Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/kern/syscall_sw.c
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1 /* 2 * Mach Operating System 3 * Copyright (c) 1993-1987 Carnegie Mellon University 4 * All Rights Reserved. 5 * 6 * Permission to use, copy, modify and distribute this software and its 7 * documentation is hereby granted, provided that both the copyright 8 * notice and this permission notice appear in all copies of the 9 * software, derivative works or modified versions, and any portions 10 * thereof, and that both notices appear in supporting documentation. 11 * 12 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 13 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR 14 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 15 * 16 * Carnegie Mellon requests users of this software to return to 17 * 18 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 19 * School of Computer Science 20 * Carnegie Mellon University 21 * Pittsburgh PA 15213-3890 22 * 23 * any improvements or extensions that they make and grant Carnegie Mellon 24 * the rights to redistribute these changes. 25 */ 26 /* 27 * HISTORY 28 * $Log: syscall_sw.c,v $ 29 * Revision 2.17 93/11/17 17:27:13 dbg 30 * Added traps for new timers and periodic threads. 31 * [93/07/13 dbg] 32 * 33 * Revision 2.16 93/08/10 15:11:27 mrt 34 * Put atm traps under NET_ATM conditional. 35 * [93/08/02 cmaeda] 36 * Moved syscall_device_writev_request to 39 since it 37 * was conflicting with init_process at 41. Added 38 * comments to trap numbers that are u**xoid traps 39 * handled by emulator. 40 * [93/07/19 cmaeda] 41 * 42 * Added device_write traps. 43 * [93/07/03 cmaeda] 44 * 45 * Added evc_wait_clear. Very similar to evc_wait. 46 * [93/07/03 cmaeda] 47 * 48 * Included traps for network interface. 49 * [93/06/09 15:42:13 jcb] 50 * 51 * Revision 2.15 92/08/03 17:39:34 jfriedl 52 * removed silly prototypes 53 * [92/08/02 jfriedl] 54 * 55 * Revision 2.14 92/05/21 17:16:12 jfriedl 56 * tried prototypes. 57 * [92/05/20 jfriedl] 58 * 59 * Revision 2.13 92/02/19 16:06:58 elf 60 * Added syscall_thread_depress_abort. 61 * [92/01/20 rwd] 62 * 63 * Revision 2.12 92/01/03 20:40:19 dbg 64 * Use continuations always in evc_wait. 65 * [91/12/27 af] 66 * 67 * Revision 2.11 91/12/13 14:54:49 jsb 68 * Added evc_wait(). 69 * [91/12/12 17:42:00 af] 70 * 71 * Revision 2.10 91/05/14 16:47:45 mrt 72 * Correcting copyright 73 * 74 * Revision 2.9 91/03/16 14:52:12 rpd 75 * Changed swtch, swtch_pri, and thread_switch to MACH_TRAP_STACK. 76 * [91/01/17 rpd] 77 * 78 * Revision 2.8 91/02/05 17:29:44 mrt 79 * Changed to new Mach copyright 80 * [91/02/01 16:18:37 mrt] 81 * 82 * Revision 2.7 91/01/08 15:17:21 rpd 83 * Changed to use MACH_TRAP_STACK appropriately. 84 * [90/12/27 21:20:57 rpd] 85 * 86 * Revision 2.6 90/09/09 14:32:58 rpd 87 * Added mach_port_allocate_name 88 * [90/09/05 rwd] 89 * 90 * Revision 2.5 90/06/19 22:59:30 rpd 91 * Added mach_port_allocate, mach_port_deallocate, mach_port_insert_right. 92 * [90/06/02 rpd] 93 * 94 * Revision 2.4 90/06/02 14:56:26 rpd 95 * Updated for new IPC and scheduling technology. 96 * [90/03/26 22:20:34 rpd] 97 * 98 * Revision 2.3 90/05/29 18:36:48 rwd 99 * New traps from rfr (vm_map, task_create etc.) 100 * [90/04/20 rwd] 101 * 102 * Revision 2.2 89/10/16 15:22:13 rwd 103 * Added debug option for kern_invalid. 104 * [89/09/29 rwd] 105 * 106 * Made swtch_pri trap call swtch, ignoring priority argument (it 107 * scrambles scheduling). 108 * [89/02/02 dbg] 109 * 110 * Removed all non-MACH calls and options. 111 * [88/10/28 dbg] 112 * 113 * Revision 2.1 89/08/03 15:51:36 rwd 114 * Created. 115 * 116 * Revision 2.8 89/03/05 16:48:24 rpd 117 * Renamed the obsolete msg_{send,receive,rpc} traps to 118 * msg_{send,receive,rpc}_old. 119 * [89/02/15 13:50:10 rpd] 120 * 121 * Revision 2.7 89/02/25 18:09:05 gm0w 122 * Changes for cleanup. 123 * 124 * Revision 2.6 89/01/10 23:32:13 rpd 125 * Added MACH_IPC_XXXHACK conditionals around the obsolete IPC traps. 126 * [89/01/10 23:10:07 rpd] 127 * 128 * Revision 2.5 88/12/19 02:47:31 mwyoung 129 * Removed old MACH conditionals. 130 * [88/12/13 mwyoung] 131 * 132 * Revision 2.4 88/10/27 10:48:53 rpd 133 * Changed msg_{send,receive,rpc}_trap to 20, 21, 22. 134 * [88/10/26 14:45:13 rpd] 135 * 136 * Revision 2.3 88/10/11 10:20:33 rpd 137 * Changed includes to the new style. Replaced msg_receive_, 138 * msg_rpc_ with msg_send_trap, msg_receive_trap, msg_rpc_trap. 139 * [88/10/06 12:22:30 rpd] 140 * 141 * 7-Apr-88 David Black (dlb) at Carnegie-Mellon University 142 * removed thread_times(). 143 * 144 * 18-Jan-88 David Golub (dbg) at Carnegie-Mellon University 145 * Replaced task_data with thread_reply; change is invisible to 146 * users. 147 * 148 * 03-Mar-88 Douglas Orr (dorr) at Carnegie-Mellon University 149 * Added htg_u**x_syscall() 150 * 151 * 27-Apr-87 Michael Young (mwyoung) at Carnegie-Mellon University 152 * Added new forms of msg_receive, msg_rpc. 153 * 154 * 1-Apr-87 William Bolosky (bolosky) at Carnegie-Mellon University 155 * Added "WARNING:" comment. 156 * 157 * 30-Mar-87 David Black (dlb) at Carnegie-Mellon University 158 * Added kern_timestamp() 159 * 160 * 27-Mar-87 David Black (dlb) at Carnegie-Mellon University 161 * Added thread_times() for MACH_TIME_NEW. Flushed MACH_TIME. 162 * 163 * 25-Mar-87 Avadis Tevanian (avie) at Carnegie-Mellon University 164 * Added map_fd. 165 * 166 * 27-Feb-87 Michael Young (mwyoung) at Carnegie-Mellon University 167 * MACH_IPC: Turn off Accent compatibility traps. 168 * 169 * 4-Feb-87 Michael Young (mwyoung) at Carnegie-Mellon University 170 * Added ctimes() routine, to make a workable restore program. 171 * 172 * 10-Nov-86 Michael Young (mwyoung) at Carnegie-Mellon University 173 * Eliminated KPortToPID. 174 * 175 * 7-Nov-86 Michael Young (mwyoung) at Carnegie-Mellon University 176 * Added "init_process". 177 * 178 * 29-Oct-86 Michael Young (mwyoung) at Carnegie-Mellon University 179 * Added inode_swap_preference. 180 * 181 * 12-Oct-86 Michael Young (mwyoung) at Carnegie-Mellon University 182 * Major reorganization: added msg_send, msg_receive, msg_rpc; 183 * moved real Mach traps up front; renamed table. 184 */ 185 186 #include <mach_ipc_compat.h> 187 #include <mach_rt.h> 188 #include <net_atm.h> 189 190 #include <mach/port.h> 191 #include <mach/kern_return.h> 192 #include <kern/syscall_sw.h> 193 194 /* Include declarations of the trap functions. */ 195 #include <mach/mach_traps.h> 196 #include <mach/message.h> 197 #include <kern/syscall_subr.h> 198 #include <chips/nw_mk.h> 199 200 201 /* 202 * To add a new entry: 203 * Add an "MACH_TRAP(routine, arg count)" to the table below. 204 * 205 * Add trap definition to mach/syscall_sw.h and 206 * recompile user library. 207 * 208 * WARNING: If you add a trap which requires more than 7 209 * parameters, mach/ca/syscall_sw.h and ca/trap.c both need 210 * to be modified for it to work successfully on an 211 * RT. Similarly, mach/mips/syscall_sw.h and mips/locore.s 212 * need to be modified before it will work on Pmaxen. 213 * 214 * WARNING: Don't use numbers 0 through -9. They (along with 215 * the positive numbers) are reserved for Unix. 216 */ 217 218 int kern_invalid_debug = 0; 219 220 mach_port_t null_port() 221 { 222 if (kern_invalid_debug) Debugger("null_port mach trap"); 223 return(MACH_PORT_NULL); 224 } 225 226 kern_return_t kern_invalid() 227 { 228 if (kern_invalid_debug) Debugger("kern_invalid mach trap"); 229 return(KERN_INVALID_ARGUMENT); 230 } 231 232 extern kern_return_t syscall_vm_map(); 233 extern kern_return_t syscall_vm_allocate(); 234 extern kern_return_t syscall_vm_deallocate(); 235 236 extern kern_return_t syscall_task_create(); 237 extern kern_return_t syscall_task_terminate(); 238 extern kern_return_t syscall_task_suspend(); 239 extern kern_return_t syscall_task_set_special_port(); 240 241 extern kern_return_t syscall_mach_port_allocate(); 242 extern kern_return_t syscall_mach_port_deallocate(); 243 extern kern_return_t syscall_mach_port_insert_right(); 244 extern kern_return_t syscall_mach_port_allocate_name(); 245 246 extern kern_return_t syscall_thread_depress_abort(); 247 extern kern_return_t evc_wait(); 248 extern kern_return_t evc_wait_clear(); 249 250 #if MACH_RT 251 extern kern_return_t syscall_periodic_thread_restart(); 252 #endif 253 extern kern_return_t syscall_timer_arm(); 254 extern kern_return_t syscall_timer_sleep(); 255 extern kern_return_t syscall_timer_cancel(); 256 257 extern kern_return_t syscall_device_write_request(); 258 extern kern_return_t syscall_device_writev_request(); 259 260 mach_trap_t mach_trap_table[] = { 261 MACH_TRAP(kern_invalid, 0), /* 0 */ /* Unix */ 262 MACH_TRAP(kern_invalid, 0), /* 1 */ /* Unix */ 263 MACH_TRAP(kern_invalid, 0), /* 2 */ /* Unix */ 264 MACH_TRAP(kern_invalid, 0), /* 3 */ /* Unix */ 265 MACH_TRAP(kern_invalid, 0), /* 4 */ /* Unix */ 266 MACH_TRAP(kern_invalid, 0), /* 5 */ /* Unix */ 267 MACH_TRAP(kern_invalid, 0), /* 6 */ /* Unix */ 268 MACH_TRAP(kern_invalid, 0), /* 7 */ /* Unix */ 269 MACH_TRAP(kern_invalid, 0), /* 8 */ /* Unix */ 270 MACH_TRAP(kern_invalid, 0), /* 9 */ /* Unix */ 271 272 #if MACH_IPC_COMPAT 273 MACH_TRAP(task_self, 0), /* 10 */ /* obsolete */ 274 MACH_TRAP(thread_reply, 0), /* 11 */ /* obsolete */ 275 MACH_TRAP(task_notify, 0), /* 12 */ /* obsolete */ 276 MACH_TRAP(thread_self, 0), /* 13 */ /* obsolete */ 277 #else /* MACH_IPC_COMPAT */ 278 MACH_TRAP(null_port, 0), /* 10 */ 279 MACH_TRAP(null_port, 0), /* 11 */ 280 MACH_TRAP(null_port, 0), /* 12 */ 281 MACH_TRAP(null_port, 0), /* 13 */ 282 #endif /* MACH_IPC_COMPAT */ 283 MACH_TRAP(kern_invalid, 0), /* 14 */ 284 MACH_TRAP(kern_invalid, 0), /* 15 */ 285 MACH_TRAP(kern_invalid, 0), /* 16 */ 286 MACH_TRAP_STACK(evc_wait, 1), /* 17 */ 287 MACH_TRAP_STACK(evc_wait_clear, 1), /* 18 */ 288 MACH_TRAP(kern_invalid, 0), /* 19 */ 289 290 #if MACH_IPC_COMPAT 291 MACH_TRAP(msg_send_trap, 4), /* 20 */ /* obsolete */ 292 MACH_TRAP_STACK(msg_receive_trap, 5), /* 21 */ /* obsolete */ 293 MACH_TRAP_STACK(msg_rpc_trap, 6), /* 22 */ /* obsolete */ 294 #else /* MACH_IPC_COMPAT */ 295 MACH_TRAP(kern_invalid, 0), /* 20 */ 296 MACH_TRAP(kern_invalid, 0), /* 21 */ 297 MACH_TRAP(kern_invalid, 0), /* 22 */ 298 #endif /* MACH_IPC_COMPAT */ 299 MACH_TRAP(kern_invalid, 0), /* 23 */ 300 MACH_TRAP(kern_invalid, 0), /* 24 */ 301 MACH_TRAP_STACK(mach_msg_trap, 7), /* 25 */ 302 MACH_TRAP(mach_reply_port, 0), /* 26 */ 303 MACH_TRAP(mach_thread_self, 0), /* 27 */ 304 MACH_TRAP(mach_task_self, 0), /* 28 */ 305 MACH_TRAP(mach_host_self, 0), /* 29 */ 306 307 MACH_TRAP(kern_invalid, 0), /* 30 */ 308 MACH_TRAP(kern_invalid, 0), /* 31 */ 309 MACH_TRAP(kern_invalid, 0), /* 32 */ 310 MACH_TRAP(kern_invalid, 0), /* 33 emul: task_by_pid */ 311 MACH_TRAP(kern_invalid, 0), /* 34 emul: pid_by_task */ 312 MACH_TRAP(kern_invalid, 0), /* 35 */ 313 MACH_TRAP(kern_invalid, 0), /* 36 */ 314 MACH_TRAP(kern_invalid, 0), /* 37 */ 315 MACH_TRAP(kern_invalid, 0), /* 38 */ 316 317 MACH_TRAP(syscall_device_writev_request, 6), /* 39 */ 318 MACH_TRAP(syscall_device_write_request, 6), /* 40 */ 319 320 MACH_TRAP(kern_invalid, 0), /* 41 emul: init_process */ 321 MACH_TRAP(kern_invalid, 0), /* 42 */ 322 MACH_TRAP(kern_invalid, 0), /* 43 emul: map_fd */ 323 MACH_TRAP(kern_invalid, 0), /* 44 emul: rfs_make_symlink */ 324 MACH_TRAP(kern_invalid, 0), /* 45 */ 325 MACH_TRAP(kern_invalid, 0), /* 46 */ 326 MACH_TRAP(kern_invalid, 0), /* 47 */ 327 MACH_TRAP(kern_invalid, 0), /* 48 */ 328 MACH_TRAP(kern_invalid, 0), /* 49 */ 329 330 MACH_TRAP(kern_invalid, 0), /* 50 */ 331 MACH_TRAP(kern_invalid, 0), /* 51 */ 332 MACH_TRAP(kern_invalid, 0), /* 52 emul: htg_syscall */ 333 MACH_TRAP(kern_invalid, 0), /* 53 emul: set_ras_address */ 334 MACH_TRAP(kern_invalid, 0), /* 54 */ 335 #if MACH_IPC_COMPAT 336 MACH_TRAP(host_self, 0), /* 55 */ 337 #else /* MACH_IPC_COMPAT */ 338 MACH_TRAP(null_port, 0), /* 55 */ 339 #endif /* MACH_IPC_COMPAT */ 340 MACH_TRAP(null_port, 0), /* 56 */ 341 MACH_TRAP(kern_invalid, 0), /* 57 */ 342 MACH_TRAP(kern_invalid, 0), /* 58 */ 343 MACH_TRAP_STACK(swtch_pri, 1), /* 59 */ 344 345 MACH_TRAP_STACK(swtch, 0), /* 60 */ 346 MACH_TRAP_STACK(thread_switch, 3), /* 61 */ 347 MACH_TRAP(kern_invalid, 0), /* 62 */ 348 MACH_TRAP(kern_invalid, 0), /* 63 */ 349 MACH_TRAP(syscall_vm_map, 11), /* 64 */ 350 MACH_TRAP(syscall_vm_allocate, 4), /* 65 */ 351 MACH_TRAP(syscall_vm_deallocate, 3), /* 66 */ 352 MACH_TRAP(kern_invalid, 0), /* 67 */ 353 MACH_TRAP(syscall_task_create, 3), /* 68 */ 354 MACH_TRAP(syscall_task_terminate, 1), /* 69 */ 355 356 MACH_TRAP(syscall_task_suspend, 1), /* 70 */ 357 MACH_TRAP(syscall_task_set_special_port, 3), /* 71 */ 358 MACH_TRAP(syscall_mach_port_allocate, 3), /* 72 */ 359 MACH_TRAP(syscall_mach_port_deallocate, 2), /* 73 */ 360 MACH_TRAP(syscall_mach_port_insert_right, 4), /* 74 */ 361 MACH_TRAP(syscall_mach_port_allocate_name, 3), /* 75 */ 362 MACH_TRAP(syscall_thread_depress_abort, 1), /* 76 */ 363 MACH_TRAP(kern_invalid, 0), /* 77 */ 364 MACH_TRAP(kern_invalid, 0), /* 78 */ 365 MACH_TRAP(kern_invalid, 0), /* 79 */ 366 367 #if NET_ATM 368 MACH_TRAP(mk_update,3), /* 80 */ 369 MACH_TRAP(mk_lookup,2), /* 81 */ 370 MACH_TRAP_STACK(mk_endpoint_allocate,4), /* 82 */ 371 MACH_TRAP_STACK(mk_endpoint_deallocate,1), /* 83 */ 372 MACH_TRAP(mk_buffer_allocate,2), /* 84 */ 373 MACH_TRAP(mk_buffer_deallocate,2), /* 85 */ 374 MACH_TRAP_STACK(mk_connection_open,4), /* 86 */ 375 MACH_TRAP_STACK(mk_connection_accept,3), /* 87 */ 376 MACH_TRAP_STACK(mk_connection_close,1), /* 88 */ 377 MACH_TRAP_STACK(mk_multicast_add,4), /* 89 */ 378 MACH_TRAP_STACK(mk_multicast_drop,4), /* 90 */ 379 MACH_TRAP(mk_endpoint_status,3), /* 91 */ 380 MACH_TRAP_STACK(mk_send,3), /* 92 */ 381 MACH_TRAP_STACK(mk_receive,2), /* 93 */ 382 MACH_TRAP_STACK(mk_rpc,4), /* 94 */ 383 MACH_TRAP_STACK(mk_select,3), /* 95 */ 384 #else /* NET_ATM */ 385 MACH_TRAP(kern_invalid, 0), /* 80 */ 386 MACH_TRAP(kern_invalid, 0), /* 81 */ 387 MACH_TRAP(kern_invalid, 0), /* 82 */ 388 MACH_TRAP(kern_invalid, 0), /* 83 */ 389 MACH_TRAP(kern_invalid, 0), /* 84 */ 390 MACH_TRAP(kern_invalid, 0), /* 85 */ 391 MACH_TRAP(kern_invalid, 0), /* 86 */ 392 MACH_TRAP(kern_invalid, 0), /* 87 */ 393 MACH_TRAP(kern_invalid, 0), /* 88 */ 394 MACH_TRAP(kern_invalid, 0), /* 89 */ 395 MACH_TRAP(kern_invalid, 0), /* 90 */ 396 MACH_TRAP(kern_invalid, 0), /* 91 */ 397 MACH_TRAP(kern_invalid, 0), /* 92 */ 398 MACH_TRAP(kern_invalid, 0), /* 93 */ 399 MACH_TRAP(kern_invalid, 0), /* 94 */ 400 MACH_TRAP(kern_invalid, 0), /* 95 */ 401 #endif /* NET_ATM */ 402 403 MACH_TRAP(kern_invalid, 0), /* 96 */ 404 MACH_TRAP(kern_invalid, 0), /* 97 */ 405 MACH_TRAP(kern_invalid, 0), /* 98 */ 406 MACH_TRAP(kern_invalid, 0), /* 99 */ 407 408 MACH_TRAP(kern_invalid, 0), /* 100 */ 409 #if MACH_RT 410 MACH_TRAP(syscall_periodic_thread_restart, 1), /* 101 */ 411 #else /* MACH_RT */ 412 MACH_TRAP(kern_invalid, 0), /* 101 */ 413 #endif /* MACH_RT */ 414 MACH_TRAP(syscall_timer_arm, 8), /* 102 */ 415 MACH_TRAP_STACK(syscall_timer_sleep, 5), /* 103 */ 416 MACH_TRAP(syscall_timer_cancel, 2), /* 104 */ 417 MACH_TRAP(kern_invalid, 0), /* 105 */ 418 MACH_TRAP(kern_invalid, 0), /* 106 */ 419 MACH_TRAP(kern_invalid, 0), /* 107 */ 420 MACH_TRAP(kern_invalid, 0), /* 108 */ 421 MACH_TRAP(kern_invalid, 0), /* 109 */ 422 423 MACH_TRAP(kern_invalid, 0), /* 110 */ 424 MACH_TRAP(kern_invalid, 0), /* 111 */ 425 MACH_TRAP(kern_invalid, 0), /* 112 */ 426 MACH_TRAP(kern_invalid, 0), /* 113 */ 427 MACH_TRAP(kern_invalid, 0), /* 114 */ 428 MACH_TRAP(kern_invalid, 0), /* 115 */ 429 MACH_TRAP(kern_invalid, 0), /* 116 */ 430 MACH_TRAP(kern_invalid, 0), /* 117 */ 431 MACH_TRAP(kern_invalid, 0), /* 118 */ 432 MACH_TRAP(kern_invalid, 0), /* 119 */ 433 434 MACH_TRAP(kern_invalid, 0), /* 120 */ 435 MACH_TRAP(kern_invalid, 0), /* 121 */ 436 MACH_TRAP(kern_invalid, 0), /* 122 */ 437 MACH_TRAP(kern_invalid, 0), /* 123 */ 438 MACH_TRAP(kern_invalid, 0), /* 124 */ 439 MACH_TRAP(kern_invalid, 0), /* 125 */ 440 MACH_TRAP(kern_invalid, 0), /* 126 */ 441 MACH_TRAP(kern_invalid, 0), /* 127 */ 442 MACH_TRAP(kern_invalid, 0), /* 128 */ 443 MACH_TRAP(kern_invalid, 0), /* 129 */ 444 }; 445 446 int mach_trap_count = (sizeof(mach_trap_table) / sizeof(mach_trap_table[0]));
Cache object: afcfa26c811e35f168421e4e587ec275
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