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From: Florian Weimer <fw@deneb.enyo.de>
To: "Y.D. via Libc-help" <libc-help@sourceware.org>
Subject: Re: Add a new function to dlfcn.h?
References: <CAF6YOcM5NJmrjDvcaps7d6g8QkbBzL0jPK3Nsb6TeTu0LP8FdQ@mail.gmail.com>
Date: Sun, 16 Aug 2020 14:59:03 +0200
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 (Y. D. via Libc-help's message of "Sun, 16 Aug 2020 20:52:00 +0800")
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* Y. D. via Libc-help:

> The question is, when I want to imitate the way dlopen works, I find that
> the dlopen first calls functions in dlfcn/dlopen.c, and then functions in
> elf/dl-open.c, which makes me very confused.
> If I want to add a new function in dlfcn.h, what should I do?

New dynamic linker functions should probably go into libc.so.6, and
implemented under elf/.

There is not much value in maintaining a separate libdl (but it's less
problematic than libpthread).  I expect that libdl will eventually go
away.