ntdll: Route the process startup through the platform-specific thread startup code.

dlls/kernel32/process.c

@@ -47,7 +47,6 @@
 #include "wine/winuser16.h"
 #include "winternl.h"
 #include "kernel_private.h"
-#include "wine/exception.h"
 #include "wine/server.h"
 #include "wine/unicode.h"
 #include "wine/debug.h"
@@ -930,38 +929,29 @@ static void start_wineboot( HANDLE handles[2] )
  *
  * Startup routine of a new process. Runs on the new process stack.
  */
-static void start_process( void *arg )
+static DWORD WINAPI start_process( PEB *peb )
 {
-    __TRY
-    {
-        PEB *peb = NtCurrentTeb()->Peb;
-        IMAGE_NT_HEADERS *nt;
-        LPTHREAD_START_ROUTINE entry;
-
-        nt = RtlImageNtHeader( peb->ImageBaseAddress );
-        entry = (LPTHREAD_START_ROUTINE)((char *)peb->ImageBaseAddress +
-                                         nt->OptionalHeader.AddressOfEntryPoint);
-
-        if (!nt->OptionalHeader.AddressOfEntryPoint)
-        {
-            ERR( "%s doesn't have an entry point, it cannot be executed\n",
-                 debugstr_w(peb->ProcessParameters->ImagePathName.Buffer) );
-            ExitThread( 1 );
-        }
+    IMAGE_NT_HEADERS *nt;
+    LPTHREAD_START_ROUTINE entry;
 
-        if (TRACE_ON(relay))
-            DPRINTF( "%04x:Starting process %s (entryproc=%p)\n", GetCurrentThreadId(),
-                     debugstr_w(peb->ProcessParameters->ImagePathName.Buffer), entry );
+    nt = RtlImageNtHeader( peb->ImageBaseAddress );
+    entry = (LPTHREAD_START_ROUTINE)((char *)peb->ImageBaseAddress +
+                                     nt->OptionalHeader.AddressOfEntryPoint);
 
-        SetLastError( 0 );  /* clear error code */
-        if (peb->BeingDebugged) DbgBreakPoint();
-        ExitThread( entry( peb ) );
-    }
-    __EXCEPT(UnhandledExceptionFilter)
+    if (!nt->OptionalHeader.AddressOfEntryPoint)
     {
-        TerminateThread( GetCurrentThread(), GetExceptionCode() );
+        ERR( "%s doesn't have an entry point, it cannot be executed\n",
+             debugstr_w(peb->ProcessParameters->ImagePathName.Buffer) );
+        ExitThread( 1 );
     }
-    __ENDTRY
+
+    if (TRACE_ON(relay))
+        DPRINTF( "%04x:Starting process %s (entryproc=%p)\n", GetCurrentThreadId(),
+                 debugstr_w(peb->ProcessParameters->ImagePathName.Buffer), entry );
+
+    SetLastError( 0 );  /* clear error code */
+    if (peb->BeingDebugged) DbgBreakPoint();
+    return entry( peb );
 }
 
 
@@ -1125,9 +1115,7 @@ void CDECL __wine_kernel_init(void)
         ExitProcess( error );
     }
 
-    LdrInitializeThunk( 0, 0, 0, 0 );
-    /* switch to the new stack */
-    wine_switch_to_stack( start_process, NULL, NtCurrentTeb()->Tib.StackBase );
+    LdrInitializeThunk( start_process, 0, 0, 0 );
 
  error:
     ExitProcess( GetLastError() );

dlls/ntdll/loader.c

@@ -2444,11 +2444,20 @@ static NTSTATUS attach_process_dlls( void *wm )
 }
 
 
+/***********************************************************************
+ *           start_process
+ */
+static void start_process( void *kernel_start )
+{
+    call_thread_entry_point( kernel_start, NtCurrentTeb()->Peb );
+}
+
 /******************************************************************
  *		LdrInitializeThunk (NTDLL.@)
  *
  */
-void WINAPI LdrInitializeThunk( ULONG unknown1, ULONG unknown2, ULONG unknown3, ULONG unknown4 )
+void WINAPI LdrInitializeThunk( void *kernel_start, ULONG_PTR unknown2,
+                                ULONG_PTR unknown3, ULONG_PTR unknown4 )
 {
     NTSTATUS status;
     WINE_MODREF *wm;
@@ -2489,7 +2498,7 @@ void WINAPI LdrInitializeThunk( ULONG unknown1, ULONG unknown2, ULONG unknown3,
 
     virtual_release_address_space( nt->FileHeader.Characteristics & IMAGE_FILE_LARGE_ADDRESS_AWARE );
     virtual_clear_thread_stack();
-    return;
+    wine_switch_to_stack( start_process, kernel_start, NtCurrentTeb()->Tib.StackBase );
 
 error:
     ERR( "Main exe initialization for %s failed, status %x\n",

include/winternl.h

@@ -1980,7 +1980,7 @@ NTSYSAPI NTSTATUS  WINAPI LdrDisableThreadCalloutsForDll(HMODULE);
 NTSYSAPI NTSTATUS  WINAPI LdrFindEntryForAddress(const void*, PLDR_MODULE*);
 NTSYSAPI NTSTATUS  WINAPI LdrGetDllHandle(LPCWSTR, ULONG, const UNICODE_STRING*, HMODULE*);
 NTSYSAPI NTSTATUS  WINAPI LdrGetProcedureAddress(HMODULE, const ANSI_STRING*, ULONG, void**);
-NTSYSAPI void      WINAPI LdrInitializeThunk(ULONG,ULONG,ULONG,ULONG);
+NTSYSAPI void      WINAPI LdrInitializeThunk(void*,ULONG_PTR,ULONG_PTR,ULONG_PTR);
 NTSYSAPI NTSTATUS  WINAPI LdrLoadDll(LPCWSTR, DWORD, const UNICODE_STRING*, HMODULE*);
 NTSYSAPI NTSTATUS  WINAPI LdrLockLoaderLock(ULONG,ULONG*,ULONG*);
 IMAGE_BASE_RELOCATION * WINAPI LdrProcessRelocationBlock(void*,UINT,USHORT*,INT_PTR);