Feature/add memap cstack usage ports (#661)

* Added memap, avstack, and checkstackusage tools to STM32F4xx Makefile and CMake builds to calculate CSTACK depth and RAM usage

* Added memap, cstack, and ram-usage recipes to stm32f10x port Makefile.  Added Cmake build.

* Removed local dlmstp.c module from stm32f10x port, and used the common datalink dlmstp.c module with MS/TP extended frames and zero-config support.

* Added .nm and .su to .gitignore to skip the analysis file residue.

ports/stm32f4xx/Makefile

@@ -13,6 +13,9 @@ LIBRARY_STM32 = ./STM32F4xx_StdPeriph_Driver/src
 LIBRARY_STM32_INCLUDES = ./STM32F4xx_StdPeriph_Driver/inc
 LIBRARY_CMSIS = ./CMSIS
 
+CSTACK_TOOL := $(BACNET_DIR)/tools/avstack/avstack.pl
+MEMAP_TOOL := $(BACNET_DIR)/tools/memap/memap.py
+
 INCLUDES = -I$(PLATFORM_DIR)
 INCLUDES += -I$(LIBRARY_STM32_INCLUDES)
 INCLUDES += -I$(LIBRARY_CMSIS)
@@ -59,17 +62,15 @@ BACNET_SRC = \
 	$(BACNET_CORE)/bacint.c \
 	$(BACNET_CORE)/bacreal.c \
 	$(BACNET_CORE)/bacstr.c \
-	$(BACNET_CORE)/datalink/cobs.c \
-	$(BACNET_CORE)/datalink/crc.c \
-	$(BACNET_CORE)/datalink/dlmstp.c \
-	$(BACNET_CORE)/datalink/mstp.c \
-	$(BACNET_CORE)/datalink/mstptext.c \
+	$(BACNET_CORE)/bactimevalue.c \
+	$(BACNET_CORE)/calendar_entry.c \
+	$(BACNET_CORE)/dailyschedule.c \
 	$(BACNET_CORE)/datetime.c \
 	$(BACNET_CORE)/dcc.c \
-	$(BACNET_CORE)/indtext.c \
+	$(BACNET_CORE)/hostnport.c \
 	$(BACNET_CORE)/iam.c \
 	$(BACNET_CORE)/ihave.c \
-	$(BACNET_CORE)/hostnport.c \
+	$(BACNET_CORE)/indtext.c \
 	$(BACNET_CORE)/lighting.c \
 	$(BACNET_CORE)/memcopy.c \
 	$(BACNET_CORE)/npdu.c \
@@ -78,16 +79,20 @@ BACNET_SRC = \
 	$(BACNET_CORE)/reject.c \
 	$(BACNET_CORE)/rp.c \
 	$(BACNET_CORE)/rpm.c \
+	$(BACNET_CORE)/special_event.c \
 	$(BACNET_CORE)/timestamp.c \
 	$(BACNET_CORE)/weeklyschedule.c \
-	$(BACNET_CORE)/dailyschedule.c \
-	$(BACNET_CORE)/calendar_entry.c \
-	$(BACNET_CORE)/special_event.c \
-	$(BACNET_CORE)/bactimevalue.c \
 	$(BACNET_CORE)/whohas.c \
 	$(BACNET_CORE)/whois.c \
 	$(BACNET_CORE)/wp.c
 
+DATALINK_SRC = \
+	$(BACNET_CORE)/datalink/cobs.c \
+	$(BACNET_CORE)/datalink/crc.c \
+	$(BACNET_CORE)/datalink/dlmstp.c \
+	$(BACNET_CORE)/datalink/mstp.c \
+	$(BACNET_CORE)/datalink/mstptext.c
+
 STM32_SRC = \
 	$(LIBRARY_STM32)/stm32f4xx_adc.c \
 	$(LIBRARY_STM32)/stm32f4xx_can.c \
@@ -118,6 +123,7 @@ STM32_SRC = \
 CSRC = $(PLATFORM_SRC)
 CSRC += $(BASIC_SRC)
 CSRC += $(BACNET_SRC)
+CSRC += $(DATALINK_SRC)
 CSRC += $(STM32_SRC)
 
 ASRC = $(LIBRARY_CMSIS)/gcc_ride7/startup_stm32f4xx.s
@@ -173,6 +179,8 @@ CFLAGS += $(BACNET_FLAGS)
 CFLAGS += $(INCLUDES)
 # enable garbage collection of unused functions and data to shrink binary
 CFLAGS += -ffunction-sections -fdata-sections -fno-strict-aliasing
+# enable stack usage tracking
+CFLAGS += -fstack-usage
 # function calls will not use any special __builtin_xx to allow debug/linking
 CFLAGS += -fno-builtin
 # place uninitialized global variables in the data section of the object file.
@@ -211,6 +219,7 @@ ODFLAGS	= -x --syms
 
 AOBJ = $(ASRC:.s=.o)
 COBJ = $(CSRC:.c=.o)
+CSTACK = $(CSRC:.c=.su)
 
 all: $(TARGET).bin $(TARGET).hex $(TARGET).elf
 	$(OBJDUMP) $(ODFLAGS) $(TARGET).elf > $(TARGET).dmp
@@ -225,9 +234,22 @@ $(TARGET).hex:  $(TARGET).elf
 $(TARGET).elf: $(COBJ) $(AOBJ) Makefile
 	$(CC) $(CFLAGS) $(AOBJ) $(COBJ) $(LDFLAGS) -o $@
 
-: ram-usage
+.PHONY: ram-usage
 ram-usage:
-	$(NM) -t d -S --size-sort $(TARGET).elf 1> $(TARGET).nm
+	@$(NM) -t d -S --size-sort $(TARGET).elf 1> $(TARGET).nm
+	@echo "=ADDRESS= ==SIZE== = ==VARIABLE NAME=="
+	@tail $(TARGET).nm
+	
+.PHONY: cstack
+cstack:
+	@$(CSTACK_TOOL) $(COBJ) 2> /dev/null 1> $(TARGET).su
+	@head -n 25 $(TARGET).su
+
+.PHONY: memap
+memap:
+	# memmap needs Python and PrettyPrint and IntelHex
+	# sudo apt install python3-prettytable python3-intelhex
+	$(MEMAP_TOOL) -t GCC_ARM $(TARGET).map
 
 # GDB using st-util (GDB server for ST Link)
 GDB_PORT = 3333
@@ -282,6 +304,7 @@ install: $(TARGET).bin
 .PHONY: clean
 clean:
 	-rm -rf $(COBJ) $(AOBJ) $(COREOBJ)
+	-rm -rf $(CSTACK) $(CEXPAND)
 	-rm -rf $(TARGET).elf $(TARGET).bin $(TARGET).dmp $(TARGET).map
 	-rm -rf $(TARGET).su $(TARGET).nm
 	-rm -rf *.lst