lustre/portals/utils/debug.c

   1 /* -*- mode: c; c-basic-offset: 8; indent-tabs-mode: nil; -*-
   2  * vim:expandtab:shiftwidth=8:tabstop=8:
   3  *
   4  * Copyright (C) 2001, 2002 Cluster File Systems, Inc.
   5  *
   6  *   This file is part of Portals, http://www.sf.net/projects/lustre/
   7  *
   8  *   Portals is free software; you can redistribute it and/or
   9  *   modify it under the terms of version 2 of the GNU General Public
  10  *   License as published by the Free Software Foundation.
  11  *
  12  *   Portals is distributed in the hope that it will be useful,
  13  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  *   GNU General Public License for more details.
  16  *
  17  *   You should have received a copy of the GNU General Public License
  18  *   along with Portals; if not, write to the Free Software
  19  *   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  20  *
  21  * Some day I'll split all of this functionality into a cfs_debug module
  22  * of its own.  That day is not today.
  23  *
  24  */
  25
  26 #define __USE_FILE_OFFSET64
  27 #define  _GNU_SOURCE
  28
  29 #include <portals/list.h>
  30
  31 #include <stdio.h>
  32 #ifdef HAVE_NETDB_H
  33 #include <netdb.h>
  34 #endif
  35 #include <stdlib.h>
  36 #include <string.h>
  37 #include "ioctl.h"
  38 #include <fcntl.h>
  39 #include <errno.h>
  40 #include <unistd.h>
  41 #ifndef __CYGWIN__
  42 # include <syscall.h>
  43 #endif
  44
  45 #include <sys/types.h>
  46 #include <sys/socket.h>
  47 #include <sys/ioctl.h>
  48 #include <sys/stat.h>
  49 #include <sys/mman.h>
  50
  51 #ifdef HAVE_LINUX_VERSION_H
  52 #include <linux/version.h>
  53
  54 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
  55 #define BUG()                            /* workaround for module.h includes */
  56 #include <linux/module.h>
  57 #endif
  58 #endif /* !HAVE_LINUX_VERSION_H */
  59
  60 #include <sys/utsname.h>
  61
  62 #include <portals/api-support.h>
  63 #include <portals/ptlctl.h>
  64 #include "parser.h"
  65
  66 #include <time.h>
  67
  68 static char rawbuf[8192];
  69 static char *buf = rawbuf;
  70 static int max = 8192;
  71 /*static int g_pfd = -1;*/
  72 static int subsystem_mask = ~0;
  73 static int debug_mask = ~0;
  74
  75 #define MAX_MARK_SIZE 100
  76
  77 static const char *portal_debug_subsystems[] =
  78         {"undefined", "mdc", "mds", "osc",
  79          "ost", "class", "log", "llite",
  80          "rpc", "mgmt", "portals", "socknal",
  81          "qswnal", "pinger", "filter", "ptlbd",
  82          "echo", "ldlm", "lov", "gmnal",
  83          "router", "cobd", "ibnal", "sm",
  84          "asobd", "confobd", "lmv", "cmobd",
  85          "lonal", NULL};
  86 static const char *portal_debug_masks[] =
  87         {"trace", "inode", "super", "ext2",
  88          "malloc", "cache", "info", "ioctl",
  89          "blocks", "net", "warning", "buffs",
  90          "other", "dentry", "portals", "page",
  91          "dlmtrace", "error", "emerg", "ha",
  92          "rpctrace", "vfstrace", "reada", "mmap",
  93          "config", NULL};
  94
  95 struct debug_daemon_cmd {
  96         char *cmd;
  97         unsigned int cmdv;
  98 };
  99
 100 static const struct debug_daemon_cmd portal_debug_daemon_cmd[] = {
 101         {"start", DEBUG_DAEMON_START},
 102         {"stop", DEBUG_DAEMON_STOP},
 103         {0, 0}
 104 };
 105
 106 static int do_debug_mask(char *name, int enable)
 107 {
 108         int found = 0, i;
 109
 110         for (i = 0; portal_debug_subsystems[i] != NULL; i++) {
 111                 if (strcasecmp(name, portal_debug_subsystems[i]) == 0 ||
 112                     strcasecmp(name, "all_subs") == 0) {
 113                         printf("%s output from subsystem \"%s\"\n",
 114                                 enable ? "Enabling" : "Disabling",
 115                                 portal_debug_subsystems[i]);
 116                         if (enable)
 117                                 subsystem_mask |= (1 << i);
 118                         else
 119                                 subsystem_mask &= ~(1 << i);
 120                         found = 1;
 121                 }
 122         }
 123         for (i = 0; portal_debug_masks[i] != NULL; i++) {
 124                 if (strcasecmp(name, portal_debug_masks[i]) == 0 ||
 125                     strcasecmp(name, "all_types") == 0) {
 126                         printf("%s output of type \"%s\"\n",
 127                                 enable ? "Enabling" : "Disabling",
 128                                 portal_debug_masks[i]);
 129                         if (enable)
 130                                 debug_mask |= (1 << i);
 131                         else
 132                                 debug_mask &= ~(1 << i);
 133                         found = 1;
 134                 }
 135         }
 136
 137         return found;
 138 }
 139
 140 int dbg_initialize(int argc, char **argv)
 141 {
 142         return 0;
 143 }
 144
 145 int jt_dbg_filter(int argc, char **argv)
 146 {
 147         int   i;
 148
 149         if (argc < 2) {
 150                 fprintf(stderr, "usage: %s <subsystem ID or debug mask>\n",
 151                         argv[0]);
 152                 return 0;
 153         }
 154
 155         for (i = 1; i < argc; i++)
 156                 if (!do_debug_mask(argv[i], 0))
 157                         fprintf(stderr, "Unknown subsystem or debug type: %s\n",
 158                                 argv[i]);
 159         return 0;
 160 }
 161
 162 int jt_dbg_show(int argc, char **argv)
 163 {
 164         int    i;
 165
 166         if (argc < 2) {
 167                 fprintf(stderr, "usage: %s <subsystem ID or debug mask>\n",
 168                         argv[0]);
 169                 return 0;
 170         }
 171
 172         for (i = 1; i < argc; i++)
 173                 if (!do_debug_mask(argv[i], 1))
 174                         fprintf(stderr, "Unknown subsystem or debug type: %s\n",
 175                                 argv[i]);
 176
 177         return 0;
 178 }
 179
 180 static int applymask(char* procpath, int value)
 181 {
 182         int rc;
 183         char buf[64];
 184         int len = snprintf(buf, 64, "%d", value);
 185
 186         int fd = open(procpath, O_WRONLY);
 187         if (fd == -1) {
 188                 fprintf(stderr, "Unable to open %s: %s\n",
 189                         procpath, strerror(errno));
 190                 return fd;
 191         }
 192         rc = write(fd, buf, len+1);
 193         if (rc<0) {
 194                 fprintf(stderr, "Write to %s failed: %s\n",
 195                         procpath, strerror(errno));
 196                 return rc;
 197         }
 198         close(fd);
 199         return 0;
 200 }
 201
 202 static void applymask_all(unsigned int subs_mask, unsigned int debug_mask)
 203 {
 204         if (!dump_filename) {
 205                 applymask("/proc/sys/portals/subsystem_debug", subs_mask);
 206                 applymask("/proc/sys/portals/debug", debug_mask);
 207         } else {
 208                 struct portals_debug_ioctl_data data;
 209
 210                 data.hdr.ioc_len = sizeof(data);
 211                 data.hdr.ioc_version = 0;
 212                 data.subs = subs_mask;
 213                 data.debug = debug_mask;
 214
 215                 dump(OBD_DEV_ID, PTL_IOC_DEBUG_MASK, &data);
 216         }
 217         printf("Applied subsystem_debug=%d, debug=%d to /proc/sys/portals\n",
 218                subs_mask, debug_mask);
 219 }
 220
 221 int jt_dbg_list(int argc, char **argv)
 222 {
 223         int i;
 224
 225         if (argc != 2) {
 226                 fprintf(stderr, "usage: %s <subs || types>\n", argv[0]);
 227                 return 0;
 228         }
 229
 230         if (strcasecmp(argv[1], "subs") == 0) {
 231                 printf("Subsystems: all_subs");
 232                 for (i = 0; portal_debug_subsystems[i] != NULL; i++)
 233                         printf(", %s", portal_debug_subsystems[i]);
 234                 printf("\n");
 235         } else if (strcasecmp(argv[1], "types") == 0) {
 236                 printf("Types: all_types");
 237                 for (i = 0; portal_debug_masks[i] != NULL; i++)
 238                         printf(", %s", portal_debug_masks[i]);
 239                 printf("\n");
 240         } else if (strcasecmp(argv[1], "applymasks") == 0) {
 241                 applymask_all(subsystem_mask, debug_mask);
 242         }
 243         return 0;
 244 }
 245
 246 /* all strings nul-terminated; only the struct and hdr need to be freed */
 247 struct dbg_line {
 248         struct ptldebug_header *hdr;
 249         char *file;
 250         char *fn;
 251         char *text;
 252         struct list_head chain;
 253 };
 254
 255 /* nurr. */
 256 static void list_add_ordered(struct dbg_line *new, struct list_head *head)
 257 {
 258         struct list_head *pos;
 259         struct dbg_line *curr;
 260
 261         list_for_each(pos, head) {
 262                 curr = list_entry(pos, struct dbg_line, chain);
 263
 264                 if (curr->hdr->ph_sec < new->hdr->ph_sec)
 265                         continue;
 266                 if (curr->hdr->ph_sec == new->hdr->ph_sec &&
 267                     curr->hdr->ph_usec < new->hdr->ph_usec)
 268                         continue;
 269
 270                 list_add(&new->chain, pos->prev);
 271                 return;
 272         }
 273         list_add_tail(&new->chain, head);
 274 }
 275
 276 static void print_saved_records(struct list_head *list, FILE *out)
 277 {
 278         struct list_head *pos, *tmp;
 279
 280         list_for_each_safe(pos, tmp, list) {
 281                 struct dbg_line *line;
 282                 struct ptldebug_header *hdr;
 283
 284                 line = list_entry(pos, struct dbg_line, chain);
 285                 list_del(&line->chain);
 286
 287                 hdr = line->hdr;
 288                 fprintf(out, "%06x:%06x:%u:%u.%06Lu:%u:%u:%u:(%s:%u:%s()) %s",
 289                         hdr->ph_subsys, hdr->ph_mask, hdr->ph_cpu_id,
 290                         hdr->ph_sec, (unsigned long long)hdr->ph_usec,
 291                         hdr->ph_stack, hdr->ph_pid, hdr->ph_extern_pid,
 292                         line->file, hdr->ph_line_num, line->fn, line->text);
 293                 free(line->hdr);
 294                 free(line);
 295         }
 296 }
 297
 298 static int parse_buffer(FILE *in, FILE *out)
 299 {
 300         struct dbg_line *line;
 301         struct ptldebug_header *hdr;
 302         char buf[4097], *p;
 303         int rc;
 304         unsigned long dropped = 0, kept = 0;
 305         struct list_head chunk_list;
 306
 307         INIT_LIST_HEAD(&chunk_list);
 308
 309         while (1) {
 310                 rc = fread(buf, sizeof(hdr->ph_len), 1, in);
 311                 if (rc <= 0)
 312                         break;
 313
 314                 hdr = (void *)buf;
 315                 if (hdr->ph_len == 0)
 316                         break;
 317                 if (hdr->ph_len > 4094) {
 318                         fprintf(stderr, "unexpected large record: %d bytes.  "
 319                                 "aborting.\n",
 320                                 hdr->ph_len);
 321                         break;
 322                 }
 323
 324                 if (hdr->ph_flags & PH_FLAG_FIRST_RECORD) {
 325                         print_saved_records(&chunk_list, out);
 326                         assert(list_empty(&chunk_list));
 327                 }
 328
 329                 rc = fread(buf + sizeof(hdr->ph_len), 1,
 330                            hdr->ph_len - sizeof(hdr->ph_len), in);
 331                 if (rc <= 0)
 332                         break;
 333
 334                 if (hdr->ph_mask &&
 335                     (!(subsystem_mask & hdr->ph_subsys) ||
 336                      (!(debug_mask & hdr->ph_mask)))) {
 337                         dropped++;
 338                         continue;
 339                 }
 340
 341                 line = malloc(sizeof(*line));
 342                 if (line == NULL) {
 343                         fprintf(stderr, "malloc failed; printing accumulated "
 344                                 "records and exiting.\n");
 345                         break;
 346                 }
 347
 348                 line->hdr = malloc(hdr->ph_len + 1);
 349                 if (line->hdr == NULL) {
 350                         fprintf(stderr, "malloc failed; printing accumulated "
 351                                 "records and exiting.\n");
 352                         break;
 353                 }
 354
 355                 p = (void *)line->hdr;
 356                 memcpy(line->hdr, buf, hdr->ph_len);
 357                 p[hdr->ph_len] = '\0';
 358
 359                 p += sizeof(*hdr);
 360                 line->file = p;
 361                 p += strlen(line->file) + 1;
 362                 line->fn = p;
 363                 p += strlen(line->fn) + 1;
 364                 line->text = p;
 365
 366                 list_add_ordered(line, &chunk_list);
 367                 kept++;
 368         }
 369
 370         print_saved_records(&chunk_list, out);
 371
 372         printf("Debug log: %lu lines, %lu kept, %lu dropped.\n",
 373                 dropped + kept, kept, dropped);
 374         return 0;
 375 }
 376
 377 int jt_dbg_debug_kernel(int argc, char **argv)
 378 {
 379         char filename[4096];
 380         struct stat st;
 381         int rc, raw = 0, fd;
 382         FILE *in, *out = stdout;
 383
 384         if (argc > 3) {
 385                 fprintf(stderr, "usage: %s [file] [raw]\n", argv[0]);
 386                 return 0;
 387         }
 388
 389         if (argc > 2) {
 390                 raw = atoi(argv[2]);
 391         } else if (argc > 1 && (argv[1][0] == '0' || argv[1][0] == '1')) {
 392                 raw = atoi(argv[1]);
 393                 argc--;
 394         }
 395
 396         /* If we are dumping raw (which means no conversion step to ASCII)
 397          * then dump directly to any supplied filename, otherwise this is
 398          * just a temp file and we dump to the real file at convert time. */
 399         if (argc > 1 && raw)
 400                 strcpy(filename, argv[1]);
 401         else
 402                 sprintf(filename, "/tmp/lustre-log.%lu.%u",time(NULL),getpid());
 403
 404         if (stat(filename, &st) == 0 && S_ISREG(st.st_mode))
 405                 unlink(filename);
 406
 407         fd = open("/proc/sys/portals/dump_kernel", O_WRONLY);
 408         if (fd < 0) {
 409                 fprintf(stderr, "open(dump_kernel) failed: %s\n",
 410                         strerror(errno));
 411                 return 1;
 412         }
 413
 414         rc = write(fd, filename, strlen(filename));
 415         if (rc != strlen(filename)) {
 416                 fprintf(stderr, "write(%s) failed: %s\n", filename,
 417                         strerror(errno));
 418                 close(fd);
 419                 return 1;
 420         }
 421         close(fd);
 422
 423         if (raw)
 424                 return 0;
 425
 426         in = fopen(filename, "r");
 427         if (in == NULL) {
 428                 if (errno == ENOENT) /* no dump file created */
 429                         return 0;
 430
 431                 fprintf(stderr, "fopen(%s) failed: %s\n", filename,
 432                         strerror(errno));
 433                 return 1;
 434         }
 435         if (argc > 1) {
 436                 out = fopen(argv[1], "w");
 437                 if (out == NULL) {
 438                         fprintf(stderr, "fopen(%s) failed: %s\n", argv[1],
 439                                 strerror(errno));
 440                         fclose(in);
 441                         return 1;
 442                 }
 443         }
 444
 445         rc = parse_buffer(in, out);
 446         fclose(in);
 447         if (argc > 1)
 448                 fclose(out);
 449         if (rc) {
 450                 fprintf(stderr, "parse_buffer failed; leaving tmp file %s "
 451                         "behind.\n", filename);
 452         } else {
 453                 rc = unlink(filename);
 454                 if (rc)
 455                         fprintf(stderr, "dumped successfully, but couldn't "
 456                                 "unlink tmp file %s: %s\n", filename,
 457                                 strerror(errno));
 458         }
 459         return rc;
 460 }
 461
 462 int jt_dbg_debug_file(int argc, char **argv)
 463 {
 464         int fdin,fdout;
 465         FILE *in, *out = stdout;
 466         if (argc > 3 || argc < 2) {
 467                 fprintf(stderr, "usage: %s <input> [output]\n", argv[0]);
 468                 return 0;
 469         }
 470
 471         fdin = open(argv[1], O_RDONLY | O_LARGEFILE);
 472         if (fdin == -1) {
 473                 fprintf(stderr, "open(%s) failed: %s\n", argv[1],
 474                         strerror(errno));
 475                 return 1;
 476         }
 477         in = fdopen(fdin, "r");
 478         if (in == NULL) {
 479                 fprintf(stderr, "fopen(%s) failed: %s\n", argv[1],
 480                         strerror(errno));
 481                 close(fdin);
 482                 return 1;
 483         }
 484         if (argc > 2) {
 485                 fdout = open(argv[2], O_CREAT | O_WRONLY | O_LARGEFILE);
 486                 if (fdout == -1) {
 487                         fprintf(stderr, "open(%s) failed: %s\n", argv[2],
 488                                 strerror(errno));
 489                         fclose(in);
 490                         return 1;
 491                 }
 492                 out = fdopen(fdout, "w");
 493                 if (out == NULL) {
 494                         fprintf(stderr, "fopen(%s) failed: %s\n", argv[2],
 495                                 strerror(errno));
 496                         fclose(in);
 497                         close(fdout);
 498                         return 1;
 499                 }
 500         }
 501
 502         return parse_buffer(in, out);
 503 }
 504
 505 static int
 506 dbg_write_cmd(int fd, char *str)
 507 {
 508         int    len = strlen(str);
 509         int    rc  = write(fd, str, len);
 510
 511         return (rc == len ? 0 : 1);
 512 }
 513
 514 const char debug_daemon_usage[] = "usage: %s {start file [MB]|stop}\n";
 515 #define DAEMON_FILE "/proc/sys/portals/daemon_file"
 516 int jt_dbg_debug_daemon(int argc, char **argv)
 517 {
 518         int  rc;
 519         int  fd;
 520
 521         if (argc <= 1) {
 522                 fprintf(stderr, debug_daemon_usage, argv[0]);
 523                 return 1;
 524         }
 525
 526         fd = open(DAEMON_FILE, O_WRONLY);
 527         if (fd < 0) {
 528                 fprintf(stderr, "open %s failed: %s\n", DAEMON_FILE,
 529                         strerror(errno));
 530                 return -1;
 531         }
 532
 533         rc = -1;
 534         if (strcasecmp(argv[1], "start") == 0) {
 535                 if (argc < 3 || argc > 4 ||
 536                     (argc == 4 && strlen(argv[3]) > 5)) {
 537                         fprintf(stderr, debug_daemon_usage, argv[0]);
 538                         goto out;
 539                 }
 540
 541                 if (argc == 4) {
 542                         char       buf[12];
 543                         const long min_size = 10;
 544                         const long max_size = 20480;
 545                         long       size;
 546                         char      *end;
 547
 548                         size = strtoul(argv[3], &end, 0);
 549                         if (size < min_size ||
 550                             size > max_size ||
 551                             *end != 0) {
 552                                 fprintf(stderr, "size %s invalid, must be in "
 553                                         "the range %ld-%ld MB\n", argv[3],
 554                                         min_size, max_size);
 555                                 goto out;
 556                         }
 557
 558                         snprintf(buf, sizeof(buf), "size=%ld", size);
 559                         rc = dbg_write_cmd(fd, buf);
 560                         if (rc != 0) {
 561                                 fprintf(stderr, "set %s failed: %s\n",
 562                                         buf, strerror(errno));
 563                                 goto out;
 564                         }
 565                 }
 566
 567                 rc = dbg_write_cmd(fd, "start");
 568                 if (rc != 0) {
 569                         fprintf(stderr, "start debug_daemon on %s failed: %s\n",
 570                                 argv[2], strerror(errno));
 571                         goto out;
 572                 }
 573
 574                 rc = 0;
 575                 goto out;
 576         }
 577
 578         if (strcasecmp(argv[1], "stop") == 0) {
 579                 rc = dbg_write_cmd(fd, "stop");
 580                 if (rc != 0) {
 581                         fprintf(stderr, "stopping debug_daemon failed: %s\n",
 582                                 strerror(errno));
 583                         goto out;
 584                 }
 585
 586                 rc = 0;
 587                 goto out;
 588         }
 589
 590         fprintf(stderr, debug_daemon_usage, argv[0]);
 591         rc = -1;
 592 out:
 593         close(fd);
 594         return rc;
 595 }
 596
 597 int jt_dbg_clear_debug_buf(int argc, char **argv)
 598 {
 599         int rc;
 600         struct portal_ioctl_data data;
 601
 602         if (argc != 1) {
 603                 fprintf(stderr, "usage: %s\n", argv[0]);
 604                 return 0;
 605         }
 606
 607         memset(&data, 0, sizeof(data));
 608         if (portal_ioctl_pack(&data, &buf, max) != 0) {
 609                 fprintf(stderr, "portal_ioctl_pack failed.\n");
 610                 return -1;
 611         }
 612
 613         rc = l_ioctl(PORTALS_DEV_ID, IOC_PORTAL_CLEAR_DEBUG, buf);
 614         if (rc) {
 615                 fprintf(stderr, "IOC_PORTAL_CLEAR_DEBUG failed: %s\n",
 616                         strerror(errno));
 617                 return -1;
 618         }
 619         return 0;
 620 }
 621
 622 int jt_dbg_mark_debug_buf(int argc, char **argv)
 623 {
 624         int rc, max_size = MAX_MARK_SIZE-1;
 625         struct portal_ioctl_data data;
 626         char *text;
 627         time_t now = time(NULL);
 628
 629         if (argc > 1) {
 630                 int counter;
 631                 text = malloc(MAX_MARK_SIZE);
 632                 strncpy(text, argv[1], max_size);
 633                 max_size-=strlen(argv[1]);
 634                 for(counter = 2; (counter < argc) && (max_size > 0) ; counter++){
 635                         strncat(text, " ", 1);
 636                         max_size-=1;
 637                         strncat(text, argv[counter], max_size);
 638                         max_size-=strlen(argv[counter]);
 639                 }
 640         } else {
 641                 text = ctime(&now);
 642                 text[strlen(text) - 1] = '\0'; /* stupid \n */
 643         }
 644         if (!max_size) {
 645                 text[MAX_MARK_SIZE - 1] = '\0';
 646         }
 647
 648         memset(&data, 0, sizeof(data));
 649         data.ioc_inllen1 = strlen(text) + 1;
 650         data.ioc_inlbuf1 = text;
 651         if (portal_ioctl_pack(&data, &buf, max) != 0) {
 652                 fprintf(stderr, "portal_ioctl_pack failed.\n");
 653                 return -1;
 654         }
 655
 656         rc = l_ioctl(PORTALS_DEV_ID, IOC_PORTAL_MARK_DEBUG, buf);
 657         if (rc) {
 658                 fprintf(stderr, "IOC_PORTAL_MARK_DEBUG failed: %s\n",
 659                         strerror(errno));
 660                 return -1;
 661         }
 662         return 0;
 663 }
 664
 665 static struct mod_paths {
 666         char *name, *path;
 667 } mod_paths[] = {
 668         {"libcfs", "lustre/portals/libcfs"},
 669         {"portals", "lustre/portals/portals"},
 670         {"ksocknal", "lustre/portals/knals/socknal"},
 671         {"kptlrouter", "lustre/portals/router"},
 672         {"lvfs", "lustre/lvfs"},
 673         {"obdclass", "lustre/obdclass"},
 674         {"llog_test", "lustre/obdclass"},
 675         {"ptlrpc", "lustre/ptlrpc"},
 676         {"obdext2", "lustre/obdext2"},
 677         {"ost", "lustre/ost"},
 678         {"osc", "lustre/osc"},
 679         {"mds", "lustre/mds"},
 680         {"mdc", "lustre/mdc"},
 681         {"llite", "lustre/llite"},
 682         {"ldiskfs", "lustre/ldiskfs"},
 683         {"smfs", "lustre/smfs"},
 684         {"obdecho", "lustre/obdecho"},
 685         {"ldlm", "lustre/ldlm"},
 686         {"obdfilter", "lustre/obdfilter"},
 687         {"extN", "lustre/extN"},
 688         {"lov", "lustre/lov"},
 689         {"lmv", "lustre/lmv"},
 690         {"fsfilt_ext3", "lustre/lvfs"},
 691         {"fsfilt_extN", "lustre/lvfs"},
 692         {"fsfilt_reiserfs", "lustre/lvfs"},
 693         {"fsfilt_smfs", "lustre/lvfs"},
 694         {"fsfilt_ldiskfs", "lustre/lvfs"},
 695         {"mds_ext2", "lustre/mds"},
 696         {"mds_ext3", "lustre/mds"},
 697         {"mds_extN", "lustre/mds"},
 698         {"ptlbd", "lustre/ptlbd"},
 699         {"mgmt_svc", "lustre/mgmt"},
 700         {"mgmt_cli", "lustre/mgmt"},
 701         {"cobd", "lustre/cobd"},
 702         {"cmobd", "lustre/cmobd"},
 703         {"conf_obd", "lustre/obdclass"},
 704         {NULL, NULL}
 705 };
 706
 707 static int jt_dbg_modules_2_4(int argc, char **argv)
 708 {
 709 #ifdef HAVE_LINUX_VERSION_H
 710 #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0))
 711         struct mod_paths *mp;
 712         char *path = "..";
 713         char *kernel = "linux";
 714
 715         if (argc >= 2)
 716                 path = argv[1];
 717         if (argc == 3)
 718                 kernel = argv[2];
 719         if (argc > 3) {
 720                 printf("%s [path] [kernel]\n", argv[0]);
 721                 return 0;
 722         }
 723
 724         for (mp = mod_paths; mp->name != NULL; mp++) {
 725                 struct module_info info;
 726                 int rc;
 727                 size_t crap;
 728                 int query_module(const char *name, int which, void *buf,
 729                                  size_t bufsize, size_t *ret);
 730
 731                 rc = query_module(mp->name, QM_INFO, &info, sizeof(info),
 732                                   &crap);
 733                 if (rc < 0) {
 734                         if (errno != ENOENT)
 735                                 printf("query_module(%s) failed: %s\n",
 736                                        mp->name, strerror(errno));
 737                 } else {
 738                         printf("add-symbol-file %s/%s/%s.o 0x%0lx\n", path,
 739                                mp->path, mp->name,
 740                                info.addr + sizeof(struct module));
 741                 }
 742         }
 743
 744         return 0;
 745 #endif /* Headers are 2.6-only */
 746 #endif /* !HAVE_LINUX_VERSION_H */
 747         return -EINVAL;
 748 }
 749
 750 static int jt_dbg_modules_2_5(int argc, char **argv)
 751 {
 752         struct mod_paths *mp;
 753         char *path = "..";
 754         char *kernel = "linux";
 755         const char *proc = "/proc/modules";
 756         char modname[128], others[128];
 757         long modaddr;
 758         int rc;
 759         FILE *file;
 760
 761         if (argc >= 2)
 762                 path = argv[1];
 763         if (argc == 3)
 764                 kernel = argv[2];
 765         if (argc > 3) {
 766                 printf("%s [path] [kernel]\n", argv[0]);
 767                 return 0;
 768         }
 769
 770         file = fopen(proc, "r");
 771         if (!file) {
 772                 printf("failed open %s: %s\n", proc, strerror(errno));
 773                 return 0;
 774         }
 775
 776         while ((rc = fscanf(file, "%s %s %s %s %s %lx\n",
 777                 modname, others, others, others, others, &modaddr)) == 6) {
 778                 for (mp = mod_paths; mp->name != NULL; mp++) {
 779                         if (!strcmp(mp->name, modname))
 780                                 break;
 781                 }
 782                 if (mp->name) {
 783                         printf("add-symbol-file %s/%s/%s.o 0x%0lx\n", path,
 784                                mp->path, mp->name, modaddr);
 785                 }
 786         }
 787
 788         return 0;
 789 }
 790
 791 int jt_dbg_modules(int argc, char **argv)
 792 {
 793         int rc = 0;
 794         struct utsname sysinfo;
 795
 796         rc = uname(&sysinfo);
 797         if (rc) {
 798                 printf("uname() failed: %s\n", strerror(errno));
 799                 return 0;
 800         }
 801
 802         if (sysinfo.release[2] > '4') {
 803                 return jt_dbg_modules_2_5(argc, argv);
 804         } else {
 805                 return jt_dbg_modules_2_4(argc, argv);
 806         }
 807
 808         return 0;
 809 }
 810
 811 int jt_dbg_panic(int argc, char **argv)
 812 {
 813         int rc;
 814         struct portal_ioctl_data data;
 815
 816         if (argc != 1) {
 817                 fprintf(stderr, "usage: %s\n", argv[0]);
 818                 return 0;
 819         }
 820
 821         memset(&data, 0, sizeof(data));
 822         if (portal_ioctl_pack(&data, &buf, max) != 0) {
 823                 fprintf(stderr, "portal_ioctl_pack failed.\n");
 824                 return -1;
 825         }
 826
 827         rc = l_ioctl(PORTALS_DEV_ID, IOC_PORTAL_PANIC, buf);
 828         if (rc) {
 829                 fprintf(stderr, "IOC_PORTAL_PANIC failed: %s\n",
 830                         strerror(errno));
 831                 return -1;
 832         }
 833         return 0;
 834 }