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Annotation of 43BSDReno/sys/hp300/pcb.h, revision 1.1.1.1

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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