1 #ifndef _LINUX_KERNEL_TRACE_H
2 #define _LINUX_KERNEL_TRACE_H
5 #include <asm/atomic.h>
6 #include <linux/sched.h>
7 #include <linux/clocksource.h>
8 #include <linux/ring_buffer.h>
9 #include <linux/mmiotrace.h>
10 #include <linux/ftrace.h>
11 #include <trace/boot.h>
12 #include <linux/kmemtrace.h>
13 #include <trace/power.h>
15 #include <linux/trace_seq.h>
16 #include <linux/ftrace_event.h>
19 __TRACE_FIRST_TYPE = 0,
46 * Function trace entry - function address and parent function addres:
49 struct trace_entry ent;
51 unsigned long parent_ip;
54 /* Function call entry */
55 struct ftrace_graph_ent_entry {
56 struct trace_entry ent;
57 struct ftrace_graph_ent graph_ent;
60 /* Function return entry */
61 struct ftrace_graph_ret_entry {
62 struct trace_entry ent;
63 struct ftrace_graph_ret ret;
65 extern struct tracer boot_tracer;
68 * Context switch trace entry - which task (and prio) we switched from/to:
70 struct ctx_switch_entry {
71 struct trace_entry ent;
72 unsigned int prev_pid;
73 unsigned char prev_prio;
74 unsigned char prev_state;
75 unsigned int next_pid;
76 unsigned char next_prio;
77 unsigned char next_state;
78 unsigned int next_cpu;
82 * Special (free-form) trace entry:
84 struct special_entry {
85 struct trace_entry ent;
95 #define FTRACE_STACK_ENTRIES 8
98 struct trace_entry ent;
99 unsigned long caller[FTRACE_STACK_ENTRIES];
102 struct userstack_entry {
103 struct trace_entry ent;
104 unsigned long caller[FTRACE_STACK_ENTRIES];
108 * trace_printk entry:
110 struct bprint_entry {
111 struct trace_entry ent;
118 struct trace_entry ent;
123 #define TRACE_OLD_SIZE 88
125 struct trace_field_cont {
127 /* Temporary till we get rid of this completely */
128 char buf[TRACE_OLD_SIZE - 1];
131 struct trace_mmiotrace_rw {
132 struct trace_entry ent;
133 struct mmiotrace_rw rw;
136 struct trace_mmiotrace_map {
137 struct trace_entry ent;
138 struct mmiotrace_map map;
141 struct trace_boot_call {
142 struct trace_entry ent;
143 struct boot_trace_call boot_call;
146 struct trace_boot_ret {
147 struct trace_entry ent;
148 struct boot_trace_ret boot_ret;
151 #define TRACE_FUNC_SIZE 30
152 #define TRACE_FILE_SIZE 20
153 struct trace_branch {
154 struct trace_entry ent;
156 char func[TRACE_FUNC_SIZE+1];
157 char file[TRACE_FILE_SIZE+1];
161 struct hw_branch_entry {
162 struct trace_entry ent;
168 struct trace_entry ent;
169 struct power_trace state_data;
172 enum kmemtrace_type_id {
173 KMEMTRACE_TYPE_KMALLOC = 0, /* kmalloc() or kfree(). */
174 KMEMTRACE_TYPE_CACHE, /* kmem_cache_*(). */
175 KMEMTRACE_TYPE_PAGES, /* __get_free_pages() and friends. */
178 struct kmemtrace_alloc_entry {
179 struct trace_entry ent;
180 enum kmemtrace_type_id type_id;
181 unsigned long call_site;
189 struct kmemtrace_free_entry {
190 struct trace_entry ent;
191 enum kmemtrace_type_id type_id;
192 unsigned long call_site;
196 struct syscall_trace_enter {
197 struct trace_entry ent;
199 unsigned long args[];
202 struct syscall_trace_exit {
203 struct trace_entry ent;
210 * trace_flag_type is an enumeration that holds different
211 * states when a trace occurs. These are:
212 * IRQS_OFF - interrupts were disabled
213 * IRQS_NOSUPPORT - arch does not support irqs_disabled_flags
214 * NEED_RESCED - reschedule is requested
215 * HARDIRQ - inside an interrupt handler
216 * SOFTIRQ - inside a softirq handler
218 enum trace_flag_type {
219 TRACE_FLAG_IRQS_OFF = 0x01,
220 TRACE_FLAG_IRQS_NOSUPPORT = 0x02,
221 TRACE_FLAG_NEED_RESCHED = 0x04,
222 TRACE_FLAG_HARDIRQ = 0x08,
223 TRACE_FLAG_SOFTIRQ = 0x10,
226 #define TRACE_BUF_SIZE 1024
229 * The CPU trace array - it consists of thousands of trace entries
230 * plus some other descriptor data: (for example which task started
233 struct trace_array_cpu {
235 void *buffer_page; /* ring buffer spare */
237 unsigned long saved_latency;
238 unsigned long critical_start;
239 unsigned long critical_end;
240 unsigned long critical_sequence;
242 unsigned long policy;
243 unsigned long rt_priority;
244 unsigned long skipped_entries;
245 cycle_t preempt_timestamp;
248 char comm[TASK_COMM_LEN];
252 * The trace array - an array of per-CPU trace arrays. This is the
253 * highest level data structure that individual tracers deal with.
254 * They have on/off state as well:
257 struct ring_buffer *buffer;
258 unsigned long entries;
261 struct task_struct *waiter;
262 struct trace_array_cpu *data[NR_CPUS];
265 #define FTRACE_CMP_TYPE(var, type) \
266 __builtin_types_compatible_p(typeof(var), type *)
269 #define IF_ASSIGN(var, entry, etype, id) \
270 if (FTRACE_CMP_TYPE(var, etype)) { \
271 var = (typeof(var))(entry); \
272 WARN_ON(id && (entry)->type != id); \
276 /* Will cause compile errors if type is not found. */
277 extern void __ftrace_bad_type(void);
280 * The trace_assign_type is a verifier that the entry type is
281 * the same as the type being assigned. To add new types simply
282 * add a line with the following format:
284 * IF_ASSIGN(var, ent, type, id);
286 * Where "type" is the trace type that includes the trace_entry
287 * as the "ent" item. And "id" is the trace identifier that is
288 * used in the trace_type enum.
290 * If the type can have more than one id, then use zero.
292 #define trace_assign_type(var, ent) \
294 IF_ASSIGN(var, ent, struct ftrace_entry, TRACE_FN); \
295 IF_ASSIGN(var, ent, struct ctx_switch_entry, 0); \
296 IF_ASSIGN(var, ent, struct stack_entry, TRACE_STACK); \
297 IF_ASSIGN(var, ent, struct userstack_entry, TRACE_USER_STACK);\
298 IF_ASSIGN(var, ent, struct print_entry, TRACE_PRINT); \
299 IF_ASSIGN(var, ent, struct bprint_entry, TRACE_BPRINT); \
300 IF_ASSIGN(var, ent, struct special_entry, 0); \
301 IF_ASSIGN(var, ent, struct trace_mmiotrace_rw, \
303 IF_ASSIGN(var, ent, struct trace_mmiotrace_map, \
305 IF_ASSIGN(var, ent, struct trace_boot_call, TRACE_BOOT_CALL);\
306 IF_ASSIGN(var, ent, struct trace_boot_ret, TRACE_BOOT_RET);\
307 IF_ASSIGN(var, ent, struct trace_branch, TRACE_BRANCH); \
308 IF_ASSIGN(var, ent, struct ftrace_graph_ent_entry, \
310 IF_ASSIGN(var, ent, struct ftrace_graph_ret_entry, \
312 IF_ASSIGN(var, ent, struct hw_branch_entry, TRACE_HW_BRANCHES);\
313 IF_ASSIGN(var, ent, struct trace_power, TRACE_POWER); \
314 IF_ASSIGN(var, ent, struct kmemtrace_alloc_entry, \
316 IF_ASSIGN(var, ent, struct kmemtrace_free_entry, \
318 __ftrace_bad_type(); \
322 * An option specific to a tracer. This is a boolean value.
323 * The bit is the bit index that sets its value on the
324 * flags value in struct tracer_flags.
327 const char *name; /* Will appear on the trace_options file */
328 u32 bit; /* Mask assigned in val field in tracer_flags */
332 * The set of specific options for a tracer. Your tracer
333 * have to set the initial value of the flags val.
335 struct tracer_flags {
337 struct tracer_opt *opts;
340 /* Makes more easy to define a tracer opt */
341 #define TRACER_OPT(s, b) .name = #s, .bit = b
345 * struct tracer - a specific tracer and its callbacks to interact with debugfs
346 * @name: the name chosen to select it on the available_tracers file
347 * @init: called when one switches to this tracer (echo name > current_tracer)
348 * @reset: called when one switches to another tracer
349 * @start: called when tracing is unpaused (echo 1 > tracing_enabled)
350 * @stop: called when tracing is paused (echo 0 > tracing_enabled)
351 * @open: called when the trace file is opened
352 * @pipe_open: called when the trace_pipe file is opened
353 * @wait_pipe: override how the user waits for traces on trace_pipe
354 * @close: called when the trace file is released
355 * @read: override the default read callback on trace_pipe
356 * @splice_read: override the default splice_read callback on trace_pipe
357 * @selftest: selftest to run on boot (see trace_selftest.c)
358 * @print_headers: override the first lines that describe your columns
359 * @print_line: callback that prints a trace
360 * @set_flag: signals one of your private flags changed (trace_options file)
361 * @flags: your private flags
365 int (*init)(struct trace_array *tr);
366 void (*reset)(struct trace_array *tr);
367 void (*start)(struct trace_array *tr);
368 void (*stop)(struct trace_array *tr);
369 void (*open)(struct trace_iterator *iter);
370 void (*pipe_open)(struct trace_iterator *iter);
371 void (*wait_pipe)(struct trace_iterator *iter);
372 void (*close)(struct trace_iterator *iter);
373 ssize_t (*read)(struct trace_iterator *iter,
374 struct file *filp, char __user *ubuf,
375 size_t cnt, loff_t *ppos);
376 ssize_t (*splice_read)(struct trace_iterator *iter,
379 struct pipe_inode_info *pipe,
382 #ifdef CONFIG_FTRACE_STARTUP_TEST
383 int (*selftest)(struct tracer *trace,
384 struct trace_array *tr);
386 void (*print_header)(struct seq_file *m);
387 enum print_line_t (*print_line)(struct trace_iterator *iter);
388 /* If you handled the flag setting, return 0 */
389 int (*set_flag)(u32 old_flags, u32 bit, int set);
392 struct tracer_flags *flags;
393 struct tracer_stat *stats;
397 #define TRACE_PIPE_ALL_CPU -1
399 int tracer_init(struct tracer *t, struct trace_array *tr);
400 int tracing_is_enabled(void);
401 void trace_wake_up(void);
402 void tracing_reset(struct trace_array *tr, int cpu);
403 void tracing_reset_online_cpus(struct trace_array *tr);
404 void tracing_reset_current(int cpu);
405 void tracing_reset_current_online_cpus(void);
406 int tracing_open_generic(struct inode *inode, struct file *filp);
407 struct dentry *trace_create_file(const char *name,
409 struct dentry *parent,
411 const struct file_operations *fops);
413 struct dentry *tracing_init_dentry(void);
414 void init_tracer_sysprof_debugfs(struct dentry *d_tracer);
416 struct ring_buffer_event;
418 struct ring_buffer_event *
419 trace_buffer_lock_reserve(struct ring_buffer *buffer,
424 void trace_buffer_unlock_commit(struct ring_buffer *buffer,
425 struct ring_buffer_event *event,
426 unsigned long flags, int pc);
428 struct trace_entry *tracing_get_trace_entry(struct trace_array *tr,
429 struct trace_array_cpu *data);
431 struct trace_entry *trace_find_next_entry(struct trace_iterator *iter,
432 int *ent_cpu, u64 *ent_ts);
434 void default_wait_pipe(struct trace_iterator *iter);
435 void poll_wait_pipe(struct trace_iterator *iter);
437 void ftrace(struct trace_array *tr,
438 struct trace_array_cpu *data,
440 unsigned long parent_ip,
441 unsigned long flags, int pc);
442 void tracing_sched_switch_trace(struct trace_array *tr,
443 struct task_struct *prev,
444 struct task_struct *next,
445 unsigned long flags, int pc);
447 void tracing_sched_wakeup_trace(struct trace_array *tr,
448 struct task_struct *wakee,
449 struct task_struct *cur,
450 unsigned long flags, int pc);
451 void trace_special(struct trace_array *tr,
452 struct trace_array_cpu *data,
455 unsigned long arg3, int pc);
456 void trace_function(struct trace_array *tr,
458 unsigned long parent_ip,
459 unsigned long flags, int pc);
461 void trace_graph_return(struct ftrace_graph_ret *trace);
462 int trace_graph_entry(struct ftrace_graph_ent *trace);
463 void set_graph_array(struct trace_array *tr);
465 void tracing_start_cmdline_record(void);
466 void tracing_stop_cmdline_record(void);
467 void tracing_sched_switch_assign_trace(struct trace_array *tr);
468 void tracing_stop_sched_switch_record(void);
469 void tracing_start_sched_switch_record(void);
470 int register_tracer(struct tracer *type);
471 void unregister_tracer(struct tracer *type);
473 extern unsigned long nsecs_to_usecs(unsigned long nsecs);
475 #ifdef CONFIG_TRACER_MAX_TRACE
476 extern unsigned long tracing_max_latency;
477 extern unsigned long tracing_thresh;
479 void update_max_tr(struct trace_array *tr, struct task_struct *tsk, int cpu);
480 void update_max_tr_single(struct trace_array *tr,
481 struct task_struct *tsk, int cpu);
482 #endif /* CONFIG_TRACER_MAX_TRACE */
484 #ifdef CONFIG_STACKTRACE
485 void ftrace_trace_stack(struct ring_buffer *buffer, unsigned long flags,
488 void ftrace_trace_userstack(struct ring_buffer *buffer, unsigned long flags,
491 void __trace_stack(struct trace_array *tr, unsigned long flags, int skip,
494 static inline void ftrace_trace_stack(struct trace_array *tr,
495 unsigned long flags, int skip, int pc)
499 static inline void ftrace_trace_userstack(struct trace_array *tr,
500 unsigned long flags, int pc)
504 static inline void __trace_stack(struct trace_array *tr, unsigned long flags,
508 #endif /* CONFIG_STACKTRACE */
510 extern cycle_t ftrace_now(int cpu);
512 #ifdef CONFIG_CONTEXT_SWITCH_TRACER
514 (*tracer_switch_func_t)(void *private,
516 struct task_struct *prev,
517 struct task_struct *next);
519 struct tracer_switch_ops {
520 tracer_switch_func_t func;
522 struct tracer_switch_ops *next;
524 #endif /* CONFIG_CONTEXT_SWITCH_TRACER */
526 extern void trace_find_cmdline(int pid, char comm[]);
528 #ifdef CONFIG_DYNAMIC_FTRACE
529 extern unsigned long ftrace_update_tot_cnt;
530 #define DYN_FTRACE_TEST_NAME trace_selftest_dynamic_test_func
531 extern int DYN_FTRACE_TEST_NAME(void);
534 extern int ring_buffer_expanded;
535 extern bool tracing_selftest_disabled;
536 DECLARE_PER_CPU(local_t, ftrace_cpu_disabled);
538 #ifdef CONFIG_FTRACE_STARTUP_TEST
539 extern int trace_selftest_startup_function(struct tracer *trace,
540 struct trace_array *tr);
541 extern int trace_selftest_startup_function_graph(struct tracer *trace,
542 struct trace_array *tr);
543 extern int trace_selftest_startup_irqsoff(struct tracer *trace,
544 struct trace_array *tr);
545 extern int trace_selftest_startup_preemptoff(struct tracer *trace,
546 struct trace_array *tr);
547 extern int trace_selftest_startup_preemptirqsoff(struct tracer *trace,
548 struct trace_array *tr);
549 extern int trace_selftest_startup_wakeup(struct tracer *trace,
550 struct trace_array *tr);
551 extern int trace_selftest_startup_nop(struct tracer *trace,
552 struct trace_array *tr);
553 extern int trace_selftest_startup_sched_switch(struct tracer *trace,
554 struct trace_array *tr);
555 extern int trace_selftest_startup_sysprof(struct tracer *trace,
556 struct trace_array *tr);
557 extern int trace_selftest_startup_branch(struct tracer *trace,
558 struct trace_array *tr);
559 extern int trace_selftest_startup_hw_branches(struct tracer *trace,
560 struct trace_array *tr);
561 #endif /* CONFIG_FTRACE_STARTUP_TEST */
563 extern void *head_page(struct trace_array_cpu *data);
564 extern unsigned long long ns2usecs(cycle_t nsec);
566 trace_vbprintk(unsigned long ip, const char *fmt, va_list args);
568 trace_vprintk(unsigned long ip, const char *fmt, va_list args);
570 extern unsigned long trace_flags;
572 extern int trace_clock_id;
574 /* Standard output formatting function used for function return traces */
575 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
576 extern enum print_line_t print_graph_function(struct trace_iterator *iter);
577 extern enum print_line_t
578 trace_print_graph_duration(unsigned long long duration, struct trace_seq *s);
580 #ifdef CONFIG_DYNAMIC_FTRACE
581 /* TODO: make this variable */
582 #define FTRACE_GRAPH_MAX_FUNCS 32
583 extern int ftrace_graph_count;
584 extern unsigned long ftrace_graph_funcs[FTRACE_GRAPH_MAX_FUNCS];
586 static inline int ftrace_graph_addr(unsigned long addr)
590 if (!ftrace_graph_count || test_tsk_trace_graph(current))
593 for (i = 0; i < ftrace_graph_count; i++) {
594 if (addr == ftrace_graph_funcs[i])
601 static inline int ftrace_trace_addr(unsigned long addr)
605 static inline int ftrace_graph_addr(unsigned long addr)
609 #endif /* CONFIG_DYNAMIC_FTRACE */
610 #else /* CONFIG_FUNCTION_GRAPH_TRACER */
611 static inline enum print_line_t
612 print_graph_function(struct trace_iterator *iter)
614 return TRACE_TYPE_UNHANDLED;
616 #endif /* CONFIG_FUNCTION_GRAPH_TRACER */
618 extern struct pid *ftrace_pid_trace;
620 #ifdef CONFIG_FUNCTION_TRACER
621 static inline int ftrace_trace_task(struct task_struct *task)
623 if (!ftrace_pid_trace)
626 return test_tsk_trace_trace(task);
629 static inline int ftrace_trace_task(struct task_struct *task)
636 * trace_iterator_flags is an enumeration that defines bit
637 * positions into trace_flags that controls the output.
639 * NOTE: These bits must match the trace_options array in
642 enum trace_iterator_flags {
643 TRACE_ITER_PRINT_PARENT = 0x01,
644 TRACE_ITER_SYM_OFFSET = 0x02,
645 TRACE_ITER_SYM_ADDR = 0x04,
646 TRACE_ITER_VERBOSE = 0x08,
647 TRACE_ITER_RAW = 0x10,
648 TRACE_ITER_HEX = 0x20,
649 TRACE_ITER_BIN = 0x40,
650 TRACE_ITER_BLOCK = 0x80,
651 TRACE_ITER_STACKTRACE = 0x100,
652 TRACE_ITER_SCHED_TREE = 0x200,
653 TRACE_ITER_PRINTK = 0x400,
654 TRACE_ITER_PREEMPTONLY = 0x800,
655 TRACE_ITER_BRANCH = 0x1000,
656 TRACE_ITER_ANNOTATE = 0x2000,
657 TRACE_ITER_USERSTACKTRACE = 0x4000,
658 TRACE_ITER_SYM_USEROBJ = 0x8000,
659 TRACE_ITER_PRINTK_MSGONLY = 0x10000,
660 TRACE_ITER_CONTEXT_INFO = 0x20000, /* Print pid/cpu/time */
661 TRACE_ITER_LATENCY_FMT = 0x40000,
662 TRACE_ITER_SLEEP_TIME = 0x80000,
663 TRACE_ITER_GRAPH_TIME = 0x100000,
667 * TRACE_ITER_SYM_MASK masks the options in trace_flags that
668 * control the output of kernel symbols.
670 #define TRACE_ITER_SYM_MASK \
671 (TRACE_ITER_PRINT_PARENT|TRACE_ITER_SYM_OFFSET|TRACE_ITER_SYM_ADDR)
673 extern struct tracer nop_trace;
676 * ftrace_preempt_disable - disable preemption scheduler safe
678 * When tracing can happen inside the scheduler, there exists
679 * cases that the tracing might happen before the need_resched
680 * flag is checked. If this happens and the tracer calls
681 * preempt_enable (after a disable), a schedule might take place
682 * causing an infinite recursion.
684 * To prevent this, we read the need_resched flag before
685 * disabling preemption. When we want to enable preemption we
686 * check the flag, if it is set, then we call preempt_enable_no_resched.
687 * Otherwise, we call preempt_enable.
689 * The rational for doing the above is that if need_resched is set
690 * and we have yet to reschedule, we are either in an atomic location
691 * (where we do not need to check for scheduling) or we are inside
692 * the scheduler and do not want to resched.
694 static inline int ftrace_preempt_disable(void)
698 resched = need_resched();
699 preempt_disable_notrace();
705 * ftrace_preempt_enable - enable preemption scheduler safe
706 * @resched: the return value from ftrace_preempt_disable
708 * This is a scheduler safe way to enable preemption and not miss
709 * any preemption checks. The disabled saved the state of preemption.
710 * If resched is set, then we are either inside an atomic or
711 * are inside the scheduler (we would have already scheduled
712 * otherwise). In this case, we do not want to call normal
713 * preempt_enable, but preempt_enable_no_resched instead.
715 static inline void ftrace_preempt_enable(int resched)
718 preempt_enable_no_resched_notrace();
720 preempt_enable_notrace();
723 #ifdef CONFIG_BRANCH_TRACER
724 extern int enable_branch_tracing(struct trace_array *tr);
725 extern void disable_branch_tracing(void);
726 static inline int trace_branch_enable(struct trace_array *tr)
728 if (trace_flags & TRACE_ITER_BRANCH)
729 return enable_branch_tracing(tr);
732 static inline void trace_branch_disable(void)
734 /* due to races, always disable */
735 disable_branch_tracing();
738 static inline int trace_branch_enable(struct trace_array *tr)
742 static inline void trace_branch_disable(void)
745 #endif /* CONFIG_BRANCH_TRACER */
747 /* set ring buffers to default size if not already done so */
748 int tracing_update_buffers(void);
750 /* trace event type bit fields, not numeric */
752 TRACE_EVENT_TYPE_PRINTF = 1,
753 TRACE_EVENT_TYPE_RAW = 2,
756 struct ftrace_event_field {
757 struct list_head link;
766 struct event_filter {
768 struct filter_pred **preds;
773 struct event_subsystem {
774 struct list_head list;
776 struct dentry *entry;
777 struct event_filter *filter;
783 typedef int (*filter_pred_fn_t) (struct filter_pred *pred, void *event,
789 char str_val[MAX_FILTER_STR_VAL];
798 extern void print_event_filter(struct ftrace_event_call *call,
799 struct trace_seq *s);
800 extern int apply_event_filter(struct ftrace_event_call *call,
801 char *filter_string);
802 extern int apply_subsystem_event_filter(struct event_subsystem *system,
803 char *filter_string);
804 extern void print_subsystem_event_filter(struct event_subsystem *system,
805 struct trace_seq *s);
806 extern int filter_assign_type(const char *type);
809 filter_check_discard(struct ftrace_event_call *call, void *rec,
810 struct ring_buffer *buffer,
811 struct ring_buffer_event *event)
813 if (unlikely(call->filter_active) && !filter_match_preds(call, rec)) {
814 ring_buffer_discard_commit(buffer, event);
821 #define DEFINE_COMPARISON_PRED(type) \
822 static int filter_pred_##type(struct filter_pred *pred, void *event, \
823 int val1, int val2) \
825 type *addr = (type *)(event + pred->offset); \
826 type val = (type)pred->val; \
829 switch (pred->op) { \
831 match = (*addr < val); \
834 match = (*addr <= val); \
837 match = (*addr > val); \
840 match = (*addr >= val); \
849 #define DEFINE_EQUALITY_PRED(size) \
850 static int filter_pred_##size(struct filter_pred *pred, void *event, \
851 int val1, int val2) \
853 u##size *addr = (u##size *)(event + pred->offset); \
854 u##size val = (u##size)pred->val; \
857 match = (val == *addr) ^ pred->not; \
862 extern struct mutex event_mutex;
863 extern struct list_head ftrace_events;
865 extern const char *__start___trace_bprintk_fmt[];
866 extern const char *__stop___trace_bprintk_fmt[];
868 #undef TRACE_EVENT_FORMAT
869 #define TRACE_EVENT_FORMAT(call, proto, args, fmt, tstruct, tpfmt) \
870 extern struct ftrace_event_call event_##call;
871 #undef TRACE_EVENT_FORMAT_NOFILTER
872 #define TRACE_EVENT_FORMAT_NOFILTER(call, proto, args, fmt, tstruct, tpfmt)
873 #include "trace_event_types.h"
875 #endif /* _LINUX_KERNEL_TRACE_H */