Date: Wed, 29 Sep 2010 19:31:58 +0200 From: Roman Divacky <rdivacky@freebsd.org> To: Derek Tattersall <dlt@mebtel.net> Cc: Renato Botelho <rbgarga@gmail.com>, Dimitry Andric <dim@freebsd.org>, current@freebsd.org Subject: Re: Clang now builds world and kernel, on i386 and amd64 Message-ID: <20100929173158.GA73653@freebsd.org> In-Reply-To: <20100929155659.GA82433@oriental.arm.org> References: <4C99A53E.7060707@FreeBSD.org> <AANLkTimYj1VnVQBLROE94rqPYO7pQyHWfpjiYYZ2ORrX@mail.gmail.com> <AANLkTikm0FrJbOTiRPQhcqM30N-GyOYRBk_8jR-Gq9jF@mail.gmail.com> <20100929002843.GA5001@oriental.arm.org> <4CA2E00D.3080102@FreeBSD.org> <AANLkTik4k%2Bg8NGwRUp=7bvF2MiHhbBOHmA=Ree_-xRDT@mail.gmail.com> <4CA3244D.7030907@FreeBSD.org> <20100929155659.GA82433@oriental.arm.org>
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On Wed, Sep 29, 2010 at 11:56:59AM -0400, Derek Tattersall wrote: > * Dimitry Andric <dim@freebsd.org> [100929 08:55]: > > On 2010-09-29 13:23, Renato Botelho wrote: > > > #!/usr/bin/perl > > > > > > use File::Temp; > > > > > > my ( $fh, $filename ) = File::Temp::tempfile(); > > > print "$filename\n"; > > > > For me it works perfectly, though I am using perl 5.10: > > > > $ cat foo.pl > > #!/usr/bin/perl > > > > use File::Temp; > > > > my ( $fh, $filename ) = File::Temp::tempfile(); > > print "$filename\n"; > > $ perl -v > > > > This is perl, v5.10.1 (*) built for i386-freebsd-64int > > > > Copyright 1987-2009, Larry Wall > > > > Perl may be copied only under the terms of either the Artistic License or the > > GNU General Public License, which may be found in the Perl 5 source kit. > > > > Complete documentation for Perl, including FAQ lists, should be found on > > this system using "man perl" or "perldoc perl". If you have access to the > > Internet, point your browser at http://www.perl.org/, the Perl Home Page. > > > > $ perl foo.pl > > /tmp/tv25CPnWhF > > $ perl foo.pl > > /tmp/L2UJQ5_JJs > > $ perl foo.pl > > /tmp/6ynQYvWIc1 > > $ perl foo.pl > > /tmp/Tdpf7PKBMg > > $ perl foo.pl > > /tmp/76ir2i1ici > > $ perl foo.pl > > /tmp/LhfD0eZgd8 > > > > I'll try building perl 5.12 and try it again. > > > > Btw, I assume you did *not* rebuild perl with clang, so your perl is > > still compiled with gcc? > > _______________________________________________ > > freebsd-current@freebsd.org mailing list > > http://lists.freebsd.org/mailman/listinfo/freebsd-current > > To unsubscribe, send any mail to "freebsd-current-unsubscribe@freebsd.org" > I built a test case using perl 5.12 and demonstrated that calling int(rand()) > in perl returns NAN, as does calling rand() by itself. A "C" program > that calls libc's rand() does return differing integers. The perl > documentation claims that perl's rand() calls "C"s rand() and srand() if > necessary. I think this effectively demonstrates that the problem lies > with the perl function rand() and it's interface to libc's rand() as > provided by clang. > > On a recent stable system, perl's mktemp works fine. The only real > difference is that libc on stable is built with gcc and libc on current > is built with clang. what does this show with clang libc? perl -e 'print int(rand(60)) . " \n" foreach (1 .. 10)' I guess it returns all 0, as the $CHAR[0] is 'A', can you test that?
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