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Code Issues Releases Wiki Activity

GP-1963 handle default pointer replacement

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ghidra1 2022-04-27 09:19:46 -04:00
parent 2a34f206e9
commit c38f2022a0
1 changed files with 10 additions and 1 deletions
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11
Ghidra/Features/Base/ghidra_scripts/FixElfExternalOffsetDataRelocationScript.java
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@ -129,7 +129,8 @@ public class FixElfExternalOffsetDataRelocationScript extends GhidraScript {
}
DataType dt = data.getDataType();
boolean isDefaultTypeApplied = Undefined.isUndefined(dt);
boolean isDefaultTypeApplied = address.equals(data.getAddress()) &&
(Undefined.isUndefined(dt) || isDefaultPointer(dt));
int componentOffset = (int) address.subtract(data.getAddress());
if (!isDefaultTypeApplied &&
!canFixupStructure(dt, componentOffset, address.getPointerSize())) {
@ -175,6 +176,14 @@ public class FixElfExternalOffsetDataRelocationScript extends GhidraScript {
return true;
}
private boolean isDefaultPointer(DataType dt) {
if (dt instanceof Pointer) {
DataType refDt = ((Pointer) dt).getDataType();
return refDt == null || refDt == DataType.DEFAULT;
}
return false;
}
private boolean canFixupStructure(DataType dt, int componentOffset, int pointerLength) {
if (!(dt instanceof Structure)) {
return false;