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abeeff98 LM |
1 | /* Target-dependent code for ROCm. |
2 | ||
ca9af5a1 LM |
3 | Copyright (C) 2019-2020 Free Software Foundation, Inc. |
4 | Copyright (C) 2019-2020 Advanced Micro Devices, Inc. All rights reserved. | |
abeeff98 LM |
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 | |
10 | the Free Software Foundation; either version 3 of the License, or | |
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 | |
19 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ | |
20 | ||
21 | #include "defs.h" | |
22 | ||
23 | #include "amdgcn-rocm-tdep.h" | |
24 | #include "arch-utils.h" | |
25 | #include "cli/cli-style.h" | |
26 | #include "environ.h" | |
27 | #include "event-loop.h" | |
28 | #include "filenames.h" | |
29 | #include "gdbcmd.h" | |
30 | #include "gdbcore.h" | |
31 | #include "gdbsupport/filestuff.h" | |
32 | #include "gdbsupport/scoped_fd.h" | |
33 | #include "gdbthread.h" | |
34 | #include "hashtab.h" | |
35 | #include "inf-loop.h" | |
36 | #include "inferior.h" | |
37 | #include "location.h" | |
38 | #include "objfiles.h" | |
39 | #include "observable.h" | |
40 | #include "progspace-and-thread.h" | |
41 | #include "regcache.h" | |
42 | #include "rocm-tdep.h" | |
43 | #include "solib.h" | |
44 | #include "solist.h" | |
45 | #include "symfile.h" | |
46 | ||
47 | #include <dlfcn.h> | |
48 | #include <list> | |
49 | #include <set> | |
50 | #include <signal.h> | |
51 | #include <stdarg.h> | |
52 | #include <unordered_map> | |
53 | ||
54 | #include <amd-dbgapi.h> | |
55 | ||
56 | /* Big enough to hold the size of the largest register in bytes. */ | |
57 | #define AMDGCN_MAX_REGISTER_SIZE 256 | |
58 | ||
59 | #define DEFINE_OBSERVABLE(name) decltype (name) name (#name) | |
60 | ||
61 | DEFINE_OBSERVABLE (amd_dbgapi_activated); | |
62 | DEFINE_OBSERVABLE (amd_dbgapi_deactivated); | |
63 | DEFINE_OBSERVABLE (amd_dbgapi_code_object_list_updated); | |
64 | ||
65 | #undef DEFINE_OBSERVABLE | |
66 | ||
67 | struct rocm_notify_shared_library_info | |
68 | { | |
69 | std::string compare; /* Compare loaded library names with this string. */ | |
70 | struct so_list *solib; | |
71 | bool is_loaded; | |
72 | }; | |
73 | ||
74 | /* ROCm-specific inferior data. */ | |
75 | ||
76 | struct rocm_inferior_info | |
77 | { | |
78 | /* The amd_dbgapi_process_id for this inferior. */ | |
b8ff49b7 | 79 | amd_dbgapi_process_id_t process_id{ AMD_DBGAPI_PROCESS_NONE }; |
abeeff98 LM |
80 | |
81 | /* The amd_dbgapi_notifier_t for this inferior. */ | |
b8ff49b7 | 82 | amd_dbgapi_notifier_t notifier{ -1 }; |
abeeff98 LM |
83 | |
84 | /* True if commit_resume should all-start the GPU queues. */ | |
85 | bool commit_resume_all_start; | |
86 | ||
243f18ba LM |
87 | /* True is the inferior has exited. */ |
88 | bool has_exited{ false }; | |
89 | ||
abeeff98 LM |
90 | std::unordered_map<decltype (amd_dbgapi_breakpoint_id_t::handle), |
91 | struct breakpoint *> | |
92 | breakpoint_map; | |
93 | ||
94 | /* List of pending events the rocm target retrieved from the dbgapi. */ | |
95 | std::list<std::pair<amd_dbgapi_wave_id_t, amd_dbgapi_wave_stop_reason_t>> | |
96 | wave_stop_events; | |
97 | ||
98 | /* Map of rocm_notify_shared_library_info's for libraries that have been | |
99 | registered to receive notifications when loading/unloading. */ | |
100 | std::unordered_map<decltype (amd_dbgapi_shared_library_id_t::handle), | |
101 | struct rocm_notify_shared_library_info> | |
102 | notify_solib_map; | |
103 | }; | |
104 | ||
105 | static amd_dbgapi_event_id_t | |
106 | rocm_process_event_queue (amd_dbgapi_event_kind_t until_event_kind | |
107 | = AMD_DBGAPI_EVENT_KIND_NONE); | |
108 | ||
109 | /* Return the inferior's rocm_inferior_info struct. */ | |
110 | static struct rocm_inferior_info * | |
111 | get_rocm_inferior_info (struct inferior *inferior = nullptr); | |
112 | ||
113 | static const target_info rocm_ops_info | |
114 | = { "rocm", N_ ("ROCm GPU debugging support"), | |
115 | N_ ("ROCm GPU debugging support") }; | |
116 | ||
117 | static amd_dbgapi_log_level_t get_debug_amd_dbgapi_log_level (); | |
118 | ||
119 | struct rocm_target_ops final : public target_ops | |
120 | { | |
121 | const target_info & | |
122 | info () const override | |
123 | { | |
124 | return rocm_ops_info; | |
125 | } | |
126 | strata | |
127 | stratum () const override | |
128 | { | |
129 | return arch_stratum; | |
130 | } | |
131 | ||
36f3baab | 132 | void close () override; |
abeeff98 LM |
133 | void mourn_inferior () override; |
134 | ||
135 | void async (int enable) override; | |
136 | ||
137 | ptid_t wait (ptid_t, struct target_waitstatus *, int) override; | |
138 | void resume (ptid_t, int, enum gdb_signal) override; | |
139 | void commit_resume () override; | |
140 | void stop (ptid_t ptid) override; | |
141 | ||
142 | void fetch_registers (struct regcache *, int) override; | |
143 | void store_registers (struct regcache *, int) override; | |
144 | ||
145 | void update_thread_list () override; | |
146 | ||
147 | struct gdbarch *thread_architecture (ptid_t) override; | |
148 | ||
149 | std::string pid_to_str (ptid_t ptid) override; | |
150 | ||
151 | const char *thread_name (thread_info *tp) override; | |
152 | ||
153 | const char *extra_thread_info (thread_info *tp) override; | |
154 | ||
155 | bool thread_alive (ptid_t ptid) override; | |
156 | ||
157 | enum target_xfer_status xfer_partial (enum target_object object, | |
158 | const char *annex, gdb_byte *readbuf, | |
159 | const gdb_byte *writebuf, | |
160 | ULONGEST offset, ULONGEST len, | |
161 | ULONGEST *xfered_len) override; | |
162 | ||
163 | bool | |
164 | stopped_by_watchpoint () override | |
165 | { | |
166 | return !ptid_is_gpu (inferior_ptid) | |
167 | && beneath ()->stopped_by_watchpoint (); | |
168 | } | |
169 | ||
170 | bool | |
171 | stopped_data_address (CORE_ADDR *addr_p) override | |
172 | { | |
173 | return !ptid_is_gpu (inferior_ptid) | |
174 | && beneath ()->stopped_data_address (addr_p); | |
175 | } | |
176 | ||
177 | bool | |
178 | supports_stopped_by_sw_breakpoint () override | |
179 | { | |
180 | return true; | |
181 | } | |
182 | ||
183 | bool stopped_by_sw_breakpoint () override; | |
184 | ||
185 | bool | |
186 | stopped_by_hw_breakpoint () override | |
187 | { | |
188 | return !ptid_is_gpu (inferior_ptid) | |
189 | && beneath ()->stopped_by_hw_breakpoint (); | |
190 | } | |
191 | }; | |
192 | ||
193 | /* ROCm's target vector. */ | |
194 | static struct rocm_target_ops rocm_ops; | |
195 | ||
196 | /* ROCm breakpoint ops. */ | |
197 | static struct breakpoint_ops rocm_breakpoint_ops; | |
198 | ||
199 | /* Per-inferior data key. */ | |
200 | static const struct inferior_key<rocm_inferior_info> rocm_inferior_data; | |
201 | ||
202 | /* The read/write ends of the pipe registered as waitable file in the | |
203 | event loop. */ | |
204 | static int rocm_event_pipe[2] = { -1, -1 }; | |
205 | ||
206 | /* Flush the event pipe. */ | |
207 | ||
5cf3a303 | 208 | static void |
abeeff98 LM |
209 | async_file_flush (void) |
210 | { | |
211 | int ret; | |
212 | char buf; | |
213 | ||
214 | do | |
215 | { | |
216 | ret = read (rocm_event_pipe[0], &buf, 1); | |
217 | } | |
218 | while (ret >= 0 || (ret == -1 && errno == EINTR)); | |
219 | } | |
220 | ||
221 | /* Put something (anything, doesn't matter what, or how much) in event | |
222 | pipe, so that the select/poll in the event-loop realizes we have | |
223 | something to process. */ | |
224 | ||
225 | static void | |
226 | async_file_mark (void) | |
227 | { | |
228 | int ret; | |
229 | ||
230 | /* It doesn't really matter what the pipe contains, as long we end | |
231 | up with something in it. Might as well flush the previous | |
232 | left-overs. */ | |
233 | async_file_flush (); | |
234 | ||
235 | do | |
236 | { | |
237 | ret = write (rocm_event_pipe[1], "+", 1); | |
238 | } | |
239 | while (ret == -1 && errno == EINTR); | |
240 | ||
241 | /* Ignore EAGAIN. If the pipe is full, the event loop will already | |
242 | be awakened anyway. */ | |
243 | } | |
244 | ||
245 | /* Fetch the rocm_inferior_info data for the given inferior. */ | |
246 | ||
247 | static struct rocm_inferior_info * | |
248 | get_rocm_inferior_info (struct inferior *inferior) | |
249 | { | |
250 | if (!inferior) | |
251 | inferior = current_inferior (); | |
252 | ||
253 | struct rocm_inferior_info *info = rocm_inferior_data.get (inferior); | |
254 | ||
255 | if (!info) | |
256 | info = rocm_inferior_data.emplace (inferior); | |
257 | ||
258 | return info; | |
259 | } | |
260 | ||
261 | /* Fetch the amd_dbgapi_process_id for the given inferior. */ | |
262 | ||
263 | amd_dbgapi_process_id_t | |
264 | get_amd_dbgapi_process_id (struct inferior *inferior) | |
265 | { | |
266 | return get_rocm_inferior_info (inferior)->process_id; | |
267 | } | |
268 | ||
9e275233 LM |
269 | static void |
270 | rocm_breakpoint_re_set (struct breakpoint *b) | |
271 | { | |
272 | } | |
273 | ||
abeeff98 LM |
274 | static void |
275 | rocm_breakpoint_check_status (struct bpstats *bs) | |
276 | { | |
277 | struct rocm_inferior_info *info = get_rocm_inferior_info (); | |
278 | amd_dbgapi_process_id_t process_id = info->process_id; | |
279 | amd_dbgapi_status_t status; | |
280 | ||
281 | bs->stop = 0; | |
282 | bs->print_it = print_it_noop; | |
283 | ||
284 | /* Find the address the breakpoint is set at. */ | |
285 | auto it = std::find_if ( | |
286 | info->breakpoint_map.begin (), info->breakpoint_map.end (), | |
287 | [=] (const decltype (info->breakpoint_map)::value_type &value) { | |
288 | return value.second == bs->breakpoint_at; | |
289 | }); | |
290 | ||
291 | if (it == info->breakpoint_map.end ()) | |
292 | error (_ ("Could not find breakpoint_id for breakpoint at %#lx"), | |
293 | bs->bp_location_at->address); | |
294 | ||
295 | amd_dbgapi_breakpoint_id_t breakpoint_id{ it->first }; | |
296 | amd_dbgapi_breakpoint_action_t action; | |
297 | ||
298 | status = amd_dbgapi_report_breakpoint_hit (process_id, breakpoint_id, | |
299 | inferior_thread (), &action); | |
300 | ||
301 | if (status != AMD_DBGAPI_STATUS_SUCCESS) | |
302 | error (_ ("amd_dbgapi_report_breakpoint_hit failed: breakpoint_%ld " | |
303 | "at %#lx (rc=%d)"), | |
304 | breakpoint_id.handle, bs->bp_location_at->address, status); | |
305 | ||
306 | if (action == AMD_DBGAPI_BREAKPOINT_ACTION_RESUME) | |
307 | return; | |
308 | ||
309 | /* If the action is AMD_DBGAPI_BREAKPOINT_ACTION_HALT, we need to wait until | |
310 | a breakpoint resume event for this breakpoint_id is seen. */ | |
311 | ||
312 | amd_dbgapi_event_id_t resume_event_id | |
313 | = rocm_process_event_queue (AMD_DBGAPI_EVENT_KIND_BREAKPOINT_RESUME); | |
314 | ||
315 | /* We should always get a breakpoint_resume event after processing all | |
316 | events generated by reporting the breakpoint was hit. */ | |
317 | gdb_assert (resume_event_id.handle != AMD_DBGAPI_EVENT_NONE.handle); | |
318 | ||
319 | amd_dbgapi_breakpoint_id_t resume_breakpoint_id; | |
320 | status = amd_dbgapi_event_get_info ( | |
321 | process_id, resume_event_id, AMD_DBGAPI_EVENT_INFO_BREAKPOINT, | |
322 | sizeof (resume_breakpoint_id), &resume_breakpoint_id); | |
323 | ||
324 | if (status != AMD_DBGAPI_STATUS_SUCCESS) | |
325 | error (_ ("amd_dbgapi_event_get_info failed (rc=%d)"), status); | |
326 | ||
327 | /* The debugger API guarantees that [breakpoint_hit...resume_breakpoint] | |
328 | sequences cannot interleave, so this breakpoint resume event must be | |
329 | for our breakpoint_id. */ | |
330 | if (resume_breakpoint_id.handle != breakpoint_id.handle) | |
331 | error (_ ("breakpoint resume event is not for this breakpoint. " | |
332 | "Expected breakpoint_%ld, got breakpoint_%ld"), | |
333 | breakpoint_id.handle, resume_breakpoint_id.handle); | |
334 | ||
335 | amd_dbgapi_event_processed (process_id, resume_event_id); | |
336 | } | |
337 | ||
338 | static void | |
339 | rocm_target_dbgapi_activated () | |
340 | { | |
341 | /* FIXME: only push on the first activation. */ | |
342 | /* Engage the ROCm target_ops and so_ops. */ | |
343 | push_target (&rocm_ops); | |
344 | } | |
345 | ||
346 | static void | |
347 | rocm_target_dbgapi_deactivated () | |
348 | { | |
349 | /* FIXME: only unpush on the last activation. */ | |
350 | /* Disengage the ROCm target_ops. */ | |
351 | unpush_target (&rocm_ops); | |
352 | } | |
353 | ||
354 | bool | |
355 | rocm_target_ops::thread_alive (ptid_t ptid) | |
356 | { | |
357 | if (!ptid_is_gpu (ptid)) | |
358 | return beneath ()->thread_alive (ptid); | |
359 | ||
360 | /* Check that the wave_id is valid. */ | |
361 | ||
362 | inferior *inf = find_inferior_ptid (ptid); | |
363 | if (!inf) | |
364 | return false; | |
365 | ||
366 | amd_dbgapi_wave_state_t state; | |
367 | return amd_dbgapi_wave_get_info ( | |
368 | get_amd_dbgapi_process_id (inf), get_amd_dbgapi_wave_id (ptid), | |
369 | AMD_DBGAPI_WAVE_INFO_STATE, sizeof (state), &state) | |
370 | == AMD_DBGAPI_STATUS_SUCCESS; | |
371 | } | |
372 | ||
373 | const char * | |
374 | rocm_target_ops::thread_name (thread_info *tp) | |
375 | { | |
376 | if (!ptid_is_gpu (tp->ptid)) | |
377 | return beneath ()->thread_name (tp); | |
378 | ||
223465e7 LM |
379 | /* Return the process's comm value—that is, the command name associated with |
380 | the process. */ | |
abeeff98 | 381 | |
223465e7 LM |
382 | char comm_path[128]; |
383 | xsnprintf (comm_path, sizeof (comm_path), "/proc/%ld/comm", | |
384 | (long)tp->ptid.pid ()); | |
385 | ||
386 | gdb_file_up comm_file = gdb_fopen_cloexec (comm_path, "r"); | |
387 | if (!comm_file) | |
388 | return nullptr; | |
abeeff98 | 389 | |
223465e7 LM |
390 | #if !defined(TASK_COMM_LEN) |
391 | #define TASK_COMM_LEN 16 /* As defined in the kernel's sched.h. */ | |
392 | #endif | |
abeeff98 | 393 | |
223465e7 LM |
394 | static char comm_buf[TASK_COMM_LEN]; |
395 | const char *comm_value; | |
abeeff98 | 396 | |
223465e7 LM |
397 | comm_value = fgets (comm_buf, sizeof (comm_buf), comm_file.get ()); |
398 | comm_buf[sizeof (comm_buf) - 1] = '\0'; | |
399 | ||
400 | /* Make sure there is no newline at the end. */ | |
401 | if (comm_value) | |
402 | { | |
403 | for (int i = 0; i < sizeof (comm_buf); i++) | |
404 | if (comm_buf[i] == '\n') | |
405 | { | |
406 | comm_buf[i] = '\0'; | |
407 | break; | |
408 | } | |
abeeff98 LM |
409 | } |
410 | ||
223465e7 | 411 | return comm_value; |
abeeff98 LM |
412 | } |
413 | ||
414 | std::string | |
415 | rocm_target_ops::pid_to_str (ptid_t ptid) | |
416 | { | |
417 | if (!ptid_is_gpu (ptid)) | |
418 | { | |
419 | return beneath ()->pid_to_str (ptid); | |
420 | } | |
421 | ||
422 | amd_dbgapi_process_id_t process_id = get_amd_dbgapi_process_id (); | |
423 | amd_dbgapi_wave_id_t wave_id = get_amd_dbgapi_wave_id (ptid); | |
424 | amd_dbgapi_dispatch_id_t dispatch_id; | |
425 | uint32_t group_ids[3], wave_in_group; | |
426 | ||
427 | if (amd_dbgapi_wave_get_info (process_id, wave_id, | |
428 | AMD_DBGAPI_WAVE_INFO_DISPATCH, | |
429 | sizeof (dispatch_id), &dispatch_id) | |
430 | != AMD_DBGAPI_STATUS_SUCCESS | |
431 | || amd_dbgapi_wave_get_info (process_id, wave_id, | |
432 | AMD_DBGAPI_WAVE_INFO_WORK_GROUP_COORD, | |
433 | sizeof (group_ids), &group_ids) | |
434 | != AMD_DBGAPI_STATUS_SUCCESS | |
435 | || amd_dbgapi_wave_get_info ( | |
436 | process_id, wave_id, | |
437 | AMD_DBGAPI_WAVE_INFO_WAVE_NUMBER_IN_WORK_GROUP, | |
438 | sizeof (wave_in_group), &wave_in_group) | |
439 | != AMD_DBGAPI_STATUS_SUCCESS) | |
8f156997 | 440 | return std::string ("AMDGPU Thread"); |
abeeff98 | 441 | else |
8f156997 | 442 | return string_printf ("AMDGPU Thread %ld.%ld (%d,%d,%d)/%d", |
abeeff98 LM |
443 | dispatch_id.handle, wave_id.handle, group_ids[2], |
444 | group_ids[1], group_ids[0], wave_in_group); | |
445 | } | |
446 | ||
447 | const char * | |
448 | rocm_target_ops::extra_thread_info (thread_info *tp) | |
449 | { | |
450 | if (!ptid_is_gpu (tp->ptid)) | |
451 | beneath ()->extra_thread_info (tp); | |
452 | ||
453 | return NULL; | |
454 | } | |
455 | ||
456 | enum target_xfer_status | |
457 | rocm_target_ops::xfer_partial (enum target_object object, const char *annex, | |
458 | gdb_byte *readbuf, const gdb_byte *writebuf, | |
459 | ULONGEST offset, ULONGEST requested_len, | |
460 | ULONGEST *xfered_len) | |
461 | { | |
462 | gdb::optional<scoped_restore_current_thread> maybe_restore_thread; | |
463 | ||
464 | if (ptid_is_gpu (inferior_ptid)) | |
465 | { | |
466 | gdb_assert (requested_len && xfered_len && "checking invariants"); | |
467 | ||
468 | if (object != TARGET_OBJECT_MEMORY) | |
469 | return TARGET_XFER_E_IO; | |
470 | ||
471 | amd_dbgapi_process_id_t process_id = get_amd_dbgapi_process_id (); | |
472 | amd_dbgapi_wave_id_t wave_id = get_amd_dbgapi_wave_id (inferior_ptid); | |
473 | ||
474 | amd_dbgapi_architecture_id_t architecture_id; | |
475 | amd_dbgapi_address_space_id_t address_space_id; | |
476 | ||
477 | if (amd_dbgapi_wave_get_info (process_id, wave_id, | |
478 | AMD_DBGAPI_WAVE_INFO_ARCHITECTURE, | |
479 | sizeof (architecture_id), &architecture_id) | |
480 | != AMD_DBGAPI_STATUS_SUCCESS | |
481 | || amd_dbgapi_architecture_get_info ( | |
482 | architecture_id, | |
483 | AMD_DBGAPI_ARCHITECTURE_INFO_DEFAULT_GLOBAL_ADDRESS_SPACE, | |
484 | sizeof (address_space_id), &address_space_id) | |
485 | != AMD_DBGAPI_STATUS_SUCCESS) | |
edc83450 | 486 | return TARGET_XFER_EOF; |
abeeff98 LM |
487 | |
488 | size_t len = requested_len; | |
489 | amd_dbgapi_status_t status; | |
490 | ||
491 | if (readbuf) | |
492 | status = amd_dbgapi_read_memory ( | |
493 | process_id, wave_id, 0, address_space_id, offset, &len, readbuf); | |
494 | else | |
495 | status = amd_dbgapi_write_memory ( | |
496 | process_id, wave_id, 0, address_space_id, offset, &len, writebuf); | |
497 | ||
498 | if (status != AMD_DBGAPI_STATUS_SUCCESS) | |
edc83450 | 499 | return TARGET_XFER_EOF; |
abeeff98 LM |
500 | |
501 | *xfered_len = len; | |
502 | return TARGET_XFER_OK; | |
503 | } | |
504 | else | |
505 | return beneath ()->xfer_partial (object, annex, readbuf, writebuf, offset, | |
506 | requested_len, xfered_len); | |
507 | } | |
508 | ||
509 | void | |
510 | rocm_target_ops::resume (ptid_t ptid, int step, enum gdb_signal signo) | |
511 | { | |
512 | struct rocm_inferior_info *info = get_rocm_inferior_info (); | |
513 | ||
514 | if (debug_infrun) | |
515 | fprintf_unfiltered ( | |
516 | gdb_stdlog, | |
517 | "\e[1;34minfrun: rocm_target_ops::resume ([%d,%ld,%ld])\e[0m\n", | |
518 | ptid.pid (), ptid.lwp (), ptid.tid ()); | |
519 | ||
520 | /* Check if the thread focus is on the GPU device. */ | |
521 | if (ptid == minus_one_ptid || !ptid_is_gpu (ptid)) | |
522 | { | |
523 | beneath ()->resume (ptid, step, signo); | |
524 | if (ptid != minus_one_ptid) | |
525 | return; | |
526 | } | |
527 | ||
528 | /* A specific PTID means `step only this process id'. */ | |
529 | bool resume_one = ptid != minus_one_ptid && !ptid.is_pid (); | |
530 | gdb_assert (resume_one || !step); | |
531 | ||
532 | if (!resume_one) | |
533 | error (_ ("internal error - unimplemented ")); | |
534 | ||
535 | amd_dbgapi_process_set_progress (info->process_id, | |
536 | AMD_DBGAPI_PROGRESS_NO_FORWARD); | |
537 | ||
538 | amd_dbgapi_status_t status = amd_dbgapi_wave_resume ( | |
539 | info->process_id, get_amd_dbgapi_wave_id (ptid), | |
540 | step ? AMD_DBGAPI_RESUME_MODE_SINGLE_STEP | |
541 | : AMD_DBGAPI_RESUME_MODE_NORMAL); | |
542 | if (status != AMD_DBGAPI_STATUS_SUCCESS) | |
543 | warning (_ ("Could not resume %s (rc=%d)"), | |
544 | target_pid_to_str (ptid).c_str (), status); | |
545 | ||
546 | info->commit_resume_all_start = true; | |
547 | } | |
548 | ||
549 | void | |
550 | rocm_target_ops::commit_resume () | |
551 | { | |
552 | struct rocm_inferior_info *info = get_rocm_inferior_info (); | |
553 | ||
554 | if (debug_infrun) | |
555 | fprintf_unfiltered ( | |
556 | gdb_stdlog, | |
557 | "\e[1;34minfrun: rocm_target_ops::commit_resume ()\e[0m\n"); | |
558 | ||
559 | beneath ()->commit_resume (); | |
560 | ||
561 | if (info->commit_resume_all_start) | |
562 | { | |
563 | amd_dbgapi_process_set_progress (info->process_id, | |
564 | AMD_DBGAPI_PROGRESS_NORMAL); | |
565 | info->commit_resume_all_start = false; | |
566 | } | |
567 | ||
568 | if (target_can_async_p ()) | |
569 | target_async (1); | |
570 | } | |
571 | ||
572 | static void | |
573 | rocm_target_stop_one_wave (ptid_t ptid) | |
574 | { | |
575 | amd_dbgapi_status_t status; | |
576 | ||
577 | status = amd_dbgapi_wave_stop (get_amd_dbgapi_process_id (), | |
578 | get_amd_dbgapi_wave_id (ptid)); | |
579 | ||
580 | if (status == AMD_DBGAPI_STATUS_ERROR_INVALID_WAVE_ID) | |
581 | { | |
582 | /* the wave must have exited, set the thread status to reflect that. */ | |
583 | auto *tp = find_thread_ptid (ptid); | |
584 | gdb_assert (tp); | |
585 | ||
586 | tp->state = THREAD_EXITED; | |
587 | } | |
588 | else if (status != AMD_DBGAPI_STATUS_SUCCESS) | |
589 | warning (_ ("Could not stop %s (rc=%d)"), | |
590 | target_pid_to_str (ptid).c_str (), status); | |
591 | } | |
592 | ||
593 | void | |
594 | rocm_target_ops::stop (ptid_t ptid) | |
595 | { | |
596 | if (debug_infrun) | |
597 | fprintf_unfiltered ( | |
598 | gdb_stdlog, | |
599 | "\e[1;34minfrun: rocm_target_ops::stop ([%d,%ld,%ld])\e[0m\n", | |
600 | ptid.pid (), ptid.lwp (), ptid.tid ()); | |
601 | ||
602 | if (ptid == minus_one_ptid || !ptid_is_gpu (ptid)) | |
603 | { | |
604 | beneath ()->stop (ptid); | |
605 | if (ptid != minus_one_ptid) | |
606 | return; | |
607 | } | |
608 | ||
609 | if (ptid == minus_one_ptid) | |
610 | error (_ ("internal error - unimplemented ")); | |
611 | ||
612 | rocm_target_stop_one_wave (ptid); | |
613 | } | |
614 | ||
615 | static void | |
616 | handle_target_event (int error, gdb_client_data client_data) | |
617 | { | |
618 | struct rocm_inferior_info *info = get_rocm_inferior_info (); | |
619 | amd_dbgapi_process_id_t process_id = info->process_id; | |
620 | ||
621 | amd_dbgapi_process_set_progress (process_id, AMD_DBGAPI_PROGRESS_NO_FORWARD); | |
622 | ||
623 | /* Flush the async file first. */ | |
624 | if (target_is_async_p ()) | |
625 | async_file_flush (); | |
626 | ||
627 | rocm_process_event_queue (); | |
628 | ||
629 | /* In all-stop mode, unless the event queue is empty (spurious wake-up), | |
630 | we can keep the process in progress_no_forward mode. The infrun loop | |
631 | will enable forward progress when a thread is resumed. */ | |
632 | if (non_stop || info->wave_stop_events.empty ()) | |
633 | amd_dbgapi_process_set_progress (process_id, AMD_DBGAPI_PROGRESS_NORMAL); | |
634 | ||
635 | if (!info->wave_stop_events.empty ()) | |
636 | inferior_event_handler (INF_REG_EVENT, nullptr); | |
637 | } | |
638 | ||
639 | void | |
640 | rocm_target_ops::async (int enable) | |
641 | { | |
642 | beneath ()->async (enable); | |
643 | ||
644 | if (enable) | |
645 | { | |
646 | if (rocm_event_pipe[0] != -1) | |
647 | return; | |
648 | ||
649 | if (gdb_pipe_cloexec (rocm_event_pipe) == -1) | |
650 | internal_error (__FILE__, __LINE__, "creating event pipe failed."); | |
651 | ||
652 | ::fcntl (rocm_event_pipe[0], F_SETFL, O_NONBLOCK); | |
653 | ::fcntl (rocm_event_pipe[1], F_SETFL, O_NONBLOCK); | |
654 | ||
655 | add_file_handler (rocm_event_pipe[0], handle_target_event, nullptr); | |
656 | ||
657 | /* There may be pending events to handle. Tell the event loop | |
658 | to poll them. */ | |
659 | async_file_mark (); | |
660 | } | |
661 | else | |
662 | { | |
abeeff98 LM |
663 | if (rocm_event_pipe[0] == -1) |
664 | return; | |
665 | ||
36f3baab LM |
666 | delete_file_handler (rocm_event_pipe[0]); |
667 | ||
abeeff98 LM |
668 | ::close (rocm_event_pipe[0]); |
669 | ::close (rocm_event_pipe[1]); | |
670 | rocm_event_pipe[0] = -1; | |
671 | rocm_event_pipe[1] = -1; | |
672 | } | |
673 | } | |
674 | ||
675 | static void | |
676 | rocm_process_one_event (amd_dbgapi_event_id_t event_id, | |
677 | amd_dbgapi_event_kind_t event_kind) | |
678 | { | |
679 | struct rocm_inferior_info *info = get_rocm_inferior_info (); | |
680 | amd_dbgapi_process_id_t process_id = info->process_id; | |
681 | amd_dbgapi_status_t status; | |
682 | ||
683 | switch (event_kind) | |
684 | { | |
685 | case AMD_DBGAPI_EVENT_KIND_WAVE_STOP: | |
686 | { | |
687 | amd_dbgapi_wave_id_t wave_id; | |
688 | if ((status = amd_dbgapi_event_get_info (process_id, event_id, | |
689 | AMD_DBGAPI_EVENT_INFO_WAVE, | |
690 | sizeof (wave_id), &wave_id)) | |
691 | != AMD_DBGAPI_STATUS_SUCCESS) | |
692 | error (_ ("event_get_info for event_%ld failed (rc=%d)"), | |
693 | event_id.handle, status); | |
694 | ||
695 | amd_dbgapi_wave_stop_reason_t stop_reason; | |
696 | status = amd_dbgapi_wave_get_info (process_id, wave_id, | |
697 | AMD_DBGAPI_WAVE_INFO_STOP_REASON, | |
698 | sizeof (stop_reason), &stop_reason); | |
699 | ||
700 | if (status != AMD_DBGAPI_STATUS_SUCCESS | |
701 | && status != AMD_DBGAPI_STATUS_ERROR_INVALID_WAVE_ID) | |
702 | error (_ ("wave_get_info for wave_%ld failed (rc=%d)"), | |
703 | wave_id.handle, status); | |
704 | ||
705 | /* The wave may have exited, or the queue went into an error | |
706 | state. In such cases, we will see another wave command | |
707 | terminated event, and handle the wave termination then. */ | |
708 | ||
709 | if (status == AMD_DBGAPI_STATUS_SUCCESS) | |
710 | info->wave_stop_events.emplace_back ( | |
711 | std::make_pair (wave_id, stop_reason)); | |
712 | } | |
713 | break; | |
714 | ||
715 | case AMD_DBGAPI_EVENT_KIND_CODE_OBJECT_LIST_UPDATED: | |
716 | amd_dbgapi_code_object_list_updated.notify (); | |
717 | break; | |
718 | ||
719 | case AMD_DBGAPI_EVENT_KIND_BREAKPOINT_RESUME: | |
720 | /* Breakpoint resume events should be handled by the breakpoint | |
721 | action, and this code should not reach this. */ | |
722 | gdb_assert_not_reached (_ ("unhandled event kind")); | |
723 | break; | |
724 | ||
725 | case AMD_DBGAPI_EVENT_KIND_RUNTIME: | |
726 | { | |
727 | amd_dbgapi_runtime_state_t runtime_state; | |
728 | ||
729 | if ((status = amd_dbgapi_event_get_info ( | |
730 | process_id, event_id, AMD_DBGAPI_EVENT_INFO_RUNTIME_STATE, | |
731 | sizeof (runtime_state), &runtime_state)) | |
732 | != AMD_DBGAPI_STATUS_SUCCESS) | |
733 | error (_ ("event_get_info for event_%ld failed (rc=%d)"), | |
734 | event_id.handle, status); | |
735 | ||
736 | switch (runtime_state) | |
737 | { | |
738 | case AMD_DBGAPI_RUNTIME_STATE_LOADED_SUPPORTED: | |
739 | amd_dbgapi_activated.notify (); | |
740 | break; | |
741 | case AMD_DBGAPI_RUNTIME_STATE_LOADED_UNSUPPORTED: | |
742 | warning (_ ("ROCm-GDB: low-level runtime version not supported")); | |
743 | break; | |
744 | ||
745 | case AMD_DBGAPI_RUNTIME_STATE_UNLOADED: | |
746 | amd_dbgapi_deactivated.notify (); | |
747 | break; | |
748 | } | |
749 | } | |
750 | break; | |
751 | ||
752 | default: | |
753 | error (_ ("event kind (%d) not supported"), event_kind); | |
754 | } | |
755 | ||
756 | amd_dbgapi_event_processed (process_id, event_id); | |
757 | } | |
758 | ||
759 | /* Drain the amd_dbgapi event queue until an event of the given type is seen. | |
760 | If no particular event kind is specified (AMD_DBGAPI_EVENT_KIND_NONE), the | |
761 | event queue is completely drained. Wave stop events that are not returned | |
762 | are re-queued into the current's process pending wave events. */ | |
763 | static amd_dbgapi_event_id_t | |
764 | rocm_process_event_queue (amd_dbgapi_event_kind_t until_event_kind) | |
765 | { | |
766 | struct rocm_inferior_info *info = get_rocm_inferior_info (); | |
767 | ||
768 | while (true) | |
769 | { | |
770 | amd_dbgapi_event_id_t event_id; | |
771 | amd_dbgapi_event_kind_t event_kind; | |
772 | ||
773 | amd_dbgapi_status_t status = amd_dbgapi_next_pending_event ( | |
774 | info->process_id, &event_id, &event_kind); | |
775 | ||
776 | if (status != AMD_DBGAPI_STATUS_SUCCESS) | |
777 | error (_ ("next_pending_event failed (rc=%d)"), status); | |
778 | ||
779 | if (event_id.handle == AMD_DBGAPI_EVENT_NONE.handle | |
780 | || event_kind == until_event_kind) | |
781 | return event_id; | |
782 | ||
783 | rocm_process_one_event (event_id, event_kind); | |
784 | } | |
785 | } | |
786 | ||
787 | ptid_t | |
788 | rocm_target_ops::wait (ptid_t ptid, struct target_waitstatus *ws, | |
789 | int target_options) | |
790 | { | |
791 | if (debug_infrun) | |
792 | fprintf_unfiltered (gdb_stdlog, | |
793 | "\e[1;34minfrun: rocm_target_ops::wait\e[0m\n"); | |
794 | ||
795 | if (!ptid_is_gpu (ptid)) | |
796 | { | |
797 | ptid_t event_ptid = beneath ()->wait (ptid, ws, target_options); | |
798 | if (event_ptid != minus_one_ptid) | |
799 | return event_ptid; | |
800 | } | |
801 | ||
802 | struct rocm_inferior_info *info = get_rocm_inferior_info (); | |
803 | amd_dbgapi_process_id_t process_id = info->process_id; | |
804 | ||
805 | /* Drain all the events from the amd_dbgapi, and preserve the ordering. */ | |
806 | if (info->wave_stop_events.empty ()) | |
807 | { | |
808 | amd_dbgapi_process_set_progress (process_id, | |
809 | AMD_DBGAPI_PROGRESS_NO_FORWARD); | |
810 | ||
811 | /* Flush the async file first. */ | |
812 | if (target_is_async_p ()) | |
813 | async_file_flush (); | |
814 | ||
815 | rocm_process_event_queue (); | |
816 | ||
817 | /* In all-stop mode, unless the event queue is empty (spurious wake-up), | |
818 | we can keep the process in progress_no_forward mode. The infrun loop | |
819 | will enable forward progress when a thread is resumed. */ | |
820 | if (non_stop || info->wave_stop_events.empty ()) | |
821 | amd_dbgapi_process_set_progress (process_id, | |
822 | AMD_DBGAPI_PROGRESS_NORMAL); | |
823 | } | |
824 | ||
825 | if (info->wave_stop_events.empty ()) | |
826 | return minus_one_ptid; | |
827 | ||
828 | amd_dbgapi_wave_id_t event_wave_id; | |
829 | amd_dbgapi_wave_stop_reason_t stop_reason; | |
830 | ||
831 | std::tie (event_wave_id, stop_reason) = info->wave_stop_events.front (); | |
832 | info->wave_stop_events.pop_front (); | |
833 | ||
834 | ptid_t event_ptid (current_inferior ()->pid, 1, event_wave_id.handle); | |
835 | ||
836 | if (!find_thread_ptid (event_ptid)) | |
837 | { | |
838 | add_thread_silent (event_ptid); | |
839 | set_running (event_ptid, 1); | |
840 | set_executing (event_ptid, 1); | |
841 | } | |
842 | ||
843 | /* Since we are manipulating the register cache for the event thread, | |
844 | make sure it is the current thread. */ | |
845 | switch_to_thread (event_ptid); | |
846 | ||
847 | /* By caching the PC now, we avoid having to suspend/resume the queue | |
848 | later when we need to access it. */ | |
849 | amd_dbgapi_global_address_t stop_pc; | |
850 | if (amd_dbgapi_wave_get_info (process_id, event_wave_id, | |
851 | AMD_DBGAPI_WAVE_INFO_PC, sizeof (stop_pc), | |
852 | &stop_pc) | |
853 | == AMD_DBGAPI_STATUS_SUCCESS) | |
854 | { | |
855 | struct regcache *regcache = get_thread_regcache (event_ptid); | |
856 | regcache->raw_supply (gdbarch_pc_regnum (regcache->arch ()), &stop_pc); | |
857 | } | |
858 | ws->kind = TARGET_WAITKIND_STOPPED; | |
859 | ||
860 | if (stop_reason | |
861 | & (AMD_DBGAPI_WAVE_STOP_REASON_BREAKPOINT | |
862 | | AMD_DBGAPI_WAVE_STOP_REASON_SINGLE_STEP)) | |
863 | ws->value.sig = GDB_SIGNAL_TRAP; | |
864 | else if (stop_reason & AMD_DBGAPI_WAVE_STOP_REASON_MEMORY_VIOLATION) | |
865 | ws->value.sig = GDB_SIGNAL_SEGV; | |
866 | else if (stop_reason | |
867 | & (AMD_DBGAPI_WAVE_STOP_REASON_FP_INPUT_DENORMAL | |
868 | | AMD_DBGAPI_WAVE_STOP_REASON_FP_DIVIDE_BY_0 | |
869 | | AMD_DBGAPI_WAVE_STOP_REASON_FP_OVERFLOW | |
870 | | AMD_DBGAPI_WAVE_STOP_REASON_FP_UNDERFLOW | |
871 | | AMD_DBGAPI_WAVE_STOP_REASON_FP_INEXACT | |
872 | | AMD_DBGAPI_WAVE_STOP_REASON_FP_INVALID_OPERATION | |
873 | | AMD_DBGAPI_WAVE_STOP_REASON_INT_DIVIDE_BY_0)) | |
874 | ws->value.sig = GDB_SIGNAL_FPE; | |
875 | else | |
876 | ws->value.sig = GDB_SIGNAL_0; | |
877 | ||
878 | /* If there are more events in the list, mark the async file so that | |
879 | rocm_target_ops::wait gets called again. */ | |
880 | if (target_is_async_p () && !info->wave_stop_events.empty ()) | |
881 | async_file_mark (); | |
882 | ||
883 | return event_ptid; | |
884 | } | |
885 | ||
886 | bool | |
887 | rocm_target_ops::stopped_by_sw_breakpoint () | |
888 | { | |
889 | if (!ptid_is_gpu (inferior_ptid)) | |
890 | return beneath ()->supports_stopped_by_sw_breakpoint () | |
891 | && beneath ()->stopped_by_sw_breakpoint (); | |
892 | ||
893 | /* FIXME: we should check that the wave is not single-stepping. */ | |
894 | ||
895 | struct regcache *regcache = get_thread_regcache (inferior_ptid); | |
896 | ||
897 | CORE_ADDR bkpt_pc = regcache_read_pc (regcache) | |
898 | - gdbarch_decr_pc_after_break (regcache->arch ()); | |
899 | ||
900 | return software_breakpoint_inserted_here_p (regcache->aspace (), bkpt_pc); | |
901 | } | |
902 | ||
36f3baab LM |
903 | void |
904 | rocm_target_ops::close () | |
905 | { | |
906 | /* Unregister from the event loop. */ | |
907 | async (0); | |
908 | beneath ()->close (); | |
909 | } | |
910 | ||
abeeff98 LM |
911 | void |
912 | rocm_target_ops::mourn_inferior () | |
913 | { | |
914 | /* FIXME: only unpush on the last activation. */ | |
915 | /* Disengage the ROCm target_ops. */ | |
916 | unpush_target (&rocm_ops); | |
917 | ||
918 | beneath ()->mourn_inferior (); | |
919 | } | |
920 | ||
921 | void | |
922 | rocm_target_ops::fetch_registers (struct regcache *regcache, int regno) | |
923 | { | |
924 | struct gdbarch *gdbarch = regcache->arch (); | |
925 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
926 | ||
927 | /* delegate to the host routines when not on the device */ | |
928 | ||
929 | if (!rocm_is_amdgcn_gdbarch (gdbarch)) | |
930 | { | |
931 | beneath ()->fetch_registers (regcache, regno); | |
932 | return; | |
933 | } | |
934 | ||
935 | inferior *inf = find_inferior_ptid (regcache->ptid ()); | |
936 | amd_dbgapi_process_id_t process_id = get_amd_dbgapi_process_id (inf); | |
937 | amd_dbgapi_wave_id_t wave_id = get_amd_dbgapi_wave_id (regcache->ptid ()); | |
938 | ||
939 | gdb_byte raw[AMDGCN_MAX_REGISTER_SIZE]; | |
940 | ||
941 | amd_dbgapi_status_t status = amd_dbgapi_read_register ( | |
942 | process_id, wave_id, tdep->register_ids[regno], 0, | |
943 | TYPE_LENGTH (register_type (gdbarch, regno)), raw); | |
944 | ||
945 | if (status == AMD_DBGAPI_STATUS_SUCCESS) | |
946 | { | |
947 | regcache->raw_supply (regno, raw); | |
948 | } | |
949 | else if (status != AMD_DBGAPI_STATUS_ERROR_INVALID_REGISTER_ID) | |
950 | { | |
951 | warning (_ ("Couldn't read register %s (#%d)."), | |
952 | gdbarch_register_name (gdbarch, regno), regno); | |
953 | } | |
954 | } | |
955 | ||
956 | void | |
957 | rocm_target_ops::store_registers (struct regcache *regcache, int regno) | |
958 | { | |
959 | struct gdbarch *gdbarch = regcache->arch (); | |
960 | struct gdbarch_tdep *tdep = gdbarch_tdep (gdbarch); | |
961 | gdb_byte raw[AMDGCN_MAX_REGISTER_SIZE]; | |
962 | ||
963 | if (!rocm_is_amdgcn_gdbarch (gdbarch)) | |
964 | { | |
965 | beneath ()->store_registers (regcache, regno); | |
966 | return; | |
967 | } | |
968 | ||
969 | inferior *inf = find_inferior_ptid (regcache->ptid ()); | |
970 | amd_dbgapi_process_id_t process_id = get_amd_dbgapi_process_id (inf); | |
971 | amd_dbgapi_wave_id_t wave_id = get_amd_dbgapi_wave_id (regcache->ptid ()); | |
972 | ||
973 | regcache->raw_collect (regno, &raw); | |
974 | ||
975 | amd_dbgapi_status_t status = amd_dbgapi_write_register ( | |
976 | process_id, wave_id, tdep->register_ids[regno], 0, | |
977 | TYPE_LENGTH (register_type (gdbarch, regno)), raw); | |
978 | ||
979 | if (status != AMD_DBGAPI_STATUS_SUCCESS) | |
980 | { | |
981 | warning (_ ("Couldn't write register %s (#%d)."), | |
982 | gdbarch_register_name (gdbarch, regno), regno); | |
983 | } | |
984 | } | |
985 | ||
986 | /* Fix breakpoints created with an address location while the | |
987 | architecture was set to the host (could be fixed in core GDB). */ | |
988 | ||
989 | static void | |
990 | rocm_target_breakpoint_fixup (struct breakpoint *b) | |
991 | { | |
992 | if (b->location.get () | |
993 | && event_location_type (b->location.get ()) == ADDRESS_LOCATION | |
994 | && gdbarch_bfd_arch_info (b->loc->gdbarch)->arch == bfd_arch_amdgcn | |
995 | && gdbarch_bfd_arch_info (b->gdbarch)->arch != bfd_arch_amdgcn) | |
996 | { | |
997 | b->gdbarch = b->loc->gdbarch; | |
998 | } | |
999 | } | |
1000 | ||
1001 | struct gdbarch * | |
1002 | rocm_target_ops::thread_architecture (ptid_t ptid) | |
1003 | { | |
1004 | static std::result_of<decltype (&ptid_t::tid) (ptid_t)>::type last_tid = 0; | |
1005 | static struct gdbarch *cached_arch = nullptr; | |
1006 | ||
1007 | if (!ptid_is_gpu (ptid)) | |
1008 | return beneath ()->thread_architecture (ptid); | |
1009 | ||
1010 | /* We can cache the gdbarch for a given wave_id (ptid::tid) because | |
1011 | wave IDs are unique, and aren't reused. */ | |
1012 | if (ptid.tid () == last_tid) | |
1013 | return cached_arch; | |
1014 | ||
1015 | amd_dbgapi_process_id_t process_id = get_amd_dbgapi_process_id (); | |
1016 | amd_dbgapi_wave_id_t wave_id = get_amd_dbgapi_wave_id (ptid); | |
1017 | amd_dbgapi_architecture_id_t architecture_id; | |
1018 | ||
1019 | if (amd_dbgapi_wave_get_info (process_id, wave_id, | |
1020 | AMD_DBGAPI_WAVE_INFO_ARCHITECTURE, | |
1021 | sizeof (architecture_id), &architecture_id) | |
1022 | != AMD_DBGAPI_STATUS_SUCCESS) | |
1023 | error (_ ("Couldn't get architecture for wave_%ld"), ptid.tid ()); | |
1024 | ||
1025 | uint32_t elf_amdgpu_machine; | |
1026 | if (amd_dbgapi_architecture_get_info ( | |
1027 | architecture_id, AMD_DBGAPI_ARCHITECTURE_INFO_ELF_AMDGPU_MACHINE, | |
1028 | sizeof (elf_amdgpu_machine), &elf_amdgpu_machine) | |
1029 | != AMD_DBGAPI_STATUS_SUCCESS) | |
1030 | error (_ ("Couldn't get elf_amdgpu_machine for architecture_%ld"), | |
1031 | architecture_id.handle); | |
1032 | ||
1033 | struct gdbarch_info info; | |
1034 | gdbarch_info_init (&info); | |
1035 | ||
1036 | info.bfd_arch_info = bfd_lookup_arch (bfd_arch_amdgcn, elf_amdgpu_machine); | |
1037 | info.byte_order = BFD_ENDIAN_LITTLE; | |
1038 | info.osabi = GDB_OSABI_AMDGPU_HSA; | |
1039 | ||
1040 | last_tid = ptid.tid (); | |
1041 | if (!(cached_arch = gdbarch_find_by_info (info))) | |
1042 | error (_ ("Couldn't get elf_amdgpu_machine (%#x)"), elf_amdgpu_machine); | |
1043 | ||
1044 | return cached_arch; | |
1045 | } | |
1046 | ||
1047 | void | |
1048 | rocm_target_ops::update_thread_list () | |
1049 | { | |
1050 | for (inferior *inf : all_inferiors ()) | |
1051 | { | |
9e275233 | 1052 | amd_dbgapi_process_id_t process_id; |
abeeff98 LM |
1053 | amd_dbgapi_wave_id_t *wave_list; |
1054 | size_t count; | |
1055 | ||
9e275233 LM |
1056 | process_id = get_amd_dbgapi_process_id (inf); |
1057 | if (process_id.handle == AMD_DBGAPI_PROCESS_NONE.handle) | |
1058 | { | |
1059 | /* The inferior may not be attached yet. */ | |
1060 | continue; | |
1061 | } | |
1062 | ||
abeeff98 LM |
1063 | amd_dbgapi_changed_t changed; |
1064 | amd_dbgapi_status_t status; | |
1065 | if ((status | |
1066 | = amd_dbgapi_wave_list (process_id, &count, &wave_list, &changed)) | |
1067 | != AMD_DBGAPI_STATUS_SUCCESS) | |
9e275233 | 1068 | error (_ ("amd_dbgapi_wave_list failed (rc=%d)"), status); |
abeeff98 LM |
1069 | |
1070 | if (changed == AMD_DBGAPI_CHANGED_NO) | |
1071 | continue; | |
1072 | ||
1073 | /* Create a set and free the wave list. */ | |
1074 | std::set<std::result_of<decltype (&ptid_t::tid) (ptid_t)>::type> threads; | |
1075 | for (size_t i = 0; i < count; ++i) | |
1076 | threads.emplace (wave_list[i].handle); | |
1077 | xfree (wave_list); | |
1078 | ||
1079 | /* Then prune the wave_ids that already have a thread_info. */ | |
1080 | for (thread_info *tp : inf->non_exited_threads ()) | |
1081 | if (ptid_is_gpu (tp->ptid)) | |
1082 | threads.erase (tp->ptid.tid ()); | |
1083 | ||
1084 | /* The wave_ids that are left require a new thread_info. */ | |
1085 | for (auto &&tid : threads) | |
1086 | { | |
1087 | ptid_t wave_ptid (inf->pid, 1, tid); | |
9e275233 | 1088 | /* FIXME: is this really needed? |
abeeff98 LM |
1089 | amd_dbgapi_wave_state_t state; |
1090 | ||
1091 | if (amd_dbgapi_wave_get_info ( | |
1092 | process_id, get_amd_dbgapi_wave_id (wave_ptid), | |
1093 | AMD_DBGAPI_WAVE_INFO_STATE, sizeof (state), &state) | |
1094 | != AMD_DBGAPI_STATUS_SUCCESS) | |
9e275233 | 1095 | continue;*/ |
abeeff98 LM |
1096 | |
1097 | add_thread_silent (wave_ptid); | |
1098 | set_running (wave_ptid, 1); | |
1099 | set_executing (wave_ptid, 1); | |
1100 | } | |
1101 | } | |
1102 | ||
1103 | /* Give the beneath target a chance to do extra processing. */ | |
1104 | this->beneath ()->update_thread_list (); | |
1105 | } | |
1106 | ||
1107 | static void | |
1108 | rocm_target_solib_loaded (struct so_list *solib) | |
1109 | { | |
1110 | /* Notify the amd_dbgapi that a shared library has been loaded. */ | |
1111 | for (auto &&value : get_rocm_inferior_info ()->notify_solib_map) | |
1112 | /* TODO: If we want to support file name wildcards, change this code. */ | |
1113 | if (::strstr (solib->so_original_name, value.second.compare.c_str ()) | |
1114 | && !value.second.is_loaded) | |
1115 | { | |
1116 | value.second.solib = solib; | |
1117 | value.second.is_loaded = true; | |
1118 | ||
1119 | amd_dbgapi_report_shared_library ( | |
1120 | get_amd_dbgapi_process_id (), | |
1121 | amd_dbgapi_shared_library_id_t{ value.first }, | |
1122 | AMD_DBGAPI_SHARED_LIBRARY_STATE_LOADED); | |
1123 | } | |
1124 | } | |
1125 | ||
1126 | static void | |
1127 | rocm_target_solib_unloaded (struct so_list *solib) | |
1128 | { | |
1129 | /* Notify the amd_dbgapi that a shared library will unload. */ | |
1130 | for (auto &&value : get_rocm_inferior_info ()->notify_solib_map) | |
1131 | /* TODO: If we want to support file name wildcards, change this code. */ | |
1132 | if (::strstr (solib->so_original_name, value.second.compare.c_str ()) | |
1133 | && value.second.is_loaded) | |
1134 | { | |
1135 | struct rocm_inferior_info *info = get_rocm_inferior_info (); | |
1136 | ||
1137 | amd_dbgapi_report_shared_library ( | |
1138 | info->process_id, amd_dbgapi_shared_library_id_t{ value.first }, | |
1139 | AMD_DBGAPI_SHARED_LIBRARY_STATE_UNLOADED); | |
1140 | ||
1141 | /* Delete breakpoints that were left inserted in this shared library. | |
1142 | */ | |
1143 | for (auto it = info->breakpoint_map.begin (); | |
1144 | it != info->breakpoint_map.end ();) | |
1145 | if (solib_contains_address_p (solib, it->second->loc->address)) | |
1146 | { | |
1147 | warning (_ ("breakpoint_%ld is still inserted after " | |
1148 | "shared_library_%ld was unloaded"), | |
1149 | it->first, value.first); | |
1150 | delete_breakpoint (it->second); | |
1151 | it = info->breakpoint_map.erase (it); | |
1152 | } | |
1153 | else | |
1154 | ++it; | |
1155 | ||
1156 | value.second.solib = nullptr; | |
1157 | value.second.is_loaded = false; | |
1158 | } | |
1159 | } | |
1160 | ||
1161 | static void | |
1162 | rocm_target_inferior_created (struct target_ops *target, int from_tty) | |
1163 | { | |
1164 | struct inferior *inf = current_inferior (); | |
1165 | auto *info = get_rocm_inferior_info (inf); | |
1166 | amd_dbgapi_status_t status; | |
1167 | ||
1168 | if (!target_can_async_p ()) | |
1169 | { | |
1170 | warning ( | |
1171 | _ ("ROCm-GDB requires target-async, GPU debugging is disabled")); | |
1172 | return; | |
1173 | } | |
1174 | ||
1175 | gdb_assert (info->wave_stop_events.empty ()); | |
1176 | ||
1177 | status = amd_dbgapi_process_attach (inf, &info->process_id); | |
1178 | ||
1179 | if (status == AMD_DBGAPI_STATUS_ERROR_VERSION_MISMATCH) | |
1180 | warning (_ ("The version of the kernel driver does not match the version " | |
1181 | "required by the ROCm debugger library")); | |
1182 | ||
1183 | if (status != AMD_DBGAPI_STATUS_SUCCESS) | |
1184 | { | |
1185 | warning (_ ("Could not attach to process %d"), inf->pid); | |
1186 | return; | |
1187 | } | |
1188 | ||
1189 | if (amd_dbgapi_process_get_info (info->process_id, | |
1190 | AMD_DBGAPI_PROCESS_INFO_NOTIFIER, | |
1191 | sizeof (info->notifier), &info->notifier) | |
1192 | != AMD_DBGAPI_STATUS_SUCCESS) | |
1193 | { | |
1194 | warning (_ ("Could not retrieve process %d's notifier"), inf->pid); | |
1195 | amd_dbgapi_process_detach (info->process_id); | |
1196 | return; | |
1197 | } | |
1198 | ||
1199 | /* We add a file handler for events returned by the debugger api. We'll use | |
1200 | this handler to signal our async handler that events are available. */ | |
1201 | add_file_handler ( | |
1202 | info->notifier, | |
1203 | [] (int error, gdb_client_data client_data) { | |
1204 | auto info_ = static_cast<struct rocm_inferior_info *> (client_data); | |
1205 | int ret; | |
1206 | ||
1207 | /* Drain the notifier pipe. */ | |
1208 | do | |
1209 | { | |
1210 | char buf; | |
1211 | ret = read (info_->notifier, &buf, 1); | |
1212 | } | |
1213 | while (ret >= 0 || (ret == -1 && errno == EINTR)); | |
1214 | ||
1215 | /* Signal our async handler. */ | |
1216 | async_file_mark (); | |
1217 | }, | |
1218 | info); | |
1219 | ||
1220 | /* Attaching to the inferior may have generated runtime events, process | |
1221 | them now. */ | |
1222 | rocm_process_event_queue (); | |
1223 | } | |
1224 | ||
1225 | static void | |
1226 | rocm_target_inferior_exit (struct inferior *inf) | |
1227 | { | |
1228 | auto *info = get_rocm_inferior_info (inf); | |
243f18ba | 1229 | info->has_exited = true; |
abeeff98 LM |
1230 | |
1231 | amd_dbgapi_deactivated.notify (); | |
1232 | ||
b8ff49b7 LM |
1233 | if (info->notifier != -1) |
1234 | delete_file_handler (info->notifier); | |
abeeff98 LM |
1235 | |
1236 | amd_dbgapi_process_detach (info->process_id); | |
1237 | ||
1238 | /* Delete the breakpoints that are still active. */ | |
1239 | for (auto &&value : info->breakpoint_map) | |
1240 | delete_breakpoint (value.second); | |
1241 | ||
1242 | rocm_inferior_data.clear (inf); | |
1243 | } | |
1244 | ||
1245 | static cli_style_option warning_style ("rocm_warning", ui_file_style::RED); | |
1246 | static cli_style_option info_style ("rocm_info", ui_file_style::GREEN); | |
1247 | static cli_style_option verbose_style ("rocm_verbose", ui_file_style::BLUE); | |
1248 | ||
1249 | static amd_dbgapi_callbacks_t dbgapi_callbacks = { | |
1250 | /* allocate_memory. */ | |
0cf995bc | 1251 | .allocate_memory = malloc, |
abeeff98 LM |
1252 | |
1253 | /* deallocate_memory. */ | |
0cf995bc | 1254 | .deallocate_memory = free, |
abeeff98 LM |
1255 | |
1256 | /* get_os_pid. */ | |
1257 | .get_os_pid = [] (amd_dbgapi_client_process_id_t client_process_id, | |
1258 | pid_t *pid) -> amd_dbgapi_status_t { | |
1259 | inferior *inf = static_cast<inferior *> (client_process_id); | |
243f18ba LM |
1260 | struct rocm_inferior_info *info = get_rocm_inferior_info (inf); |
1261 | ||
1262 | if (info->has_exited) | |
1263 | return AMD_DBGAPI_STATUS_ERROR_PROCESS_EXITED; | |
abeeff98 LM |
1264 | |
1265 | *pid = inf->pid; | |
1266 | return AMD_DBGAPI_STATUS_SUCCESS; | |
1267 | }, | |
1268 | ||
1269 | /* enable_notify_shared_library callback. */ | |
1270 | .enable_notify_shared_library | |
1271 | = [] (amd_dbgapi_client_process_id_t client_process_id, | |
1272 | const char *library_name, amd_dbgapi_shared_library_id_t library_id, | |
1273 | amd_dbgapi_shared_library_state_t *library_state) | |
1274 | -> amd_dbgapi_status_t { | |
1275 | inferior *inf = static_cast<inferior *> (client_process_id); | |
1276 | struct rocm_inferior_info *info = get_rocm_inferior_info (inf); | |
1277 | ||
1278 | if (!library_name || !library_state) | |
1279 | return AMD_DBGAPI_STATUS_ERROR_INVALID_ARGUMENT; | |
1280 | ||
1281 | if (info->notify_solib_map.find (library_id.handle) | |
1282 | != info->notify_solib_map.end ()) | |
1283 | { | |
1284 | /* This library id is already registered. */ | |
1285 | return AMD_DBGAPI_STATUS_ERROR; | |
1286 | } | |
1287 | ||
1288 | /* Check whether the library is already loaded. */ | |
1289 | bool is_loaded = false; | |
1290 | struct so_list *solib; | |
1291 | for (solib = inf->pspace->so_list; solib; solib = solib->next) | |
1292 | if (::strstr (solib->so_original_name, library_name)) | |
1293 | { | |
1294 | is_loaded = true; | |
1295 | break; | |
1296 | } | |
1297 | ||
1298 | /* Check that the library_name is valid. If must not be empty, and | |
1299 | should not have wildcard characters. */ | |
1300 | if (*library_name == '\0' | |
1301 | || std::string (library_name).find_first_of ("*?[]") | |
1302 | != std::string::npos) | |
1303 | return AMD_DBGAPI_STATUS_ERROR_INVALID_ARGUMENT; | |
1304 | ||
1305 | /* Add a new entry in the notify_solib_map. */ | |
1306 | if (!info->notify_solib_map | |
1307 | .emplace (std::piecewise_construct, | |
1308 | std::forward_as_tuple (library_id.handle), | |
1309 | std::forward_as_tuple (rocm_notify_shared_library_info{ | |
1310 | library_name, solib, is_loaded })) | |
1311 | .second) | |
1312 | return AMD_DBGAPI_STATUS_ERROR; | |
1313 | ||
1314 | *library_state = is_loaded ? AMD_DBGAPI_SHARED_LIBRARY_STATE_LOADED | |
1315 | : AMD_DBGAPI_SHARED_LIBRARY_STATE_UNLOADED; | |
1316 | ||
1317 | return AMD_DBGAPI_STATUS_SUCCESS; | |
1318 | }, | |
1319 | ||
1320 | /* disable_notify_shared_library callback. */ | |
1321 | .disable_notify_shared_library | |
1322 | = [] (amd_dbgapi_client_process_id_t client_process_id, | |
1323 | amd_dbgapi_shared_library_id_t library_id) -> amd_dbgapi_status_t { | |
1324 | inferior *inf = static_cast<inferior *> (client_process_id); | |
1325 | struct rocm_inferior_info *info = get_rocm_inferior_info (inf); | |
1326 | ||
1327 | auto it = info->notify_solib_map.find (library_id.handle); | |
1328 | if (it == info->notify_solib_map.end ()) | |
1329 | return AMD_DBGAPI_STATUS_ERROR_INVALID_SHARED_LIBRARY_ID; | |
1330 | ||
1331 | info->notify_solib_map.erase (it); | |
1332 | return AMD_DBGAPI_STATUS_SUCCESS; | |
1333 | }, | |
1334 | ||
1335 | /* get_symbol_address callback. */ | |
1336 | .get_symbol_address = | |
1337 | [] (amd_dbgapi_client_process_id_t client_process_id, | |
1338 | amd_dbgapi_shared_library_id_t library_id, const char *symbol_name, | |
1339 | amd_dbgapi_global_address_t *address) { | |
1340 | inferior *inf = static_cast<inferior *> (client_process_id); | |
1341 | struct rocm_inferior_info *info = get_rocm_inferior_info (inf); | |
1342 | ||
1343 | auto it = info->notify_solib_map.find (library_id.handle); | |
1344 | if (it == info->notify_solib_map.end ()) | |
1345 | return AMD_DBGAPI_STATUS_ERROR_INVALID_SHARED_LIBRARY_ID; | |
1346 | ||
1347 | struct so_list *solib = it->second.solib; | |
1348 | if (!solib) | |
1349 | return AMD_DBGAPI_STATUS_ERROR_LIBRARY_NOT_LOADED; | |
1350 | ||
1351 | solib_read_symbols (solib, 0); | |
1352 | gdb_assert (solib->objfile); | |
1353 | ||
1354 | struct bound_minimal_symbol msymbol | |
1355 | = lookup_minimal_symbol (symbol_name, NULL, solib->objfile); | |
1356 | ||
1357 | if (!msymbol.minsym || BMSYMBOL_VALUE_ADDRESS (msymbol) == 0) | |
1358 | return AMD_DBGAPI_STATUS_ERROR_SYMBOL_NOT_FOUND; | |
1359 | ||
1360 | *address = BMSYMBOL_VALUE_ADDRESS (msymbol); | |
1361 | return AMD_DBGAPI_STATUS_SUCCESS; | |
1362 | }, | |
1363 | ||
1364 | /* set_breakpoint callback. */ | |
1365 | .add_breakpoint = | |
1366 | [] (amd_dbgapi_client_process_id_t client_process_id, | |
1367 | amd_dbgapi_shared_library_id_t shared_library_id, | |
1368 | amd_dbgapi_global_address_t address, | |
1369 | amd_dbgapi_breakpoint_id_t breakpoint_id) { | |
1370 | inferior *inf = static_cast<inferior *> (client_process_id); | |
1371 | struct rocm_inferior_info *info = get_rocm_inferior_info (inf); | |
1372 | ||
1373 | /* Initialize the breakpoint ops lazily since we depend on | |
1374 | bkpt_breakpoint_ops and we can't control the order in which | |
1375 | initializers are called. */ | |
1376 | if (rocm_breakpoint_ops.check_status == NULL) | |
1377 | { | |
1378 | rocm_breakpoint_ops = bkpt_breakpoint_ops; | |
1379 | rocm_breakpoint_ops.check_status = rocm_breakpoint_check_status; | |
9e275233 | 1380 | rocm_breakpoint_ops.re_set = rocm_breakpoint_re_set; |
abeeff98 LM |
1381 | } |
1382 | ||
1383 | auto it = info->breakpoint_map.find (breakpoint_id.handle); | |
1384 | if (it != info->breakpoint_map.end ()) | |
1385 | return AMD_DBGAPI_STATUS_ERROR_INVALID_BREAKPOINT_ID; | |
1386 | ||
1387 | /* Create a new breakpoint. */ | |
1388 | struct obj_section *section = find_pc_section (address); | |
1389 | if (!section || !section->objfile) | |
1390 | return AMD_DBGAPI_STATUS_ERROR; | |
1391 | ||
1392 | event_location_up location | |
1393 | = new_address_location (address, nullptr, 0); | |
1394 | if (!create_breakpoint ( | |
1395 | get_objfile_arch (section->objfile), location.get (), | |
1396 | /*cond_string*/ NULL, /*thread*/ -1, /*extra_sring*/ NULL, | |
1397 | /*parse_extra*/ 0, /*tempflag*/ 0, /*bptype*/ bp_breakpoint, | |
1398 | /*ignore_count*/ 0, /*pending_break*/ AUTO_BOOLEAN_FALSE, | |
1399 | /*ops*/ &rocm_breakpoint_ops, /*from_tty*/ 0, | |
1400 | /*enabled*/ 1, /*internal*/ 1, /*flags*/ 0)) | |
1401 | return AMD_DBGAPI_STATUS_ERROR; | |
1402 | ||
1403 | /* Find our breakpoint in the breakpoint list. */ | |
1404 | auto bp_loc = std::make_pair (inf->aspace, address); | |
1405 | auto bp = breakpoint_find_if ( | |
1406 | [] (struct breakpoint *b, void *data) { | |
1407 | auto *arg = static_cast<decltype (&bp_loc)> (data); | |
1408 | if (b->ops == &rocm_breakpoint_ops && b->loc | |
1409 | && b->loc->pspace->aspace == arg->first | |
1410 | && b->loc->address == arg->second) | |
1411 | return 1; | |
1412 | return 0; | |
1413 | }, | |
1414 | reinterpret_cast<void *> (&bp_loc)); | |
1415 | ||
1416 | if (!bp) | |
1417 | error (_ ("Could not find breakpoint")); | |
1418 | ||
1419 | info->breakpoint_map.emplace (breakpoint_id.handle, bp); | |
1420 | return AMD_DBGAPI_STATUS_SUCCESS; | |
1421 | }, | |
1422 | ||
1423 | /* remove_breakpoint callback. */ | |
1424 | .remove_breakpoint = | |
1425 | [] (amd_dbgapi_client_process_id_t client_process_id, | |
1426 | amd_dbgapi_breakpoint_id_t breakpoint_id) { | |
1427 | inferior *inf = static_cast<inferior *> (client_process_id); | |
1428 | struct rocm_inferior_info *info = get_rocm_inferior_info (inf); | |
1429 | ||
1430 | auto it = info->breakpoint_map.find (breakpoint_id.handle); | |
1431 | if (it == info->breakpoint_map.end ()) | |
1432 | return AMD_DBGAPI_STATUS_ERROR_INVALID_BREAKPOINT_ID; | |
1433 | ||
1434 | delete_breakpoint (it->second); | |
1435 | info->breakpoint_map.erase (it); | |
1436 | ||
1437 | return AMD_DBGAPI_STATUS_SUCCESS; | |
1438 | }, | |
1439 | ||
1440 | /* set_breakpoint_state callback. */ | |
1441 | .set_breakpoint_state = | |
1442 | [] (amd_dbgapi_client_process_id_t client_process_id, | |
1443 | amd_dbgapi_breakpoint_id_t breakpoint_id, | |
1444 | amd_dbgapi_breakpoint_state_t breakpoint_state) { | |
1445 | inferior *inf = static_cast<inferior *> (client_process_id); | |
1446 | struct rocm_inferior_info *info = get_rocm_inferior_info (inf); | |
1447 | ||
1448 | auto it = info->breakpoint_map.find (breakpoint_id.handle); | |
1449 | if (it == info->breakpoint_map.end ()) | |
1450 | return AMD_DBGAPI_STATUS_ERROR_INVALID_BREAKPOINT_ID; | |
1451 | ||
1452 | if (breakpoint_state == AMD_DBGAPI_BREAKPOINT_STATE_ENABLE) | |
1453 | it->second->enable_state = bp_enabled; | |
1454 | else if (breakpoint_state == AMD_DBGAPI_BREAKPOINT_STATE_DISABLE) | |
1455 | it->second->enable_state = bp_disabled; | |
1456 | else | |
1457 | return AMD_DBGAPI_STATUS_ERROR_INVALID_ARGUMENT; | |
1458 | ||
1459 | return AMD_DBGAPI_STATUS_SUCCESS; | |
1460 | }, | |
1461 | ||
1462 | .log_message | |
1463 | = [] (amd_dbgapi_log_level_t level, const char *message) -> void { | |
1464 | gdb::optional<target_terminal::scoped_restore_terminal_state> tstate; | |
1465 | ||
1466 | if (level > get_debug_amd_dbgapi_log_level ()) | |
1467 | return; | |
1468 | ||
1469 | if (target_supports_terminal_ours ()) | |
1470 | { | |
1471 | tstate.emplace (); | |
1472 | target_terminal::ours_for_output (); | |
1473 | } | |
1474 | ||
1475 | if (filtered_printing_initialized ()) | |
1476 | wrap_here (""); | |
1477 | ||
1478 | struct ui_file *out_file | |
1479 | = (level >= AMD_DBGAPI_LOG_LEVEL_INFO) ? gdb_stdlog : gdb_stderr; | |
1480 | ||
1481 | switch (level) | |
1482 | { | |
1483 | case AMD_DBGAPI_LOG_LEVEL_FATAL_ERROR: | |
1484 | fputs_unfiltered ("[amd-dbgapi]: ", out_file); | |
1485 | break; | |
1486 | case AMD_DBGAPI_LOG_LEVEL_WARNING: | |
1487 | fputs_styled ("[amd-dbgapi]: ", warning_style.style (), out_file); | |
1488 | break; | |
1489 | case AMD_DBGAPI_LOG_LEVEL_INFO: | |
1490 | fputs_styled ("[amd-dbgapi]: ", info_style.style (), out_file); | |
1491 | break; | |
1492 | case AMD_DBGAPI_LOG_LEVEL_VERBOSE: | |
1493 | fputs_styled ("[amd-dbgapi]: ", verbose_style.style (), out_file); | |
1494 | break; | |
1495 | } | |
1496 | ||
1497 | fputs_unfiltered (message, out_file); | |
1498 | fputs_unfiltered ("\n", out_file); | |
1499 | } | |
1500 | }; | |
1501 | ||
1502 | /* Implementation of `_wave_id' variable. */ | |
1503 | ||
1504 | static struct value * | |
1505 | rocm_wave_id_make_value (struct gdbarch *gdbarch, struct internalvar *var, | |
1506 | void *ignore) | |
1507 | { | |
1508 | if (ptid_is_gpu (inferior_ptid)) | |
1509 | { | |
1510 | amd_dbgapi_process_id_t process_id = get_amd_dbgapi_process_id (); | |
1511 | amd_dbgapi_wave_id_t wave_id = get_amd_dbgapi_wave_id (inferior_ptid); | |
1512 | uint32_t group_ids[3], wave_in_group; | |
1513 | ||
1514 | if (amd_dbgapi_wave_get_info (process_id, wave_id, | |
1515 | AMD_DBGAPI_WAVE_INFO_WORK_GROUP_COORD, | |
1516 | sizeof (group_ids), &group_ids) | |
1517 | == AMD_DBGAPI_STATUS_SUCCESS | |
1518 | && amd_dbgapi_wave_get_info ( | |
1519 | process_id, wave_id, | |
1520 | AMD_DBGAPI_WAVE_INFO_WAVE_NUMBER_IN_WORK_GROUP, | |
1521 | sizeof (wave_in_group), &wave_in_group) | |
1522 | == AMD_DBGAPI_STATUS_SUCCESS) | |
1523 | { | |
1524 | std::string wave_id_str | |
1525 | = string_printf ("(%d,%d,%d)/%d", group_ids[2], group_ids[1], | |
1526 | group_ids[0], wave_in_group); | |
1527 | ||
1528 | return value_cstring (wave_id_str.data (), wave_id_str.length () + 1, | |
1529 | builtin_type (gdbarch)->builtin_char); | |
1530 | } | |
1531 | } | |
1532 | ||
1533 | return allocate_value (builtin_type (gdbarch)->builtin_void); | |
1534 | } | |
1535 | ||
1536 | static const struct internalvar_funcs rocm_wave_id_funcs | |
1537 | = { rocm_wave_id_make_value, NULL, NULL }; | |
1538 | ||
1539 | /* List of set/show debug amd_dbgapi commands. */ | |
1540 | struct cmd_list_element *set_debug_amd_dbgapi_list; | |
1541 | struct cmd_list_element *show_debug_amd_dbgapi_list; | |
1542 | ||
1543 | static void | |
1544 | set_debug_amd_dbgapi (const char *arg, int from_tty) | |
1545 | { | |
1546 | help_list (set_debug_amd_dbgapi_list, "set debug amd-dbgapi ", | |
1547 | (enum command_class) - 1, gdb_stdout); | |
1548 | } | |
1549 | ||
1550 | static void | |
1551 | show_debug_amd_dbgapi (const char *args, int from_tty) | |
1552 | { | |
1553 | cmd_show_list (show_debug_amd_dbgapi_list, from_tty, ""); | |
1554 | } | |
1555 | ||
1556 | constexpr char amd_dbgapi_log_level_off[] = "off"; | |
1557 | constexpr char amd_dbgapi_log_level_error[] = "error"; | |
1558 | constexpr char amd_dbgapi_log_level_warning[] = "warning"; | |
1559 | constexpr char amd_dbgapi_log_level_info[] = "info"; | |
1560 | constexpr char amd_dbgapi_log_level_verbose[] = "verbose"; | |
1561 | ||
1562 | constexpr const char *debug_amd_dbgapi_log_level_enums[] | |
1563 | = { [AMD_DBGAPI_LOG_LEVEL_NONE] = amd_dbgapi_log_level_off, | |
1564 | [AMD_DBGAPI_LOG_LEVEL_FATAL_ERROR] = amd_dbgapi_log_level_error, | |
1565 | [AMD_DBGAPI_LOG_LEVEL_WARNING] = amd_dbgapi_log_level_warning, | |
1566 | [AMD_DBGAPI_LOG_LEVEL_INFO] = amd_dbgapi_log_level_info, | |
1567 | [AMD_DBGAPI_LOG_LEVEL_VERBOSE] = amd_dbgapi_log_level_verbose, | |
1568 | nullptr }; | |
1569 | ||
1570 | static const char *debug_amd_dbgapi_log_level = amd_dbgapi_log_level_error; | |
1571 | ||
1572 | static amd_dbgapi_log_level_t | |
1573 | get_debug_amd_dbgapi_log_level () | |
1574 | { | |
1575 | size_t pos; | |
1576 | for (pos = 0; debug_amd_dbgapi_log_level_enums[pos]; ++pos) | |
1577 | if (debug_amd_dbgapi_log_level == debug_amd_dbgapi_log_level_enums[pos]) | |
1578 | break; | |
1579 | ||
1580 | gdb_assert (debug_amd_dbgapi_log_level_enums[pos]); | |
1581 | return static_cast<amd_dbgapi_log_level_t> (pos); | |
1582 | } | |
1583 | ||
1584 | static void | |
1585 | set_debug_amd_dbgapi_log_level (const char *args, int from_tty, | |
1586 | struct cmd_list_element *c) | |
1587 | { | |
1588 | amd_dbgapi_set_log_level (get_debug_amd_dbgapi_log_level ()); | |
1589 | } | |
1590 | ||
1591 | static void | |
1592 | show_debug_amd_dbgapi_log_level (struct ui_file *file, int from_tty, | |
1593 | struct cmd_list_element *c, | |
1594 | const char *value) | |
1595 | { | |
1596 | fprintf_filtered (file, _ ("The amd-dbgapi log level is %s.\n"), value); | |
1597 | } | |
1598 | ||
1599 | static void | |
1600 | info_agents_command (const char *args, int from_tty) | |
1601 | { | |
1602 | amd_dbgapi_process_id_t process_id = get_amd_dbgapi_process_id (); | |
1603 | struct ui_out *uiout = current_uiout; | |
1604 | amd_dbgapi_status_t status; | |
1605 | ||
1606 | amd_dbgapi_agent_id_t *agent_list; | |
1607 | size_t count = 0; | |
1608 | ||
1609 | if (process_id.handle != AMD_DBGAPI_PROCESS_NONE.handle | |
1610 | && (status | |
1611 | = amd_dbgapi_agent_list (process_id, &count, &agent_list, nullptr)) | |
1612 | != AMD_DBGAPI_STATUS_SUCCESS) | |
1613 | error (_ ("amd_dbgapi_agent_list failed (rc=%d)"), status); | |
1614 | ||
1615 | if (!count && !uiout->is_mi_like_p ()) | |
1616 | { | |
1617 | uiout->field_string (NULL, | |
1618 | _ ("No agents are currently active.\n")); | |
1619 | return; | |
1620 | } | |
1621 | ||
1622 | /* Calculate the maximum size needed to print the agents names. */ | |
1623 | std::vector<std::string> agent_names (count); | |
1624 | ||
1625 | size_t max_name_len = 0; | |
1626 | for (size_t i = 0; i < count; ++i) | |
1627 | { | |
1628 | char *agent_name; | |
1629 | ||
1630 | if ((status = amd_dbgapi_agent_get_info ( | |
1631 | process_id, agent_list[i], AMD_DBGAPI_AGENT_INFO_NAME, | |
1632 | sizeof (agent_name), &agent_name)) | |
1633 | != AMD_DBGAPI_STATUS_SUCCESS) | |
1634 | { | |
1635 | if (status == AMD_DBGAPI_STATUS_ERROR_INVALID_AGENT_ID) | |
1636 | agent_names[i] = "N/A"; | |
1637 | else | |
1638 | error (_ ("amd_dbgapi_agent_get_info failed (rc=%d"), status); | |
1639 | } | |
1640 | else | |
1641 | { | |
1642 | agent_names[i] = agent_name; | |
1643 | xfree (agent_name); | |
1644 | } | |
1645 | ||
1646 | max_name_len = std::max (max_name_len, agent_names[i].size ()); | |
1647 | } | |
1648 | ||
1649 | /* Header: */ | |
1650 | ui_out_emit_table table_emmitter (uiout, 7, count, "InfoRocmDevicesTable"); | |
1651 | ||
1652 | uiout->table_header (2, ui_left, "agent_id", "Id"); | |
1653 | uiout->table_header (8, ui_left, "location_id", "PCI Slot"); | |
1654 | uiout->table_header (std::max (11ul, max_name_len), ui_left, "name", | |
1655 | "Device Name"); | |
1656 | uiout->table_header (14, ui_left, "num_se", "Shader Engines"); | |
1657 | uiout->table_header (13, ui_left, "num_cu", "Compute Units"); | |
1658 | uiout->table_header (7, ui_left, "simd", "SIMD/CU"); | |
1659 | uiout->table_header (15, ui_left, "waves", "Wavefronts/SIMD"); | |
1660 | uiout->table_body (); | |
1661 | ||
1662 | /* Rows: */ | |
1663 | for (size_t i = 0; i < count; ++i) | |
1664 | { | |
1665 | ui_out_emit_tuple tuple_emitter (uiout, "InfoRocmDevicesRow"); | |
1666 | ||
1667 | /* agent */ | |
1668 | uiout->field_signed ("agent_id", agent_list[i].handle); | |
1669 | ||
1670 | /* location */ | |
1671 | uint32_t location_id; | |
1672 | if ((status = amd_dbgapi_agent_get_info ( | |
1673 | process_id, agent_list[i], AMD_DBGAPI_AGENT_INFO_PCIE_SLOT, | |
1674 | sizeof (location_id), &location_id)) | |
1675 | != AMD_DBGAPI_STATUS_SUCCESS) | |
1676 | { | |
1677 | if (status == AMD_DBGAPI_STATUS_ERROR_INVALID_AGENT_ID) | |
1678 | uiout->field_string ("location_id", "N/A"); | |
1679 | else | |
1680 | error (_ ("amd_dbgapi_agent_get_info failed (rc=%d"), status); | |
1681 | } | |
1682 | else | |
1683 | uiout->field_string ( | |
1684 | "location_id", | |
1685 | string_printf ("%02x:%02x.%d", (location_id >> 8) & 0xFF, | |
1686 | (location_id >> 3) & 0x1F, location_id & 0x7)); | |
1687 | ||
1688 | /* name */ | |
1689 | uiout->field_string ("name", agent_names[i]); | |
1690 | ||
1691 | /* num_se, num_cu, simd, waves */ | |
1692 | ||
1693 | #define UIOUT_FIELD_INT(name, query) \ | |
1694 | uint32_t name; \ | |
1695 | if ((status = amd_dbgapi_agent_get_info (process_id, agent_list[i], query, \ | |
1696 | sizeof (name), &name)) \ | |
1697 | != AMD_DBGAPI_STATUS_SUCCESS) \ | |
1698 | { \ | |
1699 | if (status == AMD_DBGAPI_STATUS_ERROR_INVALID_AGENT_ID) \ | |
1700 | uiout->field_string (#name, "N/A"); \ | |
1701 | else \ | |
1702 | error (_ ("amd_dbgapi_agent_get_info failed (rc=%d"), status); \ | |
1703 | } \ | |
1704 | else \ | |
1705 | uiout->field_signed (#name, name); | |
1706 | ||
1707 | UIOUT_FIELD_INT (num_se, AMD_DBGAPI_AGENT_INFO_SHADER_ENGINE_COUNT); | |
1708 | UIOUT_FIELD_INT (num_cu, AMD_DBGAPI_AGENT_INFO_COMPUTE_UNIT_COUNT); | |
1709 | UIOUT_FIELD_INT (simd, AMD_DBGAPI_AGENT_INFO_NUM_SIMD_PER_COMPUTE_UNIT); | |
1710 | UIOUT_FIELD_INT (waves, AMD_DBGAPI_AGENT_INFO_MAX_WAVES_PER_SIMD); | |
1711 | ||
1712 | #undef UIOUT_FIELD_INT | |
1713 | ||
1714 | uiout->text ("\n"); | |
1715 | } | |
1716 | ||
1717 | xfree (agent_list); | |
1718 | gdb_flush (gdb_stdout); | |
1719 | } | |
1720 | ||
1721 | /* -Wmissing-prototypes */ | |
1722 | extern initialize_file_ftype _initialize_rocm_tdep; | |
1723 | ||
1724 | void | |
1725 | _initialize_rocm_tdep (void) | |
1726 | { | |
48e5c3f7 LM |
1727 | /* Make sure the loaded debugger library version is greater than or equal to |
1728 | the one used to build ROCgdb. */ | |
1729 | uint32_t major, minor, patch; | |
1730 | amd_dbgapi_get_version (&major, &minor, &patch); | |
1731 | if (major != AMD_DBGAPI_VERSION_MAJOR || minor < AMD_DBGAPI_VERSION_MINOR) | |
1732 | error ( | |
1733 | _ ("amd-dbgapi library version mismatch, got %d.%d.%d, need %d.%d+"), | |
1734 | major, minor, patch, AMD_DBGAPI_VERSION_MAJOR, | |
1735 | AMD_DBGAPI_VERSION_MINOR); | |
1736 | ||
abeeff98 | 1737 | /* Initialize the ROCm Debug API. */ |
48e5c3f7 LM |
1738 | amd_dbgapi_status_t status = amd_dbgapi_initialize (&dbgapi_callbacks); |
1739 | if (status != AMD_DBGAPI_STATUS_SUCCESS) | |
1740 | error (_ ("amd-dbgapi failed to initialize (rc=%d)"), status); | |
abeeff98 LM |
1741 | |
1742 | /* Set the initial log level. */ | |
1743 | amd_dbgapi_set_log_level (get_debug_amd_dbgapi_log_level ()); | |
1744 | ||
1745 | /* Install observers. */ | |
1746 | gdb::observers::breakpoint_created.attach (rocm_target_breakpoint_fixup); | |
1747 | gdb::observers::solib_loaded.attach (rocm_target_solib_loaded); | |
1748 | gdb::observers::solib_unloaded.attach (rocm_target_solib_unloaded); | |
1749 | gdb::observers::inferior_created.attach (rocm_target_inferior_created); | |
1750 | gdb::observers::inferior_exit.attach (rocm_target_inferior_exit); | |
1751 | ||
1752 | amd_dbgapi_activated.attach (rocm_target_dbgapi_activated); | |
1753 | amd_dbgapi_deactivated.attach (rocm_target_dbgapi_deactivated); | |
1754 | ||
1755 | create_internalvar_type_lazy ("_wave_id", &rocm_wave_id_funcs, NULL); | |
1756 | ||
1757 | add_prefix_cmd ( | |
1758 | "amd-dbgapi", no_class, set_debug_amd_dbgapi, | |
1759 | _ ("Generic command for setting amd-dbgapi debugging flags"), | |
1760 | &set_debug_amd_dbgapi_list, "set debug amd-dbgapi ", 0, &setdebuglist); | |
1761 | ||
1762 | add_prefix_cmd ( | |
1763 | "amd-dbgapi", no_class, show_debug_amd_dbgapi, | |
1764 | _ ("Generic command for showing amd-dbgapi debugging flags"), | |
1765 | &show_debug_amd_dbgapi_list, "show debug amd-dbgapi ", 0, | |
1766 | &showdebuglist); | |
1767 | ||
1768 | add_setshow_enum_cmd ( | |
1769 | "log-level", class_maintenance, debug_amd_dbgapi_log_level_enums, | |
1770 | &debug_amd_dbgapi_log_level, _ ("Set the amd-dbgapi log level."), | |
1771 | _ ("Show the amd-dbgapi log level."), | |
1772 | _ ("off == no logging is enabled\n" | |
1773 | "error == fatal errors are reported\n" | |
1774 | "warning == fatal errors and warnings are reported\n" | |
1775 | "info == fatal errors, warnings, and info messages are reported\n" | |
1776 | "verbose == all messages are reported"), | |
1777 | set_debug_amd_dbgapi_log_level, show_debug_amd_dbgapi_log_level, | |
1778 | &set_debug_amd_dbgapi_list, &show_debug_amd_dbgapi_list); | |
1779 | ||
1780 | add_cmd ("agents", class_info, info_agents_command, | |
1781 | _ ("Info about currently active agents."), &infolist); | |
1782 | } |