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Date:      Tue, 9 Nov 2010 07:48:13 -0800
From:      Steve Kargl <sgk@troutmask.apl.washington.edu>
To:        Alexander Best <arundel@freebsd.org>
Cc:        Dag-Erling Sm?rgrav <des@des.no>, arch@freebsd.org
Subject:   Re: Moving flex and yacc to contrib/, all hell breaks loose?
Message-ID:  <20101109154813.GA64438@troutmask.apl.washington.edu>
In-Reply-To: <20101109132338.GA70099@freebsd.org>
References:  <20101107141804.GN85693@acme.spoerlein.net> <86eiaw0wsf.fsf@ds4.des.no> <20101109132338.GA70099@freebsd.org>

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On Tue, Nov 09, 2010 at 01:23:38PM +0000, Alexander Best wrote:
> On Mon Nov  8 10, Dag-Erling Sm?rgrav wrote:
> > Ulrich Sp?rlein <uqs@spoerlein.net> writes:
> > > To my knowledge, the only "vendor" software in our tree, not yet living
> > > under cddl/, contrib/, crypto/ or gnu/ are
> > >
> > > lib/libc/softfloat
> > > lib/libz
> > > lib/msun
> > > usr.bin/lex
> > > usr.bin/unifdef
> > > usr.bin/yacc
> > 
> > I have no opinion on the others, but AFAIK, msun is a mix of unmodified
> > third-party code, locally modified third-party code and locally
> > developed code (which is how my name ended up in the Android credits),
> > and I'm not sure there still is a third-party maintainer for our version
> > of msun.
> 
> i talked to david hough who is working for oracle. he said that oracle has no
> business interest in libmsun at all! the mailinglist fdlibm-comments@sun.com
> will be shut down and every issues etc. with libmsun shall now be discussed
> here:
> 
> http://mailman.oakapple.net/mailman/listinfo/numeric-interest
> 
> this message contains a brief statement by oracle [1].
> 
> so it seems lib/msun can be moved to the list of third party software with
> ceased upstream development.
> 
> cheers.
> alex

Interesting mailing!  I particularly like 

http://mailman.oakapple.net/pipermail/numeric-interest/2010-September/002057.html

which loops back to 

http://www.freebsd.org/cgi/query-pr.cgi?pr=144306

which is still open some 9 months later.  Here's an
updated diff that also fixes jnf().  Watch for 
cut-n-paste corruption of whitespace.

-- 
steve

troutmask:root[217] svn diff src/e_jn*c
Index: src/e_jn.c
===================================================================
--- src/e_jn.c  (revision 213691)
+++ src/e_jn.c  (working copy)
@@ -200,7 +200,12 @@
                        }
                    }
                }
-               b = (t*__ieee754_j0(x)/b);
+               z = __ieee754_j0(x);
+               w = __ieee754_j1(x);
+               if (fabs(z) >= fabs(w))
+                       b = (t*z/b);
+               else
+                       b = (t*w/a);            
            }
        }
        if(sgn==1) return -b; else return b;
Index: src/e_jnf.c
===================================================================
--- src/e_jnf.c (revision 213691)
+++ src/e_jnf.c (working copy)
@@ -152,7 +152,12 @@
                        }
                    }
                }
-               b = (t*__ieee754_j0f(x)/b);
+               z = __ieee754_j0f(x);
+               w = __ieee754_j1f(x);
+               if (fabs(z) >= fabs(w))
+                       b = (t*z/b);
+               else
+                       b = (t*w/a);            
            }
        }
        if(sgn==1) return -b; else return b;

-- 
Steve



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