linux/tools/perf/util/evsel_fprintf.c
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   1// SPDX-License-Identifier: GPL-2.0
   2#include <inttypes.h>
   3#include <stdio.h>
   4#include <stdbool.h>
   5#include <traceevent/event-parse.h>
   6#include "evsel.h"
   7#include "callchain.h"
   8#include "map.h"
   9#include "strlist.h"
  10#include "symbol.h"
  11#include "srcline.h"
  12
  13static int comma_fprintf(FILE *fp, bool *first, const char *fmt, ...)
  14{
  15        va_list args;
  16        int ret = 0;
  17
  18        if (!*first) {
  19                ret += fprintf(fp, ",");
  20        } else {
  21                ret += fprintf(fp, ":");
  22                *first = false;
  23        }
  24
  25        va_start(args, fmt);
  26        ret += vfprintf(fp, fmt, args);
  27        va_end(args);
  28        return ret;
  29}
  30
  31static int __print_attr__fprintf(FILE *fp, const char *name, const char *val, void *priv)
  32{
  33        return comma_fprintf(fp, (bool *)priv, " %s: %s", name, val);
  34}
  35
  36int perf_evsel__fprintf(struct perf_evsel *evsel,
  37                        struct perf_attr_details *details, FILE *fp)
  38{
  39        bool first = true;
  40        int printed = 0;
  41
  42        if (details->event_group) {
  43                struct perf_evsel *pos;
  44
  45                if (!perf_evsel__is_group_leader(evsel))
  46                        return 0;
  47
  48                if (evsel->nr_members > 1)
  49                        printed += fprintf(fp, "%s{", evsel->group_name ?: "");
  50
  51                printed += fprintf(fp, "%s", perf_evsel__name(evsel));
  52                for_each_group_member(pos, evsel)
  53                        printed += fprintf(fp, ",%s", perf_evsel__name(pos));
  54
  55                if (evsel->nr_members > 1)
  56                        printed += fprintf(fp, "}");
  57                goto out;
  58        }
  59
  60        printed += fprintf(fp, "%s", perf_evsel__name(evsel));
  61
  62        if (details->verbose) {
  63                printed += perf_event_attr__fprintf(fp, &evsel->attr,
  64                                                    __print_attr__fprintf, &first);
  65        } else if (details->freq) {
  66                const char *term = "sample_freq";
  67
  68                if (!evsel->attr.freq)
  69                        term = "sample_period";
  70
  71                printed += comma_fprintf(fp, &first, " %s=%" PRIu64,
  72                                         term, (u64)evsel->attr.sample_freq);
  73        }
  74
  75        if (details->trace_fields) {
  76                struct tep_format_field *field;
  77
  78                if (evsel->attr.type != PERF_TYPE_TRACEPOINT) {
  79                        printed += comma_fprintf(fp, &first, " (not a tracepoint)");
  80                        goto out;
  81                }
  82
  83                field = evsel->tp_format->format.fields;
  84                if (field == NULL) {
  85                        printed += comma_fprintf(fp, &first, " (no trace field)");
  86                        goto out;
  87                }
  88
  89                printed += comma_fprintf(fp, &first, " trace_fields: %s", field->name);
  90
  91                field = field->next;
  92                while (field) {
  93                        printed += comma_fprintf(fp, &first, "%s", field->name);
  94                        field = field->next;
  95                }
  96        }
  97out:
  98        fputc('\n', fp);
  99        return ++printed;
 100}
 101
 102int sample__fprintf_callchain(struct perf_sample *sample, int left_alignment,
 103                              unsigned int print_opts, struct callchain_cursor *cursor,
 104                              FILE *fp)
 105{
 106        int printed = 0;
 107        struct callchain_cursor_node *node;
 108        int print_ip = print_opts & EVSEL__PRINT_IP;
 109        int print_sym = print_opts & EVSEL__PRINT_SYM;
 110        int print_dso = print_opts & EVSEL__PRINT_DSO;
 111        int print_symoffset = print_opts & EVSEL__PRINT_SYMOFFSET;
 112        int print_oneline = print_opts & EVSEL__PRINT_ONELINE;
 113        int print_srcline = print_opts & EVSEL__PRINT_SRCLINE;
 114        int print_unknown_as_addr = print_opts & EVSEL__PRINT_UNKNOWN_AS_ADDR;
 115        int print_arrow = print_opts & EVSEL__PRINT_CALLCHAIN_ARROW;
 116        int print_skip_ignored = print_opts & EVSEL__PRINT_SKIP_IGNORED;
 117        char s = print_oneline ? ' ' : '\t';
 118        bool first = true;
 119
 120        if (sample->callchain) {
 121                struct addr_location node_al;
 122
 123                callchain_cursor_commit(cursor);
 124
 125                while (1) {
 126                        u64 addr = 0;
 127
 128                        node = callchain_cursor_current(cursor);
 129                        if (!node)
 130                                break;
 131
 132                        if (node->sym && node->sym->ignore && print_skip_ignored)
 133                                goto next;
 134
 135                        printed += fprintf(fp, "%-*.*s", left_alignment, left_alignment, " ");
 136
 137                        if (print_arrow && !first)
 138                                printed += fprintf(fp, " <-");
 139
 140                        if (print_ip)
 141                                printed += fprintf(fp, "%c%16" PRIx64, s, node->ip);
 142
 143                        if (node->map)
 144                                addr = node->map->map_ip(node->map, node->ip);
 145
 146                        if (print_sym) {
 147                                printed += fprintf(fp, " ");
 148                                node_al.addr = addr;
 149                                node_al.map  = node->map;
 150
 151                                if (print_symoffset) {
 152                                        printed += __symbol__fprintf_symname_offs(node->sym, &node_al,
 153                                                                                  print_unknown_as_addr,
 154                                                                                  true, fp);
 155                                } else {
 156                                        printed += __symbol__fprintf_symname(node->sym, &node_al,
 157                                                                             print_unknown_as_addr, fp);
 158                                }
 159                        }
 160
 161                        if (print_dso && (!node->sym || !node->sym->inlined)) {
 162                                printed += fprintf(fp, " (");
 163                                printed += map__fprintf_dsoname(node->map, fp);
 164                                printed += fprintf(fp, ")");
 165                        }
 166
 167                        if (print_srcline)
 168                                printed += map__fprintf_srcline(node->map, addr, "\n  ", fp);
 169
 170                        if (node->sym && node->sym->inlined)
 171                                printed += fprintf(fp, " (inlined)");
 172
 173                        if (!print_oneline)
 174                                printed += fprintf(fp, "\n");
 175
 176                        /* Add srccode here too? */
 177                        if (symbol_conf.bt_stop_list &&
 178                            node->sym &&
 179                            strlist__has_entry(symbol_conf.bt_stop_list,
 180                                               node->sym->name)) {
 181                                break;
 182                        }
 183
 184                        first = false;
 185next:
 186                        callchain_cursor_advance(cursor);
 187                }
 188        }
 189
 190        return printed;
 191}
 192
 193int sample__fprintf_sym(struct perf_sample *sample, struct addr_location *al,
 194                        int left_alignment, unsigned int print_opts,
 195                        struct callchain_cursor *cursor, FILE *fp)
 196{
 197        int printed = 0;
 198        int print_ip = print_opts & EVSEL__PRINT_IP;
 199        int print_sym = print_opts & EVSEL__PRINT_SYM;
 200        int print_dso = print_opts & EVSEL__PRINT_DSO;
 201        int print_symoffset = print_opts & EVSEL__PRINT_SYMOFFSET;
 202        int print_srcline = print_opts & EVSEL__PRINT_SRCLINE;
 203        int print_unknown_as_addr = print_opts & EVSEL__PRINT_UNKNOWN_AS_ADDR;
 204
 205        if (cursor != NULL) {
 206                printed += sample__fprintf_callchain(sample, left_alignment,
 207                                                     print_opts, cursor, fp);
 208        } else {
 209                printed += fprintf(fp, "%-*.*s", left_alignment, left_alignment, " ");
 210
 211                if (print_ip)
 212                        printed += fprintf(fp, "%16" PRIx64, sample->ip);
 213
 214                if (print_sym) {
 215                        printed += fprintf(fp, " ");
 216                        if (print_symoffset) {
 217                                printed += __symbol__fprintf_symname_offs(al->sym, al,
 218                                                                          print_unknown_as_addr,
 219                                                                          true, fp);
 220                        } else {
 221                                printed += __symbol__fprintf_symname(al->sym, al,
 222                                                                     print_unknown_as_addr, fp);
 223                        }
 224                }
 225
 226                if (print_dso) {
 227                        printed += fprintf(fp, " (");
 228                        printed += map__fprintf_dsoname(al->map, fp);
 229                        printed += fprintf(fp, ")");
 230                }
 231
 232                if (print_srcline)
 233                        printed += map__fprintf_srcline(al->map, al->addr, "\n  ", fp);
 234        }
 235
 236        return printed;
 237}
 238