| 1 | /* TUI display source/assembly window. |
| 2 | |
| 3 | Copyright (C) 1998-2019 Free Software Foundation, Inc. |
| 4 | |
| 5 | Contributed by Hewlett-Packard Company. |
| 6 | |
| 7 | This file is part of GDB. |
| 8 | |
| 9 | This program is free software; you can redistribute it and/or modify |
| 10 | it under the terms of the GNU General Public License as published by |
| 11 | the Free Software Foundation; either version 3 of the License, or |
| 12 | (at your option) any later version. |
| 13 | |
| 14 | This program is distributed in the hope that it will be useful, |
| 15 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 17 | GNU General Public License for more details. |
| 18 | |
| 19 | You should have received a copy of the GNU General Public License |
| 20 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| 21 | |
| 22 | #include "defs.h" |
| 23 | #include <ctype.h> |
| 24 | #include "symtab.h" |
| 25 | #include "frame.h" |
| 26 | #include "breakpoint.h" |
| 27 | #include "value.h" |
| 28 | #include "source.h" |
| 29 | #include "objfiles.h" |
| 30 | #include "filenames.h" |
| 31 | |
| 32 | #include "tui/tui.h" |
| 33 | #include "tui/tui-data.h" |
| 34 | #include "tui/tui-io.h" |
| 35 | #include "tui/tui-stack.h" |
| 36 | #include "tui/tui-win.h" |
| 37 | #include "tui/tui-wingeneral.h" |
| 38 | #include "tui/tui-winsource.h" |
| 39 | #include "tui/tui-source.h" |
| 40 | #include "tui/tui-disasm.h" |
| 41 | #include "gdb_curses.h" |
| 42 | |
| 43 | /* Function to display the "main" routine. */ |
| 44 | void |
| 45 | tui_display_main () |
| 46 | { |
| 47 | if (!tui_source_windows ().empty ()) |
| 48 | { |
| 49 | struct gdbarch *gdbarch; |
| 50 | CORE_ADDR addr; |
| 51 | |
| 52 | tui_get_begin_asm_address (&gdbarch, &addr); |
| 53 | if (addr != (CORE_ADDR) 0) |
| 54 | { |
| 55 | struct symtab *s; |
| 56 | |
| 57 | tui_update_source_windows_with_addr (gdbarch, addr); |
| 58 | s = find_pc_line_symtab (addr); |
| 59 | if (s != NULL) |
| 60 | tui_update_locator_fullname (symtab_to_fullname (s)); |
| 61 | else |
| 62 | tui_update_locator_fullname ("??"); |
| 63 | } |
| 64 | } |
| 65 | } |
| 66 | |
| 67 | |
| 68 | |
| 69 | /* Function to display source in the source window. This function |
| 70 | initializes the horizontal scroll to 0. */ |
| 71 | void |
| 72 | tui_update_source_window (struct tui_win_info *win_info, |
| 73 | struct gdbarch *gdbarch, |
| 74 | struct symtab *s, |
| 75 | struct tui_line_or_address line_or_addr, |
| 76 | int noerror) |
| 77 | { |
| 78 | win_info->detail.source_info.horizontal_offset = 0; |
| 79 | tui_update_source_window_as_is (win_info, gdbarch, s, line_or_addr, noerror); |
| 80 | |
| 81 | return; |
| 82 | } |
| 83 | |
| 84 | |
| 85 | /* Function to display source in the source/asm window. This function |
| 86 | shows the source as specified by the horizontal offset. */ |
| 87 | void |
| 88 | tui_update_source_window_as_is (struct tui_win_info *win_info, |
| 89 | struct gdbarch *gdbarch, |
| 90 | struct symtab *s, |
| 91 | struct tui_line_or_address line_or_addr, |
| 92 | int noerror) |
| 93 | { |
| 94 | enum tui_status ret; |
| 95 | |
| 96 | if (win_info->generic.type == SRC_WIN) |
| 97 | ret = tui_set_source_content (s, line_or_addr.u.line_no, noerror); |
| 98 | else |
| 99 | ret = tui_set_disassem_content (gdbarch, line_or_addr.u.addr); |
| 100 | |
| 101 | if (ret == TUI_FAILURE) |
| 102 | { |
| 103 | tui_clear_source_content (win_info, EMPTY_SOURCE_PROMPT); |
| 104 | tui_clear_exec_info_content (win_info); |
| 105 | } |
| 106 | else |
| 107 | { |
| 108 | tui_update_breakpoint_info (win_info, 0); |
| 109 | tui_show_source_content (win_info); |
| 110 | tui_update_exec_info (win_info); |
| 111 | if (win_info->generic.type == SRC_WIN) |
| 112 | { |
| 113 | symtab_and_line sal; |
| 114 | |
| 115 | sal.line = line_or_addr.u.line_no + |
| 116 | (win_info->generic.content_size - 2); |
| 117 | sal.symtab = s; |
| 118 | sal.pspace = SYMTAB_PSPACE (s); |
| 119 | set_current_source_symtab_and_line (sal); |
| 120 | /* If the focus was in the asm win, put it in the src win if |
| 121 | we don't have a split layout. */ |
| 122 | if (tui_win_with_focus () == TUI_DISASM_WIN |
| 123 | && tui_current_layout () != SRC_DISASSEM_COMMAND) |
| 124 | tui_set_win_focus_to (TUI_SRC_WIN); |
| 125 | } |
| 126 | } |
| 127 | |
| 128 | |
| 129 | return; |
| 130 | } |
| 131 | |
| 132 | |
| 133 | /* Function to ensure that the source and/or disassemly windows |
| 134 | reflect the input address. */ |
| 135 | void |
| 136 | tui_update_source_windows_with_addr (struct gdbarch *gdbarch, CORE_ADDR addr) |
| 137 | { |
| 138 | if (addr != 0) |
| 139 | { |
| 140 | struct symtab_and_line sal; |
| 141 | struct tui_line_or_address l; |
| 142 | |
| 143 | switch (tui_current_layout ()) |
| 144 | { |
| 145 | case DISASSEM_COMMAND: |
| 146 | case DISASSEM_DATA_COMMAND: |
| 147 | tui_show_disassem (gdbarch, addr); |
| 148 | break; |
| 149 | case SRC_DISASSEM_COMMAND: |
| 150 | tui_show_disassem_and_update_source (gdbarch, addr); |
| 151 | break; |
| 152 | default: |
| 153 | sal = find_pc_line (addr, 0); |
| 154 | l.loa = LOA_LINE; |
| 155 | l.u.line_no = sal.line; |
| 156 | tui_show_symtab_source (gdbarch, sal.symtab, l, FALSE); |
| 157 | break; |
| 158 | } |
| 159 | } |
| 160 | else |
| 161 | { |
| 162 | for (struct tui_win_info *win_info : tui_source_windows ()) |
| 163 | { |
| 164 | tui_clear_source_content (win_info, EMPTY_SOURCE_PROMPT); |
| 165 | tui_clear_exec_info_content (win_info); |
| 166 | } |
| 167 | } |
| 168 | } |
| 169 | |
| 170 | /* Function to ensure that the source and/or disassemly windows |
| 171 | reflect the input address. */ |
| 172 | void |
| 173 | tui_update_source_windows_with_line (struct symtab *s, int line) |
| 174 | { |
| 175 | struct gdbarch *gdbarch; |
| 176 | CORE_ADDR pc; |
| 177 | struct tui_line_or_address l; |
| 178 | |
| 179 | if (!s) |
| 180 | return; |
| 181 | |
| 182 | gdbarch = get_objfile_arch (SYMTAB_OBJFILE (s)); |
| 183 | |
| 184 | switch (tui_current_layout ()) |
| 185 | { |
| 186 | case DISASSEM_COMMAND: |
| 187 | case DISASSEM_DATA_COMMAND: |
| 188 | find_line_pc (s, line, &pc); |
| 189 | tui_update_source_windows_with_addr (gdbarch, pc); |
| 190 | break; |
| 191 | default: |
| 192 | l.loa = LOA_LINE; |
| 193 | l.u.line_no = line; |
| 194 | tui_show_symtab_source (gdbarch, s, l, FALSE); |
| 195 | if (tui_current_layout () == SRC_DISASSEM_COMMAND) |
| 196 | { |
| 197 | find_line_pc (s, line, &pc); |
| 198 | tui_show_disassem (gdbarch, pc); |
| 199 | } |
| 200 | break; |
| 201 | } |
| 202 | |
| 203 | return; |
| 204 | } |
| 205 | |
| 206 | void |
| 207 | tui_clear_source_content (struct tui_win_info *win_info, |
| 208 | int display_prompt) |
| 209 | { |
| 210 | if (win_info != NULL) |
| 211 | { |
| 212 | int i; |
| 213 | |
| 214 | win_info->generic.content_in_use = FALSE; |
| 215 | tui_erase_source_content (win_info, display_prompt); |
| 216 | for (i = 0; i < win_info->generic.content_size; i++) |
| 217 | { |
| 218 | struct tui_win_element *element = win_info->generic.content[i]; |
| 219 | |
| 220 | element->which_element.source.has_break = FALSE; |
| 221 | element->which_element.source.is_exec_point = FALSE; |
| 222 | } |
| 223 | } |
| 224 | } |
| 225 | |
| 226 | |
| 227 | void |
| 228 | tui_erase_source_content (struct tui_win_info *win_info, |
| 229 | int display_prompt) |
| 230 | { |
| 231 | int x_pos; |
| 232 | int half_width = (win_info->generic.width - 2) / 2; |
| 233 | |
| 234 | if (win_info->generic.handle != NULL) |
| 235 | { |
| 236 | werase (win_info->generic.handle); |
| 237 | tui_check_and_display_highlight_if_needed (win_info); |
| 238 | if (display_prompt == EMPTY_SOURCE_PROMPT) |
| 239 | { |
| 240 | const char *no_src_str; |
| 241 | |
| 242 | if (win_info->generic.type == SRC_WIN) |
| 243 | no_src_str = NO_SRC_STRING; |
| 244 | else |
| 245 | no_src_str = NO_DISASSEM_STRING; |
| 246 | if (strlen (no_src_str) >= half_width) |
| 247 | x_pos = 1; |
| 248 | else |
| 249 | x_pos = half_width - strlen (no_src_str); |
| 250 | mvwaddstr (win_info->generic.handle, |
| 251 | (win_info->generic.height / 2), |
| 252 | x_pos, |
| 253 | (char *) no_src_str); |
| 254 | |
| 255 | /* elz: Added this function call to set the real contents of |
| 256 | the window to what is on the screen, so that later calls |
| 257 | to refresh, do display the correct stuff, and not the old |
| 258 | image. */ |
| 259 | |
| 260 | tui_set_source_content_nil (win_info, no_src_str); |
| 261 | } |
| 262 | tui_refresh_win (&win_info->generic); |
| 263 | } |
| 264 | } |
| 265 | |
| 266 | |
| 267 | /* Redraw the complete line of a source or disassembly window. */ |
| 268 | static void |
| 269 | tui_show_source_line (struct tui_win_info *win_info, int lineno) |
| 270 | { |
| 271 | struct tui_win_element *line; |
| 272 | int x; |
| 273 | |
| 274 | line = win_info->generic.content[lineno - 1]; |
| 275 | if (line->which_element.source.is_exec_point) |
| 276 | tui_set_reverse_mode (win_info->generic.handle, true); |
| 277 | |
| 278 | wmove (win_info->generic.handle, lineno, 1); |
| 279 | tui_puts (line->which_element.source.line, |
| 280 | win_info->generic.handle); |
| 281 | if (line->which_element.source.is_exec_point) |
| 282 | tui_set_reverse_mode (win_info->generic.handle, false); |
| 283 | |
| 284 | /* Clear to end of line but stop before the border. */ |
| 285 | x = getcurx (win_info->generic.handle); |
| 286 | while (x + 1 < win_info->generic.width) |
| 287 | { |
| 288 | waddch (win_info->generic.handle, ' '); |
| 289 | x = getcurx (win_info->generic.handle); |
| 290 | } |
| 291 | } |
| 292 | |
| 293 | void |
| 294 | tui_show_source_content (struct tui_win_info *win_info) |
| 295 | { |
| 296 | if (win_info->generic.content_size > 0) |
| 297 | { |
| 298 | int lineno; |
| 299 | |
| 300 | for (lineno = 1; lineno <= win_info->generic.content_size; lineno++) |
| 301 | tui_show_source_line (win_info, lineno); |
| 302 | } |
| 303 | else |
| 304 | tui_erase_source_content (win_info, TRUE); |
| 305 | |
| 306 | tui_check_and_display_highlight_if_needed (win_info); |
| 307 | tui_refresh_win (&win_info->generic); |
| 308 | win_info->generic.content_in_use = TRUE; |
| 309 | } |
| 310 | |
| 311 | /* Refill the source window's source cache and update it. If WIN_INFO |
| 312 | is a disassembly window, then just update it. */ |
| 313 | |
| 314 | void |
| 315 | tui_refill_source_window (struct tui_win_info *win_info) |
| 316 | { |
| 317 | symtab *s = nullptr; |
| 318 | |
| 319 | if (win_info->generic.type == SRC_WIN) |
| 320 | { |
| 321 | symtab_and_line cursal = get_current_source_symtab_and_line (); |
| 322 | s = (cursal.symtab == NULL |
| 323 | ? find_pc_line_symtab (get_frame_pc (get_selected_frame (NULL))) |
| 324 | : cursal.symtab); |
| 325 | } |
| 326 | |
| 327 | tui_update_source_window_as_is (win_info, |
| 328 | win_info->detail.source_info.gdbarch, |
| 329 | s, |
| 330 | win_info->generic.content[0] |
| 331 | ->which_element.source.line_or_addr, |
| 332 | FALSE); |
| 333 | } |
| 334 | |
| 335 | /* Scroll the source forward or backward horizontally. */ |
| 336 | |
| 337 | void |
| 338 | tui_source_window_base::do_scroll_horizontal |
| 339 | (enum tui_scroll_direction direction, int num_to_scroll) |
| 340 | { |
| 341 | if (generic.content != NULL) |
| 342 | { |
| 343 | int offset; |
| 344 | |
| 345 | if (direction == LEFT_SCROLL) |
| 346 | offset = detail.source_info.horizontal_offset |
| 347 | + num_to_scroll; |
| 348 | else |
| 349 | { |
| 350 | offset = detail.source_info.horizontal_offset |
| 351 | - num_to_scroll; |
| 352 | if (offset < 0) |
| 353 | offset = 0; |
| 354 | } |
| 355 | detail.source_info.horizontal_offset = offset; |
| 356 | tui_refill_source_window (this); |
| 357 | } |
| 358 | } |
| 359 | |
| 360 | |
| 361 | /* Set or clear the has_break flag in the line whose line is |
| 362 | line_no. */ |
| 363 | |
| 364 | void |
| 365 | tui_set_is_exec_point_at (struct tui_line_or_address l, |
| 366 | struct tui_win_info *win_info) |
| 367 | { |
| 368 | int changed = 0; |
| 369 | int i; |
| 370 | tui_win_content content = win_info->generic.content; |
| 371 | |
| 372 | i = 0; |
| 373 | while (i < win_info->generic.content_size) |
| 374 | { |
| 375 | int new_state; |
| 376 | struct tui_line_or_address content_loa = |
| 377 | content[i]->which_element.source.line_or_addr; |
| 378 | |
| 379 | gdb_assert (l.loa == LOA_ADDRESS || l.loa == LOA_LINE); |
| 380 | gdb_assert (content_loa.loa == LOA_LINE |
| 381 | || content_loa.loa == LOA_ADDRESS); |
| 382 | if (content_loa.loa == l.loa |
| 383 | && ((l.loa == LOA_LINE && content_loa.u.line_no == l.u.line_no) |
| 384 | || (content_loa.u.addr == l.u.addr))) |
| 385 | new_state = TRUE; |
| 386 | else |
| 387 | new_state = FALSE; |
| 388 | if (new_state != content[i]->which_element.source.is_exec_point) |
| 389 | { |
| 390 | changed++; |
| 391 | content[i]->which_element.source.is_exec_point = new_state; |
| 392 | tui_show_source_line (win_info, i + 1); |
| 393 | } |
| 394 | i++; |
| 395 | } |
| 396 | if (changed) |
| 397 | tui_refill_source_window (win_info); |
| 398 | } |
| 399 | |
| 400 | /* Update the execution windows to show the active breakpoints. |
| 401 | This is called whenever a breakpoint is inserted, removed or |
| 402 | has its state changed. */ |
| 403 | void |
| 404 | tui_update_all_breakpoint_info () |
| 405 | { |
| 406 | for (tui_win_info *win : tui_source_windows ()) |
| 407 | { |
| 408 | if (tui_update_breakpoint_info (win, FALSE)) |
| 409 | { |
| 410 | tui_update_exec_info (win); |
| 411 | } |
| 412 | } |
| 413 | } |
| 414 | |
| 415 | |
| 416 | /* Scan the source window and the breakpoints to update the has_break |
| 417 | information for each line. |
| 418 | |
| 419 | Returns 1 if something changed and the execution window must be |
| 420 | refreshed. */ |
| 421 | |
| 422 | int |
| 423 | tui_update_breakpoint_info (struct tui_win_info *win, |
| 424 | int current_only) |
| 425 | { |
| 426 | int i; |
| 427 | int need_refresh = 0; |
| 428 | struct tui_source_info *src = &win->detail.source_info; |
| 429 | |
| 430 | for (i = 0; i < win->generic.content_size; i++) |
| 431 | { |
| 432 | struct breakpoint *bp; |
| 433 | extern struct breakpoint *breakpoint_chain; |
| 434 | int mode; |
| 435 | struct tui_source_element *line; |
| 436 | |
| 437 | line = &win->generic.content[i]->which_element.source; |
| 438 | if (current_only && !line->is_exec_point) |
| 439 | continue; |
| 440 | |
| 441 | /* Scan each breakpoint to see if the current line has something to |
| 442 | do with it. Identify enable/disabled breakpoints as well as |
| 443 | those that we already hit. */ |
| 444 | mode = 0; |
| 445 | for (bp = breakpoint_chain; |
| 446 | bp != NULL; |
| 447 | bp = bp->next) |
| 448 | { |
| 449 | struct bp_location *loc; |
| 450 | |
| 451 | gdb_assert (line->line_or_addr.loa == LOA_LINE |
| 452 | || line->line_or_addr.loa == LOA_ADDRESS); |
| 453 | |
| 454 | for (loc = bp->loc; loc != NULL; loc = loc->next) |
| 455 | { |
| 456 | if ((win == TUI_SRC_WIN |
| 457 | && loc->symtab != NULL |
| 458 | && filename_cmp (src->fullname, |
| 459 | symtab_to_fullname (loc->symtab)) == 0 |
| 460 | && line->line_or_addr.loa == LOA_LINE |
| 461 | && loc->line_number == line->line_or_addr.u.line_no) |
| 462 | || (win == TUI_DISASM_WIN |
| 463 | && line->line_or_addr.loa == LOA_ADDRESS |
| 464 | && loc->address == line->line_or_addr.u.addr)) |
| 465 | { |
| 466 | if (bp->enable_state == bp_disabled) |
| 467 | mode |= TUI_BP_DISABLED; |
| 468 | else |
| 469 | mode |= TUI_BP_ENABLED; |
| 470 | if (bp->hit_count) |
| 471 | mode |= TUI_BP_HIT; |
| 472 | if (bp->loc->cond) |
| 473 | mode |= TUI_BP_CONDITIONAL; |
| 474 | if (bp->type == bp_hardware_breakpoint) |
| 475 | mode |= TUI_BP_HARDWARE; |
| 476 | } |
| 477 | } |
| 478 | } |
| 479 | if (line->has_break != mode) |
| 480 | { |
| 481 | line->has_break = mode; |
| 482 | need_refresh = 1; |
| 483 | } |
| 484 | } |
| 485 | return need_refresh; |
| 486 | } |
| 487 | |
| 488 | |
| 489 | /* Function to initialize the content of the execution info window, |
| 490 | based upon the input window which is either the source or |
| 491 | disassembly window. */ |
| 492 | enum tui_status |
| 493 | tui_set_exec_info_content (struct tui_win_info *win_info) |
| 494 | { |
| 495 | enum tui_status ret = TUI_SUCCESS; |
| 496 | |
| 497 | if (win_info->detail.source_info.execution_info != NULL) |
| 498 | { |
| 499 | struct tui_gen_win_info *exec_info_ptr |
| 500 | = win_info->detail.source_info.execution_info; |
| 501 | |
| 502 | if (exec_info_ptr->content == NULL) |
| 503 | exec_info_ptr->content = |
| 504 | tui_alloc_content (win_info->generic.height, exec_info_ptr->type); |
| 505 | if (exec_info_ptr->content != NULL) |
| 506 | { |
| 507 | int i; |
| 508 | |
| 509 | tui_update_breakpoint_info (win_info, 1); |
| 510 | for (i = 0; i < win_info->generic.content_size; i++) |
| 511 | { |
| 512 | struct tui_win_element *element; |
| 513 | struct tui_win_element *src_element; |
| 514 | int mode; |
| 515 | |
| 516 | element = exec_info_ptr->content[i]; |
| 517 | src_element = win_info->generic.content[i]; |
| 518 | |
| 519 | memset(element->which_element.simple_string, ' ', |
| 520 | sizeof(element->which_element.simple_string)); |
| 521 | element->which_element.simple_string[TUI_EXECINFO_SIZE - 1] = 0; |
| 522 | |
| 523 | /* Now update the exec info content based upon the state |
| 524 | of each line as indicated by the source content. */ |
| 525 | mode = src_element->which_element.source.has_break; |
| 526 | if (mode & TUI_BP_HIT) |
| 527 | element->which_element.simple_string[TUI_BP_HIT_POS] = |
| 528 | (mode & TUI_BP_HARDWARE) ? 'H' : 'B'; |
| 529 | else if (mode & (TUI_BP_ENABLED | TUI_BP_DISABLED)) |
| 530 | element->which_element.simple_string[TUI_BP_HIT_POS] = |
| 531 | (mode & TUI_BP_HARDWARE) ? 'h' : 'b'; |
| 532 | |
| 533 | if (mode & TUI_BP_ENABLED) |
| 534 | element->which_element.simple_string[TUI_BP_BREAK_POS] = '+'; |
| 535 | else if (mode & TUI_BP_DISABLED) |
| 536 | element->which_element.simple_string[TUI_BP_BREAK_POS] = '-'; |
| 537 | |
| 538 | if (src_element->which_element.source.is_exec_point) |
| 539 | element->which_element.simple_string[TUI_EXEC_POS] = '>'; |
| 540 | } |
| 541 | exec_info_ptr->content_size = win_info->generic.content_size; |
| 542 | } |
| 543 | else |
| 544 | ret = TUI_FAILURE; |
| 545 | } |
| 546 | |
| 547 | return ret; |
| 548 | } |
| 549 | |
| 550 | |
| 551 | void |
| 552 | tui_show_exec_info_content (struct tui_win_info *win_info) |
| 553 | { |
| 554 | struct tui_gen_win_info *exec_info |
| 555 | = win_info->detail.source_info.execution_info; |
| 556 | int cur_line; |
| 557 | |
| 558 | werase (exec_info->handle); |
| 559 | tui_refresh_win (exec_info); |
| 560 | for (cur_line = 1; (cur_line <= exec_info->content_size); cur_line++) |
| 561 | mvwaddstr (exec_info->handle, |
| 562 | cur_line, |
| 563 | 0, |
| 564 | (char *) exec_info->content[cur_line - 1] |
| 565 | ->which_element.simple_string); |
| 566 | tui_refresh_win (exec_info); |
| 567 | exec_info->content_in_use = TRUE; |
| 568 | } |
| 569 | |
| 570 | |
| 571 | void |
| 572 | tui_erase_exec_info_content (struct tui_win_info *win_info) |
| 573 | { |
| 574 | struct tui_gen_win_info *exec_info |
| 575 | = win_info->detail.source_info.execution_info; |
| 576 | |
| 577 | werase (exec_info->handle); |
| 578 | tui_refresh_win (exec_info); |
| 579 | } |
| 580 | |
| 581 | void |
| 582 | tui_clear_exec_info_content (struct tui_win_info *win_info) |
| 583 | { |
| 584 | win_info->detail.source_info.execution_info->content_in_use = FALSE; |
| 585 | tui_erase_exec_info_content (win_info); |
| 586 | |
| 587 | return; |
| 588 | } |
| 589 | |
| 590 | /* Function to update the execution info window. */ |
| 591 | void |
| 592 | tui_update_exec_info (struct tui_win_info *win_info) |
| 593 | { |
| 594 | tui_set_exec_info_content (win_info); |
| 595 | tui_show_exec_info_content (win_info); |
| 596 | } |
| 597 | |
| 598 | enum tui_status |
| 599 | tui_alloc_source_buffer (struct tui_win_info *win_info) |
| 600 | { |
| 601 | int i, line_width, max_lines; |
| 602 | |
| 603 | /* The window width/height includes the highlight box. Determine actual |
| 604 | content dimensions, including string null-terminators. */ |
| 605 | max_lines = win_info->generic.height - 2; |
| 606 | line_width = win_info->generic.width - 2 + 1; |
| 607 | |
| 608 | /* Allocate the buffer for the source lines. */ |
| 609 | if (win_info->generic.content == NULL) |
| 610 | { |
| 611 | /* Allocate the content list. */ |
| 612 | win_info->generic.content = tui_alloc_content (max_lines, SRC_WIN); |
| 613 | for (i = 0; i < max_lines; i++) |
| 614 | win_info->generic.content[i]->which_element.source.line |
| 615 | = (char *) xmalloc (line_width); |
| 616 | } |
| 617 | |
| 618 | return TUI_SUCCESS; |
| 619 | } |
| 620 | |
| 621 | |
| 622 | /* Answer whether a particular line number or address is displayed |
| 623 | in the current source window. */ |
| 624 | int |
| 625 | tui_line_is_displayed (int line, |
| 626 | struct tui_win_info *win_info, |
| 627 | int check_threshold) |
| 628 | { |
| 629 | int is_displayed = FALSE; |
| 630 | int i, threshold; |
| 631 | |
| 632 | if (check_threshold) |
| 633 | threshold = SCROLL_THRESHOLD; |
| 634 | else |
| 635 | threshold = 0; |
| 636 | i = 0; |
| 637 | while (i < win_info->generic.content_size - threshold |
| 638 | && !is_displayed) |
| 639 | { |
| 640 | is_displayed |
| 641 | = win_info->generic.content[i] |
| 642 | ->which_element.source.line_or_addr.loa == LOA_LINE |
| 643 | && win_info->generic.content[i] |
| 644 | ->which_element.source.line_or_addr.u.line_no == line; |
| 645 | i++; |
| 646 | } |
| 647 | |
| 648 | return is_displayed; |
| 649 | } |
| 650 | |
| 651 | |
| 652 | /* Answer whether a particular line number or address is displayed |
| 653 | in the current source window. */ |
| 654 | int |
| 655 | tui_addr_is_displayed (CORE_ADDR addr, |
| 656 | struct tui_win_info *win_info, |
| 657 | int check_threshold) |
| 658 | { |
| 659 | int is_displayed = FALSE; |
| 660 | int i, threshold; |
| 661 | |
| 662 | if (check_threshold) |
| 663 | threshold = SCROLL_THRESHOLD; |
| 664 | else |
| 665 | threshold = 0; |
| 666 | i = 0; |
| 667 | while (i < win_info->generic.content_size - threshold |
| 668 | && !is_displayed) |
| 669 | { |
| 670 | is_displayed |
| 671 | = win_info->generic.content[i] |
| 672 | ->which_element.source.line_or_addr.loa == LOA_ADDRESS |
| 673 | && win_info->generic.content[i] |
| 674 | ->which_element.source.line_or_addr.u.addr == addr; |
| 675 | i++; |
| 676 | } |
| 677 | |
| 678 | return is_displayed; |
| 679 | } |
| 680 | |
| 681 | |
| 682 | /***************************************** |
| 683 | ** STATIC LOCAL FUNCTIONS ** |
| 684 | ******************************************/ |