[Bug 38780] AArch64 platforms: register X18 (TEB) must remain reserved for Wine to run 64-bit ARM Windows applications (Distro aarch64 toolchains need '-ffixed-x18' default, loader/libc/userland)

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=38780

--- Comment #25 from Martin Storsjö <martin at martin.st> ---
FWIW, the patches in wine-staging for this issue aren't really needed any
longer. There's been lots of work ongoing in wine (both the PE transition, but
also by switching to the kernel stack for syscalls) that has made the issue go
away more or less; with Wine 6.14 at least, the issue isn't present for me any
longer, and both PE builds and full-ELF builds run fine for my set of test
programs at least. Additionally, Clang (since 11.0) has got some support for
automatically backing up and restoring x18 in the ELF functions that implement
a windows calling convention (i.e. the ones in the boundary interface).

Therefore, I'd suggest to remove the patches from
wine-staging/patches/ntdll-aarch-TEB; things work without them, and they're
probably not helping anything any longer.

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