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 /* Enable branch tracing for PTID based on CONF and allocate a branch trace
74 target information struct for reading and for disabling branch trace. */
75 struct btrace_target_info
*(*enable_btrace
)
76 (ptid_t ptid
, const struct btrace_config
*conf
);
78 /* Disable branch tracing.
79 Returns zero on success, non-zero otherwise. */
80 int (*disable_btrace
) (struct btrace_target_info
*tinfo
);
82 /* Read branch trace data into buffer.
83 Return 0 on success; print an error message into BUFFER and return -1,
85 int (*read_btrace
) (struct btrace_target_info
*, struct buffer
*,
86 enum btrace_read_type type
);
88 /* Read the branch trace configuration into BUFFER.
89 Return 0 on success; print an error message into BUFFER and return -1
91 int (*read_btrace_conf
) (const struct btrace_target_info
*, struct buffer
*);
93 /* Return true if target supports range stepping. */
94 int (*supports_range_stepping
) (void);
96 /* Return the full absolute name of the executable file that was
97 run to create the process PID. If the executable file cannot
98 be determined, NULL is returned. Otherwise, a pointer to a
99 character string containing the pathname is returned. This
100 string should be copied into a buffer by the client if the string
101 will not be immediately used, or if it must persist. */
102 char *(*pid_to_exec_file
) (int pid
);
104 /* Multiple-filesystem-aware open. Like open(2), but operating in
105 the filesystem as it appears to process PID. Systems where all
106 processes share a common filesystem should set this to NULL.
107 If NULL, the caller should fall back to open(2). */
108 int (*multifs_open
) (int pid
, const char *filename
,
109 int flags
, mode_t mode
);
111 /* Multiple-filesystem-aware unlink. Like unlink(2), but operates
112 in the filesystem as it appears to process PID. Systems where
113 all processes share a common filesystem should set this to NULL.
114 If NULL, the caller should fall back to unlink(2). */
115 int (*multifs_unlink
) (int pid
, const char *filename
);
117 /* Multiple-filesystem-aware readlink. Like readlink(2), but
118 operating in the filesystem as it appears to process PID.
119 Systems where all processes share a common filesystem should
120 set this to NULL. If NULL, the caller should fall back to
122 ssize_t (*multifs_readlink
) (int pid
, const char *filename
,
123 char *buf
, size_t bufsiz
);
125 /* Return the breakpoint kind for this target based on PC. The PCPTR is
126 adjusted to the real memory location in case a flag (e.g., the Thumb bit on
127 ARM) was present in the PC. */
128 int (*breakpoint_kind_from_pc
) (CORE_ADDR
*pcptr
);
130 /* Return the software breakpoint from KIND. KIND can have target
131 specific meaning like the Z0 kind parameter.
132 SIZE is set to the software breakpoint's length in memory. */
133 const gdb_byte
*(*sw_breakpoint_from_kind
) (int kind
, int *size
);
135 /* Return the thread's name, or NULL if the target is unable to determine it.
136 The returned value must not be freed by the caller. */
137 const char *(*thread_name
) (ptid_t thread
);
139 /* Return the breakpoint kind for this target based on the current
140 processor state (e.g. the current instruction mode on ARM) and the
141 PC. The PCPTR is adjusted to the real memory location in case a flag
142 (e.g., the Thumb bit on ARM) is present in the PC. */
143 int (*breakpoint_kind_from_current_state
) (CORE_ADDR
*pcptr
);
145 /* Returns true if the target can software single step. */
146 int (*supports_software_single_step
) (void);
148 /* Return 1 if the target supports catch syscall, 0 (or leave the
149 callback NULL) otherwise. */
150 int (*supports_catch_syscall
) (void);
152 /* Return tdesc index for IPA. */
153 int (*get_ipa_tdesc_idx
) (void);
155 /* Thread ID to (numeric) thread handle: Return true on success and
156 false for failure. Return pointer to thread handle via HANDLE
157 and the handle's length via HANDLE_LEN. */
158 bool (*thread_handle
) (ptid_t ptid
, gdb_byte
**handle
, int *handle_len
);
160 /* The object that will gradually replace this struct. */
168 virtual ~process_target () = default;
170 /* Start a new process.
172 PROGRAM is a path to the program to execute.
173 PROGRAM_ARGS is a standard NULL-terminated array of arguments,
174 to be passed to the inferior as ``argv'' (along with PROGRAM).
176 Returns the new PID on success, -1 on failure. Registers the new
177 process with the process list. */
178 virtual int create_inferior (const char *program
,
179 const std::vector
<char *> &program_args
) = 0;
181 /* Do additional setup after a new process is created, including
182 exec-wrapper completion. */
183 virtual void post_create_inferior ();
185 /* Attach to a running process.
187 PID is the process ID to attach to, specified by the user
190 Returns -1 if attaching is unsupported, 0 on success, and calls
191 error() otherwise. */
192 virtual int attach (unsigned long pid
) = 0;
194 /* Kill process PROC. Return -1 on failure, and 0 on success. */
195 virtual int kill (process_info
*proc
) = 0;
197 /* Detach from process PROC. Return -1 on failure, and 0 on
199 virtual int detach (process_info
*proc
) = 0;
201 /* The inferior process has died. Do what is right. */
202 virtual void mourn (process_info
*proc
) = 0;
204 /* Wait for process PID to exit. */
205 virtual void join (int pid
) = 0;
207 /* Return true iff the thread with process ID PID is alive. */
208 virtual bool thread_alive (ptid_t pid
) = 0;
210 /* Resume the inferior process. */
211 virtual void resume (thread_resume
*resume_info
, size_t n
) = 0;
213 /* Wait for the inferior process or thread to change state. Store
214 status through argument pointer STATUS.
216 PTID = -1 to wait for any pid to do something, PTID(pid,0,0) to
217 wait for any thread of process pid to do something. Return ptid
218 of child, or -1 in case of error; store status through argument
219 pointer STATUS. OPTIONS is a bit set of options defined as
220 TARGET_W* above. If options contains TARGET_WNOHANG and there's
221 no child stop to report, return is
222 null_ptid/TARGET_WAITKIND_IGNORE. */
223 virtual ptid_t
wait (ptid_t ptid
, target_waitstatus
*status
,
226 /* Fetch registers from the inferior process.
228 If REGNO is -1, fetch all registers; otherwise, fetch at least REGNO. */
229 virtual void fetch_registers (regcache
*regcache
, int regno
) = 0;
231 /* Store registers to the inferior process.
233 If REGNO is -1, store all registers; otherwise, store at least REGNO. */
234 virtual void store_registers (regcache
*regcache
, int regno
) = 0;
236 /* Prepare to read or write memory from the inferior process.
237 Targets use this to do what is necessary to get the state of the
238 inferior such that it is possible to access memory.
240 This should generally only be called from client facing routines,
241 such as gdb_read_memory/gdb_write_memory, or the GDB breakpoint
244 Like `read_memory' and `write_memory' below, returns 0 on success
245 and errno on failure. */
246 virtual int prepare_to_access_memory ();
248 /* Undo the effects of prepare_to_access_memory. */
249 virtual void done_accessing_memory ();
251 /* Read memory from the inferior process. This should generally be
252 called through read_inferior_memory, which handles breakpoint shadowing.
254 Read LEN bytes at MEMADDR into a buffer at MYADDR.
256 Returns 0 on success and errno on failure. */
257 virtual int read_memory (CORE_ADDR memaddr
, unsigned char *myaddr
,
260 /* Write memory to the inferior process. This should generally be
261 called through target_write_memory, which handles breakpoint shadowing.
263 Write LEN bytes from the buffer at MYADDR to MEMADDR.
265 Returns 0 on success and errno on failure. */
266 virtual int write_memory (CORE_ADDR memaddr
, const unsigned char *myaddr
,
269 /* Query GDB for the values of any symbols we're interested in.
270 This function is called whenever we receive a "qSymbols::"
271 query, which corresponds to every time more symbols (might)
273 virtual void look_up_symbols ();
275 /* Send an interrupt request to the inferior process,
276 however is appropriate. */
277 virtual void request_interrupt () = 0;
279 /* Return true if the read_auxv target op is supported. */
280 virtual bool supports_read_auxv ();
282 /* Read auxiliary vector data from the inferior process.
284 Read LEN bytes at OFFSET into a buffer at MYADDR. */
285 virtual int read_auxv (CORE_ADDR offset
, unsigned char *myaddr
,
288 /* Returns true if GDB Z breakpoint type TYPE is supported, false
289 otherwise. The type is coded as follows:
290 '0' - software-breakpoint
291 '1' - hardware-breakpoint
292 '2' - write watchpoint
293 '3' - read watchpoint
294 '4' - access watchpoint
296 virtual bool supports_z_point_type (char z_type
);
298 /* Insert and remove a break or watchpoint.
299 Returns 0 on success, -1 on failure and 1 on unsupported. */
300 virtual int insert_point (enum raw_bkpt_type type
, CORE_ADDR addr
,
301 int size
, raw_breakpoint
*bp
);
303 virtual int remove_point (enum raw_bkpt_type type
, CORE_ADDR addr
,
304 int size
, raw_breakpoint
*bp
);
306 /* Returns true if the target stopped because it executed a software
307 breakpoint instruction, false otherwise. */
308 virtual bool stopped_by_sw_breakpoint ();
310 /* Returns true if the target knows whether a trap was caused by a
311 SW breakpoint triggering. */
312 virtual bool supports_stopped_by_sw_breakpoint ();
314 /* Returns true if the target stopped for a hardware breakpoint. */
315 virtual bool stopped_by_hw_breakpoint ();
317 /* Returns true if the target knows whether a trap was caused by a
318 HW breakpoint triggering. */
319 virtual bool supports_stopped_by_hw_breakpoint ();
321 /* Returns true if the target can do hardware single step. */
322 virtual bool supports_hardware_single_step ();
324 /* Returns true if target was stopped due to a watchpoint hit, false
326 virtual bool stopped_by_watchpoint ();
328 /* Returns the address associated with the watchpoint that hit, if any;
329 returns 0 otherwise. */
330 virtual CORE_ADDR
stopped_data_address ();
332 /* Return true if the read_offsets target op is supported. */
333 virtual bool supports_read_offsets ();
335 /* Reports the text, data offsets of the executable. This is
336 needed for uclinux where the executable is relocated during load
338 virtual int read_offsets (CORE_ADDR
*text
, CORE_ADDR
*data
);
340 /* Return true if the get_tls_address target op is supported. */
341 virtual bool supports_get_tls_address ();
343 /* Fetch the address associated with a specific thread local storage
344 area, determined by the specified THREAD, OFFSET, and LOAD_MODULE.
345 Stores it in *ADDRESS and returns zero on success; otherwise returns
346 an error code. A return value of -1 means this system does not
347 support the operation. */
348 virtual int get_tls_address (thread_info
*thread
, CORE_ADDR offset
,
349 CORE_ADDR load_module
, CORE_ADDR
*address
);
351 /* Fill BUF with an hostio error packet representing the last hostio
353 virtual void hostio_last_error (char *buf
);
355 /* Return true if the qxfer_osdata target op is supported. */
356 virtual bool supports_qxfer_osdata ();
358 /* Read/Write OS data using qXfer packets. */
359 virtual int qxfer_osdata (const char *annex
, unsigned char *readbuf
,
360 unsigned const char *writebuf
,
361 CORE_ADDR offset
, int len
);
363 /* Return true if the qxfer_siginfo target op is supported. */
364 virtual bool supports_qxfer_siginfo ();
366 /* Read/Write extra signal info. */
367 virtual int qxfer_siginfo (const char *annex
, unsigned char *readbuf
,
368 unsigned const char *writebuf
,
369 CORE_ADDR offset
, int len
);
371 /* Return true if non-stop mode is supported. */
372 virtual bool supports_non_stop ();
374 /* Enables async target events. Returns the previous enable
376 virtual bool async (bool enable
);
378 /* Switch to non-stop (ENABLE == true) or all-stop (ENABLE == false)
379 mode. Return 0 on success, -1 otherwise. */
380 virtual int start_non_stop (bool enable
);
382 /* Returns true if the target supports multi-process debugging. */
383 virtual bool supports_multi_process ();
385 /* Returns true if fork events are supported. */
386 virtual bool supports_fork_events ();
388 /* Returns true if vfork events are supported. */
389 virtual bool supports_vfork_events ();
391 /* Returns true if exec events are supported. */
392 virtual bool supports_exec_events ();
394 /* Allows target to re-initialize connection-specific settings. */
395 virtual void handle_new_gdb_connection ();
397 /* The target-specific routine to process monitor command.
398 Returns 1 if handled, or 0 to perform default processing. */
399 virtual int handle_monitor_command (char *mon
);
401 /* Returns the core given a thread, or -1 if not known. */
402 virtual int core_of_thread (ptid_t ptid
);
404 /* Returns true if the read_loadmap target op is supported. */
405 virtual bool supports_read_loadmap ();
407 /* Read loadmaps. Read LEN bytes at OFFSET into a buffer at MYADDR. */
408 virtual int read_loadmap (const char *annex
, CORE_ADDR offset
,
409 unsigned char *myaddr
, unsigned int len
);
411 /* Target specific qSupported support. FEATURES is an array of
412 features with COUNT elements. */
413 virtual void process_qsupported (char **features
, int count
);
415 /* Return true if the target supports tracepoints, false otherwise. */
416 virtual bool supports_tracepoints ();
418 /* Read PC from REGCACHE. */
419 virtual CORE_ADDR
read_pc (regcache
*regcache
);
421 /* Write PC to REGCACHE. */
422 virtual void write_pc (regcache
*regcache
, CORE_ADDR pc
);
424 /* Return true if the thread_stopped op is supported. */
425 virtual bool supports_thread_stopped ();
427 /* Return true if THREAD is known to be stopped now. */
428 virtual bool thread_stopped (thread_info
*thread
);
430 /* Return true if the get_tib_address op is supported. */
431 virtual bool supports_get_tib_address ();
433 /* Read Thread Information Block address. */
434 virtual int get_tib_address (ptid_t ptid
, CORE_ADDR
*address
);
436 /* Pause all threads. If FREEZE, arrange for any resume attempt to
437 be ignored until an unpause_all call unfreezes threads again.
438 There can be nested calls to pause_all, so a freeze counter
439 should be maintained. */
440 virtual void pause_all (bool freeze
);
442 /* Unpause all threads. Threads that hadn't been resumed by the
443 client should be left stopped. Basically a pause/unpause call
444 pair should not end up resuming threads that were stopped before
446 virtual void unpause_all (bool unfreeze
);
448 /* Stabilize all threads. That is, force them out of jump pads. */
449 virtual void stabilize_threads ();
451 /* Return true if the install_fast_tracepoint_jump_pad op is
453 virtual bool supports_fast_tracepoints ();
455 /* Install a fast tracepoint jump pad. TPOINT is the address of the
456 tracepoint internal object as used by the IPA agent. TPADDR is
457 the address of tracepoint. COLLECTOR is address of the function
458 the jump pad redirects to. LOCKADDR is the address of the jump
459 pad lock object. ORIG_SIZE is the size in bytes of the
460 instruction at TPADDR. JUMP_ENTRY points to the address of the
461 jump pad entry, and on return holds the address past the end of
462 the created jump pad. If a trampoline is created by the function,
463 then TRAMPOLINE and TRAMPOLINE_SIZE return the address and size of
464 the trampoline, else they remain unchanged. JJUMP_PAD_INSN is a
465 buffer containing a copy of the instruction at TPADDR.
466 ADJUST_INSN_ADDR and ADJUST_INSN_ADDR_END are output parameters that
467 return the address range where the instruction at TPADDR was relocated
468 to. If an error occurs, the ERR may be used to pass on an error
470 virtual int install_fast_tracepoint_jump_pad
471 (CORE_ADDR tpoint
, CORE_ADDR tpaddr
, CORE_ADDR collector
,
472 CORE_ADDR lockaddr
, ULONGEST orig_size
, CORE_ADDR
*jump_entry
,
473 CORE_ADDR
*trampoline
, ULONGEST
*trampoline_size
,
474 unsigned char *jjump_pad_insn
, ULONGEST
*jjump_pad_insn_size
,
475 CORE_ADDR
*adjusted_insn_addr
, CORE_ADDR
*adjusted_insn_addr_end
,
478 /* Return the minimum length of an instruction that can be safely
479 overwritten for use as a fast tracepoint. */
480 virtual int get_min_fast_tracepoint_insn_len ();
482 /* Return the bytecode operations vector for the current inferior.
483 Returns nullptr if bytecode compilation is not supported. */
484 virtual struct emit_ops
*emit_ops ();
486 /* Returns true if the target supports disabling randomization. */
487 virtual bool supports_disable_randomization ();
489 /* Return true if the qxfer_libraries_svr4 op is supported. */
490 virtual bool supports_qxfer_libraries_svr4 ();
492 /* Read solib info on SVR4 platforms. */
493 virtual int qxfer_libraries_svr4 (const char *annex
,
494 unsigned char *readbuf
,
495 unsigned const char *writebuf
,
496 CORE_ADDR offset
, int len
);
498 /* Return true if target supports debugging agent. */
499 virtual bool supports_agent ();
502 extern process_stratum_target
*the_target
;
504 void set_target_ops (process_stratum_target
*);
506 #define target_create_inferior(program, program_args) \
507 the_target->pt->create_inferior (program, program_args)
509 #define target_post_create_inferior() \
510 the_target->pt->post_create_inferior ()
512 #define myattach(pid) \
513 the_target->pt->attach (pid)
515 int kill_inferior (process_info
*proc
);
517 #define target_supports_fork_events() \
518 the_target->pt->supports_fork_events ()
520 #define target_supports_vfork_events() \
521 the_target->pt->supports_vfork_events ()
523 #define target_supports_exec_events() \
524 the_target->pt->supports_exec_events ()
526 #define target_handle_new_gdb_connection() \
527 the_target->pt->handle_new_gdb_connection ()
529 #define detach_inferior(proc) \
530 the_target->pt->detach (proc)
532 #define mythread_alive(pid) \
533 the_target->pt->thread_alive (pid)
535 #define fetch_inferior_registers(regcache, regno) \
536 the_target->pt->fetch_registers (regcache, regno)
538 #define store_inferior_registers(regcache, regno) \
539 the_target->pt->store_registers (regcache, regno)
541 #define join_inferior(pid) \
542 the_target->pt->join (pid)
544 #define target_supports_non_stop() \
545 the_target->pt->supports_non_stop ()
547 #define target_async(enable) \
548 the_target->pt->async (enable)
550 #define target_process_qsupported(features, count) \
551 the_target->pt->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->pt->supports_tracepoints ()
564 #define target_supports_fast_tracepoints() \
565 the_target->pt->supports_fast_tracepoints ()
567 #define target_get_min_fast_tracepoint_insn_len() \
568 the_target->pt->get_min_fast_tracepoint_insn_len ()
570 #define target_thread_stopped(thread) \
571 the_target->pt->thread_stopped (thread)
573 #define target_pause_all(freeze) \
574 the_target->pt->pause_all (freeze)
576 #define target_unpause_all(unfreeze) \
577 the_target->pt->unpause_all (unfreeze)
579 #define target_stabilize_threads() \
580 the_target->pt->stabilize_threads ()
582 #define target_install_fast_tracepoint_jump_pad(tpoint, tpaddr, \
583 collector, lockaddr, \
586 trampoline, trampoline_size, \
588 jjump_pad_insn_size, \
589 adjusted_insn_addr, \
590 adjusted_insn_addr_end, \
592 the_target->pt->install_fast_tracepoint_jump_pad (tpoint, tpaddr, \
593 collector,lockaddr, \
594 orig_size, jump_entry, \
598 jjump_pad_insn_size, \
599 adjusted_insn_addr, \
600 adjusted_insn_addr_end, \
603 #define target_emit_ops() \
604 the_target->pt->emit_ops ()
606 #define target_supports_disable_randomization() \
607 the_target->pt->supports_disable_randomization ()
609 #define target_supports_agent() \
610 the_target->pt->supports_agent ()
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 */