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From: Farid Zakaria <fmzakari@ucsc.edu>
To: gcc-help@gcc.gnu.org
Subject: How can I wrap ld-linux or execve into it?
Date: Sun, 30 Jan 2022 19:53:45 -0800	[thread overview]
Message-ID: <CAH4OOv66EL2TX08xpudjiPHLsYK6kiMO-agY2d=x7oqqxMLUBA@mail.gmail.com> (raw)

 Hi,

Not exactly sure if this is the best mailing list for this question,
please recommend me elsewhere if more appropriate.

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.

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.

Cheers
FZ

             reply	other threads:[~2022-01-31  3:53 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-01-31  3:53 Farid Zakaria [this message]
2022-01-31  8:12 ` Jonathan Wakely
2022-01-31 19:49   ` Florian Weimer

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