Linking problem shared objects SuSE10.2

Accelerated Computing HPC Compilers Legacy PGI Compilers
1

I’m stuck migrating a larger software project compiled with pgCC from a SUSE 9.3 Linux build platform
to a SUSE 10.2 Linux build platform.

Using the following compiler and linker versions,

pgCC --version
pgCC 7.1-5 64-bit target on x86-64 Linux -tp k8-64e

/usr/bin/ld --version
GNU ld version 2.15.94.0.2.2 20041220 (SuSE Linux)

the old build system pulls through:

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[… snip…]

pgCC -c -tp x64 -O3 -fPIC -mcmodel=small -Minline=levels:10,size:1000 -fastsse -I…/…/include -I/usr/local/rsi/idl/external/include/ shared_memory.cpp -o shared_memory.o
pgCC -c -tp x64 -O3 -fPIC -mcmodel=small -Minline=levels:10,size:1000 -fastsse -I…/…/include -I/usr/local/rsi/idl/external/include/ OpenMP_controls.cpp -o OpenMP_controls.o
ar -rs libsmtk.a shared_memory.o OpenMP_controls.o
ar: creating libsmtk.a
pgCC -tp x64 -mp -O3 -Mipa=fast -fPIC -mcmodel=small -shared -L…/…/lib -L/usr/local/pgi/linux86-64/7.1-5/lib -Wl,–allow-multiple-definition shared_memory.o -lpgftnrtl -lm -o shared_memory.so
IPA inhibited: no main routine
pgCC -tp x64 -mp -O3 -Mipa=fast -fPIC -mcmodel=small -shared -L…/…/lib -L/usr/local/pgi/linux86-64/7.1-5/lib -Wl,–allow-multiple-definition OpenMP_controls.o -lpgftnrtl -lm -o OpenMP_controls.so

[… snip…]

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While the new system using the following compiler versions:

pgCC --version
pgCC 7.1-5 64-bit target on x86-64 Linux -tp core2-64

/usr/bin/ld --version
GNU ld version 2.17.50.0.5 20060927 (SUSE Linux)

Does not link:

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[… snip…]

pgCC -c -tp x64 -O3 -fPIC -mcmodel=small -Minline=levels:10,size:1000 -fastsse -I…/…/include -I/usr/local/rsi/idl/external/include/ shared_memory.cpp -o shared_memory.o
pgCC -c -tp x64 -O3 -fPIC -mcmodel=small -Minline=levels:10,size:1000 -fastsse -I…/…/include -I/usr/local/rsi/idl/external/include/ OpenMP_controls.cpp -o OpenMP_controls.o
ar -rs libsmtk.a shared_memory.o OpenMP_controls.o
ar: creating libsmtk.a
pgCC -tp x64 -mp -O3 -Mipa=fast -fPIC -mcmodel=small -shared -L…/…/lib -L/usr/local/pgi/linux86-64/7.1-5/lib -Wl,–allow-multiple-definition shared_memory.o -lpgftnrtl -lm -o shared_memory.so
IPA inhibited: no main routine
/usr/bin/ld: /usr/local/pgi/linux86-64/7.1-5/lib/libstd.a(collate.o): relocation R_X86_64_32S against `a local symbol’ can not be used when making a shared object; recompile with -fPIC
/usr/local/pgi/linux86-64/7.1-5/lib/libstd.a: could not read symbols: Bad value
child process exit status 1: /usr/bin/ld
make: *** [shared_memory.so] Error 2

[… snip…]

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Note that the build compiled on the old platform flawlessly executes on the new platform.
Is this a linker problem specific to SUSE 10.2?

Thanks for any hints.

2

It looks like you are specifying L/usr/local/pgi/linux86-64/7.1-5/lib and are thus pulling info out of libstd.a. Probably should be pointing to the /usr/local/pgi/linux86-64/7.1-5/libso directory where libstd.so is. It could be that on your other system someone moved some of the .so’s from libso over?

3

Just in case someone runs into similar problems, here a workaround to my problem.

It looks like you are specifying L/usr/local/pgi/linux86-64/7.1-5/lib and are thus pulling info out of libstd.a. Probably should be pointing to the /usr/local/pgi/linux86-64/7.1-5/libso directory where libstd.so is.

Yes, I have tried meanwhile also this (and many many other things), but to no avail.

Since I’m running out of ideas how to make this library-loader/linker behave and have to move on, I hardcoded the .so path during linking:

CLINKLIBS = -Wl,-Bstatic -lacml_mv -lacml -Wl,-Bdynamic -lm -pgf90libs -Wl,–rpath=/usr/local/pgi_7.1.5/linux86-64/7.1-5/libso

Not nice, but does the trick.