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 "evsel.h"
   6 #include "util/evsel_fprintf.h"
   7 #include "util/event.h"
   8 #include "callchain.h"
   9 #include "map.h"
  10 #include "strlist.h"
  11 #include "symbol.h"
  12 #include "srcline.h"
  13 #include "dso.h"
  14
  15 #ifdef HAVE_LIBTRACEEVENT
  16 #include <traceevent/event-parse.h>
  17 #endif
  18
  19 static int comma_fprintf(FILE *fp, bool *first, const char *fmt, ...)
  20 {
  21         va_list args;
  22         int ret = 0;
  23
  24         if (!*first) {
  25                 ret += fprintf(fp, ",");
  26         } else {
  27                 ret += fprintf(fp, ":");
  28                 *first = false;
  29         }
  30
  31         va_start(args, fmt);
  32         ret += vfprintf(fp, fmt, args);
  33         va_end(args);
  34         return ret;
  35 }
  36
  37 static int __print_attr__fprintf(FILE *fp, const char *name, const char *val, void *priv)
  38 {
  39         return comma_fprintf(fp, (bool *)priv, " %s: %s", name, val);
  40 }
  41
  42 int evsel__fprintf(struct evsel *evsel, struct perf_attr_details *details, FILE *fp)
  43 {
  44         bool first = true;
  45         int printed = 0;
  46
  47         if (details->event_group) {
  48                 struct evsel *pos;
  49
  50                 if (!evsel__is_group_leader(evsel))
  51                         return 0;
  52
  53                 if (evsel->core.nr_members > 1)
  54                         printed += fprintf(fp, "%s{", evsel->group_name ?: "");
  55
  56                 printed += fprintf(fp, "%s", evsel__name(evsel));
  57                 for_each_group_member(pos, evsel)
  58                         printed += fprintf(fp, ",%s", evsel__name(pos));
  59
  60                 if (evsel->core.nr_members > 1)
  61                         printed += fprintf(fp, "}");
  62                 goto out;
  63         }
  64
  65         printed += fprintf(fp, "%s", evsel__name(evsel));
  66
  67         if (details->verbose) {
  68                 printed += perf_event_attr__fprintf(fp, &evsel->core.attr,
  69                                                     __print_attr__fprintf, &first);
  70         } else if (details->freq) {
  71                 const char *term = "sample_freq";
  72
  73                 if (!evsel->core.attr.freq)
  74                         term = "sample_period";
  75
  76                 printed += comma_fprintf(fp, &first, " %s=%" PRIu64,
  77                                          term, (u64)evsel->core.attr.sample_freq);
  78         }
  79
  80 #ifdef HAVE_LIBTRACEEVENT
  81         if (details->trace_fields) {
  82                 struct tep_format_field *field;
  83
  84                 if (evsel->core.attr.type != PERF_TYPE_TRACEPOINT) {
  85                         printed += comma_fprintf(fp, &first, " (not a tracepoint)");
  86                         goto out;
  87                 }
  88
  89                 field = evsel->tp_format->format.fields;
  90                 if (field == NULL) {
  91                         printed += comma_fprintf(fp, &first, " (no trace field)");
  92                         goto out;
  93                 }
  94
  95                 printed += comma_fprintf(fp, &first, " trace_fields: %s", field->name);
  96
  97                 field = field->next;
  98                 while (field) {
  99                         printed += comma_fprintf(fp, &first, "%s", field->name);
 100                         field = field->next;
 101                 }
 102         }
 103 #endif
 104 out:
 105         fputc('\n', fp);
 106         return ++printed;
 107 }
 108
 109 #ifndef PYTHON_PERF
 110 int sample__fprintf_callchain(struct perf_sample *sample, int left_alignment,
 111                               unsigned int print_opts, struct callchain_cursor *cursor,
 112                               struct strlist *bt_stop_list, FILE *fp)
 113 {
 114         int printed = 0;
 115         struct callchain_cursor_node *node;
 116         int print_ip = print_opts & EVSEL__PRINT_IP;
 117         int print_sym = print_opts & EVSEL__PRINT_SYM;
 118         int print_dso = print_opts & EVSEL__PRINT_DSO;
 119         int print_symoffset = print_opts & EVSEL__PRINT_SYMOFFSET;
 120         int print_oneline = print_opts & EVSEL__PRINT_ONELINE;
 121         int print_srcline = print_opts & EVSEL__PRINT_SRCLINE;
 122         int print_unknown_as_addr = print_opts & EVSEL__PRINT_UNKNOWN_AS_ADDR;
 123         int print_arrow = print_opts & EVSEL__PRINT_CALLCHAIN_ARROW;
 124         int print_skip_ignored = print_opts & EVSEL__PRINT_SKIP_IGNORED;
 125         char s = print_oneline ? ' ' : '\t';
 126         bool first = true;
 127
 128         if (sample->callchain) {
 129                 struct addr_location node_al;
 130
 131                 callchain_cursor_commit(cursor);
 132
 133                 while (1) {
 134                         struct symbol *sym;
 135                         struct map *map;
 136                         u64 addr = 0;
 137
 138                         node = callchain_cursor_current(cursor);
 139                         if (!node)
 140                                 break;
 141
 142                         sym = node->ms.sym;
 143                         map = node->ms.map;
 144
 145                         if (sym && sym->ignore && print_skip_ignored)
 146                                 goto next;
 147
 148                         printed += fprintf(fp, "%-*.*s", left_alignment, left_alignment, " ");
 149
 150                         if (print_arrow && !first)
 151                                 printed += fprintf(fp, " <-");
 152
 153                         if (map)
 154                                 addr = map__map_ip(map, node->ip);
 155
 156                         if (print_ip)
 157                                 printed += fprintf(fp, "%c%16" PRIx64, s, node->ip);
 158
 159                         if (print_sym) {
 160                                 printed += fprintf(fp, " ");
 161                                 node_al.addr = addr;
 162                                 node_al.map  = map;
 163
 164                                 if (print_symoffset) {
 165                                         printed += __symbol__fprintf_symname_offs(sym, &node_al,
 166                                                                                   print_unknown_as_addr,
 167                                                                                   true, fp);
 168                                 } else {
 169                                         printed += __symbol__fprintf_symname(sym, &node_al,
 170                                                                              print_unknown_as_addr, fp);
 171                                 }
 172                         }
 173
 174                         if (print_dso && (!sym || !sym->inlined)) {
 175                                 printed += fprintf(fp, " (");
 176                                 printed += map__fprintf_dsoname(map, fp);
 177                                 printed += fprintf(fp, ")");
 178                         }
 179
 180                         if (print_srcline)
 181                                 printed += map__fprintf_srcline(map, addr, "\n  ", fp);
 182
 183                         if (sym && sym->inlined)
 184                                 printed += fprintf(fp, " (inlined)");
 185
 186                         if (!print_oneline)
 187                                 printed += fprintf(fp, "\n");
 188
 189                         /* Add srccode here too? */
 190                         if (bt_stop_list && sym &&
 191                             strlist__has_entry(bt_stop_list, sym->name)) {
 192                                 break;
 193                         }
 194
 195                         first = false;
 196 next:
 197                         callchain_cursor_advance(cursor);
 198                 }
 199         }
 200
 201         return printed;
 202 }
 203
 204 int sample__fprintf_sym(struct perf_sample *sample, struct addr_location *al,
 205                         int left_alignment, unsigned int print_opts,
 206                         struct callchain_cursor *cursor, struct strlist *bt_stop_list, FILE *fp)
 207 {
 208         int printed = 0;
 209         int print_ip = print_opts & EVSEL__PRINT_IP;
 210         int print_sym = print_opts & EVSEL__PRINT_SYM;
 211         int print_dso = print_opts & EVSEL__PRINT_DSO;
 212         int print_symoffset = print_opts & EVSEL__PRINT_SYMOFFSET;
 213         int print_srcline = print_opts & EVSEL__PRINT_SRCLINE;
 214         int print_unknown_as_addr = print_opts & EVSEL__PRINT_UNKNOWN_AS_ADDR;
 215
 216         if (cursor != NULL) {
 217                 printed += sample__fprintf_callchain(sample, left_alignment, print_opts,
 218                                                      cursor, bt_stop_list, fp);
 219         } else {
 220                 printed += fprintf(fp, "%-*.*s", left_alignment, left_alignment, " ");
 221
 222                 if (print_ip)
 223                         printed += fprintf(fp, "%16" PRIx64, sample->ip);
 224
 225                 if (print_sym) {
 226                         printed += fprintf(fp, " ");
 227                         if (print_symoffset) {
 228                                 printed += __symbol__fprintf_symname_offs(al->sym, al,
 229                                                                           print_unknown_as_addr,
 230                                                                           true, fp);
 231                         } else {
 232                                 printed += __symbol__fprintf_symname(al->sym, al,
 233                                                                      print_unknown_as_addr, fp);
 234                         }
 235                 }
 236
 237                 if (print_dso) {
 238                         printed += fprintf(fp, " (");
 239                         printed += map__fprintf_dsoname(al->map, fp);
 240                         printed += fprintf(fp, ")");
 241                 }
 242
 243                 if (print_srcline)
 244                         printed += map__fprintf_srcline(al->map, al->addr, "\n  ", fp);
 245         }
 246
 247         return printed;
 248 }
 249 #endif /* PYTHON_PERF */