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I'm trying to debug a transaction on BSC network, the contract is not written by myself and it's not open source, is it possible to debug the transaction at assembly level?

I tried the "Remix Debugger" from "bscscan.com", it doesn't work and shows error like

Access to XMLHttpRequest ... has been blocked by CORS policy: ...

Also tried truffle: truffle debug 0x..tx_id... --network bsc, it shows error:

Error [ERR_UNHANDLED_ERROR]: Unhandled error. ({ code: -32000, message: 'header not found' })

How to do that?

2 Answers 2

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There is none, so I made one: https://github.com/aj3423/edb enter image description here

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Basically you can't do this, you can try with the op codes of the functions which is very very hard.

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  • Debugging through the assembly op codes is exactly what I want, like reverse engineering an executable binary, if it's possible.
    – aj3423
    Apr 7, 2022 at 11:29
  • it is very hard. Go into the address of the smart contract's page BSC exploerer and there you can find it Apr 7, 2022 at 11:33
  • I tried but not work, as mentioned in the post, there is an error in dev-tools says "blocked by CORS policy".
    – aj3423
    Apr 7, 2022 at 11:45

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