diff options
Diffstat (limited to 'include/trace/ftrace.h')
-rw-r--r-- | include/trace/ftrace.h | 289 |
1 files changed, 84 insertions, 205 deletions
diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h index c6fe03e902ca..ea6f9d4a20e9 100644 --- a/include/trace/ftrace.h +++ b/include/trace/ftrace.h | |||
@@ -65,7 +65,8 @@ | |||
65 | }; | 65 | }; |
66 | #undef DEFINE_EVENT | 66 | #undef DEFINE_EVENT |
67 | #define DEFINE_EVENT(template, name, proto, args) \ | 67 | #define DEFINE_EVENT(template, name, proto, args) \ |
68 | static struct ftrace_event_call event_##name | 68 | static struct ftrace_event_call \ |
69 | __attribute__((__aligned__(4))) event_##name | ||
69 | 70 | ||
70 | #undef DEFINE_EVENT_PRINT | 71 | #undef DEFINE_EVENT_PRINT |
71 | #define DEFINE_EVENT_PRINT(template, name, proto, args, print) \ | 72 | #define DEFINE_EVENT_PRINT(template, name, proto, args, print) \ |
@@ -131,130 +132,6 @@ | |||
131 | #include TRACE_INCLUDE(TRACE_INCLUDE_FILE) | 132 | #include TRACE_INCLUDE(TRACE_INCLUDE_FILE) |
132 | 133 | ||
133 | /* | 134 | /* |
134 | * Setup the showing format of trace point. | ||
135 | * | ||
136 | * int | ||
137 | * ftrace_format_##call(struct trace_seq *s) | ||
138 | * { | ||
139 | * struct ftrace_raw_##call field; | ||
140 | * int ret; | ||
141 | * | ||
142 | * ret = trace_seq_printf(s, #type " " #item ";" | ||
143 | * " offset:%u; size:%u;\n", | ||
144 | * offsetof(struct ftrace_raw_##call, item), | ||
145 | * sizeof(field.type)); | ||
146 | * | ||
147 | * } | ||
148 | */ | ||
149 | |||
150 | #undef TP_STRUCT__entry | ||
151 | #define TP_STRUCT__entry(args...) args | ||
152 | |||
153 | #undef __field | ||
154 | #define __field(type, item) \ | ||
155 | ret = trace_seq_printf(s, "\tfield:" #type " " #item ";\t" \ | ||
156 | "offset:%u;\tsize:%u;\tsigned:%u;\n", \ | ||
157 | (unsigned int)offsetof(typeof(field), item), \ | ||
158 | (unsigned int)sizeof(field.item), \ | ||
159 | (unsigned int)is_signed_type(type)); \ | ||
160 | if (!ret) \ | ||
161 | return 0; | ||
162 | |||
163 | #undef __field_ext | ||
164 | #define __field_ext(type, item, filter_type) __field(type, item) | ||
165 | |||
166 | #undef __array | ||
167 | #define __array(type, item, len) \ | ||
168 | ret = trace_seq_printf(s, "\tfield:" #type " " #item "[" #len "];\t" \ | ||
169 | "offset:%u;\tsize:%u;\tsigned:%u;\n", \ | ||
170 | (unsigned int)offsetof(typeof(field), item), \ | ||
171 | (unsigned int)sizeof(field.item), \ | ||
172 | (unsigned int)is_signed_type(type)); \ | ||
173 | if (!ret) \ | ||
174 | return 0; | ||
175 | |||
176 | #undef __dynamic_array | ||
177 | #define __dynamic_array(type, item, len) \ | ||
178 | ret = trace_seq_printf(s, "\tfield:__data_loc " #type "[] " #item ";\t"\ | ||
179 | "offset:%u;\tsize:%u;\tsigned:%u;\n", \ | ||
180 | (unsigned int)offsetof(typeof(field), \ | ||
181 | __data_loc_##item), \ | ||
182 | (unsigned int)sizeof(field.__data_loc_##item), \ | ||
183 | (unsigned int)is_signed_type(type)); \ | ||
184 | if (!ret) \ | ||
185 | return 0; | ||
186 | |||
187 | #undef __string | ||
188 | #define __string(item, src) __dynamic_array(char, item, -1) | ||
189 | |||
190 | #undef __entry | ||
191 | #define __entry REC | ||
192 | |||
193 | #undef __print_symbolic | ||
194 | #undef __get_dynamic_array | ||
195 | #undef __get_str | ||
196 | |||
197 | #undef TP_printk | ||
198 | #define TP_printk(fmt, args...) "\"%s\", %s\n", fmt, __stringify(args) | ||
199 | |||
200 | #undef TP_fast_assign | ||
201 | #define TP_fast_assign(args...) args | ||
202 | |||
203 | #undef TP_perf_assign | ||
204 | #define TP_perf_assign(args...) | ||
205 | |||
206 | #undef DECLARE_EVENT_CLASS | ||
207 | #define DECLARE_EVENT_CLASS(call, proto, args, tstruct, func, print) \ | ||
208 | static int \ | ||
209 | ftrace_format_setup_##call(struct ftrace_event_call *unused, \ | ||
210 | struct trace_seq *s) \ | ||
211 | { \ | ||
212 | struct ftrace_raw_##call field __attribute__((unused)); \ | ||
213 | int ret = 0; \ | ||
214 | \ | ||
215 | tstruct; \ | ||
216 | \ | ||
217 | return ret; \ | ||
218 | } \ | ||
219 | \ | ||
220 | static int \ | ||
221 | ftrace_format_##call(struct ftrace_event_call *unused, \ | ||
222 | struct trace_seq *s) \ | ||
223 | { \ | ||
224 | int ret = 0; \ | ||
225 | \ | ||
226 | ret = ftrace_format_setup_##call(unused, s); \ | ||
227 | if (!ret) \ | ||
228 | return ret; \ | ||
229 | \ | ||
230 | ret = trace_seq_printf(s, "\nprint fmt: " print); \ | ||
231 | \ | ||
232 | return ret; \ | ||
233 | } | ||
234 | |||
235 | #undef DEFINE_EVENT | ||
236 | #define DEFINE_EVENT(template, name, proto, args) | ||
237 | |||
238 | #undef DEFINE_EVENT_PRINT | ||
239 | #define DEFINE_EVENT_PRINT(template, name, proto, args, print) \ | ||
240 | static int \ | ||
241 | ftrace_format_##name(struct ftrace_event_call *unused, \ | ||
242 | struct trace_seq *s) \ | ||
243 | { \ | ||
244 | int ret = 0; \ | ||
245 | \ | ||
246 | ret = ftrace_format_setup_##template(unused, s); \ | ||
247 | if (!ret) \ | ||
248 | return ret; \ | ||
249 | \ | ||
250 | trace_seq_printf(s, "\nprint fmt: " print); \ | ||
251 | \ | ||
252 | return ret; \ | ||
253 | } | ||
254 | |||
255 | #include TRACE_INCLUDE(TRACE_INCLUDE_FILE) | ||
256 | |||
257 | /* | ||
258 | * Stage 3 of the trace events. | 135 | * Stage 3 of the trace events. |
259 | * | 136 | * |
260 | * Override the macros in <trace/trace_events.h> to include the following: | 137 | * Override the macros in <trace/trace_events.h> to include the following: |
@@ -323,7 +200,7 @@ ftrace_format_##name(struct ftrace_event_call *unused, \ | |||
323 | 200 | ||
324 | #undef DECLARE_EVENT_CLASS | 201 | #undef DECLARE_EVENT_CLASS |
325 | #define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \ | 202 | #define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \ |
326 | static enum print_line_t \ | 203 | static notrace enum print_line_t \ |
327 | ftrace_raw_output_id_##call(int event_id, const char *name, \ | 204 | ftrace_raw_output_id_##call(int event_id, const char *name, \ |
328 | struct trace_iterator *iter, int flags) \ | 205 | struct trace_iterator *iter, int flags) \ |
329 | { \ | 206 | { \ |
@@ -356,7 +233,7 @@ ftrace_raw_output_id_##call(int event_id, const char *name, \ | |||
356 | 233 | ||
357 | #undef DEFINE_EVENT | 234 | #undef DEFINE_EVENT |
358 | #define DEFINE_EVENT(template, name, proto, args) \ | 235 | #define DEFINE_EVENT(template, name, proto, args) \ |
359 | static enum print_line_t \ | 236 | static notrace enum print_line_t \ |
360 | ftrace_raw_output_##name(struct trace_iterator *iter, int flags) \ | 237 | ftrace_raw_output_##name(struct trace_iterator *iter, int flags) \ |
361 | { \ | 238 | { \ |
362 | return ftrace_raw_output_id_##template(event_##name.id, \ | 239 | return ftrace_raw_output_id_##template(event_##name.id, \ |
@@ -365,7 +242,7 @@ ftrace_raw_output_##name(struct trace_iterator *iter, int flags) \ | |||
365 | 242 | ||
366 | #undef DEFINE_EVENT_PRINT | 243 | #undef DEFINE_EVENT_PRINT |
367 | #define DEFINE_EVENT_PRINT(template, call, proto, args, print) \ | 244 | #define DEFINE_EVENT_PRINT(template, call, proto, args, print) \ |
368 | static enum print_line_t \ | 245 | static notrace enum print_line_t \ |
369 | ftrace_raw_output_##call(struct trace_iterator *iter, int flags) \ | 246 | ftrace_raw_output_##call(struct trace_iterator *iter, int flags) \ |
370 | { \ | 247 | { \ |
371 | struct trace_seq *s = &iter->seq; \ | 248 | struct trace_seq *s = &iter->seq; \ |
@@ -431,7 +308,7 @@ ftrace_raw_output_##call(struct trace_iterator *iter, int flags) \ | |||
431 | 308 | ||
432 | #undef DECLARE_EVENT_CLASS | 309 | #undef DECLARE_EVENT_CLASS |
433 | #define DECLARE_EVENT_CLASS(call, proto, args, tstruct, func, print) \ | 310 | #define DECLARE_EVENT_CLASS(call, proto, args, tstruct, func, print) \ |
434 | static int \ | 311 | static int notrace \ |
435 | ftrace_define_fields_##call(struct ftrace_event_call *event_call) \ | 312 | ftrace_define_fields_##call(struct ftrace_event_call *event_call) \ |
436 | { \ | 313 | { \ |
437 | struct ftrace_raw_##call field; \ | 314 | struct ftrace_raw_##call field; \ |
@@ -479,7 +356,7 @@ ftrace_define_fields_##call(struct ftrace_event_call *event_call) \ | |||
479 | 356 | ||
480 | #undef DECLARE_EVENT_CLASS | 357 | #undef DECLARE_EVENT_CLASS |
481 | #define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \ | 358 | #define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \ |
482 | static inline int ftrace_get_offsets_##call( \ | 359 | static inline notrace int ftrace_get_offsets_##call( \ |
483 | struct ftrace_data_offsets_##call *__data_offsets, proto) \ | 360 | struct ftrace_data_offsets_##call *__data_offsets, proto) \ |
484 | { \ | 361 | { \ |
485 | int __data_size = 0; \ | 362 | int __data_size = 0; \ |
@@ -499,7 +376,7 @@ static inline int ftrace_get_offsets_##call( \ | |||
499 | 376 | ||
500 | #include TRACE_INCLUDE(TRACE_INCLUDE_FILE) | 377 | #include TRACE_INCLUDE(TRACE_INCLUDE_FILE) |
501 | 378 | ||
502 | #ifdef CONFIG_EVENT_PROFILE | 379 | #ifdef CONFIG_PERF_EVENTS |
503 | 380 | ||
504 | /* | 381 | /* |
505 | * Generate the functions needed for tracepoint perf_event support. | 382 | * Generate the functions needed for tracepoint perf_event support. |
@@ -524,16 +401,18 @@ static inline int ftrace_get_offsets_##call( \ | |||
524 | #undef DEFINE_EVENT | 401 | #undef DEFINE_EVENT |
525 | #define DEFINE_EVENT(template, name, proto, args) \ | 402 | #define DEFINE_EVENT(template, name, proto, args) \ |
526 | \ | 403 | \ |
527 | static void ftrace_profile_##name(proto); \ | 404 | static void perf_trace_##name(proto); \ |
528 | \ | 405 | \ |
529 | static int ftrace_profile_enable_##name(struct ftrace_event_call *unused)\ | 406 | static notrace int \ |
407 | perf_trace_enable_##name(struct ftrace_event_call *unused) \ | ||
530 | { \ | 408 | { \ |
531 | return register_trace_##name(ftrace_profile_##name); \ | 409 | return register_trace_##name(perf_trace_##name); \ |
532 | } \ | 410 | } \ |
533 | \ | 411 | \ |
534 | static void ftrace_profile_disable_##name(struct ftrace_event_call *unused)\ | 412 | static notrace void \ |
413 | perf_trace_disable_##name(struct ftrace_event_call *unused) \ | ||
535 | { \ | 414 | { \ |
536 | unregister_trace_##name(ftrace_profile_##name); \ | 415 | unregister_trace_##name(perf_trace_##name); \ |
537 | } | 416 | } |
538 | 417 | ||
539 | #undef DEFINE_EVENT_PRINT | 418 | #undef DEFINE_EVENT_PRINT |
@@ -542,7 +421,7 @@ static void ftrace_profile_disable_##name(struct ftrace_event_call *unused)\ | |||
542 | 421 | ||
543 | #include TRACE_INCLUDE(TRACE_INCLUDE_FILE) | 422 | #include TRACE_INCLUDE(TRACE_INCLUDE_FILE) |
544 | 423 | ||
545 | #endif | 424 | #endif /* CONFIG_PERF_EVENTS */ |
546 | 425 | ||
547 | /* | 426 | /* |
548 | * Stage 4 of the trace events. | 427 | * Stage 4 of the trace events. |
@@ -622,20 +501,19 @@ static void ftrace_profile_disable_##name(struct ftrace_event_call *unused)\ | |||
622 | * .raw_init = trace_event_raw_init, | 501 | * .raw_init = trace_event_raw_init, |
623 | * .regfunc = ftrace_reg_event_<call>, | 502 | * .regfunc = ftrace_reg_event_<call>, |
624 | * .unregfunc = ftrace_unreg_event_<call>, | 503 | * .unregfunc = ftrace_unreg_event_<call>, |
625 | * .show_format = ftrace_format_<call>, | ||
626 | * } | 504 | * } |
627 | * | 505 | * |
628 | */ | 506 | */ |
629 | 507 | ||
630 | #ifdef CONFIG_EVENT_PROFILE | 508 | #ifdef CONFIG_PERF_EVENTS |
631 | 509 | ||
632 | #define _TRACE_PROFILE_INIT(call) \ | 510 | #define _TRACE_PERF_INIT(call) \ |
633 | .profile_enable = ftrace_profile_enable_##call, \ | 511 | .perf_event_enable = perf_trace_enable_##call, \ |
634 | .profile_disable = ftrace_profile_disable_##call, | 512 | .perf_event_disable = perf_trace_disable_##call, |
635 | 513 | ||
636 | #else | 514 | #else |
637 | #define _TRACE_PROFILE_INIT(call) | 515 | #define _TRACE_PERF_INIT(call) |
638 | #endif | 516 | #endif /* CONFIG_PERF_EVENTS */ |
639 | 517 | ||
640 | #undef __entry | 518 | #undef __entry |
641 | #define __entry entry | 519 | #define __entry entry |
@@ -657,10 +535,17 @@ static void ftrace_profile_disable_##name(struct ftrace_event_call *unused)\ | |||
657 | #define __assign_str(dst, src) \ | 535 | #define __assign_str(dst, src) \ |
658 | strcpy(__get_str(dst), src); | 536 | strcpy(__get_str(dst), src); |
659 | 537 | ||
538 | #undef TP_fast_assign | ||
539 | #define TP_fast_assign(args...) args | ||
540 | |||
541 | #undef TP_perf_assign | ||
542 | #define TP_perf_assign(args...) | ||
543 | |||
660 | #undef DECLARE_EVENT_CLASS | 544 | #undef DECLARE_EVENT_CLASS |
661 | #define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \ | 545 | #define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \ |
662 | \ | 546 | \ |
663 | static void ftrace_raw_event_id_##call(struct ftrace_event_call *event_call, \ | 547 | static notrace void \ |
548 | ftrace_raw_event_id_##call(struct ftrace_event_call *event_call, \ | ||
664 | proto) \ | 549 | proto) \ |
665 | { \ | 550 | { \ |
666 | struct ftrace_data_offsets_##call __maybe_unused __data_offsets;\ | 551 | struct ftrace_data_offsets_##call __maybe_unused __data_offsets;\ |
@@ -697,17 +582,19 @@ static void ftrace_raw_event_id_##call(struct ftrace_event_call *event_call, \ | |||
697 | #undef DEFINE_EVENT | 582 | #undef DEFINE_EVENT |
698 | #define DEFINE_EVENT(template, call, proto, args) \ | 583 | #define DEFINE_EVENT(template, call, proto, args) \ |
699 | \ | 584 | \ |
700 | static void ftrace_raw_event_##call(proto) \ | 585 | static notrace void ftrace_raw_event_##call(proto) \ |
701 | { \ | 586 | { \ |
702 | ftrace_raw_event_id_##template(&event_##call, args); \ | 587 | ftrace_raw_event_id_##template(&event_##call, args); \ |
703 | } \ | 588 | } \ |
704 | \ | 589 | \ |
705 | static int ftrace_raw_reg_event_##call(struct ftrace_event_call *unused)\ | 590 | static notrace int \ |
591 | ftrace_raw_reg_event_##call(struct ftrace_event_call *unused) \ | ||
706 | { \ | 592 | { \ |
707 | return register_trace_##call(ftrace_raw_event_##call); \ | 593 | return register_trace_##call(ftrace_raw_event_##call); \ |
708 | } \ | 594 | } \ |
709 | \ | 595 | \ |
710 | static void ftrace_raw_unreg_event_##call(struct ftrace_event_call *unused)\ | 596 | static notrace void \ |
597 | ftrace_raw_unreg_event_##call(struct ftrace_event_call *unused) \ | ||
711 | { \ | 598 | { \ |
712 | unregister_trace_##call(ftrace_raw_event_##call); \ | 599 | unregister_trace_##call(ftrace_raw_event_##call); \ |
713 | } \ | 600 | } \ |
@@ -722,8 +609,20 @@ static struct trace_event ftrace_event_type_##call = { \ | |||
722 | 609 | ||
723 | #include TRACE_INCLUDE(TRACE_INCLUDE_FILE) | 610 | #include TRACE_INCLUDE(TRACE_INCLUDE_FILE) |
724 | 611 | ||
612 | #undef __entry | ||
613 | #define __entry REC | ||
614 | |||
615 | #undef __print_flags | ||
616 | #undef __print_symbolic | ||
617 | #undef __get_dynamic_array | ||
618 | #undef __get_str | ||
619 | |||
620 | #undef TP_printk | ||
621 | #define TP_printk(fmt, args...) "\"" fmt "\", " __stringify(args) | ||
622 | |||
725 | #undef DECLARE_EVENT_CLASS | 623 | #undef DECLARE_EVENT_CLASS |
726 | #define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) | 624 | #define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \ |
625 | static const char print_fmt_##call[] = print; | ||
727 | 626 | ||
728 | #undef DEFINE_EVENT | 627 | #undef DEFINE_EVENT |
729 | #define DEFINE_EVENT(template, call, proto, args) \ | 628 | #define DEFINE_EVENT(template, call, proto, args) \ |
@@ -737,14 +636,16 @@ __attribute__((section("_ftrace_events"))) event_##call = { \ | |||
737 | .raw_init = trace_event_raw_init, \ | 636 | .raw_init = trace_event_raw_init, \ |
738 | .regfunc = ftrace_raw_reg_event_##call, \ | 637 | .regfunc = ftrace_raw_reg_event_##call, \ |
739 | .unregfunc = ftrace_raw_unreg_event_##call, \ | 638 | .unregfunc = ftrace_raw_unreg_event_##call, \ |
740 | .show_format = ftrace_format_##template, \ | 639 | .print_fmt = print_fmt_##template, \ |
741 | .define_fields = ftrace_define_fields_##template, \ | 640 | .define_fields = ftrace_define_fields_##template, \ |
742 | _TRACE_PROFILE_INIT(call) \ | 641 | _TRACE_PERF_INIT(call) \ |
743 | } | 642 | } |
744 | 643 | ||
745 | #undef DEFINE_EVENT_PRINT | 644 | #undef DEFINE_EVENT_PRINT |
746 | #define DEFINE_EVENT_PRINT(template, call, proto, args, print) \ | 645 | #define DEFINE_EVENT_PRINT(template, call, proto, args, print) \ |
747 | \ | 646 | \ |
647 | static const char print_fmt_##call[] = print; \ | ||
648 | \ | ||
748 | static struct ftrace_event_call __used \ | 649 | static struct ftrace_event_call __used \ |
749 | __attribute__((__aligned__(4))) \ | 650 | __attribute__((__aligned__(4))) \ |
750 | __attribute__((section("_ftrace_events"))) event_##call = { \ | 651 | __attribute__((section("_ftrace_events"))) event_##call = { \ |
@@ -754,20 +655,20 @@ __attribute__((section("_ftrace_events"))) event_##call = { \ | |||
754 | .raw_init = trace_event_raw_init, \ | 655 | .raw_init = trace_event_raw_init, \ |
755 | .regfunc = ftrace_raw_reg_event_##call, \ | 656 | .regfunc = ftrace_raw_reg_event_##call, \ |
756 | .unregfunc = ftrace_raw_unreg_event_##call, \ | 657 | .unregfunc = ftrace_raw_unreg_event_##call, \ |
757 | .show_format = ftrace_format_##call, \ | 658 | .print_fmt = print_fmt_##call, \ |
758 | .define_fields = ftrace_define_fields_##template, \ | 659 | .define_fields = ftrace_define_fields_##template, \ |
759 | _TRACE_PROFILE_INIT(call) \ | 660 | _TRACE_PERF_INIT(call) \ |
760 | } | 661 | } |
761 | 662 | ||
762 | #include TRACE_INCLUDE(TRACE_INCLUDE_FILE) | 663 | #include TRACE_INCLUDE(TRACE_INCLUDE_FILE) |
763 | 664 | ||
764 | /* | 665 | /* |
765 | * Define the insertion callback to profile events | 666 | * Define the insertion callback to perf events |
766 | * | 667 | * |
767 | * The job is very similar to ftrace_raw_event_<call> except that we don't | 668 | * The job is very similar to ftrace_raw_event_<call> except that we don't |
768 | * insert in the ring buffer but in a perf counter. | 669 | * insert in the ring buffer but in a perf counter. |
769 | * | 670 | * |
770 | * static void ftrace_profile_<call>(proto) | 671 | * static void ftrace_perf_<call>(proto) |
771 | * { | 672 | * { |
772 | * struct ftrace_data_offsets_<call> __maybe_unused __data_offsets; | 673 | * struct ftrace_data_offsets_<call> __maybe_unused __data_offsets; |
773 | * struct ftrace_event_call *event_call = &event_<call>; | 674 | * struct ftrace_event_call *event_call = &event_<call>; |
@@ -798,9 +699,9 @@ __attribute__((section("_ftrace_events"))) event_##call = { \ | |||
798 | * __cpu = smp_processor_id(); | 699 | * __cpu = smp_processor_id(); |
799 | * | 700 | * |
800 | * if (in_nmi()) | 701 | * if (in_nmi()) |
801 | * trace_buf = rcu_dereference(perf_trace_buf_nmi); | 702 | * trace_buf = rcu_dereference_sched(perf_trace_buf_nmi); |
802 | * else | 703 | * else |
803 | * trace_buf = rcu_dereference(perf_trace_buf); | 704 | * trace_buf = rcu_dereference_sched(perf_trace_buf); |
804 | * | 705 | * |
805 | * if (!trace_buf) | 706 | * if (!trace_buf) |
806 | * goto end; | 707 | * goto end; |
@@ -835,7 +736,17 @@ __attribute__((section("_ftrace_events"))) event_##call = { \ | |||
835 | * } | 736 | * } |
836 | */ | 737 | */ |
837 | 738 | ||
838 | #ifdef CONFIG_EVENT_PROFILE | 739 | #ifdef CONFIG_PERF_EVENTS |
740 | |||
741 | #undef __entry | ||
742 | #define __entry entry | ||
743 | |||
744 | #undef __get_dynamic_array | ||
745 | #define __get_dynamic_array(field) \ | ||
746 | ((void *)__entry + (__entry->__data_loc_##field & 0xffff)) | ||
747 | |||
748 | #undef __get_str | ||
749 | #define __get_str(field) (char *)__get_dynamic_array(field) | ||
839 | 750 | ||
840 | #undef __perf_addr | 751 | #undef __perf_addr |
841 | #define __perf_addr(a) __addr = (a) | 752 | #define __perf_addr(a) __addr = (a) |
@@ -845,81 +756,49 @@ __attribute__((section("_ftrace_events"))) event_##call = { \ | |||
845 | 756 | ||
846 | #undef DECLARE_EVENT_CLASS | 757 | #undef DECLARE_EVENT_CLASS |
847 | #define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \ | 758 | #define DECLARE_EVENT_CLASS(call, proto, args, tstruct, assign, print) \ |
848 | static void \ | 759 | static notrace void \ |
849 | ftrace_profile_templ_##call(struct ftrace_event_call *event_call, \ | 760 | perf_trace_templ_##call(struct ftrace_event_call *event_call, \ |
850 | proto) \ | 761 | proto) \ |
851 | { \ | 762 | { \ |
852 | struct ftrace_data_offsets_##call __maybe_unused __data_offsets;\ | 763 | struct ftrace_data_offsets_##call __maybe_unused __data_offsets;\ |
853 | extern int perf_swevent_get_recursion_context(void); \ | ||
854 | extern void perf_swevent_put_recursion_context(int rctx); \ | ||
855 | extern void perf_tp_event(int, u64, u64, void *, int); \ | ||
856 | struct ftrace_raw_##call *entry; \ | 764 | struct ftrace_raw_##call *entry; \ |
857 | u64 __addr = 0, __count = 1; \ | 765 | u64 __addr = 0, __count = 1; \ |
858 | unsigned long irq_flags; \ | 766 | unsigned long irq_flags; \ |
859 | struct trace_entry *ent; \ | 767 | struct pt_regs *__regs; \ |
860 | int __entry_size; \ | 768 | int __entry_size; \ |
861 | int __data_size; \ | 769 | int __data_size; \ |
862 | char *trace_buf; \ | ||
863 | char *raw_data; \ | ||
864 | int __cpu; \ | ||
865 | int rctx; \ | 770 | int rctx; \ |
866 | int pc; \ | ||
867 | \ | ||
868 | pc = preempt_count(); \ | ||
869 | \ | 771 | \ |
870 | __data_size = ftrace_get_offsets_##call(&__data_offsets, args); \ | 772 | __data_size = ftrace_get_offsets_##call(&__data_offsets, args); \ |
871 | __entry_size = ALIGN(__data_size + sizeof(*entry) + sizeof(u32),\ | 773 | __entry_size = ALIGN(__data_size + sizeof(*entry) + sizeof(u32),\ |
872 | sizeof(u64)); \ | 774 | sizeof(u64)); \ |
873 | __entry_size -= sizeof(u32); \ | 775 | __entry_size -= sizeof(u32); \ |
874 | \ | 776 | \ |
875 | if (WARN_ONCE(__entry_size > FTRACE_MAX_PROFILE_SIZE, \ | 777 | if (WARN_ONCE(__entry_size > PERF_MAX_TRACE_SIZE, \ |
876 | "profile buffer not large enough")) \ | 778 | "profile buffer not large enough")) \ |
877 | return; \ | 779 | return; \ |
878 | \ | 780 | entry = (struct ftrace_raw_##call *)perf_trace_buf_prepare( \ |
879 | local_irq_save(irq_flags); \ | 781 | __entry_size, event_call->id, &rctx, &irq_flags); \ |
880 | \ | 782 | if (!entry) \ |
881 | rctx = perf_swevent_get_recursion_context(); \ | 783 | return; \ |
882 | if (rctx < 0) \ | ||
883 | goto end_recursion; \ | ||
884 | \ | ||
885 | __cpu = smp_processor_id(); \ | ||
886 | \ | ||
887 | if (in_nmi()) \ | ||
888 | trace_buf = rcu_dereference(perf_trace_buf_nmi); \ | ||
889 | else \ | ||
890 | trace_buf = rcu_dereference(perf_trace_buf); \ | ||
891 | \ | ||
892 | if (!trace_buf) \ | ||
893 | goto end; \ | ||
894 | \ | ||
895 | raw_data = per_cpu_ptr(trace_buf, __cpu); \ | ||
896 | \ | ||
897 | *(u64 *)(&raw_data[__entry_size - sizeof(u64)]) = 0ULL; \ | ||
898 | entry = (struct ftrace_raw_##call *)raw_data; \ | ||
899 | ent = &entry->ent; \ | ||
900 | tracing_generic_entry_update(ent, irq_flags, pc); \ | ||
901 | ent->type = event_call->id; \ | ||
902 | \ | ||
903 | tstruct \ | 784 | tstruct \ |
904 | \ | 785 | \ |
905 | { assign; } \ | 786 | { assign; } \ |
906 | \ | 787 | \ |
907 | perf_tp_event(event_call->id, __addr, __count, entry, \ | 788 | __regs = &__get_cpu_var(perf_trace_regs); \ |
908 | __entry_size); \ | 789 | perf_fetch_caller_regs(__regs, 2); \ |
909 | \ | 790 | \ |
910 | end: \ | 791 | perf_trace_buf_submit(entry, __entry_size, rctx, __addr, \ |
911 | perf_swevent_put_recursion_context(rctx); \ | 792 | __count, irq_flags, __regs); \ |
912 | end_recursion: \ | ||
913 | local_irq_restore(irq_flags); \ | ||
914 | } | 793 | } |
915 | 794 | ||
916 | #undef DEFINE_EVENT | 795 | #undef DEFINE_EVENT |
917 | #define DEFINE_EVENT(template, call, proto, args) \ | 796 | #define DEFINE_EVENT(template, call, proto, args) \ |
918 | static void ftrace_profile_##call(proto) \ | 797 | static notrace void perf_trace_##call(proto) \ |
919 | { \ | 798 | { \ |
920 | struct ftrace_event_call *event_call = &event_##call; \ | 799 | struct ftrace_event_call *event_call = &event_##call; \ |
921 | \ | 800 | \ |
922 | ftrace_profile_templ_##template(event_call, args); \ | 801 | perf_trace_templ_##template(event_call, args); \ |
923 | } | 802 | } |
924 | 803 | ||
925 | #undef DEFINE_EVENT_PRINT | 804 | #undef DEFINE_EVENT_PRINT |
@@ -927,7 +806,7 @@ static void ftrace_profile_##call(proto) \ | |||
927 | DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args)) | 806 | DEFINE_EVENT(template, name, PARAMS(proto), PARAMS(args)) |
928 | 807 | ||
929 | #include TRACE_INCLUDE(TRACE_INCLUDE_FILE) | 808 | #include TRACE_INCLUDE(TRACE_INCLUDE_FILE) |
930 | #endif /* CONFIG_EVENT_PROFILE */ | 809 | #endif /* CONFIG_PERF_EVENTS */ |
931 | 810 | ||
932 | #undef _TRACE_PROFILE_INIT | 811 | #undef _TRACE_PROFILE_INIT |
933 | 812 | ||