[Bug 45703] Microsoft Office 365 applications crash on startup ( Microsoft AppV ISV virtual filesystem technology requires several native and core API to be hot-patchable )

[wine-bugs at winehq.org]

https://bugs.winehq.org/show_bug.cgi?id=45703

--- Comment #28 from Anastasius Focht <focht at gmx.net> ---
Hello Louis,

--- quote ---
I don`t know how this could be anything related so I`ll first go double-check
and report back before fishing up red herrings
--- quote ---

well, there is no doubt about it. Basically Alexandre's inlining rework of
debug helpers has an effect on how GCC organizes (optimizes) code at Win32
function entry.
__wine_dbg_get_channel_flags() causes data references go through GOT. A load of
GOT register is now emitted directly at API entries where TRACE() is the first
code, which is a no-no for many hook engines.
Previously, the GOT register load was emitted _after_ stack re-align/preserving
locally clobbered registers/setup of stack frame pointer for local vars (those
sequences are hotpatchable).

Kinda bad situation as this essentially prevents the closure of a couple of old
tickets. There are also new "collector" tickets which list multiple broken
apps/games with same regression sha1. All of them require additional sets
hotpatchable API entries now (across and within tickets, partially
overlapping). I'm not very inclined on working on this with top priority.

Regards

-- 
Do not reply to this email, post in Bugzilla using the
above URL to reply.
You are receiving this mail because:
You are watching all bug changes.