怎么通过异常 来定位原因并修改相应的调用来解决

[jackjosnlv]

com/taobao/wireless/security/adapter/common/SPUtility2->readFromSPUnified(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;

在c里面有通过jni调用这个函数，把正确的返回值发我，应该就差不多了

Originally posted by @zhkl0228 in #20 (comment)

大神，这个是通过什么方式来定位到？ unidbg中到log信息？还是其他方式呢？
也碰到一个抛了异常 class=com/alibaba/wireless/security/open/SecException的case
但是不知道怎么定位异常原因。求指教

[zhkl0228]

自己逆向分析得出的

[jackjosnlv]

嗯，感谢大神回复，我在研究研究。

[jackjosnlv]

大神，测试10401指令时触发了异常，困扰了好几天了，毫无头绪 求指教。
测试用例：包含hook的信息
测试代码用例.zip

apk下载地址：

错误log日志如下：
[11:45:49 746] DEBUG [cn.banny.unidbg.AbstractEmulator] (AbstractEmulator:269) - emulate unicorn@0x4000fe61[libmain.so]0xfe61 started sp=unicorn@0xbffff7e4
[11:45:49 746] INFO [cn.banny.unidbg.AbstractEmulator] (AbstractEmulator:270) - emulate unicorn@0x4000fe61[libmain.so]0xfe61 started sp=unicorn@0xbffff7e4
[11:45:49 756] DEBUG [cn.banny.unidbg.linux.android.dvm.DvmClass] (DvmClass:53) - getMethodID name=java/lang/Integer->intValue()I, hash=0x5d9f068b
[11:45:49 758] DEBUG [cn.banny.unidbg.linux.android.dvm.DvmClass] (DvmClass:53) - getMethodID name=java/lang/Boolean->booleanValue()Z, hash=0x31f67dab
[11:45:49 761] DEBUG [cn.banny.unidbg.linux.android.dvm.DvmClass] (DvmClass:53) - getMethodID name=com/alibaba/wireless/security/open/SecException->(Ljava/lang/String;I)V, hash=0x751ae70b
==出现异常了==msg StringObject{value=} ==value= 10505
[11:45:49 761] WARN [cn.banny.unidbg.linux.android.dvm.DalvikVM] (DalvikVM$2:65) - Throw object=unicorn@0x4fb61f4a, dvmObject=DvmObject{value=test[10505]}, class=com/alibaba/wireless/security/open/SecException
[11:45:49 761] DEBUG [cn.banny.unidbg.AbstractEmulator] (AbstractEmulator:298) - emulate unicorn@0x4000fe61[libmain.so]0xfe61 finished sp=unicorn@0xbffff7e4, offset=15ms