| 1 | /* General functions for the WDB TUI. |
| 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 "gdbcmd.h" |
| 24 | #include "tui/tui.h" |
| 25 | #include "tui/tui-hooks.h" |
| 26 | #include "tui/tui-data.h" |
| 27 | #include "tui/tui-layout.h" |
| 28 | #include "tui/tui-io.h" |
| 29 | #include "tui/tui-regs.h" |
| 30 | #include "tui/tui-stack.h" |
| 31 | #include "tui/tui-win.h" |
| 32 | #include "tui/tui-winsource.h" |
| 33 | #include "tui/tui-windata.h" |
| 34 | #include "target.h" |
| 35 | #include "frame.h" |
| 36 | #include "breakpoint.h" |
| 37 | #include "inferior.h" |
| 38 | #include "symtab.h" |
| 39 | #include "source.h" |
| 40 | #include "terminal.h" |
| 41 | #include "top.h" |
| 42 | |
| 43 | #include <ctype.h> |
| 44 | #include <signal.h> |
| 45 | #include <fcntl.h> |
| 46 | #if 0 |
| 47 | #include <termio.h> |
| 48 | #endif |
| 49 | #include <setjmp.h> |
| 50 | |
| 51 | #include "gdb_curses.h" |
| 52 | #include "interps.h" |
| 53 | |
| 54 | /* This redefines CTRL if it is not already defined, so it must come |
| 55 | after terminal state releated include files like <term.h> and |
| 56 | "gdb_curses.h". */ |
| 57 | #include "readline/readline.h" |
| 58 | |
| 59 | /* Tells whether the TUI is active or not. */ |
| 60 | int tui_active = 0; |
| 61 | static int tui_finish_init = 1; |
| 62 | |
| 63 | enum tui_key_mode tui_current_key_mode = TUI_COMMAND_MODE; |
| 64 | |
| 65 | struct tui_char_command |
| 66 | { |
| 67 | unsigned char key; |
| 68 | const char *cmd; |
| 69 | }; |
| 70 | |
| 71 | /* Key mapping to gdb commands when the TUI is using the single key |
| 72 | mode. */ |
| 73 | static const struct tui_char_command tui_commands[] = { |
| 74 | { 'c', "continue" }, |
| 75 | { 'd', "down" }, |
| 76 | { 'f', "finish" }, |
| 77 | { 'n', "next" }, |
| 78 | { 'o', "nexti" }, |
| 79 | { 'r', "run" }, |
| 80 | { 's', "step" }, |
| 81 | { 'i', "stepi" }, |
| 82 | { 'u', "up" }, |
| 83 | { 'v', "info locals" }, |
| 84 | { 'w', "where" }, |
| 85 | { 0, 0 }, |
| 86 | }; |
| 87 | |
| 88 | static Keymap tui_keymap; |
| 89 | static Keymap tui_readline_standard_keymap; |
| 90 | |
| 91 | /* TUI readline command. |
| 92 | Switch the output mode between TUI/standard gdb. */ |
| 93 | static int |
| 94 | tui_rl_switch_mode (int notused1, int notused2) |
| 95 | { |
| 96 | |
| 97 | /* Don't let exceptions escape. We're in the middle of a readline |
| 98 | callback that isn't prepared for that. */ |
| 99 | try |
| 100 | { |
| 101 | if (tui_active) |
| 102 | { |
| 103 | tui_disable (); |
| 104 | rl_prep_terminal (0); |
| 105 | } |
| 106 | else |
| 107 | { |
| 108 | /* If tui_enable throws, we'll re-prep below. */ |
| 109 | rl_deprep_terminal (); |
| 110 | tui_enable (); |
| 111 | } |
| 112 | } |
| 113 | catch (const gdb_exception &ex) |
| 114 | { |
| 115 | exception_print (gdb_stderr, ex); |
| 116 | |
| 117 | if (!tui_active) |
| 118 | rl_prep_terminal (0); |
| 119 | } |
| 120 | |
| 121 | /* Clear the readline in case switching occurred in middle of |
| 122 | something. */ |
| 123 | if (rl_end) |
| 124 | rl_kill_text (0, rl_end); |
| 125 | |
| 126 | /* Since we left the curses mode, the terminal mode is restored to |
| 127 | some previous state. That state may not be suitable for readline |
| 128 | to work correctly (it may be restored in line mode). We force an |
| 129 | exit of the current readline so that readline is re-entered and |
| 130 | it will be able to setup the terminal for its needs. By |
| 131 | re-entering in readline, we also redisplay its prompt in the |
| 132 | non-curses mode. */ |
| 133 | rl_newline (1, '\n'); |
| 134 | |
| 135 | /* Make sure the \n we are returning does not repeat the last |
| 136 | command. */ |
| 137 | dont_repeat (); |
| 138 | return 0; |
| 139 | } |
| 140 | |
| 141 | /* TUI readline command. |
| 142 | Change the TUI layout to show a next layout. |
| 143 | This function is bound to CTRL-X 2. It is intended to provide |
| 144 | a functionality close to the Emacs split-window command. We |
| 145 | always show two windows (src+asm), (src+regs) or (asm+regs). */ |
| 146 | static int |
| 147 | tui_rl_change_windows (int notused1, int notused2) |
| 148 | { |
| 149 | if (!tui_active) |
| 150 | tui_rl_switch_mode (0 /* notused */, 0 /* notused */); |
| 151 | |
| 152 | if (tui_active) |
| 153 | { |
| 154 | enum tui_layout_type new_layout; |
| 155 | |
| 156 | new_layout = tui_current_layout (); |
| 157 | |
| 158 | /* Select a new layout to have a rolling layout behavior with |
| 159 | always two windows (except when undefined). */ |
| 160 | switch (new_layout) |
| 161 | { |
| 162 | case SRC_COMMAND: |
| 163 | new_layout = SRC_DISASSEM_COMMAND; |
| 164 | break; |
| 165 | |
| 166 | case DISASSEM_COMMAND: |
| 167 | new_layout = SRC_DISASSEM_COMMAND; |
| 168 | break; |
| 169 | |
| 170 | case SRC_DATA_COMMAND: |
| 171 | new_layout = SRC_DISASSEM_COMMAND; |
| 172 | break; |
| 173 | |
| 174 | case SRC_DISASSEM_COMMAND: |
| 175 | new_layout = DISASSEM_DATA_COMMAND; |
| 176 | break; |
| 177 | |
| 178 | case DISASSEM_DATA_COMMAND: |
| 179 | new_layout = SRC_DATA_COMMAND; |
| 180 | break; |
| 181 | |
| 182 | default: |
| 183 | new_layout = SRC_COMMAND; |
| 184 | break; |
| 185 | } |
| 186 | tui_set_layout (new_layout); |
| 187 | } |
| 188 | return 0; |
| 189 | } |
| 190 | |
| 191 | /* TUI readline command. |
| 192 | Delete the second TUI window to only show one. */ |
| 193 | static int |
| 194 | tui_rl_delete_other_windows (int notused1, int notused2) |
| 195 | { |
| 196 | if (!tui_active) |
| 197 | tui_rl_switch_mode (0 /* notused */, 0 /* notused */); |
| 198 | |
| 199 | if (tui_active) |
| 200 | { |
| 201 | enum tui_layout_type new_layout; |
| 202 | |
| 203 | new_layout = tui_current_layout (); |
| 204 | |
| 205 | /* Kill one window. */ |
| 206 | switch (new_layout) |
| 207 | { |
| 208 | case SRC_COMMAND: |
| 209 | case SRC_DATA_COMMAND: |
| 210 | case SRC_DISASSEM_COMMAND: |
| 211 | default: |
| 212 | new_layout = SRC_COMMAND; |
| 213 | break; |
| 214 | |
| 215 | case DISASSEM_COMMAND: |
| 216 | case DISASSEM_DATA_COMMAND: |
| 217 | new_layout = DISASSEM_COMMAND; |
| 218 | break; |
| 219 | } |
| 220 | tui_set_layout (new_layout); |
| 221 | } |
| 222 | return 0; |
| 223 | } |
| 224 | |
| 225 | /* TUI readline command. |
| 226 | Switch the active window to give the focus to a next window. */ |
| 227 | static int |
| 228 | tui_rl_other_window (int count, int key) |
| 229 | { |
| 230 | struct tui_win_info *win_info; |
| 231 | |
| 232 | if (!tui_active) |
| 233 | tui_rl_switch_mode (0 /* notused */, 0 /* notused */); |
| 234 | |
| 235 | win_info = tui_next_win (tui_win_with_focus ()); |
| 236 | if (win_info) |
| 237 | { |
| 238 | tui_set_win_focus_to (win_info); |
| 239 | if (TUI_DATA_WIN && TUI_DATA_WIN->is_visible) |
| 240 | TUI_DATA_WIN->refresh_all (); |
| 241 | keypad (TUI_CMD_WIN->handle, (win_info != TUI_CMD_WIN)); |
| 242 | } |
| 243 | return 0; |
| 244 | } |
| 245 | |
| 246 | /* TUI readline command. |
| 247 | Execute the gdb command bound to the specified key. */ |
| 248 | static int |
| 249 | tui_rl_command_key (int count, int key) |
| 250 | { |
| 251 | int i; |
| 252 | |
| 253 | reinitialize_more_filter (); |
| 254 | for (i = 0; tui_commands[i].cmd; i++) |
| 255 | { |
| 256 | if (tui_commands[i].key == key) |
| 257 | { |
| 258 | /* Insert the command in the readline buffer. |
| 259 | Avoid calling the gdb command here since it creates |
| 260 | a possible recursion on readline if prompt_for_continue |
| 261 | is called (See PR 9584). The command will also appear |
| 262 | in the readline history which turns out to be better. */ |
| 263 | rl_insert_text (tui_commands[i].cmd); |
| 264 | rl_newline (1, '\n'); |
| 265 | |
| 266 | /* Switch to gdb command mode while executing the command. |
| 267 | This way the gdb's continue prompty will be displayed. */ |
| 268 | tui_set_key_mode (TUI_ONE_COMMAND_MODE); |
| 269 | return 0; |
| 270 | } |
| 271 | } |
| 272 | return 0; |
| 273 | } |
| 274 | |
| 275 | /* TUI readline command. |
| 276 | Temporarily leave the TUI SingleKey mode to allow editing |
| 277 | a gdb command with the normal readline. Once the command |
| 278 | is executed, the TUI SingleKey mode is installed back. */ |
| 279 | static int |
| 280 | tui_rl_command_mode (int count, int key) |
| 281 | { |
| 282 | tui_set_key_mode (TUI_ONE_COMMAND_MODE); |
| 283 | return rl_insert (count, key); |
| 284 | } |
| 285 | |
| 286 | /* TUI readline command. |
| 287 | Switch between TUI SingleKey mode and gdb readline editing. */ |
| 288 | static int |
| 289 | tui_rl_next_keymap (int notused1, int notused2) |
| 290 | { |
| 291 | if (!tui_active) |
| 292 | tui_rl_switch_mode (0 /* notused */, 0 /* notused */); |
| 293 | |
| 294 | tui_set_key_mode (tui_current_key_mode == TUI_COMMAND_MODE |
| 295 | ? TUI_SINGLE_KEY_MODE : TUI_COMMAND_MODE); |
| 296 | return 0; |
| 297 | } |
| 298 | |
| 299 | /* Readline hook to redisplay ourself the gdb prompt. |
| 300 | In the SingleKey mode, the prompt is not printed so that |
| 301 | the command window is cleaner. It will be displayed if |
| 302 | we temporarily leave the SingleKey mode. */ |
| 303 | static int |
| 304 | tui_rl_startup_hook (void) |
| 305 | { |
| 306 | rl_already_prompted = 1; |
| 307 | if (tui_current_key_mode != TUI_COMMAND_MODE |
| 308 | && !gdb_in_secondary_prompt_p (current_ui)) |
| 309 | tui_set_key_mode (TUI_SINGLE_KEY_MODE); |
| 310 | tui_redisplay_readline (); |
| 311 | return 0; |
| 312 | } |
| 313 | |
| 314 | /* Change the TUI key mode by installing the appropriate readline |
| 315 | keymap. */ |
| 316 | void |
| 317 | tui_set_key_mode (enum tui_key_mode mode) |
| 318 | { |
| 319 | tui_current_key_mode = mode; |
| 320 | rl_set_keymap (mode == TUI_SINGLE_KEY_MODE |
| 321 | ? tui_keymap : tui_readline_standard_keymap); |
| 322 | tui_show_locator_content (); |
| 323 | } |
| 324 | |
| 325 | /* Initialize readline and configure the keymap for the switching |
| 326 | key shortcut. */ |
| 327 | void |
| 328 | tui_initialize_readline (void) |
| 329 | { |
| 330 | int i; |
| 331 | Keymap tui_ctlx_keymap; |
| 332 | |
| 333 | rl_initialize (); |
| 334 | |
| 335 | rl_add_defun ("tui-switch-mode", tui_rl_switch_mode, -1); |
| 336 | rl_add_defun ("gdb-command", tui_rl_command_key, -1); |
| 337 | rl_add_defun ("next-keymap", tui_rl_next_keymap, -1); |
| 338 | |
| 339 | tui_keymap = rl_make_bare_keymap (); |
| 340 | tui_ctlx_keymap = rl_make_bare_keymap (); |
| 341 | tui_readline_standard_keymap = rl_get_keymap (); |
| 342 | |
| 343 | for (i = 0; tui_commands[i].cmd; i++) |
| 344 | rl_bind_key_in_map (tui_commands[i].key, tui_rl_command_key, tui_keymap); |
| 345 | |
| 346 | rl_generic_bind (ISKMAP, "\\C-x", (char*) tui_ctlx_keymap, tui_keymap); |
| 347 | |
| 348 | /* Bind all other keys to tui_rl_command_mode so that we switch |
| 349 | temporarily from SingleKey mode and can enter a gdb command. */ |
| 350 | for (i = ' '; i < 0x7f; i++) |
| 351 | { |
| 352 | int j; |
| 353 | |
| 354 | for (j = 0; tui_commands[j].cmd; j++) |
| 355 | if (tui_commands[j].key == i) |
| 356 | break; |
| 357 | |
| 358 | if (tui_commands[j].cmd) |
| 359 | continue; |
| 360 | |
| 361 | rl_bind_key_in_map (i, tui_rl_command_mode, tui_keymap); |
| 362 | } |
| 363 | |
| 364 | rl_bind_key_in_map ('a', tui_rl_switch_mode, emacs_ctlx_keymap); |
| 365 | rl_bind_key_in_map ('a', tui_rl_switch_mode, tui_ctlx_keymap); |
| 366 | rl_bind_key_in_map ('A', tui_rl_switch_mode, emacs_ctlx_keymap); |
| 367 | rl_bind_key_in_map ('A', tui_rl_switch_mode, tui_ctlx_keymap); |
| 368 | rl_bind_key_in_map (CTRL ('A'), tui_rl_switch_mode, emacs_ctlx_keymap); |
| 369 | rl_bind_key_in_map (CTRL ('A'), tui_rl_switch_mode, tui_ctlx_keymap); |
| 370 | rl_bind_key_in_map ('1', tui_rl_delete_other_windows, emacs_ctlx_keymap); |
| 371 | rl_bind_key_in_map ('1', tui_rl_delete_other_windows, tui_ctlx_keymap); |
| 372 | rl_bind_key_in_map ('2', tui_rl_change_windows, emacs_ctlx_keymap); |
| 373 | rl_bind_key_in_map ('2', tui_rl_change_windows, tui_ctlx_keymap); |
| 374 | rl_bind_key_in_map ('o', tui_rl_other_window, emacs_ctlx_keymap); |
| 375 | rl_bind_key_in_map ('o', tui_rl_other_window, tui_ctlx_keymap); |
| 376 | rl_bind_key_in_map ('q', tui_rl_next_keymap, tui_keymap); |
| 377 | rl_bind_key_in_map ('s', tui_rl_next_keymap, emacs_ctlx_keymap); |
| 378 | rl_bind_key_in_map ('s', tui_rl_next_keymap, tui_ctlx_keymap); |
| 379 | } |
| 380 | |
| 381 | /* Return the TERM variable from the environment, or "<unset>" |
| 382 | if not set. */ |
| 383 | |
| 384 | static const char * |
| 385 | gdb_getenv_term (void) |
| 386 | { |
| 387 | const char *term; |
| 388 | |
| 389 | term = getenv ("TERM"); |
| 390 | if (term != NULL) |
| 391 | return term; |
| 392 | return "<unset>"; |
| 393 | } |
| 394 | |
| 395 | /* Enter in the tui mode (curses). |
| 396 | When in normal mode, it installs the tui hooks in gdb, redirects |
| 397 | the gdb output, configures the readline to work in tui mode. |
| 398 | When in curses mode, it does nothing. */ |
| 399 | void |
| 400 | tui_enable (void) |
| 401 | { |
| 402 | if (tui_active) |
| 403 | return; |
| 404 | |
| 405 | /* To avoid to initialize curses when gdb starts, there is a defered |
| 406 | curses initialization. This initialization is made only once |
| 407 | and the first time the curses mode is entered. */ |
| 408 | if (tui_finish_init) |
| 409 | { |
| 410 | WINDOW *w; |
| 411 | SCREEN *s; |
| 412 | #ifndef __MINGW32__ |
| 413 | const char *cap; |
| 414 | #endif |
| 415 | const char *interp; |
| 416 | |
| 417 | /* If the top level interpreter is not the console/tui (e.g., |
| 418 | MI), enabling curses will certainly lose. */ |
| 419 | interp = top_level_interpreter ()->name (); |
| 420 | if (strcmp (interp, INTERP_TUI) != 0) |
| 421 | error (_("Cannot enable the TUI when the interpreter is '%s'"), interp); |
| 422 | |
| 423 | /* Don't try to setup curses (and print funny control |
| 424 | characters) if we're not outputting to a terminal. */ |
| 425 | if (!ui_file_isatty (gdb_stdout)) |
| 426 | error (_("Cannot enable the TUI when output is not a terminal")); |
| 427 | |
| 428 | s = newterm (NULL, stdout, stdin); |
| 429 | #ifdef __MINGW32__ |
| 430 | /* The MinGW port of ncurses requires $TERM to be unset in order |
| 431 | to activate the Windows console driver. */ |
| 432 | if (s == NULL) |
| 433 | s = newterm ((char *) "unknown", stdout, stdin); |
| 434 | #endif |
| 435 | if (s == NULL) |
| 436 | { |
| 437 | error (_("Cannot enable the TUI: error opening terminal [TERM=%s]"), |
| 438 | gdb_getenv_term ()); |
| 439 | } |
| 440 | w = stdscr; |
| 441 | if (has_colors ()) |
| 442 | { |
| 443 | #ifdef HAVE_USE_DEFAULT_COLORS |
| 444 | /* Ncurses extension to help with resetting to the default |
| 445 | color. */ |
| 446 | use_default_colors (); |
| 447 | #endif |
| 448 | start_color (); |
| 449 | } |
| 450 | |
| 451 | /* Check required terminal capabilities. The MinGW port of |
| 452 | ncurses does have them, but doesn't expose them through "cup". */ |
| 453 | #ifndef __MINGW32__ |
| 454 | cap = tigetstr ((char *) "cup"); |
| 455 | if (cap == NULL || cap == (char *) -1 || *cap == '\0') |
| 456 | { |
| 457 | endwin (); |
| 458 | delscreen (s); |
| 459 | error (_("Cannot enable the TUI: " |
| 460 | "terminal doesn't support cursor addressing [TERM=%s]"), |
| 461 | gdb_getenv_term ()); |
| 462 | } |
| 463 | #endif |
| 464 | |
| 465 | cbreak (); |
| 466 | noecho (); |
| 467 | /* timeout (1); */ |
| 468 | nodelay(w, FALSE); |
| 469 | nl(); |
| 470 | keypad (w, TRUE); |
| 471 | rl_initialize (); |
| 472 | tui_set_term_height_to (LINES); |
| 473 | tui_set_term_width_to (COLS); |
| 474 | def_prog_mode (); |
| 475 | |
| 476 | tui_show_frame_info (0); |
| 477 | tui_set_layout (SRC_COMMAND); |
| 478 | tui_set_win_focus_to (TUI_SRC_WIN); |
| 479 | keypad (TUI_CMD_WIN->handle, TRUE); |
| 480 | wrefresh (TUI_CMD_WIN->handle); |
| 481 | tui_finish_init = 0; |
| 482 | } |
| 483 | else |
| 484 | { |
| 485 | /* Save the current gdb setting of the terminal. |
| 486 | Curses will restore this state when endwin() is called. */ |
| 487 | def_shell_mode (); |
| 488 | clearok (stdscr, TRUE); |
| 489 | } |
| 490 | |
| 491 | /* Install the TUI specific hooks. */ |
| 492 | tui_install_hooks (); |
| 493 | rl_startup_hook = tui_rl_startup_hook; |
| 494 | |
| 495 | tui_update_variables (); |
| 496 | |
| 497 | tui_setup_io (1); |
| 498 | |
| 499 | tui_active = 1; |
| 500 | |
| 501 | /* Resize windows before anything might display/refresh a |
| 502 | window. */ |
| 503 | if (tui_win_resized ()) |
| 504 | { |
| 505 | tui_set_win_resized_to (FALSE); |
| 506 | tui_resize_all (); |
| 507 | } |
| 508 | |
| 509 | if (deprecated_safe_get_selected_frame ()) |
| 510 | tui_show_frame_info (deprecated_safe_get_selected_frame ()); |
| 511 | |
| 512 | /* Restore TUI keymap. */ |
| 513 | tui_set_key_mode (tui_current_key_mode); |
| 514 | |
| 515 | /* Refresh the screen. */ |
| 516 | tui_refresh_all_win (); |
| 517 | |
| 518 | /* Update gdb's knowledge of its terminal. */ |
| 519 | gdb_save_tty_state (); |
| 520 | tui_update_gdb_sizes (); |
| 521 | } |
| 522 | |
| 523 | /* Leave the tui mode. |
| 524 | Remove the tui hooks and configure the gdb output and readline |
| 525 | back to their original state. The curses mode is left so that |
| 526 | the terminal setting is restored to the point when we entered. */ |
| 527 | void |
| 528 | tui_disable (void) |
| 529 | { |
| 530 | if (!tui_active) |
| 531 | return; |
| 532 | |
| 533 | /* Restore initial readline keymap. */ |
| 534 | rl_set_keymap (tui_readline_standard_keymap); |
| 535 | |
| 536 | /* Remove TUI hooks. */ |
| 537 | tui_remove_hooks (); |
| 538 | rl_startup_hook = 0; |
| 539 | rl_already_prompted = 0; |
| 540 | |
| 541 | /* Leave curses and restore previous gdb terminal setting. */ |
| 542 | endwin (); |
| 543 | |
| 544 | /* gdb terminal has changed, update gdb internal copy of it |
| 545 | so that terminal management with the inferior works. */ |
| 546 | tui_setup_io (0); |
| 547 | |
| 548 | /* Update gdb's knowledge of its terminal. */ |
| 549 | gdb_save_tty_state (); |
| 550 | |
| 551 | tui_active = 0; |
| 552 | tui_update_gdb_sizes (); |
| 553 | } |
| 554 | |
| 555 | /* Command wrapper for enabling tui mode. */ |
| 556 | |
| 557 | static void |
| 558 | tui_enable_command (const char *args, int from_tty) |
| 559 | { |
| 560 | tui_enable (); |
| 561 | } |
| 562 | |
| 563 | /* Command wrapper for leaving tui mode. */ |
| 564 | |
| 565 | static void |
| 566 | tui_disable_command (const char *args, int from_tty) |
| 567 | { |
| 568 | tui_disable (); |
| 569 | } |
| 570 | |
| 571 | void |
| 572 | strcat_to_buf (char *buf, int buflen, |
| 573 | const char *item_to_add) |
| 574 | { |
| 575 | if (item_to_add != NULL && buf != NULL) |
| 576 | { |
| 577 | if ((strlen (buf) + strlen (item_to_add)) <= buflen) |
| 578 | strcat (buf, item_to_add); |
| 579 | else |
| 580 | strncat (buf, item_to_add, (buflen - strlen (buf))); |
| 581 | } |
| 582 | } |
| 583 | |
| 584 | #if 0 |
| 585 | /* Solaris <sys/termios.h> defines CTRL. */ |
| 586 | #ifndef CTRL |
| 587 | #define CTRL(x) (x & ~0140) |
| 588 | #endif |
| 589 | |
| 590 | #define FILEDES 2 |
| 591 | #define CHK(val, dft) (val<=0 ? dft : val) |
| 592 | |
| 593 | static void |
| 594 | tui_reset (void) |
| 595 | { |
| 596 | struct termio mode; |
| 597 | |
| 598 | /* Reset the teletype mode bits to a sensible state. |
| 599 | Copied tset.c. */ |
| 600 | #if defined (TIOCGETC) |
| 601 | struct tchars tbuf; |
| 602 | #endif /* TIOCGETC */ |
| 603 | #ifdef UCB_NTTY |
| 604 | struct ltchars ltc; |
| 605 | |
| 606 | if (ldisc == NTTYDISC) |
| 607 | { |
| 608 | ioctl (FILEDES, TIOCGLTC, <c); |
| 609 | ltc.t_suspc = CHK (ltc.t_suspc, CTRL ('Z')); |
| 610 | ltc.t_dsuspc = CHK (ltc.t_dsuspc, CTRL ('Y')); |
| 611 | ltc.t_rprntc = CHK (ltc.t_rprntc, CTRL ('R')); |
| 612 | ltc.t_flushc = CHK (ltc.t_flushc, CTRL ('O')); |
| 613 | ltc.t_werasc = CHK (ltc.t_werasc, CTRL ('W')); |
| 614 | ltc.t_lnextc = CHK (ltc.t_lnextc, CTRL ('V')); |
| 615 | ioctl (FILEDES, TIOCSLTC, <c); |
| 616 | } |
| 617 | #endif /* UCB_NTTY */ |
| 618 | #ifdef TIOCGETC |
| 619 | ioctl (FILEDES, TIOCGETC, &tbuf); |
| 620 | tbuf.t_intrc = CHK (tbuf.t_intrc, CTRL ('?')); |
| 621 | tbuf.t_quitc = CHK (tbuf.t_quitc, CTRL ('\\')); |
| 622 | tbuf.t_startc = CHK (tbuf.t_startc, CTRL ('Q')); |
| 623 | tbuf.t_stopc = CHK (tbuf.t_stopc, CTRL ('S')); |
| 624 | tbuf.t_eofc = CHK (tbuf.t_eofc, CTRL ('D')); |
| 625 | /* brkc is left alone. */ |
| 626 | ioctl (FILEDES, TIOCSETC, &tbuf); |
| 627 | #endif /* TIOCGETC */ |
| 628 | mode.sg_flags &= ~(RAW |
| 629 | #ifdef CBREAK |
| 630 | | CBREAK |
| 631 | #endif /* CBREAK */ |
| 632 | | VTDELAY | ALLDELAY); |
| 633 | mode.sg_flags |= XTABS | ECHO | CRMOD | ANYP; |
| 634 | |
| 635 | return; |
| 636 | } |
| 637 | #endif |
| 638 | |
| 639 | void |
| 640 | tui_show_source (const char *fullname, int line) |
| 641 | { |
| 642 | struct symtab_and_line cursal = get_current_source_symtab_and_line (); |
| 643 | |
| 644 | /* Make sure that the source window is displayed. */ |
| 645 | tui_add_win_to_layout (SRC_WIN); |
| 646 | |
| 647 | tui_update_source_windows_with_line (cursal.symtab, line); |
| 648 | tui_update_locator_fullname (fullname); |
| 649 | } |
| 650 | |
| 651 | void |
| 652 | tui_show_assembly (struct gdbarch *gdbarch, CORE_ADDR addr) |
| 653 | { |
| 654 | tui_add_win_to_layout (DISASSEM_WIN); |
| 655 | tui_update_source_windows_with_addr (gdbarch, addr); |
| 656 | } |
| 657 | |
| 658 | bool |
| 659 | tui_is_window_visible (enum tui_win_type type) |
| 660 | { |
| 661 | if (tui_active == 0) |
| 662 | return false; |
| 663 | |
| 664 | if (tui_win_list[type] == 0) |
| 665 | return false; |
| 666 | |
| 667 | return tui_win_list[type]->is_visible; |
| 668 | } |
| 669 | |
| 670 | int |
| 671 | tui_get_command_dimension (unsigned int *width, |
| 672 | unsigned int *height) |
| 673 | { |
| 674 | if (!tui_active || (TUI_CMD_WIN == NULL)) |
| 675 | { |
| 676 | return 0; |
| 677 | } |
| 678 | |
| 679 | *width = TUI_CMD_WIN->width; |
| 680 | *height = TUI_CMD_WIN->height; |
| 681 | return 1; |
| 682 | } |
| 683 | |
| 684 | void |
| 685 | _initialize_tui (void) |
| 686 | { |
| 687 | struct cmd_list_element **tuicmd; |
| 688 | |
| 689 | tuicmd = tui_get_cmd_list (); |
| 690 | |
| 691 | add_cmd ("enable", class_tui, tui_enable_command, |
| 692 | _("Enable TUI display mode."), |
| 693 | tuicmd); |
| 694 | add_cmd ("disable", class_tui, tui_disable_command, |
| 695 | _("Disable TUI display mode."), |
| 696 | tuicmd); |
| 697 | } |