From: Andrey Konovalov <andreyknvl@google.com>
To: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Cc: Mark Rutland <mark.rutland@arm.com>,
Kate Stewart <kstewart@linuxfoundation.org>,
"open list:DOCUMENTATION" <linux-doc@vger.kernel.org>,
Catalin Marinas <catalin.marinas@arm.com>,
Will Deacon <will.deacon@arm.com>,
Paul Lawrence <paullawrence@google.com>,
Linux Memory Management List <linux-mm@kvack.org>,
Alexander Potapenko <glider@google.com>,
Chintan Pandya <cpandya@codeaurora.org>,
Christoph Lameter <cl@linux.com>, Ingo Molnar <mingo@kernel.org>,
Jacob Bramley <Jacob.Bramley@arm.com>,
Ruben Ayrapetyan <Ruben.Ayrapetyan@arm.com>,
Mark Brand <markbrand@google.com>,
kasan-dev <kasan-dev@googlegroups.com>,
linux-sparse@vger.kernel.org,
Geert Uytterhoeven <geert@linux-m68k.org>,
Linux ARM <linux-arm-kernel@lists.infradead.org>,
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"Eric W . Biederman" <ebiederm@xmission.com>,
Lee Smith <Lee.Smith@arm.com>,
Andrew Morton <akpm@linux-foundation.org>,
"Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Subject: Re: [PATCH v13 05/25] kasan: add CONFIG_KASAN_GENERIC and CONFIG_KASAN_SW_TAGS
Date: Tue, 11 Dec 2018 17:02:42 +0100 [thread overview]
Message-ID: <CAAeHK+y0AzO8r21L=9HftHuoTXMuTjkZYJOZ6hKZqCEQOjygHQ@mail.gmail.com> (raw)
In-Reply-To: <20181211152840.ezjujzpyz5z6fd2d@ltop.local>
On Tue, Dec 11, 2018 at 4:28 PM Luc Van Oostenryck
<luc.vanoostenryck@gmail.com> wrote:
>
> On Thu, Dec 06, 2018 at 01:24:23PM +0100, Andrey Konovalov wrote:
> > diff --git a/include/linux/compiler-clang.h b/include/linux/compiler-clang.h
> > index 3e7dafb3ea80..39f668d5066b 100644
> > --- a/include/linux/compiler-clang.h
> > +++ b/include/linux/compiler-clang.h
> > @@ -16,9 +16,13 @@
> > /* all clang versions usable with the kernel support KASAN ABI version 5 */
> > #define KASAN_ABI_VERSION 5
> >
> > +#if __has_feature(address_sanitizer) || __has_feature(hwaddress_sanitizer)
> > /* emulate gcc's __SANITIZE_ADDRESS__ flag */
> > -#if __has_feature(address_sanitizer)
> > #define __SANITIZE_ADDRESS__
> > +#define __no_sanitize_address \
> > + __attribute__((no_sanitize("address", "hwaddress")))
> > +#else
> > +#define __no_sanitize_address
> > #endif
> >
> > /*
> > diff --git a/include/linux/compiler-gcc.h b/include/linux/compiler-gcc.h
> > index 2010493e1040..5776da43da97 100644
> > --- a/include/linux/compiler-gcc.h
> > +++ b/include/linux/compiler-gcc.h
> > @@ -143,6 +143,12 @@
> > #define KASAN_ABI_VERSION 3
> > #endif
> >
> > +#if __has_attribute(__no_sanitize_address__)
> > +#define __no_sanitize_address __attribute__((no_sanitize_address))
> > +#else
> > +#define __no_sanitize_address
> > +#endif
>
> Not really important but it's the name with leading and trailing
> underscores that is tested with __has_attribute() but then it's
> the naked 'no_sanitize_address' that is used in the attribute.
Hi Luc,
You're right. This shouldn't be important though, since "__" in
attribute names are optional AFAIK. It might make sense to fix it as a
separate patch when this series is merged.
Thanks!
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next prev parent reply other threads:[~2018-12-11 16:03 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-06 12:24 [PATCH v13 00/25] kasan: add software tag-based mode for arm64 Andrey Konovalov
2018-12-06 12:24 ` [PATCH v13 01/25] kasan, mm: change hooks signatures Andrey Konovalov
2018-12-06 12:24 ` [PATCH v13 02/25] kasan, slub: handle pointer tags in early_kmem_cache_node_alloc Andrey Konovalov
2018-12-06 12:24 ` [PATCH v13 03/25] kasan: move common generic and tag-based code to common.c Andrey Konovalov
2018-12-06 12:24 ` [PATCH v13 04/25] kasan: rename source files to reflect the new naming scheme Andrey Konovalov
2018-12-06 12:24 ` [PATCH v13 05/25] kasan: add CONFIG_KASAN_GENERIC and CONFIG_KASAN_SW_TAGS Andrey Konovalov
2018-12-11 15:28 ` Luc Van Oostenryck
2018-12-11 16:02 ` Andrey Konovalov [this message]
2018-12-06 12:24 ` [PATCH v13 06/25] kasan, arm64: adjust shadow size for tag-based mode Andrey Konovalov
2018-12-06 12:24 ` [PATCH v13 07/25] kasan: rename kasan_zero_page to kasan_early_shadow_page Andrey Konovalov
2018-12-06 12:24 ` [PATCH v13 08/25] kasan: initialize shadow to 0xff for tag-based mode Andrey Konovalov
[not found] ` <CAP=VYLo-o8vpGrpM_+0jdvxLC9uxw+F7_OtsSfRyq24HR1dDwA@mail.gmail.com>
2018-12-10 12:12 ` Andrey Konovalov
2018-12-06 12:24 ` [PATCH v13 09/25] arm64: move untagged_addr macro from uaccess.h to memory.h Andrey Konovalov
2018-12-06 12:24 ` [PATCH v13 10/25] kasan: add tag related helper functions Andrey Konovalov
2018-12-06 12:24 ` [PATCH v13 11/25] kasan, arm64: untag address in _virt_addr_is_linear Andrey Konovalov
2018-12-06 12:24 ` [PATCH v13 12/25] kasan: preassign tags to objects with ctors or SLAB_TYPESAFE_BY_RCU Andrey Konovalov
2018-12-06 12:24 ` [PATCH v13 13/25] kasan, arm64: fix up fault handling logic Andrey Konovalov
2018-12-06 12:24 ` [PATCH v13 14/25] kasan, arm64: enable top byte ignore for the kernel Andrey Konovalov
2018-12-06 12:24 ` [PATCH v13 15/25] kasan, mm: perform untagged pointers comparison in krealloc Andrey Konovalov
2018-12-06 12:24 ` [PATCH v13 16/25] kasan: split out generic_report.c from report.c Andrey Konovalov
2018-12-06 12:24 ` [PATCH v13 17/25] kasan: add bug reporting routines for tag-based mode Andrey Konovalov
2018-12-06 12:24 ` [PATCH v13 18/25] mm: move obj_to_index to include/linux/slab_def.h Andrey Konovalov
2018-12-06 12:24 ` [PATCH v13 19/25] kasan: add hooks implementation for tag-based mode Andrey Konovalov
2018-12-11 16:22 ` Vincenzo Frascino
2018-12-12 15:04 ` Andrey Konovalov
2018-12-14 12:35 ` Vincenzo Frascino
2018-12-17 19:33 ` Andrey Konovalov
2018-12-17 20:38 ` Andrew Morton
2018-12-18 13:31 ` Andrey Konovalov
2018-12-06 12:24 ` [PATCH v13 20/25] kasan, arm64: add brk handler for inline instrumentation Andrey Konovalov
2018-12-06 12:24 ` [PATCH v13 21/25] kasan, mm, arm64: tag non slab memory allocated via pagealloc Andrey Konovalov
2018-12-06 12:24 ` [PATCH v13 22/25] kasan: add __must_check annotations to kasan hooks Andrey Konovalov
2018-12-06 12:24 ` [PATCH v13 23/25] kasan, arm64: select HAVE_ARCH_KASAN_SW_TAGS Andrey Konovalov
2018-12-06 12:24 ` [PATCH v13 24/25] kasan: update documentation Andrey Konovalov
2018-12-06 12:24 ` [PATCH v13 25/25] kasan: add SPDX-License-Identifier mark to source files Andrey Konovalov
2018-12-11 15:18 ` [PATCH v13 00/25] kasan: add software tag-based mode for arm64 Will Deacon
2018-12-11 15:57 ` Andrey Konovalov
2018-12-11 16:00 ` Will Deacon
2018-12-11 21:44 ` Andrew Morton
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