求大佬帮忙看下，android native 静态注册函数调用出现 memory failed

[huojiaan]

//代码如下 package com.tzrd;

import com.github.unidbg.AndroidEmulator; import com.github.unidbg.Module; import com.github.unidbg.Symbol; import com.github.unidbg.linux.android.AndroidARMEmulator; import com.github.unidbg.linux.android.AndroidResolver; import com.github.unidbg.linux.android.dvm.*; import com.github.unidbg.memory.Memory; import com.github.unidbg.memory.MemoryBlock;

import java.io.File; import java.io.IOException;

/**

• @author huoja

• @date 2020/6/8 下午3:43 */ public class TzrdClient extends AbstractJni { private static final String APP_PACKAGE_NAME = "com.maihan.tredian";

  //创建安卓的模拟器 private final AndroidEmulator emulator;

  //创建虚拟机 private final VM vm;

  //创建运行模块 private final Module module;

  //android native 类 private final DvmClass Native;

  //创建对应的报名安卓模拟器 private static AndroidEmulator createARMEmulator() { return new AndroidARMEmulator(APP_PACKAGE_NAME); }

  private TzrdClient() throws Exception { emulator = createARMEmulator();

  Memory memory = emulator.getMemory();
  
  memory.setLibraryResolver(new AndroidResolver(23));
  
  vm = emulator.createDalvikVM(null);
  
  vm.setJni(this);
  
  vm.setVerbose(true);
  
  DalvikModule dm = vm.loadLibrary(new File("src/test/resources/example_binaries/armeabi-v7a/libtre.so"),false);
  
  dm.callJNI_OnLoad(emulator);
  
  module = dm.getModule();
  
  Native = vm.resolveClass("com/maihan/tredian/util");
  
  Symbol __system_property_get = module.findSymbolByName("__system_property_get",true);
  
  MemoryBlock block = memory.malloc(0x20);
  
  Number ret = __system_property_get.call(emulator,"ro.build.version.sdk",block.getPointer())[0];
  
  System.out.println("sdk=" + new String(block.getPointer().getByteArray(0,ret.intValue())) + ", libc=" + memory.findModule("libc.so"));
  
  Symbol Java_com_maihan_tredian_util_TreUtil_sign = module.findSymbolByName("Java_com_maihan_tredian_util_TreUtil_sign");
  
  Number ret2 = Java_com_maihan_tredian_util_TreUtil_sign.call(emulator, "this is a test")[0];
  
  long address = ret2.intValue() & 0xffffffffL;
  
  String sign = (String) vm.getObject(address).getValue();
  
  System.out.println(sign);

  }

  private void destroy() throws IOException { emulator.close(); }

  public static void main(String args[]) { try { TzrdClient tzrdClient = new TzrdClient(); tzrdClient.destroy();

  } catch (Exception e) {
      e.printStackTrace();
  }

  } }

[huojiaan]

libtre.so.zip

[huojiaan]

com.meilishuo_144115188276579027_10.0.0.2220_1000005.apk.zip

[huojiaan]

sdk=23, libc=LinuxModule{base=0x40006000, size=540672, name='libc.so'} java.lang.NullPointerException at com.tzrd.TzrdClient.(TzrdClient.java:73) at com.tzrd.TzrdClient.main(TzrdClient.java:85) [16:01:31 027] WARN [com.github.unidbg.arm.AbstractARMEmulator] (AbstractARMEmulator$1:55) - memory failed: address=0x73696b18, size=4, value=0x0, PC=RX@0x400019a8[libtre.so]0x19a8, LR=unicorn@0x62 [16:01:31 030] WARN [com.github.unidbg.AbstractEmulator] (AbstractEmulator:349) - emulate RX@0x40001981[libtre.so]0x1981 exception sp=unicorn@0xbffff608, msg=Invalid memory read (UC_ERR_READ_UNMAPPED), offset=5ms

[zhkl0228]

jni方法不是这样调用，参考测试用例

[huojiaan]

以下是错误信息 Connected to the target VM, address: '127.0.0.1:51470', transport: 'socket' sdk=23, libc=LinuxModule{base=0x40006000, size=540672, name='libc.so'} Disconnected from the target VM, address: '127.0.0.1:51470', transport: 'socket' java.lang.IllegalArgumentException: find method failed: sign(Ljava/lang/String;)Ljava/lang/String at com.github.unidbg.linux.android.dvm.DvmClass.findNativeFunction(DvmClass.java:213) at com.github.unidbg.linux.android.dvm.DvmObject.callJniMethod(DvmObject.java:39) at com.github.unidbg.linux.android.dvm.DvmClass.callStaticJniMethod(DvmClass.java:222) at com.tzrd.TzrdClient.main(TzrdClient.java:79)

[huojiaan]

[huojiaan]

jni方法不是这样调用，参考测试用例

你好，作者大哥，我之前尝试 用 callStaticJniMethod 调用， 但是发现这个so 是静态注册的， 没有调用jni_onload来注册函数 ，所以调用这个函数 callStaticJniMethod 出现找不到那个我需要调用的函数，所以才尝试用 module.callFunction

[huojiaan]

这个是我自己写的一个apk 调用刚刚那个so 的例子

[zhkl0228]

Native = vm.resolveClass("com/maihan/tredian/util/TreUtil");

[huojiaan]

Native = vm.resolveClass("com/maihan/tredian/util/TreUtil");

你好，噢噢，我搞错了，加漏了，我再试试，谢谢🙏