On Fri, Nov 23, 2012 at 10:59 AM, Uros Bizjak <ubiz...@gmail.com> wrote: > Hello! > >> This patch allocates extra 16 bytes for -fsanitize=address so that >> asan won't report read beyond memory buffer. It is used by >> bootstrap-asan. OK to install? > > /* Resize buffer if we allocated substantially too much, or if we > - haven't enough space for the \n-terminator. */ > + haven't enough space for the \n-terminator. Allocate extra 16 > + bytes for -fsanitize=address. */ > > I guess that extra _15_ bytes should be enough? The maximum we need > for SSE stringops is additional 15 bytes, when only the first byte is > allocated in the 16byte bundle. >
If we need to clear the extra bytes, clearing 16 bytes can be faster than 16 bytes. -- H.J.
