mirror of
https://sourceware.org/git/binutils-gdb.git
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ce1e8424c6
I was recently using ptype/o to look at the layout of some objects in gdb. I noticed that trailing padding was not shown -- but I wanted to be able to look at that, too. This patch changes ptype/o to also print trailing holes. Tested on x86-64 Fedora 26. gdb/ChangeLog 2018-05-18 Tom Tromey <tom@tromey.com> * c-typeprint.c (maybe_print_hole): New function. (c_print_type_struct_field_offset): Update. (c_type_print_base_struct_union): Call maybe_print_hole. gdb/testsuite/ChangeLog 2018-05-18 Tom Tromey <tom@tromey.com> * gdb.base/ptype-offsets.exp: Update.
1803 lines
53 KiB
C
1803 lines
53 KiB
C
/* Support for printing C and C++ types for GDB, the GNU debugger.
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Copyright (C) 1986-2018 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
|
||
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 "target.h"
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#include "language.h"
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#include "demangle.h"
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#include "c-lang.h"
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#include "typeprint.h"
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#include "cp-abi.h"
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#include "cp-support.h"
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/* When printing the offsets of a struct and its fields (i.e., 'ptype
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/o'; type_print_options::print_offsets), we use this many
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characters when printing the offset information at the beginning of
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the line. This is needed in order to generate the correct amount
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of whitespaces when no offset info should be printed for a certain
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field. */
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#define OFFSET_SPC_LEN 23
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/* A list of access specifiers used for printing. */
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enum access_specifier
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{
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s_none,
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s_public,
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s_private,
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s_protected
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};
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static void c_type_print_varspec_prefix (struct type *,
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struct ui_file *,
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int, int, int,
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const struct type_print_options *,
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struct print_offset_data *);
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/* Print "const", "volatile", or address space modifiers. */
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static void c_type_print_modifier (struct type *,
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struct ui_file *,
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int, int);
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static void c_type_print_base_1 (struct type *type, struct ui_file *stream,
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int show, int level,
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const struct type_print_options *flags,
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struct print_offset_data *podata);
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/* A callback function for cp_canonicalize_string_full that uses
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typedef_hash_table::find_typedef. */
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static const char *
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find_typedef_for_canonicalize (struct type *t, void *data)
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{
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return typedef_hash_table::find_typedef
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((const struct type_print_options *) data, t);
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}
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/* Print NAME on STREAM. If the 'raw' field of FLAGS is not set,
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canonicalize NAME using the local typedefs first. */
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static void
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print_name_maybe_canonical (const char *name,
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const struct type_print_options *flags,
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struct ui_file *stream)
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{
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std::string s;
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if (!flags->raw)
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s = cp_canonicalize_string_full (name,
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find_typedef_for_canonicalize,
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(void *) flags);
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fputs_filtered (!s.empty () ? s.c_str () : name, stream);
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}
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/* Helper function for c_print_type. */
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static void
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c_print_type_1 (struct type *type,
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const char *varstring,
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struct ui_file *stream,
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int show, int level,
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const struct type_print_options *flags,
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struct print_offset_data *podata)
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{
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enum type_code code;
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int demangled_args;
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int need_post_space;
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const char *local_name;
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if (show > 0)
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type = check_typedef (type);
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local_name = typedef_hash_table::find_typedef (flags, type);
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if (local_name != NULL)
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{
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fputs_filtered (local_name, stream);
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if (varstring != NULL && *varstring != '\0')
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fputs_filtered (" ", stream);
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}
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else
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{
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c_type_print_base_1 (type, stream, show, level, flags, podata);
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code = TYPE_CODE (type);
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if ((varstring != NULL && *varstring != '\0')
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/* Need a space if going to print stars or brackets;
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but not if we will print just a type name. */
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|| ((show > 0 || TYPE_NAME (type) == 0)
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&& (code == TYPE_CODE_PTR || code == TYPE_CODE_FUNC
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|| code == TYPE_CODE_METHOD
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|| (code == TYPE_CODE_ARRAY
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&& !TYPE_VECTOR (type))
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|| code == TYPE_CODE_MEMBERPTR
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|| code == TYPE_CODE_METHODPTR
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|| TYPE_IS_REFERENCE (type))))
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fputs_filtered (" ", stream);
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need_post_space = (varstring != NULL && strcmp (varstring, "") != 0);
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c_type_print_varspec_prefix (type, stream, show, 0, need_post_space,
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flags, podata);
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}
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if (varstring != NULL)
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{
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fputs_filtered (varstring, stream);
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/* For demangled function names, we have the arglist as part of
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the name, so don't print an additional pair of ()'s. */
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if (local_name == NULL)
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{
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demangled_args = strchr (varstring, '(') != NULL;
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c_type_print_varspec_suffix (type, stream, show,
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0, demangled_args,
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flags);
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}
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}
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}
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/* LEVEL is the depth to indent lines by. */
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void
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c_print_type (struct type *type,
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const char *varstring,
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struct ui_file *stream,
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int show, int level,
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const struct type_print_options *flags)
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{
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struct print_offset_data podata;
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c_print_type_1 (type, varstring, stream, show, level, flags, &podata);
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}
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/* Print a typedef using C syntax. TYPE is the underlying type.
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NEW_SYMBOL is the symbol naming the type. STREAM is the stream on
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which to print. */
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void
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c_print_typedef (struct type *type,
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struct symbol *new_symbol,
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struct ui_file *stream)
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{
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type = check_typedef (type);
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fprintf_filtered (stream, "typedef ");
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type_print (type, "", stream, 0);
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if (TYPE_NAME ((SYMBOL_TYPE (new_symbol))) == 0
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|| strcmp (TYPE_NAME ((SYMBOL_TYPE (new_symbol))),
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SYMBOL_LINKAGE_NAME (new_symbol)) != 0
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|| TYPE_CODE (SYMBOL_TYPE (new_symbol)) == TYPE_CODE_TYPEDEF)
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fprintf_filtered (stream, " %s", SYMBOL_PRINT_NAME (new_symbol));
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fprintf_filtered (stream, ";\n");
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}
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/* If TYPE is a derived type, then print out derivation information.
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Print only the actual base classes of this type, not the base
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classes of the base classes. I.e. for the derivation hierarchy:
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class A { int a; };
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class B : public A {int b; };
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class C : public B {int c; };
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Print the type of class C as:
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class C : public B {
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int c;
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}
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Not as the following (like gdb used to), which is not legal C++
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syntax for derived types and may be confused with the multiple
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inheritance form:
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class C : public B : public A {
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int c;
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}
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In general, gdb should try to print the types as closely as
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possible to the form that they appear in the source code. */
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static void
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cp_type_print_derivation_info (struct ui_file *stream,
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struct type *type,
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const struct type_print_options *flags)
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{
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const char *name;
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int i;
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for (i = 0; i < TYPE_N_BASECLASSES (type); i++)
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{
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wrap_here (" ");
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fputs_filtered (i == 0 ? ": " : ", ", stream);
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fprintf_filtered (stream, "%s%s ",
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BASETYPE_VIA_PUBLIC (type, i)
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? "public" : (TYPE_FIELD_PROTECTED (type, i)
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? "protected" : "private"),
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BASETYPE_VIA_VIRTUAL (type, i) ? " virtual" : "");
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name = type_name_no_tag (TYPE_BASECLASS (type, i));
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if (name)
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print_name_maybe_canonical (name, flags, stream);
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else
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fprintf_filtered (stream, "(null)");
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}
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if (i > 0)
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{
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fputs_filtered (" ", stream);
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}
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}
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/* Print the C++ method arguments ARGS to the file STREAM. */
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static void
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cp_type_print_method_args (struct type *mtype, const char *prefix,
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const char *varstring, int staticp,
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struct ui_file *stream,
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const struct type_print_options *flags)
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{
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struct field *args = TYPE_FIELDS (mtype);
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int nargs = TYPE_NFIELDS (mtype);
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int varargs = TYPE_VARARGS (mtype);
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int i;
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fprintf_symbol_filtered (stream, prefix,
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language_cplus, DMGL_ANSI);
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fprintf_symbol_filtered (stream, varstring,
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language_cplus, DMGL_ANSI);
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fputs_filtered ("(", stream);
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/* Skip the class variable. We keep this here to accommodate older
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compilers and debug formats which may not support artificial
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parameters. */
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i = staticp ? 0 : 1;
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if (nargs > i)
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{
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while (i < nargs)
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{
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struct field arg = args[i++];
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/* Skip any artificial arguments. */
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if (FIELD_ARTIFICIAL (arg))
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continue;
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c_print_type (arg.type, "", stream, 0, 0, flags);
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if (i == nargs && varargs)
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fprintf_filtered (stream, ", ...");
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else if (i < nargs)
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{
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fprintf_filtered (stream, ", ");
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wrap_here (" ");
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}
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}
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}
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else if (varargs)
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fprintf_filtered (stream, "...");
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else if (current_language->la_language == language_cplus)
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fprintf_filtered (stream, "void");
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fprintf_filtered (stream, ")");
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/* For non-static methods, read qualifiers from the type of
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THIS. */
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if (!staticp)
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{
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struct type *domain;
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gdb_assert (nargs > 0);
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gdb_assert (TYPE_CODE (args[0].type) == TYPE_CODE_PTR);
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domain = TYPE_TARGET_TYPE (args[0].type);
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if (TYPE_CONST (domain))
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fprintf_filtered (stream, " const");
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if (TYPE_VOLATILE (domain))
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fprintf_filtered (stream, " volatile");
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if (TYPE_RESTRICT (domain))
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fprintf_filtered (stream, " restrict");
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if (TYPE_ATOMIC (domain))
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fprintf_filtered (stream, " _Atomic");
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}
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}
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/* Print any asterisks or open-parentheses needed before the
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variable name (to describe its type).
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On outermost call, pass 0 for PASSED_A_PTR.
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On outermost call, SHOW > 0 means should ignore
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any typename for TYPE and show its details.
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SHOW is always zero on recursive calls.
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NEED_POST_SPACE is non-zero when a space will be be needed
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between a trailing qualifier and a field, variable, or function
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name. */
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static void
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c_type_print_varspec_prefix (struct type *type,
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struct ui_file *stream,
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int show, int passed_a_ptr,
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int need_post_space,
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const struct type_print_options *flags,
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struct print_offset_data *podata)
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{
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const char *name;
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if (type == 0)
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return;
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if (TYPE_NAME (type) && show <= 0)
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return;
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QUIT;
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switch (TYPE_CODE (type))
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{
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case TYPE_CODE_PTR:
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c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type),
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stream, show, 1, 1, flags, podata);
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fprintf_filtered (stream, "*");
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c_type_print_modifier (type, stream, 1, need_post_space);
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break;
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case TYPE_CODE_MEMBERPTR:
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c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type),
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stream, show, 0, 0, flags, podata);
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name = type_name_no_tag (TYPE_SELF_TYPE (type));
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if (name)
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print_name_maybe_canonical (name, flags, stream);
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else
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c_type_print_base_1 (TYPE_SELF_TYPE (type),
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stream, -1, passed_a_ptr, flags, podata);
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fprintf_filtered (stream, "::*");
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break;
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case TYPE_CODE_METHODPTR:
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c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type),
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stream, show, 0, 0, flags, podata);
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fprintf_filtered (stream, "(");
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name = type_name_no_tag (TYPE_SELF_TYPE (type));
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if (name)
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print_name_maybe_canonical (name, flags, stream);
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else
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c_type_print_base_1 (TYPE_SELF_TYPE (type),
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stream, -1, passed_a_ptr, flags, podata);
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fprintf_filtered (stream, "::*");
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break;
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case TYPE_CODE_REF:
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case TYPE_CODE_RVALUE_REF:
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c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type),
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stream, show, 1, 0, flags, podata);
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fprintf_filtered (stream, TYPE_CODE(type) == TYPE_CODE_REF ? "&" : "&&");
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c_type_print_modifier (type, stream, 1, need_post_space);
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break;
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case TYPE_CODE_METHOD:
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case TYPE_CODE_FUNC:
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c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type),
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stream, show, 0, 0, flags, podata);
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if (passed_a_ptr)
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fprintf_filtered (stream, "(");
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break;
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case TYPE_CODE_ARRAY:
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c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type),
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stream, show, 0, 0, flags, podata);
|
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if (passed_a_ptr)
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fprintf_filtered (stream, "(");
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break;
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|
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case TYPE_CODE_TYPEDEF:
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c_type_print_varspec_prefix (TYPE_TARGET_TYPE (type),
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stream, show, passed_a_ptr, 0, flags,
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podata);
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break;
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||
|
||
case TYPE_CODE_UNDEF:
|
||
case TYPE_CODE_STRUCT:
|
||
case TYPE_CODE_UNION:
|
||
case TYPE_CODE_ENUM:
|
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case TYPE_CODE_FLAGS:
|
||
case TYPE_CODE_INT:
|
||
case TYPE_CODE_FLT:
|
||
case TYPE_CODE_VOID:
|
||
case TYPE_CODE_ERROR:
|
||
case TYPE_CODE_CHAR:
|
||
case TYPE_CODE_BOOL:
|
||
case TYPE_CODE_SET:
|
||
case TYPE_CODE_RANGE:
|
||
case TYPE_CODE_STRING:
|
||
case TYPE_CODE_COMPLEX:
|
||
case TYPE_CODE_NAMESPACE:
|
||
case TYPE_CODE_DECFLOAT:
|
||
/* These types need no prefix. They are listed here so that
|
||
gcc -Wall will reveal any types that haven't been handled. */
|
||
break;
|
||
default:
|
||
error (_("type not handled in c_type_print_varspec_prefix()"));
|
||
break;
|
||
}
|
||
}
|
||
|
||
/* Print out "const" and "volatile" attributes,
|
||
and address space id if present.
|
||
TYPE is a pointer to the type being printed out.
|
||
STREAM is the output destination.
|
||
NEED_PRE_SPACE = 1 indicates an initial white space is needed.
|
||
NEED_POST_SPACE = 1 indicates a final white space is needed. */
|
||
|
||
static void
|
||
c_type_print_modifier (struct type *type, struct ui_file *stream,
|
||
int need_pre_space, int need_post_space)
|
||
{
|
||
int did_print_modifier = 0;
|
||
const char *address_space_id;
|
||
|
||
/* We don't print `const' qualifiers for references --- since all
|
||
operators affect the thing referenced, not the reference itself,
|
||
every reference is `const'. */
|
||
if (TYPE_CONST (type) && !TYPE_IS_REFERENCE (type))
|
||
{
|
||
if (need_pre_space)
|
||
fprintf_filtered (stream, " ");
|
||
fprintf_filtered (stream, "const");
|
||
did_print_modifier = 1;
|
||
}
|
||
|
||
if (TYPE_VOLATILE (type))
|
||
{
|
||
if (did_print_modifier || need_pre_space)
|
||
fprintf_filtered (stream, " ");
|
||
fprintf_filtered (stream, "volatile");
|
||
did_print_modifier = 1;
|
||
}
|
||
|
||
if (TYPE_RESTRICT (type))
|
||
{
|
||
if (did_print_modifier || need_pre_space)
|
||
fprintf_filtered (stream, " ");
|
||
fprintf_filtered (stream, "restrict");
|
||
did_print_modifier = 1;
|
||
}
|
||
|
||
if (TYPE_ATOMIC (type))
|
||
{
|
||
if (did_print_modifier || need_pre_space)
|
||
fprintf_filtered (stream, " ");
|
||
fprintf_filtered (stream, "_Atomic");
|
||
did_print_modifier = 1;
|
||
}
|
||
|
||
address_space_id = address_space_int_to_name (get_type_arch (type),
|
||
TYPE_INSTANCE_FLAGS (type));
|
||
if (address_space_id)
|
||
{
|
||
if (did_print_modifier || need_pre_space)
|
||
fprintf_filtered (stream, " ");
|
||
fprintf_filtered (stream, "@%s", address_space_id);
|
||
did_print_modifier = 1;
|
||
}
|
||
|
||
if (did_print_modifier && need_post_space)
|
||
fprintf_filtered (stream, " ");
|
||
}
|
||
|
||
|
||
/* Print out the arguments of TYPE, which should have TYPE_CODE_METHOD
|
||
or TYPE_CODE_FUNC, to STREAM. Artificial arguments, such as "this"
|
||
in non-static methods, are displayed if LINKAGE_NAME is zero. If
|
||
LINKAGE_NAME is non-zero and LANGUAGE is language_cplus the topmost
|
||
parameter types get removed their possible const and volatile qualifiers to
|
||
match demangled linkage name parameters part of such function type.
|
||
LANGUAGE is the language in which TYPE was defined. This is a necessary
|
||
evil since this code is used by the C and C++. */
|
||
|
||
void
|
||
c_type_print_args (struct type *type, struct ui_file *stream,
|
||
int linkage_name, enum language language,
|
||
const struct type_print_options *flags)
|
||
{
|
||
int i;
|
||
int printed_any = 0;
|
||
|
||
fprintf_filtered (stream, "(");
|
||
|
||
for (i = 0; i < TYPE_NFIELDS (type); i++)
|
||
{
|
||
struct type *param_type;
|
||
|
||
if (TYPE_FIELD_ARTIFICIAL (type, i) && linkage_name)
|
||
continue;
|
||
|
||
if (printed_any)
|
||
{
|
||
fprintf_filtered (stream, ", ");
|
||
wrap_here (" ");
|
||
}
|
||
|
||
param_type = TYPE_FIELD_TYPE (type, i);
|
||
|
||
if (language == language_cplus && linkage_name)
|
||
{
|
||
/* C++ standard, 13.1 Overloadable declarations, point 3, item:
|
||
- Parameter declarations that differ only in the presence or
|
||
absence of const and/or volatile are equivalent.
|
||
|
||
And the const/volatile qualifiers are not present in the mangled
|
||
names as produced by GCC. */
|
||
|
||
param_type = make_cv_type (0, 0, param_type, NULL);
|
||
}
|
||
|
||
c_print_type (param_type, "", stream, -1, 0, flags);
|
||
printed_any = 1;
|
||
}
|
||
|
||
if (printed_any && TYPE_VARARGS (type))
|
||
{
|
||
/* Print out a trailing ellipsis for varargs functions. Ignore
|
||
TYPE_VARARGS if the function has no named arguments; that
|
||
represents unprototyped (K&R style) C functions. */
|
||
if (printed_any && TYPE_VARARGS (type))
|
||
{
|
||
fprintf_filtered (stream, ", ");
|
||
wrap_here (" ");
|
||
fprintf_filtered (stream, "...");
|
||
}
|
||
}
|
||
else if (!printed_any
|
||
&& (TYPE_PROTOTYPED (type) || language == language_cplus))
|
||
fprintf_filtered (stream, "void");
|
||
|
||
fprintf_filtered (stream, ")");
|
||
}
|
||
|
||
/* Return true iff the j'th overloading of the i'th method of TYPE
|
||
is a type conversion operator, like `operator int () { ... }'.
|
||
When listing a class's methods, we don't print the return type of
|
||
such operators. */
|
||
|
||
static int
|
||
is_type_conversion_operator (struct type *type, int i, int j)
|
||
{
|
||
/* I think the whole idea of recognizing type conversion operators
|
||
by their name is pretty terrible. But I don't think our present
|
||
data structure gives us any other way to tell. If you know of
|
||
some other way, feel free to rewrite this function. */
|
||
const char *name = TYPE_FN_FIELDLIST_NAME (type, i);
|
||
|
||
if (!startswith (name, CP_OPERATOR_STR))
|
||
return 0;
|
||
|
||
name += 8;
|
||
if (! strchr (" \t\f\n\r", *name))
|
||
return 0;
|
||
|
||
while (strchr (" \t\f\n\r", *name))
|
||
name++;
|
||
|
||
if (!('a' <= *name && *name <= 'z')
|
||
&& !('A' <= *name && *name <= 'Z')
|
||
&& *name != '_')
|
||
/* If this doesn't look like the start of an identifier, then it
|
||
isn't a type conversion operator. */
|
||
return 0;
|
||
else if (startswith (name, "new"))
|
||
name += 3;
|
||
else if (startswith (name, "delete"))
|
||
name += 6;
|
||
else
|
||
/* If it doesn't look like new or delete, it's a type conversion
|
||
operator. */
|
||
return 1;
|
||
|
||
/* Is that really the end of the name? */
|
||
if (('a' <= *name && *name <= 'z')
|
||
|| ('A' <= *name && *name <= 'Z')
|
||
|| ('0' <= *name && *name <= '9')
|
||
|| *name == '_')
|
||
/* No, so the identifier following "operator" must be a type name,
|
||
and this is a type conversion operator. */
|
||
return 1;
|
||
|
||
/* That was indeed the end of the name, so it was `operator new' or
|
||
`operator delete', neither of which are type conversion
|
||
operators. */
|
||
return 0;
|
||
}
|
||
|
||
/* Given a C++ qualified identifier QID, strip off the qualifiers,
|
||
yielding the unqualified name. The return value is a pointer into
|
||
the original string.
|
||
|
||
It's a pity we don't have this information in some more structured
|
||
form. Even the author of this function feels that writing little
|
||
parsers like this everywhere is stupid. */
|
||
|
||
static char *
|
||
remove_qualifiers (char *qid)
|
||
{
|
||
int quoted = 0; /* Zero if we're not in quotes;
|
||
'"' if we're in a double-quoted string;
|
||
'\'' if we're in a single-quoted string. */
|
||
int depth = 0; /* Number of unclosed parens we've seen. */
|
||
char *parenstack = (char *) alloca (strlen (qid));
|
||
char *scan;
|
||
char *last = 0; /* The character after the rightmost
|
||
`::' token we've seen so far. */
|
||
|
||
for (scan = qid; *scan; scan++)
|
||
{
|
||
if (quoted)
|
||
{
|
||
if (*scan == quoted)
|
||
quoted = 0;
|
||
else if (*scan == '\\' && *(scan + 1))
|
||
scan++;
|
||
}
|
||
else if (scan[0] == ':' && scan[1] == ':')
|
||
{
|
||
/* If we're inside parenthesis (i.e., an argument list) or
|
||
angle brackets (i.e., a list of template arguments), then
|
||
we don't record the position of this :: token, since it's
|
||
not relevant to the top-level structure we're trying to
|
||
operate on. */
|
||
if (depth == 0)
|
||
{
|
||
last = scan + 2;
|
||
scan++;
|
||
}
|
||
}
|
||
else if (*scan == '"' || *scan == '\'')
|
||
quoted = *scan;
|
||
else if (*scan == '(')
|
||
parenstack[depth++] = ')';
|
||
else if (*scan == '[')
|
||
parenstack[depth++] = ']';
|
||
/* We're going to treat <> as a pair of matching characters,
|
||
since we're more likely to see those in template id's than
|
||
real less-than characters. What a crock. */
|
||
else if (*scan == '<')
|
||
parenstack[depth++] = '>';
|
||
else if (*scan == ')' || *scan == ']' || *scan == '>')
|
||
{
|
||
if (depth > 0 && parenstack[depth - 1] == *scan)
|
||
depth--;
|
||
else
|
||
{
|
||
/* We're going to do a little error recovery here. If
|
||
we don't find a match for *scan on the paren stack,
|
||
but there is something lower on the stack that does
|
||
match, we pop the stack to that point. */
|
||
int i;
|
||
|
||
for (i = depth - 1; i >= 0; i--)
|
||
if (parenstack[i] == *scan)
|
||
{
|
||
depth = i;
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
}
|
||
|
||
if (last)
|
||
return last;
|
||
else
|
||
/* We didn't find any :: tokens at the top level, so declare the
|
||
whole thing an unqualified identifier. */
|
||
return qid;
|
||
}
|
||
|
||
/* Print any array sizes, function arguments or close parentheses
|
||
needed after the variable name (to describe its type).
|
||
Args work like c_type_print_varspec_prefix. */
|
||
|
||
void
|
||
c_type_print_varspec_suffix (struct type *type,
|
||
struct ui_file *stream,
|
||
int show, int passed_a_ptr,
|
||
int demangled_args,
|
||
const struct type_print_options *flags)
|
||
{
|
||
if (type == 0)
|
||
return;
|
||
|
||
if (TYPE_NAME (type) && show <= 0)
|
||
return;
|
||
|
||
QUIT;
|
||
|
||
switch (TYPE_CODE (type))
|
||
{
|
||
case TYPE_CODE_ARRAY:
|
||
{
|
||
LONGEST low_bound, high_bound;
|
||
int is_vector = TYPE_VECTOR (type);
|
||
|
||
if (passed_a_ptr)
|
||
fprintf_filtered (stream, ")");
|
||
|
||
fprintf_filtered (stream, (is_vector ?
|
||
" __attribute__ ((vector_size(" : "["));
|
||
/* Bounds are not yet resolved, print a bounds placeholder instead. */
|
||
if (TYPE_HIGH_BOUND_KIND (TYPE_INDEX_TYPE (type)) == PROP_LOCEXPR
|
||
|| TYPE_HIGH_BOUND_KIND (TYPE_INDEX_TYPE (type)) == PROP_LOCLIST)
|
||
fprintf_filtered (stream, "variable length");
|
||
else if (get_array_bounds (type, &low_bound, &high_bound))
|
||
fprintf_filtered (stream, "%s",
|
||
plongest (high_bound - low_bound + 1));
|
||
fprintf_filtered (stream, (is_vector ? ")))" : "]"));
|
||
|
||
c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream,
|
||
show, 0, 0, flags);
|
||
}
|
||
break;
|
||
|
||
case TYPE_CODE_MEMBERPTR:
|
||
c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream,
|
||
show, 0, 0, flags);
|
||
break;
|
||
|
||
case TYPE_CODE_METHODPTR:
|
||
fprintf_filtered (stream, ")");
|
||
c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream,
|
||
show, 0, 0, flags);
|
||
break;
|
||
|
||
case TYPE_CODE_PTR:
|
||
case TYPE_CODE_REF:
|
||
case TYPE_CODE_RVALUE_REF:
|
||
c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream,
|
||
show, 1, 0, flags);
|
||
break;
|
||
|
||
case TYPE_CODE_METHOD:
|
||
case TYPE_CODE_FUNC:
|
||
if (passed_a_ptr)
|
||
fprintf_filtered (stream, ")");
|
||
if (!demangled_args)
|
||
c_type_print_args (type, stream, 0, current_language->la_language,
|
||
flags);
|
||
c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream,
|
||
show, passed_a_ptr, 0, flags);
|
||
break;
|
||
|
||
case TYPE_CODE_TYPEDEF:
|
||
c_type_print_varspec_suffix (TYPE_TARGET_TYPE (type), stream,
|
||
show, passed_a_ptr, 0, flags);
|
||
break;
|
||
|
||
case TYPE_CODE_UNDEF:
|
||
case TYPE_CODE_STRUCT:
|
||
case TYPE_CODE_UNION:
|
||
case TYPE_CODE_FLAGS:
|
||
case TYPE_CODE_ENUM:
|
||
case TYPE_CODE_INT:
|
||
case TYPE_CODE_FLT:
|
||
case TYPE_CODE_VOID:
|
||
case TYPE_CODE_ERROR:
|
||
case TYPE_CODE_CHAR:
|
||
case TYPE_CODE_BOOL:
|
||
case TYPE_CODE_SET:
|
||
case TYPE_CODE_RANGE:
|
||
case TYPE_CODE_STRING:
|
||
case TYPE_CODE_COMPLEX:
|
||
case TYPE_CODE_NAMESPACE:
|
||
case TYPE_CODE_DECFLOAT:
|
||
/* These types do not need a suffix. They are listed so that
|
||
gcc -Wall will report types that may not have been
|
||
considered. */
|
||
break;
|
||
default:
|
||
error (_("type not handled in c_type_print_varspec_suffix()"));
|
||
break;
|
||
}
|
||
}
|
||
|
||
/* A helper for c_type_print_base that displays template
|
||
parameters and their bindings, if needed.
|
||
|
||
TABLE is the local bindings table to use. If NULL, no printing is
|
||
done. Note that, at this point, TABLE won't have any useful
|
||
information in it -- but it is also used as a flag to
|
||
print_name_maybe_canonical to activate searching the global typedef
|
||
table.
|
||
|
||
TYPE is the type whose template arguments are being displayed.
|
||
|
||
STREAM is the stream on which to print. */
|
||
|
||
static void
|
||
c_type_print_template_args (const struct type_print_options *flags,
|
||
struct type *type, struct ui_file *stream)
|
||
{
|
||
int first = 1, i;
|
||
|
||
if (flags->raw)
|
||
return;
|
||
|
||
for (i = 0; i < TYPE_N_TEMPLATE_ARGUMENTS (type); ++i)
|
||
{
|
||
struct symbol *sym = TYPE_TEMPLATE_ARGUMENT (type, i);
|
||
|
||
if (SYMBOL_CLASS (sym) != LOC_TYPEDEF)
|
||
continue;
|
||
|
||
if (first)
|
||
{
|
||
wrap_here (" ");
|
||
fprintf_filtered (stream, _("[with %s = "),
|
||
SYMBOL_LINKAGE_NAME (sym));
|
||
first = 0;
|
||
}
|
||
else
|
||
{
|
||
fputs_filtered (", ", stream);
|
||
wrap_here (" ");
|
||
fprintf_filtered (stream, "%s = ", SYMBOL_LINKAGE_NAME (sym));
|
||
}
|
||
|
||
c_print_type (SYMBOL_TYPE (sym), "", stream, -1, 0, flags);
|
||
}
|
||
|
||
if (!first)
|
||
fputs_filtered (_("] "), stream);
|
||
}
|
||
|
||
/* Use 'print_spaces_filtered', but take into consideration the
|
||
type_print_options FLAGS in order to determine how many whitespaces
|
||
will be printed. */
|
||
|
||
static void
|
||
print_spaces_filtered_with_print_options
|
||
(int level, struct ui_file *stream, const struct type_print_options *flags)
|
||
{
|
||
if (!flags->print_offsets)
|
||
print_spaces_filtered (level, stream);
|
||
else
|
||
print_spaces_filtered (level + OFFSET_SPC_LEN, stream);
|
||
}
|
||
|
||
/* Output an access specifier to STREAM, if needed. LAST_ACCESS is the
|
||
last access specifier output (typically returned by this function). */
|
||
|
||
static enum access_specifier
|
||
output_access_specifier (struct ui_file *stream,
|
||
enum access_specifier last_access,
|
||
int level, bool is_protected, bool is_private,
|
||
const struct type_print_options *flags)
|
||
{
|
||
if (is_protected)
|
||
{
|
||
if (last_access != s_protected)
|
||
{
|
||
last_access = s_protected;
|
||
print_spaces_filtered_with_print_options (level + 2, stream, flags);
|
||
fprintf_filtered (stream, "protected:\n");
|
||
}
|
||
}
|
||
else if (is_private)
|
||
{
|
||
if (last_access != s_private)
|
||
{
|
||
last_access = s_private;
|
||
print_spaces_filtered_with_print_options (level + 2, stream, flags);
|
||
fprintf_filtered (stream, "private:\n");
|
||
}
|
||
}
|
||
else
|
||
{
|
||
if (last_access != s_public)
|
||
{
|
||
last_access = s_public;
|
||
print_spaces_filtered_with_print_options (level + 2, stream, flags);
|
||
fprintf_filtered (stream, "public:\n");
|
||
}
|
||
}
|
||
|
||
return last_access;
|
||
}
|
||
|
||
/* Print information about field at index FIELD_IDX of the union type
|
||
TYPE. Since union fields don't have the concept of offsets, we
|
||
just print their sizes.
|
||
|
||
The output is strongly based on pahole(1). */
|
||
|
||
static void
|
||
c_print_type_union_field_offset (struct type *type, unsigned int field_idx,
|
||
struct ui_file *stream)
|
||
{
|
||
struct type *ftype = check_typedef (TYPE_FIELD_TYPE (type, field_idx));
|
||
|
||
fprintf_filtered (stream, "/* %4u */", TYPE_LENGTH (ftype));
|
||
}
|
||
|
||
/* Helper function for ptype/o implementation that prints information
|
||
about a hole, if necessary. STREAM is where to print. BITPOS is
|
||
the bitpos of the current field. PODATA is the offset-printing
|
||
state. FOR_WHAT is a string describing the purpose of the
|
||
hole. */
|
||
|
||
static void
|
||
maybe_print_hole (struct ui_file *stream, unsigned int bitpos,
|
||
struct print_offset_data *podata, const char *for_what)
|
||
{
|
||
/* We check for PODATA->END_BITPOS > 0 because there is a specific
|
||
scenario when PODATA->END_BITPOS can be zero and BITPOS can be >
|
||
0: when we are dealing with a struct/class with a virtual method.
|
||
Because of the vtable, the first field of the struct/class will
|
||
have an offset of sizeof (void *) (the size of the vtable). If
|
||
we do not check for PODATA->END_BITPOS > 0 here, GDB will report
|
||
a hole before the first field, which is not accurate. */
|
||
if (podata->end_bitpos > 0 && podata->end_bitpos < bitpos)
|
||
{
|
||
/* If PODATA->END_BITPOS is smaller than the current type's
|
||
bitpos, it means there's a hole in the struct, so we report
|
||
it here. */
|
||
unsigned int hole = bitpos - podata->end_bitpos;
|
||
unsigned int hole_byte = hole / TARGET_CHAR_BIT;
|
||
unsigned int hole_bit = hole % TARGET_CHAR_BIT;
|
||
|
||
if (hole_bit > 0)
|
||
fprintf_filtered (stream, "/* XXX %2u-bit %s */\n", hole_bit,
|
||
for_what);
|
||
|
||
if (hole_byte > 0)
|
||
fprintf_filtered (stream, "/* XXX %2u-byte %s */\n", hole_byte,
|
||
for_what);
|
||
}
|
||
}
|
||
|
||
/* Print information about field at index FIELD_IDX of the struct type
|
||
TYPE.
|
||
|
||
PODATA->END_BITPOS is the one-past-the-end bit position of the
|
||
previous field (where we expect this field to be if there is no
|
||
hole). At the end, ENDPOS is updated to the one-past-the-end bit
|
||
position of the current field.
|
||
|
||
PODATA->OFFSET_BITPOS is the offset value we carry over when we are
|
||
printing a struct that is inside another struct; this is useful so
|
||
that the offset is constantly incremented (if we didn't carry it
|
||
over, the offset would be reset to zero when printing the inner
|
||
struct).
|
||
|
||
The output is strongly based on pahole(1). */
|
||
|
||
static void
|
||
c_print_type_struct_field_offset (struct type *type, unsigned int field_idx,
|
||
struct ui_file *stream,
|
||
struct print_offset_data *podata)
|
||
{
|
||
struct type *ftype = check_typedef (TYPE_FIELD_TYPE (type, field_idx));
|
||
unsigned int bitpos = TYPE_FIELD_BITPOS (type, field_idx);
|
||
unsigned int fieldsize_byte = TYPE_LENGTH (ftype);
|
||
unsigned int fieldsize_bit = fieldsize_byte * TARGET_CHAR_BIT;
|
||
|
||
maybe_print_hole (stream, bitpos, podata, "hole");
|
||
|
||
if (TYPE_FIELD_PACKED (type, field_idx))
|
||
{
|
||
/* We're dealing with a bitfield. Print how many bits are left
|
||
to be used. */
|
||
unsigned int bitsize = TYPE_FIELD_BITSIZE (type, field_idx);
|
||
/* The bitpos relative to the beginning of our container
|
||
field. */
|
||
unsigned int relative_bitpos;
|
||
|
||
/* The following was copied from
|
||
value.c:value_primitive_field. */
|
||
if ((bitpos % fieldsize_bit) + bitsize <= fieldsize_bit)
|
||
relative_bitpos = bitpos % fieldsize_bit;
|
||
else
|
||
relative_bitpos = bitpos % TARGET_CHAR_BIT;
|
||
|
||
/* This is the exact offset (in bits) of this bitfield. */
|
||
unsigned int bit_offset
|
||
= (bitpos - relative_bitpos) + podata->offset_bitpos;
|
||
|
||
/* The position of the field, relative to the beginning of the
|
||
struct, and how many bits are left to be used in this
|
||
container. */
|
||
fprintf_filtered (stream, "/* %4u:%2u", bit_offset / TARGET_CHAR_BIT,
|
||
fieldsize_bit - (relative_bitpos + bitsize));
|
||
fieldsize_bit = bitsize;
|
||
}
|
||
else
|
||
{
|
||
/* The position of the field, relative to the beginning of the
|
||
struct. */
|
||
fprintf_filtered (stream, "/* %4u",
|
||
(bitpos + podata->offset_bitpos) / TARGET_CHAR_BIT);
|
||
|
||
fprintf_filtered (stream, " ");
|
||
}
|
||
|
||
fprintf_filtered (stream, " | %4u */", fieldsize_byte);
|
||
|
||
podata->end_bitpos = bitpos + fieldsize_bit;
|
||
}
|
||
|
||
/* Return true if an access label (i.e., "public:", "private:",
|
||
"protected:") needs to be printed for TYPE. */
|
||
|
||
static bool
|
||
need_access_label_p (struct type *type)
|
||
{
|
||
if (TYPE_DECLARED_CLASS (type))
|
||
{
|
||
QUIT;
|
||
for (int i = TYPE_N_BASECLASSES (type); i < TYPE_NFIELDS (type); i++)
|
||
if (!TYPE_FIELD_PRIVATE (type, i))
|
||
return true;
|
||
QUIT;
|
||
for (int j = 0; j < TYPE_NFN_FIELDS (type); j++)
|
||
for (int i = 0; i < TYPE_FN_FIELDLIST_LENGTH (type, j); i++)
|
||
if (!TYPE_FN_FIELD_PRIVATE (TYPE_FN_FIELDLIST1 (type,
|
||
j), i))
|
||
return true;
|
||
QUIT;
|
||
for (int i = 0; i < TYPE_TYPEDEF_FIELD_COUNT (type); ++i)
|
||
if (!TYPE_TYPEDEF_FIELD_PRIVATE (type, i))
|
||
return true;
|
||
}
|
||
else
|
||
{
|
||
QUIT;
|
||
for (int i = TYPE_N_BASECLASSES (type); i < TYPE_NFIELDS (type); i++)
|
||
if (TYPE_FIELD_PRIVATE (type, i) || TYPE_FIELD_PROTECTED (type, i))
|
||
return true;
|
||
QUIT;
|
||
for (int j = 0; j < TYPE_NFN_FIELDS (type); j++)
|
||
{
|
||
QUIT;
|
||
for (int i = 0; i < TYPE_FN_FIELDLIST_LENGTH (type, j); i++)
|
||
if (TYPE_FN_FIELD_PROTECTED (TYPE_FN_FIELDLIST1 (type,
|
||
j), i)
|
||
|| TYPE_FN_FIELD_PRIVATE (TYPE_FN_FIELDLIST1 (type,
|
||
j),
|
||
i))
|
||
return true;
|
||
}
|
||
QUIT;
|
||
for (int i = 0; i < TYPE_TYPEDEF_FIELD_COUNT (type); ++i)
|
||
if (TYPE_TYPEDEF_FIELD_PROTECTED (type, i)
|
||
|| TYPE_TYPEDEF_FIELD_PRIVATE (type, i))
|
||
return true;
|
||
}
|
||
|
||
return false;
|
||
}
|
||
|
||
/* Helper function that temporarily disables FLAGS->PRINT_OFFSETS,
|
||
calls 'c_print_type_1', and then reenables FLAGS->PRINT_OFFSETS if
|
||
applicable. */
|
||
|
||
static void
|
||
c_print_type_no_offsets (struct type *type,
|
||
const char *varstring,
|
||
struct ui_file *stream,
|
||
int show, int level,
|
||
struct type_print_options *flags,
|
||
struct print_offset_data *podata)
|
||
{
|
||
unsigned int old_po = flags->print_offsets;
|
||
|
||
/* Temporarily disable print_offsets, because it would mess with
|
||
indentation. */
|
||
flags->print_offsets = 0;
|
||
c_print_type_1 (type, varstring, stream, show, level, flags, podata);
|
||
flags->print_offsets = old_po;
|
||
}
|
||
|
||
/* Helper for 'c_type_print_base' that handles structs and unions.
|
||
For a description of the arguments, see 'c_type_print_base'. */
|
||
|
||
static void
|
||
c_type_print_base_struct_union (struct type *type, struct ui_file *stream,
|
||
int show, int level,
|
||
const struct type_print_options *flags,
|
||
struct print_offset_data *podata)
|
||
{
|
||
struct type_print_options local_flags = *flags;
|
||
local_flags.local_typedefs = NULL;
|
||
|
||
std::unique_ptr<typedef_hash_table> hash_holder;
|
||
if (!flags->raw)
|
||
{
|
||
if (flags->local_typedefs)
|
||
local_flags.local_typedefs
|
||
= new typedef_hash_table (*flags->local_typedefs);
|
||
else
|
||
local_flags.local_typedefs = new typedef_hash_table ();
|
||
|
||
hash_holder.reset (local_flags.local_typedefs);
|
||
}
|
||
|
||
c_type_print_modifier (type, stream, 0, 1);
|
||
if (TYPE_CODE (type) == TYPE_CODE_UNION)
|
||
fprintf_filtered (stream, "union ");
|
||
else if (TYPE_DECLARED_CLASS (type))
|
||
fprintf_filtered (stream, "class ");
|
||
else
|
||
fprintf_filtered (stream, "struct ");
|
||
|
||
/* Print the tag if it exists. The HP aCC compiler emits a
|
||
spurious "{unnamed struct}"/"{unnamed union}"/"{unnamed
|
||
enum}" tag for unnamed struct/union/enum's, which we don't
|
||
want to print. */
|
||
if (TYPE_TAG_NAME (type) != NULL
|
||
&& !startswith (TYPE_TAG_NAME (type), "{unnamed"))
|
||
{
|
||
/* When printing the tag name, we are still effectively
|
||
printing in the outer context, hence the use of FLAGS
|
||
here. */
|
||
print_name_maybe_canonical (TYPE_TAG_NAME (type), flags, stream);
|
||
if (show > 0)
|
||
fputs_filtered (" ", stream);
|
||
}
|
||
|
||
if (show < 0)
|
||
{
|
||
/* If we just printed a tag name, no need to print anything
|
||
else. */
|
||
if (TYPE_TAG_NAME (type) == NULL)
|
||
fprintf_filtered (stream, "{...}");
|
||
}
|
||
else if (show > 0 || TYPE_TAG_NAME (type) == NULL)
|
||
{
|
||
struct type *basetype;
|
||
int vptr_fieldno;
|
||
|
||
c_type_print_template_args (&local_flags, type, stream);
|
||
|
||
/* Add in template parameters when printing derivation info. */
|
||
if (local_flags.local_typedefs != NULL)
|
||
local_flags.local_typedefs->add_template_parameters (type);
|
||
cp_type_print_derivation_info (stream, type, &local_flags);
|
||
|
||
/* This holds just the global typedefs and the template
|
||
parameters. */
|
||
struct type_print_options semi_local_flags = *flags;
|
||
semi_local_flags.local_typedefs = NULL;
|
||
|
||
std::unique_ptr<typedef_hash_table> semi_holder;
|
||
if (local_flags.local_typedefs != nullptr)
|
||
{
|
||
semi_local_flags.local_typedefs
|
||
= new typedef_hash_table (*local_flags.local_typedefs);
|
||
semi_holder.reset (semi_local_flags.local_typedefs);
|
||
|
||
/* Now add in the local typedefs. */
|
||
local_flags.local_typedefs->recursively_update (type);
|
||
}
|
||
|
||
fprintf_filtered (stream, "{\n");
|
||
|
||
if (TYPE_NFIELDS (type) == 0 && TYPE_NFN_FIELDS (type) == 0
|
||
&& TYPE_TYPEDEF_FIELD_COUNT (type) == 0)
|
||
{
|
||
if (TYPE_STUB (type))
|
||
fprintfi_filtered (level + 4, stream,
|
||
_("<incomplete type>\n"));
|
||
else
|
||
fprintfi_filtered (level + 4, stream,
|
||
_("<no data fields>\n"));
|
||
}
|
||
|
||
/* Start off with no specific section type, so we can print
|
||
one for the first field we find, and use that section type
|
||
thereafter until we find another type. */
|
||
|
||
enum access_specifier section_type = s_none;
|
||
|
||
/* For a class, if all members are private, there's no need
|
||
for a "private:" label; similarly, for a struct or union
|
||
masquerading as a class, if all members are public, there's
|
||
no need for a "public:" label. */
|
||
bool need_access_label = need_access_label_p (type);
|
||
|
||
/* If there is a base class for this type,
|
||
do not print the field that it occupies. */
|
||
|
||
int len = TYPE_NFIELDS (type);
|
||
vptr_fieldno = get_vptr_fieldno (type, &basetype);
|
||
|
||
struct print_offset_data local_podata;
|
||
|
||
for (int i = TYPE_N_BASECLASSES (type); i < len; i++)
|
||
{
|
||
QUIT;
|
||
|
||
/* If we have a virtual table pointer, omit it. Even if
|
||
virtual table pointers are not specifically marked in
|
||
the debug info, they should be artificial. */
|
||
if ((i == vptr_fieldno && type == basetype)
|
||
|| TYPE_FIELD_ARTIFICIAL (type, i))
|
||
continue;
|
||
|
||
if (need_access_label)
|
||
{
|
||
section_type = output_access_specifier
|
||
(stream, section_type, level,
|
||
TYPE_FIELD_PROTECTED (type, i),
|
||
TYPE_FIELD_PRIVATE (type, i), flags);
|
||
}
|
||
|
||
bool is_static = field_is_static (&TYPE_FIELD (type, i));
|
||
|
||
if (flags->print_offsets)
|
||
{
|
||
if (!is_static)
|
||
{
|
||
if (TYPE_CODE (type) == TYPE_CODE_STRUCT)
|
||
{
|
||
c_print_type_struct_field_offset
|
||
(type, i, stream, podata);
|
||
}
|
||
else if (TYPE_CODE (type) == TYPE_CODE_UNION)
|
||
c_print_type_union_field_offset (type, i, stream);
|
||
}
|
||
else
|
||
print_spaces_filtered (OFFSET_SPC_LEN, stream);
|
||
}
|
||
|
||
print_spaces_filtered (level + 4, stream);
|
||
if (is_static)
|
||
fprintf_filtered (stream, "static ");
|
||
|
||
int newshow = show - 1;
|
||
|
||
if (flags->print_offsets
|
||
&& (TYPE_CODE (TYPE_FIELD_TYPE (type, i)) == TYPE_CODE_STRUCT
|
||
|| TYPE_CODE (TYPE_FIELD_TYPE (type, i)) == TYPE_CODE_UNION))
|
||
{
|
||
/* If we're printing offsets and this field's type is
|
||
either a struct or an union, then we're interested in
|
||
expanding it. */
|
||
++newshow;
|
||
|
||
/* Make sure we carry our offset when we expand the
|
||
struct/union. */
|
||
local_podata.offset_bitpos
|
||
= podata->offset_bitpos + TYPE_FIELD_BITPOS (type, i);
|
||
/* We're entering a struct/union. Right now,
|
||
PODATA->END_BITPOS points right *after* the
|
||
struct/union. However, when printing the first field
|
||
of this inner struct/union, the end_bitpos we're
|
||
expecting is exactly at the beginning of the
|
||
struct/union. Therefore, we subtract the length of
|
||
the whole struct/union. */
|
||
local_podata.end_bitpos
|
||
= podata->end_bitpos
|
||
- TYPE_LENGTH (TYPE_FIELD_TYPE (type, i)) * TARGET_CHAR_BIT;
|
||
}
|
||
|
||
c_print_type_1 (TYPE_FIELD_TYPE (type, i),
|
||
TYPE_FIELD_NAME (type, i),
|
||
stream, newshow, level + 4,
|
||
&local_flags, &local_podata);
|
||
|
||
if (!is_static && TYPE_FIELD_PACKED (type, i))
|
||
{
|
||
/* It is a bitfield. This code does not attempt
|
||
to look at the bitpos and reconstruct filler,
|
||
unnamed fields. This would lead to misleading
|
||
results if the compiler does not put out fields
|
||
for such things (I don't know what it does). */
|
||
fprintf_filtered (stream, " : %d",
|
||
TYPE_FIELD_BITSIZE (type, i));
|
||
}
|
||
fprintf_filtered (stream, ";\n");
|
||
}
|
||
|
||
/* If there are both fields and methods, put a blank line
|
||
between them. Make sure to count only method that we
|
||
will display; artificial methods will be hidden. */
|
||
len = TYPE_NFN_FIELDS (type);
|
||
if (!flags->print_methods)
|
||
len = 0;
|
||
int real_len = 0;
|
||
for (int i = 0; i < len; i++)
|
||
{
|
||
struct fn_field *f = TYPE_FN_FIELDLIST1 (type, i);
|
||
int len2 = TYPE_FN_FIELDLIST_LENGTH (type, i);
|
||
int j;
|
||
|
||
for (j = 0; j < len2; j++)
|
||
if (!TYPE_FN_FIELD_ARTIFICIAL (f, j))
|
||
real_len++;
|
||
}
|
||
if (real_len > 0 && section_type != s_none)
|
||
fprintf_filtered (stream, "\n");
|
||
|
||
/* C++: print out the methods. */
|
||
for (int i = 0; i < len; i++)
|
||
{
|
||
struct fn_field *f = TYPE_FN_FIELDLIST1 (type, i);
|
||
int j, len2 = TYPE_FN_FIELDLIST_LENGTH (type, i);
|
||
const char *method_name = TYPE_FN_FIELDLIST_NAME (type, i);
|
||
const char *name = type_name_no_tag (type);
|
||
int is_constructor = name && strcmp (method_name,
|
||
name) == 0;
|
||
|
||
for (j = 0; j < len2; j++)
|
||
{
|
||
const char *mangled_name;
|
||
gdb::unique_xmalloc_ptr<char> mangled_name_holder;
|
||
char *demangled_name;
|
||
const char *physname = TYPE_FN_FIELD_PHYSNAME (f, j);
|
||
int is_full_physname_constructor =
|
||
TYPE_FN_FIELD_CONSTRUCTOR (f, j)
|
||
|| is_constructor_name (physname)
|
||
|| is_destructor_name (physname)
|
||
|| method_name[0] == '~';
|
||
|
||
/* Do not print out artificial methods. */
|
||
if (TYPE_FN_FIELD_ARTIFICIAL (f, j))
|
||
continue;
|
||
|
||
QUIT;
|
||
section_type = output_access_specifier
|
||
(stream, section_type, level,
|
||
TYPE_FN_FIELD_PROTECTED (f, j),
|
||
TYPE_FN_FIELD_PRIVATE (f, j), flags);
|
||
|
||
print_spaces_filtered_with_print_options (level + 4, stream,
|
||
flags);
|
||
if (TYPE_FN_FIELD_VIRTUAL_P (f, j))
|
||
fprintf_filtered (stream, "virtual ");
|
||
else if (TYPE_FN_FIELD_STATIC_P (f, j))
|
||
fprintf_filtered (stream, "static ");
|
||
if (TYPE_TARGET_TYPE (TYPE_FN_FIELD_TYPE (f, j)) == 0)
|
||
{
|
||
/* Keep GDB from crashing here. */
|
||
fprintf_filtered (stream,
|
||
_("<undefined type> %s;\n"),
|
||
TYPE_FN_FIELD_PHYSNAME (f, j));
|
||
break;
|
||
}
|
||
else if (!is_constructor /* Constructors don't
|
||
have declared
|
||
types. */
|
||
&& !is_full_physname_constructor /* " " */
|
||
&& !is_type_conversion_operator (type, i, j))
|
||
{
|
||
c_print_type_no_offsets
|
||
(TYPE_TARGET_TYPE (TYPE_FN_FIELD_TYPE (f, j)),
|
||
"", stream, -1, 0, &local_flags, podata);
|
||
|
||
fputs_filtered (" ", stream);
|
||
}
|
||
if (TYPE_FN_FIELD_STUB (f, j))
|
||
{
|
||
/* Build something we can demangle. */
|
||
mangled_name_holder.reset (gdb_mangle_name (type, i, j));
|
||
mangled_name = mangled_name_holder.get ();
|
||
}
|
||
else
|
||
mangled_name = TYPE_FN_FIELD_PHYSNAME (f, j);
|
||
|
||
demangled_name =
|
||
gdb_demangle (mangled_name,
|
||
DMGL_ANSI | DMGL_PARAMS);
|
||
if (demangled_name == NULL)
|
||
{
|
||
/* In some cases (for instance with the HP
|
||
demangling), if a function has more than 10
|
||
arguments, the demangling will fail.
|
||
Let's try to reconstruct the function
|
||
signature from the symbol information. */
|
||
if (!TYPE_FN_FIELD_STUB (f, j))
|
||
{
|
||
int staticp = TYPE_FN_FIELD_STATIC_P (f, j);
|
||
struct type *mtype = TYPE_FN_FIELD_TYPE (f, j);
|
||
|
||
cp_type_print_method_args (mtype,
|
||
"",
|
||
method_name,
|
||
staticp,
|
||
stream, &local_flags);
|
||
}
|
||
else
|
||
fprintf_filtered (stream,
|
||
_("<badly mangled name '%s'>"),
|
||
mangled_name);
|
||
}
|
||
else
|
||
{
|
||
char *p;
|
||
char *demangled_no_class
|
||
= remove_qualifiers (demangled_name);
|
||
|
||
/* Get rid of the `static' appended by the
|
||
demangler. */
|
||
p = strstr (demangled_no_class, " static");
|
||
if (p != NULL)
|
||
{
|
||
int length = p - demangled_no_class;
|
||
char *demangled_no_static;
|
||
|
||
demangled_no_static
|
||
= (char *) xmalloc (length + 1);
|
||
strncpy (demangled_no_static,
|
||
demangled_no_class, length);
|
||
*(demangled_no_static + length) = '\0';
|
||
fputs_filtered (demangled_no_static, stream);
|
||
xfree (demangled_no_static);
|
||
}
|
||
else
|
||
fputs_filtered (demangled_no_class, stream);
|
||
xfree (demangled_name);
|
||
}
|
||
|
||
fprintf_filtered (stream, ";\n");
|
||
}
|
||
}
|
||
|
||
/* Print out nested types. */
|
||
if (TYPE_NESTED_TYPES_COUNT (type) != 0
|
||
&& semi_local_flags.print_nested_type_limit != 0)
|
||
{
|
||
if (semi_local_flags.print_nested_type_limit > 0)
|
||
--semi_local_flags.print_nested_type_limit;
|
||
|
||
if (TYPE_NFIELDS (type) != 0 || TYPE_NFN_FIELDS (type) != 0)
|
||
fprintf_filtered (stream, "\n");
|
||
|
||
for (int i = 0; i < TYPE_NESTED_TYPES_COUNT (type); ++i)
|
||
{
|
||
print_spaces_filtered_with_print_options (level + 4, stream,
|
||
flags);
|
||
c_print_type_no_offsets (TYPE_NESTED_TYPES_FIELD_TYPE (type, i),
|
||
"", stream, show, level + 4,
|
||
&semi_local_flags, podata);
|
||
fprintf_filtered (stream, ";\n");
|
||
}
|
||
}
|
||
|
||
/* Print typedefs defined in this class. */
|
||
|
||
if (TYPE_TYPEDEF_FIELD_COUNT (type) != 0 && flags->print_typedefs)
|
||
{
|
||
if (TYPE_NFIELDS (type) != 0 || TYPE_NFN_FIELDS (type) != 0
|
||
|| TYPE_NESTED_TYPES_COUNT (type) != 0)
|
||
fprintf_filtered (stream, "\n");
|
||
|
||
for (int i = 0; i < TYPE_TYPEDEF_FIELD_COUNT (type); i++)
|
||
{
|
||
struct type *target = TYPE_TYPEDEF_FIELD_TYPE (type, i);
|
||
|
||
/* Dereference the typedef declaration itself. */
|
||
gdb_assert (TYPE_CODE (target) == TYPE_CODE_TYPEDEF);
|
||
target = TYPE_TARGET_TYPE (target);
|
||
|
||
if (need_access_label)
|
||
{
|
||
section_type = output_access_specifier
|
||
(stream, section_type, level,
|
||
TYPE_TYPEDEF_FIELD_PROTECTED (type, i),
|
||
TYPE_TYPEDEF_FIELD_PRIVATE (type, i), flags);
|
||
}
|
||
print_spaces_filtered_with_print_options (level + 4, stream,
|
||
flags);
|
||
fprintf_filtered (stream, "typedef ");
|
||
|
||
/* We want to print typedefs with substitutions
|
||
from the template parameters or globally-known
|
||
typedefs but not local typedefs. */
|
||
c_print_type_no_offsets (target,
|
||
TYPE_TYPEDEF_FIELD_NAME (type, i),
|
||
stream, show - 1, level + 4,
|
||
&semi_local_flags, podata);
|
||
fprintf_filtered (stream, ";\n");
|
||
}
|
||
}
|
||
|
||
if (flags->print_offsets)
|
||
{
|
||
if (show > 0)
|
||
{
|
||
unsigned int bitpos = TYPE_LENGTH (type) * TARGET_CHAR_BIT;
|
||
maybe_print_hole (stream, bitpos, podata, "padding");
|
||
|
||
fputs_filtered ("\n", stream);
|
||
print_spaces_filtered_with_print_options (level + 4,
|
||
stream,
|
||
flags);
|
||
fprintf_filtered (stream, "/* total size (bytes): %4u */\n",
|
||
TYPE_LENGTH (type));
|
||
}
|
||
|
||
print_spaces_filtered (OFFSET_SPC_LEN, stream);
|
||
if (level == 0)
|
||
print_spaces_filtered (2, stream);
|
||
}
|
||
|
||
fprintfi_filtered (level, stream, "}");
|
||
}
|
||
}
|
||
|
||
/* Print the name of the type (or the ultimate pointer target,
|
||
function value or array element), or the description of a structure
|
||
or union.
|
||
|
||
SHOW positive means print details about the type (e.g. enum
|
||
values), and print structure elements passing SHOW - 1 for show.
|
||
|
||
SHOW negative means just print the type name or struct tag if there
|
||
is one. If there is no name, print something sensible but concise
|
||
like "struct {...}".
|
||
|
||
SHOW zero means just print the type name or struct tag if there is
|
||
one. If there is no name, print something sensible but not as
|
||
concise like "struct {int x; int y;}".
|
||
|
||
LEVEL is the number of spaces to indent by.
|
||
We increase it for some recursive calls. */
|
||
|
||
static void
|
||
c_type_print_base_1 (struct type *type, struct ui_file *stream,
|
||
int show, int level,
|
||
const struct type_print_options *flags,
|
||
struct print_offset_data *podata)
|
||
{
|
||
int i;
|
||
int len;
|
||
|
||
QUIT;
|
||
|
||
if (type == NULL)
|
||
{
|
||
fputs_filtered (_("<type unknown>"), stream);
|
||
return;
|
||
}
|
||
|
||
/* When SHOW is zero or less, and there is a valid type name, then
|
||
always just print the type name directly from the type. */
|
||
/* If we have "typedef struct foo {. . .} bar;" do we want to print
|
||
it as "struct foo" or as "bar"? Pick the latter, because C++
|
||
folk tend to expect things like "class5 *foo" rather than "struct
|
||
class5 *foo". */
|
||
|
||
if (show <= 0
|
||
&& TYPE_NAME (type) != NULL)
|
||
{
|
||
c_type_print_modifier (type, stream, 0, 1);
|
||
print_name_maybe_canonical (TYPE_NAME (type), flags, stream);
|
||
return;
|
||
}
|
||
|
||
type = check_typedef (type);
|
||
|
||
switch (TYPE_CODE (type))
|
||
{
|
||
case TYPE_CODE_TYPEDEF:
|
||
/* If we get here, the typedef doesn't have a name, and we
|
||
couldn't resolve TYPE_TARGET_TYPE. Not much we can do. */
|
||
gdb_assert (TYPE_NAME (type) == NULL);
|
||
gdb_assert (TYPE_TARGET_TYPE (type) == NULL);
|
||
fprintf_filtered (stream, _("<unnamed typedef>"));
|
||
break;
|
||
|
||
case TYPE_CODE_FUNC:
|
||
case TYPE_CODE_METHOD:
|
||
if (TYPE_TARGET_TYPE (type) == NULL)
|
||
type_print_unknown_return_type (stream);
|
||
else
|
||
c_type_print_base_1 (TYPE_TARGET_TYPE (type),
|
||
stream, show, level, flags, podata);
|
||
break;
|
||
case TYPE_CODE_ARRAY:
|
||
case TYPE_CODE_PTR:
|
||
case TYPE_CODE_MEMBERPTR:
|
||
case TYPE_CODE_REF:
|
||
case TYPE_CODE_RVALUE_REF:
|
||
case TYPE_CODE_METHODPTR:
|
||
c_type_print_base_1 (TYPE_TARGET_TYPE (type),
|
||
stream, show, level, flags, podata);
|
||
break;
|
||
|
||
case TYPE_CODE_STRUCT:
|
||
case TYPE_CODE_UNION:
|
||
c_type_print_base_struct_union (type, stream, show, level, flags,
|
||
podata);
|
||
break;
|
||
|
||
case TYPE_CODE_ENUM:
|
||
c_type_print_modifier (type, stream, 0, 1);
|
||
fprintf_filtered (stream, "enum ");
|
||
if (TYPE_DECLARED_CLASS (type))
|
||
fprintf_filtered (stream, "class ");
|
||
/* Print the tag name if it exists.
|
||
The aCC compiler emits a spurious
|
||
"{unnamed struct}"/"{unnamed union}"/"{unnamed enum}"
|
||
tag for unnamed struct/union/enum's, which we don't
|
||
want to print. */
|
||
if (TYPE_TAG_NAME (type) != NULL
|
||
&& !startswith (TYPE_TAG_NAME (type), "{unnamed"))
|
||
{
|
||
print_name_maybe_canonical (TYPE_TAG_NAME (type), flags, stream);
|
||
if (show > 0)
|
||
fputs_filtered (" ", stream);
|
||
}
|
||
|
||
wrap_here (" ");
|
||
if (show < 0)
|
||
{
|
||
/* If we just printed a tag name, no need to print anything
|
||
else. */
|
||
if (TYPE_TAG_NAME (type) == NULL)
|
||
fprintf_filtered (stream, "{...}");
|
||
}
|
||
else if (show > 0 || TYPE_TAG_NAME (type) == NULL)
|
||
{
|
||
LONGEST lastval = 0;
|
||
|
||
/* We can't handle this case perfectly, as DWARF does not
|
||
tell us whether or not the underlying type was specified
|
||
in the source (and other debug formats don't provide this
|
||
at all). We choose to print the underlying type, if it
|
||
has a name, when in C++ on the theory that it's better to
|
||
print too much than too little; but conversely not to
|
||
print something egregiously outside the current
|
||
language's syntax. */
|
||
if (current_language->la_language == language_cplus
|
||
&& TYPE_TARGET_TYPE (type) != NULL)
|
||
{
|
||
struct type *underlying = check_typedef (TYPE_TARGET_TYPE (type));
|
||
|
||
if (TYPE_NAME (underlying) != NULL)
|
||
fprintf_filtered (stream, ": %s ", TYPE_NAME (underlying));
|
||
}
|
||
|
||
fprintf_filtered (stream, "{");
|
||
len = TYPE_NFIELDS (type);
|
||
for (i = 0; i < len; i++)
|
||
{
|
||
QUIT;
|
||
if (i)
|
||
fprintf_filtered (stream, ", ");
|
||
wrap_here (" ");
|
||
fputs_filtered (TYPE_FIELD_NAME (type, i), stream);
|
||
if (lastval != TYPE_FIELD_ENUMVAL (type, i))
|
||
{
|
||
fprintf_filtered (stream, " = %s",
|
||
plongest (TYPE_FIELD_ENUMVAL (type, i)));
|
||
lastval = TYPE_FIELD_ENUMVAL (type, i);
|
||
}
|
||
lastval++;
|
||
}
|
||
fprintf_filtered (stream, "}");
|
||
}
|
||
break;
|
||
|
||
case TYPE_CODE_FLAGS:
|
||
{
|
||
struct type_print_options local_flags = *flags;
|
||
|
||
local_flags.local_typedefs = NULL;
|
||
|
||
c_type_print_modifier (type, stream, 0, 1);
|
||
fprintf_filtered (stream, "flag ");
|
||
print_name_maybe_canonical (TYPE_NAME (type), flags, stream);
|
||
if (show > 0)
|
||
{
|
||
fputs_filtered (" ", stream);
|
||
fprintf_filtered (stream, "{\n");
|
||
if (TYPE_NFIELDS (type) == 0)
|
||
{
|
||
if (TYPE_STUB (type))
|
||
fprintfi_filtered (level + 4, stream,
|
||
_("<incomplete type>\n"));
|
||
else
|
||
fprintfi_filtered (level + 4, stream,
|
||
_("<no data fields>\n"));
|
||
}
|
||
len = TYPE_NFIELDS (type);
|
||
for (i = 0; i < len; i++)
|
||
{
|
||
QUIT;
|
||
print_spaces_filtered (level + 4, stream);
|
||
/* We pass "show" here and not "show - 1" to get enum types
|
||
printed. There's no other way to see them. */
|
||
c_print_type_1 (TYPE_FIELD_TYPE (type, i),
|
||
TYPE_FIELD_NAME (type, i),
|
||
stream, show, level + 4,
|
||
&local_flags, podata);
|
||
fprintf_filtered (stream, " @%s",
|
||
plongest (TYPE_FIELD_BITPOS (type, i)));
|
||
if (TYPE_FIELD_BITSIZE (type, i) > 1)
|
||
{
|
||
fprintf_filtered (stream, "-%s",
|
||
plongest (TYPE_FIELD_BITPOS (type, i)
|
||
+ TYPE_FIELD_BITSIZE (type, i)
|
||
- 1));
|
||
}
|
||
fprintf_filtered (stream, ";\n");
|
||
}
|
||
fprintfi_filtered (level, stream, "}");
|
||
}
|
||
}
|
||
break;
|
||
|
||
case TYPE_CODE_VOID:
|
||
fprintf_filtered (stream, "void");
|
||
break;
|
||
|
||
case TYPE_CODE_UNDEF:
|
||
fprintf_filtered (stream, _("struct <unknown>"));
|
||
break;
|
||
|
||
case TYPE_CODE_ERROR:
|
||
fprintf_filtered (stream, "%s", TYPE_ERROR_NAME (type));
|
||
break;
|
||
|
||
case TYPE_CODE_RANGE:
|
||
/* This should not occur. */
|
||
fprintf_filtered (stream, _("<range type>"));
|
||
break;
|
||
|
||
case TYPE_CODE_NAMESPACE:
|
||
fputs_filtered ("namespace ", stream);
|
||
fputs_filtered (TYPE_TAG_NAME (type), stream);
|
||
break;
|
||
|
||
default:
|
||
/* Handle types not explicitly handled by the other cases, such
|
||
as fundamental types. For these, just print whatever the
|
||
type name is, as recorded in the type itself. If there is no
|
||
type name, then complain. */
|
||
if (TYPE_NAME (type) != NULL)
|
||
{
|
||
c_type_print_modifier (type, stream, 0, 1);
|
||
print_name_maybe_canonical (TYPE_NAME (type), flags, stream);
|
||
}
|
||
else
|
||
{
|
||
/* At least for dump_symtab, it is important that this not
|
||
be an error (). */
|
||
fprintf_filtered (stream, _("<invalid type code %d>"),
|
||
TYPE_CODE (type));
|
||
}
|
||
break;
|
||
}
|
||
}
|
||
|
||
/* See c_type_print_base_1. */
|
||
|
||
void
|
||
c_type_print_base (struct type *type, struct ui_file *stream,
|
||
int show, int level,
|
||
const struct type_print_options *flags)
|
||
{
|
||
struct print_offset_data podata;
|
||
|
||
c_type_print_base_1 (type, stream, show, level, flags, &podata);
|
||
}
|