1 /* Target operations for the remote server for GDB.
2 Copyright (C) 2002-2020 Free Software Foundation, Inc.
4 Contributed by MontaVista Software.
6 This file is part of GDB.
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.
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.
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/>. */
21 #ifndef GDBSERVER_TARGET_H
22 #define GDBSERVER_TARGET_H
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"
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
46 /* How to "resume". */
47 enum resume_kind kind
;
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
56 /* Range to single step within. Valid only iff KIND is resume_step.
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
62 CORE_ADDR step_range_start
; /* Inclusive */
63 CORE_ADDR step_range_end
; /* Exclusive */
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
71 struct process_stratum_target
73 /* The object that will gradually replace this struct. */
81 virtual ~process_target () = default;
83 /* Start a new process.
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).
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;
94 /* Do additional setup after a new process is created, including
95 exec-wrapper completion. */
96 virtual void post_create_inferior ();
98 /* Attach to a running process.
100 PID is the process ID to attach to, specified by the user
103 Returns -1 if attaching is unsupported, 0 on success, and calls
104 error() otherwise. */
105 virtual int attach (unsigned long pid
) = 0;
107 /* Kill process PROC. Return -1 on failure, and 0 on success. */
108 virtual int kill (process_info
*proc
) = 0;
110 /* Detach from process PROC. Return -1 on failure, and 0 on
112 virtual int detach (process_info
*proc
) = 0;
114 /* The inferior process has died. Do what is right. */
115 virtual void mourn (process_info
*proc
) = 0;
117 /* Wait for process PID to exit. */
118 virtual void join (int pid
) = 0;
120 /* Return true iff the thread with process ID PID is alive. */
121 virtual bool thread_alive (ptid_t pid
) = 0;
123 /* Resume the inferior process. */
124 virtual void resume (thread_resume
*resume_info
, size_t n
) = 0;
126 /* Wait for the inferior process or thread to change state. Store
127 status through argument pointer STATUS.
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
,
139 /* Fetch registers from the inferior process.
141 If REGNO is -1, fetch all registers; otherwise, fetch at least REGNO. */
142 virtual void fetch_registers (regcache
*regcache
, int regno
) = 0;
144 /* Store registers to the inferior process.
146 If REGNO is -1, store all registers; otherwise, store at least REGNO. */
147 virtual void store_registers (regcache
*regcache
, int regno
) = 0;
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.
153 This should generally only be called from client facing routines,
154 such as gdb_read_memory/gdb_write_memory, or the GDB breakpoint
157 Like `read_memory' and `write_memory' below, returns 0 on success
158 and errno on failure. */
159 virtual int prepare_to_access_memory ();
161 /* Undo the effects of prepare_to_access_memory. */
162 virtual void done_accessing_memory ();
164 /* Read memory from the inferior process. This should generally be
165 called through read_inferior_memory, which handles breakpoint shadowing.
167 Read LEN bytes at MEMADDR into a buffer at MYADDR.
169 Returns 0 on success and errno on failure. */
170 virtual int read_memory (CORE_ADDR memaddr
, unsigned char *myaddr
,
173 /* Write memory to the inferior process. This should generally be
174 called through target_write_memory, which handles breakpoint shadowing.
176 Write LEN bytes from the buffer at MYADDR to MEMADDR.
178 Returns 0 on success and errno on failure. */
179 virtual int write_memory (CORE_ADDR memaddr
, const unsigned char *myaddr
,
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)
186 virtual void look_up_symbols ();
188 /* Send an interrupt request to the inferior process,
189 however is appropriate. */
190 virtual void request_interrupt () = 0;
192 /* Return true if the read_auxv target op is supported. */
193 virtual bool supports_read_auxv ();
195 /* Read auxiliary vector data from the inferior process.
197 Read LEN bytes at OFFSET into a buffer at MYADDR. */
198 virtual int read_auxv (CORE_ADDR offset
, unsigned char *myaddr
,
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
209 virtual bool supports_z_point_type (char z_type
);
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
);
216 virtual int remove_point (enum raw_bkpt_type type
, CORE_ADDR addr
,
217 int size
, raw_breakpoint
*bp
);
219 /* Returns true if the target stopped because it executed a software
220 breakpoint instruction, false otherwise. */
221 virtual bool stopped_by_sw_breakpoint ();
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 ();
227 /* Returns true if the target stopped for a hardware breakpoint. */
228 virtual bool stopped_by_hw_breakpoint ();
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 ();
234 /* Returns true if the target can do hardware single step. */
235 virtual bool supports_hardware_single_step ();
237 /* Returns true if target was stopped due to a watchpoint hit, false
239 virtual bool stopped_by_watchpoint ();
241 /* Returns the address associated with the watchpoint that hit, if any;
242 returns 0 otherwise. */
243 virtual CORE_ADDR
stopped_data_address ();
245 /* Return true if the read_offsets target op is supported. */
246 virtual bool supports_read_offsets ();
248 /* Reports the text, data offsets of the executable. This is
249 needed for uclinux where the executable is relocated during load
251 virtual int read_offsets (CORE_ADDR
*text
, CORE_ADDR
*data
);
253 /* Return true if the get_tls_address target op is supported. */
254 virtual bool supports_get_tls_address ();
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
);
264 /* Fill BUF with an hostio error packet representing the last hostio
266 virtual void hostio_last_error (char *buf
);
268 /* Return true if the qxfer_osdata target op is supported. */
269 virtual bool supports_qxfer_osdata ();
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
);
276 /* Return true if the qxfer_siginfo target op is supported. */
277 virtual bool supports_qxfer_siginfo ();
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
);
284 /* Return true if non-stop mode is supported. */
285 virtual bool supports_non_stop ();
287 /* Enables async target events. Returns the previous enable
289 virtual bool async (bool enable
);
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
);
295 /* Returns true if the target supports multi-process debugging. */
296 virtual bool supports_multi_process ();
298 /* Returns true if fork events are supported. */
299 virtual bool supports_fork_events ();
301 /* Returns true if vfork events are supported. */
302 virtual bool supports_vfork_events ();
304 /* Returns true if exec events are supported. */
305 virtual bool supports_exec_events ();
307 /* Allows target to re-initialize connection-specific settings. */
308 virtual void handle_new_gdb_connection ();
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
);
314 /* Returns the core given a thread, or -1 if not known. */
315 virtual int core_of_thread (ptid_t ptid
);
317 /* Returns true if the read_loadmap target op is supported. */
318 virtual bool supports_read_loadmap ();
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
);
324 /* Target specific qSupported support. FEATURES is an array of
325 features with COUNT elements. */
326 virtual void process_qsupported (char **features
, int count
);
328 /* Return true if the target supports tracepoints, false otherwise. */
329 virtual bool supports_tracepoints ();
331 /* Read PC from REGCACHE. */
332 virtual CORE_ADDR
read_pc (regcache
*regcache
);
334 /* Write PC to REGCACHE. */
335 virtual void write_pc (regcache
*regcache
, CORE_ADDR pc
);
337 /* Return true if the thread_stopped op is supported. */
338 virtual bool supports_thread_stopped ();
340 /* Return true if THREAD is known to be stopped now. */
341 virtual bool thread_stopped (thread_info
*thread
);
343 /* Return true if the get_tib_address op is supported. */
344 virtual bool supports_get_tib_address ();
346 /* Read Thread Information Block address. */
347 virtual int get_tib_address (ptid_t ptid
, CORE_ADDR
*address
);
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
);
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
359 virtual void unpause_all (bool unfreeze
);
361 /* Stabilize all threads. That is, force them out of jump pads. */
362 virtual void stabilize_threads ();
364 /* Return true if the install_fast_tracepoint_jump_pad op is
366 virtual bool supports_fast_tracepoints ();
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
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
,
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 ();
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 ();
399 /* Returns true if the target supports disabling randomization. */
400 virtual bool supports_disable_randomization ();
402 /* Return true if the qxfer_libraries_svr4 op is supported. */
403 virtual bool supports_qxfer_libraries_svr4 ();
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
);
411 /* Return true if target supports debugging agent. */
412 virtual bool supports_agent ();
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
);
419 /* Disable branch tracing.
420 Returns zero on success, non-zero otherwise. */
421 virtual int disable_btrace (btrace_target_info
*tinfo
);
423 /* Read branch trace data into buffer.
424 Return 0 on success; print an error message into BUFFER and return -1,
426 virtual int read_btrace (btrace_target_info
*tinfo
, buffer
*buf
,
427 enum btrace_read_type type
);
429 /* Read the branch trace configuration into BUFFER.
430 Return 0 on success; print an error message into BUFFER and return -1
432 virtual int read_btrace_conf (const btrace_target_info
*tinfo
,
435 /* Return true if target supports range stepping. */
436 virtual bool supports_range_stepping ();
438 /* Return true if the pid_to_exec_file op is supported. */
439 virtual bool supports_pid_to_exec_file ();
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
);
449 /* Return true if any of the multifs ops is supported. */
450 virtual bool supports_multifs ();
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
);
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
);
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
);
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
);
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;
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
);
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
491 virtual const char *thread_name (ptid_t thread
);
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
,
499 /* Returns true if the target can software single step. */
500 virtual bool supports_software_single_step ();
502 /* Return true if the target supports catch syscall. */
503 virtual bool supports_catch_syscall ();
505 /* Return tdesc index for IPA. */
506 virtual int get_ipa_tdesc_idx ();
509 extern process_stratum_target
*the_target
;
511 void set_target_ops (process_stratum_target
*);
513 #define target_create_inferior(program, program_args) \
514 the_target->pt->create_inferior (program, program_args)
516 #define target_post_create_inferior() \
517 the_target->pt->post_create_inferior ()
519 #define myattach(pid) \
520 the_target->pt->attach (pid)
522 int kill_inferior (process_info
*proc
);
524 #define target_supports_fork_events() \
525 the_target->pt->supports_fork_events ()
527 #define target_supports_vfork_events() \
528 the_target->pt->supports_vfork_events ()
530 #define target_supports_exec_events() \
531 the_target->pt->supports_exec_events ()
533 #define target_handle_new_gdb_connection() \
534 the_target->pt->handle_new_gdb_connection ()
536 #define detach_inferior(proc) \
537 the_target->pt->detach (proc)
539 #define mythread_alive(pid) \
540 the_target->pt->thread_alive (pid)
542 #define fetch_inferior_registers(regcache, regno) \
543 the_target->pt->fetch_registers (regcache, regno)
545 #define store_inferior_registers(regcache, regno) \
546 the_target->pt->store_registers (regcache, regno)
548 #define join_inferior(pid) \
549 the_target->pt->join (pid)
551 #define target_supports_non_stop() \
552 the_target->pt->supports_non_stop ()
554 #define target_async(enable) \
555 the_target->pt->async (enable)
557 #define target_process_qsupported(features, count) \
558 the_target->pt->process_qsupported (features, count)
560 #define target_supports_catch_syscall() \
561 the_target->pt->supports_catch_syscall ()
563 #define target_get_ipa_tdesc_idx() \
564 the_target->pt->get_ipa_tdesc_idx ()
566 #define target_supports_tracepoints() \
567 the_target->pt->supports_tracepoints ()
569 #define target_supports_fast_tracepoints() \
570 the_target->pt->supports_fast_tracepoints ()
572 #define target_get_min_fast_tracepoint_insn_len() \
573 the_target->pt->get_min_fast_tracepoint_insn_len ()
575 #define target_thread_stopped(thread) \
576 the_target->pt->thread_stopped (thread)
578 #define target_pause_all(freeze) \
579 the_target->pt->pause_all (freeze)
581 #define target_unpause_all(unfreeze) \
582 the_target->pt->unpause_all (unfreeze)
584 #define target_stabilize_threads() \
585 the_target->pt->stabilize_threads ()
587 #define target_install_fast_tracepoint_jump_pad(tpoint, tpaddr, \
588 collector, lockaddr, \
591 trampoline, trampoline_size, \
593 jjump_pad_insn_size, \
594 adjusted_insn_addr, \
595 adjusted_insn_addr_end, \
597 the_target->pt->install_fast_tracepoint_jump_pad (tpoint, tpaddr, \
598 collector,lockaddr, \
599 orig_size, jump_entry, \
603 jjump_pad_insn_size, \
604 adjusted_insn_addr, \
605 adjusted_insn_addr_end, \
608 #define target_emit_ops() \
609 the_target->pt->emit_ops ()
611 #define target_supports_disable_randomization() \
612 the_target->pt->supports_disable_randomization ()
614 #define target_supports_agent() \
615 the_target->pt->supports_agent ()
617 static inline struct btrace_target_info
*
618 target_enable_btrace (ptid_t ptid
, const struct btrace_config
*conf
)
620 return the_target
->pt
->enable_btrace (ptid
, conf
);
624 target_disable_btrace (struct btrace_target_info
*tinfo
)
626 return the_target
->pt
->disable_btrace (tinfo
);
630 target_read_btrace (struct btrace_target_info
*tinfo
,
631 struct buffer
*buffer
,
632 enum btrace_read_type type
)
634 return the_target
->pt
->read_btrace (tinfo
, buffer
, type
);
638 target_read_btrace_conf (struct btrace_target_info
*tinfo
,
639 struct buffer
*buffer
)
641 return the_target
->pt
->read_btrace_conf (tinfo
, buffer
);
644 #define target_supports_range_stepping() \
645 the_target->pt->supports_range_stepping ()
647 #define target_supports_stopped_by_sw_breakpoint() \
648 the_target->pt->supports_stopped_by_sw_breakpoint ()
650 #define target_stopped_by_sw_breakpoint() \
651 the_target->pt->stopped_by_sw_breakpoint ()
653 #define target_supports_stopped_by_hw_breakpoint() \
654 the_target->pt->supports_stopped_by_hw_breakpoint ()
656 #define target_supports_hardware_single_step() \
657 the_target->pt->supports_hardware_single_step ()
659 #define target_stopped_by_hw_breakpoint() \
660 the_target->pt->stopped_by_hw_breakpoint ()
662 #define target_breakpoint_kind_from_pc(pcptr) \
663 the_target->pt->breakpoint_kind_from_pc (pcptr)
665 #define target_breakpoint_kind_from_current_state(pcptr) \
666 the_target->pt->breakpoint_kind_from_current_state (pcptr)
668 #define target_supports_software_single_step() \
669 the_target->pt->supports_software_single_step ()
671 ptid_t
mywait (ptid_t ptid
, struct target_waitstatus
*ourstatus
, int options
,
674 /* Prepare to read or write memory from the inferior process. See the
675 corresponding process_stratum_target methods for more details. */
677 int prepare_to_access_memory (void);
678 void done_accessing_memory (void);
680 #define target_core_of_thread(ptid) \
681 the_target->pt->core_of_thread (ptid)
683 #define target_thread_name(ptid) \
684 the_target->pt->thread_name (ptid)
686 #define target_thread_handle(ptid, handle, handle_len) \
687 the_target->pt->thread_handle (ptid, handle, handle_len)
689 int read_inferior_memory (CORE_ADDR memaddr
, unsigned char *myaddr
, int len
);
691 int set_desired_thread ();
693 const char *target_pid_to_str (ptid_t
);
695 #endif /* GDBSERVER_TARGET_H */