[PATCH] x11drv: handle missing thread data in X11DRV_get_ic

10 Oct 2018

      Hi,
This patch fixes a crash in x11drv when loading theIME.

This happens in Final Fantasy XI when using Ashita or Windower
3rd party applications.

Here is the crash record:

Unhandled exception: page fault on write access to 0x00000014 in 32-bit
code (0x7d85a94b).
Register dump:
 CS:0023 SS:002b DS:002b ES:002b FS:0063 GS:006b
 EIP:7d85a94b ESP:0836fd10 EBP:0836fd38 EFLAGS:00010212(  R- --  I   -A- - )
 EAX:00000000 EBX:0015abe8 ECX:00010050 EDX:00000000
 ESI:00000000 EDI:7d894000
Stack dump:
0x0836fd10:  001e60c8 00000158 0836fdb8 00010050
0x0836fd20:  00000000 7d894000 7d85a90b 7d894000
0x0836fd30:  001e60cc 001e60c8 0836fd58 7d86560b
0x0836fd40:  00010050 00000035 7d827a09 7d8655fa
0x0836fd50:  7d894000 001e60cc 0836fd98 7d83c0ef
0x0836fd60:  00010050 7d894000 0836fd98 7d83bfb0
Backtrace:
=>0 0x7d85a94b X11DRV_get_ic+0x4b(hwnd=0x10050)
[/mnt/work/Repositories/wine/dlls/winex11.drv/window.c:2040] in winex11
(0x0836fd38)
  1 0x7d86560b X11DRV_ForceXIMReset+0x1a(hwnd=0x10050)
[/mnt/work/Repositories/wine/dlls/winex11.drv/xim.c:255] in winex11
(0x0836fd58)
  2 0x7d83c0ef NotifyIME+0x17e(hIMC=<couldn't compute location>,
dwAction=<couldn't compute location>, dwIndex=<couldn't compute
location>, dwValue=<couldn't compute location>)
[/mnt/work/Repositories/wine/dlls/winex11.drv/ime.c:764] in winex11
(0x0836fd98)
  3 0x7dc80793 ImmNotifyIME+0x62(hIMC=<couldn't compute location>,
dwAction=<couldn't compute location>, dwIndex=<couldn't compute
location>, dwValue=<couldn't compute location>)
[/mnt/work/Repositories/wine/dlls/imm32/imm.c:2189] in imm32 (0x0836fde8)
0x7d85a94b X11DRV_get_ic+0x4b
[/mnt/work/Repositories/wine/dlls/winex11.drv/window.c:2040] in winex11:
movl     %ecx,0x14(%eax)
2040            x11drv_thread_data()->last_xic_hwnd = hwnd;

Farmboy0

Alex Henrie

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