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 "util/evlist.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 #include "dso.h"
  15
  16 #ifdef HAVE_LIBTRACEEVENT
  17 #include <traceevent/event-parse.h>
  18 #endif
  19
  20 static int comma_fprintf(FILE *fp, bool *first, const char *fmt, ...)
  21 {
  22         va_list args;
  23         int ret = 0;
  24
  25         if (!*first) {
  26                 ret += fprintf(fp, ",");
  27         } else {
  28                 ret += fprintf(fp, ":");
  29                 *first = false;
  30         }
  31
  32         va_start(args, fmt);
  33         ret += vfprintf(fp, fmt, args);
  34         va_end(args);
  35         return ret;
  36 }
  37
  38 static int __print_attr__fprintf(FILE *fp, const char *name, const char *val, void *priv)
  39 {
  40         return comma_fprintf(fp, (bool *)priv, " %s: %s", name, val);
  41 }
  42
  43 int evsel__fprintf(struct evsel *evsel, struct perf_attr_details *details, FILE *fp)
  44 {
  45         bool first = true;
  46         int printed = 0;
  47
  48         if (details->event_group) {
  49                 struct evsel *pos;
  50
  51                 if (!evsel__is_group_leader(evsel))
  52                         return 0;
  53
  54                 if (evsel->core.nr_members > 1)
  55                         printed += fprintf(fp, "%s{", evsel->group_name ?: "");
  56
  57                 printed += fprintf(fp, "%s", evsel__name(evsel));
  58                 for_each_group_member(pos, evsel)
  59                         printed += fprintf(fp, ",%s", evsel__name(pos));
  60
  61                 if (evsel->core.nr_members > 1)
  62                         printed += fprintf(fp, "}");
  63                 goto out;
  64         }
  65
  66         printed += fprintf(fp, "%s", evsel__name(evsel));
  67
  68         if (details->verbose) {
  69                 printed += perf_event_attr__fprintf(fp, &evsel->core.attr,
  70                                                     __print_attr__fprintf, &first);
  71         } else if (details->freq) {
  72                 const char *term = "sample_freq";
  73
  74                 if (!evsel->core.attr.freq)
  75                         term = "sample_period";
  76
  77                 printed += comma_fprintf(fp, &first, " %s=%" PRIu64,
  78                                          term, (u64)evsel->core.attr.sample_freq);
  79         }
  80
  81 #ifdef HAVE_LIBTRACEEVENT
  82         if (details->trace_fields) {
  83                 struct tep_format_field *field;
  84
  85                 if (evsel->core.attr.type != PERF_TYPE_TRACEPOINT) {
  86                         printed += comma_fprintf(fp, &first, " (not a tracepoint)");
  87                         goto out;
  88                 }
  89
  90                 field = evsel->tp_format->format.fields;
  91                 if (field == NULL) {
  92                         printed += comma_fprintf(fp, &first, " (no trace field)");
  93                         goto out;
  94                 }
  95
  96                 printed += comma_fprintf(fp, &first, " trace_fields: %s", field->name);
  97
  98                 field = field->next;
  99                 while (field) {
 100                         printed += comma_fprintf(fp, &first, "%s", field->name);
 101                         field = field->next;
 102                 }
 103         }
 104 #endif
 105 out:
 106         fputc('\n', fp);
 107         return ++printed;
 108 }
 109
 110 #ifndef PYTHON_PERF
 111 int sample__fprintf_callchain(struct perf_sample *sample, int left_alignment,
 112                               unsigned int print_opts, struct callchain_cursor *cursor,
 113                               struct strlist *bt_stop_list, FILE *fp)
 114 {
 115         int printed = 0;
 116         struct callchain_cursor_node *node;
 117         int print_ip = print_opts & EVSEL__PRINT_IP;
 118         int print_sym = print_opts & EVSEL__PRINT_SYM;
 119         int print_dso = print_opts & EVSEL__PRINT_DSO;
 120         int print_dsoff = print_opts & EVSEL__PRINT_DSOFF;
 121         int print_symoffset = print_opts & EVSEL__PRINT_SYMOFFSET;
 122         int print_oneline = print_opts & EVSEL__PRINT_ONELINE;
 123         int print_srcline = print_opts & EVSEL__PRINT_SRCLINE;
 124         int print_unknown_as_addr = print_opts & EVSEL__PRINT_UNKNOWN_AS_ADDR;
 125         int print_arrow = print_opts & EVSEL__PRINT_CALLCHAIN_ARROW;
 126         int print_skip_ignored = print_opts & EVSEL__PRINT_SKIP_IGNORED;
 127         char s = print_oneline ? ' ' : '\t';
 128         bool first = true;
 129
 130         if (cursor == NULL)
 131                 return fprintf(fp, "<not enough memory for the callchain cursor>%s", print_oneline ? "" : "\n");
 132
 133         if (sample->callchain) {
 134                 callchain_cursor_commit(cursor);
 135
 136                 while (1) {
 137                         struct symbol *sym;
 138                         struct map *map;
 139                         u64 addr = 0;
 140
 141                         node = callchain_cursor_current(cursor);
 142                         if (!node)
 143                                 break;
 144
 145                         sym = node->ms.sym;
 146                         map = node->ms.map;
 147
 148                         if (sym && sym->ignore && print_skip_ignored)
 149                                 goto next;
 150
 151                         printed += fprintf(fp, "%-*.*s", left_alignment, left_alignment, " ");
 152
 153                         if (print_arrow && !first)
 154                                 printed += fprintf(fp, " <-");
 155
 156                         if (map)
 157                                 addr = map__map_ip(map, node->ip);
 158
 159                         if (print_ip)
 160                                 printed += fprintf(fp, "%c%16" PRIx64, s, node->ip);
 161
 162                         if (print_sym) {
 163                                 struct addr_location node_al;
 164
 165                                 addr_location__init(&node_al);
 166                                 printed += fprintf(fp, " ");
 167                                 node_al.addr = addr;
 168                                 node_al.map  = map__get(map);
 169
 170                                 if (print_symoffset) {
 171                                         printed += __symbol__fprintf_symname_offs(sym, &node_al,
 172                                                                                   print_unknown_as_addr,
 173                                                                                   true, fp);
 174                                 } else {
 175                                         printed += __symbol__fprintf_symname(sym, &node_al,
 176                                                                              print_unknown_as_addr, fp);
 177                                 }
 178                                 addr_location__exit(&node_al);
 179                         }
 180
 181                         if (print_dso && (!sym || !sym->inlined))
 182                                 printed += map__fprintf_dsoname_dsoff(map, print_dsoff, addr, fp);
 183
 184                         if (print_srcline)
 185                                 printed += map__fprintf_srcline(map, addr, "\n  ", fp);
 186
 187                         if (sym && sym->inlined)
 188                                 printed += fprintf(fp, " (inlined)");
 189
 190                         if (!print_oneline)
 191                                 printed += fprintf(fp, "\n");
 192
 193                         /* Add srccode here too? */
 194                         if (bt_stop_list && sym &&
 195                             strlist__has_entry(bt_stop_list, sym->name)) {
 196                                 break;
 197                         }
 198
 199                         first = false;
 200 next:
 201                         callchain_cursor_advance(cursor);
 202                 }
 203         }
 204
 205         return printed;
 206 }
 207
 208 int sample__fprintf_sym(struct perf_sample *sample, struct addr_location *al,
 209                         int left_alignment, unsigned int print_opts,
 210                         struct callchain_cursor *cursor, struct strlist *bt_stop_list, FILE *fp)
 211 {
 212         int printed = 0;
 213         int print_ip = print_opts & EVSEL__PRINT_IP;
 214         int print_sym = print_opts & EVSEL__PRINT_SYM;
 215         int print_dso = print_opts & EVSEL__PRINT_DSO;
 216         int print_dsoff = print_opts & EVSEL__PRINT_DSOFF;
 217         int print_symoffset = print_opts & EVSEL__PRINT_SYMOFFSET;
 218         int print_srcline = print_opts & EVSEL__PRINT_SRCLINE;
 219         int print_unknown_as_addr = print_opts & EVSEL__PRINT_UNKNOWN_AS_ADDR;
 220
 221         if (cursor != NULL) {
 222                 printed += sample__fprintf_callchain(sample, left_alignment, print_opts,
 223                                                      cursor, bt_stop_list, fp);
 224         } else {
 225                 printed += fprintf(fp, "%-*.*s", left_alignment, left_alignment, " ");
 226
 227                 if (print_ip)
 228                         printed += fprintf(fp, "%16" PRIx64, sample->ip);
 229
 230                 if (print_sym) {
 231                         printed += fprintf(fp, " ");
 232                         if (print_symoffset) {
 233                                 printed += __symbol__fprintf_symname_offs(al->sym, al,
 234                                                                           print_unknown_as_addr,
 235                                                                           true, fp);
 236                         } else {
 237                                 printed += __symbol__fprintf_symname(al->sym, al,
 238                                                                      print_unknown_as_addr, fp);
 239                         }
 240                 }
 241
 242                 if (print_dso)
 243                         printed += map__fprintf_dsoname_dsoff(al->map, print_dsoff, al->addr, fp);
 244
 245                 if (print_srcline)
 246                         printed += map__fprintf_srcline(al->map, al->addr, "\n  ", fp);
 247         }
 248
 249         return printed;
 250 }
 251 #endif /* PYTHON_PERF */