Re: [Chicken-hackers] mprotect on malloc'ed memory?

[Elf]

um, if im understading the openbsd pages right, it might work, but it wont 
necessarily protect only the page.  according to POSIX, its not undefined, its
an error to use mprotect on anything but mmapped regions.  at a guess, even
if it does happen to work, you'll be looking at a lifetime of unpredictable
and undebuggable SIGSEGVs.  may i ask the intended purpose of mprotecting
regular memory?

-elf

On Mon, 19 Nov 2007, felix winkelmann wrote:

> Hi!
>
> A question to the unix hackers:
>
> Is it legal to call mprotect() on memory allocated via malloc()? (yes, properly
> aligned to page boundaries). On Linux it seems to work, but according to
> POSIX it is undefined. What about BSD/Mac systems?
>
>
> cheers,
> felix
>
>
> _______________________________________________
> Chicken-hackers mailing list
> address@hidden
> http://lists.nongnu.org/mailman/listinfo/chicken-hackers