Experimental Physics and
Industrial Control System

Michael Davidsaver via Tech-talk <tech-talk at aps.anl.gov> · Wed, 30 Mar 2022 08:47:11 -0700

On 3/30/22 07:15, Florian Feldbauer via Tech-talk wrote:

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)

It looks like "STATIC_BUILD=YES" was ignored.

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?

It would help if you could attach, or post somewhat, the complete
output of a clean 'make'.

Also the output of:

readelf -aW /epics/base/bin/linux-arm/antelope

Cheers,
Florian

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System