gdb/top.h

   1 /* Top level stuff for GDB, the GNU debugger.
   2    Copyright 1986, 1987, 1988, 1989, 1990, 1991, 1992, 1993, 1994
   3    Free Software Foundation, Inc.
   4
   5 This file is part of GDB.
   6
   7 This program is free software; you can redistribute it and/or modify
   8 it under the terms of the GNU General Public License as published by
   9 the Free Software Foundation; either version 2 of the License, or
  10 (at your option) any later version.
  11
  12 This program is distributed in the hope that it will be useful,
  13 but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15 GNU General Public License for more details.
  16
  17 You should have received a copy of the GNU General Public License
  18 along with this program; if not, write to the Free Software
  19 Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  20
  21 #include <setjmp.h>
  22
  23 /* From top.c.  */
  24 extern char *line;
  25 extern int linesize;
  26 extern FILE *instream;
  27 extern char gdb_dirbuf[1024];
  28 extern int inhibit_gdbinit;
  29 extern int epoch_interface;
  30 extern char gdbinit[];
  31
  32 /* Generally one should use catch_errors rather than manipulating these
  33    directly.  The exception is main().  */
  34 #if defined(HAVE_SIGSETJMP)
  35 #define SIGJMP_BUF              sigjmp_buf
  36 #define SIGSETJMP(buf)          sigsetjmp(buf, 1)
  37 #define SIGLONGJMP(buf,val)     siglongjmp(buf,val)
  38 #else
  39 #define SIGJMP_BUF              jmp_buf
  40 #define SIGSETJMP(buf)          setjmp(buf)
  41 #define SIGLONGJMP(buf,val)     longjmp(buf,val)
  42 #endif
  43
  44 /* Temporary variable for SET_TOP_LEVEL.  */
  45
  46 int top_level_val;
  47
  48 /* Do a setjmp on error_return and quit_return.  catch_errors is
  49    generally a cleaner way to do this, but main() would look pretty
  50    ugly if it had to use catch_errors each time.  */
  51
  52 #define SET_TOP_LEVEL() \
  53   (((top_level_val = SIGSETJMP (error_return)) \
  54     ? (PTR) 0 : (PTR) memcpy (quit_return, error_return, sizeof (SIGJMP_BUF))) \
  55    , top_level_val)
  56
  57 extern SIGJMP_BUF error_return;
  58 extern SIGJMP_BUF quit_return;
  59
  60 extern void print_gdb_version PARAMS ((GDB_FILE *));
  61
  62 extern void source_command PARAMS ((char *, int));
  63 extern void cd_command PARAMS ((char *, int));
  64 extern void read_command_file PARAMS ((FILE *));
  65 extern void init_history PARAMS ((void));
  66 extern void command_loop PARAMS ((void));
  67 extern int quit_confirm PARAMS ((void));
  68 extern void quit_force PARAMS ((char *, int));
  69 extern void quit_command PARAMS ((char *, int));
  70
  71 extern void setup_event_loop PARAMS ((void));
  72 extern void async_init_signals PARAMS ((void));
  73
  74 /* This function returns a pointer to the string that is used
  75    by gdb for its command prompt. */
  76 extern char *get_prompt PARAMS((void));
  77
  78 /* This function copies the specified string into the string that
  79    is used by gdb for its command prompt. */
  80 extern void set_prompt PARAMS ((char *));
  81
  82 /* From random places.  */
  83 extern int mapped_symbol_files;
  84 extern int readnow_symbol_files;
  85 #define ALL_CLEANUPS    ((struct cleanup *)0)