Experimental Physics and
Industrial Control System

"Mark Rivers" <[email protected]> · Mon, 21 Jul 2008 21:55:20 -0500

Janet,

Thanks for the suggestions.  I am actually using EPICS R3.14.8.2.

Using your suggestions I was able to build for 64-bits.  However,when trying to build for 32-bits I get the following:

/usr/bin/g++ -o libCom.so.3.14 -shared -fPIC      -m32     -Wl,-rpath,/usr/local/epics/base-3.14.8.2/lib/linux-x86         bucketLib.o epicsRingPointer.o epicsRingBytes.o postfix.o calcPerform.o cvtFast.o resourceLib.o epicsOnce.o epicsSingletonMutex.o dbmf.o ellLib.o envSubr.o envData.o errlog.o errSymLib.o errSymTbl.o fdmgr.o fdManager.o freeListLib.o gpHashLib.o iocLog.o logClient.o macCore.o macEnv.o macUtil.o aToIPAddr.o adjustment.o cantProceed.o epicsConvert.o epicsExit.o epicsStdlib.o epicsString.o truncateFile.o ipAddrToAsciiAsynchronous.o epicsThread.o epicsMutex.o epicsEvent.o epicsTime.o epicsMessageQueue.o osdSock.o osdSockAddrReuse.o osiSock.o systemCallIntMech.o epicsSocketConvertErrnoToString.o osdAssert.o osdFindSymbol.o osdInterrupt.o osdPoolStatus.o osdSignal.o osdEnv.o epicsReadline.o epicsTempFile.o epicsStdio.o osdStdio.o osdThread.o osdMutex.o osdEvent.o osdTime.o osdProcess.o osdNetIntf.o osdMessageQueue.o taskwd.o epicsTimer.o timer.o timerQueue.o ti!
 merQueueActive.o timerQueueActiveMgr.o timerQueuePassive.o tsDefs.o     -lpthread   -lreadline -lcurses -lm -lrt -lgcc
/usr/bin/ld: skipping incompatible /usr/lib64/libreadline.so when searching for -lreadline
/usr/bin/ld: skipping incompatible /usr/lib64/libreadline.a when searching for -lreadline

Why is it looking for libreadline in the lib64 directory, and how do I fix this?

Thanks,
Mark

________________________________

From: Janet Anderson [mailto:[email protected]]
Sent: Fri 7/18/2008 9:14 AM
To: Mark Rivers
Cc: EPICS tech-talk
Subject: Re: Building 32-bit EPICS binaries on 64-bit Linux systems

Mark,

For R3.14.9 add the following 2 lines to  CONFIG.Common.linux-x86

ARCH_DEP_CFLAGS += -m32
ARCH_DEP_LDFLAGS += -m32

Also you could add the following 2 lines to  CONFIG.Common.linux-x86_64

ARCH_DEP_CFLAGS += -m64
ARCH_DEP_LDFLAGS += -m64

Janet

Mark Rivers wrote: 

	Folks,

	I want to build EPICS in 32-bit mode on a 64-bit Linux machine.  I had assumed that all I needed to do was to define EPICS_HOST_ARCH to be linux-x86, rather than linux-x86_64.  But when I do this it creates the expected directories and binaries, e.g. bin/linux-x86/caRepeater, etc. but the binaries appear to be 64-bit.  Running "file" on them reports them at ELF 64-bit files.  My IOC is crashing, and I suspect it is because it is built as a 64-bit application.   How do I force it to be built as a 32-bit application?  This is EPICS R3.14.9.

	Thanks,

	Mark

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System