gdb/tui/tui-data.h

   1 /* TUI data manipulation routines.
   2
   3    Copyright (C) 1998-2016 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 /* Scroll direction enum.  */
  96 enum tui_scroll_direction
  97 {
  98   FORWARD_SCROLL,
  99   BACKWARD_SCROLL,
 100   LEFT_SCROLL,
 101   RIGHT_SCROLL
 102 };
 103
 104
 105 /* General list struct.  */
 106 struct tui_list
 107 {
 108   struct tui_win_info **list;
 109   int count;
 110 };
 111
 112
 113 /* The kinds of layouts available.  */
 114 enum tui_layout_type
 115 {
 116   SRC_COMMAND,
 117   DISASSEM_COMMAND,
 118   SRC_DISASSEM_COMMAND,
 119   SRC_DATA_COMMAND,
 120   DISASSEM_DATA_COMMAND,
 121   UNDEFINED_LAYOUT
 122 };
 123
 124 /* Basic data types that can be displayed in the data window.  */
 125 enum tui_data_type
 126 {
 127   TUI_REGISTER,
 128   TUI_SCALAR,
 129   TUI_COMPLEX,
 130   TUI_STRUCT
 131 };
 132
 133 enum tui_line_or_address_kind
 134 {
 135   LOA_LINE,
 136   LOA_ADDRESS
 137 };
 138
 139 /* Structure describing source line or line address.  */
 140 struct tui_line_or_address
 141 {
 142   enum tui_line_or_address_kind loa;
 143   union
 144     {
 145       int line_no;
 146       CORE_ADDR addr;
 147     } u;
 148 };
 149
 150 /* Current Layout definition.  */
 151 struct tui_layout_def
 152 {
 153   enum tui_win_type display_mode;
 154   int split;
 155 };
 156
 157 /* Elements in the Source/Disassembly Window.  */
 158 struct tui_source_element
 159 {
 160   char *line;
 161   struct tui_line_or_address line_or_addr;
 162   int is_exec_point;
 163   int has_break;
 164 };
 165
 166
 167 /* Elements in the data display window content.  */
 168 struct tui_data_element
 169 {
 170   const char *name;
 171   int item_no;          /* The register number, or data display
 172                            number.  */
 173   enum tui_data_type type;
 174   void *value;
 175   int highlight;
 176   char *content;
 177 };
 178
 179
 180 /* Elements in the command window content.  */
 181 struct tui_command_element
 182 {
 183   char *line;
 184 };
 185
 186 #ifdef PATH_MAX
 187 # define MAX_LOCATOR_ELEMENT_LEN        PATH_MAX
 188 #else
 189 # define MAX_LOCATOR_ELEMENT_LEN        1024
 190 #endif
 191
 192 /* Elements in the locator window content.  */
 193 struct tui_locator_element
 194 {
 195   /* Resolved absolute filename as returned by symtab_to_fullname.  */
 196   char full_name[MAX_LOCATOR_ELEMENT_LEN];
 197   char proc_name[MAX_LOCATOR_ELEMENT_LEN];
 198   int line_no;
 199   CORE_ADDR addr;
 200   /* Architecture associated with code at this location.  */
 201   struct gdbarch *gdbarch;
 202 };
 203
 204 /* Flags to tell what kind of breakpoint is at current line.  */
 205 #define TUI_BP_ENABLED      0x01
 206 #define TUI_BP_DISABLED     0x02
 207 #define TUI_BP_HIT          0x04
 208 #define TUI_BP_CONDITIONAL  0x08
 209 #define TUI_BP_HARDWARE     0x10
 210
 211 /* Position of breakpoint markers in the exec info string.  */
 212 #define TUI_BP_HIT_POS      0
 213 #define TUI_BP_BREAK_POS    1
 214 #define TUI_EXEC_POS        2
 215 #define TUI_EXECINFO_SIZE   4
 216
 217 typedef char tui_exec_info_content[TUI_EXECINFO_SIZE];
 218
 219 /* An content element in a window.  */
 220 union tui_which_element
 221 {
 222   struct tui_source_element source;     /* The source elements.  */
 223   struct tui_gen_win_info data_window;  /* Data display elements.  */
 224   struct tui_data_element data;         /* Elements of data_window.  */
 225   struct tui_command_element command;   /* Command elements.  */
 226   struct tui_locator_element locator;   /* Locator elements.  */
 227   tui_exec_info_content simple_string;  /* Simple char based elements.  */
 228 };
 229
 230 struct tui_win_element
 231 {
 232   int highlight;
 233   union tui_which_element which_element;
 234 };
 235
 236 /* This struct defines the specific information about a data display
 237    window.  */
 238 struct tui_data_info
 239 {
 240   tui_win_content data_content; /* Start of data display content.  */
 241   int data_content_count;
 242   tui_win_content regs_content; /* Start of regs display content.  */
 243   int regs_content_count;
 244   int regs_column_count;
 245   int display_regs;             /* Should regs be displayed at all?  */
 246   struct reggroup *current_group;
 247 };
 248
 249
 250 struct tui_source_info
 251 {
 252   int has_locator;              /* Does locator belongs to this window?  */
 253   /* Execution information window.  */
 254   struct tui_gen_win_info *execution_info;
 255   int horizontal_offset;        /* Used for horizontal scroll.  */
 256   struct tui_line_or_address start_line_or_addr;
 257
 258   /* It is the resolved form as returned by symtab_to_fullname.  */
 259   char *fullname;
 260
 261   /* Architecture associated with code at this location.  */
 262   struct gdbarch *gdbarch;
 263 };
 264
 265
 266 struct tui_command_info
 267 {
 268   int start_line;
 269 };
 270
 271
 272 /* This defines information about each logical window.  */
 273 struct tui_win_info
 274 {
 275   struct tui_gen_win_info generic;      /* General window information.  */
 276   union
 277   {
 278     struct tui_source_info source_info;
 279     struct tui_data_info data_display_info;
 280     struct tui_command_info command_info;
 281     void *opaque;
 282   }
 283   detail;
 284   int can_highlight;    /* Can this window ever be highlighted?  */
 285   int is_highlighted;   /* Is this window highlighted?  */
 286 };
 287
 288 extern int tui_win_is_source_type (enum tui_win_type win_type);
 289 extern int tui_win_is_auxillary (enum tui_win_type win_type);
 290 extern int tui_win_has_locator (struct tui_win_info *win_info);
 291 extern void tui_set_win_highlight (struct tui_win_info *win_info,
 292                                    int highlight);
 293
 294
 295 /* Global Data.  */
 296 extern struct tui_win_info *(tui_win_list[MAX_MAJOR_WINDOWS]);
 297
 298 #define TUI_SRC_WIN     tui_win_list[SRC_WIN]
 299 #define TUI_DISASM_WIN  tui_win_list[DISASSEM_WIN]
 300 #define TUI_DATA_WIN    tui_win_list[DATA_WIN]
 301 #define TUI_CMD_WIN     tui_win_list[CMD_WIN]
 302
 303 /* Data Manipulation Functions.  */
 304 extern void tui_initialize_static_data (void);
 305 extern struct tui_gen_win_info *tui_alloc_generic_win_info (void);
 306 extern struct tui_win_info *tui_alloc_win_info (enum tui_win_type);
 307 extern void tui_init_generic_part (struct tui_gen_win_info *);
 308 extern void tui_init_win_info (struct tui_win_info *);
 309 extern tui_win_content tui_alloc_content (int, enum tui_win_type);
 310 extern int tui_add_content_elements (struct tui_gen_win_info *,
 311                                      int);
 312 extern void tui_init_content_element (struct tui_win_element *,
 313                                       enum tui_win_type);
 314 extern void tui_free_window (struct tui_win_info *);
 315 extern void tui_free_win_content (struct tui_gen_win_info *);
 316 extern void tui_free_data_content (tui_win_content, int);
 317 extern void tui_free_all_source_wins_content (void);
 318 extern void tui_del_window (struct tui_win_info *);
 319 extern void tui_del_data_windows (tui_win_content, int);
 320 extern struct tui_win_info *tui_partial_win_by_name (char *);
 321 extern const char *tui_win_name (const struct tui_gen_win_info *);
 322 extern enum tui_layout_type tui_current_layout (void);
 323 extern void tui_set_current_layout_to (enum tui_layout_type);
 324 extern int tui_term_height (void);
 325 extern void tui_set_term_height_to (int);
 326 extern int tui_term_width (void);
 327 extern void tui_set_term_width_to (int);
 328 extern struct tui_gen_win_info *tui_locator_win_info_ptr (void);
 329 extern struct tui_gen_win_info *tui_source_exec_info_win_ptr (void);
 330 extern struct tui_gen_win_info *tui_disassem_exec_info_win_ptr (void);
 331 extern struct tui_list *tui_source_windows (void);
 332 extern void tui_clear_source_windows (void);
 333 extern void tui_clear_source_windows_detail (void);
 334 extern void tui_clear_win_detail (struct tui_win_info *);
 335 extern void tui_add_to_source_windows (struct tui_win_info *);
 336 extern int tui_default_tab_len (void);
 337 extern void tui_set_default_tab_len (int);
 338 extern struct tui_win_info *tui_win_with_focus (void);
 339 extern void tui_set_win_with_focus (struct tui_win_info *);
 340 extern struct tui_layout_def *tui_layout_def (void);
 341 extern int tui_win_resized (void);
 342 extern void tui_set_win_resized_to (int);
 343
 344 extern struct tui_win_info *tui_next_win (struct tui_win_info *);
 345 extern struct tui_win_info *tui_prev_win (struct tui_win_info *);
 346
 347 extern void tui_add_to_source_windows (struct tui_win_info *);
 348
 349 #endif /* TUI_DATA_H */