Re: readelf -S and long section name

["H. J. Lu" <hjl at lucon dot org>]

On Mon, Jul 28, 2003 at 07:34:36PM +0200, Jakub Jelinek wrote:
> On Mon, Jul 28, 2003 at 10:21:13AM -0700, H. J. Lu wrote:
> > On Mon, Jul 28, 2003 at 05:45:51PM +0100, Nick Clifton wrote:
> > > Hi H.J.
> > > 
> > > > readelf -S won't display the full section name if it is longer than
> > > > certain chars. Sometimes, I want to know the full section name. Is
> > > > there a switch to do that?
> > > 
> > > At the moment no, although this is something that ought to be enabled
> > > with the --wide switch.
> > > 
> > 
> > Like this?
> > 
> > 
> > H.J.
> > ----
> > 2003-07-28  H.J. Lu  <hongjiu.lu@intel.com>
> > 
> > 	* readelf.c (process_section_headers): Print out the full
> > 	section name if do_wide is not zero.
> > 
> > --- binutils/readelf.c.wide	2003-07-07 07:12:00.000000000 -0700
> > +++ binutils/readelf.c	2003-07-28 10:17:48.000000000 -0700
> > @@ -3872,10 +3872,16 @@ process_section_headers (file)
> >         i < elf_header.e_shnum;
> >         i++, section++)
> >      {
> > -      printf ("  [%2u] %-17.17s %-15.15s ",
> > -	      SECTION_HEADER_NUM (i),
> > -	      SECTION_NAME (section),
> > -	      get_section_type_name (section->sh_type));
> > +      if (do_wide)
> > +	printf ("  [%2u] %-17s %-15.15s ",
> > +		SECTION_HEADER_NUM (i),
> > +		SECTION_NAME (section),
> > +		get_section_type_name (section->sh_type));
> > +      else
> > +	printf ("  [%2u] %-17.17s %-15.15s ",
> > +		SECTION_HEADER_NUM (i),
> > +		SECTION_NAME (section),
> > +		get_section_type_name (section->sh_type));
> >  
> >        if (is_32bit_elf)
> >  	{
> 
> As section name is in second, not last column, I think it would be better
> to compute maximum section name length and move the remaining columns to the
> right if there is any section with name longer than 17 chars.

The problem is one long section name, which is unusual in C++, will
make a very large number of columns and make it hard to see the rest
of output.


H.J.