45 lines
1.4 KiB
C
45 lines
1.4 KiB
C
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/* $OpenBSD: pcb.h,v 1.5 2022/01/01 18:52:37 kettenis Exp $ */
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/*
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* Copyright (c) 2016 Dale Rahn <drahn@dalerahn.com>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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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 <machine/frame.h>
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#include <machine/pte.h>
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#include <machine/reg.h>
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struct trapframe;
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/*
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* Warning certain fields must be within 256 bytes of the beginning
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* of this structure.
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*/
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struct pcb {
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u_int pcb_flags;
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#define PCB_FPU 0x00000001 /* Process had FPU initialized */
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#define PCB_SINGLESTEP 0x00000002 /* Single step process */
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struct trapframe *pcb_tf;
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register_t pcb_sp; // stack pointer of switchframe
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caddr_t pcb_onfault; // On fault handler
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struct fpreg pcb_fpstate; // Floating Point state */
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void *pcb_tcb;
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};
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#endif /* _MACHINE_PCB_H_ */
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