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From: Dmitry Vyukov <dvyukov@google.com>
To: Andreas Schwab <schwab@suse.de>
Cc: "Albert Ou" <aou@eecs.berkeley.edu>,
	"Björn Töpel" <bjorn.topel@gmail.com>,
	syzkaller <syzkaller@googlegroups.com>,
	"Palmer Dabbelt" <palmer@dabbelt.com>,
	"Paul Walmsley" <paul.walmsley@sifive.com>,
	"Tobias Klauser" <tklauser@distanz.ch>,
	linux-riscv <linux-riscv@lists.infradead.org>
Subject: Re: syzkaller on risc-v
Date: Tue, 30 Jun 2020 15:49:18 +0200
Message-ID: <CACT4Y+Z3hMtE0+BZVijxoBWrQDYiZBzM9gW6L7UAR74hsft4RQ@mail.gmail.com> (raw)
In-Reply-To: <mvmv9j8llai.fsf@suse.de>

On Tue, Jun 30, 2020 at 3:45 PM Andreas Schwab <schwab@suse.de> wrote:
> >> >> On Jun 30 2020, Dmitry Vyukov wrote:
> >> >>
> >> >> > KASAN would be a prerequisite for testing risc-v on syzbot.
> >> >>
> >> >> You need to implement the GCC support first.
> >> >
> >> > Interesting. Björn claimed KASAN works already.  And there is:
> >> >
> >> > commit 8ad8b72721d0f07fa02dbe71f901743f9c71c8e6
> >> > Author: Nick Hu
> >> > Date:   Mon Jan 6 10:38:32 2020 -0800
> >> >     riscv: Add KASAN support
> >> >
> >> > Is there any known issue with gcc?
> >>
> >> https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91441
> >>
> >> $ gcc -fsanitize=kernel-address -xc - </dev/null
> >> cc1: warning: ‘-fsanitize=address’ and ‘-fsanitize=kernel-address’ are not supported for this target
> >
> > https://gcc.gnu.org/bugzilla/show_bug.cgi?id=91441#c3
> > Fixed ;)
>
> Yes.  What's your point?

My point is that the GCC part seems to be implemented already and if
one wants to use KASAN, they don't need to implement GCC support
first. It looks like something on the kernel side broke since January.

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Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-30 12:48 Dmitry Vyukov
2020-06-30 12:57 ` Andreas Schwab
2020-06-30 13:26   ` Dmitry Vyukov
2020-06-30 13:33     ` Andreas Schwab
2020-06-30 13:40       ` Dmitry Vyukov
2020-06-30 13:45         ` Andreas Schwab
2020-06-30 13:49           ` Dmitry Vyukov [this message]
2020-06-30 13:52             ` Andreas Schwab
2020-07-01 10:42     ` Björn Töpel
2020-07-01 10:43       ` Björn Töpel
2020-07-01 11:34         ` Dmitry Vyukov
2020-07-01 13:52         ` Tobias Klauser
2020-06-30 13:03 ` Andreas Schwab
2020-06-30 13:26   ` David Abdurachmanov
2020-06-30 13:37     ` Colin Ian King
2020-06-30 13:57       ` David Abdurachmanov
2020-06-30 14:55         ` Andreas Schwab
2020-07-06 10:12         ` Colin Ian King
2020-06-30 13:07 ` Andreas Schwab
2020-06-30 13:20   ` David Abdurachmanov
2020-06-30 13:23     ` Dmitry Vyukov
2020-06-30 13:30     ` Andreas Schwab
2020-06-30 13:35       ` David Abdurachmanov
2020-06-30 13:43         ` Andreas Schwab
2020-07-02 22:00           ` Aurelien Jarno
2020-07-06  8:14             ` Andreas Schwab
2020-06-30 15:10 ` Tobias Klauser
2020-07-01 10:03   ` Dmitry Vyukov

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