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Re: [PATCH] Fix hot/cold partitioning with -gstabs{,+} (PR debug/81307)

From: Jeff Law <law at redhat dot com>
To: Jim Wilson <jimw at sifive dot com>, Richard Biener <rguenther at suse dot de>
Cc: Jakub Jelinek <jakub at redhat dot com>, Pedro Alves <palves at redhat dot com>, Jan Kratochvil <jan dot kratochvil at redhat dot com>, Jan Hubicka <jh at suse dot cz>, gcc-patches at gcc dot gnu dot org
Date: Tue, 28 Nov 2017 08:17:16 -0700
Subject: Re: [PATCH] Fix hot/cold partitioning with -gstabs{,+} (PR debug/81307)
Authentication-results: sourceware.org; auth=none
References: <20171124215356.GD14653@tucnak> <f4ab4b23-5e40-4797-b236-6a572f972db6@redhat.com> <alpine.LSU.2.20.1711270919330.12252@zhemvz.fhfr.qr> <0575db1b-d759-922d-b400-431142fb9424@sifive.com> <641af9c4-eda4-9208-3848-5127704d7a86@sifive.com>

On 11/27/2017 06:07 PM, Jim Wilson wrote:
> On 11/27/2017 01:54 PM, Jim Wilson wrote:
>> On 11/27/2017 12:21 AM, Richard Biener wrote:
>>> Let's formally deprecate any non-DWARF debugging format support
>>> in GCC 8 changes.html?
>>
>>   We have two OS targets that only support stabs, though in both cases
>> the cpus do support dwarf and hence they could switch.
> 
> After prodding my memory a bit, this is m68k-openbsd and *-lynxos.
I'm pretty sure the OpenBSD guys have moved to dwarf2 by default at some
point.  Certainly appears that way looking at my OpenBSD 6.2 VM.

In the case of LynxOS, I haven't used it in about 25 years.  I have no
clue if they've moved away from stabs yet.  However, I don't think we
should let that stand in the way of moving towards deprecation.

My biggest worry WRT deprecation of stabs is AIX.

jeff

References:
- [PATCH] Fix hot/cold partitioning with -gstabs{,+} (PR debug/81307)
  - From: Jakub Jelinek
- Re: [PATCH] Fix hot/cold partitioning with -gstabs{,+} (PR debug/81307)
  - From: Jeff Law
- Re: [PATCH] Fix hot/cold partitioning with -gstabs{,+} (PR debug/81307)
  - From: Richard Biener
- Re: [PATCH] Fix hot/cold partitioning with -gstabs{,+} (PR debug/81307)
  - From: Jim Wilson
- Re: [PATCH] Fix hot/cold partitioning with -gstabs{,+} (PR debug/81307)
  - From: Jim Wilson

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