1 /* Target operations for the remote server for GDB. 2 Copyright (C) 2002-2023 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 #ifndef GDBSERVER_TARGET_H 22 #define GDBSERVER_TARGET_H 23 24 #include <sys/types.h> /* for mode_t */ 25 #include "target/target.h" 26 #include "target/resume.h" 27 #include "target/wait.h" 28 #include "target/waitstatus.h" 29 #include "mem-break.h" 30 #include "gdbsupport/array-view.h" 31 #include "gdbsupport/btrace-common.h" 32 #include <vector> 33 #include "gdbsupport/byte-vector.h" 34 35 struct emit_ops; 36 struct buffer; 37 struct process_info; 38 39 /* This structure describes how to resume a particular thread (or all 40 threads) based on the client's request. If thread is -1, then this 41 entry applies to all threads. These are passed around as an 42 array. */ 43 44 struct thread_resume 45 { 46 ptid_t thread; 47 48 /* How to "resume". */ 49 enum resume_kind kind; 50 51 /* If non-zero, send this signal when we resume, or to stop the 52 thread. If stopping a thread, and this is 0, the target should 53 stop the thread however it best decides to (e.g., SIGSTOP on 54 linux; SuspendThread on win32). This is a host signal value (not 55 enum gdb_signal). */ 56 int sig; 57 58 /* Range to single step within. Valid only iff KIND is resume_step. 59 60 Single-step once, and then continuing stepping as long as the 61 thread stops in this range. (If the range is empty 62 [STEP_RANGE_START == STEP_RANGE_END], then this is a single-step 63 request.) */ 64 CORE_ADDR step_range_start; /* Inclusive */ 65 CORE_ADDR step_range_end; /* Exclusive */ 66 }; 67 68 /* GDBserver doesn't have a concept of strata like GDB, but we call 69 its target vector "process_stratum" anyway for the benefit of 70 shared code. */ 71 72 class process_stratum_target 73 { 74 public: 75 76 virtual ~process_stratum_target () = default; 77 78 /* Start a new process. 79 80 PROGRAM is a path to the program to execute. 81 PROGRAM_ARGS is a standard NULL-terminated array of arguments, 82 to be passed to the inferior as ``argv'' (along with PROGRAM). 83 84 Returns the new PID on success, -1 on failure. Registers the new 85 process with the process list. */ 86 virtual int create_inferior (const char *program, 87 const std::vector<char *> &program_args) = 0; 88 89 /* Do additional setup after a new process is created, including 90 exec-wrapper completion. */ 91 virtual void post_create_inferior (); 92 93 /* Attach to a running process. 94 95 PID is the process ID to attach to, specified by the user 96 or a higher layer. 97 98 Returns -1 if attaching is unsupported, 0 on success, and calls 99 error() otherwise. */ 100 virtual int attach (unsigned long pid) = 0; 101 102 /* Kill process PROC. Return -1 on failure, and 0 on success. */ 103 virtual int kill (process_info *proc) = 0; 104 105 /* Detach from process PROC. Return -1 on failure, and 0 on 106 success. */ 107 virtual int detach (process_info *proc) = 0; 108 109 /* The inferior process has died. Do what is right. */ 110 virtual void mourn (process_info *proc) = 0; 111 112 /* Wait for process PID to exit. */ 113 virtual void join (int pid) = 0; 114 115 /* Return true iff the thread with process ID PID is alive. */ 116 virtual bool thread_alive (ptid_t pid) = 0; 117 118 /* Resume the inferior process. */ 119 virtual void resume (thread_resume *resume_info, size_t n) = 0; 120 121 /* Wait for the inferior process or thread to change state. Store 122 status through argument pointer STATUS. 123 124 PTID = -1 to wait for any pid to do something, PTID(pid,0,0) to 125 wait for any thread of process pid to do something. Return ptid 126 of child, or -1 in case of error; store status through argument 127 pointer STATUS. OPTIONS is a bit set of options defined as 128 TARGET_W* above. If options contains TARGET_WNOHANG and there's 129 no child stop to report, return is 130 null_ptid/TARGET_WAITKIND_IGNORE. */ 131 virtual ptid_t wait (ptid_t ptid, target_waitstatus *status, 132 target_wait_flags options) = 0; 133 134 /* Fetch registers from the inferior process. 135 136 If REGNO is -1, fetch all registers; otherwise, fetch at least REGNO. */ 137 virtual void fetch_registers (regcache *regcache, int regno) = 0; 138 139 /* Store registers to the inferior process. 140 141 If REGNO is -1, store all registers; otherwise, store at least REGNO. */ 142 virtual void store_registers (regcache *regcache, int regno) = 0; 143 144 /* Read memory from the inferior process. This should generally be 145 called through read_inferior_memory, which handles breakpoint shadowing. 146 147 Read LEN bytes at MEMADDR into a buffer at MYADDR. 148 149 Returns 0 on success and errno on failure. */ 150 virtual int read_memory (CORE_ADDR memaddr, unsigned char *myaddr, 151 int len) = 0; 152 153 /* Write memory to the inferior process. This should generally be 154 called through target_write_memory, which handles breakpoint shadowing. 155 156 Write LEN bytes from the buffer at MYADDR to MEMADDR. 157 158 Returns 0 on success and errno on failure. */ 159 virtual int write_memory (CORE_ADDR memaddr, const unsigned char *myaddr, 160 int len) = 0; 161 162 /* Query GDB for the values of any symbols we're interested in. 163 This function is called whenever we receive a "qSymbols::" 164 query, which corresponds to every time more symbols (might) 165 become available. */ 166 virtual void look_up_symbols (); 167 168 /* Send an interrupt request to the inferior process, 169 however is appropriate. */ 170 virtual void request_interrupt () = 0; 171 172 /* Return true if the read_auxv target op is supported. */ 173 virtual bool supports_read_auxv (); 174 175 /* Read auxiliary vector data from the inferior process. 176 177 Read LEN bytes at OFFSET into a buffer at MYADDR. */ 178 virtual int read_auxv (CORE_ADDR offset, unsigned char *myaddr, 179 unsigned int len); 180 181 /* Returns true if GDB Z breakpoint type TYPE is supported, false 182 otherwise. The type is coded as follows: 183 '0' - software-breakpoint 184 '1' - hardware-breakpoint 185 '2' - write watchpoint 186 '3' - read watchpoint 187 '4' - access watchpoint 188 */ 189 virtual bool supports_z_point_type (char z_type); 190 191 /* Insert and remove a break or watchpoint. 192 Returns 0 on success, -1 on failure and 1 on unsupported. */ 193 virtual int insert_point (enum raw_bkpt_type type, CORE_ADDR addr, 194 int size, raw_breakpoint *bp); 195 196 virtual int remove_point (enum raw_bkpt_type type, CORE_ADDR addr, 197 int size, raw_breakpoint *bp); 198 199 /* Returns true if the target stopped because it executed a software 200 breakpoint instruction, false otherwise. */ 201 virtual bool stopped_by_sw_breakpoint (); 202 203 /* Returns true if the target knows whether a trap was caused by a 204 SW breakpoint triggering. */ 205 virtual bool supports_stopped_by_sw_breakpoint (); 206 207 /* Returns true if the target stopped for a hardware breakpoint. */ 208 virtual bool stopped_by_hw_breakpoint (); 209 210 /* Returns true if the target knows whether a trap was caused by a 211 HW breakpoint triggering. */ 212 virtual bool supports_stopped_by_hw_breakpoint (); 213 214 /* Returns true if the target can do hardware single step. */ 215 virtual bool supports_hardware_single_step (); 216 217 /* Returns true if target was stopped due to a watchpoint hit, false 218 otherwise. */ 219 virtual bool stopped_by_watchpoint (); 220 221 /* Returns the address associated with the watchpoint that hit, if any; 222 returns 0 otherwise. */ 223 virtual CORE_ADDR stopped_data_address (); 224 225 /* Return true if the read_offsets target op is supported. */ 226 virtual bool supports_read_offsets (); 227 228 /* Reports the text, data offsets of the executable. This is 229 needed for uclinux where the executable is relocated during load 230 time. */ 231 virtual int read_offsets (CORE_ADDR *text, CORE_ADDR *data); 232 233 /* Return true if the get_tls_address target op is supported. */ 234 virtual bool supports_get_tls_address (); 235 236 /* Fetch the address associated with a specific thread local storage 237 area, determined by the specified THREAD, OFFSET, and LOAD_MODULE. 238 Stores it in *ADDRESS and returns zero on success; otherwise returns 239 an error code. A return value of -1 means this system does not 240 support the operation. */ 241 virtual int get_tls_address (thread_info *thread, CORE_ADDR offset, 242 CORE_ADDR load_module, CORE_ADDR *address); 243 244 /* Return true if the qxfer_osdata target op is supported. */ 245 virtual bool supports_qxfer_osdata (); 246 247 /* Read/Write OS data using qXfer packets. */ 248 virtual int qxfer_osdata (const char *annex, unsigned char *readbuf, 249 unsigned const char *writebuf, 250 CORE_ADDR offset, int len); 251 252 /* Return true if the qxfer_siginfo target op is supported. */ 253 virtual bool supports_qxfer_siginfo (); 254 255 /* Read/Write extra signal info. */ 256 virtual int qxfer_siginfo (const char *annex, unsigned char *readbuf, 257 unsigned const char *writebuf, 258 CORE_ADDR offset, int len); 259 260 /* Return true if non-stop mode is supported. */ 261 virtual bool supports_non_stop (); 262 263 /* Enables async target events. Returns the previous enable 264 state. */ 265 virtual bool async (bool enable); 266 267 /* Switch to non-stop (ENABLE == true) or all-stop (ENABLE == false) 268 mode. Return 0 on success, -1 otherwise. */ 269 virtual int start_non_stop (bool enable); 270 271 /* Returns true if the target supports multi-process debugging. */ 272 virtual bool supports_multi_process (); 273 274 /* Returns true if fork events are supported. */ 275 virtual bool supports_fork_events (); 276 277 /* Returns true if vfork events are supported. */ 278 virtual bool supports_vfork_events (); 279 280 /* Returns true if exec events are supported. */ 281 virtual bool supports_exec_events (); 282 283 /* Allows target to re-initialize connection-specific settings. */ 284 virtual void handle_new_gdb_connection (); 285 286 /* The target-specific routine to process monitor command. 287 Returns 1 if handled, or 0 to perform default processing. */ 288 virtual int handle_monitor_command (char *mon); 289 290 /* Returns the core given a thread, or -1 if not known. */ 291 virtual int core_of_thread (ptid_t ptid); 292 293 /* Returns true if the read_loadmap target op is supported. */ 294 virtual bool supports_read_loadmap (); 295 296 /* Read loadmaps. Read LEN bytes at OFFSET into a buffer at MYADDR. */ 297 virtual int read_loadmap (const char *annex, CORE_ADDR offset, 298 unsigned char *myaddr, unsigned int len); 299 300 /* Target specific qSupported support. FEATURES is an array of 301 features unsupported by the core of GDBserver. */ 302 virtual void process_qsupported 303 (gdb::array_view<const char * const> features); 304 305 /* Return true if the target supports tracepoints, false otherwise. */ 306 virtual bool supports_tracepoints (); 307 308 /* Read PC from REGCACHE. */ 309 virtual CORE_ADDR read_pc (regcache *regcache); 310 311 /* Write PC to REGCACHE. */ 312 virtual void write_pc (regcache *regcache, CORE_ADDR pc); 313 314 /* Return true if the thread_stopped op is supported. */ 315 virtual bool supports_thread_stopped (); 316 317 /* Return true if THREAD is known to be stopped now. */ 318 virtual bool thread_stopped (thread_info *thread); 319 320 /* Return true if the get_tib_address op is supported. */ 321 virtual bool supports_get_tib_address (); 322 323 /* Read Thread Information Block address. */ 324 virtual int get_tib_address (ptid_t ptid, CORE_ADDR *address); 325 326 /* Pause all threads. If FREEZE, arrange for any resume attempt to 327 be ignored until an unpause_all call unfreezes threads again. 328 There can be nested calls to pause_all, so a freeze counter 329 should be maintained. */ 330 virtual void pause_all (bool freeze); 331 332 /* Unpause all threads. Threads that hadn't been resumed by the 333 client should be left stopped. Basically a pause/unpause call 334 pair should not end up resuming threads that were stopped before 335 the pause call. */ 336 virtual void unpause_all (bool unfreeze); 337 338 /* Stabilize all threads. That is, force them out of jump pads. */ 339 virtual void stabilize_threads (); 340 341 /* Return true if the install_fast_tracepoint_jump_pad op is 342 supported. */ 343 virtual bool supports_fast_tracepoints (); 344 345 /* Install a fast tracepoint jump pad. TPOINT is the address of the 346 tracepoint internal object as used by the IPA agent. TPADDR is 347 the address of tracepoint. COLLECTOR is address of the function 348 the jump pad redirects to. LOCKADDR is the address of the jump 349 pad lock object. ORIG_SIZE is the size in bytes of the 350 instruction at TPADDR. JUMP_ENTRY points to the address of the 351 jump pad entry, and on return holds the address past the end of 352 the created jump pad. If a trampoline is created by the function, 353 then TRAMPOLINE and TRAMPOLINE_SIZE return the address and size of 354 the trampoline, else they remain unchanged. JJUMP_PAD_INSN is a 355 buffer containing a copy of the instruction at TPADDR. 356 ADJUST_INSN_ADDR and ADJUST_INSN_ADDR_END are output parameters that 357 return the address range where the instruction at TPADDR was relocated 358 to. If an error occurs, the ERR may be used to pass on an error 359 message. */ 360 virtual int install_fast_tracepoint_jump_pad 361 (CORE_ADDR tpoint, CORE_ADDR tpaddr, CORE_ADDR collector, 362 CORE_ADDR lockaddr, ULONGEST orig_size, CORE_ADDR *jump_entry, 363 CORE_ADDR *trampoline, ULONGEST *trampoline_size, 364 unsigned char *jjump_pad_insn, ULONGEST *jjump_pad_insn_size, 365 CORE_ADDR *adjusted_insn_addr, CORE_ADDR *adjusted_insn_addr_end, 366 char *err); 367 368 /* Return the minimum length of an instruction that can be safely 369 overwritten for use as a fast tracepoint. */ 370 virtual int get_min_fast_tracepoint_insn_len (); 371 372 /* Return the bytecode operations vector for the current inferior. 373 Returns nullptr if bytecode compilation is not supported. */ 374 virtual struct emit_ops *emit_ops (); 375 376 /* Returns true if the target supports disabling randomization. */ 377 virtual bool supports_disable_randomization (); 378 379 /* Return true if the qxfer_libraries_svr4 op is supported. */ 380 virtual bool supports_qxfer_libraries_svr4 (); 381 382 /* Read solib info on SVR4 platforms. */ 383 virtual int qxfer_libraries_svr4 (const char *annex, 384 unsigned char *readbuf, 385 unsigned const char *writebuf, 386 CORE_ADDR offset, int len); 387 388 /* Return true if target supports debugging agent. */ 389 virtual bool supports_agent (); 390 391 /* Return true if target supports btrace. */ 392 virtual bool supports_btrace (); 393 394 /* Enable branch tracing for TP based on CONF and allocate a branch trace 395 target information struct for reading and for disabling branch trace. */ 396 virtual btrace_target_info *enable_btrace (thread_info *tp, 397 const btrace_config *conf); 398 399 /* Disable branch tracing. 400 Returns zero on success, non-zero otherwise. */ 401 virtual int disable_btrace (btrace_target_info *tinfo); 402 403 /* Read branch trace data into buffer. 404 Return 0 on success; print an error message into BUFFER and return -1, 405 otherwise. */ 406 virtual int read_btrace (btrace_target_info *tinfo, buffer *buf, 407 enum btrace_read_type type); 408 409 /* Read the branch trace configuration into BUFFER. 410 Return 0 on success; print an error message into BUFFER and return -1 411 otherwise. */ 412 virtual int read_btrace_conf (const btrace_target_info *tinfo, 413 buffer *buf); 414 415 /* Return true if target supports range stepping. */ 416 virtual bool supports_range_stepping (); 417 418 /* Return true if the pid_to_exec_file op is supported. */ 419 virtual bool supports_pid_to_exec_file (); 420 421 /* Return the full absolute name of the executable file that was 422 run to create the process PID. If the executable file cannot 423 be determined, NULL is returned. Otherwise, a pointer to a 424 character string containing the pathname is returned. This 425 string should be copied into a buffer by the client if the string 426 will not be immediately used, or if it must persist. */ 427 virtual const char *pid_to_exec_file (int pid); 428 429 /* Return true if any of the multifs ops is supported. */ 430 virtual bool supports_multifs (); 431 432 /* Multiple-filesystem-aware open. Like open(2), but operating in 433 the filesystem as it appears to process PID. Systems where all 434 processes share a common filesystem should not override this. 435 The default behavior is to use open(2). */ 436 virtual int multifs_open (int pid, const char *filename, 437 int flags, mode_t mode); 438 439 /* Multiple-filesystem-aware unlink. Like unlink(2), but operates 440 in the filesystem as it appears to process PID. Systems where 441 all processes share a common filesystem should not override this. 442 The default behavior is to use unlink(2). */ 443 virtual int multifs_unlink (int pid, const char *filename); 444 445 /* Multiple-filesystem-aware readlink. Like readlink(2), but 446 operating in the filesystem as it appears to process PID. 447 Systems where all processes share a common filesystem should 448 not override this. The default behavior is to use readlink(2). */ 449 virtual ssize_t multifs_readlink (int pid, const char *filename, 450 char *buf, size_t bufsiz); 451 452 /* Return the breakpoint kind for this target based on PC. The 453 PCPTR is adjusted to the real memory location in case a flag 454 (e.g., the Thumb bit on ARM) was present in the PC. */ 455 virtual int breakpoint_kind_from_pc (CORE_ADDR *pcptr); 456 457 /* Return the software breakpoint from KIND. KIND can have target 458 specific meaning like the Z0 kind parameter. 459 SIZE is set to the software breakpoint's length in memory. */ 460 virtual const gdb_byte *sw_breakpoint_from_kind (int kind, int *size) = 0; 461 462 /* Return the breakpoint kind for this target based on the current 463 processor state (e.g. the current instruction mode on ARM) and the 464 PC. The PCPTR is adjusted to the real memory location in case a 465 flag (e.g., the Thumb bit on ARM) is present in the PC. */ 466 virtual int breakpoint_kind_from_current_state (CORE_ADDR *pcptr); 467 468 /* Return the thread's name, or NULL if the target is unable to 469 determine it. The returned value must not be freed by the 470 caller. */ 471 virtual const char *thread_name (ptid_t thread); 472 473 /* Thread ID to (numeric) thread handle: Return true on success and 474 false for failure. Return pointer to thread handle via HANDLE 475 and the handle's length via HANDLE_LEN. */ 476 virtual bool thread_handle (ptid_t ptid, gdb_byte **handle, 477 int *handle_len); 478 479 /* If THREAD is a fork child that was not reported to GDB, return its parent 480 else nullptr. */ 481 virtual thread_info *thread_pending_parent (thread_info *thread); 482 483 /* If THREAD is the parent of a fork child that was not reported to GDB, 484 return this child, else nullptr. */ 485 virtual thread_info *thread_pending_child (thread_info *thread); 486 487 /* Returns true if the target can software single step. */ 488 virtual bool supports_software_single_step (); 489 490 /* Return true if the target supports catch syscall. */ 491 virtual bool supports_catch_syscall (); 492 493 /* Return tdesc index for IPA. */ 494 virtual int get_ipa_tdesc_idx (); 495 496 /* Returns true if the target supports memory tagging facilities. */ 497 virtual bool supports_memory_tagging (); 498 499 /* Return the allocated memory tags of type TYPE associated with 500 [ADDRESS, ADDRESS + LEN) in TAGS. 501 502 Returns true if successful and false otherwise. */ 503 virtual bool fetch_memtags (CORE_ADDR address, size_t len, 504 gdb::byte_vector &tags, int type); 505 506 /* Write the allocation tags of type TYPE contained in TAGS to the 507 memory range [ADDRESS, ADDRESS + LEN). 508 509 Returns true if successful and false otherwise. */ 510 virtual bool store_memtags (CORE_ADDR address, size_t len, 511 const gdb::byte_vector &tags, int type); 512 }; 513 514 extern process_stratum_target *the_target; 515 516 void set_target_ops (process_stratum_target *); 517 518 #define target_create_inferior(program, program_args) \ 519 the_target->create_inferior (program, program_args) 520 521 #define target_post_create_inferior() \ 522 the_target->post_create_inferior () 523 524 #define myattach(pid) \ 525 the_target->attach (pid) 526 527 int kill_inferior (process_info *proc); 528 529 #define target_supports_fork_events() \ 530 the_target->supports_fork_events () 531 532 #define target_supports_vfork_events() \ 533 the_target->supports_vfork_events () 534 535 #define target_supports_exec_events() \ 536 the_target->supports_exec_events () 537 538 #define target_supports_memory_tagging() \ 539 the_target->supports_memory_tagging () 540 541 #define target_handle_new_gdb_connection() \ 542 the_target->handle_new_gdb_connection () 543 544 #define detach_inferior(proc) \ 545 the_target->detach (proc) 546 547 #define mythread_alive(pid) \ 548 the_target->thread_alive (pid) 549 550 #define fetch_inferior_registers(regcache, regno) \ 551 the_target->fetch_registers (regcache, regno) 552 553 #define store_inferior_registers(regcache, regno) \ 554 the_target->store_registers (regcache, regno) 555 556 #define join_inferior(pid) \ 557 the_target->join (pid) 558 559 #define target_supports_non_stop() \ 560 the_target->supports_non_stop () 561 562 #define target_async(enable) \ 563 the_target->async (enable) 564 565 #define target_process_qsupported(features) \ 566 the_target->process_qsupported (features) 567 568 #define target_supports_catch_syscall() \ 569 the_target->supports_catch_syscall () 570 571 #define target_get_ipa_tdesc_idx() \ 572 the_target->get_ipa_tdesc_idx () 573 574 #define target_supports_tracepoints() \ 575 the_target->supports_tracepoints () 576 577 #define target_supports_fast_tracepoints() \ 578 the_target->supports_fast_tracepoints () 579 580 #define target_get_min_fast_tracepoint_insn_len() \ 581 the_target->get_min_fast_tracepoint_insn_len () 582 583 #define target_thread_stopped(thread) \ 584 the_target->thread_stopped (thread) 585 586 #define target_pause_all(freeze) \ 587 the_target->pause_all (freeze) 588 589 #define target_unpause_all(unfreeze) \ 590 the_target->unpause_all (unfreeze) 591 592 #define target_stabilize_threads() \ 593 the_target->stabilize_threads () 594 595 #define target_install_fast_tracepoint_jump_pad(tpoint, tpaddr, \ 596 collector, lockaddr, \ 597 orig_size, \ 598 jump_entry, \ 599 trampoline, trampoline_size, \ 600 jjump_pad_insn, \ 601 jjump_pad_insn_size, \ 602 adjusted_insn_addr, \ 603 adjusted_insn_addr_end, \ 604 err) \ 605 the_target->install_fast_tracepoint_jump_pad (tpoint, tpaddr, \ 606 collector,lockaddr, \ 607 orig_size, jump_entry, \ 608 trampoline, \ 609 trampoline_size, \ 610 jjump_pad_insn, \ 611 jjump_pad_insn_size, \ 612 adjusted_insn_addr, \ 613 adjusted_insn_addr_end, \ 614 err) 615 616 #define target_emit_ops() \ 617 the_target->emit_ops () 618 619 #define target_supports_disable_randomization() \ 620 the_target->supports_disable_randomization () 621 622 #define target_supports_agent() \ 623 the_target->supports_agent () 624 625 static inline struct btrace_target_info * 626 target_enable_btrace (thread_info *tp, const struct btrace_config *conf) 627 { 628 return the_target->enable_btrace (tp, conf); 629 } 630 631 static inline int 632 target_disable_btrace (struct btrace_target_info *tinfo) 633 { 634 return the_target->disable_btrace (tinfo); 635 } 636 637 static inline int 638 target_read_btrace (struct btrace_target_info *tinfo, 639 struct buffer *buffer, 640 enum btrace_read_type type) 641 { 642 return the_target->read_btrace (tinfo, buffer, type); 643 } 644 645 static inline int 646 target_read_btrace_conf (struct btrace_target_info *tinfo, 647 struct buffer *buffer) 648 { 649 return the_target->read_btrace_conf (tinfo, buffer); 650 } 651 652 #define target_supports_range_stepping() \ 653 the_target->supports_range_stepping () 654 655 #define target_supports_stopped_by_sw_breakpoint() \ 656 the_target->supports_stopped_by_sw_breakpoint () 657 658 #define target_stopped_by_sw_breakpoint() \ 659 the_target->stopped_by_sw_breakpoint () 660 661 #define target_supports_stopped_by_hw_breakpoint() \ 662 the_target->supports_stopped_by_hw_breakpoint () 663 664 #define target_supports_hardware_single_step() \ 665 the_target->supports_hardware_single_step () 666 667 #define target_stopped_by_hw_breakpoint() \ 668 the_target->stopped_by_hw_breakpoint () 669 670 #define target_breakpoint_kind_from_pc(pcptr) \ 671 the_target->breakpoint_kind_from_pc (pcptr) 672 673 #define target_breakpoint_kind_from_current_state(pcptr) \ 674 the_target->breakpoint_kind_from_current_state (pcptr) 675 676 #define target_supports_software_single_step() \ 677 the_target->supports_software_single_step () 678 679 ptid_t mywait (ptid_t ptid, struct target_waitstatus *ourstatus, 680 target_wait_flags options, int connected_wait); 681 682 #define target_core_of_thread(ptid) \ 683 the_target->core_of_thread (ptid) 684 685 #define target_thread_name(ptid) \ 686 the_target->thread_name (ptid) 687 688 #define target_thread_handle(ptid, handle, handle_len) \ 689 the_target->thread_handle (ptid, handle, handle_len) 690 691 static inline thread_info * 692 target_thread_pending_parent (thread_info *thread) 693 { 694 return the_target->thread_pending_parent (thread); 695 } 696 697 static inline thread_info * 698 target_thread_pending_child (thread_info *thread) 699 { 700 return the_target->thread_pending_child (thread); 701 } 702 703 int read_inferior_memory (CORE_ADDR memaddr, unsigned char *myaddr, int len); 704 705 /* Set GDBserver's current thread to the thread the client requested 706 via Hg. Also switches the current process to the requested 707 process. If the requested thread is not found in the thread list, 708 then the current thread is set to NULL. Likewise, if the requested 709 process is not found in the process list, then the current process 710 is set to NULL. Returns true if the requested thread was found, 711 false otherwise. */ 712 713 bool set_desired_thread (); 714 715 /* Set GDBserver's current process to the process the client requested 716 via Hg. The current thread is set to NULL. */ 717 718 bool set_desired_process (); 719 720 std::string target_pid_to_str (ptid_t); 721 722 #endif /* GDBSERVER_TARGET_H */ 723