From: Richard Henderson <rth@twiddle.net>
To: linux-ia64@vger.kernel.org
Subject: [Linux-ia64] Re: ia64 cache flushing?
Date: Tue, 17 Dec 2002 03:42:51 +0000 [thread overview]
Message-ID: <marc-linux-ia64-105590709805594@msgid-missing> (raw)
In-Reply-To: <marc-linux-ia64-105590709805582@msgid-missing>
On Mon, Dec 16, 2002 at 06:15:28PM -0800, David Mosberger wrote:
> For someone who cares about modules and ia64 performance: you might
> want to consider to use "brl" in the PLT stub instead of the
> standardized code sequence.
You'll have to figure out how to find the plt stub though.
It's not marked in any way. The only thing you get a pointer
to is the .IA_64.pltoff entry.
For userland, the .plt stub has to use an indirect branch
because the first invocation goes through the dynamic linker.
Then we update the .pltoff entry and so subsequent calls go
direct to the target.
r~
next prev parent reply other threads:[~2002-12-17 3:42 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-12-16 23:22 [Linux-ia64] Re: ia64 cache flushing? Rusty Russell
2002-12-17 0:25 ` Richard Henderson
2002-12-17 0:27 ` Rusty Russell
2002-12-17 1:14 ` Rusty Russell
2002-12-17 1:32 ` Richard Henderson
2002-12-17 2:11 ` Rusty Russell
2002-12-17 2:15 ` David Mosberger
2002-12-17 3:42 ` Richard Henderson [this message]
2002-12-17 3:50 ` David Mosberger
2002-12-17 7:20 ` Richard Henderson
2002-12-19 23:15 ` David Mosberger
2002-12-20 0:56 ` Richard Henderson
2002-12-20 1:07 ` David Mosberger
2002-12-20 1:18 ` Richard Henderson
2002-12-20 1:20 ` David Mosberger
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