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 /* Read memory from the inferior process. This should generally be
74 called through read_inferior_memory, which handles breakpoint shadowing.
76 Read LEN bytes at MEMADDR into a buffer at MYADDR.
78 Returns 0 on success and errno on failure. */
80 int (*read_memory
) (CORE_ADDR memaddr
, unsigned char *myaddr
, int len
);
82 /* Write memory to the inferior process. This should generally be
83 called through target_write_memory, which handles breakpoint shadowing.
85 Write LEN bytes from the buffer at MYADDR to MEMADDR.
87 Returns 0 on success and errno on failure. */
89 int (*write_memory
) (CORE_ADDR memaddr
, const unsigned char *myaddr
,
92 /* Query GDB for the values of any symbols we're interested in.
93 This function is called whenever we receive a "qSymbols::"
94 query, which corresponds to every time more symbols (might)
95 become available. NULL if we aren't interested in any
98 void (*look_up_symbols
) (void);
100 /* Send an interrupt request to the inferior process,
101 however is appropriate. */
103 void (*request_interrupt
) (void);
105 /* Read auxiliary vector data from the inferior process.
107 Read LEN bytes at OFFSET into a buffer at MYADDR. */
109 int (*read_auxv
) (CORE_ADDR offset
, unsigned char *myaddr
,
112 /* Returns true if GDB Z breakpoint type TYPE is supported, false
113 otherwise. The type is coded as follows:
114 '0' - software-breakpoint
115 '1' - hardware-breakpoint
116 '2' - write watchpoint
117 '3' - read watchpoint
118 '4' - access watchpoint
120 int (*supports_z_point_type
) (char z_type
);
122 /* Insert and remove a break or watchpoint.
123 Returns 0 on success, -1 on failure and 1 on unsupported. */
125 int (*insert_point
) (enum raw_bkpt_type type
, CORE_ADDR addr
,
126 int size
, struct raw_breakpoint
*bp
);
127 int (*remove_point
) (enum raw_bkpt_type type
, CORE_ADDR addr
,
128 int size
, struct raw_breakpoint
*bp
);
130 /* Returns 1 if the target stopped because it executed a software
131 breakpoint instruction, 0 otherwise. */
132 int (*stopped_by_sw_breakpoint
) (void);
134 /* Returns true if the target knows whether a trap was caused by a
135 SW breakpoint triggering. */
136 int (*supports_stopped_by_sw_breakpoint
) (void);
138 /* Returns 1 if the target stopped for a hardware breakpoint. */
139 int (*stopped_by_hw_breakpoint
) (void);
141 /* Returns true if the target knows whether a trap was caused by a
142 HW breakpoint triggering. */
143 int (*supports_stopped_by_hw_breakpoint
) (void);
145 /* Returns true if the target can do hardware single step. */
146 int (*supports_hardware_single_step
) (void);
148 /* Returns 1 if target was stopped due to a watchpoint hit, 0 otherwise. */
150 int (*stopped_by_watchpoint
) (void);
152 /* Returns the address associated with the watchpoint that hit, if any;
153 returns 0 otherwise. */
155 CORE_ADDR (*stopped_data_address
) (void);
157 /* Reports the text, data offsets of the executable. This is
158 needed for uclinux where the executable is relocated during load
161 int (*read_offsets
) (CORE_ADDR
*text
, CORE_ADDR
*data
);
163 /* Fetch the address associated with a specific thread local storage
164 area, determined by the specified THREAD, OFFSET, and LOAD_MODULE.
165 Stores it in *ADDRESS and returns zero on success; otherwise returns
166 an error code. A return value of -1 means this system does not
167 support the operation. */
169 int (*get_tls_address
) (struct thread_info
*thread
, CORE_ADDR offset
,
170 CORE_ADDR load_module
, CORE_ADDR
*address
);
172 /* Fill BUF with an hostio error packet representing the last hostio
174 void (*hostio_last_error
) (char *buf
);
176 /* Read/Write OS data using qXfer packets. */
177 int (*qxfer_osdata
) (const char *annex
, unsigned char *readbuf
,
178 unsigned const char *writebuf
, CORE_ADDR offset
,
181 /* Read/Write extra signal info. */
182 int (*qxfer_siginfo
) (const char *annex
, unsigned char *readbuf
,
183 unsigned const char *writebuf
,
184 CORE_ADDR offset
, int len
);
186 int (*supports_non_stop
) (void);
188 /* Enables async target events. Returns the previous enable
190 int (*async
) (int enable
);
192 /* Switch to non-stop (1) or all-stop (0) mode. Return 0 on
193 success, -1 otherwise. */
194 int (*start_non_stop
) (int);
196 /* Returns true if the target supports multi-process debugging. */
197 int (*supports_multi_process
) (void);
199 /* Returns true if fork events are supported. */
200 int (*supports_fork_events
) (void);
202 /* Returns true if vfork events are supported. */
203 int (*supports_vfork_events
) (void);
205 /* Returns true if exec events are supported. */
206 int (*supports_exec_events
) (void);
208 /* Allows target to re-initialize connection-specific settings. */
209 void (*handle_new_gdb_connection
) (void);
211 /* If not NULL, target-specific routine to process monitor command.
212 Returns 1 if handled, or 0 to perform default processing. */
213 int (*handle_monitor_command
) (char *);
215 /* Returns the core given a thread, or -1 if not known. */
216 int (*core_of_thread
) (ptid_t
);
218 /* Read loadmaps. Read LEN bytes at OFFSET into a buffer at MYADDR. */
219 int (*read_loadmap
) (const char *annex
, CORE_ADDR offset
,
220 unsigned char *myaddr
, unsigned int len
);
222 /* Target specific qSupported support. FEATURES is an array of
223 features with COUNT elements. */
224 void (*process_qsupported
) (char **features
, int count
);
226 /* Return 1 if the target supports tracepoints, 0 (or leave the
227 callback NULL) otherwise. */
228 int (*supports_tracepoints
) (void);
230 /* Read PC from REGCACHE. */
231 CORE_ADDR (*read_pc
) (struct regcache
*regcache
);
233 /* Write PC to REGCACHE. */
234 void (*write_pc
) (struct regcache
*regcache
, CORE_ADDR pc
);
236 /* Return true if THREAD is known to be stopped now. */
237 int (*thread_stopped
) (struct thread_info
*thread
);
239 /* Read Thread Information Block address. */
240 int (*get_tib_address
) (ptid_t ptid
, CORE_ADDR
*address
);
242 /* Pause all threads. If FREEZE, arrange for any resume attempt to
243 be ignored until an unpause_all call unfreezes threads again.
244 There can be nested calls to pause_all, so a freeze counter
245 should be maintained. */
246 void (*pause_all
) (int freeze
);
248 /* Unpause all threads. Threads that hadn't been resumed by the
249 client should be left stopped. Basically a pause/unpause call
250 pair should not end up resuming threads that were stopped before
252 void (*unpause_all
) (int unfreeze
);
254 /* Stabilize all threads. That is, force them out of jump pads. */
255 void (*stabilize_threads
) (void);
257 /* Install a fast tracepoint jump pad. TPOINT is the address of the
258 tracepoint internal object as used by the IPA agent. TPADDR is
259 the address of tracepoint. COLLECTOR is address of the function
260 the jump pad redirects to. LOCKADDR is the address of the jump
261 pad lock object. ORIG_SIZE is the size in bytes of the
262 instruction at TPADDR. JUMP_ENTRY points to the address of the
263 jump pad entry, and on return holds the address past the end of
264 the created jump pad. If a trampoline is created by the function,
265 then TRAMPOLINE and TRAMPOLINE_SIZE return the address and size of
266 the trampoline, else they remain unchanged. JJUMP_PAD_INSN is a
267 buffer containing a copy of the instruction at TPADDR.
268 ADJUST_INSN_ADDR and ADJUST_INSN_ADDR_END are output parameters that
269 return the address range where the instruction at TPADDR was relocated
270 to. If an error occurs, the ERR may be used to pass on an error
272 int (*install_fast_tracepoint_jump_pad
) (CORE_ADDR tpoint
, CORE_ADDR tpaddr
,
276 CORE_ADDR
*jump_entry
,
277 CORE_ADDR
*trampoline
,
278 ULONGEST
*trampoline_size
,
279 unsigned char *jjump_pad_insn
,
280 ULONGEST
*jjump_pad_insn_size
,
281 CORE_ADDR
*adjusted_insn_addr
,
282 CORE_ADDR
*adjusted_insn_addr_end
,
285 /* Return the bytecode operations vector for the current inferior.
286 Returns NULL if bytecode compilation is not supported. */
287 struct emit_ops
*(*emit_ops
) (void);
289 /* Returns true if the target supports disabling randomization. */
290 int (*supports_disable_randomization
) (void);
292 /* Return the minimum length of an instruction that can be safely overwritten
293 for use as a fast tracepoint. */
294 int (*get_min_fast_tracepoint_insn_len
) (void);
296 /* Read solib info on SVR4 platforms. */
297 int (*qxfer_libraries_svr4
) (const char *annex
, unsigned char *readbuf
,
298 unsigned const char *writebuf
,
299 CORE_ADDR offset
, int len
);
301 /* Return true if target supports debugging agent. */
302 int (*supports_agent
) (void);
304 /* Enable branch tracing for PTID based on CONF and allocate a branch trace
305 target information struct for reading and for disabling branch trace. */
306 struct btrace_target_info
*(*enable_btrace
)
307 (ptid_t ptid
, const struct btrace_config
*conf
);
309 /* Disable branch tracing.
310 Returns zero on success, non-zero otherwise. */
311 int (*disable_btrace
) (struct btrace_target_info
*tinfo
);
313 /* Read branch trace data into buffer.
314 Return 0 on success; print an error message into BUFFER and return -1,
316 int (*read_btrace
) (struct btrace_target_info
*, struct buffer
*,
317 enum btrace_read_type type
);
319 /* Read the branch trace configuration into BUFFER.
320 Return 0 on success; print an error message into BUFFER and return -1
322 int (*read_btrace_conf
) (const struct btrace_target_info
*, struct buffer
*);
324 /* Return true if target supports range stepping. */
325 int (*supports_range_stepping
) (void);
327 /* Return the full absolute name of the executable file that was
328 run to create the process PID. If the executable file cannot
329 be determined, NULL is returned. Otherwise, a pointer to a
330 character string containing the pathname is returned. This
331 string should be copied into a buffer by the client if the string
332 will not be immediately used, or if it must persist. */
333 char *(*pid_to_exec_file
) (int pid
);
335 /* Multiple-filesystem-aware open. Like open(2), but operating in
336 the filesystem as it appears to process PID. Systems where all
337 processes share a common filesystem should set this to NULL.
338 If NULL, the caller should fall back to open(2). */
339 int (*multifs_open
) (int pid
, const char *filename
,
340 int flags
, mode_t mode
);
342 /* Multiple-filesystem-aware unlink. Like unlink(2), but operates
343 in the filesystem as it appears to process PID. Systems where
344 all processes share a common filesystem should set this to NULL.
345 If NULL, the caller should fall back to unlink(2). */
346 int (*multifs_unlink
) (int pid
, const char *filename
);
348 /* Multiple-filesystem-aware readlink. Like readlink(2), but
349 operating in the filesystem as it appears to process PID.
350 Systems where all processes share a common filesystem should
351 set this to NULL. If NULL, the caller should fall back to
353 ssize_t (*multifs_readlink
) (int pid
, const char *filename
,
354 char *buf
, size_t bufsiz
);
356 /* Return the breakpoint kind for this target based on PC. The PCPTR is
357 adjusted to the real memory location in case a flag (e.g., the Thumb bit on
358 ARM) was present in the PC. */
359 int (*breakpoint_kind_from_pc
) (CORE_ADDR
*pcptr
);
361 /* Return the software breakpoint from KIND. KIND can have target
362 specific meaning like the Z0 kind parameter.
363 SIZE is set to the software breakpoint's length in memory. */
364 const gdb_byte
*(*sw_breakpoint_from_kind
) (int kind
, int *size
);
366 /* Return the thread's name, or NULL if the target is unable to determine it.
367 The returned value must not be freed by the caller. */
368 const char *(*thread_name
) (ptid_t thread
);
370 /* Return the breakpoint kind for this target based on the current
371 processor state (e.g. the current instruction mode on ARM) and the
372 PC. The PCPTR is adjusted to the real memory location in case a flag
373 (e.g., the Thumb bit on ARM) is present in the PC. */
374 int (*breakpoint_kind_from_current_state
) (CORE_ADDR
*pcptr
);
376 /* Returns true if the target can software single step. */
377 int (*supports_software_single_step
) (void);
379 /* Return 1 if the target supports catch syscall, 0 (or leave the
380 callback NULL) otherwise. */
381 int (*supports_catch_syscall
) (void);
383 /* Return tdesc index for IPA. */
384 int (*get_ipa_tdesc_idx
) (void);
386 /* Thread ID to (numeric) thread handle: Return true on success and
387 false for failure. Return pointer to thread handle via HANDLE
388 and the handle's length via HANDLE_LEN. */
389 bool (*thread_handle
) (ptid_t ptid
, gdb_byte
**handle
, int *handle_len
);
391 /* The object that will gradually replace this struct. */
399 virtual ~process_target () = default;
401 /* Start a new process.
403 PROGRAM is a path to the program to execute.
404 PROGRAM_ARGS is a standard NULL-terminated array of arguments,
405 to be passed to the inferior as ``argv'' (along with PROGRAM).
407 Returns the new PID on success, -1 on failure. Registers the new
408 process with the process list. */
409 virtual int create_inferior (const char *program
,
410 const std::vector
<char *> &program_args
) = 0;
412 /* Do additional setup after a new process is created, including
413 exec-wrapper completion. */
414 virtual void post_create_inferior ();
416 /* Attach to a running process.
418 PID is the process ID to attach to, specified by the user
421 Returns -1 if attaching is unsupported, 0 on success, and calls
422 error() otherwise. */
423 virtual int attach (unsigned long pid
) = 0;
425 /* Kill process PROC. Return -1 on failure, and 0 on success. */
426 virtual int kill (process_info
*proc
) = 0;
428 /* Detach from process PROC. Return -1 on failure, and 0 on
430 virtual int detach (process_info
*proc
) = 0;
432 /* The inferior process has died. Do what is right. */
433 virtual void mourn (process_info
*proc
) = 0;
435 /* Wait for process PID to exit. */
436 virtual void join (int pid
) = 0;
438 /* Return true iff the thread with process ID PID is alive. */
439 virtual bool thread_alive (ptid_t pid
) = 0;
441 /* Resume the inferior process. */
442 virtual void resume (thread_resume
*resume_info
, size_t n
) = 0;
444 /* Wait for the inferior process or thread to change state. Store
445 status through argument pointer STATUS.
447 PTID = -1 to wait for any pid to do something, PTID(pid,0,0) to
448 wait for any thread of process pid to do something. Return ptid
449 of child, or -1 in case of error; store status through argument
450 pointer STATUS. OPTIONS is a bit set of options defined as
451 TARGET_W* above. If options contains TARGET_WNOHANG and there's
452 no child stop to report, return is
453 null_ptid/TARGET_WAITKIND_IGNORE. */
454 virtual ptid_t
wait (ptid_t ptid
, target_waitstatus
*status
,
457 /* Fetch registers from the inferior process.
459 If REGNO is -1, fetch all registers; otherwise, fetch at least REGNO. */
460 virtual void fetch_registers (regcache
*regcache
, int regno
) = 0;
462 /* Store registers to the inferior process.
464 If REGNO is -1, store all registers; otherwise, store at least REGNO. */
465 virtual void store_registers (regcache
*regcache
, int regno
) = 0;
467 /* Prepare to read or write memory from the inferior process.
468 Targets use this to do what is necessary to get the state of the
469 inferior such that it is possible to access memory.
471 This should generally only be called from client facing routines,
472 such as gdb_read_memory/gdb_write_memory, or the GDB breakpoint
475 Like `read_memory' and `write_memory' below, returns 0 on success
476 and errno on failure. */
477 virtual int prepare_to_access_memory ();
479 /* Undo the effects of prepare_to_access_memory. */
480 virtual void done_accessing_memory ();
483 extern process_stratum_target
*the_target
;
485 void set_target_ops (process_stratum_target
*);
487 #define target_create_inferior(program, program_args) \
488 the_target->pt->create_inferior (program, program_args)
490 #define target_post_create_inferior() \
491 the_target->pt->post_create_inferior ()
493 #define myattach(pid) \
494 the_target->pt->attach (pid)
496 int kill_inferior (process_info
*proc
);
498 #define target_supports_fork_events() \
499 (the_target->supports_fork_events ? \
500 (*the_target->supports_fork_events) () : 0)
502 #define target_supports_vfork_events() \
503 (the_target->supports_vfork_events ? \
504 (*the_target->supports_vfork_events) () : 0)
506 #define target_supports_exec_events() \
507 (the_target->supports_exec_events ? \
508 (*the_target->supports_exec_events) () : 0)
510 #define target_handle_new_gdb_connection() \
513 if (the_target->handle_new_gdb_connection != NULL) \
514 (*the_target->handle_new_gdb_connection) (); \
517 #define detach_inferior(proc) \
518 the_target->pt->detach (proc)
520 #define mythread_alive(pid) \
521 the_target->pt->thread_alive (pid)
523 #define fetch_inferior_registers(regcache, regno) \
524 the_target->pt->fetch_registers (regcache, regno)
526 #define store_inferior_registers(regcache, regno) \
527 the_target->pt->store_registers (regcache, regno)
529 #define join_inferior(pid) \
530 the_target->pt->join (pid)
532 #define target_supports_non_stop() \
533 (the_target->supports_non_stop ? (*the_target->supports_non_stop ) () : 0)
535 #define target_async(enable) \
536 (the_target->async ? (*the_target->async) (enable) : 0)
538 #define target_process_qsupported(features, count) \
541 if (the_target->process_qsupported) \
542 the_target->process_qsupported (features, count); \
545 #define target_supports_catch_syscall() \
546 (the_target->supports_catch_syscall ? \
547 (*the_target->supports_catch_syscall) () : 0)
549 #define target_get_ipa_tdesc_idx() \
550 (the_target->get_ipa_tdesc_idx \
551 ? (*the_target->get_ipa_tdesc_idx) () : 0)
553 #define target_supports_tracepoints() \
554 (the_target->supports_tracepoints \
555 ? (*the_target->supports_tracepoints) () : 0)
557 #define target_supports_fast_tracepoints() \
558 (the_target->install_fast_tracepoint_jump_pad != NULL)
560 #define target_get_min_fast_tracepoint_insn_len() \
561 (the_target->get_min_fast_tracepoint_insn_len \
562 ? (*the_target->get_min_fast_tracepoint_insn_len) () : 0)
564 #define thread_stopped(thread) \
565 (*the_target->thread_stopped) (thread)
567 #define pause_all(freeze) \
570 if (the_target->pause_all) \
571 (*the_target->pause_all) (freeze); \
574 #define unpause_all(unfreeze) \
577 if (the_target->unpause_all) \
578 (*the_target->unpause_all) (unfreeze); \
581 #define stabilize_threads() \
584 if (the_target->stabilize_threads) \
585 (*the_target->stabilize_threads) (); \
588 #define install_fast_tracepoint_jump_pad(tpoint, tpaddr, \
589 collector, lockaddr, \
592 trampoline, trampoline_size, \
594 jjump_pad_insn_size, \
595 adjusted_insn_addr, \
596 adjusted_insn_addr_end, \
598 (*the_target->install_fast_tracepoint_jump_pad) (tpoint, tpaddr, \
599 collector,lockaddr, \
600 orig_size, jump_entry, \
604 jjump_pad_insn_size, \
605 adjusted_insn_addr, \
606 adjusted_insn_addr_end, \
609 #define target_emit_ops() \
610 (the_target->emit_ops ? (*the_target->emit_ops) () : NULL)
612 #define target_supports_disable_randomization() \
613 (the_target->supports_disable_randomization ? \
614 (*the_target->supports_disable_randomization) () : 0)
616 #define target_supports_agent() \
617 (the_target->supports_agent ? \
618 (*the_target->supports_agent) () : 0)
620 static inline struct btrace_target_info
*
621 target_enable_btrace (ptid_t ptid
, const struct btrace_config
*conf
)
623 if (the_target
->enable_btrace
== nullptr)
624 error (_("Target does not support branch tracing."));
626 return (*the_target
->enable_btrace
) (ptid
, conf
);
630 target_disable_btrace (struct btrace_target_info
*tinfo
)
632 if (the_target
->disable_btrace
== nullptr)
633 error (_("Target does not support branch tracing."));
635 return (*the_target
->disable_btrace
) (tinfo
);
639 target_read_btrace (struct btrace_target_info
*tinfo
,
640 struct buffer
*buffer
,
641 enum btrace_read_type type
)
643 if (the_target
->read_btrace
== nullptr)
644 error (_("Target does not support branch tracing."));
646 return (*the_target
->read_btrace
) (tinfo
, buffer
, type
);
650 target_read_btrace_conf (struct btrace_target_info
*tinfo
,
651 struct buffer
*buffer
)
653 if (the_target
->read_btrace_conf
== nullptr)
654 error (_("Target does not support branch tracing."));
656 return (*the_target
->read_btrace_conf
) (tinfo
, buffer
);
659 #define target_supports_range_stepping() \
660 (the_target->supports_range_stepping ? \
661 (*the_target->supports_range_stepping) () : 0)
663 #define target_supports_stopped_by_sw_breakpoint() \
664 (the_target->supports_stopped_by_sw_breakpoint ? \
665 (*the_target->supports_stopped_by_sw_breakpoint) () : 0)
667 #define target_stopped_by_sw_breakpoint() \
668 (the_target->stopped_by_sw_breakpoint ? \
669 (*the_target->stopped_by_sw_breakpoint) () : 0)
671 #define target_supports_stopped_by_hw_breakpoint() \
672 (the_target->supports_stopped_by_hw_breakpoint ? \
673 (*the_target->supports_stopped_by_hw_breakpoint) () : 0)
675 #define target_supports_hardware_single_step() \
676 (the_target->supports_hardware_single_step ? \
677 (*the_target->supports_hardware_single_step) () : 0)
679 #define target_stopped_by_hw_breakpoint() \
680 (the_target->stopped_by_hw_breakpoint ? \
681 (*the_target->stopped_by_hw_breakpoint) () : 0)
683 #define target_breakpoint_kind_from_pc(pcptr) \
684 (the_target->breakpoint_kind_from_pc \
685 ? (*the_target->breakpoint_kind_from_pc) (pcptr) \
686 : default_breakpoint_kind_from_pc (pcptr))
688 #define target_breakpoint_kind_from_current_state(pcptr) \
689 (the_target->breakpoint_kind_from_current_state \
690 ? (*the_target->breakpoint_kind_from_current_state) (pcptr) \
691 : target_breakpoint_kind_from_pc (pcptr))
693 #define target_supports_software_single_step() \
694 (the_target->supports_software_single_step ? \
695 (*the_target->supports_software_single_step) () : 0)
697 /* Start non-stop mode, returns 0 on success, -1 on failure. */
699 int start_non_stop (int nonstop
);
701 ptid_t
mywait (ptid_t ptid
, struct target_waitstatus
*ourstatus
, int options
,
704 /* Prepare to read or write memory from the inferior process. See the
705 corresponding process_stratum_target methods for more details. */
707 int prepare_to_access_memory (void);
708 void done_accessing_memory (void);
710 #define target_core_of_thread(ptid) \
711 (the_target->core_of_thread ? (*the_target->core_of_thread) (ptid) \
714 #define target_thread_name(ptid) \
715 (the_target->thread_name ? (*the_target->thread_name) (ptid) \
718 #define target_thread_handle(ptid, handle, handle_len) \
719 (the_target->thread_handle ? (*the_target->thread_handle) \
720 (ptid, handle, handle_len) \
723 int read_inferior_memory (CORE_ADDR memaddr
, unsigned char *myaddr
, int len
);
725 int set_desired_thread ();
727 const char *target_pid_to_str (ptid_t
);
729 int target_can_do_hardware_single_step (void);
731 int default_breakpoint_kind_from_pc (CORE_ADDR
*pcptr
);
733 #endif /* GDBSERVER_TARGET_H */