pldd doesn't work

[cedric-vincent]

How to reproduce:

$ proot sh -c 'true; pldd $$'

Current output:

pldd: cannot read program header

Expected output:

1712:   /bin/bash
linux-vdso.so.1
/lib64/libtermcap.so.2
/lib64/libdl.so.2
/lib64/libc.so.6
/lib64/ld-linux-x86-64.so.2