d6aa8a03f2
D8376 extended softfloat/hardfloat support, but used a macro that never actually gets set except in libc and msun's Makefile.inc. So libc and libm got built correctly, but any program including fenv.h itself assumed it was on a hardfloat systen and emitted inline fpu instructions for fedisableexcept() and friends. Using __mips_soft_float makes everything work in all cases, since it's a compiler-internal macro that is always set correctly for the target PR: 217845 Submitted by: Dan Nelson <dnelson_1901@yahoo.com> MFC after: 1 week
43 lines
819 B
C
43 lines
819 B
C
/* $NetBSD: flt_rounds.c,v 1.5 2005/12/24 23:10:08 perry Exp $ */
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/*
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* Written by J.T. Conklin, Apr 11, 1995
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* Public domain.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#if defined(LIBC_SCCS) && !defined(lint)
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__RCSID("$NetBSD: flt_rounds.c,v 1.5 2005/12/24 23:10:08 perry Exp $");
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#endif /* LIBC_SCCS and not lint */
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#include <fenv.h>
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#include <float.h>
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#ifdef __mips_soft_float
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#include "softfloat-for-gcc.h"
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#include "milieu.h"
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#include "softfloat.h"
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#endif
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static const int map[] = {
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1, /* round to nearest */
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0, /* round to zero */
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2, /* round to positive infinity */
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3 /* round to negative infinity */
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};
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int
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__flt_rounds()
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{
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int mode;
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#ifdef __mips_soft_float
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mode = __softfloat_float_rounding_mode;
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#else
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__asm __volatile("cfc1 %0,$31" : "=r" (mode));
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#endif
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return map[mode & 0x03];
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}
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