792e51b721
This patch adds the long double functions missing in newlib to Cygwin.
Apart from some self-written additions (exp10l, finite{f,l}, isinf{f,l},
isnan{f,l}, pow10l) the files are taken from the Mingw-w64 math lib.
Minor changes were required, e.g. substitue _WIN64 with __x86_64__ and
fixing __FLT_RPT_DOMAIN/__FLT_RPT_ERANGE for Cygwin.
Cygwin:
* math: New subdir with math functions.
* Makefile.in (VPATH): Add math subdir.
(MATH_OFILES): List of object files collected from building files in
math subdir.
(DLL_OFILES): Add $(MATH_OFILES).
${CURDIR}/libm.a: Add $(MATH_OFILES) to build.
* common.din: Add new functions from math subdir.
* i686.din: Align to new math subdir. Remove functions now commonly
available.
* x86_64.din: Ditto.
* math.h: math.h wrapper to define mingw structs used in some files in
math subdir.
* include/cygwin/version.h: Bump API minor version.
newlib:
* libc/include/complex.h: Add prototypes for complex long double
functions. Only define for Cygwin.
* libc/include/math.h: Additionally enable prototypes of long double
functions for Cygwin. Add Cygwin-only prototypes for dreml, sincosl,
exp10l and pow10l. Explain why we don't add them to newlib.
* libc/include/tgmath.h: Enable long double handling on Cygwin.
Signed-off-by: Corinna Vinschen <corinna@vinschen.de>
154 lines
5.4 KiB
C
154 lines
5.4 KiB
C
/*
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This Software is provided under the Zope Public License (ZPL) Version 2.1.
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Copyright (c) 2009, 2010 by the mingw-w64 project
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See the AUTHORS file for the list of contributors to the mingw-w64 project.
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This license has been certified as open source. It has also been designated
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as GPL compatible by the Free Software Foundation (FSF).
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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 are met:
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1. Redistributions in source code must retain the accompanying 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 accompanying
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copyright notice, this list of conditions, and the following disclaimer
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in the documentation and/or other materials provided with the
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distribution.
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3. Names of the copyright holders must not be used to endorse or promote
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products derived from this software without prior written permission
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from the copyright holders.
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4. The right to distribute this software or to use it for any purpose does
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not give you the right to use Servicemarks (sm) or Trademarks (tm) of
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the copyright holders. Use of them is covered by separate agreement
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with the copyright holders.
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5. If any files are modified, you must cause the modified files to carry
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prominent notices stating that you changed the files and the date of
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any change.
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Disclaimer
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS ``AS IS'' AND ANY EXPRESSED
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OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY DIRECT, INDIRECT,
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INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifdef __CYGWIN__
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/* Disable __IMPORT when defining __fdlib_version. */
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#define _COMPILING_NEWLIB
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#define _GNU_SOURCE
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#endif
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#include <math.h>
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#include <complex.h>
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/* Define some PI constants for long double, as they are not defined in math.h */
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#ifndef M_PI_4l
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#define M_PI_4l 0.7853981633974483096156608458198757L
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#define M_PI_2l 1.5707963267948966192313216916397514L
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#define M_PIl 3.1415926535897932384626433832795029L
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#endif
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/* NAN builtins for gcc, as they are not part of math.h */
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#ifndef NANF
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#define NANF __builtin_nanf ("")
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#endif
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#ifndef NANL
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#define NANL __builtin_nanl ("")
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#endif
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/* Some more helpers. */
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#define M_PI_3_4 (M_PI - M_PI_4)
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#define M_PI_3_4l (M_PIl - M_PI_4l)
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#if defined(_NEW_COMPLEX_FLOAT)
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# define __FLT_TYPE float
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# define __FLT_ABI(N) N##f
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# define __FLT_CST(N) N##F
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# define __FLT_EPSILON __FLT_EPSILON__
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# define __FLT_NAN NANF
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# define __FLT_HUGE_VAL HUGE_VALF
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# define __FLT_PI M_PI
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# define __FLT_PI_2 M_PI_2
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# define __FLT_PI_4 M_PI_4
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# define __FLT_PI_3_4 M_PI_3_4
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# define __FLT_MAXLOG 88.72283905206835F
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# define __FLT_MINLOG -103.278929903431851103F
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# define __FLT_LOGE2 0.693147180559945309F
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# define __FLT_LOG10E 0.434294481903251828F
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# define __FLT_REPORT(NAME) NAME "f"
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#elif defined(_NEW_COMPLEX_DOUBLE)
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# define __FLT_TYPE double
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# define __FLT_ABI(N) N
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# define __FLT_EPSILON __DBL_EPSILON__
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# define __FLT_CST(N) N
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# define __FLT_NAN NAN
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# define __FLT_HUGE_VAL HUGE_VAL
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# define __FLT_PI M_PI
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# define __FLT_PI_2 M_PI_2
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# define __FLT_PI_4 M_PI_4
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# define __FLT_PI_3_4 M_PI_3_4
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# define __FLT_MAXLOG 7.09782712893383996843E2
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# define __FLT_MINLOG -7.45133219101941108420E2
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# define __FLT_LOGE2 6.93147180559945309417E-1
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# define __FLT_LOG10E 4.34294481903251827651E-1
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# define __FLT_REPORT(NAME) NAME
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#elif defined(_NEW_COMPLEX_LDOUBLE)
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# define __FLT_TYPE long double
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# define __FLT_ABI(N) N##l
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# define __FLT_CST(N) N##L
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# define __FLT_EPSILON __LDBL_EPSILON__
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# define __FLT_NAN NANL
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# define __FLT_HUGE_VAL HUGE_VALL
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# define __FLT_PI M_PIl
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# define __FLT_PI_2 M_PI_2l
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# define __FLT_PI_4 M_PI_4l
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# define __FLT_PI_3_4 M_PI_3_4l
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# define __FLT_MAXLOG 1.1356523406294143949492E4L
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# define __FLT_MINLOG -1.1355137111933024058873E4L
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# define __FLT_LOGE2 6.9314718055994530941723E-1L
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# define __FLT_LOG10E 4.3429448190325182765113E-1L
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# define __FLT_REPORT(NAME) NAME "l"
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#else
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# error "Unknown complex number type"
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#endif
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#define __FLT_RPT_DOMAIN(NAME, ARG1, ARG2, RSLT) \
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errno = EDOM, \
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__mingw_raise_matherr (_DOMAIN, __FLT_REPORT(NAME), (double) (ARG1), \
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(double) (ARG2), (double) (RSLT))
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#define __FLT_RPT_ERANGE(NAME, ARG1, ARG2, RSLT, OVL) \
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errno = ERANGE, \
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__mingw_raise_matherr (((OVL) ? _OVERFLOW : _UNDERFLOW), \
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__FLT_REPORT(NAME), (double) (ARG1), \
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(double) (ARG2), (double) (RSLT))
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#ifdef __CYGWIN__
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inline void __attribute__ ((always_inline))
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__mingw_raise_matherr (int typ, const char *name, double a1, double a2,
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double rslt)
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{
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if (_LIB_VERSION != _POSIX_)
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{
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struct exception ex;
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ex.type = typ;
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ex.name = (char*)name;
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ex.arg1 = a1;
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ex.arg2 = a2;
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ex.retval = rslt;
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matherr(&ex);
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}
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}
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#define _DOMAIN DOMAIN
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#define _OVERFLOW OVERFLOW
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#define _UNDERFLOW UNDERFLOW
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#endif
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