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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