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