On Sat, 5 May 2001, Daniel Eischen wrote:
> On Sat, 5 May 2001, Andrew Gallatin wrote:
> >
> > Daniel Eischen writes:
> > >
> > > OK, thanks. Here's my guess at what should be changed for the Linux
> > > emulator. If this looks correct, I'll commit it.
> > >
> > > Hmm, I wonder how linuxthreads works under FreeBSD without this
> > > change...
> >
> > This breaks at least one version of the IBM JDK that I have
> > laying around..
> >
> > If anything, we may have two errors (at least partially) canceling
> > each other out. I think it needs more work/thought prior to
> > committing.
>
> We're still OK with the change to FreeBSDs native signal trampoline
> though, right? I'll hold off on the Linux emulator changes until
> we can figure out what the problem is.
I was confused about what Linux does. Now I think it only copies %fs
to the signal context struct. It loads %fs with USER_DS for the signal
handler. It passes the previous (process) value of %gs to the signal
handler. (Its early mistake of of switching %fs on every entry to the
kernel was moved to FreeBSD.)
Bruce
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