Re: Regarding the ULTRIX and OSF1 compats

Le 24/03/2019 à 00:41, Thor Lancelot Simon a écrit :
> On Sun, Mar 17, 2019 at 05:41:18AM +0800, Paul Goyette wrote:
>> On Sat, 16 Mar 2019, Maxime Villard wrote:
>>
>>> Regarding COMPAT_OSF1: I'm not totally sure, but it seems that Alpha's
>>> COMPAT_LINUX uses COMPAT_OSF1 as dependency (even if there is no proper
>>> dependency in the module), because there are osf1_* calls. Some more
>>> compat mess to untangle, it seems...
>>>
>>> In all cases, it's only a few functions that are just wrappers, so it
>>> probably shouldn't be too complicated to solve.
>>
>> It's a total of 15 functions (I generated this list by building an alpha
>> GENERIC kernel with COMPAT_OSF1 removed):
>>
>>          osf1_sys_wait4
>>          osf1_sys_mount
> 
> [...]
> 
> There's a funny historical reason for this -- Linux on Alpha originally
> used OSF/1 syscall numbering and args for its own native syscalls.
> 
> No, our implementation need not actually reflect that -- but it's an
> interesting historical detail perhaps we should write down somewhere.

Does that mean we don't need these syscalls?