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* math/divtc3.c: New file.

Browse Source 
* math/multc3.c: New file.
	* sysdeps/unix/sysv/linux/sparc/sparc32/Makefile
	[$(subdir) = math] (libm-routines): Add multc3, divtc3.

	* sysdeps/unix/sysv/linux/sparc/sparc32/fpu/Implies: New file.
	* sysdeps/sparc/sparc32/fpu/s_fabsl.c: Include math.h and
	math_ldbl_opt.h.
	(fabsl): Use long_double_symbol instead of weak_alias.
	* sysdeps/sparc/sparc32/fpu/s_fabs.c: Include math.h and
	math_ldbl_opt.h.
	[LONG_DOUBLE_COMPAT] (fabsl): Add compat_symbol.

2006-01-31  Martin Schwidefsky	<schwidefsky@de.ibm.com>
	    Jakub Jelinek  <jakub@redhat.com>

	* sysdeps/unix/sysv/linux/s390/Implies: New file.
	* sysdeps/unix/sysv/linux/s390/fpu/Implies: New file.
	* sysdeps/unix/sysv/linux/s390/nldbl-abi.h: New file.
	* sysdeps/s390/fpu/bits/mathinline.h (signbitl, sqrtl): New inlines.
	* sysdeps/s390/bits/mathdef.h: New file.
	* sysdeps/s390/fpu/e_sqrtl.c: New file.
	* sysdeps/s390/s390-32/bits/wordsize.h (__LONG_DOUBLE_MATH_OPTIONAL,
	__NO_LONG_DOUBLE_MATH): Define.
	* sysdeps/s390/s390-64/bits/wordsize.h: Likewise.
	* sysdeps/s390/Implies: Add ieee754/ldbl-128.
	* sysdeps/s390/ldbl2mpn.c: File removed.
	* sysdeps/s390/fpu/libm-test-ulps: Updated.

2006-01-31  Roland McGrath  <roland@redhat.com>

	* sysdeps/alpha/fpu/bits/mathdef.h: Moved to ...
	* sysdeps/alpha/bits/mathdef.h: ... here.
	* sysdeps/i386/fpu/bits/mathdef.h: Moved to ...
	* sysdeps/i386/bits/mathdef.h: ... here.
	* sysdeps/mips/fpu/bits/mathdef.h: Moved to ...
	* sysdeps/mips/bits/mathdef.h: ... here.
	* sysdeps/m68k/fpu/bits/mathdef.h: Moved to ...
	* sysdeps/m68k/bits/mathdef.h: ... here.
	* sysdeps/powerpc/fpu/bits/mathdef.h: Moved to ...
	* sysdeps/powerpc/bits/mathdef.h: ... here.
	* sysdeps/sparc/fpu/bits/mathdef.h: Moved to ...
	* sysdeps/sparc/bits/mathdef.h: ... here.
	* sysdeps/ia64/fpu/bits/mathdef.h: Moved to ...
	* sysdeps/ia64/bits/mathdef.h: ... here.
	* sysdeps/sh/sh4/fpu/bits/mathdef.h: Moved to ...
	* sysdeps/sh/sh4/bits/mathdef.h: ... here.
	* sysdeps/x86_64/fpu/bits/mathdef.h: Moved to ...
	* sysdeps/x86_64/bits/mathdef.h: ... here.

2006-01-31  Jakub Jelinek  <jakub@redhat.com>
This commit is contained in:
Roland McGrath 2006-02-01 03:02:06 +00:00
parent d224299090
commit fea3f995bd
27 changed files with 834 additions and 102 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

52
ChangeLog
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@ -1,3 +1,55 @@
2006-01-31 Jakub Jelinek <jakub@redhat.com>
* math/divtc3.c: New file.
* math/multc3.c: New file.
* sysdeps/unix/sysv/linux/sparc/sparc32/Makefile
[$(subdir) = math] (libm-routines): Add multc3, divtc3.
* sysdeps/unix/sysv/linux/sparc/sparc32/fpu/Implies: New file.
* sysdeps/sparc/sparc32/fpu/s_fabsl.c: Include math.h and
math_ldbl_opt.h.
(fabsl): Use long_double_symbol instead of weak_alias.
* sysdeps/sparc/sparc32/fpu/s_fabs.c: Include math.h and
math_ldbl_opt.h.
[LONG_DOUBLE_COMPAT] (fabsl): Add compat_symbol.
2006-01-31 Martin Schwidefsky <schwidefsky@de.ibm.com>
Jakub Jelinek <jakub@redhat.com>
* sysdeps/unix/sysv/linux/s390/Implies: New file.
* sysdeps/unix/sysv/linux/s390/fpu/Implies: New file.
* sysdeps/unix/sysv/linux/s390/nldbl-abi.h: New file.
* sysdeps/s390/fpu/bits/mathinline.h (signbitl, sqrtl): New inlines.
* sysdeps/s390/bits/mathdef.h: New file.
* sysdeps/s390/fpu/e_sqrtl.c: New file.
* sysdeps/s390/s390-32/bits/wordsize.h (__LONG_DOUBLE_MATH_OPTIONAL,
__NO_LONG_DOUBLE_MATH): Define.
* sysdeps/s390/s390-64/bits/wordsize.h: Likewise.
* sysdeps/s390/Implies: Add ieee754/ldbl-128.
* sysdeps/s390/ldbl2mpn.c: File removed.
* sysdeps/s390/fpu/libm-test-ulps: Updated.
2006-01-31 Roland McGrath <roland@redhat.com>
* sysdeps/alpha/fpu/bits/mathdef.h: Moved to ...
* sysdeps/alpha/bits/mathdef.h: ... here.
* sysdeps/i386/fpu/bits/mathdef.h: Moved to ...
* sysdeps/i386/bits/mathdef.h: ... here.
* sysdeps/mips/fpu/bits/mathdef.h: Moved to ...
* sysdeps/mips/bits/mathdef.h: ... here.
* sysdeps/m68k/fpu/bits/mathdef.h: Moved to ...
* sysdeps/m68k/bits/mathdef.h: ... here.
* sysdeps/powerpc/fpu/bits/mathdef.h: Moved to ...
* sysdeps/powerpc/bits/mathdef.h: ... here.
* sysdeps/sparc/fpu/bits/mathdef.h: Moved to ...
* sysdeps/sparc/bits/mathdef.h: ... here.
* sysdeps/ia64/fpu/bits/mathdef.h: Moved to ...
* sysdeps/ia64/bits/mathdef.h: ... here.
* sysdeps/sh/sh4/fpu/bits/mathdef.h: Moved to ...
* sysdeps/sh/sh4/bits/mathdef.h: ... here.
* sysdeps/x86_64/fpu/bits/mathdef.h: Moved to ...
* sysdeps/x86_64/bits/mathdef.h: ... here.
2006-01-31 Jakub Jelinek <jakub@redhat.com>
* sysdeps/unix/sysv/linux/i386/fxstatat.c [XSTAT_IS_STAT64]

75
math/divtc3.c Normal file
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@ -0,0 +1,75 @@
/* Copyright (C) 2005, 2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Richard Henderson <rth@redhat.com>, 2005.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <stdbool.h>
#include <math.h>
#include <complex.h>
attribute_hidden
long double _Complex
__divtc3 (long double a, long double b, long double c, long double d)
{
long double denom, ratio, x, y;
/* ??? We can get better behavior from logarithmic scaling instead of
the division. But that would mean starting to link libgcc against
libm. We could implement something akin to ldexp/frexp as gcc builtins
fairly easily... */
if (fabsl (c) < fabsl (d))
{
ratio = c / d;
denom = (c * ratio) + d;
x = ((a * ratio) + b) / denom;
y = ((b * ratio) - a) / denom;
}
else
{
ratio = d / c;
denom = (d * ratio) + c;
x = ((b * ratio) + a) / denom;
y = (b - (a * ratio)) / denom;
}
/* Recover infinities and zeros that computed as NaN+iNaN; the only cases
are nonzero/zero, infinite/finite, and finite/infinite. */
if (isnan (x) && isnan (y))
{
if (denom == 0.0 && (!isnan (a) || !isnan (b)))
{
x = __copysignl (INFINITY, c) * a;
y = __copysignl (INFINITY, c) * b;
}
else if ((isinf (a) || isinf (b)) && isfinite (c) && isfinite (d))
{
a = __copysignl (isinf (a) ? 1 : 0, a);
b = __copysignl (isinf (b) ? 1 : 0, b);
x = INFINITY * (a * c + b * d);
y = INFINITY * (b * c - a * d);
}
else if ((isinf (c) || isinf (d)) && isfinite (a) && isfinite (b))
{
c = __copysignl (isinf (c) ? 1 : 0, c);
d = __copysignl (isinf (d) ? 1 : 0, d);
x = 0.0 * (a * c + b * d);
y = 0.0 * (b * c - a * d);
}
}
return x + I * y;
}

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math/multc3.c Normal file
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@ -0,0 +1,80 @@
/* Copyright (C) 2005, 2006 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Richard Henderson <rth@redhat.com>, 2005.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <stdbool.h>
#include <math.h>
#include <complex.h>
attribute_hidden
long double _Complex
__multc3 (long double a, long double b, long double c, long double d)
{
long double ac, bd, ad, bc, x, y;
ac = a * c;
bd = b * d;
ad = a * d;
bc = b * c;
x = ac - bd;
y = ad + bc;
if (isnan (x) && isnan (y))
{
/* Recover infinities that computed as NaN + iNaN. */
bool recalc = 0;
if (isinf (a) || isinf (b))
{
/* z is infinite. "Box" the infinity and change NaNs in
the other factor to 0. */
a = __copysignl (isinf (a) ? 1 : 0, a);
b = __copysignl (isinf (b) ? 1 : 0, b);
if (isnan (c)) c = __copysignl (0, c);
if (isnan (d)) d = __copysignl (0, d);
recalc = 1;
}
if (isinf (c) || isinf (d))
{
/* w is infinite. "Box" the infinity and change NaNs in
the other factor to 0. */
c = __copysignl (isinf (c) ? 1 : 0, c);
d = __copysignl (isinf (d) ? 1 : 0, d);
if (isnan (a)) a = __copysignl (0, a);
if (isnan (b)) b = __copysignl (0, b);
recalc = 1;
}
if (!recalc
&& (isinf (ac) || isinf (bd) || isinf (ad) || isinf (bc)))
{
/* Recover infinities from overflow by changing NaNs to 0. */
if (isnan (a)) a = __copysignl (0, a);
if (isnan (b)) b = __copysignl (0, b);
if (isnan (c)) c = __copysignl (0, c);
if (isnan (d)) d = __copysignl (0, d);
recalc = 1;
}
if (recalc)
{
x = INFINITY * (a * c - b * d);
y = INFINITY * (a * d + b * c);
}
}
return x + I * y;
}

0
sysdeps/alpha/fpu/bits/mathdef.h → sysdeps/alpha/bits/mathdef.h
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0
sysdeps/i386/fpu/bits/mathdef.h → sysdeps/i386/bits/mathdef.h
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0
sysdeps/ia64/fpu/bits/mathdef.h → sysdeps/ia64/bits/mathdef.h
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0
sysdeps/m68k/fpu/bits/mathdef.h → sysdeps/m68k/bits/mathdef.h
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0
sysdeps/mips/fpu/bits/mathdef.h → sysdeps/mips/bits/mathdef.h
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0
sysdeps/powerpc/fpu/bits/mathdef.h → sysdeps/powerpc/bits/mathdef.h
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1
sysdeps/s390/Implies
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@ -1,2 +1,3 @@
ieee754/ldbl-128
ieee754/dbl-64
ieee754/flt-32

38
sysdeps/s390/bits/mathdef.h Normal file
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@ -0,0 +1,38 @@
/* Copyright (C) 1997, 1998, 1999, 2000, 2004, 2006
Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#if !defined _MATH_H && !defined _COMPLEX_H
# error "Never use <bits/mathdef.h> directly; include <math.h> instead"
#endif
#if defined __USE_ISOC99 && defined _MATH_H && !defined _MATH_H_MATHDEF
# define _MATH_H_MATHDEF 1
/* Normally, there is no long double type and the `float' and `double'
expressions are evaluated as `double'. */
typedef double float_t; /* `float' expressions are evaluated as
`double'. */
typedef double double_t; /* `double' expressions are evaluated as
`double'. */
/* The values returned by `ilogb' for 0 and NaN respectively. */
# define FP_ILOGB0 (-2147483647)
# define FP_ILOGBNAN 2147483647
#endif /* ISO C99 */

26
sysdeps/s390/fpu/bits/mathinline.h
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@ -47,6 +47,21 @@ __NTH (__signbit (double __x))
return __u.__i < 0;
}
# ifndef __NO_LONG_DOUBLE_MATH
__MATH_INLINE int
__NTH (__signbitl (long double __x))
{
__extension__ union { long double __l; int __i[4]; } __u = { __l: __x };
return __u.__i[0] < 0;
}
# else
__MATH_INLINE int
__NTH (__signbitl (long double __x))
{
return __signbit ((double) __x);
}
# endif
#endif /* C99 */
/* This code is used internally in the GNU libc. */
@ -70,6 +85,17 @@ __NTH (__ieee754_sqrtf (float x))
return res;
}
# if !defined __NO_LONG_DOUBLE_MATH
__MATH_INLINE long double
__NTH (sqrtl (long double __x))
{
long double res;
asm ( "sqxbr %0,%1" : "=f" (res) : "f" (__x) );
return res;
}
# endif /* !__NO_LONG_DOUBLE_MATH */
#endif /* __LIBC_INTERNAL_MATH_INLINES */
#endif /* __NO_MATH_INLINES */

30
sysdeps/s390/fpu/e_sqrtl.c Normal file
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@ -0,0 +1,30 @@
/* Square root. S/390 FPU version.
Copyright (C) 2004, 2006 Free Software Foundation, Inc.
Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include <math_private.h>
long double
__ieee754_sqrtl (long double x)
{
long double res;
asm ( "sqxbr %0,%1" : "=f" (res) : "f" (x) );
return res;
}

475
sysdeps/s390/fpu/libm-test-ulps
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File diff suppressed because it is too large Load Diff

101
sysdeps/s390/ldbl2mpn.c
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@ -1,101 +0,0 @@
/* Copyright (C) 1995, 1996, 1997 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, write to the Free
Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
02111-1307 USA. */
#include "gmp.h"
#include "gmp-impl.h"
#include "longlong.h"
#include "ieee754.h"
#include <float.h>
#include <stdlib.h>
/* Convert a `long double' in IEEE854 standard double-precision format to a
multi-precision integer representing the significand scaled up by its
number of bits (64 for long double) and an integral power of two
(MPN frexpl). */
mp_size_t
__mpn_extract_long_double (mp_ptr res_ptr, mp_size_t size,
int *expt, int *is_neg,
long double value)
{
union ieee854_long_double u;
u.d = value;
*is_neg = u.ieee.negative;
*expt = (int) u.ieee.exponent - IEEE854_LONG_DOUBLE_BIAS;
#if BITS_PER_MP_LIMB == 32
res_ptr[0] = u.ieee.mantissa1; /* Low-order 32 bits of fraction. */
res_ptr[1] = u.ieee.mantissa0; /* High-order 32 bits. */
#define N 2
#elif BITS_PER_MP_LIMB == 64
/* Hopefully the compiler will combine the two bitfield extracts
and this composition into just the original quadword extract. */
res_ptr[0] = ((unsigned long int) u.ieee.mantissa0 << 32) | u.ieee.mantissa1;
#define N 1
#else
#error "mp_limb size " BITS_PER_MP_LIMB "not accounted for"
#endif
if (u.ieee.exponent == 0)
{
/* A biased exponent of zero is a special case.
Either it is a zero or it is a denormal number. */
if (res_ptr[0] == 0 && res_ptr[N - 1] == 0) /* Assumes N<=2. */
/* It's zero. */
*expt = 0;
else
{
/* It is a denormal number, meaning it has no implicit leading
one bit, and its exponent is in fact the format minimum. */
int cnt;
/* One problem with Intel's 80-bit format is that the explicit
leading one in the normalized representation has to be zero
for denormalized number. If it is one, the number is according
to Intel's specification an invalid number. We make the
representation unique by explicitly clearing this bit. */
res_ptr[N - 1] &= ~(1L << ((LDBL_MANT_DIG - 1) % BITS_PER_MP_LIMB));
if (res_ptr[N - 1] != 0)
{
count_leading_zeros (cnt, res_ptr[N - 1]);
if (cnt != 0)
{
#if N == 2
res_ptr[N - 1] = res_ptr[N - 1] << cnt
| (res_ptr[0] >> (BITS_PER_MP_LIMB - cnt));
res_ptr[0] <<= cnt;
#else
res_ptr[N - 1] <<= cnt;
#endif
}
*expt = LDBL_MIN_EXP - 1 - cnt;
}
else
{
count_leading_zeros (cnt, res_ptr[0]);
res_ptr[N - 1] = res_ptr[0] << cnt;
res_ptr[0] = 0;
*expt = LDBL_MIN_EXP - 1 - BITS_PER_MP_LIMB - cnt;
}
}
}
return N;
}

11
sysdeps/s390/s390-32/bits/wordsize.h
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@ -5,3 +5,14 @@
#else
# define __WORDSIZE 32
#endif
#if !defined __NO_LONG_DOUBLE_MATH && !defined __LONG_DOUBLE_MATH_OPTIONAL
/* Signal that we didn't used to have a `long double'. The changes all
the `long double' function variants to be redirects to the double
functions. */
# define __LONG_DOUBLE_MATH_OPTIONAL 1
# ifndef __LONG_DOUBLE_128__
# define __NO_LONG_DOUBLE_MATH 1
# endif
#endif

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sysdeps/s390/s390-64/bits/wordsize.h
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@ -5,3 +5,14 @@
#else
# define __WORDSIZE 32
#endif
#if !defined __NO_LONG_DOUBLE_MATH && !defined __LONG_DOUBLE_MATH_OPTIONAL
/* Signal that we didn't used to have a `long double'. The changes all
the `long double' function variants to be redirects to the double
functions. */
# define __LONG_DOUBLE_MATH_OPTIONAL 1
# ifndef __LONG_DOUBLE_128__
# define __NO_LONG_DOUBLE_MATH 1
# endif
#endif

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0
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6
sysdeps/sparc/sparc32/fpu/s_fabs.c
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@ -1,5 +1,11 @@
#include <math.h>
#include <math_ldbl_opt.h>
double __fabs (double x)
{
return __builtin_fabs (x);
}
weak_alias (__fabs, fabs)
#if LONG_DOUBLE_COMPAT(libm, GLIBC_2_0)
compat_symbol (libm, __fabs, fabsl, GLIBC_2_0);
#endif

5
sysdeps/sparc/sparc32/fpu/s_fabsl.c
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@ -1,5 +1,8 @@
#include <math.h>
#include <math_ldbl_opt.h>
long double __fabsl (long double x)
{
return __builtin_fabsl (x);
}
weak_alias (__fabsl, fabsl)
long_double_symbol (libm, __fabsl, fabsl);

3
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@ -0,0 +1,3 @@
# These supply the ABI compatibility for when long double was double.
ieee754/ldbl-64-128
ieee754/ldbl-opt

2
sysdeps/unix/sysv/linux/s390/fpu/Implies Normal file
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@ -0,0 +1,2 @@
# Override ldbl-opt with s390 specific routines.
s390/fpu

8
sysdeps/unix/sysv/linux/s390/nldbl-abi.h Normal file
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@ -0,0 +1,8 @@
/* ABI version for long double switch.
This is used by the Versions and math_ldbl_opt.h files in
sysdeps/ieee754/ldbl-opt/. It gives the ABI version where
long double == double was replaced with proper long double
for libm *l functions and libc functions using long double. */
#define NLDBL_VERSION GLIBC_2.4
#define LONG_DOUBLE_COMPAT_VERSION GLIBC_2_4

10
sysdeps/unix/sysv/linux/sparc/sparc32/Makefile
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@ -9,3 +9,13 @@ CFLAGS-rtld.c += -mcpu=v8
sysdep-others += lddlibc4
install-bin += lddlibc4
endif # elf
ifeq ($(subdir),math)
# These 2 routines are normally in libgcc{.a,_s.so.1}.
# However, sparc32 -mlong-double-128 libgcc relies on
# glibc providing _Q_* routines and without these files
# glibc relies on __multc3/__divtc3 only provided
# by libgcc if configured with -mlong-double-128.
# Provide these routines here as well.
libm-routines += multc3 divtc3
endif # math

2
sysdeps/unix/sysv/linux/sparc/sparc32/fpu/Implies Normal file
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@ -0,0 +1,2 @@
# We must list this here to move it ahead of the ldbl-opt code.
sparc/sparc32/fpu

0
sysdeps/x86_64/fpu/bits/mathdef.h → sysdeps/x86_64/bits/mathdef.h
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