http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55949
--- Comment #3 from Ryan Mansfield <rmansfield at qnx dot com> 2013-01-12
01:03:03 UTC ---
(In reply to comment #2)
> Looks like a bug in whatever <string.h> headers you are using.
> The second parameter for __builtin_object_size for memcpy should be always 0,
> not __USE_FORTIFY_LEVEL > 1 (that is used for functions like strcpy and has
> the
> additional restriction that the copying isn't allowed to cross array/field
> boundaries).
> In glibc there is
> #define __bos(ptr) __builtin_object_size (ptr, __USE_FORTIFY_LEVEL > 1)
> #define __bos0(ptr) __builtin_object_size (ptr, 0)
> and
> __extern_always_inline void *
> __NTH (memcpy (void *__restrict __dest, __const void *__restrict __src,
> size_t __len))
> {
> return __builtin___memcpy_chk (__dest, __src, __len, __bos0 (__dest));
> }
OK, thanks. I misread the object size checking docs then.
