From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mathieu Desnoyers Subject: Re: Question about how to retrieve ip value of a syscall Date: Wed, 10 Sep 2014 15:12:11 +0000 (UTC) Message-ID: <702102133.20941.1410361931313.JavaMail.zimbra__23124.0951842212$1410361866$gmane$org@efficios.com> References: Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="----=_Part_20935_1064367699.1410361931309" Return-path: In-Reply-To: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: lttng-dev-bounces@lists.lttng.org To: tarek slaymia Cc: lttng-dev@lists.lttng.org, lttng-dev-request@lists.lttng.org List-Id: lttng-dev@lists.lttng.org ------=_Part_20935_1064367699.1410361931309 Content-Type: multipart/alternative; boundary="----=_Part_20936_289137583.1410361931309" ------=_Part_20936_289137583.1410361931309 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit ----- Original Message ----- > From: "tarek slaymia" > To: lttng-dev-request@lists.lttng.org, lttng-dev@lists.lttng.org > Sent: Wednesday, August 20, 2014 7:15:21 PM > Subject: [lttng-dev] Question about how to retrieve ip value of a syscall > Hi all , > i tried to implement an event in statedump in order to compare the runtime > syscall address and the syscall symbol address ( the same address displayed > in ip field when i use lttng kprobe ). > did you know how can i retrieve the syscall symbol value using my function in > lttng-statedump-impl.c file ? > i have an other issue when i tried to list all kernel event , the new event > that i add in lttng-module isn't displayed . did i miss something ? > you find in attachment the additional code . Does the printk within lttng_enumerate_syscall_address_list() print anything on the console when you start tracing ? Try adding printk in your code to see what is happening. It's not executed often, so it should be easy to understand what is going wrong by adding printk statements. Thanks, Mathieu > BR > _______________________________________________ > lttng-dev mailing list > lttng-dev@lists.lttng.org > http://lists.lttng.org/cgi-bin/mailman/listinfo/lttng-dev -- Mathieu Desnoyers EfficiOS Inc. http://www.efficios.com ------=_Part_20936_289137583.1410361931309 Content-Type: text/html; charset=utf-8 Content-Transfer-Encoding: quoted-printable
From: "tarek slaymia" <tar= ek.slaymia@gmail.com>
To: lttng-dev-request@lists.lttng.org, l= ttng-dev@lists.lttng.org
Sent: Wednesday, August 20, 2014 7:15:21= PM
Subject: [lttng-dev] Question about how to retrieve ip value = of a syscall

Hi all = ,
i tried to implement an event in statedump in order to compare t= he runtime syscall address and the syscall symbol address ( the same addres= s displayed in ip field when i use lttng kprobe ).

did you kno= w how can i retrieve the syscall symbol value using my function in lttng-st= atedump-impl.c file ?
i have an other issue when i tried to list a= ll kernel event , the new event that i add in lttng-module isn't displayed = . did i miss something ?

you find in attachment the additional= code .
Does the printk within lttng_enumerate_sysca= ll_address_list()
print anything on the console when you start tr= acing ?

Try adding printk in your code to see = what is happening. It's not executed often,
so it should be e= asy to understand what is going wrong by adding printk statements.

Thanks,

Mathieu
=



BR
<= /div>
_______________________________________________
lttng-dev maili= ng list
lttng-dev@lists.lttng.org
http://lists.lttng.org/cgi-bin/mail= man/listinfo/lttng-dev



--
Mathieu Desnoyers
EfficiOS = Inc.
http://www.efficios.com
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