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: [PATCH 1/5] glibc: Perform rseq(2) registration at C startup and thread creation (v10)
Date: Fri, 14 Jun 2019 13:35:51 +0200 [thread overview]
Message-ID: <87tvcsv1pk.fsf@oldenburg2.str.redhat.com> (raw)
In-Reply-To: <1635690189.3049.1560507249693.JavaMail.zimbra@efficios.com> (Mathieu Desnoyers's message of "Fri, 14 Jun 2019 06:14:09 -0400 (EDT)")
* Mathieu Desnoyers:
> * Makefile:
>
> LIBCPATH=/home/efficios/glibc-test/lib
> KERNEL_HEADERS=/home/efficios/git/linux-percpu-dev/usr/include
> CFLAGS=-I${KERNEL_HEADERS} -L${LIBCPATH} -Wl,--rpath=${LIBCPATH} -Wl,--dynamic-linker=${LIBCPATH}/ld-linux-x86-64.so.2
>
> all:
> gcc ${CFLAGS} -o a a.c
> gcc ${CFLAGS} -shared -fPIC -o s.so s.c
For me, that does not correctly link against the built libc because the
system dynamic loader seeps into the link.
> specifically this commit:
> https://github.com/compudj/glibc-dev/commit/c49a286497d065a7fc00aafd846e6edce14f97fc
This commit links __rseq_handled into libc.so.6 via rseq-sym.c, but does
not export it from there.
Thanks,
Florian
next prev parent reply other threads:[~2019-06-14 11:36 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-03 18:42 [PATCH 0/5] Restartable Sequences support for glibc 2.30 Mathieu Desnoyers
2019-05-03 18:42 ` [PATCH 1/5] glibc: Perform rseq(2) registration at C startup and thread creation (v10) Mathieu Desnoyers
2019-05-27 11:19 ` Florian Weimer
2019-05-27 19:27 ` Mathieu Desnoyers
2019-05-29 15:45 ` Mathieu Desnoyers
2019-05-30 20:56 ` Mathieu Desnoyers
2019-05-31 8:06 ` Florian Weimer
2019-05-31 14:48 ` Mathieu Desnoyers
2019-05-31 15:46 ` Florian Weimer
2019-05-31 18:10 ` Mathieu Desnoyers
2019-06-04 11:46 ` Florian Weimer
2019-06-04 15:57 ` Mathieu Desnoyers
2019-06-06 11:57 ` Florian Weimer
2019-06-10 14:43 ` Carlos O'Donell
2019-06-12 14:00 ` Mathieu Desnoyers
2019-06-14 10:03 ` Mathieu Desnoyers
2019-06-14 10:06 ` Florian Weimer
2019-06-14 10:14 ` Mathieu Desnoyers
2019-06-14 11:35 ` Florian Weimer [this message]
2019-06-14 12:55 ` Mathieu Desnoyers
2019-06-14 13:01 ` Mathieu Desnoyers
2019-06-14 13:09 ` Florian Weimer
2019-06-14 13:18 ` Mathieu Desnoyers
2019-06-14 13:24 ` Florian Weimer
2019-06-14 13:34 ` Mathieu Desnoyers
2019-06-14 13:42 ` Florian Weimer
2019-06-14 13:47 ` Mathieu Desnoyers
2019-06-14 13:53 ` Florian Weimer
2019-06-14 13:59 ` Mathieu Desnoyers
[not found] ` <69a53ec2ce184af29c4cae58e0b2fb57@AcuMS.aculab.com>
2019-06-14 13:39 ` Mathieu Desnoyers
2019-06-12 14:16 ` Mathieu Desnoyers
2019-06-12 14:22 ` Florian Weimer
2019-06-12 14:36 ` Mathieu Desnoyers
2019-06-12 14:43 ` Florian Weimer
2019-05-03 18:42 ` [PATCH 2/5] glibc: sched_getcpu(): use rseq cpu_id TLS on Linux (v4) Mathieu Desnoyers
2019-05-03 18:42 ` [PATCH 3/5] support record failure: allow use from constructor Mathieu Desnoyers
2019-05-03 18:42 ` [PATCH 4/5] support: implement xpthread key create/delete (v2) Mathieu Desnoyers
2019-05-03 18:42 ` [PATCH 5/5] rseq registration tests (v4) Mathieu Desnoyers
2019-05-20 15:24 ` [PATCH 0/5] Restartable Sequences support for glibc 2.30 Mathieu Desnoyers
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