/* Abstraction of various C++ ABI's we support, and the info we need
to get from them.
+
Contributed by Daniel Berlin <dberlin@redhat.com>
- Copyright 2001 Free Software Foundation, Inc.
+
+ Copyright (C) 2001-2020 Free Software Foundation, Inc.
This file is part of GDB.
- This program is free software; you can redistribute it and/or
- modify
- it under the terms of the GNU General Public License as published
- by
- the Free Software Foundation; either version 2 of the License, or
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA. */
+ along with this program. If not, see <http://www.gnu.org/licenses/>. */
-#ifndef CP_ABI_H_
-#define CP_ABI_H_ 1
+#ifndef CP_ABI_H
+#define CP_ABI_H
+struct fn_field;
+struct type;
struct value;
+struct ui_file;
+struct frame_info;
/* The functions here that attempt to determine what sort of thing a
mangled name refers to may well be revised in the future. It would
`delete'. */
complete_object_dtor,
- /* A destructor which finalizes a subobject of some larger object. */
+ /* A destructor which finalizes a subobject of some larger
+ object. */
base_object_dtor
};
this is the type containing F. OFFSET is the offset of that base
type within *VALUEP. */
extern struct value *value_virtual_fn_field (struct value **valuep,
- struct fn_field *f, int j,
- struct type *type, int offset);
+ struct fn_field *f,
+ int j,
+ struct type *type,
+ int offset);
/* Try to find the run-time type of VALUE, using C++ run-time type
of the complete object to the start of the embedded subobject
VALUE represents. In other words, the enclosing object starts
at VALUE_ADDR (VALUE) + VALUE_OFFSET (VALUE) +
- VALUE_EMBEDDED_OFFSET (VALUE) + *TOP
+ value_embedded_offset (VALUE) + *TOP
- If *USING_ENC is non-zero, then *TOP is the offset from the
address of the complete object to the enclosing object stored
in VALUE. In other words, the enclosing object starts at
FULL, TOP, and USING_ENC can each be zero, in which case we don't
provide the corresponding piece of information. */
extern struct type *value_rtti_type (struct value *value,
- int *full, int *top, int *using_enc);
+ int *full, LONGEST *top,
+ int *using_enc);
+
+/* Compute the offset of the baseclass which is the INDEXth baseclass
+ of class TYPE, for value at VALADDR (in host) at ADDRESS (in
+ target), offset by EMBEDDED_OFFSET. VALADDR points to the raw
+ contents of VAL. The result is the offset of the baseclass value
+ relative to (the address of)(ARG) + OFFSET. */
+
+extern int baseclass_offset (struct type *type,
+ int index, const gdb_byte *valaddr,
+ LONGEST embedded_offset,
+ CORE_ADDR address,
+ const struct value *val);
+
+/* Describe the target of a pointer to method. CONTENTS is the byte
+ pattern representing the pointer to method. TYPE is the pointer to
+ method type. STREAM is the stream to print it to. */
+void cplus_print_method_ptr (const gdb_byte *contents,
+ struct type *type,
+ struct ui_file *stream);
+
+/* Return the size of a pointer to member function of type
+ TO_TYPE. */
+int cplus_method_ptr_size (struct type *to_type);
+
+/* Return the method which should be called by applying METHOD_PTR to
+ *THIS_P, and adjust *THIS_P if necessary. */
+struct value *cplus_method_ptr_to_value (struct value **this_p,
+ struct value *method_ptr);
+
+/* Create the byte pattern in CONTENTS representing a pointer of type
+ TYPE to member function at ADDRESS (if IS_VIRTUAL is 0) or with
+ virtual table offset ADDRESS (if IS_VIRTUAL is 1). This is the
+ opposite of cplus_method_ptr_to_value. */
+void cplus_make_method_ptr (struct type *type, gdb_byte *CONTENTS,
+ CORE_ADDR address, int is_virtual);
+
+/* Print the vtable for VALUE, if there is one. If there is no
+ vtable, print a message, but do not throw. */
+
+void cplus_print_vtable (struct value *value);
+
+/* Implement 'typeid': find the type info for VALUE, if possible. If
+ the type info cannot be found, throw an exception. */
-/* 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.
+extern struct value *cplus_typeid (struct value *value);
- -1 is returned on error. */
+/* Return the type of 'typeid' for the current C++ ABI on the given
+ architecture. */
+
+extern struct type *cplus_typeid_type (struct gdbarch *gdbarch);
+
+/* Given a value which holds a pointer to a std::type_info, return the
+ type which that type_info represents. Throw an exception if the
+ type cannot be found. */
+
+extern struct type *cplus_type_from_type_info (struct value *value);
+
+/* Given a value which holds a pointer to a std::type_info, return the
+ name of the type which that type_info represents. Throw an
+ exception if the type name cannot be found. */
+
+extern std::string cplus_typename_from_type_info (struct value *value);
+
+/* Determine if we are currently in a C++ thunk. If so, get the
+ address of the routine we are thunking to and continue to there
+ instead. */
+
+CORE_ADDR cplus_skip_trampoline (struct frame_info *frame,
+ CORE_ADDR stop_pc);
+
+/* Return a struct that provides pass-by-reference information
+ about the given TYPE. */
+
+extern struct language_pass_by_ref_info cp_pass_by_reference
+ (struct type *type);
-extern int baseclass_offset (struct type *type, int index, char *valaddr,
- CORE_ADDR address);
-
struct cp_abi_ops
{
const char *shortname;
const char *longname;
const char *doc;
- /* ABI-specific implementations for the functions declared above. */
+ /* ABI-specific implementations for the functions declared
+ above. */
enum ctor_kinds (*is_constructor_name) (const char *name);
enum dtor_kinds (*is_destructor_name) (const char *name);
int (*is_vtable_name) (const char *name);
int (*is_operator_name) (const char *name);
- struct value *(*virtual_fn_field) (struct value **arg1p, struct fn_field * f,
- int j, struct type * type, int offset);
- struct type *(*rtti_type) (struct value *v, int *full, int *top,
- int *using_enc);
- int (*baseclass_offset) (struct type *type, int index, char *valaddr,
- CORE_ADDR address);
+ struct value *(*virtual_fn_field) (struct value **arg1p,
+ struct fn_field * f,
+ int j, struct type * type,
+ int offset);
+ struct type *(*rtti_type) (struct value *v, int *full,
+ LONGEST *top, int *using_enc);
+ int (*baseclass_offset) (struct type *type, int index,
+ const bfd_byte *valaddr, LONGEST embedded_offset,
+ CORE_ADDR address, const struct value *val);
+ void (*print_method_ptr) (const gdb_byte *contents,
+ struct type *type,
+ struct ui_file *stream);
+ int (*method_ptr_size) (struct type *);
+ void (*make_method_ptr) (struct type *, gdb_byte *,
+ CORE_ADDR, int);
+ struct value * (*method_ptr_to_value) (struct value **,
+ struct value *);
+ void (*print_vtable) (struct value *);
+ struct value *(*get_typeid) (struct value *value);
+ struct type *(*get_typeid_type) (struct gdbarch *gdbarch);
+ struct type *(*get_type_from_type_info) (struct value *value);
+ std::string (*get_typename_from_type_info) (struct value *value);
+ CORE_ADDR (*skip_trampoline) (struct frame_info *, CORE_ADDR);
+ struct language_pass_by_ref_info (*pass_by_reference) (struct type *type);
};
-extern struct cp_abi_ops *cp_abis;
-extern int num_cp_abis;
-extern struct cp_abi_ops current_cp_abi;
-extern int register_cp_abi (struct cp_abi_ops abi);
-extern int switch_to_cp_abi (const char *short_name);
-
-#endif
+extern int register_cp_abi (struct cp_abi_ops *abi);
+extern void set_cp_abi_as_auto_default (const char *short_name);
+#endif /* CP_ABI_H */
projects / deliverable / binutils-gdb.git / blobdiff