On Sun, Sep 17, 2023 at 05:07:18PM +0200, Thomas Weißschuh wrote:
> On 2023-09-17 11:48:27+0200, Willy Tarreau wrote:
> > [..]
> > > Maybe the macro-equivalent of this?
> > >
> > > static inline int __nolibc_enosys(...)
> > > {
> > > return -ENOSYS;
> > > }
> > >
> > > The only-vararg function unfortunately needs C23 so we can't use it.
> > >
> > > It's clear to the users that this is about ENOSYS and we don't need a
> > > bunch of new macros similar.
> >
> > I like it, I didn't think about varargs, it's an excellent idea! Let's
> > just do simpler, start with a first arg "syscall_num" that we may later
> > reuse for debugging, and just mark this one unused:
> >
> > static inline int __nolibc_enosys(int syscall_num, ...)
> > {
> > (void)syscall_num;
> > return -ENOSYS;
> > }
>
> But which syscall_num to use, as the point of __nolibc_enosys() would be
> that no syscall number is available and the defines are missing.
good point :-)
> For debugging we could add a string argument, though.
That works for me.
Willy
