X-Recipient: archive-cygwin AT delorie DOT com
DomainKey-Signature: a=rsa-sha1; c=nofws; d=sourceware.org; h=list-id
	:list-unsubscribe:list-subscribe:list-archive:list-post
	:list-help:sender:mime-version:in-reply-to:references:date
	:message-id:subject:from:to:content-type; q=dns; s=default; b=cg
	8k/P8dlxGIjDJerOqjC72DLe3O62opdT/QGj5kracBmhI1Jpl0u0e9QSWMqahM34
	iLXUaiNFkNrAneexWF6ZXXflRCq/JhHqP7mlv4Q9lJPXwiVJPQfaZjcVDrIFwHsQ
	KCxMnCaxlhXIYR3gw0YrqKj5CT7sgkUy0Q7K59oR8=
DKIM-Signature: v=1; a=rsa-sha1; c=relaxed; d=sourceware.org; h=list-id
	:list-unsubscribe:list-subscribe:list-archive:list-post
	:list-help:sender:mime-version:in-reply-to:references:date
	:message-id:subject:from:to:content-type; s=default; bh=faVKyqbF
	xa8TVwd7t/VIHnEOJSs=; b=ydsJNxZro6A2hn6Mmw0tUAGyDXE30KSdAyvh+Yye
	Ix5Bo15otI1ckFL04hWmNN1DTyQ0sAXHvJ1W0LHihBpr5m6UPcbi3BHrqBDn8NF6
	SBhMgoffbQ8Rsh0ckYHP2NqRayYwu+9QV9aHk115XoWU4jE7ffNZxccGfqRlIS0s
	miw=
Mailing-List: contact cygwin-help AT cygwin DOT com; run by ezmlm
List-Id: <cygwin.cygwin.com>
List-Subscribe: <mailto:cygwin-subscribe AT cygwin DOT com>
List-Archive: <http://sourceware.org/ml/cygwin/>
List-Post: <mailto:cygwin AT cygwin DOT com>
List-Help: <mailto:cygwin-help AT cygwin DOT com>, <http://sourceware.org/ml/#faqs>
Sender: cygwin-owner AT cygwin DOT com
Mail-Followup-To: cygwin AT cygwin DOT com
Delivered-To: mailing list cygwin AT cygwin DOT com
X-Spam-SWARE-Status: No, score=-2.8 required=5.0 tests=AWL,BAYES_00,FREEMAIL_FROM,KHOP_THREADED,RCVD_IN_DNSWL_LOW,RCVD_IN_HOSTKARMA_YE,SPF_PASS autolearn=ham version=3.3.1
MIME-Version: 1.0
X-Received: by 10.52.73.193 with SMTP id n1mr455746vdv.71.1371572373080; Tue, 18 Jun 2013 09:19:33 -0700 (PDT)
In-Reply-To: <2CF6002E09D8F54E9839DA08786D3200958D9548@EX10-LIVE-MBN2.ad.kent.ac.uk>
References: <2CF6002E09D8F54E9839DA08786D3200958D7B7A AT EX10-LIVE-MBN2 DOT ad DOT kent DOT ac DOT uk>	<51BF3EC0 DOT 4040906 AT cygwin DOT com>	<20130618101107 DOT GA27405 AT calimero DOT vinschen DOT de>	<20130618103825 DOT GD27405 AT calimero DOT vinschen DOT de>	<2CF6002E09D8F54E9839DA08786D3200958D9548 AT EX10-LIVE-MBN2 DOT ad DOT kent DOT ac DOT uk>
Date: Tue, 18 Jun 2013 18:19:32 +0200
Message-ID: <CANeJNHrAoy5r_eFZMAX-k0HMmc4r-ik2edu7Y+jqn9AFqzcKnA@mail.gmail.com>
Subject: Re: What is a good profiling tool ? - problem with gprof
From: Ariel Burbaickij <ariel DOT burbaickij AT gmail DOT com>
To: cygwin AT cygwin DOT com
Content-Type: text/plain; charset=ISO-8859-1

 Uhm, may I ask for some pointers to Altera/Stawberry cygwins -- what is it?

On Tue, Jun 18, 2013 at 4:06 PM, J.B.W.Webber <J DOT B DOT W DOT Webber AT kent DOT ac DOT uk> wrote:
>
>
> -----Original Message-----
> Subject: Re: What is a good profiling tool ? - problem with gprof
>
> On Jun 18 12:11, Corinna Vinschen wrote:
>> On Jun 17 12:52, Larry Hall (Cygwin) wrote:
>> > On 6/17/2013 12:19 PM, J.B.W.Webber wrote:
>> > >Hi, I am trying to find in which function call the most time is being spent.
>> > >
>> > >I am using gcc and trying to compile and link with -g and -pg.
>> > >i.e. for a trivial test :
>> > >
>> > >$ cat helloworld.c
>> > >/* Hello World program */
>> > >#include<stdio.h>
>> > >main()
>> > >{
>> > >     printf("Hello World\n");
>> > >}
>> > >
>> > >$ gcc -g -pg -c helloworld.c
>> > >$ gcc -pg helloworld.o
>> > >helloworld.o: In function `main':
>> > >helloworld.c:6: undefined reference to `_mcount'
>> > >collect2: ld returned 1 exit status
>> > >
>> > >Any ideas ? Am I missing a .h call ? Or do I need to link to something ?
>> >
>> > Worked for me.  Perhaps your Strawberry gcc installation is interfering.
>>
>> I don't know how you succeeed to build that, Larry.  I could easily
>> reproduce the problem.  It was a build problem in Cygwin.  I fixed
>> that now and at the same time made the 64 bit profiling workable,
>> curtesy the
>> Mingw-w64 project, which already did the required work.  The original
>> profiling code was created within the Cygwin project ages ago, so I
>> could included the latest Mingw-w64 profiling code (almost) verbatim
>> into Cygwin and now it seems to work fine again for 32 and 64 bit.
>>
>> I'm just about to create a 2013-06-18 32 bit snapshot on
>> http://cygwin.com/snapshots/ and a 64 bit test release 1.7.12-5, which
>> both should be ready in an hour.
>
> Uploaded.  Please note that it's *not* enough to install the snapshot Cygwin DLL.  The important items here are gcrt0.o and libgmon.a.
>
>
> Corinna
>
> --
> Corinna Vinschen                  Please, send mails regarding Cygwin to
> Cygwin Maintainer                 cygwin AT cygwin DOT com
> Red Hat
>
> _____________________________________________
>
> Really thanks to all. That now works.
>
> Sorry for the slow reply, I did the install with the snapshot as suggested
> - no difference, at first, but I had been given the clues I needed.
>
> I used find to track all libgmon.a  on my laptop :
>
> C:/Altera/12.0sp2/quartus/bin/cygwin/lib/libgmon.a
> C:/Altera/12.0sp2/quartus/bin/cygwin/lib/mingw/libgmon.a
> C:/Altera/12.0sp2/quartus/bin/cygwin/usr/i686-pc-mingw32/lib/libgmon.a
> C:/Applications/Strawberry/c/x86_64-w64-mingw32/lib/libgmon.a
> C:/cygwin/lib/libgmon.a
> C:/cygwin/usr/i686-pc-mingw32/sys-root/mingw/lib/libgmon.a
> C:/cygwin/usr/lib/libgmon.a
>
> I blocked access to the Altera and Strawberry Cygwins, which made no difference, (no, XMOS does not use Cygwin)
> But the answer was the version C:/cygwin/lib/libgmon.a
> I copied the new gcrt0.o and libgmon.a into C:/cygwin/lib/
> and all now works fine. I have the answer I needed.
>
> I do thank you all,
> Cheers,
>         Beau
>
>

--
Problem reports:       http://cygwin.com/problems.html
FAQ:                   http://cygwin.com/faq/
Documentation:         http://cygwin.com/docs.html
Unsubscribe info:      http://cygwin.com/ml/#unsubscribe-simple