YAHFA支持Android O吗？

[c1024]

我在Android O上测试，hook不成功，如果hook jni直接崩溃。测试设备Nexus 6p。同样的代码在Nexus 5 6.0上可以hook成功。

[svengong]

刚试了一下8.0，的确不成功，手机是谷歌PIXEL XL，现象就是hook不成功，调用原函数；
09-20 19:18:21.433 16994-16994/? I/YAHFA-Native: init to SDK 26
09-20 19:18:21.433 16994-16994/? D/YAHFA: target method param count is 4
09-20 19:18:21.434 16994-16994/? I/YAHFA-Native: Start findAndBackupAndHook for non-static method tac(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;
09-20 19:18:21.434 16994-16994/? W/YAHFA-Native: not enough capacity. Allocating...
09-20 19:18:21.434 16994-16994/? I/YAHFA-Native: Allocating done
09-20 19:18:21.434 16994-16994/? I/YAHFA-Native: origin method is at 0x70098c91a0, hook method is at 0x70098c9108, backup method is at 0x70098c9138
09-20 19:18:21.434 16994-16994/? I/YAHFA-Native: hook and backup done
09-20 19:18:21.589 16994-17039/? D/OpenGLRenderer: HWUI GL Pipeline
09-20 19:18:21.629 16994-17039/? I/Adreno: QUALCOMM build : 7142022, Ib5823dd10c
Build Date : 06/23/17
OpenGL ES Shader Compiler Version: EV031.18.00.00
Local Branch : O11A
Remote Branch :
Remote Branch :
Reconstruct Branch :
09-20 19:18:21.633 16994-17039/? I/Adreno: PFP: 0x005ff087, ME: 0x005ff063
09-20 19:18:21.636 16994-17039/? I/OpenGLRenderer: Initialized EGL, version 1.4
09-20 19:18:21.636 16994-17039/? D/OpenGLRenderer: Swap behavior 2
09-20 19:18:23.618 16994-16994/lab.galaxy.yahfa.demoApp E/origin: call Log.e()
09-20 19:18:23.619 16994-16994/lab.galaxy.yahfa.demoApp W/origin: foo startsWith f is true
09-20 19:18:23.620 16994-16994/lab.galaxy.yahfa.demoApp W/origin: virtual tac a,b,c,d, got dcba
09-20 19:18:23.620 16994-16994/lab.galaxy.yahfa.demoApp W/origin: static tac a,b,c,d, got dcba
09-20 19:18:23.623 16994-16994/lab.galaxy.yahfa.demoApp W/origin: JNI method return string: hello from JNI

[rk700]

在avd上实验，部分函数只修改entrypoint后hook不生效，具体原因不明，

[rk700]

感谢 @svengong 及其同事的发现和建议，通过将方法设为native属性可避免其被解释执行

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