在用substrate hook libdvm中的函数，里面有个dvmDex 结构体，其他的结构体都找到了，就是memmapping结构体没看到在哪个文件里， Dalvik， 内核源码，ndk都翻了下。有没有大神知道的告诉下，多谢。

/*

• Some additional VM data structures that are associated with the DEX file.
  /
  struct DvmDex {
  / pointer to the DexFile we're associated with /
  DexFile pDexFile;

  / clone of pDexFile->pHeader (it's used frequently enough) /
  const DexHeader* pHeader;

  / interned strings; parallel to "stringIds" /
  struct StringObject** pResStrings;

  / resolved classes; parallel to "typeIds" /
  struct ClassObject** pResClasses;

  / resolved methods; parallel to "methodIds" /
  struct Method** pResMethods;

  / resolved instance fields; parallel to "fieldIds" /
  / (this holds both InstField and StaticField) /
  struct Field** pResFields;

  / interface method lookup cache /
  struct AtomicCache* pInterfaceCache;

  / shared memory region with file contents /
  bool isMappedReadOnly;
  MemMapping memMap;

  jobject dex_object;

  / lock ensuring mutual exclusion during updates /
  pthread_mutex_t modLock;
  };

  

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