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         char s = print_oneline ? ' ' : '\t';
 112
 113         if (sample->callchain) {
 114                 struct addr_location node_al;
 115
 116                 callchain_cursor_commit(cursor);
 117
 118                 while (1) {
 119                         u64 addr = 0;
 120
 121                         node = callchain_cursor_current(cursor);
 122                         if (!node)
 123                                 break;
 124
 125                         printed += fprintf(fp, "%-*.*s", left_alignment, left_alignment, " ");
 126
 127                         if (print_ip)
 128                                 printed += fprintf(fp, "%c%16" PRIx64, s, node->ip);
 129
 130                         if (node->map)
 131                                 addr = node->map->map_ip(node->map, node->ip);
 132
 133                         if (print_sym) {
 134                                 printed += fprintf(fp, " ");
 135                                 node_al.addr = addr;
 136                                 node_al.map  = node->map;
 137
 138                                 if (print_symoffset) {
 139                                         printed += __symbol__fprintf_symname_offs(node->sym, &node_al,
 140                                                                                   print_unknown_as_addr, fp);
 141                                 } else {
 142                                         printed += __symbol__fprintf_symname(node->sym, &node_al,
 143                                                                              print_unknown_as_addr, fp);
 144                                 }
 145                         }
 146
 147                         if (print_dso) {
 148                                 printed += fprintf(fp, " (");
 149                                 printed += map__fprintf_dsoname(node->map, fp);
 150                                 printed += fprintf(fp, ")");
 151                         }
 152
 153                         if (print_srcline)
 154                                 printed += map__fprintf_srcline(node->map, addr, "\n  ", fp);
 155
 156                         if (!print_oneline)
 157                                 printed += fprintf(fp, "\n");
 158
 159                         callchain_cursor_advance(cursor);
 160                 }
 161         }
 162
 163         return printed;
 164 }
 165
 166 int sample__fprintf_sym(struct perf_sample *sample, struct addr_location *al,
 167                         int left_alignment, unsigned int print_opts,
 168                         struct callchain_cursor *cursor, FILE *fp)
 169 {
 170         int printed = 0;
 171         int print_ip = print_opts & EVSEL__PRINT_IP;
 172         int print_sym = print_opts & EVSEL__PRINT_SYM;
 173         int print_dso = print_opts & EVSEL__PRINT_DSO;
 174         int print_symoffset = print_opts & EVSEL__PRINT_SYMOFFSET;
 175         int print_srcline = print_opts & EVSEL__PRINT_SRCLINE;
 176         int print_unknown_as_addr = print_opts & EVSEL__PRINT_UNKNOWN_AS_ADDR;
 177
 178         if (cursor != NULL) {
 179                 printed += sample__fprintf_callchain(sample, left_alignment,
 180                                                      print_opts, cursor, fp);
 181         } else {
 182                 printed += fprintf(fp, "%-*.*s", left_alignment, left_alignment, " ");
 183
 184                 if (print_ip)
 185                         printed += fprintf(fp, "%16" PRIx64, sample->ip);
 186
 187                 if (print_sym) {
 188                         printed += fprintf(fp, " ");
 189                         if (print_symoffset) {
 190                                 printed += __symbol__fprintf_symname_offs(al->sym, al,
 191                                                                           print_unknown_as_addr, fp);
 192                         } else {
 193                                 printed += __symbol__fprintf_symname(al->sym, al,
 194                                                                      print_unknown_as_addr, fp);
 195                         }
 196                 }
 197
 198                 if (print_dso) {
 199                         printed += fprintf(fp, " (");
 200                         printed += map__fprintf_dsoname(al->map, fp);
 201                         printed += fprintf(fp, ")");
 202                 }
 203
 204                 if (print_srcline)
 205                         printed += map__fprintf_srcline(al->map, al->addr, "\n  ", fp);
 206         }
 207
 208         return printed;
 209 }