ntdll: Return STATUS_DEBUGGER_INACTIVE from NtSystemDebugControl() stub.

dlls/ntdll/tests/info.c

@@ -46,6 +46,7 @@ static NTSTATUS (WINAPI * pNtSetInformationDebugObject)(HANDLE,DEBUGOBJECTINFOCL
 static NTSTATUS (WINAPI * pDbgUiConvertStateChangeStructure)(DBGUI_WAIT_STATE_CHANGE*,DEBUG_EVENT*);
 static HANDLE   (WINAPI * pDbgUiGetThreadDebugObject)(void);
 static void     (WINAPI * pDbgUiSetThreadDebugObject)(HANDLE);
+static NTSTATUS (WINAPI * pNtSystemDebugControl)(SYSDBG_COMMAND,PVOID,ULONG,PVOID,ULONG,PULONG);
 
 static BOOL is_wow64;
 static BOOL old_wow64;
@@ -101,6 +102,7 @@ static void InitFunctionPtrs(void)
     NTDLL_GET_PROC(DbgUiConvertStateChangeStructure);
     NTDLL_GET_PROC(DbgUiGetThreadDebugObject);
     NTDLL_GET_PROC(DbgUiSetThreadDebugObject);
+    NTDLL_GET_PROC(NtSystemDebugControl);
 
     if (!IsWow64Process( GetCurrentProcess(), &is_wow64 )) is_wow64 = FALSE;
 
@@ -3735,6 +3737,27 @@ static void test_ThreadIsTerminated(void)
     ok( status == STATUS_INVALID_HANDLE, "got %#lx.\n", status );
 }
 
+static void test_system_debug_control(void)
+{
+    NTSTATUS status;
+    int class;
+
+    for (class = 0; class < SysDbgMaxInfoClass; ++class)
+    {
+        status = pNtSystemDebugControl( class, NULL, 0, NULL, 0, NULL );
+        if (is_wow64)
+        {
+            /* Most of the calls return STATUS_NOT_IMPLEMENTED on wow64. */
+            ok( status == STATUS_DEBUGGER_INACTIVE || status == STATUS_NOT_IMPLEMENTED || status == STATUS_INFO_LENGTH_MISMATCH,
+                    "class %d, got %#lx.\n", class, status );
+        }
+        else
+        {
+            ok( status == STATUS_DEBUGGER_INACTIVE || status == STATUS_ACCESS_DENIED, "class %d, got %#lx.\n", class, status );
+        }
+    }
+}
+
 START_TEST(info)
 {
     char **argv;
@@ -3810,4 +3833,5 @@ START_TEST(info)
 
     test_ThreadEnableAlignmentFaultFixup();
     test_process_instrumentation_callback();
+    test_system_debug_control();
 }

dlls/ntdll/unix/system.c

@@ -3461,7 +3461,8 @@ NTSTATUS WINAPI NtSystemDebugControl( SYSDBG_COMMAND command, void *in_buff, ULO
 {
     FIXME( "(%d, %p, %d, %p, %d, %p), stub\n",
            command, in_buff, (int)in_len, out_buff, (int)out_len, retlen );
-    return STATUS_NOT_IMPLEMENTED;
+
+    return STATUS_DEBUGGER_INACTIVE;
 }
 
 

dlls/wow64/system.c

@@ -755,7 +755,30 @@ NTSTATUS WINAPI wow64_NtSystemDebugControl( UINT *args )
     ULONG out_len = get_ulong( &args );
     ULONG *retlen = get_ptr( &args );
 
-    return NtSystemDebugControl( command, in_buf, in_len, out_buf, out_len, retlen );
+    switch (command)
+    {
+    case SysDbgBreakPoint:
+    case SysDbgEnableKernelDebugger:
+    case SysDbgDisableKernelDebugger:
+    case SysDbgGetAutoKdEnable:
+    case SysDbgSetAutoKdEnable:
+    case SysDbgGetPrintBufferSize:
+    case SysDbgSetPrintBufferSize:
+    case SysDbgGetKdUmExceptionEnable:
+    case SysDbgSetKdUmExceptionEnable:
+    case SysDbgGetTriageDump:
+    case SysDbgGetKdBlockEnable:
+    case SysDbgSetKdBlockEnable:
+    case SysDbgRegisterForUmBreakInfo:
+    case SysDbgGetUmBreakPid:
+    case SysDbgClearUmBreakPid:
+    case SysDbgGetUmAttachPid:
+    case SysDbgClearUmAttachPid:
+        return NtSystemDebugControl( command, in_buf, in_len, out_buf, out_len, retlen );
+
+    default:
+        return STATUS_NOT_IMPLEMENTED;  /* not implemented on Windows either */
+    }
 }
 
 

include/winternl.h

@@ -3603,7 +3603,27 @@ typedef enum _SYSDBG_COMMAND {
   SysDbgReadMsr,
   SysDbgWriteMsr,
   SysDbgReadBusData,
-  SysDbgWriteBusData
+  SysDbgWriteBusData,
+  SysDbgCheckLowMemory,
+  SysDbgEnableKernelDebugger,
+  SysDbgDisableKernelDebugger,
+  SysDbgGetAutoKdEnable,
+  SysDbgSetAutoKdEnable,
+  SysDbgGetPrintBufferSize,
+  SysDbgSetPrintBufferSize,
+  SysDbgGetKdUmExceptionEnable,
+  SysDbgSetKdUmExceptionEnable,
+  SysDbgGetTriageDump,
+  SysDbgGetKdBlockEnable,
+  SysDbgSetKdBlockEnable,
+  SysDbgRegisterForUmBreakInfo,
+  SysDbgGetUmBreakPid,
+  SysDbgClearUmBreakPid,
+  SysDbgGetUmAttachPid,
+  SysDbgClearUmAttachPid,
+  SysDbgGetLiveKernelDump,
+  SysDbgKdPullRemoteFile,
+  SysDbgMaxInfoClass
 } SYSDBG_COMMAND, *PSYSDBG_COMMAND;
 
 typedef struct _CPTABLEINFO