Mark Kettenis <mark.kette...@xs4all.nl> wrote:
> > I changed __amd64 to __amd64__ because I didn't find __powerpc. I'm
> > not sure, but one might move the list of arches to dlfcn/Makefile.inc
> > and do -DTIMEKEEP, like how thread/Makefile.inc does -DFUTEX. One
> > might drop the tc_get_timecount function pointer and just always call
> > the function #ifdef TIMEKEEP.
>
> Yes, we prefer the __xxx__ variants in OpenBSD code; thanks for
> catching that. The benefit of the TIMEKEEP define would be that we
> can eliminate the fallback code completely on architectures that don't
> implement this functionality.
...
> > --- lib/libc/dlfcn/init.c.before Sat May 30 23:26:35 2020
> > +++ lib/libc/dlfcn/init.c Sat May 30 18:00:45 2020
> > @@ -70,7 +70,7 @@
> >
> > /* provide definitions for these */
> > const dl_cb *_dl_cb __relro = NULL;
> > -#if defined(__amd64)
> > +#if defined(__amd64__) || defined(__powerpc__)
> > uint64_t (*const tc_get_timecount)(void) = tc_get_timecount_md;
> > #else
> > uint64_t (*const tc_get_timecount)(void) = NULL;
1) I think adding _md to the name is superflous. There will never
be a MI version, so tc_get_timecount() is enough.
2) I hope we can get away from #ifdef __ arch__.
Maybe this can be split into architectures which
a) have a function called tc_get_timecount()
or
b) tc_get_timecount is #define'd to NULL, though I don't
know which MD include file to do that in
