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NNTP-Posting-Date: Sat, 10 Jan 2026 09:10:50 +0000
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Date: Sat, 10 Jan 2026 11:10:28 +0200
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From: "Eli Zaretskii (eliz@gnu.org) [via djgpp@delorie.com]" <djgpp@delorie.com>
To: djgpp@delorie.com
In-Reply-To: <0752ebcc-24dd-4ea1-ad68-7822463d0eda@polymtl.ca> (djgpp@delorie.com)
Subject: Re: Supported debug info formats
References: <0752ebcc-24dd-4ea1-ad68-7822463d0eda@polymtl.ca>
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> Date: Fri, 9 Jan 2026 12:25:50 -0500
> From: "Simon Marchi (simon.marchi@polymtl.ca) [via djgpp@delorie.com]" <djgpp@delorie.com>
> 
> GDB maintainer here.  I'm in the process of cleaning up obsolete things,
> like debug info formats that are not longer relevant.  I am now looking
> at COFF [1].  I am wondering if this is still useful for DJGPP, or if
> nowadays you can use DWARF like most other targets (or if people use GDB
> for DJGPP at all).
> 
> In the gcc source code [1] I see this, so I guess that DWARF 2 is the
> default debug format now?

GCC tossed COFF debug info some time ago, so I think it's okay to
remove that from GDB as well.

We used to need this for building the DJGPP port of Emacs, but that is
no longer required, since the next release 31.1 of Emacs will no
longer force or need the -gcoff switch to GCC.  So that reason is also
no more valid.