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