linux-kernel - Re: [PATCH] perf: Make perf able to build with latest libbfd

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Message-ID: <20200130105548.GC3841@kernel.org>
Date:   Thu, 30 Jan 2020 11:55:48 +0100
From:   Arnaldo Carvalho de Melo <arnaldo.melo@...il.com>
To:     Jiri Olsa <jolsa@...hat.com>
Cc:     Changbin Du <changbin.du@...il.com>,
        Peter Zijlstra <peterz@...radead.org>,
        Ingo Molnar <mingo@...hat.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] perf: Make perf able to build with latest libbfd

Em Wed, Jan 29, 2020 at 08:58:29AM +0100, Jiri Olsa escreveu:
> On Tue, Jan 28, 2020 at 11:29:38PM +0800, Changbin Du wrote:
> > libbfd has changed the bfd_section_* macros to inline functions
> > bfd_section_<field> since 2019-09-18. See below two commits:
> >   o http://www.sourceware.org/ml/gdb-cvs/2019-09/msg00064.html
> >   o https://www.sourceware.org/ml/gdb-cvs/2019-09/msg00072.html
> > 
> > This fix make perf able to build with both old and new libbfd.
> > 
> > Signed-off-by: Changbin Du <changbin.du@...il.com>
> 
> Acked-by: Jiri Olsa <jolsa@...hat.com>

Thanks, applied.

- Arnaldo
 
> thanks,
> jirka
> 
> 
> > ---
> >  tools/perf/util/srcline.c | 16 +++++++++++++++-
> >  1 file changed, 15 insertions(+), 1 deletion(-)
> > 
> > diff --git a/tools/perf/util/srcline.c b/tools/perf/util/srcline.c
> > index 6ccf6f6d09df..5b7d6c16d33f 100644
> > --- a/tools/perf/util/srcline.c
> > +++ b/tools/perf/util/srcline.c
> > @@ -193,16 +193,30 @@ static void find_address_in_section(bfd *abfd, asection *section, void *data)
> >  	bfd_vma pc, vma;
> >  	bfd_size_type size;
> >  	struct a2l_data *a2l = data;
> > +	flagword flags;
> >  
> >  	if (a2l->found)
> >  		return;
> >  
> > -	if ((bfd_get_section_flags(abfd, section) & SEC_ALLOC) == 0)
> > +#ifdef bfd_get_section_flags
> > +	flags = bfd_get_section_flags(abfd, section);
> > +#else
> > +	flags = bfd_section_flags(section);
> > +#endif
> > +	if ((flags & SEC_ALLOC) == 0)
> >  		return;
> >  
> >  	pc = a2l->addr;
> > +#ifdef bfd_get_section_vma
> >  	vma = bfd_get_section_vma(abfd, section);
> > +#else
> > +	vma = bfd_section_vma(section);
> > +#endif
> > +#ifdef bfd_get_section_size
> >  	size = bfd_get_section_size(section);
> > +#else
> > +	size = bfd_section_size(section);
> > +#endif
> >  
> >  	if (pc < vma || pc >= vma + size)
> >  		return;
> > -- 
> > 2.24.0
> > 
> 

-- 

- Arnaldo