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Date: Wed, 13 Jan 2016 00:09:56 +0300
From: Alexander Cherepanov <ch3root@...nwall.com>
To: musl@...ts.openwall.com
Subject: Re: string word-at-a-time and atomic.h FAQ on twitter
On 2016-01-13 00:02, Alexander Cherepanov wrote:
> On 2016-01-05 19:46, Szabolcs Nagy wrote:
>> i think compiler attributes should be used here on compilers that
>> might break the code, but there is no attribute for this kind of
>> oob access yet (although may_alias attribute is missing here too
>> and should be added like in other string functions).
>
> Perhaps the noclone function attribute could be used in the meantime?
>
> https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-g_t_0040code_007bnoclone_007d-function-attribute-3205
Probably together with the noinline attribute...
Another attribute which looks relevant is no_sanitize_address.
https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-g_t_0040code_007bno_005fsanitize_005faddress_007d-function-attribute-3199
--
Alexander Cherepanov
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