From: Florian Weimer <fweimer@redhat.com>
To: "H.J. Lu" <hjl.tools@gmail.com>
Cc: "Gian-Carlo Pascutto" <gpascutto@mozilla.com>,
"Mathieu Desnoyers" <mathieu.desnoyers@efficios.com>,
"GNU C Library" <libc-alpha@sourceware.org>,
"Christian Brauner" <christian.brauner@ubuntu.com>,
"Jed Davis" <jld@mozilla.com>,
"Emilio Cobos Álvarez" <ealvarez@mozilla.com>
Subject: Re: glibc 2.32 rseq support incompatible with Firefox sandbox
Date: Thu, 09 Jul 2020 17:29:19 +0200 [thread overview]
Message-ID: <87h7ug671s.fsf@oldenburg2.str.redhat.com> (raw)
In-Reply-To: <CAMe9rOq8nLEyK_nQbxUFxp9yr=gQ7sLpk+Mio0=T-ZyPYE5QNg@mail.gmail.com> (H. J. Lu's message of "Thu, 9 Jul 2020 08:19:56 -0700")
* H. J. Lu:
> Initialization may not always work:
>
> https://sourceware.org/bugzilla/show_bug.cgi?id=26203
Sorry, this is a completely different issue. For rseq, we use
__libc_early_init, which is always invoked before executing user code.
IFUNC resolvers cannot use rseq reliably because it introduces a
relocation dependency.
Thanks,
Florian
next prev parent reply other threads:[~2020-07-09 15:29 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-07-09 15:03 Florian Weimer
2020-07-09 15:19 ` H.J. Lu
2020-07-09 15:29 ` Florian Weimer [this message]
2020-07-09 15:59 ` Mathieu Desnoyers
2020-07-09 16:34 ` Szabolcs Nagy
2020-07-09 18:10 ` Gian-Carlo Pascutto
2020-07-09 18:15 ` Florian Weimer
2020-07-10 3:16 ` Carlos O'Donell
2020-07-10 8:28 ` Florian Weimer
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