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