On Thu, Apr 2, 2015 at 1:46 AM, Florian Weimer <fwei...@redhat.com> wrote: > On 04/02/2015 10:40 AM, Andrew Haley wrote: > >> So, max_align_t is an object type, and therefore malloc returns a >> pointer suitable for max_align_t. > > Then the GCC definition of max_align_t is incorrect, it should be 8 on > x86_64 GNU/Linux, because traditionally, that's what mallocs implement > for this architecture. (dlmalloc in glibc is an exception.) >
x86-64 psABI specifies that a memory >= 16 bytes is 16-byte aligned. If malloc doesn't do it, it is a broken. -- H.J.
