aboutsummaryrefslogtreecommitdiff
path: root/tools/perf/util/hist.h
blob: 587d375d34300daa09948c1a0d95407b4f8439fa (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
#ifndef __PERF_HIST_H
#define __PERF_HIST_H

#include <linux/types.h>
#include "callchain.h"

extern struct callchain_param callchain_param;

struct hist_entry;
struct addr_location;
struct symbol;
struct rb_root;

struct objdump_line {
	struct list_head node;
	s64		 offset;
	char		 *line;
};

void objdump_line__free(struct objdump_line *self);
struct objdump_line *objdump__get_next_ip_line(struct list_head *head,
					       struct objdump_line *pos);

struct sym_hist {
	u64		sum;
	u64		ip[0];
};

struct sym_ext {
	struct rb_node	node;
	double		percent;
	char		*path;
};

struct sym_priv {
	struct sym_hist	*hist;
	struct sym_ext	*ext;
};

/*
 * The kernel collects the number of events it couldn't send in a stretch and
 * when possible sends this number in a PERF_RECORD_LOST event. The number of
 * such "chunks" of lost events is stored in .nr_events[PERF_EVENT_LOST] while
 * total_lost tells exactly how many events the kernel in fact lost, i.e. it is
 * the sum of all struct lost_event.lost fields reported.
 *
 * The total_period is needed because by default auto-freq is used, so
 * multipling nr_events[PERF_EVENT_SAMPLE] by a frequency isn't possible to get
 * the total number of low level events, it is necessary to to sum all struct
 * sample_event.period and stash the result in total_period.
 */
struct events_stats {
	u64 total_period;
	u64 total_lost;
	u32 nr_events[PERF_RECORD_HEADER_MAX];
	u32 nr_unknown_events;
};

enum hist_column {
	HISTC_SYMBOL,
	HISTC_DSO,
	HISTC_THREAD,
	HISTC_COMM,
	HISTC_PARENT,
	HISTC_CPU,
	HISTC_NR_COLS, /* Last entry */
};

struct hists {
	struct rb_node		rb_node;
	struct rb_root		entries;
	u64			nr_entries;
	struct events_stats	stats;
	u64			config;
	u64			event_stream;
	u32			type;
	u16			col_len[HISTC_NR_COLS];
};

struct hist_entry *__hists__add_entry(struct hists *self,
				      struct addr_location *al,
				      struct symbol *parent, u64 period);
extern int64_t hist_entry__cmp(struct hist_entry *, struct hist_entry *);
extern int64_t hist_entry__collapse(struct hist_entry *, struct hist_entry *);
int hist_entry__fprintf(struct hist_entry *self, struct hists *hists,
			struct hists *pair_hists, bool show_displacement,
			long displacement, FILE *fp, u64 total);
int hist_entry__snprintf(struct hist_entry *self, char *bf, size_t size,
			 struct hists *hists, struct hists *pair_hists,
			 bool show_displacement, long displacement,
			 bool color, u64 total);
void hist_entry__free(struct hist_entry *);

void hists__output_resort(struct hists *self);
void hists__collapse_resort(struct hists *self);

void hists__inc_nr_events(struct hists *self, u32 type);
size_t hists__fprintf_nr_events(struct hists *self, FILE *fp);

size_t hists__fprintf(struct hists *self, struct hists *pair,
		      bool show_displacement, FILE *fp);

int hist_entry__inc_addr_samples(struct hist_entry *self, u64 ip);
int hist_entry__annotate(struct hist_entry *self, struct list_head *head,
			 size_t privsize);

void hists__filter_by_dso(struct hists *self, const struct dso *dso);
void hists__filter_by_thread(struct hists *self, const struct thread *thread);

u16 hists__col_len(struct hists *self, enum hist_column col);
void hists__set_col_len(struct hists *self, enum hist_column col, u16 len);
bool hists__new_col_len(struct hists *self, enum hist_column col, u16 len);

#ifdef NO_NEWT_SUPPORT
static inline int hists__browse(struct hists *self __used,
				const char *helpline __used,
				const char *ev_name __used)
{
	return 0;
}

static inline int hists__tui_browse_tree(struct rb_root *self __used,
					 const char *help __used)
{
	return 0;
}

static inline int hist_entry__tui_annotate(struct hist_entry *self __used)
{
	return 0;
}
#define KEY_LEFT -1
#define KEY_RIGHT -2
#else
#include <newt.h>
int hists__browse(struct hists *self, const char *helpline,
		  const char *ev_name);
int hist_entry__tui_annotate(struct hist_entry *self);

#define KEY_LEFT NEWT_KEY_LEFT
#define KEY_RIGHT NEWT_KEY_RIGHT

int hists__tui_browse_tree(struct rb_root *self, const char *help);
#endif

unsigned int hists__sort_list_width(struct hists *self);

#endif	/* __PERF_HIST_H */