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,
48 * Function trace entry - function address and parent function addres:
51 struct trace_entry ent;
53 unsigned long parent_ip;
56 /* Function call entry */
57 struct ftrace_graph_ent_entry {
58 struct trace_entry ent;
59 struct ftrace_graph_ent graph_ent;
62 /* Function return entry */
63 struct ftrace_graph_ret_entry {
64 struct trace_entry ent;
65 struct ftrace_graph_ret ret;
67 extern struct tracer boot_tracer;
70 * Context switch trace entry - which task (and prio) we switched from/to:
72 struct ctx_switch_entry {
73 struct trace_entry ent;
74 unsigned int prev_pid;
75 unsigned char prev_prio;
76 unsigned char prev_state;
77 unsigned int next_pid;
78 unsigned char next_prio;
79 unsigned char next_state;
80 unsigned int next_cpu;
84 * Special (free-form) trace entry:
86 struct special_entry {
87 struct trace_entry ent;
97 #define FTRACE_STACK_ENTRIES 8
100 struct trace_entry ent;
101 unsigned long caller[FTRACE_STACK_ENTRIES];
104 struct userstack_entry {
105 struct trace_entry ent;
106 unsigned long caller[FTRACE_STACK_ENTRIES];
110 * trace_printk entry:
112 struct bprint_entry {
113 struct trace_entry ent;
120 struct trace_entry ent;
125 #define TRACE_OLD_SIZE 88
127 struct trace_field_cont {
129 /* Temporary till we get rid of this completely */
130 char buf[TRACE_OLD_SIZE - 1];
133 struct trace_mmiotrace_rw {
134 struct trace_entry ent;
135 struct mmiotrace_rw rw;
138 struct trace_mmiotrace_map {
139 struct trace_entry ent;
140 struct mmiotrace_map map;
143 struct trace_boot_call {
144 struct trace_entry ent;
145 struct boot_trace_call boot_call;
148 struct trace_boot_ret {
149 struct trace_entry ent;
150 struct boot_trace_ret boot_ret;
153 #define TRACE_FUNC_SIZE 30
154 #define TRACE_FILE_SIZE 20
155 struct trace_branch {
156 struct trace_entry ent;
158 char func[TRACE_FUNC_SIZE+1];
159 char file[TRACE_FILE_SIZE+1];
163 struct hw_branch_entry {
164 struct trace_entry ent;
170 struct trace_entry ent;
171 struct power_trace state_data;
174 enum kmemtrace_type_id {
175 KMEMTRACE_TYPE_KMALLOC = 0, /* kmalloc() or kfree(). */
176 KMEMTRACE_TYPE_CACHE, /* kmem_cache_*(). */
177 KMEMTRACE_TYPE_PAGES, /* __get_free_pages() and friends. */
180 struct kmemtrace_alloc_entry {
181 struct trace_entry ent;
182 enum kmemtrace_type_id type_id;
183 unsigned long call_site;
191 struct kmemtrace_free_entry {
192 struct trace_entry ent;
193 enum kmemtrace_type_id type_id;
194 unsigned long call_site;
198 struct syscall_trace_enter {
199 struct trace_entry ent;
201 unsigned long args[];
204 struct syscall_trace_exit {
205 struct trace_entry ent;
210 struct kprobe_trace_entry {
211 struct trace_entry ent;
214 unsigned long args[];
217 #define SIZEOF_KPROBE_TRACE_ENTRY(n) \
218 (offsetof(struct kprobe_trace_entry, args) + \
219 (sizeof(unsigned long) * (n)))
221 struct kretprobe_trace_entry {
222 struct trace_entry ent;
224 unsigned long ret_ip;
226 unsigned long args[];
229 #define SIZEOF_KRETPROBE_TRACE_ENTRY(n) \
230 (offsetof(struct kretprobe_trace_entry, args) + \
231 (sizeof(unsigned long) * (n)))
236 * trace_flag_type is an enumeration that holds different
237 * states when a trace occurs. These are:
238 * IRQS_OFF - interrupts were disabled
239 * IRQS_NOSUPPORT - arch does not support irqs_disabled_flags
240 * NEED_RESCED - reschedule is requested
241 * HARDIRQ - inside an interrupt handler
242 * SOFTIRQ - inside a softirq handler
244 enum trace_flag_type {
245 TRACE_FLAG_IRQS_OFF = 0x01,
246 TRACE_FLAG_IRQS_NOSUPPORT = 0x02,
247 TRACE_FLAG_NEED_RESCHED = 0x04,
248 TRACE_FLAG_HARDIRQ = 0x08,
249 TRACE_FLAG_SOFTIRQ = 0x10,
252 #define TRACE_BUF_SIZE 1024
255 * The CPU trace array - it consists of thousands of trace entries
256 * plus some other descriptor data: (for example which task started
259 struct trace_array_cpu {
261 void *buffer_page; /* ring buffer spare */
263 /* these fields get copied into max-trace: */
264 unsigned long trace_idx;
265 unsigned long overrun;
266 unsigned long saved_latency;
267 unsigned long critical_start;
268 unsigned long critical_end;
269 unsigned long critical_sequence;
271 unsigned long policy;
272 unsigned long rt_priority;
273 cycle_t preempt_timestamp;
276 char comm[TASK_COMM_LEN];
280 * The trace array - an array of per-CPU trace arrays. This is the
281 * highest level data structure that individual tracers deal with.
282 * They have on/off state as well:
285 struct ring_buffer *buffer;
286 unsigned long entries;
289 struct task_struct *waiter;
290 struct trace_array_cpu *data[NR_CPUS];
293 #define FTRACE_CMP_TYPE(var, type) \
294 __builtin_types_compatible_p(typeof(var), type *)
297 #define IF_ASSIGN(var, entry, etype, id) \
298 if (FTRACE_CMP_TYPE(var, etype)) { \
299 var = (typeof(var))(entry); \
300 WARN_ON(id && (entry)->type != id); \
304 /* Will cause compile errors if type is not found. */
305 extern void __ftrace_bad_type(void);
308 * The trace_assign_type is a verifier that the entry type is
309 * the same as the type being assigned. To add new types simply
310 * add a line with the following format:
312 * IF_ASSIGN(var, ent, type, id);
314 * Where "type" is the trace type that includes the trace_entry
315 * as the "ent" item. And "id" is the trace identifier that is
316 * used in the trace_type enum.
318 * If the type can have more than one id, then use zero.
320 #define trace_assign_type(var, ent) \
322 IF_ASSIGN(var, ent, struct ftrace_entry, TRACE_FN); \
323 IF_ASSIGN(var, ent, struct ctx_switch_entry, 0); \
324 IF_ASSIGN(var, ent, struct stack_entry, TRACE_STACK); \
325 IF_ASSIGN(var, ent, struct userstack_entry, TRACE_USER_STACK);\
326 IF_ASSIGN(var, ent, struct print_entry, TRACE_PRINT); \
327 IF_ASSIGN(var, ent, struct bprint_entry, TRACE_BPRINT); \
328 IF_ASSIGN(var, ent, struct special_entry, 0); \
329 IF_ASSIGN(var, ent, struct trace_mmiotrace_rw, \
331 IF_ASSIGN(var, ent, struct trace_mmiotrace_map, \
333 IF_ASSIGN(var, ent, struct trace_boot_call, TRACE_BOOT_CALL);\
334 IF_ASSIGN(var, ent, struct trace_boot_ret, TRACE_BOOT_RET);\
335 IF_ASSIGN(var, ent, struct trace_branch, TRACE_BRANCH); \
336 IF_ASSIGN(var, ent, struct ftrace_graph_ent_entry, \
338 IF_ASSIGN(var, ent, struct ftrace_graph_ret_entry, \
340 IF_ASSIGN(var, ent, struct hw_branch_entry, TRACE_HW_BRANCHES);\
341 IF_ASSIGN(var, ent, struct trace_power, TRACE_POWER); \
342 IF_ASSIGN(var, ent, struct kmemtrace_alloc_entry, \
344 IF_ASSIGN(var, ent, struct kmemtrace_free_entry, \
346 IF_ASSIGN(var, ent, struct kprobe_trace_entry, \
348 IF_ASSIGN(var, ent, struct kretprobe_trace_entry, \
350 __ftrace_bad_type(); \
354 * An option specific to a tracer. This is a boolean value.
355 * The bit is the bit index that sets its value on the
356 * flags value in struct tracer_flags.
359 const char *name; /* Will appear on the trace_options file */
360 u32 bit; /* Mask assigned in val field in tracer_flags */
364 * The set of specific options for a tracer. Your tracer
365 * have to set the initial value of the flags val.
367 struct tracer_flags {
369 struct tracer_opt *opts;
372 /* Makes more easy to define a tracer opt */
373 #define TRACER_OPT(s, b) .name = #s, .bit = b
377 * struct tracer - a specific tracer and its callbacks to interact with debugfs
378 * @name: the name chosen to select it on the available_tracers file
379 * @init: called when one switches to this tracer (echo name > current_tracer)
380 * @reset: called when one switches to another tracer
381 * @start: called when tracing is unpaused (echo 1 > tracing_enabled)
382 * @stop: called when tracing is paused (echo 0 > tracing_enabled)
383 * @open: called when the trace file is opened
384 * @pipe_open: called when the trace_pipe file is opened
385 * @wait_pipe: override how the user waits for traces on trace_pipe
386 * @close: called when the trace file is released
387 * @read: override the default read callback on trace_pipe
388 * @splice_read: override the default splice_read callback on trace_pipe
389 * @selftest: selftest to run on boot (see trace_selftest.c)
390 * @print_headers: override the first lines that describe your columns
391 * @print_line: callback that prints a trace
392 * @set_flag: signals one of your private flags changed (trace_options file)
393 * @flags: your private flags
397 int (*init)(struct trace_array *tr);
398 void (*reset)(struct trace_array *tr);
399 void (*start)(struct trace_array *tr);
400 void (*stop)(struct trace_array *tr);
401 void (*open)(struct trace_iterator *iter);
402 void (*pipe_open)(struct trace_iterator *iter);
403 void (*wait_pipe)(struct trace_iterator *iter);
404 void (*close)(struct trace_iterator *iter);
405 ssize_t (*read)(struct trace_iterator *iter,
406 struct file *filp, char __user *ubuf,
407 size_t cnt, loff_t *ppos);
408 ssize_t (*splice_read)(struct trace_iterator *iter,
411 struct pipe_inode_info *pipe,
414 #ifdef CONFIG_FTRACE_STARTUP_TEST
415 int (*selftest)(struct tracer *trace,
416 struct trace_array *tr);
418 void (*print_header)(struct seq_file *m);
419 enum print_line_t (*print_line)(struct trace_iterator *iter);
420 /* If you handled the flag setting, return 0 */
421 int (*set_flag)(u32 old_flags, u32 bit, int set);
424 struct tracer_flags *flags;
425 struct tracer_stat *stats;
429 #define TRACE_PIPE_ALL_CPU -1
431 int tracer_init(struct tracer *t, struct trace_array *tr);
432 int tracing_is_enabled(void);
433 void trace_wake_up(void);
434 void tracing_reset(struct trace_array *tr, int cpu);
435 void tracing_reset_online_cpus(struct trace_array *tr);
436 void tracing_reset_current(int cpu);
437 void tracing_reset_current_online_cpus(void);
438 int tracing_open_generic(struct inode *inode, struct file *filp);
439 struct dentry *trace_create_file(const char *name,
441 struct dentry *parent,
443 const struct file_operations *fops);
445 struct dentry *tracing_init_dentry(void);
446 void init_tracer_sysprof_debugfs(struct dentry *d_tracer);
448 struct ring_buffer_event;
450 struct ring_buffer_event *trace_buffer_lock_reserve(struct trace_array *tr,
455 void trace_buffer_unlock_commit(struct trace_array *tr,
456 struct ring_buffer_event *event,
457 unsigned long flags, int pc);
459 struct trace_entry *tracing_get_trace_entry(struct trace_array *tr,
460 struct trace_array_cpu *data);
462 struct trace_entry *trace_find_next_entry(struct trace_iterator *iter,
463 int *ent_cpu, u64 *ent_ts);
465 void default_wait_pipe(struct trace_iterator *iter);
466 void poll_wait_pipe(struct trace_iterator *iter);
468 void ftrace(struct trace_array *tr,
469 struct trace_array_cpu *data,
471 unsigned long parent_ip,
472 unsigned long flags, int pc);
473 void tracing_sched_switch_trace(struct trace_array *tr,
474 struct task_struct *prev,
475 struct task_struct *next,
476 unsigned long flags, int pc);
478 void tracing_sched_wakeup_trace(struct trace_array *tr,
479 struct task_struct *wakee,
480 struct task_struct *cur,
481 unsigned long flags, int pc);
482 void trace_special(struct trace_array *tr,
483 struct trace_array_cpu *data,
486 unsigned long arg3, int pc);
487 void trace_function(struct trace_array *tr,
489 unsigned long parent_ip,
490 unsigned long flags, int pc);
492 void trace_graph_return(struct ftrace_graph_ret *trace);
493 int trace_graph_entry(struct ftrace_graph_ent *trace);
494 void set_graph_array(struct trace_array *tr);
496 void tracing_start_cmdline_record(void);
497 void tracing_stop_cmdline_record(void);
498 void tracing_sched_switch_assign_trace(struct trace_array *tr);
499 void tracing_stop_sched_switch_record(void);
500 void tracing_start_sched_switch_record(void);
501 int register_tracer(struct tracer *type);
502 void unregister_tracer(struct tracer *type);
504 extern unsigned long nsecs_to_usecs(unsigned long nsecs);
506 extern unsigned long tracing_max_latency;
507 extern unsigned long tracing_thresh;
509 void update_max_tr(struct trace_array *tr, struct task_struct *tsk, int cpu);
510 void update_max_tr_single(struct trace_array *tr,
511 struct task_struct *tsk, int cpu);
513 #ifdef CONFIG_STACKTRACE
514 void ftrace_trace_stack(struct trace_array *tr, unsigned long flags,
517 void ftrace_trace_userstack(struct trace_array *tr, unsigned long flags,
520 void __trace_stack(struct trace_array *tr, unsigned long flags, int skip,
523 static inline void ftrace_trace_stack(struct trace_array *tr,
524 unsigned long flags, int skip, int pc)
528 static inline void ftrace_trace_userstack(struct trace_array *tr,
529 unsigned long flags, int pc)
533 static inline void __trace_stack(struct trace_array *tr, unsigned long flags,
537 #endif /* CONFIG_STACKTRACE */
539 extern cycle_t ftrace_now(int cpu);
541 #ifdef CONFIG_CONTEXT_SWITCH_TRACER
543 (*tracer_switch_func_t)(void *private,
545 struct task_struct *prev,
546 struct task_struct *next);
548 struct tracer_switch_ops {
549 tracer_switch_func_t func;
551 struct tracer_switch_ops *next;
553 #endif /* CONFIG_CONTEXT_SWITCH_TRACER */
555 extern void trace_find_cmdline(int pid, char comm[]);
557 #ifdef CONFIG_DYNAMIC_FTRACE
558 extern unsigned long ftrace_update_tot_cnt;
559 #define DYN_FTRACE_TEST_NAME trace_selftest_dynamic_test_func
560 extern int DYN_FTRACE_TEST_NAME(void);
563 extern int ring_buffer_expanded;
564 extern bool tracing_selftest_disabled;
565 DECLARE_PER_CPU(local_t, ftrace_cpu_disabled);
567 #ifdef CONFIG_FTRACE_STARTUP_TEST
568 extern int trace_selftest_startup_function(struct tracer *trace,
569 struct trace_array *tr);
570 extern int trace_selftest_startup_function_graph(struct tracer *trace,
571 struct trace_array *tr);
572 extern int trace_selftest_startup_irqsoff(struct tracer *trace,
573 struct trace_array *tr);
574 extern int trace_selftest_startup_preemptoff(struct tracer *trace,
575 struct trace_array *tr);
576 extern int trace_selftest_startup_preemptirqsoff(struct tracer *trace,
577 struct trace_array *tr);
578 extern int trace_selftest_startup_wakeup(struct tracer *trace,
579 struct trace_array *tr);
580 extern int trace_selftest_startup_nop(struct tracer *trace,
581 struct trace_array *tr);
582 extern int trace_selftest_startup_sched_switch(struct tracer *trace,
583 struct trace_array *tr);
584 extern int trace_selftest_startup_sysprof(struct tracer *trace,
585 struct trace_array *tr);
586 extern int trace_selftest_startup_branch(struct tracer *trace,
587 struct trace_array *tr);
588 extern int trace_selftest_startup_hw_branches(struct tracer *trace,
589 struct trace_array *tr);
590 #endif /* CONFIG_FTRACE_STARTUP_TEST */
592 extern void *head_page(struct trace_array_cpu *data);
593 extern unsigned long long ns2usecs(cycle_t nsec);
595 trace_vbprintk(unsigned long ip, const char *fmt, va_list args);
597 trace_vprintk(unsigned long ip, const char *fmt, va_list args);
599 extern unsigned long trace_flags;
601 extern int trace_clock_id;
603 /* Standard output formatting function used for function return traces */
604 #ifdef CONFIG_FUNCTION_GRAPH_TRACER
605 extern enum print_line_t print_graph_function(struct trace_iterator *iter);
606 extern enum print_line_t
607 trace_print_graph_duration(unsigned long long duration, struct trace_seq *s);
609 #ifdef CONFIG_DYNAMIC_FTRACE
610 /* TODO: make this variable */
611 #define FTRACE_GRAPH_MAX_FUNCS 32
612 extern int ftrace_graph_count;
613 extern unsigned long ftrace_graph_funcs[FTRACE_GRAPH_MAX_FUNCS];
615 static inline int ftrace_graph_addr(unsigned long addr)
619 if (!ftrace_graph_count || test_tsk_trace_graph(current))
622 for (i = 0; i < ftrace_graph_count; i++) {
623 if (addr == ftrace_graph_funcs[i])
630 static inline int ftrace_trace_addr(unsigned long addr)
634 static inline int ftrace_graph_addr(unsigned long addr)
638 #endif /* CONFIG_DYNAMIC_FTRACE */
639 #else /* CONFIG_FUNCTION_GRAPH_TRACER */
640 static inline enum print_line_t
641 print_graph_function(struct trace_iterator *iter)
643 return TRACE_TYPE_UNHANDLED;
645 #endif /* CONFIG_FUNCTION_GRAPH_TRACER */
647 extern struct pid *ftrace_pid_trace;
649 #ifdef CONFIG_FUNCTION_TRACER
650 static inline int ftrace_trace_task(struct task_struct *task)
652 if (!ftrace_pid_trace)
655 return test_tsk_trace_trace(task);
658 static inline int ftrace_trace_task(struct task_struct *task)
665 * trace_iterator_flags is an enumeration that defines bit
666 * positions into trace_flags that controls the output.
668 * NOTE: These bits must match the trace_options array in
671 enum trace_iterator_flags {
672 TRACE_ITER_PRINT_PARENT = 0x01,
673 TRACE_ITER_SYM_OFFSET = 0x02,
674 TRACE_ITER_SYM_ADDR = 0x04,
675 TRACE_ITER_VERBOSE = 0x08,
676 TRACE_ITER_RAW = 0x10,
677 TRACE_ITER_HEX = 0x20,
678 TRACE_ITER_BIN = 0x40,
679 TRACE_ITER_BLOCK = 0x80,
680 TRACE_ITER_STACKTRACE = 0x100,
681 TRACE_ITER_SCHED_TREE = 0x200,
682 TRACE_ITER_PRINTK = 0x400,
683 TRACE_ITER_PREEMPTONLY = 0x800,
684 TRACE_ITER_BRANCH = 0x1000,
685 TRACE_ITER_ANNOTATE = 0x2000,
686 TRACE_ITER_USERSTACKTRACE = 0x4000,
687 TRACE_ITER_SYM_USEROBJ = 0x8000,
688 TRACE_ITER_PRINTK_MSGONLY = 0x10000,
689 TRACE_ITER_CONTEXT_INFO = 0x20000, /* Print pid/cpu/time */
690 TRACE_ITER_LATENCY_FMT = 0x40000,
691 TRACE_ITER_SLEEP_TIME = 0x80000,
692 TRACE_ITER_GRAPH_TIME = 0x100000,
696 * TRACE_ITER_SYM_MASK masks the options in trace_flags that
697 * control the output of kernel symbols.
699 #define TRACE_ITER_SYM_MASK \
700 (TRACE_ITER_PRINT_PARENT|TRACE_ITER_SYM_OFFSET|TRACE_ITER_SYM_ADDR)
702 extern struct tracer nop_trace;
705 * ftrace_preempt_disable - disable preemption scheduler safe
707 * When tracing can happen inside the scheduler, there exists
708 * cases that the tracing might happen before the need_resched
709 * flag is checked. If this happens and the tracer calls
710 * preempt_enable (after a disable), a schedule might take place
711 * causing an infinite recursion.
713 * To prevent this, we read the need_resched flag before
714 * disabling preemption. When we want to enable preemption we
715 * check the flag, if it is set, then we call preempt_enable_no_resched.
716 * Otherwise, we call preempt_enable.
718 * The rational for doing the above is that if need_resched is set
719 * and we have yet to reschedule, we are either in an atomic location
720 * (where we do not need to check for scheduling) or we are inside
721 * the scheduler and do not want to resched.
723 static inline int ftrace_preempt_disable(void)
727 resched = need_resched();
728 preempt_disable_notrace();
734 * ftrace_preempt_enable - enable preemption scheduler safe
735 * @resched: the return value from ftrace_preempt_disable
737 * This is a scheduler safe way to enable preemption and not miss
738 * any preemption checks. The disabled saved the state of preemption.
739 * If resched is set, then we are either inside an atomic or
740 * are inside the scheduler (we would have already scheduled
741 * otherwise). In this case, we do not want to call normal
742 * preempt_enable, but preempt_enable_no_resched instead.
744 static inline void ftrace_preempt_enable(int resched)
747 preempt_enable_no_resched_notrace();
749 preempt_enable_notrace();
752 #ifdef CONFIG_BRANCH_TRACER
753 extern int enable_branch_tracing(struct trace_array *tr);
754 extern void disable_branch_tracing(void);
755 static inline int trace_branch_enable(struct trace_array *tr)
757 if (trace_flags & TRACE_ITER_BRANCH)
758 return enable_branch_tracing(tr);
761 static inline void trace_branch_disable(void)
763 /* due to races, always disable */
764 disable_branch_tracing();
767 static inline int trace_branch_enable(struct trace_array *tr)
771 static inline void trace_branch_disable(void)
774 #endif /* CONFIG_BRANCH_TRACER */
776 /* set ring buffers to default size if not already done so */
777 int tracing_update_buffers(void);
779 /* trace event type bit fields, not numeric */
781 TRACE_EVENT_TYPE_PRINTF = 1,
782 TRACE_EVENT_TYPE_RAW = 2,
785 struct ftrace_event_field {
786 struct list_head link;
795 struct event_filter {
797 struct filter_pred **preds;
802 struct event_subsystem {
803 struct list_head list;
805 struct dentry *entry;
806 struct event_filter *filter;
812 typedef int (*filter_pred_fn_t) (struct filter_pred *pred, void *event,
818 char str_val[MAX_FILTER_STR_VAL];
827 extern void print_event_filter(struct ftrace_event_call *call,
828 struct trace_seq *s);
829 extern int apply_event_filter(struct ftrace_event_call *call,
830 char *filter_string);
831 extern int apply_subsystem_event_filter(struct event_subsystem *system,
832 char *filter_string);
833 extern void print_subsystem_event_filter(struct event_subsystem *system,
834 struct trace_seq *s);
835 extern int filter_assign_type(const char *type);
838 filter_check_discard(struct ftrace_event_call *call, void *rec,
839 struct ring_buffer *buffer,
840 struct ring_buffer_event *event)
842 if (unlikely(call->filter_active) && !filter_match_preds(call, rec)) {
843 ring_buffer_discard_commit(buffer, event);
850 #define DEFINE_COMPARISON_PRED(type) \
851 static int filter_pred_##type(struct filter_pred *pred, void *event, \
852 int val1, int val2) \
854 type *addr = (type *)(event + pred->offset); \
855 type val = (type)pred->val; \
858 switch (pred->op) { \
860 match = (*addr < val); \
863 match = (*addr <= val); \
866 match = (*addr > val); \
869 match = (*addr >= val); \
878 #define DEFINE_EQUALITY_PRED(size) \
879 static int filter_pred_##size(struct filter_pred *pred, void *event, \
880 int val1, int val2) \
882 u##size *addr = (u##size *)(event + pred->offset); \
883 u##size val = (u##size)pred->val; \
886 match = (val == *addr) ^ pred->not; \
891 extern struct mutex event_mutex;
892 extern struct list_head ftrace_events;
894 extern const char *__start___trace_bprintk_fmt[];
895 extern const char *__stop___trace_bprintk_fmt[];
897 #undef TRACE_EVENT_FORMAT
898 #define TRACE_EVENT_FORMAT(call, proto, args, fmt, tstruct, tpfmt) \
899 extern struct ftrace_event_call event_##call;
900 #undef TRACE_EVENT_FORMAT_NOFILTER
901 #define TRACE_EVENT_FORMAT_NOFILTER(call, proto, args, fmt, tstruct, tpfmt)
902 #include "trace_event_types.h"
904 #endif /* _LINUX_KERNEL_TRACE_H */