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POhow to symlink a shared object file (lib)
 

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  1. POhow to symlink a shared object file (lib)
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    <p>How do I symlink a lib file which is loaded as a shared library? </p> <pre><code>root@root:/usr/lib# ls -l /usr/lib/ | grep libpcap -rw-r--r-- 1 root root 351636 2010-01-04 20:15 libpcap.a lrwxrwxrwx 1 root root 14 2011-08-18 01:56 libpcap.so -&gt; libpcap.so.0.8 lrwxrwxrwx 1 root root 16 2011-08-18 01:56 libpcap.so.0.8 -&gt; libpcap.so.1.0.0 lrwxrwxrwx 1 root root 25 2013-02-19 10:01 libpcap.so.1 -&gt; /usr/lib/libpcap.so.1.0.0 -rw-r--r-- 1 root root 204128 2010-01-04 20:15 libpcap.so.1.0.0 root@root:/usr/lib# start-wfw checking wlan0 return 1 root@root:/usr/lib# /tmp/wfw: error while loading shared libraries: libpcap.so.1: cannot open shared object file: No such file or directory root@root:/usr/lib# stop-wfw Stopping () wfw: no process found </code></pre> <p>os: backtrack 5 r1, 64 | arch: x86_64</p> <p>initially, echo LD_LIBRARY_PATH, returns a blank line. </p> <p>After creating the symlink, I then ran ldconfig, and retried my executable, with no avail.</p> <p>If I set LD_LIBRARY_PATH to /usr/lib, I then get an ELF error.</p> <p>Thanks in advance.</p> <p>/edit0 @tigran,@m01:</p> <pre><code>/usr/bin/wfw-wrapper: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.27, stripped </code></pre> <p>/edit1 @tigran:</p> <pre><code>root@root:~# ldd -v /usr/lib/libpcap.so.1.0.0 linux-vdso.so.1 =&gt; (0x00007fffed5e3000) libc.so.6 =&gt; /lib/libc.so.6 (0x00007f64ebf3c000) /lib64/ld-linux-x86-64.so.2 (0x00007f64ec510000) Version information: /usr/lib/libpcap.so.1.0.0: libc.so.6 (GLIBC_2.4) =&gt; /lib/libc.so.6 libc.so.6 (GLIBC_2.3) =&gt; /lib/libc.so.6 libc.so.6 (GLIBC_2.7) =&gt; /lib/libc.so.6 libc.so.6 (GLIBC_2.3.4) =&gt; /lib/libc.so.6 libc.so.6 (GLIBC_2.2.5) =&gt; /lib/libc.so.6 /lib/libc.so.6: ld-linux-x86-64.so.2 (GLIBC_PRIVATE) =&gt; /lib64/ld-linux-x86-64.so.2 ld-linux-x86-64.so.2 (GLIBC_2.3) =&gt; /lib64/ld-linux-x86-64.so.2 </code></pre> <p>/edit2 </p> <pre><code>root@root:/usr/bin# file -L /usr/lib/libpcap.so.1 /usr/lib/libpcap.so.1: ELF 64-bit LSB shared object, x86-64, version 1 (SYSV), dynamically linked, stripped </code></pre>
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    1. COmay be your binary is 64 bit?
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    2. COIn order to test tigran's hyphothesis, you can use the `file` command: `% file \`which clang\` ` `/usr/bin/clang: Mach-O 64-bit executable x86_64`
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    3. CO@tigran thanks for your help. it is 32.
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