sca: add coverity as a SCA variant

Signed-off-by: Anas Nashif <anas.nashif@intel.com>

Author: nashif

cmake/sca/coverity/sca.cmake

@@ -0,0 +1,23 @@
+
+find_program(COVERITY_BUILD NAMES cov-build REQUIRED)
+find_program(COVERITY_CONFIGURE NAMES cov-configure REQUIRED)
+message(STATUS "Found SCA: Coverity (${COVERITY_BUILD})")
+
+
+zephyr_get(COVERITY_OUTPUT_DIR)
+
+if(NOT COVERITY_OUTPUT_DIR)
+  set(output_dir ${CMAKE_BINARY_DIR}/sca/coverity)
+else()
+  set(output_dir ${COVERITY_OUTPUT_DIR})
+endif()
+
+file(MAKE_DIRECTORY ${output_dir})
+
+set(output_arg --dir=${output_dir})
+
+
+# ${COV_CONF} --comptype gcc --compiler gcc --template
+
+set(CMAKE_C_COMPILER_LAUNCHER ${COVERITY_BUILD} ${output_arg} CACHE INTERNAL "")
+set(CMAKE_CXX_COMPILER_LAUNCHER ${COVERITY_BUILD} ${output_arg} CACHE INTERNAL "")