From mboxrd@z Thu Jan  1 00:00:00 1970
From: Arnout Vandecappelle <arnout@mind.be>
Date: Thu, 20 Jul 2017 01:17:31 +0200
Subject: [Buildroot] [PATCH v7 1/9] package/patchelf: add patch for
 rpath sanitization under a root directory
In-Reply-To: <1499273594-12106-2-git-send-email-wg@grandegger.com>
References: <1499273594-12106-1-git-send-email-wg@grandegger.com>
 <1499273594-12106-2-git-send-email-wg@grandegger.com>
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To: buildroot@busybox.net



On 05-07-17 18:53, Wolfgang Grandegger wrote:
> The patch allows to use patchelf to sanitize the rpath of the buildroot
> libraries and binaries using the option "--make-rpath-relative <rootdir>".
> Recent versions of patchelf will not built on old Debian and RHEL systems
> due to C++11 constructs. Therefore we stick with v0.9 for the time being.

 One more thing (but that can be a completely separate follow-up patch).

 Currently, in most cases, we clear the rpath completely. But patchelf also has
functionality to remove the RUNPATH entry in the dynamic section. Although this
doesn't really make the file smaller (the space for the original string is kept,
the old string is just overwritten with X's), removing the RUNPATH entry could
speed up dynamic loading slightly. It's also just weird to see these empty
RUNPATH strings when you do a readelf.

 The code to do that is already there, in the rpRemove section. It's pretty
simple to factor it out.

 Regards,
 Arnout

-- 
Arnout Vandecappelle                          arnout at mind be
Senior Embedded Software Architect            +32-16-286500
Essensium/Mind                                http://www.mind.be
G.Geenslaan 9, 3001 Leuven, Belgium           BE 872 984 063 RPR Leuven
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