On 02/05/2018 01:15 PM, Arnd Bergmann wrote: > On Mon, Feb 5, 2018 at 10:02 AM, Andrey Ryabinin > <[email protected]> wrote: >> >> >> On 02/02/2018 06:47 PM, Arnd Bergmann wrote: >>> gcc-8 complains about the prototype for this function: >>> >>> lib/ubsan.c:432:1: error: ignoring attribute 'noreturn' in declaration of a >>> built-in function '__ubsan_handle_builtin_unreachable' because it conflicts >>> with attribute 'const' [-Werror=attributes] >>> >> >> That's actually a bug in GCC. In GCC __ubsan_handle_builtin_unreachable >> declared >> with 'noreturn' and 'const' attributes: >> >> DEF_SANITIZER_BUILTIN(BUILT_IN_UBSAN_HANDLE_BUILTIN_UNREACHABLE, >> "__ubsan_handle_builtin_unreachable", >> BT_FN_VOID_PTR, >> ATTR_COLD_CONST_NORETURN_NOTHROW_LEAF_LIST) >> >> >> But const attribute doesn't make any sense for function that returns void or >> doesn't return at all. >> Given that gcc-8 has not released yet, it would be better to fix this bug >> there. > > Ok. Should I open a gcc bug, or will you take care of it? >
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=84210 > Arnd >
