On Thu, Oct 16, 2014 at 12:36:15PM +0400, Yury Gribov wrote:
> I disabled __asan_loadN/__asan_storeN because 4.9's Asan runtime doesn't
> support them. In a later patch I re-enable these functions specifically for
> KAsan.
> 2014-10-15 Yury Gribov <y.gri...@samsung.com>
>
> Backport from mainline
> 2014-05-30 Jakub Jelinek <ja...@redhat.com>
>
> * sanitizer.def (BUILT_IN_ASAN_REPORT_LOAD_N,
> BUILT_IN_ASAN_REPORT_STORE_N): New.
> * asan.c (struct asan_mem_ref): Change access_size type to
> HOST_WIDE_INT.
> (asan_mem_ref_init, asan_mem_ref_new, get_mem_refs_of_builtin_call,
> update_mem_ref_hash_table): Likewise.
> (asan_mem_ref_hasher::hash): Hash in a HWI.
> (report_error_func): Change size_in_bytes argument to HWI.
> Use *_N builtins if size_in_bytes is larger than 16 or not power of
> two.
> (build_shadow_mem_access): New function.
> (build_check_stmt): Use it. Change size_in_bytes argument to HWI.
> Handle size_in_bytes not power of two or larger than 16.
> (instrument_derefs): Don't give up if size_in_bytes is not
> power of two or is larger than 16.
Ok.
Jakub
