calculates number of indices (== -1 if no script) | |
Additional Inherited Members | |
| Protected Attributes inherited from UserPcodeOp | |
| string | name |
| Low-level name of p-code operator. | |
| int4 | useropindex |
| Index passed in the CALLOTHER op. | |
| Architecture * | glb |
| Architecture owning the user defined op. | |
Detailed Description
A user defined p-code op for assisting the recovery of jump tables.
An instance of this class refers to p-code script(s) that describe how to parse the jump table from the load image. Possible scripts include:
- (if present) index2case describes how to get case values from an index 0..size-1
- index2addr describes how to get address values from the same index range
- defaultaddr describes how to calculate the switch's default address
- (if present) calcsize recovers the number of indices in the table
This class stores injection ids. The scripts themselves are managed by PcodeInjectLibrary.
Constructor & Destructor Documentation
◆ JumpAssistOp()
| JumpAssistOp::JumpAssistOp | ( | Architecture * | g | ) |
Constructor.
- Parameters
-
g is the Architecture owning this set of jump assist scripts
References calcsize, defaultaddr, index2addr, and index2case.
Member Function Documentation
◆ restoreXml()
|
virtual |
Restore the detailed description from an XML stream.
The details of how a user defined operation behaves can be dynamically configured from an XML tag.
- Parameters
-
el is the root XML element describing the op
Implements UserPcodeOp.
References calcsize, defaultaddr, InjectPayload::EXECUTABLEPCODE_TYPE, Element::getAttributeValue(), UserOpManage::getOp(), UserPcodeOp::glb, index2addr, index2case, UserPcodeOp::name, Architecture::pcodeinjectlib, PcodeInjectLibrary::restoreXmlInject(), UserPcodeOp::useropindex, and Architecture::userops.
Referenced by UserOpManage::parseJumpAssist().
The documentation for this class was generated from the following files:
- userop.hh
- userop.cc
