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