Makefile for MSPGCC

[gordon 229]

Rickta59 says this might be of interest to others, so here's the Makefile I've been using for MSPGCC.

 

TARGETMCU       ?= msp430g2211

CROSS           := msp430-
CC              := $(CROSS)gcc
CXX             := $(CROSS)g++
OBJDUMP         := $(CROSS)objdump
SIZE            := $(CROSS)size
LD              := $(CC)
MSPDEBUG        := mspdebug
LDFLAGS         := -mmcu=$(TARGETMCU)
CFLAGS          := -Os -Wall -W -Wextra -Werror -g -mmcu=$(TARGETMCU)

ifneq ($(WITH_CXX),)
       CC      := $(CXX)
       LD      := $(CC)
endif

ifneq ($(DEBUG),)
ifeq ($(WITH_CXX),)
       CFLAGS  += -Wstrict-prototypes -Wmissing-prototypes -Wbad-function-cast
       CFLAGS  += -Werror-implicit-function-declaration -Wdeclaration-after-statement
       CFLAGS  += -Wnested-externs -Wold-style-definition
       CFLAGS  += -finline-functions
endif
       CFLAGS  += -Wmissing-declarations -Winit-self -Winline -Wredundant-decls
       CFLAGS  += -Wshadow -Wpointer-arith -Wcast-qual -Wsign-compare -Wformat=2
       CFLAGS  += -Wfloat-equal -Wmissing-field-initializers
       CFLAGS  += -Wmissing-include-dirs -Wswitch-default -Wpacked
       CFLAGS  += -Wpacked -Wlarger-than-65500 -Wunknown-pragmas
       CFLAGS  += -Wmissing-format-attribute -Wmissing-noreturn
       CFLAGS  += -Wstrict-aliasing=2 -Wswitch-enum -Wundef -Wunreachable-code
       CFLAGS  += -Wunsafe-loop-optimizations -Wwrite-strings -Wcast-align
       CFLAGS  += -Wformat-nonliteral -Wformat-security -Waggregate-return

       CFLAGS  += -fno-common -Wp,-D_FORTIFY_SOURCE=2
endif

SRCS            := main.c
PROG            := $(firstword $(SRCS:.c=))
OBJS            := $(SRCS:.c=.o)

all:            $(PROG).elf $(PROG).lst

$(PROG).elf:    $(OBJS)
               $(LD) $(LDFLAGS) -o $(PROG).elf $(OBJS)

%.o:            %.c
               $(CC) $(CFLAGS) -c $<

%.lst:          %.elf
               $(OBJDUMP) -DS $< > $@
               $(SIZE) $<

clean:
               -rm -f $(PROG).elf $(PROG).lst $(OBJS)

install:        $(PROG).elf
               $(MSPDEBUG) -n rf2500 "prog $(PROG).elf"

 

I don't know what half of the CFLAGs mean anymore (some of them most likely don't even have any real meaning in the MSP430 context), I have collected them during the years, the result is considerably anal about code quality, though.

 

roxfan notes,

why not use gcc -S instead of objdump? objdump won't show symbols stripped by linker. http://www.delorie.com/djgpp/v2faq/faq8_20.html

 

Well, I got used to objdump's output, that's about it.

 

It's GNU make, don't even try with others, really. Also don't forget to expand spaces to tabs.

[zborgerd 62]

Thanks for posting this.

[jsolarski 94]

here are the 2 make files I use for mspgcc - for use or comparison

 

OBJECTS = main.o 

CC = msp430-gcc
CFLAGS =-Os -Wall -g -mmcu=msp430x2011

all : $(OBJECTS)
$(CC) $(CFLAGS) $(OBJECTS) -o main.elf

%.o : %.c 
$(CC) $(CFLAGS) -c $<


clean:
rm -fr $(OBJECTS) main.elf

erase:
mspdebug rf2500 "erase"

upload:
mspdebug rf2500 "prog main.elf"

size:
msp430-size main.elf

 

CC=msp430-gcc
CFLAGS=-Os -Wall -g -mmcu=msp430g2231

OBJS=main.c


all: $(OBJS)
$(CC) $(CFLAGS) -o main.elf $(OBJS)

%.o: %.c
$(CC) $(CFLAGS) -c $<

clean:
rm -fr main.elf $(OBJS)

 

 

very simple and no extra flags

 

as for all your flags, time to get out the gcc manual lol

[gordon 229]

Following up on viewtopic.php?f=10&t=1228#p8163, I made some tweaks to the Makefile. It now has simple heuristics to detect whether you are running Windows (I'm not much of a Windows person, so it is kind of a shot in the dark, please test), and if yes, it uses MSP430Flasher for installing.

 

It is also possible to have only one central instance of this "master" Makefile, with per-project Makefiles only referencing this one, possibly overriding some settings.

 

Per-project Makefile:

TARGETMCU       := msp430g2211

include         ../Makefile

(I really don't recommend symlinking the master Makefile in project directories, you'll surely shoot yourself in the foot sooner or later.)

 

Master Makefile:

TARGETMCU       ?= msp430g2231
SRCS            ?= main.c

CROSS           := msp430-
CC              := $(CROSS)gcc
CXX             := $(CROSS)g++
OBJDUMP         := $(CROSS)objdump
OBJCOPY         := $(CROSS)objcopy
SIZE            := $(CROSS)size
LD              := $(CC)
MSPDEBUG        := mspdebug
MSP430FLASHER   := C:\\bin\\MSP430Flasher
LDFLAGS         := -mmcu=$(TARGETMCU)
CFLAGS          := -Os -Wall -W -Wextra -Werror -std=gnu99 -g -mmcu=$(TARGETMCU)

ifneq ($(WITH_CXX),)
       CC      := $(CXX)
       LD      := $(CC)
endif

ifeq ($(WITH_CXX),)
       CFLAGS  += -Wstrict-prototypes -Wmissing-prototypes -Wbad-function-cast
       CFLAGS  += -Werror-implicit-function-declaration -Wdeclaration-after-statement
       CFLAGS  += -Wnested-externs -Wold-style-definition
endif
       CFLAGS  += -Wmissing-declarations -Winit-self -Winline -Wredundant-decls
       CFLAGS  += -Wshadow -Wpointer-arith -Wcast-qual -Wsign-compare -Wformat=2
       CFLAGS  += -Wfloat-equal -Wmissing-field-initializers
       CFLAGS  += -Wmissing-include-dirs -Wswitch-default -Wpacked
       CFLAGS  += -Wpacked -Wlarger-than-65500 -Wunknown-pragmas
       CFLAGS  += -Wmissing-format-attribute -Wmissing-noreturn
       CFLAGS  += -Wstrict-aliasing=2 -Wswitch-enum -Wundef -Wunreachable-code
       CFLAGS  += -Wunsafe-loop-optimizations -Wwrite-strings -Wcast-align
       CFLAGS  += -Wformat-nonliteral -Wformat-security -Waggregate-return
       CFLAGS  += -fno-common -Wp,-D_FORTIFY_SOURCE=2
       CFLAGS  += -finline-functions

CXXFLAGS        := $(CFLAGS)

PROG            := $(firstword $(SRCS:.c=))
OBJS            := $(SRCS:.c=.o)

all:            $(PROG).elf $(PROG).hex $(PROG).lst

%.elf:          $(OBJS)
               $(LD) $(LDFLAGS) -o $(PROG).elf $(OBJS)
               $(SIZE) $<

%.o:            %.c
               $(CC) $(CFLAGS) -c $<

%.lst:          %.elf
               $(OBJDUMP) -DS $< > $@

%.hex:          %.elf
               $(OBJCOPY) -O ihex $< $@

clean:
               -rm -f $(PROG).elf $(PROG).lst $(PROG).hex $(OBJS)
install:        $(PROG).elf $(PROG).hex
ifeq ($(OS),Windows_NT)
               $(MSP430FLASHER) -n $(TARGETMCU) -e ERASE_MAIN -w $<
else
               $(MSPDEBUG) -n rf2500 "prog $<"
endif

erase:
               $(MSPDEBUG) -n rf2500 erase

.PHONY:         all clean install erase
.PRECIOUS:      %.o

 

I don't know what options does MSP430Flasher take, I just sort of guessed.

[gordon 229]

SLAU101 describes (in section A2) another format, TI-txt, which is supported by this MSP-GANG430 programmer. The format is also understood by SRecord (useful addition to the toolchest in it's own right).

 

I wonder, Rickta59, could you possibly try if MSP430Flasher understands this format? To convert from the Intel hex emitted by objcopy, you would go like "srec_cat -O $output.ti -TITXT $input.hex -I". Just for kicks, if you get to it .