support aliyun sdk on TencentOS tiny

sample: examples\aliyun_iotkit_csdk_mqtt
project: board\TencentOS_tiny_EVB_MX_Plus\KEIL\aliyun_iotkit_csdk_mqtt

components/connectivity/iotkit-embedded-3.0.1/3rdparty/tools/build-rules/_rules-coverage.mk

@@ -0,0 +1,26 @@
+.PHONY: coverage lcov test
+
+ifneq (,$(COVERAGE_LIST))
+COVERAGE_PROGS  := \(
+COVERAGE_PROGS  += $(COVERAGE_LIST)
+COVERAGE_PROGS  += \)
+COVERAGE_CMD    := $(RULE_DIR)/scripts/exe_coverage_progs.sh
+endif
+
+ifeq (,$(COVERAGE_CMD))
+coverage lcov test:
+	@echo "COVERAGE_CMD not defined, skip"
+else
+coverage lcov test:
+#
+#	SKIP --coverage existence in $(CFLAGS) checking for now
+#
+	$(Q)$(MAKE) --no-print-directory WITH_LCOV=1
+
+	$(Q)OUTPUT_DIR=$(OUTPUT_DIR) bash <($(SED) '2iPROGS=$(COVERAGE_PROGS)' $(COVERAGE_CMD)) || true
+
+	$(Q)CFLAGS=$(CFLAGS) \
+	    $(foreach V,$(INFO_ENV_VARS),$(V)="$($(V))") \
+	    bash $(RULE_DIR)/scripts/gen_lcov_report.sh
+
+endif