[lkml]   [2009]   [Dec]   [21]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
Messages in this thread
SubjectRe: [PATCH] ARM: Convert BUG() to use unreachable()
On Mon, Dec 21, 2009 at 11:30:43AM -0800, Richard Henderson wrote:
> On 12/17/2009 10:17 AM, Russell King - ARM Linux wrote:
>> How is "size-optimal trap" defined?
> E.g. Sparc and MIPS have "tcc" instructions that trap based on the
> condition codes, and so we eliminate the branch. That's the only
> optimization we apply with __builtin_trap.
>> Let me put it another way: I want this function to terminate with an
>> explicit NULL pointer dereference in every case.
> Then just use that.

That's precisely what we have been using for many years.

 \ /
  Last update: 2009-12-21 21:15    [W:0.095 / U:2.084 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site