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