This file was originally copied from earlier version of musl and never changed on OSv side. It only differs with these lines from the current musl original: ``` /* should be in math.h, which we can't include at the moment */ double scalbn(double x, int exp); int __isnan(double x); ```
So let us replaces it with a symlink to original musl. Signed-off-by: Waldemar Kozaczuk <[email protected]> --- libc/internal/libm.h | 177 +------------------------------------------ 1 file changed, 1 insertion(+), 176 deletions(-) mode change 100644 => 120000 libc/internal/libm.h diff --git a/libc/internal/libm.h b/libc/internal/libm.h deleted file mode 100644 index 3f0622ca..00000000 --- a/libc/internal/libm.h +++ /dev/null @@ -1,176 +0,0 @@ -/* origin: FreeBSD /usr/src/lib/msun/src/math_private.h */ -/* - * ==================================================== - * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. - * - * Developed at SunPro, a Sun Microsystems, Inc. business. - * Permission to use, copy, modify, and distribute this - * software is freely granted, provided that this notice - * is preserved. - * ==================================================== - */ - -#ifndef _LIBM_H -#define _LIBM_H - -#include <stdint.h> -#include <float.h> -#include "math.h" -#include <complex.h> - -#include "longdbl.h" - -#include "libc.h" - -union fshape { - float value; - uint32_t bits; -}; - -union dshape { - double value; - uint64_t bits; -}; - -#define FORCE_EVAL(x) do { \ - if (sizeof(x) == sizeof(float)) { \ - volatile float __x; \ - __x = (x); \ - } else if (sizeof(x) == sizeof(double)) { \ - volatile double __x; \ - __x = (x); \ - } else { \ - volatile long double __x; \ - __x = (x); \ - } \ -} while(0) - -/* Get two 32 bit ints from a double. */ -#define EXTRACT_WORDS(hi,lo,d) \ -do { \ - union dshape __u; \ - __u.value = (d); \ - (hi) = __u.bits >> 32; \ - (lo) = (uint32_t)__u.bits; \ -} while (0) - -/* Get a 64 bit int from a double. */ -#define EXTRACT_WORD64(i,d) \ -do { \ - union dshape __u; \ - __u.value = (d); \ - (i) = __u.bits; \ -} while (0) - -/* Get the more significant 32 bit int from a double. */ -#define GET_HIGH_WORD(i,d) \ -do { \ - union dshape __u; \ - __u.value = (d); \ - (i) = __u.bits >> 32; \ -} while (0) - -/* Get the less significant 32 bit int from a double. */ -#define GET_LOW_WORD(i,d) \ -do { \ - union dshape __u; \ - __u.value = (d); \ - (i) = (uint32_t)__u.bits; \ -} while (0) - -/* Set a double from two 32 bit ints. */ -#define INSERT_WORDS(d,hi,lo) \ -do { \ - union dshape __u; \ - __u.bits = ((uint64_t)(hi) << 32) | (uint32_t)(lo); \ - (d) = __u.value; \ -} while (0) - -/* Set a double from a 64 bit int. */ -#define INSERT_WORD64(d,i) \ -do { \ - union dshape __u; \ - __u.bits = (i); \ - (d) = __u.value; \ -} while (0) - -/* Set the more significant 32 bits of a double from an int. */ -#define SET_HIGH_WORD(d,hi) \ -do { \ - union dshape __u; \ - __u.value = (d); \ - __u.bits &= 0xffffffff; \ - __u.bits |= (uint64_t)(hi) << 32; \ - (d) = __u.value; \ -} while (0) - -/* Set the less significant 32 bits of a double from an int. */ -#define SET_LOW_WORD(d,lo) \ -do { \ - union dshape __u; \ - __u.value = (d); \ - __u.bits &= 0xffffffff00000000ull; \ - __u.bits |= (uint32_t)(lo); \ - (d) = __u.value; \ -} while (0) - -/* Get a 32 bit int from a float. */ -#define GET_FLOAT_WORD(i,d) \ -do { \ - union fshape __u; \ - __u.value = (d); \ - (i) = __u.bits; \ -} while (0) - -/* Set a float from a 32 bit int. */ -#define SET_FLOAT_WORD(d,i) \ -do { \ - union fshape __u; \ - __u.bits = (i); \ - (d) = __u.value; \ -} while (0) - -/* fdlibm kernel functions */ - -int __rem_pio2_large(double*,double*,int,int,int); - -int __rem_pio2(double,double*); -double __sin(double,double,int); -double __cos(double,double); -double __tan(double,double,int); -double __expo2(double); -double complex __ldexp_cexp(double complex,int); - -int __rem_pio2f(float,double*); -float __sindf(double); -float __cosdf(double); -float __tandf(double,int); -float __expo2f(float); -float complex __ldexp_cexpf(float complex,int); - -int __rem_pio2l(long double, long double *); -long double __sinl(long double, long double, int); -long double __cosl(long double, long double); -long double __tanl(long double, long double, int); - -/* polynomial evaluation */ -long double __polevll(long double, const long double *, int); -long double __p1evll(long double, const long double *, int); - -#if 0 -/* Attempt to get strict C99 semantics for assignment with non-C99 compilers. */ -#define STRICT_ASSIGN(type, lval, rval) do { \ - volatile type __v = (rval); \ - (lval) = __v; \ -} while (0) -#else -/* Should work with -fexcess-precision=standard (>=gcc-4.5) or -ffloat-store */ -#define STRICT_ASSIGN(type, lval, rval) ((lval) = (type)(rval)) -#endif - -/* should be in math.h, which we can't include at the moment */ -double scalbn(double x, int exp); -int __isnan(double x); - - -#endif diff --git a/libc/internal/libm.h b/libc/internal/libm.h new file mode 120000 index 00000000..cac108b1 --- /dev/null +++ b/libc/internal/libm.h @@ -0,0 +1 @@ +../../musl/src/internal/libm.h \ No newline at end of file -- 2.26.2 -- You received this message because you are subscribed to the Google Groups "OSv Development" group. 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