From: Andrew Haley <aph@cambridge.redhat.com>
To: linux-ia64@vger.kernel.org
Subject: Re: [Linux-ia64] getcontext() correctly implemented ?
Date: Fri, 21 Sep 2001 08:41:05 +0000 [thread overview]
Message-ID: <marc-linux-ia64-105590698805235@msgid-missing> (raw)
In-Reply-To: <marc-linux-ia64-105590698805230@msgid-missing>
stefan writes:
>
> The garbage collector of GNU Guile does not need the machine
> context in a signal handler. It just looks for heap references
> within the programs stack. The top of the stack is saved when
> starting the program, the bottom is gained from the current stack
> position when garbage collecting. More references might be within
> the machines registers. That is why it uses setjmp() in order to
> get these into a defined buffer. On a ia64 Linux setjump() is not
> said to save *all* registers. That is why I thought the
> getcontext() function could help here. Is that true ? I already
> tried it with glibc 2.2.3 without success. Still missed some
> references...
I can't help thinking you'd be best looking at Hans Boehm's garbage
collector and the way it accesses registers on IA-64. boehm-gc is in
a subdir of the gcc soures.
Andrew.
next prev parent reply other threads:[~2001-09-21 8:41 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-09-20 17:34 [Linux-ia64] getcontext() correctly implemented ? stefan
2001-09-20 18:26 ` David Mosberger
2001-09-20 22:09 ` stefan
2001-09-20 22:58 ` David Mosberger
2001-09-21 8:41 ` Andrew Haley [this message]
2001-09-21 14:11 ` stefan
2001-09-21 21:28 ` Boehm, Hans
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