Date: Sun, 5 Jan 1997 23:45:25 +0100 From: roberto@keltia.freenix.fr (Ollivier Robert) To: freebsd-hackers@FreeBSD.ORG (FreeBSD Hackers' list) Subject: ld with -R weirdness Message-ID: <Mutt.19970105234525.roberto@keltia.freenix.fr>
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I'm the maintainer of the Perl5 hints file for freebsd and I tried to
compile it with a shared libperl.so. I use -Wl,-R to gcc in order to give
the linker to put the shared lib directory inside the executable.
In suidperl case, the command line given to gcc (then ld) is the following:
cc -L/usr/local/lib -Wl,-R,/usr/local/lib/perl5/i386-freebsd/5.00319/CORE
-o suidperl perlmain.o sperl.o lib/auto/DynaLoader/DynaLoader.a
libperl.so.3.19 `cat ext.libs` -lm -lc -lcrypt
The problem is that afterward, ld.so is NOT able to find libperl.so.3.19...
608 [23:40] roberto@keltia:/build/perl5.003_10> ( cd lib ; ldd ../suidperl)
../suidperl:
libperl.so.3.19 (0x0)
-lm.2 => /usr/lib/libm.so.2.0 (0x8025000)
-lc.3 => /usr/lib/libc.so.3.0 (0x803c000)
-lcrypt.2 => /usr/lib/libcrypt.so.2.0 (0x80ad000)
Even WITH LD_LIBRARY_PATH defined...
612 [23:44] roberto@keltia:/build/perl5.003_19> echo $LD_LIBRARY_PATH
/work/build/perl5.003_19
When I patch the Makefile to have
cc -L/usr/local/lib -Wl,-R,/usr/local/lib/perl5/i386-freebsd/5.00319/CORE
-o suidperl perlmain.o sperl.o lib/auto/DynaLoader/DynaLoader.a
-lperl `cat ext.libs` -lm -lc -lcrypt
It works !
Looking inside the suidperl executable, I find the following weird strings:
o/usr/local/lib/perl5/i386-freebsd/5.00319/CORE
libperl.so.3.19
crypt
Where does the 'o' before the path come from ?
--
Ollivier ROBERT -=- The daemon is FREE! -=- roberto@keltia.freenix.fr
FreeBSD keltia.freenix.fr 3.0-CURRENT #33: Sat Dec 21 12:57:17 CET 1996
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