Dalivk虚拟机对Dex的加载过程(二)

1：序言

深入理解插件化-Dalvik虚拟机对Dex的加载过程(一)
Java层的dex加载可以先看下这个，这篇文章主要说Native层的加载

2：DexFile

路径：\libcore\dalvik\src\main\java\dalvik\system/DexFile

    public DexFile(String fileName) throws IOException {
        mCookie = openDexFile(fileName, null, 0);
        mFileName = fileName;
        guard.open("close");
        //System.out.println("DEX FILE cookie is " + mCookie);
    }

3：openDexFile

    /*
     * Open a DEX file.  The value returned is a magic VM cookie.  On
     * failure, an IOException is thrown.
     */
    private static int openDexFile(String sourceName, String outputName,
        int flags) throws IOException {
        return openDexFileNative(new File(sourceName).getCanonicalPath(),
                                 (outputName == null) ? null : new File(outputName).getCanonicalPath(),
                                 flags);
    }

openDexFileNative

路径：\dalvik\vm\native\dalvik_system_DexFile.cpp