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From: Jiri Olsa <jolsa@redhat.com>
To: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Jiri Olsa <jolsa@kernel.org>, David Ahern <dsahern@gmail.com>,
	Frederic Weisbecker <fweisbec@gmail.com>,
	He Kuang <hekuang@huawei.com>, Ingo Molnar <mingo@kernel.org>,
	Jeremie Galarneau <jgalar@efficios.com>,
	Namhyung Kim <namhyung@kernel.org>,
	Paul Mackerras <paulus@samba.org>,
	Peter Zijlstra <a.p.zijlstra@chello.nl>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Tom Zanussi <tzanussi@gmail.com>, Wang Nan <wangnan0@huawei.com>,
	lkml <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH 7/7] perf data: Fix signess of value
Date: Mon, 20 Apr 2015 23:52:22 +0200	[thread overview]
Message-ID: <20150420215222.GG10644@krava.redhat.com> (raw)
In-Reply-To: <20150420212314.GR11111@kernel.org>

On Mon, Apr 20, 2015 at 06:23:14PM -0300, Arnaldo Carvalho de Melo wrote:
> Em Sat, Apr 18, 2015 at 05:50:20PM +0200, Jiri Olsa escreveu:
> > From: Wang Nan <wangnan0@huawei.com>
> > 
> > When converting int values, perf first extractes it to a ulonglong, then
> > feeds it to babeltrace as a signed value. For negative 32 bit values
> > (for example, return values of failed syscalls), the extracted data
> > should be something like 0xfffffffe (-2). It becomes a large int64
> > value. Babeltrace denies to insert it with
> > bt_ctf_field_signed_integer_set_value() because it is larger than
> > 0x7fffffff, the largest positive value a signed 32 bit int can be.
> 
> There is no such word "signess", it is "signedness", fixing this up.
> Humm, it seems there is such a word indeed:
> 
> http://www.urbandictionary.com/define.php?term=Signess
> 
> But I bet this is the one we want:
> 
> http://en.wikipedia.org/wiki/Signedness
> 
> Right? :-)

right ;-) thanks

jirka

  reply	other threads:[~2015-04-20 21:52 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-04-18 15:50 [PATCHv6 0/7] perf tools: Add perf data CTF conversion Jiri Olsa
2015-04-18 15:50 ` [PATCH 1/7] perf data: Show error message when conversion failed Jiri Olsa
2015-05-06  2:55   ` [tip:perf/core] " tip-bot for He Kuang
2015-04-18 15:50 ` [PATCH 2/7] perf data: Switch to multiple cpu stream files Jiri Olsa
2015-04-20 19:58   ` Arnaldo Carvalho de Melo
2015-04-20 20:01     ` Arnaldo Carvalho de Melo
2015-04-20 20:19     ` Jiri Olsa
2015-04-20 20:41       ` Arnaldo Carvalho de Melo
2015-04-20 20:49         ` Arnaldo Carvalho de Melo
2015-05-06  2:57   ` [tip:perf/core] " tip-bot for Sebastian Andrzej Siewior
2015-04-18 15:50 ` [PATCH 3/7] perf data: Enable stream flush within processing Jiri Olsa
2015-05-06  2:57   ` [tip:perf/core] " tip-bot for Jiri Olsa
2015-04-18 15:50 ` [PATCH 4/7] perf data: Add support for setting ordered_events queue size Jiri Olsa
2015-05-06  2:57   ` [tip:perf/core] " tip-bot for Jiri Olsa
2015-04-18 15:50 ` [PATCH 5/7] tools lib traceevent: Add alias field to struct format_field Jiri Olsa
2015-04-20 14:24   ` Steven Rostedt
2015-05-06  2:55   ` [tip:perf/core] " tip-bot for Jiri Olsa
2015-04-18 15:50 ` [PATCH 6/7] perf data: Fix duplicate field names and avoid reserved keywords Jiri Olsa
2015-04-18 18:56   ` Jérémie Galarneau
2015-04-18 20:45     ` Jiri Olsa
2015-04-20 14:02       ` Arnaldo Carvalho de Melo
2015-05-06  2:57   ` [tip:perf/core] " tip-bot for Wang Nan
2015-04-18 15:50 ` [PATCH 7/7] perf data: Fix signess of value Jiri Olsa
2015-04-20 21:23   ` Arnaldo Carvalho de Melo
2015-04-20 21:52     ` Jiri Olsa [this message]
2015-04-21  2:41     ` Wang Nan
2015-04-21 14:25       ` Arnaldo Carvalho de Melo
2015-05-06  2:58   ` [tip:perf/core] perf data: Fix signedness " tip-bot for Wang Nan
2015-04-20 20:05 ` [PATCHv6 0/7] perf tools: Add perf data CTF conversion Arnaldo Carvalho de Melo

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