gdbserver/target.h

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