arm64: dose arm64 support the sysfs system call?

[wangyufen]

On 2014/11/21 19:10, Arnd Bergmann wrote:
> On Friday 21 November 2014 15:27:02 wangyufen wrote:
>> Hi,
>>
>> I did ltp test on arm64, the sysfs testcases failed:
>>
>>     sysfs01     0  TWARN  :  This test can only run on kernels that support the sysfs system call
>>
>> because the __NR_sysfs didn't define in aarch64
>>
>> Dose anyone know what number the sysfs system call is in aarch64?
> 
> It's disabled of course, because we don't support ancient libc
> implementations. No modern Linux port has this.
> 
> 	Arnd
> 
> 

__NR__lchown32，__NR_lstat，__NR__sysctl，__NR_vserver have similar problems.

Dose aarch64 support those system call?

 How I distinguish the ancient libc implementations.