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0x1C-makefiles

README.md

0x1C. C - Makefiles

Resources

Read or watch:

Learning Objectives

General

  • What are make, Makefiles
  • When, why and how to use Makefiles
  • What are rules and how to set and use them
  • What are explicit and implicit rules
  • What are the most common / useful rules
  • What are variables and how to set and use them

Tasks

0. make -f 0-Makefile

  • Create your first Makefile.

Requirements:

name of the executable: school rules: all

The all rule builds your executable

The all rule builds your executable variables: none

Mode: mandatory

File: 0-Makefile

1. make -f 1-Makefile

  • Requirements:

Requirements:

name of the executable: school rules: all

The all rule builds your executable

The all rule builds your executable variables: CC, SRC

CC: the compiler to be used SRC: the .c files

CC: the compiler to be used SRC: the .c files

Mode: mandatory

File: 1-Makefile

2. make -f 2-Makefile

  • Create your first useful Makefile.

Requirements:

name of the executable: school rules: all

The all rule builds your executable

The all rule builds your executable variables: CC, SRC, OBJ, NAME

CC: the compiler to be used SRC: the .c files OBJ: the .o files NAME: the name of the executable

CC: the compiler to be used SRC: the .c files OBJ: the .o files NAME: the name of the executable The all rule should recompile only the updated source files You are not allowed to have a list of all the .o files

Mode: mandatory

File: 2-Makefile

3. make -f 3-Makefile

  • Requirements:

Requirements:

name of the executable: school rules: all, clean, oclean, fclean, re

all: builds your executable clean: deletes all Emacs and Vim temporary files along with the executable oclean: deletes the object files fclean: deletes all Emacs and Vim temporary files, the executable, and the object files re: forces recompilation of all source files

all: builds your executable clean: deletes all Emacs and Vim temporary files along with the executable oclean: deletes the object files fclean: deletes all Emacs and Vim temporary files, the executable, and the object files re: forces recompilation of all source files variables: CC, SRC, OBJ, NAME, RM

CC: the compiler to be used SRC: the .c files OBJ: the .o files NAME: the name of the executable RM: the program to delete files

CC: the compiler to be used SRC: the .c files OBJ: the .o files NAME: the name of the executable RM: the program to delete files The all rule should recompile only the updated source files The clean, oclean, fclean, re rules should never fail You are not allowed to have a list of all the .o files

Mode: mandatory

File: 3-Makefile

4. A complete Makefile

  • Requirements:

Requirements:

name of the executable: school rules: all, clean, fclean, oclean, re

all: builds your executable clean: deletes all Emacs and Vim temporary files along with the executable oclean: deletes the object files fclean: deletes all Emacs and Vim temporary files, the executable, and the object files re: forces recompilation of all source files

all: builds your executable clean: deletes all Emacs and Vim temporary files along with the executable oclean: deletes the object files fclean: deletes all Emacs and Vim temporary files, the executable, and the object files re: forces recompilation of all source files variables: CC, SRC, OBJ, NAME, RM, CFLAGS

CC: the compiler to be used SRC: the .c files OBJ: the .o files NAME: the name of the executable RM: the program to delete files CFLAGS: your favorite compiler flags: -Wall -Werror -Wextra -pedantic

CC: the compiler to be used SRC: the .c files OBJ: the .o files NAME: the name of the executable RM: the program to delete files CFLAGS: your favorite compiler flags: -Wall -Werror -Wextra -pedantic The all rule should recompile only the updated source files

The clean, oclean, fclean, re rules should never fail

You are not allowed to have a list of all the .o files

Mode: mandatory

File: 4-Makefile

5. Island Perimeter

  • Technical interview preparation:

Requirements:

You are not allowed to google anything Whiteboard first

Mode: mandatory

File: 5-island_perimeter.py

6. make -f 100-Makefile

  • Requirements:

Requirements:

name of the executable: school rules: all, clean, fclean, oclean, re

all: builds your executable clean: deletes all Emacs and Vim temporary files along with the executable oclean: deletes the object files fclean: deletes all Emacs and Vim temporary files, the executable, and the object files re: forces recompilation of all source files

all: builds your executable clean: deletes all Emacs and Vim temporary files along with the executable oclean: deletes the object files fclean: deletes all Emacs and Vim temporary files, the executable, and the object files re: forces recompilation of all source files variables: CC, SRC, OBJ, NAME, RM, CFLAGS

CC: the compiler to be used SRC: the .c files OBJ: the .o files NAME: the name of the executable RM: the program to delete files CFLAGS: your favorite compiler flags: -Wall -Werror -Wextra -pedantic

CC: the compiler to be used SRC: the .c files OBJ: the .o files NAME: the name of the executable RM: the program to delete files CFLAGS: your favorite compiler flags: -Wall -Werror -Wextra -pedantic The all rule should recompile only the updated source files The clean, oclean, fclean, re rules should never fail You are not allowed to have a list of all the .o files You have to use $(RM) for the cleaning up rules, but you are not allowed to set the RM variable You are not allowed to use the string $(CC) more than once in your Makefile You are only allowed to use the string $(RM) twice in your Makefile You are not allowed to use the string $(CFLAGS) (but the compiler should still use the flags you set in this variable) You are not allowed to have an $(OBJ) rule You are not allowed to use the %.o: %.c rule Your Makefile should work even if there is a file in the folder that has the same name as one of your rule Your Makefile should not compile if the header file m.h is missing

Mode: #advanced

File: 100-Makefile