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Add missing long double functions to Cygwin

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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>
This commit is contained in:
Corinna Vinschen
2016-03-28 19:35:20 +02:00
parent 087aca6163
commit 792e51b721
142 changed files with 10969 additions and 42 deletions
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26
newlib/libc/include/math.h
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@ -421,8 +421,12 @@ extern float log2f _PARAMS((float));
extern float hypotf _PARAMS((float, float));
#endif /* ! defined (_REENT_ONLY) */
/* On platforms where long double equals double. */
#ifdef _LDBL_EQ_DBL
/* Newlib doesn't fully support long double math functions so far.
On platforms where long double equals double the long double functions
simply call the double functions. On Cygwin the long double functions
are implemented independently from newlib to be able to use optimized
assembler functions despite using the Microsoft x86_64 ABI. */
#if defined (_LDBL_EQ_DBL) || defined (__CYGWIN__)
/* Reentrant ANSI C functions. */
#ifndef __math_68881
extern long double atanl _PARAMS((long double));
@ -492,7 +496,7 @@ extern long double lgammal _PARAMS((long double));
extern long double erfl _PARAMS((long double));
extern long double erfcl _PARAMS((long double));
#endif /* ! defined (_REENT_ONLY) */
#else /* !_LDBL_EQ_DBL */
#else /* !_LDBL_EQ_DBL && !__CYGWIN__ */
extern long double hypotl _PARAMS((long double, long double));
extern long double sqrtl _PARAMS((long double));
#ifdef __i386__
@ -501,13 +505,16 @@ extern _LONG_DOUBLE rintl _PARAMS((_LONG_DOUBLE));
extern long int lrintl _PARAMS((_LONG_DOUBLE));
extern long long int llrintl _PARAMS((_LONG_DOUBLE));
#endif /* __i386__ */
#endif /* !_LDBL_EQ_DBL */
#endif /* !_LDBL_EQ_DBL && !__CYGWIN__ */
#endif /* __ISO_C_VISIBLE >= 1999 */
#if __MISC_VISIBLE
extern double drem _PARAMS((double, double));
extern float dremf _PARAMS((float, float));
#ifdef __CYGWIN__
extern float dreml _PARAMS((long double, long double));
#endif /* __CYGWIN__ */
extern double gamma_r _PARAMS((double, int *));
extern double lgamma_r _PARAMS((double, int *));
extern float gammaf_r _PARAMS((float, int *));
@ -536,6 +543,9 @@ extern float jnf _PARAMS((int, float));
#if __GNU_VISIBLE
extern void sincos _PARAMS((double, double *, double *));
extern void sincosf _PARAMS((float, float *, float *));
#ifdef __CYGWIN__
extern void sincosl _PARAMS((long double, long double *, long double *));
#endif /* __CYGWIN__ */
# ifndef exp10
extern double exp10 _PARAMS((double));
# endif
@ -548,6 +558,14 @@ extern float exp10f _PARAMS((float));
# ifndef pow10f
extern float pow10f _PARAMS((float));
# endif
#ifdef __CYGWIN__
# ifndef exp10l
extern float exp10l _PARAMS((float));
# endif
# ifndef pow10l
extern float pow10l _PARAMS((float));
# endif
#endif /* __CYGWIN__ */
#endif /* __GNU_VISIBLE */
#if __MISC_VISIBLE || __XSI_VISIBLE