小编Raj*_*ena的帖子

首先,在System.java中,它将Runtime调用为loadLibrary.

public static void loadLibrary(String libName) {
    SecurityManager smngr = System.getSecurityManager();
    if (smngr != null) {
        smngr.checkLink(libName);
    }
    Runtime.getRuntime().loadLibrary(libName, VMStack.getCallingClassLoader());
}

第二,它将VMStack.getCallingClassLoader()调用到findLibrary.

void loadLibrary(String libraryName, ClassLoader loader) {
    if (loader != null) {
        String filename = loader.findLibrary(libraryName);
        if (filename == null) {
            throw new UnsatisfiedLinkError("Couldn't load " + libraryName + ": " +
                    "findLibrary returned null");
        }
        //....
    }
}

所以,我认为VMStack.getCallingClassLoader()是最有意义的.但是在其jni文件dalvik_system_VMStack.cpp中,该Dalvik_dalvik_system_VMStack_getCallingClassLoader功能很难学习.最后,dalvik如何找到图书馆？

static void Dalvik_dalvik_system_VMStack_getCallingClassLoader(const u4* args,
    JValue* pResult){
    ClassObject* clazz =
        dvmGetCaller2Class(dvmThreadSelf()->interpSave.curFrame);

    UNUSED_PARAMETER(args);

    if …