Build just the compatibility versions of frexp()/ldexp()/modf(), the
real implementation is in libm.
This commit is contained in:
drochner
parent
89e2703366
commit
4502979a72
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@ -1,7 +1,7 @@
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# $NetBSD: Makefile.inc,v 1.24 2005/10/06 08:37:56 dogcow Exp $
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# $NetBSD: Makefile.inc,v 1.25 2006/06/27 18:19:57 drochner Exp $
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# objects built from assembler sources (need lint stubs)
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SRCS+= alloca.S byte_swap_2.S byte_swap_4.S fabs.S modf.S \
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SRCS+= alloca.S byte_swap_2.S byte_swap_4.S fabs.S \
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flt_rounds.S fpgetmask.S fpgetround.S fpgetsticky.S \
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fpsetmask.S fpsetround.S fpsetsticky.S
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@ -10,12 +10,11 @@ SRCS+= setjmp.S _setjmp.S sigsetjmp.S
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SRCS+= resumecontext.S swapcontext.S
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# objects built from C sources
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SRCS+= bswap64.c ldexp.c _lwp.c makecontext.c
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SRCS+= bswap64.c _lwp.c makecontext.c
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# Common ieee754 constants and functions
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SRCS+= infinityf_ieee754.c infinity_ieee754.c
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SRCS+= fpclassifyf_ieee754.c fpclassifyd_ieee754.c
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SRCS+= frexp_ieee754.c
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SRCS+= isinff_ieee754.c isinfd_ieee754.c
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SRCS+= isnanf_ieee754.c isnand_ieee754.c
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SRCS+= isfinitef_ieee754.c isfinited_ieee754.c
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@ -29,7 +28,7 @@ SRCS+= divsi3.S fixdfsi.S fixunsdfsi.S udivsi3.S
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SRCS.i386.gen=\
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Lint__setjmp.c Lint_alloca.c Lint_bswap16.c Lint_bswap32.c \
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Lint_fabs.c Lint_modf.c \
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Lint_fabs.c \
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Lint___setjmp14.c Lint___sigsetjmp14.c Lint_flt_rounds.c \
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Lint_fpgetmask.c Lint_fpgetround.c Lint_fpgetsticky.c \
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Lint_fpsetmask.c Lint_fpsetround.c Lint_fpsetsticky.c \
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@ -1,68 +0,0 @@
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/* $NetBSD: ldexp.c,v 1.7 2001/11/04 13:57:29 lukem Exp $ */
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/*-
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* Copyright (c) 1998 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Charles M. Hannum.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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#if defined(LIBC_SCCS) && !defined(lint)
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__RCSID("$NetBSD: ldexp.c,v 1.7 2001/11/04 13:57:29 lukem Exp $");
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#endif /* LIBC_SCCS and not lint */
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#include <sys/types.h>
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#include <machine/ieee.h>
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#include <math.h>
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/*
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* ldexp(value, exp): return value * (2 ** exp).
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*/
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double
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ldexp(value, expon)
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double value;
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int expon;
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{
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double temp;
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#if __GNUC__ >= 2
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__asm ("fscale"
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: "=t" (temp)
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: "0" (value), "u" ((double)expon));
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#else
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__asm ("fscale; fstp %%st(1)"
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: "=f" (temp)
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: "f" (value), "0" ((double)expon));
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#endif
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return (temp);
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}
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@ -1,74 +0,0 @@
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/* $NetBSD: modf.S,v 1.6 2003/08/07 16:42:07 agc Exp $ */
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/*-
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* Copyright (c) 1990 The Regents of the University of California.
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* Sean Eric Fagan.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* from: @(#)modf.s 5.5 (Berkeley) 3/18/91
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*/
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#include <machine/asm.h>
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#if defined(LIBC_SCCS)
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RCSID("$NetBSD: modf.S,v 1.6 2003/08/07 16:42:07 agc Exp $")
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#endif
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/*
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* modf(value, iptr): return fractional part of value, and stores the
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* integral part into iptr (a pointer to double).
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*
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* Written by Sean Eric Fagan (sef@kithrup.COM)
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* Sun Mar 11 20:27:30 PST 1990
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*/
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/* With CHOP mode on, frndint behaves as TRUNC does. Useful. */
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ENTRY(modf)
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pushl %ebp
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movl %esp,%ebp
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subl $16,%esp
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fnstcw -12(%ebp)
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movw -12(%ebp),%dx
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orw $3072,%dx
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movw %dx,-16(%ebp)
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fldcw -16(%ebp)
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fldl 8(%ebp)
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frndint
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fstpl -8(%ebp)
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fldcw -12(%ebp)
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movl 16(%ebp),%eax
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movl -8(%ebp),%edx
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movl -4(%ebp),%ecx
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movl %edx,(%eax)
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movl %ecx,4(%eax)
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fldl 8(%ebp)
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fsubl -8(%ebp)
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jmp L1
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L1:
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leave
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ret
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@ -1,4 +1,7 @@
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# $NetBSD: Makefile.inc,v 1.2 2005/10/05 20:16:43 christos Exp $
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# $NetBSD: Makefile.inc,v 1.3 2006/06/27 18:19:57 drochner Exp $
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# objects built from assembler sources (need lint stubs)
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SRCS+= compat_setjmp.S compat_sigsetjmp.S
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# objects built from C sources in compat/gen
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SRCS+= compat_frexp_ieee754.c compat_ldexp_ieee754.c compat_modf_ieee754.c
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