tools/perf/util/annotate.h

   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         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 addr_map_symbol__inc_samples(struct addr_map_symbol *ams, int evidx);
 136
 137 int hist_entry__inc_addr_samples(struct hist_entry *he, int evidx, u64 addr);
 138
 139 int symbol__alloc_hist(struct symbol *sym);
 140 void symbol__annotate_zero_histograms(struct symbol *sym);
 141
 142 int symbol__annotate(struct symbol *sym, struct map *map, size_t privsize);
 143
 144 int hist_entry__annotate(struct hist_entry *he, size_t privsize);
 145
 146 int symbol__annotate_init(struct map *map __maybe_unused, struct symbol *sym);
 147 int symbol__annotate_printf(struct symbol *sym, struct map *map,
 148                             struct perf_evsel *evsel, bool full_paths,
 149                             int min_pcnt, int max_lines, int context);
 150 void symbol__annotate_zero_histogram(struct symbol *sym, int evidx);
 151 void symbol__annotate_decay_histogram(struct symbol *sym, int evidx);
 152 void disasm__purge(struct list_head *head);
 153
 154 bool ui__has_annotation(void);
 155
 156 int symbol__tty_annotate(struct symbol *sym, struct map *map,
 157                          struct perf_evsel *evsel, bool print_lines,
 158                          bool full_paths, int min_pcnt, int max_lines);
 159
 160 #ifdef HAVE_SLANG_SUPPORT
 161 int symbol__tui_annotate(struct symbol *sym, struct map *map,
 162                          struct perf_evsel *evsel,
 163                          struct hist_browser_timer *hbt);
 164 #else
 165 static inline int symbol__tui_annotate(struct symbol *sym __maybe_unused,
 166                                 struct map *map __maybe_unused,
 167                                 struct perf_evsel *evsel  __maybe_unused,
 168                                 struct hist_browser_timer *hbt
 169                                 __maybe_unused)
 170 {
 171         return 0;
 172 }
 173 #endif
 174
 175 extern const char       *disassembler_style;
 176
 177 #endif  /* __PERF_ANNOTATE_H */