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Introduce native support for MacOS ARM64

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There's a new program named ape/ape-m1.c which will be used to build an
embeddable binary that can load ape and elf executables. The support is
mostly working so far, but still chasing down ABI issues.
This commit is contained in:
Justine Tunney 2023-05-18 19:05:08 -07:00
parent b852650c08
commit 1422e96b4e
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GPG key ID: BE714B4575D6E328
757 changed files with 2988 additions and 1321 deletions
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120
libc/tinymath/tanhf.c
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@ -2,88 +2,78 @@
│vi: set et ft=c ts=8 tw=8 fenc=utf-8 :vi│
╚──────────────────────────────────────────────────────────────────────────────╝
│ │
│ FreeBSD lib/msun/src/s_tanhf.c │
│ Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com. │
│ Musl Libc │
│ Copyright © 2005-2014 Rich Felker, et al. │
│ │
│ Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. │
│ Permission is hereby granted, free of charge, to any person obtaining │
│ a copy of this software and associated documentation files (the │
│ "Software"), to deal in the Software without restriction, including │
│ without limitation the rights to use, copy, modify, merge, publish, │
│ distribute, sublicense, and/or sell copies of the Software, and to │
│ permit persons to whom the Software is furnished to do so, subject to │
│ the following conditions: │
│ │
│ 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. │
│ The above copyright notice and this permission notice shall be │
│ included in all copies or substantial portions of the Software. │
│ │
│ Copyright (c) 1992-2023 The FreeBSD Project. │
│ │
│ Redistribution and use in source and binary forms, with or without │
│ modification, are permitted provided that the following conditions │
│ are met: │
│ 1. Redistributions of source code must retain the above copyright │
│ notice, this list of conditions and the following disclaimer. │
│ 2. Redistributions in binary form must reproduce the above copyright │
│ notice, this list of conditions and the following disclaimer in the │
│ documentation and/or other materials provided with the distribution. │
│ │
│ THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND │
│ ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE │
│ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE │
│ ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE │
│ FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL │
│ DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS │
│ OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) │
│ HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT │
│ LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY │
│ OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF │
│ SUCH DAMAGE. │
│ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, │
│ EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF │
│ MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. │
│ IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY │
│ CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, │
│ TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE │
│ SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. │
│ │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/math.h"
#include "libc/tinymath/freebsd.internal.h"
#include "libc/tinymath/internal.h"
asm(".ident\t\"\\n\\n\
FreeBSD libm (BSD-2 License)\\n\
Copyright (c) 2005-2011, Bruce D. Evans, Steven G. Kargl, David Schultz.\"");
asm(".ident\t\"\\n\\n\
fdlibm (fdlibm license)\\n\
Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.\"");
Musl libc (MIT License)\\n\
Copyright 2005-2014 Rich Felker, et. al.\"");
asm(".include \"libc/disclaimer.inc\"");
// clang-format off
static const volatile float tiny = 1.0e-30;
static const float one=1.0, two=2.0, huge = 1.0e30;
/**
* Returns hyperbolic tangent of 𝑥.
*
* @define `tanhf(x)=(expf(x)-expf(-x))/(expf(x)+expf(-x))`
* @define `tanhf(x)=(expf(2.f*x)-1.f)/(expf(2.f*x)-1.f+2.f)`
*/
float
tanhf(float x)
float tanhf(float x)
{
float t,z;
int32_t jx,ix;
union {float f; uint32_t i;} u = {.f = x};
uint32_t w;
int sign;
float t;
GET_FLOAT_WORD(jx,x);
ix = jx&0x7fffffff;
/* x = |x| */
sign = u.i >> 31;
u.i &= 0x7fffffff;
x = u.f;
w = u.i;
/* x is INF or NaN */
if(ix>=0x7f800000) {
if (jx>=0) return one/x+one; /* tanh(+-inf)=+-1 */
else return one/x-one; /* tanh(NaN) = NaN */
}
/* |x| < 9 */
if (ix < 0x41100000) { /* |x|<9 */
if (ix<0x39800000) { /* |x|<2**-12 */
if(huge+x>one) return x; /* tanh(tiny) = tiny with inexact */
}
if (ix>=0x3f800000) { /* |x|>=1 */
t = expm1f(two*fabsf(x));
z = one - two/(t+two);
} else {
t = expm1f(-two*fabsf(x));
z= -t/(t+two);
}
/* |x| >= 9, return +-1 */
if (w > 0x3f0c9f54) {
/* |x| > log(3)/2 ~= 0.5493 or nan */
if (w > 0x41200000) {
/* |x| > 10 */
t = 1 + 0/x;
} else {
t = expm1f(2*x);
t = 1 - 2/(t+2);
}
} else if (w > 0x3e82c578) {
/* |x| > log(5/3)/2 ~= 0.2554 */
t = expm1f(2*x);
t = t/(t+2);
} else if (w >= 0x00800000) {
/* |x| >= 0x1p-126 */
t = expm1f(-2*x);
t = -t/(t+2);
} else {
z = one - tiny; /* raise inexact flag */
/* |x| is subnormal */
FORCE_EVAL(x*x);
t = x;
}
return (jx>=0)? z: -z;
return sign ? -t : t;
}