Annotation of sys/ddb/db_command.c, Revision 1.1
1.1 ! nbrk 1: /* $OpenBSD: db_command.c,v 1.45 2006/09/30 14:31:28 mickey Exp $ */
! 2: /* $NetBSD: db_command.c,v 1.20 1996/03/30 22:30:05 christos Exp $ */
! 3:
! 4: /*
! 5: * Mach Operating System
! 6: * Copyright (c) 1993,1992,1991,1990 Carnegie Mellon University
! 7: * All Rights Reserved.
! 8: *
! 9: * Permission to use, copy, modify and distribute this software and its
! 10: * documentation is hereby granted, provided that both the copyright
! 11: * notice and this permission notice appear in all copies of the
! 12: * software, derivative works or modified versions, and any portions
! 13: * thereof, and that both notices appear in supporting documentation.
! 14: *
! 15: * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
! 16: * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
! 17: * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
! 18: *
! 19: * Carnegie Mellon requests users of this software to return to
! 20: *
! 21: * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
! 22: * School of Computer Science
! 23: * Carnegie Mellon University
! 24: * Pittsburgh PA 15213-3890
! 25: *
! 26: * any improvements or extensions that they make and grant Carnegie Mellon
! 27: * the rights to redistribute these changes.
! 28: */
! 29:
! 30: /*
! 31: * Command dispatcher.
! 32: */
! 33: #include <sys/param.h>
! 34: #include <sys/systm.h>
! 35: #include <sys/proc.h>
! 36: #include <sys/reboot.h>
! 37: #include <sys/extent.h>
! 38: #include <sys/pool.h>
! 39: #include <sys/msgbuf.h>
! 40: #include <sys/malloc.h>
! 41:
! 42: #include <uvm/uvm_extern.h>
! 43: #include <machine/db_machdep.h> /* type definitions */
! 44:
! 45: #include <ddb/db_lex.h>
! 46: #include <ddb/db_output.h>
! 47: #include <ddb/db_command.h>
! 48: #include <ddb/db_break.h>
! 49: #include <ddb/db_watch.h>
! 50: #include <ddb/db_run.h>
! 51: #include <ddb/db_variables.h>
! 52: #include <ddb/db_interface.h>
! 53: #include <ddb/db_sym.h>
! 54: #include <ddb/db_extern.h>
! 55:
! 56: #include <uvm/uvm_ddb.h>
! 57:
! 58: /*
! 59: * Exported global variables
! 60: */
! 61: boolean_t db_cmd_loop_done;
! 62: label_t *db_recover;
! 63:
! 64: /*
! 65: * if 'ed' style: 'dot' is set at start of last item printed,
! 66: * and '+' points to next line.
! 67: * Otherwise: 'dot' points to next item, '..' points to last.
! 68: */
! 69: boolean_t db_ed_style = TRUE;
! 70:
! 71: db_addr_t db_dot; /* current location */
! 72: db_addr_t db_last_addr; /* last explicit address typed */
! 73: db_addr_t db_prev; /* last address examined
! 74: or written */
! 75: db_addr_t db_next; /* next address to be examined
! 76: or written */
! 77:
! 78: /*
! 79: * Utility routine - discard tokens through end-of-line.
! 80: */
! 81: void
! 82: db_skip_to_eol(void)
! 83: {
! 84: int t;
! 85: do {
! 86: t = db_read_token();
! 87: } while (t != tEOL);
! 88: }
! 89:
! 90: /*
! 91: * Results of command search.
! 92: */
! 93: #define CMD_UNIQUE 0
! 94: #define CMD_FOUND 1
! 95: #define CMD_NONE 2
! 96: #define CMD_AMBIGUOUS 3
! 97:
! 98: /*
! 99: * Search for command prefix.
! 100: */
! 101: int
! 102: db_cmd_search(char *name, struct db_command *table, struct db_command **cmdp)
! 103: {
! 104: struct db_command *cmd;
! 105: int result = CMD_NONE;
! 106:
! 107: for (cmd = table; cmd->name != 0; cmd++) {
! 108: char *lp;
! 109: char *rp;
! 110: int c;
! 111:
! 112: lp = name;
! 113: rp = cmd->name;
! 114: while ((c = *lp) == *rp) {
! 115: if (c == 0) {
! 116: /* complete match */
! 117: *cmdp = cmd;
! 118: return (CMD_UNIQUE);
! 119: }
! 120: lp++;
! 121: rp++;
! 122: }
! 123: if (c == 0) {
! 124: /* end of name, not end of command -
! 125: partial match */
! 126: if (result == CMD_FOUND) {
! 127: result = CMD_AMBIGUOUS;
! 128: /* but keep looking for a full match -
! 129: this lets us match single letters */
! 130: }
! 131: else {
! 132: *cmdp = cmd;
! 133: result = CMD_FOUND;
! 134: }
! 135: }
! 136: }
! 137: return (result);
! 138: }
! 139:
! 140: void
! 141: db_cmd_list(struct db_command *table)
! 142: {
! 143: struct db_command *cmd;
! 144:
! 145: for (cmd = table; cmd->name != 0; cmd++) {
! 146: db_printf("%-12s", cmd->name);
! 147: db_end_line(12);
! 148: }
! 149: }
! 150:
! 151: void
! 152: db_command(struct db_command **last_cmdp, struct db_command *cmd_table)
! 153: {
! 154: struct db_command *cmd;
! 155: int t;
! 156: char modif[TOK_STRING_SIZE];
! 157: db_expr_t addr, count;
! 158: boolean_t have_addr = FALSE;
! 159: int result;
! 160:
! 161: t = db_read_token();
! 162: if (t == tEOL) {
! 163: /* empty line repeats last command, at 'next' */
! 164: cmd = *last_cmdp;
! 165: addr = (db_expr_t)db_next;
! 166: have_addr = FALSE;
! 167: count = 1;
! 168: modif[0] = '\0';
! 169: }
! 170: else if (t == tEXCL) {
! 171: db_fncall(0, 0, 0, NULL);
! 172: return;
! 173: }
! 174: else if (t != tIDENT) {
! 175: db_printf("?\n");
! 176: db_flush_lex();
! 177: return;
! 178: }
! 179: else {
! 180: /*
! 181: * Search for command
! 182: */
! 183: while (cmd_table) {
! 184: result = db_cmd_search(db_tok_string,
! 185: cmd_table,
! 186: &cmd);
! 187: switch (result) {
! 188: case CMD_NONE:
! 189: db_printf("No such command\n");
! 190: db_flush_lex();
! 191: return;
! 192: case CMD_AMBIGUOUS:
! 193: db_printf("Ambiguous\n");
! 194: db_flush_lex();
! 195: return;
! 196: default:
! 197: break;
! 198: }
! 199: if ((cmd_table = cmd->more) != 0) {
! 200: t = db_read_token();
! 201: if (t != tIDENT) {
! 202: db_cmd_list(cmd_table);
! 203: db_flush_lex();
! 204: return;
! 205: }
! 206: }
! 207: }
! 208:
! 209: if ((cmd->flag & CS_OWN) == 0) {
! 210: /*
! 211: * Standard syntax:
! 212: * command [/modifier] [addr] [,count]
! 213: */
! 214: t = db_read_token();
! 215: if (t == tSLASH) {
! 216: t = db_read_token();
! 217: if (t != tIDENT) {
! 218: db_printf("Bad modifier\n");
! 219: db_flush_lex();
! 220: return;
! 221: }
! 222: db_strlcpy(modif, db_tok_string, sizeof(modif));
! 223: }
! 224: else {
! 225: db_unread_token(t);
! 226: modif[0] = '\0';
! 227: }
! 228:
! 229: if (db_expression(&addr)) {
! 230: db_dot = (db_addr_t) addr;
! 231: db_last_addr = db_dot;
! 232: have_addr = TRUE;
! 233: }
! 234: else {
! 235: addr = (db_expr_t) db_dot;
! 236: have_addr = FALSE;
! 237: }
! 238: t = db_read_token();
! 239: if (t == tCOMMA) {
! 240: if (!db_expression(&count)) {
! 241: db_printf("Count missing\n");
! 242: db_flush_lex();
! 243: return;
! 244: }
! 245: }
! 246: else {
! 247: db_unread_token(t);
! 248: count = -1;
! 249: }
! 250: if ((cmd->flag & CS_MORE) == 0) {
! 251: db_skip_to_eol();
! 252: }
! 253: }
! 254: }
! 255: *last_cmdp = cmd;
! 256: if (cmd != 0) {
! 257: /*
! 258: * Execute the command.
! 259: */
! 260: (*cmd->fcn)(addr, have_addr, count, modif);
! 261:
! 262: if (cmd->flag & CS_SET_DOT) {
! 263: /*
! 264: * If command changes dot, set dot to
! 265: * previous address displayed (if 'ed' style).
! 266: */
! 267: if (db_ed_style) {
! 268: db_dot = db_prev;
! 269: }
! 270: else {
! 271: db_dot = db_next;
! 272: }
! 273: }
! 274: else {
! 275: /*
! 276: * If command does not change dot,
! 277: * set 'next' location to be the same.
! 278: */
! 279: db_next = db_dot;
! 280: }
! 281: }
! 282: }
! 283:
! 284: /*ARGSUSED*/
! 285: void
! 286: db_buf_print_cmd(db_expr_t addr, int have_addr, db_expr_t count, char *modif)
! 287: {
! 288: boolean_t full = FALSE;
! 289:
! 290: if (modif[0] == 'f')
! 291: full = TRUE;
! 292:
! 293: vfs_buf_print((struct buf *) addr, full, db_printf);
! 294: }
! 295:
! 296: /*ARGSUSED*/
! 297: void
! 298: db_map_print_cmd(db_expr_t addr, int have_addr, db_expr_t count, char *modif)
! 299: {
! 300: boolean_t full = FALSE;
! 301:
! 302: if (modif[0] == 'f')
! 303: full = TRUE;
! 304:
! 305: uvm_map_printit((struct vm_map *) addr, full, db_printf);
! 306: }
! 307:
! 308: /*ARGSUSED*/
! 309: void
! 310: db_malloc_print_cmd(db_expr_t addr, int have_addr, db_expr_t count, char *modif)
! 311: {
! 312: #if defined(MALLOC_DEBUG)
! 313: extern void debug_malloc_printit(int (*)(const char *, ...), vaddr_t);
! 314:
! 315: if (!have_addr)
! 316: addr = 0;
! 317:
! 318: debug_malloc_printit(db_printf, (vaddr_t)addr);
! 319: #else
! 320: malloc_printit(db_printf);
! 321: #endif
! 322: }
! 323:
! 324: /*ARGSUSED*/
! 325: void
! 326: db_mount_print_cmd(db_expr_t addr, int have_addr, db_expr_t count, char *modif)
! 327: {
! 328: boolean_t full = FALSE;
! 329:
! 330: if (modif[0] == 'f')
! 331: full = TRUE;
! 332:
! 333: vfs_mount_print((struct mount *) addr, full, db_printf);
! 334: }
! 335:
! 336: /*ARGSUSED*/
! 337: void
! 338: db_object_print_cmd(db_expr_t addr, int have_addr, db_expr_t count, char *modif)
! 339: {
! 340: boolean_t full = FALSE;
! 341:
! 342: if (modif[0] == 'f')
! 343: full = TRUE;
! 344:
! 345: uvm_object_printit((struct uvm_object *) addr, full, db_printf);
! 346: }
! 347:
! 348: /*ARGSUSED*/
! 349: void
! 350: db_page_print_cmd(db_expr_t addr, int have_addr, db_expr_t count, char *modif)
! 351: {
! 352: boolean_t full = FALSE;
! 353:
! 354: if (modif[0] == 'f')
! 355: full = TRUE;
! 356:
! 357: uvm_page_printit((struct vm_page *) addr, full, db_printf);
! 358: }
! 359:
! 360: /*ARGSUSED*/
! 361: void
! 362: db_vnode_print_cmd(db_expr_t addr, int have_addr, db_expr_t count, char *modif)
! 363: {
! 364: boolean_t full = FALSE;
! 365:
! 366: if (modif[0] == 'f')
! 367: full = TRUE;
! 368:
! 369: vfs_vnode_print((struct vnode *) addr, full, db_printf);
! 370: }
! 371:
! 372: /*ARGSUSED*/
! 373: void
! 374: db_show_panic_cmd(db_expr_t addr, int have_addr, db_expr_t count, char *modif)
! 375: {
! 376: if (panicstr)
! 377: db_printf("%s\n", panicstr);
! 378: else
! 379: db_printf("the kernel did not panic\n"); /* yet */
! 380: }
! 381:
! 382: /*ARGSUSED*/
! 383: void
! 384: db_extent_print_cmd(db_expr_t addr, int have_addr, db_expr_t count, char *modif)
! 385: {
! 386: extent_print_all();
! 387: }
! 388:
! 389: /*ARGSUSED*/
! 390: void
! 391: db_pool_print_cmd(db_expr_t addr, int have_addr, db_expr_t count, char *modif)
! 392: {
! 393: pool_printit((struct pool *)addr, modif, db_printf);
! 394: }
! 395:
! 396: /*ARGSUSED*/
! 397: void
! 398: db_proc_print_cmd(db_expr_t addr, int have_addr, db_expr_t count, char *modif)
! 399: {
! 400: if (!have_addr)
! 401: addr = (db_expr_t)curproc;
! 402:
! 403: proc_printit((struct proc *)addr, modif, db_printf);
! 404: }
! 405:
! 406: /*ARGSUSED*/
! 407: void
! 408: db_uvmexp_print_cmd(db_expr_t addr, int have_addr, db_expr_t count, char *modif)
! 409: {
! 410: uvmexp_print(db_printf);
! 411: }
! 412:
! 413: /*
! 414: * 'show' commands
! 415: */
! 416:
! 417: struct db_command db_show_all_cmds[] = {
! 418: { "procs", db_show_all_procs, 0, NULL },
! 419: { "callout", db_show_callout, 0, NULL },
! 420: { "pools", db_show_all_pools, 0, NULL },
! 421: { NULL, NULL, 0, NULL }
! 422: };
! 423:
! 424: struct db_command db_show_cmds[] = {
! 425: { "all", NULL, 0, db_show_all_cmds },
! 426: { "breaks", db_listbreak_cmd, 0, NULL },
! 427: { "buf", db_buf_print_cmd, 0, NULL },
! 428: { "extents", db_extent_print_cmd, 0, NULL },
! 429: { "malloc", db_malloc_print_cmd, 0, NULL },
! 430: { "map", db_map_print_cmd, 0, NULL },
! 431: { "mount", db_mount_print_cmd, 0, NULL },
! 432: { "object", db_object_print_cmd, 0, NULL },
! 433: { "page", db_page_print_cmd, 0, NULL },
! 434: { "panic", db_show_panic_cmd, 0, NULL },
! 435: { "pool", db_pool_print_cmd, 0, NULL },
! 436: { "proc", db_proc_print_cmd, 0, NULL },
! 437: { "registers", db_show_regs, 0, NULL },
! 438: { "uvmexp", db_uvmexp_print_cmd, 0, NULL },
! 439: { "vnode", db_vnode_print_cmd, 0, NULL },
! 440: { "watches", db_listwatch_cmd, 0, NULL },
! 441: { NULL, NULL, 0, NULL }
! 442: };
! 443:
! 444: struct db_command db_boot_cmds[] = {
! 445: { "sync", db_boot_sync_cmd, 0, 0 },
! 446: { "crash", db_boot_crash_cmd, 0, 0 },
! 447: { "dump", db_boot_dump_cmd, 0, 0 },
! 448: { "halt", db_boot_halt_cmd, 0, 0 },
! 449: { "reboot", db_boot_reboot_cmd, 0, 0 },
! 450: { "poweroff", db_boot_poweroff_cmd, 0, 0 },
! 451: { NULL, }
! 452: };
! 453:
! 454: struct db_command db_command_table[] = {
! 455: #ifdef DB_MACHINE_COMMANDS
! 456: /* this must be the first entry, if it exists */
! 457: { "machine", NULL, 0, NULL},
! 458: #endif
! 459: { "print", db_print_cmd, 0, NULL },
! 460: { "examine", db_examine_cmd, CS_SET_DOT, NULL },
! 461: { "x", db_examine_cmd, CS_SET_DOT, NULL },
! 462: { "search", db_search_cmd, CS_OWN|CS_SET_DOT, NULL },
! 463: { "set", db_set_cmd, CS_OWN, NULL },
! 464: { "write", db_write_cmd, CS_MORE|CS_SET_DOT, NULL },
! 465: { "w", db_write_cmd, CS_MORE|CS_SET_DOT, NULL },
! 466: { "delete", db_delete_cmd, 0, NULL },
! 467: { "d", db_delete_cmd, 0, NULL },
! 468: { "break", db_breakpoint_cmd, 0, NULL },
! 469: { "dwatch", db_deletewatch_cmd, 0, NULL },
! 470: { "watch", db_watchpoint_cmd, CS_MORE, NULL },
! 471: { "step", db_single_step_cmd, 0, NULL },
! 472: { "s", db_single_step_cmd, 0, NULL },
! 473: { "continue", db_continue_cmd, 0, NULL },
! 474: { "c", db_continue_cmd, 0, NULL },
! 475: { "until", db_trace_until_call_cmd,0, NULL },
! 476: { "next", db_trace_until_matching_cmd,0, NULL },
! 477: { "match", db_trace_until_matching_cmd,0, NULL },
! 478: { "trace", db_stack_trace_cmd, 0, NULL },
! 479: { "call", db_fncall, CS_OWN, NULL },
! 480: { "ps", db_show_all_procs, 0, NULL },
! 481: { "callout", db_show_callout, 0, NULL },
! 482: { "show", NULL, 0, db_show_cmds },
! 483: { "boot", NULL, 0, db_boot_cmds },
! 484: { "help", db_help_cmd, 0, NULL },
! 485: { "hangman", db_hangman, 0, NULL },
! 486: { "dmesg", db_dmesg_cmd, 0, NULL },
! 487: { NULL, NULL, 0, NULL }
! 488: };
! 489:
! 490: #ifdef DB_MACHINE_COMMANDS
! 491:
! 492: /* this function should be called to install the machine dependent
! 493: commands. It should be called before the debugger is enabled */
! 494: void db_machine_commands_install(struct db_command *ptr)
! 495: {
! 496: db_command_table[0].more = ptr;
! 497: return;
! 498: }
! 499:
! 500: #endif
! 501:
! 502: struct db_command *db_last_command = 0;
! 503:
! 504: void
! 505: db_help_cmd(db_expr_t addr, int haddr, db_expr_t count, char *modif)
! 506: {
! 507: db_cmd_list(db_command_table);
! 508: }
! 509:
! 510: void
! 511: db_command_loop(void)
! 512: {
! 513: label_t db_jmpbuf;
! 514: label_t *savejmp;
! 515: extern int db_output_line;
! 516:
! 517: /*
! 518: * Initialize 'prev' and 'next' to dot.
! 519: */
! 520: db_prev = db_dot;
! 521: db_next = db_dot;
! 522:
! 523: db_cmd_loop_done = 0;
! 524:
! 525: savejmp = db_recover;
! 526: db_recover = &db_jmpbuf;
! 527: (void) setjmp(&db_jmpbuf);
! 528:
! 529: while (!db_cmd_loop_done) {
! 530:
! 531: if (db_print_position() != 0)
! 532: db_printf("\n");
! 533: db_output_line = 0;
! 534:
! 535: #ifdef MULTIPROCESSOR
! 536: db_printf("ddb{%d}> ", CPU_INFO_UNIT(curcpu()));
! 537: #else
! 538: db_printf("ddb> ");
! 539: #endif
! 540: (void) db_read_line();
! 541:
! 542: db_command(&db_last_command, db_command_table);
! 543: }
! 544:
! 545: db_recover = savejmp;
! 546: }
! 547:
! 548: void
! 549: db_error(char *s)
! 550: {
! 551: if (s)
! 552: db_printf("%s", s);
! 553: db_flush_lex();
! 554: longjmp(db_recover);
! 555: }
! 556:
! 557:
! 558: /*
! 559: * Call random function:
! 560: * !expr(arg,arg,arg)
! 561: */
! 562: /*ARGSUSED*/
! 563: void
! 564: db_fncall(db_expr_t addr, int have_addr, db_expr_t count, char *modif)
! 565: {
! 566: db_expr_t fn_addr;
! 567: #define MAXARGS 11
! 568: db_expr_t args[MAXARGS];
! 569: int nargs = 0;
! 570: db_expr_t retval;
! 571: db_expr_t (*func)(db_expr_t, ...);
! 572: int t;
! 573:
! 574: if (!db_expression(&fn_addr)) {
! 575: db_printf("Bad function\n");
! 576: db_flush_lex();
! 577: return;
! 578: }
! 579: func = (db_expr_t (*)(db_expr_t, ...)) fn_addr;
! 580:
! 581: t = db_read_token();
! 582: if (t == tLPAREN) {
! 583: if (db_expression(&args[0])) {
! 584: nargs++;
! 585: while ((t = db_read_token()) == tCOMMA) {
! 586: if (nargs == MAXARGS) {
! 587: db_printf("Too many arguments\n");
! 588: db_flush_lex();
! 589: return;
! 590: }
! 591: if (!db_expression(&args[nargs])) {
! 592: db_printf("Argument missing\n");
! 593: db_flush_lex();
! 594: return;
! 595: }
! 596: nargs++;
! 597: }
! 598: db_unread_token(t);
! 599: }
! 600: if (db_read_token() != tRPAREN) {
! 601: db_printf("?\n");
! 602: db_flush_lex();
! 603: return;
! 604: }
! 605: }
! 606: db_skip_to_eol();
! 607:
! 608: while (nargs < MAXARGS) {
! 609: args[nargs++] = 0;
! 610: }
! 611:
! 612: retval = (*func)(args[0], args[1], args[2], args[3], args[4],
! 613: args[5], args[6], args[7], args[8], args[9]);
! 614: db_printf("%#n\n", retval);
! 615: }
! 616:
! 617: void
! 618: db_boot_sync_cmd(db_expr_t addr, int haddr, db_expr_t count, char *modif)
! 619: {
! 620: boot(RB_AUTOBOOT | RB_TIMEBAD | RB_USERREQ);
! 621: }
! 622:
! 623: void
! 624: db_boot_crash_cmd(db_expr_t addr, int haddr, db_expr_t count, char *modif)
! 625: {
! 626: boot(RB_NOSYNC | RB_DUMP | RB_TIMEBAD | RB_USERREQ);
! 627: }
! 628:
! 629: void
! 630: db_boot_dump_cmd(db_expr_t addr, int haddr, db_expr_t count, char *modif)
! 631: {
! 632: boot(RB_DUMP | RB_TIMEBAD | RB_USERREQ);
! 633: }
! 634:
! 635: void
! 636: db_boot_halt_cmd(db_expr_t addr, int haddr, db_expr_t count, char *modif)
! 637: {
! 638: boot(RB_NOSYNC | RB_HALT | RB_TIMEBAD | RB_USERREQ);
! 639: }
! 640:
! 641: void
! 642: db_boot_reboot_cmd(db_expr_t addr, int haddr, db_expr_t count, char *modif)
! 643: {
! 644: boot(RB_AUTOBOOT | RB_NOSYNC | RB_TIMEBAD | RB_USERREQ);
! 645: }
! 646:
! 647: void
! 648: db_boot_poweroff_cmd(db_expr_t addr, int haddr, db_expr_t count, char *modif)
! 649: {
! 650: boot(RB_NOSYNC | RB_HALT | RB_POWERDOWN | RB_TIMEBAD | RB_USERREQ);
! 651: }
! 652:
! 653: void
! 654: db_dmesg_cmd(db_expr_t addr, int haddr, db_expr_t count, char *modif)
! 655: {
! 656: int i, off;
! 657: char *p;
! 658:
! 659: if (!msgbufp || msgbufp->msg_magic != MSG_MAGIC)
! 660: return;
! 661: off = msgbufp->msg_bufx;
! 662: if (off > msgbufp->msg_bufs)
! 663: off = 0;
! 664: for (i = 0, p = msgbufp->msg_bufc + off;
! 665: i < msgbufp->msg_bufs; i++, p++) {
! 666: if (p >= msgbufp->msg_bufc + msgbufp->msg_bufs)
! 667: p = msgbufp->msg_bufc;
! 668: if (*p != '\0')
! 669: db_putchar(*p);
! 670: }
! 671: db_putchar('\n');
! 672: }
! 673:
! 674: void
! 675: db_stack_trace_cmd(db_expr_t addr, boolean_t have_addr, db_expr_t count,
! 676: char *modif)
! 677: {
! 678: db_stack_trace_print(addr, have_addr, count, modif, db_printf);
! 679: }
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