[Bug 31335] New: __RTDynamicCast (aka dynamic_cast<>) broken on win64

http://bugs.winehq.org/show_bug.cgi?id=31335

Bug #: 31335
           Summary: __RTDynamicCast (aka dynamic_cast<>) broken on win64
           Product: Wine
           Version: 1.5.9
          Platform: x86
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P2
         Component: msvcrt
        AssignedTo: [e-mail]
        ReportedBy: [e-mail]
    Classification: Unclassified

An MFC app compiled with Visual C++ 2010 for 64 bit failed with builtin
msvcr100.dll.  The +msvcrt log shows things like

trace:msvcrt:MSVCRT___RTDynamicCast obj: 0x14a008 unknown: 0 src: 0x403000
{vtable=0x4021e8 name=.?AVCObject@@ ()} dst: 0x403018 {vtable=0x4021e8
name=.?AVCPerson@@ ()} do_throw: 0)
trace:msvcrt:dump_obj_locator 0x402240: sig=00000000 base_offset=00000000
flags=00000000 type=0x403018 {vtable=0x4021e8 name=.?AVCPerson@@ ()}
hierarchy=0x402254
trace:msvcrt:dump_obj_locator   hierarchy: sig=00000000 attr=00000000 len=2
base classes=0x402264
trace:msvcrt:dump_obj_locator     base class 0x402270: num 1 off 0,-1,0 attr
00000040 type 0x403018 {vtable=0x4021e8 name=.?AVCPerson@@ ()}
trace:msvcrt:dump_obj_locator     base class 0x40228c: num 0 off 0,-1,0 attr
00000040 type 0x403000 {vtable=0x4021e8 name=.?AVCObject@@ ()}

(Can't tell what +relay shows because of bug 31330.)

The very first RTTI dynamic_cast I tried seems to reproduce the problem;
it throws the exception
Unhandled exception: C++ exception(object = 0x0022fbc0, type = 0x7fe293732980)
in 64-bit code (0x000000007b84a034).
when it should have succeed.

See attachment for kinda-rtti.cc, kinda-rtti-64.exe, and kinda-rtti.exe,
built with Visual C+ 2010's cl.exe /MD for 64 and 32 bits respectively
(as well as kinda-rtci.cc, kinda-rtci-64.exe, and kinda-rtci.exe, which
demonstrates that the older RTCI seems to work fine on 64 bits,
so older MFC apps might not run into this problem.)

[Bug 31335] __RTDynamicCast (aka dynamic_cast<>) broken on win64

http://bugs.winehq.org/show_bug.cgi?id=31335

--- Comment #1 from Dan Kegel  2012-07-26 22:23:35 CDT ---
Created attachment 41176
  --> http://bugs.winehq.org/attachment.cgi?id=41176
Demo programs, 32 and 64 bit, built with vc 2010 /MD

[Bug 31335] __RTDynamicCast (aka dynamic_cast<>) broken on win64?

http://bugs.winehq.org/show_bug.cgi?id=31335

Dan Kegel  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |download, source, testcase,
                   |                            |win64
           Platform|x86                         |x86-64
            Summary|__RTDynamicCast (aka        |__RTDynamicCast (aka
                   |dynamic_cast<>) broken on   |dynamic_cast<>) broken on
                   |win64                       |win64?

[Bug 31335] __RTDynamicCast (aka dynamic_cast<>) broken on win64?

http://bugs.winehq.org/show_bug.cgi?id=31335

--- Comment #2 from Dan Kegel  2012-07-26 22:28:28 CDT ---
To reproduce the error, I did
  rm -rf ~/.wine
  WINEARCH=win64 wine x
  WINEARCH=win64 sh winetricks -q vcrun2010
  sh winetricks msvcr100=builtin
  wine kinda-rtti-64.exe

[Bug 31335] __RTDynamicCast (aka dynamic_cast<>) broken on win64?

http://bugs.winehq.org/show_bug.cgi?id=31335

--- Comment #3 from Alexandre Julliard  2012-07-27 02:03:42 CDT ---
That's because the data structures are different on 64-bit (they use mostly
RVAs instead of pointers).

[Bug 31335] __RTDynamicCast (aka dynamic_cast<>) broken on win64?

http://bugs.winehq.org/show_bug.cgi?id=31335

Piotr Caban  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
      Fixed by SHA1|                            |33937f039f837e3328359d1c617
                   |                            |b1424ce334b24
             Status|NEW                         |RESOLVED
                 CC|                            |[e-mail]
         Resolution|                            |FIXED

--- Comment #4 from Piotr Caban  2012-12-04 11:18:09 CST ---
Attached test works for me with newest wine.

[Bug 31335] __RTDynamicCast (aka dynamic_cast<>) broken on win64?

http://bugs.winehq.org/show_bug.cgi?id=31335

Alexandre Julliard  changed:

What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |CLOSED

--- Comment #5 from Alexandre Julliard  2012-12-07 13:36:06 CST ---
Closing bugs fixed in 1.5.19.