Build: Cmake build system

 -- Cmake based build system
 -- Only armclang supported currently

Change-Id: I162357439bb1c871cba3a1c614822ef0b7a73e89
Signed-off-by: Abhishek Pandit <abhishek.pandit@arm.com>
diff --git a/secure_fw/ns_callable/CMakeLists.inc b/secure_fw/ns_callable/CMakeLists.inc
new file mode 100644
index 0000000..25b6493
--- /dev/null
+++ b/secure_fw/ns_callable/CMakeLists.inc
@@ -0,0 +1,37 @@
+#-------------------------------------------------------------------------------
+# Copyright (c) 2017, Arm Limited. All rights reserved.
+#
+# SPDX-License-Identifier: BSD-3-Clause
+#
+#-------------------------------------------------------------------------------
+
+#Definitions to compile the "NS Callable" module.
+#This file assumes it will be included from a project specific cmakefile, and
+#will not create a library or executable.
+#Inputs:
+#	TFM_ROOT_DIR - directory where secure FW source is located.
+#
+#Outputs:
+#	Will modify include directories to make the source compile.
+#	ALL_SRC_C: C source files to be compiled will be added to this list.
+#                  This shall be added to the add_executable or add_library command.
+#	Include directories will be modified by using the include_directories() commands as needed.
+
+#Get the current directory where this file is located.
+set(SS_NS_CALLABLE_DIR ${CMAKE_CURRENT_LIST_DIR})
+if(NOT DEFINED TFM_ROOT_DIR)
+	message(FATAL_ERROR "Please set TFM_ROOT_DIR before including this file.")
+endif()
+
+set (SS_NS_CALLABLE_C_SRC "${CMAKE_CURRENT_LIST_DIR}/tfm_sst_veneers.c")
+
+#Append all our source files to global lists.
+list(APPEND ALL_SRC_C ${SS_NS_CALLABLE_C_SRC})
+unset(SS_NS_CALLABLE_C_SRC)
+
+#Setting include directories
+embedded_include_directories(PATH ${TFM_ROOT_DIR} ABSOLUTE)
+embedded_include_directories(PATH ${TFM_ROOT_DIR}/interface/include ABSOLUTE)
+embedded_include_directories(PATH ${TFM_ROOT_DIR}/secure_fw/spm ABSOLUTE)
+
+