2f5829b55d
The next NDK to take these headers only supports API 21 and later, so clean up some of the trivial cruft. Test: treehugger Change-Id: Ib735a776d244cc82858f2ed629dd63a54dbaf650
126 lines
3.2 KiB
C
126 lines
3.2 KiB
C
/*-
|
|
* Copyright (c) 2004 David Schultz <das@FreeBSD.ORG>
|
|
* All rights reserved.
|
|
*
|
|
* 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.
|
|
*
|
|
* $FreeBSD: src/lib/msun/arm/fenv.c,v 1.1 2004/06/06 10:03:59 das Exp $
|
|
*/
|
|
|
|
#include <fenv.h>
|
|
|
|
#define FPSCR_RMODE_SHIFT 22
|
|
|
|
const fenv_t __fe_dfl_env = 0;
|
|
|
|
int fegetenv(fenv_t* __envp) {
|
|
fenv_t _fpscr;
|
|
__asm__ __volatile__("vmrs %0,fpscr" : "=r"(_fpscr));
|
|
*__envp = _fpscr;
|
|
return 0;
|
|
}
|
|
|
|
int fesetenv(const fenv_t* __envp) {
|
|
fenv_t _fpscr = *__envp;
|
|
__asm__ __volatile__("vmsr fpscr,%0" : : "ri"(_fpscr));
|
|
return 0;
|
|
}
|
|
|
|
int feclearexcept(int __excepts) {
|
|
fexcept_t __fpscr;
|
|
fegetenv(&__fpscr);
|
|
__fpscr &= ~__excepts;
|
|
fesetenv(&__fpscr);
|
|
return 0;
|
|
}
|
|
|
|
int fegetexceptflag(fexcept_t* __flagp, int __excepts) {
|
|
fexcept_t __fpscr;
|
|
fegetenv(&__fpscr);
|
|
*__flagp = __fpscr & __excepts;
|
|
return 0;
|
|
}
|
|
|
|
int fesetexceptflag(const fexcept_t* __flagp, int __excepts) {
|
|
fexcept_t __fpscr;
|
|
fegetenv(&__fpscr);
|
|
__fpscr &= ~__excepts;
|
|
__fpscr |= *__flagp & __excepts;
|
|
fesetenv(&__fpscr);
|
|
return 0;
|
|
}
|
|
|
|
int feraiseexcept(int __excepts) {
|
|
fexcept_t __ex = __excepts;
|
|
fesetexceptflag(&__ex, __excepts);
|
|
return 0;
|
|
}
|
|
|
|
int fetestexcept(int __excepts) {
|
|
fexcept_t __fpscr;
|
|
fegetenv(&__fpscr);
|
|
return (__fpscr & __excepts);
|
|
}
|
|
|
|
int fegetround(void) {
|
|
fenv_t _fpscr;
|
|
fegetenv(&_fpscr);
|
|
return ((_fpscr >> FPSCR_RMODE_SHIFT) & 0x3);
|
|
}
|
|
|
|
int fesetround(int __round) {
|
|
fenv_t _fpscr;
|
|
fegetenv(&_fpscr);
|
|
_fpscr &= ~(0x3 << FPSCR_RMODE_SHIFT);
|
|
_fpscr |= (__round << FPSCR_RMODE_SHIFT);
|
|
fesetenv(&_fpscr);
|
|
return 0;
|
|
}
|
|
|
|
int feholdexcept(fenv_t* __envp) {
|
|
fenv_t __env;
|
|
fegetenv(&__env);
|
|
*__envp = __env;
|
|
__env &= ~FE_ALL_EXCEPT;
|
|
fesetenv(&__env);
|
|
return 0;
|
|
}
|
|
|
|
int feupdateenv(const fenv_t* __envp) {
|
|
fexcept_t __fpscr;
|
|
fegetenv(&__fpscr);
|
|
fesetenv(__envp);
|
|
feraiseexcept(__fpscr & FE_ALL_EXCEPT);
|
|
return 0;
|
|
}
|
|
|
|
int feenableexcept(int __mask __unused) {
|
|
return -1;
|
|
}
|
|
|
|
int fedisableexcept(int __mask __unused) {
|
|
return 0;
|
|
}
|
|
|
|
int fegetexcept(void) {
|
|
return 0;
|
|
}
|