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 /* Do additional setup after a new process is created, including
74 exec-wrapper completion. */
75 void (*post_create_inferior
) (void);
77 /* Attach to a running process.
79 PID is the process ID to attach to, specified by the user
82 Returns -1 if attaching is unsupported, 0 on success, and calls
85 int (*attach
) (unsigned long pid
);
87 /* Kill process PROC. Return -1 on failure, and 0 on success. */
89 int (*kill
) (process_info
*proc
);
91 /* Detach from process PROC. Return -1 on failure, and 0 on
94 int (*detach
) (process_info
*proc
);
96 /* The inferior process has died. Do what is right. */
98 void (*mourn
) (struct process_info
*proc
);
100 /* Wait for process PID to exit. */
102 void (*join
) (int pid
);
104 /* Return 1 iff the thread with process ID PID is alive. */
106 int (*thread_alive
) (ptid_t pid
);
108 /* Resume the inferior process. */
110 void (*resume
) (struct thread_resume
*resume_info
, size_t n
);
112 /* Wait for the inferior process or thread to change state. Store
113 status through argument pointer STATUS.
115 PTID = -1 to wait for any pid to do something, PTID(pid,0,0) to
116 wait for any thread of process pid to do something. Return ptid
117 of child, or -1 in case of error; store status through argument
118 pointer STATUS. OPTIONS is a bit set of options defined as
119 TARGET_W* above. If options contains TARGET_WNOHANG and there's
120 no child stop to report, return is
121 null_ptid/TARGET_WAITKIND_IGNORE. */
123 ptid_t (*wait
) (ptid_t ptid
, struct target_waitstatus
*status
, int options
);
125 /* Fetch registers from the inferior process.
127 If REGNO is -1, fetch all registers; otherwise, fetch at least REGNO. */
129 void (*fetch_registers
) (struct regcache
*regcache
, int regno
);
131 /* Store registers to the inferior process.
133 If REGNO is -1, store all registers; otherwise, store at least REGNO. */
135 void (*store_registers
) (struct regcache
*regcache
, int regno
);
137 /* Prepare to read or write memory from the inferior process.
138 Targets use this to do what is necessary to get the state of the
139 inferior such that it is possible to access memory.
141 This should generally only be called from client facing routines,
142 such as gdb_read_memory/gdb_write_memory, or the GDB breakpoint
145 Like `read_memory' and `write_memory' below, returns 0 on success
146 and errno on failure. */
148 int (*prepare_to_access_memory
) (void);
150 /* Undo the effects of prepare_to_access_memory. */
152 void (*done_accessing_memory
) (void);
154 /* Read memory from the inferior process. This should generally be
155 called through read_inferior_memory, which handles breakpoint shadowing.
157 Read LEN bytes at MEMADDR into a buffer at MYADDR.
159 Returns 0 on success and errno on failure. */
161 int (*read_memory
) (CORE_ADDR memaddr
, unsigned char *myaddr
, int len
);
163 /* Write memory to the inferior process. This should generally be
164 called through target_write_memory, which handles breakpoint shadowing.
166 Write LEN bytes from the buffer at MYADDR to MEMADDR.
168 Returns 0 on success and errno on failure. */
170 int (*write_memory
) (CORE_ADDR memaddr
, const unsigned char *myaddr
,
173 /* Query GDB for the values of any symbols we're interested in.
174 This function is called whenever we receive a "qSymbols::"
175 query, which corresponds to every time more symbols (might)
176 become available. NULL if we aren't interested in any
179 void (*look_up_symbols
) (void);
181 /* Send an interrupt request to the inferior process,
182 however is appropriate. */
184 void (*request_interrupt
) (void);
186 /* Read auxiliary vector data from the inferior process.
188 Read LEN bytes at OFFSET into a buffer at MYADDR. */
190 int (*read_auxv
) (CORE_ADDR offset
, unsigned char *myaddr
,
193 /* Returns true if GDB Z breakpoint type TYPE is supported, false
194 otherwise. The type is coded as follows:
195 '0' - software-breakpoint
196 '1' - hardware-breakpoint
197 '2' - write watchpoint
198 '3' - read watchpoint
199 '4' - access watchpoint
201 int (*supports_z_point_type
) (char z_type
);
203 /* Insert and remove a break or watchpoint.
204 Returns 0 on success, -1 on failure and 1 on unsupported. */
206 int (*insert_point
) (enum raw_bkpt_type type
, CORE_ADDR addr
,
207 int size
, struct raw_breakpoint
*bp
);
208 int (*remove_point
) (enum raw_bkpt_type type
, CORE_ADDR addr
,
209 int size
, struct raw_breakpoint
*bp
);
211 /* Returns 1 if the target stopped because it executed a software
212 breakpoint instruction, 0 otherwise. */
213 int (*stopped_by_sw_breakpoint
) (void);
215 /* Returns true if the target knows whether a trap was caused by a
216 SW breakpoint triggering. */
217 int (*supports_stopped_by_sw_breakpoint
) (void);
219 /* Returns 1 if the target stopped for a hardware breakpoint. */
220 int (*stopped_by_hw_breakpoint
) (void);
222 /* Returns true if the target knows whether a trap was caused by a
223 HW breakpoint triggering. */
224 int (*supports_stopped_by_hw_breakpoint
) (void);
226 /* Returns true if the target can do hardware single step. */
227 int (*supports_hardware_single_step
) (void);
229 /* Returns 1 if target was stopped due to a watchpoint hit, 0 otherwise. */
231 int (*stopped_by_watchpoint
) (void);
233 /* Returns the address associated with the watchpoint that hit, if any;
234 returns 0 otherwise. */
236 CORE_ADDR (*stopped_data_address
) (void);
238 /* Reports the text, data offsets of the executable. This is
239 needed for uclinux where the executable is relocated during load
242 int (*read_offsets
) (CORE_ADDR
*text
, CORE_ADDR
*data
);
244 /* Fetch the address associated with a specific thread local storage
245 area, determined by the specified THREAD, OFFSET, and LOAD_MODULE.
246 Stores it in *ADDRESS and returns zero on success; otherwise returns
247 an error code. A return value of -1 means this system does not
248 support the operation. */
250 int (*get_tls_address
) (struct thread_info
*thread
, CORE_ADDR offset
,
251 CORE_ADDR load_module
, CORE_ADDR
*address
);
253 /* Fill BUF with an hostio error packet representing the last hostio
255 void (*hostio_last_error
) (char *buf
);
257 /* Read/Write OS data using qXfer packets. */
258 int (*qxfer_osdata
) (const char *annex
, unsigned char *readbuf
,
259 unsigned const char *writebuf
, CORE_ADDR offset
,
262 /* Read/Write extra signal info. */
263 int (*qxfer_siginfo
) (const char *annex
, unsigned char *readbuf
,
264 unsigned const char *writebuf
,
265 CORE_ADDR offset
, int len
);
267 int (*supports_non_stop
) (void);
269 /* Enables async target events. Returns the previous enable
271 int (*async
) (int enable
);
273 /* Switch to non-stop (1) or all-stop (0) mode. Return 0 on
274 success, -1 otherwise. */
275 int (*start_non_stop
) (int);
277 /* Returns true if the target supports multi-process debugging. */
278 int (*supports_multi_process
) (void);
280 /* Returns true if fork events are supported. */
281 int (*supports_fork_events
) (void);
283 /* Returns true if vfork events are supported. */
284 int (*supports_vfork_events
) (void);
286 /* Returns true if exec events are supported. */
287 int (*supports_exec_events
) (void);
289 /* Allows target to re-initialize connection-specific settings. */
290 void (*handle_new_gdb_connection
) (void);
292 /* If not NULL, target-specific routine to process monitor command.
293 Returns 1 if handled, or 0 to perform default processing. */
294 int (*handle_monitor_command
) (char *);
296 /* Returns the core given a thread, or -1 if not known. */
297 int (*core_of_thread
) (ptid_t
);
299 /* Read loadmaps. Read LEN bytes at OFFSET into a buffer at MYADDR. */
300 int (*read_loadmap
) (const char *annex
, CORE_ADDR offset
,
301 unsigned char *myaddr
, unsigned int len
);
303 /* Target specific qSupported support. FEATURES is an array of
304 features with COUNT elements. */
305 void (*process_qsupported
) (char **features
, int count
);
307 /* Return 1 if the target supports tracepoints, 0 (or leave the
308 callback NULL) otherwise. */
309 int (*supports_tracepoints
) (void);
311 /* Read PC from REGCACHE. */
312 CORE_ADDR (*read_pc
) (struct regcache
*regcache
);
314 /* Write PC to REGCACHE. */
315 void (*write_pc
) (struct regcache
*regcache
, CORE_ADDR pc
);
317 /* Return true if THREAD is known to be stopped now. */
318 int (*thread_stopped
) (struct thread_info
*thread
);
320 /* Read Thread Information Block address. */
321 int (*get_tib_address
) (ptid_t ptid
, CORE_ADDR
*address
);
323 /* Pause all threads. If FREEZE, arrange for any resume attempt to
324 be ignored until an unpause_all call unfreezes threads again.
325 There can be nested calls to pause_all, so a freeze counter
326 should be maintained. */
327 void (*pause_all
) (int freeze
);
329 /* Unpause all threads. Threads that hadn't been resumed by the
330 client should be left stopped. Basically a pause/unpause call
331 pair should not end up resuming threads that were stopped before
333 void (*unpause_all
) (int unfreeze
);
335 /* Stabilize all threads. That is, force them out of jump pads. */
336 void (*stabilize_threads
) (void);
338 /* Install a fast tracepoint jump pad. TPOINT is the address of the
339 tracepoint internal object as used by the IPA agent. TPADDR is
340 the address of tracepoint. COLLECTOR is address of the function
341 the jump pad redirects to. LOCKADDR is the address of the jump
342 pad lock object. ORIG_SIZE is the size in bytes of the
343 instruction at TPADDR. JUMP_ENTRY points to the address of the
344 jump pad entry, and on return holds the address past the end of
345 the created jump pad. If a trampoline is created by the function,
346 then TRAMPOLINE and TRAMPOLINE_SIZE return the address and size of
347 the trampoline, else they remain unchanged. JJUMP_PAD_INSN is a
348 buffer containing a copy of the instruction at TPADDR.
349 ADJUST_INSN_ADDR and ADJUST_INSN_ADDR_END are output parameters that
350 return the address range where the instruction at TPADDR was relocated
351 to. If an error occurs, the ERR may be used to pass on an error
353 int (*install_fast_tracepoint_jump_pad
) (CORE_ADDR tpoint
, CORE_ADDR tpaddr
,
357 CORE_ADDR
*jump_entry
,
358 CORE_ADDR
*trampoline
,
359 ULONGEST
*trampoline_size
,
360 unsigned char *jjump_pad_insn
,
361 ULONGEST
*jjump_pad_insn_size
,
362 CORE_ADDR
*adjusted_insn_addr
,
363 CORE_ADDR
*adjusted_insn_addr_end
,
366 /* Return the bytecode operations vector for the current inferior.
367 Returns NULL if bytecode compilation is not supported. */
368 struct emit_ops
*(*emit_ops
) (void);
370 /* Returns true if the target supports disabling randomization. */
371 int (*supports_disable_randomization
) (void);
373 /* Return the minimum length of an instruction that can be safely overwritten
374 for use as a fast tracepoint. */
375 int (*get_min_fast_tracepoint_insn_len
) (void);
377 /* Read solib info on SVR4 platforms. */
378 int (*qxfer_libraries_svr4
) (const char *annex
, unsigned char *readbuf
,
379 unsigned const char *writebuf
,
380 CORE_ADDR offset
, int len
);
382 /* Return true if target supports debugging agent. */
383 int (*supports_agent
) (void);
385 /* Enable branch tracing for PTID based on CONF and allocate a branch trace
386 target information struct for reading and for disabling branch trace. */
387 struct btrace_target_info
*(*enable_btrace
)
388 (ptid_t ptid
, const struct btrace_config
*conf
);
390 /* Disable branch tracing.
391 Returns zero on success, non-zero otherwise. */
392 int (*disable_btrace
) (struct btrace_target_info
*tinfo
);
394 /* Read branch trace data into buffer.
395 Return 0 on success; print an error message into BUFFER and return -1,
397 int (*read_btrace
) (struct btrace_target_info
*, struct buffer
*,
398 enum btrace_read_type type
);
400 /* Read the branch trace configuration into BUFFER.
401 Return 0 on success; print an error message into BUFFER and return -1
403 int (*read_btrace_conf
) (const struct btrace_target_info
*, struct buffer
*);
405 /* Return true if target supports range stepping. */
406 int (*supports_range_stepping
) (void);
408 /* Return the full absolute name of the executable file that was
409 run to create the process PID. If the executable file cannot
410 be determined, NULL is returned. Otherwise, a pointer to a
411 character string containing the pathname is returned. This
412 string should be copied into a buffer by the client if the string
413 will not be immediately used, or if it must persist. */
414 char *(*pid_to_exec_file
) (int pid
);
416 /* Multiple-filesystem-aware open. Like open(2), but operating in
417 the filesystem as it appears to process PID. Systems where all
418 processes share a common filesystem should set this to NULL.
419 If NULL, the caller should fall back to open(2). */
420 int (*multifs_open
) (int pid
, const char *filename
,
421 int flags
, mode_t mode
);
423 /* Multiple-filesystem-aware unlink. Like unlink(2), but operates
424 in the filesystem as it appears to process PID. Systems where
425 all processes share a common filesystem should set this to NULL.
426 If NULL, the caller should fall back to unlink(2). */
427 int (*multifs_unlink
) (int pid
, const char *filename
);
429 /* Multiple-filesystem-aware readlink. Like readlink(2), but
430 operating in the filesystem as it appears to process PID.
431 Systems where all processes share a common filesystem should
432 set this to NULL. If NULL, the caller should fall back to
434 ssize_t (*multifs_readlink
) (int pid
, const char *filename
,
435 char *buf
, size_t bufsiz
);
437 /* Return the breakpoint kind for this target based on PC. The PCPTR is
438 adjusted to the real memory location in case a flag (e.g., the Thumb bit on
439 ARM) was present in the PC. */
440 int (*breakpoint_kind_from_pc
) (CORE_ADDR
*pcptr
);
442 /* Return the software breakpoint from KIND. KIND can have target
443 specific meaning like the Z0 kind parameter.
444 SIZE is set to the software breakpoint's length in memory. */
445 const gdb_byte
*(*sw_breakpoint_from_kind
) (int kind
, int *size
);
447 /* Return the thread's name, or NULL if the target is unable to determine it.
448 The returned value must not be freed by the caller. */
449 const char *(*thread_name
) (ptid_t thread
);
451 /* Return the breakpoint kind for this target based on the current
452 processor state (e.g. the current instruction mode on ARM) and the
453 PC. The PCPTR is adjusted to the real memory location in case a flag
454 (e.g., the Thumb bit on ARM) is present in the PC. */
455 int (*breakpoint_kind_from_current_state
) (CORE_ADDR
*pcptr
);
457 /* Returns true if the target can software single step. */
458 int (*supports_software_single_step
) (void);
460 /* Return 1 if the target supports catch syscall, 0 (or leave the
461 callback NULL) otherwise. */
462 int (*supports_catch_syscall
) (void);
464 /* Return tdesc index for IPA. */
465 int (*get_ipa_tdesc_idx
) (void);
467 /* Thread ID to (numeric) thread handle: Return true on success and
468 false for failure. Return pointer to thread handle via HANDLE
469 and the handle's length via HANDLE_LEN. */
470 bool (*thread_handle
) (ptid_t ptid
, gdb_byte
**handle
, int *handle_len
);
472 /* The object that will gradually replace this struct. */
480 virtual ~process_target () = default;
482 /* Start a new process.
484 PROGRAM is a path to the program to execute.
485 PROGRAM_ARGS is a standard NULL-terminated array of arguments,
486 to be passed to the inferior as ``argv'' (along with PROGRAM).
488 Returns the new PID on success, -1 on failure. Registers the new
489 process with the process list. */
490 virtual int create_inferior (const char *program
,
491 const std::vector
<char *> &program_args
) = 0;
494 extern process_stratum_target
*the_target
;
496 void set_target_ops (process_stratum_target
*);
498 #define target_create_inferior(program, program_args) \
499 the_target->pt->create_inferior (program, program_args)
501 #define target_post_create_inferior() \
504 if (the_target->post_create_inferior != NULL) \
505 (*the_target->post_create_inferior) (); \
508 #define myattach(pid) \
509 (*the_target->attach) (pid)
511 int kill_inferior (process_info
*proc
);
513 #define target_supports_fork_events() \
514 (the_target->supports_fork_events ? \
515 (*the_target->supports_fork_events) () : 0)
517 #define target_supports_vfork_events() \
518 (the_target->supports_vfork_events ? \
519 (*the_target->supports_vfork_events) () : 0)
521 #define target_supports_exec_events() \
522 (the_target->supports_exec_events ? \
523 (*the_target->supports_exec_events) () : 0)
525 #define target_handle_new_gdb_connection() \
528 if (the_target->handle_new_gdb_connection != NULL) \
529 (*the_target->handle_new_gdb_connection) (); \
532 #define detach_inferior(proc) \
533 (*the_target->detach) (proc)
535 #define mythread_alive(pid) \
536 (*the_target->thread_alive) (pid)
538 #define fetch_inferior_registers(regcache, regno) \
539 (*the_target->fetch_registers) (regcache, regno)
541 #define store_inferior_registers(regcache, regno) \
542 (*the_target->store_registers) (regcache, regno)
544 #define join_inferior(pid) \
545 (*the_target->join) (pid)
547 #define target_supports_non_stop() \
548 (the_target->supports_non_stop ? (*the_target->supports_non_stop ) () : 0)
550 #define target_async(enable) \
551 (the_target->async ? (*the_target->async) (enable) : 0)
553 #define target_process_qsupported(features, count) \
556 if (the_target->process_qsupported) \
557 the_target->process_qsupported (features, count); \
560 #define target_supports_catch_syscall() \
561 (the_target->supports_catch_syscall ? \
562 (*the_target->supports_catch_syscall) () : 0)
564 #define target_get_ipa_tdesc_idx() \
565 (the_target->get_ipa_tdesc_idx \
566 ? (*the_target->get_ipa_tdesc_idx) () : 0)
568 #define target_supports_tracepoints() \
569 (the_target->supports_tracepoints \
570 ? (*the_target->supports_tracepoints) () : 0)
572 #define target_supports_fast_tracepoints() \
573 (the_target->install_fast_tracepoint_jump_pad != NULL)
575 #define target_get_min_fast_tracepoint_insn_len() \
576 (the_target->get_min_fast_tracepoint_insn_len \
577 ? (*the_target->get_min_fast_tracepoint_insn_len) () : 0)
579 #define thread_stopped(thread) \
580 (*the_target->thread_stopped) (thread)
582 #define pause_all(freeze) \
585 if (the_target->pause_all) \
586 (*the_target->pause_all) (freeze); \
589 #define unpause_all(unfreeze) \
592 if (the_target->unpause_all) \
593 (*the_target->unpause_all) (unfreeze); \
596 #define stabilize_threads() \
599 if (the_target->stabilize_threads) \
600 (*the_target->stabilize_threads) (); \
603 #define install_fast_tracepoint_jump_pad(tpoint, tpaddr, \
604 collector, lockaddr, \
607 trampoline, trampoline_size, \
609 jjump_pad_insn_size, \
610 adjusted_insn_addr, \
611 adjusted_insn_addr_end, \
613 (*the_target->install_fast_tracepoint_jump_pad) (tpoint, tpaddr, \
614 collector,lockaddr, \
615 orig_size, jump_entry, \
619 jjump_pad_insn_size, \
620 adjusted_insn_addr, \
621 adjusted_insn_addr_end, \
624 #define target_emit_ops() \
625 (the_target->emit_ops ? (*the_target->emit_ops) () : NULL)
627 #define target_supports_disable_randomization() \
628 (the_target->supports_disable_randomization ? \
629 (*the_target->supports_disable_randomization) () : 0)
631 #define target_supports_agent() \
632 (the_target->supports_agent ? \
633 (*the_target->supports_agent) () : 0)
635 static inline struct btrace_target_info
*
636 target_enable_btrace (ptid_t ptid
, const struct btrace_config
*conf
)
638 if (the_target
->enable_btrace
== nullptr)
639 error (_("Target does not support branch tracing."));
641 return (*the_target
->enable_btrace
) (ptid
, conf
);
645 target_disable_btrace (struct btrace_target_info
*tinfo
)
647 if (the_target
->disable_btrace
== nullptr)
648 error (_("Target does not support branch tracing."));
650 return (*the_target
->disable_btrace
) (tinfo
);
654 target_read_btrace (struct btrace_target_info
*tinfo
,
655 struct buffer
*buffer
,
656 enum btrace_read_type type
)
658 if (the_target
->read_btrace
== nullptr)
659 error (_("Target does not support branch tracing."));
661 return (*the_target
->read_btrace
) (tinfo
, buffer
, type
);
665 target_read_btrace_conf (struct btrace_target_info
*tinfo
,
666 struct buffer
*buffer
)
668 if (the_target
->read_btrace_conf
== nullptr)
669 error (_("Target does not support branch tracing."));
671 return (*the_target
->read_btrace_conf
) (tinfo
, buffer
);
674 #define target_supports_range_stepping() \
675 (the_target->supports_range_stepping ? \
676 (*the_target->supports_range_stepping) () : 0)
678 #define target_supports_stopped_by_sw_breakpoint() \
679 (the_target->supports_stopped_by_sw_breakpoint ? \
680 (*the_target->supports_stopped_by_sw_breakpoint) () : 0)
682 #define target_stopped_by_sw_breakpoint() \
683 (the_target->stopped_by_sw_breakpoint ? \
684 (*the_target->stopped_by_sw_breakpoint) () : 0)
686 #define target_supports_stopped_by_hw_breakpoint() \
687 (the_target->supports_stopped_by_hw_breakpoint ? \
688 (*the_target->supports_stopped_by_hw_breakpoint) () : 0)
690 #define target_supports_hardware_single_step() \
691 (the_target->supports_hardware_single_step ? \
692 (*the_target->supports_hardware_single_step) () : 0)
694 #define target_stopped_by_hw_breakpoint() \
695 (the_target->stopped_by_hw_breakpoint ? \
696 (*the_target->stopped_by_hw_breakpoint) () : 0)
698 #define target_breakpoint_kind_from_pc(pcptr) \
699 (the_target->breakpoint_kind_from_pc \
700 ? (*the_target->breakpoint_kind_from_pc) (pcptr) \
701 : default_breakpoint_kind_from_pc (pcptr))
703 #define target_breakpoint_kind_from_current_state(pcptr) \
704 (the_target->breakpoint_kind_from_current_state \
705 ? (*the_target->breakpoint_kind_from_current_state) (pcptr) \
706 : target_breakpoint_kind_from_pc (pcptr))
708 #define target_supports_software_single_step() \
709 (the_target->supports_software_single_step ? \
710 (*the_target->supports_software_single_step) () : 0)
712 /* Start non-stop mode, returns 0 on success, -1 on failure. */
714 int start_non_stop (int nonstop
);
716 ptid_t
mywait (ptid_t ptid
, struct target_waitstatus
*ourstatus
, int options
,
719 /* Prepare to read or write memory from the inferior process. See the
720 corresponding process_stratum_target methods for more details. */
722 int prepare_to_access_memory (void);
723 void done_accessing_memory (void);
725 #define target_core_of_thread(ptid) \
726 (the_target->core_of_thread ? (*the_target->core_of_thread) (ptid) \
729 #define target_thread_name(ptid) \
730 (the_target->thread_name ? (*the_target->thread_name) (ptid) \
733 #define target_thread_handle(ptid, handle, handle_len) \
734 (the_target->thread_handle ? (*the_target->thread_handle) \
735 (ptid, handle, handle_len) \
738 int read_inferior_memory (CORE_ADDR memaddr
, unsigned char *myaddr
, int len
);
740 int set_desired_thread ();
742 const char *target_pid_to_str (ptid_t
);
744 int target_can_do_hardware_single_step (void);
746 int default_breakpoint_kind_from_pc (CORE_ADDR
*pcptr
);
748 #endif /* GDBSERVER_TARGET_H */