tools/perf/util/evsel_fprintf.c

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