[Bug 48291] Detroit: Become Human crashes on launch

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=48291

--- Comment #46 from qsniyg <qsniyg at mail.com> ---
(In reply to Zebediah Figura from comment #45)
> You'd need to do IPC without syscalls, which strikes me as pretty much
> impossible.

Unless you're speaking about another part of wine, IPC would only be used if
seccomp cannot be used, which means it shouldn't matter if it uses syscalls or
not. The existing implementation could theoretically even be kept, if
duplication of code doesn't matter.

> Not to mention that relying on IPC for everything that could involve a
> system call would be enormously expensive. The degree to which we do already
> is bad enough.

That's a good point. In _theory_ (part of) the implementation for syscalls
could reside somewhere else in the wine source code, and both wineserver and
the userspace dlls could access it, so it wouldn't change anything
performance-wise if using IPC. This would obviously increase the complexity of
both the userspace dlls and wineserver, but I guess it could be a compromise,
if it could be properly pulled off.

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