to compile the project, go at the root of the repository and do the command make. it will compile to libft_malloc_$HOSTTYPE.so and libft_malloc.so (link to the first). if HOSTTYPE is not set, it will be set to your machine name and your kernel name separated by a -

usage

you can have two usage of the lib. you can either override the normal malloc function in a already compiled program or you can compile your program with the lib , giving you acess to other functions like show_alloc_mem or show_alloc_mem_ex. in the examples <folder> represent the folder containing the compilation results

to override the functions in an already compile program you need to do this command :

 export LD_LIBRARY_PATH=. LD_PRELOAD=libft_malloc.so

to compile a program with the lib, you have to add these parameters at the end of your compilation command (for gcc or clang):

-L<folder> -lft_malloc

tests

a test program is available at the root. to execute it do the command make test and then execute the program that have been compiled with ./tests

debug variables

one of the bonus of this project is adding debug environment variable. here is a list of the available debug environment variables

variable name	action
MALLOC_NO_UNMAP	the free function will never free the memory it mapped. active if the variable is set
MALLOC_DEBUG_LEVEL	all the functions in the project will print logs in a file named malloc.log. the diffrent log levels available are `NONE` (default) , `ERR`, `WARN`, `INFO`.

find leaks

since valgrind wont work when using this function I added an environment variable that shows if there is still some memory bloc in use at exit. to enable it, you need to set the environment variable MALLOC_SHOW_LEAKS