/* Generic code for supporting multiple C++ ABI's
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/* Generic code for supporting multiple C++ ABI's
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Copyright (C) 2001, 2002, 2003, 2005, 2006, 2007, 2008
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Copyright (C) 2001, 2002, 2003, 2005, 2006, 2007, 2008
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Free Software Foundation, Inc.
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Free Software Foundation, Inc.
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This file is part of GDB.
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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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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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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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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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(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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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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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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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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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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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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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "defs.h"
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#include "defs.h"
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#include "value.h"
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#include "value.h"
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#include "cp-abi.h"
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#include "cp-abi.h"
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#include "command.h"
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#include "command.h"
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#include "gdbcmd.h"
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#include "gdbcmd.h"
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#include "ui-out.h"
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#include "ui-out.h"
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#include "gdb_string.h"
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#include "gdb_string.h"
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static struct cp_abi_ops *find_cp_abi (const char *short_name);
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static struct cp_abi_ops *find_cp_abi (const char *short_name);
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static struct cp_abi_ops current_cp_abi = { "", NULL };
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static struct cp_abi_ops current_cp_abi = { "", NULL };
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static struct cp_abi_ops auto_cp_abi = { "auto", NULL };
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static struct cp_abi_ops auto_cp_abi = { "auto", NULL };
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#define CP_ABI_MAX 8
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#define CP_ABI_MAX 8
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static struct cp_abi_ops *cp_abis[CP_ABI_MAX];
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static struct cp_abi_ops *cp_abis[CP_ABI_MAX];
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static int num_cp_abis = 0;
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static int num_cp_abis = 0;
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enum ctor_kinds
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enum ctor_kinds
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is_constructor_name (const char *name)
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is_constructor_name (const char *name)
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{
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{
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if ((current_cp_abi.is_constructor_name) == NULL)
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if ((current_cp_abi.is_constructor_name) == NULL)
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error (_("ABI doesn't define required function is_constructor_name"));
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error (_("ABI doesn't define required function is_constructor_name"));
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return (*current_cp_abi.is_constructor_name) (name);
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return (*current_cp_abi.is_constructor_name) (name);
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}
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}
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enum dtor_kinds
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enum dtor_kinds
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is_destructor_name (const char *name)
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is_destructor_name (const char *name)
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{
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{
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if ((current_cp_abi.is_destructor_name) == NULL)
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if ((current_cp_abi.is_destructor_name) == NULL)
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error (_("ABI doesn't define required function is_destructor_name"));
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error (_("ABI doesn't define required function is_destructor_name"));
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return (*current_cp_abi.is_destructor_name) (name);
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return (*current_cp_abi.is_destructor_name) (name);
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}
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}
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int
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int
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is_vtable_name (const char *name)
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is_vtable_name (const char *name)
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{
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{
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if ((current_cp_abi.is_vtable_name) == NULL)
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if ((current_cp_abi.is_vtable_name) == NULL)
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error (_("ABI doesn't define required function is_vtable_name"));
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error (_("ABI doesn't define required function is_vtable_name"));
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return (*current_cp_abi.is_vtable_name) (name);
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return (*current_cp_abi.is_vtable_name) (name);
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}
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}
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int
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int
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is_operator_name (const char *name)
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is_operator_name (const char *name)
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{
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{
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if ((current_cp_abi.is_operator_name) == NULL)
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if ((current_cp_abi.is_operator_name) == NULL)
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error (_("ABI doesn't define required function is_operator_name"));
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error (_("ABI doesn't define required function is_operator_name"));
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return (*current_cp_abi.is_operator_name) (name);
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return (*current_cp_abi.is_operator_name) (name);
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}
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}
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int
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int
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baseclass_offset (struct type *type, int index, const bfd_byte *valaddr,
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baseclass_offset (struct type *type, int index, const bfd_byte *valaddr,
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CORE_ADDR address)
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CORE_ADDR address)
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{
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{
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if (current_cp_abi.baseclass_offset == NULL)
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if (current_cp_abi.baseclass_offset == NULL)
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error (_("ABI doesn't define required function baseclass_offset"));
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error (_("ABI doesn't define required function baseclass_offset"));
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return (*current_cp_abi.baseclass_offset) (type, index, valaddr, address);
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return (*current_cp_abi.baseclass_offset) (type, index, valaddr, address);
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}
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}
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struct value *
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struct value *
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value_virtual_fn_field (struct value **arg1p, struct fn_field *f, int j,
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value_virtual_fn_field (struct value **arg1p, struct fn_field *f, int j,
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struct type *type, int offset)
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struct type *type, int offset)
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{
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{
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if ((current_cp_abi.virtual_fn_field) == NULL)
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if ((current_cp_abi.virtual_fn_field) == NULL)
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return NULL;
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return NULL;
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return (*current_cp_abi.virtual_fn_field) (arg1p, f, j, type, offset);
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return (*current_cp_abi.virtual_fn_field) (arg1p, f, j, type, offset);
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}
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}
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struct type *
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struct type *
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value_rtti_type (struct value *v, int *full, int *top, int *using_enc)
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value_rtti_type (struct value *v, int *full, int *top, int *using_enc)
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{
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{
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if ((current_cp_abi.rtti_type) == NULL)
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if ((current_cp_abi.rtti_type) == NULL)
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return NULL;
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return NULL;
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return (*current_cp_abi.rtti_type) (v, full, top, using_enc);
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return (*current_cp_abi.rtti_type) (v, full, top, using_enc);
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}
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}
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void
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void
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cplus_print_method_ptr (const gdb_byte *contents, struct type *type,
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cplus_print_method_ptr (const gdb_byte *contents, struct type *type,
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struct ui_file *stream)
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struct ui_file *stream)
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{
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{
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if (current_cp_abi.print_method_ptr == NULL)
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if (current_cp_abi.print_method_ptr == NULL)
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error (_("GDB does not support pointers to methods on this target"));
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error (_("GDB does not support pointers to methods on this target"));
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(*current_cp_abi.print_method_ptr) (contents, type, stream);
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(*current_cp_abi.print_method_ptr) (contents, type, stream);
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}
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}
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int
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int
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cplus_method_ptr_size (void)
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cplus_method_ptr_size (void)
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{
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{
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if (current_cp_abi.method_ptr_size == NULL)
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if (current_cp_abi.method_ptr_size == NULL)
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error (_("GDB does not support pointers to methods on this target"));
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error (_("GDB does not support pointers to methods on this target"));
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return (*current_cp_abi.method_ptr_size) ();
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return (*current_cp_abi.method_ptr_size) ();
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}
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}
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void
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void
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cplus_make_method_ptr (gdb_byte *contents, CORE_ADDR value, int is_virtual)
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cplus_make_method_ptr (gdb_byte *contents, CORE_ADDR value, int is_virtual)
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{
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{
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if (current_cp_abi.make_method_ptr == NULL)
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if (current_cp_abi.make_method_ptr == NULL)
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error (_("GDB does not support pointers to methods on this target"));
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error (_("GDB does not support pointers to methods on this target"));
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(*current_cp_abi.make_method_ptr) (contents, value, is_virtual);
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(*current_cp_abi.make_method_ptr) (contents, value, is_virtual);
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}
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}
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CORE_ADDR
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CORE_ADDR
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cplus_skip_trampoline (struct frame_info *frame, CORE_ADDR stop_pc)
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cplus_skip_trampoline (struct frame_info *frame, CORE_ADDR stop_pc)
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{
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{
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if (current_cp_abi.skip_trampoline == NULL)
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if (current_cp_abi.skip_trampoline == NULL)
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return 0;
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return 0;
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return (*current_cp_abi.skip_trampoline) (frame, stop_pc);
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return (*current_cp_abi.skip_trampoline) (frame, stop_pc);
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}
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}
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struct value *
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struct value *
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cplus_method_ptr_to_value (struct value **this_p, struct value *method_ptr)
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cplus_method_ptr_to_value (struct value **this_p, struct value *method_ptr)
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{
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{
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if (current_cp_abi.method_ptr_to_value == NULL)
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if (current_cp_abi.method_ptr_to_value == NULL)
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error (_("GDB does not support pointers to methods on this target"));
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error (_("GDB does not support pointers to methods on this target"));
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return (*current_cp_abi.method_ptr_to_value) (this_p, method_ptr);
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return (*current_cp_abi.method_ptr_to_value) (this_p, method_ptr);
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}
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}
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int
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int
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cp_pass_by_reference (struct type *type)
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cp_pass_by_reference (struct type *type)
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{
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{
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if ((current_cp_abi.pass_by_reference) == NULL)
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if ((current_cp_abi.pass_by_reference) == NULL)
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return 0;
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return 0;
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return (*current_cp_abi.pass_by_reference) (type);
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return (*current_cp_abi.pass_by_reference) (type);
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}
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}
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/* Set the current C++ ABI to SHORT_NAME. */
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/* Set the current C++ ABI to SHORT_NAME. */
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static int
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static int
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switch_to_cp_abi (const char *short_name)
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switch_to_cp_abi (const char *short_name)
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{
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{
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struct cp_abi_ops *abi;
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struct cp_abi_ops *abi;
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abi = find_cp_abi (short_name);
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abi = find_cp_abi (short_name);
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if (abi == NULL)
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if (abi == NULL)
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return 0;
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return 0;
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current_cp_abi = *abi;
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current_cp_abi = *abi;
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return 1;
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return 1;
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}
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}
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/* Add ABI to the list of supported C++ ABI's. */
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/* Add ABI to the list of supported C++ ABI's. */
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int
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int
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register_cp_abi (struct cp_abi_ops *abi)
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register_cp_abi (struct cp_abi_ops *abi)
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{
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{
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if (num_cp_abis == CP_ABI_MAX)
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if (num_cp_abis == CP_ABI_MAX)
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internal_error (__FILE__, __LINE__,
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internal_error (__FILE__, __LINE__,
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_("Too many C++ ABIs, please increase CP_ABI_MAX in cp-abi.c"));
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_("Too many C++ ABIs, please increase CP_ABI_MAX in cp-abi.c"));
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cp_abis[num_cp_abis++] = abi;
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cp_abis[num_cp_abis++] = abi;
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return 1;
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return 1;
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}
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}
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/* Set the ABI to use in "auto" mode to SHORT_NAME. */
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/* Set the ABI to use in "auto" mode to SHORT_NAME. */
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void
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void
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set_cp_abi_as_auto_default (const char *short_name)
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set_cp_abi_as_auto_default (const char *short_name)
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{
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{
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char *new_longname, *new_doc;
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char *new_longname, *new_doc;
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struct cp_abi_ops *abi = find_cp_abi (short_name);
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struct cp_abi_ops *abi = find_cp_abi (short_name);
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if (abi == NULL)
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if (abi == NULL)
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internal_error (__FILE__, __LINE__,
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internal_error (__FILE__, __LINE__,
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_("Cannot find C++ ABI \"%s\" to set it as auto default."),
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_("Cannot find C++ ABI \"%s\" to set it as auto default."),
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short_name);
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short_name);
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if (auto_cp_abi.longname != NULL)
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if (auto_cp_abi.longname != NULL)
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xfree ((char *) auto_cp_abi.longname);
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xfree ((char *) auto_cp_abi.longname);
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if (auto_cp_abi.doc != NULL)
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if (auto_cp_abi.doc != NULL)
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xfree ((char *) auto_cp_abi.doc);
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xfree ((char *) auto_cp_abi.doc);
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auto_cp_abi = *abi;
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auto_cp_abi = *abi;
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auto_cp_abi.shortname = "auto";
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auto_cp_abi.shortname = "auto";
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new_longname = xstrprintf ("currently \"%s\"", abi->shortname);
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new_longname = xstrprintf ("currently \"%s\"", abi->shortname);
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auto_cp_abi.longname = new_longname;
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auto_cp_abi.longname = new_longname;
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new_doc = xstrprintf ("Automatically selected; currently \"%s\"",
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new_doc = xstrprintf ("Automatically selected; currently \"%s\"",
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abi->shortname);
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abi->shortname);
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auto_cp_abi.doc = new_doc;
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auto_cp_abi.doc = new_doc;
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/* Since we copy the current ABI into current_cp_abi instead of
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/* Since we copy the current ABI into current_cp_abi instead of
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using a pointer, if auto is currently the default, we need to
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using a pointer, if auto is currently the default, we need to
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reset it. */
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reset it. */
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if (strcmp (current_cp_abi.shortname, "auto") == 0)
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if (strcmp (current_cp_abi.shortname, "auto") == 0)
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switch_to_cp_abi ("auto");
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switch_to_cp_abi ("auto");
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}
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}
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/* Return the ABI operations associated with SHORT_NAME. */
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/* Return the ABI operations associated with SHORT_NAME. */
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static struct cp_abi_ops *
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static struct cp_abi_ops *
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find_cp_abi (const char *short_name)
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find_cp_abi (const char *short_name)
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{
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{
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int i;
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int i;
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for (i = 0; i < num_cp_abis; i++)
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for (i = 0; i < num_cp_abis; i++)
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if (strcmp (cp_abis[i]->shortname, short_name) == 0)
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if (strcmp (cp_abis[i]->shortname, short_name) == 0)
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return cp_abis[i];
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return cp_abis[i];
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return NULL;
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return NULL;
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}
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}
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/* Display the list of registered C++ ABIs. */
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/* Display the list of registered C++ ABIs. */
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static void
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static void
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list_cp_abis (int from_tty)
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list_cp_abis (int from_tty)
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{
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{
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struct cleanup *cleanup_chain;
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struct cleanup *cleanup_chain;
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int i;
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int i;
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ui_out_text (uiout, "The available C++ ABIs are:\n");
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ui_out_text (uiout, "The available C++ ABIs are:\n");
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cleanup_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "cp-abi-list");
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cleanup_chain = make_cleanup_ui_out_tuple_begin_end (uiout, "cp-abi-list");
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for (i = 0; i < num_cp_abis; i++)
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for (i = 0; i < num_cp_abis; i++)
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{
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{
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char pad[14];
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char pad[14];
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int padcount;
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int padcount;
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ui_out_text (uiout, " ");
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ui_out_text (uiout, " ");
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ui_out_field_string (uiout, "cp-abi", cp_abis[i]->shortname);
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ui_out_field_string (uiout, "cp-abi", cp_abis[i]->shortname);
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padcount = 16 - 2 - strlen (cp_abis[i]->shortname);
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padcount = 16 - 2 - strlen (cp_abis[i]->shortname);
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pad[padcount] = 0;
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pad[padcount] = 0;
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while (padcount > 0)
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while (padcount > 0)
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pad[--padcount] = ' ';
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pad[--padcount] = ' ';
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ui_out_text (uiout, pad);
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ui_out_text (uiout, pad);
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ui_out_field_string (uiout, "doc", cp_abis[i]->doc);
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ui_out_field_string (uiout, "doc", cp_abis[i]->doc);
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ui_out_text (uiout, "\n");
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ui_out_text (uiout, "\n");
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}
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}
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do_cleanups (cleanup_chain);
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do_cleanups (cleanup_chain);
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}
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}
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/* Set the current C++ ABI, or display the list of options if no
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/* Set the current C++ ABI, or display the list of options if no
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argument is given. */
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argument is given. */
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static void
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static void
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set_cp_abi_cmd (char *args, int from_tty)
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set_cp_abi_cmd (char *args, int from_tty)
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{
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{
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if (args == NULL)
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if (args == NULL)
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{
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{
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list_cp_abis (from_tty);
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list_cp_abis (from_tty);
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return;
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return;
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}
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}
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if (!switch_to_cp_abi (args))
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if (!switch_to_cp_abi (args))
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error (_("Could not find \"%s\" in ABI list"), args);
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error (_("Could not find \"%s\" in ABI list"), args);
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}
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}
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/* Show the currently selected C++ ABI. */
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/* Show the currently selected C++ ABI. */
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static void
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static void
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show_cp_abi_cmd (char *args, int from_tty)
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show_cp_abi_cmd (char *args, int from_tty)
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{
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{
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ui_out_text (uiout, "The currently selected C++ ABI is \"");
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ui_out_text (uiout, "The currently selected C++ ABI is \"");
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ui_out_field_string (uiout, "cp-abi", current_cp_abi.shortname);
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ui_out_field_string (uiout, "cp-abi", current_cp_abi.shortname);
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ui_out_text (uiout, "\" (");
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ui_out_text (uiout, "\" (");
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ui_out_field_string (uiout, "longname", current_cp_abi.longname);
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ui_out_field_string (uiout, "longname", current_cp_abi.longname);
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ui_out_text (uiout, ").\n");
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ui_out_text (uiout, ").\n");
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}
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}
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extern initialize_file_ftype _initialize_cp_abi; /* -Wmissing-prototypes */
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extern initialize_file_ftype _initialize_cp_abi; /* -Wmissing-prototypes */
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void
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void
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_initialize_cp_abi (void)
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_initialize_cp_abi (void)
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{
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{
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register_cp_abi (&auto_cp_abi);
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register_cp_abi (&auto_cp_abi);
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switch_to_cp_abi ("auto");
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switch_to_cp_abi ("auto");
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add_cmd ("cp-abi", class_obscure, set_cp_abi_cmd, _("\
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add_cmd ("cp-abi", class_obscure, set_cp_abi_cmd, _("\
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Set the ABI used for inspecting C++ objects.\n\
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Set the ABI used for inspecting C++ objects.\n\
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\"set cp-abi\" with no arguments will list the available ABIs."),
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\"set cp-abi\" with no arguments will list the available ABIs."),
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&setlist);
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&setlist);
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add_cmd ("cp-abi", class_obscure, show_cp_abi_cmd,
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add_cmd ("cp-abi", class_obscure, show_cp_abi_cmd,
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_("Show the ABI used for inspecting C++ objects."), &showlist);
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_("Show the ABI used for inspecting C++ objects."), &showlist);
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}
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}
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