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From:   Florian Weimer <fweimer@redhat.com>
To:     Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc:     carlos <carlos@redhat.com>, Joseph Myers <joseph@codesourcery.com>,
        Szabolcs Nagy <szabolcs.nagy@arm.com>,
        libc-alpha <libc-alpha@sourceware.org>,
        Thomas Gleixner <tglx@linutronix.de>,
        Ben Maurer <bmaurer@fb.com>,
        Peter Zijlstra <peterz@infradead.org>,
        Paul <paulmck@linux.vnet.ibm.com>,
        Boqun Feng <boqun.feng@gmail.com>,
        Will Deacon <will.deacon@arm.com>,
        Dave Watson <davejwatson@fb.com>, Paul Turner <pjt@google.com>,
        Rich Felker <dalias@libc.org>,
        linux-kernel <linux-kernel@vger.kernel.org>,
        linux-api <linux-api@vger.kernel.org>
Subject: Re: [PATCH 1/3] glibc: Perform rseq registration at C startup and thread creation (v21)
References: <20200622180803.1449-1-mathieu.desnoyers@efficios.com>
        <20200622180803.1449-2-mathieu.desnoyers@efficios.com>
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Date:   Wed, 24 Jun 2020 21:24:15 +0200
In-Reply-To: <1248023868.11643.1593026198678.JavaMail.zimbra@efficios.com>
        (Mathieu Desnoyers's message of "Wed, 24 Jun 2020 15:16:38 -0400
        (EDT)")
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* Mathieu Desnoyers:

>> I think we should keep things simple on the glibc side for now and do
>> this changes to the kernel headers first.
>
> Just to be sure I understand what you mean by "keep things simple", do you
> recommend removing the following lines completely for now from sys/rseq.h ?
>
> /* Ensure the compiler supports rseq_align.  */
> __rseq_static_assert (__rseq_alignof (struct rseq_cs) >= 32, "alignment");
> __rseq_static_assert (__rseq_alignof (struct rseq) >= 32, "alignment");

Yes, that's what I meant.

Thanks,
Florian