1/* Output generating routines for GDB. 2 3 Copyright 1999, 2000, 2001, 2002, 2004 Free Software Foundation, Inc. 4 5 Contributed by Cygnus Solutions. 6 Written by Fernando Nasser for Cygnus. 7 8 This file is part of GDB. 9 10 This program is free software; you can redistribute it and/or modify 11 it under the terms of the GNU General Public License as published by 12 the Free Software Foundation; either version 2 of the License, or 13 (at your option) any later version. 14 15 This program is distributed in the hope that it will be useful, 16 but WITHOUT ANY WARRANTY; without even the implied warranty of 17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 18 GNU General Public License for more details. 19 20 You should have received a copy of the GNU General Public License 21 along with this program; if not, write to the Free Software 22 Foundation, Inc., 59 Temple Place - Suite 330, 23 Boston, MA 02111-1307, USA. */ 24 25#include "defs.h" 26#include "gdb_string.h" 27#include "expression.h" /* For language.h */ 28#include "language.h" 29#include "ui-out.h" 30#include "gdb_assert.h" 31 32/* table header structures */ 33 34struct ui_out_hdr 35 { 36 int colno; 37 int width; 38 int alignment; 39 char *col_name; 40 char *colhdr; 41 struct ui_out_hdr *next; 42 }; 43 44/* Maintain a stack so that the info applicable to the inner most list 45 is always available. Stack/nested level 0 is reserved for the 46 top-level result. */ 47 48enum { MAX_UI_OUT_LEVELS = 6 }; 49 50struct ui_out_level 51 { 52 /* Count each field; the first element is for non-list fields */ 53 int field_count; 54 /* The type of this level. */ 55 enum ui_out_type type; 56 }; 57 58/* Tables are special. Maintain a separate structure that tracks 59 their state. At present an output can only contain a single table 60 but that restriction might eventually be lifted. */ 61 62struct ui_out_table 63{ 64 /* If on, a table is being generated. */ 65 int flag; 66 67 /* If on, the body of a table is being generated. If off, the table 68 header is being generated. */ 69 int body_flag; 70 71 /* The level at which each entry of the table is to be found. A row 72 (a tuple) is made up of entries. Consequently ENTRY_LEVEL is one 73 above that of the table. */ 74 int entry_level; 75 76 /* Number of table columns (as specified in the table_begin call). */ 77 int columns; 78 79 /* String identifying the table (as specified in the table_begin 80 call). */ 81 char *id; 82 83 /* Points to the first table header (if any). */ 84 struct ui_out_hdr *header_first; 85 86 /* Points to the last table header (if any). */ 87 struct ui_out_hdr *header_last; 88 89 /* Points to header of NEXT column to format. */ 90 struct ui_out_hdr *header_next; 91 92}; 93 94 95/* The ui_out structure */ 96/* Any change here requires a corresponding one in the initialization 97 of the default uiout, which is statically initialized */ 98 99struct ui_out 100 { 101 int flags; 102 /* specific implementation of ui-out */ 103 struct ui_out_impl *impl; 104 struct ui_out_data *data; 105 106 /* Sub structure tracking the ui-out depth. */ 107 int level; 108 struct ui_out_level levels[MAX_UI_OUT_LEVELS]; 109 110 /* A table, if any. At present only a single table is supported. */ 111 struct ui_out_table table; 112 }; 113 114/* The current (inner most) level. */ 115static struct ui_out_level * 116current_level (struct ui_out *uiout) 117{ 118 return &uiout->levels[uiout->level]; 119} 120 121/* Create a new level, of TYPE. Return the new level's index. */ 122static int 123push_level (struct ui_out *uiout, 124 enum ui_out_type type, 125 const char *id) 126{ 127 struct ui_out_level *current; 128 /* We had better not overflow the buffer. */ 129 uiout->level++; 130 gdb_assert (uiout->level >= 0 && uiout->level < MAX_UI_OUT_LEVELS); 131 current = current_level (uiout); 132 current->field_count = 0; 133 current->type = type; 134 return uiout->level; 135} 136 137/* Discard the current level, return the discarded level's index. 138 TYPE is the type of the level being discarded. */ 139static int 140pop_level (struct ui_out *uiout, 141 enum ui_out_type type) 142{ 143 /* We had better not underflow the buffer. */ 144 gdb_assert (uiout->level > 0 && uiout->level < MAX_UI_OUT_LEVELS); 145 gdb_assert (current_level (uiout)->type == type); 146 uiout->level--; 147 return uiout->level + 1; 148} 149 150 151/* These are the default implementation functions */ 152 153static void default_table_begin (struct ui_out *uiout, int nbrofcols, 154 int nr_rows, const char *tblid); 155static void default_table_body (struct ui_out *uiout); 156static void default_table_end (struct ui_out *uiout); 157static void default_table_header (struct ui_out *uiout, int width, 158 enum ui_align alig, const char *col_name, 159 const char *colhdr); 160static void default_begin (struct ui_out *uiout, 161 enum ui_out_type type, 162 int level, const char *id); 163static void default_end (struct ui_out *uiout, 164 enum ui_out_type type, 165 int level); 166static void default_field_int (struct ui_out *uiout, int fldno, int width, 167 enum ui_align alig, 168 const char *fldname, 169 int value); 170static void default_field_skip (struct ui_out *uiout, int fldno, int width, 171 enum ui_align alig, 172 const char *fldname); 173static void default_field_string (struct ui_out *uiout, int fldno, int width, 174 enum ui_align align, 175 const char *fldname, 176 const char *string); 177static void default_field_fmt (struct ui_out *uiout, int fldno, 178 int width, enum ui_align align, 179 const char *fldname, 180 const char *format, 181 va_list args); 182static void default_spaces (struct ui_out *uiout, int numspaces); 183static void default_text (struct ui_out *uiout, const char *string); 184static void default_message (struct ui_out *uiout, int verbosity, 185 const char *format, 186 va_list args); 187static void default_wrap_hint (struct ui_out *uiout, char *identstring); 188static void default_flush (struct ui_out *uiout); 189 190/* This is the default ui-out implementation functions vector */ 191 192struct ui_out_impl default_ui_out_impl = 193{ 194 default_table_begin, 195 default_table_body, 196 default_table_end, 197 default_table_header, 198 default_begin, 199 default_end, 200 default_field_int, 201 default_field_skip, 202 default_field_string, 203 default_field_fmt, 204 default_spaces, 205 default_text, 206 default_message, 207 default_wrap_hint, 208 default_flush, 209 NULL, 210 0, /* Does not need MI hacks. */ 211}; 212 213/* The default ui_out */ 214 215struct ui_out def_uiout = 216{ 217 0, /* flags */ 218 &default_ui_out_impl, /* impl */ 219}; 220 221/* Pointer to current ui_out */ 222/* FIXME: This should not be a global, but something passed down from main.c 223 or top.c */ 224 225struct ui_out *uiout = &def_uiout; 226 227/* These are the interfaces to implementation functions */ 228 229static void uo_table_begin (struct ui_out *uiout, int nbrofcols, 230 int nr_rows, const char *tblid); 231static void uo_table_body (struct ui_out *uiout); 232static void uo_table_end (struct ui_out *uiout); 233static void uo_table_header (struct ui_out *uiout, int width, 234 enum ui_align align, const char *col_name, 235 const char *colhdr); 236static void uo_begin (struct ui_out *uiout, 237 enum ui_out_type type, 238 int level, const char *id); 239static void uo_end (struct ui_out *uiout, 240 enum ui_out_type type, 241 int level); 242static void uo_field_int (struct ui_out *uiout, int fldno, int width, 243 enum ui_align align, const char *fldname, int value); 244static void uo_field_skip (struct ui_out *uiout, int fldno, int width, 245 enum ui_align align, const char *fldname); 246static void uo_field_string (struct ui_out *uiout, int fldno, int width, 247 enum ui_align align, const char *fldname, 248 const char *string); 249static void uo_field_fmt (struct ui_out *uiout, int fldno, int width, 250 enum ui_align align, const char *fldname, 251 const char *format, va_list args); 252static void uo_spaces (struct ui_out *uiout, int numspaces); 253static void uo_text (struct ui_out *uiout, const char *string); 254static void uo_message (struct ui_out *uiout, int verbosity, 255 const char *format, va_list args); 256static void uo_wrap_hint (struct ui_out *uiout, char *identstring); 257static void uo_flush (struct ui_out *uiout); 258static int uo_redirect (struct ui_out *uiout, struct ui_file *outstream); 259 260/* Prototypes for local functions */ 261 262extern void _initialize_ui_out (void); 263static void append_header_to_list (struct ui_out *uiout, int width, 264 int alignment, const char *col_name, 265 const char *colhdr); 266static int get_next_header (struct ui_out *uiout, int *colno, int *width, 267 int *alignment, char **colhdr); 268static void clear_header_list (struct ui_out *uiout); 269static void verify_field (struct ui_out *uiout, int *fldno, int *width, 270 int *align); 271 272/* exported functions (ui_out API) */ 273 274/* Mark beginning of a table */ 275 276static void 277ui_out_table_begin (struct ui_out *uiout, int nbrofcols, 278 int nr_rows, 279 const char *tblid) 280{ 281 if (uiout->table.flag) 282 internal_error (__FILE__, __LINE__, 283 "tables cannot be nested; table_begin found before \ 284previous table_end."); 285 286 uiout->table.flag = 1; 287 uiout->table.body_flag = 0; 288 uiout->table.entry_level = uiout->level + 1; 289 uiout->table.columns = nbrofcols; 290 if (tblid != NULL) 291 uiout->table.id = xstrdup (tblid); 292 else 293 uiout->table.id = NULL; 294 clear_header_list (uiout); 295 296 uo_table_begin (uiout, nbrofcols, nr_rows, uiout->table.id); 297} 298 299void 300ui_out_table_body (struct ui_out *uiout) 301{ 302 if (!uiout->table.flag) 303 internal_error (__FILE__, __LINE__, 304 "table_body outside a table is not valid; it must be \ 305after a table_begin and before a table_end."); 306 if (uiout->table.body_flag) 307 internal_error (__FILE__, __LINE__, 308 "extra table_body call not allowed; there must be \ 309only one table_body after a table_begin and before a table_end."); 310 if (uiout->table.header_next->colno != uiout->table.columns) 311 internal_error (__FILE__, __LINE__, 312 "number of headers differ from number of table \ 313columns."); 314 315 uiout->table.body_flag = 1; 316 uiout->table.header_next = uiout->table.header_first; 317 318 uo_table_body (uiout); 319} 320 321static void 322ui_out_table_end (struct ui_out *uiout) 323{ 324 if (!uiout->table.flag) 325 internal_error (__FILE__, __LINE__, 326 "misplaced table_end or missing table_begin."); 327 328 uiout->table.entry_level = 0; 329 uiout->table.body_flag = 0; 330 uiout->table.flag = 0; 331 332 uo_table_end (uiout); 333 334 if (uiout->table.id) 335 xfree (uiout->table.id); 336 clear_header_list (uiout); 337} 338 339void 340ui_out_table_header (struct ui_out *uiout, int width, enum ui_align alignment, 341 const char *col_name, 342 const char *colhdr) 343{ 344 if (!uiout->table.flag || uiout->table.body_flag) 345 internal_error (__FILE__, __LINE__, 346 "table header must be specified after table_begin \ 347and before table_body."); 348 349 append_header_to_list (uiout, width, alignment, col_name, colhdr); 350 351 uo_table_header (uiout, width, alignment, col_name, colhdr); 352} 353 354static void 355do_cleanup_table_end (void *data) 356{ 357 struct ui_out *ui_out = data; 358 359 ui_out_table_end (ui_out); 360} 361 362struct cleanup * 363make_cleanup_ui_out_table_begin_end (struct ui_out *ui_out, int nr_cols, 364 int nr_rows, const char *tblid) 365{ 366 ui_out_table_begin (ui_out, nr_cols, nr_rows, tblid); 367 return make_cleanup (do_cleanup_table_end, ui_out); 368} 369 370void 371ui_out_begin (struct ui_out *uiout, 372 enum ui_out_type type, 373 const char *id) 374{ 375 int new_level; 376 if (uiout->table.flag && !uiout->table.body_flag) 377 internal_error (__FILE__, __LINE__, 378 "table header or table_body expected; lists must be \ 379specified after table_body."); 380 381 /* Be careful to verify the ``field'' before the new tuple/list is 382 pushed onto the stack. That way the containing list/table/row is 383 verified and not the newly created tuple/list. This verification 384 is needed (at least) for the case where a table row entry 385 contains either a tuple/list. For that case bookkeeping such as 386 updating the column count or advancing to the next heading still 387 needs to be performed. */ 388 { 389 int fldno; 390 int width; 391 int align; 392 verify_field (uiout, &fldno, &width, &align); 393 } 394 395 new_level = push_level (uiout, type, id); 396 397 /* If the push puts us at the same level as a table row entry, we've 398 got a new table row. Put the header pointer back to the start. */ 399 if (uiout->table.body_flag 400 && uiout->table.entry_level == new_level) 401 uiout->table.header_next = uiout->table.header_first; 402 403 uo_begin (uiout, type, new_level, id); 404} 405 406void 407ui_out_end (struct ui_out *uiout, 408 enum ui_out_type type) 409{ 410 int old_level = pop_level (uiout, type); 411 uo_end (uiout, type, old_level); 412} 413 414struct ui_out_end_cleanup_data 415{ 416 struct ui_out *uiout; 417 enum ui_out_type type; 418}; 419 420static void 421do_cleanup_end (void *data) 422{ 423 struct ui_out_end_cleanup_data *end_cleanup_data = data; 424 ui_out_end (end_cleanup_data->uiout, end_cleanup_data->type); 425 xfree (end_cleanup_data); 426} 427 428static struct cleanup * 429make_cleanup_ui_out_end (struct ui_out *uiout, 430 enum ui_out_type type) 431{ 432 struct ui_out_end_cleanup_data *end_cleanup_data; 433 end_cleanup_data = XMALLOC (struct ui_out_end_cleanup_data); 434 end_cleanup_data->uiout = uiout; 435 end_cleanup_data->type = type; 436 return make_cleanup (do_cleanup_end, end_cleanup_data); 437} 438 439struct cleanup * 440make_cleanup_ui_out_tuple_begin_end (struct ui_out *uiout, 441 const char *id) 442{ 443 ui_out_begin (uiout, ui_out_type_tuple, id); 444 return make_cleanup_ui_out_end (uiout, ui_out_type_tuple); 445} 446 447struct cleanup * 448make_cleanup_ui_out_list_begin_end (struct ui_out *uiout, 449 const char *id) 450{ 451 ui_out_begin (uiout, ui_out_type_list, id); 452 return make_cleanup_ui_out_end (uiout, ui_out_type_list); 453} 454 455void 456ui_out_field_int (struct ui_out *uiout, 457 const char *fldname, 458 int value) 459{ 460 int fldno; 461 int width; 462 int align; 463 struct ui_out_level *current = current_level (uiout); 464 465 verify_field (uiout, &fldno, &width, &align); 466 467 uo_field_int (uiout, fldno, width, align, fldname, value); 468} 469 470void 471ui_out_field_fmt_int (struct ui_out *uiout, 472 int input_width, 473 enum ui_align input_align, 474 const char *fldname, 475 int value) 476{ 477 int fldno; 478 int width; 479 int align; 480 struct ui_out_level *current = current_level (uiout); 481 482 verify_field (uiout, &fldno, &width, &align); 483 484 uo_field_int (uiout, fldno, input_width, input_align, fldname, value); 485} 486 487void 488ui_out_field_core_addr (struct ui_out *uiout, 489 const char *fldname, 490 CORE_ADDR address) 491{ 492 char addstr[20]; 493 494 /* FIXME: cagney/2002-05-03: Need local_address_string() function 495 that returns the language localized string formatted to a width 496 based on TARGET_ADDR_BIT. */ 497 /* print_address_numeric (address, 1, local_stream); */ 498 if (TARGET_ADDR_BIT <= 32) 499 strcpy (addstr, local_hex_string_custom (address, "08l")); 500 else 501 strcpy (addstr, local_hex_string_custom (address, "016l")); 502 503 ui_out_field_string (uiout, fldname, addstr); 504} 505 506void 507ui_out_field_stream (struct ui_out *uiout, 508 const char *fldname, 509 struct ui_stream *buf) 510{ 511 long length; 512 char *buffer = ui_file_xstrdup (buf->stream, &length); 513 struct cleanup *old_cleanup = make_cleanup (xfree, buffer); 514 if (length > 0) 515 ui_out_field_string (uiout, fldname, buffer); 516 else 517 ui_out_field_skip (uiout, fldname); 518 ui_file_rewind (buf->stream); 519 do_cleanups (old_cleanup); 520} 521 522/* used to ommit a field */ 523 524void 525ui_out_field_skip (struct ui_out *uiout, 526 const char *fldname) 527{ 528 int fldno; 529 int width; 530 int align; 531 532 verify_field (uiout, &fldno, &width, &align); 533 534 uo_field_skip (uiout, fldno, width, align, fldname); 535} 536 537void 538ui_out_field_string (struct ui_out *uiout, 539 const char *fldname, 540 const char *string) 541{ 542 int fldno; 543 int width; 544 int align; 545 546 verify_field (uiout, &fldno, &width, &align); 547 548 uo_field_string (uiout, fldno, width, align, fldname, string); 549} 550 551/* VARARGS */ 552void 553ui_out_field_fmt (struct ui_out *uiout, 554 const char *fldname, 555 const char *format, ...) 556{ 557 va_list args; 558 int fldno; 559 int width; 560 int align; 561 562 /* will not align, but has to call anyway */ 563 verify_field (uiout, &fldno, &width, &align); 564 565 va_start (args, format); 566 567 uo_field_fmt (uiout, fldno, width, align, fldname, format, args); 568 569 va_end (args); 570} 571 572void 573ui_out_spaces (struct ui_out *uiout, int numspaces) 574{ 575 uo_spaces (uiout, numspaces); 576} 577 578void 579ui_out_text (struct ui_out *uiout, 580 const char *string) 581{ 582 uo_text (uiout, string); 583} 584 585void 586ui_out_message (struct ui_out *uiout, int verbosity, 587 const char *format,...) 588{ 589 va_list args; 590 591 va_start (args, format); 592 593 uo_message (uiout, verbosity, format, args); 594 595 va_end (args); 596} 597 598struct ui_stream * 599ui_out_stream_new (struct ui_out *uiout) 600{ 601 struct ui_stream *tempbuf; 602 603 tempbuf = XMALLOC (struct ui_stream); 604 tempbuf->uiout = uiout; 605 tempbuf->stream = mem_fileopen (); 606 return tempbuf; 607} 608 609void 610ui_out_stream_delete (struct ui_stream *buf) 611{ 612 ui_file_delete (buf->stream); 613 xfree (buf); 614} 615 616static void 617do_stream_delete (void *buf) 618{ 619 ui_out_stream_delete (buf); 620} 621 622struct cleanup * 623make_cleanup_ui_out_stream_delete (struct ui_stream *buf) 624{ 625 return make_cleanup (do_stream_delete, buf); 626} 627 628 629void 630ui_out_wrap_hint (struct ui_out *uiout, char *identstring) 631{ 632 uo_wrap_hint (uiout, identstring); 633} 634 635void 636ui_out_flush (struct ui_out *uiout) 637{ 638 uo_flush (uiout); 639} 640 641int 642ui_out_redirect (struct ui_out *uiout, struct ui_file *outstream) 643{ 644 return uo_redirect (uiout, outstream); 645} 646 647/* set the flags specified by the mask given */ 648int 649ui_out_set_flags (struct ui_out *uiout, int mask) 650{ 651 int oldflags = uiout->flags; 652 653 uiout->flags |= mask; 654 655 return oldflags; 656} 657 658/* clear the flags specified by the mask given */ 659int 660ui_out_clear_flags (struct ui_out *uiout, int mask) 661{ 662 int oldflags = uiout->flags; 663 664 uiout->flags &= ~mask; 665 666 return oldflags; 667} 668 669/* test the flags against the mask given */ 670int 671ui_out_test_flags (struct ui_out *uiout, int mask) 672{ 673 return (uiout->flags & mask); 674} 675 676/* obtain the current verbosity level (as stablished by the 677 'set verbositylevel' command */ 678 679int 680ui_out_get_verblvl (struct ui_out *uiout) 681{ 682 /* FIXME: not implemented yet */ 683 return 0; 684} 685 686#if 0 687void 688ui_out_result_begin (struct ui_out *uiout, char *class) 689{ 690} 691 692void 693ui_out_result_end (struct ui_out *uiout) 694{ 695} 696 697void 698ui_out_info_begin (struct ui_out *uiout, char *class) 699{ 700} 701 702void 703ui_out_info_end (struct ui_out *uiout) 704{ 705} 706 707void 708ui_out_notify_begin (struct ui_out *uiout, char *class) 709{ 710} 711 712void 713ui_out_notify_end (struct ui_out *uiout) 714{ 715} 716 717void 718ui_out_error_begin (struct ui_out *uiout, char *class) 719{ 720} 721 722void 723ui_out_error_end (struct ui_out *uiout) 724{ 725} 726#endif 727 728#if 0 729void 730gdb_error (ui_out * uiout, int severity, char *format,...) 731{ 732 va_list args; 733} 734 735void 736gdb_query (struct ui_out *uiout, int qflags, char *qprompt) 737{ 738} 739#endif 740 741int 742ui_out_is_mi_like_p (struct ui_out *uiout) 743{ 744 return uiout->impl->is_mi_like_p; 745} 746 747/* default gdb-out hook functions */ 748 749static void 750default_table_begin (struct ui_out *uiout, int nbrofcols, 751 int nr_rows, 752 const char *tblid) 753{ 754} 755 756static void 757default_table_body (struct ui_out *uiout) 758{ 759} 760 761static void 762default_table_end (struct ui_out *uiout) 763{ 764} 765 766static void 767default_table_header (struct ui_out *uiout, int width, enum ui_align alignment, 768 const char *col_name, 769 const char *colhdr) 770{ 771} 772 773static void 774default_begin (struct ui_out *uiout, 775 enum ui_out_type type, 776 int level, 777 const char *id) 778{ 779} 780 781static void 782default_end (struct ui_out *uiout, 783 enum ui_out_type type, 784 int level) 785{ 786} 787 788static void 789default_field_int (struct ui_out *uiout, int fldno, int width, 790 enum ui_align align, 791 const char *fldname, int value) 792{ 793} 794 795static void 796default_field_skip (struct ui_out *uiout, int fldno, int width, 797 enum ui_align align, const char *fldname) 798{ 799} 800 801static void 802default_field_string (struct ui_out *uiout, 803 int fldno, 804 int width, 805 enum ui_align align, 806 const char *fldname, 807 const char *string) 808{ 809} 810 811static void 812default_field_fmt (struct ui_out *uiout, int fldno, int width, 813 enum ui_align align, 814 const char *fldname, 815 const char *format, 816 va_list args) 817{ 818} 819 820static void 821default_spaces (struct ui_out *uiout, int numspaces) 822{ 823} 824 825static void 826default_text (struct ui_out *uiout, const char *string) 827{ 828} 829 830static void 831default_message (struct ui_out *uiout, int verbosity, 832 const char *format, 833 va_list args) 834{ 835} 836 837static void 838default_wrap_hint (struct ui_out *uiout, char *identstring) 839{ 840} 841 842static void 843default_flush (struct ui_out *uiout) 844{ 845} 846 847/* Interface to the implementation functions */ 848 849void 850uo_table_begin (struct ui_out *uiout, int nbrofcols, 851 int nr_rows, 852 const char *tblid) 853{ 854 if (!uiout->impl->table_begin) 855 return; 856 uiout->impl->table_begin (uiout, nbrofcols, nr_rows, tblid); 857} 858 859void 860uo_table_body (struct ui_out *uiout) 861{ 862 if (!uiout->impl->table_body) 863 return; 864 uiout->impl->table_body (uiout); 865} 866 867void 868uo_table_end (struct ui_out *uiout) 869{ 870 if (!uiout->impl->table_end) 871 return; 872 uiout->impl->table_end (uiout); 873} 874 875void 876uo_table_header (struct ui_out *uiout, int width, enum ui_align align, 877 const char *col_name, 878 const char *colhdr) 879{ 880 if (!uiout->impl->table_header) 881 return; 882 uiout->impl->table_header (uiout, width, align, col_name, colhdr); 883} 884 885void 886uo_begin (struct ui_out *uiout, 887 enum ui_out_type type, 888 int level, 889 const char *id) 890{ 891 if (uiout->impl->begin == NULL) 892 return; 893 uiout->impl->begin (uiout, type, level, id); 894} 895 896void 897uo_end (struct ui_out *uiout, 898 enum ui_out_type type, 899 int level) 900{ 901 if (uiout->impl->end == NULL) 902 return; 903 uiout->impl->end (uiout, type, level); 904} 905 906void 907uo_field_int (struct ui_out *uiout, int fldno, int width, enum ui_align align, 908 const char *fldname, 909 int value) 910{ 911 if (!uiout->impl->field_int) 912 return; 913 uiout->impl->field_int (uiout, fldno, width, align, fldname, value); 914} 915 916void 917uo_field_skip (struct ui_out *uiout, int fldno, int width, enum ui_align align, 918 const char *fldname) 919{ 920 if (!uiout->impl->field_skip) 921 return; 922 uiout->impl->field_skip (uiout, fldno, width, align, fldname); 923} 924 925void 926uo_field_string (struct ui_out *uiout, int fldno, int width, 927 enum ui_align align, 928 const char *fldname, 929 const char *string) 930{ 931 if (!uiout->impl->field_string) 932 return; 933 uiout->impl->field_string (uiout, fldno, width, align, fldname, string); 934} 935 936void 937uo_field_fmt (struct ui_out *uiout, int fldno, int width, enum ui_align align, 938 const char *fldname, 939 const char *format, 940 va_list args) 941{ 942 if (!uiout->impl->field_fmt) 943 return; 944 uiout->impl->field_fmt (uiout, fldno, width, align, fldname, format, args); 945} 946 947void 948uo_spaces (struct ui_out *uiout, int numspaces) 949{ 950 if (!uiout->impl->spaces) 951 return; 952 uiout->impl->spaces (uiout, numspaces); 953} 954 955void 956uo_text (struct ui_out *uiout, 957 const char *string) 958{ 959 if (!uiout->impl->text) 960 return; 961 uiout->impl->text (uiout, string); 962} 963 964void 965uo_message (struct ui_out *uiout, int verbosity, 966 const char *format, 967 va_list args) 968{ 969 if (!uiout->impl->message) 970 return; 971 uiout->impl->message (uiout, verbosity, format, args); 972} 973 974void 975uo_wrap_hint (struct ui_out *uiout, char *identstring) 976{ 977 if (!uiout->impl->wrap_hint) 978 return; 979 uiout->impl->wrap_hint (uiout, identstring); 980} 981 982void 983uo_flush (struct ui_out *uiout) 984{ 985 if (!uiout->impl->flush) 986 return; 987 uiout->impl->flush (uiout); 988} 989 990int 991uo_redirect (struct ui_out *uiout, struct ui_file *outstream) 992{ 993 if (!uiout->impl->redirect) 994 return -1; 995 uiout->impl->redirect (uiout, outstream); 996 return 0; 997} 998 999/* local functions */ 1000 1001/* list of column headers manipulation routines */ 1002 1003static void 1004clear_header_list (struct ui_out *uiout) 1005{ 1006 while (uiout->table.header_first != NULL) 1007 { 1008 uiout->table.header_next = uiout->table.header_first; 1009 uiout->table.header_first = uiout->table.header_first->next; 1010 if (uiout->table.header_next->colhdr != NULL) 1011 xfree (uiout->table.header_next->colhdr); 1012 xfree (uiout->table.header_next); 1013 } 1014 gdb_assert (uiout->table.header_first == NULL); 1015 uiout->table.header_last = NULL; 1016 uiout->table.header_next = NULL; 1017} 1018 1019static void 1020append_header_to_list (struct ui_out *uiout, 1021 int width, 1022 int alignment, 1023 const char *col_name, 1024 const char *colhdr) 1025{ 1026 struct ui_out_hdr *temphdr; 1027 1028 temphdr = XMALLOC (struct ui_out_hdr); 1029 temphdr->width = width; 1030 temphdr->alignment = alignment; 1031 /* we have to copy the column title as the original may be an automatic */ 1032 if (colhdr != NULL) 1033 temphdr->colhdr = xstrdup (colhdr); 1034 else 1035 temphdr->colhdr = NULL; 1036 if (col_name != NULL) 1037 temphdr->col_name = xstrdup (colhdr); 1038 else 1039 temphdr->col_name = xstrdup (colhdr); 1040 temphdr->next = NULL; 1041 if (uiout->table.header_first == NULL) 1042 { 1043 temphdr->colno = 1; 1044 uiout->table.header_first = temphdr; 1045 uiout->table.header_last = temphdr; 1046 } 1047 else 1048 { 1049 temphdr->colno = uiout->table.header_last->colno + 1; 1050 uiout->table.header_last->next = temphdr; 1051 uiout->table.header_last = temphdr; 1052 } 1053 uiout->table.header_next = uiout->table.header_last; 1054} 1055 1056/* Extract the format information for the NEXT header and and advance 1057 the header pointer. Return 0 if there was no next header. */ 1058 1059static int 1060get_next_header (struct ui_out *uiout, 1061 int *colno, 1062 int *width, 1063 int *alignment, 1064 char **colhdr) 1065{ 1066 /* There may be no headers at all or we may have used all columns. */ 1067 if (uiout->table.header_next == NULL) 1068 return 0; 1069 *colno = uiout->table.header_next->colno; 1070 *width = uiout->table.header_next->width; 1071 *alignment = uiout->table.header_next->alignment; 1072 *colhdr = uiout->table.header_next->colhdr; 1073 /* Advance the header pointer to the next entry. */ 1074 uiout->table.header_next = uiout->table.header_next->next; 1075 return 1; 1076} 1077 1078 1079/* Verify that the field/tuple/list is correctly positioned. Return 1080 the field number and corresponding alignment (if 1081 available/applicable). */ 1082 1083static void 1084verify_field (struct ui_out *uiout, int *fldno, int *width, int *align) 1085{ 1086 struct ui_out_level *current = current_level (uiout); 1087 char *text; 1088 1089 if (uiout->table.flag) 1090 { 1091 if (!uiout->table.body_flag) 1092 internal_error (__FILE__, __LINE__, 1093 "table_body missing; table fields must be \ 1094specified after table_body and inside a list."); 1095 /* NOTE: cagney/2001-12-08: There was a check here to ensure 1096 that this code was only executed when uiout->level was 1097 greater than zero. That no longer applies - this code is run 1098 before each table row tuple is started and at that point the 1099 level is zero. */ 1100 } 1101 1102 current->field_count += 1; 1103 1104 if (uiout->table.body_flag 1105 && uiout->table.entry_level == uiout->level 1106 && get_next_header (uiout, fldno, width, align, &text)) 1107 { 1108 if (*fldno != current->field_count) 1109 internal_error (__FILE__, __LINE__, 1110 "ui-out internal error in handling headers."); 1111 } 1112 else 1113 { 1114 *width = 0; 1115 *align = ui_noalign; 1116 *fldno = current->field_count; 1117 } 1118} 1119 1120 1121/* access to ui_out format private members */ 1122 1123void 1124ui_out_get_field_separator (struct ui_out *uiout) 1125{ 1126} 1127 1128/* Access to ui-out members data */ 1129 1130struct ui_out_data * 1131ui_out_data (struct ui_out *uiout) 1132{ 1133 return uiout->data; 1134} 1135 1136/* initalize private members at startup */ 1137 1138struct ui_out * 1139ui_out_new (struct ui_out_impl *impl, 1140 struct ui_out_data *data, 1141 int flags) 1142{ 1143 struct ui_out *uiout = XMALLOC (struct ui_out); 1144 uiout->data = data; 1145 uiout->impl = impl; 1146 uiout->flags = flags; 1147 uiout->table.flag = 0; 1148 uiout->table.body_flag = 0; 1149 uiout->level = 0; 1150 memset (uiout->levels, 0, sizeof (uiout->levels)); 1151 uiout->table.header_first = NULL; 1152 uiout->table.header_last = NULL; 1153 uiout->table.header_next = NULL; 1154 return uiout; 1155} 1156 1157/* standard gdb initialization hook */ 1158 1159void 1160_initialize_ui_out (void) 1161{ 1162 /* nothing needs to be done */ 1163} 1164