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