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