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

[Richard Henderson]

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.


r~
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