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From: Roland McGrath <roland@redhat.com>
To: ananth@in.ibm.com
Cc: Masami Hiramatsu <mhiramat@redhat.com>,
	Frederic Weisbecker <fweisbec@gmail.com>,
	Ingo Molnar <mingo@elte.hu>, Steven Rostedt <rostedt@goodmis.org>,
	systemtap-ml <systemtap@sources.redhat.com>,
	LKML <linux-kernel@vger.kernel.org>
Subject: Re: [RFC][PATCH -tip 7/9] tracing: kprobe-tracer plugin supports 	arguments
Date: Fri, 20 Mar 2009 12:30:30 -0700 (PDT)	[thread overview]
Message-ID: <20090320193030.9D10DFC3AB@magilla.sf.frob.com> (raw)
In-Reply-To: Ananth N Mavinakayanahalli's message of  Friday, 20 March 2009 10:11:25 +0530 <20090320044125.GB6398@in.ibm.com>

> A better option could be to generalize syscall_get_arguments() to work
> for functions other than just syscalls where pt_regs are available.

The syscall register argument passing conventions are disjoint from the
normal function calling ABI on some machines (x86).  You can't conflate them.


Thanks,
Roland


  reply	other threads:[~2009-03-20 19:31 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-03-19 21:10 Masami Hiramatsu
2009-03-20  0:51 ` Frederic Weisbecker
2009-03-20  3:40   ` Masami Hiramatsu
2009-03-20  4:41     ` Ananth N Mavinakayanahalli
2009-03-20 19:30       ` Roland McGrath [this message]
2009-03-20  8:19 ` Ananth N Mavinakayanahalli
2009-03-20 11:29   ` Masami Hiramatsu

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