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Re: Using ggc-page with plain malloc
On Jan 16, 2000, "Martin v. Loewis" <martin@loewis.home.cs.tu-berlin.de> wrote:
>> I've been trying to arrange for ggc-page to work upon plain malloc.
>> All it needs is some way to ask for a memory area aligned at a page
>> boundary. It's a bit tricky, because of wide variations among the
>> malloc() implementations, but I believe it can made to work well
>> unless someone finds some platform that breaks the following program
>> in a way that is too hard to fix.
> Wouldn't it be simpler to use a system interface for obtaining aligned
> memory? valloc(3) is part of Single Unix, and it gives you
> sysconf(_SC_PAGESIZE)-aligned memory. In addition (or alternatively?),
> memalign gives you arbitrarily-aligned memory.
We already use valloc when it's available. But there are systems that
don't support it, and that's precisely the fallback I'm trying to
create.
--
Alexandre Oliva http://www.ic.unicamp.br/~oliva IC-Unicamp, Bra[sz]il
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