ldd doesn't work on dynamically linked binary

Question

I have a binary that uses a bunch of .so files.

bash-3.00$ file foo
foo: ELF 32-bit LSB executable, Intel 80386, version 1 (SYSV), for GNU/Linux 2.6.21, dyna         


        

Answer 1

Like one of the comment says - you tried using ldd on 64 bit system to inspect a 32-bit ELF object. ldd uses the standard dynamic linker to trace the dependencies, so if your platform doesn't have the linker required by the ELF object being inspected, ldd fails. Readelf and objdump are more robust in these situations.