Andreas Schwab, le sam. 15 févr. 2020 14:51:24 +0100, a ecrit:
> On Feb 15 2020, Samuel Thibault wrote:
> > diff --git a/sysdeps/mach/hurd/i386/tls.h b/sysdeps/mach/hurd/i386/tls.h
> > index c0341ce2c9..7ec8c81a76 100644
> > --- a/sysdeps/mach/hurd/i386/tls.h
> > +++ b/sysdeps/mach/hurd/i386/tls.h
> > @@ -163,6 +163,114 @@ out:
> > : "i" (offsetof (tcbhead_t, tcb))); \
> > __tcb;})
> >
> > +/* Read member of the thread descriptor directly. */
> > +# define THREAD_GETMEM(descr, member) \
> > + ({ __typeof (descr->member) __value;
> > \
> > + if (sizeof (__value) == 1)
> > \
> > + asm volatile ("movb %%gs:%P2,%b0" \
> > + : "=q" (__value) \
> > + : "0" (0), "i" (offsetof (tcbhead_t, member))); \
> > + else if (sizeof (__value) == 4)
> > \
> > + asm volatile ("movl %%gs:%P1,%0"
> > \
> > + : "=r" (__value) \
> > + : "i" (offsetof (tcbhead_t, member))); \
> > + else \
> > + { \
> > + if (sizeof (__value) != 8) \
> > + /* There should not be any value with a size other than 1, \
> > + 4 or 8. */ \
> > + abort (); \
>
> _Static_assert?
I just copied from i386's tls.h. We should fix them at the same time :)
Samuel
