RE: EPICS BASE-3.14.12.3 32-bit Binaries on 64-bit host Machine

[Mark Rivers <rivers@cars.uchicago.edu>]

Are you sure you have installed both the 64-bit and 32-bit versions of the system library libstdc++.so?

 

Here are the files on my Fedora system:

 

7233436    0 lrwxrwxrwx   1 root     root           37 Apr 10  2012 /usr/lib/gcc/x86_64-redhat-linux/4.6.3/libstdc++.so -> ../../../../lib64/libstdc++.so.6.0.16

7233434    0 lrwxrwxrwx   1 root     root           31 Apr 10  2012 /usr/lib/gcc/x86_64-redhat-linux/4.6.3/32/libstdc++.so -> ../../../../libstdc++.so.6.0.16

 

Note that there are both 64-bit and 32-bit versions of that library.

 

Do you find both 64-bit and 32-bit versions of libstdc++.so on your system?

 

Mark

 

 

From: tech-talk-bounces@aps.anl.gov [mailto:tech-talk-bounces@aps.anl.gov] On Behalf Of Cusick, Martin-Lee
Sent: Wednesday, December 09, 2015 9:00 AM
To: tech-talk@aps.anl.gov
Subject: EPICS BASE-3.14.12.3 32-bit Binaries on 64-bit host Machine

 

OFFICIAL USE ONLY / À USAGE EXCLUSIF

Hello,

 

I will start will giving some of the environment details:

 

Host Machine:

 

Ubuntu 12.04 (3.13.0-71-generic kernel) x86_64

 

I am building IOC’s for 64 and 32-bit machines; I am also cross compiling for ARM (Raspberry Pi), with crosstools-ng.

 

The build is successful for 64 bit binaries and the 32-bit cross compile, but I keep getting an error for x86:

 

/usr/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-linux-gnu/4.6/libstdc++.so when searching for -lstdc++

/usr/bin/ld: skipping incompatible /usr/lib/gcc/x86_64-linux-gnu/4.6/libstdc++.a when searching for -lstdc++

/usr/bin/ld: cannot find -lstdc++

collect2: ld returned 1 exit status

make[3]: *** [libCom.so.3.14] Error 1

make[3]: Leaving directory `/usr/local/epics.bak/base-3.14.12.3/src/libCom/O.linux-x86'

make[2]: *** [install.linux-x86] Error 2

make[2]: Leaving directory `/usr/local/epics.bak/base-3.14.12.3/src/libCom'

make[1]: *** [libCom.install] Error 2

make[1]: Leaving directory `/usr/local/epics.bak/base-3.14.12.3/src'

make: *** [src.install] Error 2

 

I have the gcc-multilib package, and lib32, and I followed this advice:

 

base/configure/os/CONFIG_SITE.linux-x86.Common:

 

# T.S, 2006/09/05

# add -m32 so we create 32-bit code when

# executing on 64-bit machine with EPICS_HOST_ARCH=linux-x86

ARCH_DEP_CFLAGS+=-m32

ARCH_DEP_CXXFLAGS+=-m32

ARCH_DEP_LDFLAGS+=-m32

 

Thanks you in advance for your help,

 

Lee