Zephyr: Track memory allocations

examples/zephyr/Makefile

@@ -3,7 +3,7 @@ ZEPHYR_PROJECT?=~/zephyrproject
 all: coap-client
 
 coap-client: client-src/src/main.c client-src/*
-	LIBCOAP_DIR=`pwd`/../.. ;\
+	@LIBCOAP_DIR=`pwd`/../.. ;\
 	(. $(ZEPHYR_PROJECT)/.venv/bin/activate ;\
 	cd $(ZEPHYR_PROJECT)/zephyr ;\
 	west build -p always -b native_sim \
@@ -12,5 +12,9 @@ coap-client: client-src/src/main.c client-src/*
 		-DEXTRA_ZEPHYR_MODULES=$${LIBCOAP_DIR} \
 		-DEXTRA_CONF_FILE=$${LIBCOAP_DIR}/zephyr/libcoap-mbedtls.conf \
 		--fresh ;\
-	deactivate) ;\
-	cp -f $(ZEPHYR_PROJECT)/zephyr/build/zephyr/zephyr.exe coap-client
+	deactivate)
+	@cp -f $(ZEPHYR_PROJECT)/zephyr/build/zephyr/zephyr.exe coap-client
+
+clean:
+	@rm -rf $(ZEPHYR_PROJECT)/zephyr/build
+	@rm -f coap-client

examples/zephyr/client-src/src/main.c

@@ -208,5 +208,5 @@ fail:
 	coap_free_context(coap_context);
 
 	coap_cleanup();
-	return 0;
+	exit(0);
 }

src/coap_mbedtls.c

@@ -84,6 +84,8 @@
 #define mbedtls_realloc(a,b) realloc(a,b)
 #define mbedtls_strdup(a) strdup(a)
 #define mbedtls_strndup(a,b) strndup(a,b)
+#undef mbedtls_free
+#define mbedtls_free(a) free(a)
 
 #ifndef MBEDTLS_KEY_EXCHANGE__SOME__PSK_ENABLED
 /* definition changed in later mbedtls code versions */

zephyr/CMakeLists.txt

@@ -106,6 +106,7 @@ if(CONFIG_LIBCOAP)
 
   add_subdirectory(.. build)
   target_compile_definitions(coap-3 PUBLIC WITH_ZEPHYR)
+  target_compile_definitions(coap-3 PUBLIC COAP_MEMORY_TYPE_TRACK=1)
   target_link_libraries(coap-3 PUBLIC zephyr_interface)
   set_property(GLOBAL APPEND PROPERTY ZEPHYR_INTERFACE_LIBS coap-3)