tools/perf/util/evsel_fprintf.c

   1 // SPDX-License-Identifier: GPL-2.0
   2 #include <inttypes.h>
   3 #include <stdio.h>
   4 #include <stdbool.h>
   5 #include <traceevent/event-parse.h>
   6 #include "evsel.h"
   7 #include "util/evsel_fprintf.h"
   8 #include "util/event.h"
   9 #include "callchain.h"
  10 #include "map.h"
  11 #include "strlist.h"
  12 #include "symbol.h"
  13 #include "srcline.h"
  14
  15 static int comma_fprintf(FILE *fp, bool *first, const char *fmt, ...)
  16 {
  17         va_list args;
  18         int ret = 0;
  19
  20         if (!*first) {
  21                 ret += fprintf(fp, ",");
  22         } else {
  23                 ret += fprintf(fp, ":");
  24                 *first = false;
  25         }
  26
  27         va_start(args, fmt);
  28         ret += vfprintf(fp, fmt, args);
  29         va_end(args);
  30         return ret;
  31 }
  32
  33 static int __print_attr__fprintf(FILE *fp, const char *name, const char *val, void *priv)
  34 {
  35         return comma_fprintf(fp, (bool *)priv, " %s: %s", name, val);
  36 }
  37
  38 int evsel__fprintf(struct evsel *evsel, struct perf_attr_details *details, FILE *fp)
  39 {
  40         bool first = true;
  41         int printed = 0;
  42
  43         if (details->event_group) {
  44                 struct evsel *pos;
  45
  46                 if (!evsel__is_group_leader(evsel))
  47                         return 0;
  48
  49                 if (evsel->core.nr_members > 1)
  50                         printed += fprintf(fp, "%s{", evsel->group_name ?: "");
  51
  52                 printed += fprintf(fp, "%s", evsel__name(evsel));
  53                 for_each_group_member(pos, evsel)
  54                         printed += fprintf(fp, ",%s", evsel__name(pos));
  55
  56                 if (evsel->core.nr_members > 1)
  57                         printed += fprintf(fp, "}");
  58                 goto out;
  59         }
  60
  61         printed += fprintf(fp, "%s", evsel__name(evsel));
  62
  63         if (details->verbose) {
  64                 printed += perf_event_attr__fprintf(fp, &evsel->core.attr,
  65                                                     __print_attr__fprintf, &first);
  66         } else if (details->freq) {
  67                 const char *term = "sample_freq";
  68
  69                 if (!evsel->core.attr.freq)
  70                         term = "sample_period";
  71
  72                 printed += comma_fprintf(fp, &first, " %s=%" PRIu64,
  73                                          term, (u64)evsel->core.attr.sample_freq);
  74         }
  75
  76         if (details->trace_fields) {
  77                 struct tep_format_field *field;
  78
  79                 if (evsel->core.attr.type != PERF_TYPE_TRACEPOINT) {
  80                         printed += comma_fprintf(fp, &first, " (not a tracepoint)");
  81                         goto out;
  82                 }
  83
  84                 field = evsel->tp_format->format.fields;
  85                 if (field == NULL) {
  86                         printed += comma_fprintf(fp, &first, " (no trace field)");
  87                         goto out;
  88                 }
  89
  90                 printed += comma_fprintf(fp, &first, " trace_fields: %s", field->name);
  91
  92                 field = field->next;
  93                 while (field) {
  94                         printed += comma_fprintf(fp, &first, "%s", field->name);
  95                         field = field->next;
  96                 }
  97         }
  98 out:
  99         fputc('\n', fp);
 100         return ++printed;
 101 }
 102
 103 int sample__fprintf_callchain(struct perf_sample *sample, int left_alignment,
 104                               unsigned int print_opts, struct callchain_cursor *cursor,
 105                               struct strlist *bt_stop_list, FILE *fp)
 106 {
 107         int printed = 0;
 108         struct callchain_cursor_node *node;
 109         int print_ip = print_opts & EVSEL__PRINT_IP;
 110         int print_sym = print_opts & EVSEL__PRINT_SYM;
 111         int print_dso = print_opts & EVSEL__PRINT_DSO;
 112         int print_symoffset = print_opts & EVSEL__PRINT_SYMOFFSET;
 113         int print_oneline = print_opts & EVSEL__PRINT_ONELINE;
 114         int print_srcline = print_opts & EVSEL__PRINT_SRCLINE;
 115         int print_unknown_as_addr = print_opts & EVSEL__PRINT_UNKNOWN_AS_ADDR;
 116         int print_arrow = print_opts & EVSEL__PRINT_CALLCHAIN_ARROW;
 117         int print_skip_ignored = print_opts & EVSEL__PRINT_SKIP_IGNORED;
 118         char s = print_oneline ? ' ' : '\t';
 119         bool first = true;
 120
 121         if (sample->callchain) {
 122                 struct addr_location node_al;
 123
 124                 callchain_cursor_commit(cursor);
 125
 126                 while (1) {
 127                         struct symbol *sym;
 128                         struct map *map;
 129                         u64 addr = 0;
 130
 131                         node = callchain_cursor_current(cursor);
 132                         if (!node)
 133                                 break;
 134
 135                         sym = node->ms.sym;
 136                         map = node->ms.map;
 137
 138                         if (sym && sym->ignore && print_skip_ignored)
 139                                 goto next;
 140
 141                         printed += fprintf(fp, "%-*.*s", left_alignment, left_alignment, " ");
 142
 143                         if (print_arrow && !first)
 144                                 printed += fprintf(fp, " <-");
 145
 146                         if (print_ip)
 147                                 printed += fprintf(fp, "%c%16" PRIx64, s, node->ip);
 148
 149                         if (map)
 150                                 addr = map->map_ip(map, node->ip);
 151
 152                         if (print_sym) {
 153                                 printed += fprintf(fp, " ");
 154                                 node_al.addr = addr;
 155                                 node_al.map  = map;
 156
 157                                 if (print_symoffset) {
 158                                         printed += __symbol__fprintf_symname_offs(sym, &node_al,
 159                                                                                   print_unknown_as_addr,
 160                                                                                   true, fp);
 161                                 } else {
 162                                         printed += __symbol__fprintf_symname(sym, &node_al,
 163                                                                              print_unknown_as_addr, fp);
 164                                 }
 165                         }
 166
 167                         if (print_dso && (!sym || !sym->inlined)) {
 168                                 printed += fprintf(fp, " (");
 169                                 printed += map__fprintf_dsoname(map, fp);
 170                                 printed += fprintf(fp, ")");
 171                         }
 172
 173                         if (print_srcline)
 174                                 printed += map__fprintf_srcline(map, addr, "\n  ", fp);
 175
 176                         if (sym && sym->inlined)
 177                                 printed += fprintf(fp, " (inlined)");
 178
 179                         if (!print_oneline)
 180                                 printed += fprintf(fp, "\n");
 181
 182                         /* Add srccode here too? */
 183                         if (bt_stop_list && sym &&
 184                             strlist__has_entry(bt_stop_list, sym->name)) {
 185                                 break;
 186                         }
 187
 188                         first = false;
 189 next:
 190                         callchain_cursor_advance(cursor);
 191                 }
 192         }
 193
 194         return printed;
 195 }
 196
 197 int sample__fprintf_sym(struct perf_sample *sample, struct addr_location *al,
 198                         int left_alignment, unsigned int print_opts,
 199                         struct callchain_cursor *cursor, struct strlist *bt_stop_list, FILE *fp)
 200 {
 201         int printed = 0;
 202         int print_ip = print_opts & EVSEL__PRINT_IP;
 203         int print_sym = print_opts & EVSEL__PRINT_SYM;
 204         int print_dso = print_opts & EVSEL__PRINT_DSO;
 205         int print_symoffset = print_opts & EVSEL__PRINT_SYMOFFSET;
 206         int print_srcline = print_opts & EVSEL__PRINT_SRCLINE;
 207         int print_unknown_as_addr = print_opts & EVSEL__PRINT_UNKNOWN_AS_ADDR;
 208
 209         if (cursor != NULL) {
 210                 printed += sample__fprintf_callchain(sample, left_alignment, print_opts,
 211                                                      cursor, bt_stop_list, fp);
 212         } else {
 213                 printed += fprintf(fp, "%-*.*s", left_alignment, left_alignment, " ");
 214
 215                 if (print_ip)
 216                         printed += fprintf(fp, "%16" PRIx64, sample->ip);
 217
 218                 if (print_sym) {
 219                         printed += fprintf(fp, " ");
 220                         if (print_symoffset) {
 221                                 printed += __symbol__fprintf_symname_offs(al->sym, al,
 222                                                                           print_unknown_as_addr,
 223                                                                           true, fp);
 224                         } else {
 225                                 printed += __symbol__fprintf_symname(al->sym, al,
 226                                                                      print_unknown_as_addr, fp);
 227                         }
 228                 }
 229
 230                 if (print_dso) {
 231                         printed += fprintf(fp, " (");
 232                         printed += map__fprintf_dsoname(al->map, fp);
 233                         printed += fprintf(fp, ")");
 234                 }
 235
 236                 if (print_srcline)
 237                         printed += map__fprintf_srcline(al->map, al->addr, "\n  ", fp);
 238         }
 239
 240         return printed;
 241 }