wine-staging/patches/wow64cpu-Wow64Transition/0002-ntdll-Add-a-stub-implementation-of-Wow64Transition.patch

From 8281eb9d4c2c5d20a336fda58c5bf1e603f05590 Mon Sep 17 00:00:00 2001
From: Zebediah Figura <z.figura12@gmail.com>
Date: Wed, 8 Aug 2018 20:00:15 -0500
Subject: [PATCH] ntdll: Add a stub implementation of Wow64Transition.

---
 dlls/ntdll/loader.c   | 11 ++++++++++-
 dlls/ntdll/ntdll.spec |  1 +
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/dlls/ntdll/loader.c b/dlls/ntdll/loader.c
index 92ae87c6e6d..533bad12103 100644
--- a/dlls/ntdll/loader.c
+++ b/dlls/ntdll/loader.c
@@ -4322,6 +4322,7 @@ NTSTATUS WINAPI NtLoadDriver( const UNICODE_STRING *DriverServiceName )
     return STATUS_NOT_IMPLEMENTED;
 }
 
+void *Wow64Transition;
 
 /***********************************************************************
  *           NtUnloadDriver   (NTDLL.@)
@@ -4380,13 +4381,14 @@ void __wine_process_init(void)
     static const WCHAR ntdllW[] = {'\\','?','?','\\','C',':','\\','w','i','n','d','o','w','s','\\',
                                    's','y','s','t','e','m','3','2','\\',
                                    'n','t','d','l','l','.','d','l','l',0};
+    static const WCHAR wow64cpuW[] = {'w','o','w','6','4','c','p','u','.','d','l','l',0};
     static const WCHAR kernel32W[] = {'\\','?','?','\\','C',':','\\','w','i','n','d','o','w','s','\\',
                                       's','y','s','t','e','m','3','2','\\',
                                       'k','e','r','n','e','l','3','2','.','d','l','l',0};
     void (WINAPI *kernel32_start_process)(LPTHREAD_START_ROUTINE,void*) = NULL;
     RTL_USER_PROCESS_PARAMETERS *params;
     ACTIVATION_CONTEXT_RUN_LEVEL_INFORMATION runlevel;
-    WINE_MODREF *wm;
+    WINE_MODREF *wm, *wow64cpu_wm;
     NTSTATUS status;
     ANSI_STRING func_name;
     UNICODE_STRING nt_name;
@@ -4429,6 +4431,13 @@ void __wine_process_init(void)
         MESSAGE( "wine: could not load kernel32.dll, status %x\n", status );
         exit(1);
     }
+
+    RtlInitUnicodeString( &nt_name, wow64cpuW );
+    if ((status = load_builtin_dll( NULL, &nt_name, 0, 0, &wow64cpu_wm )) == STATUS_SUCCESS)
+        Wow64Transition = wow64cpu_wm->ldr.DllBase;
+    else
+        WARN( "could not load wow64cpu.dll, status %#x\n", status );
+
     RtlInitAnsiString( &func_name, "__wine_start_process" );
     if ((status = LdrGetProcedureAddress( wm->ldr.DllBase, &func_name,
                                           0, (void **)&kernel32_start_process )) != STATUS_SUCCESS)
diff --git a/dlls/ntdll/ntdll.spec b/dlls/ntdll/ntdll.spec
index 05e46bd1b3d..c24889479a4 100644
--- a/dlls/ntdll/ntdll.spec
+++ b/dlls/ntdll/ntdll.spec
@@ -1111,6 +1111,7 @@
 @ stdcall WinSqmIsOptedIn()
 @ stdcall WinSqmSetDWORD(ptr long long)
 @ stdcall WinSqmStartSession(ptr long long)
+@ extern Wow64Transition
 @ stdcall -private ZwAcceptConnectPort(ptr long ptr long ptr ptr) NtAcceptConnectPort
 @ stdcall -private ZwAccessCheck(ptr long long ptr ptr ptr ptr ptr) NtAccessCheck
 @ stdcall -private ZwAccessCheckAndAuditAlarm(ptr long ptr ptr ptr long ptr long ptr ptr ptr) NtAccessCheckAndAuditAlarm
-- 
2.26.2