From: Boqun Feng <boqun.feng@gmail.com>
To: Marco Elver <elver@google.com>
Cc: "Paul E. McKenney" <paulmck@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Dmitry Vyukov <dvyukov@google.com>,
Alexander Potapenko <glider@google.com>,
kasan-dev@googlegroups.com, linux-kernel@vger.kernel.org,
Nathan Chancellor <nathan@kernel.org>,
Nick Desaulniers <ndesaulniers@google.com>,
llvm@lists.linux.dev
Subject: Re: [PATCH 2/2] objtool, kcsan: Add volatile read/write instrumentation to whitelist
Date: Wed, 7 Sep 2022 10:44:03 -0700 [thread overview]
Message-ID: <YxjYY6SJhp1PtZos@boqun-archlinux> (raw)
In-Reply-To: <CANpmjNN2cch+HDVUYLD27sF9E39RaFrCf++KN=ZZ7j0DH8VaDw@mail.gmail.com>
On Wed, Sep 07, 2022 at 07:43:32PM +0200, Marco Elver wrote:
> On Wed, 7 Sept 2022 at 19:42, Boqun Feng <boqun.feng@gmail.com> wrote:
> >
> > On Wed, Sep 07, 2022 at 07:39:03PM +0200, Marco Elver wrote:
> > > Adds KCSAN's volatile barrier instrumentation to objtool's uaccess
> >
> > Confused. Are things like "__tsan_volatile_read4" considered as
> > "barrier" for KCSAN?
>
> No, it's what's emitted for READ_ONCE() and WRITE_ONCE().
>
Thanks for clarification, then I guess better to remove the word
"barrier" in the commit log?
Regards,
Boqun
> Thanks,
> -- Marco
next prev parent reply other threads:[~2022-09-07 17:45 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-07 17:39 [PATCH 1/2] kcsan: Instrument memcpy/memset/memmove with newer Clang Marco Elver
2022-09-07 17:39 ` [PATCH 2/2] objtool, kcsan: Add volatile read/write instrumentation to whitelist Marco Elver
2022-09-07 17:41 ` Boqun Feng
2022-09-07 17:43 ` Marco Elver
2022-09-07 17:44 ` Boqun Feng [this message]
2022-09-07 17:47 ` Marco Elver
2022-09-07 17:44 ` Marco Elver
2022-09-07 18:15 ` [PATCH 1/2] kcsan: Instrument memcpy/memset/memmove with newer Clang Boqun Feng
2022-09-07 20:52 ` Marco Elver
2022-09-08 6:05 ` Marco Elver
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=YxjYY6SJhp1PtZos@boqun-archlinux \
--to=boqun.feng@gmail.com \
--cc=dvyukov@google.com \
--cc=elver@google.com \
--cc=glider@google.com \
--cc=kasan-dev@googlegroups.com \
--cc=linux-kernel@vger.kernel.org \
--cc=llvm@lists.linux.dev \
--cc=mark.rutland@arm.com \
--cc=nathan@kernel.org \
--cc=ndesaulniers@google.com \
--cc=paulmck@kernel.org \
/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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.