Cross compiling OpenSSL - openssl binary cannot be executed - c

Question

I'm trying to cross compile OpenSSL for PowerPC with the FIPS module. My build host's architecture is not PowerPC. I was able to cross compile the FIPS module just fine. However, when I run make on openssl, during the linking phase, it tries to execute certain binaries to run tests. The issue is that those binaries are produced for the target architecture and, as a result, I get the error "cannot execute binary file". Is there a way to produce executables of these tests on the host architecture rather than the target architecture? Should I be handling this process differently? Here are the following commands I used to build openssl. I replaced certain directories with DIR_HIDDEN.
export FIPS_DIRECTORY="$PWD/../../openssl-fips/tgt/linux-ppc603e/"
export cross="DIR_HIDDEN/powerpc-linux-gnu-"
make clean || exit 1
make dclean || exit 1
./Configure --prefix=$PWD/../tgt/linux-ppc603e linux-ppc fips --with-fipsdir=${FIPS_DIRECTORY}
make depend || exit 1
make CC="$FIPS_DIRECTORY/bin/fipsld" RANLIB="${cross}ranlib" AR="${cross}ar r" LD="$FIPS_DIRECTORY/bin/fipsld" FIPSLD_CC="${cross}gcc" HOSTCC="/usr/bin/gcc" || exit 1
make install || exit 1
I get the following error during the make command:
shlib_target=; if [ -n "" ]; then \
shlib_target="linux-shared"; \
elif [ -n "libcrypto" ]; then \
FIPSLD_CC="/DIR_HIDDEN/openssl/openssl-1.0.1i/../../openssl-fips/tgt/linux-ppc603e//bin/fipsld"; CC=/DIR_HIDDEN/openssl/openssl-1.0.1i/../../openssl-fips/tgt/linux-ppc603e//bin/fipsld; export CC FIPSLD_CC; \
fi; \
LIBRARIES="-L.. -lssl -L.. -lcrypto" ; \
make -f ../Makefile.shared -e \
APPNAME=openssl OBJECTS="openssl.o verify.o asn1pars.o req.o dgst.o dh.o dhparam.o enc.o passwd.o gendh.o errstr.o ca.o pkcs7.o crl2p7.o crl.o rsa.o rsautl.o dsa.o dsaparam.o ec.o ecparam.o x509.o genrsa.o gendsa.o genpkey.o s_server.o s_client.o speed.o s_time.o apps.o s_cb.o s_socket.o app_rand.o version.o sess_id.o ciphers.o nseq.o pkcs12.o pkcs8.o pkey.o pkeyparam.o pkeyutl.o spkac.o smime.o cms.o rand.o engine.o ocsp.o prime.o ts.o srp.o" \
LIBDEPS=" $LIBRARIES -ldl" \
link_app.${shlib_target}
make[2]: Entering directory `/DIR_HIDDEN/openssl/openssl-1.0.1i/apps'
( :; LIBDEPS="${LIBDEPS:--L.. -lssl -L.. -lcrypto -ldl}"; LDCMD="${LDCMD:-/DIR_HIDDEN/openssl/openssl-1.0.1i/../../openssl-fips/tgt/linux-ppc603e//bin/fipsld}"; LDFLAGS="${LDFLAGS:--DOPENSSL_THREADS -D_REENTRANT -DDSO_DLFCN -DHAVE_DLFCN_H -DB_ENDIAN -DTERMIO -O3 -Wall -DOPENSSL_BN_ASM_MONT -I/DIR_HIDDEN/openssl/openssl-1.0.1i/../../openssl-fips/tgt/linux-ppc603e//include -DSHA1_ASM -DSHA256_ASM -DAES_ASM}"; LIBPATH=`for x in $LIBDEPS; do echo $x; done | sed -e 's/^ *-L//;t' -e d | uniq`; LIBPATH=`echo $LIBPATH | sed -e 's/ /:/g'`; LD_LIBRARY_PATH=$LIBPATH:$LD_LIBRARY_PATH ${LDCMD} ${LDFLAGS} -o ${APPNAME:=openssl} openssl.o verify.o asn1pars.o req.o dgst.o dh.o dhparam.o enc.o passwd.o gendh.o errstr.o ca.o pkcs7.o crl2p7.o crl.o rsa.o rsautl.o dsa.o dsaparam.o ec.o ecparam.o x509.o genrsa.o gendsa.o genpkey.o s_server.o s_client.o speed.o s_time.o apps.o s_cb.o s_socket.o app_rand.o version.o sess_id.o ciphers.o nseq.o pkcs12.o pkcs8.o pkey.o pkeyparam.o pkeyutl.o spkac.o smime.o cms.o rand.o engine.o ocsp.o prime.o ts.o srp.o ${LIBDEPS} )
/DIR_HIDDEN/openssl/openssl-1.0.1i/../../openssl-fips/tgt/linux-ppc603e//bin/fipsld: line 185: ./openssl: cannot execute binary file
make[2]: *** [link_app.] Error 126
When invoking the make command again and again, I get the same error but for all the applications located in the /test directory of the openssl tarball. Examples include bntest, ectest, and ecdhtest.
I received a similar error when I was cross compiling the FIPS module, but I was able to resolve that by including the host compiler in the HOSTCC variable. A similar trick did not work for the openssl compilation.
Any guidance would be appreciated. Thanks!

Answer 1

I was able to modify the make command to get the process to complete. I was missing the FIPS_SIG environment variable, which points to the incore script. The make command is now:
make FIPS_SIG=$PWD/`find ../../openssl-fips/ -iname incore` CC="$FIPS_DIRECTORY/bin/fipsld" RANLIB="${cross}ranlib" AR="${cross}ar r" LD="$FIPS_DIRECTORY/bin/fipsld" FIPSLD_CC="${cross}gcc"
I still see prints to console that indicate that openssl cannot be executed, but these are warnings and don't halt the makefile. Not really sure why or how this fixed the problem, but I'll take it.