[Bug 59850] Exit unwind is broken

[WineHQ Bugzilla]

http://bugs.winehq.org/show_bug.cgi?id=59850

--- Comment #8 from Bernhard Übelacker <[e-mail]> ---
With the regression commit reverted I did a side by side debugging.

The behaviour starts to differ in RtlUnwindEx.
To be more precise we hit the break in following line,
because teb_frame is equal to end_frame, both contain NULL.


808                 if ((ULONG64)teb_frame == (ULONG64)end_frame &&
(ULONG64)end_frame < new_context.Rsp) break;


To get old behaviour back following modification would be sufficient:


dlls/ntdll/signal_x86_64.c
         else  /* hack: call builtin handlers registered in the tib list */
         {
+            if (!teb_frame)
+                teb_frame = (void *)~0ul;
+
             while (is_valid_frame( (ULONG_PTR)teb_frame ) &&
                    (ULONG64)teb_frame < new_context.Rsp &&

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