From: Will Newton <will.newton@linaro.org>
To: Tom Tromey <tromey@redhat.com>
Cc: Marcus Shawcroft <marcus.shawcroft@gmail.com>,
Venkataramanan Kumar <venkataramanan.kumar@linaro.org>,
"libc-ports@sourceware.org" <libc-ports@sourceware.org>,
Patch Tracking <patch@linaro.org>
Subject: Re: [PATCH] [AARCH64]: Pointer mangling support for Aarch64
Date: Mon, 20 Jan 2014 17:02:00 -0000 [thread overview]
Message-ID: <CANu=DmgcNroiTs3HEZeEGREQfTdt2ZG8N8my7_93kRCGzvAwEQ@mail.gmail.com> (raw)
In-Reply-To: <87txcyhabd.fsf@fleche.redhat.com>
On 20 January 2014 16:44, Tom Tromey <tromey@redhat.com> wrote:
>>>>>> "Will" == Will Newton <will.newton@linaro.org> writes:
>
> Will> Can you confirm that gdb does not use the longjmp_target probe? It
> Will> doesn't appear to use it as far as I can tell. Are you aware of what
> Will> consumers there are for this probe point?
>
> Yeah, gdb uses the "longjmp" probe, not "longjmp_target".
> I don't know what uses the latter; though it's worth noting that all
> probes are available to gdb and systemtap users, so I wouldn't
> necessarily know whether someone is using it.
It's not clear to me the difference between the two - they take the
same arguments as far as I can tell (longjmp arguments 1 and 2, and
the target PC) but longjmp_target occurs at some later point which
seems implementation dependant. For that reason I would propose new
ports (or ports lacking these probes entirely such as ARM) not
implement longjmp_target unless there is a compelling reason to do so.
--
Will Newton
Toolchain Working Group, Linaro
next prev parent reply other threads:[~2014-01-20 17:02 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-12-26 12:25 Venkataramanan Kumar
2013-12-26 19:33 ` Richard Henderson
2013-12-27 7:48 ` Venkataramanan Kumar
2013-12-27 15:09 ` Richard Henderson
2013-12-30 5:00 ` Venkataramanan Kumar
2013-12-30 14:45 ` Richard Henderson
2013-12-30 15:36 ` Venkataramanan Kumar
2013-12-30 22:20 ` Marcus Shawcroft
2013-12-31 5:15 ` Venkataramanan Kumar
2014-01-01 17:42 ` Marcus Shawcroft
2014-01-06 18:11 ` Tom Tromey
2014-01-07 11:05 ` Venkataramanan Kumar
2014-01-07 12:17 ` Marcus Shawcroft
2014-01-07 18:10 ` Tom Tromey
2014-01-10 9:54 ` Will Newton
2014-01-20 9:01 ` Will Newton
2014-01-20 16:45 ` Tom Tromey
2014-01-20 17:02 ` Will Newton [this message]
2014-01-08 10:32 ` Venkataramanan Kumar
2014-01-10 10:40 ` Marcus Shawcroft
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