You have to compile with options -fpic or -fPIC. ---- Lev Assinovsky Aelita Software Corporation O&S InTrust Framework Division, Team Leader ICQ# 165072909 > -----Original Message----- > From: zakaria kojo [mailto:zakaria_kojo@xxxxxxxxx] > Sent: Monday, October 27, 2003 6:09 PM > To: gcc-help@xxxxxxxxxxx > Subject: g++ symbol problem in Red Hat Linux 8.0 > > > > I am having problems in Red Hat Linux 8.0 in building > shared files. Could someone help. > > I never face the same problem with Red Hat Linux 7.3 > Below are the details of the problem. > > Zakaria Aygula > > > [shell]$ g++ -v > Reading specs from > /usr/lib/gcc-lib/i386-redhat-linux/3.2/specs > Configured with: ../configure --prefix=/usr > --mandir=/usr/share/man --infodir=/u > sr/share/info --enable-shared > --enable-threads=posix --disable-checking > --host=i386-redhat-linux --with-system > -zlib --enable-__cxa_atexit > Thread model: posix > gcc version 3.2 20020903 (Red Hat Linux 8.0 3.2-7) > > [shell]$g++ sum_array.cc -c > > Where sum_array.cc is the code below. > > sum_array.cc > //####################################### > float sum_array(int argc, void *argv[]) > { > float *fp, s=0.0; int n; > for( n= *(int *)argv[1], fp=(float *)argv[0]; n--;) > s += *fp++; > return (s); > } > //########################################## > > now the shared file is > > [shell]$g++ -shared -o example.so sum_array.o > > [shell]$ nm example.so > ................................ > ................................ > 00000514 T _init > 000017bc d __JCR_END__ > 000017bc d __JCR_LIST__ > w _Jv_RegisterClasses > 000016cc d p.0 > 00000628 T _Z9sum_arrayiPPv <======= Here is the > diference with Red Hat 7.3 g++ compiler, and the > shared file does not execute in Red Hat 8.0. > > The last symbol is different from Red Hat Linux 7.3 as > shown below. > [shell]$g++ -v > Reading specs from > /usr/lib/gcc-lib/i386-redhat-linux/2.96/specs > gcc version 2.96 20000731 (Red Hat Linux 7.3 2.96-110) > > > Which gives > > 00000680 t gcc2_compiled. > 00000670 t init_dummy > 00000710 t init_dummy > 00001858 b object.2 > 00001744 d p.0 > 00000680 T sum_array__FiPPv <======= Here is the > difference with Red Hat Linux 8.0 g++ compiler > > And it is the correct one. Can someone out there help > how to compile corectly on Red Hat Linux 8.0 > > > > > > > __________________________________ > Do you Yahoo!? > Exclusive Video Premiere - Britney Spears > http://launch.yahoo.com/promos/britneyspears/ >
