tools/perf/util/evsel_fprintf.c

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