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Alex Rønne Petersen
66d97267c7
This excludes all headers in /usr/include/dev because that directory is bonkers huge (18M). We can add these on an as-needed basis.
78 lines
2.9 KiB
C
Vendored
78 lines
2.9 KiB
C
Vendored
/* $OpenBSD: pcb.h,v 1.25 2022/02/21 14:26:19 jsg Exp $ */
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/* $NetBSD: pcb.h,v 1.21 1996/01/08 13:51:42 mycroft Exp $ */
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/*-
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* Copyright (c) 1995 Charles M. Hannum. All rights reserved.
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* Copyright (c) 1990 The Regents of the University of California.
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* All rights reserved.
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*
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* This code is derived from software contributed to Berkeley by
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* William Jolitz.
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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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* 3. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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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* @(#)pcb.h 5.10 (Berkeley) 5/12/91
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*/
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/*
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* Intel 386 process control block
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*/
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#ifndef _MACHINE_PCB_H_
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#define _MACHINE_PCB_H_
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#include <sys/signal.h>
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#include <machine/segments.h>
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#include <machine/npx.h>
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#include <machine/sysarch.h>
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/*
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* Please note that pcb_savefpu must be aligned to 16 bytes.
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*/
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struct pcb {
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union savefpu pcb_savefpu; /* floating point state for FPU */
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int pcb_cr3;
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int pcb_esp;
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int pcb_ebp;
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int pcb_kstack; /* kernel stack address */
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int pcb_cr0; /* saved image of CR0 */
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caddr_t pcb_onfault; /* copyin/out fault recovery */
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struct segment_descriptor pcb_threadsegs[2];
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/* per-thread descriptors */
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int vm86_eflags; /* virtual eflags for vm86 mode */
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int vm86_flagmask; /* flag mask for vm86 mode */
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void *vm86_userp; /* XXX performance hack */
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struct pmap *pcb_pmap; /* back pointer to our pmap */
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struct cpu_info *pcb_fpcpu; /* cpu holding our fpu state */
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int pcb_flags;
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#define PCB_SAVECTX 0x00000001
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};
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/* the indexes of the %fs/%gs segments in pcb_threadsegs */
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#define TSEG_FS 0
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#define TSEG_GS 1
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#endif /* _MACHINE_PCB_H_ */ |