xref: /openbmc/linux/tools/perf/util/annotate.h (revision 12eb4683)
1 #ifndef __PERF_ANNOTATE_H
2 #define __PERF_ANNOTATE_H
3 
4 #include <stdbool.h>
5 #include <stdint.h>
6 #include "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 	struct ins_operands ops;
62 };
63 
64 static inline bool disasm_line__has_offset(const struct disasm_line *dl)
65 {
66 	return dl->ops.target.offset != UINT64_MAX;
67 }
68 
69 void disasm_line__free(struct disasm_line *dl);
70 struct disasm_line *disasm__get_next_ip_line(struct list_head *head, struct disasm_line *pos);
71 int disasm_line__scnprintf(struct disasm_line *dl, char *bf, size_t size, bool raw);
72 size_t disasm__fprintf(struct list_head *head, FILE *fp);
73 double disasm__calc_percent(struct annotation *notes, int evidx, s64 offset,
74 			    s64 end, const char **path);
75 
76 struct sym_hist {
77 	u64		sum;
78 	u64		addr[0];
79 };
80 
81 struct source_line_percent {
82 	double		percent;
83 	double		percent_sum;
84 };
85 
86 struct source_line {
87 	struct rb_node	node;
88 	char		*path;
89 	int		nr_pcnt;
90 	struct source_line_percent p[1];
91 };
92 
93 /** struct annotated_source - symbols with hits have this attached as in sannotation
94  *
95  * @histogram: Array of addr hit histograms per event being monitored
96  * @lines: If 'print_lines' is specified, per source code line percentages
97  * @source: source parsed from a disassembler like objdump -dS
98  *
99  * lines is allocated, percentages calculated and all sorted by percentage
100  * when the annotation is about to be presented, so the percentages are for
101  * one of the entries in the histogram array, i.e. for the event/counter being
102  * presented. It is deallocated right after symbol__{tui,tty,etc}_annotate
103  * returns.
104  */
105 struct annotated_source {
106 	struct list_head   source;
107 	struct source_line *lines;
108 	int    		   nr_histograms;
109 	int    		   sizeof_sym_hist;
110 	struct sym_hist	   histograms[0];
111 };
112 
113 struct annotation {
114 	pthread_mutex_t		lock;
115 	struct annotated_source *src;
116 };
117 
118 struct sannotation {
119 	struct annotation annotation;
120 	struct symbol	  symbol;
121 };
122 
123 static inline struct sym_hist *annotation__histogram(struct annotation *notes, int idx)
124 {
125 	return (((void *)&notes->src->histograms) +
126 	 	(notes->src->sizeof_sym_hist * idx));
127 }
128 
129 static inline struct annotation *symbol__annotation(struct symbol *sym)
130 {
131 	struct sannotation *a = container_of(sym, struct sannotation, symbol);
132 	return &a->annotation;
133 }
134 
135 int symbol__inc_addr_samples(struct symbol *sym, struct map *map,
136 			     int evidx, u64 addr);
137 int symbol__alloc_hist(struct symbol *sym);
138 void symbol__annotate_zero_histograms(struct symbol *sym);
139 
140 int symbol__annotate(struct symbol *sym, struct map *map, size_t privsize);
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 int symbol__tty_annotate(struct symbol *sym, struct map *map,
150 			 struct perf_evsel *evsel, bool print_lines,
151 			 bool full_paths, int min_pcnt, int max_lines);
152 
153 #ifdef HAVE_SLANG_SUPPORT
154 int symbol__tui_annotate(struct symbol *sym, struct map *map,
155 			 struct perf_evsel *evsel,
156 			 struct hist_browser_timer *hbt);
157 #else
158 static inline int symbol__tui_annotate(struct symbol *sym __maybe_unused,
159 				struct map *map __maybe_unused,
160 				struct perf_evsel *evsel  __maybe_unused,
161 				struct hist_browser_timer *hbt
162 				__maybe_unused)
163 {
164 	return 0;
165 }
166 #endif
167 
168 extern const char	*disassembler_style;
169 
170 #endif	/* __PERF_ANNOTATE_H */
171