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Annotation of kernel/kern/syscall_sw.c, 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:  * Mach Operating System
        !            27:  * Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University
        !            28:  * All Rights Reserved.
        !            29:  * 
        !            30:  * Permission to use, copy, modify and distribute this software and its
        !            31:  * documentation is hereby granted, provided that both the copyright
        !            32:  * notice and this permission notice appear in all copies of the
        !            33:  * software, derivative works or modified versions, and any portions
        !            34:  * thereof, and that both notices appear in supporting documentation.
        !            35:  * 
        !            36:  * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
        !            37:  * CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
        !            38:  * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
        !            39:  * 
        !            40:  * Carnegie Mellon requests users of this software to return to
        !            41:  * 
        !            42:  *  Software Distribution Coordinator  or  [email protected]
        !            43:  *  School of Computer Science
        !            44:  *  Carnegie Mellon University
        !            45:  *  Pittsburgh PA 15213-3890
        !            46:  * 
        !            47:  * any improvements or extensions that they make and grant Carnegie Mellon
        !            48:  * the rights to redistribute these changes.
        !            49:  */
        !            50: /*
        !            51:  * HISTORY
        !            52:  */
        !            53: 
        !            54: #include <mach_ipc_compat.h>
        !            55: 
        !            56: #include <mach/port.h>
        !            57: #include <mach/kern_return.h>
        !            58: #include <kern/syscall_sw.h>
        !            59: 
        !            60: /* Include declarations of the trap functions. */
        !            61: #include <mach/mach_traps.h>
        !            62: #include <mach/message.h>
        !            63: #include <kern/syscall_subr.h>
        !            64: #include <kern/time_stamp.h>
        !            65: 
        !            66: 
        !            67: /*
        !            68:  *     To add a new entry:
        !            69:  *             Add an "MACH_TRAP(routine, arg count)" to the table below.
        !            70:  *
        !            71:  *             Add trap definition to mach/syscall_sw.h and
        !            72:  *             recompile user library.
        !            73:  *
        !            74:  * WARNING:    If you add a trap which requires more than 7
        !            75:  *             parameters, mach/ca/syscall_sw.h and ca/trap.c both need
        !            76:  *             to be modified for it to work successfully on an
        !            77:  *             RT.  Similarly, mach/mips/syscall_sw.h and mips/locore.s
        !            78:  *             need to be modified before it will work on Pmaxen.
        !            79:  *
        !            80:  * WARNING:    Don't use numbers 0 through -9.  They (along with
        !            81:  *             the positive numbers) are reserved for Unix.
        !            82:  */
        !            83: 
        !            84: mach_port_t    null_port()
        !            85: {
        !            86:        return(MACH_PORT_NULL);
        !            87: }
        !            88: 
        !            89: kern_return_t  kern_invalid()
        !            90: {
        !            91:        return(KERN_INVALID_ARGUMENT);
        !            92: }
        !            93: 
        !            94: 
        !            95: 
        !            96: #import <driverkit.h>
        !            97: 
        !            98: #if    !DRIVERKIT
        !            99: #define        device_master_self      kern_invalid
        !           100: #endif
        !           101: 
        !           102: mach_trap_t    mach_trap_table[] = {
        !           103:        MACH_TRAP(kern_invalid, 0),             /* 0 */         /* Unix */
        !           104:        MACH_TRAP(kern_invalid, 0),             /* 1 */         /* Unix */
        !           105:        MACH_TRAP(kern_invalid, 0),             /* 2 */         /* Unix */
        !           106:        MACH_TRAP(kern_invalid, 0),             /* 3 */         /* Unix */
        !           107:        MACH_TRAP(kern_invalid, 0),             /* 4 */         /* Unix */
        !           108:        MACH_TRAP(kern_invalid, 0),             /* 5 */         /* Unix */
        !           109:        MACH_TRAP(kern_invalid, 0),             /* 6 */         /* Unix */
        !           110:        MACH_TRAP(kern_invalid, 0),             /* 7 */         /* Unix */
        !           111:        MACH_TRAP(kern_invalid, 0),             /* 8 */         /* Unix */
        !           112:        MACH_TRAP(kern_invalid, 0),             /* 9 */         /* Unix */
        !           113: 
        !           114: #if    MACH_IPC_COMPAT
        !           115:        MACH_TRAP(task_self, 0),                /* 10 */        /* obsolete */
        !           116:        MACH_TRAP(thread_reply, 0),             /* 11 */        /* obsolete */
        !           117:        MACH_TRAP(task_notify, 0),              /* 12 */        /* obsolete */
        !           118:        MACH_TRAP(thread_self, 0),              /* 13 */        /* obsolete */
        !           119: #else  /* MACH_IPC_COMPAT */
        !           120:        MACH_TRAP(null_port, 0),                /* 10 */
        !           121:        MACH_TRAP(null_port, 0),                /* 11 */
        !           122:        MACH_TRAP(null_port, 0),                /* 12 */
        !           123:        MACH_TRAP(null_port, 0),                /* 13 */
        !           124: #endif /* MACH_IPC_COMPAT */
        !           125:        MACH_TRAP(kern_invalid, 0),             /* 14 */
        !           126:        MACH_TRAP(kern_invalid, 0),             /* 15 */
        !           127:        MACH_TRAP(kern_invalid, 0),             /* 16 */
        !           128:        MACH_TRAP(kern_invalid, 0),             /* 17 */
        !           129:        MACH_TRAP(kern_invalid, 0),             /* 18 */
        !           130:        MACH_TRAP(kern_invalid, 0),             /* 19 */
        !           131: 
        !           132: #if    MACH_IPC_COMPAT
        !           133:        MACH_TRAP_STACK(msg_send_trap, 4),      /* 20 */        /* obsolete */
        !           134:        MACH_TRAP_STACK(msg_receive_trap, 5),   /* 21 */        /* obsolete */
        !           135:        MACH_TRAP_STACK(msg_rpc_trap, 6),       /* 22 */        /* obsolete */
        !           136: #else  /* MACH_IPC_COMPAT */
        !           137:        MACH_TRAP(kern_invalid, 0),             /* 20 */
        !           138:        MACH_TRAP(kern_invalid, 0),             /* 21 */
        !           139:        MACH_TRAP(kern_invalid, 0),             /* 22 */
        !           140: #endif /* MACH_IPC_COMPAT */
        !           141:        MACH_TRAP(kern_invalid, 0),             /* 23 */
        !           142:        MACH_TRAP_STACK(mach_msg_simple_trap, 5),
        !           143:                                                /* 24 */
        !           144:        MACH_TRAP_STACK(mach_msg_trap, 7),      /* 25 */
        !           145:        MACH_TRAP(mach_reply_port, 0),          /* 26 */
        !           146:        MACH_TRAP(mach_thread_self, 0),         /* 27 */
        !           147:        MACH_TRAP(mach_task_self, 0),           /* 28 */
        !           148:        MACH_TRAP(mach_host_self, 0),           /* 29 */
        !           149: 
        !           150:        MACH_TRAP(kern_invalid, 0),             /* 30 */
        !           151:        MACH_TRAP(kern_invalid, 0),             /* 31 */
        !           152:        MACH_TRAP_STACK(mach_msg_overwrite_trap, 9), /* 32 */
        !           153:        MACH_TRAP(task_by_pid, 1),              /* 33 */
        !           154:        MACH_TRAP(kern_invalid, 0),             /* 34 */
        !           155:        MACH_TRAP(_lookupd_port, 1),            /* 35 */
        !           156:        MACH_TRAP(_lookupd_port1, 1),           /* 36 */
        !           157:        MACH_TRAP(kern_invalid, 0),             /* 37 */
        !           158:        MACH_TRAP(kern_invalid, 0),             /* 38 */
        !           159: 
        !           160:        MACH_TRAP(kern_invalid, 0),             /* 39 */
        !           161:        MACH_TRAP(mach_swapon, 4),              /* 40 */
        !           162: 
        !           163:        MACH_TRAP(init_process, 0),             /* 41 */
        !           164:        MACH_TRAP(kern_invalid, 0),             /* 42 */
        !           165:        MACH_TRAP(map_fd, 5),                   /* 43 */
        !           166:        MACH_TRAP(kern_invalid, 0),             /* 44 */
        !           167:        MACH_TRAP(mach_swapon, 4),              /* 45 */
        !           168:        MACH_TRAP(kern_invalid, 0),             /* 46 */
        !           169:        MACH_TRAP(kern_invalid, 0),             /* 47 */
        !           170:        MACH_TRAP(kern_invalid, 0),             /* 48 */
        !           171:        MACH_TRAP(kern_invalid, 0),             /* 49 */
        !           172: 
        !           173:        MACH_TRAP(kern_invalid, 0),             /* 50 */
        !           174:        MACH_TRAP(kern_timestamp, 1),           /* 51 */
        !           175:        MACH_TRAP(kern_invalid, 0),             /* 52 */
        !           176:        MACH_TRAP(kern_invalid, 0),             /* 53 */
        !           177:        MACH_TRAP(kern_invalid, 0),             /* 54 */
        !           178: #if    MACH_IPC_COMPAT
        !           179:        MACH_TRAP(host_self, 0),                /* 55 */
        !           180:        MACH_TRAP(host_priv_self, 0),           /* 56 */
        !           181: #else  /* MACH_IPC_COMPAT */
        !           182:        MACH_TRAP(null_port, 0),                /* 55 */
        !           183:        MACH_TRAP(null_port, 0),                /* 56 */
        !           184: #endif /* MACH_IPC_COMPAT */
        !           185:        MACH_TRAP(kern_invalid, 0),             /* 57 */
        !           186:        MACH_TRAP(kern_invalid, 0),             /* 58 */
        !           187:        MACH_TRAP_STACK(swtch_pri, 1),          /* 59 */
        !           188: 
        !           189:        MACH_TRAP_STACK(swtch, 0),              /* 60 */
        !           190:        MACH_TRAP_STACK(thread_switch, 3),      /* 61 */
        !           191:        MACH_TRAP(kern_invalid, 0),             /* 62 */
        !           192:        MACH_TRAP(kern_invalid, 0),             /* 63 */
        !           193:        MACH_TRAP(kern_invalid, 0),             /* 64 */
        !           194:        MACH_TRAP(kern_invalid, 0),             /* 65 */
        !           195:        MACH_TRAP(kern_invalid, 0),             /* 66 */
        !           196:        MACH_TRAP(kern_invalid, 0),             /* 67 */
        !           197:        MACH_TRAP(_event_port_by_tag, 1),       /* 68 */
        !           198:        MACH_TRAP(device_master_self, 0),       /* 69 */
        !           199: };
        !           200: 
        !           201: int    mach_trap_count = (sizeof(mach_trap_table) / sizeof(mach_trap_table[0]));

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