ghidra/Ghidra/Features/Base/ghidra_scripts/FixArrayStructReferencesScr...

62 lines
2.0 KiB
Java

/* ###
* IP: GHIDRA
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
//
// When an array of structures is created at a location, and the
// array type contains a pointer type, Ghidra will lay down valid
// references as long as the pointer is valid (points to something
// in memory). However, at the first sign of invalidity, the
// CodeManager bails and stops laying down references.
//
// This script, when run at the location of the array of structures,
// will update each individual structure element, iterating through
// the whole array until the end.
//
//@category Data Types
import ghidra.app.script.GhidraScript;
import ghidra.program.database.ProgramDB;
import ghidra.program.database.code.CodeManager;
import ghidra.program.model.listing.Data;
public class FixArrayStructReferencesScript extends GhidraScript {
@Override
protected void run() throws Exception {
Data data = getDataAt(currentAddress);
if (data == null) {
printerr("no data at " + currentAddress);
return;
}
if (!data.isArray()) {
printerr("data at " + currentAddress + " is not an array");
return;
}
CodeManager codeManager = ((ProgramDB) currentProgram).getCodeManager();
int numComponents = data.getNumComponents();
monitor.setMessage("updating data references in array");
monitor.initialize(numComponents);
for (int ii = 0; ii < numComponents; ++ii) {
if (monitor.isCancelled()) {
printerr("cancelled");
return;
}
monitor.incrementProgress(1);
Data component = data.getComponent(ii);
codeManager.updateDataReferences(component);
}
}
}