Annotation of kernel/kern/syscall_sw.c, revision 1.1.1.1

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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