Re: mmap

Hi... On Thu, Aug 23, 2012 at 8:06 PM, Christophe Hauser <christophe.hauser@supelec.fr> wrote:

I often get: file = NULL flags = 0x0 (MAP_FILE) prot = 0x0 (PROT_NONE)

I am wondering what is the use for mmap with MAP_FILE and PROT_NONE together ? Not sure how to interpret that ?

hmm, things that cross my mind: - protecting low memory address (capturing null pointer abuse) - stack guard...to catch buffer over flow Maybe there are others.... CMIIW -- regards, Mulyadi Santosa Freelance Linux trainer and consultant blog: the-hydra.blogspot.com training: mulyaditraining.blogspot.com