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 E. McKenney" <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: [RFC PATCH glibc 1/4] glibc: Perform rseq(2) registration at nptl init and thread creation (v4)
Date: Mon, 14 Jan 2019 19:57:03 +0100 [thread overview]
Message-ID: <87bm4j9if4.fsf@oldenburg2.str.redhat.com> (raw)
In-Reply-To: <1488546469.1564.1547169116539.JavaMail.zimbra@efficios.com> (Mathieu Desnoyers's message of "Thu, 10 Jan 2019 20:11:56 -0500 (EST)")
* Mathieu Desnoyers:
> Now that I think about it, it's important to move the rseq registration
> done at nptl init (in my current code) to some lower-level csu initialiation,
> so applications that happen _not_ to link against libpthread also get
> registered rseq for the main thread.
Yes. In general, we want to avoid to force libraries which do not
create threads to link against libpthread, and try to provide interfaces
which are required for synchronization within libc.
Thanks,
Florian
next prev parent reply other threads:[~2019-01-14 18:57 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-04 19:21 [RFC PATCH glibc 1/4] glibc: Perform rseq(2) registration at nptl init and thread creation (v4) Mathieu Desnoyers
2018-12-04 19:21 ` [RFC PATCH glibc 2/4] glibc: sched_getcpu(): use rseq cpu_id TLS on Linux Mathieu Desnoyers
2018-12-04 19:44 ` [RFC PATCH glibc 1/4] glibc: Perform rseq(2) registration at nptl init and thread creation (v4) Florian Weimer
2018-12-04 19:50 ` Mathieu Desnoyers
2018-12-11 10:40 ` Florian Weimer
2019-01-10 20:31 ` Mathieu Desnoyers
2019-01-11 1:11 ` Mathieu Desnoyers
2019-01-14 18:57 ` Florian Weimer [this message]
2019-01-14 18:55 ` Florian Weimer
2019-01-14 19:22 ` Mathieu Desnoyers
2019-01-14 19:37 ` Florian Weimer
2019-01-14 20:27 ` Mathieu Desnoyers
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