From: Sascha Hauer <s.hauer@pengutronix.de>
To: Ahmad Fatoum <a.fatoum@pengutronix.de>
Cc: barebox@lists.infradead.org
Subject: Re: [PATCH v2 00/10] Add initial support for -fsanitize={ubsan,asan}
Date: Thu, 5 Sep 2019 08:02:56 +0200 [thread overview]
Message-ID: <20190905060256.2l7mbcrjwbxsfxsz@pengutronix.de> (raw)
In-Reply-To: <979a1f83-5291-9bdf-21f4-48e1ea5cfeeb@pengutronix.de>
On Wed, Sep 04, 2019 at 09:52:52AM +0200, Ahmad Fatoum wrote:
> On 9/4/19 8:53 AM, Sascha Hauer wrote:
> > On Tue, Aug 27, 2019 at 05:09:08PM +0200, Ahmad Fatoum wrote:
> >> This series adds undefined behavior and address sanitizer support to
> >> barebox. Both are fully functional on sandbox, where they are also used
> >> to implement dump_stack() now.
> >>
> >> I haven't yet read about how Kernel AddressSanitizer works, so this one
> >> only works on sandbox via libasan for now.
> >>
> >> The undefined behavior sanitizer depends on the compiler instrumenting
> >> potential pitfalls and then calling the routines in lib/ubsan.c if it
> >> catches something undefined, so that should readily work on other arches
> >> as well. I tested it on sandbox and the i.MX6Q so far.
> >>
> >> Eventually, it should be possible to enable it for all the non-PBL stuff
> >> with a single Kconfig option, but for now you need to explicitly add a
> >>
> >> UBSAN_SANITIZE_myfile.o := y
> >>
> >> in the respective Makefile. Enabling it wholesale doesn't yet work on
> >> ARM, I suspect it might be due to binary size.
> >>
> >> Changes in v2:
> >> v1 was incomplete and sent our more by mistake,
> >> so no changelog.
> >
> > Applied, thanks
>
> Could you swap patch 08 and 09? Patch 08 depends on the KASAN symbol
> in the Kconfig option of SANDBOX_UNWIND, but this symbol is introduced
> in patch 09..
Just did that.
Sascha
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prev parent reply other threads:[~2019-09-05 6:03 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-27 15:09 Ahmad Fatoum
2019-08-27 15:09 ` [PATCH v2 01/10] Kconfig: create Kconfig symbol for ARCH_HAS_STACK_DUMP Ahmad Fatoum
2019-08-27 15:09 ` [PATCH v2 02/10] Kconfig: create Kconfig symbol for ARCH_HAS_DATA_ABORT_MASK Ahmad Fatoum
2019-08-27 15:09 ` [PATCH v2 03/10] blackfin: delete unused <asm/barebox.h> definitions Ahmad Fatoum
2019-08-27 15:09 ` [PATCH v2 04/10] Kconfig: retire empty <asm/barebox.h> Ahmad Fatoum
2019-08-27 15:09 ` [PATCH v2 05/10] lib: add HAVE_EFFICIENT_UNALIGNED_ACCESS Kconfig option Ahmad Fatoum
2019-08-27 15:09 ` [PATCH v2 06/10] common: add generic CONFIG_UBSAN plumbing Ahmad Fatoum
2019-08-27 15:09 ` [PATCH v2 07/10] commands: add intentionally UB triggering ubsan command Ahmad Fatoum
2019-08-27 15:09 ` [PATCH v2 08/10] sandbox: use sanitizer unwind for dump_stack if available Ahmad Fatoum
2019-08-27 15:09 ` [PATCH v2 09/10] common: add generic CONFIG_KASAN option Ahmad Fatoum
2019-08-27 15:09 ` [PATCH v2 10/10] sandbox: support Address and UndefinedBehavior sanitizers Ahmad Fatoum
2019-09-04 6:53 ` [PATCH v2 00/10] Add initial support for -fsanitize={ubsan,asan} Sascha Hauer
2019-09-04 7:52 ` Ahmad Fatoum
2019-09-05 6:02 ` Sascha Hauer [this message]
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