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Re: less dwarf2 debug info stored in .o on ia64

From: Devang Patel <dpatel at apple dot com>
To: Daniel Jacobowitz <drow at mvista dot com>
Cc: Rens Sankar <rens dot sankar at wipro dot com>, wilson at specifixinc dot com, Richard Henderson <rth at redhat dot com>, gcc mailing list <gcc at gcc dot gnu dot org>
Date: Fri, 9 Jan 2004 11:29:32 -0800
Subject: Re: less dwarf2 debug info stored in .o on ia64
References: <3FFBA452.4010105@wipro.com> <D3B29F79-4195-11D8-BC6A-000393A91CAA@apple.com> <3FFEA17D.1090500@wipro.com> <20000644-42D7-11D8-A47F-000393A91CAA@apple.com> <20040109192313.GA7820@nevyn.them.org>

On Jan 9, 2004, at 11:23 AM, Daniel Jacobowitz wrote:

On Fri, Jan 09, 2004 at 11:07:52AM -0800, Devang Patel wrote:

Any idea why these are not stored in dwarf-2?


GCC is not emitting debug info for nameless fields. I do not know why.
Is it just to save space? Someone has added this check with comments
in dwarf2out.c, so it is intentional.


It's explicit padding; we don't emit debug information for implicit
padding so why should we for explicit padding?


May be user wants to see it while printing types? I do not have any
opinion whether it should emit debug info. for nameless fields or not.
But your explanation answers my 'why' question.

Thanks,
--
Devang

References:
- less dwarf2 debug info stored in .o on ia64
  - From: Rens Sankar
- Re: less dwarf2 debug info stored in .o on ia64
  - From: Devang Patel
- Re: less dwarf2 debug info stored in .o on ia64
  - From: Rens Sankar
- Re: less dwarf2 debug info stored in .o on ia64
  - From: Devang Patel
- Re: less dwarf2 debug info stored in .o on ia64
  - From: Daniel Jacobowitz

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