/* Support for printing C values for GDB, the GNU debugger.
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/* Support for printing C values for GDB, the GNU debugger.
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Copyright (C) 1986, 1988, 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
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Copyright (C) 1986, 1988, 1989, 1991, 1992, 1993, 1994, 1995, 1996, 1997,
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1998, 1999, 2000, 2001, 2003, 2005, 2006, 2007, 2008, 2009, 2010
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1998, 1999, 2000, 2001, 2003, 2005, 2006, 2007, 2008, 2009, 2010
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Free Software Foundation, Inc.
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Free Software Foundation, Inc.
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This file is part of GDB.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include "defs.h"
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#include "gdb_string.h"
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#include "gdb_string.h"
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#include "symtab.h"
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#include "symtab.h"
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#include "gdbtypes.h"
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#include "gdbtypes.h"
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#include "expression.h"
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#include "expression.h"
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#include "value.h"
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#include "value.h"
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#include "valprint.h"
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#include "valprint.h"
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#include "language.h"
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#include "language.h"
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#include "c-lang.h"
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#include "c-lang.h"
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#include "cp-abi.h"
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#include "cp-abi.h"
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#include "target.h"
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#include "target.h"
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/* Print function pointer with inferior address ADDRESS onto stdio
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/* Print function pointer with inferior address ADDRESS onto stdio
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stream STREAM. */
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stream STREAM. */
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|
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static void
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static void
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print_function_pointer_address (struct gdbarch *gdbarch, CORE_ADDR address,
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print_function_pointer_address (struct gdbarch *gdbarch, CORE_ADDR address,
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struct ui_file *stream, int addressprint)
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struct ui_file *stream, int addressprint)
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{
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{
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CORE_ADDR func_addr = gdbarch_convert_from_func_ptr_addr (gdbarch, address,
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CORE_ADDR func_addr = gdbarch_convert_from_func_ptr_addr (gdbarch, address,
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¤t_target);
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¤t_target);
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|
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/* If the function pointer is represented by a description, print the
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/* If the function pointer is represented by a description, print the
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address of the description. */
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address of the description. */
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if (addressprint && func_addr != address)
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if (addressprint && func_addr != address)
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{
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{
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fputs_filtered ("@", stream);
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fputs_filtered ("@", stream);
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fputs_filtered (paddress (gdbarch, address), stream);
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fputs_filtered (paddress (gdbarch, address), stream);
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fputs_filtered (": ", stream);
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fputs_filtered (": ", stream);
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}
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}
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print_address_demangle (gdbarch, func_addr, stream, demangle);
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print_address_demangle (gdbarch, func_addr, stream, demangle);
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}
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}
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/* A helper for c_textual_element_type. This checks the name of the
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/* A helper for c_textual_element_type. This checks the name of the
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typedef. This is bogus but it isn't apparent that the compiler
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typedef. This is bogus but it isn't apparent that the compiler
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provides us the help we may need. */
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provides us the help we may need. */
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|
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static int
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static int
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textual_name (const char *name)
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textual_name (const char *name)
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{
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{
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return (!strcmp (name, "wchar_t")
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return (!strcmp (name, "wchar_t")
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|| !strcmp (name, "char16_t")
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|| !strcmp (name, "char16_t")
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|| !strcmp (name, "char32_t"));
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|| !strcmp (name, "char32_t"));
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}
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}
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|
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/* Apply a heuristic to decide whether an array of TYPE or a pointer
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/* Apply a heuristic to decide whether an array of TYPE or a pointer
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to TYPE should be printed as a textual string. Return non-zero if
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to TYPE should be printed as a textual string. Return non-zero if
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it should, or zero if it should be treated as an array of integers
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it should, or zero if it should be treated as an array of integers
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or pointer to integers. FORMAT is the current format letter,
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or pointer to integers. FORMAT is the current format letter,
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or 0 if none.
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or 0 if none.
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|
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We guess that "char" is a character. Explicitly signed and
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We guess that "char" is a character. Explicitly signed and
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unsigned character types are also characters. Integer data from
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unsigned character types are also characters. Integer data from
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vector types is not. The user can override this by using the /s
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vector types is not. The user can override this by using the /s
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format letter. */
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format letter. */
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|
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int
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int
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c_textual_element_type (struct type *type, char format)
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c_textual_element_type (struct type *type, char format)
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{
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{
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struct type *true_type, *iter_type;
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struct type *true_type, *iter_type;
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|
|
if (format != 0 && format != 's')
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if (format != 0 && format != 's')
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return 0;
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return 0;
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|
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/* We also rely on this for its side effect of setting up all the
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/* We also rely on this for its side effect of setting up all the
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typedef pointers. */
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typedef pointers. */
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true_type = check_typedef (type);
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true_type = check_typedef (type);
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|
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/* TYPE_CODE_CHAR is always textual. */
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/* TYPE_CODE_CHAR is always textual. */
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if (TYPE_CODE (true_type) == TYPE_CODE_CHAR)
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if (TYPE_CODE (true_type) == TYPE_CODE_CHAR)
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return 1;
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return 1;
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|
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/* Any other character-like types must be integral. */
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/* Any other character-like types must be integral. */
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if (TYPE_CODE (true_type) != TYPE_CODE_INT)
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if (TYPE_CODE (true_type) != TYPE_CODE_INT)
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return 0;
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return 0;
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|
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/* We peel typedefs one by one, looking for a match. */
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/* We peel typedefs one by one, looking for a match. */
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iter_type = type;
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iter_type = type;
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while (iter_type)
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while (iter_type)
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{
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{
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/* Check the name of the type. */
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/* Check the name of the type. */
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if (TYPE_NAME (iter_type) && textual_name (TYPE_NAME (iter_type)))
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if (TYPE_NAME (iter_type) && textual_name (TYPE_NAME (iter_type)))
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return 1;
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return 1;
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|
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if (TYPE_CODE (iter_type) != TYPE_CODE_TYPEDEF)
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if (TYPE_CODE (iter_type) != TYPE_CODE_TYPEDEF)
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break;
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break;
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|
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/* Peel a single typedef. If the typedef doesn't have a target
|
/* Peel a single typedef. If the typedef doesn't have a target
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type, we use check_typedef and hope the result is ok -- it
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type, we use check_typedef and hope the result is ok -- it
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might be for C++, where wchar_t is a built-in type. */
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might be for C++, where wchar_t is a built-in type. */
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if (TYPE_TARGET_TYPE (iter_type))
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if (TYPE_TARGET_TYPE (iter_type))
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iter_type = TYPE_TARGET_TYPE (iter_type);
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iter_type = TYPE_TARGET_TYPE (iter_type);
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else
|
else
|
iter_type = check_typedef (iter_type);
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iter_type = check_typedef (iter_type);
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}
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}
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|
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if (format == 's')
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if (format == 's')
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{
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{
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/* Print this as a string if we can manage it. For now, no
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/* Print this as a string if we can manage it. For now, no
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wide character support. */
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wide character support. */
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if (TYPE_CODE (true_type) == TYPE_CODE_INT
|
if (TYPE_CODE (true_type) == TYPE_CODE_INT
|
&& TYPE_LENGTH (true_type) == 1)
|
&& TYPE_LENGTH (true_type) == 1)
|
return 1;
|
return 1;
|
}
|
}
|
else
|
else
|
{
|
{
|
/* If a one-byte TYPE_CODE_INT is missing the not-a-character
|
/* If a one-byte TYPE_CODE_INT is missing the not-a-character
|
flag, then we treat it as text; otherwise, we assume it's
|
flag, then we treat it as text; otherwise, we assume it's
|
being used as data. */
|
being used as data. */
|
if (TYPE_CODE (true_type) == TYPE_CODE_INT
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if (TYPE_CODE (true_type) == TYPE_CODE_INT
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&& TYPE_LENGTH (true_type) == 1
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&& TYPE_LENGTH (true_type) == 1
|
&& !TYPE_NOTTEXT (true_type))
|
&& !TYPE_NOTTEXT (true_type))
|
return 1;
|
return 1;
|
}
|
}
|
|
|
return 0;
|
return 0;
|
}
|
}
|
|
|
|
|
/* Print data of type TYPE located at VALADDR (within GDB), which came from
|
/* Print data of type TYPE located at VALADDR (within GDB), which came from
|
the inferior at address ADDRESS, onto stdio stream STREAM according to
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the inferior at address ADDRESS, onto stdio stream STREAM according to
|
OPTIONS. The data at VALADDR is in target byte order.
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OPTIONS. The data at VALADDR is in target byte order.
|
|
|
If the data are a string pointer, returns the number of string characters
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If the data are a string pointer, returns the number of string characters
|
printed. */
|
printed. */
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|
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int
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int
|
c_val_print (struct type *type, const gdb_byte *valaddr, int embedded_offset,
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c_val_print (struct type *type, const gdb_byte *valaddr, int embedded_offset,
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CORE_ADDR address, struct ui_file *stream, int recurse,
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CORE_ADDR address, struct ui_file *stream, int recurse,
|
const struct value_print_options *options)
|
const struct value_print_options *options)
|
{
|
{
|
struct gdbarch *gdbarch = get_type_arch (type);
|
struct gdbarch *gdbarch = get_type_arch (type);
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enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
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enum bfd_endian byte_order = gdbarch_byte_order (gdbarch);
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unsigned int i = 0; /* Number of characters printed */
|
unsigned int i = 0; /* Number of characters printed */
|
unsigned len;
|
unsigned len;
|
struct type *elttype, *unresolved_elttype;
|
struct type *elttype, *unresolved_elttype;
|
struct type *unresolved_type = type;
|
struct type *unresolved_type = type;
|
unsigned eltlen;
|
unsigned eltlen;
|
LONGEST val;
|
LONGEST val;
|
CORE_ADDR addr;
|
CORE_ADDR addr;
|
|
|
CHECK_TYPEDEF (type);
|
CHECK_TYPEDEF (type);
|
switch (TYPE_CODE (type))
|
switch (TYPE_CODE (type))
|
{
|
{
|
case TYPE_CODE_ARRAY:
|
case TYPE_CODE_ARRAY:
|
unresolved_elttype = TYPE_TARGET_TYPE (type);
|
unresolved_elttype = TYPE_TARGET_TYPE (type);
|
elttype = check_typedef (unresolved_elttype);
|
elttype = check_typedef (unresolved_elttype);
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if (TYPE_LENGTH (type) > 0 && TYPE_LENGTH (unresolved_elttype) > 0)
|
if (TYPE_LENGTH (type) > 0 && TYPE_LENGTH (unresolved_elttype) > 0)
|
{
|
{
|
eltlen = TYPE_LENGTH (elttype);
|
eltlen = TYPE_LENGTH (elttype);
|
len = TYPE_LENGTH (type) / eltlen;
|
len = TYPE_LENGTH (type) / eltlen;
|
if (options->prettyprint_arrays)
|
if (options->prettyprint_arrays)
|
{
|
{
|
print_spaces_filtered (2 + 2 * recurse, stream);
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print_spaces_filtered (2 + 2 * recurse, stream);
|
}
|
}
|
|
|
/* Print arrays of textual chars with a string syntax. */
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/* Print arrays of textual chars with a string syntax. */
|
if (c_textual_element_type (unresolved_elttype, options->format))
|
if (c_textual_element_type (unresolved_elttype, options->format))
|
{
|
{
|
/* If requested, look for the first null char and only print
|
/* If requested, look for the first null char and only print
|
elements up to it. */
|
elements up to it. */
|
if (options->stop_print_at_null)
|
if (options->stop_print_at_null)
|
{
|
{
|
unsigned int temp_len;
|
unsigned int temp_len;
|
|
|
for (temp_len = 0;
|
for (temp_len = 0;
|
(temp_len < len
|
(temp_len < len
|
&& temp_len < options->print_max
|
&& temp_len < options->print_max
|
&& extract_unsigned_integer (valaddr + embedded_offset
|
&& extract_unsigned_integer (valaddr + embedded_offset
|
+ temp_len * eltlen,
|
+ temp_len * eltlen,
|
eltlen, byte_order) != 0);
|
eltlen, byte_order) != 0);
|
++temp_len)
|
++temp_len)
|
;
|
;
|
len = temp_len;
|
len = temp_len;
|
}
|
}
|
|
|
LA_PRINT_STRING (stream, unresolved_elttype,
|
LA_PRINT_STRING (stream, unresolved_elttype,
|
valaddr + embedded_offset, len,
|
valaddr + embedded_offset, len,
|
NULL, 0, options);
|
NULL, 0, options);
|
i = len;
|
i = len;
|
}
|
}
|
else
|
else
|
{
|
{
|
fprintf_filtered (stream, "{");
|
fprintf_filtered (stream, "{");
|
/* If this is a virtual function table, print the 0th
|
/* If this is a virtual function table, print the 0th
|
entry specially, and the rest of the members normally. */
|
entry specially, and the rest of the members normally. */
|
if (cp_is_vtbl_ptr_type (elttype))
|
if (cp_is_vtbl_ptr_type (elttype))
|
{
|
{
|
i = 1;
|
i = 1;
|
fprintf_filtered (stream, _("%d vtable entries"), len - 1);
|
fprintf_filtered (stream, _("%d vtable entries"), len - 1);
|
}
|
}
|
else
|
else
|
{
|
{
|
i = 0;
|
i = 0;
|
}
|
}
|
val_print_array_elements (type, valaddr + embedded_offset, address, stream,
|
val_print_array_elements (type, valaddr + embedded_offset, address, stream,
|
recurse, options, i);
|
recurse, options, i);
|
fprintf_filtered (stream, "}");
|
fprintf_filtered (stream, "}");
|
}
|
}
|
break;
|
break;
|
}
|
}
|
/* Array of unspecified length: treat like pointer to first elt. */
|
/* Array of unspecified length: treat like pointer to first elt. */
|
addr = address;
|
addr = address;
|
goto print_unpacked_pointer;
|
goto print_unpacked_pointer;
|
|
|
case TYPE_CODE_MEMBERPTR:
|
case TYPE_CODE_MEMBERPTR:
|
if (options->format)
|
if (options->format)
|
{
|
{
|
print_scalar_formatted (valaddr + embedded_offset, type,
|
print_scalar_formatted (valaddr + embedded_offset, type,
|
options, 0, stream);
|
options, 0, stream);
|
break;
|
break;
|
}
|
}
|
cp_print_class_member (valaddr + embedded_offset, type, stream, "&");
|
cp_print_class_member (valaddr + embedded_offset, type, stream, "&");
|
break;
|
break;
|
|
|
case TYPE_CODE_METHODPTR:
|
case TYPE_CODE_METHODPTR:
|
cplus_print_method_ptr (valaddr + embedded_offset, type, stream);
|
cplus_print_method_ptr (valaddr + embedded_offset, type, stream);
|
break;
|
break;
|
|
|
case TYPE_CODE_PTR:
|
case TYPE_CODE_PTR:
|
if (options->format && options->format != 's')
|
if (options->format && options->format != 's')
|
{
|
{
|
print_scalar_formatted (valaddr + embedded_offset, type,
|
print_scalar_formatted (valaddr + embedded_offset, type,
|
options, 0, stream);
|
options, 0, stream);
|
break;
|
break;
|
}
|
}
|
if (options->vtblprint && cp_is_vtbl_ptr_type (type))
|
if (options->vtblprint && cp_is_vtbl_ptr_type (type))
|
{
|
{
|
/* Print the unmangled name if desired. */
|
/* Print the unmangled name if desired. */
|
/* Print vtable entry - we only get here if we ARE using
|
/* Print vtable entry - we only get here if we ARE using
|
-fvtable_thunks. (Otherwise, look under TYPE_CODE_STRUCT.) */
|
-fvtable_thunks. (Otherwise, look under TYPE_CODE_STRUCT.) */
|
CORE_ADDR addr
|
CORE_ADDR addr
|
= extract_typed_address (valaddr + embedded_offset, type);
|
= extract_typed_address (valaddr + embedded_offset, type);
|
print_function_pointer_address (gdbarch, addr, stream,
|
print_function_pointer_address (gdbarch, addr, stream,
|
options->addressprint);
|
options->addressprint);
|
break;
|
break;
|
}
|
}
|
unresolved_elttype = TYPE_TARGET_TYPE (type);
|
unresolved_elttype = TYPE_TARGET_TYPE (type);
|
elttype = check_typedef (unresolved_elttype);
|
elttype = check_typedef (unresolved_elttype);
|
{
|
{
|
addr = unpack_pointer (type, valaddr + embedded_offset);
|
addr = unpack_pointer (type, valaddr + embedded_offset);
|
print_unpacked_pointer:
|
print_unpacked_pointer:
|
|
|
if (TYPE_CODE (elttype) == TYPE_CODE_FUNC)
|
if (TYPE_CODE (elttype) == TYPE_CODE_FUNC)
|
{
|
{
|
/* Try to print what function it points to. */
|
/* Try to print what function it points to. */
|
print_function_pointer_address (gdbarch, addr, stream,
|
print_function_pointer_address (gdbarch, addr, stream,
|
options->addressprint);
|
options->addressprint);
|
/* Return value is irrelevant except for string pointers. */
|
/* Return value is irrelevant except for string pointers. */
|
return (0);
|
return (0);
|
}
|
}
|
|
|
if (options->addressprint)
|
if (options->addressprint)
|
fputs_filtered (paddress (gdbarch, addr), stream);
|
fputs_filtered (paddress (gdbarch, addr), stream);
|
|
|
/* For a pointer to a textual type, also print the string
|
/* For a pointer to a textual type, also print the string
|
pointed to, unless pointer is null. */
|
pointed to, unless pointer is null. */
|
|
|
if (c_textual_element_type (unresolved_elttype, options->format)
|
if (c_textual_element_type (unresolved_elttype, options->format)
|
&& addr != 0)
|
&& addr != 0)
|
{
|
{
|
i = val_print_string (unresolved_elttype, addr, -1, stream,
|
i = val_print_string (unresolved_elttype, addr, -1, stream,
|
options);
|
options);
|
}
|
}
|
else if (cp_is_vtbl_member (type))
|
else if (cp_is_vtbl_member (type))
|
{
|
{
|
/* print vtbl's nicely */
|
/* print vtbl's nicely */
|
CORE_ADDR vt_address = unpack_pointer (type, valaddr + embedded_offset);
|
CORE_ADDR vt_address = unpack_pointer (type, valaddr + embedded_offset);
|
|
|
struct minimal_symbol *msymbol =
|
struct minimal_symbol *msymbol =
|
lookup_minimal_symbol_by_pc (vt_address);
|
lookup_minimal_symbol_by_pc (vt_address);
|
if ((msymbol != NULL)
|
if ((msymbol != NULL)
|
&& (vt_address == SYMBOL_VALUE_ADDRESS (msymbol)))
|
&& (vt_address == SYMBOL_VALUE_ADDRESS (msymbol)))
|
{
|
{
|
fputs_filtered (" <", stream);
|
fputs_filtered (" <", stream);
|
fputs_filtered (SYMBOL_PRINT_NAME (msymbol), stream);
|
fputs_filtered (SYMBOL_PRINT_NAME (msymbol), stream);
|
fputs_filtered (">", stream);
|
fputs_filtered (">", stream);
|
}
|
}
|
if (vt_address && options->vtblprint)
|
if (vt_address && options->vtblprint)
|
{
|
{
|
struct value *vt_val;
|
struct value *vt_val;
|
struct symbol *wsym = (struct symbol *) NULL;
|
struct symbol *wsym = (struct symbol *) NULL;
|
struct type *wtype;
|
struct type *wtype;
|
struct block *block = (struct block *) NULL;
|
struct block *block = (struct block *) NULL;
|
int is_this_fld;
|
int is_this_fld;
|
|
|
if (msymbol != NULL)
|
if (msymbol != NULL)
|
wsym = lookup_symbol (SYMBOL_LINKAGE_NAME (msymbol), block,
|
wsym = lookup_symbol (SYMBOL_LINKAGE_NAME (msymbol), block,
|
VAR_DOMAIN, &is_this_fld);
|
VAR_DOMAIN, &is_this_fld);
|
|
|
if (wsym)
|
if (wsym)
|
{
|
{
|
wtype = SYMBOL_TYPE (wsym);
|
wtype = SYMBOL_TYPE (wsym);
|
}
|
}
|
else
|
else
|
{
|
{
|
wtype = unresolved_elttype;
|
wtype = unresolved_elttype;
|
}
|
}
|
vt_val = value_at (wtype, vt_address);
|
vt_val = value_at (wtype, vt_address);
|
common_val_print (vt_val, stream, recurse + 1, options,
|
common_val_print (vt_val, stream, recurse + 1, options,
|
current_language);
|
current_language);
|
if (options->pretty)
|
if (options->pretty)
|
{
|
{
|
fprintf_filtered (stream, "\n");
|
fprintf_filtered (stream, "\n");
|
print_spaces_filtered (2 + 2 * recurse, stream);
|
print_spaces_filtered (2 + 2 * recurse, stream);
|
}
|
}
|
}
|
}
|
}
|
}
|
|
|
/* Return number of characters printed, including the terminating
|
/* Return number of characters printed, including the terminating
|
'\0' if we reached the end. val_print_string takes care including
|
'\0' if we reached the end. val_print_string takes care including
|
the terminating '\0' if necessary. */
|
the terminating '\0' if necessary. */
|
return i;
|
return i;
|
}
|
}
|
break;
|
break;
|
|
|
case TYPE_CODE_REF:
|
case TYPE_CODE_REF:
|
elttype = check_typedef (TYPE_TARGET_TYPE (type));
|
elttype = check_typedef (TYPE_TARGET_TYPE (type));
|
if (options->addressprint)
|
if (options->addressprint)
|
{
|
{
|
CORE_ADDR addr
|
CORE_ADDR addr
|
= extract_typed_address (valaddr + embedded_offset, type);
|
= extract_typed_address (valaddr + embedded_offset, type);
|
fprintf_filtered (stream, "@");
|
fprintf_filtered (stream, "@");
|
fputs_filtered (paddress (gdbarch, addr), stream);
|
fputs_filtered (paddress (gdbarch, addr), stream);
|
if (options->deref_ref)
|
if (options->deref_ref)
|
fputs_filtered (": ", stream);
|
fputs_filtered (": ", stream);
|
}
|
}
|
/* De-reference the reference. */
|
/* De-reference the reference. */
|
if (options->deref_ref)
|
if (options->deref_ref)
|
{
|
{
|
if (TYPE_CODE (elttype) != TYPE_CODE_UNDEF)
|
if (TYPE_CODE (elttype) != TYPE_CODE_UNDEF)
|
{
|
{
|
struct value *deref_val =
|
struct value *deref_val =
|
value_at
|
value_at
|
(TYPE_TARGET_TYPE (type),
|
(TYPE_TARGET_TYPE (type),
|
unpack_pointer (type, valaddr + embedded_offset));
|
unpack_pointer (type, valaddr + embedded_offset));
|
common_val_print (deref_val, stream, recurse, options,
|
common_val_print (deref_val, stream, recurse, options,
|
current_language);
|
current_language);
|
}
|
}
|
else
|
else
|
fputs_filtered ("???", stream);
|
fputs_filtered ("???", stream);
|
}
|
}
|
break;
|
break;
|
|
|
case TYPE_CODE_UNION:
|
case TYPE_CODE_UNION:
|
if (recurse && !options->unionprint)
|
if (recurse && !options->unionprint)
|
{
|
{
|
fprintf_filtered (stream, "{...}");
|
fprintf_filtered (stream, "{...}");
|
break;
|
break;
|
}
|
}
|
/* Fall through. */
|
/* Fall through. */
|
case TYPE_CODE_STRUCT:
|
case TYPE_CODE_STRUCT:
|
/*FIXME: Abstract this away */
|
/*FIXME: Abstract this away */
|
if (options->vtblprint && cp_is_vtbl_ptr_type (type))
|
if (options->vtblprint && cp_is_vtbl_ptr_type (type))
|
{
|
{
|
/* Print the unmangled name if desired. */
|
/* Print the unmangled name if desired. */
|
/* Print vtable entry - we only get here if NOT using
|
/* Print vtable entry - we only get here if NOT using
|
-fvtable_thunks. (Otherwise, look under TYPE_CODE_PTR.) */
|
-fvtable_thunks. (Otherwise, look under TYPE_CODE_PTR.) */
|
int offset = (embedded_offset +
|
int offset = (embedded_offset +
|
TYPE_FIELD_BITPOS (type, VTBL_FNADDR_OFFSET) / 8);
|
TYPE_FIELD_BITPOS (type, VTBL_FNADDR_OFFSET) / 8);
|
struct type *field_type = TYPE_FIELD_TYPE (type, VTBL_FNADDR_OFFSET);
|
struct type *field_type = TYPE_FIELD_TYPE (type, VTBL_FNADDR_OFFSET);
|
CORE_ADDR addr
|
CORE_ADDR addr
|
= extract_typed_address (valaddr + offset, field_type);
|
= extract_typed_address (valaddr + offset, field_type);
|
|
|
print_function_pointer_address (gdbarch, addr, stream,
|
print_function_pointer_address (gdbarch, addr, stream,
|
options->addressprint);
|
options->addressprint);
|
}
|
}
|
else
|
else
|
cp_print_value_fields_rtti (type, valaddr,
|
cp_print_value_fields_rtti (type, valaddr,
|
embedded_offset, address, stream,
|
embedded_offset, address, stream,
|
recurse, options, NULL, 0);
|
recurse, options, NULL, 0);
|
break;
|
break;
|
|
|
case TYPE_CODE_ENUM:
|
case TYPE_CODE_ENUM:
|
if (options->format)
|
if (options->format)
|
{
|
{
|
print_scalar_formatted (valaddr + embedded_offset, type,
|
print_scalar_formatted (valaddr + embedded_offset, type,
|
options, 0, stream);
|
options, 0, stream);
|
break;
|
break;
|
}
|
}
|
len = TYPE_NFIELDS (type);
|
len = TYPE_NFIELDS (type);
|
val = unpack_long (type, valaddr + embedded_offset);
|
val = unpack_long (type, valaddr + embedded_offset);
|
for (i = 0; i < len; i++)
|
for (i = 0; i < len; i++)
|
{
|
{
|
QUIT;
|
QUIT;
|
if (val == TYPE_FIELD_BITPOS (type, i))
|
if (val == TYPE_FIELD_BITPOS (type, i))
|
{
|
{
|
break;
|
break;
|
}
|
}
|
}
|
}
|
if (i < len)
|
if (i < len)
|
{
|
{
|
fputs_filtered (TYPE_FIELD_NAME (type, i), stream);
|
fputs_filtered (TYPE_FIELD_NAME (type, i), stream);
|
}
|
}
|
else
|
else
|
{
|
{
|
print_longest (stream, 'd', 0, val);
|
print_longest (stream, 'd', 0, val);
|
}
|
}
|
break;
|
break;
|
|
|
case TYPE_CODE_FLAGS:
|
case TYPE_CODE_FLAGS:
|
if (options->format)
|
if (options->format)
|
print_scalar_formatted (valaddr + embedded_offset, type,
|
print_scalar_formatted (valaddr + embedded_offset, type,
|
options, 0, stream);
|
options, 0, stream);
|
else
|
else
|
val_print_type_code_flags (type, valaddr + embedded_offset, stream);
|
val_print_type_code_flags (type, valaddr + embedded_offset, stream);
|
break;
|
break;
|
|
|
case TYPE_CODE_FUNC:
|
case TYPE_CODE_FUNC:
|
case TYPE_CODE_METHOD:
|
case TYPE_CODE_METHOD:
|
if (options->format)
|
if (options->format)
|
{
|
{
|
print_scalar_formatted (valaddr + embedded_offset, type,
|
print_scalar_formatted (valaddr + embedded_offset, type,
|
options, 0, stream);
|
options, 0, stream);
|
break;
|
break;
|
}
|
}
|
/* FIXME, we should consider, at least for ANSI C language, eliminating
|
/* FIXME, we should consider, at least for ANSI C language, eliminating
|
the distinction made between FUNCs and POINTERs to FUNCs. */
|
the distinction made between FUNCs and POINTERs to FUNCs. */
|
fprintf_filtered (stream, "{");
|
fprintf_filtered (stream, "{");
|
type_print (type, "", stream, -1);
|
type_print (type, "", stream, -1);
|
fprintf_filtered (stream, "} ");
|
fprintf_filtered (stream, "} ");
|
/* Try to print what function it points to, and its address. */
|
/* Try to print what function it points to, and its address. */
|
print_address_demangle (gdbarch, address, stream, demangle);
|
print_address_demangle (gdbarch, address, stream, demangle);
|
break;
|
break;
|
|
|
case TYPE_CODE_BOOL:
|
case TYPE_CODE_BOOL:
|
if (options->format || options->output_format)
|
if (options->format || options->output_format)
|
{
|
{
|
struct value_print_options opts = *options;
|
struct value_print_options opts = *options;
|
opts.format = (options->format ? options->format
|
opts.format = (options->format ? options->format
|
: options->output_format);
|
: options->output_format);
|
print_scalar_formatted (valaddr + embedded_offset, type,
|
print_scalar_formatted (valaddr + embedded_offset, type,
|
&opts, 0, stream);
|
&opts, 0, stream);
|
}
|
}
|
else
|
else
|
{
|
{
|
val = unpack_long (type, valaddr + embedded_offset);
|
val = unpack_long (type, valaddr + embedded_offset);
|
if (val == 0)
|
if (val == 0)
|
fputs_filtered ("false", stream);
|
fputs_filtered ("false", stream);
|
else if (val == 1)
|
else if (val == 1)
|
fputs_filtered ("true", stream);
|
fputs_filtered ("true", stream);
|
else
|
else
|
print_longest (stream, 'd', 0, val);
|
print_longest (stream, 'd', 0, val);
|
}
|
}
|
break;
|
break;
|
|
|
case TYPE_CODE_RANGE:
|
case TYPE_CODE_RANGE:
|
/* FIXME: create_range_type does not set the unsigned bit in a
|
/* FIXME: create_range_type does not set the unsigned bit in a
|
range type (I think it probably should copy it from the target
|
range type (I think it probably should copy it from the target
|
type), so we won't print values which are too large to
|
type), so we won't print values which are too large to
|
fit in a signed integer correctly. */
|
fit in a signed integer correctly. */
|
/* FIXME: Doesn't handle ranges of enums correctly. (Can't just
|
/* FIXME: Doesn't handle ranges of enums correctly. (Can't just
|
print with the target type, though, because the size of our type
|
print with the target type, though, because the size of our type
|
and the target type might differ). */
|
and the target type might differ). */
|
/* FALLTHROUGH */
|
/* FALLTHROUGH */
|
|
|
case TYPE_CODE_INT:
|
case TYPE_CODE_INT:
|
if (options->format || options->output_format)
|
if (options->format || options->output_format)
|
{
|
{
|
struct value_print_options opts = *options;
|
struct value_print_options opts = *options;
|
opts.format = (options->format ? options->format
|
opts.format = (options->format ? options->format
|
: options->output_format);
|
: options->output_format);
|
print_scalar_formatted (valaddr + embedded_offset, type,
|
print_scalar_formatted (valaddr + embedded_offset, type,
|
&opts, 0, stream);
|
&opts, 0, stream);
|
}
|
}
|
else
|
else
|
{
|
{
|
val_print_type_code_int (type, valaddr + embedded_offset, stream);
|
val_print_type_code_int (type, valaddr + embedded_offset, stream);
|
/* C and C++ has no single byte int type, char is used instead.
|
/* C and C++ has no single byte int type, char is used instead.
|
Since we don't know whether the value is really intended to
|
Since we don't know whether the value is really intended to
|
be used as an integer or a character, print the character
|
be used as an integer or a character, print the character
|
equivalent as well. */
|
equivalent as well. */
|
if (c_textual_element_type (unresolved_type, options->format))
|
if (c_textual_element_type (unresolved_type, options->format))
|
{
|
{
|
fputs_filtered (" ", stream);
|
fputs_filtered (" ", stream);
|
LA_PRINT_CHAR ((unsigned char) unpack_long (type, valaddr + embedded_offset),
|
LA_PRINT_CHAR ((unsigned char) unpack_long (type, valaddr + embedded_offset),
|
unresolved_type, stream);
|
unresolved_type, stream);
|
}
|
}
|
}
|
}
|
break;
|
break;
|
|
|
case TYPE_CODE_CHAR:
|
case TYPE_CODE_CHAR:
|
if (options->format || options->output_format)
|
if (options->format || options->output_format)
|
{
|
{
|
struct value_print_options opts = *options;
|
struct value_print_options opts = *options;
|
opts.format = (options->format ? options->format
|
opts.format = (options->format ? options->format
|
: options->output_format);
|
: options->output_format);
|
print_scalar_formatted (valaddr + embedded_offset, type,
|
print_scalar_formatted (valaddr + embedded_offset, type,
|
&opts, 0, stream);
|
&opts, 0, stream);
|
}
|
}
|
else
|
else
|
{
|
{
|
val = unpack_long (type, valaddr + embedded_offset);
|
val = unpack_long (type, valaddr + embedded_offset);
|
if (TYPE_UNSIGNED (type))
|
if (TYPE_UNSIGNED (type))
|
fprintf_filtered (stream, "%u", (unsigned int) val);
|
fprintf_filtered (stream, "%u", (unsigned int) val);
|
else
|
else
|
fprintf_filtered (stream, "%d", (int) val);
|
fprintf_filtered (stream, "%d", (int) val);
|
fputs_filtered (" ", stream);
|
fputs_filtered (" ", stream);
|
LA_PRINT_CHAR ((unsigned char) val, unresolved_type, stream);
|
LA_PRINT_CHAR ((unsigned char) val, unresolved_type, stream);
|
}
|
}
|
break;
|
break;
|
|
|
case TYPE_CODE_FLT:
|
case TYPE_CODE_FLT:
|
if (options->format)
|
if (options->format)
|
{
|
{
|
print_scalar_formatted (valaddr + embedded_offset, type,
|
print_scalar_formatted (valaddr + embedded_offset, type,
|
options, 0, stream);
|
options, 0, stream);
|
}
|
}
|
else
|
else
|
{
|
{
|
print_floating (valaddr + embedded_offset, type, stream);
|
print_floating (valaddr + embedded_offset, type, stream);
|
}
|
}
|
break;
|
break;
|
|
|
case TYPE_CODE_DECFLOAT:
|
case TYPE_CODE_DECFLOAT:
|
if (options->format)
|
if (options->format)
|
print_scalar_formatted (valaddr + embedded_offset, type,
|
print_scalar_formatted (valaddr + embedded_offset, type,
|
options, 0, stream);
|
options, 0, stream);
|
else
|
else
|
print_decimal_floating (valaddr + embedded_offset, type, stream);
|
print_decimal_floating (valaddr + embedded_offset, type, stream);
|
break;
|
break;
|
|
|
case TYPE_CODE_VOID:
|
case TYPE_CODE_VOID:
|
fprintf_filtered (stream, "void");
|
fprintf_filtered (stream, "void");
|
break;
|
break;
|
|
|
case TYPE_CODE_ERROR:
|
case TYPE_CODE_ERROR:
|
fprintf_filtered (stream, _("<error type>"));
|
fprintf_filtered (stream, _("<error type>"));
|
break;
|
break;
|
|
|
case TYPE_CODE_UNDEF:
|
case TYPE_CODE_UNDEF:
|
/* This happens (without TYPE_FLAG_STUB set) on systems which don't use
|
/* This happens (without TYPE_FLAG_STUB set) on systems which don't use
|
dbx xrefs (NO_DBX_XREFS in gcc) if a file has a "struct foo *bar"
|
dbx xrefs (NO_DBX_XREFS in gcc) if a file has a "struct foo *bar"
|
and no complete type for struct foo in that file. */
|
and no complete type for struct foo in that file. */
|
fprintf_filtered (stream, _("<incomplete type>"));
|
fprintf_filtered (stream, _("<incomplete type>"));
|
break;
|
break;
|
|
|
case TYPE_CODE_COMPLEX:
|
case TYPE_CODE_COMPLEX:
|
if (options->format)
|
if (options->format)
|
print_scalar_formatted (valaddr + embedded_offset,
|
print_scalar_formatted (valaddr + embedded_offset,
|
TYPE_TARGET_TYPE (type),
|
TYPE_TARGET_TYPE (type),
|
options, 0, stream);
|
options, 0, stream);
|
else
|
else
|
print_floating (valaddr + embedded_offset, TYPE_TARGET_TYPE (type),
|
print_floating (valaddr + embedded_offset, TYPE_TARGET_TYPE (type),
|
stream);
|
stream);
|
fprintf_filtered (stream, " + ");
|
fprintf_filtered (stream, " + ");
|
if (options->format)
|
if (options->format)
|
print_scalar_formatted (valaddr + embedded_offset
|
print_scalar_formatted (valaddr + embedded_offset
|
+ TYPE_LENGTH (TYPE_TARGET_TYPE (type)),
|
+ TYPE_LENGTH (TYPE_TARGET_TYPE (type)),
|
TYPE_TARGET_TYPE (type),
|
TYPE_TARGET_TYPE (type),
|
options, 0, stream);
|
options, 0, stream);
|
else
|
else
|
print_floating (valaddr + embedded_offset
|
print_floating (valaddr + embedded_offset
|
+ TYPE_LENGTH (TYPE_TARGET_TYPE (type)),
|
+ TYPE_LENGTH (TYPE_TARGET_TYPE (type)),
|
TYPE_TARGET_TYPE (type),
|
TYPE_TARGET_TYPE (type),
|
stream);
|
stream);
|
fprintf_filtered (stream, " * I");
|
fprintf_filtered (stream, " * I");
|
break;
|
break;
|
|
|
default:
|
default:
|
error (_("Invalid C/C++ type code %d in symbol table."), TYPE_CODE (type));
|
error (_("Invalid C/C++ type code %d in symbol table."), TYPE_CODE (type));
|
}
|
}
|
gdb_flush (stream);
|
gdb_flush (stream);
|
return (0);
|
return (0);
|
}
|
}
|
|
|
int
|
int
|
c_value_print (struct value *val, struct ui_file *stream,
|
c_value_print (struct value *val, struct ui_file *stream,
|
const struct value_print_options *options)
|
const struct value_print_options *options)
|
{
|
{
|
struct type *type, *real_type, *val_type;
|
struct type *type, *real_type, *val_type;
|
int full, top, using_enc;
|
int full, top, using_enc;
|
struct value_print_options opts = *options;
|
struct value_print_options opts = *options;
|
|
|
opts.deref_ref = 1;
|
opts.deref_ref = 1;
|
|
|
/* If it is a pointer, indicate what it points to.
|
/* If it is a pointer, indicate what it points to.
|
|
|
Print type also if it is a reference.
|
Print type also if it is a reference.
|
|
|
C++: if it is a member pointer, we will take care
|
C++: if it is a member pointer, we will take care
|
of that when we print it. */
|
of that when we print it. */
|
|
|
/* Preserve the original type before stripping typedefs. We prefer
|
/* Preserve the original type before stripping typedefs. We prefer
|
to pass down the original type when possible, but for local
|
to pass down the original type when possible, but for local
|
checks it is better to look past the typedefs. */
|
checks it is better to look past the typedefs. */
|
val_type = value_type (val);
|
val_type = value_type (val);
|
type = check_typedef (val_type);
|
type = check_typedef (val_type);
|
|
|
if (TYPE_CODE (type) == TYPE_CODE_PTR
|
if (TYPE_CODE (type) == TYPE_CODE_PTR
|
|| TYPE_CODE (type) == TYPE_CODE_REF)
|
|| TYPE_CODE (type) == TYPE_CODE_REF)
|
{
|
{
|
/* Hack: remove (char *) for char strings. Their
|
/* Hack: remove (char *) for char strings. Their
|
type is indicated by the quoted string anyway.
|
type is indicated by the quoted string anyway.
|
(Don't use c_textual_element_type here; quoted strings
|
(Don't use c_textual_element_type here; quoted strings
|
are always exactly (char *), (wchar_t *), or the like. */
|
are always exactly (char *), (wchar_t *), or the like. */
|
if (TYPE_CODE (val_type) == TYPE_CODE_PTR
|
if (TYPE_CODE (val_type) == TYPE_CODE_PTR
|
&& TYPE_NAME (val_type) == NULL
|
&& TYPE_NAME (val_type) == NULL
|
&& TYPE_NAME (TYPE_TARGET_TYPE (val_type)) != NULL
|
&& TYPE_NAME (TYPE_TARGET_TYPE (val_type)) != NULL
|
&& (strcmp (TYPE_NAME (TYPE_TARGET_TYPE (val_type)), "char") == 0
|
&& (strcmp (TYPE_NAME (TYPE_TARGET_TYPE (val_type)), "char") == 0
|
|| textual_name (TYPE_NAME (TYPE_TARGET_TYPE (val_type)))))
|
|| textual_name (TYPE_NAME (TYPE_TARGET_TYPE (val_type)))))
|
{
|
{
|
/* Print nothing */
|
/* Print nothing */
|
}
|
}
|
else if (options->objectprint
|
else if (options->objectprint
|
&& (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_CLASS))
|
&& (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_CLASS))
|
{
|
{
|
|
|
if (TYPE_CODE(type) == TYPE_CODE_REF)
|
if (TYPE_CODE(type) == TYPE_CODE_REF)
|
{
|
{
|
/* Copy value, change to pointer, so we don't get an
|
/* Copy value, change to pointer, so we don't get an
|
* error about a non-pointer type in value_rtti_target_type
|
* error about a non-pointer type in value_rtti_target_type
|
*/
|
*/
|
struct value *temparg;
|
struct value *temparg;
|
temparg=value_copy(val);
|
temparg=value_copy(val);
|
deprecated_set_value_type (temparg, lookup_pointer_type (TYPE_TARGET_TYPE(type)));
|
deprecated_set_value_type (temparg, lookup_pointer_type (TYPE_TARGET_TYPE(type)));
|
val=temparg;
|
val=temparg;
|
}
|
}
|
/* Pointer to class, check real type of object */
|
/* Pointer to class, check real type of object */
|
fprintf_filtered (stream, "(");
|
fprintf_filtered (stream, "(");
|
real_type = value_rtti_target_type (val, &full, &top, &using_enc);
|
real_type = value_rtti_target_type (val, &full, &top, &using_enc);
|
if (real_type)
|
if (real_type)
|
{
|
{
|
/* RTTI entry found */
|
/* RTTI entry found */
|
if (TYPE_CODE (type) == TYPE_CODE_PTR)
|
if (TYPE_CODE (type) == TYPE_CODE_PTR)
|
{
|
{
|
/* create a pointer type pointing to the real type */
|
/* create a pointer type pointing to the real type */
|
type = lookup_pointer_type (real_type);
|
type = lookup_pointer_type (real_type);
|
}
|
}
|
else
|
else
|
{
|
{
|
/* create a reference type referencing the real type */
|
/* create a reference type referencing the real type */
|
type = lookup_reference_type (real_type);
|
type = lookup_reference_type (real_type);
|
}
|
}
|
/* JYG: Need to adjust pointer value. */
|
/* JYG: Need to adjust pointer value. */
|
/* NOTE: cagney/2005-01-02: THIS IS BOGUS. */
|
/* NOTE: cagney/2005-01-02: THIS IS BOGUS. */
|
value_contents_writeable (val)[0] -= top;
|
value_contents_writeable (val)[0] -= top;
|
|
|
/* Note: When we look up RTTI entries, we don't get any
|
/* Note: When we look up RTTI entries, we don't get any
|
information on const or volatile attributes */
|
information on const or volatile attributes */
|
}
|
}
|
type_print (type, "", stream, -1);
|
type_print (type, "", stream, -1);
|
fprintf_filtered (stream, ") ");
|
fprintf_filtered (stream, ") ");
|
val_type = type;
|
val_type = type;
|
}
|
}
|
else
|
else
|
{
|
{
|
/* normal case */
|
/* normal case */
|
fprintf_filtered (stream, "(");
|
fprintf_filtered (stream, "(");
|
type_print (value_type (val), "", stream, -1);
|
type_print (value_type (val), "", stream, -1);
|
fprintf_filtered (stream, ") ");
|
fprintf_filtered (stream, ") ");
|
}
|
}
|
}
|
}
|
|
|
if (!value_initialized (val))
|
if (!value_initialized (val))
|
fprintf_filtered (stream, " [uninitialized] ");
|
fprintf_filtered (stream, " [uninitialized] ");
|
|
|
if (options->objectprint && (TYPE_CODE (type) == TYPE_CODE_CLASS))
|
if (options->objectprint && (TYPE_CODE (type) == TYPE_CODE_CLASS))
|
{
|
{
|
/* Attempt to determine real type of object */
|
/* Attempt to determine real type of object */
|
real_type = value_rtti_type (val, &full, &top, &using_enc);
|
real_type = value_rtti_type (val, &full, &top, &using_enc);
|
if (real_type)
|
if (real_type)
|
{
|
{
|
/* We have RTTI information, so use it */
|
/* We have RTTI information, so use it */
|
val = value_full_object (val, real_type, full, top, using_enc);
|
val = value_full_object (val, real_type, full, top, using_enc);
|
fprintf_filtered (stream, "(%s%s) ",
|
fprintf_filtered (stream, "(%s%s) ",
|
TYPE_NAME (real_type),
|
TYPE_NAME (real_type),
|
full ? "" : _(" [incomplete object]"));
|
full ? "" : _(" [incomplete object]"));
|
/* Print out object: enclosing type is same as real_type if full */
|
/* Print out object: enclosing type is same as real_type if full */
|
return val_print (value_enclosing_type (val),
|
return val_print (value_enclosing_type (val),
|
value_contents_all (val), 0,
|
value_contents_all (val), 0,
|
value_address (val), stream, 0,
|
value_address (val), stream, 0,
|
&opts, current_language);
|
&opts, current_language);
|
/* Note: When we look up RTTI entries, we don't get any information on
|
/* Note: When we look up RTTI entries, we don't get any information on
|
const or volatile attributes */
|
const or volatile attributes */
|
}
|
}
|
else if (type != check_typedef (value_enclosing_type (val)))
|
else if (type != check_typedef (value_enclosing_type (val)))
|
{
|
{
|
/* No RTTI information, so let's do our best */
|
/* No RTTI information, so let's do our best */
|
fprintf_filtered (stream, "(%s ?) ",
|
fprintf_filtered (stream, "(%s ?) ",
|
TYPE_NAME (value_enclosing_type (val)));
|
TYPE_NAME (value_enclosing_type (val)));
|
return val_print (value_enclosing_type (val),
|
return val_print (value_enclosing_type (val),
|
value_contents_all (val), 0,
|
value_contents_all (val), 0,
|
value_address (val), stream, 0,
|
value_address (val), stream, 0,
|
&opts, current_language);
|
&opts, current_language);
|
}
|
}
|
/* Otherwise, we end up at the return outside this "if" */
|
/* Otherwise, we end up at the return outside this "if" */
|
}
|
}
|
|
|
return val_print (val_type, value_contents_all (val),
|
return val_print (val_type, value_contents_all (val),
|
value_embedded_offset (val),
|
value_embedded_offset (val),
|
value_address (val),
|
value_address (val),
|
stream, 0, &opts, current_language);
|
stream, 0, &opts, current_language);
|
}
|
}
|
|
|
