Re: DynaLoader.a: could not read symbols: Bad value - Can't build on vanilla Red Hat
William A. Rowe, Jr. wrote: Bianca Taylor wrote: /bin/ld: /tmp/unisolve/perl/lib/5.8.8/x86_64-linux/auto/DynaLoader/DynaLoader.a(DynaLoader.o): relocation R_X86_64_32 against `a local symbol' can not be used when making a shared object; recompile with -fPIC /tmp/unisolve/perl/lib/5.8.8/x86_64-linux/auto/DynaLoader/DynaLoader.a: could not read symbols: Bad value collect2: ld returned 1 exit status make[1]: *** [mod_perl.so] Error 1 make[1]: Leaving directory `/home/unisolve/mod_perl-2.0.4/src/modules/perl' make: *** [modperl_lib] Error 2 Perl itself makes several bad calls w.r.t. CFLAGS, LDFLAGS, SHLDFLAGS etc, that are propagated also into config_heavy.pl. On several platforms I've noted that -fPIC is ignored, on others I've noted that specific flag values are dropped for the building of shared libs. It's a matter of working backwards from modperl's build into the config script of perl to determine where perl went wrong. The solution should be as easy as recompiling perl with -fPIC. Here's a link to the list archives where this has been discussed in detail. http://www.gossamer-threads.com/lists/engine?list=modperl;do=search_results;search_forum=forum_8;search_string=fpic;search_type=ANDsb=post_time
Re: DynaLoader.a: could not read symbols: Bad value - Can't build on vanilla Red Hat
Fred Moyer wrote: William A. Rowe, Jr. wrote: Bianca Taylor wrote: /bin/ld: /tmp/unisolve/perl/lib/5.8.8/x86_64-linux/auto/DynaLoader/DynaLoader.a(DynaLoader.o): relocation R_X86_64_32 against `a local symbol' can not be used when making a shared object; recompile with -fPIC /tmp/unisolve/perl/lib/5.8.8/x86_64-linux/auto/DynaLoader/DynaLoader.a: could not read symbols: Bad value collect2: ld returned 1 exit status make[1]: *** [mod_perl.so] Error 1 make[1]: Leaving directory `/home/unisolve/mod_perl-2.0.4/src/modules/perl' make: *** [modperl_lib] Error 2 Perl itself makes several bad calls w.r.t. CFLAGS, LDFLAGS, SHLDFLAGS etc, that are propagated also into config_heavy.pl. On several platforms I've noted that -fPIC is ignored, on others I've noted that specific flag values are dropped for the building of shared libs. It's a matter of working backwards from modperl's build into the config script of perl to determine where perl went wrong. The solution should be as easy as recompiling perl with -fPIC. Here's a link to the list archives where this has been discussed in detail. http://www.gossamer-threads.com/lists/engine?list=modperl;do=search_results;search_forum=forum_8;search_string=fpic;search_type=ANDsb=post_time Of course, that's what it says above. My point is, I've had perl yank -fPIC from my demands on the build on PPC arch. Mighty kind of it, eh?
Re: DynaLoader.a: could not read symbols: Bad value - Can't build on vanilla Red Hat
Hello again, ... The solution should be as easy as recompiling perl with -fPIC. Here's a link to the list archives where this has been discussed in detail. http://www.gossamer-threads.com/lists/engine?list=modperl;do=search_results ;search_forum=forum_8;search_string=fpic;search_type=ANDsb=post_time Of course, that's what it says above. My point is, I've had perl yank -fPIC from my demands on the build on PPC arch. Mighty kind of it, eh? We attempted to compile perl with: ccflags='-fPIC' sh Configure -de (yes, make clean first) but unfortunately to no avail. Like you said, Perl didn't seem to care -fPIC is not used when Perl is built. Next, we changed config.sh from -fpic to -fPIC and did the make again. In this case Perl did use -fPIC but we get the same error, mod_perl is not happy with the DynaLoader. Also tried to clean everything out with 'make cleandist' first and run ./Configure with -Doptimize='-g' to really make sure the -fPIC is passed in. I definitely see the -fPIC option, for example: ...cc -c -DDEBUGGING -fno-strict-aliasing -pipe -Wdeclaration-after-statement -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -I/usr/include/gdbm -g -DVERSION=\0.94\ -DXS_VERSION=\0.94\ -fPIC -I../../.. shared.c... Everything seems happy until the make step in mod_perl, where I still get: ..lib/perl5/5.8.8/x86_64-linux/CORE -lperl -lnsl -ldl -lm -lcrypt -lutil -lc \ -o mod_perl.so /bin/ld: /usr/local/lib/perl5/5.8.8/x86_64-linux/auto/DynaLoader/DynaLoader.a(DynaLoa der.o): relocation R_X86_64_32 against `a local symbol' can not be used when making a shared object; recompile with -fPIC /usr/local/lib/perl5/5.8.8/x86_64-linux/auto/DynaLoader/DynaLoader.a: could not read symbols: Bad value collect2: ld returned 1 exit status... So at this point, I am confident that I compile Perl with -fPIC. I read all the ducumentation you pointed me to and that I could find, but it keeps coming back to the same error. Thanks again Bianca -- Unisolve Pty Ltd - Melbourne Australia
Re: DynaLoader.a: could not read symbols: Bad value - Can't build on vanilla Red Hat
Bianca Taylor wrote: So at this point, I am confident that I compile Perl with -fPIC. I read all the ducumentation you pointed me to and that I could find, but it keeps coming back to the same error. You aren't... please review your shared cc flags from perl. The flag you looked at was not a shlib cflag, but a program cflag.
Re: DynaLoader.a: could not read symbols: Bad value - Can't build on vanilla Red Hat
Bianca Taylor wrote: So at this point, I am confident that I compile Perl with -fPIC. I read all the ducumentation you pointed me to and that I could find, but it keeps coming back to the same error. On Wednesday 17 September 2008 12:08, William A. Rowe, Jr. wrote: You aren't... please review your shared cc flags from perl. The flag you looked at was not a shlib cflag, but a program cflag. Here the whole snip for attrs.c whilst 'make' cc -c -DDEBUGGING -fno-strict-aliasing -pipe -Wdeclaration-after-statement -I/usr/local/include -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -I/usr/include/gdbm -g -DVERSION=\1.02\ -DXS_VERSION=\1.02\ -fPIC -I../.. attrs.c Running Mkbootstrap for attrs () chmod 644 attrs.bs rm -f ../../lib/auto/attrs/attrs.so cc -shared -L/usr/local/lib attrs.o -o ../../lib/auto/attrs/attrs.so \ \ chmod 755 ../../lib/auto/attrs/attrs.so cp attrs.bs ../../lib/auto/attrs/attrs.bs chmod 644 ../../lib/auto/attrs/attrs.bs make[1]: Leaving directory `/home/unisolve/perl-5.8.8/ext/attrs' ok, so how do I do it? where do I go wrong? Thanks again
Re: DynaLoader.a: could not read symbols: Bad value - Can't build on vanilla Red Hat
On Wednesday 17 September 2008 12:08, you wrote: Bianca Taylor wrote: So at this point, I am confident that I compile Perl with -fPIC. I read all the ducumentation you pointed me to and that I could find, but it keeps coming back to the same error. You aren't... please review your shared cc flags from perl. The flag you looked at was not a shlib cflag, but a program cflag. Ok I see now what you mean. I added -fPIC to the definitions of ccflags and cppflags in config.sh and now I can successfully build mod_perl. Since the makefile is being build incorrectly by the Perl installation process, who can I report this bug to? Kind regards Bianca -- Unisolve Pty Ltd - Melbourne Australia
