2001-05-22 23:02:41 +02:00
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/* Abstraction of GNU v3 abi.
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Contributed by Jim Blandy <jimb@redhat.com>
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2002-05-12 03:02:58 +02:00
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Copyright 2001, 2002 Free Software Foundation, Inc.
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2001-05-22 23:02:41 +02:00
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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
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (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, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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#include "defs.h"
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#include "value.h"
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#include "cp-abi.h"
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#include "demangle.h"
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2001-06-07 16:51:20 +02:00
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#include "gdb_assert.h"
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2002-07-30 Andrew Cagney <ac131313@redhat.com>
* symtab.h: Replace #include "gdb_obstack.h" with opaque
declaration.
* cli/cli-cmds.c, cli/cli-script.c: Include "gdb_string.h".
* gnu-v3-abi.c, arc-tdep.c, cli/cli-decode.c: Ditto.
* avr-tdep.c, mon960-rom.c, i960-tdep.c: Ditto.
* arch-utils.c, cli/cli-setshow.c: Unconditionally include
"gdb_string.h".
* Makefile.in (cli-script.o, cli-cmds.o): Update dependencies.
(gnu-v3-abi.o, cli-setshow.o, i960-tdep.o): Ditto.
(cli-decode.o, mi-cmd-var.o, mi-cmd-disas.o): Ditto.
(avr-tdep.o, mon960-rom.o): Ditto.
(aout_stabs_gnu_h): Define.
(symtab_h): Remove $(gdb_obstack_h).
2002-07-30 15:45:15 +02:00
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#include "gdb_string.h"
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2001-05-22 23:02:41 +02:00
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2001-06-02 00:22:25 +02:00
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static struct cp_abi_ops gnu_v3_abi_ops;
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2001-05-22 23:02:41 +02:00
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static int
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gnuv3_is_vtable_name (const char *name)
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{
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return strncmp (name, "_ZTV", 4) == 0;
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}
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static int
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gnuv3_is_operator_name (const char *name)
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{
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return strncmp (name, "operator", 8) == 0;
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}
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/* To help us find the components of a vtable, we build ourselves a
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GDB type object representing the vtable structure. Following the
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V3 ABI, it goes something like this:
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struct gdb_gnu_v3_abi_vtable {
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/ * An array of virtual call and virtual base offsets. The real
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length of this array depends on the class hierarchy; we use
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negative subscripts to access the elements. Yucky, but
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better than the alternatives. * /
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ptrdiff_t vcall_and_vbase_offsets[0];
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/ * The offset from a virtual pointer referring to this table
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to the top of the complete object. * /
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ptrdiff_t offset_to_top;
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/ * The type_info pointer for this class. This is really a
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std::type_info *, but GDB doesn't really look at the
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type_info object itself, so we don't bother to get the type
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exactly right. * /
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void *type_info;
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/ * Virtual table pointers in objects point here. * /
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/ * Virtual function pointers. Like the vcall/vbase array, the
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real length of this table depends on the class hierarchy. * /
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void (*virtual_functions[0]) ();
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};
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The catch, of course, is that the exact layout of this table
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depends on the ABI --- word size, endianness, alignment, etc. So
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the GDB type object is actually a per-architecture kind of thing.
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vtable_type_gdbarch_data is a gdbarch per-architecture data pointer
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which refers to the struct type * for this structure, laid out
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appropriately for the architecture. */
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2001-06-02 00:22:25 +02:00
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static struct gdbarch_data *vtable_type_gdbarch_data;
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2001-05-22 23:02:41 +02:00
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/* Human-readable names for the numbers of the fields above. */
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enum {
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vtable_field_vcall_and_vbase_offsets,
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vtable_field_offset_to_top,
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vtable_field_type_info,
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vtable_field_virtual_functions
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};
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/* Return a GDB type representing `struct gdb_gnu_v3_abi_vtable',
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described above, laid out appropriately for ARCH.
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We use this function as the gdbarch per-architecture data
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initialization function. We assume that the gdbarch framework
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calls the per-architecture data initialization functions after it
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sets current_gdbarch to the new architecture. */
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static void *
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build_gdb_vtable_type (struct gdbarch *arch)
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{
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struct type *t;
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struct field *field_list, *field;
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int offset;
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struct type *void_ptr_type
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= lookup_pointer_type (builtin_type_void);
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struct type *ptr_to_void_fn_type
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= lookup_pointer_type (lookup_function_type (builtin_type_void));
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/* ARCH can't give us the true ptrdiff_t type, so we guess. */
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struct type *ptrdiff_type
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= init_type (TYPE_CODE_INT, TARGET_PTR_BIT / TARGET_CHAR_BIT, 0,
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"ptrdiff_t", 0);
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/* We assume no padding is necessary, since GDB doesn't know
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anything about alignment at the moment. If this assumption bites
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us, we should add a gdbarch method which, given a type, returns
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the alignment that type requires, and then use that here. */
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/* Build the field list. */
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field_list = xmalloc (sizeof (struct field [4]));
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memset (field_list, 0, sizeof (struct field [4]));
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field = &field_list[0];
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offset = 0;
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/* ptrdiff_t vcall_and_vbase_offsets[0]; */
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FIELD_NAME (*field) = "vcall_and_vbase_offsets";
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FIELD_TYPE (*field)
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= create_array_type (0, ptrdiff_type,
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create_range_type (0, builtin_type_int, 0, -1));
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FIELD_BITPOS (*field) = offset * TARGET_CHAR_BIT;
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offset += TYPE_LENGTH (FIELD_TYPE (*field));
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field++;
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/* ptrdiff_t offset_to_top; */
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FIELD_NAME (*field) = "offset_to_top";
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FIELD_TYPE (*field) = ptrdiff_type;
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FIELD_BITPOS (*field) = offset * TARGET_CHAR_BIT;
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offset += TYPE_LENGTH (FIELD_TYPE (*field));
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field++;
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/* void *type_info; */
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FIELD_NAME (*field) = "type_info";
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FIELD_TYPE (*field) = void_ptr_type;
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FIELD_BITPOS (*field) = offset * TARGET_CHAR_BIT;
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offset += TYPE_LENGTH (FIELD_TYPE (*field));
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field++;
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/* void (*virtual_functions[0]) (); */
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FIELD_NAME (*field) = "virtual_functions";
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FIELD_TYPE (*field)
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= create_array_type (0, ptr_to_void_fn_type,
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create_range_type (0, builtin_type_int, 0, -1));
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FIELD_BITPOS (*field) = offset * TARGET_CHAR_BIT;
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offset += TYPE_LENGTH (FIELD_TYPE (*field));
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field++;
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/* We assumed in the allocation above that there were four fields. */
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2001-06-07 16:51:20 +02:00
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gdb_assert (field == (field_list + 4));
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2001-05-22 23:02:41 +02:00
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t = init_type (TYPE_CODE_STRUCT, offset, 0, 0, 0);
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TYPE_NFIELDS (t) = field - field_list;
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TYPE_FIELDS (t) = field_list;
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TYPE_TAG_NAME (t) = "gdb_gnu_v3_abi_vtable";
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return t;
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}
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/* Return the offset from the start of the imaginary `struct
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gdb_gnu_v3_abi_vtable' object to the vtable's "address point"
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(i.e., where objects' virtual table pointers point). */
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static int
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2002-07-11 15:50:50 +02:00
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vtable_address_point_offset (void)
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2001-05-22 23:02:41 +02:00
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{
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2002-05-12 03:02:58 +02:00
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struct type *vtable_type = gdbarch_data (current_gdbarch,
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vtable_type_gdbarch_data);
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2001-05-22 23:02:41 +02:00
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return (TYPE_FIELD_BITPOS (vtable_type, vtable_field_virtual_functions)
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/ TARGET_CHAR_BIT);
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}
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static struct type *
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gnuv3_rtti_type (struct value *value,
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int *full_p, int *top_p, int *using_enc_p)
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{
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2002-05-12 03:02:58 +02:00
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struct type *vtable_type = gdbarch_data (current_gdbarch,
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vtable_type_gdbarch_data);
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2001-05-22 23:02:41 +02:00
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struct type *value_type = check_typedef (VALUE_TYPE (value));
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CORE_ADDR vtable_address;
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struct value *vtable;
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struct minimal_symbol *vtable_symbol;
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const char *vtable_symbol_name;
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const char *class_name;
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struct symbol *class_symbol;
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struct type *run_time_type;
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2001-11-30 18:47:51 +01:00
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struct type *base_type;
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2001-05-22 23:02:41 +02:00
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LONGEST offset_to_top;
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/* We only have RTTI for class objects. */
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if (TYPE_CODE (value_type) != TYPE_CODE_CLASS)
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return NULL;
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/* If we can't find the virtual table pointer for value_type, we
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can't find the RTTI. */
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fill_in_vptr_fieldno (value_type);
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if (TYPE_VPTR_FIELDNO (value_type) == -1)
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return NULL;
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2001-11-30 18:47:51 +01:00
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if (using_enc_p)
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*using_enc_p = 0;
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2001-05-22 23:02:41 +02:00
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/* Fetch VALUE's virtual table pointer, and tweak it to point at
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2001-11-30 18:47:51 +01:00
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an instance of our imaginary gdb_gnu_v3_abi_vtable structure. */
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base_type = check_typedef (TYPE_VPTR_BASETYPE (value_type));
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if (value_type != base_type)
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{
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value = value_cast (base_type, value);
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if (using_enc_p)
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*using_enc_p = 1;
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}
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2001-05-22 23:02:41 +02:00
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vtable_address
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* value.h (value_as_address): Rename value_as_pointer.
* eval.c, findvar.c, gnu-v2-abi.c, gnu-v3-abi.c, jv-lang.c,
jv-valprint.c, printcmd.c, stack.c, top.c, valarith.c, valops.c,
values.c: Update.
2001-10-16 03:58:07 +02:00
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= value_as_address (value_field (value, TYPE_VPTR_FIELDNO (value_type)));
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2001-05-22 23:02:41 +02:00
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vtable = value_at_lazy (vtable_type,
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vtable_address - vtable_address_point_offset (),
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VALUE_BFD_SECTION (value));
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/* Find the linker symbol for this vtable. */
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vtable_symbol
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= lookup_minimal_symbol_by_pc (VALUE_ADDRESS (vtable)
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+ VALUE_OFFSET (vtable)
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+ VALUE_EMBEDDED_OFFSET (vtable));
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if (! vtable_symbol)
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return NULL;
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/* The symbol's demangled name should be something like "vtable for
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CLASS", where CLASS is the name of the run-time type of VALUE.
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If we didn't like this approach, we could instead look in the
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type_info object itself to get the class name. But this way
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should work just as well, and doesn't read target memory. */
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vtable_symbol_name = SYMBOL_DEMANGLED_NAME (vtable_symbol);
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2002-01-20 01:09:59 +01:00
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if (vtable_symbol_name == NULL
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|| strncmp (vtable_symbol_name, "vtable for ", 11))
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2002-05-03 21:38:29 +02:00
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{
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warning ("can't find linker symbol for virtual table for `%s' value",
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TYPE_NAME (value_type));
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if (vtable_symbol_name)
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warning (" found `%s' instead", vtable_symbol_name);
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return NULL;
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}
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2001-05-22 23:02:41 +02:00
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class_name = vtable_symbol_name + 11;
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/* Try to look up the class name as a type name. */
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2003-05-14 Elena Zannoni <ezannoni@redhat.com>
* symtab.h (enum domain_enum): Rename from namespace_enum.
(UNDEF_DOMAIN, VAR_DOMAIN, STRUCT_DOMAIN, LABEL_DOMAIN,
VARIABLES_DOMAIN, FUNCTIONS_DOMAIN, TYPES_DOMAIN, METHODS_DOMAIN):
Rename from UNDEF_NAMESPACE, VAR_NAMESPACE, STRUCT_NAMESPACE,
LABEL_NAMESPACE, VARIABLES_NAMESPACE, FUNCTIONS_NAMESPACE,
TYPES_NAMESPACE, METHODS_NAMESPACE.
(SYMBOL_NAMESPACE): Rename to SYMBOL_DOMAIN.
(struct symbol, struct partial_symbol): Rename field
'namespace_enum namespace' to 'domain_enum domain'.
(PSYMBOL_NAMESPACE): Rename to PSYMBOL_DOMAIN.
Delete old define kludge for namespace.
* ada-exp.y, ada-lang.c, ada-lang.h, alpha-tdep.c, arm-tdep.c,
blockframe.c, c-exp.y, c-valprint.c, coffread.c, dbxread.c,
dwarf2read.c, dwarfread.c, f-exp.y, gdbtypes.c, gdbtypes.h,
gnu-v3-abi.c, hppa-tdep.c, hpread.c, jv-exp.y, jv-lang.c,
language.c, linespec.c, m2-exp.y, m3-nat.c, mdebugread.c,
mips-tdep.c, nlmread.c, objc-exp.y, objc-lang.c, objfiles.c,
p-exp.y, p-valprint.c, parse.c, printcmd.c, scm-lang.c, source.c,
stabsread.c, stack.c, symfile.c, symfile.h, symmisc.c, symtab.c,
valops.c, values.c, xcoffread.c, xstormy16-tdep.c: Replace all
occurrences of the above.
2003-05-12 Elena Zannoni <ezannoni@redhat.com>
* mi-mi-cmd-stack.c (list_args_or_locals): Rename VAR_NAMESPACE to
VAR_DOMAIN.
2003-05-14 19:43:20 +02:00
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class_symbol = lookup_symbol (class_name, 0, STRUCT_DOMAIN, 0, 0);
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2001-05-22 23:02:41 +02:00
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if (! class_symbol)
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2002-05-03 21:38:29 +02:00
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{
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warning ("can't find class named `%s', as given by C++ RTTI", class_name);
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return NULL;
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}
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2001-05-22 23:02:41 +02:00
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/* Make sure the type symbol is sane. (An earlier version of this
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code would find constructor functions, who have the same name as
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the class.) */
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if (SYMBOL_CLASS (class_symbol) != LOC_TYPEDEF
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|| TYPE_CODE (SYMBOL_TYPE (class_symbol)) != TYPE_CODE_CLASS)
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2002-05-03 21:38:29 +02:00
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{
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warning ("C++ RTTI gives a class name of `%s', but that isn't a type name",
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class_name);
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return NULL;
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}
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2001-05-22 23:02:41 +02:00
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/* This is the object's run-time type! */
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run_time_type = SYMBOL_TYPE (class_symbol);
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/* Get the offset from VALUE to the top of the complete object.
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NOTE: this is the reverse of the meaning of *TOP_P. */
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offset_to_top
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= value_as_long (value_field (vtable, vtable_field_offset_to_top));
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if (full_p)
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*full_p = (- offset_to_top == VALUE_EMBEDDED_OFFSET (value)
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&& (TYPE_LENGTH (VALUE_ENCLOSING_TYPE (value))
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>= TYPE_LENGTH (run_time_type)));
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|
|
if (top_p)
|
|
|
|
*top_p = - offset_to_top;
|
|
|
|
|
|
|
|
return run_time_type;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
static struct value *
|
|
|
|
gnuv3_virtual_fn_field (struct value **value_p,
|
|
|
|
struct fn_field *f, int j,
|
|
|
|
struct type *type, int offset)
|
|
|
|
{
|
2002-05-12 03:02:58 +02:00
|
|
|
struct type *vtable_type = gdbarch_data (current_gdbarch,
|
|
|
|
vtable_type_gdbarch_data);
|
2001-05-22 23:02:41 +02:00
|
|
|
struct value *value = *value_p;
|
|
|
|
struct type *value_type = check_typedef (VALUE_TYPE (value));
|
|
|
|
struct type *vfn_base;
|
|
|
|
CORE_ADDR vtable_address;
|
|
|
|
struct value *vtable;
|
|
|
|
struct value *vfn;
|
|
|
|
|
|
|
|
/* Some simple sanity checks. */
|
|
|
|
if (TYPE_CODE (value_type) != TYPE_CODE_CLASS)
|
|
|
|
error ("Only classes can have virtual functions.");
|
|
|
|
|
|
|
|
/* Find the base class that defines this virtual function. */
|
|
|
|
vfn_base = TYPE_FN_FIELD_FCONTEXT (f, j);
|
|
|
|
if (! vfn_base)
|
|
|
|
/* In programs compiled with G++ version 1, the debug info doesn't
|
|
|
|
say which base class defined the virtual function. We'll guess
|
|
|
|
it's the same base class that has our vtable; this is wrong for
|
|
|
|
multiple inheritance, but it's better than nothing. */
|
|
|
|
vfn_base = TYPE_VPTR_BASETYPE (type);
|
|
|
|
|
|
|
|
/* This type may have been defined before its virtual function table
|
|
|
|
was. If so, fill in the virtual function table entry for the
|
|
|
|
type now. */
|
|
|
|
if (TYPE_VPTR_FIELDNO (vfn_base) < 0)
|
|
|
|
fill_in_vptr_fieldno (vfn_base);
|
2002-10-03 00:01:53 +02:00
|
|
|
if (TYPE_VPTR_FIELDNO (vfn_base) < 0)
|
|
|
|
error ("Could not find virtual table pointer for class \"%s\".",
|
|
|
|
TYPE_TAG_NAME (vfn_base) ? TYPE_TAG_NAME (vfn_base) : "<unknown>");
|
2001-05-22 23:02:41 +02:00
|
|
|
|
|
|
|
/* Now that we know which base class is defining our virtual
|
|
|
|
function, cast our value to that baseclass. This takes care of
|
|
|
|
any necessary `this' adjustments. */
|
|
|
|
if (vfn_base != value_type)
|
2001-11-30 18:47:51 +01:00
|
|
|
value = value_cast (vfn_base, value);
|
2001-05-22 23:02:41 +02:00
|
|
|
|
|
|
|
/* Now value is an object of the appropriate base type. Fetch its
|
|
|
|
virtual table. */
|
2001-11-30 18:47:51 +01:00
|
|
|
/* It might be possible to do this cast at the same time as the above.
|
2002-02-02 01:04:46 +01:00
|
|
|
Does multiple inheritance affect this?
|
|
|
|
Can this even trigger, or is TYPE_VPTR_BASETYPE idempotent?
|
|
|
|
*/
|
2001-11-30 18:47:51 +01:00
|
|
|
if (TYPE_VPTR_BASETYPE (vfn_base) != vfn_base)
|
|
|
|
value = value_cast (TYPE_VPTR_BASETYPE (vfn_base), value);
|
2001-05-22 23:02:41 +02:00
|
|
|
vtable_address
|
* value.h (value_as_address): Rename value_as_pointer.
* eval.c, findvar.c, gnu-v2-abi.c, gnu-v3-abi.c, jv-lang.c,
jv-valprint.c, printcmd.c, stack.c, top.c, valarith.c, valops.c,
values.c: Update.
2001-10-16 03:58:07 +02:00
|
|
|
= value_as_address (value_field (value, TYPE_VPTR_FIELDNO (vfn_base)));
|
2001-11-30 18:47:51 +01:00
|
|
|
|
2001-05-22 23:02:41 +02:00
|
|
|
vtable = value_at_lazy (vtable_type,
|
|
|
|
vtable_address - vtable_address_point_offset (),
|
|
|
|
VALUE_BFD_SECTION (value));
|
|
|
|
|
|
|
|
/* Fetch the appropriate function pointer from the vtable. */
|
|
|
|
vfn = value_subscript (value_field (vtable, vtable_field_virtual_functions),
|
|
|
|
value_from_longest (builtin_type_int,
|
|
|
|
TYPE_FN_FIELD_VOFFSET (f, j)));
|
|
|
|
|
|
|
|
/* Cast the function pointer to the appropriate type. */
|
|
|
|
vfn = value_cast (lookup_pointer_type (TYPE_FN_FIELD_TYPE (f, j)),
|
|
|
|
vfn);
|
|
|
|
|
2002-02-02 01:04:46 +01:00
|
|
|
/* Is (type)value always numerically the same as (vfn_base)value?
|
|
|
|
If so we can spare this cast and use one of the ones above. */
|
|
|
|
*value_p = value_addr (value_cast (type, *value_p));
|
|
|
|
|
2001-05-22 23:02:41 +02:00
|
|
|
return vfn;
|
|
|
|
}
|
|
|
|
|
2002-01-04 19:20:19 +01:00
|
|
|
/* Compute the offset of the baseclass which is
|
|
|
|
the INDEXth baseclass of class TYPE,
|
|
|
|
for value at VALADDR (in host) at ADDRESS (in target).
|
|
|
|
The result is the offset of the baseclass value relative
|
|
|
|
to (the address of)(ARG) + OFFSET.
|
|
|
|
|
|
|
|
-1 is returned on error. */
|
2003-06-08 Andrew Cagney <cagney@redhat.com>
* acinclude.m4 (gcc_AC_CHECK_DECL, (gcc_AC_CHECK_DECL): Stolen
from GCC's acinclude.m4.
* configure.in: Check for getopt's delcaration.
* aclocal.m4, config.in, configure: Re-generate.
* main.c (error_init): Delete declaration.
* defs.h (error_init): Declare.
* rs6000-tdep.c (rs6000_fetch_pointer_argument): Make static.
(rs6000_convert_from_func_ptr_addr): Make static.
(_initialize_rs6000_tdep): Add declaration.
* cli/cli-cmds.c (dont_repeat): Delete declaration.
(show_commands, set_verbose, show_history): Delete declaration.
* top.h (set_verbose): Add declaration.
(show_history, set_history, show_commands): Add declaration.
(do_restore_instream_cleanup): Add declaration.
* objc-lang.c (specialcmp): Make static.
(print_object_command): Make static.
(find_objc_msgsend): Make static.
(find_objc_msgcall_submethod_helper): Make static.
(find_objc_msgcall_submethod): Make static.
(_initialize_objc_language): Add declaration.
(find_implementation_from_class): Make static.
(find_implementation): Make static.
* objc-exp.y (yylex): Delete lookup_struct_typedef declaration.
* objc-lang.h (lookup_struct_typedef): Add declaration.
* cli/cli-interp.c (_initialize_cli_interp): Add declaration.
* cli/cli-script.c (clear_hook_in_cleanup): Make static.
(do_restore_user_call_depth): Make static.
(do_restore_instream_cleanup): Delete declaration.
(dont_repeat): Delete declaration.
* cli/cli-decode.c (add_abbrev_cmd): Delete function.
* cli/cli-dump.c (_initialize_cli_dump): Add declaration.
* reggroups.c (_initialize_reggroup): Add declaration.
* cp-support.c (_initialize_cp_support): Add declaration.
* cp-abi.c (_initialize_cp_abi): Add declaration.
* hpacc-abi.c (_initialize_hpacc_abi): Add declaration.
* gnu-v3-abi.c (gnuv3_baseclass_offset): Make static.
(_initialize_gnu_v3_abi): Add declaration.
* gnu-v2-abi.c (gnuv2_value_rtti_type): Make static.
(_initialize_gnu_v2_abi): Add declaration.
* frame-base.c (_initialize_frame_base): Add declaration.
* doublest.c (floatformat_from_length): Make static.
* frame-unwind.c (_initialize_frame_unwind): Add declaration.
* frame.c (create_sentinel_frame): Make static.
(_initialize_frame): Add declaration.
* top.c (do_catch_errors): Make static.
(gdb_rl_operate_and_get_next_completion): Make static.
* typeprint.c: Include "typeprint.h".
* sentinel-frame.c (sentinel_frame_prev_register): Make static.
(sentinel_frame_this_id): Make static.
* p-valprint.c (_initialize_pascal_valprint): Add declaration.
* ui-out.c (make_cleanup_ui_out_begin_end): Delete function.
* dwarf2-frame.c (dwarf2_frame_cache): Make static.
* p-exp.y (push_current_type, pop_current_type): ISO C declaration.
* dwarf2expr.h (dwarf_expr_context): ISO C declaration.
* maint.c (maintenance_print_architecture): Make static.
* signals/signals.c (_initialize_signals): Add declaration.
* std-regs.c (_initialize_frame_reg): Add declaration.
* jv-exp.y (push_variable): ISO C definition.
(push_qualified_expression_name): Ditto.
* memattr.c (_initialize_mem): Add declaration.
* remote.c (remote_check_watch_resources): Make static.
(remote_stopped_by_watchpoint): Make static.
(remote_stopped_data_address): Make static.
* d10v-tdep.c (nr_dmap_regs): Make static.
(a0_regnum): Make static.
(d10v_frame_unwind_cache): Make static.
(d10v_frame_p): Make static.
* osabi.c (show_osabi): Make static.
(_initialize_gdb_osabi): Add extern declaration.
* gdbtypes.c (make_qualified_type): Make static.
(safe_parse_type): Make static.
* macrocmd.c (_initialize_macrocmd): Add extern declaration.
* macrotab.c (macro_bcache_free): Make static.
* interps.c (interp_set_quiet): Make static.
(interpreter_exec_cmd): Make static.
* stack.h (select_frame_command): New file.
* stack.c: Include "stack.h".
(select_frame_command_wrapper): Delete function.
(select_frame_command): Make global.
* infcall.c: Include "infcall.h".
* linespec.c: Include "linespec.h".
* symfile.c (sections_overlap): Make static.
* cp-support.h (cp_initialize_namespace): ISO C declaration.
* charset.c (_initialize_charset): Add missing prototype.
* regcache.c (init_legacy_regcache_descr): Make static.
(do_regcache_xfree): Make static.
(regcache_xfer_part): Make static.
(_initialize_regcache): Add missing prototype.
* breakpoint.c (parse_breakpoint_sals): Make static.
(breakpoint_sals_to_pc): Make static.
* interps.h (clear_interpreter_hooks): ISO C declaration.
* Makefile.in (stack_h): Define.
(stack.o, typeprint.o, mi-main.o): Update dependencies.
(mi-cmd-stack.o, infcall.o, linespec.o): Update dependencies.
Index: mi/ChangeLog
2003-06-08 Andrew Cagney <cagney@redhat.com>
* mi-parse.c (_initialize_mi_parse): Delete function.
* mi-main.c: Include "mi-main.h".
* mi-interp.c (_initialize_mi_interp): Add declaration.
* mi-cmd-stack.c: Include "stack.h".
(select_frame_command_wrapper): Delete extern declaration.
(mi_cmd_stack_select_frame): Replace select_frame_command_wrapper
with select_frame_command.
2003-06-08 20:27:14 +02:00
|
|
|
static int
|
2002-01-04 19:20:19 +01:00
|
|
|
gnuv3_baseclass_offset (struct type *type, int index, char *valaddr,
|
|
|
|
CORE_ADDR address)
|
|
|
|
{
|
2002-05-12 03:02:58 +02:00
|
|
|
struct type *vtable_type = gdbarch_data (current_gdbarch,
|
|
|
|
vtable_type_gdbarch_data);
|
2002-07-05 18:23:13 +02:00
|
|
|
struct value *vtable;
|
|
|
|
struct type *vbasetype;
|
2002-01-04 19:20:19 +01:00
|
|
|
struct value *offset_val, *vbase_array;
|
|
|
|
CORE_ADDR vtable_address;
|
|
|
|
long int cur_base_offset, base_offset;
|
|
|
|
|
|
|
|
/* If it isn't a virtual base, this is easy. The offset is in the
|
|
|
|
type definition. */
|
|
|
|
if (!BASETYPE_VIA_VIRTUAL (type, index))
|
|
|
|
return TYPE_BASECLASS_BITPOS (type, index) / 8;
|
|
|
|
|
|
|
|
/* To access a virtual base, we need to use the vbase offset stored in
|
|
|
|
our vtable. Recent GCC versions provide this information. If it isn't
|
|
|
|
available, we could get what we needed from RTTI, or from drawing the
|
|
|
|
complete inheritance graph based on the debug info. Neither is
|
|
|
|
worthwhile. */
|
|
|
|
cur_base_offset = TYPE_BASECLASS_BITPOS (type, index) / 8;
|
|
|
|
if (cur_base_offset >= - vtable_address_point_offset ())
|
|
|
|
error ("Expected a negative vbase offset (old compiler?)");
|
|
|
|
|
|
|
|
cur_base_offset = cur_base_offset + vtable_address_point_offset ();
|
|
|
|
if ((- cur_base_offset) % TYPE_LENGTH (builtin_type_void_data_ptr) != 0)
|
|
|
|
error ("Misaligned vbase offset.");
|
|
|
|
cur_base_offset = cur_base_offset
|
|
|
|
/ ((int) TYPE_LENGTH (builtin_type_void_data_ptr));
|
|
|
|
|
|
|
|
/* We're now looking for the cur_base_offset'th entry (negative index)
|
2002-07-05 18:23:13 +02:00
|
|
|
in the vcall_and_vbase_offsets array. We used to cast the object to
|
|
|
|
its TYPE_VPTR_BASETYPE, and reference the vtable as TYPE_VPTR_FIELDNO;
|
|
|
|
however, that cast can not be done without calling baseclass_offset again
|
|
|
|
if the TYPE_VPTR_BASETYPE is a virtual base class, as described in the
|
|
|
|
v3 C++ ABI Section 2.4.I.2.b. Fortunately the ABI guarantees that the
|
|
|
|
vtable pointer will be located at the beginning of the object, so we can
|
|
|
|
bypass the casting. Verify that the TYPE_VPTR_FIELDNO is in fact at the
|
|
|
|
start of whichever baseclass it resides in, as a sanity measure. */
|
|
|
|
|
|
|
|
vbasetype = TYPE_VPTR_BASETYPE (type);
|
|
|
|
if (TYPE_FIELD_BITPOS (vbasetype, TYPE_VPTR_FIELDNO (vbasetype)) != 0)
|
|
|
|
error ("Illegal vptr offset in class %s",
|
|
|
|
TYPE_NAME (vbasetype) ? TYPE_NAME (vbasetype) : "<unknown>");
|
|
|
|
|
|
|
|
vtable_address = value_as_address (value_at_lazy (builtin_type_void_data_ptr,
|
|
|
|
address, NULL));
|
2002-01-04 19:20:19 +01:00
|
|
|
vtable = value_at_lazy (vtable_type,
|
|
|
|
vtable_address - vtable_address_point_offset (),
|
|
|
|
NULL);
|
|
|
|
offset_val = value_from_longest(builtin_type_int, cur_base_offset);
|
|
|
|
vbase_array = value_field (vtable, vtable_field_vcall_and_vbase_offsets);
|
|
|
|
base_offset = value_as_long (value_subscript (vbase_array, offset_val));
|
|
|
|
return base_offset;
|
|
|
|
}
|
2001-05-22 23:02:41 +02:00
|
|
|
|
|
|
|
static void
|
|
|
|
init_gnuv3_ops (void)
|
|
|
|
{
|
2003-08-05 00:24:44 +02:00
|
|
|
vtable_type_gdbarch_data = register_gdbarch_data (build_gdb_vtable_type);
|
2001-05-22 23:02:41 +02:00
|
|
|
|
|
|
|
gnu_v3_abi_ops.shortname = "gnu-v3";
|
|
|
|
gnu_v3_abi_ops.longname = "GNU G++ Version 3 ABI";
|
|
|
|
gnu_v3_abi_ops.doc = "G++ Version 3 ABI";
|
|
|
|
gnu_v3_abi_ops.is_destructor_name = is_gnu_v3_mangled_dtor;
|
|
|
|
gnu_v3_abi_ops.is_constructor_name = is_gnu_v3_mangled_ctor;
|
|
|
|
gnu_v3_abi_ops.is_vtable_name = gnuv3_is_vtable_name;
|
|
|
|
gnu_v3_abi_ops.is_operator_name = gnuv3_is_operator_name;
|
|
|
|
gnu_v3_abi_ops.rtti_type = gnuv3_rtti_type;
|
|
|
|
gnu_v3_abi_ops.virtual_fn_field = gnuv3_virtual_fn_field;
|
2002-01-04 19:20:19 +01:00
|
|
|
gnu_v3_abi_ops.baseclass_offset = gnuv3_baseclass_offset;
|
2001-05-22 23:02:41 +02:00
|
|
|
}
|
|
|
|
|
2003-06-08 Andrew Cagney <cagney@redhat.com>
* acinclude.m4 (gcc_AC_CHECK_DECL, (gcc_AC_CHECK_DECL): Stolen
from GCC's acinclude.m4.
* configure.in: Check for getopt's delcaration.
* aclocal.m4, config.in, configure: Re-generate.
* main.c (error_init): Delete declaration.
* defs.h (error_init): Declare.
* rs6000-tdep.c (rs6000_fetch_pointer_argument): Make static.
(rs6000_convert_from_func_ptr_addr): Make static.
(_initialize_rs6000_tdep): Add declaration.
* cli/cli-cmds.c (dont_repeat): Delete declaration.
(show_commands, set_verbose, show_history): Delete declaration.
* top.h (set_verbose): Add declaration.
(show_history, set_history, show_commands): Add declaration.
(do_restore_instream_cleanup): Add declaration.
* objc-lang.c (specialcmp): Make static.
(print_object_command): Make static.
(find_objc_msgsend): Make static.
(find_objc_msgcall_submethod_helper): Make static.
(find_objc_msgcall_submethod): Make static.
(_initialize_objc_language): Add declaration.
(find_implementation_from_class): Make static.
(find_implementation): Make static.
* objc-exp.y (yylex): Delete lookup_struct_typedef declaration.
* objc-lang.h (lookup_struct_typedef): Add declaration.
* cli/cli-interp.c (_initialize_cli_interp): Add declaration.
* cli/cli-script.c (clear_hook_in_cleanup): Make static.
(do_restore_user_call_depth): Make static.
(do_restore_instream_cleanup): Delete declaration.
(dont_repeat): Delete declaration.
* cli/cli-decode.c (add_abbrev_cmd): Delete function.
* cli/cli-dump.c (_initialize_cli_dump): Add declaration.
* reggroups.c (_initialize_reggroup): Add declaration.
* cp-support.c (_initialize_cp_support): Add declaration.
* cp-abi.c (_initialize_cp_abi): Add declaration.
* hpacc-abi.c (_initialize_hpacc_abi): Add declaration.
* gnu-v3-abi.c (gnuv3_baseclass_offset): Make static.
(_initialize_gnu_v3_abi): Add declaration.
* gnu-v2-abi.c (gnuv2_value_rtti_type): Make static.
(_initialize_gnu_v2_abi): Add declaration.
* frame-base.c (_initialize_frame_base): Add declaration.
* doublest.c (floatformat_from_length): Make static.
* frame-unwind.c (_initialize_frame_unwind): Add declaration.
* frame.c (create_sentinel_frame): Make static.
(_initialize_frame): Add declaration.
* top.c (do_catch_errors): Make static.
(gdb_rl_operate_and_get_next_completion): Make static.
* typeprint.c: Include "typeprint.h".
* sentinel-frame.c (sentinel_frame_prev_register): Make static.
(sentinel_frame_this_id): Make static.
* p-valprint.c (_initialize_pascal_valprint): Add declaration.
* ui-out.c (make_cleanup_ui_out_begin_end): Delete function.
* dwarf2-frame.c (dwarf2_frame_cache): Make static.
* p-exp.y (push_current_type, pop_current_type): ISO C declaration.
* dwarf2expr.h (dwarf_expr_context): ISO C declaration.
* maint.c (maintenance_print_architecture): Make static.
* signals/signals.c (_initialize_signals): Add declaration.
* std-regs.c (_initialize_frame_reg): Add declaration.
* jv-exp.y (push_variable): ISO C definition.
(push_qualified_expression_name): Ditto.
* memattr.c (_initialize_mem): Add declaration.
* remote.c (remote_check_watch_resources): Make static.
(remote_stopped_by_watchpoint): Make static.
(remote_stopped_data_address): Make static.
* d10v-tdep.c (nr_dmap_regs): Make static.
(a0_regnum): Make static.
(d10v_frame_unwind_cache): Make static.
(d10v_frame_p): Make static.
* osabi.c (show_osabi): Make static.
(_initialize_gdb_osabi): Add extern declaration.
* gdbtypes.c (make_qualified_type): Make static.
(safe_parse_type): Make static.
* macrocmd.c (_initialize_macrocmd): Add extern declaration.
* macrotab.c (macro_bcache_free): Make static.
* interps.c (interp_set_quiet): Make static.
(interpreter_exec_cmd): Make static.
* stack.h (select_frame_command): New file.
* stack.c: Include "stack.h".
(select_frame_command_wrapper): Delete function.
(select_frame_command): Make global.
* infcall.c: Include "infcall.h".
* linespec.c: Include "linespec.h".
* symfile.c (sections_overlap): Make static.
* cp-support.h (cp_initialize_namespace): ISO C declaration.
* charset.c (_initialize_charset): Add missing prototype.
* regcache.c (init_legacy_regcache_descr): Make static.
(do_regcache_xfree): Make static.
(regcache_xfer_part): Make static.
(_initialize_regcache): Add missing prototype.
* breakpoint.c (parse_breakpoint_sals): Make static.
(breakpoint_sals_to_pc): Make static.
* interps.h (clear_interpreter_hooks): ISO C declaration.
* Makefile.in (stack_h): Define.
(stack.o, typeprint.o, mi-main.o): Update dependencies.
(mi-cmd-stack.o, infcall.o, linespec.o): Update dependencies.
Index: mi/ChangeLog
2003-06-08 Andrew Cagney <cagney@redhat.com>
* mi-parse.c (_initialize_mi_parse): Delete function.
* mi-main.c: Include "mi-main.h".
* mi-interp.c (_initialize_mi_interp): Add declaration.
* mi-cmd-stack.c: Include "stack.h".
(select_frame_command_wrapper): Delete extern declaration.
(mi_cmd_stack_select_frame): Replace select_frame_command_wrapper
with select_frame_command.
2003-06-08 20:27:14 +02:00
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extern initialize_file_ftype _initialize_gnu_v3_abi; /* -Wmissing-prototypes */
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2001-05-22 23:02:41 +02:00
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void
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_initialize_gnu_v3_abi (void)
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{
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init_gnuv3_ops ();
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* cp-abi.c: Include "command.h", "gdbcmd.h", and "ui-out.h".
(auto_cp_abi): New variable.
(current_cp_abi, num_cp_abis): Make static.
(CP_ABI_MAX): Define.
(cp_abis): Turn into an array.
(value_virtual_fn_field): Fix formatting.
(switch_to_cp_abi, register_cp_abi): Update. register_cp_abi now
takes a pointer.
(set_cp_abi_as_auto_default, set_cp_abi_cmd, show_cp_abi_cmd)
(list_cp_abis, _initialize_cp_abi): New functions.
* cp-abi.h: Add prototype for set_cp_abi_as_auto_default. Remove
declarations for cp_abis, num_cp_abis, current_cp_abi, and
switch_to_cp_abi. Update prototype for register_cp_abi.
* Makefile.in (cp-abi.o): Update dependencies.
* minsyms.c (install_minimal_symbols): Call set_cp_abi_as_auto_default
instead of switch_to_cp_abi.
* gnu-v2-abi.c (_initialize_gnu_v2_abi): Likewise. Update call to
register_cp_abi.
* gnu-v3-abi.c (_initialize_gnu_v3_abi): Update call to
register_cp_abi.
* hpacc-abi.c (_initialize_hpacc_abi): Likewise.
2003-03-05 19:01:46 +01:00
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register_cp_abi (&gnu_v3_abi_ops);
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2001-05-22 23:02:41 +02:00
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}
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