mirror of
https://sourceware.org/git/binutils-gdb.git
synced 2024-12-15 04:31:49 +08:00
46a4882b3c
An earlier commit made GDB no longer assume no-debug-info functions
return int. This commit gives the same treatment to variables.
Currently, you can end misled by GDB over output like this:
(gdb) p var
$1 = -1
(gdb) p /x var
$2 = 0xffffffff
until you realize that GDB is assuming that the variable is an "int",
because:
(gdb) ptype var
type = <data variable, no debug info>
You may try to fix it by casting, but that doesn't really help:
(gdb) p /x (unsigned long long) var
$3 = 0xffffffffffffffff # incorrect
^^
That's incorrect output, because the variable was defined like this:
uint64_t var = 0x7fffffffffffffff;
^^
What happened is that with the cast, GDB did an int -> 'unsigned long
long' conversion instead of reinterpreting the variable as the cast-to
type. To get at the variable properly you have to reinterpret the
variable's address manually instead, with either:
(gdb) p /x *(unsigned long long *) &var
$4 = 0x7fffffffffffffff
(gdb) p /x {unsigned long long} &var
$5 = 0x7fffffffffffffff
After this commit GDB does it for you. This is what you'll get
instead:
(gdb) p var
'var' has unknown type; cast it to its declared type
(gdb) p /x (unsigned long long) var
$1 = 0x7fffffffffffffff
As in the functions patch, the "compile" machinery doesn't currently
have the cast-to type handy, so it continues assuming no-debug
variables have int type, though now at least it warns.
The change to gdb.cp/m-static.exp deserves an explanation:
- gdb_test "print 'gnu_obj_1::method()::sintvar'" "\\$\[0-9\]+ = 4" \
+ gdb_test "print (int) 'gnu_obj_1::method()::sintvar'" "\\$\[0-9\]+ = 4" \
That's printing the "sintvar" function local static of the
"gnu_obj_1::method()" method.
The problem with that test is that that "'S::method()::static_var'"
syntax doesn't really work in C++ as you'd expect. The way to make it
work correctly currently is to quote the method part, not the whole
expression, like:
(gdb) print 'gnu_obj_1::method()'::sintvar
If you wrap the whole expression in quotes, like in m-static.exp, what
really happens is that the parser considers the whole string as a
symbol name, but there's no debug symbol with that name. However,
local statics have linkage and are given a mangled name that demangles
to the same string as the full expression, so that's what GDB prints.
After this commit, and without the cast, the print in m-static.exp
would error out saying that the variable has unknown type:
(gdb) p 'gnu_obj_1::method()::sintvar'
'gnu_obj_1::method()::sintvar' has unknown type; cast it to its declared type
TBC, if currently (even before this series) you try to print any
function local static variable of type other than int, you'll get
bogus results. You can see that with m-static.cc as is, even.
Printing the "svar" local, which is a boolean (1 byte) still prints as
"int" (4 bytes):
(gdb) p 'gnu_obj_1::method()::svar'
$1 = 1
(gdb) ptype 'gnu_obj_1::method()::svar'
type = <data variable, no debug info>
This probably prints some random bogus value on big endian machines.
If 'svar' was of some aggregate type (etc.) we'd still print it as
int, so the problem would have been more obvious... After this
commit, you'll get instead:
(gdb) p 'gnu_obj_1::method()::svar'
'gnu_obj_1::method()::svar' has unknown type; cast it to its declared type
... so at least GDB is no longer misleading. Making GDB find the real
local static debug symbol is the subject of the following patches. In
the end, it'll all "Just Work".
gdb/ChangeLog:
2017-09-04 Pedro Alves <palves@redhat.com>
* ax-gdb.c: Include "typeprint.h".
(gen_expr_for_cast): New function.
(gen_expr) <OP_CAST, OP_CAST_TYPE>: Use it.
<OP_VAR_VALUE, OP_MSYM_VAR_VALUE>: Error out if the variable's
type is unknown.
* dwarf2read.c (new_symbol_full): Fallback to int instead of
nodebug_data_symbol.
* eval.c: Include "typeprint.h".
(evaluate_subexp_standard) <OP_VAR_VALUE, OP_VAR_MSYM_VALUE>:
Error out if symbol has unknown type.
<UNOP_CAST, UNOP_CAST_TYPE>: Common bits factored out to
evaluate_subexp_for_cast.
(evaluate_subexp_for_address, evaluate_subexp_for_sizeof): Handle
OP_VAR_MSYM_VALUE.
(evaluate_subexp_for_cast): New function.
* gdbtypes.c (init_nodebug_var_type): New function.
(objfile_type): Use it to initialize types of variables with no
debug info.
* typeprint.c (error_unknown_type): New.
* typeprint.h (error_unknown_type): New declaration.
* compile/compile-c-types.c (convert_type_basic): Handle
TYPE_CODE_ERROR; warn and fallback to int for variables with
unknown type.
gdb/testsuite/ChangeLog:
2017-09-04 Pedro Alves <palves@redhat.com>
* gdb.asm/asm-source.exp: Add casts to int.
* gdb.base/nodebug.c (dataglobal8, dataglobal32_1, dataglobal32_2)
(dataglobal64_1, dataglobal64_2): New globals.
* gdb.base/nodebug.exp: Test different expressions involving the
new globals, with print, whatis and ptype. Add casts to int.
* gdb.base/solib-display.exp: Add casts to int.
* gdb.compile/compile-ifunc.exp: Expect warning. Add cast to int.
* gdb.cp/m-static.exp: Add cast to int.
* gdb.dwarf2/dw2-skip-prologue.exp: Add cast to int.
* gdb.threads/tls-nodebug.exp: Check that gdb errors out printing
tls variable with no debug info without a cast. Test with a cast
to int too.
* gdb.trace/entry-values.exp: Add casts.
777 lines
20 KiB
C
777 lines
20 KiB
C
/* Language independent support for printing types for GDB, the GNU debugger.
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Copyright (C) 1986-2017 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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extern void _initialize_typeprint (void);
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static void ptype_command (char *, int);
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static void whatis_command (char *, int);
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static void whatis_exp (char *, int);
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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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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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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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/* A hash table holding typedef_field objects. This is more
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complicated than an ordinary hash because it must also track the
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lifetime of some -- but not all -- of the contained objects. */
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struct typedef_hash_table
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{
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/* The actual hash table. */
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htab_t table;
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/* Storage for typedef_field objects that must be synthesized. */
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struct obstack storage;
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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 typedef_field *tf = (const struct typedef_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 typedef_field *tfa = (const struct typedef_field *) a;
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const struct typedef_field *tfb = (const struct typedef_field *) b;
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return types_equal (tfa->type, tfb->type);
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}
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/* Add typedefs from T to the hash table TABLE. */
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void
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recursively_update_typedef_hash (struct typedef_hash_table *table,
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struct type *t)
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{
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int i;
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if (table == NULL)
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return;
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for (i = 0; i < TYPE_TYPEDEF_FIELD_COUNT (t); ++i)
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{
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struct typedef_field *tdef = &TYPE_TYPEDEF_FIELD (t, i);
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void **slot;
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slot = htab_find_slot (table->table, tdef, INSERT);
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/* Only add a given typedef name once. Really this shouldn't
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happen; but it is safe enough to do the updates breadth-first
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and thus use the most specific typedef. */
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if (*slot == NULL)
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*slot = tdef;
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}
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/* Recurse into superclasses. */
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for (i = 0; i < TYPE_N_BASECLASSES (t); ++i)
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recursively_update_typedef_hash (table, TYPE_BASECLASS (t, i));
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}
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/* Add template parameters from T to the typedef hash TABLE. */
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void
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add_template_parameters (struct typedef_hash_table *table, struct type *t)
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{
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int i;
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if (table == NULL)
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return;
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for (i = 0; i < TYPE_N_TEMPLATE_ARGUMENTS (t); ++i)
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{
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struct typedef_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 (&table->storage, struct typedef_field);
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tf->name = SYMBOL_LINKAGE_NAME (TYPE_TEMPLATE_ARGUMENT (t, i));
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tf->type = SYMBOL_TYPE (TYPE_TEMPLATE_ARGUMENT (t, i));
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slot = htab_find_slot (table->table, tf, INSERT);
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if (*slot == NULL)
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*slot = tf;
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}
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}
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/* Create a new typedef-lookup hash table. */
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struct typedef_hash_table *
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create_typedef_hash (void)
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{
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struct typedef_hash_table *result;
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result = XNEW (struct typedef_hash_table);
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result->table = htab_create_alloc (10, hash_typedef_field, eq_typedef_field,
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NULL, xcalloc, xfree);
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obstack_init (&result->storage);
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return result;
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}
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/* Free a typedef field table. */
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void
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free_typedef_hash (struct typedef_hash_table *table)
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{
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if (table != NULL)
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{
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htab_delete (table->table);
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obstack_free (&table->storage, NULL);
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xfree (table);
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}
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}
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/* A cleanup for freeing a typedef_hash_table. */
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static void
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do_free_typedef_hash (void *arg)
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{
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free_typedef_hash ((struct typedef_hash_table *) arg);
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}
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/* Return a new cleanup that frees TABLE. */
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struct cleanup *
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make_cleanup_free_typedef_hash (struct typedef_hash_table *table)
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{
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return make_cleanup (do_free_typedef_hash, table);
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}
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/* Helper function for copy_typedef_hash. */
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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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/* Copy a typedef hash. */
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struct typedef_hash_table *
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copy_typedef_hash (struct typedef_hash_table *table)
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{
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struct typedef_hash_table *result;
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if (table == NULL)
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return NULL;
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result = create_typedef_hash ();
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htab_traverse_noresize (table->table, copy_typedef_hash_element,
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result->table);
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return result;
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}
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/* A cleanup to free the global typedef hash. */
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static void
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do_free_global_table (void *arg)
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{
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struct type_print_options *flags = (struct type_print_options *) arg;
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free_typedef_hash (flags->global_typedefs);
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free_ext_lang_type_printers (flags->global_printers);
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}
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/* Create the global typedef hash. */
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static struct cleanup *
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create_global_typedef_table (struct type_print_options *flags)
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{
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gdb_assert (flags->global_typedefs == NULL && flags->global_printers == NULL);
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flags->global_typedefs = create_typedef_hash ();
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flags->global_printers = start_ext_lang_type_printers ();
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return make_cleanup (do_free_global_table, flags);
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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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static const char *
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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 typedef_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->table, &tf, INSERT);
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if (*slot != NULL)
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{
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new_tf = (struct typedef_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->storage, struct typedef_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
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= (const char *) obstack_copy0 (&flags->global_typedefs->storage,
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applied, strlen (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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/* Look up the type T in the typedef hash table in with FLAGS. If T
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is in the table, return its short (class-relative) typedef name.
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Otherwise return NULL. If the table is NULL, this always returns
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NULL. */
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const char *
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find_typedef_in_hash (const struct type_print_options *flags, 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 typedef_field tf, *found;
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tf.name = NULL;
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tf.type = t;
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found = (struct typedef_field *) htab_find (flags->local_typedefs->table,
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&tf);
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if (found != NULL)
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return found->name;
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}
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return find_global_typedef (flags, t);
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}
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/* Print a description of a type in the format of a
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typedef for the current language.
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NEW is the new name for a type TYPE. */
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void
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typedef_print (struct type *type, struct symbol *newobj, struct ui_file *stream)
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{
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LA_PRINT_TYPEDEF (type, newobj, stream);
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}
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/* The default way to print a typedef. */
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void
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default_print_typedef (struct type *type, struct symbol *new_symbol,
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struct ui_file *stream)
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{
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error (_("Language not supported."));
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}
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/* Print a description of a type TYPE in the form of a declaration of a
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variable named VARSTRING. (VARSTRING is demangled if necessary.)
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Output goes to STREAM (via stdio).
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If SHOW is positive, we show the contents of the outermost level
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of structure even if there is a type name that could be used instead.
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If SHOW is negative, we never show the details of elements' types. */
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void
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type_print (struct type *type, const char *varstring, struct ui_file *stream,
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int show)
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{
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LA_PRINT_TYPE (type, varstring, stream, show, 0, &default_ptype_flags);
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}
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/* Print TYPE to a string, returning it. The caller is responsible for
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freeing the string. */
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std::string
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type_to_string (struct type *type)
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{
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TRY
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{
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string_file stb;
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type_print (type, "", &stb, -1);
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return std::move (stb.string ());
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}
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CATCH (except, RETURN_MASK_ALL)
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{
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}
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END_CATCH
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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_filtered (stream, _("<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 (char *exp, int show)
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{
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struct value *val;
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struct cleanup *old_chain;
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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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old_chain = make_cleanup (null_cleanup, NULL);
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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;
|
||
break;
|
||
default:
|
||
error (_("unrecognized flag '%c'"), *exp);
|
||
}
|
||
seen_one = 1;
|
||
}
|
||
|
||
if (!*exp && !seen_one)
|
||
error (_("flag expected"));
|
||
if (!isspace (*exp))
|
||
error (_("expected space after format"));
|
||
exp = skip_spaces (exp);
|
||
}
|
||
|
||
expression_up expr = parse_expression (exp);
|
||
|
||
/* The behavior of "whatis" depends on whether the user
|
||
expression names a type directly, or a language expression
|
||
(including variable names). If the former, then "whatis"
|
||
strips one level of typedefs, only. If an expression,
|
||
"whatis" prints the type of the expression without stripping
|
||
any typedef level. "ptype" always strips all levels of
|
||
typedefs. */
|
||
if (show == -1 && expr->elts[0].opcode == OP_TYPE)
|
||
{
|
||
/* The user expression names a type directly. */
|
||
type = expr->elts[1].type;
|
||
|
||
/* If this is a typedef, then find its immediate target.
|
||
Use check_typedef to resolve stubs, but ignore its result
|
||
because we do not want to dig past all typedefs. */
|
||
check_typedef (type);
|
||
if (TYPE_CODE (type) == TYPE_CODE_TYPEDEF)
|
||
type = TYPE_TARGET_TYPE (type);
|
||
}
|
||
else
|
||
{
|
||
/* The user expression names a type indirectly by naming an
|
||
object or expression of that type. Find that
|
||
indirectly-named type. */
|
||
val = evaluate_type (expr.get ());
|
||
type = value_type (val);
|
||
}
|
||
}
|
||
else
|
||
{
|
||
val = access_value_history (0);
|
||
type = value_type (val);
|
||
}
|
||
|
||
get_user_print_options (&opts);
|
||
if (opts.objectprint)
|
||
{
|
||
if (((TYPE_CODE (type) == TYPE_CODE_PTR) || TYPE_IS_REFERENCE (type))
|
||
&& (TYPE_CODE (TYPE_TARGET_TYPE (type)) == TYPE_CODE_STRUCT))
|
||
real_type = value_rtti_indirect_type (val, &full, &top, &using_enc);
|
||
else if (TYPE_CODE (type) == TYPE_CODE_STRUCT)
|
||
real_type = value_rtti_type (val, &full, &top, &using_enc);
|
||
}
|
||
|
||
printf_filtered ("type = ");
|
||
|
||
if (!flags.raw)
|
||
create_global_typedef_table (&flags);
|
||
|
||
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");
|
||
|
||
do_cleanups (old_chain);
|
||
}
|
||
|
||
static void
|
||
whatis_command (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 (char *type_name, int from_tty)
|
||
{
|
||
whatis_exp (type_name, 1);
|
||
}
|
||
|
||
/* Print integral scalar data VAL, of type TYPE, onto stdio stream STREAM.
|
||
Used to print data from type structures in a specified type. For example,
|
||
array bounds may be characters or booleans in some languages, and this
|
||
allows the ranges to be printed in their "natural" form rather than as
|
||
decimal integer values.
|
||
|
||
FIXME: This is here simply because only the type printing routines
|
||
currently use it, and it wasn't clear if it really belonged somewhere
|
||
else (like printcmd.c). There are a lot of other gdb routines that do
|
||
something similar, but they are generally concerned with printing values
|
||
that come from the inferior in target byte order and target size. */
|
||
|
||
void
|
||
print_type_scalar (struct type *type, LONGEST val, struct ui_file *stream)
|
||
{
|
||
unsigned int i;
|
||
unsigned len;
|
||
|
||
type = check_typedef (type);
|
||
|
||
switch (TYPE_CODE (type))
|
||
{
|
||
|
||
case TYPE_CODE_ENUM:
|
||
len = TYPE_NFIELDS (type);
|
||
for (i = 0; i < len; i++)
|
||
{
|
||
if (TYPE_FIELD_ENUMVAL (type, i) == val)
|
||
{
|
||
break;
|
||
}
|
||
}
|
||
if (i < len)
|
||
{
|
||
fputs_filtered (TYPE_FIELD_NAME (type, i), stream);
|
||
}
|
||
else
|
||
{
|
||
print_longest (stream, 'd', 0, val);
|
||
}
|
||
break;
|
||
|
||
case TYPE_CODE_INT:
|
||
print_longest (stream, TYPE_UNSIGNED (type) ? 'u' : 'd', 0, val);
|
||
break;
|
||
|
||
case TYPE_CODE_CHAR:
|
||
LA_PRINT_CHAR ((unsigned char) val, type, stream);
|
||
break;
|
||
|
||
case TYPE_CODE_BOOL:
|
||
fprintf_filtered (stream, val ? "TRUE" : "FALSE");
|
||
break;
|
||
|
||
case TYPE_CODE_RANGE:
|
||
print_type_scalar (TYPE_TARGET_TYPE (type), val, stream);
|
||
return;
|
||
|
||
case TYPE_CODE_UNDEF:
|
||
case TYPE_CODE_PTR:
|
||
case TYPE_CODE_ARRAY:
|
||
case TYPE_CODE_STRUCT:
|
||
case TYPE_CODE_UNION:
|
||
case TYPE_CODE_FUNC:
|
||
case TYPE_CODE_FLT:
|
||
case TYPE_CODE_VOID:
|
||
case TYPE_CODE_SET:
|
||
case TYPE_CODE_STRING:
|
||
case TYPE_CODE_ERROR:
|
||
case TYPE_CODE_MEMBERPTR:
|
||
case TYPE_CODE_METHODPTR:
|
||
case TYPE_CODE_METHOD:
|
||
case TYPE_CODE_REF:
|
||
case TYPE_CODE_RVALUE_REF:
|
||
case TYPE_CODE_NAMESPACE:
|
||
error (_("internal error: unhandled type in print_type_scalar"));
|
||
break;
|
||
|
||
default:
|
||
error (_("Invalid type code in symbol table."));
|
||
}
|
||
gdb_flush (stream);
|
||
}
|
||
|
||
/* 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 (char *type_name, int from_tty)
|
||
{
|
||
struct value *val;
|
||
struct type *type;
|
||
|
||
if (type_name != NULL)
|
||
{
|
||
expression_up expr = parse_expression (type_name);
|
||
if (expr->elts[0].opcode == OP_TYPE)
|
||
{
|
||
/* The user expression names a type directly, just use that type. */
|
||
type = expr->elts[1].type;
|
||
}
|
||
else
|
||
{
|
||
/* The user expression may name a type indirectly by naming an
|
||
object of that type. Find that indirectly named type. */
|
||
val = evaluate_type (expr.get ());
|
||
type = value_type (val);
|
||
}
|
||
if (type != NULL)
|
||
{
|
||
recursive_dump_type (type, 0);
|
||
}
|
||
}
|
||
}
|
||
|
||
|
||
struct cmd_list_element *setprinttypelist;
|
||
|
||
struct cmd_list_element *showprinttypelist;
|
||
|
||
static void
|
||
set_print_type (char *arg, int from_tty)
|
||
{
|
||
printf_unfiltered (
|
||
"\"set print type\" must be followed by the name of a subcommand.\n");
|
||
help_list (setprintlist, "set print type ", all_commands, gdb_stdout);
|
||
}
|
||
|
||
static void
|
||
show_print_type (char *args, int from_tty)
|
||
{
|
||
cmd_show_list (showprinttypelist, from_tty, "");
|
||
}
|
||
|
||
static int print_methods = 1;
|
||
|
||
static void
|
||
set_print_type_methods (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 int print_typedefs = 1;
|
||
|
||
static void
|
||
set_print_type_typedefs (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);
|
||
}
|
||
|
||
void
|
||
_initialize_typeprint (void)
|
||
{
|
||
struct cmd_list_element *c;
|
||
|
||
c = add_com ("ptype", class_vars, ptype_command, _("\
|
||
Print definition of type TYPE.\n\
|
||
Usage: ptype[/FLAGS] TYPE | EXPRESSION\n\
|
||
Argument may be any type (for example a type name defined by typedef,\n\
|
||
or \"struct STRUCT-TAG\" or \"class CLASS-NAME\" or \"union UNION-TAG\"\n\
|
||
or \"enum ENUM-TAG\") or an expression.\n\
|
||
The selected stack frame's lexical context is used to look up the name.\n\
|
||
Contrary to \"whatis\", \"ptype\" always unrolls any typedefs.\n\
|
||
\n\
|
||
Available FLAGS are:\n\
|
||
/r print in \"raw\" form; do not substitute typedefs\n\
|
||
/m do not print methods defined in a class\n\
|
||
/M print methods defined in a class\n\
|
||
/t do not print typedefs defined in a class\n\
|
||
/T print typedefs defined in a class"));
|
||
set_cmd_completer (c, expression_completer);
|
||
|
||
c = add_com ("whatis", class_vars, whatis_command,
|
||
_("Print data type of expression EXP.\n\
|
||
Only one level of typedefs is unrolled. See also \"ptype\"."));
|
||
set_cmd_completer (c, expression_completer);
|
||
|
||
add_prefix_cmd ("type", no_class, show_print_type,
|
||
_("Generic command for showing type-printing settings."),
|
||
&showprinttypelist, "show print type ", 0, &showprintlist);
|
||
add_prefix_cmd ("type", no_class, set_print_type,
|
||
_("Generic command for setting how types print."),
|
||
&setprinttypelist, "show 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);
|
||
}
|
||
|
||
/* Print <not allocated> status to stream STREAM. */
|
||
|
||
void
|
||
val_print_not_allocated (struct ui_file *stream)
|
||
{
|
||
fprintf_filtered (stream, _("<not allocated>"));
|
||
}
|
||
|
||
/* Print <not associated> status to stream STREAM. */
|
||
|
||
void
|
||
val_print_not_associated (struct ui_file *stream)
|
||
{
|
||
fprintf_filtered (stream, _("<not associated>"));
|
||
}
|