Experimental Physics and
Industrial Control System

Érico Nogueira Rolim via Tech-talk <tech-talk at aps.anl.gov> · Mon, 17 Oct 2022 18:08:25 +0000

Hi!

I'm developing an IOC to be deployed on a device running an older Linux
distro, so I'm building the application statically in order to simplify
my deployment process, at least until we can update the distro on the
device. For this purpose, I'm starting out with epics base 3.15.9, which
is giving me some issues.

- I added "STATIC_BUILD=YES" to my CONFIG_SITE file

- I ran "make" and the resulting binary was dynamic (per ldd output)

- I removed the contents of "STATIC_LDFLAGS_YES= -Wl,-Bstatic" and
"STATIC_LDLIBS_YES= -Wl,-Bdynamic" in
configure/os/CONFIG.linux-x86.linux-x86 and the build was completed
successfully but the resulting binary was still dynamic. Removing only
the LDLIBS one lead to a linking error: "/usr/bin/ld: cannot find -lgcc_s"

- I changed "GNU_LDLIBS_YES = -lgcc" to "GNU_LDLIBS_YES = -lgcc -static"
in configure/CONFIG.gnuCommon

- I removed the contents of "STATIC_LDFLAGS_YES= -Wl,-Bstatic" and
"STATIC_LDLIBS_YES= -Wl,-Bdynamic" in
configure/os/CONFIG.Common.linuxCommon as well (the content from
CONFIG.linux-x86 seems to be partly duplicated)

- I added "COMMANDLINE_LIBRARY = READLINE_NCURSES" to CONFIG_SITE and
changed "*LDLIBS_READLINE_NCURSES = -lreadline -lncurses" **to
"*LDLIBS_READLINE_NCURSES = -lreadline -lncurses -ltinfo"* *in
configure/os/CONFIG.Common.linuxCommon (in epics-base) to fix the
linking errors due to missing functions from libtinfo (I feel like this
should be handled by the build system, but I'm not sure how it would happen)

- the resulting binary was finally static

Did I miss something about building a static IOC? Having to mess around
in the epics-base files doesn't seem ideal... To cover all my bases, I
also tried doing this on epics-base 7.0.7, which required the same steps
to spit out a static executable.

Thank you,

Érico

Aviso Legal: Esta mensagem e seus anexos podem conter informações confidenciais e/ou de uso restrito. Observe atentamente seu conteúdo e considere eventual consulta ao remetente antes de copiá-la, divulgá-la ou distribuí-la. Se você recebeu esta mensagem por engano, por favor avise o remetente e apague-a imediatamente.

Disclaimer: This email and its attachments may contain confidential and/or privileged information. Observe its content carefully and consider possible querying to the sender before copying, disclosing or distributing it. If you have received this email by mistake, please notify the sender and delete it immediately.

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System