[Gc] sparc patch

Hans Boehm Hans.Boehm at hp.com
Sat Oct 25 22:32:09 PDT 2008

On Wed, 22 Oct 2008, Petr Kraj?a wrote:

> I really appreciate Rex's patch. I am using patch like this for a long
> time and it works fine for me. Patch against current tree is attached.
Thanks.  I put this version into my tree, and expect to check it in
> Btw. I'm using GC on SPARC even with THREAD_LOCAL_ALLOC option turned on
> and I think it may be turned on by default, but I don't know how to test
> if it works correctly.
I would expect that it works correctly.  You should see an appreciable
performance difference for a test program that just allocates and drops
objects in a tight loop, especially in multiple threads.  Turning
this on replaces GC_malloc with a completely different implementation.
Since it doesn't crash, you're probably OK.  And there's no fundamental
reason it shouldn't work on sparc linux, aside from possibly the very
intermittent bug some others are reporting on X86.

> Petr Krajca
> On Mon, 20 Oct 2008 19:55:49 -0400, Boehm, Hans <hans.boehm at hp.com> wrote:
>> Could you make this more specific to Linux?  The patch you sent seems to
>> disable use of getcontext for all SPARC operating systems.  Since I
>> can't test on most of them, I'd rather only change platforms that we
>> know are currently broken (or tell me that you also tested on Solaris
>> and *bsd).
>> This patch also conflicts with other changes in cvs on sourceforge.  If
>> you are comfortable dealing with cvs, a patch against the current tree
>> would be preferred.  Otherwise I can adapt it, but that slightly
>> increases the chances I'll get it wrong.
>> Thanks.
>> Hans
>>> -----Original Message-----
>>> From: gc-bounces at napali.hpl.hp.com
>>> [mailto:gc-bounces at napali.hpl.hp.com] On Behalf Of Rex Dieter
>>> Sent: Wednesday, October 15, 2008 6:11 AM
>>> To: gc at napali.hpl.hp.com
>>> Subject: [Gc] sparc patch
>>> Here's a patch that was generated by our sparc folks to get
>>> gc-7.1 buildable for sparc-linux.
>>> -- Rex
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