Messages in this thread | | | Subject | Re: [Fastboot] Re: [announce] kexec for linux 2.6.6 | From | (Eric W. Biederman) | Date | 12 May 2004 00:18:12 -0600 |
| |
Ulrich Drepper <drepper@redhat.com> writes:
> Randy.Dunlap wrote: > > > And if anyone has suggestions for handling a variable/moving > > syscall number (target), I'm interested in hearing them. > > If all architectures would finally get a vdso implementation you could > just add the necessary stub in the vdso, add a symbol in the symbol > table of the vdso, and use in the userlevel code > > sym = dlsym (RTLD_DEFAULT, "the_symbol_name") > > If the returned value is not NULL the symbol exists. > > I've described this many times as one of the huge advantages of vdsos, > hopefully this time it clicks.
For the momen the only finished port is x86, so we should be able to do that, it would make the kernel patch a little bigger though. Last time I saw that conversation I thought you didn't like symbols in the vdso for syscalls because it slowed things down.
If no one is opposed that sounds like a fairly sane idea.
Eric - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |