Re: zero-size malloc and ps: kvm_getprocs: Bad address

["Simon 'corecode' Schubert" <corecode@xxxxxxxxxxxx>]

YONETANI Tomokazu wrote:
> Hello.
> On recent -DEVELOPMENT ps command displays a non-intuitive error message
> on a non-existent pid:
>   ps: kvm_getprocs: Bad address
>
> Apparently the recent malloc reimplementation has changed malloc(3) family
> so as malloc(0) now returns a pointer such that useracc() returns EFAULT
> for it.

I think we should make malloc(0) return a valid pointer.  Whether to 
return NULL or a pointer is implementation specific, and I believe our 
previous malloc, and most other mallocs out there indeed return a pointer 
and don't return NULL.

cheers
  simon

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