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From: Szabolcs Nagy <nsz@port70.net>
To: musl@lists.openwall.com
Subject: Re: another armv7-m exception handling problem
Date: Mon, 21 Oct 2019 20:09:56 +0200	[thread overview]
Message-ID: <20191021180956.GQ7832@port70.net> (raw)
In-Reply-To: <CAEg67GnC-DMqkMOUs+3uEnetac_L52ehpALxq8oyS_9kg9RJtw@mail.gmail.com>

* Patrick Oppenlander <patrick.oppenlander@gmail.com> [2019-10-21 15:43:40 +1100]:
> Not sure if this is a musl, gcc or ld bug.
> 
> Running gcc-8.3.0 musl 1.1.24 static pie.

providing binutils version number is useful if there is
a chance that it's an ld bug.

this seems to be
https://sourceware.org/bugzilla/show_bug.cgi?id=22269

which was supposed to be fixed by
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=95b03e4ad68e7a90f5096b47df595636344b783a

but apperently there are still missing cases.
(it does not help that the ld test for this bug
greps for R_*_NONE dynrelocs but not R_*_RELATIVE
which i is just as bad for undef weak syms in pie)
i added a note to the bug.

if you add __attribute__((visibility("hidden")))
to the example given by Rich then it works, the
bug only affects static pie linking.


  parent reply	other threads:[~2019-10-21 18:09 UTC|newest]

Thread overview: 13+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-10-21  4:43 Patrick Oppenlander
2019-10-21  5:04 ` Rich Felker
2019-10-21  5:20   ` Rich Felker
2019-10-21  5:34     ` Patrick Oppenlander
2019-10-21  5:38       ` Rich Felker
2019-10-21  5:51         ` Patrick Oppenlander
2019-10-21 18:09 ` Szabolcs Nagy [this message]
2019-10-21 19:03   ` Rich Felker
2019-10-21 19:08     ` Szabolcs Nagy
2019-10-21 19:29       ` Rich Felker
2020-01-10 10:22         ` Szabolcs Nagy
2020-01-11  6:20           ` Patrick Oppenlander
2019-10-21 21:17   ` Patrick Oppenlander

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