877 lines
23 KiB
C
877 lines
23 KiB
C
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/* Language independent support for printing types for GDB, the GNU debugger.
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Copyright (C) 1986-2020 Free Software Foundation, Inc.
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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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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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(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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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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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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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include "gdb_obstack.h"
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#include "bfd.h" /* Binary File Description */
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#include "symtab.h"
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#include "gdbtypes.h"
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#include "expression.h"
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#include "value.h"
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#include "gdbcore.h"
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#include "command.h"
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#include "gdbcmd.h"
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#include "target.h"
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#include "language.h"
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#include "cp-abi.h"
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#include "typeprint.h"
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#include "valprint.h"
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#include <ctype.h>
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#include "cli/cli-utils.h"
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#include "extension.h"
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#include "completer.h"
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#include "cli/cli-style.h"
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const struct type_print_options type_print_raw_options =
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{
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1, /* raw */
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1, /* print_methods */
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1, /* print_typedefs */
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0, /* print_offsets */
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0, /* print_nested_type_limit */
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NULL, /* local_typedefs */
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NULL, /* global_table */
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NULL /* global_printers */
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};
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/* The default flags for 'ptype' and 'whatis'. */
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static struct type_print_options default_ptype_flags =
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{
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0, /* raw */
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1, /* print_methods */
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1, /* print_typedefs */
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0, /* print_offsets */
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0, /* print_nested_type_limit */
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NULL, /* local_typedefs */
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NULL, /* global_table */
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NULL /* global_printers */
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};
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/* See typeprint.h. */
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const int print_offset_data::indentation = 23;
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/* See typeprint.h. */
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void
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print_offset_data::maybe_print_hole (struct ui_file *stream,
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unsigned int bitpos,
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const char *for_what)
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{
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/* We check for END_BITPOS > 0 because there is a specific
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scenario when END_BITPOS can be zero and BITPOS can be >
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0: when we are dealing with a struct/class with a virtual method.
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Because of the vtable, the first field of the struct/class will
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have an offset of sizeof (void *) (the size of the vtable). If
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we do not check for END_BITPOS > 0 here, GDB will report
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a hole before the first field, which is not accurate. */
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if (end_bitpos > 0 && end_bitpos < bitpos)
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{
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/* If END_BITPOS is smaller than the current type's
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bitpos, it means there's a hole in the struct, so we report
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it here. */
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unsigned int hole = bitpos - end_bitpos;
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unsigned int hole_byte = hole / TARGET_CHAR_BIT;
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unsigned int hole_bit = hole % TARGET_CHAR_BIT;
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if (hole_bit > 0)
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fprintf_filtered (stream, "/* XXX %2u-bit %s */\n", hole_bit,
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for_what);
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if (hole_byte > 0)
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fprintf_filtered (stream, "/* XXX %2u-byte %s */\n", hole_byte,
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for_what);
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}
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}
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/* See typeprint.h. */
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void
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print_offset_data::update (struct type *type, unsigned int field_idx,
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struct ui_file *stream)
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{
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if (field_is_static (&TYPE_FIELD (type, field_idx)))
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{
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print_spaces_filtered (indentation, stream);
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return;
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}
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struct type *ftype = check_typedef (TYPE_FIELD_TYPE (type, field_idx));
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if (TYPE_CODE (type) == TYPE_CODE_UNION)
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{
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/* Since union fields don't have the concept of offsets, we just
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print their sizes. */
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fprintf_filtered (stream, "/* %4s */",
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pulongest (TYPE_LENGTH (ftype)));
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return;
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}
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unsigned int bitpos = TYPE_FIELD_BITPOS (type, field_idx);
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unsigned int fieldsize_byte = TYPE_LENGTH (ftype);
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unsigned int fieldsize_bit = fieldsize_byte * TARGET_CHAR_BIT;
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maybe_print_hole (stream, bitpos, "hole");
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if (TYPE_FIELD_PACKED (type, field_idx)
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|| offset_bitpos % TARGET_CHAR_BIT != 0)
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{
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/* We're dealing with a bitfield. Print the bit offset. */
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fieldsize_bit = TYPE_FIELD_BITSIZE (type, field_idx);
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unsigned real_bitpos = bitpos + offset_bitpos;
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fprintf_filtered (stream, "/* %4u:%2u", real_bitpos / TARGET_CHAR_BIT,
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real_bitpos % TARGET_CHAR_BIT);
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}
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else
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{
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/* The position of the field, relative to the beginning of the
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struct. */
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fprintf_filtered (stream, "/* %4u",
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(bitpos + offset_bitpos) / TARGET_CHAR_BIT);
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fprintf_filtered (stream, " ");
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}
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fprintf_filtered (stream, " | %4u */", fieldsize_byte);
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end_bitpos = bitpos + fieldsize_bit;
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}
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/* See typeprint.h. */
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void
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print_offset_data::finish (struct type *type, int level,
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struct ui_file *stream)
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{
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unsigned int bitpos = TYPE_LENGTH (type) * TARGET_CHAR_BIT;
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maybe_print_hole (stream, bitpos, "padding");
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fputs_filtered ("\n", stream);
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print_spaces_filtered (level + 4 + print_offset_data::indentation, stream);
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fprintf_filtered (stream, "/* total size (bytes): %4s */\n",
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pulongest (TYPE_LENGTH (type)));
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}
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/* A hash function for a typedef_field. */
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static hashval_t
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hash_typedef_field (const void *p)
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{
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const struct decl_field *tf = (const struct decl_field *) p;
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struct type *t = check_typedef (tf->type);
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return htab_hash_string (TYPE_SAFE_NAME (t));
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}
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/* An equality function for a typedef field. */
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static int
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eq_typedef_field (const void *a, const void *b)
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{
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const struct decl_field *tfa = (const struct decl_field *) a;
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const struct decl_field *tfb = (const struct decl_field *) b;
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return types_equal (tfa->type, tfb->type);
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}
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/* See typeprint.h. */
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void
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typedef_hash_table::recursively_update (struct type *t)
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{
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int i;
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for (i = 0; i < TYPE_TYPEDEF_FIELD_COUNT (t); ++i)
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{
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struct decl_field *tdef = &TYPE_TYPEDEF_FIELD (t, i);
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void **slot;
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slot = htab_find_slot (m_table, tdef, INSERT);
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/* Only add a given typedef name once. Really this shouldn't
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happen; but it is safe enough to do the updates breadth-first
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and thus use the most specific typedef. */
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if (*slot == NULL)
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*slot = tdef;
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}
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/* Recurse into superclasses. */
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for (i = 0; i < TYPE_N_BASECLASSES (t); ++i)
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recursively_update (TYPE_BASECLASS (t, i));
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}
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/* See typeprint.h. */
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void
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typedef_hash_table::add_template_parameters (struct type *t)
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{
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int i;
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for (i = 0; i < TYPE_N_TEMPLATE_ARGUMENTS (t); ++i)
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{
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struct decl_field *tf;
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void **slot;
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/* We only want type-valued template parameters in the hash. */
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if (SYMBOL_CLASS (TYPE_TEMPLATE_ARGUMENT (t, i)) != LOC_TYPEDEF)
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continue;
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tf = XOBNEW (&m_storage, struct decl_field);
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tf->name = TYPE_TEMPLATE_ARGUMENT (t, i)->linkage_name ();
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tf->type = SYMBOL_TYPE (TYPE_TEMPLATE_ARGUMENT (t, i));
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slot = htab_find_slot (m_table, tf, INSERT);
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if (*slot == NULL)
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*slot = tf;
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}
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}
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/* See typeprint.h. */
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typedef_hash_table::typedef_hash_table ()
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{
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m_table = htab_create_alloc (10, hash_typedef_field, eq_typedef_field,
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NULL, xcalloc, xfree);
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}
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/* Free a typedef field table. */
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typedef_hash_table::~typedef_hash_table ()
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{
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htab_delete (m_table);
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}
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/* Helper function for typedef_hash_table::copy. */
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static int
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copy_typedef_hash_element (void **slot, void *nt)
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{
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htab_t new_table = (htab_t) nt;
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void **new_slot;
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new_slot = htab_find_slot (new_table, *slot, INSERT);
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if (*new_slot == NULL)
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*new_slot = *slot;
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return 1;
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}
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/* See typeprint.h. */
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typedef_hash_table::typedef_hash_table (const typedef_hash_table &table)
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{
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m_table = htab_create_alloc (10, hash_typedef_field, eq_typedef_field,
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NULL, xcalloc, xfree);
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htab_traverse_noresize (table.m_table, copy_typedef_hash_element,
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m_table);
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}
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/* Look up the type T in the global typedef hash. If it is found,
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return the typedef name. If it is not found, apply the
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type-printers, if any, given by start_script_type_printers and return the
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result. A NULL return means that the name was not found. */
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const char *
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typedef_hash_table::find_global_typedef (const struct type_print_options *flags,
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struct type *t)
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{
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char *applied;
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void **slot;
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struct decl_field tf, *new_tf;
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if (flags->global_typedefs == NULL)
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return NULL;
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tf.name = NULL;
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tf.type = t;
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slot = htab_find_slot (flags->global_typedefs->m_table, &tf, INSERT);
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if (*slot != NULL)
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{
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new_tf = (struct decl_field *) *slot;
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return new_tf->name;
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}
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/* Put an entry into the hash table now, in case
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apply_ext_lang_type_printers recurses. */
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new_tf = XOBNEW (&flags->global_typedefs->m_storage, struct decl_field);
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new_tf->name = NULL;
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new_tf->type = t;
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*slot = new_tf;
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applied = apply_ext_lang_type_printers (flags->global_printers, t);
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if (applied != NULL)
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{
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new_tf->name = obstack_strdup (&flags->global_typedefs->m_storage,
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applied);
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xfree (applied);
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}
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return new_tf->name;
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}
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/* See typeprint.h. */
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const char *
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typedef_hash_table::find_typedef (const struct type_print_options *flags,
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struct type *t)
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{
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if (flags->local_typedefs != NULL)
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{
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struct decl_field tf, *found;
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tf.name = NULL;
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tf.type = t;
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found = (struct decl_field *) htab_find (flags->local_typedefs->m_table,
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&tf);
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if (found != NULL)
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return found->name;
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}
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return find_global_typedef (flags, t);
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}
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/* Print a description of a type in the format of a
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typedef for the current language.
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NEW is the new name for a type TYPE. */
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void
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typedef_print (struct type *type, struct symbol *newobj, struct ui_file *stream)
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{
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LA_PRINT_TYPEDEF (type, newobj, stream);
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}
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/* The default way to print a typedef. */
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void
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default_print_typedef (struct type *type, struct symbol *new_symbol,
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struct ui_file *stream)
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{
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error (_("Language not supported."));
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}
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/* Print a description of a type TYPE in the form of a declaration of a
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variable named VARSTRING. (VARSTRING is demangled if necessary.)
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Output goes to STREAM (via stdio).
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If SHOW is positive, we show the contents of the outermost level
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of structure even if there is a type name that could be used instead.
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If SHOW is negative, we never show the details of elements' types. */
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void
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type_print (struct type *type, const char *varstring, struct ui_file *stream,
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int show)
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{
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LA_PRINT_TYPE (type, varstring, stream, show, 0, &default_ptype_flags);
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}
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/* Print TYPE to a string, returning it. The caller is responsible for
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freeing the string. */
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std::string
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type_to_string (struct type *type)
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{
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try
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{
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string_file stb;
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type_print (type, "", &stb, -1);
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return std::move (stb.string ());
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}
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catch (const gdb_exception &except)
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{
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}
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return {};
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}
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/* See typeprint.h. */
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void
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type_print_unknown_return_type (struct ui_file *stream)
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{
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fprintf_styled (stream, metadata_style.style (),
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_("<unknown return type>"));
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}
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/* See typeprint.h. */
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void
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error_unknown_type (const char *sym_print_name)
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{
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error (_("'%s' has unknown type; cast it to its declared type"),
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sym_print_name);
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}
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/* Print type of EXP, or last thing in value history if EXP == NULL.
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show is passed to type_print. */
|
|||
|
|
|||
|
static void
|
|||
|
whatis_exp (const char *exp, int show)
|
|||
|
{
|
|||
|
struct value *val;
|
|||
|
struct type *real_type = NULL;
|
|||
|
struct type *type;
|
|||
|
int full = 0;
|
|||
|
LONGEST top = -1;
|
|||
|
int using_enc = 0;
|
|||
|
struct value_print_options opts;
|
|||
|
struct type_print_options flags = default_ptype_flags;
|
|||
|
|
|||
|
if (exp)
|
|||
|
{
|
|||
|
if (*exp == '/')
|
|||
|
{
|
|||
|
int seen_one = 0;
|
|||
|
|
|||
|
for (++exp; *exp && !isspace (*exp); ++exp)
|
|||
|
{
|
|||
|
switch (*exp)
|
|||
|
{
|
|||
|
case 'r':
|
|||
|
flags.raw = 1;
|
|||
|
break;
|
|||
|
case 'm':
|
|||
|
flags.print_methods = 0;
|
|||
|
break;
|
|||
|
case 'M':
|
|||
|
flags.print_methods = 1;
|
|||
|
break;
|
|||
|
case 't':
|
|||
|
flags.print_typedefs = 0;
|
|||
|
break;
|
|||
|
case 'T':
|
|||
|
flags.print_typedefs = 1;
|
|||
|
break;
|
|||
|
case 'o':
|
|||
|
{
|
|||
|
/* Filter out languages which don't implement the
|
|||
|
feature. */
|
|||
|
if (show > 0
|
|||
|
&& (current_language->la_language == language_c
|
|||
|
|| current_language->la_language == language_cplus
|
|||
|
|| current_language->la_language == language_rust))
|
|||
|
{
|
|||
|
flags.print_offsets = 1;
|
|||
|
flags.print_typedefs = 0;
|
|||
|
flags.print_methods = 0;
|
|||
|
}
|
|||
|
break;
|
|||
|
}
|
|||
|
default:
|
|||
|
error (_("unrecognized flag '%c'"), *exp);
|
|||
|
}
|
|||
|
seen_one = 1;
|
|||
|
}
|
|||
|
|
|||
|
if (!*exp && !seen_one)
|
|||
|
error (_("flag expected"));
|
|||
|
if (!isspace (*exp))
|
|||
|
error (_("expected space after format"));
|
|||
|
exp = skip_spaces (exp);
|
|||
|
}
|
|||
|
|
|||
|
expression_up expr = parse_expression (exp);
|
|||
|
|
|||
|
/* The behavior of "whatis" depends on whether the user
|
|||
|
expression names a type directly, or a language expression
|
|||
|
(including variable names). If the former, then "whatis"
|
|||
|
strips one level of typedefs, only. If an expression,
|
|||
|
"whatis" prints the type of the expression without stripping
|
|||
|
any typedef level. "ptype" always strips all levels of
|
|||
|
typedefs. */
|
|||
|
if (show == -1 && expr->elts[0].opcode == OP_TYPE)
|
|||
|
{
|
|||
|
/* The user expression names a type directly. */
|
|||
|
type = expr->elts[1].type;
|
|||
|
|
|||
|
/* If this is a typedef, then find its immediate target.
|
|||
|
Use check_typedef to resolve stubs, but ignore its result
|
|||
|
because we do not want to dig past all typedefs. */
|
|||
|
check_typedef (type);
|
|||
|
if (TYPE_CODE (type) == TYPE_CODE_TYPEDEF)
|
|||
|
type = TYPE_TARGET_TYPE (type);
|
|||
|
|
|||
|
/* If the expression is actually a type, then there's no
|
|||
|
value to fetch the dynamic type from. */
|
|||
|
val = NULL;
|
|||
|
}
|
|||
|
else
|
|||
|
{
|
|||
|
/* The user expression names a type indirectly by naming an
|
|||
|
object or expression of that type. Find that
|
|||
|
indirectly-named type. */
|
|||
|
val = evaluate_type (expr.get ());
|
|||
|
type = value_type (val);
|
|||
|
}
|
|||
|
}
|
|||
|
else
|
|||
|
{
|
|||
|
val = access_value_history (0);
|
|||
|
type = value_type (val);
|
|||
|
}
|
|||
|
|
|||
|
get_user_print_options (&opts);
|
|||
|
if (val != NULL && opts.objectprint)
|
|||
|
{
|
|||
|
if (((TYPE_CODE (type) == TYPE_CODE_PTR) || TYPE_IS_REFERENCE (type))
|
|||
|
&& (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_STRUCT))
|
|||
|
real_type = value_rtti_indirect_type (val, &full, &top, &using_enc);
|
|||
|
else if (TYPE_CODE (type) == TYPE_CODE_STRUCT)
|
|||
|
real_type = value_rtti_type (val, &full, &top, &using_enc);
|
|||
|
}
|
|||
|
|
|||
|
if (flags.print_offsets
|
|||
|
&& (TYPE_CODE (type) == TYPE_CODE_STRUCT
|
|||
|
|| TYPE_CODE (type) == TYPE_CODE_UNION))
|
|||
|
fprintf_filtered (gdb_stdout, "/* offset | size */ ");
|
|||
|
|
|||
|
printf_filtered ("type = ");
|
|||
|
|
|||
|
std::unique_ptr<typedef_hash_table> table_holder;
|
|||
|
std::unique_ptr<ext_lang_type_printers> printer_holder;
|
|||
|
if (!flags.raw)
|
|||
|
{
|
|||
|
table_holder.reset (new typedef_hash_table);
|
|||
|
flags.global_typedefs = table_holder.get ();
|
|||
|
|
|||
|
printer_holder.reset (new ext_lang_type_printers);
|
|||
|
flags.global_printers = printer_holder.get ();
|
|||
|
}
|
|||
|
|
|||
|
if (real_type)
|
|||
|
{
|
|||
|
printf_filtered ("/* real type = ");
|
|||
|
type_print (real_type, "", gdb_stdout, -1);
|
|||
|
if (! full)
|
|||
|
printf_filtered (" (incomplete object)");
|
|||
|
printf_filtered (" */\n");
|
|||
|
}
|
|||
|
|
|||
|
LA_PRINT_TYPE (type, "", gdb_stdout, show, 0, &flags);
|
|||
|
printf_filtered ("\n");
|
|||
|
}
|
|||
|
|
|||
|
static void
|
|||
|
whatis_command (const char *exp, int from_tty)
|
|||
|
{
|
|||
|
/* Most of the time users do not want to see all the fields
|
|||
|
in a structure. If they do they can use the "ptype" command.
|
|||
|
Hence the "-1" below. */
|
|||
|
whatis_exp (exp, -1);
|
|||
|
}
|
|||
|
|
|||
|
/* TYPENAME is either the name of a type, or an expression. */
|
|||
|
|
|||
|
static void
|
|||
|
ptype_command (const char *type_name, int from_tty)
|
|||
|
{
|
|||
|
whatis_exp (type_name, 1);
|
|||
|
}
|
|||
|
|
|||
|
/* Print integral scalar data VAL, of type TYPE, onto stdio stream STREAM.
|
|||
|
Used to print data from type structures in a specified type. For example,
|
|||
|
array bounds may be characters or booleans in some languages, and this
|
|||
|
allows the ranges to be printed in their "natural" form rather than as
|
|||
|
decimal integer values.
|
|||
|
|
|||
|
FIXME: This is here simply because only the type printing routines
|
|||
|
currently use it, and it wasn't clear if it really belonged somewhere
|
|||
|
else (like printcmd.c). There are a lot of other gdb routines that do
|
|||
|
something similar, but they are generally concerned with printing values
|
|||
|
that come from the inferior in target byte order and target size. */
|
|||
|
|
|||
|
void
|
|||
|
print_type_scalar (struct type *type, LONGEST val, struct ui_file *stream)
|
|||
|
{
|
|||
|
unsigned int i;
|
|||
|
unsigned len;
|
|||
|
|
|||
|
type = check_typedef (type);
|
|||
|
|
|||
|
switch (TYPE_CODE (type))
|
|||
|
{
|
|||
|
|
|||
|
case TYPE_CODE_ENUM:
|
|||
|
len = TYPE_NFIELDS (type);
|
|||
|
for (i = 0; i < len; i++)
|
|||
|
{
|
|||
|
if (TYPE_FIELD_ENUMVAL (type, i) == val)
|
|||
|
{
|
|||
|
break;
|
|||
|
}
|
|||
|
}
|
|||
|
if (i < len)
|
|||
|
{
|
|||
|
fputs_filtered (TYPE_FIELD_NAME (type, i), stream);
|
|||
|
}
|
|||
|
else
|
|||
|
{
|
|||
|
print_longest (stream, 'd', 0, val);
|
|||
|
}
|
|||
|
break;
|
|||
|
|
|||
|
case TYPE_CODE_INT:
|
|||
|
print_longest (stream, TYPE_UNSIGNED (type) ? 'u' : 'd', 0, val);
|
|||
|
break;
|
|||
|
|
|||
|
case TYPE_CODE_CHAR:
|
|||
|
LA_PRINT_CHAR ((unsigned char) val, type, stream);
|
|||
|
break;
|
|||
|
|
|||
|
case TYPE_CODE_BOOL:
|
|||
|
fprintf_filtered (stream, val ? "TRUE" : "FALSE");
|
|||
|
break;
|
|||
|
|
|||
|
case TYPE_CODE_RANGE:
|
|||
|
print_type_scalar (TYPE_TARGET_TYPE (type), val, stream);
|
|||
|
return;
|
|||
|
|
|||
|
case TYPE_CODE_UNDEF:
|
|||
|
case TYPE_CODE_PTR:
|
|||
|
case TYPE_CODE_ARRAY:
|
|||
|
case TYPE_CODE_STRUCT:
|
|||
|
case TYPE_CODE_UNION:
|
|||
|
case TYPE_CODE_FUNC:
|
|||
|
case TYPE_CODE_FLT:
|
|||
|
case TYPE_CODE_VOID:
|
|||
|
case TYPE_CODE_SET:
|
|||
|
case TYPE_CODE_STRING:
|
|||
|
case TYPE_CODE_ERROR:
|
|||
|
case TYPE_CODE_MEMBERPTR:
|
|||
|
case TYPE_CODE_METHODPTR:
|
|||
|
case TYPE_CODE_METHOD:
|
|||
|
case TYPE_CODE_REF:
|
|||
|
case TYPE_CODE_RVALUE_REF:
|
|||
|
case TYPE_CODE_NAMESPACE:
|
|||
|
error (_("internal error: unhandled type in print_type_scalar"));
|
|||
|
break;
|
|||
|
|
|||
|
default:
|
|||
|
error (_("Invalid type code in symbol table."));
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
/* Dump details of a type specified either directly or indirectly.
|
|||
|
Uses the same sort of type lookup mechanism as ptype_command()
|
|||
|
and whatis_command(). */
|
|||
|
|
|||
|
void
|
|||
|
maintenance_print_type (const char *type_name, int from_tty)
|
|||
|
{
|
|||
|
struct value *val;
|
|||
|
struct type *type;
|
|||
|
|
|||
|
if (type_name != NULL)
|
|||
|
{
|
|||
|
expression_up expr = parse_expression (type_name);
|
|||
|
if (expr->elts[0].opcode == OP_TYPE)
|
|||
|
{
|
|||
|
/* The user expression names a type directly, just use that type. */
|
|||
|
type = expr->elts[1].type;
|
|||
|
}
|
|||
|
else
|
|||
|
{
|
|||
|
/* The user expression may name a type indirectly by naming an
|
|||
|
object of that type. Find that indirectly named type. */
|
|||
|
val = evaluate_type (expr.get ());
|
|||
|
type = value_type (val);
|
|||
|
}
|
|||
|
if (type != NULL)
|
|||
|
{
|
|||
|
recursive_dump_type (type, 0);
|
|||
|
}
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
|
|||
|
struct cmd_list_element *setprinttypelist;
|
|||
|
|
|||
|
struct cmd_list_element *showprinttypelist;
|
|||
|
|
|||
|
static void
|
|||
|
set_print_type (const char *arg, int from_tty)
|
|||
|
{
|
|||
|
printf_unfiltered (
|
|||
|
"\"set print type\" must be followed by the name of a subcommand.\n");
|
|||
|
help_list (setprintlist, "set print type ", all_commands, gdb_stdout);
|
|||
|
}
|
|||
|
|
|||
|
static void
|
|||
|
show_print_type (const char *args, int from_tty)
|
|||
|
{
|
|||
|
cmd_show_list (showprinttypelist, from_tty, "");
|
|||
|
}
|
|||
|
|
|||
|
static bool print_methods = true;
|
|||
|
|
|||
|
static void
|
|||
|
set_print_type_methods (const char *args,
|
|||
|
int from_tty, struct cmd_list_element *c)
|
|||
|
{
|
|||
|
default_ptype_flags.print_methods = print_methods;
|
|||
|
}
|
|||
|
|
|||
|
static void
|
|||
|
show_print_type_methods (struct ui_file *file, int from_tty,
|
|||
|
struct cmd_list_element *c, const char *value)
|
|||
|
{
|
|||
|
fprintf_filtered (file, _("Printing of methods defined in a class in %s\n"),
|
|||
|
value);
|
|||
|
}
|
|||
|
|
|||
|
static bool print_typedefs = true;
|
|||
|
|
|||
|
static void
|
|||
|
set_print_type_typedefs (const char *args,
|
|||
|
int from_tty, struct cmd_list_element *c)
|
|||
|
{
|
|||
|
default_ptype_flags.print_typedefs = print_typedefs;
|
|||
|
}
|
|||
|
|
|||
|
static void
|
|||
|
show_print_type_typedefs (struct ui_file *file, int from_tty,
|
|||
|
struct cmd_list_element *c, const char *value)
|
|||
|
{
|
|||
|
fprintf_filtered (file, _("Printing of typedefs defined in a class in %s\n"),
|
|||
|
value);
|
|||
|
}
|
|||
|
|
|||
|
/* Limit on the number of nested type definitions to print or -1 to print
|
|||
|
all nested type definitions in a class. By default, we do not print
|
|||
|
nested definitions. */
|
|||
|
|
|||
|
static int print_nested_type_limit = 0;
|
|||
|
|
|||
|
/* Set how many nested type definitions should be printed by the type
|
|||
|
printer. */
|
|||
|
|
|||
|
static void
|
|||
|
set_print_type_nested_types (const char *args, int from_tty,
|
|||
|
struct cmd_list_element *c)
|
|||
|
{
|
|||
|
default_ptype_flags.print_nested_type_limit = print_nested_type_limit;
|
|||
|
}
|
|||
|
|
|||
|
/* Show how many nested type definitions the type printer will print. */
|
|||
|
|
|||
|
static void
|
|||
|
show_print_type_nested_types (struct ui_file *file, int from_tty,
|
|||
|
struct cmd_list_element *c, const char *value)
|
|||
|
{
|
|||
|
if (*value == '0')
|
|||
|
{
|
|||
|
fprintf_filtered (file,
|
|||
|
_("Will not print nested types defined in a class\n"));
|
|||
|
}
|
|||
|
else
|
|||
|
{
|
|||
|
fprintf_filtered (file,
|
|||
|
_("Will print %s nested types defined in a class\n"),
|
|||
|
value);
|
|||
|
}
|
|||
|
}
|
|||
|
|
|||
|
void
|
|||
|
_initialize_typeprint (void)
|
|||
|
{
|
|||
|
struct cmd_list_element *c;
|
|||
|
|
|||
|
c = add_com ("ptype", class_vars, ptype_command, _("\
|
|||
|
Print definition of type TYPE.\n\
|
|||
|
Usage: ptype[/FLAGS] TYPE | EXPRESSION\n\
|
|||
|
Argument may be any type (for example a type name defined by typedef,\n\
|
|||
|
or \"struct STRUCT-TAG\" or \"class CLASS-NAME\" or \"union UNION-TAG\"\n\
|
|||
|
or \"enum ENUM-TAG\") or an expression.\n\
|
|||
|
The selected stack frame's lexical context is used to look up the name.\n\
|
|||
|
Contrary to \"whatis\", \"ptype\" always unrolls any typedefs.\n\
|
|||
|
\n\
|
|||
|
Available FLAGS are:\n\
|
|||
|
/r print in \"raw\" form; do not substitute typedefs\n\
|
|||
|
/m do not print methods defined in a class\n\
|
|||
|
/M print methods defined in a class\n\
|
|||
|
/t do not print typedefs defined in a class\n\
|
|||
|
/T print typedefs defined in a class\n\
|
|||
|
/o print offsets and sizes of fields in a struct (like pahole)"));
|
|||
|
set_cmd_completer (c, expression_completer);
|
|||
|
|
|||
|
c = add_com ("whatis", class_vars, whatis_command,
|
|||
|
_("Print data type of expression EXP.\n\
|
|||
|
Only one level of typedefs is unrolled. See also \"ptype\"."));
|
|||
|
set_cmd_completer (c, expression_completer);
|
|||
|
|
|||
|
add_prefix_cmd ("type", no_class, show_print_type,
|
|||
|
_("Generic command for showing type-printing settings."),
|
|||
|
&showprinttypelist, "show print type ", 0, &showprintlist);
|
|||
|
add_prefix_cmd ("type", no_class, set_print_type,
|
|||
|
_("Generic command for setting how types print."),
|
|||
|
&setprinttypelist, "set print type ", 0, &setprintlist);
|
|||
|
|
|||
|
add_setshow_boolean_cmd ("methods", no_class, &print_methods,
|
|||
|
_("\
|
|||
|
Set printing of methods defined in classes."), _("\
|
|||
|
Show printing of methods defined in classes."), NULL,
|
|||
|
set_print_type_methods,
|
|||
|
show_print_type_methods,
|
|||
|
&setprinttypelist, &showprinttypelist);
|
|||
|
add_setshow_boolean_cmd ("typedefs", no_class, &print_typedefs,
|
|||
|
_("\
|
|||
|
Set printing of typedefs defined in classes."), _("\
|
|||
|
Show printing of typedefs defined in classes."), NULL,
|
|||
|
set_print_type_typedefs,
|
|||
|
show_print_type_typedefs,
|
|||
|
&setprinttypelist, &showprinttypelist);
|
|||
|
|
|||
|
add_setshow_zuinteger_unlimited_cmd ("nested-type-limit", no_class,
|
|||
|
&print_nested_type_limit,
|
|||
|
_("\
|
|||
|
Set the number of recursive nested type definitions to print \
|
|||
|
(\"unlimited\" or -1 to show all)."), _("\
|
|||
|
Show the number of recursive nested type definitions to print."), NULL,
|
|||
|
set_print_type_nested_types,
|
|||
|
show_print_type_nested_types,
|
|||
|
&setprinttypelist, &showprinttypelist);
|
|||
|
}
|
|||
|
|
|||
|
/* Print <not allocated> status to stream STREAM. */
|
|||
|
|
|||
|
void
|
|||
|
val_print_not_allocated (struct ui_file *stream)
|
|||
|
{
|
|||
|
fprintf_styled (stream, metadata_style.style (), _("<not allocated>"));
|
|||
|
}
|
|||
|
|
|||
|
/* Print <not associated> status to stream STREAM. */
|
|||
|
|
|||
|
void
|
|||
|
val_print_not_associated (struct ui_file *stream)
|
|||
|
{
|
|||
|
fprintf_styled (stream, metadata_style.style (), _("<not associated>"));
|
|||
|
}
|