----- Original Message -----
> From: chru...@suse.cz
> To: "Jan Stancek" <jstan...@redhat.com>
> Cc: ltp-list@lists.sourceforge.net
> Sent: Tuesday, 26 August, 2014 10:55:19 AM
> Subject: Re: [LTP] [PATCH/RFC] profil01: don't use address of function
>
> Hi!
> > I think it was introduced in 90s, though not every architecture supported
> > it at first.
> >
> > I see it in very first release of clang 1.0 sources:
> > ./src/gcc/builtins.def:DEF_GCC_BUILTIN
> > (BUILT_IN_RETURN_ADDRESS, "return_address", BT_FN_PTR_UNSIGNED,
> > ATTR_NULL)
> > but I didn't try to compile it with that.
> >
> > >
> > > If we are in doubt, we should add a configure check and use it only when
> > > available. And probably to default to &test_profil in all cases but
> > > ppc64 BE which is known to fail.
> >
> > I'm trying one other idea:
> >
> > +static inline void *get_pc(void)
> > +{
> > + extern void *profil01_label;
> > +
> > + asm("profil01_label:");
> > + return &profil01_label;
> > +}
>
> It looks like I've accidentally deleted your reply to this email, sorry.
>
> As both methods (the one with builtin and the one with asm()) seems to
> work fine, feel free to proceed with either one of them.
Pushed. (I went with the gcc builtin)
Regards,
Jan
>
> --
> Cyril Hrubis
> chru...@suse.cz
>
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