Wuhai’s Weblog

July 2, 2008

Debug library loading issue

Filed under: Uncategorized — wuhai @ 4:40 am
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[root@erd-tt-re3 etc]# LD_DEBUG=libs /usr/local/bin/memcached -v
     13133:     find library=libevent-1.4.so.2 [0]; searching
     13133:      search cache=/etc/ld.so.cache
     13133:      search path=/lib/tls/i686/sse2:/lib/tls/i686:/lib/tls/sse2:/lib/tls:/lib/i686/sse2:/lib/i686:/lib/sse2:/lib:
/usr/lib/tls/i686/sse2:/usr/lib/tls/i686:/usr/lib/tls/sse2:/usr/lib/tls:/usr/lib/i686/sse2:/usr/lib/i686:
/usr/lib/sse2:/usr/lib          (system search path)
     13133:       trying file=/lib/tls/i686/sse2/libevent-1.4.so.2
     13133:       trying file=/lib/tls/i686/libevent-1.4.so.2
     13133:       trying file=/lib/tls/sse2/libevent-1.4.so.2
     13133:       trying file=/lib/tls/libevent-1.4.so.2
     13133:       trying file=/lib/i686/sse2/libevent-1.4.so.2
     13133:       trying file=/lib/i686/libevent-1.4.so.2
     13133:       trying file=/lib/sse2/libevent-1.4.so.2
     13133:       trying file=/lib/libevent-1.4.so.2
     13133:       trying file=/usr/lib/tls/i686/sse2/libevent-1.4.so.2
     13133:       trying file=/usr/lib/tls/i686/libevent-1.4.so.2
     13133:       trying file=/usr/lib/tls/sse2/libevent-1.4.so.2
     13133:       trying file=/usr/lib/tls/libevent-1.4.so.2
     13133:       trying file=/usr/lib/i686/sse2/libevent-1.4.so.2
     13133:       trying file=/usr/lib/i686/libevent-1.4.so.2
     13133:       trying file=/usr/lib/sse2/libevent-1.4.so.2
     13133:       trying file=/usr/lib/libevent-1.4.so.2
     13133:
/usr/local/bin/memcached: error while loading shared libraries: libevent-1.4.so.2: cannot open shared object file: No such file or directory
[root@erd-tt-re3 etc]#

[root@erd-tt-re3 ~]# readelf -d /usr/local/lib/python2.5/lib-dynload/_hashlib.so | grep NEEDED
 0×00000001 (NEEDED)                     Shared library: [libssl.so.4]
 0×00000001 (NEEDED)                     Shared library: [libcrypto.so.4]
 0×00000001 (NEEDED)                     Shared library: [libpthread.so.0]
 0×00000001 (NEEDED)                     Shared library: [libc.so.6]

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