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Re: CVS commit: src/sys
On Sun, Oct 14, 2012 at 06:57:58PM +0000, Christos Zoulas wrote:
> In article <20121014184816.GA7211%britannica.bec.de@localhost>,
> Joerg Sonnenberger <joerg%britannica.bec.de@localhost> wrote:
> >This is wrong in multiple ways:
> >(1) Why do we care about FreeBSD compatibility? The existing code is
> >pretty much useless and should just die already. There is no support for
> >anything modernish anyway.
> Because we want to share implementations of 3rd party programs.
Doesn't sound like a good reason to repeat cruft and more importantly,
to extend the list of hard-coded sysctl values. All new code should use
sysctl by name.
> >(3) The information is already available via libpthread and AT_STACKBASE
> >when processing the aux vector directly.
> Is there a way to get information from AUXV after ld.so is done, from libc?
> I know about the stack functions in libpthread, but what happens if you
> are not threaded?
> >As such, I ask for reverting this.
> I don't mind. I was just doing some tests with boehm-gc. It would be nice
> if there was a way to get to the stack base and size portably.
We could provide the stack-related attributes in libc itself for
non-threaded applications, but I am not sure how useful that is.
boehm-gc pretty much has to deal with multi-threaded code anyway.
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