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Code Issues Releases Wiki Activity

GP-5995 Corrected default label for circular pointer references

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ghidra1 2025-09-17 14:52:14 -04:00
parent a1851c5911
commit dba7f462a2
2 changed files with 53 additions and 3 deletions
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50
Ghidra/Features/Base/src/test.slow/java/ghidra/program/model/symbol/SymbolUtilities2Test.java
View file

@ -130,6 +130,56 @@ public class SymbolUtilities2Test extends AbstractGhidraHeadedIntegrationTest {
assertEquals("s__CODE_0200", symbol.getName()); assertEquals("s__CODE_0200", symbol.getName());
} }
@Test
public void testDynamicPTRLabel() throws Exception {
// 50 -> 100(pointer) -> 200(pointer) -> 300(pointer) -> 400(byte)XYZ
listing.createData(addr(0x100), PointerDataType.dataType);
listing.createData(addr(0x200), PointerDataType.dataType);
listing.createData(addr(0x300), PointerDataType.dataType);
listing.createData(addr(0x400), ByteDataType.dataType);
symbolTable.createLabel(addr(0x400), "XYZ", SourceType.USER_DEFINED);
refMgr.addMemoryReference(addr(0x50), addr(0x100), RefType.DATA, SourceType.USER_DEFINED,
0);
refMgr.addMemoryReference(addr(0x100), addr(0x200), RefType.DATA, SourceType.USER_DEFINED,
0);
refMgr.addMemoryReference(addr(0x200), addr(0x300), RefType.DATA, SourceType.USER_DEFINED,
0);
refMgr.addMemoryReference(addr(0x300), addr(0x400), RefType.DATA, SourceType.USER_DEFINED,
0);
Symbol symbol = symbolTable.getPrimarySymbol(addr(0x100));
assertEquals("PTR_PTR_CODE_0100", symbol.getName());
symbol = symbolTable.getPrimarySymbol(addr(0x200));
assertEquals("PTR_PTR_CODE_0200", symbol.getName());
symbol = symbolTable.getPrimarySymbol(addr(0x300));
assertEquals("PTR_XYZ_CODE_0300", symbol.getName());
}
@Test
public void testDynamicPTRLOOP1Label() throws Exception {
// 100(pointer) -> 100(pointer)
listing.createData(addr(0x100), PointerDataType.dataType);
refMgr.addMemoryReference(addr(0x100), addr(0x100), RefType.READ, SourceType.USER_DEFINED,
0);
Symbol symbol = symbolTable.getPrimarySymbol(addr(0x100));
assertEquals("PTR_LOOP_CODE_0100", symbol.getName());
}
@Test
public void testDynamicPTRLOOP2Label() throws Exception {
// 100(pointer) -> 200(pointer) -> 100(pointer)
listing.createData(addr(0x100), PointerDataType.dataType);
listing.createData(addr(0x200), PointerDataType.dataType);
refMgr.addMemoryReference(addr(0x100), addr(0x200), RefType.READ, SourceType.USER_DEFINED,
0);
refMgr.addMemoryReference(addr(0x200), addr(0x100), RefType.READ, SourceType.USER_DEFINED,
0);
Symbol symbol = symbolTable.getPrimarySymbol(addr(0x100));
assertEquals("PTR_LOOP_CODE_0100", symbol.getName());
symbol = symbolTable.getPrimarySymbol(addr(0x200));
assertEquals("PTR_LOOP_CODE_0200", symbol.getName());
}
@Test @Test
public void testParseDynamicName() { public void testParseDynamicName() {
assertEquals(addr(0x100), assertEquals(addr(0x100),

2
Ghidra/Framework/SoftwareModeling/src/main/java/ghidra/program/model/data/PointerDataType.java
View file

@ -259,7 +259,7 @@ public class PointerDataType extends BuiltIn implements Pointer {
while (ref != null && ref.isMemoryReference()) { while (ref != null && ref.isMemoryReference()) {
Address toAddr = ref.getToAddress(); Address toAddr = ref.getToAddress();
if (!refAddrs.add(toAddr)) { if (!refAddrs.add(toAddr)) {
break; return PointerReferenceClassification.LOOP;
} }
if (++depth > 2) { if (++depth > 2) {
return PointerReferenceClassification.DEEP; return PointerReferenceClassification.DEEP;