Re: CVS commit: src/sys/kern

[christos%astron.com@localhost (Christos Zoulas)]

In article <20150927143642.GB23289%snowdrop.l8s.co.uk@localhost>,
David Laight  <david%l8s.co.uk@localhost> wrote:
>On Thu, Sep 24, 2015 at 10:30:52AM -0400, Christos Zoulas wrote:
>> Module Name:	src
>> Committed By:	christos
>> Date:		Thu Sep 24 14:30:52 UTC 2015
>> 
>> Modified Files:
>> 	src/sys/kern: makesyscalls.sh
>> 
>> Log Message:
>> create an array of altsyscallnames, which are the syscall names that the
>> libc api uses. For example syscallnames[293] = "__sigprocmask14",
>> altsyscallnames[293] = "sigprocmask". This is so that things like dtrace
>> can use the system call names everyone uses. The array is sparse; if the
>> names were the same (or for compat names) they are not copied and the array
>> has NULL for them.
>
>Hmmmm....
>Isn't that going to be even more confusing since you won't know
>whether a 'compat' (or old) system call is being used which might
>have issues in the compatibility layer itself.

Yes, you always do know. All the compat names start with compat_. The
kernel names don't need to match what userland needs.

christos