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Comments (11)

yulingtianxia avatar yulingtianxia commented on July 16, 2024

@jiangleligejiang 麻烦能提供一个能复现的 Demo 工程么?我这里直接用上面的代码没有复现。或者提供下更详细的信息,比如 Xcode 版本,运行环境(模拟器 or 真机机型)

顺便问下 dbpd 的值是 0x0 么?

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jiangleligejiang avatar jiangleligejiang commented on July 16, 2024

感谢回复~
demo工程可以在这里下载,运行LibffiViewController内容即可

目前尝试模拟器和真机都会有问题,显示的debug信息如下:
image

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yulingtianxia avatar yulingtianxia commented on July 16, 2024

@jiangleligejiang 可以复现了,不过不是在这一行,我看看

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yulingtianxia avatar yulingtianxia commented on July 16, 2024

@jiangleligejiang 这是 iOS 13 的问题,把 target iOS 版本调整到 12.4 及以下就可以正常工作。
image

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jiangleligejiang avatar jiangleligejiang commented on July 16, 2024

@jiangleligejiang 这是 iOS 13 的问题,把 target iOS 版本调整到 12.4 及以下就可以正常工作。
image

我这边尝试用12.4版本的模拟器也存在这个问题

image

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yulingtianxia avatar yulingtianxia commented on July 16, 2024

@jiangleligejiang 我这边用 Xcode 11.5 ,target iOS 12.4 ,模拟器是 iPhone 8 Plus,运行 OK。麻烦能帮忙试下必现的场景么?可能还有其他没考虑到的环境信息。

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jiangleligejiang avatar jiangleligejiang commented on July 16, 2024

@jiangleligejiang 我这边用 Xcode 11.5 ,target iOS 12.4 ,模拟器是 iPhone 8 Plus,运行 OK。麻烦能帮忙试下必现的场景么?可能还有其他没考虑到的环境信息。

找到原因,是我这边的环境问题😂,之前设置了Address Sanitizer导致的,关闭了就正常了,辛苦作者了🙏

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yulingtianxia avatar yulingtianxia commented on July 16, 2024

没事,你也帮我发现了新的问题,感谢反馈

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jiangleligejiang avatar jiangleligejiang commented on July 16, 2024

新问题指的是,hook global类型的block这里修改invoke会导致野指针问题?之前遇到过一次这里导致的crash,所以才加的Address Sanitizer,不过后来又没复现过了。
image

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yulingtianxia avatar yulingtianxia commented on July 16, 2024

这个问题是 target 在 iOS 13 上必现的,lldb memory write 是可以的,但是代码里直接赋值就不行。估计是只读,还没细看。

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yulingtianxia avatar yulingtianxia commented on July 16, 2024

@jiangleligejiang 1.5.8 版本已经修复 Address Sanitizer 的问题了。

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