From: Cyrill Gorcunov <gorcunov@gmail.com>
To: Vladislav Shpilevoy <v.shpilevoy@tarantool.org>
Cc: tarantool-patches@dev.tarantool.org
Subject: Re: [Tarantool-patches] [PATCH 03/10] cmake: add option ENABLE_UB_SANITIZER
Date: Mon, 8 Jun 2020 15:53:41 +0300 [thread overview]
Message-ID: <20200608125341.GD134822@grain> (raw)
In-Reply-To: <2e24204c8064d0c81e1baf81e9e23247199d083f.1590093222.git.v.shpilevoy@tarantool.org>
On Thu, May 21, 2020 at 10:37:26PM +0200, Vladislav Shpilevoy wrote:
> Clang has a built-in sanitizer for undefined behaviour. Such as
> wrong memory alignment, array boundaries violation, 0 division,
> bool values with non standard content, etc.
>
> The sanitizer emits runtime checks which lead to either crash, or
> a trap, or a warning print, depending on what is chosen.
>
> The patch makes it possible to turn the sanitizer on and catch
> UBs. The only supported UB so far is alignment check. Other types
> can be added gradually, along with fixing bugs which they find.
>
> Sometimes it happens that unaligned memory access is done
> intentionally, or can't be simply fixed. To disable the sanitizer
> for such places an attribute 'no_sanitize' can be used. It is
> added inside a macro NOSANITIZE_ALIGN.
>
> Part of #4609
Reviewed-by: Cyrill Gorcunov <gorcunov@gmail.com>
next prev parent reply other threads:[~2020-06-08 12:53 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-21 20:37 [Tarantool-patches] [PATCH 00/10] Sanitize unaligned access Vladislav Shpilevoy
2020-05-21 20:37 ` [Tarantool-patches] [PATCH 01/10] small: sanitized rlist and new region API Vladislav Shpilevoy
2020-06-08 12:17 ` Cyrill Gorcunov
2020-05-21 20:37 ` [Tarantool-patches] [PATCH 10/10] xrow: use unaligned store operation in xrow_to_iovec() Vladislav Shpilevoy
2020-06-08 12:26 ` Cyrill Gorcunov
2020-05-21 20:37 ` [Tarantool-patches] [PATCH 02/10] cmake: ignore warnings on alignof() and offsetof() Vladislav Shpilevoy
2020-06-08 12:52 ` Cyrill Gorcunov
2020-05-21 20:37 ` [Tarantool-patches] [PATCH 03/10] cmake: add option ENABLE_UB_SANITIZER Vladislav Shpilevoy
2020-06-08 12:53 ` Cyrill Gorcunov [this message]
2020-05-21 20:37 ` [Tarantool-patches] [PATCH 04/10] crc32: disable align sanitizer Vladislav Shpilevoy
2020-06-08 13:58 ` Cyrill Gorcunov
2020-05-21 20:37 ` [Tarantool-patches] [PATCH 05/10] sql: make BtCursor's memory aligned Vladislav Shpilevoy
2020-06-08 13:58 ` Cyrill Gorcunov
2020-05-21 20:37 ` [Tarantool-patches] [PATCH 06/10] region: use aligned allocations where necessary Vladislav Shpilevoy
2020-06-08 14:00 ` Cyrill Gorcunov
2020-05-21 20:37 ` [Tarantool-patches] [PATCH 07/10] vinyl: align statements and bps tree extents Vladislav Shpilevoy
2020-06-08 14:02 ` Cyrill Gorcunov
2020-05-21 20:37 ` [Tarantool-patches] [PATCH 08/10] tuple: use unaligned store-load for field map Vladislav Shpilevoy
2020-06-08 14:04 ` Cyrill Gorcunov
2020-05-21 20:37 ` [Tarantool-patches] [PATCH 09/10] port: make port_c_entry not PACKED Vladislav Shpilevoy
2020-06-08 14:04 ` Cyrill Gorcunov
2020-05-21 22:25 ` [Tarantool-patches] [PATCH 00/10] Sanitize unaligned access Sergey Bronnikov
2020-05-27 23:33 ` Vladislav Shpilevoy
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