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