Revert "Revert "Initial commit - work done up through 11 Feb 2020""

This reverts commit 56f77cf071.

oops

include/math.h

@@ -0,0 +1,91 @@
+#ifndef _MATH_H
+#define _MATH_H
+
+#include <sys/types.h>
+
+#if FLT_EVAL_METHOD == 1
+typedef float_t double;
+typedef double_t double;
+#elseif FLT_EVAL_METHOD == 2
+typedef float_t long double;
+typedef double_t long double;
+#else
+typedef float_t float;
+typedef double_t double;
+#endif
+
+#define M_E 2.718281828
+#define M_PI 3.14159265
+#define PI 3.14159265
+
+double acos(double);
+float acosf(float);
+long double acosl(long double);
+
+double asin(double);
+float asinf(float);
+long double asinl(long double);
+
+double atan(double);
+float atanf(float);
+long double atanl(long double);
+
+double atan2(double);
+float atan2f(float);
+long double atan2l(long double);
+
+double cos(double);
+float cosf(float);
+long double cosl(long double);
+
+double sin(double);
+float sinf(float);
+long double sinl(long double);
+
+double tan(double);
+float tanf(float);
+long double tanl(long double);
+
+double acosh(double);
+float acoshf(float);
+long double acoshl(long double);
+
+double asinh(double);
+float asinhf(float);
+long double asinhl(long double);
+
+double atanh(double);
+float atanhf(float);
+long double atanhl(long double);
+
+double cosh(double);
+float coshf(float);
+long double coshl(long double);
+
+double sinh(double);
+float sinhf(float);
+long double sinhl(long double);
+
+double tanh(double);
+float tanhf(float);
+long double tanhl(long double);
+
+double exp(double);
+float expf(float);
+long double expl(double);
+
+double exp2(double);
+float exp2f(float);
+long double exp2l(double);
+
+double expm1(double);
+float expm1f(float);
+long double expm1l(double);
+
+double frexp(double, int *);
+float frexpf(float, int *);
+long double frexpl(double, int *);
+
+
+
+#endif

include/stdio.h

@@ -0,0 +1,14 @@
+#ifndef _STDIO_H
+#define _STDIO_H
+
+#include <sys/cdefs.h>
+
+#define EOF (-1)
+
+int printf(const char * __restrict, ...);
+
+int putchar(int);
+
+int puts(const char *);
+
+#endif

include/stdlib.h

@@ -0,0 +1,9 @@
+#ifndef _STDLIB_H
+#define _STDLIB_H
+
+#include <sys/cdefs.h>
+
+__attribute__((__noreturn__))
+void abort(void);
+
+#endif

include/string.h

@@ -0,0 +1,15 @@
+#ifndef _STRING_H
+#define _STRING_H
+
+#include <sys/cdefs.h>
+
+#include <stddef.h>
+
+int memcmp(const void *, const void *, size_t);
+void * memcpy(void * __restrict, const void * __restrict, size_t);
+void * memmove(void *, const void *, size_t);
+void * memset(void *, int, size_t);
+
+size_t strlen(const char *);
+
+#endif

include/sys/cdefs.h

@@ -0,0 +1,6 @@
+#ifndef _SYS_CDEFS_H
+#define _SYS_CDEFS_H
+
+#define __fenix_libc 1
+
+#endif

include/sys/types.h

@@ -0,0 +1,4 @@
+#ifndef _SYS_TYPES_H
+#define _SYS_TYPES_H
+
+#endif /* not _HEADER */