Commit | Line | Data |
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ce3a066d | 1 | /* Target operations for the remote server for GDB. |
b811d2c2 | 2 | Copyright (C) 2002-2020 Free Software Foundation, Inc. |
ce3a066d DJ |
3 | |
4 | Contributed by MontaVista Software. | |
5 | ||
6 | This file is part of GDB. | |
7 | ||
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 | |
a9762ec7 | 10 | the Free Software Foundation; either version 3 of the License, or |
ce3a066d DJ |
11 | (at your option) any later version. |
12 | ||
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. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
a9762ec7 | 19 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
ce3a066d | 20 | |
1a5c2598 TT |
21 | #ifndef GDBSERVER_TARGET_H |
22 | #define GDBSERVER_TARGET_H | |
ce3a066d | 23 | |
37ce4055 | 24 | #include <sys/types.h> /* for mode_t */ |
721ec300 | 25 | #include "target/target.h" |
33b60d58 LM |
26 | #include "target/resume.h" |
27 | #include "target/wait.h" | |
28 | #include "target/waitstatus.h" | |
802e8e6d | 29 | #include "mem-break.h" |
268a13a5 | 30 | #include "gdbsupport/btrace-common.h" |
2090129c | 31 | #include <vector> |
3360c0bf | 32 | |
6a271cae | 33 | struct emit_ops; |
9accd112 | 34 | struct buffer; |
6a6bbd9d | 35 | struct process_info; |
6a271cae | 36 | |
2bd7c093 PA |
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 | |
40 | array. */ | |
64386c31 DJ |
41 | |
42 | struct thread_resume | |
43 | { | |
95954743 | 44 | ptid_t thread; |
64386c31 | 45 | |
bd99dc85 PA |
46 | /* How to "resume". */ |
47 | enum resume_kind kind; | |
64386c31 | 48 | |
bd99dc85 PA |
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 | |
30d50328 | 52 | linux; SuspendThread on win32). This is a host signal value (not |
2ea28649 | 53 | enum gdb_signal). */ |
64386c31 | 54 | int sig; |
c2d6af84 PA |
55 | |
56 | /* Range to single step within. Valid only iff KIND is resume_step. | |
57 | ||
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 | |
61 | request.) */ | |
62 | CORE_ADDR step_range_start; /* Inclusive */ | |
63 | CORE_ADDR step_range_end; /* Exclusive */ | |
64386c31 DJ |
64 | }; |
65 | ||
5ef9273d TBA |
66 | class process_target; |
67 | ||
5b6d1e4f PA |
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 | |
70 | shared code. */ | |
71 | struct process_stratum_target | |
ce3a066d | 72 | { |
5b1c542e | 73 | /* Wait for the inferior process or thread to change state. Store |
95954743 PA |
74 | status through argument pointer STATUS. |
75 | ||
76 | PTID = -1 to wait for any pid to do something, PTID(pid,0,0) to | |
77 | wait for any thread of process pid to do something. Return ptid | |
78 | of child, or -1 in case of error; store status through argument | |
79 | pointer STATUS. OPTIONS is a bit set of options defined as | |
80 | TARGET_W* above. If options contains TARGET_WNOHANG and there's | |
81 | no child stop to report, return is | |
82 | null_ptid/TARGET_WAITKIND_IGNORE. */ | |
ce3a066d | 83 | |
95954743 | 84 | ptid_t (*wait) (ptid_t ptid, struct target_waitstatus *status, int options); |
ce3a066d DJ |
85 | |
86 | /* Fetch registers from the inferior process. | |
87 | ||
88 | If REGNO is -1, fetch all registers; otherwise, fetch at least REGNO. */ | |
89 | ||
442ea881 | 90 | void (*fetch_registers) (struct regcache *regcache, int regno); |
aa691b87 | 91 | |
ce3a066d DJ |
92 | /* Store registers to the inferior process. |
93 | ||
94 | If REGNO is -1, store all registers; otherwise, store at least REGNO. */ | |
95 | ||
442ea881 | 96 | void (*store_registers) (struct regcache *regcache, int regno); |
ce3a066d | 97 | |
90d74c30 PA |
98 | /* Prepare to read or write memory from the inferior process. |
99 | Targets use this to do what is necessary to get the state of the | |
100 | inferior such that it is possible to access memory. | |
101 | ||
102 | This should generally only be called from client facing routines, | |
802e8e6d PA |
103 | such as gdb_read_memory/gdb_write_memory, or the GDB breakpoint |
104 | insertion routine. | |
90d74c30 PA |
105 | |
106 | Like `read_memory' and `write_memory' below, returns 0 on success | |
107 | and errno on failure. */ | |
108 | ||
109 | int (*prepare_to_access_memory) (void); | |
110 | ||
111 | /* Undo the effects of prepare_to_access_memory. */ | |
112 | ||
0146f85b | 113 | void (*done_accessing_memory) (void); |
90d74c30 | 114 | |
611cb4a5 DJ |
115 | /* Read memory from the inferior process. This should generally be |
116 | called through read_inferior_memory, which handles breakpoint shadowing. | |
ce3a066d | 117 | |
c3e735a6 DJ |
118 | Read LEN bytes at MEMADDR into a buffer at MYADDR. |
119 | ||
120 | Returns 0 on success and errno on failure. */ | |
ce3a066d | 121 | |
f450004a | 122 | int (*read_memory) (CORE_ADDR memaddr, unsigned char *myaddr, int len); |
ce3a066d | 123 | |
611cb4a5 | 124 | /* Write memory to the inferior process. This should generally be |
4196ab2a | 125 | called through target_write_memory, which handles breakpoint shadowing. |
ce3a066d DJ |
126 | |
127 | Write LEN bytes from the buffer at MYADDR to MEMADDR. | |
128 | ||
129 | Returns 0 on success and errno on failure. */ | |
130 | ||
f450004a DJ |
131 | int (*write_memory) (CORE_ADDR memaddr, const unsigned char *myaddr, |
132 | int len); | |
2f2893d9 DJ |
133 | |
134 | /* Query GDB for the values of any symbols we're interested in. | |
135 | This function is called whenever we receive a "qSymbols::" | |
136 | query, which corresponds to every time more symbols (might) | |
611cb4a5 DJ |
137 | become available. NULL if we aren't interested in any |
138 | symbols. */ | |
2f2893d9 DJ |
139 | |
140 | void (*look_up_symbols) (void); | |
e5379b03 | 141 | |
ef57601b PA |
142 | /* Send an interrupt request to the inferior process, |
143 | however is appropriate. */ | |
144 | ||
145 | void (*request_interrupt) (void); | |
aa691b87 RM |
146 | |
147 | /* Read auxiliary vector data from the inferior process. | |
148 | ||
149 | Read LEN bytes at OFFSET into a buffer at MYADDR. */ | |
150 | ||
f450004a DJ |
151 | int (*read_auxv) (CORE_ADDR offset, unsigned char *myaddr, |
152 | unsigned int len); | |
e013ee27 | 153 | |
802e8e6d PA |
154 | /* Returns true if GDB Z breakpoint type TYPE is supported, false |
155 | otherwise. The type is coded as follows: | |
c6314022 AR |
156 | '0' - software-breakpoint |
157 | '1' - hardware-breakpoint | |
158 | '2' - write watchpoint | |
159 | '3' - read watchpoint | |
802e8e6d PA |
160 | '4' - access watchpoint |
161 | */ | |
162 | int (*supports_z_point_type) (char z_type); | |
163 | ||
164 | /* Insert and remove a break or watchpoint. | |
165 | Returns 0 on success, -1 on failure and 1 on unsupported. */ | |
e013ee27 | 166 | |
802e8e6d PA |
167 | int (*insert_point) (enum raw_bkpt_type type, CORE_ADDR addr, |
168 | int size, struct raw_breakpoint *bp); | |
169 | int (*remove_point) (enum raw_bkpt_type type, CORE_ADDR addr, | |
170 | int size, struct raw_breakpoint *bp); | |
e013ee27 | 171 | |
1ec68e26 PA |
172 | /* Returns 1 if the target stopped because it executed a software |
173 | breakpoint instruction, 0 otherwise. */ | |
174 | int (*stopped_by_sw_breakpoint) (void); | |
175 | ||
176 | /* Returns true if the target knows whether a trap was caused by a | |
177 | SW breakpoint triggering. */ | |
178 | int (*supports_stopped_by_sw_breakpoint) (void); | |
179 | ||
180 | /* Returns 1 if the target stopped for a hardware breakpoint. */ | |
181 | int (*stopped_by_hw_breakpoint) (void); | |
182 | ||
183 | /* Returns true if the target knows whether a trap was caused by a | |
184 | HW breakpoint triggering. */ | |
185 | int (*supports_stopped_by_hw_breakpoint) (void); | |
186 | ||
70b90b91 YQ |
187 | /* Returns true if the target can do hardware single step. */ |
188 | int (*supports_hardware_single_step) (void); | |
45614f15 | 189 | |
e013ee27 OF |
190 | /* Returns 1 if target was stopped due to a watchpoint hit, 0 otherwise. */ |
191 | ||
192 | int (*stopped_by_watchpoint) (void); | |
193 | ||
1b3f6016 | 194 | /* Returns the address associated with the watchpoint that hit, if any; |
e013ee27 OF |
195 | returns 0 otherwise. */ |
196 | ||
197 | CORE_ADDR (*stopped_data_address) (void); | |
198 | ||
52fb6437 NS |
199 | /* Reports the text, data offsets of the executable. This is |
200 | needed for uclinux where the executable is relocated during load | |
201 | time. */ | |
1b3f6016 | 202 | |
52fb6437 | 203 | int (*read_offsets) (CORE_ADDR *text, CORE_ADDR *data); |
dae5f5cf DJ |
204 | |
205 | /* Fetch the address associated with a specific thread local storage | |
206 | area, determined by the specified THREAD, OFFSET, and LOAD_MODULE. | |
207 | Stores it in *ADDRESS and returns zero on success; otherwise returns | |
208 | an error code. A return value of -1 means this system does not | |
209 | support the operation. */ | |
210 | ||
211 | int (*get_tls_address) (struct thread_info *thread, CORE_ADDR offset, | |
212 | CORE_ADDR load_module, CORE_ADDR *address); | |
23181151 | 213 | |
59a016f0 PA |
214 | /* Fill BUF with an hostio error packet representing the last hostio |
215 | error. */ | |
216 | void (*hostio_last_error) (char *buf); | |
07e059b5 VP |
217 | |
218 | /* Read/Write OS data using qXfer packets. */ | |
219 | int (*qxfer_osdata) (const char *annex, unsigned char *readbuf, | |
1b3f6016 | 220 | unsigned const char *writebuf, CORE_ADDR offset, |
07e059b5 | 221 | int len); |
4aa995e1 PA |
222 | |
223 | /* Read/Write extra signal info. */ | |
224 | int (*qxfer_siginfo) (const char *annex, unsigned char *readbuf, | |
225 | unsigned const char *writebuf, | |
226 | CORE_ADDR offset, int len); | |
bd99dc85 PA |
227 | |
228 | int (*supports_non_stop) (void); | |
229 | ||
230 | /* Enables async target events. Returns the previous enable | |
231 | state. */ | |
232 | int (*async) (int enable); | |
233 | ||
234 | /* Switch to non-stop (1) or all-stop (0) mode. Return 0 on | |
235 | success, -1 otherwise. */ | |
236 | int (*start_non_stop) (int); | |
cf8fd78b PA |
237 | |
238 | /* Returns true if the target supports multi-process debugging. */ | |
239 | int (*supports_multi_process) (void); | |
cdbfd419 | 240 | |
89245bc0 DB |
241 | /* Returns true if fork events are supported. */ |
242 | int (*supports_fork_events) (void); | |
243 | ||
244 | /* Returns true if vfork events are supported. */ | |
245 | int (*supports_vfork_events) (void); | |
246 | ||
94585166 DB |
247 | /* Returns true if exec events are supported. */ |
248 | int (*supports_exec_events) (void); | |
249 | ||
de0d863e DB |
250 | /* Allows target to re-initialize connection-specific settings. */ |
251 | void (*handle_new_gdb_connection) (void); | |
252 | ||
cdbfd419 PP |
253 | /* If not NULL, target-specific routine to process monitor command. |
254 | Returns 1 if handled, or 0 to perform default processing. */ | |
255 | int (*handle_monitor_command) (char *); | |
dc146f7c VP |
256 | |
257 | /* Returns the core given a thread, or -1 if not known. */ | |
258 | int (*core_of_thread) (ptid_t); | |
1570b33e | 259 | |
78d85199 YQ |
260 | /* Read loadmaps. Read LEN bytes at OFFSET into a buffer at MYADDR. */ |
261 | int (*read_loadmap) (const char *annex, CORE_ADDR offset, | |
881127c9 | 262 | unsigned char *myaddr, unsigned int len); |
78d85199 | 263 | |
06e03fff PA |
264 | /* Target specific qSupported support. FEATURES is an array of |
265 | features with COUNT elements. */ | |
266 | void (*process_qsupported) (char **features, int count); | |
219f2f23 PA |
267 | |
268 | /* Return 1 if the target supports tracepoints, 0 (or leave the | |
269 | callback NULL) otherwise. */ | |
270 | int (*supports_tracepoints) (void); | |
271 | ||
272 | /* Read PC from REGCACHE. */ | |
273 | CORE_ADDR (*read_pc) (struct regcache *regcache); | |
274 | ||
275 | /* Write PC to REGCACHE. */ | |
276 | void (*write_pc) (struct regcache *regcache, CORE_ADDR pc); | |
8336d594 PA |
277 | |
278 | /* Return true if THREAD is known to be stopped now. */ | |
279 | int (*thread_stopped) (struct thread_info *thread); | |
280 | ||
711e434b PM |
281 | /* Read Thread Information Block address. */ |
282 | int (*get_tib_address) (ptid_t ptid, CORE_ADDR *address); | |
7984d532 | 283 | |
609086b1 | 284 | /* Pause all threads. If FREEZE, arrange for any resume attempt to |
7984d532 PA |
285 | be ignored until an unpause_all call unfreezes threads again. |
286 | There can be nested calls to pause_all, so a freeze counter | |
287 | should be maintained. */ | |
288 | void (*pause_all) (int freeze); | |
289 | ||
290 | /* Unpause all threads. Threads that hadn't been resumed by the | |
291 | client should be left stopped. Basically a pause/unpause call | |
292 | pair should not end up resuming threads that were stopped before | |
293 | the pause call. */ | |
294 | void (*unpause_all) (int unfreeze); | |
295 | ||
fa593d66 PA |
296 | /* Stabilize all threads. That is, force them out of jump pads. */ |
297 | void (*stabilize_threads) (void); | |
298 | ||
299 | /* Install a fast tracepoint jump pad. TPOINT is the address of the | |
300 | tracepoint internal object as used by the IPA agent. TPADDR is | |
301 | the address of tracepoint. COLLECTOR is address of the function | |
302 | the jump pad redirects to. LOCKADDR is the address of the jump | |
303 | pad lock object. ORIG_SIZE is the size in bytes of the | |
304 | instruction at TPADDR. JUMP_ENTRY points to the address of the | |
305 | jump pad entry, and on return holds the address past the end of | |
405f8e94 SS |
306 | the created jump pad. If a trampoline is created by the function, |
307 | then TRAMPOLINE and TRAMPOLINE_SIZE return the address and size of | |
308 | the trampoline, else they remain unchanged. JJUMP_PAD_INSN is a | |
309 | buffer containing a copy of the instruction at TPADDR. | |
310 | ADJUST_INSN_ADDR and ADJUST_INSN_ADDR_END are output parameters that | |
311 | return the address range where the instruction at TPADDR was relocated | |
312 | to. If an error occurs, the ERR may be used to pass on an error | |
313 | message. */ | |
fa593d66 PA |
314 | int (*install_fast_tracepoint_jump_pad) (CORE_ADDR tpoint, CORE_ADDR tpaddr, |
315 | CORE_ADDR collector, | |
316 | CORE_ADDR lockaddr, | |
317 | ULONGEST orig_size, | |
318 | CORE_ADDR *jump_entry, | |
405f8e94 SS |
319 | CORE_ADDR *trampoline, |
320 | ULONGEST *trampoline_size, | |
fa593d66 PA |
321 | unsigned char *jjump_pad_insn, |
322 | ULONGEST *jjump_pad_insn_size, | |
323 | CORE_ADDR *adjusted_insn_addr, | |
405f8e94 SS |
324 | CORE_ADDR *adjusted_insn_addr_end, |
325 | char *err); | |
6a271cae PA |
326 | |
327 | /* Return the bytecode operations vector for the current inferior. | |
328 | Returns NULL if bytecode compilation is not supported. */ | |
329 | struct emit_ops *(*emit_ops) (void); | |
03583c20 UW |
330 | |
331 | /* Returns true if the target supports disabling randomization. */ | |
332 | int (*supports_disable_randomization) (void); | |
405f8e94 SS |
333 | |
334 | /* Return the minimum length of an instruction that can be safely overwritten | |
335 | for use as a fast tracepoint. */ | |
336 | int (*get_min_fast_tracepoint_insn_len) (void); | |
2268b414 JK |
337 | |
338 | /* Read solib info on SVR4 platforms. */ | |
339 | int (*qxfer_libraries_svr4) (const char *annex, unsigned char *readbuf, | |
340 | unsigned const char *writebuf, | |
341 | CORE_ADDR offset, int len); | |
d1feda86 YQ |
342 | |
343 | /* Return true if target supports debugging agent. */ | |
344 | int (*supports_agent) (void); | |
9accd112 | 345 | |
f4abbc16 MM |
346 | /* Enable branch tracing for PTID based on CONF and allocate a branch trace |
347 | target information struct for reading and for disabling branch trace. */ | |
348 | struct btrace_target_info *(*enable_btrace) | |
349 | (ptid_t ptid, const struct btrace_config *conf); | |
9accd112 | 350 | |
969c39fb MM |
351 | /* Disable branch tracing. |
352 | Returns zero on success, non-zero otherwise. */ | |
9accd112 MM |
353 | int (*disable_btrace) (struct btrace_target_info *tinfo); |
354 | ||
add67df8 | 355 | /* Read branch trace data into buffer. |
969c39fb MM |
356 | Return 0 on success; print an error message into BUFFER and return -1, |
357 | otherwise. */ | |
add67df8 PA |
358 | int (*read_btrace) (struct btrace_target_info *, struct buffer *, |
359 | enum btrace_read_type type); | |
9accd112 | 360 | |
f4abbc16 MM |
361 | /* Read the branch trace configuration into BUFFER. |
362 | Return 0 on success; print an error message into BUFFER and return -1 | |
363 | otherwise. */ | |
364 | int (*read_btrace_conf) (const struct btrace_target_info *, struct buffer *); | |
365 | ||
c2d6af84 PA |
366 | /* Return true if target supports range stepping. */ |
367 | int (*supports_range_stepping) (void); | |
e57f1de3 GB |
368 | |
369 | /* Return the full absolute name of the executable file that was | |
370 | run to create the process PID. If the executable file cannot | |
371 | be determined, NULL is returned. Otherwise, a pointer to a | |
372 | character string containing the pathname is returned. This | |
373 | string should be copied into a buffer by the client if the string | |
374 | will not be immediately used, or if it must persist. */ | |
375 | char *(*pid_to_exec_file) (int pid); | |
14d2069a GB |
376 | |
377 | /* Multiple-filesystem-aware open. Like open(2), but operating in | |
378 | the filesystem as it appears to process PID. Systems where all | |
379 | processes share a common filesystem should set this to NULL. | |
380 | If NULL, the caller should fall back to open(2). */ | |
381 | int (*multifs_open) (int pid, const char *filename, | |
382 | int flags, mode_t mode); | |
383 | ||
384 | /* Multiple-filesystem-aware unlink. Like unlink(2), but operates | |
385 | in the filesystem as it appears to process PID. Systems where | |
386 | all processes share a common filesystem should set this to NULL. | |
387 | If NULL, the caller should fall back to unlink(2). */ | |
388 | int (*multifs_unlink) (int pid, const char *filename); | |
389 | ||
390 | /* Multiple-filesystem-aware readlink. Like readlink(2), but | |
391 | operating in the filesystem as it appears to process PID. | |
392 | Systems where all processes share a common filesystem should | |
393 | set this to NULL. If NULL, the caller should fall back to | |
394 | readlink(2). */ | |
395 | ssize_t (*multifs_readlink) (int pid, const char *filename, | |
396 | char *buf, size_t bufsiz); | |
dd373349 AT |
397 | |
398 | /* Return the breakpoint kind for this target based on PC. The PCPTR is | |
399 | adjusted to the real memory location in case a flag (e.g., the Thumb bit on | |
400 | ARM) was present in the PC. */ | |
401 | int (*breakpoint_kind_from_pc) (CORE_ADDR *pcptr); | |
402 | ||
403 | /* Return the software breakpoint from KIND. KIND can have target | |
404 | specific meaning like the Z0 kind parameter. | |
405 | SIZE is set to the software breakpoint's length in memory. */ | |
406 | const gdb_byte *(*sw_breakpoint_from_kind) (int kind, int *size); | |
79efa585 SM |
407 | |
408 | /* Return the thread's name, or NULL if the target is unable to determine it. | |
409 | The returned value must not be freed by the caller. */ | |
410 | const char *(*thread_name) (ptid_t thread); | |
769ef81f AT |
411 | |
412 | /* Return the breakpoint kind for this target based on the current | |
413 | processor state (e.g. the current instruction mode on ARM) and the | |
414 | PC. The PCPTR is adjusted to the real memory location in case a flag | |
415 | (e.g., the Thumb bit on ARM) is present in the PC. */ | |
416 | int (*breakpoint_kind_from_current_state) (CORE_ADDR *pcptr); | |
7d00775e AT |
417 | |
418 | /* Returns true if the target can software single step. */ | |
419 | int (*supports_software_single_step) (void); | |
82075af2 JS |
420 | |
421 | /* Return 1 if the target supports catch syscall, 0 (or leave the | |
422 | callback NULL) otherwise. */ | |
423 | int (*supports_catch_syscall) (void); | |
ae91f625 MK |
424 | |
425 | /* Return tdesc index for IPA. */ | |
426 | int (*get_ipa_tdesc_idx) (void); | |
f6327dcb KB |
427 | |
428 | /* Thread ID to (numeric) thread handle: Return true on success and | |
429 | false for failure. Return pointer to thread handle via HANDLE | |
430 | and the handle's length via HANDLE_LEN. */ | |
431 | bool (*thread_handle) (ptid_t ptid, gdb_byte **handle, int *handle_len); | |
5ef9273d TBA |
432 | |
433 | /* The object that will gradually replace this struct. */ | |
434 | process_target *pt; | |
435 | }; | |
436 | ||
437 | class process_target | |
438 | { | |
439 | public: | |
440 | ||
441 | virtual ~process_target () = default; | |
15295543 TBA |
442 | |
443 | /* Start a new process. | |
444 | ||
445 | PROGRAM is a path to the program to execute. | |
446 | PROGRAM_ARGS is a standard NULL-terminated array of arguments, | |
447 | to be passed to the inferior as ``argv'' (along with PROGRAM). | |
448 | ||
449 | Returns the new PID on success, -1 on failure. Registers the new | |
450 | process with the process list. */ | |
451 | virtual int create_inferior (const char *program, | |
452 | const std::vector<char *> &program_args) = 0; | |
6dee9afb TBA |
453 | |
454 | /* Do additional setup after a new process is created, including | |
455 | exec-wrapper completion. */ | |
456 | virtual void post_create_inferior (); | |
ef03dad8 TBA |
457 | |
458 | /* Attach to a running process. | |
459 | ||
460 | PID is the process ID to attach to, specified by the user | |
461 | or a higher layer. | |
462 | ||
463 | Returns -1 if attaching is unsupported, 0 on success, and calls | |
464 | error() otherwise. */ | |
465 | virtual int attach (unsigned long pid) = 0; | |
c6885a57 TBA |
466 | |
467 | /* Kill process PROC. Return -1 on failure, and 0 on success. */ | |
468 | virtual int kill (process_info *proc) = 0; | |
9061c9cf TBA |
469 | |
470 | /* Detach from process PROC. Return -1 on failure, and 0 on | |
471 | success. */ | |
472 | virtual int detach (process_info *proc) = 0; | |
8adb37b9 TBA |
473 | |
474 | /* The inferior process has died. Do what is right. */ | |
475 | virtual void mourn (process_info *proc) = 0; | |
95a49a39 TBA |
476 | |
477 | /* Wait for process PID to exit. */ | |
478 | virtual void join (int pid) = 0; | |
13d3d99b TBA |
479 | |
480 | /* Return true iff the thread with process ID PID is alive. */ | |
481 | virtual bool thread_alive (ptid_t pid) = 0; | |
0e4d7e35 TBA |
482 | |
483 | /* Resume the inferior process. */ | |
484 | virtual void resume (thread_resume *resume_info, size_t n) = 0; | |
ce3a066d DJ |
485 | }; |
486 | ||
5b6d1e4f | 487 | extern process_stratum_target *the_target; |
ce3a066d | 488 | |
5b6d1e4f | 489 | void set_target_ops (process_stratum_target *); |
ce3a066d | 490 | |
15295543 TBA |
491 | #define target_create_inferior(program, program_args) \ |
492 | the_target->pt->create_inferior (program, program_args) | |
ce3a066d | 493 | |
ece66d65 | 494 | #define target_post_create_inferior() \ |
6dee9afb | 495 | the_target->pt->post_create_inferior () |
c06cbd92 | 496 | |
ce3a066d | 497 | #define myattach(pid) \ |
ef03dad8 | 498 | the_target->pt->attach (pid) |
ce3a066d | 499 | |
a780ef4f | 500 | int kill_inferior (process_info *proc); |
ce3a066d | 501 | |
89245bc0 DB |
502 | #define target_supports_fork_events() \ |
503 | (the_target->supports_fork_events ? \ | |
504 | (*the_target->supports_fork_events) () : 0) | |
505 | ||
506 | #define target_supports_vfork_events() \ | |
507 | (the_target->supports_vfork_events ? \ | |
508 | (*the_target->supports_vfork_events) () : 0) | |
509 | ||
94585166 DB |
510 | #define target_supports_exec_events() \ |
511 | (the_target->supports_exec_events ? \ | |
512 | (*the_target->supports_exec_events) () : 0) | |
513 | ||
452003ef PA |
514 | #define target_handle_new_gdb_connection() \ |
515 | do \ | |
516 | { \ | |
517 | if (the_target->handle_new_gdb_connection != NULL) \ | |
518 | (*the_target->handle_new_gdb_connection) (); \ | |
519 | } while (0) | |
de0d863e | 520 | |
ef2ddb33 | 521 | #define detach_inferior(proc) \ |
9061c9cf | 522 | the_target->pt->detach (proc) |
6ad8ae5c | 523 | |
ce3a066d | 524 | #define mythread_alive(pid) \ |
13d3d99b | 525 | the_target->pt->thread_alive (pid) |
ce3a066d | 526 | |
442ea881 PA |
527 | #define fetch_inferior_registers(regcache, regno) \ |
528 | (*the_target->fetch_registers) (regcache, regno) | |
ce3a066d | 529 | |
442ea881 PA |
530 | #define store_inferior_registers(regcache, regno) \ |
531 | (*the_target->store_registers) (regcache, regno) | |
ce3a066d | 532 | |
d105de22 | 533 | #define join_inferior(pid) \ |
95a49a39 | 534 | the_target->pt->join (pid) |
444d6139 | 535 | |
bd99dc85 PA |
536 | #define target_supports_non_stop() \ |
537 | (the_target->supports_non_stop ? (*the_target->supports_non_stop ) () : 0) | |
538 | ||
539 | #define target_async(enable) \ | |
540 | (the_target->async ? (*the_target->async) (enable) : 0) | |
541 | ||
06e03fff | 542 | #define target_process_qsupported(features, count) \ |
8336d594 PA |
543 | do \ |
544 | { \ | |
545 | if (the_target->process_qsupported) \ | |
06e03fff | 546 | the_target->process_qsupported (features, count); \ |
8336d594 | 547 | } while (0) |
1570b33e | 548 | |
82075af2 JS |
549 | #define target_supports_catch_syscall() \ |
550 | (the_target->supports_catch_syscall ? \ | |
551 | (*the_target->supports_catch_syscall) () : 0) | |
552 | ||
ae91f625 MK |
553 | #define target_get_ipa_tdesc_idx() \ |
554 | (the_target->get_ipa_tdesc_idx \ | |
555 | ? (*the_target->get_ipa_tdesc_idx) () : 0) | |
556 | ||
219f2f23 PA |
557 | #define target_supports_tracepoints() \ |
558 | (the_target->supports_tracepoints \ | |
559 | ? (*the_target->supports_tracepoints) () : 0) | |
560 | ||
fa593d66 PA |
561 | #define target_supports_fast_tracepoints() \ |
562 | (the_target->install_fast_tracepoint_jump_pad != NULL) | |
563 | ||
405f8e94 SS |
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) | |
567 | ||
8336d594 PA |
568 | #define thread_stopped(thread) \ |
569 | (*the_target->thread_stopped) (thread) | |
570 | ||
7984d532 PA |
571 | #define pause_all(freeze) \ |
572 | do \ | |
573 | { \ | |
574 | if (the_target->pause_all) \ | |
575 | (*the_target->pause_all) (freeze); \ | |
576 | } while (0) | |
577 | ||
578 | #define unpause_all(unfreeze) \ | |
579 | do \ | |
580 | { \ | |
581 | if (the_target->unpause_all) \ | |
582 | (*the_target->unpause_all) (unfreeze); \ | |
583 | } while (0) | |
584 | ||
fa593d66 PA |
585 | #define stabilize_threads() \ |
586 | do \ | |
587 | { \ | |
588 | if (the_target->stabilize_threads) \ | |
589 | (*the_target->stabilize_threads) (); \ | |
590 | } while (0) | |
591 | ||
592 | #define install_fast_tracepoint_jump_pad(tpoint, tpaddr, \ | |
593 | collector, lockaddr, \ | |
594 | orig_size, \ | |
405f8e94 SS |
595 | jump_entry, \ |
596 | trampoline, trampoline_size, \ | |
597 | jjump_pad_insn, \ | |
fa593d66 PA |
598 | jjump_pad_insn_size, \ |
599 | adjusted_insn_addr, \ | |
405f8e94 SS |
600 | adjusted_insn_addr_end, \ |
601 | err) \ | |
fa593d66 PA |
602 | (*the_target->install_fast_tracepoint_jump_pad) (tpoint, tpaddr, \ |
603 | collector,lockaddr, \ | |
604 | orig_size, jump_entry, \ | |
405f8e94 SS |
605 | trampoline, \ |
606 | trampoline_size, \ | |
fa593d66 PA |
607 | jjump_pad_insn, \ |
608 | jjump_pad_insn_size, \ | |
609 | adjusted_insn_addr, \ | |
405f8e94 SS |
610 | adjusted_insn_addr_end, \ |
611 | err) | |
fa593d66 | 612 | |
6a271cae PA |
613 | #define target_emit_ops() \ |
614 | (the_target->emit_ops ? (*the_target->emit_ops) () : NULL) | |
615 | ||
03583c20 UW |
616 | #define target_supports_disable_randomization() \ |
617 | (the_target->supports_disable_randomization ? \ | |
618 | (*the_target->supports_disable_randomization) () : 0) | |
619 | ||
d1feda86 YQ |
620 | #define target_supports_agent() \ |
621 | (the_target->supports_agent ? \ | |
622 | (*the_target->supports_agent) () : 0) | |
623 | ||
b1223e78 MM |
624 | static inline struct btrace_target_info * |
625 | target_enable_btrace (ptid_t ptid, const struct btrace_config *conf) | |
626 | { | |
627 | if (the_target->enable_btrace == nullptr) | |
628 | error (_("Target does not support branch tracing.")); | |
629 | ||
630 | return (*the_target->enable_btrace) (ptid, conf); | |
631 | } | |
632 | ||
633 | static inline int | |
634 | target_disable_btrace (struct btrace_target_info *tinfo) | |
635 | { | |
636 | if (the_target->disable_btrace == nullptr) | |
637 | error (_("Target does not support branch tracing.")); | |
9accd112 | 638 | |
b1223e78 MM |
639 | return (*the_target->disable_btrace) (tinfo); |
640 | } | |
9accd112 | 641 | |
b1223e78 MM |
642 | static inline int |
643 | target_read_btrace (struct btrace_target_info *tinfo, | |
644 | struct buffer *buffer, | |
645 | enum btrace_read_type type) | |
646 | { | |
647 | if (the_target->read_btrace == nullptr) | |
648 | error (_("Target does not support branch tracing.")); | |
649 | ||
650 | return (*the_target->read_btrace) (tinfo, buffer, type); | |
651 | } | |
652 | ||
653 | static inline int | |
654 | target_read_btrace_conf (struct btrace_target_info *tinfo, | |
655 | struct buffer *buffer) | |
656 | { | |
657 | if (the_target->read_btrace_conf == nullptr) | |
658 | error (_("Target does not support branch tracing.")); | |
9accd112 | 659 | |
b1223e78 MM |
660 | return (*the_target->read_btrace_conf) (tinfo, buffer); |
661 | } | |
f4abbc16 | 662 | |
c2d6af84 PA |
663 | #define target_supports_range_stepping() \ |
664 | (the_target->supports_range_stepping ? \ | |
665 | (*the_target->supports_range_stepping) () : 0) | |
666 | ||
1ec68e26 PA |
667 | #define target_supports_stopped_by_sw_breakpoint() \ |
668 | (the_target->supports_stopped_by_sw_breakpoint ? \ | |
669 | (*the_target->supports_stopped_by_sw_breakpoint) () : 0) | |
670 | ||
671 | #define target_stopped_by_sw_breakpoint() \ | |
672 | (the_target->stopped_by_sw_breakpoint ? \ | |
673 | (*the_target->stopped_by_sw_breakpoint) () : 0) | |
674 | ||
675 | #define target_supports_stopped_by_hw_breakpoint() \ | |
676 | (the_target->supports_stopped_by_hw_breakpoint ? \ | |
677 | (*the_target->supports_stopped_by_hw_breakpoint) () : 0) | |
678 | ||
70b90b91 YQ |
679 | #define target_supports_hardware_single_step() \ |
680 | (the_target->supports_hardware_single_step ? \ | |
681 | (*the_target->supports_hardware_single_step) () : 0) | |
45614f15 | 682 | |
1ec68e26 PA |
683 | #define target_stopped_by_hw_breakpoint() \ |
684 | (the_target->stopped_by_hw_breakpoint ? \ | |
685 | (*the_target->stopped_by_hw_breakpoint) () : 0) | |
686 | ||
2e6ee069 AT |
687 | #define target_breakpoint_kind_from_pc(pcptr) \ |
688 | (the_target->breakpoint_kind_from_pc \ | |
689 | ? (*the_target->breakpoint_kind_from_pc) (pcptr) \ | |
690 | : default_breakpoint_kind_from_pc (pcptr)) | |
691 | ||
769ef81f AT |
692 | #define target_breakpoint_kind_from_current_state(pcptr) \ |
693 | (the_target->breakpoint_kind_from_current_state \ | |
694 | ? (*the_target->breakpoint_kind_from_current_state) (pcptr) \ | |
695 | : target_breakpoint_kind_from_pc (pcptr)) | |
696 | ||
7d00775e AT |
697 | #define target_supports_software_single_step() \ |
698 | (the_target->supports_software_single_step ? \ | |
699 | (*the_target->supports_software_single_step) () : 0) | |
700 | ||
bd99dc85 PA |
701 | /* Start non-stop mode, returns 0 on success, -1 on failure. */ |
702 | ||
703 | int start_non_stop (int nonstop); | |
704 | ||
95954743 PA |
705 | ptid_t mywait (ptid_t ptid, struct target_waitstatus *ourstatus, int options, |
706 | int connected_wait); | |
0d62e5e8 | 707 | |
a67a9fae | 708 | /* Prepare to read or write memory from the inferior process. See the |
5b6d1e4f | 709 | corresponding process_stratum_target methods for more details. */ |
90d74c30 | 710 | |
a67a9fae PA |
711 | int prepare_to_access_memory (void); |
712 | void done_accessing_memory (void); | |
90d74c30 | 713 | |
3e10640f YQ |
714 | #define target_core_of_thread(ptid) \ |
715 | (the_target->core_of_thread ? (*the_target->core_of_thread) (ptid) \ | |
716 | : -1) | |
717 | ||
79efa585 SM |
718 | #define target_thread_name(ptid) \ |
719 | (the_target->thread_name ? (*the_target->thread_name) (ptid) \ | |
720 | : NULL) | |
721 | ||
f6327dcb KB |
722 | #define target_thread_handle(ptid, handle, handle_len) \ |
723 | (the_target->thread_handle ? (*the_target->thread_handle) \ | |
724 | (ptid, handle, handle_len) \ | |
725 | : false) | |
726 | ||
f450004a | 727 | int read_inferior_memory (CORE_ADDR memaddr, unsigned char *myaddr, int len); |
ce3a066d | 728 | |
f557a88a | 729 | int set_desired_thread (); |
ce3a066d | 730 | |
95954743 PA |
731 | const char *target_pid_to_str (ptid_t); |
732 | ||
70b90b91 YQ |
733 | int target_can_do_hardware_single_step (void); |
734 | ||
2e6ee069 AT |
735 | int default_breakpoint_kind_from_pc (CORE_ADDR *pcptr); |
736 | ||
1a5c2598 | 737 | #endif /* GDBSERVER_TARGET_H */ |