kernel32: Implement Wow64GetThreadContext().

dlls/kernel32/kernel32.spec

@@ -1600,7 +1600,7 @@
 @ stdcall WinExec(str long)
 @ stdcall Wow64EnableWow64FsRedirection(long)
 @ stdcall Wow64DisableWow64FsRedirection(ptr)
-# @ stub Wow64GetThreadContext
+@ stdcall Wow64GetThreadContext(long ptr)
 # @ stub Wow64GetThreadSelectorEntry
 @ stdcall Wow64RevertWow64FsRedirection(ptr)
 # @ stub Wow64SetThreadContext

dlls/kernel32/thread.c

@@ -251,6 +251,24 @@ BOOL WINAPI GetThreadContext( HANDLE handle,     /* [in]  Handle to thread with
 }
 
 
+/***********************************************************************
+ * Wow64GetThreadContext [KERNEL32.@]
+ */
+BOOL WINAPI Wow64GetThreadContext( HANDLE handle, WOW64_CONTEXT *context)
+{
+#ifdef __i386__
+    NTSTATUS status = NtGetContextThread( handle, (CONTEXT *)context );
+#elif defined(__x86_64__)
+    NTSTATUS status = RtlWow64GetThreadContext( handle, context );
+#else
+    NTSTATUS status = STATUS_NOT_IMPLEMENTED;
+    FIXME("not implemented on this platform\n");
+#endif
+    if (status) SetLastError( RtlNtStatusToDosError(status) );
+    return !status;
+}
+
+
 /**********************************************************************
  * SuspendThread [KERNEL32.@]  Suspends a thread.
  *

include/winbase.h

@@ -2706,6 +2706,7 @@ WINBASEAPI VOID        WINAPI WakeConditionVariable(PCONDITION_VARIABLE);
 WINBASEAPI UINT        WINAPI WinExec(LPCSTR,UINT);
 WINBASEAPI BOOL        WINAPI Wow64DisableWow64FsRedirection(PVOID*);
 WINBASEAPI BOOLEAN     WINAPI Wow64EnableWow64FsRedirection(BOOLEAN);
+WINBASEAPI BOOL        WINAPI Wow64GetThreadContext(HANDLE, WOW64_CONTEXT *);
 WINBASEAPI BOOL        WINAPI Wow64RevertWow64FsRedirection(PVOID);
 WINADVAPI  DWORD       WINAPI WriteEncryptedFileRaw(PFE_IMPORT_FUNC,PVOID,PVOID);
 WINBASEAPI BOOL        WINAPI WriteFile(HANDLE,LPCVOID,DWORD,LPDWORD,LPOVERLAPPED);

include/winternl.h

@@ -2836,6 +2836,9 @@ NTSYSAPI void      WINAPI RtlWakeConditionVariable(RTL_CONDITION_VARIABLE *);
 NTSYSAPI NTSTATUS  WINAPI RtlWalkHeap(HANDLE,PVOID);
 NTSYSAPI NTSTATUS  WINAPI RtlWow64EnableFsRedirection(BOOLEAN);
 NTSYSAPI NTSTATUS  WINAPI RtlWow64EnableFsRedirectionEx(ULONG,ULONG*);
+#ifdef __x86_64__
+NTSYSAPI NTSTATUS  WINAPI RtlWow64GetThreadContext(HANDLE, WOW64_CONTEXT *);
+#endif
 NTSYSAPI NTSTATUS  WINAPI RtlWriteRegistryValue(ULONG,PCWSTR,PCWSTR,ULONG,PVOID,ULONG);
 NTSYSAPI NTSTATUS  WINAPI RtlZombifyActivationContext(HANDLE);
 NTSYSAPI NTSTATUS  WINAPI RtlpNtCreateKey(PHANDLE,ACCESS_MASK,const OBJECT_ATTRIBUTES*,ULONG,const UNICODE_STRING*,ULONG,PULONG);