1130803Smarcel/* GDB hooks for TUI. 2130803Smarcel 3130803Smarcel Copyright 2001, 2002, 2003, 2004 Free Software Foundation, Inc. 4130803Smarcel 5130803Smarcel This file is part of GDB. 6130803Smarcel 7130803Smarcel This program is free software; you can redistribute it and/or modify 8130803Smarcel it under the terms of the GNU General Public License as published by 9130803Smarcel the Free Software Foundation; either version 2 of the License, or 10130803Smarcel (at your option) any later version. 11130803Smarcel 12130803Smarcel This program is distributed in the hope that it will be useful, 13130803Smarcel but WITHOUT ANY WARRANTY; without even the implied warranty of 14130803Smarcel MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15130803Smarcel GNU General Public License for more details. 16130803Smarcel 17130803Smarcel You should have received a copy of the GNU General Public License 18130803Smarcel along with this program; if not, write to the Free Software 19130803Smarcel Foundation, Inc., 59 Temple Place - Suite 330, 20130803Smarcel Boston, MA 02111-1307, USA. */ 21130803Smarcel 22130803Smarcel#include "defs.h" 23130803Smarcel#include "symtab.h" 24130803Smarcel#include "inferior.h" 25130803Smarcel#include "command.h" 26130803Smarcel#include "bfd.h" 27130803Smarcel#include "symfile.h" 28130803Smarcel#include "objfiles.h" 29130803Smarcel#include "target.h" 30130803Smarcel#include "gdbcore.h" 31130803Smarcel#include "event-loop.h" 32130803Smarcel#include "event-top.h" 33130803Smarcel#include "frame.h" 34130803Smarcel#include "breakpoint.h" 35130803Smarcel#include "gdb-events.h" 36130803Smarcel#include "ui-out.h" 37130803Smarcel#include "top.h" 38130803Smarcel#include "readline/readline.h" 39130803Smarcel#include <unistd.h> 40130803Smarcel#include <fcntl.h> 41130803Smarcel 42130803Smarcel#include "tui/tui.h" 43130803Smarcel#include "tui/tui-hooks.h" 44130803Smarcel#include "tui/tui-data.h" 45130803Smarcel#include "tui/tui-layout.h" 46130803Smarcel#include "tui/tui-io.h" 47130803Smarcel#include "tui/tui-regs.h" 48130803Smarcel#include "tui/tui-win.h" 49130803Smarcel#include "tui/tui-stack.h" 50130803Smarcel#include "tui/tui-windata.h" 51130803Smarcel#include "tui/tui-winsource.h" 52130803Smarcel 53130803Smarcel#include "gdb_curses.h" 54130803Smarcel 55130803Smarcelint tui_target_has_run = 0; 56130803Smarcel 57130803Smarcelstatic void (* tui_target_new_objfile_chain) (struct objfile*); 58130803Smarcel 59130803Smarcelstatic void 60130803Smarceltui_new_objfile_hook (struct objfile* objfile) 61130803Smarcel{ 62130803Smarcel if (tui_active) 63130803Smarcel tui_display_main (); 64130803Smarcel 65130803Smarcel if (tui_target_new_objfile_chain) 66130803Smarcel tui_target_new_objfile_chain (objfile); 67130803Smarcel} 68130803Smarcel 69130803Smarcelstatic int 70130803Smarceltui_query_hook (const char * msg, va_list argp) 71130803Smarcel{ 72130803Smarcel int retval; 73130803Smarcel int ans2; 74130803Smarcel int answer; 75130803Smarcel 76130803Smarcel /* Automatically answer "yes" if input is not from a terminal. */ 77130803Smarcel if (!input_from_terminal_p ()) 78130803Smarcel return 1; 79130803Smarcel 80130803Smarcel echo (); 81130803Smarcel while (1) 82130803Smarcel { 83130803Smarcel wrap_here (""); /* Flush any buffered output */ 84130803Smarcel gdb_flush (gdb_stdout); 85130803Smarcel 86130803Smarcel vfprintf_filtered (gdb_stdout, msg, argp); 87130803Smarcel printf_filtered ("(y or n) "); 88130803Smarcel 89130803Smarcel wrap_here (""); 90130803Smarcel gdb_flush (gdb_stdout); 91130803Smarcel 92130803Smarcel answer = tui_getc (stdin); 93130803Smarcel clearerr (stdin); /* in case of C-d */ 94130803Smarcel if (answer == EOF) /* C-d */ 95130803Smarcel { 96130803Smarcel retval = 1; 97130803Smarcel break; 98130803Smarcel } 99130803Smarcel /* Eat rest of input line, to EOF or newline */ 100130803Smarcel if (answer != '\n') 101130803Smarcel do 102130803Smarcel { 103130803Smarcel ans2 = tui_getc (stdin); 104130803Smarcel clearerr (stdin); 105130803Smarcel } 106130803Smarcel while (ans2 != EOF && ans2 != '\n' && ans2 != '\r'); 107130803Smarcel 108130803Smarcel if (answer >= 'a') 109130803Smarcel answer -= 040; 110130803Smarcel if (answer == 'Y') 111130803Smarcel { 112130803Smarcel retval = 1; 113130803Smarcel break; 114130803Smarcel } 115130803Smarcel if (answer == 'N') 116130803Smarcel { 117130803Smarcel retval = 0; 118130803Smarcel break; 119130803Smarcel } 120130803Smarcel printf_filtered ("Please answer y or n.\n"); 121130803Smarcel } 122130803Smarcel noecho (); 123130803Smarcel return retval; 124130803Smarcel} 125130803Smarcel 126130803Smarcel/* Prevent recursion of registers_changed_hook(). */ 127130803Smarcelstatic int tui_refreshing_registers = 0; 128130803Smarcel 129130803Smarcelstatic void 130130803Smarceltui_registers_changed_hook (void) 131130803Smarcel{ 132130803Smarcel struct frame_info *fi; 133130803Smarcel 134130803Smarcel fi = deprecated_selected_frame; 135130803Smarcel if (fi && tui_refreshing_registers == 0) 136130803Smarcel { 137130803Smarcel tui_refreshing_registers = 1; 138130803Smarcel#if 0 139130803Smarcel tui_check_data_values (fi); 140130803Smarcel#endif 141130803Smarcel tui_refreshing_registers = 0; 142130803Smarcel } 143130803Smarcel} 144130803Smarcel 145130803Smarcelstatic void 146130803Smarceltui_register_changed_hook (int regno) 147130803Smarcel{ 148130803Smarcel struct frame_info *fi; 149130803Smarcel 150130803Smarcel fi = deprecated_selected_frame; 151130803Smarcel if (fi && tui_refreshing_registers == 0) 152130803Smarcel { 153130803Smarcel tui_refreshing_registers = 1; 154130803Smarcel tui_check_data_values (fi); 155130803Smarcel tui_refreshing_registers = 0; 156130803Smarcel } 157130803Smarcel} 158130803Smarcel 159130803Smarcel/* Breakpoint creation hook. 160130803Smarcel Update the screen to show the new breakpoint. */ 161130803Smarcelstatic void 162130803Smarceltui_event_create_breakpoint (int number) 163130803Smarcel{ 164130803Smarcel tui_update_all_breakpoint_info (); 165130803Smarcel} 166130803Smarcel 167130803Smarcel/* Breakpoint deletion hook. 168130803Smarcel Refresh the screen to update the breakpoint marks. */ 169130803Smarcelstatic void 170130803Smarceltui_event_delete_breakpoint (int number) 171130803Smarcel{ 172130803Smarcel tui_update_all_breakpoint_info (); 173130803Smarcel} 174130803Smarcel 175130803Smarcelstatic void 176130803Smarceltui_event_modify_breakpoint (int number) 177130803Smarcel{ 178130803Smarcel tui_update_all_breakpoint_info (); 179130803Smarcel} 180130803Smarcel 181130803Smarcelstatic void 182130803Smarceltui_event_default (int number) 183130803Smarcel{ 184130803Smarcel ; 185130803Smarcel} 186130803Smarcel 187130803Smarcelstatic struct gdb_events *tui_old_event_hooks; 188130803Smarcel 189130803Smarcelstatic struct gdb_events tui_event_hooks = 190130803Smarcel{ 191130803Smarcel tui_event_create_breakpoint, 192130803Smarcel tui_event_delete_breakpoint, 193130803Smarcel tui_event_modify_breakpoint, 194130803Smarcel tui_event_default, 195130803Smarcel tui_event_default, 196130803Smarcel tui_event_default 197130803Smarcel}; 198130803Smarcel 199130803Smarcel/* Called when going to wait for the target. 200130803Smarcel Leave curses mode and setup program mode. */ 201130803Smarcelstatic ptid_t 202130803Smarceltui_target_wait_hook (ptid_t pid, struct target_waitstatus *status) 203130803Smarcel{ 204130803Smarcel ptid_t res; 205130803Smarcel 206130803Smarcel /* Leave tui mode (optional). */ 207130803Smarcel#if 0 208130803Smarcel if (tui_active) 209130803Smarcel { 210130803Smarcel target_terminal_ours (); 211130803Smarcel endwin (); 212130803Smarcel target_terminal_inferior (); 213130803Smarcel } 214130803Smarcel#endif 215130803Smarcel tui_target_has_run = 1; 216130803Smarcel res = target_wait (pid, status); 217130803Smarcel 218130803Smarcel if (tui_active) 219130803Smarcel { 220130803Smarcel /* TODO: need to refresh (optional). */ 221130803Smarcel } 222130803Smarcel return res; 223130803Smarcel} 224130803Smarcel 225130803Smarcel/* The selected frame has changed. This is happens after a target 226130803Smarcel stop or when the user explicitly changes the frame (up/down/thread/...). */ 227130803Smarcelstatic void 228130803Smarceltui_selected_frame_level_changed_hook (int level) 229130803Smarcel{ 230130803Smarcel struct frame_info *fi; 231130803Smarcel 232130803Smarcel fi = deprecated_selected_frame; 233130803Smarcel /* Ensure that symbols for this frame are read in. Also, determine the 234130803Smarcel source language of this frame, and switch to it if desired. */ 235130803Smarcel if (fi) 236130803Smarcel { 237130803Smarcel struct symtab *s; 238130803Smarcel 239130803Smarcel s = find_pc_symtab (get_frame_pc (fi)); 240130803Smarcel /* elz: this if here fixes the problem with the pc not being displayed 241130803Smarcel in the tui asm layout, with no debug symbols. The value of s 242130803Smarcel would be 0 here, and select_source_symtab would abort the 243130803Smarcel command by calling the 'error' function */ 244130803Smarcel if (s) 245130803Smarcel select_source_symtab (s); 246130803Smarcel 247130803Smarcel /* Display the frame position (even if there is no symbols). */ 248130803Smarcel tui_show_frame_info (fi); 249130803Smarcel 250130803Smarcel /* Refresh the register window if it's visible. */ 251130803Smarcel if (tui_is_window_visible (DATA_WIN)) 252130803Smarcel { 253130803Smarcel tui_refreshing_registers = 1; 254130803Smarcel tui_check_data_values (fi); 255130803Smarcel tui_refreshing_registers = 0; 256130803Smarcel } 257130803Smarcel } 258130803Smarcel} 259130803Smarcel 260130803Smarcel/* Called from print_frame_info to list the line we stopped in. */ 261130803Smarcelstatic void 262130803Smarceltui_print_frame_info_listing_hook (struct symtab *s, int line, 263130803Smarcel int stopline, int noerror) 264130803Smarcel{ 265130803Smarcel select_source_symtab (s); 266130803Smarcel tui_show_frame_info (deprecated_selected_frame); 267130803Smarcel} 268130803Smarcel 269130803Smarcel/* Called when the target process died or is detached. 270130803Smarcel Update the status line. */ 271130803Smarcelstatic void 272130803Smarceltui_detach_hook (void) 273130803Smarcel{ 274130803Smarcel tui_show_frame_info (0); 275130803Smarcel tui_display_main (); 276130803Smarcel} 277130803Smarcel 278130803Smarcel/* Install the TUI specific hooks. */ 279130803Smarcelvoid 280130803Smarceltui_install_hooks (void) 281130803Smarcel{ 282130803Smarcel target_wait_hook = tui_target_wait_hook; 283130803Smarcel selected_frame_level_changed_hook = tui_selected_frame_level_changed_hook; 284130803Smarcel print_frame_info_listing_hook = tui_print_frame_info_listing_hook; 285130803Smarcel 286130803Smarcel query_hook = tui_query_hook; 287130803Smarcel 288130803Smarcel /* Install the event hooks. */ 289130803Smarcel tui_old_event_hooks = set_gdb_event_hooks (&tui_event_hooks); 290130803Smarcel 291130803Smarcel registers_changed_hook = tui_registers_changed_hook; 292130803Smarcel register_changed_hook = tui_register_changed_hook; 293130803Smarcel detach_hook = tui_detach_hook; 294130803Smarcel} 295130803Smarcel 296130803Smarcel/* Remove the TUI specific hooks. */ 297130803Smarcelvoid 298130803Smarceltui_remove_hooks (void) 299130803Smarcel{ 300130803Smarcel target_wait_hook = 0; 301130803Smarcel selected_frame_level_changed_hook = 0; 302130803Smarcel print_frame_info_listing_hook = 0; 303130803Smarcel query_hook = 0; 304130803Smarcel registers_changed_hook = 0; 305130803Smarcel register_changed_hook = 0; 306130803Smarcel detach_hook = 0; 307130803Smarcel 308130803Smarcel /* Restore the previous event hooks. */ 309130803Smarcel set_gdb_event_hooks (tui_old_event_hooks); 310130803Smarcel} 311130803Smarcel 312130803Smarcelvoid _initialize_tui_hooks (void); 313130803Smarcel 314130803Smarcelvoid 315130803Smarcel_initialize_tui_hooks (void) 316130803Smarcel{ 317130803Smarcel /* Install the permanent hooks. */ 318130803Smarcel tui_target_new_objfile_chain = target_new_objfile_hook; 319130803Smarcel target_new_objfile_hook = tui_new_objfile_hook; 320130803Smarcel} 321