From: Alexander Monakov <amonakov@ispras.ru>
To: musl@lists.openwall.com
Subject: Re: open issues
Date: Wed, 30 Aug 2017 22:37:44 +0300 (MSK) [thread overview]
Message-ID: <alpine.LNX.2.20.13.1708302232430.21360@monopod.intra.ispras.ru> (raw)
In-Reply-To: <20170830192038.GE1627@brightrain.aerifal.cx>
On Wed, 30 Aug 2017, Rich Felker wrote:
> Great find. I wonder if compiler/diagnostic tool ppl are aware of this
> extension to the C language that XSI imposes. It definitely affects
> things like UBSan, and of course compilers' optimization based on
> assumptions that UB doesn't happen.
If musl is going to use this throughout the implementation, I think it
should be documented somewhere: it's of course fair game to use this
guarantee in implementation of interfaces that are themselves XSI-shaded,
but using it to implement more basic interfaces is less obviously so.
Alexander
next prev parent reply other threads:[~2017-08-30 19:37 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-08-27 4:36 Szabolcs Nagy
2017-08-27 6:07 ` A. Wilcox
2017-08-30 1:30 ` Rich Felker
2018-01-04 12:01 ` Alexander Monakov
2018-01-09 17:10 ` Rich Felker
2017-08-30 2:06 ` Rich Felker
2017-08-30 8:26 ` Pascal Cuoq
2017-08-30 19:20 ` Rich Felker
2017-08-30 19:37 ` Alexander Monakov [this message]
2017-08-30 20:10 ` Rich Felker
2017-08-30 19:51 ` A. Wilcox
2017-08-30 22:08 ` Rich Felker
2017-09-04 22:00 ` Szabolcs Nagy
2017-09-07 2:18 ` Rich Felker
2017-09-07 2:32 ` Rich Felker
2017-09-22 22:03 ` Szabolcs Nagy
2017-10-14 2:59 ` Rich Felker
2017-10-21 16:27 ` Rich Felker
2017-08-30 19:53 ` Stefan Sedich
2017-08-31 9:34 ` Szabolcs Nagy
2017-08-31 15:37 ` Stefan Sedich
2017-08-31 16:04 ` Rich Felker
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=alpine.LNX.2.20.13.1708302232430.21360@monopod.intra.ispras.ru \
--to=amonakov@ispras.ru \
--cc=musl@lists.openwall.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.
Code repositories for project(s) associated with this public inbox
https://git.vuxu.org/mirror/musl/
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 NNTP newsgroup(s).