From owner-freebsd-hackers  Wed Jun 27 19:34:23 2001
Delivered-To: freebsd-hackers@freebsd.org
Received: from bingnet2.cc.binghamton.edu (bingnet2.cc.binghamton.edu [128.226.1.18])
	by hub.freebsd.org (Postfix) with ESMTP id 56F7A37B411
	for <freebsd-hackers@freebsd.org>; Wed, 27 Jun 2001 19:34:18 -0700 (PDT)
	(envelope-from zzhang@cs.binghamton.edu)
Received: from opal (cs.binghamton.edu [128.226.123.101])
	by bingnet2.cc.binghamton.edu (8.11.4/8.11.4) with ESMTP id f5S2YHU22478
	for <freebsd-hackers@freebsd.org>; Wed, 27 Jun 2001 22:34:17 -0400 (EDT)
Date: Wed, 27 Jun 2001 22:34:16 -0400 (EDT)
From: Zhihui Zhang <zzhang@cs.binghamton.edu>
X-Sender: zzhang@opal
To: freebsd-hackers@freebsd.org
Subject: trace a library call
Message-ID: <Pine.SOL.4.21.0106272231010.22637-100000@opal>
MIME-Version: 1.0
Content-Type: TEXT/PLAIN; charset=US-ASCII
Sender: owner-freebsd-hackers@FreeBSD.ORG
Precedence: bulk
List-ID: <freebsd-hackers.FreeBSD.ORG>
List-Archive: <http://docs.freebsd.org/mail/> (Web Archive)
List-Help: <mailto:majordomo?subject=help> (List Instructions)
List-Subscribe: <mailto:majordomo?subject=subscribe%20freebsd-hackers>
List-Unsubscribe: <mailto:majordomo?subject=unsubscribe%20freebsd-hackers>
X-Loop: FreeBSD.ORG


Suppose I write a program that calls sbrk(). How can I trace into the
function sbrk()? In this particular case, I want to know whether
sbrk() calls the function in file lib/libstand/sbrk.c or sys/sbrk.S.
Sometimes it is nice to see what system call is eventually called as well.
I know dynamic linking may make this hard. But is there a way to do
this? Thanks.

-Zhihui


To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-hackers" in the body of the message