[Bug 45218] Fallout 4 Script Extender fails to allocate trampoline buffers
wine-bugs at winehq.org
wine-bugs at winehq.org
Thu Aug 23 13:31:59 CDT 2018
https://bugs.winehq.org/show_bug.cgi?id=45218
bugzilla at biechl.net changed:
What |Removed |Added
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CC| |bugzilla at biechl.net
--- Comment #11 from bugzilla at biechl.net ---
Thing is, in windows the injector does work. Memory allocation seems to be
handled differently in windows, so Wine does something different here. That the
application does not work is a result of that.
I understand that inverting the memory allocation may not be a proper overall
solution, but maybe there is a better approach that, in the end, is also more
closer to "the way Windows is supposed to work"? :)
Here is what one of the developers of the said binary says about the problem,
and why it can't be worked around, maybe that helps:
> Since branch instructions have a range that is smaller than the address space
> on 64-bit operating systems, we need to allocate a buffer that is adjacent to
> the game's code, called a "branch trampoline". Without that, the game's code
> and our DLL's code may be located too far away in memory to branch directly to
> each other.
> Either WINE's loader is not supporting ASLR and loads executables at a very low
> address all of the time, or the functions for querying the state of memory are
> not implemented correctly.
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