-fstack-protector -fPIC -Werror
vpp_TAG_LDFLAGS = -g -O2 -DFORTIFY_SOURCE=2 -march=$(MARCH) \
-fstack-protector -fPIC -Werror
+
+vpp_gcov_TAG_CFLAGS = -g -O0 -DCLIB_DEBUG -march=$(MARCH) \
+ -fPIC -Werror -fprofile-arcs -ftest-coverage
+vpp_gcov_TAG_LDFLAGS = -g -O0 -DCLIB_DEBUG -march=$(MARCH) \
+ -fPIC -Werror -coverage