better nameing and direction

Makefile

@@ -191,7 +191,7 @@ nuttxpatches:
 	$(Q) -if [ ! -f $(NUTTX_PATCHED) ]; then \
 		 	for patch in $(NUTTX_PATCHES); \
 				do \
-					$(PATCH) -p0 -N -R < $$patch >/dev/null; \
+					$(PATCH) -p0 -N  < $$patch >/dev/null; \
 				done \
 		  fi
 	$(Q) $(TOUCH) $(NUTTX_PATCHED)
@@ -201,7 +201,7 @@ cleannuttxpatches:
 	$(Q) -if [  -f $(NUTTX_PATCHED) ]; then \
 		 	for patch in $(NUTTX_PATCHES); \
 				do \
-					$(PATCH) -p0 -N < $$patch >/dev/null; \
+					$(PATCH) -p0 -N -R < $$patch >/dev/null; \
 				done \
 		  fi
 	$(Q) $(REMOVE) $(NUTTX_PATCHED)

nuttx-patches/math.h.patch

@@ -0,0 +1,583 @@
+diff -ruN NuttX/nuttx/arch/arm/include/math.h NuttX/nuttx/arch/arm/include/math.h
+--- NuttX/nuttx/arch/arm/include/math.h	1969-12-31 14:00:00.000000000 -1000
++++ NuttX/nuttx/arch/arm/include/math.h	2014-12-25 17:33:53.404950574 -1000
+@@ -0,0 +1,579 @@
++#ifndef  _MATH_H_
++
++#define  _MATH_H_
++
++#include <machine/ieeefp.h>
++#include "_ansi.h"
++
++_BEGIN_STD_C
++
++/* Natural log of 2 */
++#define _M_LN2        0.693147180559945309417
++
++#if defined(__GNUC__) && \
++  ( (__GNUC__ >= 4) || \
++    ( (__GNUC__ >= 3) && defined(__GNUC_MINOR__) && (__GNUC_MINOR__ >= 3) ) )
++
++ /* gcc >= 3.3 implicitly defines builtins for HUGE_VALx values.  */
++
++# ifndef HUGE_VAL
++#  define HUGE_VAL (__builtin_huge_val())
++# endif
++
++# ifndef HUGE_VALF
++#  define HUGE_VALF (__builtin_huge_valf())
++# endif
++
++# ifndef HUGE_VALL
++#  define HUGE_VALL (__builtin_huge_vall())
++# endif
++
++# ifndef INFINITY
++#  define INFINITY (__builtin_inff())
++# endif
++
++# ifndef NAN
++#  define NAN (__builtin_nanf(""))
++# endif
++
++#else /* !gcc >= 3.3  */
++
++ /*      No builtins.  Use fixed defines instead.  (All 3 HUGE plus the INFINITY
++ *        * and NAN macros are required to be constant expressions.  Using a variable--
++ *          * even a static const--does not meet this requirement, as it cannot be
++ *            * evaluated at translation time.)
++ *              *      The infinities are done using numbers that are far in excess of
++ *                * something that would be expected to be encountered in a floating-point
++ *                  * implementation.  (A more certain way uses values from float.h, but that is
++ *                    * avoided because system includes are not supposed to include each other.)
++ *                      *      This method might produce warnings from some compilers.  (It does in
++ *                        * newer GCCs, but not for ones that would hit this #else.)  If this happens,
++ *                          * please report details to the Newlib mailing list.  */
++
++ #ifndef HUGE_VAL
++  #define HUGE_VAL (1.0e999999999)
++ #endif
++
++ #ifndef HUGE_VALF
++  #define HUGE_VALF (1.0e999999999F)
++ #endif
++
++ #if !defined(HUGE_VALL)  &&  defined(_HAVE_LONG_DOUBLE)
++  #define HUGE_VALL (1.0e999999999L)
++ #endif
++
++ #if !defined(INFINITY)
++  #define INFINITY (HUGE_VALF)
++ #endif
++
++ #if !defined(NAN)
++  #if defined(__GNUC__)  &&  defined(__cplusplus)
++    /* Exception:  older g++ versions warn about the divide by 0 used in the
++ *      * normal case (even though older gccs do not).  This trick suppresses the
++ *           * warning, but causes errors for plain gcc, so is only used in the one
++ *                * special case.  */
++    static const union { __ULong __i[1]; float __d; } __Nanf = {0x7FC00000};
++    #define NAN (__Nanf.__d)
++  #else
++    #define NAN (0.0F/0.0F)
++  #endif
++ #endif
++
++#endif /* !gcc >= 3.3  */
++
++/* Reentrant ANSI C functions.  */
++
++#ifndef __math_68881
++extern double atan _PARAMS((double));
++extern double cos _PARAMS((double));
++extern double sin _PARAMS((double));
++extern double tan _PARAMS((double));
++extern double tanh _PARAMS((double));
++extern double frexp _PARAMS((double, int *));
++extern double modf _PARAMS((double, double *));
++extern double ceil _PARAMS((double));
++extern double fabs _PARAMS((double));
++extern double floor _PARAMS((double));
++#endif /* ! defined (__math_68881) */
++
++/* Non reentrant ANSI C functions.  */
++
++#ifndef _REENT_ONLY
++#ifndef __math_68881
++extern double acos _PARAMS((double));
++extern double asin _PARAMS((double));
++extern double atan2 _PARAMS((double, double));
++extern double cosh _PARAMS((double));
++extern double sinh _PARAMS((double));
++extern double exp _PARAMS((double));
++extern double ldexp _PARAMS((double, int));
++extern double log _PARAMS((double));
++extern double log10 _PARAMS((double));
++extern double pow _PARAMS((double, double));
++extern double sqrt _PARAMS((double));
++extern double fmod _PARAMS((double, double));
++#endif /* ! defined (__math_68881) */
++#endif /* ! defined (_REENT_ONLY) */
++
++#if !defined(__STRICT_ANSI__) || defined(__cplusplus) || __STDC_VERSION__ >= 199901L
++
++/* ISO C99 types and macros. */
++
++#ifndef FLT_EVAL_METHOD
++#define FLT_EVAL_METHOD 0
++typedef float float_t;
++typedef double double_t;
++#endif /* FLT_EVAL_METHOD */
++
++#define FP_NAN         0
++#define FP_INFINITE    1
++#define FP_ZERO        2
++#define FP_SUBNORMAL   3
++#define FP_NORMAL      4
++
++#ifndef FP_ILOGB0
++# define FP_ILOGB0 (-INT_MAX)
++#endif
++#ifndef FP_ILOGBNAN
++# define FP_ILOGBNAN INT_MAX
++#endif
++
++#ifndef MATH_ERRNO
++# define MATH_ERRNO 1
++#endif
++#ifndef MATH_ERREXCEPT
++# define MATH_ERREXCEPT 2
++#endif
++#ifndef math_errhandling
++# define math_errhandling MATH_ERRNO
++#endif
++
++extern int __isinff (float x);
++extern int __isinfd (double x);
++extern int __isnanf (float x);
++extern int __isnand (double x);
++extern int __fpclassifyf (float x);
++extern int __fpclassifyd (double x);
++extern int __signbitf (float x);
++extern int __signbitd (double x);
++
++#define fpclassify(__x) \
++	((sizeof(__x) == sizeof(float))  ? __fpclassifyf(__x) : \
++	__fpclassifyd(__x))
++
++#ifndef isfinite
++  #define isfinite(__y) \
++          (__extension__ ({int __cy = fpclassify(__y); \
++                           __cy != FP_INFINITE && __cy != FP_NAN;}))
++#endif
++
++/* Note: isinf and isnan were once functions in newlib that took double
++ *  *       arguments.  C99 specifies that these names are reserved for macros
++ *   *       supporting multiple floating point types.  Thus, they are
++ *    *       now defined as macros.  Implementations of the old functions
++ *     *       taking double arguments still exist for compatibility purposes
++ *      *       (prototypes for them are in <ieeefp.h>).  */
++#ifndef isinf
++  #define isinf(y) (fpclassify(y) == FP_INFINITE)
++#endif
++
++#ifndef isnan
++  #define isnan(y) (fpclassify(y) == FP_NAN)
++#endif
++
++#define isnormal(y) (fpclassify(y) == FP_NORMAL)
++#define signbit(__x) \
++	((sizeof(__x) == sizeof(float))  ?  __signbitf(__x) : \
++		__signbitd(__x))
++
++#define isgreater(x,y) \
++          (__extension__ ({__typeof__(x) __x = (x); __typeof__(y) __y = (y); \
++                           !isunordered(__x,__y) && (__x > __y);}))
++#define isgreaterequal(x,y) \
++          (__extension__ ({__typeof__(x) __x = (x); __typeof__(y) __y = (y); \
++                           !isunordered(__x,__y) && (__x >= __y);}))
++#define isless(x,y) \
++          (__extension__ ({__typeof__(x) __x = (x); __typeof__(y) __y = (y); \
++                           !isunordered(__x,__y) && (__x < __y);}))
++#define islessequal(x,y) \
++          (__extension__ ({__typeof__(x) __x = (x); __typeof__(y) __y = (y); \
++                           !isunordered(__x,__y) && (__x <= __y);}))
++#define islessgreater(x,y) \
++          (__extension__ ({__typeof__(x) __x = (x); __typeof__(y) __y = (y); \
++                           !isunordered(__x,__y) && (__x < __y || __x > __y);}))
++
++#define isunordered(a,b) \
++          (__extension__ ({__typeof__(a) __a = (a); __typeof__(b) __b = (b); \
++                           fpclassify(__a) == FP_NAN || fpclassify(__b) == FP_NAN;}))
++
++/* Non ANSI double precision functions.  */
++
++extern double infinity _PARAMS((void));
++extern double nan _PARAMS((const char *));
++extern int finite _PARAMS((double));
++extern double copysign _PARAMS((double, double));
++extern double logb _PARAMS((double));
++extern int ilogb _PARAMS((double));
++
++extern double asinh _PARAMS((double));
++extern double cbrt _PARAMS((double));
++extern double nextafter _PARAMS((double, double));
++extern double rint _PARAMS((double));
++extern double scalbn _PARAMS((double, int));
++
++extern double exp2 _PARAMS((double));
++extern double scalbln _PARAMS((double, long int));
++extern double tgamma _PARAMS((double));
++extern double nearbyint _PARAMS((double));
++extern long int lrint _PARAMS((double));
++extern _LONG_LONG_TYPE int llrint _PARAMS((double));
++extern double round _PARAMS((double));
++extern long int lround _PARAMS((double));
++extern long long int llround _PARAMS((double));
++extern double trunc _PARAMS((double));
++extern double remquo _PARAMS((double, double, int *));
++extern double fdim _PARAMS((double, double));
++extern double fmax _PARAMS((double, double));
++extern double fmin _PARAMS((double, double));
++extern double fma _PARAMS((double, double, double));
++
++#ifndef __math_68881
++extern double log1p _PARAMS((double));
++extern double expm1 _PARAMS((double));
++#endif /* ! defined (__math_68881) */
++
++#ifndef _REENT_ONLY
++extern double acosh _PARAMS((double));
++extern double atanh _PARAMS((double));
++extern double remainder _PARAMS((double, double));
++extern double gamma _PARAMS((double));
++extern double lgamma _PARAMS((double));
++extern double erf _PARAMS((double));
++extern double erfc _PARAMS((double));
++extern double log2 _PARAMS((double));
++
++#ifndef __math_68881
++extern double hypot _PARAMS((double, double));
++#endif
++
++#endif /* ! defined (_REENT_ONLY) */
++
++/* Single precision versions of ANSI functions.  */
++
++extern float atanf _PARAMS((float));
++extern float cosf _PARAMS((float));
++extern float sinf _PARAMS((float));
++extern float tanf _PARAMS((float));
++extern float tanhf _PARAMS((float));
++extern float frexpf _PARAMS((float, int *));
++extern float modff _PARAMS((float, float *));
++extern float ceilf _PARAMS((float));
++extern float fabsf _PARAMS((float));
++extern float floorf _PARAMS((float));
++
++#ifndef _REENT_ONLY
++extern float acosf _PARAMS((float));
++extern float asinf _PARAMS((float));
++extern float atan2f _PARAMS((float, float));
++extern float coshf _PARAMS((float));
++extern float sinhf _PARAMS((float));
++extern float expf _PARAMS((float));
++extern float ldexpf _PARAMS((float, int));
++extern float logf _PARAMS((float));
++extern float log10f _PARAMS((float));
++extern float powf _PARAMS((float, float));
++extern float sqrtf _PARAMS((float));
++extern float fmodf _PARAMS((float, float));
++#endif /* ! defined (_REENT_ONLY) */
++
++/* Other single precision functions.  */
++
++extern float exp2f _PARAMS((float));
++extern float scalblnf _PARAMS((float, long int));
++extern float tgammaf _PARAMS((float));
++extern float nearbyintf _PARAMS((float));
++extern long int lrintf _PARAMS((float));
++extern _LONG_LONG_TYPE llrintf _PARAMS((float));
++extern float roundf _PARAMS((float));
++extern long int lroundf _PARAMS((float));
++extern long long int llroundf _PARAMS((float));
++extern float truncf _PARAMS((float));
++extern float remquof _PARAMS((float, float, int *));
++extern float fdimf _PARAMS((float, float));
++extern float fmaxf _PARAMS((float, float));
++extern float fminf _PARAMS((float, float));
++extern float fmaf _PARAMS((float, float, float));
++
++extern float infinityf _PARAMS((void));
++extern float nanf _PARAMS((const char *));
++extern int finitef _PARAMS((float));
++extern float copysignf _PARAMS((float, float));
++extern float logbf _PARAMS((float));
++extern int ilogbf _PARAMS((float));
++
++extern float asinhf _PARAMS((float));
++extern float cbrtf _PARAMS((float));
++extern float nextafterf _PARAMS((float, float));
++extern float rintf _PARAMS((float));
++extern float scalbnf _PARAMS((float, int));
++extern float log1pf _PARAMS((float));
++extern float expm1f _PARAMS((float));
++
++#ifndef _REENT_ONLY
++extern float acoshf _PARAMS((float));
++extern float atanhf _PARAMS((float));
++extern float remainderf _PARAMS((float, float));
++extern float gammaf _PARAMS((float));
++extern float lgammaf _PARAMS((float));
++extern float erff _PARAMS((float));
++extern float erfcf _PARAMS((float));
++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
++/* Reentrant ANSI C functions.  */
++#ifndef __math_68881
++extern long double atanl _PARAMS((long double));
++extern long double cosl _PARAMS((long double));
++extern long double sinl _PARAMS((long double));
++extern long double tanl _PARAMS((long double));
++extern long double tanhl _PARAMS((long double));
++extern long double frexpl _PARAMS((long double value, int *));
++extern long double modfl _PARAMS((long double, long double *));
++extern long double ceill _PARAMS((long double));
++extern long double fabsl _PARAMS((long double));
++extern long double floorl _PARAMS((long double));
++extern long double log1pl _PARAMS((long double));
++extern long double expm1l _PARAMS((long double));
++#endif /* ! defined (__math_68881) */
++/* Non reentrant ANSI C functions.  */
++#ifndef _REENT_ONLY
++#ifndef __math_68881
++extern long double acosl _PARAMS((long double));
++extern long double asinl _PARAMS((long double));
++extern long double atan2l _PARAMS((long double, long double));
++extern long double coshl _PARAMS((long double));
++extern long double sinhl _PARAMS((long double));
++extern long double expl _PARAMS((long double));
++extern long double ldexpl _PARAMS((long double, int));
++extern long double logl _PARAMS((long double));
++extern long double log2l _PARAMS((long double));
++extern long double log10l _PARAMS((long double));
++extern long double powl _PARAMS((long double, long double));
++extern long double sqrtl _PARAMS((long double));
++extern long double fmodl _PARAMS((long double, long double));
++extern long double hypotl _PARAMS((long double, long double));
++#endif /* ! defined (__math_68881) */
++#endif /* ! defined (_REENT_ONLY) */
++extern long double copysignl _PARAMS((long double, long double));
++extern long double nanl _PARAMS((const char *));
++extern int ilogbl _PARAMS((long double));
++extern long double asinhl _PARAMS((long double));
++extern long double cbrtl _PARAMS((long double));
++extern long double nextafterl _PARAMS((long double, long double));
++extern long double rintl _PARAMS((long double));
++extern long double scalbnl _PARAMS((long double, int));
++extern long double exp2l _PARAMS((long double));
++extern long double scalblnl _PARAMS((long double, long));
++extern long double tgammal _PARAMS((long double));
++extern long double nearbyintl _PARAMS((long double));
++extern long int lrintl _PARAMS((long double));
++extern long long int llrintl _PARAMS((long double));
++extern long double roundl _PARAMS((long double));
++extern long lroundl _PARAMS((long double));
++extern _LONG_LONG_TYPE int llroundl _PARAMS((long double));
++extern long double truncl _PARAMS((long double));
++extern long double remquol _PARAMS((long double, long double, int *));
++extern long double fdiml _PARAMS((long double, long double));
++extern long double fmaxl _PARAMS((long double, long double));
++extern long double fminl _PARAMS((long double, long double));
++extern long double fmal _PARAMS((long double, long double, long double));
++#ifndef _REENT_ONLY
++extern long double acoshl _PARAMS((long double));
++extern long double atanhl _PARAMS((long double));
++extern long double remainderl _PARAMS((long double, long double));
++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 */
++#ifdef __i386__
++/* Other long double precision functions.  */
++extern _LONG_DOUBLE rintl _PARAMS((_LONG_DOUBLE));
++extern long int lrintl _PARAMS((_LONG_DOUBLE));
++extern _LONG_LONG_TYPE llrintl _PARAMS((_LONG_DOUBLE));
++#endif /* __i386__ */
++#endif /* !_LDBL_EQ_DBL */
++
++#endif /* !defined (__STRICT_ANSI__) || defined(__cplusplus) || __STDC_VERSION__ >= 199901L */
++
++#if !defined (__STRICT_ANSI__) || defined(__cplusplus)
++
++extern double drem _PARAMS((double, double));
++extern void sincos _PARAMS((double, double *, double *));
++extern double gamma_r _PARAMS((double, int *));
++extern double lgamma_r _PARAMS((double, int *));
++
++extern double y0 _PARAMS((double));
++extern double y1 _PARAMS((double));
++extern double yn _PARAMS((int, double));
++extern double j0 _PARAMS((double));
++extern double j1 _PARAMS((double));
++extern double jn _PARAMS((int, double));
++
++extern float dremf _PARAMS((float, float));
++extern void sincosf _PARAMS((float, float *, float *));
++extern float gammaf_r _PARAMS((float, int *));
++extern float lgammaf_r _PARAMS((float, int *));
++
++extern float y0f _PARAMS((float));
++extern float y1f _PARAMS((float));
++extern float ynf _PARAMS((int, float));
++extern float j0f _PARAMS((float));
++extern float j1f _PARAMS((float));
++extern float jnf _PARAMS((int, float));
++
++/* GNU extensions */
++# ifndef exp10
++extern double exp10 _PARAMS((double));
++# endif
++# ifndef pow10
++extern double pow10 _PARAMS((double));
++# endif
++# ifndef exp10f
++extern float exp10f _PARAMS((float));
++# endif
++# ifndef pow10f
++extern float pow10f _PARAMS((float));
++# endif
++
++#endif /* !defined (__STRICT_ANSI__) || defined(__cplusplus) */
++
++#ifndef __STRICT_ANSI__
++
++/* The gamma functions use a global variable, signgam.  */
++#ifndef _REENT_ONLY
++#define signgam (*__signgam())
++extern int *__signgam _PARAMS((void));
++#endif /* ! defined (_REENT_ONLY) */
++
++#define __signgam_r(ptr) _REENT_SIGNGAM(ptr)
++
++/* The exception structure passed to the matherr routine.  */
++/* We have a problem when using C++ since `exception' is a reserved
++ *    name in C++.  */
++#ifdef __cplusplus
++struct __exception
++#else
++struct exception
++#endif
++{
++  int type;
++  char *name;
++  double arg1;
++  double arg2;
++  double retval;
++  int err;
++};
++
++#ifdef __cplusplus
++extern int matherr _PARAMS((struct __exception *e));
++#else
++extern int matherr _PARAMS((struct exception *e));
++#endif
++
++/* Values for the type field of struct exception.  */
++
++#define DOMAIN 1
++#define SING 2
++#define OVERFLOW 3
++#define UNDERFLOW 4
++#define TLOSS 5
++#define PLOSS 6
++
++/* Useful constants.  */
++
++#define MAXFLOAT	3.40282347e+38F
++
++#define M_E		2.7182818284590452354
++#define M_LOG2E		1.4426950408889634074
++#define M_LOG10E	0.43429448190325182765
++#define M_LN2		_M_LN2
++#define M_LN10		2.30258509299404568402
++#define M_PI		3.14159265358979323846
++#define M_TWOPI         (M_PI * 2.0)
++#define M_PI_2		1.57079632679489661923
++#define M_PI_4		0.78539816339744830962
++#define M_3PI_4		2.3561944901923448370E0
++#define M_SQRTPI        1.77245385090551602792981
++#define M_1_PI		0.31830988618379067154
++#define M_2_PI		0.63661977236758134308
++#define M_2_SQRTPI	1.12837916709551257390
++#define M_DEG_TO_RAD 	0.01745329251994
++#define M_RAD_TO_DEG 	57.2957795130823
++#define M_SQRT2		1.41421356237309504880
++#define M_SQRT1_2	0.70710678118654752440
++#define M_LN2LO         1.9082149292705877000E-10
++#define M_LN2HI         6.9314718036912381649E-1
++#define M_SQRT3	1.73205080756887719000
++#define M_IVLN10        0.43429448190325182765 /* 1 / log(10) */
++#define M_LOG2_E        _M_LN2
++#define M_INVLN2        1.4426950408889633870E0  /* 1 / log(2) */
++
++
++#define M_E_F			2.7182818284590452354f
++#define M_LOG2E_F		1.4426950408889634074f
++#define M_LOG10E_F		0.43429448190325182765f
++#define M_LN2_F			_M_LN2_F
++#define M_LN10_F		2.30258509299404568402f
++#define M_PI_F			3.14159265358979323846f
++#define M_TWOPI_F       (M_PI_F * 2.0f)
++#define M_PI_2_F		1.57079632679489661923f
++#define M_PI_4_F		0.78539816339744830962f
++#define M_3PI_4_F		2.3561944901923448370E0f
++#define M_SQRTPI_F      1.77245385090551602792981f
++#define M_1_PI_F		0.31830988618379067154f
++#define M_2_PI_F		0.63661977236758134308f
++#define M_2_SQRTPI_F	1.12837916709551257390f
++#define M_DEG_TO_RAD_F 	0.01745329251994f
++#define M_RAD_TO_DEG_F 	57.2957795130823f
++#define M_SQRT2_F		1.41421356237309504880f
++#define M_SQRT1_2_F		0.70710678118654752440f
++#define M_LN2LO_F       1.9082149292705877000E-10f
++#define M_LN2HI_F       6.9314718036912381649E-1f
++#define M_SQRT3_F		1.73205080756887719000f
++#define M_IVLN10_F      0.43429448190325182765f /* 1 / log(10) */
++#define M_LOG2_E_F      _M_LN2_F
++#define M_INVLN2_F      1.4426950408889633870E0f  /* 1 / log(2) */
++
++/* Global control over fdlibm error handling.  */
++
++enum __fdlibm_version
++{
++  __fdlibm_ieee = -1,
++  __fdlibm_svid,
++  __fdlibm_xopen,
++  __fdlibm_posix
++};
++
++#define _LIB_VERSION_TYPE enum __fdlibm_version
++#define _LIB_VERSION __fdlib_version
++
++extern __IMPORT _LIB_VERSION_TYPE _LIB_VERSION;
++
++#define _IEEE_  __fdlibm_ieee
++#define _SVID_  __fdlibm_svid
++#define _XOPEN_ __fdlibm_xopen
++#define _POSIX_ __fdlibm_posix
++
++#endif /* ! defined (__STRICT_ANSI__) */
++
++_END_STD_C
++
++#ifdef __FAST_MATH__
++#include <machine/fastmath.h>
++#endif
++
++#endif /* _MATH_H_ */