[PATCH 0/1] __libc_start_main() now uses auxv to obtain phdr's address [BZ #29864]

[Florian Weimer]

* Yago Gutiérrez via Libc-alpha:

> From bf2371ce732194f652719aff4af0f9021f9cbd90 Mon Sep 17 00:00:00 2001
> From: =?UTF-8?q?Yago=20Guti=C3=A9rrez?= <yagogl@protonmail.com>
> Date: Wed, 7 Dec 2022 12:49:22 +0100
> Subject: [PATCH 1/1] __libc_start_main() now uses auxv to obtain phdr's
>  address [BZ #29864]
> To: libc-alpha@sourceware.org

This needs a much more elaborate commit message.

I don't quite get why you need to add this to _rtld_global.  This is
only used by the static startup code.

This looks like it is a fix for the refactoring in:

commit 73fc4e28b9464f0e13edc719a5372839970e7ddb
Author: Florian Weimer <fweimer@redhat.com>
Date:   Mon Feb 28 11:50:41 2022 +0100

    Linux: Consolidate auxiliary vector parsing (redo)
    
    And optimize it slightly.
    
    This is commit 8c8510ab2790039e58995ef3a22309582413d3ff revised.
    
    In _dl_aux_init in elf/dl-support.c, use an explicit loop
    and -fno-tree-loop-distribute-patterns to avoid memset.
    
    Reviewed-by: Szabolcs Nagy <szabolcs.nagy@arm.com>

What are the actual failures you see?

Thanks,
Florian