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From: Denys Dmytriyenko <denis@denix.org>
To: Mark Hatle <mark.hatle@windriver.com>
Cc: openembedded-core@lists.openembedded.org
Subject: Re: meta-toolchain doesn't compile working binaries
Date: Tue, 06 May 2014 17:59:01 -0400	[thread overview]
Message-ID: <20140506215901.GI11339@denix.org> (raw)
In-Reply-To: <536958D5.2090806@windriver.com>

On Tue, May 06, 2014 at 04:49:09PM -0500, Mark Hatle wrote:
> On 5/6/14, 4:44 PM, Denys Dmytriyenko wrote:
> >On Tue, May 06, 2014 at 04:25:15PM -0500, Mark Hatle wrote:
> >>On 5/6/14, 3:56 PM, Khem Raj wrote:
> >>>On Tue, May 6, 2014 at 1:55 PM, Denys Dmytriyenko <denis@denix.org> wrote:
> >>>>Do you know that OE toolchain is not relocatable?
> >>>
> >>>is that true ?
> >>>
> >>
> >>It's the load path of the executables, they use the libc-nativesdk,
> >>so they need a hard path to the correct ld.so to get started.
> >
> >More specifically, it's PT_INTERP section of the ELF header in every binary
> >that hardcodes the full path to our own dynamic linker/loader (i.e. mentioned
> >libc-nativesdk). I wish it would support the use of $ORIGIN similar to RPATH
> >and RUNPATH for libraries, but I bet there are all kinds of corner cases with
> >that... :)
> >
> 
> $ORIGIN, RPATH and RUNPATH are all implemented by the ld.so, there
> is no way to dynamically assign the interpreter (ld.so).

Yes, the above wish was highly abstract and hypothetical and would probably 
require kernel to support $ORIGIN used in the ELF header... But I'm not 
suggesting it, just speculating! :)

-- 
Denys


  reply	other threads:[~2014-05-06 22:59 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-05-06  8:14 meta-toolchain doesn't compile working binaries Björn Krombholz
2014-05-06 17:01 ` Khem Raj
2014-05-06 20:55 ` Denys Dmytriyenko
2014-05-06 20:56   ` Khem Raj
2014-05-06 20:59     ` Denys Dmytriyenko
2014-05-06 21:25     ` Mark Hatle
2014-05-06 21:40       ` Khem Raj
2014-05-06 21:44         ` Mark Hatle
2014-05-06 21:49           ` Denys Dmytriyenko
2014-05-07 12:54           ` Björn Krombholz
2014-05-07 14:37             ` Mark Hatle
2014-05-07 14:58             ` Björn Krombholz
2014-05-07 17:13               ` Björn Krombholz
2014-05-06 21:44       ` Denys Dmytriyenko
2014-05-06 21:49         ` Mark Hatle
2014-05-06 21:59           ` Denys Dmytriyenko [this message]
2014-05-07 15:27             ` Richard Purdie

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