[OE-core] [PATCH] glibc: Fix ldd bug: not a dynamic executable error

[richard.purdie at linuxfoundation.org]

On Wed, 2018-08-22 at 15:02 +0200, Ricardo Ribalda Delgado wrote:
> On Wed, Aug 22, 2018 at 3:00 PM <richard.purdie at linuxfoundation.org>
> wrote:
> > 
> > On Wed, 2018-08-22 at 14:48 +0200, Ricardo Ribalda Delgado wrote:
> > > On Wed, Aug 22, 2018 at 2:45 PM <richard.purdie at linuxfoundation.o
> > > rg>
> > > wrote:
> > > > 
> > > > On Tue, 2018-08-21 at 16:58 +0200, Ricardo Ribalda Delgado
> > > > wrote:
> > > > > RTLDLIST table does not include /lib/ld-linux-x86-64.so.2,
> > > > > resulting
> > > > > on the following error:
> > > > > 
> > > > > root at qt5122:~# ldd ./qtec_webcam
> > > > > not a dynamic executable
> > > > > 
> > > > > Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda at gmail
> > > > > .com
> > > > > > 
> > > > > 
> > > > > ---
> > > > >  .../glibc/glibc/0031-ldd-rewrite.patch        | 22
> > > > > +++++++++++++++++++
> > > > >  meta/recipes-core/glibc/glibc_2.28.bb         |  1 +
> > > > >  2 files changed, 23 insertions(+)
> > > > >  create mode 100644 meta/recipes-core/glibc/glibc/0031-ldd-
> > > > > rewrite.patch
> > > > 
> > > > I'm a bit confused as with MACHINE=qemux86-64, building core-
> > > > image-
> > > > sato
> > > > with ldd added to IMAGE_INSTALL, ldd works correctly even
> > > > though it
> > > > has
> > > > /lib/ld-linux-x86-64.so.2 (which is listed in RTLDLIST).
> > > > 
> > > > We have an automated QA test checking this too:
> > > > 
> > > > http://git.yoctoproject.org/cgit.cgi/poky/tree/meta/lib/oeqa/ru
> > > > ntim
> > > > e/cases/ldd.py
> > > > 
> > > > Which version of the project are you using? How would we
> > > > reproduce
> > > > the
> > > > issue?
> > > 
> > > I am using yocto-sumo
> > 
> > I'm not aware of any fixes since sumo in this area...
> > 
> > > Maybe your tests are run agains an image that has the package lsb
> > > installed. Which creates symbolic links to the standard locations
> > 
> > There is no /lib64 in the image and I'm not using or installing
> > lsb...
> > 
> > There is significant rewriting done as part of:
> > 
> > http://git.yoctoproject.org/cgit.cgi/poky/tree/meta/recipes-core/gl
> > ibc/glibc-ld.inc
> > 
> > What value of RTLDLIST is your build showing?
> 
> RTLDLIST="/lib/ld-linux.so.2 /lib64/ld-linux-x86-64.so.2
> /libx32/ld-linux-x32.so.2"

Here I see:

$ MACHINE=qemux86-64 bitbake glibc -e | grep ^RTLDLIST=
RTLDLIST="/lib/ld-linux-x86-64.so.2"

Not sure why its different without looking at the code but its
something to look into...

Cheers,

Richard