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 /* Install a fast tracepoint jump pad. TPOINT is the address of the
74 tracepoint internal object as used by the IPA agent. TPADDR is
75 the address of tracepoint. COLLECTOR is address of the function
76 the jump pad redirects to. LOCKADDR is the address of the jump
77 pad lock object. ORIG_SIZE is the size in bytes of the
78 instruction at TPADDR. JUMP_ENTRY points to the address of the
79 jump pad entry, and on return holds the address past the end of
80 the created jump pad. If a trampoline is created by the function,
81 then TRAMPOLINE and TRAMPOLINE_SIZE return the address and size of
82 the trampoline, else they remain unchanged. JJUMP_PAD_INSN is a
83 buffer containing a copy of the instruction at TPADDR.
84 ADJUST_INSN_ADDR and ADJUST_INSN_ADDR_END are output parameters that
85 return the address range where the instruction at TPADDR was relocated
86 to. If an error occurs, the ERR may be used to pass on an error
88 int (*install_fast_tracepoint_jump_pad
) (CORE_ADDR tpoint
, CORE_ADDR tpaddr
,
92 CORE_ADDR
*jump_entry
,
93 CORE_ADDR
*trampoline
,
94 ULONGEST
*trampoline_size
,
95 unsigned char *jjump_pad_insn
,
96 ULONGEST
*jjump_pad_insn_size
,
97 CORE_ADDR
*adjusted_insn_addr
,
98 CORE_ADDR
*adjusted_insn_addr_end
,
101 /* Return the bytecode operations vector for the current inferior.
102 Returns NULL if bytecode compilation is not supported. */
103 struct emit_ops
*(*emit_ops
) (void);
105 /* Returns true if the target supports disabling randomization. */
106 int (*supports_disable_randomization
) (void);
108 /* Return the minimum length of an instruction that can be safely overwritten
109 for use as a fast tracepoint. */
110 int (*get_min_fast_tracepoint_insn_len
) (void);
112 /* Read solib info on SVR4 platforms. */
113 int (*qxfer_libraries_svr4
) (const char *annex
, unsigned char *readbuf
,
114 unsigned const char *writebuf
,
115 CORE_ADDR offset
, int len
);
117 /* Return true if target supports debugging agent. */
118 int (*supports_agent
) (void);
120 /* Enable branch tracing for PTID based on CONF and allocate a branch trace
121 target information struct for reading and for disabling branch trace. */
122 struct btrace_target_info
*(*enable_btrace
)
123 (ptid_t ptid
, const struct btrace_config
*conf
);
125 /* Disable branch tracing.
126 Returns zero on success, non-zero otherwise. */
127 int (*disable_btrace
) (struct btrace_target_info
*tinfo
);
129 /* Read branch trace data into buffer.
130 Return 0 on success; print an error message into BUFFER and return -1,
132 int (*read_btrace
) (struct btrace_target_info
*, struct buffer
*,
133 enum btrace_read_type type
);
135 /* Read the branch trace configuration into BUFFER.
136 Return 0 on success; print an error message into BUFFER and return -1
138 int (*read_btrace_conf
) (const struct btrace_target_info
*, struct buffer
*);
140 /* Return true if target supports range stepping. */
141 int (*supports_range_stepping
) (void);
143 /* Return the full absolute name of the executable file that was
144 run to create the process PID. If the executable file cannot
145 be determined, NULL is returned. Otherwise, a pointer to a
146 character string containing the pathname is returned. This
147 string should be copied into a buffer by the client if the string
148 will not be immediately used, or if it must persist. */
149 char *(*pid_to_exec_file
) (int pid
);
151 /* Multiple-filesystem-aware open. Like open(2), but operating in
152 the filesystem as it appears to process PID. Systems where all
153 processes share a common filesystem should set this to NULL.
154 If NULL, the caller should fall back to open(2). */
155 int (*multifs_open
) (int pid
, const char *filename
,
156 int flags
, mode_t mode
);
158 /* Multiple-filesystem-aware unlink. Like unlink(2), but operates
159 in the filesystem as it appears to process PID. Systems where
160 all processes share a common filesystem should set this to NULL.
161 If NULL, the caller should fall back to unlink(2). */
162 int (*multifs_unlink
) (int pid
, const char *filename
);
164 /* Multiple-filesystem-aware readlink. Like readlink(2), but
165 operating in the filesystem as it appears to process PID.
166 Systems where all processes share a common filesystem should
167 set this to NULL. If NULL, the caller should fall back to
169 ssize_t (*multifs_readlink
) (int pid
, const char *filename
,
170 char *buf
, size_t bufsiz
);
172 /* Return the breakpoint kind for this target based on PC. The PCPTR is
173 adjusted to the real memory location in case a flag (e.g., the Thumb bit on
174 ARM) was present in the PC. */
175 int (*breakpoint_kind_from_pc
) (CORE_ADDR
*pcptr
);
177 /* Return the software breakpoint from KIND. KIND can have target
178 specific meaning like the Z0 kind parameter.
179 SIZE is set to the software breakpoint's length in memory. */
180 const gdb_byte
*(*sw_breakpoint_from_kind
) (int kind
, int *size
);
182 /* Return the thread's name, or NULL if the target is unable to determine it.
183 The returned value must not be freed by the caller. */
184 const char *(*thread_name
) (ptid_t thread
);
186 /* Return the breakpoint kind for this target based on the current
187 processor state (e.g. the current instruction mode on ARM) and the
188 PC. The PCPTR is adjusted to the real memory location in case a flag
189 (e.g., the Thumb bit on ARM) is present in the PC. */
190 int (*breakpoint_kind_from_current_state
) (CORE_ADDR
*pcptr
);
192 /* Returns true if the target can software single step. */
193 int (*supports_software_single_step
) (void);
195 /* Return 1 if the target supports catch syscall, 0 (or leave the
196 callback NULL) otherwise. */
197 int (*supports_catch_syscall
) (void);
199 /* Return tdesc index for IPA. */
200 int (*get_ipa_tdesc_idx
) (void);
202 /* Thread ID to (numeric) thread handle: Return true on success and
203 false for failure. Return pointer to thread handle via HANDLE
204 and the handle's length via HANDLE_LEN. */
205 bool (*thread_handle
) (ptid_t ptid
, gdb_byte
**handle
, int *handle_len
);
207 /* The object that will gradually replace this struct. */
215 virtual ~process_target () = default;
217 /* Start a new process.
219 PROGRAM is a path to the program to execute.
220 PROGRAM_ARGS is a standard NULL-terminated array of arguments,
221 to be passed to the inferior as ``argv'' (along with PROGRAM).
223 Returns the new PID on success, -1 on failure. Registers the new
224 process with the process list. */
225 virtual int create_inferior (const char *program
,
226 const std::vector
<char *> &program_args
) = 0;
228 /* Do additional setup after a new process is created, including
229 exec-wrapper completion. */
230 virtual void post_create_inferior ();
232 /* Attach to a running process.
234 PID is the process ID to attach to, specified by the user
237 Returns -1 if attaching is unsupported, 0 on success, and calls
238 error() otherwise. */
239 virtual int attach (unsigned long pid
) = 0;
241 /* Kill process PROC. Return -1 on failure, and 0 on success. */
242 virtual int kill (process_info
*proc
) = 0;
244 /* Detach from process PROC. Return -1 on failure, and 0 on
246 virtual int detach (process_info
*proc
) = 0;
248 /* The inferior process has died. Do what is right. */
249 virtual void mourn (process_info
*proc
) = 0;
251 /* Wait for process PID to exit. */
252 virtual void join (int pid
) = 0;
254 /* Return true iff the thread with process ID PID is alive. */
255 virtual bool thread_alive (ptid_t pid
) = 0;
257 /* Resume the inferior process. */
258 virtual void resume (thread_resume
*resume_info
, size_t n
) = 0;
260 /* Wait for the inferior process or thread to change state. Store
261 status through argument pointer STATUS.
263 PTID = -1 to wait for any pid to do something, PTID(pid,0,0) to
264 wait for any thread of process pid to do something. Return ptid
265 of child, or -1 in case of error; store status through argument
266 pointer STATUS. OPTIONS is a bit set of options defined as
267 TARGET_W* above. If options contains TARGET_WNOHANG and there's
268 no child stop to report, return is
269 null_ptid/TARGET_WAITKIND_IGNORE. */
270 virtual ptid_t
wait (ptid_t ptid
, target_waitstatus
*status
,
273 /* Fetch registers from the inferior process.
275 If REGNO is -1, fetch all registers; otherwise, fetch at least REGNO. */
276 virtual void fetch_registers (regcache
*regcache
, int regno
) = 0;
278 /* Store registers to the inferior process.
280 If REGNO is -1, store all registers; otherwise, store at least REGNO. */
281 virtual void store_registers (regcache
*regcache
, int regno
) = 0;
283 /* Prepare to read or write memory from the inferior process.
284 Targets use this to do what is necessary to get the state of the
285 inferior such that it is possible to access memory.
287 This should generally only be called from client facing routines,
288 such as gdb_read_memory/gdb_write_memory, or the GDB breakpoint
291 Like `read_memory' and `write_memory' below, returns 0 on success
292 and errno on failure. */
293 virtual int prepare_to_access_memory ();
295 /* Undo the effects of prepare_to_access_memory. */
296 virtual void done_accessing_memory ();
298 /* Read memory from the inferior process. This should generally be
299 called through read_inferior_memory, which handles breakpoint shadowing.
301 Read LEN bytes at MEMADDR into a buffer at MYADDR.
303 Returns 0 on success and errno on failure. */
304 virtual int read_memory (CORE_ADDR memaddr
, unsigned char *myaddr
,
307 /* Write memory to the inferior process. This should generally be
308 called through target_write_memory, which handles breakpoint shadowing.
310 Write LEN bytes from the buffer at MYADDR to MEMADDR.
312 Returns 0 on success and errno on failure. */
313 virtual int write_memory (CORE_ADDR memaddr
, const unsigned char *myaddr
,
316 /* Query GDB for the values of any symbols we're interested in.
317 This function is called whenever we receive a "qSymbols::"
318 query, which corresponds to every time more symbols (might)
320 virtual void look_up_symbols ();
322 /* Send an interrupt request to the inferior process,
323 however is appropriate. */
324 virtual void request_interrupt () = 0;
326 /* Return true if the read_auxv target op is supported. */
327 virtual bool supports_read_auxv ();
329 /* Read auxiliary vector data from the inferior process.
331 Read LEN bytes at OFFSET into a buffer at MYADDR. */
332 virtual int read_auxv (CORE_ADDR offset
, unsigned char *myaddr
,
335 /* Returns true if GDB Z breakpoint type TYPE is supported, false
336 otherwise. The type is coded as follows:
337 '0' - software-breakpoint
338 '1' - hardware-breakpoint
339 '2' - write watchpoint
340 '3' - read watchpoint
341 '4' - access watchpoint
343 virtual bool supports_z_point_type (char z_type
);
345 /* Insert and remove a break or watchpoint.
346 Returns 0 on success, -1 on failure and 1 on unsupported. */
347 virtual int insert_point (enum raw_bkpt_type type
, CORE_ADDR addr
,
348 int size
, raw_breakpoint
*bp
);
350 virtual int remove_point (enum raw_bkpt_type type
, CORE_ADDR addr
,
351 int size
, raw_breakpoint
*bp
);
353 /* Returns true if the target stopped because it executed a software
354 breakpoint instruction, false otherwise. */
355 virtual bool stopped_by_sw_breakpoint ();
357 /* Returns true if the target knows whether a trap was caused by a
358 SW breakpoint triggering. */
359 virtual bool supports_stopped_by_sw_breakpoint ();
361 /* Returns true if the target stopped for a hardware breakpoint. */
362 virtual bool stopped_by_hw_breakpoint ();
364 /* Returns true if the target knows whether a trap was caused by a
365 HW breakpoint triggering. */
366 virtual bool supports_stopped_by_hw_breakpoint ();
368 /* Returns true if the target can do hardware single step. */
369 virtual bool supports_hardware_single_step ();
371 /* Returns true if target was stopped due to a watchpoint hit, false
373 virtual bool stopped_by_watchpoint ();
375 /* Returns the address associated with the watchpoint that hit, if any;
376 returns 0 otherwise. */
377 virtual CORE_ADDR
stopped_data_address ();
379 /* Return true if the read_offsets target op is supported. */
380 virtual bool supports_read_offsets ();
382 /* Reports the text, data offsets of the executable. This is
383 needed for uclinux where the executable is relocated during load
385 virtual int read_offsets (CORE_ADDR
*text
, CORE_ADDR
*data
);
387 /* Return true if the get_tls_address target op is supported. */
388 virtual bool supports_get_tls_address ();
390 /* Fetch the address associated with a specific thread local storage
391 area, determined by the specified THREAD, OFFSET, and LOAD_MODULE.
392 Stores it in *ADDRESS and returns zero on success; otherwise returns
393 an error code. A return value of -1 means this system does not
394 support the operation. */
395 virtual int get_tls_address (thread_info
*thread
, CORE_ADDR offset
,
396 CORE_ADDR load_module
, CORE_ADDR
*address
);
398 /* Fill BUF with an hostio error packet representing the last hostio
400 virtual void hostio_last_error (char *buf
);
402 /* Return true if the qxfer_osdata target op is supported. */
403 virtual bool supports_qxfer_osdata ();
405 /* Read/Write OS data using qXfer packets. */
406 virtual int qxfer_osdata (const char *annex
, unsigned char *readbuf
,
407 unsigned const char *writebuf
,
408 CORE_ADDR offset
, int len
);
410 /* Return true if the qxfer_siginfo target op is supported. */
411 virtual bool supports_qxfer_siginfo ();
413 /* Read/Write extra signal info. */
414 virtual int qxfer_siginfo (const char *annex
, unsigned char *readbuf
,
415 unsigned const char *writebuf
,
416 CORE_ADDR offset
, int len
);
418 /* Return true if non-stop mode is supported. */
419 virtual bool supports_non_stop ();
421 /* Enables async target events. Returns the previous enable
423 virtual bool async (bool enable
);
425 /* Switch to non-stop (ENABLE == true) or all-stop (ENABLE == false)
426 mode. Return 0 on success, -1 otherwise. */
427 virtual int start_non_stop (bool enable
);
429 /* Returns true if the target supports multi-process debugging. */
430 virtual bool supports_multi_process ();
432 /* Returns true if fork events are supported. */
433 virtual bool supports_fork_events ();
435 /* Returns true if vfork events are supported. */
436 virtual bool supports_vfork_events ();
438 /* Returns true if exec events are supported. */
439 virtual bool supports_exec_events ();
441 /* Allows target to re-initialize connection-specific settings. */
442 virtual void handle_new_gdb_connection ();
444 /* The target-specific routine to process monitor command.
445 Returns 1 if handled, or 0 to perform default processing. */
446 virtual int handle_monitor_command (char *mon
);
448 /* Returns the core given a thread, or -1 if not known. */
449 virtual int core_of_thread (ptid_t ptid
);
451 /* Returns true if the read_loadmap target op is supported. */
452 virtual bool supports_read_loadmap ();
454 /* Read loadmaps. Read LEN bytes at OFFSET into a buffer at MYADDR. */
455 virtual int read_loadmap (const char *annex
, CORE_ADDR offset
,
456 unsigned char *myaddr
, unsigned int len
);
458 /* Target specific qSupported support. FEATURES is an array of
459 features with COUNT elements. */
460 virtual void process_qsupported (char **features
, int count
);
462 /* Return true if the target supports tracepoints, false otherwise. */
463 virtual bool supports_tracepoints ();
465 /* Read PC from REGCACHE. */
466 virtual CORE_ADDR
read_pc (regcache
*regcache
);
468 /* Write PC to REGCACHE. */
469 virtual void write_pc (regcache
*regcache
, CORE_ADDR pc
);
471 /* Return true if the thread_stopped op is supported. */
472 virtual bool supports_thread_stopped ();
474 /* Return true if THREAD is known to be stopped now. */
475 virtual bool thread_stopped (thread_info
*thread
);
477 /* Return true if the get_tib_address op is supported. */
478 virtual bool supports_get_tib_address ();
480 /* Read Thread Information Block address. */
481 virtual int get_tib_address (ptid_t ptid
, CORE_ADDR
*address
);
483 /* Pause all threads. If FREEZE, arrange for any resume attempt to
484 be ignored until an unpause_all call unfreezes threads again.
485 There can be nested calls to pause_all, so a freeze counter
486 should be maintained. */
487 virtual void pause_all (bool freeze
);
489 /* Unpause all threads. Threads that hadn't been resumed by the
490 client should be left stopped. Basically a pause/unpause call
491 pair should not end up resuming threads that were stopped before
493 virtual void unpause_all (bool unfreeze
);
495 /* Stabilize all threads. That is, force them out of jump pads. */
496 virtual void stabilize_threads ();
499 extern process_stratum_target
*the_target
;
501 void set_target_ops (process_stratum_target
*);
503 #define target_create_inferior(program, program_args) \
504 the_target->pt->create_inferior (program, program_args)
506 #define target_post_create_inferior() \
507 the_target->pt->post_create_inferior ()
509 #define myattach(pid) \
510 the_target->pt->attach (pid)
512 int kill_inferior (process_info
*proc
);
514 #define target_supports_fork_events() \
515 the_target->pt->supports_fork_events ()
517 #define target_supports_vfork_events() \
518 the_target->pt->supports_vfork_events ()
520 #define target_supports_exec_events() \
521 the_target->pt->supports_exec_events ()
523 #define target_handle_new_gdb_connection() \
524 the_target->pt->handle_new_gdb_connection ()
526 #define detach_inferior(proc) \
527 the_target->pt->detach (proc)
529 #define mythread_alive(pid) \
530 the_target->pt->thread_alive (pid)
532 #define fetch_inferior_registers(regcache, regno) \
533 the_target->pt->fetch_registers (regcache, regno)
535 #define store_inferior_registers(regcache, regno) \
536 the_target->pt->store_registers (regcache, regno)
538 #define join_inferior(pid) \
539 the_target->pt->join (pid)
541 #define target_supports_non_stop() \
542 the_target->pt->supports_non_stop ()
544 #define target_async(enable) \
545 the_target->pt->async (enable)
547 #define target_process_qsupported(features, count) \
548 the_target->pt->process_qsupported (features, count)
550 #define target_supports_catch_syscall() \
551 (the_target->supports_catch_syscall ? \
552 (*the_target->supports_catch_syscall) () : 0)
554 #define target_get_ipa_tdesc_idx() \
555 (the_target->get_ipa_tdesc_idx \
556 ? (*the_target->get_ipa_tdesc_idx) () : 0)
558 #define target_supports_tracepoints() \
559 the_target->pt->supports_tracepoints ()
561 #define target_supports_fast_tracepoints() \
562 (the_target->install_fast_tracepoint_jump_pad != NULL)
564 #define target_get_min_fast_tracepoint_insn_len() \
565 (the_target->get_min_fast_tracepoint_insn_len \
566 ? (*the_target->get_min_fast_tracepoint_insn_len) () : 0)
568 #define target_thread_stopped(thread) \
569 the_target->pt->thread_stopped (thread)
571 #define target_pause_all(freeze) \
572 the_target->pt->pause_all (freeze)
574 #define target_unpause_all(unfreeze) \
575 the_target->pt->unpause_all (unfreeze)
577 #define target_stabilize_threads() \
578 the_target->pt->stabilize_threads ()
580 #define install_fast_tracepoint_jump_pad(tpoint, tpaddr, \
581 collector, lockaddr, \
584 trampoline, trampoline_size, \
586 jjump_pad_insn_size, \
587 adjusted_insn_addr, \
588 adjusted_insn_addr_end, \
590 (*the_target->install_fast_tracepoint_jump_pad) (tpoint, tpaddr, \
591 collector,lockaddr, \
592 orig_size, jump_entry, \
596 jjump_pad_insn_size, \
597 adjusted_insn_addr, \
598 adjusted_insn_addr_end, \
601 #define target_emit_ops() \
602 (the_target->emit_ops ? (*the_target->emit_ops) () : NULL)
604 #define target_supports_disable_randomization() \
605 (the_target->supports_disable_randomization ? \
606 (*the_target->supports_disable_randomization) () : 0)
608 #define target_supports_agent() \
609 (the_target->supports_agent ? \
610 (*the_target->supports_agent) () : 0)
612 static inline struct btrace_target_info
*
613 target_enable_btrace (ptid_t ptid
, const struct btrace_config
*conf
)
615 if (the_target
->enable_btrace
== nullptr)
616 error (_("Target does not support branch tracing."));
618 return (*the_target
->enable_btrace
) (ptid
, conf
);
622 target_disable_btrace (struct btrace_target_info
*tinfo
)
624 if (the_target
->disable_btrace
== nullptr)
625 error (_("Target does not support branch tracing."));
627 return (*the_target
->disable_btrace
) (tinfo
);
631 target_read_btrace (struct btrace_target_info
*tinfo
,
632 struct buffer
*buffer
,
633 enum btrace_read_type type
)
635 if (the_target
->read_btrace
== nullptr)
636 error (_("Target does not support branch tracing."));
638 return (*the_target
->read_btrace
) (tinfo
, buffer
, type
);
642 target_read_btrace_conf (struct btrace_target_info
*tinfo
,
643 struct buffer
*buffer
)
645 if (the_target
->read_btrace_conf
== nullptr)
646 error (_("Target does not support branch tracing."));
648 return (*the_target
->read_btrace_conf
) (tinfo
, buffer
);
651 #define target_supports_range_stepping() \
652 (the_target->supports_range_stepping ? \
653 (*the_target->supports_range_stepping) () : 0)
655 #define target_supports_stopped_by_sw_breakpoint() \
656 the_target->pt->supports_stopped_by_sw_breakpoint ()
658 #define target_stopped_by_sw_breakpoint() \
659 the_target->pt->stopped_by_sw_breakpoint ()
661 #define target_supports_stopped_by_hw_breakpoint() \
662 the_target->pt->supports_stopped_by_hw_breakpoint ()
664 #define target_supports_hardware_single_step() \
665 the_target->pt->supports_hardware_single_step ()
667 #define target_stopped_by_hw_breakpoint() \
668 the_target->pt->stopped_by_hw_breakpoint ()
670 #define target_breakpoint_kind_from_pc(pcptr) \
671 (the_target->breakpoint_kind_from_pc \
672 ? (*the_target->breakpoint_kind_from_pc) (pcptr) \
673 : default_breakpoint_kind_from_pc (pcptr))
675 #define target_breakpoint_kind_from_current_state(pcptr) \
676 (the_target->breakpoint_kind_from_current_state \
677 ? (*the_target->breakpoint_kind_from_current_state) (pcptr) \
678 : target_breakpoint_kind_from_pc (pcptr))
680 #define target_supports_software_single_step() \
681 (the_target->supports_software_single_step ? \
682 (*the_target->supports_software_single_step) () : 0)
684 ptid_t
mywait (ptid_t ptid
, struct target_waitstatus
*ourstatus
, int options
,
687 /* Prepare to read or write memory from the inferior process. See the
688 corresponding process_stratum_target methods for more details. */
690 int prepare_to_access_memory (void);
691 void done_accessing_memory (void);
693 #define target_core_of_thread(ptid) \
694 the_target->pt->core_of_thread (ptid)
696 #define target_thread_name(ptid) \
697 (the_target->thread_name ? (*the_target->thread_name) (ptid) \
700 #define target_thread_handle(ptid, handle, handle_len) \
701 (the_target->thread_handle ? (*the_target->thread_handle) \
702 (ptid, handle, handle_len) \
705 int read_inferior_memory (CORE_ADDR memaddr
, unsigned char *myaddr
, int len
);
707 int set_desired_thread ();
709 const char *target_pid_to_str (ptid_t
);
711 int default_breakpoint_kind_from_pc (CORE_ADDR
*pcptr
);
713 #endif /* GDBSERVER_TARGET_H */