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Re: [RFC v2][PATCH 15/27] Add Infinity THREAD_SELF macros to sysdeps/sparc/nptl/tls.h
- From: Gary Benson <gbenson at redhat dot com>
- To: Andreas Schwab <schwab at suse dot de>
- Cc: libc-alpha at sourceware dot org
- Date: Mon, 13 Jun 2016 15:05:30 +0100
- Subject: Re: [RFC v2][PATCH 15/27] Add Infinity THREAD_SELF macros to sysdeps/sparc/nptl/tls.h
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- References: <1465814311-31470-1-git-send-email-gbenson at redhat dot com> <1465814311-31470-16-git-send-email-gbenson at redhat dot com> <mvm37oh489i dot fsf at hawking dot suse dot de>
Hi Andreas,
Andreas Schwab wrote:
> Gary Benson <gbenson@redhat.com> writes:
> > +/* Magic for Infinity to know how to do THREAD_SELF. */
> > +# define I8_THREAD_SELF I8_TS_REGISTER
> > +# if __WORDSIZE == 32
> > +# define I8_TS_REG_OFFSET 10 * 4
> > +# else
> > +# define I8_TS_REG_OFFSET (6 * 8) + (__WORDSIZE==64?0:4)
>
> __WORDSIZE is always 64 here.
I was trying to make sense of what sparc is doing for libthread_db
too. It has:
# define DB_THREAD_SELF \
REGISTER (32, 32, 10 * 4, 0) \
REGISTER (64, __WORDSIZE, (6 * 8) + (__WORDSIZE==64?0:4), 0)
Similarly s390 has:
# define DB_THREAD_SELF REGISTER (32, 32, 18 * 4, 0) \
REGISTER (64, __WORDSIZE, 18 * 8, 0)
Could the __WORDSIZE in both of those be replaced with 64?
Thanks,
Gary
--
http://gbenson.net/