How to override the standard library functions like memcpy, memset and memmove etc in ARM.

1) Use C preprocessor to replace memcpy => my_memcpy
2) Write your own and be sure to link first before standard lib is linked.

This should work, but not for the case where the compiler uses build-in memcpy/memset in cases like this:

char a[4] = {0};

But I am sure the manual might give you some hints too.

Is --no_scanlib what you want?  http://infocenter.ar...f/CHDCEHIJ.html

Is their anyway I should be still able to call standard functions, but just disable the linking to standard library functions.

I would like to call a user defined memcpy, memset etc functions and avoid the usage of standard ARM library functions.
What are the possible ARM compiler settings or macro's to be enabled to achive this?