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From: "Frank Ch. Eigler" <fche@redhat.com>
To: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: Denys Vlasenko <vda.linux@googlemail.com>,
	dsmith@redhat.com, Christoph Hellwig <hch@infradead.org>,
	Rusty Russell <rusty@rustcorp.com.au>,
	akpm@linux-foundation.org, linux-kernel@vger.kernel.org
Subject: Re: [patch 1/4] Linux Kernel Markers - Architecture Independent Code
Date: Fri, 21 Sep 2007 09:30:07 -0400	[thread overview]
Message-ID: <20070921133006.GF8964@redhat.com> (raw)
In-Reply-To: <20070921125819.GA13129@Krystal>

Hi -

On Fri, Sep 21, 2007 at 08:58:19AM -0400, Mathieu Desnoyers wrote:
> [...]
> > > Current systemtap marker support code relies on the __markers_strings
> > > section.
> > Let users know that in comment above section definition in ld script.
> [...]
>         /* Markers: strings (used by SystemTAP) */                      \
> [...]

I did not mean to imply that this was a necessary state of affairs.

The marker metadata must be stored in at least one place in the kernel
image - this just happens to be a convenient one that David Smith's
recent systemtap code used.  Without it, we'd probably have to do a
more complicated search, following the pointers within the __markers
structs.  That could work, but it hasn't been built/tested.

So, this proposed change (removal of this section) would break
systemtap, and we have to jump through more hoops to make it work
again.  Is the change worth it?

- FChE

  parent reply	other threads:[~2007-09-21 13:31 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-09-18 21:13 [patch 0/4] Linux Kernel Markers for 2.6.23-rc6-mm1 Mathieu Desnoyers
2007-09-18 21:13 ` [patch 1/4] Linux Kernel Markers - Architecture Independent Code Mathieu Desnoyers
2007-09-19 11:37   ` Mathieu Desnoyers
2007-09-19 13:53     ` Frank Ch. Eigler
2007-09-19 20:32       ` Denys Vlasenko
2007-09-21 12:58         ` Mathieu Desnoyers
2007-09-21 13:07           ` Christoph Hellwig
2007-09-21 13:30           ` Frank Ch. Eigler [this message]
2007-09-21 13:38             ` Mathieu Desnoyers
2007-10-15 19:41               ` Frank Ch. Eigler
2007-10-15 23:12                 ` Mathieu Desnoyers
2007-10-15 23:50                   ` Roland McGrath
2007-10-25 19:17                     ` Mathieu Desnoyers
2007-10-26 14:28                       ` Frank Ch. Eigler
2007-11-01  1:06                         ` [PATCH] markers: modpost Roland McGrath
2007-11-01  2:46                           ` Mathieu Desnoyers
2007-11-01  9:37                             ` Roland McGrath
2007-11-01 11:24                               ` Mathieu Desnoyers
2007-11-08 19:31                                 ` David Smith
2007-11-08 19:36                                   ` Mathieu Desnoyers
2007-11-08 19:45                                     ` David Smith
2007-11-09 16:36                                     ` David Smith
2007-11-11 23:24                                       ` Mathieu Desnoyers
2007-09-19 17:32     ` [patch 1/4] Linux Kernel Markers - Architecture Independent Code Denys Vlasenko
2007-09-19 18:46       ` Mathieu Desnoyers
2007-09-19 18:50         ` Mathieu Desnoyers
2007-09-21  0:58   ` Steven Rostedt
2007-09-21 13:45     ` Mathieu Desnoyers
2007-09-18 21:13 ` [patch 2/4] Linux Kernel Markers - Use instrumentation kconfig menu Mathieu Desnoyers
2007-09-18 21:13 ` [patch 3/4] Linux Kernel Markers - Documentation Mathieu Desnoyers
2007-09-18 23:22   ` Randy Dunlap
2007-09-19 11:18     ` Mathieu Desnoyers
2007-09-18 21:13 ` [patch 4/4] Port of blktrace to the Linux Kernel Markers Mathieu Desnoyers
2007-09-21  1:03   ` Steven Rostedt
2007-09-21 13:46     ` Mathieu Desnoyers
  -- strict thread matches above, loose matches on Subject: below --
2007-09-17 18:46 [patch 0/4] " Mathieu Desnoyers
2007-09-17 18:46 ` [patch 1/4] Linux Kernel Markers - Architecture Independent Code Mathieu Desnoyers
2007-08-27 16:05 [patch 0/4] Linux Kernel Markers Mathieu Desnoyers
2007-08-27 16:05 ` [patch 1/4] Linux Kernel Markers - Architecture Independent Code Mathieu Desnoyers
2007-08-20 20:27 [patch 0/4] Linux Kernel Markers Mathieu Desnoyers
2007-08-20 20:27 ` [patch 1/4] Linux Kernel Markers - Architecture Independent Code Mathieu Desnoyers
2007-08-21  0:43   ` Rusty Russell
2007-08-24 16:26     ` Mathieu Desnoyers
2007-08-25 20:49       ` Rusty Russell
2007-08-25 21:26         ` Mathieu Desnoyers
2007-08-12 15:10 [patch 0/4] Linux Kernel Markers Mathieu Desnoyers
2007-08-12 15:10 ` [patch 1/4] Linux Kernel Markers - Architecture Independent Code Mathieu Desnoyers

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