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Annotation of kernel/mach/i386/thread_status.h, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
        !             3:  *
        !             4:  * @APPLE_LICENSE_HEADER_START@
        !             5:  * 
        !             6:  * Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
        !             7:  * Reserved.  This file contains Original Code and/or Modifications of
        !             8:  * Original Code as defined in and that are subject to the Apple Public
        !             9:  * Source License Version 1.1 (the "License").  You may not use this file
        !            10:  * except in compliance with the License.  Please obtain a copy of the
        !            11:  * License at http://www.apple.com/publicsource and read it before using
        !            12:  * this file.
        !            13:  * 
        !            14:  * The Original Code and all software distributed under the License are
        !            15:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
        !            16:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
        !            17:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
        !            18:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
        !            19:  * License for the specific language governing rights and limitations
        !            20:  * under the License.
        !            21:  * 
        !            22:  * @APPLE_LICENSE_HEADER_END@
        !            23:  */
        !            24: 
        !            25: /*
        !            26:  * Copyright (c) 1992 NeXT Computer, Inc.
        !            27:  *
        !            28:  * Intel386 Family:    External thread state.
        !            29:  *
        !            30:  * HISTORY
        !            31:  *
        !            32:  * 5 April 1992 ? at NeXT
        !            33:  *     Created.
        !            34:  */
        !            35: 
        !            36: #import <architecture/i386/frame.h>
        !            37: #import <architecture/i386/fpu.h>
        !            38: 
        !            39: /*
        !            40:  * Main thread state consists of
        !            41:  * general registers, segment registers,
        !            42:  * eip and eflags.
        !            43:  */
        !            44: 
        !            45: #define i386_THREAD_STATE      -1
        !            46: 
        !            47: typedef struct {
        !            48:     unsigned int       eax;
        !            49:     unsigned int       ebx;
        !            50:     unsigned int       ecx;
        !            51:     unsigned int       edx;
        !            52:     unsigned int       edi;
        !            53:     unsigned int       esi;
        !            54:     unsigned int       ebp;
        !            55:     unsigned int       esp;
        !            56:     unsigned int       ss;
        !            57:     unsigned int       eflags;
        !            58:     unsigned int       eip;
        !            59:     unsigned int       cs;
        !            60:     unsigned int       ds;
        !            61:     unsigned int       es;
        !            62:     unsigned int       fs;
        !            63:     unsigned int       gs;
        !            64: } i386_thread_state_t;
        !            65: 
        !            66: #define i386_THREAD_STATE_COUNT                \
        !            67:     ( sizeof (i386_thread_state_t) / sizeof (int) )
        !            68: 
        !            69: /*
        !            70:  * Default segment register values.
        !            71:  */
        !            72:     
        !            73: #define USER_CODE_SELECTOR     0x000f
        !            74: #define USER_DATA_SELECTOR     0x0017
        !            75: #define KERN_CODE_SELECTOR     0x0008
        !            76: #define KERN_DATA_SELECTOR     0x0010
        !            77: 
        !            78: /*
        !            79:  * Thread floating point state
        !            80:  * includes FPU environment as
        !            81:  * well as the register stack.
        !            82:  */
        !            83:  
        !            84: #define i386_THREAD_FPSTATE    -2
        !            85: 
        !            86: typedef struct {
        !            87:     fp_env_t           environ;
        !            88:     fp_stack_t         stack;
        !            89: } i386_thread_fpstate_t;
        !            90: 
        !            91: #define i386_THREAD_FPSTATE_COUNT      \
        !            92:     ( sizeof (i386_thread_fpstate_t) / sizeof (int) )
        !            93: 
        !            94: /*
        !            95:  * Extra state that may be
        !            96:  * useful to exception handlers.
        !            97:  */
        !            98: 
        !            99: #define i386_THREAD_EXCEPTSTATE        -3
        !           100: 
        !           101: typedef struct {
        !           102:     unsigned int       trapno;
        !           103:     err_code_t         err;
        !           104: } i386_thread_exceptstate_t;
        !           105: 
        !           106: #define i386_THREAD_EXCEPTSTATE_COUNT  \
        !           107:     ( sizeof (i386_thread_exceptstate_t) / sizeof (int) )
        !           108: 
        !           109: /*
        !           110:  * Per-thread variable used
        !           111:  * to store 'self' id for cthreads.
        !           112:  */
        !           113:  
        !           114: #define i386_THREAD_CTHREADSTATE       -4
        !           115:  
        !           116: typedef struct {
        !           117:     unsigned int       self;
        !           118: } i386_thread_cthreadstate_t;
        !           119: 
        !           120: #define i386_THREAD_CTHREADSTATE_COUNT \
        !           121:     ( sizeof (i386_thread_cthreadstate_t) / sizeof (int) )

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