#ifndef _LINUX_FTRACE_EVENT_H
#define _LINUX_FTRACE_EVENT_H
-#include <linux/trace_seq.h>
#include <linux/ring_buffer.h>
-
+#include <linux/trace_seq.h>
+#include <linux/percpu.h>
+#include <linux/hardirq.h>
+#include <linux/perf_event.h>
struct trace_array;
struct tracer;
struct dentry;
+DECLARE_PER_CPU(struct trace_seq, ftrace_event_seq);
+
+struct trace_print_flags {
+ unsigned long mask;
+ const char *name;
+};
+
+const char *ftrace_print_flags_seq(struct trace_seq *p, const char *delim,
+ unsigned long flags,
+ const struct trace_print_flags *flag_array);
+
+const char *ftrace_print_symbols_seq(struct trace_seq *p, unsigned long val,
+ const struct trace_print_flags *symbol_array);
+
/*
* The trace entry - the most basic unit of tracing. This is what
* is printed in the end as a single line in the trace output, such as:
* bash-15816 [01] 235.197585: idle_cpu <- irq_enter
*/
struct trace_entry {
- int type;
+ unsigned short type;
unsigned char flags;
unsigned char preempt_count;
int pid;
- int tgid;
+ int lock_depth;
};
+#define FTRACE_MAX_EVENT \
+ ((1 << (sizeof(((struct trace_entry *)0)->type) * 8)) - 1)
+
/*
* Trace iterator - used by printout routines who present trace
* results to users and which routines might sleep, etc:
int cpu_file;
struct mutex mutex;
struct ring_buffer_iter *buffer_iter[NR_CPUS];
+ unsigned long iter_flags;
/* The below is zeroed out in pipe_read */
struct trace_seq seq;
struct trace_entry *ent;
+ int leftover;
int cpu;
u64 ts;
- unsigned long iter_flags;
loff_t pos;
long idx;
int flags);
struct trace_event {
struct hlist_node node;
+ struct list_head list;
int type;
trace_print_func trace;
trace_print_func raw;
TRACE_TYPE_NO_CONSUME = 3 /* Handled but ask to not consume */
};
-
+void tracing_generic_entry_update(struct trace_entry *entry,
+ unsigned long flags,
+ int pc);
struct ring_buffer_event *
-trace_current_buffer_lock_reserve(int type, unsigned long len,
+trace_current_buffer_lock_reserve(struct ring_buffer **current_buffer,
+ int type, unsigned long len,
unsigned long flags, int pc);
-void trace_current_buffer_unlock_commit(struct ring_buffer_event *event,
+void trace_current_buffer_unlock_commit(struct ring_buffer *buffer,
+ struct ring_buffer_event *event,
unsigned long flags, int pc);
-void trace_nowake_buffer_unlock_commit(struct ring_buffer_event *event,
+void trace_nowake_buffer_unlock_commit(struct ring_buffer *buffer,
+ struct ring_buffer_event *event,
unsigned long flags, int pc);
-void trace_current_buffer_discard_commit(struct ring_buffer_event *event);
+void trace_current_buffer_discard_commit(struct ring_buffer *buffer,
+ struct ring_buffer_event *event);
void tracing_record_cmdline(struct task_struct *tsk);
+struct event_filter;
+
struct ftrace_event_call {
struct list_head list;
char *name;
struct dentry *dir;
struct trace_event *event;
int enabled;
- int (*regfunc)(void);
- void (*unregfunc)(void);
+ int (*regfunc)(struct ftrace_event_call *);
+ void (*unregfunc)(struct ftrace_event_call *);
int id;
- int (*raw_init)(void);
- int (*show_format)(struct trace_seq *s);
- int (*define_fields)(void);
+ const char *print_fmt;
+ int (*raw_init)(struct ftrace_event_call *);
+ int (*define_fields)(struct ftrace_event_call *);
struct list_head fields;
- int n_preds;
- struct filter_pred **preds;
+ int filter_active;
+ struct event_filter *filter;
void *mod;
+ void *data;
-#ifdef CONFIG_EVENT_PROFILE
- atomic_t profile_count;
- int (*profile_enable)(struct ftrace_event_call *);
- void (*profile_disable)(struct ftrace_event_call *);
-#endif
+ int profile_count;
+ int (*profile_enable)(struct ftrace_event_call *);
+ void (*profile_disable)(struct ftrace_event_call *);
};
-#define MAX_FILTER_PRED 8
-#define MAX_FILTER_STR_VAL 128
+#define FTRACE_MAX_PROFILE_SIZE 2048
-extern int init_preds(struct ftrace_event_call *call);
-extern int filter_match_preds(struct ftrace_event_call *call, void *rec);
-extern int filter_current_check_discard(struct ftrace_event_call *call,
+#define MAX_FILTER_PRED 32
+#define MAX_FILTER_STR_VAL 256 /* Should handle KSYM_SYMBOL_LEN */
+
+extern void destroy_preds(struct ftrace_event_call *call);
+extern int filter_match_preds(struct event_filter *filter, void *rec);
+extern int filter_current_check_discard(struct ring_buffer *buffer,
+ struct ftrace_event_call *call,
void *rec,
struct ring_buffer_event *event);
-extern int trace_define_field(struct ftrace_event_call *call, char *type,
- char *name, int offset, int size);
+enum {
+ FILTER_OTHER = 0,
+ FILTER_STATIC_STRING,
+ FILTER_DYN_STRING,
+ FILTER_PTR_STRING,
+};
+
+extern int trace_event_raw_init(struct ftrace_event_call *call);
+extern int trace_define_field(struct ftrace_event_call *call, const char *type,
+ const char *name, int offset, int size,
+ int is_signed, int filter_type);
+extern int trace_add_event_call(struct ftrace_event_call *call);
+extern void trace_remove_event_call(struct ftrace_event_call *call);
+#define is_signed_type(type) (((type)(-1)) < 0)
+
+int trace_set_clr_event(const char *system, const char *event, int set);
/*
* The double __builtin_constant_p is because gcc will give us an error
__trace_printk(ip, fmt, ##args); \
} while (0)
-#define __common_field(type, item) \
- ret = trace_define_field(event_call, #type, "common_" #item, \
- offsetof(typeof(field.ent), item), \
- sizeof(field.ent.item)); \
- if (ret) \
- return ret;
+#ifdef CONFIG_PERF_EVENTS
+struct perf_event;
+extern int ftrace_profile_enable(int event_id);
+extern void ftrace_profile_disable(int event_id);
+extern int ftrace_profile_set_filter(struct perf_event *event, int event_id,
+ char *filter_str);
+extern void ftrace_profile_free_filter(struct perf_event *event);
+extern void *
+ftrace_perf_buf_prepare(int size, unsigned short type, int *rctxp,
+ unsigned long *irq_flags);
+
+static inline void
+ftrace_perf_buf_submit(void *raw_data, int size, int rctx, u64 addr,
+ u64 count, unsigned long irq_flags)
+{
+ struct trace_entry *entry = raw_data;
+
+ perf_tp_event(entry->type, addr, count, raw_data, size);
+ perf_swevent_put_recursion_context(rctx);
+ local_irq_restore(irq_flags);
+}
+#endif
#endif /* _LINUX_FTRACE_EVENT_H */