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Can't hook art::gc::Heap::PreZygoteFork on Android 11 with ARM #109

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kotori2 opened this issue Nov 5, 2020 · 4 comments
Closed

Can't hook art::gc::Heap::PreZygoteFork on Android 11 with ARM #109

kotori2 opened this issue Nov 5, 2020 · 4 comments

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@kotori2
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kotori2 commented Nov 5, 2020

In my own fork of EdXposed, there is a hook for art::gc::Heap::PreZygoteFork. It works. fine on ARM64 but failed on ARM.

Stack trace:

telegram-cloud-photo-size-5-6134389153815702320-y
telegram-cloud-photo-size-5-6134389153815702323-y

Disassembled function (on Pixel 4 XL, RP1A.201005.004, /apex/com.android.art/lib/libart.so):
telegram-cloud-photo-size-5-6134389153815702322-y

It seems SP register was messed up here.
Also the hook fails at System UI and the system crashes, so I don't have time to attach a debugger.
Any advice on how to debug it here?
@jmpews
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jmpews commented Nov 6, 2020

hi, i'll test it today.

@kotori2 kotori2 mentioned this issue Nov 6, 2020
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@jmpews
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jmpews commented Nov 7, 2020

@kotori2 Any contact? wechat?

@kotori2
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kotori2 commented Nov 7, 2020

Email sent to the address on your profile page

@kotori2
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kotori2 commented Nov 8, 2020

fixed b3b3f81

@kotori2 kotori2 closed this as completed Nov 8, 2020
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@jmpews @kotori2