Re: how to install profiling libs? (2)

[Sascha Wildner <saw@xxxxxxxxx>]

Am 28.05.2010 00:09, schrieb Damian Weber:
> On Thu, 27 May 2010, Sascha Wildner wrote:
>
> > Date: Thu, 27 May 2010 22:55:02 +0200
> > From: Sascha Wildner<saw@online.de>
> > To: users@crater.dragonflybsd.org
> > Newsgroups: dragonfly.users
> > Subject: Re: how to install profiling libs? (2)
> >
> > Am 27.05.2010 22:30, schrieb Damian Weber:
> > > How to install libm_p.a?
> >
> > Not that this is particularly helpful, but profiled libs (afaik) are in
> > /usr/lib/profile and it would be /usr/lib/profile/libm.a in this case.
>
> I tried it and set a link to the library.
>
> $ ls -l /usr/lib/libm_p.a
> lrwxr-xr-x  1 root  wheel  23 May 27 23:48 /usr/lib/libm_p.a@ ->  /usr/lib/profile/libm.a
>
> Compile now ok, but weird result, argv=0x0 ?!

Damian,

it's because of the optimization, see 
http://leaf.dragonflybsd.org/mailarchive/kernel/2010-04/msg00023.html.

Maybe Venkatesh found out more in the meantime and can chime in.

One would have to find out how to prevent optimization from setting 
argc/argv to 0. In the meantime you could set CFLAGS to "-O0 -pipe" (the 
default is "-O -pipe") and recompile/-install libc.

Sascha

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