Dex文件DexClassData 结构求助

《Android 软件安全与逆向分析》这本书在讲解DexClassData时很简略，只说了u4是LEB128编码的东西。 DexClassData中的几个指针成员指什么地方也没提。

[C++] 纯文本查看 复制代码

typedef struct DexClassData {
    DexClassDataHeader header;
    DexField*          staticFields;
    DexField*          instanceFields;
    DexMethod*         directMethods;
    DexMethod*         virtualMethods;
} DexClassData;

网上查的资料显示:
encoded_field[static_fields_size]..... 我就依葫芦画瓢下了下面代码:

[C++] 纯文本查看 复制代码

DexClassData *cdata;
      cdata=(DexClassData *)&f.pBuffer[f.ClassDefs[i].classDataOff];
      u=f.GetClassMethodSize(cdata);
      for (int y = 0; y < u; y++)
      {
        DexMethod *df; 
        u4 uid;
        df=f.GetClassMethod(cdata);
        uid=readU4Leb128(&df[y].methodIdx);

        u2 classId;
        u2 protoId;
        u4 nameIdx;
        DexTypeList *list;

        classId=f.Method_ids[uid].classIdx;
        protoId=f.Method_ids[uid].protoIdx;
        nameIdx=f.Method_ids[uid].nameIdx;
.....................................................................

寻址代码:

[C++] 纯文本查看 复制代码

DexField *CDexFile::GetClassStaticField(DexClassData *classdef)
{
  char *pbuf;
  pbuf=(char *)classdef;
  return (DexField *)&pbuf[sizeof(DexClassDataHeader)];//越过DexClassDataHeader
}
DexField *CDexFile::GetClassField(DexClassData *classdef)
{
  char *pbuf;
  pbuf=(char *)GetClassStaticField(classdef);
  return (DexField *)&pbuf[GetClassStaticFieldSize(classdef)*sizeof(DexField)];
}
DexMethod *CDexFile::GetClassMethod(DexClassData *classdef)
{
  char *pbuf;
  pbuf=(char *)GetClassField(classdef);
  return (DexMethod * )&pbuf[GetClassFieldSize(classdef)*sizeof(DexField)];
}
DexMethod *CDexFile::GetClassVirtualMethod(DexClassData *classdef)
{
  char *pbuf;
  pbuf=(char *)GetClassMethod(classdef);
  return (DexMethod *)&pbuf[GetClassMethodSize(classdef)*sizeof(DexMethod)];
}