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From: Farid Zakaria <fmzakari@ucsc.edu>
Date: Mon, 31 Jan 2022 12:10:10 -0800
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Subject: How can I wrap ld-linux or execve into it?
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Hi,

I am looking to perform some functionality before the dynamic linker
(linux-ld/ld.so) is invoked.

My naive assessment was that I would be able to set in the PT_INTERP
section of a binary, my *static binary*, which will then execve into
the dynamic linker after doing some precanned actions.

Unfortunately, trying this has resulted in some SIGSEGV...

I came across https://github.com/Mic92/nix-ld which seems to do
something similar, but I was curious why it has to do a lot more to
achieve the same effect with a jump.

I have also been pointed to LD_AUDIT however I am also interested in
having it agnostic to libc (glibc vs. musl)

Thank you for any tips, guidance or links you can provide.
FZ