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,
  20    Boston, MA 02111-1307, USA.  */
  21
  22 #include <setjmp.h>
  23
  24 /* From top.c.  */
  25 extern char *line;
  26 extern int linesize;
  27 extern FILE *instream;
  28 extern char gdb_dirbuf[1024];
  29 extern int inhibit_gdbinit;
  30 extern int epoch_interface;
  31 extern char gdbinit[];
  32
  33 /* Generally one should use catch_errors rather than manipulating these
  34    directly.  The exception is main().  */
  35 #if defined(HAVE_SIGSETJMP)
  36 #define SIGJMP_BUF              sigjmp_buf
  37 #define SIGSETJMP(buf)          sigsetjmp(buf, 1)
  38 #define SIGLONGJMP(buf,val)     siglongjmp(buf,val)
  39 #else
  40 #define SIGJMP_BUF              jmp_buf
  41 #define SIGSETJMP(buf)          setjmp(buf)
  42 #define SIGLONGJMP(buf,val)     longjmp(buf,val)
  43 #endif
  44
  45 /* Temporary variable for SET_TOP_LEVEL.  */
  46
  47 int top_level_val;
  48
  49 /* Do a setjmp on error_return and quit_return.  catch_errors is
  50    generally a cleaner way to do this, but main() would look pretty
  51    ugly if it had to use catch_errors each time.  */
  52
  53 #define SET_TOP_LEVEL() \
  54   (((top_level_val = SIGSETJMP (error_return)) \
  55     ? (PTR) 0 : (PTR) memcpy (quit_return, error_return, sizeof (SIGJMP_BUF))) \
  56    , top_level_val)
  57
  58 extern SIGJMP_BUF error_return;
  59 extern SIGJMP_BUF quit_return;
  60
  61 extern void print_gdb_version PARAMS ((GDB_FILE *));
  62
  63 extern void source_command PARAMS ((char *, int));
  64 extern void cd_command PARAMS ((char *, int));
  65 extern void read_command_file PARAMS ((FILE *));
  66 extern void init_history PARAMS ((void));
  67 extern void command_loop PARAMS ((void));
  68 extern int quit_confirm PARAMS ((void));
  69 extern void quit_force PARAMS ((char *, int));
  70 extern void quit_command PARAMS ((char *, int));
  71 extern void command_loop_marker PARAMS ((int));
  72 extern int quit_cover PARAMS ((PTR));
  73 extern void execute_command PARAMS ((char *, int));
  74
  75 /* This function returns a pointer to the string that is used
  76    by gdb for its command prompt. */
  77 extern char *get_prompt PARAMS ((void));
  78
  79 /* This function copies the specified string into the string that
  80    is used by gdb for its command prompt. */
  81 extern void set_prompt PARAMS ((char *));
  82
  83 /* From random places.  */
  84 extern int mapped_symbol_files;
  85 extern int readnow_symbol_files;
  86
  87 /* Perform _initialize initialization */
  88 extern void gdb_init PARAMS ((char *));
  89
  90 /* For use by event-top.c */
  91 /* Variables from top.c. */
  92 extern int source_line_number;
  93 extern char *source_file_name;
  94 extern char *source_error;
  95 extern char *source_pre_error;
  96 extern int history_expansion_p;
  97 extern int server_command;