Add NTOS compatibility driver

drivers/CMakeLists.txt

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+add_subdirectory(ntosdrv)

drivers/ntosdrv/CMakeLists.txt

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+# NTOS compatibility driver
+PROJECT(NTOSDRV)
+
+# Specify include directories
+include_directories(
+    ${EXECTOS_SOURCE_DIR}/sdk/xtdk)
+
+# Specify list of source code files
+list(APPEND NTOSDRV_SOURCE
+    ${NTOSDRV_SOURCE_DIR}/ntosdrv.c)
+
+# Set module definition SPEC file
+set_specfile(ntosdrv.spec ntosdrv.sys)
+
+# Link bootloader executable
+add_executable(ntosdrv ${NTOSDRV_SOURCE} ${CMAKE_CURRENT_BINARY_DIR}/ntosdrv.def)
+
+# Add linker libraries
+target_link_libraries(ntosdrv xtoskrnl)
+
+# Set proper binary name and install target
+set_target_properties(ntosdrv PROPERTIES SUFFIX .sys)
+set_install_target(ntosdrv "exectos/drivers")
+
+# Set loader entrypoint and subsystem
+set_entrypoint(ntosdrv "XtDriverEntry")
+set_linker_map(ntosdrv TRUE)
+set_ordinals(ntosdrv TRUE)
+set_subsystem(ntosdrv native xt_native_driver)

drivers/ntosdrv/ntosdrv.c

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+/**
+ * PROJECT:         ExectOS
+ * COPYRIGHT:       See COPYING.md in the top level directory
+ * FILE:            drivers/ntosdrv/ntosdrv.c
+ * DESCRIPTION:     NTOS compatibility driver
+ * DEVELOPERS:      Rafal Kupiec <belliash@codingworkshop.eu.org>
+ */
+
+#include <xtkmapi.h>
+
+XTAPI
+XTSTATUS
+XtDriverEntry()
+{
+    /* Return success */
+    return STATUS_SUCCESS;
+}

drivers/ntosdrv/ntosdrv.spec

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+# NT compatibilty layer exports
+@ fastcall ExRundownCompleted(ptr) ExCompleteRundownProtection