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Merge remote-tracking branch 'origin/GT-2898_ryanmkurtz_tls_callbacks'

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This commit is contained in:
Ryan Kurtz 2019-06-06 13:08:08 -04:00
parent e41e5be82c b9bd035cd2
commit 4876b10a5a
1 changed files with 30 additions and 2 deletions
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32
Ghidra/Features/Base/src/main/java/ghidra/app/util/bin/format/pe/TLSDataDirectory.java
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@ -20,11 +20,14 @@ import java.io.IOException;
import ghidra.app.util.bin.format.FactoryBundledWithBinaryReader;
import ghidra.app.util.importer.MessageLog;
import ghidra.program.model.address.Address;
import ghidra.program.model.data.DataType;
import ghidra.program.model.data.DataTypeConflictException;
import ghidra.program.model.address.AddressSpace;
import ghidra.program.model.data.*;
import ghidra.program.model.listing.Program;
import ghidra.program.model.mem.DumbMemBufferImpl;
import ghidra.program.model.symbol.SourceType;
import ghidra.program.model.util.CodeUnitInsertionException;
import ghidra.util.exception.DuplicateNameException;
import ghidra.util.exception.InvalidInputException;
import ghidra.util.task.TaskMonitor;
/**
@ -76,6 +79,31 @@ public class TLSDataDirectory extends DataDirectory {
}
createDirectoryBookmark(program, addr);
PeUtils.createData(program, addr, tls.toDataType(), log);
// Markup TLS callback functions
if (tls.getAddressOfCallBacks() != 0) {
AddressSpace space = program.getImageBase().getAddressSpace();
DataType pointerDataType = PointerDataType.dataType.clone(program.getDataTypeManager());
try {
for (int i = 0; i < 20; i++) { // cap # of TLS callbacks as a precaution (1 is the norm)
Address nextCallbackPtrAddr = space.getAddress(
tls.getAddressOfCallBacks() + i * pointerDataType.getLength());
Address nextCallbackAddr = PointerDataType.getAddressValue(
new DumbMemBufferImpl(program.getMemory(), nextCallbackPtrAddr),
pointerDataType.getLength(), space);
if (nextCallbackAddr.getOffset() == 0) {
break;
}
PeUtils.createData(program, nextCallbackPtrAddr, pointerDataType, log);
program.getSymbolTable().createLabel(nextCallbackAddr, "tls_callback_" + i,
SourceType.IMPORTED);
program.getSymbolTable().addExternalEntryPoint(nextCallbackAddr);
}
}
catch (InvalidInputException e) {
log.appendMsg("TLS", "Failed to markup TLS callback functions: " + e.getMessage());
}
}
}
@Override