Add build system scaffolding and libc headers

1 files changed, 252 insertions, 0 deletions

diff --git a/include/math.h b/include/math.h
new file mode 100644
index 00000000..a8ea9f97
--- /dev/null
+++ b/include/math.h
@@ -0,0 +1,252 @@
+#ifndef __MATH_H
+#define __MATH_H
+
+extern int signgam;
+
+#if FLT_EVAL_METHOD == 1
+typedef double double_t;
+typedef double float_t;
+#elif FLT_EVAL_METHOD == 2
+typedef long double double_t;
+typedef long double float_t;
+#else
+typedef double double_t;
+typedef float float_t;
+#endif
+
+#define FP_NAN	     0x02
+#define FP_INFINITE  0x01
+#define FP_ZERO	     0x10
+#define FP_SUBNORMAL 0x08
+#define FP_NORMAL    0x04
+
+#define FP_FAST_FMAF 1
+#define FP_FAST_FMA  1
+#define FP_FAST_FMAL 1
+
+#define FP_ILOGB0   (-0x7fffffff)
+#define FP_ILOGBNAN 0x7fffffff
+
+#define MATH_ERRNO	 1
+#define MATH_ERREXCEPT	 2
+#define math_errhandling MATH_ERREXCEPT
+
+#define M_E	   2.7182818284590452354
+#define M_EGAMMA   0.5772156649015328606
+#define M_LOG2E	   1.4426950408889634074
+#define M_LOG10E   0.43429448190325182765
+#define M_LN2	   0.69314718055994530942
+#define M_LN10	   2.30258509299404568402
+#define M_PHI	   1.61803398874989484820
+#define M_PI	   3.14159265358979323846
+#define M_PI_2	   1.57079632679489661923
+#define M_PI_4	   0.78539816339744830962
+#define M_1_PI	   0.31830988618379067154
+#define M_1_SQRTPI 1.77245385090551602730
+#define M_2_PI	   0.63661977236758134308
+#define M_2_SQRTPI 1.12837916709551257390
+#define M_SQRT2	   1.41421356237309504880
+#define M_SQRT3	   1.73205080756887729353
+#define M_SQRT1_2  0.70710678118654752440
+#define M_SQRT1_3  0.57735026918962576451
+
+#define HUGE_VAL  __builtin_huge_val()
+#define HUGE_VALF __builtin_huge_valf()
+#define HUGE_VALL __builtin_huge_vall()
+#define INFINITY  __builtin_inff()
+#define NAN	  __builtin_nanf("")
+
+#define fpclassify(x) __builtin_fpclassify((x))
+#define isfinite(x)   __builtin_isfinite((x))
+#define isinf(x)      __builtin_isinf((x))
+#define isnan(x)      __builtin_isnan((x))
+#define isnormal(x)   __builtin_isnormal((x))
+
+#define isgreater(x, y)	     __builtin_isgreater((x), (y))
+#define isgreaterequal(x, y) __builtin_isgreaterequal((x), (y))
+#define isless(x, y)	     __builtin_isless((x), (y))
+#define islessequal(x, y)    __builtin_islessequal((x), (y))
+#define islessgreater(x, y)  __builtin_islessgreater((x), (y))
+#define isunordered(x, y)    __builtin_isunordered((x), (y))
+
+#define signbit(x) __builtin_signbit((x))
+
+double acos(double);
+float acosf(float);
+double acosh(double);
+float acoshf(float);
+long double acoshl(long double);
+long double acosl(long double);
+double asin(double);
+float asinf(float);
+double asinh(double);
+float asinhf(float);
+long double asinhl(long double);
+long double asinl(long double);
+double atan(double);
+double atan2(double, double);
+float atan2f(float, float);
+long double atan2l(long double, long double);
+float atanf(float);
+double atanh(double);
+float atanhf(float);
+long double atanhl(long double);
+long double atanl(long double);
+double cbrt(double);
+float cbrtf(float);
+long double cbrtl(long double);
+double ceil(double);
+float ceilf(float);
+long double ceill(long double);
+double copysign(double, double);
+float copysignf(float, float);
+long double copysignl(long double, long double);
+double cos(double);
+float cosf(float);
+double cosh(double);
+float coshf(float);
+long double coshl(long double);
+long double cosl(long double);
+double erf(double);
+double erfc(double);
+float erfcf(float);
+long double erfcl(long double);
+float erff(float);
+long double erfl(long double);
+double exp(double);
+double exp2(double);
+float exp2f(float);
+long double exp2l(long double);
+float expf(float);
+long double expl(long double);
+double expm1(double);
+float expm1f(float);
+long double expm1l(long double);
+double fabs(double);
+float fabsf(float);
+long double fabsl(long double);
+double fdim(double, double);
+float fdimf(float, float);
+long double fdiml(long double, long double);
+double floor(double);
+float floorf(float);
+long double floorl(long double);
+double fma(double, double, double);
+float fmaf(float, float, float);
+long double fmal(long double, long double, long double);
+double fmax(double, double);
+float fmaxf(float, float);
+long double fmaxl(long double, long double);
+double fmin(double, double);
+float fminf(float, float);
+long double fminl(long double, long double);
+double fmod(double, double);
+float fmodf(float, float);
+long double fmodl(long double, long double);
+double frexp(double, int *);
+float frexpf(float, int *);
+long double frexpl(long double, int *);
+double hypot(double, double);
+float hypotf(float, float);
+long double hypotl(long double, long double);
+int ilogb(double);
+int ilogbf(float);
+int ilogbl(long double);
+double j0(double);
+double j1(double);
+double jn(int, double);
+double ldexp(double, int);
+float ldexpf(float, int);
+long double ldexpl(long double, int);
+double lgamma(double);
+float lgammaf(float);
+long double lgammal(long double);
+long long llrint(double);
+long long llrintf(float);
+long long llrintl(long double);
+long long llround(double);
+long long llroundf(float);
+long long llroundl(long double);
+double log(double);
+double log10(double);
+float log10f(float);
+long double log10l(long double);
+double log1p(double);
+float log1pf(float);
+long double log1pl(long double);
+double log2(double);
+float log2f(float);
+long double log2l(long double);
+double logb(double);
+float logbf(float);
+long double logbl(long double);
+float logf(float);
+long double logl(long double);
+long lrint(double);
+long lrintf(float);
+long lrintl(long double);
+long lround(double);
+long lroundf(float);
+long lroundl(long double);
+double modf(double, double *);
+float modff(float, float *);
+long double modfl(long double, long double *);
+double nan(const char *);
+float nanf(const char *);
+long double nanl(const char *);
+double nearbyint(double);
+float nearbyintf(float);
+long double nearbyintl(long double);
+double nextafter(double, double);
+float nextafterf(float, float);
+long double nextafterl(long double, long double);
+double nexttoward(double, long double);
+float nexttowardf(float, long double);
+long double nexttowardl(long double, long double);
+double pow(double, double);
+float powf(float, float);
+long double powl(long double, long double);
+double remainder(double, double);
+float remainderf(float, float);
+long double remainderl(long double, long double);
+double remquo(double, double, int *);
+float remquof(float, float, int *);
+long double remquol(long double, long double, int *);
+double rint(double);
+float rintf(float);
+long double rintl(long double);
+double round(double);
+float roundf(float);
+long double roundl(long double);
+double scalbln(double, long);
+float scalblnf(float, long);
+long double scalblnl(long double, long);
+double scalbn(double, int);
+float scalbnf(float, int);
+long double scalbnl(long double, int);
+double sin(double);
+float sinf(float);
+double sinh(double);
+float sinhf(float);
+long double sinhl(long double);
+long double sinl(long double);
+double sqrt(double);
+float sqrtf(float);
+long double sqrtl(long double);
+double tan(double);
+float tanf(float);
+double tanh(double);
+float tanhf(float);
+long double tanhl(long double);
+long double tanl(long double);
+double tgamma(double);
+float tgammaf(float);
+long double tgammal(long double);
+double trunc(double);
+float truncf(float);
+long double truncl(long double);
+double y0(double);
+double y1(double);
+double yn(int, double);
+
+#endif