| 1 | /* Target operations for the remote server for GDB. |
| 2 | Copyright (C) 2002-2020 Free Software Foundation, Inc. |
| 3 | |
| 4 | Contributed by MontaVista Software. |
| 5 | |
| 6 | This file is part of GDB. |
| 7 | |
| 8 | This program is free software; you can redistribute it and/or modify |
| 9 | it under the terms of the GNU General Public License as published by |
| 10 | the Free Software Foundation; either version 3 of the License, or |
| 11 | (at your option) any later version. |
| 12 | |
| 13 | This program is distributed in the hope that it will be useful, |
| 14 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 16 | GNU General Public License for more details. |
| 17 | |
| 18 | You should have received a copy of the GNU General Public License |
| 19 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| 20 | |
| 21 | #include "server.h" |
| 22 | #include "tracepoint.h" |
| 23 | #include "gdbsupport/byte-vector.h" |
| 24 | #include "hostio.h" |
| 25 | #include <fcntl.h> |
| 26 | #include <unistd.h> |
| 27 | #include <sys/types.h> |
| 28 | #include <sys/stat.h> |
| 29 | |
| 30 | process_stratum_target *the_target; |
| 31 | |
| 32 | int |
| 33 | set_desired_thread () |
| 34 | { |
| 35 | client_state &cs = get_client_state (); |
| 36 | thread_info *found = find_thread_ptid (cs.general_thread); |
| 37 | |
| 38 | current_thread = found; |
| 39 | return (current_thread != NULL); |
| 40 | } |
| 41 | |
| 42 | /* The thread that was current before prepare_to_access_memory was |
| 43 | called. done_accessing_memory uses this to restore the previous |
| 44 | selected thread. */ |
| 45 | static ptid_t prev_general_thread; |
| 46 | |
| 47 | /* See target.h. */ |
| 48 | |
| 49 | int |
| 50 | prepare_to_access_memory (void) |
| 51 | { |
| 52 | client_state &cs = get_client_state (); |
| 53 | |
| 54 | /* The first thread found. */ |
| 55 | struct thread_info *first = NULL; |
| 56 | /* The first stopped thread found. */ |
| 57 | struct thread_info *stopped = NULL; |
| 58 | /* The current general thread, if found. */ |
| 59 | struct thread_info *current = NULL; |
| 60 | |
| 61 | /* Save the general thread value, since prepare_to_access_memory could change |
| 62 | it. */ |
| 63 | prev_general_thread = cs.general_thread; |
| 64 | |
| 65 | int res = the_target->prepare_to_access_memory (); |
| 66 | if (res != 0) |
| 67 | return res; |
| 68 | |
| 69 | for_each_thread (prev_general_thread.pid (), [&] (thread_info *thread) |
| 70 | { |
| 71 | if (mythread_alive (thread->id)) |
| 72 | { |
| 73 | if (stopped == NULL && the_target->supports_thread_stopped () |
| 74 | && target_thread_stopped (thread)) |
| 75 | stopped = thread; |
| 76 | |
| 77 | if (first == NULL) |
| 78 | first = thread; |
| 79 | |
| 80 | if (current == NULL && prev_general_thread == thread->id) |
| 81 | current = thread; |
| 82 | } |
| 83 | }); |
| 84 | |
| 85 | /* The thread we end up choosing. */ |
| 86 | struct thread_info *thread; |
| 87 | |
| 88 | /* Prefer a stopped thread. If none is found, try the current |
| 89 | thread. Otherwise, take the first thread in the process. If |
| 90 | none is found, undo the effects of |
| 91 | target->prepare_to_access_memory() and return error. */ |
| 92 | if (stopped != NULL) |
| 93 | thread = stopped; |
| 94 | else if (current != NULL) |
| 95 | thread = current; |
| 96 | else if (first != NULL) |
| 97 | thread = first; |
| 98 | else |
| 99 | { |
| 100 | done_accessing_memory (); |
| 101 | return 1; |
| 102 | } |
| 103 | |
| 104 | current_thread = thread; |
| 105 | cs.general_thread = ptid_of (thread); |
| 106 | |
| 107 | return 0; |
| 108 | } |
| 109 | |
| 110 | /* See target.h. */ |
| 111 | |
| 112 | void |
| 113 | done_accessing_memory (void) |
| 114 | { |
| 115 | client_state &cs = get_client_state (); |
| 116 | |
| 117 | the_target->done_accessing_memory (); |
| 118 | |
| 119 | /* Restore the previous selected thread. */ |
| 120 | cs.general_thread = prev_general_thread; |
| 121 | switch_to_thread (the_target, cs.general_thread); |
| 122 | } |
| 123 | |
| 124 | int |
| 125 | read_inferior_memory (CORE_ADDR memaddr, unsigned char *myaddr, int len) |
| 126 | { |
| 127 | int res; |
| 128 | res = the_target->read_memory (memaddr, myaddr, len); |
| 129 | check_mem_read (memaddr, myaddr, len); |
| 130 | return res; |
| 131 | } |
| 132 | |
| 133 | /* See target/target.h. */ |
| 134 | |
| 135 | int |
| 136 | target_read_memory (CORE_ADDR memaddr, gdb_byte *myaddr, ssize_t len) |
| 137 | { |
| 138 | return read_inferior_memory (memaddr, myaddr, len); |
| 139 | } |
| 140 | |
| 141 | /* See target/target.h. */ |
| 142 | |
| 143 | int |
| 144 | target_read_uint32 (CORE_ADDR memaddr, uint32_t *result) |
| 145 | { |
| 146 | return read_inferior_memory (memaddr, (gdb_byte *) result, sizeof (*result)); |
| 147 | } |
| 148 | |
| 149 | /* See target/target.h. */ |
| 150 | |
| 151 | int |
| 152 | target_write_memory (CORE_ADDR memaddr, const unsigned char *myaddr, |
| 153 | ssize_t len) |
| 154 | { |
| 155 | /* Make a copy of the data because check_mem_write may need to |
| 156 | update it. */ |
| 157 | gdb::byte_vector buffer (myaddr, myaddr + len); |
| 158 | check_mem_write (memaddr, buffer.data (), myaddr, len); |
| 159 | return the_target->write_memory (memaddr, buffer.data (), len); |
| 160 | } |
| 161 | |
| 162 | ptid_t |
| 163 | mywait (ptid_t ptid, struct target_waitstatus *ourstatus, int options, |
| 164 | int connected_wait) |
| 165 | { |
| 166 | ptid_t ret; |
| 167 | |
| 168 | if (connected_wait) |
| 169 | server_waiting = 1; |
| 170 | |
| 171 | ret = target_wait (ptid, ourstatus, options); |
| 172 | |
| 173 | /* We don't expose _LOADED events to gdbserver core. See the |
| 174 | `dlls_changed' global. */ |
| 175 | if (ourstatus->kind == TARGET_WAITKIND_LOADED) |
| 176 | ourstatus->kind = TARGET_WAITKIND_STOPPED; |
| 177 | |
| 178 | /* If GDB is connected through TCP/serial, then GDBserver will most |
| 179 | probably be running on its own terminal/console, so it's nice to |
| 180 | print there why is GDBserver exiting. If however, GDB is |
| 181 | connected through stdio, then there's no need to spam the GDB |
| 182 | console with this -- the user will already see the exit through |
| 183 | regular GDB output, in that same terminal. */ |
| 184 | if (!remote_connection_is_stdio ()) |
| 185 | { |
| 186 | if (ourstatus->kind == TARGET_WAITKIND_EXITED) |
| 187 | fprintf (stderr, |
| 188 | "\nChild exited with status %d\n", ourstatus->value.integer); |
| 189 | else if (ourstatus->kind == TARGET_WAITKIND_SIGNALLED) |
| 190 | fprintf (stderr, "\nChild terminated with signal = 0x%x (%s)\n", |
| 191 | gdb_signal_to_host (ourstatus->value.sig), |
| 192 | gdb_signal_to_name (ourstatus->value.sig)); |
| 193 | } |
| 194 | |
| 195 | if (connected_wait) |
| 196 | server_waiting = 0; |
| 197 | |
| 198 | return ret; |
| 199 | } |
| 200 | |
| 201 | /* See target/target.h. */ |
| 202 | |
| 203 | void |
| 204 | target_stop_and_wait (ptid_t ptid) |
| 205 | { |
| 206 | struct target_waitstatus status; |
| 207 | bool was_non_stop = non_stop; |
| 208 | struct thread_resume resume_info; |
| 209 | |
| 210 | resume_info.thread = ptid; |
| 211 | resume_info.kind = resume_stop; |
| 212 | resume_info.sig = GDB_SIGNAL_0; |
| 213 | the_target->resume (&resume_info, 1); |
| 214 | |
| 215 | non_stop = true; |
| 216 | mywait (ptid, &status, 0, 0); |
| 217 | non_stop = was_non_stop; |
| 218 | } |
| 219 | |
| 220 | /* See target/target.h. */ |
| 221 | |
| 222 | ptid_t |
| 223 | target_wait (ptid_t ptid, struct target_waitstatus *status, int options) |
| 224 | { |
| 225 | return the_target->wait (ptid, status, options); |
| 226 | } |
| 227 | |
| 228 | /* See target/target.h. */ |
| 229 | |
| 230 | void |
| 231 | target_mourn_inferior (ptid_t ptid) |
| 232 | { |
| 233 | the_target->mourn (find_process_pid (ptid.pid ())); |
| 234 | } |
| 235 | |
| 236 | /* See target/target.h. */ |
| 237 | |
| 238 | void |
| 239 | target_continue_no_signal (ptid_t ptid) |
| 240 | { |
| 241 | struct thread_resume resume_info; |
| 242 | |
| 243 | resume_info.thread = ptid; |
| 244 | resume_info.kind = resume_continue; |
| 245 | resume_info.sig = GDB_SIGNAL_0; |
| 246 | the_target->resume (&resume_info, 1); |
| 247 | } |
| 248 | |
| 249 | /* See target/target.h. */ |
| 250 | |
| 251 | void |
| 252 | target_continue (ptid_t ptid, enum gdb_signal signal) |
| 253 | { |
| 254 | struct thread_resume resume_info; |
| 255 | |
| 256 | resume_info.thread = ptid; |
| 257 | resume_info.kind = resume_continue; |
| 258 | resume_info.sig = gdb_signal_to_host (signal); |
| 259 | the_target->resume (&resume_info, 1); |
| 260 | } |
| 261 | |
| 262 | /* See target/target.h. */ |
| 263 | |
| 264 | int |
| 265 | target_supports_multi_process (void) |
| 266 | { |
| 267 | return the_target->supports_multi_process (); |
| 268 | } |
| 269 | |
| 270 | void |
| 271 | set_target_ops (process_stratum_target *target) |
| 272 | { |
| 273 | the_target = target; |
| 274 | } |
| 275 | |
| 276 | /* Convert pid to printable format. */ |
| 277 | |
| 278 | const char * |
| 279 | target_pid_to_str (ptid_t ptid) |
| 280 | { |
| 281 | static char buf[80]; |
| 282 | |
| 283 | if (ptid == minus_one_ptid) |
| 284 | xsnprintf (buf, sizeof (buf), "<all threads>"); |
| 285 | else if (ptid == null_ptid) |
| 286 | xsnprintf (buf, sizeof (buf), "<null thread>"); |
| 287 | else if (ptid.tid () != 0) |
| 288 | xsnprintf (buf, sizeof (buf), "Thread %d.0x%lx", |
| 289 | ptid.pid (), ptid.tid ()); |
| 290 | else if (ptid.lwp () != 0) |
| 291 | xsnprintf (buf, sizeof (buf), "LWP %d.%ld", |
| 292 | ptid.pid (), ptid.lwp ()); |
| 293 | else |
| 294 | xsnprintf (buf, sizeof (buf), "Process %d", |
| 295 | ptid.pid ()); |
| 296 | |
| 297 | return buf; |
| 298 | } |
| 299 | |
| 300 | int |
| 301 | kill_inferior (process_info *proc) |
| 302 | { |
| 303 | gdb_agent_about_to_close (proc->pid); |
| 304 | |
| 305 | return the_target->kill (proc); |
| 306 | } |
| 307 | |
| 308 | /* Define it. */ |
| 309 | |
| 310 | target_terminal_state target_terminal::m_terminal_state |
| 311 | = target_terminal_state::is_ours; |
| 312 | |
| 313 | /* See target/target.h. */ |
| 314 | |
| 315 | void |
| 316 | target_terminal::init () |
| 317 | { |
| 318 | /* Placeholder needed because of fork_inferior. Not necessary on |
| 319 | GDBserver. */ |
| 320 | } |
| 321 | |
| 322 | /* See target/target.h. */ |
| 323 | |
| 324 | void |
| 325 | target_terminal::inferior () |
| 326 | { |
| 327 | /* Placeholder needed because of fork_inferior. Not necessary on |
| 328 | GDBserver. */ |
| 329 | } |
| 330 | |
| 331 | /* See target/target.h. */ |
| 332 | |
| 333 | void |
| 334 | target_terminal::ours () |
| 335 | { |
| 336 | /* Placeholder needed because of fork_inferior. Not necessary on |
| 337 | GDBserver. */ |
| 338 | } |
| 339 | |
| 340 | /* See target/target.h. */ |
| 341 | |
| 342 | void |
| 343 | target_terminal::ours_for_output (void) |
| 344 | { |
| 345 | /* Placeholder. */ |
| 346 | } |
| 347 | |
| 348 | /* See target/target.h. */ |
| 349 | |
| 350 | void |
| 351 | target_terminal::info (const char *arg, int from_tty) |
| 352 | { |
| 353 | /* Placeholder. */ |
| 354 | } |
| 355 | |
| 356 | /* Default implementations of target ops. |
| 357 | See target.h for definitions. */ |
| 358 | |
| 359 | void |
| 360 | process_stratum_target::post_create_inferior () |
| 361 | { |
| 362 | /* Nop. */ |
| 363 | } |
| 364 | |
| 365 | int |
| 366 | process_stratum_target::prepare_to_access_memory () |
| 367 | { |
| 368 | return 0; |
| 369 | } |
| 370 | |
| 371 | void |
| 372 | process_stratum_target::done_accessing_memory () |
| 373 | { |
| 374 | /* Nop. */ |
| 375 | } |
| 376 | |
| 377 | void |
| 378 | process_stratum_target::look_up_symbols () |
| 379 | { |
| 380 | /* Nop. */ |
| 381 | } |
| 382 | |
| 383 | bool |
| 384 | process_stratum_target::supports_read_auxv () |
| 385 | { |
| 386 | return false; |
| 387 | } |
| 388 | |
| 389 | int |
| 390 | process_stratum_target::read_auxv (CORE_ADDR offset, unsigned char *myaddr, |
| 391 | unsigned int len) |
| 392 | { |
| 393 | gdb_assert_not_reached ("target op read_auxv not supported"); |
| 394 | } |
| 395 | |
| 396 | bool |
| 397 | process_stratum_target::supports_z_point_type (char z_type) |
| 398 | { |
| 399 | return false; |
| 400 | } |
| 401 | |
| 402 | int |
| 403 | process_stratum_target::insert_point (enum raw_bkpt_type type, |
| 404 | CORE_ADDR addr, |
| 405 | int size, raw_breakpoint *bp) |
| 406 | { |
| 407 | return 1; |
| 408 | } |
| 409 | |
| 410 | int |
| 411 | process_stratum_target::remove_point (enum raw_bkpt_type type, |
| 412 | CORE_ADDR addr, |
| 413 | int size, raw_breakpoint *bp) |
| 414 | { |
| 415 | return 1; |
| 416 | } |
| 417 | |
| 418 | bool |
| 419 | process_stratum_target::stopped_by_sw_breakpoint () |
| 420 | { |
| 421 | return false; |
| 422 | } |
| 423 | |
| 424 | bool |
| 425 | process_stratum_target::supports_stopped_by_sw_breakpoint () |
| 426 | { |
| 427 | return false; |
| 428 | } |
| 429 | |
| 430 | bool |
| 431 | process_stratum_target::stopped_by_hw_breakpoint () |
| 432 | { |
| 433 | return false; |
| 434 | } |
| 435 | |
| 436 | bool |
| 437 | process_stratum_target::supports_stopped_by_hw_breakpoint () |
| 438 | { |
| 439 | return false; |
| 440 | } |
| 441 | |
| 442 | bool |
| 443 | process_stratum_target::supports_hardware_single_step () |
| 444 | { |
| 445 | return false; |
| 446 | } |
| 447 | |
| 448 | bool |
| 449 | process_stratum_target::stopped_by_watchpoint () |
| 450 | { |
| 451 | return false; |
| 452 | } |
| 453 | |
| 454 | CORE_ADDR |
| 455 | process_stratum_target::stopped_data_address () |
| 456 | { |
| 457 | return 0; |
| 458 | } |
| 459 | |
| 460 | bool |
| 461 | process_stratum_target::supports_read_offsets () |
| 462 | { |
| 463 | return false; |
| 464 | } |
| 465 | |
| 466 | int |
| 467 | process_stratum_target::read_offsets (CORE_ADDR *text, CORE_ADDR *data) |
| 468 | { |
| 469 | gdb_assert_not_reached ("target op read_offsets not supported"); |
| 470 | } |
| 471 | |
| 472 | bool |
| 473 | process_stratum_target::supports_get_tls_address () |
| 474 | { |
| 475 | return false; |
| 476 | } |
| 477 | |
| 478 | int |
| 479 | process_stratum_target::get_tls_address (thread_info *thread, |
| 480 | CORE_ADDR offset, |
| 481 | CORE_ADDR load_module, |
| 482 | CORE_ADDR *address) |
| 483 | { |
| 484 | gdb_assert_not_reached ("target op get_tls_address not supported"); |
| 485 | } |
| 486 | |
| 487 | void |
| 488 | process_stratum_target::hostio_last_error (char *buf) |
| 489 | { |
| 490 | hostio_last_error_from_errno (buf); |
| 491 | } |
| 492 | |
| 493 | bool |
| 494 | process_stratum_target::supports_qxfer_osdata () |
| 495 | { |
| 496 | return false; |
| 497 | } |
| 498 | |
| 499 | int |
| 500 | process_stratum_target::qxfer_osdata (const char *annex, |
| 501 | unsigned char *readbuf, |
| 502 | unsigned const char *writebuf, |
| 503 | CORE_ADDR offset, int len) |
| 504 | { |
| 505 | gdb_assert_not_reached ("target op qxfer_osdata not supported"); |
| 506 | } |
| 507 | |
| 508 | bool |
| 509 | process_stratum_target::supports_qxfer_siginfo () |
| 510 | { |
| 511 | return false; |
| 512 | } |
| 513 | |
| 514 | int |
| 515 | process_stratum_target::qxfer_siginfo (const char *annex, |
| 516 | unsigned char *readbuf, |
| 517 | unsigned const char *writebuf, |
| 518 | CORE_ADDR offset, int len) |
| 519 | { |
| 520 | gdb_assert_not_reached ("target op qxfer_siginfo not supported"); |
| 521 | } |
| 522 | |
| 523 | bool |
| 524 | process_stratum_target::supports_non_stop () |
| 525 | { |
| 526 | return false; |
| 527 | } |
| 528 | |
| 529 | bool |
| 530 | process_stratum_target::async (bool enable) |
| 531 | { |
| 532 | return false; |
| 533 | } |
| 534 | |
| 535 | int |
| 536 | process_stratum_target::start_non_stop (bool enable) |
| 537 | { |
| 538 | if (enable) |
| 539 | return -1; |
| 540 | else |
| 541 | return 0; |
| 542 | } |
| 543 | |
| 544 | bool |
| 545 | process_stratum_target::supports_multi_process () |
| 546 | { |
| 547 | return false; |
| 548 | } |
| 549 | |
| 550 | bool |
| 551 | process_stratum_target::supports_fork_events () |
| 552 | { |
| 553 | return false; |
| 554 | } |
| 555 | |
| 556 | bool |
| 557 | process_stratum_target::supports_vfork_events () |
| 558 | { |
| 559 | return false; |
| 560 | } |
| 561 | |
| 562 | bool |
| 563 | process_stratum_target::supports_exec_events () |
| 564 | { |
| 565 | return false; |
| 566 | } |
| 567 | |
| 568 | void |
| 569 | process_stratum_target::handle_new_gdb_connection () |
| 570 | { |
| 571 | /* Nop. */ |
| 572 | } |
| 573 | |
| 574 | int |
| 575 | process_stratum_target::handle_monitor_command (char *mon) |
| 576 | { |
| 577 | return 0; |
| 578 | } |
| 579 | |
| 580 | int |
| 581 | process_stratum_target::core_of_thread (ptid_t ptid) |
| 582 | { |
| 583 | return -1; |
| 584 | } |
| 585 | |
| 586 | bool |
| 587 | process_stratum_target::supports_read_loadmap () |
| 588 | { |
| 589 | return false; |
| 590 | } |
| 591 | |
| 592 | int |
| 593 | process_stratum_target::read_loadmap (const char *annex, |
| 594 | CORE_ADDR offset, |
| 595 | unsigned char *myaddr, |
| 596 | unsigned int len) |
| 597 | { |
| 598 | gdb_assert_not_reached ("target op read_loadmap not supported"); |
| 599 | } |
| 600 | |
| 601 | void |
| 602 | process_stratum_target::process_qsupported (char **features, int count) |
| 603 | { |
| 604 | /* Nop. */ |
| 605 | } |
| 606 | |
| 607 | bool |
| 608 | process_stratum_target::supports_tracepoints () |
| 609 | { |
| 610 | return false; |
| 611 | } |
| 612 | |
| 613 | CORE_ADDR |
| 614 | process_stratum_target::read_pc (regcache *regcache) |
| 615 | { |
| 616 | gdb_assert_not_reached ("process_target::read_pc: Unable to find PC"); |
| 617 | } |
| 618 | |
| 619 | void |
| 620 | process_stratum_target::write_pc (regcache *regcache, CORE_ADDR pc) |
| 621 | { |
| 622 | gdb_assert_not_reached ("process_target::write_pc: Unable to update PC"); |
| 623 | } |
| 624 | |
| 625 | bool |
| 626 | process_stratum_target::supports_thread_stopped () |
| 627 | { |
| 628 | return false; |
| 629 | } |
| 630 | |
| 631 | bool |
| 632 | process_stratum_target::thread_stopped (thread_info *thread) |
| 633 | { |
| 634 | gdb_assert_not_reached ("target op thread_stopped not supported"); |
| 635 | } |
| 636 | |
| 637 | bool |
| 638 | process_stratum_target::supports_get_tib_address () |
| 639 | { |
| 640 | return false; |
| 641 | } |
| 642 | |
| 643 | int |
| 644 | process_stratum_target::get_tib_address (ptid_t ptid, CORE_ADDR *address) |
| 645 | { |
| 646 | gdb_assert_not_reached ("target op get_tib_address not supported"); |
| 647 | } |
| 648 | |
| 649 | void |
| 650 | process_stratum_target::pause_all (bool freeze) |
| 651 | { |
| 652 | /* Nop. */ |
| 653 | } |
| 654 | |
| 655 | void |
| 656 | process_stratum_target::unpause_all (bool unfreeze) |
| 657 | { |
| 658 | /* Nop. */ |
| 659 | } |
| 660 | |
| 661 | void |
| 662 | process_stratum_target::stabilize_threads () |
| 663 | { |
| 664 | /* Nop. */ |
| 665 | } |
| 666 | |
| 667 | bool |
| 668 | process_stratum_target::supports_fast_tracepoints () |
| 669 | { |
| 670 | return false; |
| 671 | } |
| 672 | |
| 673 | int |
| 674 | process_stratum_target::install_fast_tracepoint_jump_pad |
| 675 | (CORE_ADDR tpoint, CORE_ADDR tpaddr, CORE_ADDR collector, |
| 676 | CORE_ADDR lockaddr, ULONGEST orig_size, CORE_ADDR *jump_entry, |
| 677 | CORE_ADDR *trampoline, ULONGEST *trampoline_size, |
| 678 | unsigned char *jjump_pad_insn, ULONGEST *jjump_pad_insn_size, |
| 679 | CORE_ADDR *adjusted_insn_addr, CORE_ADDR *adjusted_insn_addr_end, |
| 680 | char *err) |
| 681 | { |
| 682 | gdb_assert_not_reached ("target op install_fast_tracepoint_jump_pad " |
| 683 | "not supported"); |
| 684 | } |
| 685 | |
| 686 | int |
| 687 | process_stratum_target::get_min_fast_tracepoint_insn_len () |
| 688 | { |
| 689 | return 0; |
| 690 | } |
| 691 | |
| 692 | struct emit_ops * |
| 693 | process_stratum_target::emit_ops () |
| 694 | { |
| 695 | return nullptr; |
| 696 | } |
| 697 | |
| 698 | bool |
| 699 | process_stratum_target::supports_disable_randomization () |
| 700 | { |
| 701 | return false; |
| 702 | } |
| 703 | |
| 704 | bool |
| 705 | process_stratum_target::supports_qxfer_libraries_svr4 () |
| 706 | { |
| 707 | return false; |
| 708 | } |
| 709 | |
| 710 | int |
| 711 | process_stratum_target::qxfer_libraries_svr4 (const char *annex, |
| 712 | unsigned char *readbuf, |
| 713 | unsigned const char *writebuf, |
| 714 | CORE_ADDR offset, int len) |
| 715 | { |
| 716 | gdb_assert_not_reached ("target op qxfer_libraries_svr4 not supported"); |
| 717 | } |
| 718 | |
| 719 | bool |
| 720 | process_stratum_target::supports_agent () |
| 721 | { |
| 722 | return false; |
| 723 | } |
| 724 | |
| 725 | btrace_target_info * |
| 726 | process_stratum_target::enable_btrace (ptid_t ptid, const btrace_config *conf) |
| 727 | { |
| 728 | error (_("Target does not support branch tracing.")); |
| 729 | } |
| 730 | |
| 731 | int |
| 732 | process_stratum_target::disable_btrace (btrace_target_info *tinfo) |
| 733 | { |
| 734 | error (_("Target does not support branch tracing.")); |
| 735 | } |
| 736 | |
| 737 | int |
| 738 | process_stratum_target::read_btrace (btrace_target_info *tinfo, |
| 739 | buffer *buffer, |
| 740 | enum btrace_read_type type) |
| 741 | { |
| 742 | error (_("Target does not support branch tracing.")); |
| 743 | } |
| 744 | |
| 745 | int |
| 746 | process_stratum_target::read_btrace_conf (const btrace_target_info *tinfo, |
| 747 | buffer *buffer) |
| 748 | { |
| 749 | error (_("Target does not support branch tracing.")); |
| 750 | } |
| 751 | |
| 752 | bool |
| 753 | process_stratum_target::supports_range_stepping () |
| 754 | { |
| 755 | return false; |
| 756 | } |
| 757 | |
| 758 | bool |
| 759 | process_stratum_target::supports_pid_to_exec_file () |
| 760 | { |
| 761 | return false; |
| 762 | } |
| 763 | |
| 764 | char * |
| 765 | process_stratum_target::pid_to_exec_file (int pid) |
| 766 | { |
| 767 | gdb_assert_not_reached ("target op pid_to_exec_file not supported"); |
| 768 | } |
| 769 | |
| 770 | bool |
| 771 | process_stratum_target::supports_multifs () |
| 772 | { |
| 773 | return false; |
| 774 | } |
| 775 | |
| 776 | int |
| 777 | process_stratum_target::multifs_open (int pid, const char *filename, |
| 778 | int flags, mode_t mode) |
| 779 | { |
| 780 | return open (filename, flags, mode); |
| 781 | } |
| 782 | |
| 783 | int |
| 784 | process_stratum_target::multifs_unlink (int pid, const char *filename) |
| 785 | { |
| 786 | return unlink (filename); |
| 787 | } |
| 788 | |
| 789 | ssize_t |
| 790 | process_stratum_target::multifs_readlink (int pid, const char *filename, |
| 791 | char *buf, size_t bufsiz) |
| 792 | { |
| 793 | return readlink (filename, buf, bufsiz); |
| 794 | } |
| 795 | |
| 796 | int |
| 797 | process_stratum_target::breakpoint_kind_from_pc (CORE_ADDR *pcptr) |
| 798 | { |
| 799 | /* The default behavior is to use the size of a breakpoint as the |
| 800 | kind. */ |
| 801 | int size = 0; |
| 802 | sw_breakpoint_from_kind (0, &size); |
| 803 | return size; |
| 804 | } |
| 805 | |
| 806 | int |
| 807 | process_stratum_target::breakpoint_kind_from_current_state (CORE_ADDR *pcptr) |
| 808 | { |
| 809 | return breakpoint_kind_from_pc (pcptr); |
| 810 | } |
| 811 | |
| 812 | const char * |
| 813 | process_stratum_target::thread_name (ptid_t thread) |
| 814 | { |
| 815 | return nullptr; |
| 816 | } |
| 817 | |
| 818 | bool |
| 819 | process_stratum_target::thread_handle (ptid_t ptid, gdb_byte **handle, |
| 820 | int *handle_len) |
| 821 | { |
| 822 | return false; |
| 823 | } |
| 824 | |
| 825 | bool |
| 826 | process_stratum_target::supports_software_single_step () |
| 827 | { |
| 828 | return false; |
| 829 | } |
| 830 | |
| 831 | bool |
| 832 | process_stratum_target::supports_catch_syscall () |
| 833 | { |
| 834 | return false; |
| 835 | } |
| 836 | |
| 837 | int |
| 838 | process_stratum_target::get_ipa_tdesc_idx () |
| 839 | { |
| 840 | return 0; |
| 841 | } |