xref: /linux/tools/perf/util/annotate.h (revision e0bf6c5ca2d3281f231c5f0c9bf145e9513644de)
1 #ifndef __PERF_ANNOTATE_H
2 #define __PERF_ANNOTATE_H
3 
4 #include <stdbool.h>
5 #include <stdint.h>
6 #include <linux/types.h>
7 #include "symbol.h"
8 #include "hist.h"
9 #include "sort.h"
10 #include <linux/list.h>
11 #include <linux/rbtree.h>
12 #include <pthread.h>
13 
14 struct ins;
15 
16 struct ins_operands {
17 	char	*raw;
18 	struct {
19 		char	*raw;
20 		char	*name;
21 		u64	addr;
22 		u64	offset;
23 	} target;
24 	union {
25 		struct {
26 			char	*raw;
27 			char	*name;
28 			u64	addr;
29 		} source;
30 		struct {
31 			struct ins *ins;
32 			struct ins_operands *ops;
33 		} locked;
34 	};
35 };
36 
37 struct ins_ops {
38 	void (*free)(struct ins_operands *ops);
39 	int (*parse)(struct ins_operands *ops);
40 	int (*scnprintf)(struct ins *ins, char *bf, size_t size,
41 			 struct ins_operands *ops);
42 };
43 
44 struct ins {
45 	const char     *name;
46 	struct ins_ops *ops;
47 };
48 
49 bool ins__is_jump(const struct ins *ins);
50 bool ins__is_call(const struct ins *ins);
51 int ins__scnprintf(struct ins *ins, char *bf, size_t size, struct ins_operands *ops);
52 
53 struct annotation;
54 
55 struct disasm_line {
56 	struct list_head    node;
57 	s64		    offset;
58 	char		    *line;
59 	char		    *name;
60 	struct ins	    *ins;
61 	int		    line_nr;
62 	struct ins_operands ops;
63 };
64 
65 static inline bool disasm_line__has_offset(const struct disasm_line *dl)
66 {
67 	return dl->ops.target.offset != UINT64_MAX;
68 }
69 
70 void disasm_line__free(struct disasm_line *dl);
71 struct disasm_line *disasm__get_next_ip_line(struct list_head *head, struct disasm_line *pos);
72 int disasm_line__scnprintf(struct disasm_line *dl, char *bf, size_t size, bool raw);
73 size_t disasm__fprintf(struct list_head *head, FILE *fp);
74 double disasm__calc_percent(struct annotation *notes, int evidx, s64 offset,
75 			    s64 end, const char **path);
76 
77 struct sym_hist {
78 	u64		sum;
79 	u64		addr[0];
80 };
81 
82 struct source_line_percent {
83 	double		percent;
84 	double		percent_sum;
85 };
86 
87 struct source_line {
88 	struct rb_node	node;
89 	char		*path;
90 	int		nr_pcnt;
91 	struct source_line_percent p[1];
92 };
93 
94 /** struct annotated_source - symbols with hits have this attached as in sannotation
95  *
96  * @histogram: Array of addr hit histograms per event being monitored
97  * @lines: If 'print_lines' is specified, per source code line percentages
98  * @source: source parsed from a disassembler like objdump -dS
99  *
100  * lines is allocated, percentages calculated and all sorted by percentage
101  * when the annotation is about to be presented, so the percentages are for
102  * one of the entries in the histogram array, i.e. for the event/counter being
103  * presented. It is deallocated right after symbol__{tui,tty,etc}_annotate
104  * returns.
105  */
106 struct annotated_source {
107 	struct list_head   source;
108 	struct source_line *lines;
109 	int    		   nr_histograms;
110 	int    		   sizeof_sym_hist;
111 	struct sym_hist	   histograms[0];
112 };
113 
114 struct annotation {
115 	pthread_mutex_t		lock;
116 	struct annotated_source *src;
117 };
118 
119 static inline struct sym_hist *annotation__histogram(struct annotation *notes, int idx)
120 {
121 	return (((void *)&notes->src->histograms) +
122 	 	(notes->src->sizeof_sym_hist * idx));
123 }
124 
125 static inline struct annotation *symbol__annotation(struct symbol *sym)
126 {
127 	return (void *)sym - symbol_conf.priv_size;
128 }
129 
130 int addr_map_symbol__inc_samples(struct addr_map_symbol *ams, int evidx);
131 
132 int hist_entry__inc_addr_samples(struct hist_entry *he, int evidx, u64 addr);
133 
134 int symbol__alloc_hist(struct symbol *sym);
135 void symbol__annotate_zero_histograms(struct symbol *sym);
136 
137 int symbol__annotate(struct symbol *sym, struct map *map, size_t privsize);
138 
139 int hist_entry__annotate(struct hist_entry *he, size_t privsize);
140 
141 int symbol__annotate_init(struct map *map __maybe_unused, struct symbol *sym);
142 int symbol__annotate_printf(struct symbol *sym, struct map *map,
143 			    struct perf_evsel *evsel, bool full_paths,
144 			    int min_pcnt, int max_lines, int context);
145 void symbol__annotate_zero_histogram(struct symbol *sym, int evidx);
146 void symbol__annotate_decay_histogram(struct symbol *sym, int evidx);
147 void disasm__purge(struct list_head *head);
148 
149 bool ui__has_annotation(void);
150 
151 int symbol__tty_annotate(struct symbol *sym, struct map *map,
152 			 struct perf_evsel *evsel, bool print_lines,
153 			 bool full_paths, int min_pcnt, int max_lines);
154 
155 #ifdef HAVE_SLANG_SUPPORT
156 int symbol__tui_annotate(struct symbol *sym, struct map *map,
157 			 struct perf_evsel *evsel,
158 			 struct hist_browser_timer *hbt);
159 #else
160 static inline int symbol__tui_annotate(struct symbol *sym __maybe_unused,
161 				struct map *map __maybe_unused,
162 				struct perf_evsel *evsel  __maybe_unused,
163 				struct hist_browser_timer *hbt
164 				__maybe_unused)
165 {
166 	return 0;
167 }
168 #endif
169 
170 extern const char	*disassembler_style;
171 
172 #endif	/* __PERF_ANNOTATE_H */
173