Re: execve - what happens to dynamically allocated memory?
On Thu, Nov 01, 2001 at 03:41:12PM +0100, Russell Coker wrote:
> > The dynamically allocated memory is deallocated. Mostly because the
> > allocation of memory via malloc() is done strictly within the C library,
> > and the only time it actually uses system resources is when it calls
> > sbrk() to grab more heap memory when it runs out.
>
> For libc6 in it's default mode of operation... Other malloc libraries may do
> different things. For example Electric Fence allocates memory with mmap()
> instead.
Note that libc does use sbrk for small chunks of memory but if you allocate,
say, 100K or more, it will use mmap instead. The actual limit is tunable.
--
Martijn van Oosterhout <kleptog@svana.org>
http://svana.org/kleptog/
> Magnetism, electricity and motion are like a three-for-two special offer:
> if you have two of them, the third one comes free.
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