converter/babeltrace.c

   1 /*
   2  * babeltrace.c
   3  *
   4  * Babeltrace Trace Converter
   5  *
   6  * Copyright 2010-2011 EfficiOS Inc. and Linux Foundation
   7  *
   8  * Author: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
   9  *
  10  * Permission is hereby granted, free of charge, to any person obtaining a copy
  11  * of this software and associated documentation files (the "Software"), to deal
  12  * in the Software without restriction, including without limitation the rights
  13  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
  14  * copies of the Software, and to permit persons to whom the Software is
  15  * furnished to do so, subject to the following conditions:
  16  *
  17  * The above copyright notice and this permission notice shall be included in
  18  * all copies or substantial portions of the Software.
  19  */
  20
  21 #define _GNU_SOURCE
  22 #include <config.h>
  23 #include <babeltrace/babeltrace.h>
  24 #include <babeltrace/format.h>
  25 #include <babeltrace/context.h>
  26 #include <babeltrace/ctf/types.h>
  27 #include <babeltrace/ctf/events.h>
  28 /* TODO: fix object model for format-agnostic callbacks */
  29 #include <babeltrace/ctf/events-internal.h>
  30 #include <babeltrace/ctf/iterator.h>
  31 #include <babeltrace/ctf-text/types.h>
  32 #include <babeltrace/iterator.h>
  33 #include <popt.h>
  34 #include <errno.h>
  35 #include <stdlib.h>
  36 #include <ctype.h>
  37 #include <sys/stat.h>
  38 #include <sys/types.h>
  39 #include <fcntl.h>
  40 #include <unistd.h>
  41 #include <inttypes.h>
  42 #include <ftw.h>
  43 #include <string.h>
  44
  45 #include <babeltrace/ctf-ir/metadata.h> /* for clocks */
  46
  47 #define PARTIAL_ERROR_SLEEP     3       /* 3 seconds */
  48
  49 #define DEFAULT_FILE_ARRAY_SIZE 1
  50 static char *opt_input_format, *opt_output_format;
  51 /* Pointer into const argv */
  52 static const char *opt_input_format_arg, *opt_output_format_arg;
  53
  54 static GPtrArray *opt_input_paths;
  55 static const char *opt_output_path;
  56
  57 static struct format *fmt_read;
  58
  59 static
  60 void strlower(char *str)
  61 {
  62         while (*str) {
  63                 *str = tolower((int) *str);
  64                 str++;
  65         }
  66 }
  67
  68 enum {
  69         OPT_NONE = 0,
  70         OPT_HELP,
  71         OPT_LIST,
  72         OPT_VERBOSE,
  73         OPT_DEBUG,
  74         OPT_NAMES,
  75         OPT_FIELDS,
  76         OPT_NO_DELTA,
  77         OPT_CLOCK_OFFSET,
  78         OPT_CLOCK_CYCLES,
  79         OPT_CLOCK_SECONDS,
  80         OPT_CLOCK_DATE,
  81         OPT_CLOCK_GMT,
  82         OPT_CLOCK_FORCE_CORRELATE,
  83 };
  84
  85 static struct poptOption long_options[] = {
  86         /* longName, shortName, argInfo, argPtr, value, descrip, argDesc */
  87         { "output", 'w', POPT_ARG_STRING, &opt_output_path, OPT_NONE, NULL, NULL },
  88         { "input-format", 'i', POPT_ARG_STRING, &opt_input_format_arg, OPT_NONE, NULL, NULL },
  89         { "output-format", 'o', POPT_ARG_STRING, &opt_output_format_arg, OPT_NONE, NULL, NULL },
  90         { "help", 'h', POPT_ARG_NONE, NULL, OPT_HELP, NULL, NULL },
  91         { "list", 'l', POPT_ARG_NONE, NULL, OPT_LIST, NULL, NULL },
  92         { "verbose", 'v', POPT_ARG_NONE, NULL, OPT_VERBOSE, NULL, NULL },
  93         { "debug", 'd', POPT_ARG_NONE, NULL, OPT_DEBUG, NULL, NULL },
  94         { "names", 'n', POPT_ARG_STRING, NULL, OPT_NAMES, NULL, NULL },
  95         { "fields", 'f', POPT_ARG_STRING, NULL, OPT_FIELDS, NULL, NULL },
  96         { "no-delta", 0, POPT_ARG_NONE, NULL, OPT_NO_DELTA, NULL, NULL },
  97         { "clock-offset", 0, POPT_ARG_STRING, NULL, OPT_CLOCK_OFFSET, NULL, NULL },
  98         { "clock-cycles", 0, POPT_ARG_NONE, NULL, OPT_CLOCK_CYCLES, NULL, NULL },
  99         { "clock-seconds", 0, POPT_ARG_NONE, NULL, OPT_CLOCK_SECONDS, NULL, NULL },
 100         { "clock-date", 0, POPT_ARG_NONE, NULL, OPT_CLOCK_DATE, NULL, NULL },
 101         { "clock-gmt", 0, POPT_ARG_NONE, NULL, OPT_CLOCK_GMT, NULL, NULL },
 102         { "clock-force-correlate", 0, POPT_ARG_NONE, NULL, OPT_CLOCK_FORCE_CORRELATE, NULL, NULL },
 103         { NULL, 0, 0, NULL, 0, NULL, NULL },
 104 };
 105
 106 static void list_formats(FILE *fp)
 107 {
 108         fprintf(fp, "\n");
 109         bt_fprintf_format_list(fp);
 110 }
 111
 112 static void usage(FILE *fp)
 113 {
 114         fprintf(fp, "BabelTrace Trace Viewer and Converter %s\n\n", VERSION);
 115         fprintf(fp, "usage : babeltrace [OPTIONS] FILE...\n");
 116         fprintf(fp, "\n");
 117         fprintf(fp, "  FILE                           Input trace file(s) and/or directory(ies)\n");
 118         fprintf(fp, "                                     (space-separated)\n");
 119         fprintf(fp, "  -w, --output OUTPUT            Output trace path (default: stdout)\n");
 120         fprintf(fp, "\n");
 121         fprintf(fp, "  -i, --input-format FORMAT      Input trace format (default: ctf)\n");
 122         fprintf(fp, "  -o, --output-format FORMAT     Output trace format (default: text)\n");
 123         fprintf(fp, "\n");
 124         fprintf(fp, "  -h, --help                     This help message\n");
 125         fprintf(fp, "  -l, --list                     List available formats\n");
 126         fprintf(fp, "  -v, --verbose                  Verbose mode\n");
 127         fprintf(fp, "                                 (or set BABELTRACE_VERBOSE environment variable)\n");
 128         fprintf(fp, "  -d, --debug                    Debug mode\n");
 129         fprintf(fp, "                                 (or set BABELTRACE_DEBUG environment variable)\n");
 130         fprintf(fp, "      --no-delta                 Do not print time delta between consecutive events\n");
 131         fprintf(fp, "  -n, --names name1<,name2,...>  Print field names:\n");
 132         fprintf(fp, "                                     (payload OR args OR arg)\n");
 133         fprintf(fp, "                                     none, all, scope, header, (context OR ctx)\n");
 134         fprintf(fp, "                                        (default: payload,context)\n");
 135         fprintf(fp, "  -f, --fields name1<,name2,...> Print additional fields:\n");
 136         fprintf(fp, "                                     all, trace, trace:domain, trace:procname,\n");
 137         fprintf(fp, "                                     trace:vpid, loglevel.\n");
 138         fprintf(fp, "      --clock-cycles             Timestamp in cycles\n");
 139         fprintf(fp, "      --clock-offset seconds     Clock offset in seconds\n");
 140         fprintf(fp, "      --clock-seconds            Print the timestamps as [sec.ns]\n");
 141         fprintf(fp, "                                 (default is: [hh:mm:ss.ns])\n");
 142         fprintf(fp, "      --clock-date               Print clock date\n");
 143         fprintf(fp, "      --clock-gmt                Print clock in GMT time zone (default: local time zone)\n");
 144         fprintf(fp, "      --clock-force-correlate    Assume that clocks are inherently correlated\n");
 145         fprintf(fp, "                                 across traces.\n");
 146         list_formats(fp);
 147         fprintf(fp, "\n");
 148 }
 149
 150 static int get_names_args(poptContext *pc)
 151 {
 152         char *str, *strlist, *strctx;
 153
 154         opt_payload_field_names = 0;
 155         opt_context_field_names = 0;
 156         strlist = (char *) poptGetOptArg(*pc);
 157         if (!strlist) {
 158                 return -EINVAL;
 159         }
 160         str = strtok_r(strlist, ",", &strctx);
 161         do {
 162                 if (!strcmp(str, "all"))
 163                         opt_all_field_names = 1;
 164                 else if (!strcmp(str, "scope"))
 165                         opt_scope_field_names = 1;
 166                 else if (!strcmp(str, "context") || !strcmp(str, "ctx"))
 167                         opt_context_field_names = 1;
 168                 else if (!strcmp(str, "header"))
 169                         opt_header_field_names = 1;
 170                 else if (!strcmp(str, "payload") || !strcmp(str, "args") || !strcmp(str, "arg"))
 171                         opt_payload_field_names = 1;
 172                 else if (!strcmp(str, "none")) {
 173                         opt_all_field_names = 0;
 174                         opt_scope_field_names = 0;
 175                         opt_context_field_names = 0;
 176                         opt_header_field_names = 0;
 177                         opt_payload_field_names = 0;
 178                 } else {
 179                         fprintf(stderr, "[error] unknown field name type %s\n", str);
 180                         return -EINVAL;
 181                 }
 182         } while ((str = strtok_r(NULL, ",", &strctx)));
 183         return 0;
 184 }
 185
 186 static int get_fields_args(poptContext *pc)
 187 {
 188         char *str, *strlist, *strctx;
 189
 190         strlist = (char *) poptGetOptArg(*pc);
 191         if (!strlist) {
 192                 return -EINVAL;
 193         }
 194         str = strtok_r(strlist, ",", &strctx);
 195         do {
 196                 if (!strcmp(str, "all"))
 197                         opt_all_fields = 1;
 198                 else if (!strcmp(str, "trace"))
 199                         opt_trace_field = 1;
 200                 else if (!strcmp(str, "trace:domain"))
 201                         opt_trace_domain_field = 1;
 202                 else if (!strcmp(str, "trace:procname"))
 203                         opt_trace_procname_field = 1;
 204                 else if (!strcmp(str, "trace:vpid"))
 205                         opt_trace_vpid_field = 1;
 206                 else if (!strcmp(str, "loglevel"))
 207                         opt_loglevel_field = 1;
 208                 else {
 209                         fprintf(stderr, "[error] unknown field type %s\n", str);
 210                         return -EINVAL;
 211                 }
 212         } while ((str = strtok_r(NULL, ",", &strctx)));
 213         return 0;
 214 }
 215
 216 /*
 217  * Return 0 if caller should continue, < 0 if caller should return
 218  * error, > 0 if caller should exit without reporting error.
 219  */
 220 static int parse_options(int argc, char **argv)
 221 {
 222         poptContext pc;
 223         int opt, ret = 0;
 224         const char *ipath;
 225
 226         if (argc == 1) {
 227                 usage(stdout);
 228                 return 1;       /* exit cleanly */
 229         }
 230
 231         pc = poptGetContext(NULL, argc, (const char **) argv, long_options, 0);
 232         poptReadDefaultConfig(pc, 0);
 233
 234         /* set default */
 235         opt_context_field_names = 1;
 236         opt_payload_field_names = 1;
 237
 238         while ((opt = poptGetNextOpt(pc)) != -1) {
 239                 switch (opt) {
 240                 case OPT_HELP:
 241                         usage(stdout);
 242                         ret = 1;        /* exit cleanly */
 243                         goto end;
 244                 case OPT_LIST:
 245                         list_formats(stdout);
 246                         ret = 1;
 247                         goto end;
 248                 case OPT_VERBOSE:
 249                         babeltrace_verbose = 1;
 250                         break;
 251                 case OPT_NAMES:
 252                         if (get_names_args(&pc)) {
 253                                 ret = -EINVAL;
 254                                 goto end;
 255                         }
 256                         break;
 257                 case OPT_FIELDS:
 258                         if (get_fields_args(&pc)) {
 259                                 ret = -EINVAL;
 260                                 goto end;
 261                         }
 262                         break;
 263                 case OPT_DEBUG:
 264                         babeltrace_debug = 1;
 265                         break;
 266                 case OPT_NO_DELTA:
 267                         opt_delta_field = 0;
 268                         break;
 269                 case OPT_CLOCK_CYCLES:
 270                         opt_clock_cycles = 1;
 271                         break;
 272                 case OPT_CLOCK_OFFSET:
 273                 {
 274                         const char *str;
 275                         char *endptr;
 276
 277                         str = poptGetOptArg(pc);
 278                         if (!str) {
 279                                 fprintf(stderr, "[error] Missing --clock-offset argument\n");
 280                                 ret = -EINVAL;
 281                                 goto end;
 282                         }
 283                         errno = 0;
 284                         opt_clock_offset = strtoull(str, &endptr, 0);
 285                         if (*endptr != '\0' || str == endptr || errno != 0) {
 286                                 fprintf(stderr, "[error] Incorrect --clock-offset argument: %s\n", str);
 287                                 ret = -EINVAL;
 288                                 goto end;
 289                         }
 290                         break;
 291                 }
 292                 case OPT_CLOCK_SECONDS:
 293                         opt_clock_seconds = 1;
 294                         break;
 295                 case OPT_CLOCK_DATE:
 296                         opt_clock_date = 1;
 297                         break;
 298                 case OPT_CLOCK_GMT:
 299                         opt_clock_gmt = 1;
 300                         break;
 301                 case OPT_CLOCK_FORCE_CORRELATE:
 302                         opt_clock_force_correlate = 1;
 303                         break;
 304
 305                 default:
 306                         ret = -EINVAL;
 307                         goto end;
 308                 }
 309         }
 310
 311         do {
 312                 ipath = poptGetArg(pc);
 313                 if (ipath)
 314                         g_ptr_array_add(opt_input_paths, (gpointer) ipath);
 315         } while (ipath);
 316         if (opt_input_paths->len == 0) {
 317                 ret = -EINVAL;
 318                 goto end;
 319         }
 320
 321 end:
 322         if (pc) {
 323                 poptFreeContext(pc);
 324         }
 325         return ret;
 326 }
 327
 328 static GPtrArray *traversed_paths = 0;
 329
 330 /*
 331  * traverse_trace_dir() is the callback function for File Tree Walk (nftw).
 332  * it receives the path of the current entry (file, dir, link..etc) with
 333  * a flag to indicate the type of the entry.
 334  * if the entry being visited is a directory and contains a metadata file,
 335  * then add the path to a global list to be processed later in
 336  * add_traces_recursive.
 337  */
 338 static int traverse_trace_dir(const char *fpath, const struct stat *sb,
 339                         int tflag, struct FTW *ftwbuf)
 340 {
 341         int dirfd, metafd;
 342         int closeret;
 343
 344         if (tflag != FTW_D)
 345                 return 0;
 346
 347         dirfd = open(fpath, 0);
 348         if (dirfd < 0) {
 349                 fprintf(stderr, "[error] [Context] Unable to open trace "
 350                         "directory file descriptor.\n");
 351                 return 0;       /* partial error */
 352         }
 353         metafd = openat(dirfd, "metadata", O_RDONLY);
 354         if (metafd < 0) {
 355                 closeret = close(dirfd);
 356                 if (closeret < 0) {
 357                         perror("close");
 358                         return -1;
 359                 }
 360                 /* No meta data, just return */
 361                 return 0;
 362         } else {
 363                 closeret = close(metafd);
 364                 if (closeret < 0) {
 365                         perror("close");
 366                         return -1;      /* failure */
 367                 }
 368                 closeret = close(dirfd);
 369                 if (closeret < 0) {
 370                         perror("close");
 371                         return -1;      /* failure */
 372                 }
 373
 374                 /* Add path to the global list */
 375                 if (traversed_paths == NULL) {
 376                         fprintf(stderr, "[error] [Context] Invalid open path array.\n");
 377                         return -1;
 378                 }
 379                 g_ptr_array_add(traversed_paths, g_string_new(fpath));
 380         }
 381
 382         return 0;
 383 }
 384 /*
 385  * bt_context_add_traces_recursive: Open a trace recursively
 386  *
 387  * Find each trace present in the subdirectory starting from the given
 388  * path, and add them to the context. The packet_seek parameter can be
 389  * NULL: this specify to use the default format packet_seek.
 390  *
 391  * Return: 0 on success, < 0 on failure, > 0 on partial failure.
 392  * Unable to open toplevel: failure.
 393  * Unable to open some subdirectory or file: warn and continue (partial
 394  * failure);
 395  */
 396 int bt_context_add_traces_recursive(struct bt_context *ctx, const char *path,
 397                 const char *format_str,
 398                 void (*packet_seek)(struct stream_pos *pos,
 399                         size_t offset, int whence))
 400 {
 401
 402         GArray *trace_ids;
 403         int ret = 0;
 404         int i;
 405
 406         /* Should lock traversed_paths mutex here if used in multithread */
 407
 408         traversed_paths = g_ptr_array_new();
 409         trace_ids = g_array_new(FALSE, TRUE, sizeof(int));
 410
 411         ret = nftw(path, traverse_trace_dir, 10, 0);
 412
 413         /* Process the array if ntfw did not return a fatal error */
 414         if (ret >= 0) {
 415                 for (i = 0; i < traversed_paths->len; i++) {
 416                         GString *trace_path = g_ptr_array_index(traversed_paths,
 417                                                                 i);
 418                         int trace_id = bt_context_add_trace(ctx,
 419                                                             trace_path->str,
 420                                                             format_str,
 421                                                             packet_seek,
 422                                                             NULL,
 423                                                             NULL);
 424                         if (trace_id < 0) {
 425                                 fprintf(stderr, "[warning] [Context] cannot open trace \"%s\" from %s "
 426                                         "for reading.\n", trace_path->str, path);
 427                                 /* Allow to skip erroneous traces. */
 428                                 ret = 1;        /* partial error */
 429                         } else {
 430                                 g_array_append_val(trace_ids, trace_id);
 431                         }
 432                         g_string_free(trace_path, TRUE);
 433                 }
 434         }
 435         g_ptr_array_free(traversed_paths, TRUE);
 436         traversed_paths = NULL;
 437
 438         /* Should unlock traversed paths mutex here if used in multithread */
 439
 440         /*
 441          * Return an error if no trace can be opened.
 442          */
 443         if (trace_ids->len == 0) {
 444                 fprintf(stderr, "[error] Cannot open any trace for reading.\n\n");
 445                 ret = -ENOENT;          /* failure */
 446         }
 447         g_array_free(trace_ids, TRUE);
 448         return ret;
 449 }
 450
 451 int convert_trace(struct trace_descriptor *td_write,
 452                   struct bt_context *ctx)
 453 {
 454         struct bt_ctf_iter *iter;
 455         struct ctf_text_stream_pos *sout;
 456         struct bt_iter_pos begin_pos;
 457         struct bt_ctf_event *ctf_event;
 458         int ret;
 459
 460         sout = container_of(td_write, struct ctf_text_stream_pos,
 461                         trace_descriptor);
 462
 463         begin_pos.type = BT_SEEK_BEGIN;
 464         iter = bt_ctf_iter_create(ctx, &begin_pos, NULL);
 465         if (!iter) {
 466                 ret = -1;
 467                 goto error_iter;
 468         }
 469         while ((ctf_event = bt_ctf_iter_read_event(iter))) {
 470                 ret = sout->parent.event_cb(&sout->parent, ctf_event->parent->stream);
 471                 if (ret) {
 472                         fprintf(stderr, "[error] Writing event failed.\n");
 473                         goto end;
 474                 }
 475                 ret = bt_iter_next(bt_ctf_get_iter(iter));
 476                 if (ret < 0)
 477                         goto end;
 478         }
 479         ret = 0;
 480
 481 end:
 482         bt_ctf_iter_destroy(iter);
 483 error_iter:
 484         return ret;
 485 }
 486
 487 int main(int argc, char **argv)
 488 {
 489         int ret, partial_error = 0, open_success = 0;
 490         struct format *fmt_write;
 491         struct trace_descriptor *td_write;
 492         struct bt_context *ctx;
 493         int i;
 494
 495         opt_input_paths = g_ptr_array_new();
 496
 497         ret = parse_options(argc, argv);
 498         if (ret < 0) {
 499                 fprintf(stderr, "Error parsing options.\n\n");
 500                 usage(stderr);
 501                 g_ptr_array_free(opt_input_paths, TRUE);
 502                 exit(EXIT_FAILURE);
 503         } else if (ret > 0) {
 504                 g_ptr_array_free(opt_input_paths, TRUE);
 505                 exit(EXIT_SUCCESS);
 506         }
 507         printf_verbose("Verbose mode active.\n");
 508         printf_debug("Debug mode active.\n");
 509
 510         if (opt_input_format_arg) {
 511                 opt_input_format = strdup(opt_input_format_arg);
 512                 if (!opt_input_format) {
 513                         partial_error = 1;
 514                         goto end;
 515                 }
 516                 strlower(opt_input_format);
 517         }
 518         if (opt_output_format_arg) {
 519                 opt_output_format = strdup(opt_output_format_arg);
 520                 if (!opt_output_format) {
 521                         partial_error = 1;
 522                         goto end;
 523                 }
 524                 strlower(opt_output_format);
 525         }
 526
 527         printf_verbose("Converting from directory(ies):\n");
 528         for (i = 0; i < opt_input_paths->len; i++) {
 529                 const char *ipath = g_ptr_array_index(opt_input_paths, i);
 530                 printf_verbose("    %s\n", ipath);
 531         }
 532         printf_verbose("Converting from format: %s\n",
 533                 opt_input_format ? : "ctf <default>");
 534         printf_verbose("Converting to directory: %s\n",
 535                 opt_output_path ? : "<stdout>");
 536         printf_verbose("Converting to format: %s\n",
 537                 opt_output_format ? : "text <default>");
 538
 539         if (!opt_input_format) {
 540                 opt_input_format = strdup("ctf");
 541                 if (!opt_input_format) {
 542                         partial_error = 1;
 543                         goto end;
 544                 }
 545         }
 546         if (!opt_output_format) {
 547                 opt_output_format = strdup("text");
 548                 if (!opt_output_format) {
 549                         partial_error = 1;
 550                         goto end;
 551                 }
 552         }
 553         fmt_read = bt_lookup_format(g_quark_from_static_string(opt_input_format));
 554         if (!fmt_read) {
 555                 fprintf(stderr, "[error] Format \"%s\" is not supported.\n\n",
 556                         opt_input_format);
 557                 partial_error = 1;
 558                 goto end;
 559         }
 560         fmt_write = bt_lookup_format(g_quark_from_static_string(opt_output_format));
 561         if (!fmt_write) {
 562                 fprintf(stderr, "[error] format \"%s\" is not supported.\n\n",
 563                         opt_output_format);
 564                 partial_error = 1;
 565                 goto end;
 566         }
 567
 568         ctx = bt_context_create();
 569         if (!ctx) {
 570                 goto error_td_read;
 571         }
 572
 573         for (i = 0; i < opt_input_paths->len; i++) {
 574                 const char *ipath = g_ptr_array_index(opt_input_paths, i);
 575                 ret = bt_context_add_traces_recursive(ctx, ipath,
 576                                 opt_input_format, NULL);
 577                 if (ret < 0) {
 578                         fprintf(stderr, "[error] opening trace \"%s\" for reading.\n\n",
 579                                 ipath);
 580                 } else if (ret > 0) {
 581                         fprintf(stderr, "[warning] errors occurred when opening trace \"%s\" for reading, continuing anyway.\n\n",
 582                                 ipath);
 583                         open_success = 1;       /* some traces were OK */
 584                         partial_error = 1;
 585                 } else {
 586                         open_success = 1;       /* all traces were OK */
 587                 }
 588         }
 589         if (!open_success) {
 590                 fprintf(stderr, "[error] none of the specified trace paths could be opened.\n\n");
 591                 goto error_td_read;
 592         }
 593
 594         td_write = fmt_write->open_trace(opt_output_path, O_RDWR, NULL, NULL);
 595         if (!td_write) {
 596                 fprintf(stderr, "Error opening trace \"%s\" for writing.\n\n",
 597                         opt_output_path ? : "<none>");
 598                 goto error_td_write;
 599         }
 600
 601         /*
 602          * Errors happened when opening traces, but we continue anyway.
 603          * sleep to let user see the stderr output before stdout.
 604          */
 605         if (partial_error)
 606                 sleep(PARTIAL_ERROR_SLEEP);
 607
 608         ret = convert_trace(td_write, ctx);
 609         if (ret) {
 610                 fprintf(stderr, "Error printing trace.\n\n");
 611                 goto error_copy_trace;
 612         }
 613
 614         fmt_write->close_trace(td_write);
 615
 616         bt_context_put(ctx);
 617         printf_verbose("finished converting. Output written to:\n%s\n",
 618                         opt_output_path ? : "<stdout>");
 619         goto end;
 620
 621         /* Error handling */
 622 error_copy_trace:
 623         fmt_write->close_trace(td_write);
 624 error_td_write:
 625         bt_context_put(ctx);
 626 error_td_read:
 627         partial_error = 1;
 628
 629         /* teardown and exit */
 630 end:
 631         free(opt_input_format);
 632         free(opt_output_format);
 633         g_ptr_array_free(opt_input_paths, TRUE);
 634         if (partial_error)
 635                 exit(EXIT_FAILURE);
 636         else
 637                 exit(EXIT_SUCCESS);
 638 }