- Add an initial breakpoint for usermode process startup, this makes usermode gdb debugging working. Spotted and tested by Yury Sidorov.

svn path=/trunk/; revision=34127

reactos/dll/ntdll/ldr/startup.c

@@ -484,6 +484,10 @@ LdrpInit(PCONTEXT Context,
            ZwTerminateProcess(NtCurrentProcess(), STATUS_INVALID_IMAGE_FORMAT);
          }
      }
+
+   /* Break into debugger */
+   if (Peb->BeingDebugged) DbgBreakPoint();
+
    /* attach the thread */
    RtlEnterCriticalSection(NtCurrentPeb()->LoaderLock);
    LdrpAttachThread();