[Bug 32991] New: ARM port of "WabbitEMU" crashes due to unimplemented function KERNEL32.dll.RtlUnwindEx (no ntdll forward on arch=arm)

[wine-bugs at winehq.org]

http://bugs.winehq.org/show_bug.cgi?id=32991

             Bug #: 32991
           Summary: ARM port of "WabbitEMU" crashes due to unimplemented
                    function KERNEL32.dll.RtlUnwindEx (no ntdll forward on
                    arch=arm)
           Product: Wine
           Version: 1.5.24
          Platform: arm
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: kernel32
        AssignedTo: wine-bugs at winehq.org
        ReportedBy: focht at gmx.net
    Classification: Unclassified


Hello folks,

the ARM port of "WabbitEMU", a Texas Instruments graphing calculator emulator
and dev tools crashes after clicking "Browse for a ROM image" radio button in
image selection dialog.

Download: http://forum.xda-developers.com/showpost.php?p=37928562

(main thread: http://forum.xda-developers.com/showthread.php?t=2092348)

--- snip ---
$ WINEDEBUG=+tid,+seh,+relay wine ./Wabbitemu.exe
...
0024:Call user32.GetWindowTextA(00010096,40a0ebf0,00000104) ret=00439fa5
0024:Call window proc 0x40bc5f30
(hwnd=0x10096,msg=WM_GETTEXT,wp=00000104,lp=40a0ebf0)
0024:Ret  window proc 0x40bc5f30
(hwnd=0x10096,msg=WM_GETTEXT,wp=00000104,lp=40a0ebf0) retval=00000000
0024:Ret  user32.GetWindowTextA() retval=00000000 ret=00439fa5
0024:Call KERNEL32.GetLastError() ret=004141cf
0024:Ret  KERNEL32.GetLastError() retval=00000000 ret=004141cf
0024:trace:seh:raise_exception  info[0]=0047be54
0024:trace:seh:raise_exception  info[1]=0047cc8e
wine: Call from 0x7bc9a630 to unimplemented function KERNEL32.dll.RtlUnwindEx,
aborting
0024:trace:seh:call_stack_handlers calling handler at 0x7bcb8d88 code=80000100
flags=1
0024:Call KERNEL32.UnhandledExceptionFilter(40a0e81c) ret=7bcb8df0 
--- snip ---

The app is importing all win32 API by name so it's the real thing :-)

+module,+imports

--- snip ---
...
0009:trace:module:load_dll looking for L"KERNEL32.dll" in
L"Z:\\home\\linaro\\wine-apps\\wabbitemu;.;C:\\windows\\system32;C:\\windows\\system;C:\\windows;C:\\windows\\system32;C:\\windows;C:\\windows\\system32\\wbem"
0009:trace:module:load_dll Found L"C:\\windows\\system32\\KERNEL32.dll" for
L"KERNEL32.dll" at 0x7b820000, count=19
0009:warn:module:import_dll No implementation for KERNEL32.dll.RtlUnwindEx
imported from L"Z:\\home\\linaro\\wine-apps\\wabbitemu\\Wabbitemu.exe", setting
to 0x41820000
0009:trace:imports:import_dll --- RtlUnwindEx KERNEL32.dll.1209 = 0x41820000
0009:trace:imports:import_dll --- GetCommandLineA KERNEL32.dll.481 = 0x7b846be0
0009:trace:imports:import_dll --- RtlPcToFileHeader KERNEL32.dll.1205 =
0x7bc69188
0009:warn:module:import_dll No implementation for
KERNEL32.dll.RtlLookupFunctionEntry imported from
L"Z:\\home\\linaro\\wine-apps\\wabbitemu\\Wabbitemu.exe", setting to 0x41820024
0009:trace:imports:import_dll --- RtlLookupFunctionEntry KERNEL32.dll.1203 =
0x41820024
0009:trace:imports:import_dll --- GetModuleFileNameW KERNEL32.dll.634 =
0x7b86b864
...
--- snip ---

It also needs KERNEL32.dll.RtlLookupFunctionEntry later.
Wine forwards both to ntdll but only on arch=x86_64.

It seems Windows RT exposes both API.
Interestingly only the MSDN page for KERNEL32.dll.RtlLookupFunctionEntry gives
a hint about this:
http://msdn.microsoft.com/en-us/library/windows/desktop/ms680597%28v=vs.85%29.aspx
("ARM Definition").

Regards

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