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https://sourceware.org/git/binutils-gdb.git
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fbb46296d7
This commit adds a flag to the ptype command in order to print the offsets and sizes of struct members using the hexadecimal notation. The 'x' flag ensures use of the hexadecimal notation while the 'd' flag ensures use of the decimal notation. The default is to use decimal notation. Before this patch, gdb only uses decimal notation, as pointed out in PR gdb/22640. Here is an example of this new behavior with hex output turned on: (gdb) ptype /ox struct type_print_options /* offset | size */ type = struct type_print_options { /* 0x0000: 0x0 | 0x0004 */ unsigned int raw : 1; /* 0x0000: 0x1 | 0x0004 */ unsigned int print_methods : 1; /* 0x0000: 0x2 | 0x0004 */ unsigned int print_typedefs : 1; /* 0x0000: 0x3 | 0x0004 */ unsigned int print_offsets : 1; /* 0x0000: 0x4 | 0x0004 */ unsigned int print_in_hex : 1; /* XXX 3-bit hole */ /* XXX 3-byte hole */ /* 0x0004 | 0x0004 */ int print_nested_type_limit; /* 0x0008 | 0x0008 */ typedef_hash_table *local_typedefs; /* 0x0010 | 0x0008 */ typedef_hash_table *global_typedefs; /* 0x0018 | 0x0008 */ ext_lang_type_printers *global_printers; /* total size (bytes): 32 */ } This patch also adds the 'set print type hex' and 'show print type hex' commands in order to set and inspect the default behavior regarding the use of decimal or hexadecimal notation when printing struct sizes and offsets. Tested using on x86_64. gdb/ChangeLog: PR gdb/22640 * typeprint.h (struct type_print_options): Add print_in_hex flag. (struct print_offset_data): Add print_in_hex flag, add a constructor accepting a type_print_options* argument. * typeprint.c (type_print_raw_options, default_ptype_flags): Set default value for print_in_hex. (print_offset_data::indentation): Allow more horizontal space. (print_offset_data::print_offset_data): Add ctor. (print_offset_data::maybe_print_hole, print_offset_data::update): Handle the print_in_hex flag. (whatis_exp): Handle 'x' and 'd' flags. (print_offsets_and_sizes_in_hex): Declare. (set_print_offsets_and_sizes_in_hex): Create. (show_print_offsets_and_sizes_in_hex): Create. (_initialize_typeprint): Update help message for the ptype command, register the 'set print type hex' and 'show print type hex' commands. * c-typeprint.c (c_print_type, c_type_print_base_struct_union) (c_type_print_base): Construct the print_offset_data object using the type_print_optons parameter. * rust-lang.c (rust_language::print_type): Construct the print_offset_data object using the type_print_optons parameter. * NEWS: Mention the new flags of the ptype command. gdb/doc/ChangeLog: PR gdb/22640 * gdb.texinfo (Symbols): Describe the 'x' and 'd' flags of the ptype command, describe 'set print type hex' and 'show print type hex' commands. Update 'ptype/o' examples. gdb/testsuite/ChangeLog: PR gdb/22640 * gdb.base/ptype-offsets.exp: Add tests to verify the behavior of 'ptype/ox' and 'ptype/od'. Check that 'set print type hex' changes the default behavior of 'ptype/o'. Update to take into account new horizontal layout. * gdb.rust/simple.exp: Update ptype test to check new horizontal layout. * gdb.rust/union.exp: Same.
906 lines
25 KiB
C
906 lines
25 KiB
C
/* Language independent support for printing types for GDB, the GNU debugger.
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Copyright (C) 1986-2021 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_in_hex */
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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_in_hex */
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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 = 27;
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/* See typeprint.h. */
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print_offset_data::print_offset_data (const struct type_print_options *flags)
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{
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if (flags != nullptr)
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print_in_hex = flags->print_in_hex;
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}
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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 %-7s */\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 %-7s */\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 (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 (field_idx).type ());
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if (type->code () == 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, "/* %6s */",
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(print_in_hex ?
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hex_string_custom (TYPE_LENGTH (ftype), 4) :
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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,
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(print_in_hex ? "/* 0x%04x: 0x%x" : "/* %6u:%2u "),
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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, (print_in_hex ? "/* 0x%04x" : "/* %6u"),
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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, (print_in_hex ? " | 0x%04x */" : " | %6u */"),
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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.get (), 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.get (), 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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: 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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}
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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.reset (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.get (), copy_typedef_hash_element,
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m_table.get ());
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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.get (), &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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htab_t table = flags->local_typedefs->m_table.get ();
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found = (struct decl_field *) htab_find (table, &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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current_language->print_typedef (type, newobj, stream);
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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. */
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static void
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whatis_exp (const char *exp, int show)
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{
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struct value *val;
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struct type *real_type = NULL;
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struct type *type;
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int full = 0;
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LONGEST top = -1;
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int using_enc = 0;
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struct value_print_options opts;
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struct type_print_options flags = default_ptype_flags;
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if (exp)
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{
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if (*exp == '/')
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{
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int seen_one = 0;
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for (++exp; *exp && !isspace (*exp); ++exp)
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{
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switch (*exp)
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{
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case 'r':
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flags.raw = 1;
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break;
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case 'm':
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flags.print_methods = 0;
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break;
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case 'M':
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flags.print_methods = 1;
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break;
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case 't':
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flags.print_typedefs = 0;
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break;
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case 'T':
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flags.print_typedefs = 1;
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break;
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case 'o':
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{
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/* Filter out languages which don't implement the
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feature. */
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if (show > 0
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&& (current_language->la_language == language_c
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|| current_language->la_language == language_cplus
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|| current_language->la_language == language_rust))
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{
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flags.print_offsets = 1;
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flags.print_typedefs = 0;
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||
flags.print_methods = 0;
|
||
}
|
||
break;
|
||
}
|
||
case 'x':
|
||
flags.print_in_hex = 1;
|
||
break;
|
||
case 'd':
|
||
flags.print_in_hex = 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. */
|
||
val = evaluate_type (expr.get ());
|
||
type = value_type (val);
|
||
|
||
if (show == -1 && expr->first_opcode () == OP_TYPE)
|
||
{
|
||
/* The user expression names a type directly. */
|
||
|
||
/* 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_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
|
||
{
|
||
val = access_value_history (0);
|
||
type = value_type (val);
|
||
}
|
||
|
||
get_user_print_options (&opts);
|
||
if (val != NULL && opts.objectprint)
|
||
{
|
||
if (((type->code () == TYPE_CODE_PTR) || TYPE_IS_REFERENCE (type))
|
||
&& (TYPE_TARGET_TYPE (type)->code () == TYPE_CODE_STRUCT))
|
||
real_type = value_rtti_indirect_type (val, &full, &top, &using_enc);
|
||
else if (type->code () == TYPE_CODE_STRUCT)
|
||
real_type = value_rtti_type (val, &full, &top, &using_enc);
|
||
}
|
||
|
||
if (flags.print_offsets
|
||
&& (type->code () == TYPE_CODE_STRUCT
|
||
|| type->code () == 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 ())
|
||
{
|
||
|
||
case TYPE_CODE_ENUM:
|
||
len = type->num_fields ();
|
||
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->is_unsigned () ? '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_FIXED_POINT:
|
||
print_type_fixed_point (type, stream);
|
||
break;
|
||
|
||
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."));
|
||
}
|
||
}
|
||
|
||
/* See typeprint.h. */
|
||
|
||
void
|
||
print_type_fixed_point (struct type *type, struct ui_file *stream)
|
||
{
|
||
std::string small_img = type->fixed_point_scaling_factor ().str ();
|
||
|
||
fprintf_filtered (stream, "%s-byte fixed point (small = %s)",
|
||
pulongest (TYPE_LENGTH (type)), small_img.c_str ());
|
||
}
|
||
|
||
/* 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)
|
||
{
|
||
if (type_name != NULL)
|
||
{
|
||
expression_up expr = parse_expression (type_name);
|
||
struct value *val = evaluate_type (expr.get ());
|
||
struct type *type = value_type (val);
|
||
|
||
if (type != nullptr)
|
||
recursive_dump_type (type, 0);
|
||
}
|
||
}
|
||
|
||
|
||
struct cmd_list_element *setprinttypelist;
|
||
|
||
struct cmd_list_element *showprinttypelist;
|
||
|
||
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);
|
||
}
|
||
}
|
||
|
||
/* When printing structs, offsets and sizes of members can be displayed using
|
||
decimal notation or hexadecimal notation. By default, Decimal notation is
|
||
used. */
|
||
|
||
static bool print_offsets_and_sizes_in_hex = false;
|
||
|
||
/* Set the flags that instructs if sizes and offsets of struct members are
|
||
displayed in hexadecimal or decimal notation. */
|
||
|
||
static void
|
||
set_print_offsets_and_sizes_in_hex (const char *args,
|
||
int from_tty, struct cmd_list_element *c)
|
||
{
|
||
default_ptype_flags.print_in_hex = print_offsets_and_sizes_in_hex;
|
||
}
|
||
|
||
/* Display whether struct members sizes and offsets are printed
|
||
using decimal or hexadecimal notation. */
|
||
|
||
static void
|
||
show_print_offsets_and_sizes_in_hex (struct ui_file *file, int from_tty,
|
||
struct cmd_list_element *c,
|
||
const char *value)
|
||
{
|
||
fprintf_filtered (file, _("\
|
||
Display of struct members offsets and sizes in hexadecimal is %s\n"),
|
||
value);
|
||
}
|
||
|
||
void _initialize_typeprint ();
|
||
void
|
||
_initialize_typeprint ()
|
||
{
|
||
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)\n\
|
||
/x use hexadecimal notation when displaying sizes and offsets\n\
|
||
of struct members\n\
|
||
/d use decimal notation when displaying sizes and offsets\n\
|
||
of struct members "));
|
||
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_show_prefix_cmd ("type", no_class,
|
||
_("Generic command for showing type-printing settings."),
|
||
&showprinttypelist, "show print type ", 0,
|
||
&showprintlist);
|
||
add_basic_prefix_cmd ("type", no_class,
|
||
_("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);
|
||
|
||
add_setshow_boolean_cmd ("hex", no_class, &print_offsets_and_sizes_in_hex,
|
||
_("\
|
||
Set printing of struct members sizes and offsets using hex notation."), _("\
|
||
Show whether sizes and offsets of struct members are printed using hex \
|
||
notation."), nullptr, set_print_offsets_and_sizes_in_hex,
|
||
show_print_offsets_and_sizes_in_hex,
|
||
&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>"));
|
||
}
|