gdb/tui/tui-data.h

   1 /* TUI data manipulation routines.
   2
   3    Copyright (C) 1998-2015 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 #ifndef TUI_DATA_H
  23 #define TUI_DATA_H
  24
  25 #include "tui/tui.h"    /* For enum tui_win_type.  */
  26 #include "gdb_curses.h" /* For WINDOW.  */
  27
  28 /* This is a point definition.  */
  29 struct tui_point
  30 {
  31   int x, y;
  32 };
  33
  34 struct tui_win_element;
  35
  36 /* This describes the content of the window.  */
  37 typedef struct tui_win_element **tui_win_content;
  38
  39 /* Generic window information.  */
  40 struct tui_gen_win_info
  41 {
  42   WINDOW *handle;           /* Window handle.  */
  43   enum tui_win_type type;   /* Type of window.  */
  44   int width;                /* Window width.  */
  45   int height;               /* Window height.  */
  46   struct tui_point origin;  /* Origin of window.  */
  47   tui_win_content content;  /* Content of window.  */
  48   int content_size;         /* Size of content (# of elements).  */
  49   int content_in_use;       /* Can it be used, or is it already used?  */
  50   int viewport_height;      /* Viewport height.  */
  51   int last_visible_line;    /* Index of last visible line.  */
  52   int is_visible;           /* Whether the window is visible or not.  */
  53   char *title;              /* Window title to display.  */
  54 };
  55
  56 /* Constant definitions.  */
  57 #define DEFAULT_TAB_LEN         8
  58 #define NO_SRC_STRING           "[ No Source Available ]"
  59 #define NO_DISASSEM_STRING      "[ No Assembly Available ]"
  60 #define NO_REGS_STRING          "[ Register Values Unavailable ]"
  61 #define NO_DATA_STRING          "[ No Data Values Displayed ]"
  62 #define MAX_CONTENT_COUNT       100
  63 #define SRC_NAME                "SRC"
  64 #define CMD_NAME                "CMD"
  65 #define DATA_NAME               "REGS"
  66 #define DISASSEM_NAME           "ASM"
  67 #define TUI_NULL_STR            ""
  68 #define DEFAULT_HISTORY_COUNT   25
  69 #define BOX_WINDOW              TRUE
  70 #define DONT_BOX_WINDOW         FALSE
  71 #define HILITE                  TRUE
  72 #define NO_HILITE               FALSE
  73 #define WITH_LOCATOR            TRUE
  74 #define NO_LOCATOR              FALSE
  75 #define EMPTY_SOURCE_PROMPT     TRUE
  76 #define NO_EMPTY_SOURCE_PROMPT  FALSE
  77 #define UNDEFINED_ITEM          -1
  78 #define MIN_WIN_HEIGHT          3
  79 #define MIN_CMD_WIN_HEIGHT      3
  80
  81 /* Strings to display in the TUI status line.  */
  82 #define PROC_PREFIX             "In: "
  83 #define LINE_PREFIX             "L"
  84 #define PC_PREFIX               "PC: "
  85 #define SINGLE_KEY              "(SingleKey)"
  86
  87 /* Minimum/Maximum length of some fields displayed in the TUI status
  88    line.  */
  89 #define MIN_LINE_WIDTH     4    /* Use at least 4 digits for line
  90                                    numbers.  */
  91 #define MIN_PROC_WIDTH    12
  92 #define MAX_TARGET_WIDTH  10
  93 #define MAX_PID_WIDTH     19
  94
  95 #define TUI_FLOAT_REGS_NAME                  "$FREGS"
  96 #define TUI_FLOAT_REGS_NAME_LOWER            "$fregs"
  97 #define TUI_GENERAL_REGS_NAME                "$GREGS"
  98 #define TUI_GENERAL_REGS_NAME_LOWER          "$gregs"
  99 #define TUI_SPECIAL_REGS_NAME                "$SREGS"
 100 #define TUI_SPECIAL_REGS_NAME_LOWER          "$sregs"
 101 #define TUI_GENERAL_SPECIAL_REGS_NAME        "$REGS"
 102 #define TUI_GENERAL_SPECIAL_REGS_NAME_LOWER  "$regs"
 103
 104 /* Scroll direction enum.  */
 105 enum tui_scroll_direction
 106 {
 107   FORWARD_SCROLL,
 108   BACKWARD_SCROLL,
 109   LEFT_SCROLL,
 110   RIGHT_SCROLL
 111 };
 112
 113
 114 /* General list struct.  */
 115 struct tui_list
 116 {
 117   struct tui_win_info **list;
 118   int count;
 119 };
 120
 121
 122 /* The kinds of layouts available.  */
 123 enum tui_layout_type
 124 {
 125   SRC_COMMAND,
 126   DISASSEM_COMMAND,
 127   SRC_DISASSEM_COMMAND,
 128   SRC_DATA_COMMAND,
 129   DISASSEM_DATA_COMMAND,
 130   UNDEFINED_LAYOUT
 131 };
 132
 133 /* Basic data types that can be displayed in the data window.  */
 134 enum tui_data_type
 135 {
 136   TUI_REGISTER,
 137   TUI_SCALAR,
 138   TUI_COMPLEX,
 139   TUI_STRUCT
 140 };
 141
 142 /* Types of register displays.  */
 143 enum tui_register_display_type
 144 {
 145   TUI_UNDEFINED_REGS,
 146   TUI_GENERAL_REGS,
 147   TUI_SFLOAT_REGS,
 148   TUI_DFLOAT_REGS,
 149   TUI_SPECIAL_REGS,
 150   TUI_GENERAL_AND_SPECIAL_REGS
 151 };
 152
 153 enum tui_line_or_address_kind
 154 {
 155   LOA_LINE,
 156   LOA_ADDRESS
 157 };
 158
 159 /* Structure describing source line or line address.  */
 160 struct tui_line_or_address
 161 {
 162   enum tui_line_or_address_kind loa;
 163   union
 164     {
 165       int line_no;
 166       CORE_ADDR addr;
 167     } u;
 168 };
 169
 170 /* Current Layout definition.  */
 171 struct tui_layout_def
 172 {
 173   enum tui_win_type display_mode;
 174   int split;
 175   enum tui_register_display_type regs_display_type;
 176   enum tui_register_display_type float_regs_display_type;
 177 };
 178
 179 /* Elements in the Source/Disassembly Window.  */
 180 struct tui_source_element
 181 {
 182   char *line;
 183   struct tui_line_or_address line_or_addr;
 184   int is_exec_point;
 185   int has_break;
 186 };
 187
 188
 189 /* Elements in the data display window content.  */
 190 struct tui_data_element
 191 {
 192   const char *name;
 193   int item_no;          /* The register number, or data display
 194                            number.  */
 195   enum tui_data_type type;
 196   void *value;
 197   int highlight;
 198   char *content;
 199 };
 200
 201
 202 /* Elements in the command window content.  */
 203 struct tui_command_element
 204 {
 205   char *line;
 206 };
 207
 208 #ifdef PATH_MAX
 209 # define MAX_LOCATOR_ELEMENT_LEN        PATH_MAX
 210 #else
 211 # define MAX_LOCATOR_ELEMENT_LEN        1024
 212 #endif
 213
 214 /* Elements in the locator window content.  */
 215 struct tui_locator_element
 216 {
 217   /* Resolved absolute filename as returned by symtab_to_fullname.  */
 218   char full_name[MAX_LOCATOR_ELEMENT_LEN];
 219   char proc_name[MAX_LOCATOR_ELEMENT_LEN];
 220   int line_no;
 221   CORE_ADDR addr;
 222   /* Architecture associated with code at this location.  */
 223   struct gdbarch *gdbarch;
 224 };
 225
 226 /* Flags to tell what kind of breakpoint is at current line.  */
 227 #define TUI_BP_ENABLED      0x01
 228 #define TUI_BP_DISABLED     0x02
 229 #define TUI_BP_HIT          0x04
 230 #define TUI_BP_CONDITIONAL  0x08
 231 #define TUI_BP_HARDWARE     0x10
 232
 233 /* Position of breakpoint markers in the exec info string.  */
 234 #define TUI_BP_HIT_POS      0
 235 #define TUI_BP_BREAK_POS    1
 236 #define TUI_EXEC_POS        2
 237 #define TUI_EXECINFO_SIZE   4
 238
 239 typedef char tui_exec_info_content[TUI_EXECINFO_SIZE];
 240
 241 /* An content element in a window.  */
 242 union tui_which_element
 243 {
 244   struct tui_source_element source;     /* The source elements.  */
 245   struct tui_gen_win_info data_window;  /* Data display elements.  */
 246   struct tui_data_element data;         /* Elements of data_window.  */
 247   struct tui_command_element command;   /* Command elements.  */
 248   struct tui_locator_element locator;   /* Locator elements.  */
 249   tui_exec_info_content simple_string;  /* Simple char based elements.  */
 250 };
 251
 252 struct tui_win_element
 253 {
 254   int highlight;
 255   union tui_which_element which_element;
 256 };
 257
 258 /* This struct defines the specific information about a data display
 259    window.  */
 260 struct tui_data_info
 261 {
 262   tui_win_content data_content; /* Start of data display content.  */
 263   int data_content_count;
 264   tui_win_content regs_content; /* Start of regs display content.  */
 265   int regs_content_count;
 266   enum tui_register_display_type regs_display_type;
 267   int regs_column_count;
 268   int display_regs;             /* Should regs be displayed at all?  */
 269   struct reggroup *current_group;
 270 };
 271
 272
 273 struct tui_source_info
 274 {
 275   int has_locator;              /* Does locator belongs to this window?  */
 276   /* Execution information window.  */
 277   struct tui_gen_win_info *execution_info;
 278   int horizontal_offset;        /* Used for horizontal scroll.  */
 279   struct tui_line_or_address start_line_or_addr;
 280
 281   /* It is the resolved form as returned by symtab_to_fullname.  */
 282   char *fullname;
 283
 284   /* Architecture associated with code at this location.  */
 285   struct gdbarch *gdbarch;
 286 };
 287
 288
 289 struct tui_command_info
 290 {
 291   int cur_line;                 /* The current line position.  */
 292   int curch;                    /* The current cursor position.  */
 293   int start_line;
 294 };
 295
 296
 297 /* This defines information about each logical window.  */
 298 struct tui_win_info
 299 {
 300   struct tui_gen_win_info generic;      /* General window information.  */
 301   union
 302   {
 303     struct tui_source_info source_info;
 304     struct tui_data_info data_display_info;
 305     struct tui_command_info command_info;
 306     void *opaque;
 307   }
 308   detail;
 309   int can_highlight;    /* Can this window ever be highlighted?  */
 310   int is_highlighted;   /* Is this window highlighted?  */
 311 };
 312
 313 extern int tui_win_is_source_type (enum tui_win_type win_type);
 314 extern int tui_win_is_auxillary (enum tui_win_type win_type);
 315 extern int tui_win_has_locator (struct tui_win_info *win_info);
 316 extern void tui_set_win_highlight (struct tui_win_info *win_info,
 317                                    int highlight);
 318
 319
 320 /* Global Data.  */
 321 extern struct tui_win_info *(tui_win_list[MAX_MAJOR_WINDOWS]);
 322
 323 #define TUI_SRC_WIN     tui_win_list[SRC_WIN]
 324 #define TUI_DISASM_WIN  tui_win_list[DISASSEM_WIN]
 325 #define TUI_DATA_WIN    tui_win_list[DATA_WIN]
 326 #define TUI_CMD_WIN     tui_win_list[CMD_WIN]
 327
 328 /* Data Manipulation Functions.  */
 329 extern void tui_initialize_static_data (void);
 330 extern struct tui_gen_win_info *tui_alloc_generic_win_info (void);
 331 extern struct tui_win_info *tui_alloc_win_info (enum tui_win_type);
 332 extern void tui_init_generic_part (struct tui_gen_win_info *);
 333 extern void tui_init_win_info (struct tui_win_info *);
 334 extern tui_win_content tui_alloc_content (int, enum tui_win_type);
 335 extern int tui_add_content_elements (struct tui_gen_win_info *,
 336                                      int);
 337 extern void tui_init_content_element (struct tui_win_element *,
 338                                       enum tui_win_type);
 339 extern void tui_free_window (struct tui_win_info *);
 340 extern void tui_free_win_content (struct tui_gen_win_info *);
 341 extern void tui_free_data_content (tui_win_content, int);
 342 extern void tui_free_all_source_wins_content (void);
 343 extern void tui_del_window (struct tui_win_info *);
 344 extern void tui_del_data_windows (tui_win_content, int);
 345 extern struct tui_win_info *tui_partial_win_by_name (char *);
 346 extern char *tui_win_name (struct tui_gen_win_info *);
 347 extern enum tui_layout_type tui_current_layout (void);
 348 extern void tui_set_current_layout_to (enum tui_layout_type);
 349 extern int tui_term_height (void);
 350 extern void tui_set_term_height_to (int);
 351 extern int tui_term_width (void);
 352 extern void tui_set_term_width_to (int);
 353 extern struct tui_gen_win_info *tui_locator_win_info_ptr (void);
 354 extern struct tui_gen_win_info *tui_source_exec_info_win_ptr (void);
 355 extern struct tui_gen_win_info *tui_disassem_exec_info_win_ptr (void);
 356 extern struct tui_list *tui_source_windows (void);
 357 extern void tui_clear_source_windows (void);
 358 extern void tui_clear_source_windows_detail (void);
 359 extern void tui_clear_win_detail (struct tui_win_info *);
 360 extern void tui_add_to_source_windows (struct tui_win_info *);
 361 extern int tui_default_tab_len (void);
 362 extern void tui_set_default_tab_len (int);
 363 extern struct tui_win_info *tui_win_with_focus (void);
 364 extern void tui_set_win_with_focus (struct tui_win_info *);
 365 extern struct tui_layout_def *tui_layout_def (void);
 366 extern int tui_win_resized (void);
 367 extern void tui_set_win_resized_to (int);
 368
 369 extern struct tui_win_info *tui_next_win (struct tui_win_info *);
 370 extern struct tui_win_info *tui_prev_win (struct tui_win_info *);
 371
 372 extern void tui_add_to_source_windows (struct tui_win_info *);
 373
 374 #endif /* TUI_DATA_H */