/**
* Returns the address of the given procedure within the given library. Procedures present within
* the analyzed modules are given precedence over stub functions.
*
* @param library
* @param procedure
* @return the virtual address of the procedure
*/
public AbsoluteAddress getProcAddress(String library, String procedure) {
ExportedSymbol expSymbol = exportedSymbols.get(procedure);
if (expSymbol != null) {
return expSymbol.getAddress();
} else {
return stubLibrary.resolveSymbol(library, procedure);
}
}
/** For all unresolved symbols, install simple stubs. */
public void installStubs() {
if (mainModule instanceof AbstractCOFFModule) {
stubLibrary = new Win32StubLibrary(arch);
} else if (mainModule instanceof ELFModule) {
stubLibrary = new LinuxStubLibrary(arch);
}
Iterator<UnresolvedSymbol> sIter = unresolvedSymbols.iterator();
while (sIter.hasNext()) {
UnresolvedSymbol unresolvedSymbol = sIter.next();
AbsoluteAddress address =
stubLibrary.resolveSymbol(unresolvedSymbol.getFromLibrary(), unresolvedSymbol.getName());
if (address != null) {
// logger.debug("Installing stack height stub for " + unresolvedSymbol.getName());
unresolvedSymbol.resolve(address);
sIter.remove();
}
}
if (!unresolvedSymbols.isEmpty())
logger.warn("Unresolved symbols remaining: " + unresolvedSymbols);
}
private SymbolFinder symbolFinder(AbsoluteAddress addr) {
if (isStub(addr)) return stubLibrary.getSymbolFinder();
ExecutableImage module = getModule(addr);
return (module == null) ? DummySymbolFinder.getInstance() : module.getSymbolFinder();
}