making your own malloc function in C

Question

I need your help in this. I have an average knowledge of C and here is the problem. I am about to use some benchmarks to test some computer architecture stuff (branch misses

Answer 1

You need to link against libc.a or the equivilent for your system. If you don't use the standard C lib you won't get any of the startup code that runs before the main function either. Your program will never run....

You could either allocate a block of static data and use that in the place of malloc, like:

// char* fred = malloc(10000);
// equals

static char [100000] fred;

or call the standard malloc for a large block of continuous memory on startup and write yr own malloc type function to divide that down. In the 2nd case you would start benchmarking after the calling the system's malloc as to not effect the benchmarks.