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From: Daniel Jacobowitz <drow@false.org>
To: James E Wilson <wilson@specifixinc.com>
Cc: Mark Kettenis <kettenis@gnu.org>,
	echristo@redhat.com, seufer@csv.ica.uni-stuttgart.de,
	gdb@sources.redhat.com, gcc@gcc.gnu.org,
	binutils@sources.redhat.com
Subject: Re: Mixing 32-bit and 64-bit DWARF2/3 sections
Date: Mon, 08 Nov 2004 23:50:00 -0000	[thread overview]
Message-ID: <20041108234529.GA28651@nevyn.them.org> (raw)
In-Reply-To: <418FDD06.9030404@specifixinc.com>

On Mon, Nov 08, 2004 at 12:54:30PM -0800, James E Wilson wrote:
> Unfortunately, the way that SGI extended DWARF2 caused problems, as it 
> resulted in ambiguous DWARF info, so the DWARF3 committee defined a 
> different way that is self descriptive.  But since this happened after 
> Irix6 had already been released, and SGI could not break backwards 
> compatibility with Irix6, N64 still uses the non-standard 64-bit DWARF 
> format that SGI invented.  And gcc uses this non-standard 64-bit DWARF 
> format for all mips64 targets, for consistency, and to conform with the ABI.

This is not correct.

% grep DWARF_INITIAL_LENGTH_SIZE *
iris.h:#define DWARF_INITIAL_LENGTH_SIZE DWARF_OFFSET_SIZE
%

Only Irix 5 and Irix 6 use the SGI DWARF format.  mips64-linux has been
using the standard DWARF3 format for a long while.

-- 
Daniel Jacobowitz

  parent reply	other threads:[~2004-11-08 23:46 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-11-07 15:31 Mark Kettenis
2004-11-07 16:29 ` Daniel Jacobowitz
2004-11-07 17:16   ` Mark Kettenis
2004-11-08  0:19     ` Daniel Jacobowitz
2004-11-08 21:44 ` James E Wilson
2004-11-08 23:03   ` Mark Kettenis
2004-11-08 23:37     ` James E Wilson
2004-11-08 23:46       ` Thiemo Seufer
2004-11-08 23:55         ` Daniel Berlin
2004-11-09  0:15         ` James E Wilson
2004-11-08 23:50   ` Daniel Jacobowitz [this message]
2004-11-09  0:29     ` James E Wilson
2004-11-09 20:58 ` Dean Luick
2004-11-09 22:10 David Anderson

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