OpenCores
URL https://opencores.org/ocsvn/openrisc/openrisc/trunk

Subversion Repositories openrisc

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

Go to most recent revision | Only display areas with differences | Details | Blame | View Log

Rev 834 Rev 842
/* Basic C++ demangling support for GDB.
/* Basic C++ demangling support for GDB.
 
 
   Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
   Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001,
   2003, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
   2003, 2007, 2008, 2009, 2010 Free Software Foundation, Inc.
 
 
   Written by Fred Fish at Cygnus Support.
   Written by Fred Fish at Cygnus Support.
 
 
   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/>.  */
 
 
 
 
/*  This file contains support code for C++ demangling that is common
/*  This file contains support code for C++ demangling that is common
   to a styles of demangling, and GDB specific. */
   to a styles of demangling, and GDB specific. */
 
 
#include "defs.h"
#include "defs.h"
#include "command.h"
#include "command.h"
#include "gdbcmd.h"
#include "gdbcmd.h"
#include "demangle.h"
#include "demangle.h"
#include "gdb_string.h"
#include "gdb_string.h"
 
 
/* Select the default C++ demangling style to use.  The default is "auto",
/* Select the default C++ demangling style to use.  The default is "auto",
   which allows gdb to attempt to pick an appropriate demangling style for
   which allows gdb to attempt to pick an appropriate demangling style for
   the executable it has loaded.  It can be set to a specific style ("gnu",
   the executable it has loaded.  It can be set to a specific style ("gnu",
   "lucid", "arm", "hp", etc.) in which case gdb will never attempt to do auto
   "lucid", "arm", "hp", etc.) in which case gdb will never attempt to do auto
   selection of the style unless you do an explicit "set demangle auto".
   selection of the style unless you do an explicit "set demangle auto".
   To select one of these as the default, set DEFAULT_DEMANGLING_STYLE in
   To select one of these as the default, set DEFAULT_DEMANGLING_STYLE in
   the appropriate target configuration file. */
   the appropriate target configuration file. */
 
 
#ifndef DEFAULT_DEMANGLING_STYLE
#ifndef DEFAULT_DEMANGLING_STYLE
#define DEFAULT_DEMANGLING_STYLE AUTO_DEMANGLING_STYLE_STRING
#define DEFAULT_DEMANGLING_STYLE AUTO_DEMANGLING_STYLE_STRING
#endif
#endif
 
 
extern void _initialize_demangler (void);
extern void _initialize_demangler (void);
 
 
/* String name for the current demangling style.  Set by the
/* String name for the current demangling style.  Set by the
   "set demangle-style" command, printed as part of the output by the
   "set demangle-style" command, printed as part of the output by the
   "show demangle-style" command. */
   "show demangle-style" command. */
 
 
static char *current_demangling_style_string;
static char *current_demangling_style_string;
 
 
/* The array of names of the known demanglyng styles.  Generated by
/* The array of names of the known demanglyng styles.  Generated by
   _initialize_demangler from libiberty_demanglers[] array.  */
   _initialize_demangler from libiberty_demanglers[] array.  */
 
 
static const char **demangling_style_names;
static const char **demangling_style_names;
static void
static void
show_demangling_style_names(struct ui_file *file, int from_tty,
show_demangling_style_names(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, _("The current C++ demangling style is \"%s\".\n"),
  fprintf_filtered (file, _("The current C++ demangling style is \"%s\".\n"),
                    value);
                    value);
}
}
 
 
 
 
static void set_demangling_command (char *, int, struct cmd_list_element *);
static void set_demangling_command (char *, int, struct cmd_list_element *);
 
 
/* Set current demangling style.  Called by the "set demangle-style"
/* Set current demangling style.  Called by the "set demangle-style"
   command after it has updated the current_demangling_style_string to
   command after it has updated the current_demangling_style_string to
   match what the user has entered.
   match what the user has entered.
 
 
   If the user has entered a string that matches a known demangling style
   If the user has entered a string that matches a known demangling style
   name in the demanglers[] array then just leave the string alone and update
   name in the demanglers[] array then just leave the string alone and update
   the current_demangling_style enum value to match.
   the current_demangling_style enum value to match.
 
 
   If the user has entered a string that doesn't match, including an empty
   If the user has entered a string that doesn't match, including an empty
   string, then print a list of the currently known styles and restore
   string, then print a list of the currently known styles and restore
   the current_demangling_style_string to match the current_demangling_style
   the current_demangling_style_string to match the current_demangling_style
   enum value.
   enum value.
 
 
   Note:  Assumes that current_demangling_style_string always points to
   Note:  Assumes that current_demangling_style_string always points to
   a malloc'd string, even if it is a null-string. */
   a malloc'd string, even if it is a null-string. */
 
 
static void
static void
set_demangling_command (char *ignore, int from_tty, struct cmd_list_element *c)
set_demangling_command (char *ignore, int from_tty, struct cmd_list_element *c)
{
{
  const struct demangler_engine *dem;
  const struct demangler_engine *dem;
 
 
  /*  First just try to match whatever style name the user supplied with
  /*  First just try to match whatever style name the user supplied with
     one of the known ones.  Don't bother special casing for an empty
     one of the known ones.  Don't bother special casing for an empty
     name, we just treat it as any other style name that doesn't match.
     name, we just treat it as any other style name that doesn't match.
     If we match, update the current demangling style enum. */
     If we match, update the current demangling style enum. */
 
 
  for (dem = libiberty_demanglers;
  for (dem = libiberty_demanglers;
       dem->demangling_style != unknown_demangling;
       dem->demangling_style != unknown_demangling;
       dem++)
       dem++)
    {
    {
      if (strcmp (current_demangling_style_string,
      if (strcmp (current_demangling_style_string,
                  dem->demangling_style_name) == 0)
                  dem->demangling_style_name) == 0)
        {
        {
          current_demangling_style = dem->demangling_style;
          current_demangling_style = dem->demangling_style;
          break;
          break;
        }
        }
    }
    }
 
 
  /* Check to see if we found a match.  If not, gripe about any non-empty
  /* Check to see if we found a match.  If not, gripe about any non-empty
     style name and supply a list of valid ones.  FIXME:  This should
     style name and supply a list of valid ones.  FIXME:  This should
     probably be done with some sort of completion and with help. */
     probably be done with some sort of completion and with help. */
 
 
  if (dem->demangling_style == unknown_demangling)
  if (dem->demangling_style == unknown_demangling)
    {
    {
      if (*current_demangling_style_string != '\0')
      if (*current_demangling_style_string != '\0')
        {
        {
          printf_unfiltered (_("Unknown demangling style `%s'.\n"),
          printf_unfiltered (_("Unknown demangling style `%s'.\n"),
                             current_demangling_style_string);
                             current_demangling_style_string);
        }
        }
      printf_unfiltered (_("The currently understood settings are:\n\n"));
      printf_unfiltered (_("The currently understood settings are:\n\n"));
      for (dem = libiberty_demanglers;
      for (dem = libiberty_demanglers;
           dem->demangling_style != unknown_demangling;
           dem->demangling_style != unknown_demangling;
           dem++)
           dem++)
        {
        {
          printf_unfiltered ("%-10s %s\n", dem->demangling_style_name,
          printf_unfiltered ("%-10s %s\n", dem->demangling_style_name,
                             dem->demangling_style_doc);
                             dem->demangling_style_doc);
          if (dem->demangling_style == current_demangling_style)
          if (dem->demangling_style == current_demangling_style)
            {
            {
              xfree (current_demangling_style_string);
              xfree (current_demangling_style_string);
              current_demangling_style_string =
              current_demangling_style_string =
                xstrdup (dem->demangling_style_name);
                xstrdup (dem->demangling_style_name);
            }
            }
        }
        }
      if (current_demangling_style == unknown_demangling)
      if (current_demangling_style == unknown_demangling)
        {
        {
          /* This can happen during initialization if gdb is compiled with
          /* This can happen during initialization if gdb is compiled with
             a DEMANGLING_STYLE value that is unknown, so pick the first
             a DEMANGLING_STYLE value that is unknown, so pick the first
             one as the default. */
             one as the default. */
          current_demangling_style = libiberty_demanglers[0].demangling_style;
          current_demangling_style = libiberty_demanglers[0].demangling_style;
          current_demangling_style_string =
          current_demangling_style_string =
            xstrdup (libiberty_demanglers[0].demangling_style_name);
            xstrdup (libiberty_demanglers[0].demangling_style_name);
          warning (_("`%s' style demangling chosen as the default."),
          warning (_("`%s' style demangling chosen as the default."),
                   current_demangling_style_string);
                   current_demangling_style_string);
        }
        }
    }
    }
}
}
 
 
/* Fake a "set demangle-style" command. */
/* Fake a "set demangle-style" command. */
 
 
void
void
set_demangling_style (char *style)
set_demangling_style (char *style)
{
{
  if (current_demangling_style_string != NULL)
  if (current_demangling_style_string != NULL)
    {
    {
      xfree (current_demangling_style_string);
      xfree (current_demangling_style_string);
    }
    }
  current_demangling_style_string = xstrdup (style);
  current_demangling_style_string = xstrdup (style);
  set_demangling_command ((char *) NULL, 0, (struct cmd_list_element *) NULL);
  set_demangling_command ((char *) NULL, 0, (struct cmd_list_element *) NULL);
}
}
 
 
/* G++ uses a special character to indicate certain internal names.  Which
/* G++ uses a special character to indicate certain internal names.  Which
   character it is depends on the platform:
   character it is depends on the platform:
   - Usually '$' on systems where the assembler will accept that
   - Usually '$' on systems where the assembler will accept that
   - Usually '.' otherwise (this includes most sysv4-like systems and most
   - Usually '.' otherwise (this includes most sysv4-like systems and most
     ELF targets)
     ELF targets)
   - Occasionally '_' if neither of the above is usable
   - Occasionally '_' if neither of the above is usable
 
 
   We check '$' first because it is the safest, and '.' often has another
   We check '$' first because it is the safest, and '.' often has another
   meaning.  We don't currently try to handle '_' because the precise forms
   meaning.  We don't currently try to handle '_' because the precise forms
   of the names are different on those targets.  */
   of the names are different on those targets.  */
 
 
static char cplus_markers[] = {'$', '.', '\0'};
static char cplus_markers[] = {'$', '.', '\0'};
 
 
int
int
is_cplus_marker (int c)
is_cplus_marker (int c)
{
{
  return c && strchr (cplus_markers, c) != NULL;
  return c && strchr (cplus_markers, c) != NULL;
}
}
 
 
void
void
_initialize_demangler (void)
_initialize_demangler (void)
{
{
  struct cmd_list_element *set, *show;
  struct cmd_list_element *set, *show;
  int i, ndems;
  int i, ndems;
 
 
  /* Fill the demangling_style_names[] array.  */
  /* Fill the demangling_style_names[] array.  */
  for (ndems = 0;
  for (ndems = 0;
       libiberty_demanglers[ndems].demangling_style != unknown_demangling;
       libiberty_demanglers[ndems].demangling_style != unknown_demangling;
       ndems++)
       ndems++)
    ;
    ;
  demangling_style_names = xcalloc (ndems + 1, sizeof (char *));
  demangling_style_names = xcalloc (ndems + 1, sizeof (char *));
  for (i = 0;
  for (i = 0;
       libiberty_demanglers[i].demangling_style != unknown_demangling;
       libiberty_demanglers[i].demangling_style != unknown_demangling;
       i++)
       i++)
    demangling_style_names[i] =
    demangling_style_names[i] =
      xstrdup (libiberty_demanglers[i].demangling_style_name);
      xstrdup (libiberty_demanglers[i].demangling_style_name);
 
 
  /* FIXME: cagney/2005-02-20: The code implementing this variable are
  /* FIXME: cagney/2005-02-20: The code implementing this variable are
     malloc-ing and free-ing current_demangling_style_string when it
     malloc-ing and free-ing current_demangling_style_string when it
     should instead just point to an element of
     should instead just point to an element of
     demangling_style_names.  */
     demangling_style_names.  */
  add_setshow_enum_cmd ("demangle-style", class_support,
  add_setshow_enum_cmd ("demangle-style", class_support,
                        demangling_style_names,
                        demangling_style_names,
                        (const char **) &current_demangling_style_string, _("\
                        (const char **) &current_demangling_style_string, _("\
Set the current C++ demangling style."), _("\
Set the current C++ demangling style."), _("\
Show the current C++ demangling style."), _("\
Show the current C++ demangling style."), _("\
Use `set demangle-style' without arguments for a list of demangling styles."),
Use `set demangle-style' without arguments for a list of demangling styles."),
                        set_demangling_command,
                        set_demangling_command,
                        show_demangling_style_names,
                        show_demangling_style_names,
                        &setlist, &showlist);
                        &setlist, &showlist);
 
 
  /* Set the default demangling style chosen at compilation time. */
  /* Set the default demangling style chosen at compilation time. */
  set_demangling_style (DEFAULT_DEMANGLING_STYLE);
  set_demangling_style (DEFAULT_DEMANGLING_STYLE);
}
}
 
 

powered by: WebSVN 2.1.0

© copyright 1999-2024 OpenCores.org, equivalent to Oliscience, all rights reserved. OpenCores®, registered trademark.