From: Roland McGrath <roland@redhat.com>
To: Mark Wielaard <mjw@redhat.com>
Cc: Stan Cox <scox@redhat.com>, systemtap@sourceware.org
Subject: Re: new static user probe types
Date: Thu, 23 Jul 2009 19:33:00 -0000 [thread overview]
Message-ID: <20090723193338.23C681C7@magilla.sf.frob.com> (raw)
In-Reply-To: Mark Wielaard's message of Thursday, 23 July 2009 12:28:36 +0200 <1248344916.3494.33.camel@springer.wildebeest.org>
> The .probes section stores the addresses of the generated labels that
> are used to find the probe addresses. This isn't a problem for an
> executable that isn't relocatable. But it is for shared libraries which
> has relocatable addresses (if you have selinux memory protection turned
> on). In that case the section has to be writable for the linker. See
> http://sourceware.org/bugzilla/show_bug.cgi?id=10381
Bah! I'm sure I already told you about doing this right! The .probes
section should contain relative addresses fixed at compile time, just like
every other kind of static annotation (and code itself) is made PIC-friendly.
prev parent reply other threads:[~2009-07-23 19:33 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-26 21:26 Stan Cox
2009-07-15 16:19 ` Stan Cox
2009-07-15 18:39 ` Josh Stone
2009-07-15 20:47 ` Stan Cox
2009-07-15 21:57 ` Josh Stone
2009-07-16 13:44 ` Stan Cox
2009-07-20 18:34 ` Stan Cox
2009-07-22 10:42 ` Mark Wielaard
2009-07-22 14:39 ` Frank Ch. Eigler
2009-07-22 17:10 ` Mark Wielaard
2009-07-29 15:44 ` Stan Cox
2009-07-29 15:51 ` Stan Cox
2009-07-23 3:07 ` Roland McGrath
2009-07-23 10:28 ` Mark Wielaard
2009-07-23 14:40 ` Frank Ch. Eigler
2009-07-23 19:33 ` Roland McGrath [this message]
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