Difference between revisions of "Replacement for command ldd on Linux"

Revision as of 10:32, 28 February 2025

Replacement for command ldd on Linux

Are you looking to install the ldd command on your Linux system but it isn't available?

This is typical when you are using Yocto Project on the target board.

Alternative Method to Check Library Dependencies in Linux While the ldd command is a powerful tool for examining library dependencies, there are alternative methods that can provide similar information. One such method is using the objdump command.

# LD_TRACE_LOADED_OBJECTS=1 /lib/ld-linux-armhf.so.3  /usr/bin/gpg
   
   linux-vdso.so.1 (0xbef3e000)
   libz.so.1 => /lib/libz.so.1 (0xb6f70000)
   libbz2.so.1 => /usr/lib/libbz2.so.1 (0xb6f50000)
   libgcrypt.so.20 => /usr/lib/libgcrypt.so.20 (0xb6ea0000)
   libreadline.so.8 => /usr/lib/libreadline.so.8 (0xb6e50000)
   libassuan.so.0 => /usr/lib/libassuan.so.0 (0xb6e30000)
   libnpth.so.0 => /usr/lib/libnpth.so.0 (0xb6e10000)
   libgpg-error.so.0 => /usr/lib/libgpg-error.so.0 (0xb6de0000)
   libc.so.6 => /lib/libc.so.6 (0xb6cc0000)
   libcap.so.2 => /lib/libcap.so.2 (0xb6ca0000)
   libtinfo.so.5 => /lib/libtinfo.so.5 (0xb6c70000)
   /lib/ld-linux-armhf.so.3 (0xb6f98000)

or

root@intel-corei7-64:~# LD_TRACE_LOADED_OBJECTS=1 /lib/ld-linux-x86-64.so.2 /usr/bin/aplay
  
   linux-vdso.so.1 (0x00007ffc005c6000)
   libasound.so.2 => /usr/lib/libasound.so.2 (0x00007f0a498fe000)
   libc.so.6 => /lib/libc.so.6 (0x00007f0a496fe000)
   libm.so.6 => /lib/libm.so.6 (0x00007f0a49620000)
   libpthread.so.0 => /lib/libpthread.so.0 (0x00007f0a4961b000)
   librt.so.1 => /lib/librt.so.1 (0x00007f0a49616000)
   /lib/ld-linux-x86-64.so.2 (0x00007f0a49a23000)

or using the cross compiler objdump command

root@intel-corei7-64:~# aarch64-poky-linux-objdump -x nInvaders | grep NEEDED

   NEEDED               libncurses.so.5
   NEEDED               libtinfo.so.5
   NEEDED               libc.so.6
   NEEDED               ld-linux-aarch64.so.1