Makefile Dependancies

cciarleg · April 15, 2011, 2:51pm

Hi,

So I’m having a silly issue-when I run my makefile I am getting "no rule to make target buildfiles/bin/serial.o as needed by /buildfiles/bin/abv’ (may have wording a little off) but the usual problem that the file seems no to be able to find my serial.cpp.

Makefile is fairly simple:

SRC_DIR = exospheres/src
INC_DIR = exospheres/include
BIN_OBJ_DIR = buildfiles/bin

CXX = qcc -V

CPPFLAGS += -Wno-deprecated
CXXFLAGS += -Wno-deprecated

INCLUDES += -I$(INC_DIR)
-I.

SENSORS = $(SRC_DIR)/serial.cpp

SOURCES_cpp = $(SENSORS)
$(SRC_DIR)/main.cpp

OBJECTS_COMMON = $(SENSORS:$(SRC_DIR)/%.cpp=$(BIN_OBJ_DIR)/%.o)

$(BIN_OBJ_DIR)/abv: $(OBJECTS_COMMON)
$(BIN_OBJ_DIR)/main.o
$(CXX) -o $@ $(CXXFLAGS) $^

I guess it has to do with the OBJECTS_COMMON line?

Thanks in advance.

Connie C.

Tim · April 15, 2011, 3:25pm

Connie,

I’m no expert on Make but I don’t see where you tell Make that you want to compile your .cpp files.

You define a SOURCES_cpp but you never use it.

So the $@ on your compilation line:

$(CXX) -o $@ $(CXXFLAGS) $^

has no way to equate that your .o’s depend on your .cpp files.

Tim

cciarleg · April 15, 2011, 8:50pm

okay-thanks. I think I got the dependencies with

SRC_DIR = exospheres/src
INC_DIR = exospheres/include
BIN_OBJ_DIR = buildfiles/bin

CXX = qcc -Vgcc_ntox86_cpp

CPPFLAGS += -Wno-deprecated
CXXFLAGS += -Wno-deprecated

INCLUDES += -I$(INC_DIR)
-I.

SENSORS = $(SRC_DIR)/serial.cpp

SOURCES_cpp = $(SENSORS)
$(SRC_DIR)/main.cpp

OBJECTS_COMMON = $(SENSORS:$(SRC_DIR)/%.cpp=$(BIN_OBJ_DIR)/%.o)

$(BIN_OBJ_DIR)/abv: $(OBJECTS_COMMON)
$(BIN_OBJ_DIR)/main.o
$(CXX) -o $@ $(CXXFLAGS) $^

$(BIN_OBJ_DIR)/serial.o: $(SRC_DIR)/serial.cpp $(INC_DIR)/serial.h

$(BIN_OBJ_DIR)/main.o: $(SRC_DIR)/main.cpp $(INC_DIR)/serial.h

Now Im getting a no such file or directory for serial.o though it looks like to me the path is there.

cciarleg · April 15, 2011, 9:32pm

Sweet! Got everything working! Thanks for the help!

SRC_DIR = exospheres/src
INC_DIR = exospheres/include
BIN_OBJ_DIR = buildfiles/bin

CXX = qcc -Vgcc_ntox86_cpp

CPPFLAGS += -Wno-deprecated
CXXFLAGS += -Wno-deprecated

INCLUDES += -I$(INC_DIR)
-I.

SENSORS = $(SRC_DIR)/serial.cpp

SOURCES_cpp = $(SENSORS)
$(SRC_DIR)/main.cpp

OBJECTS_COMMON = $(SOURCES_cpp:$(SRC_DIR)/%.cpp=$(BIN_OBJ_DIR)/%.o)

$(BIN_OBJ_DIR)/abv: $(SRC_DIR)/serial.o
$(SRC_DIR)/main.o
$(CXX) -o $@ $(CXXFLAGS) $^

$(BIN_OBJ_DIR)/serial.o: $(SRC_DIR)/serial.cpp $(INC_DIR)/serial.h

$(BIN_OBJ_DIR)/main.o: $(SRC_DIR)/main.cpp $(INC_DIR)/serial.h

cciarleg · April 17, 2011, 1:44am

okay-still having issues with this. I need to compile now with a file containing an extern variable, defined in its corresponding .cpp file.

I’ve also tried to clean up the makefile but I am still getting that “buildfiles/bin/serial.o file does not exist error”

SRC_DIR = exospheres/src
INC_DIR = exospheres/include
BIN_OBJ_DIR = buildfiles/bin

CXX = QCC

CPPFLAGS += -Wno-deprecated
CXXFLAGS += -Wno-deprecated

INCLUDES += -I$(INC_DIR)
-I.

SENSORS = $(SRC_DIR)/serial.cpp

CONTROL = $(SRC_DIR)/ABVCtrl.cpp
$(SRC_DIR)/ABVstate.cpp
$(SRC_DIR)/ABV.cpp
$(SRC_DIR)/global.cpp
$(SRC_DIR)/ABVControl.cpp

SOURCES_cpp = $(SENSORS)
$(CONTROL)
$(SRC_DIR)/main.cpp

OBJECTS_CONTROL = $(SOURCES_cpp:$(SRC_DIR)/%.cpp=$(BIN_OBJ_DIR)/%.o)

$(BIN_OBJ_DIR)/abv: $(OBJECTS_CONTROL)
$(CXX) -o $@ $(CXXFLAGS) $^

$(OBJECTS_CONTROL): $(INC_DIR)

.PHONY : clean
clean :
-rm $(BIN_OBJ_DIR)/abv $(OBJECTS_CONTROL)

I have my .h file dependencies in there. To my understanding, the compiler should automatically associate the .cpp file with the same name. And My syntax for creation of the ,o files seems to be correct from examples I’ve looked at. What syntax am I missing?

Tim · April 18, 2011, 5:25pm

Connie,

I’m not sure what’s wrong now or what you are trying to fix.

Is the Makefile compiling your executable or not?
Is it the dependencies that aren’t working?
Is it just the error message you are trying to fix?

Hard to know where you are with this.

Tim

cciarleg · April 23, 2011, 8:17pm

Hi Tim,

Sorry-the development process is going so fast with this I can be very unclear.

My current issue is that:

My makefile builds the .o files in the correct directory
My makefile also builds .s files in the directory containing the makefile-I assume this is not supposed to happen

At this point the makefile fails and gives the error

serial.o: file format not recognized.

The main executable never gets built completely-which is what I want.

Makefile looks like:
SRC_DIR = exospheres/src
INC_DIR = exospheres/include
BIN_OBJ_DIR = buildfiles/bin

$(BIN_OBJ_DIR)/abv: $(BIN_OBJ_DIR)/serial.o $(BIN_OBJ_DIR)/ABVstate.o $(BIN_OBJ_DIR)/ABV.o $(BIN_OBJ_DIR)/global.o
$(BIN_OBJ_DIR)/ABVCtrl.o $(BIN_OBJ_DIR)/ABVControl.o $(BIN_OBJ_DIR)/actuator.o $(BIN_OBJ_DIR)/thruster.o $(BIN_OBJ_DIR)/main.o
$(CXX) -o $@ $(CXXFLAGS) $^

$(BIN_OBJ_DIR)/serial.o: $(SRC_DIR)/serial.cpp $(INC_DIR)/serial.h
QCC -o $@ $(CXXFLAGS) $^

$(BIN_OBJ_DIR)/ABVstate.o: $(SRC_DIR)/ABVstate.cpp $(INC_DIR)/ABVstate.h
QCC -o $@ $(CXXFLAGS) $^

$(BIN_OBJ_DIR)/ABV.o: $(SRC_DIR)/ABV.cpp $(INC_DIR)/ABV.h $(INC_DIR)/serial.h $(INC_DIR)/ABVstate.h $(INC_DIR)/actuator.h
QCC -o $@ $(CXXFLAGS) $^

$(BIN_OBJ_DIR)/global.o: $(INC_DIR)/ABV.h $(INC_DIR)/ABVstate.h $(SRC_DIR)/global.cpp $(INC_DIR)/global.h
QCC -o $@ $(CXXFLAGS) $^

$(BIN_OBJ_DIR)/ABVCtrl.o: $(INC_DIR)/ABV.h $(INC_DIR)/ABVstate.h $(INC_DIR)/global.h $(INC_DIR)/ABVControl.h $(INC_DIR)/ABVCtrl.h $(SRC_DIR)/ABVCtrl.cpp
QCC -o $@ $(CXXFLAGS) $^

$(BIN_OBJ_DIR)/ABVControl.o: $(SRC_DIR)/ABVControl.cpp $(INC_DIR)/ABVControl.h $(INC_DIR)/ABV.h $(INC_DIR)/ABVstate.h $(INC_DIR)/global.h $(INC_DIR)/ABVstate.h
QCC -o $@ $(CXXFLAGS) $^

$(BIN_OBJ_DIR)/actuator.o: $(SRC_DIR)/actuator.cpp $(INC_DIR)/actuator.h $(INC_DIR)/ABVControl.h $(INC_DIR)/global.h $(INC_DIR)/serial.h $(INC_DIR)/ABV.h $(INC_DIR)/ABVstate.h
QCC -o $@ $(CXXFLAGS) $^

$(BIN_OBJ_DIR)/thruster.o: $(SRC_DIR)/thruster.cpp $(INC_DIR)/thruster.h $(INC_DIR)/global.h $(INC_DIR)/serial.h $(INC_DIR)/ABV.h $(INC_DIR)/ABVstate.h
QCC -o $@ $(CXXFLAGS) $^

$(BIN_OBJ_DIR)/main.o: $(SRC_DIR)/main.cpp $(INC_DIR)/serial.h $(INC_DIR)/global.h $(INC_DIR)/ABVCtrl.h $(INC_DIR)/ABV.h $(INC_DIR)/ABVstate.h
QCC -o $@ $(CXXFLAGS) $^

Tim · April 25, 2011, 5:28pm

Connie,

This line is your problem (obviously)

$(BIN_OBJ_DIR)/abv: $(BIN_OBJ_DIR)/serial.o $(BIN_OBJ_DIR)/ABVstate.o $(BIN_OBJ_DIR)/ABV.o $(BIN_OBJ_DIR)/global.o
$(BIN_OBJ_DIR)/ABVCtrl.o $(BIN_OBJ_DIR)/ABVControl.o $(BIN_OBJ_DIR)/actuator.o $(BIN_OBJ_DIR)/thruster.o $(BIN_OBJ_DIR)/main.o
$(CXX) -o $@ $(CXXFLAGS) $^

As a non-make expert it doesn’t jump right out at me what’s wrong. I’d say it’s the compilation line and how the $@ and $^ are getting interpreted (one or the other of those symbols is wrong or not needed).

Here’s a very simply Makefile which works. It will give you an idea of what yours should look like:

OBJECTS = passivesock.o passiveTCP.o connectTCP.o  connectsock.o 

CC = qcc -V3.3.5,gcc_ntox86_cpp
CXX = qcc -V3.3.5,gcc_ntox86_cpp
LD = qcc -V3.3.5,gcc_ntox86_cpp


all: $(OBJECTS) TCPdaytimed $(LINK)


TCPdaytimed: TCPdaytimed.c $(OBJECTS)
	$(CC) -c TCPdaytimed.c $(OBJECTS) 

LINK: TCPdaytimed.o $(OBJECTS)
	$(CC) -o TCPDaytimed TCPdaytimed.o $(OBJECTS) -lsocket

clean:
	rm -fv *.o $(PROJLIB) TCPdaytimed

It’s the LINK directive that you are having problems with in your Makefile. Somehow that line of $(CXX) -o $@ $(CXXFLAGS) $^ isn’t evaluating correctly (it appears to be trying to compile Serial.o). I’d try simplifying your line to what’s in the LINK directive and see if that solves the problem.

Incidentally I have no idea what .s files are.

Tim

P.S. This is not how I do my makefiles but should be enough to get you working.