[fpc-devel] Threading support and C library under Linux/Unix

[Henry Vermaak]

On 24 June 2010 09:16, Michael Schnell <mschnell at lumino.de> wrote:
> On 06/24/2010 10:10 AM, Daniël Mantione wrote:
>>
>> Yes, but in a multi-cpu system giving up the timeslice is a very bad
>> idea, because the lock might be released a few clock cycles later by
>> the other cpu; you would waste the rest of time slice while you could
>> be crunching
> Of course you are right. But this code is only used for ARM lower than
> v6 (ARMV6 provides ldrx which is fine, anyway). Are there really
> multi-CPU ARMv5 or even ARMv4 systems ? They would work decently with

SMP is not supported by the kernel for arch < armv6.