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[/] [openrisc/] [trunk/] [gnu-old/] [gdb-7.1/] [gdb/] [utils.c] - Diff between revs 834 and 842

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/* General utility routines for GDB, the GNU debugger.
/* General utility routines for GDB, the GNU debugger.
 
 
   Copyright (C) 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996,
   Copyright (C) 1986, 1988, 1989, 1990, 1991, 1992, 1993, 1994, 1995, 1996,
   1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
   1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008,
   2009, 2010 Free Software Foundation, Inc.
   2009, 2010 Free Software Foundation, Inc.
 
 
   This file is part of GDB.
   This file is part of GDB.
 
 
   This program is free software; you can redistribute it and/or modify
   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.
   (at your option) any later version.
 
 
   This program is distributed in the hope that it will be useful,
   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.
   GNU General Public License for more details.
 
 
   You should have received a copy of the GNU General Public License
   You should have received a copy of the GNU General Public License
   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
 
 
#include "defs.h"
#include "defs.h"
#include "gdb_assert.h"
#include "gdb_assert.h"
#include <ctype.h>
#include <ctype.h>
#include "gdb_string.h"
#include "gdb_string.h"
#include "event-top.h"
#include "event-top.h"
#include "exceptions.h"
#include "exceptions.h"
#include "gdbthread.h"
#include "gdbthread.h"
#ifdef HAVE_SYS_RESOURCE_H
#ifdef HAVE_SYS_RESOURCE_H
#include <sys/resource.h>
#include <sys/resource.h>
#endif /* HAVE_SYS_RESOURCE_H */
#endif /* HAVE_SYS_RESOURCE_H */
 
 
#ifdef TUI
#ifdef TUI
#include "tui/tui.h"            /* For tui_get_command_dimension.   */
#include "tui/tui.h"            /* For tui_get_command_dimension.   */
#endif
#endif
 
 
#ifdef __GO32__
#ifdef __GO32__
#include <pc.h>
#include <pc.h>
#endif
#endif
 
 
/* SunOS's curses.h has a '#define reg register' in it.  Thank you Sun. */
/* SunOS's curses.h has a '#define reg register' in it.  Thank you Sun. */
#ifdef reg
#ifdef reg
#undef reg
#undef reg
#endif
#endif
 
 
#include <signal.h>
#include <signal.h>
#include "gdbcmd.h"
#include "gdbcmd.h"
#include "serial.h"
#include "serial.h"
#include "bfd.h"
#include "bfd.h"
#include "target.h"
#include "target.h"
#include "demangle.h"
#include "demangle.h"
#include "expression.h"
#include "expression.h"
#include "language.h"
#include "language.h"
#include "charset.h"
#include "charset.h"
#include "annotate.h"
#include "annotate.h"
#include "filenames.h"
#include "filenames.h"
#include "symfile.h"
#include "symfile.h"
#include "gdb_obstack.h"
#include "gdb_obstack.h"
#include "gdbcore.h"
#include "gdbcore.h"
#include "top.h"
#include "top.h"
 
 
#include "inferior.h"           /* for signed_pointer_to_address */
#include "inferior.h"           /* for signed_pointer_to_address */
 
 
#include <sys/param.h>          /* For MAXPATHLEN */
#include <sys/param.h>          /* For MAXPATHLEN */
 
 
#include "gdb_curses.h"
#include "gdb_curses.h"
 
 
#include "readline/readline.h"
#include "readline/readline.h"
 
 
#include <sys/time.h>
#include <sys/time.h>
#include <time.h>
#include <time.h>
 
 
#include "gdb_usleep.h"
#include "gdb_usleep.h"
 
 
#if !HAVE_DECL_MALLOC
#if !HAVE_DECL_MALLOC
extern PTR malloc ();           /* ARI: PTR */
extern PTR malloc ();           /* ARI: PTR */
#endif
#endif
#if !HAVE_DECL_REALLOC
#if !HAVE_DECL_REALLOC
extern PTR realloc ();          /* ARI: PTR */
extern PTR realloc ();          /* ARI: PTR */
#endif
#endif
#if !HAVE_DECL_FREE
#if !HAVE_DECL_FREE
extern void free ();
extern void free ();
#endif
#endif
 
 
/* readline defines this.  */
/* readline defines this.  */
#undef savestring
#undef savestring
 
 
void (*deprecated_error_begin_hook) (void);
void (*deprecated_error_begin_hook) (void);
 
 
/* Prototypes for local functions */
/* Prototypes for local functions */
 
 
static void vfprintf_maybe_filtered (struct ui_file *, const char *,
static void vfprintf_maybe_filtered (struct ui_file *, const char *,
                                     va_list, int) ATTR_FORMAT (printf, 2, 0);
                                     va_list, int) ATTR_FORMAT (printf, 2, 0);
 
 
static void fputs_maybe_filtered (const char *, struct ui_file *, int);
static void fputs_maybe_filtered (const char *, struct ui_file *, int);
 
 
static void do_my_cleanups (struct cleanup **, struct cleanup *);
static void do_my_cleanups (struct cleanup **, struct cleanup *);
 
 
static void prompt_for_continue (void);
static void prompt_for_continue (void);
 
 
static void set_screen_size (void);
static void set_screen_size (void);
static void set_width (void);
static void set_width (void);
 
 
/* A flag indicating whether to timestamp debugging messages.  */
/* A flag indicating whether to timestamp debugging messages.  */
 
 
static int debug_timestamp = 0;
static int debug_timestamp = 0;
 
 
/* Chain of cleanup actions established with make_cleanup,
/* Chain of cleanup actions established with make_cleanup,
   to be executed if an error happens.  */
   to be executed if an error happens.  */
 
 
static struct cleanup *cleanup_chain;   /* cleaned up after a failed command */
static struct cleanup *cleanup_chain;   /* cleaned up after a failed command */
static struct cleanup *final_cleanup_chain;     /* cleaned up when gdb exits */
static struct cleanup *final_cleanup_chain;     /* cleaned up when gdb exits */
 
 
/* Nonzero if we have job control. */
/* Nonzero if we have job control. */
 
 
int job_control;
int job_control;
 
 
/* Nonzero means a quit has been requested.  */
/* Nonzero means a quit has been requested.  */
 
 
int quit_flag;
int quit_flag;
 
 
/* Nonzero means quit immediately if Control-C is typed now, rather
/* Nonzero means quit immediately if Control-C is typed now, rather
   than waiting until QUIT is executed.  Be careful in setting this;
   than waiting until QUIT is executed.  Be careful in setting this;
   code which executes with immediate_quit set has to be very careful
   code which executes with immediate_quit set has to be very careful
   about being able to deal with being interrupted at any time.  It is
   about being able to deal with being interrupted at any time.  It is
   almost always better to use QUIT; the only exception I can think of
   almost always better to use QUIT; the only exception I can think of
   is being able to quit out of a system call (using EINTR loses if
   is being able to quit out of a system call (using EINTR loses if
   the SIGINT happens between the previous QUIT and the system call).
   the SIGINT happens between the previous QUIT and the system call).
   To immediately quit in the case in which a SIGINT happens between
   To immediately quit in the case in which a SIGINT happens between
   the previous QUIT and setting immediate_quit (desirable anytime we
   the previous QUIT and setting immediate_quit (desirable anytime we
   expect to block), call QUIT after setting immediate_quit.  */
   expect to block), call QUIT after setting immediate_quit.  */
 
 
int immediate_quit;
int immediate_quit;
 
 
/* Nonzero means that encoded C++/ObjC names should be printed out in their
/* Nonzero means that encoded C++/ObjC names should be printed out in their
   C++/ObjC form rather than raw.  */
   C++/ObjC form rather than raw.  */
 
 
int demangle = 1;
int demangle = 1;
static void
static void
show_demangle (struct ui_file *file, int from_tty,
show_demangle (struct ui_file *file, int from_tty,
               struct cmd_list_element *c, const char *value)
               struct cmd_list_element *c, const char *value)
{
{
  fprintf_filtered (file, _("\
  fprintf_filtered (file, _("\
Demangling of encoded C++/ObjC names when displaying symbols is %s.\n"),
Demangling of encoded C++/ObjC names when displaying symbols is %s.\n"),
                    value);
                    value);
}
}
 
 
/* Nonzero means that encoded C++/ObjC names should be printed out in their
/* Nonzero means that encoded C++/ObjC names should be printed out in their
   C++/ObjC form even in assembler language displays.  If this is set, but
   C++/ObjC form even in assembler language displays.  If this is set, but
   DEMANGLE is zero, names are printed raw, i.e. DEMANGLE controls.  */
   DEMANGLE is zero, names are printed raw, i.e. DEMANGLE controls.  */
 
 
int asm_demangle = 0;
int asm_demangle = 0;
static void
static void
show_asm_demangle (struct ui_file *file, int from_tty,
show_asm_demangle (struct ui_file *file, int from_tty,
                   struct cmd_list_element *c, const char *value)
                   struct cmd_list_element *c, const char *value)
{
{
  fprintf_filtered (file, _("\
  fprintf_filtered (file, _("\
Demangling of C++/ObjC names in disassembly listings is %s.\n"),
Demangling of C++/ObjC names in disassembly listings is %s.\n"),
                    value);
                    value);
}
}
 
 
/* Nonzero means that strings with character values >0x7F should be printed
/* Nonzero means that strings with character values >0x7F should be printed
   as octal escapes.  Zero means just print the value (e.g. it's an
   as octal escapes.  Zero means just print the value (e.g. it's an
   international character, and the terminal or window can cope.)  */
   international character, and the terminal or window can cope.)  */
 
 
int sevenbit_strings = 0;
int sevenbit_strings = 0;
static void
static void
show_sevenbit_strings (struct ui_file *file, int from_tty,
show_sevenbit_strings (struct ui_file *file, int from_tty,
                       struct cmd_list_element *c, const char *value)
                       struct cmd_list_element *c, const char *value)
{
{
  fprintf_filtered (file, _("\
  fprintf_filtered (file, _("\
Printing of 8-bit characters in strings as \\nnn is %s.\n"),
Printing of 8-bit characters in strings as \\nnn is %s.\n"),
                    value);
                    value);
}
}
 
 
/* String to be printed before error messages, if any.  */
/* String to be printed before error messages, if any.  */
 
 
char *error_pre_print;
char *error_pre_print;
 
 
/* String to be printed before quit messages, if any.  */
/* String to be printed before quit messages, if any.  */
 
 
char *quit_pre_print;
char *quit_pre_print;
 
 
/* String to be printed before warning messages, if any.  */
/* String to be printed before warning messages, if any.  */
 
 
char *warning_pre_print = "\nwarning: ";
char *warning_pre_print = "\nwarning: ";
 
 
int pagination_enabled = 1;
int pagination_enabled = 1;
static void
static void
show_pagination_enabled (struct ui_file *file, int from_tty,
show_pagination_enabled (struct ui_file *file, int from_tty,
                         struct cmd_list_element *c, const char *value)
                         struct cmd_list_element *c, const char *value)
{
{
  fprintf_filtered (file, _("State of pagination is %s.\n"), value);
  fprintf_filtered (file, _("State of pagination is %s.\n"), value);
}
}
 
 


 
 
/* Add a new cleanup to the cleanup_chain,
/* Add a new cleanup to the cleanup_chain,
   and return the previous chain pointer
   and return the previous chain pointer
   to be passed later to do_cleanups or discard_cleanups.
   to be passed later to do_cleanups or discard_cleanups.
   Args are FUNCTION to clean up with, and ARG to pass to it.  */
   Args are FUNCTION to clean up with, and ARG to pass to it.  */
 
 
struct cleanup *
struct cleanup *
make_cleanup (make_cleanup_ftype *function, void *arg)
make_cleanup (make_cleanup_ftype *function, void *arg)
{
{
  return make_my_cleanup (&cleanup_chain, function, arg);
  return make_my_cleanup (&cleanup_chain, function, arg);
}
}
 
 
struct cleanup *
struct cleanup *
make_cleanup_dtor (make_cleanup_ftype *function, void *arg,
make_cleanup_dtor (make_cleanup_ftype *function, void *arg,
                   void (*dtor) (void *))
                   void (*dtor) (void *))
{
{
  return make_my_cleanup2 (&cleanup_chain,
  return make_my_cleanup2 (&cleanup_chain,
                           function, arg, dtor);
                           function, arg, dtor);
}
}
 
 
struct cleanup *
struct cleanup *
make_final_cleanup (make_cleanup_ftype *function, void *arg)
make_final_cleanup (make_cleanup_ftype *function, void *arg)
{
{
  return make_my_cleanup (&final_cleanup_chain, function, arg);
  return make_my_cleanup (&final_cleanup_chain, function, arg);
}
}
 
 
static void
static void
do_freeargv (void *arg)
do_freeargv (void *arg)
{
{
  freeargv ((char **) arg);
  freeargv ((char **) arg);
}
}
 
 
struct cleanup *
struct cleanup *
make_cleanup_freeargv (char **arg)
make_cleanup_freeargv (char **arg)
{
{
  return make_my_cleanup (&cleanup_chain, do_freeargv, arg);
  return make_my_cleanup (&cleanup_chain, do_freeargv, arg);
}
}
 
 
static void
static void
do_bfd_close_cleanup (void *arg)
do_bfd_close_cleanup (void *arg)
{
{
  bfd_close (arg);
  bfd_close (arg);
}
}
 
 
struct cleanup *
struct cleanup *
make_cleanup_bfd_close (bfd *abfd)
make_cleanup_bfd_close (bfd *abfd)
{
{
  return make_cleanup (do_bfd_close_cleanup, abfd);
  return make_cleanup (do_bfd_close_cleanup, abfd);
}
}
 
 
static void
static void
do_close_cleanup (void *arg)
do_close_cleanup (void *arg)
{
{
  int *fd = arg;
  int *fd = arg;
  close (*fd);
  close (*fd);
}
}
 
 
struct cleanup *
struct cleanup *
make_cleanup_close (int fd)
make_cleanup_close (int fd)
{
{
  int *saved_fd = xmalloc (sizeof (fd));
  int *saved_fd = xmalloc (sizeof (fd));
  *saved_fd = fd;
  *saved_fd = fd;
  return make_cleanup_dtor (do_close_cleanup, saved_fd, xfree);
  return make_cleanup_dtor (do_close_cleanup, saved_fd, xfree);
}
}
 
 
/* Helper function which does the work for make_cleanup_fclose.  */
/* Helper function which does the work for make_cleanup_fclose.  */
 
 
static void
static void
do_fclose_cleanup (void *arg)
do_fclose_cleanup (void *arg)
{
{
  FILE *file = arg;
  FILE *file = arg;
  fclose (arg);
  fclose (arg);
}
}
 
 
/* Return a new cleanup that closes FILE.  */
/* Return a new cleanup that closes FILE.  */
 
 
struct cleanup *
struct cleanup *
make_cleanup_fclose (FILE *file)
make_cleanup_fclose (FILE *file)
{
{
  return make_cleanup (do_fclose_cleanup, file);
  return make_cleanup (do_fclose_cleanup, file);
}
}
 
 
/* Helper function which does the work for make_cleanup_obstack_free.  */
/* Helper function which does the work for make_cleanup_obstack_free.  */
 
 
static void
static void
do_obstack_free (void *arg)
do_obstack_free (void *arg)
{
{
  struct obstack *ob = arg;
  struct obstack *ob = arg;
  obstack_free (ob, NULL);
  obstack_free (ob, NULL);
}
}
 
 
/* Return a new cleanup that frees OBSTACK.  */
/* Return a new cleanup that frees OBSTACK.  */
 
 
struct cleanup *
struct cleanup *
make_cleanup_obstack_free (struct obstack *obstack)
make_cleanup_obstack_free (struct obstack *obstack)
{
{
  return make_cleanup (do_obstack_free, obstack);
  return make_cleanup (do_obstack_free, obstack);
}
}
 
 
static void
static void
do_ui_file_delete (void *arg)
do_ui_file_delete (void *arg)
{
{
  ui_file_delete (arg);
  ui_file_delete (arg);
}
}
 
 
struct cleanup *
struct cleanup *
make_cleanup_ui_file_delete (struct ui_file *arg)
make_cleanup_ui_file_delete (struct ui_file *arg)
{
{
  return make_my_cleanup (&cleanup_chain, do_ui_file_delete, arg);
  return make_my_cleanup (&cleanup_chain, do_ui_file_delete, arg);
}
}
 
 
static void
static void
do_free_section_addr_info (void *arg)
do_free_section_addr_info (void *arg)
{
{
  free_section_addr_info (arg);
  free_section_addr_info (arg);
}
}
 
 
struct cleanup *
struct cleanup *
make_cleanup_free_section_addr_info (struct section_addr_info *addrs)
make_cleanup_free_section_addr_info (struct section_addr_info *addrs)
{
{
  return make_my_cleanup (&cleanup_chain, do_free_section_addr_info, addrs);
  return make_my_cleanup (&cleanup_chain, do_free_section_addr_info, addrs);
}
}
 
 
struct restore_integer_closure
struct restore_integer_closure
{
{
  int *variable;
  int *variable;
  int value;
  int value;
};
};
 
 
static void
static void
restore_integer (void *p)
restore_integer (void *p)
{
{
  struct restore_integer_closure *closure = p;
  struct restore_integer_closure *closure = p;
  *(closure->variable) = closure->value;
  *(closure->variable) = closure->value;
}
}
 
 
/* Remember the current value of *VARIABLE and make it restored when the cleanup
/* Remember the current value of *VARIABLE and make it restored when the cleanup
   is run.  */
   is run.  */
struct cleanup *
struct cleanup *
make_cleanup_restore_integer (int *variable)
make_cleanup_restore_integer (int *variable)
{
{
  struct restore_integer_closure *c =
  struct restore_integer_closure *c =
    xmalloc (sizeof (struct restore_integer_closure));
    xmalloc (sizeof (struct restore_integer_closure));
  c->variable = variable;
  c->variable = variable;
  c->value = *variable;
  c->value = *variable;
 
 
  return make_my_cleanup2 (&cleanup_chain, restore_integer, (void *)c,
  return make_my_cleanup2 (&cleanup_chain, restore_integer, (void *)c,
                           xfree);
                           xfree);
}
}
 
 
struct cleanup *
struct cleanup *
make_my_cleanup2 (struct cleanup **pmy_chain, make_cleanup_ftype *function,
make_my_cleanup2 (struct cleanup **pmy_chain, make_cleanup_ftype *function,
                  void *arg,  void (*free_arg) (void *))
                  void *arg,  void (*free_arg) (void *))
{
{
  struct cleanup *new
  struct cleanup *new
    = (struct cleanup *) xmalloc (sizeof (struct cleanup));
    = (struct cleanup *) xmalloc (sizeof (struct cleanup));
  struct cleanup *old_chain = *pmy_chain;
  struct cleanup *old_chain = *pmy_chain;
 
 
  new->next = *pmy_chain;
  new->next = *pmy_chain;
  new->function = function;
  new->function = function;
  new->free_arg = free_arg;
  new->free_arg = free_arg;
  new->arg = arg;
  new->arg = arg;
  *pmy_chain = new;
  *pmy_chain = new;
 
 
  return old_chain;
  return old_chain;
}
}
 
 
struct cleanup *
struct cleanup *
make_my_cleanup (struct cleanup **pmy_chain, make_cleanup_ftype *function,
make_my_cleanup (struct cleanup **pmy_chain, make_cleanup_ftype *function,
                 void *arg)
                 void *arg)
{
{
  return make_my_cleanup2 (pmy_chain, function, arg, NULL);
  return make_my_cleanup2 (pmy_chain, function, arg, NULL);
}
}
 
 
/* Discard cleanups and do the actions they describe
/* Discard cleanups and do the actions they describe
   until we get back to the point OLD_CHAIN in the cleanup_chain.  */
   until we get back to the point OLD_CHAIN in the cleanup_chain.  */
 
 
void
void
do_cleanups (struct cleanup *old_chain)
do_cleanups (struct cleanup *old_chain)
{
{
  do_my_cleanups (&cleanup_chain, old_chain);
  do_my_cleanups (&cleanup_chain, old_chain);
}
}
 
 
void
void
do_final_cleanups (struct cleanup *old_chain)
do_final_cleanups (struct cleanup *old_chain)
{
{
  do_my_cleanups (&final_cleanup_chain, old_chain);
  do_my_cleanups (&final_cleanup_chain, old_chain);
}
}
 
 
static void
static void
do_my_cleanups (struct cleanup **pmy_chain,
do_my_cleanups (struct cleanup **pmy_chain,
                struct cleanup *old_chain)
                struct cleanup *old_chain)
{
{
  struct cleanup *ptr;
  struct cleanup *ptr;
  while ((ptr = *pmy_chain) != old_chain)
  while ((ptr = *pmy_chain) != old_chain)
    {
    {
      *pmy_chain = ptr->next;   /* Do this first incase recursion */
      *pmy_chain = ptr->next;   /* Do this first incase recursion */
      (*ptr->function) (ptr->arg);
      (*ptr->function) (ptr->arg);
      if (ptr->free_arg)
      if (ptr->free_arg)
        (*ptr->free_arg) (ptr->arg);
        (*ptr->free_arg) (ptr->arg);
      xfree (ptr);
      xfree (ptr);
    }
    }
}
}
 
 
/* Discard cleanups, not doing the actions they describe,
/* Discard cleanups, not doing the actions they describe,
   until we get back to the point OLD_CHAIN in the cleanup_chain.  */
   until we get back to the point OLD_CHAIN in the cleanup_chain.  */
 
 
void
void
discard_cleanups (struct cleanup *old_chain)
discard_cleanups (struct cleanup *old_chain)
{
{
  discard_my_cleanups (&cleanup_chain, old_chain);
  discard_my_cleanups (&cleanup_chain, old_chain);
}
}
 
 
void
void
discard_final_cleanups (struct cleanup *old_chain)
discard_final_cleanups (struct cleanup *old_chain)
{
{
  discard_my_cleanups (&final_cleanup_chain, old_chain);
  discard_my_cleanups (&final_cleanup_chain, old_chain);
}
}
 
 
void
void
discard_my_cleanups (struct cleanup **pmy_chain,
discard_my_cleanups (struct cleanup **pmy_chain,
                     struct cleanup *old_chain)
                     struct cleanup *old_chain)
{
{
  struct cleanup *ptr;
  struct cleanup *ptr;
  while ((ptr = *pmy_chain) != old_chain)
  while ((ptr = *pmy_chain) != old_chain)
    {
    {
      *pmy_chain = ptr->next;
      *pmy_chain = ptr->next;
      if (ptr->free_arg)
      if (ptr->free_arg)
        (*ptr->free_arg) (ptr->arg);
        (*ptr->free_arg) (ptr->arg);
      xfree (ptr);
      xfree (ptr);
    }
    }
}
}
 
 
/* Set the cleanup_chain to 0, and return the old cleanup chain.  */
/* Set the cleanup_chain to 0, and return the old cleanup chain.  */
struct cleanup *
struct cleanup *
save_cleanups (void)
save_cleanups (void)
{
{
  return save_my_cleanups (&cleanup_chain);
  return save_my_cleanups (&cleanup_chain);
}
}
 
 
struct cleanup *
struct cleanup *
save_final_cleanups (void)
save_final_cleanups (void)
{
{
  return save_my_cleanups (&final_cleanup_chain);
  return save_my_cleanups (&final_cleanup_chain);
}
}
 
 
struct cleanup *
struct cleanup *
save_my_cleanups (struct cleanup **pmy_chain)
save_my_cleanups (struct cleanup **pmy_chain)
{
{
  struct cleanup *old_chain = *pmy_chain;
  struct cleanup *old_chain = *pmy_chain;
 
 
  *pmy_chain = 0;
  *pmy_chain = 0;
  return old_chain;
  return old_chain;
}
}
 
 
/* Restore the cleanup chain from a previously saved chain.  */
/* Restore the cleanup chain from a previously saved chain.  */
void
void
restore_cleanups (struct cleanup *chain)
restore_cleanups (struct cleanup *chain)
{
{
  restore_my_cleanups (&cleanup_chain, chain);
  restore_my_cleanups (&cleanup_chain, chain);
}
}
 
 
void
void
restore_final_cleanups (struct cleanup *chain)
restore_final_cleanups (struct cleanup *chain)
{
{
  restore_my_cleanups (&final_cleanup_chain, chain);
  restore_my_cleanups (&final_cleanup_chain, chain);
}
}
 
 
void
void
restore_my_cleanups (struct cleanup **pmy_chain, struct cleanup *chain)
restore_my_cleanups (struct cleanup **pmy_chain, struct cleanup *chain)
{
{
  *pmy_chain = chain;
  *pmy_chain = chain;
}
}
 
 
/* This function is useful for cleanups.
/* This function is useful for cleanups.
   Do
   Do
 
 
   foo = xmalloc (...);
   foo = xmalloc (...);
   old_chain = make_cleanup (free_current_contents, &foo);
   old_chain = make_cleanup (free_current_contents, &foo);
 
 
   to arrange to free the object thus allocated.  */
   to arrange to free the object thus allocated.  */
 
 
void
void
free_current_contents (void *ptr)
free_current_contents (void *ptr)
{
{
  void **location = ptr;
  void **location = ptr;
  if (location == NULL)
  if (location == NULL)
    internal_error (__FILE__, __LINE__,
    internal_error (__FILE__, __LINE__,
                    _("free_current_contents: NULL pointer"));
                    _("free_current_contents: NULL pointer"));
  if (*location != NULL)
  if (*location != NULL)
    {
    {
      xfree (*location);
      xfree (*location);
      *location = NULL;
      *location = NULL;
    }
    }
}
}
 
 
/* Provide a known function that does nothing, to use as a base for
/* Provide a known function that does nothing, to use as a base for
   for a possibly long chain of cleanups.  This is useful where we
   for a possibly long chain of cleanups.  This is useful where we
   use the cleanup chain for handling normal cleanups as well as dealing
   use the cleanup chain for handling normal cleanups as well as dealing
   with cleanups that need to be done as a result of a call to error().
   with cleanups that need to be done as a result of a call to error().
   In such cases, we may not be certain where the first cleanup is, unless
   In such cases, we may not be certain where the first cleanup is, unless
   we have a do-nothing one to always use as the base. */
   we have a do-nothing one to always use as the base. */
 
 
void
void
null_cleanup (void *arg)
null_cleanup (void *arg)
{
{
}
}
 
 
/* Continuations are implemented as cleanups internally.  Inherit from
/* Continuations are implemented as cleanups internally.  Inherit from
   cleanups.  */
   cleanups.  */
struct continuation
struct continuation
{
{
  struct cleanup base;
  struct cleanup base;
};
};
 
 
/* Add a continuation to the continuation list of THREAD.  The new
/* Add a continuation to the continuation list of THREAD.  The new
   continuation will be added at the front.  */
   continuation will be added at the front.  */
void
void
add_continuation (struct thread_info *thread,
add_continuation (struct thread_info *thread,
                  void (*continuation_hook) (void *), void *args,
                  void (*continuation_hook) (void *), void *args,
                  void (*continuation_free_args) (void *))
                  void (*continuation_free_args) (void *))
{
{
  struct cleanup *as_cleanup = &thread->continuations->base;
  struct cleanup *as_cleanup = &thread->continuations->base;
  make_cleanup_ftype *continuation_hook_fn = continuation_hook;
  make_cleanup_ftype *continuation_hook_fn = continuation_hook;
 
 
  make_my_cleanup2 (&as_cleanup,
  make_my_cleanup2 (&as_cleanup,
                    continuation_hook_fn,
                    continuation_hook_fn,
                    args,
                    args,
                    continuation_free_args);
                    continuation_free_args);
 
 
  thread->continuations = (struct continuation *) as_cleanup;
  thread->continuations = (struct continuation *) as_cleanup;
}
}
 
 
/* Add a continuation to the continuation list of INFERIOR.  The new
/* Add a continuation to the continuation list of INFERIOR.  The new
   continuation will be added at the front.  */
   continuation will be added at the front.  */
 
 
void
void
add_inferior_continuation (void (*continuation_hook) (void *), void *args,
add_inferior_continuation (void (*continuation_hook) (void *), void *args,
                           void (*continuation_free_args) (void *))
                           void (*continuation_free_args) (void *))
{
{
  struct inferior *inf = current_inferior ();
  struct inferior *inf = current_inferior ();
  struct cleanup *as_cleanup = &inf->continuations->base;
  struct cleanup *as_cleanup = &inf->continuations->base;
  make_cleanup_ftype *continuation_hook_fn = continuation_hook;
  make_cleanup_ftype *continuation_hook_fn = continuation_hook;
 
 
  make_my_cleanup2 (&as_cleanup,
  make_my_cleanup2 (&as_cleanup,
                    continuation_hook_fn,
                    continuation_hook_fn,
                    args,
                    args,
                    continuation_free_args);
                    continuation_free_args);
 
 
  inf->continuations = (struct continuation *) as_cleanup;
  inf->continuations = (struct continuation *) as_cleanup;
}
}
 
 
/* Do all continuations of the current inferior.  */
/* Do all continuations of the current inferior.  */
 
 
void
void
do_all_inferior_continuations (void)
do_all_inferior_continuations (void)
{
{
  struct cleanup *old_chain;
  struct cleanup *old_chain;
  struct cleanup *as_cleanup;
  struct cleanup *as_cleanup;
  struct inferior *inf = current_inferior ();
  struct inferior *inf = current_inferior ();
 
 
  if (inf->continuations == NULL)
  if (inf->continuations == NULL)
    return;
    return;
 
 
  /* Copy the list header into another pointer, and set the global
  /* Copy the list header into another pointer, and set the global
     list header to null, so that the global list can change as a side
     list header to null, so that the global list can change as a side
     effect of invoking the continuations and the processing of the
     effect of invoking the continuations and the processing of the
     preexisting continuations will not be affected.  */
     preexisting continuations will not be affected.  */
 
 
  as_cleanup = &inf->continuations->base;
  as_cleanup = &inf->continuations->base;
  inf->continuations = NULL;
  inf->continuations = NULL;
 
 
  /* Work now on the list we have set aside.  */
  /* Work now on the list we have set aside.  */
  do_my_cleanups (&as_cleanup, NULL);
  do_my_cleanups (&as_cleanup, NULL);
}
}
 
 
/* Get rid of all the inferior-wide continuations of INF.  */
/* Get rid of all the inferior-wide continuations of INF.  */
 
 
void
void
discard_all_inferior_continuations (struct inferior *inf)
discard_all_inferior_continuations (struct inferior *inf)
{
{
  struct cleanup *continuation_ptr = &inf->continuations->base;
  struct cleanup *continuation_ptr = &inf->continuations->base;
  discard_my_cleanups (&continuation_ptr, NULL);
  discard_my_cleanups (&continuation_ptr, NULL);
  inf->continuations = NULL;
  inf->continuations = NULL;
}
}
 
 
static void
static void
restore_thread_cleanup (void *arg)
restore_thread_cleanup (void *arg)
{
{
  ptid_t *ptid_p = arg;
  ptid_t *ptid_p = arg;
  switch_to_thread (*ptid_p);
  switch_to_thread (*ptid_p);
}
}
 
 
/* Walk down the continuation list of PTID, and execute all the
/* Walk down the continuation list of PTID, and execute all the
   continuations.  There is a problem though.  In some cases new
   continuations.  There is a problem though.  In some cases new
   continuations may be added while we are in the middle of this loop.
   continuations may be added while we are in the middle of this loop.
   If this happens they will be added in the front, and done before we
   If this happens they will be added in the front, and done before we
   have a chance of exhausting those that were already there.  We need
   have a chance of exhausting those that were already there.  We need
   to then save the beginning of the list in a pointer and do the
   to then save the beginning of the list in a pointer and do the
   continuations from there on, instead of using the global beginning
   continuations from there on, instead of using the global beginning
   of list as our iteration pointer.  */
   of list as our iteration pointer.  */
static void
static void
do_all_continuations_ptid (ptid_t ptid,
do_all_continuations_ptid (ptid_t ptid,
                           struct continuation **continuations_p)
                           struct continuation **continuations_p)
{
{
  struct cleanup *old_chain;
  struct cleanup *old_chain;
  ptid_t current_thread;
  ptid_t current_thread;
  struct cleanup *as_cleanup;
  struct cleanup *as_cleanup;
 
 
  if (*continuations_p == NULL)
  if (*continuations_p == NULL)
    return;
    return;
 
 
  current_thread = inferior_ptid;
  current_thread = inferior_ptid;
 
 
  /* Restore selected thread on exit.  Don't try to restore the frame
  /* Restore selected thread on exit.  Don't try to restore the frame
     as well, because:
     as well, because:
 
 
    - When running continuations, the selected frame is always #0.
    - When running continuations, the selected frame is always #0.
 
 
    - The continuations may trigger symbol file loads, which may
    - The continuations may trigger symbol file loads, which may
      change the frame layout (frame ids change), which would trigger
      change the frame layout (frame ids change), which would trigger
      a warning if we used make_cleanup_restore_current_thread.  */
      a warning if we used make_cleanup_restore_current_thread.  */
 
 
  old_chain = make_cleanup (restore_thread_cleanup, &current_thread);
  old_chain = make_cleanup (restore_thread_cleanup, &current_thread);
 
 
  /* Let the continuation see this thread as selected.  */
  /* Let the continuation see this thread as selected.  */
  switch_to_thread (ptid);
  switch_to_thread (ptid);
 
 
  /* Copy the list header into another pointer, and set the global
  /* Copy the list header into another pointer, and set the global
     list header to null, so that the global list can change as a side
     list header to null, so that the global list can change as a side
     effect of invoking the continuations and the processing of the
     effect of invoking the continuations and the processing of the
     preexisting continuations will not be affected.  */
     preexisting continuations will not be affected.  */
 
 
  as_cleanup = &(*continuations_p)->base;
  as_cleanup = &(*continuations_p)->base;
  *continuations_p = NULL;
  *continuations_p = NULL;
 
 
  /* Work now on the list we have set aside.  */
  /* Work now on the list we have set aside.  */
  do_my_cleanups (&as_cleanup, NULL);
  do_my_cleanups (&as_cleanup, NULL);
 
 
  do_cleanups (old_chain);
  do_cleanups (old_chain);
}
}
 
 
/* Callback for iterate over threads.  */
/* Callback for iterate over threads.  */
static int
static int
do_all_continuations_thread_callback (struct thread_info *thread, void *data)
do_all_continuations_thread_callback (struct thread_info *thread, void *data)
{
{
  do_all_continuations_ptid (thread->ptid, &thread->continuations);
  do_all_continuations_ptid (thread->ptid, &thread->continuations);
  return 0;
  return 0;
}
}
 
 
/* Do all continuations of thread THREAD.  */
/* Do all continuations of thread THREAD.  */
void
void
do_all_continuations_thread (struct thread_info *thread)
do_all_continuations_thread (struct thread_info *thread)
{
{
  do_all_continuations_thread_callback (thread, NULL);
  do_all_continuations_thread_callback (thread, NULL);
}
}
 
 
/* Do all continuations of all threads.  */
/* Do all continuations of all threads.  */
void
void
do_all_continuations (void)
do_all_continuations (void)
{
{
  iterate_over_threads (do_all_continuations_thread_callback, NULL);
  iterate_over_threads (do_all_continuations_thread_callback, NULL);
}
}
 
 
/* Callback for iterate over threads.  */
/* Callback for iterate over threads.  */
static int
static int
discard_all_continuations_thread_callback (struct thread_info *thread,
discard_all_continuations_thread_callback (struct thread_info *thread,
                                           void *data)
                                           void *data)
{
{
  struct cleanup *continuation_ptr = &thread->continuations->base;
  struct cleanup *continuation_ptr = &thread->continuations->base;
  discard_my_cleanups (&continuation_ptr, NULL);
  discard_my_cleanups (&continuation_ptr, NULL);
  thread->continuations = NULL;
  thread->continuations = NULL;
  return 0;
  return 0;
}
}
 
 
/* Get rid of all the continuations of THREAD.  */
/* Get rid of all the continuations of THREAD.  */
void
void
discard_all_continuations_thread (struct thread_info *thread)
discard_all_continuations_thread (struct thread_info *thread)
{
{
  discard_all_continuations_thread_callback (thread, NULL);
  discard_all_continuations_thread_callback (thread, NULL);
}
}
 
 
/* Get rid of all the continuations of all threads.  */
/* Get rid of all the continuations of all threads.  */
void
void
discard_all_continuations (void)
discard_all_continuations (void)
{
{
  iterate_over_threads (discard_all_continuations_thread_callback, NULL);
  iterate_over_threads (discard_all_continuations_thread_callback, NULL);
}
}
 
 
 
 
/* Add a continuation to the intermediate continuation list of THREAD.
/* Add a continuation to the intermediate continuation list of THREAD.
   The new continuation will be added at the front.  */
   The new continuation will be added at the front.  */
void
void
add_intermediate_continuation (struct thread_info *thread,
add_intermediate_continuation (struct thread_info *thread,
                               void (*continuation_hook)
                               void (*continuation_hook)
                               (void *), void *args,
                               (void *), void *args,
                               void (*continuation_free_args) (void *))
                               void (*continuation_free_args) (void *))
{
{
  struct cleanup *as_cleanup = &thread->intermediate_continuations->base;
  struct cleanup *as_cleanup = &thread->intermediate_continuations->base;
  make_cleanup_ftype *continuation_hook_fn = continuation_hook;
  make_cleanup_ftype *continuation_hook_fn = continuation_hook;
 
 
  make_my_cleanup2 (&as_cleanup,
  make_my_cleanup2 (&as_cleanup,
                    continuation_hook_fn,
                    continuation_hook_fn,
                    args,
                    args,
                    continuation_free_args);
                    continuation_free_args);
 
 
  thread->intermediate_continuations = (struct continuation *) as_cleanup;
  thread->intermediate_continuations = (struct continuation *) as_cleanup;
}
}
 
 
/* Walk down the cmd_continuation list, and execute all the
/* Walk down the cmd_continuation list, and execute all the
   continuations. There is a problem though. In some cases new
   continuations. There is a problem though. In some cases new
   continuations may be added while we are in the middle of this
   continuations may be added while we are in the middle of this
   loop. If this happens they will be added in the front, and done
   loop. If this happens they will be added in the front, and done
   before we have a chance of exhausting those that were already
   before we have a chance of exhausting those that were already
   there. We need to then save the beginning of the list in a pointer
   there. We need to then save the beginning of the list in a pointer
   and do the continuations from there on, instead of using the
   and do the continuations from there on, instead of using the
   global beginning of list as our iteration pointer.*/
   global beginning of list as our iteration pointer.*/
static int
static int
do_all_intermediate_continuations_thread_callback (struct thread_info *thread,
do_all_intermediate_continuations_thread_callback (struct thread_info *thread,
                                                   void *data)
                                                   void *data)
{
{
  do_all_continuations_ptid (thread->ptid,
  do_all_continuations_ptid (thread->ptid,
                             &thread->intermediate_continuations);
                             &thread->intermediate_continuations);
  return 0;
  return 0;
}
}
 
 
/* Do all intermediate continuations of thread THREAD.  */
/* Do all intermediate continuations of thread THREAD.  */
void
void
do_all_intermediate_continuations_thread (struct thread_info *thread)
do_all_intermediate_continuations_thread (struct thread_info *thread)
{
{
  do_all_intermediate_continuations_thread_callback (thread, NULL);
  do_all_intermediate_continuations_thread_callback (thread, NULL);
}
}
 
 
/* Do all intermediate continuations of all threads.  */
/* Do all intermediate continuations of all threads.  */
void
void
do_all_intermediate_continuations (void)
do_all_intermediate_continuations (void)
{
{
  iterate_over_threads (do_all_intermediate_continuations_thread_callback, NULL);
  iterate_over_threads (do_all_intermediate_continuations_thread_callback, NULL);
}
}
 
 
/* Callback for iterate over threads.  */
/* Callback for iterate over threads.  */
static int
static int
discard_all_intermediate_continuations_thread_callback (struct thread_info *thread,
discard_all_intermediate_continuations_thread_callback (struct thread_info *thread,
                                                        void *data)
                                                        void *data)
{
{
  struct cleanup *continuation_ptr = &thread->intermediate_continuations->base;
  struct cleanup *continuation_ptr = &thread->intermediate_continuations->base;
  discard_my_cleanups (&continuation_ptr, NULL);
  discard_my_cleanups (&continuation_ptr, NULL);
  thread->intermediate_continuations = NULL;
  thread->intermediate_continuations = NULL;
  return 0;
  return 0;
}
}
 
 
/* Get rid of all the intermediate continuations of THREAD.  */
/* Get rid of all the intermediate continuations of THREAD.  */
void
void
discard_all_intermediate_continuations_thread (struct thread_info *thread)
discard_all_intermediate_continuations_thread (struct thread_info *thread)
{
{
  discard_all_intermediate_continuations_thread_callback (thread, NULL);
  discard_all_intermediate_continuations_thread_callback (thread, NULL);
}
}
 
 
/* Get rid of all the intermediate continuations of all threads.  */
/* Get rid of all the intermediate continuations of all threads.  */
void
void
discard_all_intermediate_continuations (void)
discard_all_intermediate_continuations (void)
{
{
  iterate_over_threads (discard_all_intermediate_continuations_thread_callback, NULL);
  iterate_over_threads (discard_all_intermediate_continuations_thread_callback, NULL);
}
}


 
 
 
 
/* Print a warning message.  The first argument STRING is the warning
/* Print a warning message.  The first argument STRING is the warning
   message, used as an fprintf format string, the second is the
   message, used as an fprintf format string, the second is the
   va_list of arguments for that string.  A warning is unfiltered (not
   va_list of arguments for that string.  A warning is unfiltered (not
   paginated) so that the user does not need to page through each
   paginated) so that the user does not need to page through each
   screen full of warnings when there are lots of them.  */
   screen full of warnings when there are lots of them.  */
 
 
void
void
vwarning (const char *string, va_list args)
vwarning (const char *string, va_list args)
{
{
  if (deprecated_warning_hook)
  if (deprecated_warning_hook)
    (*deprecated_warning_hook) (string, args);
    (*deprecated_warning_hook) (string, args);
  else
  else
    {
    {
      target_terminal_ours ();
      target_terminal_ours ();
      wrap_here ("");           /* Force out any buffered output */
      wrap_here ("");           /* Force out any buffered output */
      gdb_flush (gdb_stdout);
      gdb_flush (gdb_stdout);
      if (warning_pre_print)
      if (warning_pre_print)
        fputs_unfiltered (warning_pre_print, gdb_stderr);
        fputs_unfiltered (warning_pre_print, gdb_stderr);
      vfprintf_unfiltered (gdb_stderr, string, args);
      vfprintf_unfiltered (gdb_stderr, string, args);
      fprintf_unfiltered (gdb_stderr, "\n");
      fprintf_unfiltered (gdb_stderr, "\n");
      va_end (args);
      va_end (args);
    }
    }
}
}
 
 
/* Print a warning message.
/* Print a warning message.
   The first argument STRING is the warning message, used as a fprintf string,
   The first argument STRING is the warning message, used as a fprintf string,
   and the remaining args are passed as arguments to it.
   and the remaining args are passed as arguments to it.
   The primary difference between warnings and errors is that a warning
   The primary difference between warnings and errors is that a warning
   does not force the return to command level.  */
   does not force the return to command level.  */
 
 
void
void
warning (const char *string, ...)
warning (const char *string, ...)
{
{
  va_list args;
  va_list args;
  va_start (args, string);
  va_start (args, string);
  vwarning (string, args);
  vwarning (string, args);
  va_end (args);
  va_end (args);
}
}
 
 
/* Print an error message and return to command level.
/* Print an error message and return to command level.
   The first argument STRING is the error message, used as a fprintf string,
   The first argument STRING is the error message, used as a fprintf string,
   and the remaining args are passed as arguments to it.  */
   and the remaining args are passed as arguments to it.  */
 
 
NORETURN void
NORETURN void
verror (const char *string, va_list args)
verror (const char *string, va_list args)
{
{
  throw_verror (GENERIC_ERROR, string, args);
  throw_verror (GENERIC_ERROR, string, args);
}
}
 
 
NORETURN void
NORETURN void
error (const char *string, ...)
error (const char *string, ...)
{
{
  va_list args;
  va_list args;
  va_start (args, string);
  va_start (args, string);
  throw_verror (GENERIC_ERROR, string, args);
  throw_verror (GENERIC_ERROR, string, args);
  va_end (args);
  va_end (args);
}
}
 
 
/* Print an error message and quit.
/* Print an error message and quit.
   The first argument STRING is the error message, used as a fprintf string,
   The first argument STRING is the error message, used as a fprintf string,
   and the remaining args are passed as arguments to it.  */
   and the remaining args are passed as arguments to it.  */
 
 
NORETURN void
NORETURN void
vfatal (const char *string, va_list args)
vfatal (const char *string, va_list args)
{
{
  throw_vfatal (string, args);
  throw_vfatal (string, args);
}
}
 
 
NORETURN void
NORETURN void
fatal (const char *string, ...)
fatal (const char *string, ...)
{
{
  va_list args;
  va_list args;
  va_start (args, string);
  va_start (args, string);
  throw_vfatal (string, args);
  throw_vfatal (string, args);
  va_end (args);
  va_end (args);
}
}
 
 
NORETURN void
NORETURN void
error_stream (struct ui_file *stream)
error_stream (struct ui_file *stream)
{
{
  char *message = ui_file_xstrdup (stream, NULL);
  char *message = ui_file_xstrdup (stream, NULL);
  make_cleanup (xfree, message);
  make_cleanup (xfree, message);
  error (("%s"), message);
  error (("%s"), message);
}
}
 
 
/* Dump core trying to increase the core soft limit to hard limit first.  */
/* Dump core trying to increase the core soft limit to hard limit first.  */
 
 
static void
static void
dump_core (void)
dump_core (void)
{
{
#ifdef HAVE_SETRLIMIT
#ifdef HAVE_SETRLIMIT
  struct rlimit rlim = { RLIM_INFINITY, RLIM_INFINITY };
  struct rlimit rlim = { RLIM_INFINITY, RLIM_INFINITY };
 
 
  setrlimit (RLIMIT_CORE, &rlim);
  setrlimit (RLIMIT_CORE, &rlim);
#endif /* HAVE_SETRLIMIT */
#endif /* HAVE_SETRLIMIT */
 
 
  abort ();             /* NOTE: GDB has only three calls to abort().  */
  abort ();             /* NOTE: GDB has only three calls to abort().  */
}
}
 
 
/* Check whether GDB will be able to dump core using the dump_core function.  */
/* Check whether GDB will be able to dump core using the dump_core function.  */
 
 
static int
static int
can_dump_core (const char *reason)
can_dump_core (const char *reason)
{
{
#ifdef HAVE_GETRLIMIT
#ifdef HAVE_GETRLIMIT
  struct rlimit rlim;
  struct rlimit rlim;
 
 
  /* Be quiet and assume we can dump if an error is returned.  */
  /* Be quiet and assume we can dump if an error is returned.  */
  if (getrlimit (RLIMIT_CORE, &rlim) != 0)
  if (getrlimit (RLIMIT_CORE, &rlim) != 0)
    return 1;
    return 1;
 
 
  if (rlim.rlim_max == 0)
  if (rlim.rlim_max == 0)
    {
    {
      fprintf_unfiltered (gdb_stderr,
      fprintf_unfiltered (gdb_stderr,
                          _("%s\nUnable to dump core, use `ulimit -c unlimited'"
                          _("%s\nUnable to dump core, use `ulimit -c unlimited'"
                            " before executing GDB next time.\n"), reason);
                            " before executing GDB next time.\n"), reason);
      return 0;
      return 0;
    }
    }
#endif /* HAVE_GETRLIMIT */
#endif /* HAVE_GETRLIMIT */
 
 
  return 1;
  return 1;
}
}
 
 
/* Allow the user to configure the debugger behavior with respect to
/* Allow the user to configure the debugger behavior with respect to
   what to do when an internal problem is detected.  */
   what to do when an internal problem is detected.  */
 
 
const char internal_problem_ask[] = "ask";
const char internal_problem_ask[] = "ask";
const char internal_problem_yes[] = "yes";
const char internal_problem_yes[] = "yes";
const char internal_problem_no[] = "no";
const char internal_problem_no[] = "no";
static const char *internal_problem_modes[] =
static const char *internal_problem_modes[] =
{
{
  internal_problem_ask,
  internal_problem_ask,
  internal_problem_yes,
  internal_problem_yes,
  internal_problem_no,
  internal_problem_no,
  NULL
  NULL
};
};
static const char *internal_problem_mode = internal_problem_ask;
static const char *internal_problem_mode = internal_problem_ask;
 
 
/* Print a message reporting an internal error/warning. Ask the user
/* Print a message reporting an internal error/warning. Ask the user
   if they want to continue, dump core, or just exit.  Return
   if they want to continue, dump core, or just exit.  Return
   something to indicate a quit.  */
   something to indicate a quit.  */
 
 
struct internal_problem
struct internal_problem
{
{
  const char *name;
  const char *name;
  const char *should_quit;
  const char *should_quit;
  const char *should_dump_core;
  const char *should_dump_core;
};
};
 
 
/* Report a problem, internal to GDB, to the user.  Once the problem
/* Report a problem, internal to GDB, to the user.  Once the problem
   has been reported, and assuming GDB didn't quit, the caller can
   has been reported, and assuming GDB didn't quit, the caller can
   either allow execution to resume or throw an error.  */
   either allow execution to resume or throw an error.  */
 
 
static void ATTR_FORMAT (printf, 4, 0)
static void ATTR_FORMAT (printf, 4, 0)
internal_vproblem (struct internal_problem *problem,
internal_vproblem (struct internal_problem *problem,
                   const char *file, int line, const char *fmt, va_list ap)
                   const char *file, int line, const char *fmt, va_list ap)
{
{
  static int dejavu;
  static int dejavu;
  int quit_p;
  int quit_p;
  int dump_core_p;
  int dump_core_p;
  char *reason;
  char *reason;
 
 
  /* Don't allow infinite error/warning recursion.  */
  /* Don't allow infinite error/warning recursion.  */
  {
  {
    static char msg[] = "Recursive internal problem.\n";
    static char msg[] = "Recursive internal problem.\n";
    switch (dejavu)
    switch (dejavu)
      {
      {
      case 0:
      case 0:
        dejavu = 1;
        dejavu = 1;
        break;
        break;
      case 1:
      case 1:
        dejavu = 2;
        dejavu = 2;
        fputs_unfiltered (msg, gdb_stderr);
        fputs_unfiltered (msg, gdb_stderr);
        abort ();       /* NOTE: GDB has only three calls to abort().  */
        abort ();       /* NOTE: GDB has only three calls to abort().  */
      default:
      default:
        dejavu = 3;
        dejavu = 3;
        /* Newer GLIBC versions put the warn_unused_result attribute
        /* Newer GLIBC versions put the warn_unused_result attribute
           on write, but this is one of those rare cases where
           on write, but this is one of those rare cases where
           ignoring the return value is correct.  Casting to (void)
           ignoring the return value is correct.  Casting to (void)
           does not fix this problem.  This is the solution suggested
           does not fix this problem.  This is the solution suggested
           at http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25509.  */
           at http://gcc.gnu.org/bugzilla/show_bug.cgi?id=25509.  */
        if (write (STDERR_FILENO, msg, sizeof (msg)) != sizeof (msg))
        if (write (STDERR_FILENO, msg, sizeof (msg)) != sizeof (msg))
          abort (); /* NOTE: GDB has only three calls to abort().  */
          abort (); /* NOTE: GDB has only three calls to abort().  */
        exit (1);
        exit (1);
      }
      }
  }
  }
 
 
  /* Try to get the message out and at the start of a new line.  */
  /* Try to get the message out and at the start of a new line.  */
  target_terminal_ours ();
  target_terminal_ours ();
  begin_line ();
  begin_line ();
 
 
  /* Create a string containing the full error/warning message.  Need
  /* Create a string containing the full error/warning message.  Need
     to call query with this full string, as otherwize the reason
     to call query with this full string, as otherwize the reason
     (error/warning) and question become separated.  Format using a
     (error/warning) and question become separated.  Format using a
     style similar to a compiler error message.  Include extra detail
     style similar to a compiler error message.  Include extra detail
     so that the user knows that they are living on the edge.  */
     so that the user knows that they are living on the edge.  */
  {
  {
    char *msg;
    char *msg;
    msg = xstrvprintf (fmt, ap);
    msg = xstrvprintf (fmt, ap);
    reason = xstrprintf ("\
    reason = xstrprintf ("\
%s:%d: %s: %s\n\
%s:%d: %s: %s\n\
A problem internal to GDB has been detected,\n\
A problem internal to GDB has been detected,\n\
further debugging may prove unreliable.", file, line, problem->name, msg);
further debugging may prove unreliable.", file, line, problem->name, msg);
    xfree (msg);
    xfree (msg);
    make_cleanup (xfree, reason);
    make_cleanup (xfree, reason);
  }
  }
 
 
  if (problem->should_quit == internal_problem_ask)
  if (problem->should_quit == internal_problem_ask)
    {
    {
      /* Default (yes/batch case) is to quit GDB.  When in batch mode
      /* Default (yes/batch case) is to quit GDB.  When in batch mode
         this lessens the likelihood of GDB going into an infinite
         this lessens the likelihood of GDB going into an infinite
         loop.  */
         loop.  */
      if (caution == 0)
      if (caution == 0)
        {
        {
          /* Emit the message and quit.  */
          /* Emit the message and quit.  */
          fputs_unfiltered (reason, gdb_stderr);
          fputs_unfiltered (reason, gdb_stderr);
          fputs_unfiltered ("\n", gdb_stderr);
          fputs_unfiltered ("\n", gdb_stderr);
          quit_p = 1;
          quit_p = 1;
        }
        }
      else
      else
        quit_p = query (_("%s\nQuit this debugging session? "), reason);
        quit_p = query (_("%s\nQuit this debugging session? "), reason);
    }
    }
  else if (problem->should_quit == internal_problem_yes)
  else if (problem->should_quit == internal_problem_yes)
    quit_p = 1;
    quit_p = 1;
  else if (problem->should_quit == internal_problem_no)
  else if (problem->should_quit == internal_problem_no)
    quit_p = 0;
    quit_p = 0;
  else
  else
    internal_error (__FILE__, __LINE__, _("bad switch"));
    internal_error (__FILE__, __LINE__, _("bad switch"));
 
 
  if (problem->should_dump_core == internal_problem_ask)
  if (problem->should_dump_core == internal_problem_ask)
    {
    {
      if (!can_dump_core (reason))
      if (!can_dump_core (reason))
        dump_core_p = 0;
        dump_core_p = 0;
      else
      else
        {
        {
          /* Default (yes/batch case) is to dump core.  This leaves a GDB
          /* Default (yes/batch case) is to dump core.  This leaves a GDB
             `dropping' so that it is easier to see that something went
             `dropping' so that it is easier to see that something went
             wrong in GDB.  */
             wrong in GDB.  */
          dump_core_p = query (_("%s\nCreate a core file of GDB? "), reason);
          dump_core_p = query (_("%s\nCreate a core file of GDB? "), reason);
        }
        }
    }
    }
  else if (problem->should_dump_core == internal_problem_yes)
  else if (problem->should_dump_core == internal_problem_yes)
    dump_core_p = can_dump_core (reason);
    dump_core_p = can_dump_core (reason);
  else if (problem->should_dump_core == internal_problem_no)
  else if (problem->should_dump_core == internal_problem_no)
    dump_core_p = 0;
    dump_core_p = 0;
  else
  else
    internal_error (__FILE__, __LINE__, _("bad switch"));
    internal_error (__FILE__, __LINE__, _("bad switch"));
 
 
  if (quit_p)
  if (quit_p)
    {
    {
      if (dump_core_p)
      if (dump_core_p)
        dump_core ();
        dump_core ();
      else
      else
        exit (1);
        exit (1);
    }
    }
  else
  else
    {
    {
      if (dump_core_p)
      if (dump_core_p)
        {
        {
#ifdef HAVE_WORKING_FORK
#ifdef HAVE_WORKING_FORK
          if (fork () == 0)
          if (fork () == 0)
            dump_core ();
            dump_core ();
#endif
#endif
        }
        }
    }
    }
 
 
  dejavu = 0;
  dejavu = 0;
}
}
 
 
static struct internal_problem internal_error_problem = {
static struct internal_problem internal_error_problem = {
  "internal-error", internal_problem_ask, internal_problem_ask
  "internal-error", internal_problem_ask, internal_problem_ask
};
};
 
 
NORETURN void
NORETURN void
internal_verror (const char *file, int line, const char *fmt, va_list ap)
internal_verror (const char *file, int line, const char *fmt, va_list ap)
{
{
  internal_vproblem (&internal_error_problem, file, line, fmt, ap);
  internal_vproblem (&internal_error_problem, file, line, fmt, ap);
  deprecated_throw_reason (RETURN_ERROR);
  deprecated_throw_reason (RETURN_ERROR);
}
}
 
 
NORETURN void
NORETURN void
internal_error (const char *file, int line, const char *string, ...)
internal_error (const char *file, int line, const char *string, ...)
{
{
  va_list ap;
  va_list ap;
  va_start (ap, string);
  va_start (ap, string);
  internal_verror (file, line, string, ap);
  internal_verror (file, line, string, ap);
  va_end (ap);
  va_end (ap);
}
}
 
 
static struct internal_problem internal_warning_problem = {
static struct internal_problem internal_warning_problem = {
  "internal-warning", internal_problem_ask, internal_problem_ask
  "internal-warning", internal_problem_ask, internal_problem_ask
};
};
 
 
void
void
internal_vwarning (const char *file, int line, const char *fmt, va_list ap)
internal_vwarning (const char *file, int line, const char *fmt, va_list ap)
{
{
  internal_vproblem (&internal_warning_problem, file, line, fmt, ap);
  internal_vproblem (&internal_warning_problem, file, line, fmt, ap);
}
}
 
 
void
void
internal_warning (const char *file, int line, const char *string, ...)
internal_warning (const char *file, int line, const char *string, ...)
{
{
  va_list ap;
  va_list ap;
  va_start (ap, string);
  va_start (ap, string);
  internal_vwarning (file, line, string, ap);
  internal_vwarning (file, line, string, ap);
  va_end (ap);
  va_end (ap);
}
}
 
 
/* Dummy functions to keep add_prefix_cmd happy.  */
/* Dummy functions to keep add_prefix_cmd happy.  */
 
 
static void
static void
set_internal_problem_cmd (char *args, int from_tty)
set_internal_problem_cmd (char *args, int from_tty)
{
{
}
}
 
 
static void
static void
show_internal_problem_cmd (char *args, int from_tty)
show_internal_problem_cmd (char *args, int from_tty)
{
{
}
}
 
 
/* When GDB reports an internal problem (error or warning) it gives
/* When GDB reports an internal problem (error or warning) it gives
   the user the opportunity to quit GDB and/or create a core file of
   the user the opportunity to quit GDB and/or create a core file of
   the current debug session.  This function registers a few commands
   the current debug session.  This function registers a few commands
   that make it possible to specify that GDB should always or never
   that make it possible to specify that GDB should always or never
   quit or create a core file, without asking.  The commands look
   quit or create a core file, without asking.  The commands look
   like:
   like:
 
 
   maint set PROBLEM-NAME quit ask|yes|no
   maint set PROBLEM-NAME quit ask|yes|no
   maint show PROBLEM-NAME quit
   maint show PROBLEM-NAME quit
   maint set PROBLEM-NAME corefile ask|yes|no
   maint set PROBLEM-NAME corefile ask|yes|no
   maint show PROBLEM-NAME corefile
   maint show PROBLEM-NAME corefile
 
 
   Where PROBLEM-NAME is currently "internal-error" or
   Where PROBLEM-NAME is currently "internal-error" or
   "internal-warning".  */
   "internal-warning".  */
 
 
static void
static void
add_internal_problem_command (struct internal_problem *problem)
add_internal_problem_command (struct internal_problem *problem)
{
{
  struct cmd_list_element **set_cmd_list;
  struct cmd_list_element **set_cmd_list;
  struct cmd_list_element **show_cmd_list;
  struct cmd_list_element **show_cmd_list;
  char *set_doc;
  char *set_doc;
  char *show_doc;
  char *show_doc;
 
 
  set_cmd_list = xmalloc (sizeof (*set_cmd_list));
  set_cmd_list = xmalloc (sizeof (*set_cmd_list));
  show_cmd_list = xmalloc (sizeof (*set_cmd_list));
  show_cmd_list = xmalloc (sizeof (*set_cmd_list));
  *set_cmd_list = NULL;
  *set_cmd_list = NULL;
  *show_cmd_list = NULL;
  *show_cmd_list = NULL;
 
 
  set_doc = xstrprintf (_("Configure what GDB does when %s is detected."),
  set_doc = xstrprintf (_("Configure what GDB does when %s is detected."),
                        problem->name);
                        problem->name);
 
 
  show_doc = xstrprintf (_("Show what GDB does when %s is detected."),
  show_doc = xstrprintf (_("Show what GDB does when %s is detected."),
                         problem->name);
                         problem->name);
 
 
  add_prefix_cmd ((char*) problem->name,
  add_prefix_cmd ((char*) problem->name,
                  class_maintenance, set_internal_problem_cmd, set_doc,
                  class_maintenance, set_internal_problem_cmd, set_doc,
                  set_cmd_list,
                  set_cmd_list,
                  concat ("maintenance set ", problem->name, " ", NULL),
                  concat ("maintenance set ", problem->name, " ", NULL),
                  0/*allow-unknown*/, &maintenance_set_cmdlist);
                  0/*allow-unknown*/, &maintenance_set_cmdlist);
 
 
  add_prefix_cmd ((char*) problem->name,
  add_prefix_cmd ((char*) problem->name,
                  class_maintenance, show_internal_problem_cmd, show_doc,
                  class_maintenance, show_internal_problem_cmd, show_doc,
                  show_cmd_list,
                  show_cmd_list,
                  concat ("maintenance show ", problem->name, " ", NULL),
                  concat ("maintenance show ", problem->name, " ", NULL),
                  0/*allow-unknown*/, &maintenance_show_cmdlist);
                  0/*allow-unknown*/, &maintenance_show_cmdlist);
 
 
  set_doc = xstrprintf (_("\
  set_doc = xstrprintf (_("\
Set whether GDB should quit when an %s is detected"),
Set whether GDB should quit when an %s is detected"),
                        problem->name);
                        problem->name);
  show_doc = xstrprintf (_("\
  show_doc = xstrprintf (_("\
Show whether GDB will quit when an %s is detected"),
Show whether GDB will quit when an %s is detected"),
                         problem->name);
                         problem->name);
  add_setshow_enum_cmd ("quit", class_maintenance,
  add_setshow_enum_cmd ("quit", class_maintenance,
                        internal_problem_modes,
                        internal_problem_modes,
                        &problem->should_quit,
                        &problem->should_quit,
                        set_doc,
                        set_doc,
                        show_doc,
                        show_doc,
                        NULL, /* help_doc */
                        NULL, /* help_doc */
                        NULL, /* setfunc */
                        NULL, /* setfunc */
                        NULL, /* showfunc */
                        NULL, /* showfunc */
                        set_cmd_list,
                        set_cmd_list,
                        show_cmd_list);
                        show_cmd_list);
 
 
  xfree (set_doc);
  xfree (set_doc);
  xfree (show_doc);
  xfree (show_doc);
 
 
  set_doc = xstrprintf (_("\
  set_doc = xstrprintf (_("\
Set whether GDB should create a core file of GDB when %s is detected"),
Set whether GDB should create a core file of GDB when %s is detected"),
                        problem->name);
                        problem->name);
  show_doc = xstrprintf (_("\
  show_doc = xstrprintf (_("\
Show whether GDB will create a core file of GDB when %s is detected"),
Show whether GDB will create a core file of GDB when %s is detected"),
                         problem->name);
                         problem->name);
  add_setshow_enum_cmd ("corefile", class_maintenance,
  add_setshow_enum_cmd ("corefile", class_maintenance,
                        internal_problem_modes,
                        internal_problem_modes,
                        &problem->should_dump_core,
                        &problem->should_dump_core,
                        set_doc,
                        set_doc,
                        show_doc,
                        show_doc,
                        NULL, /* help_doc */
                        NULL, /* help_doc */
                        NULL, /* setfunc */
                        NULL, /* setfunc */
                        NULL, /* showfunc */
                        NULL, /* showfunc */
                        set_cmd_list,
                        set_cmd_list,
                        show_cmd_list);
                        show_cmd_list);
 
 
  xfree (set_doc);
  xfree (set_doc);
  xfree (show_doc);
  xfree (show_doc);
}
}
 
 
/* Print the system error message for errno, and also mention STRING
/* Print the system error message for errno, and also mention STRING
   as the file name for which the error was encountered.
   as the file name for which the error was encountered.
   Then return to command level.  */
   Then return to command level.  */
 
 
NORETURN void
NORETURN void
perror_with_name (const char *string)
perror_with_name (const char *string)
{
{
  char *err;
  char *err;
  char *combined;
  char *combined;
 
 
  err = safe_strerror (errno);
  err = safe_strerror (errno);
  combined = (char *) alloca (strlen (err) + strlen (string) + 3);
  combined = (char *) alloca (strlen (err) + strlen (string) + 3);
  strcpy (combined, string);
  strcpy (combined, string);
  strcat (combined, ": ");
  strcat (combined, ": ");
  strcat (combined, err);
  strcat (combined, err);
 
 
  /* I understand setting these is a matter of taste.  Still, some people
  /* I understand setting these is a matter of taste.  Still, some people
     may clear errno but not know about bfd_error.  Doing this here is not
     may clear errno but not know about bfd_error.  Doing this here is not
     unreasonable. */
     unreasonable. */
  bfd_set_error (bfd_error_no_error);
  bfd_set_error (bfd_error_no_error);
  errno = 0;
  errno = 0;
 
 
  error (_("%s."), combined);
  error (_("%s."), combined);
}
}
 
 
/* Print the system error message for ERRCODE, and also mention STRING
/* Print the system error message for ERRCODE, and also mention STRING
   as the file name for which the error was encountered.  */
   as the file name for which the error was encountered.  */
 
 
void
void
print_sys_errmsg (const char *string, int errcode)
print_sys_errmsg (const char *string, int errcode)
{
{
  char *err;
  char *err;
  char *combined;
  char *combined;
 
 
  err = safe_strerror (errcode);
  err = safe_strerror (errcode);
  combined = (char *) alloca (strlen (err) + strlen (string) + 3);
  combined = (char *) alloca (strlen (err) + strlen (string) + 3);
  strcpy (combined, string);
  strcpy (combined, string);
  strcat (combined, ": ");
  strcat (combined, ": ");
  strcat (combined, err);
  strcat (combined, err);
 
 
  /* We want anything which was printed on stdout to come out first, before
  /* We want anything which was printed on stdout to come out first, before
     this message.  */
     this message.  */
  gdb_flush (gdb_stdout);
  gdb_flush (gdb_stdout);
  fprintf_unfiltered (gdb_stderr, "%s.\n", combined);
  fprintf_unfiltered (gdb_stderr, "%s.\n", combined);
}
}
 
 
/* Control C eventually causes this to be called, at a convenient time.  */
/* Control C eventually causes this to be called, at a convenient time.  */
 
 
void
void
quit (void)
quit (void)
{
{
#ifdef __MSDOS__
#ifdef __MSDOS__
  /* No steenking SIGINT will ever be coming our way when the
  /* No steenking SIGINT will ever be coming our way when the
     program is resumed.  Don't lie.  */
     program is resumed.  Don't lie.  */
  fatal ("Quit");
  fatal ("Quit");
#else
#else
  if (job_control
  if (job_control
      /* If there is no terminal switching for this target, then we can't
      /* If there is no terminal switching for this target, then we can't
         possibly get screwed by the lack of job control.  */
         possibly get screwed by the lack of job control.  */
      || current_target.to_terminal_ours == NULL)
      || current_target.to_terminal_ours == NULL)
    fatal ("Quit");
    fatal ("Quit");
  else
  else
    fatal ("Quit (expect signal SIGINT when the program is resumed)");
    fatal ("Quit (expect signal SIGINT when the program is resumed)");
#endif
#endif
}
}
 
 


/* Called when a memory allocation fails, with the number of bytes of
/* Called when a memory allocation fails, with the number of bytes of
   memory requested in SIZE. */
   memory requested in SIZE. */
 
 
NORETURN void
NORETURN void
nomem (long size)
nomem (long size)
{
{
  if (size > 0)
  if (size > 0)
    {
    {
      internal_error (__FILE__, __LINE__,
      internal_error (__FILE__, __LINE__,
                      _("virtual memory exhausted: can't allocate %ld bytes."),
                      _("virtual memory exhausted: can't allocate %ld bytes."),
                      size);
                      size);
    }
    }
  else
  else
    {
    {
      internal_error (__FILE__, __LINE__, _("virtual memory exhausted."));
      internal_error (__FILE__, __LINE__, _("virtual memory exhausted."));
    }
    }
}
}
 
 
/* The xmalloc() (libiberty.h) family of memory management routines.
/* The xmalloc() (libiberty.h) family of memory management routines.
 
 
   These are like the ISO-C malloc() family except that they implement
   These are like the ISO-C malloc() family except that they implement
   consistent semantics and guard against typical memory management
   consistent semantics and guard against typical memory management
   problems.  */
   problems.  */
 
 
/* NOTE: These are declared using PTR to ensure consistency with
/* NOTE: These are declared using PTR to ensure consistency with
   "libiberty.h".  xfree() is GDB local.  */
   "libiberty.h".  xfree() is GDB local.  */
 
 
PTR                             /* ARI: PTR */
PTR                             /* ARI: PTR */
xmalloc (size_t size)
xmalloc (size_t size)
{
{
  void *val;
  void *val;
 
 
  /* See libiberty/xmalloc.c.  This function need's to match that's
  /* See libiberty/xmalloc.c.  This function need's to match that's
     semantics.  It never returns NULL.  */
     semantics.  It never returns NULL.  */
  if (size == 0)
  if (size == 0)
    size = 1;
    size = 1;
 
 
  val = malloc (size);          /* ARI: malloc */
  val = malloc (size);          /* ARI: malloc */
  if (val == NULL)
  if (val == NULL)
    nomem (size);
    nomem (size);
 
 
  return (val);
  return (val);
}
}
 
 
void *
void *
xzalloc (size_t size)
xzalloc (size_t size)
{
{
  return xcalloc (1, size);
  return xcalloc (1, size);
}
}
 
 
PTR                             /* ARI: PTR */
PTR                             /* ARI: PTR */
xrealloc (PTR ptr, size_t size) /* ARI: PTR */
xrealloc (PTR ptr, size_t size) /* ARI: PTR */
{
{
  void *val;
  void *val;
 
 
  /* See libiberty/xmalloc.c.  This function need's to match that's
  /* See libiberty/xmalloc.c.  This function need's to match that's
     semantics.  It never returns NULL.  */
     semantics.  It never returns NULL.  */
  if (size == 0)
  if (size == 0)
    size = 1;
    size = 1;
 
 
  if (ptr != NULL)
  if (ptr != NULL)
    val = realloc (ptr, size);  /* ARI: realloc */
    val = realloc (ptr, size);  /* ARI: realloc */
  else
  else
    val = malloc (size);                /* ARI: malloc */
    val = malloc (size);                /* ARI: malloc */
  if (val == NULL)
  if (val == NULL)
    nomem (size);
    nomem (size);
 
 
  return (val);
  return (val);
}
}
 
 
PTR                             /* ARI: PTR */
PTR                             /* ARI: PTR */
xcalloc (size_t number, size_t size)
xcalloc (size_t number, size_t size)
{
{
  void *mem;
  void *mem;
 
 
  /* See libiberty/xmalloc.c.  This function need's to match that's
  /* See libiberty/xmalloc.c.  This function need's to match that's
     semantics.  It never returns NULL.  */
     semantics.  It never returns NULL.  */
  if (number == 0 || size == 0)
  if (number == 0 || size == 0)
    {
    {
      number = 1;
      number = 1;
      size = 1;
      size = 1;
    }
    }
 
 
  mem = calloc (number, size);          /* ARI: xcalloc */
  mem = calloc (number, size);          /* ARI: xcalloc */
  if (mem == NULL)
  if (mem == NULL)
    nomem (number * size);
    nomem (number * size);
 
 
  return mem;
  return mem;
}
}
 
 
void
void
xfree (void *ptr)
xfree (void *ptr)
{
{
  if (ptr != NULL)
  if (ptr != NULL)
    free (ptr);         /* ARI: free */
    free (ptr);         /* ARI: free */
}
}


 
 
/* Like asprintf/vasprintf but get an internal_error if the call
/* Like asprintf/vasprintf but get an internal_error if the call
   fails. */
   fails. */
 
 
char *
char *
xstrprintf (const char *format, ...)
xstrprintf (const char *format, ...)
{
{
  char *ret;
  char *ret;
  va_list args;
  va_list args;
  va_start (args, format);
  va_start (args, format);
  ret = xstrvprintf (format, args);
  ret = xstrvprintf (format, args);
  va_end (args);
  va_end (args);
  return ret;
  return ret;
}
}
 
 
void
void
xasprintf (char **ret, const char *format, ...)
xasprintf (char **ret, const char *format, ...)
{
{
  va_list args;
  va_list args;
  va_start (args, format);
  va_start (args, format);
  (*ret) = xstrvprintf (format, args);
  (*ret) = xstrvprintf (format, args);
  va_end (args);
  va_end (args);
}
}
 
 
void
void
xvasprintf (char **ret, const char *format, va_list ap)
xvasprintf (char **ret, const char *format, va_list ap)
{
{
  (*ret) = xstrvprintf (format, ap);
  (*ret) = xstrvprintf (format, ap);
}
}
 
 
char *
char *
xstrvprintf (const char *format, va_list ap)
xstrvprintf (const char *format, va_list ap)
{
{
  char *ret = NULL;
  char *ret = NULL;
  int status = vasprintf (&ret, format, ap);
  int status = vasprintf (&ret, format, ap);
  /* NULL is returned when there was a memory allocation problem, or
  /* NULL is returned when there was a memory allocation problem, or
     any other error (for instance, a bad format string).  A negative
     any other error (for instance, a bad format string).  A negative
     status (the printed length) with a non-NULL buffer should never
     status (the printed length) with a non-NULL buffer should never
     happen, but just to be sure.  */
     happen, but just to be sure.  */
  if (ret == NULL || status < 0)
  if (ret == NULL || status < 0)
    internal_error (__FILE__, __LINE__, _("vasprintf call failed"));
    internal_error (__FILE__, __LINE__, _("vasprintf call failed"));
  return ret;
  return ret;
}
}
 
 
int
int
xsnprintf (char *str, size_t size, const char *format, ...)
xsnprintf (char *str, size_t size, const char *format, ...)
{
{
  va_list args;
  va_list args;
  int ret;
  int ret;
 
 
  va_start (args, format);
  va_start (args, format);
  ret = vsnprintf (str, size, format, args);
  ret = vsnprintf (str, size, format, args);
  gdb_assert (ret < size);
  gdb_assert (ret < size);
  va_end (args);
  va_end (args);
 
 
  return ret;
  return ret;
}
}
 
 
/* My replacement for the read system call.
/* My replacement for the read system call.
   Used like `read' but keeps going if `read' returns too soon.  */
   Used like `read' but keeps going if `read' returns too soon.  */
 
 
int
int
myread (int desc, char *addr, int len)
myread (int desc, char *addr, int len)
{
{
  int val;
  int val;
  int orglen = len;
  int orglen = len;
 
 
  while (len > 0)
  while (len > 0)
    {
    {
      val = read (desc, addr, len);
      val = read (desc, addr, len);
      if (val < 0)
      if (val < 0)
        return val;
        return val;
      if (val == 0)
      if (val == 0)
        return orglen - len;
        return orglen - len;
      len -= val;
      len -= val;
      addr += val;
      addr += val;
    }
    }
  return orglen;
  return orglen;
}
}


/* Make a copy of the string at PTR with SIZE characters
/* Make a copy of the string at PTR with SIZE characters
   (and add a null character at the end in the copy).
   (and add a null character at the end in the copy).
   Uses malloc to get the space.  Returns the address of the copy.  */
   Uses malloc to get the space.  Returns the address of the copy.  */
 
 
char *
char *
savestring (const char *ptr, size_t size)
savestring (const char *ptr, size_t size)
{
{
  char *p = (char *) xmalloc (size + 1);
  char *p = (char *) xmalloc (size + 1);
  memcpy (p, ptr, size);
  memcpy (p, ptr, size);
  p[size] = 0;
  p[size] = 0;
  return p;
  return p;
}
}
 
 
void
void
print_spaces (int n, struct ui_file *file)
print_spaces (int n, struct ui_file *file)
{
{
  fputs_unfiltered (n_spaces (n), file);
  fputs_unfiltered (n_spaces (n), file);
}
}
 
 
/* Print a host address.  */
/* Print a host address.  */
 
 
void
void
gdb_print_host_address (const void *addr, struct ui_file *stream)
gdb_print_host_address (const void *addr, struct ui_file *stream)
{
{
  fprintf_filtered (stream, "%s", host_address_to_string (addr));
  fprintf_filtered (stream, "%s", host_address_to_string (addr));
}
}


 
 
/* This function supports the query, nquery, and yquery functions.
/* This function supports the query, nquery, and yquery functions.
   Ask user a y-or-n question and return 0 if answer is no, 1 if
   Ask user a y-or-n question and return 0 if answer is no, 1 if
   answer is yes, or default the answer to the specified default
   answer is yes, or default the answer to the specified default
   (for yquery or nquery).  DEFCHAR may be 'y' or 'n' to provide a
   (for yquery or nquery).  DEFCHAR may be 'y' or 'n' to provide a
   default answer, or '\0' for no default.
   default answer, or '\0' for no default.
   CTLSTR is the control string and should end in "? ".  It should
   CTLSTR is the control string and should end in "? ".  It should
   not say how to answer, because we do that.
   not say how to answer, because we do that.
   ARGS are the arguments passed along with the CTLSTR argument to
   ARGS are the arguments passed along with the CTLSTR argument to
   printf.  */
   printf.  */
 
 
static int ATTR_FORMAT (printf, 1, 0)
static int ATTR_FORMAT (printf, 1, 0)
defaulted_query (const char *ctlstr, const char defchar, va_list args)
defaulted_query (const char *ctlstr, const char defchar, va_list args)
{
{
  int answer;
  int answer;
  int ans2;
  int ans2;
  int retval;
  int retval;
  int def_value;
  int def_value;
  char def_answer, not_def_answer;
  char def_answer, not_def_answer;
  char *y_string, *n_string, *question;
  char *y_string, *n_string, *question;
 
 
  /* Set up according to which answer is the default.  */
  /* Set up according to which answer is the default.  */
  if (defchar == '\0')
  if (defchar == '\0')
    {
    {
      def_value = 1;
      def_value = 1;
      def_answer = 'Y';
      def_answer = 'Y';
      not_def_answer = 'N';
      not_def_answer = 'N';
      y_string = "y";
      y_string = "y";
      n_string = "n";
      n_string = "n";
    }
    }
  else if (defchar == 'y')
  else if (defchar == 'y')
    {
    {
      def_value = 1;
      def_value = 1;
      def_answer = 'Y';
      def_answer = 'Y';
      not_def_answer = 'N';
      not_def_answer = 'N';
      y_string = "[y]";
      y_string = "[y]";
      n_string = "n";
      n_string = "n";
    }
    }
  else
  else
    {
    {
      def_value = 0;
      def_value = 0;
      def_answer = 'N';
      def_answer = 'N';
      not_def_answer = 'Y';
      not_def_answer = 'Y';
      y_string = "y";
      y_string = "y";
      n_string = "[n]";
      n_string = "[n]";
    }
    }
 
 
  /* Automatically answer the default value if the user did not want
  /* Automatically answer the default value if the user did not want
     prompts or the command was issued with the server prefix.  */
     prompts or the command was issued with the server prefix.  */
  if (! caution || server_command)
  if (! caution || server_command)
    return def_value;
    return def_value;
 
 
  /* If input isn't coming from the user directly, just say what
  /* If input isn't coming from the user directly, just say what
     question we're asking, and then answer the default automatically.  This
     question we're asking, and then answer the default automatically.  This
     way, important error messages don't get lost when talking to GDB
     way, important error messages don't get lost when talking to GDB
     over a pipe.  */
     over a pipe.  */
  if (! input_from_terminal_p ())
  if (! input_from_terminal_p ())
    {
    {
      wrap_here ("");
      wrap_here ("");
      vfprintf_filtered (gdb_stdout, ctlstr, args);
      vfprintf_filtered (gdb_stdout, ctlstr, args);
 
 
      printf_filtered (_("(%s or %s) [answered %c; input not from terminal]\n"),
      printf_filtered (_("(%s or %s) [answered %c; input not from terminal]\n"),
                       y_string, n_string, def_answer);
                       y_string, n_string, def_answer);
      gdb_flush (gdb_stdout);
      gdb_flush (gdb_stdout);
 
 
      return def_value;
      return def_value;
    }
    }
 
 
  if (deprecated_query_hook)
  if (deprecated_query_hook)
    {
    {
      return deprecated_query_hook (ctlstr, args);
      return deprecated_query_hook (ctlstr, args);
    }
    }
 
 
  /* Format the question outside of the loop, to avoid reusing args.  */
  /* Format the question outside of the loop, to avoid reusing args.  */
  question = xstrvprintf (ctlstr, args);
  question = xstrvprintf (ctlstr, args);
 
 
  while (1)
  while (1)
    {
    {
      wrap_here ("");           /* Flush any buffered output */
      wrap_here ("");           /* Flush any buffered output */
      gdb_flush (gdb_stdout);
      gdb_flush (gdb_stdout);
 
 
      if (annotation_level > 1)
      if (annotation_level > 1)
        printf_filtered (("\n\032\032pre-query\n"));
        printf_filtered (("\n\032\032pre-query\n"));
 
 
      fputs_filtered (question, gdb_stdout);
      fputs_filtered (question, gdb_stdout);
      printf_filtered (_("(%s or %s) "), y_string, n_string);
      printf_filtered (_("(%s or %s) "), y_string, n_string);
 
 
      if (annotation_level > 1)
      if (annotation_level > 1)
        printf_filtered (("\n\032\032query\n"));
        printf_filtered (("\n\032\032query\n"));
 
 
      wrap_here ("");
      wrap_here ("");
      gdb_flush (gdb_stdout);
      gdb_flush (gdb_stdout);
 
 
      answer = fgetc (stdin);
      answer = fgetc (stdin);
 
 
      /* We expect fgetc to block until a character is read.  But
      /* We expect fgetc to block until a character is read.  But
         this may not be the case if the terminal was opened with
         this may not be the case if the terminal was opened with
         the NONBLOCK flag.  In that case, if there is nothing to
         the NONBLOCK flag.  In that case, if there is nothing to
         read on stdin, fgetc returns EOF, but also sets the error
         read on stdin, fgetc returns EOF, but also sets the error
         condition flag on stdin and errno to EAGAIN.  With a true
         condition flag on stdin and errno to EAGAIN.  With a true
         EOF, stdin's error condition flag is not set.
         EOF, stdin's error condition flag is not set.
 
 
         A situation where this behavior was observed is a pseudo
         A situation where this behavior was observed is a pseudo
         terminal on AIX.  */
         terminal on AIX.  */
      while (answer == EOF && ferror (stdin) && errno == EAGAIN)
      while (answer == EOF && ferror (stdin) && errno == EAGAIN)
        {
        {
          /* Not a real EOF.  Wait a little while and try again until
          /* Not a real EOF.  Wait a little while and try again until
             we read something.  */
             we read something.  */
          clearerr (stdin);
          clearerr (stdin);
          gdb_usleep (10000);
          gdb_usleep (10000);
          answer = fgetc (stdin);
          answer = fgetc (stdin);
        }
        }
 
 
      clearerr (stdin);         /* in case of C-d */
      clearerr (stdin);         /* in case of C-d */
      if (answer == EOF)        /* C-d */
      if (answer == EOF)        /* C-d */
        {
        {
          printf_filtered ("EOF [assumed %c]\n", def_answer);
          printf_filtered ("EOF [assumed %c]\n", def_answer);
          retval = def_value;
          retval = def_value;
          break;
          break;
        }
        }
      /* Eat rest of input line, to EOF or newline */
      /* Eat rest of input line, to EOF or newline */
      if (answer != '\n')
      if (answer != '\n')
        do
        do
          {
          {
            ans2 = fgetc (stdin);
            ans2 = fgetc (stdin);
            clearerr (stdin);
            clearerr (stdin);
          }
          }
        while (ans2 != EOF && ans2 != '\n' && ans2 != '\r');
        while (ans2 != EOF && ans2 != '\n' && ans2 != '\r');
 
 
      if (answer >= 'a')
      if (answer >= 'a')
        answer -= 040;
        answer -= 040;
      /* Check answer.  For the non-default, the user must specify
      /* Check answer.  For the non-default, the user must specify
         the non-default explicitly.  */
         the non-default explicitly.  */
      if (answer == not_def_answer)
      if (answer == not_def_answer)
        {
        {
          retval = !def_value;
          retval = !def_value;
          break;
          break;
        }
        }
      /* Otherwise, if a default was specified, the user may either
      /* Otherwise, if a default was specified, the user may either
         specify the required input or have it default by entering
         specify the required input or have it default by entering
         nothing.  */
         nothing.  */
      if (answer == def_answer
      if (answer == def_answer
          || (defchar != '\0' &&
          || (defchar != '\0' &&
              (answer == '\n' || answer == '\r' || answer == EOF)))
              (answer == '\n' || answer == '\r' || answer == EOF)))
        {
        {
          retval = def_value;
          retval = def_value;
          break;
          break;
        }
        }
      /* Invalid entries are not defaulted and require another selection.  */
      /* Invalid entries are not defaulted and require another selection.  */
      printf_filtered (_("Please answer %s or %s.\n"),
      printf_filtered (_("Please answer %s or %s.\n"),
                       y_string, n_string);
                       y_string, n_string);
    }
    }
 
 
  xfree (question);
  xfree (question);
  if (annotation_level > 1)
  if (annotation_level > 1)
    printf_filtered (("\n\032\032post-query\n"));
    printf_filtered (("\n\032\032post-query\n"));
  return retval;
  return retval;
}
}


 
 
/* Ask user a y-or-n question and return 0 if answer is no, 1 if
/* Ask user a y-or-n question and return 0 if answer is no, 1 if
   answer is yes, or 0 if answer is defaulted.
   answer is yes, or 0 if answer is defaulted.
   Takes three args which are given to printf to print the question.
   Takes three args which are given to printf to print the question.
   The first, a control string, should end in "? ".
   The first, a control string, should end in "? ".
   It should not say how to answer, because we do that.  */
   It should not say how to answer, because we do that.  */
 
 
int
int
nquery (const char *ctlstr, ...)
nquery (const char *ctlstr, ...)
{
{
  va_list args;
  va_list args;
 
 
  va_start (args, ctlstr);
  va_start (args, ctlstr);
  return defaulted_query (ctlstr, 'n', args);
  return defaulted_query (ctlstr, 'n', args);
  va_end (args);
  va_end (args);
}
}
 
 
/* Ask user a y-or-n question and return 0 if answer is no, 1 if
/* Ask user a y-or-n question and return 0 if answer is no, 1 if
   answer is yes, or 1 if answer is defaulted.
   answer is yes, or 1 if answer is defaulted.
   Takes three args which are given to printf to print the question.
   Takes three args which are given to printf to print the question.
   The first, a control string, should end in "? ".
   The first, a control string, should end in "? ".
   It should not say how to answer, because we do that.  */
   It should not say how to answer, because we do that.  */
 
 
int
int
yquery (const char *ctlstr, ...)
yquery (const char *ctlstr, ...)
{
{
  va_list args;
  va_list args;
 
 
  va_start (args, ctlstr);
  va_start (args, ctlstr);
  return defaulted_query (ctlstr, 'y', args);
  return defaulted_query (ctlstr, 'y', args);
  va_end (args);
  va_end (args);
}
}
 
 
/* Ask user a y-or-n question and return 1 iff answer is yes.
/* Ask user a y-or-n question and return 1 iff answer is yes.
   Takes three args which are given to printf to print the question.
   Takes three args which are given to printf to print the question.
   The first, a control string, should end in "? ".
   The first, a control string, should end in "? ".
   It should not say how to answer, because we do that.  */
   It should not say how to answer, because we do that.  */
 
 
int
int
query (const char *ctlstr, ...)
query (const char *ctlstr, ...)
{
{
  va_list args;
  va_list args;
 
 
  va_start (args, ctlstr);
  va_start (args, ctlstr);
  return defaulted_query (ctlstr, '\0', args);
  return defaulted_query (ctlstr, '\0', args);
  va_end (args);
  va_end (args);
}
}
 
 
/* A helper for parse_escape that converts a host character to a
/* A helper for parse_escape that converts a host character to a
   target character.  C is the host character.  If conversion is
   target character.  C is the host character.  If conversion is
   possible, then the target character is stored in *TARGET_C and the
   possible, then the target character is stored in *TARGET_C and the
   function returns 1.  Otherwise, the function returns 0.  */
   function returns 1.  Otherwise, the function returns 0.  */
 
 
static int
static int
host_char_to_target (int c, int *target_c)
host_char_to_target (int c, int *target_c)
{
{
  struct obstack host_data;
  struct obstack host_data;
  char the_char = c;
  char the_char = c;
  struct cleanup *cleanups;
  struct cleanup *cleanups;
  int result = 0;
  int result = 0;
 
 
  obstack_init (&host_data);
  obstack_init (&host_data);
  cleanups = make_cleanup_obstack_free (&host_data);
  cleanups = make_cleanup_obstack_free (&host_data);
 
 
  convert_between_encodings (target_charset (), host_charset (),
  convert_between_encodings (target_charset (), host_charset (),
                             &the_char, 1, 1, &host_data, translit_none);
                             &the_char, 1, 1, &host_data, translit_none);
 
 
  if (obstack_object_size (&host_data) == 1)
  if (obstack_object_size (&host_data) == 1)
    {
    {
      result = 1;
      result = 1;
      *target_c = *(char *) obstack_base (&host_data);
      *target_c = *(char *) obstack_base (&host_data);
    }
    }
 
 
  do_cleanups (cleanups);
  do_cleanups (cleanups);
  return result;
  return result;
}
}
 
 
/* Parse a C escape sequence.  STRING_PTR points to a variable
/* Parse a C escape sequence.  STRING_PTR points to a variable
   containing a pointer to the string to parse.  That pointer
   containing a pointer to the string to parse.  That pointer
   should point to the character after the \.  That pointer
   should point to the character after the \.  That pointer
   is updated past the characters we use.  The value of the
   is updated past the characters we use.  The value of the
   escape sequence is returned.
   escape sequence is returned.
 
 
   A negative value means the sequence \ newline was seen,
   A negative value means the sequence \ newline was seen,
   which is supposed to be equivalent to nothing at all.
   which is supposed to be equivalent to nothing at all.
 
 
   If \ is followed by a null character, we return a negative
   If \ is followed by a null character, we return a negative
   value and leave the string pointer pointing at the null character.
   value and leave the string pointer pointing at the null character.
 
 
   If \ is followed by 000, we return 0 and leave the string pointer
   If \ is followed by 000, we return 0 and leave the string pointer
   after the zeros.  A value of 0 does not mean end of string.  */
   after the zeros.  A value of 0 does not mean end of string.  */
 
 
int
int
parse_escape (char **string_ptr)
parse_escape (char **string_ptr)
{
{
  int target_char = -2; /* initialize to avoid GCC warnings */
  int target_char = -2; /* initialize to avoid GCC warnings */
  int c = *(*string_ptr)++;
  int c = *(*string_ptr)++;
  switch (c)
  switch (c)
    {
    {
      case '\n':
      case '\n':
        return -2;
        return -2;
      case 0:
      case 0:
        (*string_ptr)--;
        (*string_ptr)--;
        return 0;
        return 0;
 
 
      case '0':
      case '0':
      case '1':
      case '1':
      case '2':
      case '2':
      case '3':
      case '3':
      case '4':
      case '4':
      case '5':
      case '5':
      case '6':
      case '6':
      case '7':
      case '7':
        {
        {
          int i = host_hex_value (c);
          int i = host_hex_value (c);
          int count = 0;
          int count = 0;
          while (++count < 3)
          while (++count < 3)
            {
            {
              c = (**string_ptr);
              c = (**string_ptr);
              if (isdigit (c) && c != '8' && c != '9')
              if (isdigit (c) && c != '8' && c != '9')
                {
                {
                  (*string_ptr)++;
                  (*string_ptr)++;
                  i *= 8;
                  i *= 8;
                  i += host_hex_value (c);
                  i += host_hex_value (c);
                }
                }
              else
              else
                {
                {
                  break;
                  break;
                }
                }
            }
            }
          return i;
          return i;
        }
        }
 
 
    case 'a':
    case 'a':
      c = '\a';
      c = '\a';
      break;
      break;
    case 'b':
    case 'b':
      c = '\b';
      c = '\b';
      break;
      break;
    case 'f':
    case 'f':
      c = '\f';
      c = '\f';
      break;
      break;
    case 'n':
    case 'n':
      c = '\n';
      c = '\n';
      break;
      break;
    case 'r':
    case 'r':
      c = '\r';
      c = '\r';
      break;
      break;
    case 't':
    case 't':
      c = '\t';
      c = '\t';
      break;
      break;
    case 'v':
    case 'v':
      c = '\v';
      c = '\v';
      break;
      break;
 
 
    default:
    default:
      break;
      break;
    }
    }
 
 
  if (!host_char_to_target (c, &target_char))
  if (!host_char_to_target (c, &target_char))
    error
    error
      ("The escape sequence `\%c' is equivalent to plain `%c', which"
      ("The escape sequence `\%c' is equivalent to plain `%c', which"
       " has no equivalent\n" "in the `%s' character set.", c, c,
       " has no equivalent\n" "in the `%s' character set.", c, c,
       target_charset ());
       target_charset ());
  return target_char;
  return target_char;
}
}


/* Print the character C on STREAM as part of the contents of a literal
/* Print the character C on STREAM as part of the contents of a literal
   string whose delimiter is QUOTER.  Note that this routine should only
   string whose delimiter is QUOTER.  Note that this routine should only
   be call for printing things which are independent of the language
   be call for printing things which are independent of the language
   of the program being debugged. */
   of the program being debugged. */
 
 
static void
static void
printchar (int c, void (*do_fputs) (const char *, struct ui_file *),
printchar (int c, void (*do_fputs) (const char *, struct ui_file *),
           void (*do_fprintf) (struct ui_file *, const char *, ...)
           void (*do_fprintf) (struct ui_file *, const char *, ...)
           ATTRIBUTE_FPTR_PRINTF_2, struct ui_file *stream, int quoter)
           ATTRIBUTE_FPTR_PRINTF_2, struct ui_file *stream, int quoter)
{
{
 
 
  c &= 0xFF;                    /* Avoid sign bit follies */
  c &= 0xFF;                    /* Avoid sign bit follies */
 
 
  if (c < 0x20 ||               /* Low control chars */
  if (c < 0x20 ||               /* Low control chars */
      (c >= 0x7F && c < 0xA0) ||        /* DEL, High controls */
      (c >= 0x7F && c < 0xA0) ||        /* DEL, High controls */
      (sevenbit_strings && c >= 0x80))
      (sevenbit_strings && c >= 0x80))
    {                           /* high order bit set */
    {                           /* high order bit set */
      switch (c)
      switch (c)
        {
        {
        case '\n':
        case '\n':
          do_fputs ("\\n", stream);
          do_fputs ("\\n", stream);
          break;
          break;
        case '\b':
        case '\b':
          do_fputs ("\\b", stream);
          do_fputs ("\\b", stream);
          break;
          break;
        case '\t':
        case '\t':
          do_fputs ("\\t", stream);
          do_fputs ("\\t", stream);
          break;
          break;
        case '\f':
        case '\f':
          do_fputs ("\\f", stream);
          do_fputs ("\\f", stream);
          break;
          break;
        case '\r':
        case '\r':
          do_fputs ("\\r", stream);
          do_fputs ("\\r", stream);
          break;
          break;
        case '\033':
        case '\033':
          do_fputs ("\\e", stream);
          do_fputs ("\\e", stream);
          break;
          break;
        case '\007':
        case '\007':
          do_fputs ("\\a", stream);
          do_fputs ("\\a", stream);
          break;
          break;
        default:
        default:
          do_fprintf (stream, "\\%.3o", (unsigned int) c);
          do_fprintf (stream, "\\%.3o", (unsigned int) c);
          break;
          break;
        }
        }
    }
    }
  else
  else
    {
    {
      if (c == '\\' || c == quoter)
      if (c == '\\' || c == quoter)
        do_fputs ("\\", stream);
        do_fputs ("\\", stream);
      do_fprintf (stream, "%c", c);
      do_fprintf (stream, "%c", c);
    }
    }
}
}
 
 
/* Print the character C on STREAM as part of the contents of a
/* Print the character C on STREAM as part of the contents of a
   literal string whose delimiter is QUOTER.  Note that these routines
   literal string whose delimiter is QUOTER.  Note that these routines
   should only be call for printing things which are independent of
   should only be call for printing things which are independent of
   the language of the program being debugged. */
   the language of the program being debugged. */
 
 
void
void
fputstr_filtered (const char *str, int quoter, struct ui_file *stream)
fputstr_filtered (const char *str, int quoter, struct ui_file *stream)
{
{
  while (*str)
  while (*str)
    printchar (*str++, fputs_filtered, fprintf_filtered, stream, quoter);
    printchar (*str++, fputs_filtered, fprintf_filtered, stream, quoter);
}
}
 
 
void
void
fputstr_unfiltered (const char *str, int quoter, struct ui_file *stream)
fputstr_unfiltered (const char *str, int quoter, struct ui_file *stream)
{
{
  while (*str)
  while (*str)
    printchar (*str++, fputs_unfiltered, fprintf_unfiltered, stream, quoter);
    printchar (*str++, fputs_unfiltered, fprintf_unfiltered, stream, quoter);
}
}
 
 
void
void
fputstrn_filtered (const char *str, int n, int quoter,
fputstrn_filtered (const char *str, int n, int quoter,
                   struct ui_file *stream)
                   struct ui_file *stream)
{
{
  int i;
  int i;
  for (i = 0; i < n; i++)
  for (i = 0; i < n; i++)
    printchar (str[i], fputs_filtered, fprintf_filtered, stream, quoter);
    printchar (str[i], fputs_filtered, fprintf_filtered, stream, quoter);
}
}
 
 
void
void
fputstrn_unfiltered (const char *str, int n, int quoter,
fputstrn_unfiltered (const char *str, int n, int quoter,
                     struct ui_file *stream)
                     struct ui_file *stream)
{
{
  int i;
  int i;
  for (i = 0; i < n; i++)
  for (i = 0; i < n; i++)
    printchar (str[i], fputs_unfiltered, fprintf_unfiltered, stream, quoter);
    printchar (str[i], fputs_unfiltered, fprintf_unfiltered, stream, quoter);
}
}


 
 
/* Number of lines per page or UINT_MAX if paging is disabled.  */
/* Number of lines per page or UINT_MAX if paging is disabled.  */
static unsigned int lines_per_page;
static unsigned int lines_per_page;
static void
static void
show_lines_per_page (struct ui_file *file, int from_tty,
show_lines_per_page (struct ui_file *file, int from_tty,
                     struct cmd_list_element *c, const char *value)
                     struct cmd_list_element *c, const char *value)
{
{
  fprintf_filtered (file, _("\
  fprintf_filtered (file, _("\
Number of lines gdb thinks are in a page is %s.\n"),
Number of lines gdb thinks are in a page is %s.\n"),
                    value);
                    value);
}
}
 
 
/* Number of chars per line or UINT_MAX if line folding is disabled.  */
/* Number of chars per line or UINT_MAX if line folding is disabled.  */
static unsigned int chars_per_line;
static unsigned int chars_per_line;
static void
static void
show_chars_per_line (struct ui_file *file, int from_tty,
show_chars_per_line (struct ui_file *file, int from_tty,
                     struct cmd_list_element *c, const char *value)
                     struct cmd_list_element *c, const char *value)
{
{
  fprintf_filtered (file, _("\
  fprintf_filtered (file, _("\
Number of characters gdb thinks are in a line is %s.\n"),
Number of characters gdb thinks are in a line is %s.\n"),
                    value);
                    value);
}
}
 
 
/* Current count of lines printed on this page, chars on this line.  */
/* Current count of lines printed on this page, chars on this line.  */
static unsigned int lines_printed, chars_printed;
static unsigned int lines_printed, chars_printed;
 
 
/* Buffer and start column of buffered text, for doing smarter word-
/* Buffer and start column of buffered text, for doing smarter word-
   wrapping.  When someone calls wrap_here(), we start buffering output
   wrapping.  When someone calls wrap_here(), we start buffering output
   that comes through fputs_filtered().  If we see a newline, we just
   that comes through fputs_filtered().  If we see a newline, we just
   spit it out and forget about the wrap_here().  If we see another
   spit it out and forget about the wrap_here().  If we see another
   wrap_here(), we spit it out and remember the newer one.  If we see
   wrap_here(), we spit it out and remember the newer one.  If we see
   the end of the line, we spit out a newline, the indent, and then
   the end of the line, we spit out a newline, the indent, and then
   the buffered output.  */
   the buffered output.  */
 
 
/* Malloc'd buffer with chars_per_line+2 bytes.  Contains characters which
/* Malloc'd buffer with chars_per_line+2 bytes.  Contains characters which
   are waiting to be output (they have already been counted in chars_printed).
   are waiting to be output (they have already been counted in chars_printed).
   When wrap_buffer[0] is null, the buffer is empty.  */
   When wrap_buffer[0] is null, the buffer is empty.  */
static char *wrap_buffer;
static char *wrap_buffer;
 
 
/* Pointer in wrap_buffer to the next character to fill.  */
/* Pointer in wrap_buffer to the next character to fill.  */
static char *wrap_pointer;
static char *wrap_pointer;
 
 
/* String to indent by if the wrap occurs.  Must not be NULL if wrap_column
/* String to indent by if the wrap occurs.  Must not be NULL if wrap_column
   is non-zero.  */
   is non-zero.  */
static char *wrap_indent;
static char *wrap_indent;
 
 
/* Column number on the screen where wrap_buffer begins, or 0 if wrapping
/* Column number on the screen where wrap_buffer begins, or 0 if wrapping
   is not in effect.  */
   is not in effect.  */
static int wrap_column;
static int wrap_column;


 
 
/* Inialize the number of lines per page and chars per line.  */
/* Inialize the number of lines per page and chars per line.  */
 
 
void
void
init_page_info (void)
init_page_info (void)
{
{
#if defined(TUI)
#if defined(TUI)
  if (!tui_get_command_dimension (&chars_per_line, &lines_per_page))
  if (!tui_get_command_dimension (&chars_per_line, &lines_per_page))
#endif
#endif
    {
    {
      int rows, cols;
      int rows, cols;
 
 
#if defined(__GO32__)
#if defined(__GO32__)
      rows = ScreenRows ();
      rows = ScreenRows ();
      cols = ScreenCols ();
      cols = ScreenCols ();
      lines_per_page = rows;
      lines_per_page = rows;
      chars_per_line = cols;
      chars_per_line = cols;
#else
#else
      /* Make sure Readline has initialized its terminal settings.  */
      /* Make sure Readline has initialized its terminal settings.  */
      rl_reset_terminal (NULL);
      rl_reset_terminal (NULL);
 
 
      /* Get the screen size from Readline.  */
      /* Get the screen size from Readline.  */
      rl_get_screen_size (&rows, &cols);
      rl_get_screen_size (&rows, &cols);
      lines_per_page = rows;
      lines_per_page = rows;
      chars_per_line = cols;
      chars_per_line = cols;
 
 
      /* Readline should have fetched the termcap entry for us.  */
      /* Readline should have fetched the termcap entry for us.  */
      if (tgetnum ("li") < 0 || getenv ("EMACS"))
      if (tgetnum ("li") < 0 || getenv ("EMACS"))
        {
        {
          /* The number of lines per page is not mentioned in the
          /* The number of lines per page is not mentioned in the
             terminal description.  This probably means that paging is
             terminal description.  This probably means that paging is
             not useful (e.g. emacs shell window), so disable paging.  */
             not useful (e.g. emacs shell window), so disable paging.  */
          lines_per_page = UINT_MAX;
          lines_per_page = UINT_MAX;
        }
        }
 
 
      /* FIXME: Get rid of this junk.  */
      /* FIXME: Get rid of this junk.  */
#if defined(SIGWINCH) && defined(SIGWINCH_HANDLER)
#if defined(SIGWINCH) && defined(SIGWINCH_HANDLER)
      SIGWINCH_HANDLER (SIGWINCH);
      SIGWINCH_HANDLER (SIGWINCH);
#endif
#endif
 
 
      /* If the output is not a terminal, don't paginate it.  */
      /* If the output is not a terminal, don't paginate it.  */
      if (!ui_file_isatty (gdb_stdout))
      if (!ui_file_isatty (gdb_stdout))
        lines_per_page = UINT_MAX;
        lines_per_page = UINT_MAX;
#endif
#endif
    }
    }
 
 
  set_screen_size ();
  set_screen_size ();
  set_width ();
  set_width ();
}
}
 
 
/* Set the screen size based on LINES_PER_PAGE and CHARS_PER_LINE.  */
/* Set the screen size based on LINES_PER_PAGE and CHARS_PER_LINE.  */
 
 
static void
static void
set_screen_size (void)
set_screen_size (void)
{
{
  int rows = lines_per_page;
  int rows = lines_per_page;
  int cols = chars_per_line;
  int cols = chars_per_line;
 
 
  if (rows <= 0)
  if (rows <= 0)
    rows = INT_MAX;
    rows = INT_MAX;
 
 
  if (cols <= 0)
  if (cols <= 0)
    cols = INT_MAX;
    cols = INT_MAX;
 
 
  /* Update Readline's idea of the terminal size.  */
  /* Update Readline's idea of the terminal size.  */
  rl_set_screen_size (rows, cols);
  rl_set_screen_size (rows, cols);
}
}
 
 
/* Reinitialize WRAP_BUFFER according to the current value of
/* Reinitialize WRAP_BUFFER according to the current value of
   CHARS_PER_LINE.  */
   CHARS_PER_LINE.  */
 
 
static void
static void
set_width (void)
set_width (void)
{
{
  if (chars_per_line == 0)
  if (chars_per_line == 0)
    init_page_info ();
    init_page_info ();
 
 
  if (!wrap_buffer)
  if (!wrap_buffer)
    {
    {
      wrap_buffer = (char *) xmalloc (chars_per_line + 2);
      wrap_buffer = (char *) xmalloc (chars_per_line + 2);
      wrap_buffer[0] = '\0';
      wrap_buffer[0] = '\0';
    }
    }
  else
  else
    wrap_buffer = (char *) xrealloc (wrap_buffer, chars_per_line + 2);
    wrap_buffer = (char *) xrealloc (wrap_buffer, chars_per_line + 2);
  wrap_pointer = wrap_buffer;   /* Start it at the beginning.  */
  wrap_pointer = wrap_buffer;   /* Start it at the beginning.  */
}
}
 
 
static void
static void
set_width_command (char *args, int from_tty, struct cmd_list_element *c)
set_width_command (char *args, int from_tty, struct cmd_list_element *c)
{
{
  set_screen_size ();
  set_screen_size ();
  set_width ();
  set_width ();
}
}
 
 
static void
static void
set_height_command (char *args, int from_tty, struct cmd_list_element *c)
set_height_command (char *args, int from_tty, struct cmd_list_element *c)
{
{
  set_screen_size ();
  set_screen_size ();
}
}
 
 
/* Wait, so the user can read what's on the screen.  Prompt the user
/* Wait, so the user can read what's on the screen.  Prompt the user
   to continue by pressing RETURN.  */
   to continue by pressing RETURN.  */
 
 
static void
static void
prompt_for_continue (void)
prompt_for_continue (void)
{
{
  char *ignore;
  char *ignore;
  char cont_prompt[120];
  char cont_prompt[120];
 
 
  if (annotation_level > 1)
  if (annotation_level > 1)
    printf_unfiltered (("\n\032\032pre-prompt-for-continue\n"));
    printf_unfiltered (("\n\032\032pre-prompt-for-continue\n"));
 
 
  strcpy (cont_prompt,
  strcpy (cont_prompt,
          "---Type <return> to continue, or q <return> to quit---");
          "---Type <return> to continue, or q <return> to quit---");
  if (annotation_level > 1)
  if (annotation_level > 1)
    strcat (cont_prompt, "\n\032\032prompt-for-continue\n");
    strcat (cont_prompt, "\n\032\032prompt-for-continue\n");
 
 
  /* We must do this *before* we call gdb_readline, else it will eventually
  /* We must do this *before* we call gdb_readline, else it will eventually
     call us -- thinking that we're trying to print beyond the end of the
     call us -- thinking that we're trying to print beyond the end of the
     screen.  */
     screen.  */
  reinitialize_more_filter ();
  reinitialize_more_filter ();
 
 
  immediate_quit++;
  immediate_quit++;
  /* On a real operating system, the user can quit with SIGINT.
  /* On a real operating system, the user can quit with SIGINT.
     But not on GO32.
     But not on GO32.
 
 
     'q' is provided on all systems so users don't have to change habits
     'q' is provided on all systems so users don't have to change habits
     from system to system, and because telling them what to do in
     from system to system, and because telling them what to do in
     the prompt is more user-friendly than expecting them to think of
     the prompt is more user-friendly than expecting them to think of
     SIGINT.  */
     SIGINT.  */
  /* Call readline, not gdb_readline, because GO32 readline handles control-C
  /* Call readline, not gdb_readline, because GO32 readline handles control-C
     whereas control-C to gdb_readline will cause the user to get dumped
     whereas control-C to gdb_readline will cause the user to get dumped
     out to DOS.  */
     out to DOS.  */
  ignore = gdb_readline_wrapper (cont_prompt);
  ignore = gdb_readline_wrapper (cont_prompt);
 
 
  if (annotation_level > 1)
  if (annotation_level > 1)
    printf_unfiltered (("\n\032\032post-prompt-for-continue\n"));
    printf_unfiltered (("\n\032\032post-prompt-for-continue\n"));
 
 
  if (ignore)
  if (ignore)
    {
    {
      char *p = ignore;
      char *p = ignore;
      while (*p == ' ' || *p == '\t')
      while (*p == ' ' || *p == '\t')
        ++p;
        ++p;
      if (p[0] == 'q')
      if (p[0] == 'q')
        async_request_quit (0);
        async_request_quit (0);
      xfree (ignore);
      xfree (ignore);
    }
    }
  immediate_quit--;
  immediate_quit--;
 
 
  /* Now we have to do this again, so that GDB will know that it doesn't
  /* Now we have to do this again, so that GDB will know that it doesn't
     need to save the ---Type <return>--- line at the top of the screen.  */
     need to save the ---Type <return>--- line at the top of the screen.  */
  reinitialize_more_filter ();
  reinitialize_more_filter ();
 
 
  dont_repeat ();               /* Forget prev cmd -- CR won't repeat it. */
  dont_repeat ();               /* Forget prev cmd -- CR won't repeat it. */
}
}
 
 
/* Reinitialize filter; ie. tell it to reset to original values.  */
/* Reinitialize filter; ie. tell it to reset to original values.  */
 
 
void
void
reinitialize_more_filter (void)
reinitialize_more_filter (void)
{
{
  lines_printed = 0;
  lines_printed = 0;
  chars_printed = 0;
  chars_printed = 0;
}
}
 
 
/* Indicate that if the next sequence of characters overflows the line,
/* Indicate that if the next sequence of characters overflows the line,
   a newline should be inserted here rather than when it hits the end.
   a newline should be inserted here rather than when it hits the end.
   If INDENT is non-null, it is a string to be printed to indent the
   If INDENT is non-null, it is a string to be printed to indent the
   wrapped part on the next line.  INDENT must remain accessible until
   wrapped part on the next line.  INDENT must remain accessible until
   the next call to wrap_here() or until a newline is printed through
   the next call to wrap_here() or until a newline is printed through
   fputs_filtered().
   fputs_filtered().
 
 
   If the line is already overfull, we immediately print a newline and
   If the line is already overfull, we immediately print a newline and
   the indentation, and disable further wrapping.
   the indentation, and disable further wrapping.
 
 
   If we don't know the width of lines, but we know the page height,
   If we don't know the width of lines, but we know the page height,
   we must not wrap words, but should still keep track of newlines
   we must not wrap words, but should still keep track of newlines
   that were explicitly printed.
   that were explicitly printed.
 
 
   INDENT should not contain tabs, as that will mess up the char count
   INDENT should not contain tabs, as that will mess up the char count
   on the next line.  FIXME.
   on the next line.  FIXME.
 
 
   This routine is guaranteed to force out any output which has been
   This routine is guaranteed to force out any output which has been
   squirreled away in the wrap_buffer, so wrap_here ((char *)0) can be
   squirreled away in the wrap_buffer, so wrap_here ((char *)0) can be
   used to force out output from the wrap_buffer.  */
   used to force out output from the wrap_buffer.  */
 
 
void
void
wrap_here (char *indent)
wrap_here (char *indent)
{
{
  /* This should have been allocated, but be paranoid anyway. */
  /* This should have been allocated, but be paranoid anyway. */
  if (!wrap_buffer)
  if (!wrap_buffer)
    internal_error (__FILE__, __LINE__, _("failed internal consistency check"));
    internal_error (__FILE__, __LINE__, _("failed internal consistency check"));
 
 
  if (wrap_buffer[0])
  if (wrap_buffer[0])
    {
    {
      *wrap_pointer = '\0';
      *wrap_pointer = '\0';
      fputs_unfiltered (wrap_buffer, gdb_stdout);
      fputs_unfiltered (wrap_buffer, gdb_stdout);
    }
    }
  wrap_pointer = wrap_buffer;
  wrap_pointer = wrap_buffer;
  wrap_buffer[0] = '\0';
  wrap_buffer[0] = '\0';
  if (chars_per_line == UINT_MAX)       /* No line overflow checking */
  if (chars_per_line == UINT_MAX)       /* No line overflow checking */
    {
    {
      wrap_column = 0;
      wrap_column = 0;
    }
    }
  else if (chars_printed >= chars_per_line)
  else if (chars_printed >= chars_per_line)
    {
    {
      puts_filtered ("\n");
      puts_filtered ("\n");
      if (indent != NULL)
      if (indent != NULL)
        puts_filtered (indent);
        puts_filtered (indent);
      wrap_column = 0;
      wrap_column = 0;
    }
    }
  else
  else
    {
    {
      wrap_column = chars_printed;
      wrap_column = chars_printed;
      if (indent == NULL)
      if (indent == NULL)
        wrap_indent = "";
        wrap_indent = "";
      else
      else
        wrap_indent = indent;
        wrap_indent = indent;
    }
    }
}
}
 
 
/* Print input string to gdb_stdout, filtered, with wrap,
/* Print input string to gdb_stdout, filtered, with wrap,
   arranging strings in columns of n chars. String can be
   arranging strings in columns of n chars. String can be
   right or left justified in the column.  Never prints
   right or left justified in the column.  Never prints
   trailing spaces.  String should never be longer than
   trailing spaces.  String should never be longer than
   width.  FIXME: this could be useful for the EXAMINE
   width.  FIXME: this could be useful for the EXAMINE
   command, which currently doesn't tabulate very well */
   command, which currently doesn't tabulate very well */
 
 
void
void
puts_filtered_tabular (char *string, int width, int right)
puts_filtered_tabular (char *string, int width, int right)
{
{
  int spaces = 0;
  int spaces = 0;
  int stringlen;
  int stringlen;
  char *spacebuf;
  char *spacebuf;
 
 
  gdb_assert (chars_per_line > 0);
  gdb_assert (chars_per_line > 0);
  if (chars_per_line == UINT_MAX)
  if (chars_per_line == UINT_MAX)
    {
    {
      fputs_filtered (string, gdb_stdout);
      fputs_filtered (string, gdb_stdout);
      fputs_filtered ("\n", gdb_stdout);
      fputs_filtered ("\n", gdb_stdout);
      return;
      return;
    }
    }
 
 
  if (((chars_printed - 1) / width + 2) * width >= chars_per_line)
  if (((chars_printed - 1) / width + 2) * width >= chars_per_line)
    fputs_filtered ("\n", gdb_stdout);
    fputs_filtered ("\n", gdb_stdout);
 
 
  if (width >= chars_per_line)
  if (width >= chars_per_line)
    width = chars_per_line - 1;
    width = chars_per_line - 1;
 
 
  stringlen = strlen (string);
  stringlen = strlen (string);
 
 
  if (chars_printed > 0)
  if (chars_printed > 0)
    spaces = width - (chars_printed - 1) % width - 1;
    spaces = width - (chars_printed - 1) % width - 1;
  if (right)
  if (right)
    spaces += width - stringlen;
    spaces += width - stringlen;
 
 
  spacebuf = alloca (spaces + 1);
  spacebuf = alloca (spaces + 1);
  spacebuf[spaces] = '\0';
  spacebuf[spaces] = '\0';
  while (spaces--)
  while (spaces--)
    spacebuf[spaces] = ' ';
    spacebuf[spaces] = ' ';
 
 
  fputs_filtered (spacebuf, gdb_stdout);
  fputs_filtered (spacebuf, gdb_stdout);
  fputs_filtered (string, gdb_stdout);
  fputs_filtered (string, gdb_stdout);
}
}
 
 
 
 
/* Ensure that whatever gets printed next, using the filtered output
/* Ensure that whatever gets printed next, using the filtered output
   commands, starts at the beginning of the line.  I.E. if there is
   commands, starts at the beginning of the line.  I.E. if there is
   any pending output for the current line, flush it and start a new
   any pending output for the current line, flush it and start a new
   line.  Otherwise do nothing. */
   line.  Otherwise do nothing. */
 
 
void
void
begin_line (void)
begin_line (void)
{
{
  if (chars_printed > 0)
  if (chars_printed > 0)
    {
    {
      puts_filtered ("\n");
      puts_filtered ("\n");
    }
    }
}
}
 
 
 
 
/* Like fputs but if FILTER is true, pause after every screenful.
/* Like fputs but if FILTER is true, pause after every screenful.
 
 
   Regardless of FILTER can wrap at points other than the final
   Regardless of FILTER can wrap at points other than the final
   character of a line.
   character of a line.
 
 
   Unlike fputs, fputs_maybe_filtered does not return a value.
   Unlike fputs, fputs_maybe_filtered does not return a value.
   It is OK for LINEBUFFER to be NULL, in which case just don't print
   It is OK for LINEBUFFER to be NULL, in which case just don't print
   anything.
   anything.
 
 
   Note that a longjmp to top level may occur in this routine (only if
   Note that a longjmp to top level may occur in this routine (only if
   FILTER is true) (since prompt_for_continue may do so) so this
   FILTER is true) (since prompt_for_continue may do so) so this
   routine should not be called when cleanups are not in place.  */
   routine should not be called when cleanups are not in place.  */
 
 
static void
static void
fputs_maybe_filtered (const char *linebuffer, struct ui_file *stream,
fputs_maybe_filtered (const char *linebuffer, struct ui_file *stream,
                      int filter)
                      int filter)
{
{
  const char *lineptr;
  const char *lineptr;
 
 
  if (linebuffer == 0)
  if (linebuffer == 0)
    return;
    return;
 
 
  /* Don't do any filtering if it is disabled.  */
  /* Don't do any filtering if it is disabled.  */
  if ((stream != gdb_stdout) || !pagination_enabled
  if ((stream != gdb_stdout) || !pagination_enabled
      || (lines_per_page == UINT_MAX && chars_per_line == UINT_MAX))
      || (lines_per_page == UINT_MAX && chars_per_line == UINT_MAX))
    {
    {
      fputs_unfiltered (linebuffer, stream);
      fputs_unfiltered (linebuffer, stream);
      return;
      return;
    }
    }
 
 
  /* Go through and output each character.  Show line extension
  /* Go through and output each character.  Show line extension
     when this is necessary; prompt user for new page when this is
     when this is necessary; prompt user for new page when this is
     necessary.  */
     necessary.  */
 
 
  lineptr = linebuffer;
  lineptr = linebuffer;
  while (*lineptr)
  while (*lineptr)
    {
    {
      /* Possible new page.  */
      /* Possible new page.  */
      if (filter && (lines_printed >= lines_per_page - 1))
      if (filter && (lines_printed >= lines_per_page - 1))
        prompt_for_continue ();
        prompt_for_continue ();
 
 
      while (*lineptr && *lineptr != '\n')
      while (*lineptr && *lineptr != '\n')
        {
        {
          /* Print a single line.  */
          /* Print a single line.  */
          if (*lineptr == '\t')
          if (*lineptr == '\t')
            {
            {
              if (wrap_column)
              if (wrap_column)
                *wrap_pointer++ = '\t';
                *wrap_pointer++ = '\t';
              else
              else
                fputc_unfiltered ('\t', stream);
                fputc_unfiltered ('\t', stream);
              /* Shifting right by 3 produces the number of tab stops
              /* Shifting right by 3 produces the number of tab stops
                 we have already passed, and then adding one and
                 we have already passed, and then adding one and
                 shifting left 3 advances to the next tab stop.  */
                 shifting left 3 advances to the next tab stop.  */
              chars_printed = ((chars_printed >> 3) + 1) << 3;
              chars_printed = ((chars_printed >> 3) + 1) << 3;
              lineptr++;
              lineptr++;
            }
            }
          else
          else
            {
            {
              if (wrap_column)
              if (wrap_column)
                *wrap_pointer++ = *lineptr;
                *wrap_pointer++ = *lineptr;
              else
              else
                fputc_unfiltered (*lineptr, stream);
                fputc_unfiltered (*lineptr, stream);
              chars_printed++;
              chars_printed++;
              lineptr++;
              lineptr++;
            }
            }
 
 
          if (chars_printed >= chars_per_line)
          if (chars_printed >= chars_per_line)
            {
            {
              unsigned int save_chars = chars_printed;
              unsigned int save_chars = chars_printed;
 
 
              chars_printed = 0;
              chars_printed = 0;
              lines_printed++;
              lines_printed++;
              /* If we aren't actually wrapping, don't output newline --
              /* If we aren't actually wrapping, don't output newline --
                 if chars_per_line is right, we probably just overflowed
                 if chars_per_line is right, we probably just overflowed
                 anyway; if it's wrong, let us keep going.  */
                 anyway; if it's wrong, let us keep going.  */
              if (wrap_column)
              if (wrap_column)
                fputc_unfiltered ('\n', stream);
                fputc_unfiltered ('\n', stream);
 
 
              /* Possible new page.  */
              /* Possible new page.  */
              if (lines_printed >= lines_per_page - 1)
              if (lines_printed >= lines_per_page - 1)
                prompt_for_continue ();
                prompt_for_continue ();
 
 
              /* Now output indentation and wrapped string */
              /* Now output indentation and wrapped string */
              if (wrap_column)
              if (wrap_column)
                {
                {
                  fputs_unfiltered (wrap_indent, stream);
                  fputs_unfiltered (wrap_indent, stream);
                  *wrap_pointer = '\0'; /* Null-terminate saved stuff */
                  *wrap_pointer = '\0'; /* Null-terminate saved stuff */
                  fputs_unfiltered (wrap_buffer, stream);       /* and eject it */
                  fputs_unfiltered (wrap_buffer, stream);       /* and eject it */
                  /* FIXME, this strlen is what prevents wrap_indent from
                  /* FIXME, this strlen is what prevents wrap_indent from
                     containing tabs.  However, if we recurse to print it
                     containing tabs.  However, if we recurse to print it
                     and count its chars, we risk trouble if wrap_indent is
                     and count its chars, we risk trouble if wrap_indent is
                     longer than (the user settable) chars_per_line.
                     longer than (the user settable) chars_per_line.
                     Note also that this can set chars_printed > chars_per_line
                     Note also that this can set chars_printed > chars_per_line
                     if we are printing a long string.  */
                     if we are printing a long string.  */
                  chars_printed = strlen (wrap_indent)
                  chars_printed = strlen (wrap_indent)
                    + (save_chars - wrap_column);
                    + (save_chars - wrap_column);
                  wrap_pointer = wrap_buffer;   /* Reset buffer */
                  wrap_pointer = wrap_buffer;   /* Reset buffer */
                  wrap_buffer[0] = '\0';
                  wrap_buffer[0] = '\0';
                  wrap_column = 0;       /* And disable fancy wrap */
                  wrap_column = 0;       /* And disable fancy wrap */
                }
                }
            }
            }
        }
        }
 
 
      if (*lineptr == '\n')
      if (*lineptr == '\n')
        {
        {
          chars_printed = 0;
          chars_printed = 0;
          wrap_here ((char *) 0);        /* Spit out chars, cancel further wraps */
          wrap_here ((char *) 0);        /* Spit out chars, cancel further wraps */
          lines_printed++;
          lines_printed++;
          fputc_unfiltered ('\n', stream);
          fputc_unfiltered ('\n', stream);
          lineptr++;
          lineptr++;
        }
        }
    }
    }
}
}
 
 
void
void
fputs_filtered (const char *linebuffer, struct ui_file *stream)
fputs_filtered (const char *linebuffer, struct ui_file *stream)
{
{
  fputs_maybe_filtered (linebuffer, stream, 1);
  fputs_maybe_filtered (linebuffer, stream, 1);
}
}
 
 
int
int
putchar_unfiltered (int c)
putchar_unfiltered (int c)
{
{
  char buf = c;
  char buf = c;
  ui_file_write (gdb_stdout, &buf, 1);
  ui_file_write (gdb_stdout, &buf, 1);
  return c;
  return c;
}
}
 
 
/* Write character C to gdb_stdout using GDB's paging mechanism and return C.
/* Write character C to gdb_stdout using GDB's paging mechanism and return C.
   May return nonlocally.  */
   May return nonlocally.  */
 
 
int
int
putchar_filtered (int c)
putchar_filtered (int c)
{
{
  return fputc_filtered (c, gdb_stdout);
  return fputc_filtered (c, gdb_stdout);
}
}
 
 
int
int
fputc_unfiltered (int c, struct ui_file *stream)
fputc_unfiltered (int c, struct ui_file *stream)
{
{
  char buf = c;
  char buf = c;
  ui_file_write (stream, &buf, 1);
  ui_file_write (stream, &buf, 1);
  return c;
  return c;
}
}
 
 
int
int
fputc_filtered (int c, struct ui_file *stream)
fputc_filtered (int c, struct ui_file *stream)
{
{
  char buf[2];
  char buf[2];
 
 
  buf[0] = c;
  buf[0] = c;
  buf[1] = 0;
  buf[1] = 0;
  fputs_filtered (buf, stream);
  fputs_filtered (buf, stream);
  return c;
  return c;
}
}
 
 
/* puts_debug is like fputs_unfiltered, except it prints special
/* puts_debug is like fputs_unfiltered, except it prints special
   characters in printable fashion.  */
   characters in printable fashion.  */
 
 
void
void
puts_debug (char *prefix, char *string, char *suffix)
puts_debug (char *prefix, char *string, char *suffix)
{
{
  int ch;
  int ch;
 
 
  /* Print prefix and suffix after each line.  */
  /* Print prefix and suffix after each line.  */
  static int new_line = 1;
  static int new_line = 1;
  static int return_p = 0;
  static int return_p = 0;
  static char *prev_prefix = "";
  static char *prev_prefix = "";
  static char *prev_suffix = "";
  static char *prev_suffix = "";
 
 
  if (*string == '\n')
  if (*string == '\n')
    return_p = 0;
    return_p = 0;
 
 
  /* If the prefix is changing, print the previous suffix, a new line,
  /* If the prefix is changing, print the previous suffix, a new line,
     and the new prefix.  */
     and the new prefix.  */
  if ((return_p || (strcmp (prev_prefix, prefix) != 0)) && !new_line)
  if ((return_p || (strcmp (prev_prefix, prefix) != 0)) && !new_line)
    {
    {
      fputs_unfiltered (prev_suffix, gdb_stdlog);
      fputs_unfiltered (prev_suffix, gdb_stdlog);
      fputs_unfiltered ("\n", gdb_stdlog);
      fputs_unfiltered ("\n", gdb_stdlog);
      fputs_unfiltered (prefix, gdb_stdlog);
      fputs_unfiltered (prefix, gdb_stdlog);
    }
    }
 
 
  /* Print prefix if we printed a newline during the previous call.  */
  /* Print prefix if we printed a newline during the previous call.  */
  if (new_line)
  if (new_line)
    {
    {
      new_line = 0;
      new_line = 0;
      fputs_unfiltered (prefix, gdb_stdlog);
      fputs_unfiltered (prefix, gdb_stdlog);
    }
    }
 
 
  prev_prefix = prefix;
  prev_prefix = prefix;
  prev_suffix = suffix;
  prev_suffix = suffix;
 
 
  /* Output characters in a printable format.  */
  /* Output characters in a printable format.  */
  while ((ch = *string++) != '\0')
  while ((ch = *string++) != '\0')
    {
    {
      switch (ch)
      switch (ch)
        {
        {
        default:
        default:
          if (isprint (ch))
          if (isprint (ch))
            fputc_unfiltered (ch, gdb_stdlog);
            fputc_unfiltered (ch, gdb_stdlog);
 
 
          else
          else
            fprintf_unfiltered (gdb_stdlog, "\\x%02x", ch & 0xff);
            fprintf_unfiltered (gdb_stdlog, "\\x%02x", ch & 0xff);
          break;
          break;
 
 
        case '\\':
        case '\\':
          fputs_unfiltered ("\\\\", gdb_stdlog);
          fputs_unfiltered ("\\\\", gdb_stdlog);
          break;
          break;
        case '\b':
        case '\b':
          fputs_unfiltered ("\\b", gdb_stdlog);
          fputs_unfiltered ("\\b", gdb_stdlog);
          break;
          break;
        case '\f':
        case '\f':
          fputs_unfiltered ("\\f", gdb_stdlog);
          fputs_unfiltered ("\\f", gdb_stdlog);
          break;
          break;
        case '\n':
        case '\n':
          new_line = 1;
          new_line = 1;
          fputs_unfiltered ("\\n", gdb_stdlog);
          fputs_unfiltered ("\\n", gdb_stdlog);
          break;
          break;
        case '\r':
        case '\r':
          fputs_unfiltered ("\\r", gdb_stdlog);
          fputs_unfiltered ("\\r", gdb_stdlog);
          break;
          break;
        case '\t':
        case '\t':
          fputs_unfiltered ("\\t", gdb_stdlog);
          fputs_unfiltered ("\\t", gdb_stdlog);
          break;
          break;
        case '\v':
        case '\v':
          fputs_unfiltered ("\\v", gdb_stdlog);
          fputs_unfiltered ("\\v", gdb_stdlog);
          break;
          break;
        }
        }
 
 
      return_p = ch == '\r';
      return_p = ch == '\r';
    }
    }
 
 
  /* Print suffix if we printed a newline.  */
  /* Print suffix if we printed a newline.  */
  if (new_line)
  if (new_line)
    {
    {
      fputs_unfiltered (suffix, gdb_stdlog);
      fputs_unfiltered (suffix, gdb_stdlog);
      fputs_unfiltered ("\n", gdb_stdlog);
      fputs_unfiltered ("\n", gdb_stdlog);
    }
    }
}
}
 
 
 
 
/* Print a variable number of ARGS using format FORMAT.  If this
/* Print a variable number of ARGS using format FORMAT.  If this
   information is going to put the amount written (since the last call
   information is going to put the amount written (since the last call
   to REINITIALIZE_MORE_FILTER or the last page break) over the page size,
   to REINITIALIZE_MORE_FILTER or the last page break) over the page size,
   call prompt_for_continue to get the users permision to continue.
   call prompt_for_continue to get the users permision to continue.
 
 
   Unlike fprintf, this function does not return a value.
   Unlike fprintf, this function does not return a value.
 
 
   We implement three variants, vfprintf (takes a vararg list and stream),
   We implement three variants, vfprintf (takes a vararg list and stream),
   fprintf (takes a stream to write on), and printf (the usual).
   fprintf (takes a stream to write on), and printf (the usual).
 
 
   Note also that a longjmp to top level may occur in this routine
   Note also that a longjmp to top level may occur in this routine
   (since prompt_for_continue may do so) so this routine should not be
   (since prompt_for_continue may do so) so this routine should not be
   called when cleanups are not in place.  */
   called when cleanups are not in place.  */
 
 
static void
static void
vfprintf_maybe_filtered (struct ui_file *stream, const char *format,
vfprintf_maybe_filtered (struct ui_file *stream, const char *format,
                         va_list args, int filter)
                         va_list args, int filter)
{
{
  char *linebuffer;
  char *linebuffer;
  struct cleanup *old_cleanups;
  struct cleanup *old_cleanups;
 
 
  linebuffer = xstrvprintf (format, args);
  linebuffer = xstrvprintf (format, args);
  old_cleanups = make_cleanup (xfree, linebuffer);
  old_cleanups = make_cleanup (xfree, linebuffer);
  fputs_maybe_filtered (linebuffer, stream, filter);
  fputs_maybe_filtered (linebuffer, stream, filter);
  do_cleanups (old_cleanups);
  do_cleanups (old_cleanups);
}
}
 
 
 
 
void
void
vfprintf_filtered (struct ui_file *stream, const char *format, va_list args)
vfprintf_filtered (struct ui_file *stream, const char *format, va_list args)
{
{
  vfprintf_maybe_filtered (stream, format, args, 1);
  vfprintf_maybe_filtered (stream, format, args, 1);
}
}
 
 
void
void
vfprintf_unfiltered (struct ui_file *stream, const char *format, va_list args)
vfprintf_unfiltered (struct ui_file *stream, const char *format, va_list args)
{
{
  char *linebuffer;
  char *linebuffer;
  struct cleanup *old_cleanups;
  struct cleanup *old_cleanups;
 
 
  linebuffer = xstrvprintf (format, args);
  linebuffer = xstrvprintf (format, args);
  old_cleanups = make_cleanup (xfree, linebuffer);
  old_cleanups = make_cleanup (xfree, linebuffer);
  if (debug_timestamp && stream == gdb_stdlog)
  if (debug_timestamp && stream == gdb_stdlog)
    {
    {
      struct timeval tm;
      struct timeval tm;
      char *timestamp;
      char *timestamp;
      int len, need_nl;
      int len, need_nl;
 
 
      gettimeofday (&tm, NULL);
      gettimeofday (&tm, NULL);
 
 
      len = strlen (linebuffer);
      len = strlen (linebuffer);
      need_nl = (len > 0 && linebuffer[len - 1] != '\n');
      need_nl = (len > 0 && linebuffer[len - 1] != '\n');
 
 
      timestamp = xstrprintf ("%ld:%ld %s%s",
      timestamp = xstrprintf ("%ld:%ld %s%s",
                              (long) tm.tv_sec, (long) tm.tv_usec,
                              (long) tm.tv_sec, (long) tm.tv_usec,
                              linebuffer,
                              linebuffer,
                              need_nl ? "\n": "");
                              need_nl ? "\n": "");
      make_cleanup (xfree, timestamp);
      make_cleanup (xfree, timestamp);
      fputs_unfiltered (timestamp, stream);
      fputs_unfiltered (timestamp, stream);
    }
    }
  else
  else
    fputs_unfiltered (linebuffer, stream);
    fputs_unfiltered (linebuffer, stream);
  do_cleanups (old_cleanups);
  do_cleanups (old_cleanups);
}
}
 
 
void
void
vprintf_filtered (const char *format, va_list args)
vprintf_filtered (const char *format, va_list args)
{
{
  vfprintf_maybe_filtered (gdb_stdout, format, args, 1);
  vfprintf_maybe_filtered (gdb_stdout, format, args, 1);
}
}
 
 
void
void
vprintf_unfiltered (const char *format, va_list args)
vprintf_unfiltered (const char *format, va_list args)
{
{
  vfprintf_unfiltered (gdb_stdout, format, args);
  vfprintf_unfiltered (gdb_stdout, format, args);
}
}
 
 
void
void
fprintf_filtered (struct ui_file *stream, const char *format, ...)
fprintf_filtered (struct ui_file *stream, const char *format, ...)
{
{
  va_list args;
  va_list args;
  va_start (args, format);
  va_start (args, format);
  vfprintf_filtered (stream, format, args);
  vfprintf_filtered (stream, format, args);
  va_end (args);
  va_end (args);
}
}
 
 
void
void
fprintf_unfiltered (struct ui_file *stream, const char *format, ...)
fprintf_unfiltered (struct ui_file *stream, const char *format, ...)
{
{
  va_list args;
  va_list args;
  va_start (args, format);
  va_start (args, format);
  vfprintf_unfiltered (stream, format, args);
  vfprintf_unfiltered (stream, format, args);
  va_end (args);
  va_end (args);
}
}
 
 
/* Like fprintf_filtered, but prints its result indented.
/* Like fprintf_filtered, but prints its result indented.
   Called as fprintfi_filtered (spaces, stream, format, ...);  */
   Called as fprintfi_filtered (spaces, stream, format, ...);  */
 
 
void
void
fprintfi_filtered (int spaces, struct ui_file *stream, const char *format,
fprintfi_filtered (int spaces, struct ui_file *stream, const char *format,
                   ...)
                   ...)
{
{
  va_list args;
  va_list args;
  va_start (args, format);
  va_start (args, format);
  print_spaces_filtered (spaces, stream);
  print_spaces_filtered (spaces, stream);
 
 
  vfprintf_filtered (stream, format, args);
  vfprintf_filtered (stream, format, args);
  va_end (args);
  va_end (args);
}
}
 
 
 
 
void
void
printf_filtered (const char *format, ...)
printf_filtered (const char *format, ...)
{
{
  va_list args;
  va_list args;
  va_start (args, format);
  va_start (args, format);
  vfprintf_filtered (gdb_stdout, format, args);
  vfprintf_filtered (gdb_stdout, format, args);
  va_end (args);
  va_end (args);
}
}
 
 
 
 
void
void
printf_unfiltered (const char *format, ...)
printf_unfiltered (const char *format, ...)
{
{
  va_list args;
  va_list args;
  va_start (args, format);
  va_start (args, format);
  vfprintf_unfiltered (gdb_stdout, format, args);
  vfprintf_unfiltered (gdb_stdout, format, args);
  va_end (args);
  va_end (args);
}
}
 
 
/* Like printf_filtered, but prints it's result indented.
/* Like printf_filtered, but prints it's result indented.
   Called as printfi_filtered (spaces, format, ...);  */
   Called as printfi_filtered (spaces, format, ...);  */
 
 
void
void
printfi_filtered (int spaces, const char *format, ...)
printfi_filtered (int spaces, const char *format, ...)
{
{
  va_list args;
  va_list args;
  va_start (args, format);
  va_start (args, format);
  print_spaces_filtered (spaces, gdb_stdout);
  print_spaces_filtered (spaces, gdb_stdout);
  vfprintf_filtered (gdb_stdout, format, args);
  vfprintf_filtered (gdb_stdout, format, args);
  va_end (args);
  va_end (args);
}
}
 
 
/* Easy -- but watch out!
/* Easy -- but watch out!
 
 
   This routine is *not* a replacement for puts()!  puts() appends a newline.
   This routine is *not* a replacement for puts()!  puts() appends a newline.
   This one doesn't, and had better not!  */
   This one doesn't, and had better not!  */
 
 
void
void
puts_filtered (const char *string)
puts_filtered (const char *string)
{
{
  fputs_filtered (string, gdb_stdout);
  fputs_filtered (string, gdb_stdout);
}
}
 
 
void
void
puts_unfiltered (const char *string)
puts_unfiltered (const char *string)
{
{
  fputs_unfiltered (string, gdb_stdout);
  fputs_unfiltered (string, gdb_stdout);
}
}
 
 
/* Return a pointer to N spaces and a null.  The pointer is good
/* Return a pointer to N spaces and a null.  The pointer is good
   until the next call to here.  */
   until the next call to here.  */
char *
char *
n_spaces (int n)
n_spaces (int n)
{
{
  char *t;
  char *t;
  static char *spaces = 0;
  static char *spaces = 0;
  static int max_spaces = -1;
  static int max_spaces = -1;
 
 
  if (n > max_spaces)
  if (n > max_spaces)
    {
    {
      if (spaces)
      if (spaces)
        xfree (spaces);
        xfree (spaces);
      spaces = (char *) xmalloc (n + 1);
      spaces = (char *) xmalloc (n + 1);
      for (t = spaces + n; t != spaces;)
      for (t = spaces + n; t != spaces;)
        *--t = ' ';
        *--t = ' ';
      spaces[n] = '\0';
      spaces[n] = '\0';
      max_spaces = n;
      max_spaces = n;
    }
    }
 
 
  return spaces + max_spaces - n;
  return spaces + max_spaces - n;
}
}
 
 
/* Print N spaces.  */
/* Print N spaces.  */
void
void
print_spaces_filtered (int n, struct ui_file *stream)
print_spaces_filtered (int n, struct ui_file *stream)
{
{
  fputs_filtered (n_spaces (n), stream);
  fputs_filtered (n_spaces (n), stream);
}
}


/* C++/ObjC demangler stuff.  */
/* C++/ObjC demangler stuff.  */
 
 
/* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language
/* fprintf_symbol_filtered attempts to demangle NAME, a symbol in language
   LANG, using demangling args ARG_MODE, and print it filtered to STREAM.
   LANG, using demangling args ARG_MODE, and print it filtered to STREAM.
   If the name is not mangled, or the language for the name is unknown, or
   If the name is not mangled, or the language for the name is unknown, or
   demangling is off, the name is printed in its "raw" form. */
   demangling is off, the name is printed in its "raw" form. */
 
 
void
void
fprintf_symbol_filtered (struct ui_file *stream, char *name,
fprintf_symbol_filtered (struct ui_file *stream, char *name,
                         enum language lang, int arg_mode)
                         enum language lang, int arg_mode)
{
{
  char *demangled;
  char *demangled;
 
 
  if (name != NULL)
  if (name != NULL)
    {
    {
      /* If user wants to see raw output, no problem.  */
      /* If user wants to see raw output, no problem.  */
      if (!demangle)
      if (!demangle)
        {
        {
          fputs_filtered (name, stream);
          fputs_filtered (name, stream);
        }
        }
      else
      else
        {
        {
          demangled = language_demangle (language_def (lang), name, arg_mode);
          demangled = language_demangle (language_def (lang), name, arg_mode);
          fputs_filtered (demangled ? demangled : name, stream);
          fputs_filtered (demangled ? demangled : name, stream);
          if (demangled != NULL)
          if (demangled != NULL)
            {
            {
              xfree (demangled);
              xfree (demangled);
            }
            }
        }
        }
    }
    }
}
}
 
 
/* Do a strcmp() type operation on STRING1 and STRING2, ignoring any
/* Do a strcmp() type operation on STRING1 and STRING2, ignoring any
   differences in whitespace.  Returns 0 if they match, non-zero if they
   differences in whitespace.  Returns 0 if they match, non-zero if they
   don't (slightly different than strcmp()'s range of return values).
   don't (slightly different than strcmp()'s range of return values).
 
 
   As an extra hack, string1=="FOO(ARGS)" matches string2=="FOO".
   As an extra hack, string1=="FOO(ARGS)" matches string2=="FOO".
   This "feature" is useful when searching for matching C++ function names
   This "feature" is useful when searching for matching C++ function names
   (such as if the user types 'break FOO', where FOO is a mangled C++
   (such as if the user types 'break FOO', where FOO is a mangled C++
   function). */
   function). */
 
 
int
int
strcmp_iw (const char *string1, const char *string2)
strcmp_iw (const char *string1, const char *string2)
{
{
  while ((*string1 != '\0') && (*string2 != '\0'))
  while ((*string1 != '\0') && (*string2 != '\0'))
    {
    {
      while (isspace (*string1))
      while (isspace (*string1))
        {
        {
          string1++;
          string1++;
        }
        }
      while (isspace (*string2))
      while (isspace (*string2))
        {
        {
          string2++;
          string2++;
        }
        }
      if (*string1 != *string2)
      if (*string1 != *string2)
        {
        {
          break;
          break;
        }
        }
      if (*string1 != '\0')
      if (*string1 != '\0')
        {
        {
          string1++;
          string1++;
          string2++;
          string2++;
        }
        }
    }
    }
  return (*string1 != '\0' && *string1 != '(') || (*string2 != '\0');
  return (*string1 != '\0' && *string1 != '(') || (*string2 != '\0');
}
}
 
 
/* This is like strcmp except that it ignores whitespace and treats
/* This is like strcmp except that it ignores whitespace and treats
   '(' as the first non-NULL character in terms of ordering.  Like
   '(' as the first non-NULL character in terms of ordering.  Like
   strcmp (and unlike strcmp_iw), it returns negative if STRING1 <
   strcmp (and unlike strcmp_iw), it returns negative if STRING1 <
   STRING2, 0 if STRING2 = STRING2, and positive if STRING1 > STRING2
   STRING2, 0 if STRING2 = STRING2, and positive if STRING1 > STRING2
   according to that ordering.
   according to that ordering.
 
 
   If a list is sorted according to this function and if you want to
   If a list is sorted according to this function and if you want to
   find names in the list that match some fixed NAME according to
   find names in the list that match some fixed NAME according to
   strcmp_iw(LIST_ELT, NAME), then the place to start looking is right
   strcmp_iw(LIST_ELT, NAME), then the place to start looking is right
   where this function would put NAME.
   where this function would put NAME.
 
 
   Here are some examples of why using strcmp to sort is a bad idea:
   Here are some examples of why using strcmp to sort is a bad idea:
 
 
   Whitespace example:
   Whitespace example:
 
 
   Say your partial symtab contains: "foo<char *>", "goo".  Then, if
   Say your partial symtab contains: "foo<char *>", "goo".  Then, if
   we try to do a search for "foo<char*>", strcmp will locate this
   we try to do a search for "foo<char*>", strcmp will locate this
   after "foo<char *>" and before "goo".  Then lookup_partial_symbol
   after "foo<char *>" and before "goo".  Then lookup_partial_symbol
   will start looking at strings beginning with "goo", and will never
   will start looking at strings beginning with "goo", and will never
   see the correct match of "foo<char *>".
   see the correct match of "foo<char *>".
 
 
   Parenthesis example:
   Parenthesis example:
 
 
   In practice, this is less like to be an issue, but I'll give it a
   In practice, this is less like to be an issue, but I'll give it a
   shot.  Let's assume that '$' is a legitimate character to occur in
   shot.  Let's assume that '$' is a legitimate character to occur in
   symbols.  (Which may well even be the case on some systems.)  Then
   symbols.  (Which may well even be the case on some systems.)  Then
   say that the partial symbol table contains "foo$" and "foo(int)".
   say that the partial symbol table contains "foo$" and "foo(int)".
   strcmp will put them in this order, since '$' < '('.  Now, if the
   strcmp will put them in this order, since '$' < '('.  Now, if the
   user searches for "foo", then strcmp will sort "foo" before "foo$".
   user searches for "foo", then strcmp will sort "foo" before "foo$".
   Then lookup_partial_symbol will notice that strcmp_iw("foo$",
   Then lookup_partial_symbol will notice that strcmp_iw("foo$",
   "foo") is false, so it won't proceed to the actual match of
   "foo") is false, so it won't proceed to the actual match of
   "foo(int)" with "foo".  */
   "foo(int)" with "foo".  */
 
 
int
int
strcmp_iw_ordered (const char *string1, const char *string2)
strcmp_iw_ordered (const char *string1, const char *string2)
{
{
  while ((*string1 != '\0') && (*string2 != '\0'))
  while ((*string1 != '\0') && (*string2 != '\0'))
    {
    {
      while (isspace (*string1))
      while (isspace (*string1))
        {
        {
          string1++;
          string1++;
        }
        }
      while (isspace (*string2))
      while (isspace (*string2))
        {
        {
          string2++;
          string2++;
        }
        }
      if (*string1 != *string2)
      if (*string1 != *string2)
        {
        {
          break;
          break;
        }
        }
      if (*string1 != '\0')
      if (*string1 != '\0')
        {
        {
          string1++;
          string1++;
          string2++;
          string2++;
        }
        }
    }
    }
 
 
  switch (*string1)
  switch (*string1)
    {
    {
      /* Characters are non-equal unless they're both '\0'; we want to
      /* Characters are non-equal unless they're both '\0'; we want to
         make sure we get the comparison right according to our
         make sure we get the comparison right according to our
         comparison in the cases where one of them is '\0' or '('.  */
         comparison in the cases where one of them is '\0' or '('.  */
    case '\0':
    case '\0':
      if (*string2 == '\0')
      if (*string2 == '\0')
        return 0;
        return 0;
      else
      else
        return -1;
        return -1;
    case '(':
    case '(':
      if (*string2 == '\0')
      if (*string2 == '\0')
        return 1;
        return 1;
      else
      else
        return -1;
        return -1;
    default:
    default:
      if (*string2 == '(')
      if (*string2 == '(')
        return 1;
        return 1;
      else
      else
        return *string1 - *string2;
        return *string1 - *string2;
    }
    }
}
}
 
 
/* A simple comparison function with opposite semantics to strcmp.  */
/* A simple comparison function with opposite semantics to strcmp.  */
 
 
int
int
streq (const char *lhs, const char *rhs)
streq (const char *lhs, const char *rhs)
{
{
  return !strcmp (lhs, rhs);
  return !strcmp (lhs, rhs);
}
}


 
 
/*
/*
   ** subset_compare()
   ** subset_compare()
   **    Answer whether string_to_compare is a full or partial match to
   **    Answer whether string_to_compare is a full or partial match to
   **    template_string.  The partial match must be in sequence starting
   **    template_string.  The partial match must be in sequence starting
   **    at index 0.
   **    at index 0.
 */
 */
int
int
subset_compare (char *string_to_compare, char *template_string)
subset_compare (char *string_to_compare, char *template_string)
{
{
  int match;
  int match;
  if (template_string != (char *) NULL && string_to_compare != (char *) NULL
  if (template_string != (char *) NULL && string_to_compare != (char *) NULL
      && strlen (string_to_compare) <= strlen (template_string))
      && strlen (string_to_compare) <= strlen (template_string))
    match =
    match =
      (strncmp
      (strncmp
       (template_string, string_to_compare, strlen (string_to_compare)) == 0);
       (template_string, string_to_compare, strlen (string_to_compare)) == 0);
  else
  else
    match = 0;
    match = 0;
  return match;
  return match;
}
}
 
 
static void
static void
pagination_on_command (char *arg, int from_tty)
pagination_on_command (char *arg, int from_tty)
{
{
  pagination_enabled = 1;
  pagination_enabled = 1;
}
}
 
 
static void
static void
pagination_off_command (char *arg, int from_tty)
pagination_off_command (char *arg, int from_tty)
{
{
  pagination_enabled = 0;
  pagination_enabled = 0;
}
}
 
 
static void
static void
show_debug_timestamp (struct ui_file *file, int from_tty,
show_debug_timestamp (struct ui_file *file, int from_tty,
                      struct cmd_list_element *c, const char *value)
                      struct cmd_list_element *c, const char *value)
{
{
  fprintf_filtered (file, _("Timestamping debugging messages is %s.\n"), value);
  fprintf_filtered (file, _("Timestamping debugging messages is %s.\n"), value);
}
}


 
 
void
void
initialize_utils (void)
initialize_utils (void)
{
{
  struct cmd_list_element *c;
  struct cmd_list_element *c;
 
 
  add_setshow_uinteger_cmd ("width", class_support, &chars_per_line, _("\
  add_setshow_uinteger_cmd ("width", class_support, &chars_per_line, _("\
Set number of characters gdb thinks are in a line."), _("\
Set number of characters gdb thinks are in a line."), _("\
Show number of characters gdb thinks are in a line."), NULL,
Show number of characters gdb thinks are in a line."), NULL,
                            set_width_command,
                            set_width_command,
                            show_chars_per_line,
                            show_chars_per_line,
                            &setlist, &showlist);
                            &setlist, &showlist);
 
 
  add_setshow_uinteger_cmd ("height", class_support, &lines_per_page, _("\
  add_setshow_uinteger_cmd ("height", class_support, &lines_per_page, _("\
Set number of lines gdb thinks are in a page."), _("\
Set number of lines gdb thinks are in a page."), _("\
Show number of lines gdb thinks are in a page."), NULL,
Show number of lines gdb thinks are in a page."), NULL,
                            set_height_command,
                            set_height_command,
                            show_lines_per_page,
                            show_lines_per_page,
                            &setlist, &showlist);
                            &setlist, &showlist);
 
 
  init_page_info ();
  init_page_info ();
 
 
  add_setshow_boolean_cmd ("demangle", class_support, &demangle, _("\
  add_setshow_boolean_cmd ("demangle", class_support, &demangle, _("\
Set demangling of encoded C++/ObjC names when displaying symbols."), _("\
Set demangling of encoded C++/ObjC names when displaying symbols."), _("\
Show demangling of encoded C++/ObjC names when displaying symbols."), NULL,
Show demangling of encoded C++/ObjC names when displaying symbols."), NULL,
                           NULL,
                           NULL,
                           show_demangle,
                           show_demangle,
                           &setprintlist, &showprintlist);
                           &setprintlist, &showprintlist);
 
 
  add_setshow_boolean_cmd ("pagination", class_support,
  add_setshow_boolean_cmd ("pagination", class_support,
                           &pagination_enabled, _("\
                           &pagination_enabled, _("\
Set state of pagination."), _("\
Set state of pagination."), _("\
Show state of pagination."), NULL,
Show state of pagination."), NULL,
                           NULL,
                           NULL,
                           show_pagination_enabled,
                           show_pagination_enabled,
                           &setlist, &showlist);
                           &setlist, &showlist);
 
 
  if (xdb_commands)
  if (xdb_commands)
    {
    {
      add_com ("am", class_support, pagination_on_command,
      add_com ("am", class_support, pagination_on_command,
               _("Enable pagination"));
               _("Enable pagination"));
      add_com ("sm", class_support, pagination_off_command,
      add_com ("sm", class_support, pagination_off_command,
               _("Disable pagination"));
               _("Disable pagination"));
    }
    }
 
 
  add_setshow_boolean_cmd ("sevenbit-strings", class_support,
  add_setshow_boolean_cmd ("sevenbit-strings", class_support,
                           &sevenbit_strings, _("\
                           &sevenbit_strings, _("\
Set printing of 8-bit characters in strings as \\nnn."), _("\
Set printing of 8-bit characters in strings as \\nnn."), _("\
Show printing of 8-bit characters in strings as \\nnn."), NULL,
Show printing of 8-bit characters in strings as \\nnn."), NULL,
                           NULL,
                           NULL,
                           show_sevenbit_strings,
                           show_sevenbit_strings,
                           &setprintlist, &showprintlist);
                           &setprintlist, &showprintlist);
 
 
  add_setshow_boolean_cmd ("asm-demangle", class_support, &asm_demangle, _("\
  add_setshow_boolean_cmd ("asm-demangle", class_support, &asm_demangle, _("\
Set demangling of C++/ObjC names in disassembly listings."), _("\
Set demangling of C++/ObjC names in disassembly listings."), _("\
Show demangling of C++/ObjC names in disassembly listings."), NULL,
Show demangling of C++/ObjC names in disassembly listings."), NULL,
                           NULL,
                           NULL,
                           show_asm_demangle,
                           show_asm_demangle,
                           &setprintlist, &showprintlist);
                           &setprintlist, &showprintlist);
 
 
  add_setshow_boolean_cmd ("timestamp", class_maintenance,
  add_setshow_boolean_cmd ("timestamp", class_maintenance,
                            &debug_timestamp, _("\
                            &debug_timestamp, _("\
Set timestamping of debugging messages."), _("\
Set timestamping of debugging messages."), _("\
Show timestamping of debugging messages."), _("\
Show timestamping of debugging messages."), _("\
When set, debugging messages will be marked with seconds and microseconds."),
When set, debugging messages will be marked with seconds and microseconds."),
                           NULL,
                           NULL,
                           show_debug_timestamp,
                           show_debug_timestamp,
                           &setdebuglist, &showdebuglist);
                           &setdebuglist, &showdebuglist);
}
}
 
 
/* Machine specific function to handle SIGWINCH signal. */
/* Machine specific function to handle SIGWINCH signal. */
 
 
#ifdef  SIGWINCH_HANDLER_BODY
#ifdef  SIGWINCH_HANDLER_BODY
SIGWINCH_HANDLER_BODY
SIGWINCH_HANDLER_BODY
#endif
#endif
/* print routines to handle variable size regs, etc. */
/* print routines to handle variable size regs, etc. */
/* temporary storage using circular buffer */
/* temporary storage using circular buffer */
#define NUMCELLS 16
#define NUMCELLS 16
#define CELLSIZE 50
#define CELLSIZE 50
static char *
static char *
get_cell (void)
get_cell (void)
{
{
  static char buf[NUMCELLS][CELLSIZE];
  static char buf[NUMCELLS][CELLSIZE];
  static int cell = 0;
  static int cell = 0;
  if (++cell >= NUMCELLS)
  if (++cell >= NUMCELLS)
    cell = 0;
    cell = 0;
  return buf[cell];
  return buf[cell];
}
}
 
 
const char *
const char *
paddress (struct gdbarch *gdbarch, CORE_ADDR addr)
paddress (struct gdbarch *gdbarch, CORE_ADDR addr)
{
{
  /* Truncate address to the size of a target address, avoiding shifts
  /* Truncate address to the size of a target address, avoiding shifts
     larger or equal than the width of a CORE_ADDR.  The local
     larger or equal than the width of a CORE_ADDR.  The local
     variable ADDR_BIT stops the compiler reporting a shift overflow
     variable ADDR_BIT stops the compiler reporting a shift overflow
     when it won't occur. */
     when it won't occur. */
  /* NOTE: This assumes that the significant address information is
  /* NOTE: This assumes that the significant address information is
     kept in the least significant bits of ADDR - the upper bits were
     kept in the least significant bits of ADDR - the upper bits were
     either zero or sign extended.  Should gdbarch_address_to_pointer or
     either zero or sign extended.  Should gdbarch_address_to_pointer or
     some ADDRESS_TO_PRINTABLE() be used to do the conversion?  */
     some ADDRESS_TO_PRINTABLE() be used to do the conversion?  */
 
 
  int addr_bit = gdbarch_addr_bit (gdbarch);
  int addr_bit = gdbarch_addr_bit (gdbarch);
 
 
  if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT))
  if (addr_bit < (sizeof (CORE_ADDR) * HOST_CHAR_BIT))
    addr &= ((CORE_ADDR) 1 << addr_bit) - 1;
    addr &= ((CORE_ADDR) 1 << addr_bit) - 1;
  return hex_string (addr);
  return hex_string (addr);
}
}
 
 
static char *
static char *
decimal2str (char *sign, ULONGEST addr, int width)
decimal2str (char *sign, ULONGEST addr, int width)
{
{
  /* Steal code from valprint.c:print_decimal().  Should this worry
  /* Steal code from valprint.c:print_decimal().  Should this worry
     about the real size of addr as the above does? */
     about the real size of addr as the above does? */
  unsigned long temp[3];
  unsigned long temp[3];
  char *str = get_cell ();
  char *str = get_cell ();
 
 
  int i = 0;
  int i = 0;
  do
  do
    {
    {
      temp[i] = addr % (1000 * 1000 * 1000);
      temp[i] = addr % (1000 * 1000 * 1000);
      addr /= (1000 * 1000 * 1000);
      addr /= (1000 * 1000 * 1000);
      i++;
      i++;
      width -= 9;
      width -= 9;
    }
    }
  while (addr != 0 && i < (sizeof (temp) / sizeof (temp[0])));
  while (addr != 0 && i < (sizeof (temp) / sizeof (temp[0])));
 
 
  width += 9;
  width += 9;
  if (width < 0)
  if (width < 0)
    width = 0;
    width = 0;
 
 
  switch (i)
  switch (i)
    {
    {
    case 1:
    case 1:
      xsnprintf (str, CELLSIZE, "%s%0*lu", sign, width, temp[0]);
      xsnprintf (str, CELLSIZE, "%s%0*lu", sign, width, temp[0]);
      break;
      break;
    case 2:
    case 2:
      xsnprintf (str, CELLSIZE, "%s%0*lu%09lu", sign, width,
      xsnprintf (str, CELLSIZE, "%s%0*lu%09lu", sign, width,
                 temp[1], temp[0]);
                 temp[1], temp[0]);
      break;
      break;
    case 3:
    case 3:
      xsnprintf (str, CELLSIZE, "%s%0*lu%09lu%09lu", sign, width,
      xsnprintf (str, CELLSIZE, "%s%0*lu%09lu%09lu", sign, width,
                 temp[2], temp[1], temp[0]);
                 temp[2], temp[1], temp[0]);
      break;
      break;
    default:
    default:
      internal_error (__FILE__, __LINE__,
      internal_error (__FILE__, __LINE__,
                      _("failed internal consistency check"));
                      _("failed internal consistency check"));
    }
    }
 
 
  return str;
  return str;
}
}
 
 
static char *
static char *
octal2str (ULONGEST addr, int width)
octal2str (ULONGEST addr, int width)
{
{
  unsigned long temp[3];
  unsigned long temp[3];
  char *str = get_cell ();
  char *str = get_cell ();
 
 
  int i = 0;
  int i = 0;
  do
  do
    {
    {
      temp[i] = addr % (0100000 * 0100000);
      temp[i] = addr % (0100000 * 0100000);
      addr /= (0100000 * 0100000);
      addr /= (0100000 * 0100000);
      i++;
      i++;
      width -= 10;
      width -= 10;
    }
    }
  while (addr != 0 && i < (sizeof (temp) / sizeof (temp[0])));
  while (addr != 0 && i < (sizeof (temp) / sizeof (temp[0])));
 
 
  width += 10;
  width += 10;
  if (width < 0)
  if (width < 0)
    width = 0;
    width = 0;
 
 
  switch (i)
  switch (i)
    {
    {
    case 1:
    case 1:
      if (temp[0] == 0)
      if (temp[0] == 0)
        xsnprintf (str, CELLSIZE, "%*o", width, 0);
        xsnprintf (str, CELLSIZE, "%*o", width, 0);
      else
      else
        xsnprintf (str, CELLSIZE, "0%0*lo", width, temp[0]);
        xsnprintf (str, CELLSIZE, "0%0*lo", width, temp[0]);
      break;
      break;
    case 2:
    case 2:
      xsnprintf (str, CELLSIZE, "0%0*lo%010lo", width, temp[1], temp[0]);
      xsnprintf (str, CELLSIZE, "0%0*lo%010lo", width, temp[1], temp[0]);
      break;
      break;
    case 3:
    case 3:
      xsnprintf (str, CELLSIZE, "0%0*lo%010lo%010lo", width,
      xsnprintf (str, CELLSIZE, "0%0*lo%010lo%010lo", width,
                 temp[2], temp[1], temp[0]);
                 temp[2], temp[1], temp[0]);
      break;
      break;
    default:
    default:
      internal_error (__FILE__, __LINE__,
      internal_error (__FILE__, __LINE__,
                      _("failed internal consistency check"));
                      _("failed internal consistency check"));
    }
    }
 
 
  return str;
  return str;
}
}
 
 
char *
char *
pulongest (ULONGEST u)
pulongest (ULONGEST u)
{
{
  return decimal2str ("", u, 0);
  return decimal2str ("", u, 0);
}
}
 
 
char *
char *
plongest (LONGEST l)
plongest (LONGEST l)
{
{
  if (l < 0)
  if (l < 0)
    return decimal2str ("-", -l, 0);
    return decimal2str ("-", -l, 0);
  else
  else
    return decimal2str ("", l, 0);
    return decimal2str ("", l, 0);
}
}
 
 
/* Eliminate warning from compiler on 32-bit systems.  */
/* Eliminate warning from compiler on 32-bit systems.  */
static int thirty_two = 32;
static int thirty_two = 32;
 
 
char *
char *
phex (ULONGEST l, int sizeof_l)
phex (ULONGEST l, int sizeof_l)
{
{
  char *str;
  char *str;
 
 
  switch (sizeof_l)
  switch (sizeof_l)
    {
    {
    case 8:
    case 8:
      str = get_cell ();
      str = get_cell ();
      xsnprintf (str, CELLSIZE, "%08lx%08lx",
      xsnprintf (str, CELLSIZE, "%08lx%08lx",
                 (unsigned long) (l >> thirty_two),
                 (unsigned long) (l >> thirty_two),
                 (unsigned long) (l & 0xffffffff));
                 (unsigned long) (l & 0xffffffff));
      break;
      break;
    case 4:
    case 4:
      str = get_cell ();
      str = get_cell ();
      xsnprintf (str, CELLSIZE, "%08lx", (unsigned long) l);
      xsnprintf (str, CELLSIZE, "%08lx", (unsigned long) l);
      break;
      break;
    case 2:
    case 2:
      str = get_cell ();
      str = get_cell ();
      xsnprintf (str, CELLSIZE, "%04x", (unsigned short) (l & 0xffff));
      xsnprintf (str, CELLSIZE, "%04x", (unsigned short) (l & 0xffff));
      break;
      break;
    default:
    default:
      str = phex (l, sizeof (l));
      str = phex (l, sizeof (l));
      break;
      break;
    }
    }
 
 
  return str;
  return str;
}
}
 
 
char *
char *
phex_nz (ULONGEST l, int sizeof_l)
phex_nz (ULONGEST l, int sizeof_l)
{
{
  char *str;
  char *str;
 
 
  switch (sizeof_l)
  switch (sizeof_l)
    {
    {
    case 8:
    case 8:
      {
      {
        unsigned long high = (unsigned long) (l >> thirty_two);
        unsigned long high = (unsigned long) (l >> thirty_two);
        str = get_cell ();
        str = get_cell ();
        if (high == 0)
        if (high == 0)
          xsnprintf (str, CELLSIZE, "%lx",
          xsnprintf (str, CELLSIZE, "%lx",
                     (unsigned long) (l & 0xffffffff));
                     (unsigned long) (l & 0xffffffff));
        else
        else
          xsnprintf (str, CELLSIZE, "%lx%08lx", high,
          xsnprintf (str, CELLSIZE, "%lx%08lx", high,
                     (unsigned long) (l & 0xffffffff));
                     (unsigned long) (l & 0xffffffff));
        break;
        break;
      }
      }
    case 4:
    case 4:
      str = get_cell ();
      str = get_cell ();
      xsnprintf (str, CELLSIZE, "%lx", (unsigned long) l);
      xsnprintf (str, CELLSIZE, "%lx", (unsigned long) l);
      break;
      break;
    case 2:
    case 2:
      str = get_cell ();
      str = get_cell ();
      xsnprintf (str, CELLSIZE, "%x", (unsigned short) (l & 0xffff));
      xsnprintf (str, CELLSIZE, "%x", (unsigned short) (l & 0xffff));
      break;
      break;
    default:
    default:
      str = phex_nz (l, sizeof (l));
      str = phex_nz (l, sizeof (l));
      break;
      break;
    }
    }
 
 
  return str;
  return str;
}
}
 
 
/* Converts a LONGEST to a C-format hexadecimal literal and stores it
/* Converts a LONGEST to a C-format hexadecimal literal and stores it
   in a static string.  Returns a pointer to this string.  */
   in a static string.  Returns a pointer to this string.  */
char *
char *
hex_string (LONGEST num)
hex_string (LONGEST num)
{
{
  char *result = get_cell ();
  char *result = get_cell ();
  xsnprintf (result, CELLSIZE, "0x%s", phex_nz (num, sizeof (num)));
  xsnprintf (result, CELLSIZE, "0x%s", phex_nz (num, sizeof (num)));
  return result;
  return result;
}
}
 
 
/* Converts a LONGEST number to a C-format hexadecimal literal and
/* Converts a LONGEST number to a C-format hexadecimal literal and
   stores it in a static string.  Returns a pointer to this string
   stores it in a static string.  Returns a pointer to this string
   that is valid until the next call.  The number is padded on the
   that is valid until the next call.  The number is padded on the
   left with 0s to at least WIDTH characters.  */
   left with 0s to at least WIDTH characters.  */
char *
char *
hex_string_custom (LONGEST num, int width)
hex_string_custom (LONGEST num, int width)
{
{
  char *result = get_cell ();
  char *result = get_cell ();
  char *result_end = result + CELLSIZE - 1;
  char *result_end = result + CELLSIZE - 1;
  const char *hex = phex_nz (num, sizeof (num));
  const char *hex = phex_nz (num, sizeof (num));
  int hex_len = strlen (hex);
  int hex_len = strlen (hex);
 
 
  if (hex_len > width)
  if (hex_len > width)
    width = hex_len;
    width = hex_len;
  if (width + 2 >= CELLSIZE)
  if (width + 2 >= CELLSIZE)
    internal_error (__FILE__, __LINE__,
    internal_error (__FILE__, __LINE__,
                    _("hex_string_custom: insufficient space to store result"));
                    _("hex_string_custom: insufficient space to store result"));
 
 
  strcpy (result_end - width - 2, "0x");
  strcpy (result_end - width - 2, "0x");
  memset (result_end - width, '0', width);
  memset (result_end - width, '0', width);
  strcpy (result_end - hex_len, hex);
  strcpy (result_end - hex_len, hex);
  return result_end - width - 2;
  return result_end - width - 2;
}
}
 
 
/* Convert VAL to a numeral in the given radix.  For
/* Convert VAL to a numeral in the given radix.  For
 * radix 10, IS_SIGNED may be true, indicating a signed quantity;
 * radix 10, IS_SIGNED may be true, indicating a signed quantity;
 * otherwise VAL is interpreted as unsigned.  If WIDTH is supplied,
 * otherwise VAL is interpreted as unsigned.  If WIDTH is supplied,
 * it is the minimum width (0-padded if needed).  USE_C_FORMAT means
 * it is the minimum width (0-padded if needed).  USE_C_FORMAT means
 * to use C format in all cases.  If it is false, then 'x'
 * to use C format in all cases.  If it is false, then 'x'
 * and 'o' formats do not include a prefix (0x or leading 0). */
 * and 'o' formats do not include a prefix (0x or leading 0). */
 
 
char *
char *
int_string (LONGEST val, int radix, int is_signed, int width,
int_string (LONGEST val, int radix, int is_signed, int width,
            int use_c_format)
            int use_c_format)
{
{
  switch (radix)
  switch (radix)
    {
    {
    case 16:
    case 16:
      {
      {
        char *result;
        char *result;
        if (width == 0)
        if (width == 0)
          result = hex_string (val);
          result = hex_string (val);
        else
        else
          result = hex_string_custom (val, width);
          result = hex_string_custom (val, width);
        if (! use_c_format)
        if (! use_c_format)
          result += 2;
          result += 2;
        return result;
        return result;
      }
      }
    case 10:
    case 10:
      {
      {
        if (is_signed && val < 0)
        if (is_signed && val < 0)
          return decimal2str ("-", -val, width);
          return decimal2str ("-", -val, width);
        else
        else
          return decimal2str ("", val, width);
          return decimal2str ("", val, width);
      }
      }
    case 8:
    case 8:
      {
      {
        char *result = octal2str (val, width);
        char *result = octal2str (val, width);
        if (use_c_format || val == 0)
        if (use_c_format || val == 0)
          return result;
          return result;
        else
        else
          return result + 1;
          return result + 1;
      }
      }
    default:
    default:
      internal_error (__FILE__, __LINE__,
      internal_error (__FILE__, __LINE__,
                      _("failed internal consistency check"));
                      _("failed internal consistency check"));
    }
    }
}
}
 
 
/* Convert a CORE_ADDR into a string.  */
/* Convert a CORE_ADDR into a string.  */
const char *
const char *
core_addr_to_string (const CORE_ADDR addr)
core_addr_to_string (const CORE_ADDR addr)
{
{
  char *str = get_cell ();
  char *str = get_cell ();
  strcpy (str, "0x");
  strcpy (str, "0x");
  strcat (str, phex (addr, sizeof (addr)));
  strcat (str, phex (addr, sizeof (addr)));
  return str;
  return str;
}
}
 
 
const char *
const char *
core_addr_to_string_nz (const CORE_ADDR addr)
core_addr_to_string_nz (const CORE_ADDR addr)
{
{
  char *str = get_cell ();
  char *str = get_cell ();
  strcpy (str, "0x");
  strcpy (str, "0x");
  strcat (str, phex_nz (addr, sizeof (addr)));
  strcat (str, phex_nz (addr, sizeof (addr)));
  return str;
  return str;
}
}
 
 
/* Convert a string back into a CORE_ADDR.  */
/* Convert a string back into a CORE_ADDR.  */
CORE_ADDR
CORE_ADDR
string_to_core_addr (const char *my_string)
string_to_core_addr (const char *my_string)
{
{
  CORE_ADDR addr = 0;
  CORE_ADDR addr = 0;
 
 
  if (my_string[0] == '0' && tolower (my_string[1]) == 'x')
  if (my_string[0] == '0' && tolower (my_string[1]) == 'x')
    {
    {
      /* Assume that it is in hex.  */
      /* Assume that it is in hex.  */
      int i;
      int i;
      for (i = 2; my_string[i] != '\0'; i++)
      for (i = 2; my_string[i] != '\0'; i++)
        {
        {
          if (isdigit (my_string[i]))
          if (isdigit (my_string[i]))
            addr = (my_string[i] - '0') + (addr * 16);
            addr = (my_string[i] - '0') + (addr * 16);
          else if (isxdigit (my_string[i]))
          else if (isxdigit (my_string[i]))
            addr = (tolower (my_string[i]) - 'a' + 0xa) + (addr * 16);
            addr = (tolower (my_string[i]) - 'a' + 0xa) + (addr * 16);
          else
          else
            error (_("invalid hex \"%s\""), my_string);
            error (_("invalid hex \"%s\""), my_string);
        }
        }
    }
    }
  else
  else
    {
    {
      /* Assume that it is in decimal.  */
      /* Assume that it is in decimal.  */
      int i;
      int i;
      for (i = 0; my_string[i] != '\0'; i++)
      for (i = 0; my_string[i] != '\0'; i++)
        {
        {
          if (isdigit (my_string[i]))
          if (isdigit (my_string[i]))
            addr = (my_string[i] - '0') + (addr * 10);
            addr = (my_string[i] - '0') + (addr * 10);
          else
          else
            error (_("invalid decimal \"%s\""), my_string);
            error (_("invalid decimal \"%s\""), my_string);
        }
        }
    }
    }
 
 
  return addr;
  return addr;
}
}
 
 
const char *
const char *
host_address_to_string (const void *addr)
host_address_to_string (const void *addr)
{
{
  char *str = get_cell ();
  char *str = get_cell ();
 
 
  xsnprintf (str, CELLSIZE, "0x%s", phex_nz ((uintptr_t) addr, sizeof (addr)));
  xsnprintf (str, CELLSIZE, "0x%s", phex_nz ((uintptr_t) addr, sizeof (addr)));
  return str;
  return str;
}
}
 
 
char *
char *
gdb_realpath (const char *filename)
gdb_realpath (const char *filename)
{
{
  /* Method 1: The system has a compile time upper bound on a filename
  /* Method 1: The system has a compile time upper bound on a filename
     path.  Use that and realpath() to canonicalize the name.  This is
     path.  Use that and realpath() to canonicalize the name.  This is
     the most common case.  Note that, if there isn't a compile time
     the most common case.  Note that, if there isn't a compile time
     upper bound, you want to avoid realpath() at all costs.  */
     upper bound, you want to avoid realpath() at all costs.  */
#if defined(HAVE_REALPATH)
#if defined(HAVE_REALPATH)
  {
  {
# if defined (PATH_MAX)
# if defined (PATH_MAX)
    char buf[PATH_MAX];
    char buf[PATH_MAX];
#  define USE_REALPATH
#  define USE_REALPATH
# elif defined (MAXPATHLEN)
# elif defined (MAXPATHLEN)
    char buf[MAXPATHLEN];
    char buf[MAXPATHLEN];
#  define USE_REALPATH
#  define USE_REALPATH
# endif
# endif
# if defined (USE_REALPATH)
# if defined (USE_REALPATH)
    const char *rp = realpath (filename, buf);
    const char *rp = realpath (filename, buf);
    if (rp == NULL)
    if (rp == NULL)
      rp = filename;
      rp = filename;
    return xstrdup (rp);
    return xstrdup (rp);
# endif
# endif
  }
  }
#endif /* HAVE_REALPATH */
#endif /* HAVE_REALPATH */
 
 
  /* Method 2: The host system (i.e., GNU) has the function
  /* Method 2: The host system (i.e., GNU) has the function
     canonicalize_file_name() which malloc's a chunk of memory and
     canonicalize_file_name() which malloc's a chunk of memory and
     returns that, use that.  */
     returns that, use that.  */
#if defined(HAVE_CANONICALIZE_FILE_NAME)
#if defined(HAVE_CANONICALIZE_FILE_NAME)
  {
  {
    char *rp = canonicalize_file_name (filename);
    char *rp = canonicalize_file_name (filename);
    if (rp == NULL)
    if (rp == NULL)
      return xstrdup (filename);
      return xstrdup (filename);
    else
    else
      return rp;
      return rp;
  }
  }
#endif
#endif
 
 
  /* FIXME: cagney/2002-11-13:
  /* FIXME: cagney/2002-11-13:
 
 
     Method 2a: Use realpath() with a NULL buffer.  Some systems, due
     Method 2a: Use realpath() with a NULL buffer.  Some systems, due
     to the problems described in in method 3, have modified their
     to the problems described in in method 3, have modified their
     realpath() implementation so that it will allocate a buffer when
     realpath() implementation so that it will allocate a buffer when
     NULL is passed in.  Before this can be used, though, some sort of
     NULL is passed in.  Before this can be used, though, some sort of
     configure time test would need to be added.  Otherwize the code
     configure time test would need to be added.  Otherwize the code
     will likely core dump.  */
     will likely core dump.  */
 
 
  /* Method 3: Now we're getting desperate!  The system doesn't have a
  /* Method 3: Now we're getting desperate!  The system doesn't have a
     compile time buffer size and no alternative function.  Query the
     compile time buffer size and no alternative function.  Query the
     OS, using pathconf(), for the buffer limit.  Care is needed
     OS, using pathconf(), for the buffer limit.  Care is needed
     though, some systems do not limit PATH_MAX (return -1 for
     though, some systems do not limit PATH_MAX (return -1 for
     pathconf()) making it impossible to pass a correctly sized buffer
     pathconf()) making it impossible to pass a correctly sized buffer
     to realpath() (it could always overflow).  On those systems, we
     to realpath() (it could always overflow).  On those systems, we
     skip this.  */
     skip this.  */
#if defined (HAVE_REALPATH) && defined (HAVE_UNISTD_H) && defined(HAVE_ALLOCA)
#if defined (HAVE_REALPATH) && defined (HAVE_UNISTD_H) && defined(HAVE_ALLOCA)
  {
  {
    /* Find out the max path size.  */
    /* Find out the max path size.  */
    long path_max = pathconf ("/", _PC_PATH_MAX);
    long path_max = pathconf ("/", _PC_PATH_MAX);
    if (path_max > 0)
    if (path_max > 0)
      {
      {
        /* PATH_MAX is bounded.  */
        /* PATH_MAX is bounded.  */
        char *buf = alloca (path_max);
        char *buf = alloca (path_max);
        char *rp = realpath (filename, buf);
        char *rp = realpath (filename, buf);
        return xstrdup (rp ? rp : filename);
        return xstrdup (rp ? rp : filename);
      }
      }
  }
  }
#endif
#endif
 
 
  /* This system is a lost cause, just dup the buffer.  */
  /* This system is a lost cause, just dup the buffer.  */
  return xstrdup (filename);
  return xstrdup (filename);
}
}
 
 
/* Return a copy of FILENAME, with its directory prefix canonicalized
/* Return a copy of FILENAME, with its directory prefix canonicalized
   by gdb_realpath.  */
   by gdb_realpath.  */
 
 
char *
char *
xfullpath (const char *filename)
xfullpath (const char *filename)
{
{
  const char *base_name = lbasename (filename);
  const char *base_name = lbasename (filename);
  char *dir_name;
  char *dir_name;
  char *real_path;
  char *real_path;
  char *result;
  char *result;
 
 
  /* Extract the basename of filename, and return immediately
  /* Extract the basename of filename, and return immediately
     a copy of filename if it does not contain any directory prefix. */
     a copy of filename if it does not contain any directory prefix. */
  if (base_name == filename)
  if (base_name == filename)
    return xstrdup (filename);
    return xstrdup (filename);
 
 
  dir_name = alloca ((size_t) (base_name - filename + 2));
  dir_name = alloca ((size_t) (base_name - filename + 2));
  /* Allocate enough space to store the dir_name + plus one extra
  /* Allocate enough space to store the dir_name + plus one extra
     character sometimes needed under Windows (see below), and
     character sometimes needed under Windows (see below), and
     then the closing \000 character */
     then the closing \000 character */
  strncpy (dir_name, filename, base_name - filename);
  strncpy (dir_name, filename, base_name - filename);
  dir_name[base_name - filename] = '\000';
  dir_name[base_name - filename] = '\000';
 
 
#ifdef HAVE_DOS_BASED_FILE_SYSTEM
#ifdef HAVE_DOS_BASED_FILE_SYSTEM
  /* We need to be careful when filename is of the form 'd:foo', which
  /* We need to be careful when filename is of the form 'd:foo', which
     is equivalent of d:./foo, which is totally different from d:/foo.  */
     is equivalent of d:./foo, which is totally different from d:/foo.  */
  if (strlen (dir_name) == 2 && isalpha (dir_name[0]) && dir_name[1] == ':')
  if (strlen (dir_name) == 2 && isalpha (dir_name[0]) && dir_name[1] == ':')
    {
    {
      dir_name[2] = '.';
      dir_name[2] = '.';
      dir_name[3] = '\000';
      dir_name[3] = '\000';
    }
    }
#endif
#endif
 
 
  /* Canonicalize the directory prefix, and build the resulting
  /* Canonicalize the directory prefix, and build the resulting
     filename. If the dirname realpath already contains an ending
     filename. If the dirname realpath already contains an ending
     directory separator, avoid doubling it.  */
     directory separator, avoid doubling it.  */
  real_path = gdb_realpath (dir_name);
  real_path = gdb_realpath (dir_name);
  if (IS_DIR_SEPARATOR (real_path[strlen (real_path) - 1]))
  if (IS_DIR_SEPARATOR (real_path[strlen (real_path) - 1]))
    result = concat (real_path, base_name, (char *)NULL);
    result = concat (real_path, base_name, (char *)NULL);
  else
  else
    result = concat (real_path, SLASH_STRING, base_name, (char *)NULL);
    result = concat (real_path, SLASH_STRING, base_name, (char *)NULL);
 
 
  xfree (real_path);
  xfree (real_path);
  return result;
  return result;
}
}
 
 
 
 
/* This is the 32-bit CRC function used by the GNU separate debug
/* This is the 32-bit CRC function used by the GNU separate debug
   facility.  An executable may contain a section named
   facility.  An executable may contain a section named
   .gnu_debuglink, which holds the name of a separate executable file
   .gnu_debuglink, which holds the name of a separate executable file
   containing its debug info, and a checksum of that file's contents,
   containing its debug info, and a checksum of that file's contents,
   computed using this function.  */
   computed using this function.  */
unsigned long
unsigned long
gnu_debuglink_crc32 (unsigned long crc, unsigned char *buf, size_t len)
gnu_debuglink_crc32 (unsigned long crc, unsigned char *buf, size_t len)
{
{
  static const unsigned int crc32_table[256] = {
  static const unsigned int crc32_table[256] = {
    0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419,
    0x00000000, 0x77073096, 0xee0e612c, 0x990951ba, 0x076dc419,
    0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4,
    0x706af48f, 0xe963a535, 0x9e6495a3, 0x0edb8832, 0x79dcb8a4,
    0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07,
    0xe0d5e91e, 0x97d2d988, 0x09b64c2b, 0x7eb17cbd, 0xe7b82d07,
    0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
    0x90bf1d91, 0x1db71064, 0x6ab020f2, 0xf3b97148, 0x84be41de,
    0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856,
    0x1adad47d, 0x6ddde4eb, 0xf4d4b551, 0x83d385c7, 0x136c9856,
    0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
    0x646ba8c0, 0xfd62f97a, 0x8a65c9ec, 0x14015c4f, 0x63066cd9,
    0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4,
    0xfa0f3d63, 0x8d080df5, 0x3b6e20c8, 0x4c69105e, 0xd56041e4,
    0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
    0xa2677172, 0x3c03e4d1, 0x4b04d447, 0xd20d85fd, 0xa50ab56b,
    0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3,
    0x35b5a8fa, 0x42b2986c, 0xdbbbc9d6, 0xacbcf940, 0x32d86ce3,
    0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a,
    0x45df5c75, 0xdcd60dcf, 0xabd13d59, 0x26d930ac, 0x51de003a,
    0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599,
    0xc8d75180, 0xbfd06116, 0x21b4f4b5, 0x56b3c423, 0xcfba9599,
    0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
    0xb8bda50f, 0x2802b89e, 0x5f058808, 0xc60cd9b2, 0xb10be924,
    0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190,
    0x2f6f7c87, 0x58684c11, 0xc1611dab, 0xb6662d3d, 0x76dc4190,
    0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f,
    0x01db7106, 0x98d220bc, 0xefd5102a, 0x71b18589, 0x06b6b51f,
    0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e,
    0x9fbfe4a5, 0xe8b8d433, 0x7807c9a2, 0x0f00f934, 0x9609a88e,
    0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
    0xe10e9818, 0x7f6a0dbb, 0x086d3d2d, 0x91646c97, 0xe6635c01,
    0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed,
    0x6b6b51f4, 0x1c6c6162, 0x856530d8, 0xf262004e, 0x6c0695ed,
    0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
    0x1b01a57b, 0x8208f4c1, 0xf50fc457, 0x65b0d9c6, 0x12b7e950,
    0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3,
    0x8bbeb8ea, 0xfcb9887c, 0x62dd1ddf, 0x15da2d49, 0x8cd37cf3,
    0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
    0xfbd44c65, 0x4db26158, 0x3ab551ce, 0xa3bc0074, 0xd4bb30e2,
    0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a,
    0x4adfa541, 0x3dd895d7, 0xa4d1c46d, 0xd3d6f4fb, 0x4369e96a,
    0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5,
    0x346ed9fc, 0xad678846, 0xda60b8d0, 0x44042d73, 0x33031de5,
    0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010,
    0xaa0a4c5f, 0xdd0d7cc9, 0x5005713c, 0x270241aa, 0xbe0b1010,
    0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
    0xc90c2086, 0x5768b525, 0x206f85b3, 0xb966d409, 0xce61e49f,
    0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17,
    0x5edef90e, 0x29d9c998, 0xb0d09822, 0xc7d7a8b4, 0x59b33d17,
    0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6,
    0x2eb40d81, 0xb7bd5c3b, 0xc0ba6cad, 0xedb88320, 0x9abfb3b6,
    0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615,
    0x03b6e20c, 0x74b1d29a, 0xead54739, 0x9dd277af, 0x04db2615,
    0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
    0x73dc1683, 0xe3630b12, 0x94643b84, 0x0d6d6a3e, 0x7a6a5aa8,
    0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344,
    0xe40ecf0b, 0x9309ff9d, 0x0a00ae27, 0x7d079eb1, 0xf00f9344,
    0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
    0x8708a3d2, 0x1e01f268, 0x6906c2fe, 0xf762575d, 0x806567cb,
    0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a,
    0x196c3671, 0x6e6b06e7, 0xfed41b76, 0x89d32be0, 0x10da7a5a,
    0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
    0x67dd4acc, 0xf9b9df6f, 0x8ebeeff9, 0x17b7be43, 0x60b08ed5,
    0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1,
    0xd6d6a3e8, 0xa1d1937e, 0x38d8c2c4, 0x4fdff252, 0xd1bb67f1,
    0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c,
    0xa6bc5767, 0x3fb506dd, 0x48b2364b, 0xd80d2bda, 0xaf0a1b4c,
    0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef,
    0x36034af6, 0x41047a60, 0xdf60efc3, 0xa867df55, 0x316e8eef,
    0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
    0x4669be79, 0xcb61b38c, 0xbc66831a, 0x256fd2a0, 0x5268e236,
    0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe,
    0xcc0c7795, 0xbb0b4703, 0x220216b9, 0x5505262f, 0xc5ba3bbe,
    0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31,
    0xb2bd0b28, 0x2bb45a92, 0x5cb36a04, 0xc2d7ffa7, 0xb5d0cf31,
    0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c,
    0x2cd99e8b, 0x5bdeae1d, 0x9b64c2b0, 0xec63f226, 0x756aa39c,
    0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
    0x026d930a, 0x9c0906a9, 0xeb0e363f, 0x72076785, 0x05005713,
    0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b,
    0x95bf4a82, 0xe2b87a14, 0x7bb12bae, 0x0cb61b38, 0x92d28e9b,
    0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
    0xe5d5be0d, 0x7cdcefb7, 0x0bdbdf21, 0x86d3d2d4, 0xf1d4e242,
    0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1,
    0x68ddb3f8, 0x1fda836e, 0x81be16cd, 0xf6b9265b, 0x6fb077e1,
    0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
    0x18b74777, 0x88085ae6, 0xff0f6a70, 0x66063bca, 0x11010b5c,
    0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278,
    0x8f659eff, 0xf862ae69, 0x616bffd3, 0x166ccf45, 0xa00ae278,
    0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7,
    0xd70dd2ee, 0x4e048354, 0x3903b3c2, 0xa7672661, 0xd06016f7,
    0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66,
    0x4969474d, 0x3e6e77db, 0xaed16a4a, 0xd9d65adc, 0x40df0b66,
    0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
    0x37d83bf0, 0xa9bcae53, 0xdebb9ec5, 0x47b2cf7f, 0x30b5ffe9,
    0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605,
    0xbdbdf21c, 0xcabac28a, 0x53b39330, 0x24b4a3a6, 0xbad03605,
    0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8,
    0xcdd70693, 0x54de5729, 0x23d967bf, 0xb3667a2e, 0xc4614ab8,
    0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b,
    0x5d681b02, 0x2a6f2b94, 0xb40bbe37, 0xc30c8ea1, 0x5a05df1b,
    0x2d02ef8d
    0x2d02ef8d
  };
  };
  unsigned char *end;
  unsigned char *end;
 
 
  crc = ~crc & 0xffffffff;
  crc = ~crc & 0xffffffff;
  for (end = buf + len; buf < end; ++buf)
  for (end = buf + len; buf < end; ++buf)
    crc = crc32_table[(crc ^ *buf) & 0xff] ^ (crc >> 8);
    crc = crc32_table[(crc ^ *buf) & 0xff] ^ (crc >> 8);
  return ~crc & 0xffffffff;;
  return ~crc & 0xffffffff;;
}
}
 
 
ULONGEST
ULONGEST
align_up (ULONGEST v, int n)
align_up (ULONGEST v, int n)
{
{
  /* Check that N is really a power of two.  */
  /* Check that N is really a power of two.  */
  gdb_assert (n && (n & (n-1)) == 0);
  gdb_assert (n && (n & (n-1)) == 0);
  return (v + n - 1) & -n;
  return (v + n - 1) & -n;
}
}
 
 
ULONGEST
ULONGEST
align_down (ULONGEST v, int n)
align_down (ULONGEST v, int n)
{
{
  /* Check that N is really a power of two.  */
  /* Check that N is really a power of two.  */
  gdb_assert (n && (n & (n-1)) == 0);
  gdb_assert (n && (n & (n-1)) == 0);
  return (v & -n);
  return (v & -n);
}
}
 
 
/* Allocation function for the libiberty hash table which uses an
/* Allocation function for the libiberty hash table which uses an
   obstack.  The obstack is passed as DATA.  */
   obstack.  The obstack is passed as DATA.  */
 
 
void *
void *
hashtab_obstack_allocate (void *data, size_t size, size_t count)
hashtab_obstack_allocate (void *data, size_t size, size_t count)
{
{
  unsigned int total = size * count;
  unsigned int total = size * count;
  void *ptr = obstack_alloc ((struct obstack *) data, total);
  void *ptr = obstack_alloc ((struct obstack *) data, total);
  memset (ptr, 0, total);
  memset (ptr, 0, total);
  return ptr;
  return ptr;
}
}
 
 
/* Trivial deallocation function for the libiberty splay tree and hash
/* Trivial deallocation function for the libiberty splay tree and hash
   table - don't deallocate anything.  Rely on later deletion of the
   table - don't deallocate anything.  Rely on later deletion of the
   obstack.  DATA will be the obstack, although it is not needed
   obstack.  DATA will be the obstack, although it is not needed
   here.  */
   here.  */
 
 
void
void
dummy_obstack_deallocate (void *object, void *data)
dummy_obstack_deallocate (void *object, void *data)
{
{
  return;
  return;
}
}
 
 
/* The bit offset of the highest byte in a ULONGEST, for overflow
/* The bit offset of the highest byte in a ULONGEST, for overflow
   checking.  */
   checking.  */
 
 
#define HIGH_BYTE_POSN ((sizeof (ULONGEST) - 1) * HOST_CHAR_BIT)
#define HIGH_BYTE_POSN ((sizeof (ULONGEST) - 1) * HOST_CHAR_BIT)
 
 
/* True (non-zero) iff DIGIT is a valid digit in radix BASE,
/* True (non-zero) iff DIGIT is a valid digit in radix BASE,
   where 2 <= BASE <= 36.  */
   where 2 <= BASE <= 36.  */
 
 
static int
static int
is_digit_in_base (unsigned char digit, int base)
is_digit_in_base (unsigned char digit, int base)
{
{
  if (!isalnum (digit))
  if (!isalnum (digit))
    return 0;
    return 0;
  if (base <= 10)
  if (base <= 10)
    return (isdigit (digit) && digit < base + '0');
    return (isdigit (digit) && digit < base + '0');
  else
  else
    return (isdigit (digit) || tolower (digit) < base - 10 + 'a');
    return (isdigit (digit) || tolower (digit) < base - 10 + 'a');
}
}
 
 
static int
static int
digit_to_int (unsigned char c)
digit_to_int (unsigned char c)
{
{
  if (isdigit (c))
  if (isdigit (c))
    return c - '0';
    return c - '0';
  else
  else
    return tolower (c) - 'a' + 10;
    return tolower (c) - 'a' + 10;
}
}
 
 
/* As for strtoul, but for ULONGEST results.  */
/* As for strtoul, but for ULONGEST results.  */
 
 
ULONGEST
ULONGEST
strtoulst (const char *num, const char **trailer, int base)
strtoulst (const char *num, const char **trailer, int base)
{
{
  unsigned int high_part;
  unsigned int high_part;
  ULONGEST result;
  ULONGEST result;
  int minus = 0;
  int minus = 0;
  int i = 0;
  int i = 0;
 
 
  /* Skip leading whitespace.  */
  /* Skip leading whitespace.  */
  while (isspace (num[i]))
  while (isspace (num[i]))
    i++;
    i++;
 
 
  /* Handle prefixes.  */
  /* Handle prefixes.  */
  if (num[i] == '+')
  if (num[i] == '+')
    i++;
    i++;
  else if (num[i] == '-')
  else if (num[i] == '-')
    {
    {
      minus = 1;
      minus = 1;
      i++;
      i++;
    }
    }
 
 
  if (base == 0 || base == 16)
  if (base == 0 || base == 16)
    {
    {
      if (num[i] == '0' && (num[i + 1] == 'x' || num[i + 1] == 'X'))
      if (num[i] == '0' && (num[i + 1] == 'x' || num[i + 1] == 'X'))
        {
        {
          i += 2;
          i += 2;
          if (base == 0)
          if (base == 0)
            base = 16;
            base = 16;
        }
        }
    }
    }
 
 
  if (base == 0 && num[i] == '0')
  if (base == 0 && num[i] == '0')
    base = 8;
    base = 8;
 
 
  if (base == 0)
  if (base == 0)
    base = 10;
    base = 10;
 
 
  if (base < 2 || base > 36)
  if (base < 2 || base > 36)
    {
    {
      errno = EINVAL;
      errno = EINVAL;
      return 0;
      return 0;
    }
    }
 
 
  result = high_part = 0;
  result = high_part = 0;
  for (; is_digit_in_base (num[i], base); i += 1)
  for (; is_digit_in_base (num[i], base); i += 1)
    {
    {
      result = result * base + digit_to_int (num[i]);
      result = result * base + digit_to_int (num[i]);
      high_part = high_part * base + (unsigned int) (result >> HIGH_BYTE_POSN);
      high_part = high_part * base + (unsigned int) (result >> HIGH_BYTE_POSN);
      result &= ((ULONGEST) 1 << HIGH_BYTE_POSN) - 1;
      result &= ((ULONGEST) 1 << HIGH_BYTE_POSN) - 1;
      if (high_part > 0xff)
      if (high_part > 0xff)
        {
        {
          errno = ERANGE;
          errno = ERANGE;
          result = ~ (ULONGEST) 0;
          result = ~ (ULONGEST) 0;
          high_part = 0;
          high_part = 0;
          minus = 0;
          minus = 0;
          break;
          break;
        }
        }
    }
    }
 
 
  if (trailer != NULL)
  if (trailer != NULL)
    *trailer = &num[i];
    *trailer = &num[i];
 
 
  result = result + ((ULONGEST) high_part << HIGH_BYTE_POSN);
  result = result + ((ULONGEST) high_part << HIGH_BYTE_POSN);
  if (minus)
  if (minus)
    return -result;
    return -result;
  else
  else
    return result;
    return result;
}
}
 
 
/* Simple, portable version of dirname that does not modify its
/* Simple, portable version of dirname that does not modify its
   argument.  */
   argument.  */
 
 
char *
char *
ldirname (const char *filename)
ldirname (const char *filename)
{
{
  const char *base = lbasename (filename);
  const char *base = lbasename (filename);
  char *dirname;
  char *dirname;
 
 
  while (base > filename && IS_DIR_SEPARATOR (base[-1]))
  while (base > filename && IS_DIR_SEPARATOR (base[-1]))
    --base;
    --base;
 
 
  if (base == filename)
  if (base == filename)
    return NULL;
    return NULL;
 
 
  dirname = xmalloc (base - filename + 2);
  dirname = xmalloc (base - filename + 2);
  memcpy (dirname, filename, base - filename);
  memcpy (dirname, filename, base - filename);
 
 
  /* On DOS based file systems, convert "d:foo" to "d:.", so that we
  /* On DOS based file systems, convert "d:foo" to "d:.", so that we
     create "d:./bar" later instead of the (different) "d:/bar".  */
     create "d:./bar" later instead of the (different) "d:/bar".  */
  if (base - filename == 2 && IS_ABSOLUTE_PATH (base)
  if (base - filename == 2 && IS_ABSOLUTE_PATH (base)
      && !IS_DIR_SEPARATOR (filename[0]))
      && !IS_DIR_SEPARATOR (filename[0]))
    dirname[base++ - filename] = '.';
    dirname[base++ - filename] = '.';
 
 
  dirname[base - filename] = '\0';
  dirname[base - filename] = '\0';
  return dirname;
  return dirname;
}
}
 
 
/* Call libiberty's buildargv, and return the result.
/* Call libiberty's buildargv, and return the result.
   If buildargv fails due to out-of-memory, call nomem.
   If buildargv fails due to out-of-memory, call nomem.
   Therefore, the returned value is guaranteed to be non-NULL,
   Therefore, the returned value is guaranteed to be non-NULL,
   unless the parameter itself is NULL.  */
   unless the parameter itself is NULL.  */
 
 
char **
char **
gdb_buildargv (const char *s)
gdb_buildargv (const char *s)
{
{
  char **argv = buildargv (s);
  char **argv = buildargv (s);
  if (s != NULL && argv == NULL)
  if (s != NULL && argv == NULL)
    nomem (0);
    nomem (0);
  return argv;
  return argv;
}
}
 
 
int
int
compare_positive_ints (const void *ap, const void *bp)
compare_positive_ints (const void *ap, const void *bp)
{
{
  /* Because we know we're comparing two ints which are positive,
  /* Because we know we're comparing two ints which are positive,
     there's no danger of overflow here.  */
     there's no danger of overflow here.  */
  return * (int *) ap - * (int *) bp;
  return * (int *) ap - * (int *) bp;
}
}
 
 
#define AMBIGUOUS_MESS1 ".\nMatching formats:"
#define AMBIGUOUS_MESS1 ".\nMatching formats:"
#define AMBIGUOUS_MESS2 ".\nUse \"set gnutarget format-name\" to specify the format."
#define AMBIGUOUS_MESS2 ".\nUse \"set gnutarget format-name\" to specify the format."
 
 
const char *
const char *
gdb_bfd_errmsg (bfd_error_type error_tag, char **matching)
gdb_bfd_errmsg (bfd_error_type error_tag, char **matching)
{
{
  char *ret, *retp;
  char *ret, *retp;
  int ret_len;
  int ret_len;
  char **p;
  char **p;
 
 
  /* Check if errmsg just need simple return.  */
  /* Check if errmsg just need simple return.  */
  if (error_tag != bfd_error_file_ambiguously_recognized || matching == NULL)
  if (error_tag != bfd_error_file_ambiguously_recognized || matching == NULL)
    return bfd_errmsg (error_tag);
    return bfd_errmsg (error_tag);
 
 
  ret_len = strlen (bfd_errmsg (error_tag)) + strlen (AMBIGUOUS_MESS1)
  ret_len = strlen (bfd_errmsg (error_tag)) + strlen (AMBIGUOUS_MESS1)
            + strlen (AMBIGUOUS_MESS2);
            + strlen (AMBIGUOUS_MESS2);
  for (p = matching; *p; p++)
  for (p = matching; *p; p++)
    ret_len += strlen (*p) + 1;
    ret_len += strlen (*p) + 1;
  ret = xmalloc (ret_len + 1);
  ret = xmalloc (ret_len + 1);
  retp = ret;
  retp = ret;
  make_cleanup (xfree, ret);
  make_cleanup (xfree, ret);
 
 
  strcpy (retp, bfd_errmsg (error_tag));
  strcpy (retp, bfd_errmsg (error_tag));
  retp += strlen (retp);
  retp += strlen (retp);
 
 
  strcpy (retp, AMBIGUOUS_MESS1);
  strcpy (retp, AMBIGUOUS_MESS1);
  retp += strlen (retp);
  retp += strlen (retp);
 
 
  for (p = matching; *p; p++)
  for (p = matching; *p; p++)
    {
    {
      sprintf (retp, " %s", *p);
      sprintf (retp, " %s", *p);
      retp += strlen (retp);
      retp += strlen (retp);
    }
    }
  xfree (matching);
  xfree (matching);
 
 
  strcpy (retp, AMBIGUOUS_MESS2);
  strcpy (retp, AMBIGUOUS_MESS2);
 
 
  return ret;
  return ret;
}
}
 
 
/* Return ARGS parsed as a valid pid, or throw an error.  */
/* Return ARGS parsed as a valid pid, or throw an error.  */
 
 
int
int
parse_pid_to_attach (char *args)
parse_pid_to_attach (char *args)
{
{
  unsigned long pid;
  unsigned long pid;
  char *dummy;
  char *dummy;
 
 
  if (!args)
  if (!args)
    error_no_arg (_("process-id to attach"));
    error_no_arg (_("process-id to attach"));
 
 
  dummy = args;
  dummy = args;
  pid = strtoul (args, &dummy, 0);
  pid = strtoul (args, &dummy, 0);
  /* Some targets don't set errno on errors, grrr!  */
  /* Some targets don't set errno on errors, grrr!  */
  if ((pid == 0 && dummy == args) || dummy != &args[strlen (args)])
  if ((pid == 0 && dummy == args) || dummy != &args[strlen (args)])
    error (_("Illegal process-id: %s."), args);
    error (_("Illegal process-id: %s."), args);
 
 
  return pid;
  return pid;
}
}
 
 
/* Provide a prototype to silence -Wmissing-prototypes.  */
/* Provide a prototype to silence -Wmissing-prototypes.  */
extern initialize_file_ftype _initialize_utils;
extern initialize_file_ftype _initialize_utils;
 
 
void
void
_initialize_utils (void)
_initialize_utils (void)
{
{
  add_internal_problem_command (&internal_error_problem);
  add_internal_problem_command (&internal_error_problem);
  add_internal_problem_command (&internal_warning_problem);
  add_internal_problem_command (&internal_warning_problem);
}
}
 
 

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