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ldd (Unix)
open-in-new
<h2 id="security">Security</h2> <p>ldd is a <a href="/facts/Shell_script/NE7YvsBD">shell script</a> that executes the program given as argument, and shouldn't be used with untrusted binaries. The ldd manual page suggests to use the following command using the <a href="/facts/Objdump/jVf0yBlq">objdump</a> and <a href="/facts/Grep/PdGQeFfD">grep</a> utilities as alternative:<a class="footnote-ref" id="fnref:3" href="#fn:3"><sup>3</sup></a> </p> user@home ~/ $ objdump -p /path/program | grep NEEDED <h2 id="usage-examples">Usage examples</h2> user@home ~/ $ ldd /usr/bin/mp3blaster linux-vdso.so.1 => (0x00007fff8fdff000) libsidplay.so.1 => /usr/lib/libsidplay.so.1 (0x00007f4ea98ec000) libvorbisfile.so.3 => /usr/lib/libvorbisfile.so.3 (0x00007f4ea96e4000) libvorbis.so.0 => /usr/lib/libvorbis.so.0 (0x00007f4ea94b6000) libncurses.so.5 => /lib/libncurses.so.5 (0x00007f4ea9273000) libpthread.so.0 => /lib/libpthread.so.0 (0x00007f4ea9056000) libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0x00007f4ea8d41000) libm.so.6 => /lib/libm.so.6 (0x00007f4ea8abe000) libgcc_s.so.1 => /lib/libgcc_s.so.1 (0x00007f4ea88a7000) libc.so.6 => /lib/libc.so.6 (0x00007f4ea8523000) libogg.so.0 => /usr/lib/libogg.so.0 (0x00007f4ea831c000) libdl.so.2 => /lib/libdl.so.2 (0x00007f4ea8118000) /lib64/ld-linux-x86-64.so.2 (0x00007f4ea9b59000) user@home ~/ $ ldd /usr/lib/i386-linux-gnu/libstdc++.so.6.0.20 linux-gate.so.1 (0xb7733000) libm.so.6 => /lib/i386-linux-gnu/i686/cmov/libm.so.6 (0xb75da000) libc.so.6 => /lib/i386-linux-gnu/i686/cmov/libc.so.6 (0xb742f000) /lib/ld-linux.so.2 (0xb7734000) libgcc_s.so.1 => /lib/i386-linux-gnu/libgcc_s.so.1 (0xb7411000) <h2 id="references">References</h2> <ol> <li id="fn:1"><p>"ldd(1) – Linux man page". die.net. Retrieved December 28, 2011. <a href="http://linux.die.net/man/1/ldd" target="_blank">http://linux.die.net/man/1/ldd</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> <li id="fn:2"><p>"ldd Source Code". stuff.mit.edu. Retrieved March 26, 2014. <a href="http://stuff.mit.edu/afs/sipb/project/phone-project/bin/arm-linux-ldd" target="_blank">http://stuff.mit.edu/afs/sipb/project/phone-project/bin/arm-linux-ldd</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li> <li id="fn:3"><p>"ldd(1): print shared library dependencies - Linux man page". linux.die.net. Retrieved 2020-11-18. <a href="https://linux.die.net/man/1/ldd" target="_blank">https://linux.die.net/man/1/ldd</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li> </ol>