On Thu, Mar 2, 2023 at 4:13 PM Marco Elver <elver@xxxxxxxxxx> wrote: > > On Thu, 2 Mar 2023 at 15:28, Alexander Potapenko <glider@xxxxxxxxxx> wrote: > > > > On Thu, Mar 2, 2023 at 12:14 PM Marco Elver <elver@xxxxxxxxxx> wrote: > > > > > > On Wed, 1 Mar 2023 at 15:39, Alexander Potapenko <glider@xxxxxxxxxx> wrote: > > > > > > > > KMSAN should be overriding calls to memset/memcpy/memmove and their > > > > > > You mean that the compiler will override calls? > > > All supported compilers that have fsanitize=kernel-memory replace > > > memintrinsics with __msan_mem*() calls, right? > > > > Right. Changed to: > > > > KMSAN already replaces calls to to memset/memcpy/memmove and their > > __builtin_ versions with __msan_memset/__msan_memcpy/__msan_memmove in > > instrumented files, so there is no need to override them. > > But it's not KMSAN - KMSAN is the combined end result of runtime and > compiler - in this case we need to be specific and point out it's the > compiler that's doing it. There is no code in the Linux kernel that > does this replacement. Agreed. I'll replace with "clang -fsanitize=kernel-memory"
