460378bf13
the prototypes of the appropriate functions (getcontext, savectx, setjmp, sigsetjmp and vfork). MFC after: 2 weeks
76 lines
2.3 KiB
C
76 lines
2.3 KiB
C
/*-
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* Copyright (c) 2003,2004 Marcel Moolenaar
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* Copyright (c) 2000 Doug Rabson
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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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* 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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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _MACHINE_PCB_H_
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#define _MACHINE_PCB_H_
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#ifndef _MACHINE_REGSET_H_
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#include <machine/_regset.h>
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#endif
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/*
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* PCB: process control block
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*/
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struct pmap;
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struct pcb {
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struct _special pcb_special;
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struct _callee_saved pcb_preserved;
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struct _callee_saved_fp pcb_preserved_fp;
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struct _high_fp pcb_high_fp;
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struct pcpu *pcb_fpcpu;
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struct pmap *pcb_current_pmap;
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uint64_t pcb_onfault; /* for copy faults */
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/* IA32 specific registers. */
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uint64_t pcb_ia32_cflg;
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uint64_t pcb_ia32_eflag;
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uint64_t pcb_ia32_fcr;
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uint64_t pcb_ia32_fdr;
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uint64_t pcb_ia32_fir;
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uint64_t pcb_ia32_fsr;
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};
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#ifdef _KERNEL
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#define savectx(p) swapctx(p, NULL)
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struct trapframe;
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void makectx(struct trapframe *, struct pcb *);
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void restorectx(struct pcb *) __dead2;
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int swapctx(struct pcb *old, struct pcb *new) __returns_twice;
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void ia32_restorectx(struct pcb *);
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void ia32_savectx(struct pcb *) __returns_twice;
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#endif
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#endif /* _MACHINE_PCB_H_ */
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