From: Brian Inglis <Brian.Inglis@SystematicSw.ab.ca>
To: cygwin@cygwin.com
Subject: Re: [ANNOUNCEMENT] Test: {mingw64-{i686,x86_64}-,}gcc-11.1.0-0.1
Date: Wed, 12 May 2021 19:41:17 -0600 [thread overview]
Message-ID: <20f80861-efa7-5f65-8d70-94fa7793812d@SystematicSw.ab.ca> (raw)
In-Reply-To: <7abf399d-1844-16da-ce49-afe442509ad3@towo.net>
On 2021-05-12 12:30, Thomas Wolff wrote:
> Am 12.05.2021 um 12:42 schrieb Jonathan Yong via Cygwin:
>> On 5/12/21 9:14 AM, Thomas Wolff wrote:
>>> Am 10.05.2021 um 21:13 schrieb Achim Gratz:
>>>> The native and mingw-w64 cross compilers have been updated for both
>>>> architectures to the latest upstream release version:
>>>> gcc-11.1.0-0.1
>>> Are there any known problems with gcc 11? My program crashes if
>>> compiled with gcc -O2; gcc -O1 works, gcc 10 also works.
Do you mean that building mintty with gcc 11 -O2 breaks mintty?
>>>> mingw64-i686-gcc-11.1.0-0.1
>>>> mingw64-x86_64-gcc-11.1.0-0.1
>>>>
>>>> This test release includes libgccjit as a separate package for the
>>>> native toolchain on both architectures. Since Cygwin can't use ASLR any
>>>> nontrivial dynamic objects that get created in this way will likely need
>>>> to get rebased before they can be used (especially on 32bit). It is
>>>> unlikely that build systems recognize the need for doing that at the
>>>> moment.
>>>>
>>>> Please test these compilers with your packages and applications as
>>>> extensively as possible (especially if you are a Cygwin package
>>>> maintainer). Unless problems are found that necessitate another round
>>>> of testing, the plan is to bootstrap the support libraries with the new
>>>> toolchain and do a non-test update in about two to four weeks.
>> Does stripping the optimized executable fix things?
> No
>> Are you also able to produce a minimal test case?
> Hardly. Behaviour is totally erratic. If I let the stacktrace tell me where
> it crashed and make the function empty, it happens somewhere else...
--
Take care. Thanks, Brian Inglis, Calgary, Alberta, Canada
This email may be disturbing to some readers as it contains
too much technical detail. Reader discretion is advised.
[Data in binary units and prefixes, physical quantities in SI.]
next prev parent reply other threads:[~2021-05-13 1:41 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-10 19:13 Achim Gratz
2021-05-12 9:14 ` Thomas Wolff
2021-05-12 10:42 ` Jonathan Yong
2021-05-12 18:30 ` Thomas Wolff
2021-05-13 1:41 ` Brian Inglis [this message]
2021-05-13 2:22 ` Thomas Wolff
2021-05-12 18:53 ` Achim Gratz
2021-05-13 8:57 ` Thomas Wolff
2021-05-13 19:33 ` Hans-Bernhard Bröker
2021-05-13 21:57 ` Thomas Wolff
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20f80861-efa7-5f65-8d70-94fa7793812d@SystematicSw.ab.ca \
--to=brian.inglis@systematicsw.ab.ca \
--cc=cygwin@cygwin.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).