diff options
author | jimharris <jimharris@FreeBSD.org> | 2012-01-26 15:23:45 +0000 |
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committer | jimharris <jimharris@FreeBSD.org> | 2012-01-26 15:23:45 +0000 |
commit | bcd0e15cf642d6e5bf78ee585ad282b0e3061864 (patch) | |
tree | 4b7b6096856cdeb36fcba0adf3f4d121a52cce21 /lib/libc/arm/gen | |
parent | 0cf3f853641c2ededc243c9f2139ac6a0b681fe4 (diff) | |
parent | a479ceccdf3646c7bc3ff60796c765650b3ffc03 (diff) | |
download | FreeBSD-src-bcd0e15cf642d6e5bf78ee585ad282b0e3061864.zip FreeBSD-src-bcd0e15cf642d6e5bf78ee585ad282b0e3061864.tar.gz |
Rebase user/jimharris/isci branch from head.
Diffstat (limited to 'lib/libc/arm/gen')
-rw-r--r-- | lib/libc/arm/gen/Makefile.inc | 4 | ||||
-rw-r--r-- | lib/libc/arm/gen/flt_rounds.c | 65 | ||||
-rw-r--r-- | lib/libc/arm/gen/getcontextx.c | 69 |
3 files changed, 136 insertions, 2 deletions
diff --git a/lib/libc/arm/gen/Makefile.inc b/lib/libc/arm/gen/Makefile.inc index fb9d885..b47f57d 100644 --- a/lib/libc/arm/gen/Makefile.inc +++ b/lib/libc/arm/gen/Makefile.inc @@ -2,5 +2,5 @@ # $FreeBSD$ SRCS+= _ctx_start.S _setjmp.S _set_tp.c alloca.S fabs.c \ - infinity.c ldexp.c makecontext.c \ - setjmp.S signalcontext.c sigsetjmp.S divsi3.S + getcontextx.c infinity.c ldexp.c makecontext.c \ + setjmp.S signalcontext.c sigsetjmp.S divsi3.S flt_rounds.c diff --git a/lib/libc/arm/gen/flt_rounds.c b/lib/libc/arm/gen/flt_rounds.c new file mode 100644 index 0000000..81ab08b --- /dev/null +++ b/lib/libc/arm/gen/flt_rounds.c @@ -0,0 +1,65 @@ +/*- + * Copyright (c) 2012 Ian Lepore <freebsd@damnhippie.dyndns.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. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <fenv.h> +#include <float.h> + +#include "softfloat-for-gcc.h" +#include "milieu.h" +#include "softfloat.h" + +int +__flt_rounds(void) +{ + +#ifndef ARM_HARD_FLOAT + /* + * Translate our rounding modes to the unnamed + * manifest constants required by C99 et. al. + */ + switch (__softfloat_float_rounding_mode) { + case FE_TOWARDZERO: + return (0); + case FE_TONEAREST: + return (1); + case FE_UPWARD: + return (2); + case FE_DOWNWARD: + return (3); + } + return (-1); +#else /* ARM_HARD_FLOAT */ + /* + * Apparently, the rounding mode is specified as part of the + * instruction format on ARM, so the dynamic rounding mode is + * indeterminate. Some FPUs may differ. + */ + return (-1); +#endif /* ARM_HARD_FLOAT */ +} diff --git a/lib/libc/arm/gen/getcontextx.c b/lib/libc/arm/gen/getcontextx.c new file mode 100644 index 0000000..b701c18 --- /dev/null +++ b/lib/libc/arm/gen/getcontextx.c @@ -0,0 +1,69 @@ +/* + * Copyright (c) 2011 Konstantin Belousov <kib@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 ``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 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. + */ + +#include <sys/cdefs.h> +__FBSDID("$FreeBSD$"); + +#include <sys/types.h> +#include <sys/ucontext.h> +#include <errno.h> +#include <stdlib.h> + +size_t +__getcontextx_size(void) +{ + + return (sizeof(ucontext_t)); +} + +int +__fillcontextx(char *ctx) +{ + ucontext_t *ucp; + + ucp = (ucontext_t *)ctx; + return (getcontext(ucp)); +} + +__weak_reference(__getcontextx, getcontextx); + +ucontext_t * +__getcontextx(void) +{ + char *ctx; + int error; + + ctx = malloc(__getcontextx_size()); + if (ctx == NULL) + return (NULL); + if (__fillcontextx(ctx) == -1) { + error = errno; + free(ctx); + errno = error; + return (NULL); + } + return ((ucontext_t *)ctx); +} |