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Message-ID: <Pine.BSM.4.64L.2404061513110.25918@herc.mirbsd.org>
Date: Sat, 6 Apr 2024 15:18:42 +0000 (UTC)
From: Thorsten Glaser <tg@...bsd.de>
cc: musl@...ts.openwall.com, 1068350@...s.debian.org,
        debian-glibc@...ts.debian.org, doko@...ian.org
Subject: Re: Re: Bug#1068350: musl: miscompiles (runtime problems) on riscv64 and s390x with static-pie → seems to be a toolchain bug
 after all, it does too hit glibc

Rich Felker dixit:

>Is there anything weird about how these objects were declared that
>might have caused ld not to resolve them statically like it should? It
>seems odd that these data symbols, but not any other ones, would be
>left as symbolic relocations.

I don’t think so?

In <Pine.BSM.4.64L.2404042102310.18654@...c.mirbsd.org> I already
posted the short version; the actual source is (mirrored):

The initcoms array is here:
https://github.com/MirBSD/mksh/blob/b0219da8e6dfc7b16e923e220dc6933c5ed9b326/main.c#L77

Tdr is defined at:
https://github.com/MirBSD/mksh/blob/b0219da8e6dfc7b16e923e220dc6933c5ed9b326/sh.h#L3055

The u_ops array is declared a few lines above that and defined at:
https://github.com/MirBSD/mksh/blob/b0219da8e6dfc7b16e923e220dc6933c5ed9b326/funcs.c#L160

initvsn is defined at…
https://github.com/MirBSD/mksh/blob/b0219da8e6dfc7b16e923e220dc6933c5ed9b326/sh.h#L713
… with the EXTERN and E_INIT macros from…
https://github.com/MirBSD/mksh/blob/b0219da8e6dfc7b16e923e220dc6933c5ed9b326/sh.h#L657
where main.c defines EXTERN, so the string is embedded into the file using it.

Is there perhaps a misunderstanding with the gcc/binutils/glibc developers
as to what static-pie is meant to be?

bye,
//mirabilos
-- 
<hecker> cool ein Ada Lovelace Google-Doodle. aber zum 197. Geburtstag? Hätten
die nicht noch 3 Jahre warten können? <mirabilos> bis dahin gibts google nicht
mehr <hecker> ja, könnte man meinen. wahrscheinlich ist der angekündigte welt-
untergang aus dem maya-kalender die globale abschaltung von google ☺ und darum
müssen die die doodles vorher noch raushauen

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