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freebsd/lib/libc/sparc64/sys/__sparc_utrap_setup.c
Thomas Moestl 4895e965c3 Add userland floating point emulator code for sparc64. This is a port
of the (never committed) in-kernel version (with some optimizations and
cleanups), which in turn was ported from NetBSD.
2002-02-23 21:37:18 +00:00

60 lines
2.1 KiB
C

/*-
* Copyright (c) 2001 Jake Burkholder.
* 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 <sys/types.h>
#include <machine/utrap.h>
#include <machine/sysarch.h>
#include <stdlib.h>
#include "__sparc_utrap_private.h"
static const struct sparc_utrap_args ua[] = {
{ UT_FP_DISABLED, __sparc_utrap_fp_disabled, NULL, NULL, NULL },
{ UT_FP_EXCEPTION_IEEE_754, __sparc_utrap_gen, NULL, NULL, NULL },
{ UT_FP_EXCEPTION_OTHER, __sparc_utrap_gen, NULL, NULL, NULL },
#if 0
{ UT_ILLEGAL_INSTRUCTION, __sparc_utrap_gen, NULL, NULL, NULL },
{ UT_MEM_ADDRESS_NOT_ALIGNED, __sparc_utrap_gen, NULL, NULL, NULL },
#endif
{ UT_TRAP_INSTRUCTION_16, __sparc_utrap_gen, NULL, NULL, NULL },
};
static const struct sparc_utrap_install_args uia[] = {
sizeof (ua) / sizeof (*ua), ua
};
void
__sparc_utrap_setup(void)
{
sysarch(SPARC_UTRAP_INSTALL, &uia);
}