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From: ron minnich <rminnich@gmail.com>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
Subject: Re: [9fans] system call trace version of 9vx available.
Date: Wed, 19 May 2010 08:13:37 -0700	[thread overview]
Message-ID: <AANLkTimaXr0D2FHahQzxirhTVXW1ZI_4FJHdCb2b7tfQ@mail.gmail.com> (raw)
In-Reply-To: <2de0259d6ddff1e191615b78edb361aa@kw.quanstro.net>

On Tue, May 18, 2010 at 10:45 PM, erik quanstrom <quanstro@quanstro.net> wrote:

> ron, please enlighten the ignorant.  could you constrast this with
> truss?  or maybe there's a man page?

I need to write one.

The biggest diff from truss is that the program itself is dead simple,
since most of the work is done by the kernel and the data relayed to
the program as text. The program is really a fancier, fork-following
version of this script:
while (echo startsyscall > /proc/$1/ctl) cat /proc/$1/syscalltrace

All the formatting etc. is in the kernel.

ron



  reply	other threads:[~2010-05-19 15:13 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-05-19  0:22 ron minnich
2010-05-19  1:54 ` David Leimbach
2010-05-19  1:53   ` erik quanstrom
2010-05-19  2:13   ` ron minnich
2010-05-19  4:37     ` David Leimbach
2010-05-19  4:52       ` ron minnich
2010-05-19  5:26         ` David Leimbach
2010-05-19 11:06       ` Ethan Grammatikidis
2010-05-19  5:40   ` Bakul Shah
2010-05-19  5:45     ` erik quanstrom
2010-05-19 15:13       ` ron minnich [this message]
2010-05-19 15:09     ` ron minnich
2010-05-19 17:18       ` Bakul Shah
2010-05-19 17:41         ` ron minnich
2010-05-19 18:23           ` Bakul Shah
2010-05-19 18:31             ` erik quanstrom
2010-05-19 18:33             ` ron minnich
2010-05-19 20:30               ` Bakul Shah
2010-05-19 20:38                 ` ron minnich
2010-05-19 21:48                   ` ron minnich
2010-05-19 22:41                     ` ron minnich
2010-05-19 22:52                       ` Nick LaForge
2010-05-19 22:02                   ` Bakul Shah
2010-05-19 22:25                     ` ron minnich
2010-05-19 22:46                       ` Devon H. O'Dell
2010-05-20  0:26                       ` Bakul Shah
2010-05-20  0:32                         ` ron minnich
2010-05-20  5:46                           ` ron minnich
2010-05-21  7:07                           ` Bakul Shah
2010-05-19 18:46             ` John Floren
2010-05-19 17:51         ` erik quanstrom
2010-05-19 17:59           ` ron minnich
2010-05-19 17:53         ` ron minnich
2010-05-19 18:43           ` Bakul Shah
2010-05-19 18:51             ` ron minnich
2010-05-19 18:57               ` erik quanstrom

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