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Annotation of 43BSDReno/sys/hp300/pcb.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1988 University of Utah.
        !             3:  * Copyright (c) 1982, 1986, 1990 The Regents of the University of California.
        !             4:  * All rights reserved.
        !             5:  *
        !             6:  * This code is derived from software contributed to Berkeley by
        !             7:  * the Systems Programming Group of the University of Utah Computer
        !             8:  * Science Department.
        !             9:  *
        !            10:  * Redistribution is only permitted until one year after the first shipment
        !            11:  * of 4.4BSD by the Regents.  Otherwise, redistribution and use in source and
        !            12:  * binary forms are permitted provided that: (1) source distributions retain
        !            13:  * this entire copyright notice and comment, and (2) distributions including
        !            14:  * binaries display the following acknowledgement:  This product includes
        !            15:  * software developed by the University of California, Berkeley and its
        !            16:  * contributors'' in the documentation or other materials provided with the
        !            17:  * distribution and in all advertising materials mentioning features or use
        !            18:  * of this software.  Neither the name of the University nor the names of
        !            19:  * its contributors may be used to endorse or promote products derived from
        !            20:  * this software without specific prior written permission.
        !            21:  * THIS SOFTWARE IS PROVIDED AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
        !            22:  * WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
        !            23:  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
        !            24:  *
        !            25:  * from: Utah $Hdr: pcb.h 1.13 89/04/23$
        !            26:  *
        !            27:  *     @(#)pcb.h       7.1 (Berkeley) 5/8/90
        !            28:  */
        !            29: 
        !            30: #ifdef KERNEL
        !            31: #include "frame.h"
        !            32: #else
        !            33: #include <hp300/frame.h>
        !            34: #endif
        !            35: 
        !            36: /*
        !            37:  * HP300 process control block
        !            38:  */
        !            39: struct pcb
        !            40: {
        !            41:        short   pcb_flags;      /* misc. process flags (+0) */
        !            42:        short   pcb_ps;         /* processor status word (+2) */
        !            43:        int     pcb_ustp;       /* user segment table pointer (+4) */
        !            44:        int     pcb_usp;        /* user stack pointer (+8) */
        !            45:        int     pcb_regs[12];   /* D0-D7, A0-A7 (+C) */
        !            46:        struct pte *pcb_p0br;   /* P0 base register (+3C) */
        !            47:        int     pcb_p0lr;       /* P0 length register (+40) */
        !            48:        struct pte *pcb_p1br;   /* P1 base register (+44) */
        !            49:        int     pcb_p1lr;       /* P1 length register (+48) */
        !            50:        int     pcb_szpt;       /* number of pages of user page table (+4C) */
        !            51:        int     pcb_cmap2;      /* temporary copy PTE (+50) */
        !            52:        int     *pcb_sswap;     /* saved context for swap return (+54) */
        !            53:        short   pcb_sigc[12];   /* signal trampoline code (+58) */
        !            54:        caddr_t pcb_onfault;    /* for copyin/out faults (+70) */
        !            55:        struct fpframe pcb_fpregs; /* 68881/2 context save area (+74) */
        !            56:        int     pcb_exec[16];   /* exec structure for core dumps (+1B8) */
        !            57:        int     pcb_res[2];     /* reserved for future expansion (+1F8) */
        !            58: };
        !            59: 
        !            60: /* flags */
        !            61: 
        !            62: #define        PCB_AST         0x0001  /* async trap pending */
        !            63: #define PCB_HPUXMMAP   0x0010  /* VA space is multiple mapped */
        !            64: #define PCB_HPUXTRACE  0x0020  /* being traced by an HPUX process */
        !            65: #define PCB_HPUXBIN    0x0040  /* loaded from an HPUX format binary */
        !            66:                                /* note: does NOT imply SHPUX */
        !            67: 
        !            68: #define aston() \
        !            69:        { \
        !            70:                u.u_pcb.pcb_flags |= PCB_AST; \
        !            71:        }
        !            72: 
        !            73: #define astoff() \
        !            74:        { \
        !            75:                u.u_pcb.pcb_flags &= ~PCB_AST; \
        !            76:        }
        !            77: 
        !            78: #define astpend() \
        !            79:        (u.u_pcb.pcb_flags & PCB_AST)

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