[Bug 45573] League of Legends 8.12+ fails to start a game ( anticheat engine, hooking of syscall return instructions)

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=45573

Andrew Wesie <awesie at gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |awesie at gmail.com

--- Comment #2 from Andrew Wesie <awesie at gmail.com> ---
(In reply to Fabian Maurer from comment #1)
> Do you know what exactly the game does with the return instruction? How does
> it want the hooked function to look like?

It is flexible. The current __syscall_Nt* exports are good enough, the problem
is that __wine_syscall_dispatcher does not use the ret instruction in the
__syscall_Nt* exports.

I'll attach a test I wrote to demonstrate the issue along with my patches from
the other thread that make the test pass.

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