/**
* Load a dynamic library
*
* @param libname the name of the library to load.
* @return 0 on failure, 1 on success
*/
public static synchronized int load(String libname) {
VM_DynamicLibrary dl = dynamicLibraries.get(libname);
if (dl != null) return 1; // success: already loaded
if (VM_FileSystem.stat(libname, VM_FileSystem.STAT_EXISTS) == 1) {
dynamicLibraries.put(libname, new VM_DynamicLibrary(libname));
return 1;
} else {
return 0; // fail; file does not exist
}
}
/**
* Resolve a symbol to an address in a currently loaded dynamic library.
*
* @return the address of the symbol of Address.zero() if it cannot be resolved
*/
public static synchronized Address resolveSymbol(String symbol) {
for (VM_DynamicLibrary lib : dynamicLibraries.values()) {
Address symbolAddress = lib.getSymbol(symbol);
if (!symbolAddress.isZero()) {
return symbolAddress;
}
}
return Address.zero();
}
