3a915d149c
an iBCS2 syscall to indicate that there is no FPU support at all rather than emulated support if an FPU is not present.
97 lines
3.0 KiB
C
97 lines
3.0 KiB
C
/*-
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* Copyright (c) 1994 Søren Schmidt
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* Copyright (c) 1995 Steven Wallace
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer
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* in this position and unchanged.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/param.h>
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#include <sys/lock.h>
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#include <sys/mutex.h>
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#include <sys/systm.h>
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#include <sys/sysctl.h>
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#include <i386/ibcs2/ibcs2_types.h>
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#include <i386/ibcs2/ibcs2_signal.h>
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#include <i386/ibcs2/ibcs2_util.h>
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#include <i386/ibcs2/ibcs2_proto.h>
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#define IBCS2_FP_NO 0 /* no fp support */
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#define IBCS2_FP_SW 1 /* software emulator */
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#define IBCS2_FP_287 2 /* 80287 FPU */
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#define IBCS2_FP_387 3 /* 80387 FPU */
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#define SI86_FPHW 40
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#define STIME 54
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#define SETNAME 56
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#define SI86_MEM 65
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extern int hw_float;
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int
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ibcs2_sysi86(struct thread *td, struct ibcs2_sysi86_args *args)
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{
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switch (args->cmd) {
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case SI86_FPHW: { /* Floating Point information */
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int val, error;
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if (hw_float)
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val = IBCS2_FP_387;
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else
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val = IBCS2_FP_NO;
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if ((error = copyout(&val, args->arg, sizeof(val))) != 0)
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return error;
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return 0;
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}
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case STIME: /* set the system time given pointer to long */
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/* gettimeofday; time.tv_sec = *args->arg; settimeofday */
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return EINVAL;
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case SETNAME: { /* set hostname given string w/ len <= 7 chars */
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int name[2];
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name[0] = CTL_KERN;
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name[1] = KERN_HOSTNAME;
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return (userland_sysctl(td, name, 2, 0, 0, 0,
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args->arg, 7, 0, 0));
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}
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case SI86_MEM: /* size of physical memory */
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td->td_retval[0] = ctob(physmem);
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return 0;
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default:
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#ifdef DIAGNOSTIC
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printf("IBCS2: 'sysi86' function %d(0x%x) "
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"not implemented yet\n", args->cmd, args->cmd);
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#endif
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return EINVAL;
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}
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}
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