Experimental Physics and
Industrial Control System

Florian Feldbauer via Tech-talk <tech-talk at aps.anl.gov> · Wed, 30 Mar 2022 16:15:40 +0200

Hey all,

we use docker images to easily deploy our IOCs for our detector control

system.

The images are build for amd64, arm64/aarch64 and armv7.

To reduce the size of those images, I recently switched from dynamic to

static linking by adding the line

>      && echo "STATIC_BUILD=YES" >> configure/CONFIG_SITE.local \
to our Dockerfile.

When compiling base7 for amd64 and aarch64 this is working just fine,

but I get an error on arm/v7:

#0 189.7 Installing created executable /epics/base/bin/linux-arm/antelope
#0 190.1 /epics/base/bin/linux-arm/antelope -bparse -l -d ../flex/parse.y
#0 190.1 /usr/lib/ld.so.1: No such file or directory
#0 198.7 Expanding ../libComVersion.h@ to ../O.Common/libComVersion.h

I investigated the issue a bit closer and found the following:

root@195e454a8580:/epics/src/base# ldd /epics/base/bin/linux-arm/antelope
  linux-vdso.so.1 (0x7ef10000)
  libc.so.6 => /lib/arm-linux-gnueabihf/libc.so.6 (0x76e71000)
  /usr/lib/ld.so.1 => /lib/ld-linux-armhf.so.3 (0x76f70000)
root@195e454a8580:/epics/src/base# ls /usr/lib/ld.so.1
ls: cannot access '/usr/lib/ld.so.1': No such file or directory

For some reason antelope gets linked against /usr/lib/ld.so.1 on armv7

but this file does not exist.

Does anyone know what causes this issue?

Cheers,
Florian

--
Ruhr-Universität Bochum
AG der Experimentalphysik I
Dr. Florian Feldbauer
NB 2/131 / Fach 125
Universitätsstr. 150
D-44801 Bochum

Office: NB 2/134
Phone:  (+49)234 / 32-23563
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Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System