Question

试图找到客户端应用程序无法在.so库中找到导出函数的原因。我做了

public static <A,B> ArrayList<ArrayList<Pair<A,B>>> stratifiedSplit(
  ArrayList<Pair<A,B>> dataset, 
  int k
) {
  // create a (hash?)map for the strata.
  // In this map, you want to collect rows in separate 
  // lists, depending on their label:
  HashMap<B, ArrayList<Pair<A,B>>> strata = ...;

  // (Check whether your collection library of choice
  //  provides a `groupBy` or a `groupingBy` of some sort.
  // In C#, this might help:
  // https://msdn.microsoft.com/en-us/library/bb534304(v=vs.110).aspx )

  // In your concrete case,
  // your map should look something like this:
  // {  
  //   false -> [
  //      ([5, 6, 7, 8], false),
  //      ([5, 6, 7, 8], false),
  //      ([5, 6, 7, 8], false),
  //      ([5, 6, 7, 8], false),
  //      ([5, 6, 7, 8], false),
  //      ([5, 6, 7, 8], false)
  //   ],
  //   true -> [
  //     ([5, 6, 7, 8], true),
  //     ([1, 2, 3, 4], true)
  //   ]
  // }
  // where `{}`=map, `[]`=list/array, `()`=tuple/pair.

  // Now you generate `k` lists to hold the result.
  // For each stratum, you call the ordinary non-stratified
  // `split` method, and append the `k` pieces returned by
  // this method to the `k` result lists.

  // In the end, you again shuffle each of the `k` result
  // lists (so that the labels aren't sorted in the end)

  // return `k` result lists.
}

得到答案：

nm -D libmylib.so |grep " T " |grep aaa

如果我查看客户端应用程序可见的其他函数，我的开头输出时没有T _Z20aaasPP8CashInfoPiS1_S2_S2_PcS3_符号，而T _Z20就是垃圾邮件。

PP8CashInfoPiS1_S2_S2_PcS3_是什么意思以及为什么我的新功能对客户端应用程序不可见？

导出功能前符号“T _Z20”

0 个答案: