1 /* vi:set ts=8 sts=4 sw=4 noet: 2 * 3 * VIM - Vi IMproved by Bram Moolenaar 4 * 5 * Do ":help uganda" in Vim to read copying and usage conditions. 6 * Do ":help credits" in Vim to see a list of people who contributed. 7 * See README.txt for an overview of the Vim source code. 8 */ 9 10 /* 11 * debugger.c: Vim script debugger functions 12 */ 13 14 #include "vim.h" 15 16 #if defined(FEAT_EVAL) || defined(PROTO) 17 static int debug_greedy = FALSE; // batch mode debugging: don't save 18 // and restore typeahead. 19 static void do_setdebugtracelevel(char_u *arg); 20 static void do_checkbacktracelevel(void); 21 static void do_showbacktrace(char_u *cmd); 22 23 static char_u *debug_oldval = NULL; // old and newval for debug expressions 24 static char_u *debug_newval = NULL; 25 static int debug_expr = 0; // use debug_expr 26 27 int 28 has_watchexpr(void) 29 { 30 return debug_expr; 31 } 32 33 /* 34 * do_debug(): Debug mode. 35 * Repeatedly get Ex commands, until told to continue normal execution. 36 */ 37 void 38 do_debug(char_u *cmd) 39 { 40 int save_msg_scroll = msg_scroll; 41 int save_State = State; 42 int save_did_emsg = did_emsg; 43 int save_cmd_silent = cmd_silent; 44 int save_msg_silent = msg_silent; 45 int save_emsg_silent = emsg_silent; 46 int save_redir_off = redir_off; 47 tasave_T typeaheadbuf; 48 int typeahead_saved = FALSE; 49 int save_ignore_script = 0; 50 int save_ex_normal_busy; 51 int n; 52 char_u *cmdline = NULL; 53 char_u *p; 54 char_u *sname; 55 char *tail = NULL; 56 static int last_cmd = 0; 57 #define CMD_CONT 1 58 #define CMD_NEXT 2 59 #define CMD_STEP 3 60 #define CMD_FINISH 4 61 #define CMD_QUIT 5 62 #define CMD_INTERRUPT 6 63 #define CMD_BACKTRACE 7 64 #define CMD_FRAME 8 65 #define CMD_UP 9 66 #define CMD_DOWN 10 67 68 #ifdef ALWAYS_USE_GUI 69 // Can't do this when there is no terminal for input/output. 70 if (!gui.in_use) 71 { 72 // Break as soon as possible. 73 debug_break_level = 9999; 74 return; 75 } 76 #endif 77 78 // Make sure we are in raw mode and start termcap mode. Might have side 79 // effects... 80 settmode(TMODE_RAW); 81 starttermcap(); 82 83 ++RedrawingDisabled; // don't redisplay the window 84 ++no_wait_return; // don't wait for return 85 did_emsg = FALSE; // don't use error from debugged stuff 86 cmd_silent = FALSE; // display commands 87 msg_silent = FALSE; // display messages 88 emsg_silent = FALSE; // display error messages 89 redir_off = TRUE; // don't redirect debug commands 90 91 State = NORMAL; 92 debug_mode = TRUE; 93 94 if (!debug_did_msg) 95 msg(_("Entering Debug mode. Type \"cont\" to continue.")); 96 if (debug_oldval != NULL) 97 { 98 smsg(_("Oldval = \"%s\""), debug_oldval); 99 vim_free(debug_oldval); 100 debug_oldval = NULL; 101 } 102 if (debug_newval != NULL) 103 { 104 smsg(_("Newval = \"%s\""), debug_newval); 105 vim_free(debug_newval); 106 debug_newval = NULL; 107 } 108 sname = estack_sfile(ESTACK_NONE); 109 if (sname != NULL) 110 msg((char *)sname); 111 vim_free(sname); 112 if (SOURCING_LNUM != 0) 113 smsg(_("line %ld: %s"), SOURCING_LNUM, cmd); 114 else 115 smsg(_("cmd: %s"), cmd); 116 117 // Repeat getting a command and executing it. 118 for (;;) 119 { 120 msg_scroll = TRUE; 121 need_wait_return = FALSE; 122 123 // Save the current typeahead buffer and replace it with an empty one. 124 // This makes sure we get input from the user here and don't interfere 125 // with the commands being executed. Reset "ex_normal_busy" to avoid 126 // the side effects of using ":normal". Save the stuff buffer and make 127 // it empty. Set ignore_script to avoid reading from script input. 128 save_ex_normal_busy = ex_normal_busy; 129 ex_normal_busy = 0; 130 if (!debug_greedy) 131 { 132 save_typeahead(&typeaheadbuf); 133 typeahead_saved = TRUE; 134 save_ignore_script = ignore_script; 135 ignore_script = TRUE; 136 } 137 138 vim_free(cmdline); 139 cmdline = getcmdline_prompt('>', NULL, 0, EXPAND_NOTHING, NULL); 140 141 if (typeahead_saved) 142 { 143 restore_typeahead(&typeaheadbuf, TRUE); 144 ignore_script = save_ignore_script; 145 } 146 ex_normal_busy = save_ex_normal_busy; 147 148 cmdline_row = msg_row; 149 msg_starthere(); 150 if (cmdline != NULL) 151 { 152 // If this is a debug command, set "last_cmd". 153 // If not, reset "last_cmd". 154 // For a blank line use previous command. 155 p = skipwhite(cmdline); 156 if (*p != NUL) 157 { 158 switch (*p) 159 { 160 case 'c': last_cmd = CMD_CONT; 161 tail = "ont"; 162 break; 163 case 'n': last_cmd = CMD_NEXT; 164 tail = "ext"; 165 break; 166 case 's': last_cmd = CMD_STEP; 167 tail = "tep"; 168 break; 169 case 'f': 170 last_cmd = 0; 171 if (p[1] == 'r') 172 { 173 last_cmd = CMD_FRAME; 174 tail = "rame"; 175 } 176 else 177 { 178 last_cmd = CMD_FINISH; 179 tail = "inish"; 180 } 181 break; 182 case 'q': last_cmd = CMD_QUIT; 183 tail = "uit"; 184 break; 185 case 'i': last_cmd = CMD_INTERRUPT; 186 tail = "nterrupt"; 187 break; 188 case 'b': last_cmd = CMD_BACKTRACE; 189 if (p[1] == 't') 190 tail = "t"; 191 else 192 tail = "acktrace"; 193 break; 194 case 'w': last_cmd = CMD_BACKTRACE; 195 tail = "here"; 196 break; 197 case 'u': last_cmd = CMD_UP; 198 tail = "p"; 199 break; 200 case 'd': last_cmd = CMD_DOWN; 201 tail = "own"; 202 break; 203 default: last_cmd = 0; 204 } 205 if (last_cmd != 0) 206 { 207 // Check that the tail matches. 208 ++p; 209 while (*p != NUL && *p == *tail) 210 { 211 ++p; 212 ++tail; 213 } 214 if (ASCII_ISALPHA(*p) && last_cmd != CMD_FRAME) 215 last_cmd = 0; 216 } 217 } 218 219 if (last_cmd != 0) 220 { 221 // Execute debug command: decide where to break next and 222 // return. 223 switch (last_cmd) 224 { 225 case CMD_CONT: 226 debug_break_level = -1; 227 break; 228 case CMD_NEXT: 229 debug_break_level = ex_nesting_level; 230 break; 231 case CMD_STEP: 232 debug_break_level = 9999; 233 break; 234 case CMD_FINISH: 235 debug_break_level = ex_nesting_level - 1; 236 break; 237 case CMD_QUIT: 238 got_int = TRUE; 239 debug_break_level = -1; 240 break; 241 case CMD_INTERRUPT: 242 got_int = TRUE; 243 debug_break_level = 9999; 244 // Do not repeat ">interrupt" cmd, continue stepping. 245 last_cmd = CMD_STEP; 246 break; 247 case CMD_BACKTRACE: 248 do_showbacktrace(cmd); 249 continue; 250 case CMD_FRAME: 251 if (*p == NUL) 252 { 253 do_showbacktrace(cmd); 254 } 255 else 256 { 257 p = skipwhite(p); 258 do_setdebugtracelevel(p); 259 } 260 continue; 261 case CMD_UP: 262 debug_backtrace_level++; 263 do_checkbacktracelevel(); 264 continue; 265 case CMD_DOWN: 266 debug_backtrace_level--; 267 do_checkbacktracelevel(); 268 continue; 269 } 270 // Going out reset backtrace_level 271 debug_backtrace_level = 0; 272 break; 273 } 274 275 // don't debug this command 276 n = debug_break_level; 277 debug_break_level = -1; 278 (void)do_cmdline(cmdline, getexline, NULL, 279 DOCMD_VERBOSE|DOCMD_EXCRESET); 280 debug_break_level = n; 281 } 282 lines_left = Rows - 1; 283 } 284 vim_free(cmdline); 285 286 --RedrawingDisabled; 287 --no_wait_return; 288 redraw_all_later(NOT_VALID); 289 need_wait_return = FALSE; 290 msg_scroll = save_msg_scroll; 291 lines_left = Rows - 1; 292 State = save_State; 293 debug_mode = FALSE; 294 did_emsg = save_did_emsg; 295 cmd_silent = save_cmd_silent; 296 msg_silent = save_msg_silent; 297 emsg_silent = save_emsg_silent; 298 redir_off = save_redir_off; 299 300 // Only print the message again when typing a command before coming back 301 // here. 302 debug_did_msg = TRUE; 303 } 304 305 static int 306 get_maxbacktrace_level(char_u *sname) 307 { 308 char *p, *q; 309 int maxbacktrace = 0; 310 311 if (sname != NULL) 312 { 313 p = (char *)sname; 314 while ((q = strstr(p, "..")) != NULL) 315 { 316 p = q + 2; 317 maxbacktrace++; 318 } 319 } 320 return maxbacktrace; 321 } 322 323 static void 324 do_setdebugtracelevel(char_u *arg) 325 { 326 int level; 327 328 level = atoi((char *)arg); 329 if (*arg == '+' || level < 0) 330 debug_backtrace_level += level; 331 else 332 debug_backtrace_level = level; 333 334 do_checkbacktracelevel(); 335 } 336 337 static void 338 do_checkbacktracelevel(void) 339 { 340 if (debug_backtrace_level < 0) 341 { 342 debug_backtrace_level = 0; 343 msg(_("frame is zero")); 344 } 345 else 346 { 347 char_u *sname = estack_sfile(ESTACK_NONE); 348 int max = get_maxbacktrace_level(sname); 349 350 if (debug_backtrace_level > max) 351 { 352 debug_backtrace_level = max; 353 smsg(_("frame at highest level: %d"), max); 354 } 355 vim_free(sname); 356 } 357 } 358 359 static void 360 do_showbacktrace(char_u *cmd) 361 { 362 char_u *sname; 363 char *cur; 364 char *next; 365 int i = 0; 366 int max; 367 368 sname = estack_sfile(ESTACK_NONE); 369 max = get_maxbacktrace_level(sname); 370 if (sname != NULL) 371 { 372 cur = (char *)sname; 373 while (!got_int) 374 { 375 next = strstr(cur, ".."); 376 if (next != NULL) 377 *next = NUL; 378 if (i == max - debug_backtrace_level) 379 smsg("->%d %s", max - i, cur); 380 else 381 smsg(" %d %s", max - i, cur); 382 ++i; 383 if (next == NULL) 384 break; 385 *next = '.'; 386 cur = next + 2; 387 } 388 vim_free(sname); 389 } 390 391 if (SOURCING_LNUM != 0) 392 smsg(_("line %ld: %s"), (long)SOURCING_LNUM, cmd); 393 else 394 smsg(_("cmd: %s"), cmd); 395 } 396 397 /* 398 * ":debug". 399 */ 400 void 401 ex_debug(exarg_T *eap) 402 { 403 int debug_break_level_save = debug_break_level; 404 405 debug_break_level = 9999; 406 do_cmdline_cmd(eap->arg); 407 debug_break_level = debug_break_level_save; 408 } 409 410 static char_u *debug_breakpoint_name = NULL; 411 static linenr_T debug_breakpoint_lnum; 412 413 /* 414 * When debugging or a breakpoint is set on a skipped command, no debug prompt 415 * is shown by do_one_cmd(). This situation is indicated by debug_skipped, and 416 * debug_skipped_name is then set to the source name in the breakpoint case. If 417 * a skipped command decides itself that a debug prompt should be displayed, it 418 * can do so by calling dbg_check_skipped(). 419 */ 420 static int debug_skipped; 421 static char_u *debug_skipped_name; 422 423 /* 424 * Go to debug mode when a breakpoint was encountered or "ex_nesting_level" is 425 * at or below the break level. But only when the line is actually 426 * executed. Return TRUE and set breakpoint_name for skipped commands that 427 * decide to execute something themselves. 428 * Called from do_one_cmd() before executing a command. 429 */ 430 void 431 dbg_check_breakpoint(exarg_T *eap) 432 { 433 char_u *p; 434 435 debug_skipped = FALSE; 436 if (debug_breakpoint_name != NULL) 437 { 438 if (!eap->skip) 439 { 440 // replace K_SNR with "<SNR>" 441 if (debug_breakpoint_name[0] == K_SPECIAL 442 && debug_breakpoint_name[1] == KS_EXTRA 443 && debug_breakpoint_name[2] == (int)KE_SNR) 444 p = (char_u *)"<SNR>"; 445 else 446 p = (char_u *)""; 447 smsg(_("Breakpoint in \"%s%s\" line %ld"), 448 p, 449 debug_breakpoint_name + (*p == NUL ? 0 : 3), 450 (long)debug_breakpoint_lnum); 451 debug_breakpoint_name = NULL; 452 do_debug(eap->cmd); 453 } 454 else 455 { 456 debug_skipped = TRUE; 457 debug_skipped_name = debug_breakpoint_name; 458 debug_breakpoint_name = NULL; 459 } 460 } 461 else if (ex_nesting_level <= debug_break_level) 462 { 463 if (!eap->skip) 464 do_debug(eap->cmd); 465 else 466 { 467 debug_skipped = TRUE; 468 debug_skipped_name = NULL; 469 } 470 } 471 } 472 473 /* 474 * Go to debug mode if skipped by dbg_check_breakpoint() because eap->skip was 475 * set. Return TRUE when the debug mode is entered this time. 476 */ 477 int 478 dbg_check_skipped(exarg_T *eap) 479 { 480 int prev_got_int; 481 482 if (debug_skipped) 483 { 484 // Save the value of got_int and reset it. We don't want a previous 485 // interruption cause flushing the input buffer. 486 prev_got_int = got_int; 487 got_int = FALSE; 488 debug_breakpoint_name = debug_skipped_name; 489 // eap->skip is TRUE 490 eap->skip = FALSE; 491 (void)dbg_check_breakpoint(eap); 492 eap->skip = TRUE; 493 got_int |= prev_got_int; 494 return TRUE; 495 } 496 return FALSE; 497 } 498 499 /* 500 * The list of breakpoints: dbg_breakp. 501 * This is a grow-array of structs. 502 */ 503 struct debuggy 504 { 505 int dbg_nr; // breakpoint number 506 int dbg_type; // DBG_FUNC, DBG_FILE or DBG_EXPR 507 char_u *dbg_name; // function, expression or file name 508 regprog_T *dbg_prog; // regexp program 509 linenr_T dbg_lnum; // line number in function or file 510 int dbg_forceit; // ! used 511 #ifdef FEAT_EVAL 512 typval_T *dbg_val; // last result of watchexpression 513 #endif 514 int dbg_level; // stored nested level for expr 515 }; 516 517 static garray_T dbg_breakp = {0, 0, sizeof(struct debuggy), 4, NULL}; 518 #define BREAKP(idx) (((struct debuggy *)dbg_breakp.ga_data)[idx]) 519 #define DEBUGGY(gap, idx) (((struct debuggy *)gap->ga_data)[idx]) 520 static int last_breakp = 0; // nr of last defined breakpoint 521 static int has_expr_breakpoint = FALSE; 522 523 #ifdef FEAT_PROFILE 524 // Profiling uses file and func names similar to breakpoints. 525 static garray_T prof_ga = {0, 0, sizeof(struct debuggy), 4, NULL}; 526 #endif 527 #define DBG_FUNC 1 528 #define DBG_FILE 2 529 #define DBG_EXPR 3 530 531 static linenr_T debuggy_find(int file,char_u *fname, linenr_T after, garray_T *gap, int *fp); 532 533 /* 534 * Evaluate the "bp->dbg_name" expression and return the result. 535 * Disables error messages. 536 */ 537 static typval_T * 538 eval_expr_no_emsg(struct debuggy *bp) 539 { 540 typval_T *tv; 541 542 // Disable error messages, a bad expression would make Vim unusable. 543 ++emsg_off; 544 tv = eval_expr(bp->dbg_name, NULL); 545 --emsg_off; 546 547 return tv; 548 } 549 550 /* 551 * Parse the arguments of ":profile", ":breakadd" or ":breakdel" and put them 552 * in the entry just after the last one in dbg_breakp. Note that "dbg_name" 553 * is allocated. 554 * Returns FAIL for failure. 555 */ 556 static int 557 dbg_parsearg( 558 char_u *arg, 559 garray_T *gap) // either &dbg_breakp or &prof_ga 560 { 561 char_u *p = arg; 562 char_u *q; 563 struct debuggy *bp; 564 int here = FALSE; 565 566 if (ga_grow(gap, 1) == FAIL) 567 return FAIL; 568 bp = &DEBUGGY(gap, gap->ga_len); 569 570 // Find "func" or "file". 571 if (STRNCMP(p, "func", 4) == 0) 572 bp->dbg_type = DBG_FUNC; 573 else if (STRNCMP(p, "file", 4) == 0) 574 bp->dbg_type = DBG_FILE; 575 else if ( 576 #ifdef FEAT_PROFILE 577 gap != &prof_ga && 578 #endif 579 STRNCMP(p, "here", 4) == 0) 580 { 581 if (curbuf->b_ffname == NULL) 582 { 583 emsg(_(e_no_file_name)); 584 return FAIL; 585 } 586 bp->dbg_type = DBG_FILE; 587 here = TRUE; 588 } 589 else if ( 590 #ifdef FEAT_PROFILE 591 gap != &prof_ga && 592 #endif 593 STRNCMP(p, "expr", 4) == 0) 594 bp->dbg_type = DBG_EXPR; 595 else 596 { 597 semsg(_(e_invarg2), p); 598 return FAIL; 599 } 600 p = skipwhite(p + 4); 601 602 // Find optional line number. 603 if (here) 604 bp->dbg_lnum = curwin->w_cursor.lnum; 605 else if ( 606 #ifdef FEAT_PROFILE 607 gap != &prof_ga && 608 #endif 609 VIM_ISDIGIT(*p)) 610 { 611 bp->dbg_lnum = getdigits(&p); 612 p = skipwhite(p); 613 } 614 else 615 bp->dbg_lnum = 0; 616 617 // Find the function or file name. Don't accept a function name with (). 618 if ((!here && *p == NUL) 619 || (here && *p != NUL) 620 || (bp->dbg_type == DBG_FUNC && strstr((char *)p, "()") != NULL)) 621 { 622 semsg(_(e_invarg2), arg); 623 return FAIL; 624 } 625 626 if (bp->dbg_type == DBG_FUNC) 627 bp->dbg_name = vim_strsave(STRNCMP(p, "g:", 2) == 0 ? p + 2 : p); 628 else if (here) 629 bp->dbg_name = vim_strsave(curbuf->b_ffname); 630 else if (bp->dbg_type == DBG_EXPR) 631 { 632 bp->dbg_name = vim_strsave(p); 633 if (bp->dbg_name != NULL) 634 bp->dbg_val = eval_expr_no_emsg(bp); 635 } 636 else 637 { 638 // Expand the file name in the same way as do_source(). This means 639 // doing it twice, so that $DIR/file gets expanded when $DIR is 640 // "~/dir". 641 q = expand_env_save(p); 642 if (q == NULL) 643 return FAIL; 644 p = expand_env_save(q); 645 vim_free(q); 646 if (p == NULL) 647 return FAIL; 648 if (*p != '*') 649 { 650 bp->dbg_name = fix_fname(p); 651 vim_free(p); 652 } 653 else 654 bp->dbg_name = p; 655 } 656 657 if (bp->dbg_name == NULL) 658 return FAIL; 659 return OK; 660 } 661 662 /* 663 * ":breakadd". Also used for ":profile". 664 */ 665 void 666 ex_breakadd(exarg_T *eap) 667 { 668 struct debuggy *bp; 669 char_u *pat; 670 garray_T *gap; 671 672 gap = &dbg_breakp; 673 #ifdef FEAT_PROFILE 674 if (eap->cmdidx == CMD_profile) 675 gap = &prof_ga; 676 #endif 677 678 if (dbg_parsearg(eap->arg, gap) == OK) 679 { 680 bp = &DEBUGGY(gap, gap->ga_len); 681 bp->dbg_forceit = eap->forceit; 682 683 if (bp->dbg_type != DBG_EXPR) 684 { 685 pat = file_pat_to_reg_pat(bp->dbg_name, NULL, NULL, FALSE); 686 if (pat != NULL) 687 { 688 bp->dbg_prog = vim_regcomp(pat, RE_MAGIC + RE_STRING); 689 vim_free(pat); 690 } 691 if (pat == NULL || bp->dbg_prog == NULL) 692 vim_free(bp->dbg_name); 693 else 694 { 695 if (bp->dbg_lnum == 0) // default line number is 1 696 bp->dbg_lnum = 1; 697 #ifdef FEAT_PROFILE 698 if (eap->cmdidx != CMD_profile) 699 #endif 700 { 701 DEBUGGY(gap, gap->ga_len).dbg_nr = ++last_breakp; 702 ++debug_tick; 703 } 704 ++gap->ga_len; 705 } 706 } 707 else 708 { 709 // DBG_EXPR 710 DEBUGGY(gap, gap->ga_len++).dbg_nr = ++last_breakp; 711 ++debug_tick; 712 if (gap == &dbg_breakp) 713 has_expr_breakpoint = TRUE; 714 } 715 } 716 } 717 718 /* 719 * ":debuggreedy". 720 */ 721 void 722 ex_debuggreedy(exarg_T *eap) 723 { 724 if (eap->addr_count == 0 || eap->line2 != 0) 725 debug_greedy = TRUE; 726 else 727 debug_greedy = FALSE; 728 } 729 730 static void 731 update_has_expr_breakpoint() 732 { 733 int i; 734 735 has_expr_breakpoint = FALSE; 736 for (i = 0; i < dbg_breakp.ga_len; ++i) 737 if (BREAKP(i).dbg_type == DBG_EXPR) 738 { 739 has_expr_breakpoint = TRUE; 740 break; 741 } 742 } 743 744 /* 745 * Return TRUE if there is any expression breakpoint. 746 */ 747 int 748 debug_has_expr_breakpoint() 749 { 750 return has_expr_breakpoint; 751 } 752 753 /* 754 * ":breakdel" and ":profdel". 755 */ 756 void 757 ex_breakdel(exarg_T *eap) 758 { 759 struct debuggy *bp, *bpi; 760 int nr; 761 int todel = -1; 762 int del_all = FALSE; 763 int i; 764 linenr_T best_lnum = 0; 765 garray_T *gap; 766 767 gap = &dbg_breakp; 768 if (eap->cmdidx == CMD_profdel) 769 { 770 #ifdef FEAT_PROFILE 771 gap = &prof_ga; 772 #else 773 ex_ni(eap); 774 return; 775 #endif 776 } 777 778 if (vim_isdigit(*eap->arg)) 779 { 780 // ":breakdel {nr}" 781 nr = atol((char *)eap->arg); 782 for (i = 0; i < gap->ga_len; ++i) 783 if (DEBUGGY(gap, i).dbg_nr == nr) 784 { 785 todel = i; 786 break; 787 } 788 } 789 else if (*eap->arg == '*') 790 { 791 todel = 0; 792 del_all = TRUE; 793 } 794 else 795 { 796 // ":breakdel {func|file|expr} [lnum] {name}" 797 if (dbg_parsearg(eap->arg, gap) == FAIL) 798 return; 799 bp = &DEBUGGY(gap, gap->ga_len); 800 for (i = 0; i < gap->ga_len; ++i) 801 { 802 bpi = &DEBUGGY(gap, i); 803 if (bp->dbg_type == bpi->dbg_type 804 && STRCMP(bp->dbg_name, bpi->dbg_name) == 0 805 && (bp->dbg_lnum == bpi->dbg_lnum 806 || (bp->dbg_lnum == 0 807 && (best_lnum == 0 808 || bpi->dbg_lnum < best_lnum)))) 809 { 810 todel = i; 811 best_lnum = bpi->dbg_lnum; 812 } 813 } 814 vim_free(bp->dbg_name); 815 } 816 817 if (todel < 0) 818 semsg(_("E161: Breakpoint not found: %s"), eap->arg); 819 else 820 { 821 while (gap->ga_len > 0) 822 { 823 vim_free(DEBUGGY(gap, todel).dbg_name); 824 #ifdef FEAT_EVAL 825 if (DEBUGGY(gap, todel).dbg_type == DBG_EXPR 826 && DEBUGGY(gap, todel).dbg_val != NULL) 827 free_tv(DEBUGGY(gap, todel).dbg_val); 828 #endif 829 vim_regfree(DEBUGGY(gap, todel).dbg_prog); 830 --gap->ga_len; 831 if (todel < gap->ga_len) 832 mch_memmove(&DEBUGGY(gap, todel), &DEBUGGY(gap, todel + 1), 833 (gap->ga_len - todel) * sizeof(struct debuggy)); 834 #ifdef FEAT_PROFILE 835 if (eap->cmdidx == CMD_breakdel) 836 #endif 837 ++debug_tick; 838 if (!del_all) 839 break; 840 } 841 842 // If all breakpoints were removed clear the array. 843 if (gap->ga_len == 0) 844 ga_clear(gap); 845 if (gap == &dbg_breakp) 846 update_has_expr_breakpoint(); 847 } 848 } 849 850 /* 851 * ":breaklist". 852 */ 853 void 854 ex_breaklist(exarg_T *eap UNUSED) 855 { 856 struct debuggy *bp; 857 int i; 858 859 if (dbg_breakp.ga_len == 0) 860 msg(_("No breakpoints defined")); 861 else 862 for (i = 0; i < dbg_breakp.ga_len; ++i) 863 { 864 bp = &BREAKP(i); 865 if (bp->dbg_type == DBG_FILE) 866 home_replace(NULL, bp->dbg_name, NameBuff, MAXPATHL, TRUE); 867 if (bp->dbg_type != DBG_EXPR) 868 smsg(_("%3d %s %s line %ld"), 869 bp->dbg_nr, 870 bp->dbg_type == DBG_FUNC ? "func" : "file", 871 bp->dbg_type == DBG_FUNC ? bp->dbg_name : NameBuff, 872 (long)bp->dbg_lnum); 873 else 874 smsg(_("%3d expr %s"), 875 bp->dbg_nr, bp->dbg_name); 876 } 877 } 878 879 /* 880 * Find a breakpoint for a function or sourced file. 881 * Returns line number at which to break; zero when no matching breakpoint. 882 */ 883 linenr_T 884 dbg_find_breakpoint( 885 int file, // TRUE for a file, FALSE for a function 886 char_u *fname, // file or function name 887 linenr_T after) // after this line number 888 { 889 return debuggy_find(file, fname, after, &dbg_breakp, NULL); 890 } 891 892 #if defined(FEAT_PROFILE) || defined(PROTO) 893 /* 894 * Return TRUE if profiling is on for a function or sourced file. 895 */ 896 int 897 has_profiling( 898 int file, // TRUE for a file, FALSE for a function 899 char_u *fname, // file or function name 900 int *fp) // return: forceit 901 { 902 return (debuggy_find(file, fname, (linenr_T)0, &prof_ga, fp) 903 != (linenr_T)0); 904 } 905 #endif 906 907 /* 908 * Common code for dbg_find_breakpoint() and has_profiling(). 909 */ 910 static linenr_T 911 debuggy_find( 912 int is_file, // TRUE for a file, FALSE for a function 913 char_u *fname, // file or function name 914 linenr_T after, // after this line number 915 garray_T *gap, // either &dbg_breakp or &prof_ga 916 int *fp) // if not NULL: return forceit 917 { 918 struct debuggy *bp; 919 int i; 920 linenr_T lnum = 0; 921 char_u *name = NULL; 922 char_u *short_name = fname; 923 int prev_got_int; 924 925 // Return quickly when there are no breakpoints. 926 if (gap->ga_len == 0) 927 return (linenr_T)0; 928 929 // For a script-local function remove the prefix, so that 930 // "profile func Func" matches "Func" in any script. Otherwise it's very 931 // difficult to profile/debug a script-local function. It may match a 932 // function in the wrong script, but that is much better than not being 933 // able to profile/debug a function in a script with unknown ID. 934 // Also match a script-specific name. 935 if (!is_file && fname[0] == K_SPECIAL) 936 { 937 short_name = vim_strchr(fname, '_') + 1; 938 name = alloc(STRLEN(fname) + 3); 939 if (name != NULL) 940 { 941 STRCPY(name, "<SNR>"); 942 STRCPY(name + 5, fname + 3); 943 } 944 } 945 946 for (i = 0; i < gap->ga_len; ++i) 947 { 948 // Skip entries that are not useful or are for a line that is beyond 949 // an already found breakpoint. 950 bp = &DEBUGGY(gap, i); 951 if (((bp->dbg_type == DBG_FILE) == is_file 952 && bp->dbg_type != DBG_EXPR && ( 953 #ifdef FEAT_PROFILE 954 gap == &prof_ga || 955 #endif 956 (bp->dbg_lnum > after && (lnum == 0 || bp->dbg_lnum < lnum))))) 957 { 958 // Save the value of got_int and reset it. We don't want a 959 // previous interruption cancel matching, only hitting CTRL-C 960 // while matching should abort it. 961 prev_got_int = got_int; 962 got_int = FALSE; 963 if ((name != NULL 964 && vim_regexec_prog(&bp->dbg_prog, FALSE, name, (colnr_T)0)) 965 || vim_regexec_prog(&bp->dbg_prog, FALSE, 966 short_name, (colnr_T)0)) 967 { 968 lnum = bp->dbg_lnum; 969 if (fp != NULL) 970 *fp = bp->dbg_forceit; 971 } 972 got_int |= prev_got_int; 973 } 974 #ifdef FEAT_EVAL 975 else if (bp->dbg_type == DBG_EXPR) 976 { 977 typval_T *tv; 978 int line = FALSE; 979 980 tv = eval_expr_no_emsg(bp); 981 if (tv != NULL) 982 { 983 if (bp->dbg_val == NULL) 984 { 985 debug_oldval = typval_tostring(NULL, TRUE); 986 bp->dbg_val = tv; 987 debug_newval = typval_tostring(bp->dbg_val, TRUE); 988 line = TRUE; 989 } 990 else 991 { 992 if (typval_compare(tv, bp->dbg_val, EXPR_IS, FALSE) == OK 993 && tv->vval.v_number == FALSE) 994 { 995 typval_T *v; 996 997 line = TRUE; 998 debug_oldval = typval_tostring(bp->dbg_val, TRUE); 999 // Need to evaluate again, typval_compare() overwrites 1000 // "tv". 1001 v = eval_expr_no_emsg(bp); 1002 debug_newval = typval_tostring(v, TRUE); 1003 free_tv(bp->dbg_val); 1004 bp->dbg_val = v; 1005 } 1006 free_tv(tv); 1007 } 1008 } 1009 else if (bp->dbg_val != NULL) 1010 { 1011 debug_oldval = typval_tostring(bp->dbg_val, TRUE); 1012 debug_newval = typval_tostring(NULL, TRUE); 1013 free_tv(bp->dbg_val); 1014 bp->dbg_val = NULL; 1015 line = TRUE; 1016 } 1017 1018 if (line) 1019 { 1020 lnum = after > 0 ? after : 1; 1021 break; 1022 } 1023 } 1024 #endif 1025 } 1026 if (name != fname) 1027 vim_free(name); 1028 1029 return lnum; 1030 } 1031 1032 /* 1033 * Called when a breakpoint was encountered. 1034 */ 1035 void 1036 dbg_breakpoint(char_u *name, linenr_T lnum) 1037 { 1038 // We need to check if this line is actually executed in do_one_cmd() 1039 debug_breakpoint_name = name; 1040 debug_breakpoint_lnum = lnum; 1041 } 1042 #endif 1043