From mboxrd@z Thu Jan 1 00:00:00 1970 X-Msuck: nntp://news.gmane.org/gmane.linux.lib.musl.general/5903 Path: news.gmane.org!not-for-mail From: Jens Gustedt Newsgroups: gmane.linux.lib.musl.general Subject: Re: Multi-threaded performance progress Date: Tue, 26 Aug 2014 13:09:25 +0200 Message-ID: <1409051365.8054.19.camel@eris.loria.fr> References: <20140826034321.GA13999@brightrain.aerifal.cx> <1409036654.4835.14.camel@eris.loria.fr> <20140826104433.GW22308@port70.net> Reply-To: musl@lists.openwall.com NNTP-Posting-Host: plane.gmane.org Mime-Version: 1.0 Content-Type: multipart/signed; micalg="pgp-sha1"; protocol="application/pgp-signature"; boundary="=-t81to5vDcGzvDjXG/GmE" X-Trace: ger.gmane.org 1409051389 9891 80.91.229.3 (26 Aug 2014 11:09:49 GMT) X-Complaints-To: usenet@ger.gmane.org NNTP-Posting-Date: Tue, 26 Aug 2014 11:09:49 +0000 (UTC) To: musl@lists.openwall.com Original-X-From: musl-return-5909-gllmg-musl=m.gmane.org@lists.openwall.com Tue Aug 26 13:09:43 2014 Return-path: 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Cj15cu23XZI4/826Px/xqB37z547sPH374oOvnKTsOb+1zuCoImZARM8ZiLlKkXcWOcoFRJ+Do/CwFO4e2DEe+9Ti+ZXA8ny/cU+X4bMKRZxZIVEiqXI6/+NKuUzPHb7z40ovnX3zx+Ctuq38HyuqWG7Tu+A0AAAAASUVORK5CYII= X-Mailer: Evolution 3.4.4-3 Xref: news.gmane.org gmane.linux.lib.musl.general:5903 Archived-At: --=-t81to5vDcGzvDjXG/GmE Content-Type: text/plain; charset="ISO-8859-1" Content-Transfer-Encoding: quoted-printable Hello, Am Dienstag, den 26.08.2014, 12:44 +0200 schrieb Szabolcs Nagy: > * Jens Gustedt [2014-08-26 09:04:14 +0200]: > > - one or two simple functions, such as the timespec_get that I posted > > - if we don't have C11 threads the feature test macro __STDC NO_THREAD= __ > > - perhaps some other feature test macros for unsupported features >=20 > further missing c11 things: >=20 > time.h needs TIME_UTC for timespec_get base parameter I had that in my patch for timespec_get, too. This would perhaps need some short discussion for the policy to apply. It would be nice to propose all the POSIX clocks that musl implements as extensions. That is explicitly allowed by C. Unfortunately the constraint from C11 is that the TIME_XXX values can't be 0, so the current CLOCK_XXX values don't work and we'd have to translate. I had chosen the easy way, any TIME value is interpreted as CLOCK_REALTIME, and that value is just echoed as return value of the function. > stdalign.h should only define alignas and alignof ifndef c++ > assert.h needs static_assert ifndef c++ > float.h needs *_DECIMAL_DIG and *_HAS_SUBNORM (i have a patch for this) > uchar.h ah, yes, this is probably still a bit of work to do > stdatomic.h (or __STDC_NO_ATOMICS__) Not necessarily, this is primarily a compiler feature and not a library feature. With gcc 4.9 this works. (Well, with some hickups, because they use POSIX lock features under the hood in libatomic, instead of implementing them properly with atomic_flag.) gcc version before that don't have sufficient C11 support, anyhow. In particular I think that _Generic is only implemented from 4.9 onward. On a longer term, we could think of replacing libatomic calls, too, but this isn't urgent at all. > (thread_local, alignas, alignof, static_assert, noreturn are keywords > in c++, stdnoreturn.h is not specified by c++14 so that probably does > not need the ifndef but the others do) right Jens --=20 :: INRIA Nancy Grand Est ::: AlGorille ::: ICube/ICPS ::: :: ::::::::::::::: office Strasbourg : +33 368854536 :: :: :::::::::::::::::::::: gsm France : +33 651400183 :: :: ::::::::::::::: gsm international : +49 15737185122 :: :: http://icube-icps.unistra.fr/index.php/Jens_Gustedt :: --=-t81to5vDcGzvDjXG/GmE Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.12 (GNU/Linux) iEYEABECAAYFAlP8auUACgkQD9PoadrVN+K9LACghnR+6md4EkzVdF4hGY8qYlaB RI0An11Ak6rhUY1kcFCtiJ0kTIjYrREn =nzlf -----END PGP SIGNATURE----- --=-t81to5vDcGzvDjXG/GmE--