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 /* Pause all threads. If FREEZE, arrange for any resume attempt to
74 be ignored until an unpause_all call unfreezes threads again.
75 There can be nested calls to pause_all, so a freeze counter
76 should be maintained. */
77 void (*pause_all
) (int freeze
);
79 /* Unpause all threads. Threads that hadn't been resumed by the
80 client should be left stopped. Basically a pause/unpause call
81 pair should not end up resuming threads that were stopped before
83 void (*unpause_all
) (int unfreeze
);
85 /* Stabilize all threads. That is, force them out of jump pads. */
86 void (*stabilize_threads
) (void);
88 /* Install a fast tracepoint jump pad. TPOINT is the address of the
89 tracepoint internal object as used by the IPA agent. TPADDR is
90 the address of tracepoint. COLLECTOR is address of the function
91 the jump pad redirects to. LOCKADDR is the address of the jump
92 pad lock object. ORIG_SIZE is the size in bytes of the
93 instruction at TPADDR. JUMP_ENTRY points to the address of the
94 jump pad entry, and on return holds the address past the end of
95 the created jump pad. If a trampoline is created by the function,
96 then TRAMPOLINE and TRAMPOLINE_SIZE return the address and size of
97 the trampoline, else they remain unchanged. JJUMP_PAD_INSN is a
98 buffer containing a copy of the instruction at TPADDR.
99 ADJUST_INSN_ADDR and ADJUST_INSN_ADDR_END are output parameters that
100 return the address range where the instruction at TPADDR was relocated
101 to. If an error occurs, the ERR may be used to pass on an error
103 int (*install_fast_tracepoint_jump_pad
) (CORE_ADDR tpoint
, CORE_ADDR tpaddr
,
107 CORE_ADDR
*jump_entry
,
108 CORE_ADDR
*trampoline
,
109 ULONGEST
*trampoline_size
,
110 unsigned char *jjump_pad_insn
,
111 ULONGEST
*jjump_pad_insn_size
,
112 CORE_ADDR
*adjusted_insn_addr
,
113 CORE_ADDR
*adjusted_insn_addr_end
,
116 /* Return the bytecode operations vector for the current inferior.
117 Returns NULL if bytecode compilation is not supported. */
118 struct emit_ops
*(*emit_ops
) (void);
120 /* Returns true if the target supports disabling randomization. */
121 int (*supports_disable_randomization
) (void);
123 /* Return the minimum length of an instruction that can be safely overwritten
124 for use as a fast tracepoint. */
125 int (*get_min_fast_tracepoint_insn_len
) (void);
127 /* Read solib info on SVR4 platforms. */
128 int (*qxfer_libraries_svr4
) (const char *annex
, unsigned char *readbuf
,
129 unsigned const char *writebuf
,
130 CORE_ADDR offset
, int len
);
132 /* Return true if target supports debugging agent. */
133 int (*supports_agent
) (void);
135 /* Enable branch tracing for PTID based on CONF and allocate a branch trace
136 target information struct for reading and for disabling branch trace. */
137 struct btrace_target_info
*(*enable_btrace
)
138 (ptid_t ptid
, const struct btrace_config
*conf
);
140 /* Disable branch tracing.
141 Returns zero on success, non-zero otherwise. */
142 int (*disable_btrace
) (struct btrace_target_info
*tinfo
);
144 /* Read branch trace data into buffer.
145 Return 0 on success; print an error message into BUFFER and return -1,
147 int (*read_btrace
) (struct btrace_target_info
*, struct buffer
*,
148 enum btrace_read_type type
);
150 /* Read the branch trace configuration into BUFFER.
151 Return 0 on success; print an error message into BUFFER and return -1
153 int (*read_btrace_conf
) (const struct btrace_target_info
*, struct buffer
*);
155 /* Return true if target supports range stepping. */
156 int (*supports_range_stepping
) (void);
158 /* Return the full absolute name of the executable file that was
159 run to create the process PID. If the executable file cannot
160 be determined, NULL is returned. Otherwise, a pointer to a
161 character string containing the pathname is returned. This
162 string should be copied into a buffer by the client if the string
163 will not be immediately used, or if it must persist. */
164 char *(*pid_to_exec_file
) (int pid
);
166 /* Multiple-filesystem-aware open. Like open(2), but operating in
167 the filesystem as it appears to process PID. Systems where all
168 processes share a common filesystem should set this to NULL.
169 If NULL, the caller should fall back to open(2). */
170 int (*multifs_open
) (int pid
, const char *filename
,
171 int flags
, mode_t mode
);
173 /* Multiple-filesystem-aware unlink. Like unlink(2), but operates
174 in the filesystem as it appears to process PID. Systems where
175 all processes share a common filesystem should set this to NULL.
176 If NULL, the caller should fall back to unlink(2). */
177 int (*multifs_unlink
) (int pid
, const char *filename
);
179 /* Multiple-filesystem-aware readlink. Like readlink(2), but
180 operating in the filesystem as it appears to process PID.
181 Systems where all processes share a common filesystem should
182 set this to NULL. If NULL, the caller should fall back to
184 ssize_t (*multifs_readlink
) (int pid
, const char *filename
,
185 char *buf
, size_t bufsiz
);
187 /* Return the breakpoint kind for this target based on PC. The PCPTR is
188 adjusted to the real memory location in case a flag (e.g., the Thumb bit on
189 ARM) was present in the PC. */
190 int (*breakpoint_kind_from_pc
) (CORE_ADDR
*pcptr
);
192 /* Return the software breakpoint from KIND. KIND can have target
193 specific meaning like the Z0 kind parameter.
194 SIZE is set to the software breakpoint's length in memory. */
195 const gdb_byte
*(*sw_breakpoint_from_kind
) (int kind
, int *size
);
197 /* Return the thread's name, or NULL if the target is unable to determine it.
198 The returned value must not be freed by the caller. */
199 const char *(*thread_name
) (ptid_t thread
);
201 /* Return the breakpoint kind for this target based on the current
202 processor state (e.g. the current instruction mode on ARM) and the
203 PC. The PCPTR is adjusted to the real memory location in case a flag
204 (e.g., the Thumb bit on ARM) is present in the PC. */
205 int (*breakpoint_kind_from_current_state
) (CORE_ADDR
*pcptr
);
207 /* Returns true if the target can software single step. */
208 int (*supports_software_single_step
) (void);
210 /* Return 1 if the target supports catch syscall, 0 (or leave the
211 callback NULL) otherwise. */
212 int (*supports_catch_syscall
) (void);
214 /* Return tdesc index for IPA. */
215 int (*get_ipa_tdesc_idx
) (void);
217 /* Thread ID to (numeric) thread handle: Return true on success and
218 false for failure. Return pointer to thread handle via HANDLE
219 and the handle's length via HANDLE_LEN. */
220 bool (*thread_handle
) (ptid_t ptid
, gdb_byte
**handle
, int *handle_len
);
222 /* The object that will gradually replace this struct. */
230 virtual ~process_target () = default;
232 /* Start a new process.
234 PROGRAM is a path to the program to execute.
235 PROGRAM_ARGS is a standard NULL-terminated array of arguments,
236 to be passed to the inferior as ``argv'' (along with PROGRAM).
238 Returns the new PID on success, -1 on failure. Registers the new
239 process with the process list. */
240 virtual int create_inferior (const char *program
,
241 const std::vector
<char *> &program_args
) = 0;
243 /* Do additional setup after a new process is created, including
244 exec-wrapper completion. */
245 virtual void post_create_inferior ();
247 /* Attach to a running process.
249 PID is the process ID to attach to, specified by the user
252 Returns -1 if attaching is unsupported, 0 on success, and calls
253 error() otherwise. */
254 virtual int attach (unsigned long pid
) = 0;
256 /* Kill process PROC. Return -1 on failure, and 0 on success. */
257 virtual int kill (process_info
*proc
) = 0;
259 /* Detach from process PROC. Return -1 on failure, and 0 on
261 virtual int detach (process_info
*proc
) = 0;
263 /* The inferior process has died. Do what is right. */
264 virtual void mourn (process_info
*proc
) = 0;
266 /* Wait for process PID to exit. */
267 virtual void join (int pid
) = 0;
269 /* Return true iff the thread with process ID PID is alive. */
270 virtual bool thread_alive (ptid_t pid
) = 0;
272 /* Resume the inferior process. */
273 virtual void resume (thread_resume
*resume_info
, size_t n
) = 0;
275 /* Wait for the inferior process or thread to change state. Store
276 status through argument pointer STATUS.
278 PTID = -1 to wait for any pid to do something, PTID(pid,0,0) to
279 wait for any thread of process pid to do something. Return ptid
280 of child, or -1 in case of error; store status through argument
281 pointer STATUS. OPTIONS is a bit set of options defined as
282 TARGET_W* above. If options contains TARGET_WNOHANG and there's
283 no child stop to report, return is
284 null_ptid/TARGET_WAITKIND_IGNORE. */
285 virtual ptid_t
wait (ptid_t ptid
, target_waitstatus
*status
,
288 /* Fetch registers from the inferior process.
290 If REGNO is -1, fetch all registers; otherwise, fetch at least REGNO. */
291 virtual void fetch_registers (regcache
*regcache
, int regno
) = 0;
293 /* Store registers to the inferior process.
295 If REGNO is -1, store all registers; otherwise, store at least REGNO. */
296 virtual void store_registers (regcache
*regcache
, int regno
) = 0;
298 /* Prepare to read or write memory from the inferior process.
299 Targets use this to do what is necessary to get the state of the
300 inferior such that it is possible to access memory.
302 This should generally only be called from client facing routines,
303 such as gdb_read_memory/gdb_write_memory, or the GDB breakpoint
306 Like `read_memory' and `write_memory' below, returns 0 on success
307 and errno on failure. */
308 virtual int prepare_to_access_memory ();
310 /* Undo the effects of prepare_to_access_memory. */
311 virtual void done_accessing_memory ();
313 /* Read memory from the inferior process. This should generally be
314 called through read_inferior_memory, which handles breakpoint shadowing.
316 Read LEN bytes at MEMADDR into a buffer at MYADDR.
318 Returns 0 on success and errno on failure. */
319 virtual int read_memory (CORE_ADDR memaddr
, unsigned char *myaddr
,
322 /* Write memory to the inferior process. This should generally be
323 called through target_write_memory, which handles breakpoint shadowing.
325 Write LEN bytes from the buffer at MYADDR to MEMADDR.
327 Returns 0 on success and errno on failure. */
328 virtual int write_memory (CORE_ADDR memaddr
, const unsigned char *myaddr
,
331 /* Query GDB for the values of any symbols we're interested in.
332 This function is called whenever we receive a "qSymbols::"
333 query, which corresponds to every time more symbols (might)
335 virtual void look_up_symbols ();
337 /* Send an interrupt request to the inferior process,
338 however is appropriate. */
339 virtual void request_interrupt () = 0;
341 /* Return true if the read_auxv target op is supported. */
342 virtual bool supports_read_auxv ();
344 /* Read auxiliary vector data from the inferior process.
346 Read LEN bytes at OFFSET into a buffer at MYADDR. */
347 virtual int read_auxv (CORE_ADDR offset
, unsigned char *myaddr
,
350 /* Returns true if GDB Z breakpoint type TYPE is supported, false
351 otherwise. The type is coded as follows:
352 '0' - software-breakpoint
353 '1' - hardware-breakpoint
354 '2' - write watchpoint
355 '3' - read watchpoint
356 '4' - access watchpoint
358 virtual bool supports_z_point_type (char z_type
);
360 /* Insert and remove a break or watchpoint.
361 Returns 0 on success, -1 on failure and 1 on unsupported. */
362 virtual int insert_point (enum raw_bkpt_type type
, CORE_ADDR addr
,
363 int size
, raw_breakpoint
*bp
);
365 virtual int remove_point (enum raw_bkpt_type type
, CORE_ADDR addr
,
366 int size
, raw_breakpoint
*bp
);
368 /* Returns true if the target stopped because it executed a software
369 breakpoint instruction, false otherwise. */
370 virtual bool stopped_by_sw_breakpoint ();
372 /* Returns true if the target knows whether a trap was caused by a
373 SW breakpoint triggering. */
374 virtual bool supports_stopped_by_sw_breakpoint ();
376 /* Returns true if the target stopped for a hardware breakpoint. */
377 virtual bool stopped_by_hw_breakpoint ();
379 /* Returns true if the target knows whether a trap was caused by a
380 HW breakpoint triggering. */
381 virtual bool supports_stopped_by_hw_breakpoint ();
383 /* Returns true if the target can do hardware single step. */
384 virtual bool supports_hardware_single_step ();
386 /* Returns true if target was stopped due to a watchpoint hit, false
388 virtual bool stopped_by_watchpoint ();
390 /* Returns the address associated with the watchpoint that hit, if any;
391 returns 0 otherwise. */
392 virtual CORE_ADDR
stopped_data_address ();
394 /* Return true if the read_offsets target op is supported. */
395 virtual bool supports_read_offsets ();
397 /* Reports the text, data offsets of the executable. This is
398 needed for uclinux where the executable is relocated during load
400 virtual int read_offsets (CORE_ADDR
*text
, CORE_ADDR
*data
);
402 /* Return true if the get_tls_address target op is supported. */
403 virtual bool supports_get_tls_address ();
405 /* Fetch the address associated with a specific thread local storage
406 area, determined by the specified THREAD, OFFSET, and LOAD_MODULE.
407 Stores it in *ADDRESS and returns zero on success; otherwise returns
408 an error code. A return value of -1 means this system does not
409 support the operation. */
410 virtual int get_tls_address (thread_info
*thread
, CORE_ADDR offset
,
411 CORE_ADDR load_module
, CORE_ADDR
*address
);
413 /* Fill BUF with an hostio error packet representing the last hostio
415 virtual void hostio_last_error (char *buf
);
417 /* Return true if the qxfer_osdata target op is supported. */
418 virtual bool supports_qxfer_osdata ();
420 /* Read/Write OS data using qXfer packets. */
421 virtual int qxfer_osdata (const char *annex
, unsigned char *readbuf
,
422 unsigned const char *writebuf
,
423 CORE_ADDR offset
, int len
);
425 /* Return true if the qxfer_siginfo target op is supported. */
426 virtual bool supports_qxfer_siginfo ();
428 /* Read/Write extra signal info. */
429 virtual int qxfer_siginfo (const char *annex
, unsigned char *readbuf
,
430 unsigned const char *writebuf
,
431 CORE_ADDR offset
, int len
);
433 /* Return true if non-stop mode is supported. */
434 virtual bool supports_non_stop ();
436 /* Enables async target events. Returns the previous enable
438 virtual bool async (bool enable
);
440 /* Switch to non-stop (ENABLE == true) or all-stop (ENABLE == false)
441 mode. Return 0 on success, -1 otherwise. */
442 virtual int start_non_stop (bool enable
);
444 /* Returns true if the target supports multi-process debugging. */
445 virtual bool supports_multi_process ();
447 /* Returns true if fork events are supported. */
448 virtual bool supports_fork_events ();
450 /* Returns true if vfork events are supported. */
451 virtual bool supports_vfork_events ();
453 /* Returns true if exec events are supported. */
454 virtual bool supports_exec_events ();
456 /* Allows target to re-initialize connection-specific settings. */
457 virtual void handle_new_gdb_connection ();
459 /* The target-specific routine to process monitor command.
460 Returns 1 if handled, or 0 to perform default processing. */
461 virtual int handle_monitor_command (char *mon
);
463 /* Returns the core given a thread, or -1 if not known. */
464 virtual int core_of_thread (ptid_t ptid
);
466 /* Returns true if the read_loadmap target op is supported. */
467 virtual bool supports_read_loadmap ();
469 /* Read loadmaps. Read LEN bytes at OFFSET into a buffer at MYADDR. */
470 virtual int read_loadmap (const char *annex
, CORE_ADDR offset
,
471 unsigned char *myaddr
, unsigned int len
);
473 /* Target specific qSupported support. FEATURES is an array of
474 features with COUNT elements. */
475 virtual void process_qsupported (char **features
, int count
);
477 /* Return true if the target supports tracepoints, false otherwise. */
478 virtual bool supports_tracepoints ();
480 /* Read PC from REGCACHE. */
481 virtual CORE_ADDR
read_pc (regcache
*regcache
);
483 /* Write PC to REGCACHE. */
484 virtual void write_pc (regcache
*regcache
, CORE_ADDR pc
);
486 /* Return true if the thread_stopped op is supported. */
487 virtual bool supports_thread_stopped ();
489 /* Return true if THREAD is known to be stopped now. */
490 virtual bool thread_stopped (thread_info
*thread
);
492 /* Return true if the get_tib_address op is supported. */
493 virtual bool supports_get_tib_address ();
495 /* Read Thread Information Block address. */
496 virtual int get_tib_address (ptid_t ptid
, CORE_ADDR
*address
);
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 pause_all(freeze) \
574 if (the_target->pause_all) \
575 (*the_target->pause_all) (freeze); \
578 #define unpause_all(unfreeze) \
581 if (the_target->unpause_all) \
582 (*the_target->unpause_all) (unfreeze); \
585 #define stabilize_threads() \
588 if (the_target->stabilize_threads) \
589 (*the_target->stabilize_threads) (); \
592 #define install_fast_tracepoint_jump_pad(tpoint, tpaddr, \
593 collector, lockaddr, \
596 trampoline, trampoline_size, \
598 jjump_pad_insn_size, \
599 adjusted_insn_addr, \
600 adjusted_insn_addr_end, \
602 (*the_target->install_fast_tracepoint_jump_pad) (tpoint, tpaddr, \
603 collector,lockaddr, \
604 orig_size, jump_entry, \
608 jjump_pad_insn_size, \
609 adjusted_insn_addr, \
610 adjusted_insn_addr_end, \
613 #define target_emit_ops() \
614 (the_target->emit_ops ? (*the_target->emit_ops) () : NULL)
616 #define target_supports_disable_randomization() \
617 (the_target->supports_disable_randomization ? \
618 (*the_target->supports_disable_randomization) () : 0)
620 #define target_supports_agent() \
621 (the_target->supports_agent ? \
622 (*the_target->supports_agent) () : 0)
624 static inline struct btrace_target_info
*
625 target_enable_btrace (ptid_t ptid
, const struct btrace_config
*conf
)
627 if (the_target
->enable_btrace
== nullptr)
628 error (_("Target does not support branch tracing."));
630 return (*the_target
->enable_btrace
) (ptid
, conf
);
634 target_disable_btrace (struct btrace_target_info
*tinfo
)
636 if (the_target
->disable_btrace
== nullptr)
637 error (_("Target does not support branch tracing."));
639 return (*the_target
->disable_btrace
) (tinfo
);
643 target_read_btrace (struct btrace_target_info
*tinfo
,
644 struct buffer
*buffer
,
645 enum btrace_read_type type
)
647 if (the_target
->read_btrace
== nullptr)
648 error (_("Target does not support branch tracing."));
650 return (*the_target
->read_btrace
) (tinfo
, buffer
, type
);
654 target_read_btrace_conf (struct btrace_target_info
*tinfo
,
655 struct buffer
*buffer
)
657 if (the_target
->read_btrace_conf
== nullptr)
658 error (_("Target does not support branch tracing."));
660 return (*the_target
->read_btrace_conf
) (tinfo
, buffer
);
663 #define target_supports_range_stepping() \
664 (the_target->supports_range_stepping ? \
665 (*the_target->supports_range_stepping) () : 0)
667 #define target_supports_stopped_by_sw_breakpoint() \
668 the_target->pt->supports_stopped_by_sw_breakpoint ()
670 #define target_stopped_by_sw_breakpoint() \
671 the_target->pt->stopped_by_sw_breakpoint ()
673 #define target_supports_stopped_by_hw_breakpoint() \
674 the_target->pt->supports_stopped_by_hw_breakpoint ()
676 #define target_supports_hardware_single_step() \
677 the_target->pt->supports_hardware_single_step ()
679 #define target_stopped_by_hw_breakpoint() \
680 the_target->pt->stopped_by_hw_breakpoint ()
682 #define target_breakpoint_kind_from_pc(pcptr) \
683 (the_target->breakpoint_kind_from_pc \
684 ? (*the_target->breakpoint_kind_from_pc) (pcptr) \
685 : default_breakpoint_kind_from_pc (pcptr))
687 #define target_breakpoint_kind_from_current_state(pcptr) \
688 (the_target->breakpoint_kind_from_current_state \
689 ? (*the_target->breakpoint_kind_from_current_state) (pcptr) \
690 : target_breakpoint_kind_from_pc (pcptr))
692 #define target_supports_software_single_step() \
693 (the_target->supports_software_single_step ? \
694 (*the_target->supports_software_single_step) () : 0)
696 ptid_t
mywait (ptid_t ptid
, struct target_waitstatus
*ourstatus
, int options
,
699 /* Prepare to read or write memory from the inferior process. See the
700 corresponding process_stratum_target methods for more details. */
702 int prepare_to_access_memory (void);
703 void done_accessing_memory (void);
705 #define target_core_of_thread(ptid) \
706 the_target->pt->core_of_thread (ptid)
708 #define target_thread_name(ptid) \
709 (the_target->thread_name ? (*the_target->thread_name) (ptid) \
712 #define target_thread_handle(ptid, handle, handle_len) \
713 (the_target->thread_handle ? (*the_target->thread_handle) \
714 (ptid, handle, handle_len) \
717 int read_inferior_memory (CORE_ADDR memaddr
, unsigned char *myaddr
, int len
);
719 int set_desired_thread ();
721 const char *target_pid_to_str (ptid_t
);
723 int default_breakpoint_kind_from_pc (CORE_ADDR
*pcptr
);
725 #endif /* GDBSERVER_TARGET_H */