The Experimental Physics and Industrial Control Systems (EPICS) is an extensible set of software components and tools with which application developers can create a control system. This control system can be used to control accelerators, detectors, telescopes, or other scientific experimental equipment. EPICS base is the set of core software, i.e. the components of EPICS without which EPICS would not function. EPICS base allows an arbitrary number of target systems, IOCs (input/output controllers), and host systems, OPIs (operator interfaces) of various types.
This version of EPICS base contains significant changes and offers major improvements in functionality over previous versions. Please check the RELEASE_NOTES file in the distribution for description of changes and release migration details.
Please review the COPYRIGHT* files included in the distribution for legal terms of usage.
Currently this version of EPICS base has been built on the following hosts and targets. If you are trying to build EPICS base on a different host or for a different target machine you must have the proper host/target cross compiler and header files and you will have to add the appropriate configure files to the base/configure/os/directory. You can start by copying existing configuration files in the configure/os directory and then make changes for your new platforms.
Host target platforms (operating system - architecture - <alternate c++ compiler>)solaris-sparc
Cross compile target platforms (operating system - architecture)
This version of EPICS base has been built and tested using the host vendor's C and C++ compilers as well as the GNU gcc and g++ compilers. The GNU cross-compilers have been used for all cross-compiled targets. You may need the host vendor's C++ compiler in your search path to do EPICS builds. Check the definitions of ACC and CCC in base/configure/os/CONFIG.<host>.<host> or the definitions for GCC and G++ if ANSI=GCC and CPLUSPLUS=GCC are specified in CONFIG_SITE.
You must use GNU make, gnumake, for any EPICS builds. Set your path so that a gnumake version 3.70 or later is available.
You must have perl version 5.0 or later installed. The configure files do not specify the perl full pathname. You need the perl executable in your search path.
Unzip and tar (Winzip on WIN32 systems)
You must have tools available to unzip and untar the EPICS base distribution file.
You must have Tornado 2.0 installed if any of your target systems are vxWorks systems. Tornado 2.0 provides the cross-compiler and header files needed to build for these target systems. The full path location to Tornado 2.0 must be specified in the base/configure/RELEASE file. You will also need one or more board support packages. Consult the vxWorks documentation for details.
The GNU zipped tar file is approximately 1.4 MB in size. The unzipped untarred distribution source tree is approximately 6 MB. The build created files for each host take approximately 40 MB and the build created files for each target take approximately 10 MB.
EPICS documentation is available on the WWW via the EPICS home page at APS: URL http://www.aps.anl.gov/Epics
This README.html is in the base distribution file and will be available on the IOC software R3.14 EPICS WWW page which can be accessed from the APS EPICS home page.
EPICS home page at APShttp://www.aps.anl.gov/epics
Other WWW sitesAdditional information on EPICS can be found at the various other WWW links on the EPICS home page at APS.
Mailing ListsThere are five EPICS mailing lists provided by APS. See The EPICS home page for subscription instructions.
Distribution directory structure:base Root directory of the base distribution
Install directories created by the build
base/bin Installed scripts and executables in subdirs
base/lib Installed libraries in arch subdirectories
base/dbd Installed data base definitions
base/include Installed header files
base/include/os Installed os specific header files
base/templates Installed templates
README.htm Instructions for setup and building epics base
(i.e. this document)
README.WIN32 Microsoft WIN32 specific instructions
README.cxxTemplates Information about C++ templates in EPICS base
README.niCpu030 NI cpu030 specific instructions
base/startup directory - contains scripts to set environment and path
EpicsHostArch c shell script to set EPICS_HOST_ARCH env variable
EpicsHostArch.pl perl script to set EPICS_HOST_ARCH env variable
Site.profile bourne shell script to set path and env variables
Site.cshrc c shell script to set path and env variables
borland.bat WIN32 bat file to set path and env variables
win32.bat WIN32 bat file to set path and env variables
base/configure directory - contains build definitions and rules
CONFIG.CrossCommon Cross build definitions
CONFIG_ADDONS Definitions for <osclass> and DEFAULT options
CONFIG_BASE EPICS base tool and location definitions
CONFIG_BASE_VERSION Definitions for EPICS base version number
CONFIG_COMMON Definitions common to all builds
CONFIG_ENV Definitions of EPICS environment variables
CONFIG_SITE Site specific make defintions
CONFIG_SITE_ENV Site defaults for EPICS environment variables
CONFIG Includes configure files and allows variable overrides
RELEASE Location of external products such as Tornado II
RULES Includes appropriate rules file
RULES.Db Rules for database and database definition files
RULES_ARCHS Definitions and rules for building architectures
RULES_BUILD Build and install rules and definitions
RULES_DIRS Definitions and rules for building subdirectories
RULES_JAVA Definitions and rules for java jars and classes
RULES_TOP Rules specific to a <top> dir (uninstall and tar)
base/configure/os directory - contains os-arch specific definitions
CONFIG.<host>.<target> Specific host-target build definitions
CONFIG.Common.<target> Specific target definitions for all hosts
CONFIG.<host>.Common Specific host definitions for all targets
CONFIG.UnixCommon.Common Definitions for Unix hosts and all target
CONFIG.<host>.vxWorksCommon Specific host definitions for all vx targets
CONFIG_COMPAT R3.13 arch compatibility definitions
base/configure/tools directory - contains Perl scripts used for the build
cp.pl This Perl script copies an existing file
installEpics.pl Installs built files into install directories.
makeConfigAppInclude.pl Generates include,bin, lib dir definitions
makeDbDepends.pl Generates dependencies from substitution files
makeIocCdCommands.pl Generates cdCommands file for use in IOCs
makeMakefile.pl Creates a Makefile in O.<arch> dirs
makeMakefileInclude.pl Creates file to be included by Makefile
mkdir.pl Creates a directory (like Unix mkdir)
munch.pl Creates a ctdt.c file for vxWorks targets
mv.pl Renames an existing file.
replaceVAR.pl Changes CapFast VAR(xxx) to $(xxx) notation
rm.pl Quietly removes an existing file.
Unpack fileUnzip and untar the distribution file. Use WinZip on Windows systems.Set environment variableBefore you can build or use EPICS R3.14, the environment variable EPICS_HOST_ARCH must be defined. A perl script EpicsHostArch.pl in the base/startup directory has been provided to help set EPICS_HOST_ARCH. You should have EPICS_HOST_ARCH set to your host operating system followed by a dash and then your host architecture, e.g. solaris-sparc.Check path requirementsAs already mentioned, you must have the perl executable and you may need C and C++ compilers in your search path. For building base you also must have echo in your search path. For Unix host builds you also need touch, cpp, cp, rm, mv, and mkdir in your search path and /bin/chmod must exist. On some Unix systems you may also need ar and ranlib in you path.Do site-specific build configurationSite configuration
To configure EPICS, you may want to modify the default definitions in the following files:configure/CONFIG_SITE - Build choices. Specify your target archs.
configure/CONFIG_SITE_ENV - Set your environment variable definitions
configure/RELEASE - TORNADO full path location
To configure each host system, you may override the default definitions by adding a new file with override definitions into the configure/os directory. The new file should have the same name as the distribution file to be overridden except with CONFIG in the name changed to CONFIG_SITE.configure/os/CONFIG.<host>.<host> - Host build settingsTarget configuration
configure/os/CONFIG.<host>.Common - Host cross build settings
To configure each target system, you may override the default definitions by adding a new file with override definitions into the configure/os directory. The new file should have the same name as the distribution file to be overridden except with CONFIG in the name replaced by CONFIG_SITE.configure/os/CONFIG.Common.<target> - Target cross settingsR3.13 compatibility configuration
configure/os/CONFIG.<host>.<target> - Host-target settings
To configure EPICS base for building with R3.13 extensions and ioc applications , you will want to modify the default definitions in the base/config/CONFIG_SITE* files to agree with the definitions in your configure/base files.
Build EPICS baseAfter configuring the build you should be able to build EPICS base by issuing the following commands in the distribution?s root directory (base) -gnumake clean uninstallThe command "gnumake clean uninstall" will remove all files and directories generated by a previous build. The command "gnumake" will build and install everything for the configured host and targets.
It is recommended that you do a "gnumake clean uninstall" at the root directory of an EPICS directory structure before each complete rebuild to ensure that all components will be rebuilt.
You can build using a single EPICS directory structure on multiple host systems and for multiple cross target systems. The intermediate and binary files generated by the build will be created in separate system subdirectories and installed into the appropriate separate host/target install directories. EPICS executables and perl scripts are installed into the $(INSTALL_LOCATION)/bin/<arch> directories. Libraries are installed into $(INSTALL_LOCATION)/lib/<arch>. The default definition for $(INSTALL_LOCATION) is $(TOP) which is the rootdirectory in the directory structure, base. Temporary objects are stored in O.<arch> source subdirectories, This allows objects for multiple cross target architectures to be maintained at the same time. To build EPICS base for a specific host/target combination you must have the proper host/target c++ cross compiler and target header files and the base/configure/os directory must have the appropriate configure files.
A perl tool, makeBaseApp.pl is included in the distribution file. This script will create a sample application that then can be built and then executed to try out this release of base. Also, a perl script, makeBaseExt.pl, is included in the distribution file. This script will create a sample extension that can be built and executed. The makeBaseApp.pl and makeBaseExt.pl scripts are installed into the install location bin/<hostarch> directory during the base build.
Instructions for building and executing a 3.14 example application can be found in the section "Example Application" of Chapter 2, "New Features for 3.14", in the "IOC Application Developer's Guide R3.14.0alpha1" . The "Example Application" section briefly explains how to create and build an example application in a user created <top> directory. It also explains how to run the example application on a vxWorks ioc or a host system and run an example channel access client on the host system.