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From: Florian Weimer <fweimer@redhat.com>
To: Alan Modra via Libc-alpha <libc-alpha@sourceware.org>
Cc: Alan Modra <amodra@gmail.com>
Subject: Re: Use __ehdr_start rather than _begin in _dl_start_final
References: <Ymk4dQAkaGYfZWWT@squeak.grove.modra.org>
Date: Wed, 27 Apr 2022 18:08:35 +0200
In-Reply-To: <Ymk4dQAkaGYfZWWT@squeak.grove.modra.org> (Alan Modra via
 Libc-alpha's message of "Wed, 27 Apr 2022 22:05:01 +0930")
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* Alan Modra via Libc-alpha:

> __ehdr_start is already used in rltld.c:dl_main, and can serve the
> same purpose as _begin.  Besides tidying the code, using linker
> defined section relative symbols rather than "-defsym _begin=0" better
> reflects the intent of _dl_start_final use of _begin, which is to
> refer to the load address of ld.so rather than absolute address zero.

Looks reasonable.  I verified it still builds everywhere.

Thanks,
Florian