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