#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;
const char *ftrace_print_symbols_seq(struct trace_seq *p, unsigned long val,
const struct trace_print_flags *symbol_array);
+const char *ftrace_print_hex_seq(struct trace_seq *p,
+ const unsigned char *buf, int len);
+
/*
* 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:
unsigned char flags;
unsigned char preempt_count;
int pid;
- int tgid;
+ int lock_depth;
};
#define FTRACE_MAX_EVENT \
/* The below is zeroed out in pipe_read */
struct trace_seq seq;
struct trace_entry *ent;
+ unsigned long lost_events;
+ int leftover;
int cpu;
u64 ts;
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 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 ftrace_event_call *call,
- struct trace_seq *s);
+ const char *print_fmt;
+ int (*raw_init)(struct ftrace_event_call *);
int (*define_fields)(struct ftrace_event_call *);
struct list_head fields;
int filter_active;
void *mod;
void *data;
- atomic_t profile_count;
- int (*profile_enable)(struct ftrace_event_call *);
- void (*profile_disable)(struct ftrace_event_call *);
+ int perf_refcount;
+ int (*perf_event_enable)(struct ftrace_event_call *);
+ void (*perf_event_disable)(struct ftrace_event_call *);
};
+#define PERF_MAX_TRACE_SIZE 2048
+
#define MAX_FILTER_PRED 32
-#define MAX_FILTER_STR_VAL 128
+#define MAX_FILTER_STR_VAL 256 /* Should handle KSYM_SYMBOL_LEN */
-extern int init_preds(struct ftrace_event_call *call);
extern void destroy_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,
+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, int is_signed);
+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)
__trace_printk(ip, fmt, ##args); \
} while (0)
-#define __common_field(type, item, is_signed) \
- ret = trace_define_field(event_call, #type, "common_" #item, \
- offsetof(typeof(field.ent), item), \
- sizeof(field.ent.item), is_signed); \
- if (ret) \
- return ret;
+#ifdef CONFIG_PERF_EVENTS
+struct perf_event;
+
+DECLARE_PER_CPU(struct pt_regs, perf_trace_regs);
+
+extern int perf_trace_enable(int event_id);
+extern void perf_trace_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 *
+perf_trace_buf_prepare(int size, unsigned short type, int *rctxp,
+ unsigned long *irq_flags);
+
+static inline void
+perf_trace_buf_submit(void *raw_data, int size, int rctx, u64 addr,
+ u64 count, unsigned long irq_flags, struct pt_regs *regs)
+{
+ struct trace_entry *entry = raw_data;
+
+ perf_tp_event(entry->type, addr, count, raw_data, size, regs);
+ perf_swevent_put_recursion_context(rctx);
+ local_irq_restore(irq_flags);
+}
+#endif
#endif /* _LINUX_FTRACE_EVENT_H */