Experimental Physics and
Industrial Control System

Dirk Zimoch <[email protected]> · Tue, 26 Oct 2010 11:51:12 +0200

Hi Emmanuel,
For each cross compile architecture you have several configuration
files. Let's have a look on linux-arm (in configure/os):

> ls -1 *linux-arm*

CONFIG.Common.linux-arm

CONFIG.Common.linux-arm_eb

CONFIG.Common.linux-arm_el

CONFIG.linux-x86.linux-arm

CONFIG.linux-x86.linux-arm_eb

CONFIG.linux-x86.linux-arm_el

CONFIG_SITE.linux-x86.linux-arm

CONFIG_SITE.linux-x86.linux-arm_eb

CONFIG_SITE.linux-x86.linux-arm_el
So we have 3 different cross architectures here (linux-arm,
linux-arm_eb, linux-arm_el). Select one as your starting point.
Either modify the corresponding files (eg. for linux-arm_el:)
CONFIG.Common.linux-arm_el
CONFIG.linux-x86.linux-arm_el
CONFIG_SITE.linux-x86.linux-arm_el
or make your own files (*.linux-armv4l), copy or include the existing
files and overwrite what is different yor you.
Then you add the cross architecture to CROSS_COMPILER_TARGET_ARCHS
(either in CONFIG or CONFIG_SITE or CONFIG_SITE.linux-x86.Common) and
run make.
If you have further questions, please ask.
Dirk
[email protected] wrote:

Rod,
I am basically trying to compile EPICS for the TS7370 (arm based arch).
How I achieve this is not important to me.
I looked at the TS cross toolchain.

I understand I am supposed to change my makefiles following

CROSS = /opt/crosstool/gcc-3.3.4-glibc-2.3.2/bin/arm-linux-
CC = $(CROSS)gcc

but how do I do that in EPICS?

I am not even sure how to correctly setup a target architecture...

export T_A=linux-arm; make

or even make T_A=linux-arm

seem to work.
My target EPICS_HOST_ARCH is linux-armv4l

My host is linux 64 bit.
It seems I need to create the files
CONFIG.linux-x86_64.armv4tl

CONFIG_SITE.linux-x86.linux-armv4tl

CONFIG.Common.linux-armv4tl
I copied ../configure/os/CONFIG...linux-arm... files to compile
But I run into several issues...
Is there any resource for cross compiling on EPICS?
Any other info on how you achieve to run epics on a TS7370 is welcome.
On 08:57 Mon 25 Oct , Rod Nussbaumer wrote:

I have also been able to cross compile EPICS and other applications
using the Technologics Systems cross toolchain, but am not using that
for production work.

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System