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List:       oprofile-list
Subject:    RE: callgraph on x86_64
From:       "Anirban Sinha" <ASinha () zeugmasystems ! com>
Date:       2008-03-13 17:34:39
Message-ID: DDFD17CC94A9BD49A82147DDF7D545C591C4D4 () exchange ! ZeugmaSystems ! local
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>-----Original Message-----
>From: oprofile-list-bounces@lists.sourceforge.net
[mailto:oprofile-list-
>bounces@lists.sourceforge.net] On Behalf Of Konstantin Serebryany
>Sent: Wednesday, March 12, 2008 2:55 AM
>To: oprofile-list@lists.sourceforge.net
>Subject: Re: callgraph on x86_64
>
>I just found out that compiling a program with -fno-omit-frame-pointer
>makes the problem go away.


That flag turns off -fomit-frame-pointer which is enabled of you have
optimization turned on:
http://gcc.gnu.org/onlinedocs/gcc-4.1.1/gcc/Optimize-Options.html

Are you compiling your code with -o in general? What happens if you
simply turn off optimization (without doing anything with
-fno-omit-frame-pointer)?

Ani



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