mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-18 10:35:55 +00:00
271b264e4c
convenient and makes life difficult for my next commit. We still need an i386tss to point to for the tss slot in the gdt, so we use a common tss shared between all processes. Note that this is going to break debugging until this series of commits is finished. core dumps will change again too. :-( we really need a more modern core dump format that doesn't depend on the pcb/upages. This change makes VM86 mode harder, but the following commits will remove a lot of constraints for the VM86 system, including the possibility of extending the pcb for an IO port map etc. Obtained from: bde
82 lines
2.9 KiB
C
82 lines
2.9 KiB
C
/*-
|
|
* Copyright (c) 1990 The Regents of the University of California.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* William Jolitz.
|
|
*
|
|
* 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.
|
|
* 3. All advertising materials mentioning features or use of this software
|
|
* must display the following acknowledgement:
|
|
* This product includes software developed by the University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University nor the names of its contributors
|
|
* may be used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE REGENTS 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 REGENTS 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.
|
|
*
|
|
* from: @(#)pcb.h 5.10 (Berkeley) 5/12/91
|
|
* $Id: pcb.h,v 1.18 1997/02/22 09:34:56 peter Exp $
|
|
*/
|
|
|
|
#ifndef _I386_PCB_H_
|
|
#define _I386_PCB_H_
|
|
|
|
/*
|
|
* Intel 386 process control block
|
|
*/
|
|
#include <machine/tss.h>
|
|
#include <machine/npx.h>
|
|
|
|
struct pcb {
|
|
int pcb_cr3;
|
|
int pcb_edi;
|
|
int pcb_esi;
|
|
int pcb_ebp;
|
|
int pcb_esp;
|
|
int pcb_ebx;
|
|
int pcb_eip;
|
|
caddr_t pcb_ldt; /* per process (user) LDT */
|
|
int pcb_ldt_len; /* number of LDT entries */
|
|
struct save87 pcb_savefpu; /* floating point state for 287/387 */
|
|
u_char pcb_flags;
|
|
#define FP_SOFTFP 0x01 /* process using software fltng pnt emulator */
|
|
caddr_t pcb_onfault; /* copyin/out fault recovery */
|
|
#if 0 /* some day we may switch between procs that have their own i386tss */
|
|
struct i386tss pcb_tss;
|
|
u_char pcb_iomap[NPORT/sizeof(u_char)]; /* i/o port bitmap */
|
|
#endif
|
|
};
|
|
|
|
/*
|
|
* The pcb is augmented with machine-dependent additional data for
|
|
* core dumps. For the i386: ???
|
|
*/
|
|
struct md_coredump {
|
|
};
|
|
|
|
#ifdef KERNEL
|
|
extern struct pcb *curpcb; /* our current running pcb */
|
|
void savectx __P((struct pcb*));
|
|
#endif
|
|
|
|
#endif /* _I386_PCB_H_ */
|