View source for CSC231 Makefile for linking ASM and C Files

--[[User:Thiebaut|D. Thiebaut]] 01:23, 27 October 2010 (UTC)<br />
Revised --[[User:Thiebaut|D. Thiebaut]] 10:10, 22 October 2012 (EDT)
----


=References=

* http://www.gnu.org/software/make/manual/make.html
* http://mrbook.org/tutorials/make/

=Makefile for Simple ASM Program=
<br />
* Create a file called '''Makefile''' in the directory where you have your assembly programs
* Copy the code below in the file.
* Replace '''16Fibs''' by the name of your current assembly project.
* This Makefile assumes that 16Fibs (or whatever your program name is) requires to be linked with [[CSC231_Printing_%26_Inputting_Decimal_Numbers_in_Assembly| 231Lib.asm]].
* '''Important Note:''' The lines that are indented in the Makefile '''must''' be indented by a TAB, not by spaces.
<br />
::<source lang="text">
PROG = 16Fibs

CC = gcc 
LD = ld 
NASM = nasm   

LDFLAGS = -melf_i386 
NASMFLAGS = -f elf -F stabs  


OBJS = 231Lib.o $(PROG).o 

default: $(PROG)  

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

231Lib.o: 231Lib.asm 
	$(NASM) $(NASMFLAGS) 231Lib.asm  

$(PROG).o: $(PROG).asm 
	$(NASM) $(NASMFLAGS) $(PROG).asm

clean: 
	rm -rf *.o *~  

cleanall: 
	rm -rf *.o $(PROG) *~
</source>
<br />
* You can now edit your file and recreate the executable by typing:
 
   make

:at the Linux prompt.  Run your program as usual:
 
  ./16Fibs
 
* To remove the object files from your directory, type:
 
  make clean
 
* To remove the executables as well as the object files, as well as the files that have a ~ at the end of their names, type:
 
  make cleanall

<br />
=Makefile Combining C and Nasm=
<br />
<source lang="text">
CC = gcc
LD = gcc
NASM = nasm 

CFLAGS =  -c -m32
LFLAGS = -m32
NASMFLAGS = -f elf -F stabs

PROG = printBinary

OBJS = asm_io.o $(PROG).o driver.o


default: $(PROG)

$(PROG): $(OBJS) 
	$(LD) $(LFLAGS) $(OBJS)  -o $(PROG)

asm_io.o: asm_io.asm
	$(NASM) $(NASMFLAGS) asm_io.asm

$(PROG).o: $(PROG).asm asm_io.inc
	$(NASM) $(NASMFLAGS) $(PROG).asm

driver.o: driver.c 
	$(CC) $(CFLAGS) driver.c

clean:
	rm -rf *.o *~

real_clean:
	 rm -rf *.o $(PROG) *~


</source>

<br />

=Usage=

* Edit any of driver.c, asm_io.asm, asm_io.inc, or printBinary.asm, and to generate the executable, simply type:

    make

:and the executable will be generated.  Run it with

    ./printBinary

* If you want to force a "re-make", simply '''touch''' any of the .asm or .c files.  See examples below:

 [231a@grendel ~/handout]$ make
 make: Nothing to be done for `default'.
 
 [231a@grendel ~/handout]$ touch driver.c
 
 [231a@grendel ~/handout]$ make 
 gcc -c -m32 driver.c
 gcc -m32 asm_io.o printBinary.o driver.o  -o printBinary
 
 [231a@grendel ~/handout]$ make
 make: Nothing to be done for `default'.
  
 [231a@grendel ~/handout]$ touch asm_io.inc
 
 [231a@grendel ~/handout]$ make
 nasm  -f elf -F stabs printBinary.asm
 gcc -m32 asm_io.o printBinary.o driver.o  -o printBinary
 
 [231a@grendel ~/handout]$ touch asm_io.asm
 
 [231a@grendel ~/handout]$ make
 nasm  -f elf -F stabs asm_io.asm
 gcc -m32 asm_io.o printBinary.o driver.o  -o printBinary
 
 [231a@grendel ~/handout]$ 




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[[Category:CSC231]]