projects / unix-history / blame
| Commit | Line | Data |
|---|---|---|
| 4bd1c0bf WN |
1 | /*- |
| 2 | * Copyright (c) 1990 The Regents of the University of California. | |
| 3 | * All rights reserved. | |
| 4 | * | |
| 5 | * This code is derived from software contributed to Berkeley by | |
| 6 | * William Jolitz. | |
| 7 | * | |
| 8 | * %sccs.include.noredist.c% | |
| 9 | * | |
| 10 | * @(#)pcb.h 5.1 (Berkeley) %G% | |
| 11 | */ | |
| 12 | ||
| 2850d516 BJ |
13 | /* |
| 14 | * Intel 386 process control block | |
| 15 | */ | |
| 16 | #include "tss.h" | |
| 17 | #include "fpu.h" | |
| 18 | ||
| 19 | struct pcb { | |
| 20 | struct i386tss pcbtss; | |
| 21 | #define pcb_ksp pcbtss.tss_esp0 | |
| 22 | #define pcb_ptd pcbtss.tss_cr3 | |
| 23 | #define pcb_pc pcbtss.tss_eip | |
| 24 | #define pcb_psl pcbtss.tss_eflags | |
| 25 | #define pcb_usp pcbtss.tss_esp | |
| 26 | #define pcb_fp pcbtss.tss_ebp | |
| 27 | /* | |
| 28 | * Software pcb (extension) | |
| 29 | */ | |
| 4bd1c0bf WN |
30 | int pcb_fpsav; |
| 31 | #define FP_NEEDSAVE 0x1 /* need save on next context switch */ | |
| 32 | #define FP_NEEDRESTORE 0x2 /* need restore on next DNA fault */ | |
| 2850d516 BJ |
33 | struct save87 pcb_savefpu; |
| 34 | struct pte *pcb_p0br; | |
| 35 | struct pte *pcb_p1br; | |
| 36 | int pcb_p0lr; | |
| 37 | int pcb_p1lr; | |
| 38 | int pcb_szpt; /* number of pages of user page table */ | |
| 39 | int pcb_cmap2; | |
| 40 | int *pcb_sswap; | |
| 41 | long pcb_sigc[5]; /* sigcode actually 19 bytes */ | |
| 42 | }; |