sparc64/73782: libc is missing the _Qp_cmp function
Dan Nelson
dnelson at allantgroup.com
Wed Nov 10 09:00:41 PST 2004
>Number: 73782
>Category: sparc64
>Synopsis: libc is missing the _Qp_cmp function
>Confidential: no
>Severity: serious
>Priority: medium
>Responsible: freebsd-sparc64
>State: open
>Quarter:
>Keywords:
>Date-Required:
>Class: sw-bug
>Submitter-Id: current-users
>Arrival-Date: Wed Nov 10 17:00:40 GMT 2004
>Closed-Date:
>Last-Modified:
>Originator: Dan Nelson
>Release: FreeBSD 5.3-RELEASE sparc64
>Organization:
The Allant Group
>Environment:
>Description:
gcc will generate calls to _Qp_cmp when doing some long-double math
operations. I don't know exactly what C code triggers it, but pike 7.6
configured with --with-long-double-precisionfails to link because it
can't find _Qp_cmp.
>How-To-Repeat:
I'm reporting this secondhand, but downloading
http://pike.ida.liu.se/pub/pike/latest-stable/Pike-v7.6.24.tar.gz and
running "make CONFIGUREARGS=--with-long-double-precision" should be
enough to trigger it.
>Fix:
Add _Qp_cmp support to /usr/src/lib/libc/sparc64/fpu/fpu_qp.c . NetBSD
has working code (although a different way of going about it) at
http://cvsweb.netbsd.org/bsdweb.cgi/src/lib/libc/arch/sparc64/softfloat/qp.c
, and the official description of the function is at
http://www.sparc.com/standards/SCD.2.4.1.ps (although I can't seem to
get to it right now)
>Release-Note:
>Audit-Trail:
>Unformatted:
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