Re: [PATCH] ARM: Convert BUG() to use unreachable()

[Paolo Bonzini]

On 12/17/2009 06:17 PM, Richard Guenther wrote:

It shouldn't as *(int *)0 = 0; might trap.  But if you want to be sure
use
    __builtin_trap ();
instead for the whole sequence (the unreachable is implied then).
GCC choses a size-optimal trap representation for your target then.

Agree that it shouldn't but just to be sure I'd use

  *(volatile int *)0 = 0;
  unreachable ();

Paolo