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[ILUG] programming query...

[ILUG] programming query...

Paul Jakma paulj at alphyra.ie
Sat Jul 28 17:46:44 IST 2001


On Sat, 28 Jul 2001, Padraig Brady wrote:

> 1. If you don't have access to the code of the shared libs they
>     will use standard malloc calls which mmalloc will map to standard
>     allocations in a (global?) sbrk managed region. I.E. you won't be
>     able to throw away this heap.

see the mmalloc() docs. it allocates memory from a heap obtained via
mmap() (mmaping what i don't know). so it's a seperate heap from the
glibc sbrk() ones.

(also glibc allocates 2 heaps iirc, one from sbrk() used to satisfy
small malloc() requests and one via mmap() for large malloc()
requests. there was a recent discussion on l-k about i386 user memory
layout - check it out).

> Padraig.
>
> kevin lyda wrote:

--paulj





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