| /* Support routines for manipulating internal types for GDB. |
| |
| Copyright (C) 1992, 1993, 1994, 1995, 1996, 1998, 1999, 2000, 2001, 2002, |
| 2003, 2004, 2005, 2006, 2007, 2008 Free Software Foundation, Inc. |
| |
| Contributed by Cygnus Support, using pieces from other GDB modules. |
| |
| 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 3 of the License, or |
| (at your option) any later version. |
| |
| This program is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 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, see <http://www.gnu.org/licenses/>. */ |
| |
| #include "defs.h" |
| #include "gdb_string.h" |
| #include "bfd.h" |
| #include "symtab.h" |
| #include "symfile.h" |
| #include "objfiles.h" |
| #include "gdbtypes.h" |
| #include "expression.h" |
| #include "language.h" |
| #include "target.h" |
| #include "value.h" |
| #include "demangle.h" |
| #include "complaints.h" |
| #include "gdbcmd.h" |
| #include "wrapper.h" |
| #include "cp-abi.h" |
| #include "gdb_assert.h" |
| #include "hashtab.h" |
| |
| /* These variables point to the objects |
| representing the predefined C data types. */ |
| |
| struct type *builtin_type_int0; |
| struct type *builtin_type_int8; |
| struct type *builtin_type_uint8; |
| struct type *builtin_type_int16; |
| struct type *builtin_type_uint16; |
| struct type *builtin_type_int32; |
| struct type *builtin_type_uint32; |
| struct type *builtin_type_int64; |
| struct type *builtin_type_uint64; |
| struct type *builtin_type_int128; |
| struct type *builtin_type_uint128; |
| |
| /* Floatformat pairs. */ |
| const struct floatformat *floatformats_ieee_single[BFD_ENDIAN_UNKNOWN] = { |
| &floatformat_ieee_single_big, |
| &floatformat_ieee_single_little |
| }; |
| const struct floatformat *floatformats_ieee_double[BFD_ENDIAN_UNKNOWN] = { |
| &floatformat_ieee_double_big, |
| &floatformat_ieee_double_little |
| }; |
| const struct floatformat *floatformats_ieee_double_littlebyte_bigword[BFD_ENDIAN_UNKNOWN] = { |
| &floatformat_ieee_double_big, |
| &floatformat_ieee_double_littlebyte_bigword |
| }; |
| const struct floatformat *floatformats_i387_ext[BFD_ENDIAN_UNKNOWN] = { |
| &floatformat_i387_ext, |
| &floatformat_i387_ext |
| }; |
| const struct floatformat *floatformats_m68881_ext[BFD_ENDIAN_UNKNOWN] = { |
| &floatformat_m68881_ext, |
| &floatformat_m68881_ext |
| }; |
| const struct floatformat *floatformats_arm_ext[BFD_ENDIAN_UNKNOWN] = { |
| &floatformat_arm_ext_big, |
| &floatformat_arm_ext_littlebyte_bigword |
| }; |
| const struct floatformat *floatformats_ia64_spill[BFD_ENDIAN_UNKNOWN] = { |
| &floatformat_ia64_spill_big, |
| &floatformat_ia64_spill_little |
| }; |
| const struct floatformat *floatformats_ia64_quad[BFD_ENDIAN_UNKNOWN] = { |
| &floatformat_ia64_quad_big, |
| &floatformat_ia64_quad_little |
| }; |
| const struct floatformat *floatformats_vax_f[BFD_ENDIAN_UNKNOWN] = { |
| &floatformat_vax_f, |
| &floatformat_vax_f |
| }; |
| const struct floatformat *floatformats_vax_d[BFD_ENDIAN_UNKNOWN] = { |
| &floatformat_vax_d, |
| &floatformat_vax_d |
| }; |
| const struct floatformat *floatformats_ibm_long_double[BFD_ENDIAN_UNKNOWN] = { |
| &floatformat_ibm_long_double, |
| &floatformat_ibm_long_double |
| }; |
| |
| struct type *builtin_type_ieee_single; |
| struct type *builtin_type_ieee_double; |
| struct type *builtin_type_i387_ext; |
| struct type *builtin_type_m68881_ext; |
| struct type *builtin_type_arm_ext; |
| struct type *builtin_type_ia64_spill; |
| struct type *builtin_type_ia64_quad; |
| |
| |
| int opaque_type_resolution = 1; |
| static void |
| show_opaque_type_resolution (struct ui_file *file, int from_tty, |
| struct cmd_list_element *c, |
| const char *value) |
| { |
| fprintf_filtered (file, _("\ |
| Resolution of opaque struct/class/union types (if set before loading symbols) is %s.\n"), |
| value); |
| } |
| |
| int overload_debug = 0; |
| static void |
| show_overload_debug (struct ui_file *file, int from_tty, |
| struct cmd_list_element *c, const char *value) |
| { |
| fprintf_filtered (file, _("Debugging of C++ overloading is %s.\n"), |
| value); |
| } |
| |
| struct extra |
| { |
| char str[128]; |
| int len; |
| }; /* Maximum extension is 128! FIXME */ |
| |
| static void print_bit_vector (B_TYPE *, int); |
| static void print_arg_types (struct field *, int, int); |
| static void dump_fn_fieldlists (struct type *, int); |
| static void print_cplus_stuff (struct type *, int); |
| |
| |
| /* Alloc a new type structure and fill it with some defaults. If |
| OBJFILE is non-NULL, then allocate the space for the type structure |
| in that objfile's objfile_obstack. Otherwise allocate the new type |
| structure by xmalloc () (for permanent types). */ |
| |
| struct type * |
| alloc_type (struct objfile *objfile) |
| { |
| struct type *type; |
| |
| /* Alloc the structure and start off with all fields zeroed. */ |
| |
| if (objfile == NULL) |
| { |
| type = xmalloc (sizeof (struct type)); |
| memset (type, 0, sizeof (struct type)); |
| TYPE_MAIN_TYPE (type) = xmalloc (sizeof (struct main_type)); |
| } |
| else |
| { |
| type = obstack_alloc (&objfile->objfile_obstack, |
| sizeof (struct type)); |
| memset (type, 0, sizeof (struct type)); |
| TYPE_MAIN_TYPE (type) = obstack_alloc (&objfile->objfile_obstack, |
| sizeof (struct main_type)); |
| OBJSTAT (objfile, n_types++); |
| } |
| memset (TYPE_MAIN_TYPE (type), 0, sizeof (struct main_type)); |
| |
| /* Initialize the fields that might not be zero. */ |
| |
| TYPE_CODE (type) = TYPE_CODE_UNDEF; |
| TYPE_OBJFILE (type) = objfile; |
| TYPE_VPTR_FIELDNO (type) = -1; |
| TYPE_CHAIN (type) = type; /* Chain back to itself. */ |
| |
| return (type); |
| } |
| |
| /* Alloc a new type instance structure, fill it with some defaults, |
| and point it at OLDTYPE. Allocate the new type instance from the |
| same place as OLDTYPE. */ |
| |
| static struct type * |
| alloc_type_instance (struct type *oldtype) |
| { |
| struct type *type; |
| |
| /* Allocate the structure. */ |
| |
| if (TYPE_OBJFILE (oldtype) == NULL) |
| { |
| type = xmalloc (sizeof (struct type)); |
| memset (type, 0, sizeof (struct type)); |
| } |
| else |
| { |
| type = obstack_alloc (&TYPE_OBJFILE (oldtype)->objfile_obstack, |
| sizeof (struct type)); |
| memset (type, 0, sizeof (struct type)); |
| } |
| TYPE_MAIN_TYPE (type) = TYPE_MAIN_TYPE (oldtype); |
| |
| TYPE_CHAIN (type) = type; /* Chain back to itself for now. */ |
| |
| return (type); |
| } |
| |
| /* Clear all remnants of the previous type at TYPE, in preparation for |
| replacing it with something else. */ |
| static void |
| smash_type (struct type *type) |
| { |
| memset (TYPE_MAIN_TYPE (type), 0, sizeof (struct main_type)); |
| |
| /* For now, delete the rings. */ |
| TYPE_CHAIN (type) = type; |
| |
| /* For now, leave the pointer/reference types alone. */ |
| } |
| |
| /* Lookup a pointer to a type TYPE. TYPEPTR, if nonzero, points |
| to a pointer to memory where the pointer type should be stored. |
| If *TYPEPTR is zero, update it to point to the pointer type we return. |
| We allocate new memory if needed. */ |
| |
| struct type * |
| make_pointer_type (struct type *type, struct type **typeptr) |
| { |
| struct type *ntype; /* New type */ |
| struct objfile *objfile; |
| struct type *chain; |
| |
| ntype = TYPE_POINTER_TYPE (type); |
| |
| if (ntype) |
| { |
| if (typeptr == 0) |
| return ntype; /* Don't care about alloc, |
| and have new type. */ |
| else if (*typeptr == 0) |
| { |
| *typeptr = ntype; /* Tracking alloc, and have new type. */ |
| return ntype; |
| } |
| } |
| |
| if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ |
| { |
| ntype = alloc_type (TYPE_OBJFILE (type)); |
| if (typeptr) |
| *typeptr = ntype; |
| } |
| else /* We have storage, but need to reset it. */ |
| { |
| ntype = *typeptr; |
| objfile = TYPE_OBJFILE (ntype); |
| chain = TYPE_CHAIN (ntype); |
| smash_type (ntype); |
| TYPE_CHAIN (ntype) = chain; |
| TYPE_OBJFILE (ntype) = objfile; |
| } |
| |
| TYPE_TARGET_TYPE (ntype) = type; |
| TYPE_POINTER_TYPE (type) = ntype; |
| |
| /* FIXME! Assume the machine has only one representation for |
| pointers! */ |
| |
| TYPE_LENGTH (ntype) = |
| gdbarch_ptr_bit (current_gdbarch) / TARGET_CHAR_BIT; |
| TYPE_CODE (ntype) = TYPE_CODE_PTR; |
| |
| /* Mark pointers as unsigned. The target converts between pointers |
| and addresses (CORE_ADDRs) using gdbarch_pointer_to_address and |
| gdbarch_address_to_pointer. */ |
| TYPE_FLAGS (ntype) |= TYPE_FLAG_UNSIGNED; |
| |
| if (!TYPE_POINTER_TYPE (type)) /* Remember it, if don't have one. */ |
| TYPE_POINTER_TYPE (type) = ntype; |
| |
| /* Update the length of all the other variants of this type. */ |
| chain = TYPE_CHAIN (ntype); |
| while (chain != ntype) |
| { |
| TYPE_LENGTH (chain) = TYPE_LENGTH (ntype); |
| chain = TYPE_CHAIN (chain); |
| } |
| |
| return ntype; |
| } |
| |
| /* Given a type TYPE, return a type of pointers to that type. |
| May need to construct such a type if this is the first use. */ |
| |
| struct type * |
| lookup_pointer_type (struct type *type) |
| { |
| return make_pointer_type (type, (struct type **) 0); |
| } |
| |
| /* Lookup a C++ `reference' to a type TYPE. TYPEPTR, if nonzero, |
| points to a pointer to memory where the reference type should be |
| stored. If *TYPEPTR is zero, update it to point to the reference |
| type we return. We allocate new memory if needed. */ |
| |
| struct type * |
| make_reference_type (struct type *type, struct type **typeptr) |
| { |
| struct type *ntype; /* New type */ |
| struct objfile *objfile; |
| struct type *chain; |
| |
| ntype = TYPE_REFERENCE_TYPE (type); |
| |
| if (ntype) |
| { |
| if (typeptr == 0) |
| return ntype; /* Don't care about alloc, |
| and have new type. */ |
| else if (*typeptr == 0) |
| { |
| *typeptr = ntype; /* Tracking alloc, and have new type. */ |
| return ntype; |
| } |
| } |
| |
| if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ |
| { |
| ntype = alloc_type (TYPE_OBJFILE (type)); |
| if (typeptr) |
| *typeptr = ntype; |
| } |
| else /* We have storage, but need to reset it. */ |
| { |
| ntype = *typeptr; |
| objfile = TYPE_OBJFILE (ntype); |
| chain = TYPE_CHAIN (ntype); |
| smash_type (ntype); |
| TYPE_CHAIN (ntype) = chain; |
| TYPE_OBJFILE (ntype) = objfile; |
| } |
| |
| TYPE_TARGET_TYPE (ntype) = type; |
| TYPE_REFERENCE_TYPE (type) = ntype; |
| |
| /* FIXME! Assume the machine has only one representation for |
| references, and that it matches the (only) representation for |
| pointers! */ |
| |
| TYPE_LENGTH (ntype) = gdbarch_ptr_bit (current_gdbarch) / TARGET_CHAR_BIT; |
| TYPE_CODE (ntype) = TYPE_CODE_REF; |
| |
| if (!TYPE_REFERENCE_TYPE (type)) /* Remember it, if don't have one. */ |
| TYPE_REFERENCE_TYPE (type) = ntype; |
| |
| /* Update the length of all the other variants of this type. */ |
| chain = TYPE_CHAIN (ntype); |
| while (chain != ntype) |
| { |
| TYPE_LENGTH (chain) = TYPE_LENGTH (ntype); |
| chain = TYPE_CHAIN (chain); |
| } |
| |
| return ntype; |
| } |
| |
| /* Same as above, but caller doesn't care about memory allocation |
| details. */ |
| |
| struct type * |
| lookup_reference_type (struct type *type) |
| { |
| return make_reference_type (type, (struct type **) 0); |
| } |
| |
| /* Lookup a function type that returns type TYPE. TYPEPTR, if |
| nonzero, points to a pointer to memory where the function type |
| should be stored. If *TYPEPTR is zero, update it to point to the |
| function type we return. We allocate new memory if needed. */ |
| |
| struct type * |
| make_function_type (struct type *type, struct type **typeptr) |
| { |
| struct type *ntype; /* New type */ |
| struct objfile *objfile; |
| |
| if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */ |
| { |
| ntype = alloc_type (TYPE_OBJFILE (type)); |
| if (typeptr) |
| *typeptr = ntype; |
| } |
| else /* We have storage, but need to reset it. */ |
| { |
| ntype = *typeptr; |
| objfile = TYPE_OBJFILE (ntype); |
| smash_type (ntype); |
| TYPE_OBJFILE (ntype) = objfile; |
| } |
| |
| TYPE_TARGET_TYPE (ntype) = type; |
| |
| TYPE_LENGTH (ntype) = 1; |
| TYPE_CODE (ntype) = TYPE_CODE_FUNC; |
| |
| return ntype; |
| } |
| |
| |
| /* Given a type TYPE, return a type of functions that return that type. |
| May need to construct such a type if this is the first use. */ |
| |
| struct type * |
| lookup_function_type (struct type *type) |
| { |
| return make_function_type (type, (struct type **) 0); |
| } |
| |
| /* Identify address space identifier by name -- |
| return the integer flag defined in gdbtypes.h. */ |
| extern int |
| address_space_name_to_int (char *space_identifier) |
| { |
| struct gdbarch *gdbarch = current_gdbarch; |
| int type_flags; |
| /* Check for known address space delimiters. */ |
| if (!strcmp (space_identifier, "code")) |
| return TYPE_FLAG_CODE_SPACE; |
| else if (!strcmp (space_identifier, "data")) |
| return TYPE_FLAG_DATA_SPACE; |
| else if (gdbarch_address_class_name_to_type_flags_p (gdbarch) |
| && gdbarch_address_class_name_to_type_flags (gdbarch, |
| space_identifier, |
| &type_flags)) |
| return type_flags; |
| else |
| error (_("Unknown address space specifier: \"%s\""), space_identifier); |
| } |
| |
| /* Identify address space identifier by integer flag as defined in |
| gdbtypes.h -- return the string version of the adress space name. */ |
| |
| const char * |
| address_space_int_to_name (int space_flag) |
| { |
| struct gdbarch *gdbarch = current_gdbarch; |
| if (space_flag & TYPE_FLAG_CODE_SPACE) |
| return "code"; |
| else if (space_flag & TYPE_FLAG_DATA_SPACE) |
| return "data"; |
| else if ((space_flag & TYPE_FLAG_ADDRESS_CLASS_ALL) |
| && gdbarch_address_class_type_flags_to_name_p (gdbarch)) |
| return gdbarch_address_class_type_flags_to_name (gdbarch, space_flag); |
| else |
| return NULL; |
| } |
| |
| /* Create a new type with instance flags NEW_FLAGS, based on TYPE. |
| |
| If STORAGE is non-NULL, create the new type instance there. |
| STORAGE must be in the same obstack as TYPE. */ |
| |
| static struct type * |
| make_qualified_type (struct type *type, int new_flags, |
| struct type *storage) |
| { |
| struct type *ntype; |
| |
| ntype = type; |
| do { |
| if (TYPE_INSTANCE_FLAGS (ntype) == new_flags) |
| return ntype; |
| ntype = TYPE_CHAIN (ntype); |
| } while (ntype != type); |
| |
| /* Create a new type instance. */ |
| if (storage == NULL) |
| ntype = alloc_type_instance (type); |
| else |
| { |
| /* If STORAGE was provided, it had better be in the same objfile |
| as TYPE. Otherwise, we can't link it into TYPE's cv chain: |
| if one objfile is freed and the other kept, we'd have |
| dangling pointers. */ |
| gdb_assert (TYPE_OBJFILE (type) == TYPE_OBJFILE (storage)); |
| |
| ntype = storage; |
| TYPE_MAIN_TYPE (ntype) = TYPE_MAIN_TYPE (type); |
| TYPE_CHAIN (ntype) = ntype; |
| } |
| |
| /* Pointers or references to the original type are not relevant to |
| the new type. */ |
| TYPE_POINTER_TYPE (ntype) = (struct type *) 0; |
| TYPE_REFERENCE_TYPE (ntype) = (struct type *) 0; |
| |
| /* Chain the new qualified type to the old type. */ |
| TYPE_CHAIN (ntype) = TYPE_CHAIN (type); |
| TYPE_CHAIN (type) = ntype; |
| |
| /* Now set the instance flags and return the new type. */ |
| TYPE_INSTANCE_FLAGS (ntype) = new_flags; |
| |
| /* Set length of new type to that of the original type. */ |
| TYPE_LENGTH (ntype) = TYPE_LENGTH (type); |
| |
| return ntype; |
| } |
| |
| /* Make an address-space-delimited variant of a type -- a type that |
| is identical to the one supplied except that it has an address |
| space attribute attached to it (such as "code" or "data"). |
| |
| The space attributes "code" and "data" are for Harvard |
| architectures. The address space attributes are for architectures |
| which have alternately sized pointers or pointers with alternate |
| representations. */ |
| |
| struct type * |
| make_type_with_address_space (struct type *type, int space_flag) |
| { |
| struct type *ntype; |
| int new_flags = ((TYPE_INSTANCE_FLAGS (type) |
| & ~(TYPE_FLAG_CODE_SPACE | TYPE_FLAG_DATA_SPACE |
| | TYPE_FLAG_ADDRESS_CLASS_ALL)) |
| | space_flag); |
| |
| return make_qualified_type (type, new_flags, NULL); |
| } |
| |
| /* Make a "c-v" variant of a type -- a type that is identical to the |
| one supplied except that it may have const or volatile attributes |
| CNST is a flag for setting the const attribute |
| VOLTL is a flag for setting the volatile attribute |
| TYPE is the base type whose variant we are creating. |
| |
| If TYPEPTR and *TYPEPTR are non-zero, then *TYPEPTR points to |
| storage to hold the new qualified type; *TYPEPTR and TYPE must be |
| in the same objfile. Otherwise, allocate fresh memory for the new |
| type whereever TYPE lives. If TYPEPTR is non-zero, set it to the |
| new type we construct. */ |
| struct type * |
| make_cv_type (int cnst, int voltl, |
| struct type *type, |
| struct type **typeptr) |
| { |
| struct type *ntype; /* New type */ |
| struct type *tmp_type = type; /* tmp type */ |
| struct objfile *objfile; |
| |
| int new_flags = (TYPE_INSTANCE_FLAGS (type) |
| & ~(TYPE_FLAG_CONST | TYPE_FLAG_VOLATILE)); |
| |
| if (cnst) |
| new_flags |= TYPE_FLAG_CONST; |
| |
| if (voltl) |
| new_flags |= TYPE_FLAG_VOLATILE; |
| |
| if (typeptr && *typeptr != NULL) |
| { |
| /* TYPE and *TYPEPTR must be in the same objfile. We can't have |
| a C-V variant chain that threads across objfiles: if one |
| objfile gets freed, then the other has a broken C-V chain. |
| |
| This code used to try to copy over the main type from TYPE to |
| *TYPEPTR if they were in different objfiles, but that's |
| wrong, too: TYPE may have a field list or member function |
| lists, which refer to types of their own, etc. etc. The |
| whole shebang would need to be copied over recursively; you |
| can't have inter-objfile pointers. The only thing to do is |
| to leave stub types as stub types, and look them up afresh by |
| name each time you encounter them. */ |
| gdb_assert (TYPE_OBJFILE (*typeptr) == TYPE_OBJFILE (type)); |
| } |
| |
| ntype = make_qualified_type (type, new_flags, |
| typeptr ? *typeptr : NULL); |
| |
| if (typeptr != NULL) |
| *typeptr = ntype; |
| |
| return ntype; |
| } |
| |
| /* Replace the contents of ntype with the type *type. This changes the |
| contents, rather than the pointer for TYPE_MAIN_TYPE (ntype); thus |
| the changes are propogated to all types in the TYPE_CHAIN. |
| |
| In order to build recursive types, it's inevitable that we'll need |
| to update types in place --- but this sort of indiscriminate |
| smashing is ugly, and needs to be replaced with something more |
| controlled. TYPE_MAIN_TYPE is a step in this direction; it's not |
| clear if more steps are needed. */ |
| void |
| replace_type (struct type *ntype, struct type *type) |
| { |
| struct type *chain; |
| |
| /* These two types had better be in the same objfile. Otherwise, |
| the assignment of one type's main type structure to the other |
| will produce a type with references to objects (names; field |
| lists; etc.) allocated on an objfile other than its own. */ |
| gdb_assert (TYPE_OBJFILE (ntype) == TYPE_OBJFILE (ntype)); |
| |
| *TYPE_MAIN_TYPE (ntype) = *TYPE_MAIN_TYPE (type); |
| |
| /* The type length is not a part of the main type. Update it for |
| each type on the variant chain. */ |
| chain = ntype; |
| do { |
| /* Assert that this element of the chain has no address-class bits |
| set in its flags. Such type variants might have type lengths |
| which are supposed to be different from the non-address-class |
| variants. This assertion shouldn't ever be triggered because |
| symbol readers which do construct address-class variants don't |
| call replace_type(). */ |
| gdb_assert (TYPE_ADDRESS_CLASS_ALL (chain) == 0); |
| |
| TYPE_LENGTH (chain) = TYPE_LENGTH (type); |
| chain = TYPE_CHAIN (chain); |
| } while (ntype != chain); |
| |
| /* Assert that the two types have equivalent instance qualifiers. |
| This should be true for at least all of our debug readers. */ |
| gdb_assert (TYPE_INSTANCE_FLAGS (ntype) == TYPE_INSTANCE_FLAGS (type)); |
| } |
| |
| /* Implement direct support for MEMBER_TYPE in GNU C++. |
| May need to construct such a type if this is the first use. |
| The TYPE is the type of the member. The DOMAIN is the type |
| of the aggregate that the member belongs to. */ |
| |
| struct type * |
| lookup_memberptr_type (struct type *type, struct type *domain) |
| { |
| struct type *mtype; |
| |
| mtype = alloc_type (TYPE_OBJFILE (type)); |
| smash_to_memberptr_type (mtype, domain, type); |
| return (mtype); |
| } |
| |
| /* Return a pointer-to-method type, for a method of type TO_TYPE. */ |
| |
| struct type * |
| lookup_methodptr_type (struct type *to_type) |
| { |
| struct type *mtype; |
| |
| mtype = alloc_type (TYPE_OBJFILE (to_type)); |
| TYPE_TARGET_TYPE (mtype) = to_type; |
| TYPE_DOMAIN_TYPE (mtype) = TYPE_DOMAIN_TYPE (to_type); |
| TYPE_LENGTH (mtype) = cplus_method_ptr_size (); |
| TYPE_CODE (mtype) = TYPE_CODE_METHODPTR; |
| return mtype; |
| } |
| |
| /* Allocate a stub method whose return type is TYPE. This apparently |
| happens for speed of symbol reading, since parsing out the |
| arguments to the method is cpu-intensive, the way we are doing it. |
| So, we will fill in arguments later. This always returns a fresh |
| type. */ |
| |
| struct type * |
| allocate_stub_method (struct type *type) |
| { |
| struct type *mtype; |
| |
| mtype = init_type (TYPE_CODE_METHOD, 1, TYPE_FLAG_STUB, NULL, |
| TYPE_OBJFILE (type)); |
| TYPE_TARGET_TYPE (mtype) = type; |
| /* _DOMAIN_TYPE (mtype) = unknown yet */ |
| return (mtype); |
| } |
| |
| /* Create a range type using either a blank type supplied in |
| RESULT_TYPE, or creating a new type, inheriting the objfile from |
| INDEX_TYPE. |
| |
| Indices will be of type INDEX_TYPE, and will range from LOW_BOUND |
| to HIGH_BOUND, inclusive. |
| |
| FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make |
| sure it is TYPE_CODE_UNDEF before we bash it into a range type? */ |
| |
| struct type * |
| create_range_type (struct type *result_type, struct type *index_type, |
| int low_bound, int high_bound) |
| { |
| if (result_type == NULL) |
| { |
| result_type = alloc_type (TYPE_OBJFILE (index_type)); |
| } |
| TYPE_CODE (result_type) = TYPE_CODE_RANGE; |
| TYPE_TARGET_TYPE (result_type) = index_type; |
| if (TYPE_STUB (index_type)) |
| TYPE_FLAGS (result_type) |= TYPE_FLAG_TARGET_STUB; |
| else |
| TYPE_LENGTH (result_type) = TYPE_LENGTH (check_typedef (index_type)); |
| TYPE_NFIELDS (result_type) = 2; |
| TYPE_FIELDS (result_type) = (struct field *) |
| TYPE_ALLOC (result_type, 2 * sizeof (struct field)); |
| memset (TYPE_FIELDS (result_type), 0, 2 * sizeof (struct field)); |
| TYPE_FIELD_BITPOS (result_type, 0) = low_bound; |
| TYPE_FIELD_BITPOS (result_type, 1) = high_bound; |
| |
| if (low_bound >= 0) |
| TYPE_FLAGS (result_type) |= TYPE_FLAG_UNSIGNED; |
| |
| return (result_type); |
| } |
| |
| /* Set *LOWP and *HIGHP to the lower and upper bounds of discrete type |
| TYPE. Return 1 if type is a range type, 0 if it is discrete (and |
| bounds will fit in LONGEST), or -1 otherwise. */ |
| |
| int |
| get_discrete_bounds (struct type *type, LONGEST *lowp, LONGEST *highp) |
| { |
| CHECK_TYPEDEF (type); |
| switch (TYPE_CODE (type)) |
| { |
| case TYPE_CODE_RANGE: |
| *lowp = TYPE_LOW_BOUND (type); |
| *highp = TYPE_HIGH_BOUND (type); |
| return 1; |
| case TYPE_CODE_ENUM: |
| if (TYPE_NFIELDS (type) > 0) |
| { |
| /* The enums may not be sorted by value, so search all |
| entries */ |
| int i; |
| |
| *lowp = *highp = TYPE_FIELD_BITPOS (type, 0); |
| for (i = 0; i < TYPE_NFIELDS (type); i++) |
| { |
| if (TYPE_FIELD_BITPOS (type, i) < *lowp) |
| *lowp = TYPE_FIELD_BITPOS (type, i); |
| if (TYPE_FIELD_BITPOS (type, i) > *highp) |
| *highp = TYPE_FIELD_BITPOS (type, i); |
| } |
| |
| /* Set unsigned indicator if warranted. */ |
| if (*lowp >= 0) |
| { |
| TYPE_FLAGS (type) |= TYPE_FLAG_UNSIGNED; |
| } |
| } |
| else |
| { |
| *lowp = 0; |
| *highp = -1; |
| } |
| return 0; |
| case TYPE_CODE_BOOL: |
| *lowp = 0; |
| *highp = 1; |
| return 0; |
| case TYPE_CODE_INT: |
| if (TYPE_LENGTH (type) > sizeof (LONGEST)) /* Too big */ |
| return -1; |
| if (!TYPE_UNSIGNED (type)) |
| { |
| *lowp = -(1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1)); |
| *highp = -*lowp - 1; |
| return 0; |
| } |
| /* ... fall through for unsigned ints ... */ |
| case TYPE_CODE_CHAR: |
| *lowp = 0; |
| /* This round-about calculation is to avoid shifting by |
| TYPE_LENGTH (type) * TARGET_CHAR_BIT, which will not work |
| if TYPE_LENGTH (type) == sizeof (LONGEST). */ |
| *highp = 1 << (TYPE_LENGTH (type) * TARGET_CHAR_BIT - 1); |
| *highp = (*highp - 1) | *highp; |
| return 0; |
| default: |
| return -1; |
| } |
| } |
| |
| /* Create an array type using either a blank type supplied in |
| RESULT_TYPE, or creating a new type, inheriting the objfile from |
| RANGE_TYPE. |
| |
| Elements will be of type ELEMENT_TYPE, the indices will be of type |
| RANGE_TYPE. |
| |
| FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make |
| sure it is TYPE_CODE_UNDEF before we bash it into an array |
| type? */ |
| |
| struct type * |
| create_array_type (struct type *result_type, |
| struct type *element_type, |
| struct type *range_type) |
| { |
| LONGEST low_bound, high_bound; |
| |
| if (result_type == NULL) |
| { |
| result_type = alloc_type (TYPE_OBJFILE (range_type)); |
| } |
| TYPE_CODE (result_type) = TYPE_CODE_ARRAY; |
| TYPE_TARGET_TYPE (result_type) = element_type; |
| if (get_discrete_bounds (range_type, &low_bound, &high_bound) < 0) |
| low_bound = high_bound = 0; |
| CHECK_TYPEDEF (element_type); |
| /* Be careful when setting the array length. Ada arrays can be |
| empty arrays with the high_bound being smaller than the low_bound. |
| In such cases, the array length should be zero. */ |
| if (high_bound < low_bound) |
| TYPE_LENGTH (result_type) = 0; |
| else |
| TYPE_LENGTH (result_type) = |
| TYPE_LENGTH (element_type) * (high_bound - low_bound + 1); |
| TYPE_NFIELDS (result_type) = 1; |
| TYPE_FIELDS (result_type) = |
| (struct field *) TYPE_ALLOC (result_type, sizeof (struct field)); |
| memset (TYPE_FIELDS (result_type), 0, sizeof (struct field)); |
| TYPE_FIELD_TYPE (result_type, 0) = range_type; |
| TYPE_VPTR_FIELDNO (result_type) = -1; |
| |
| /* TYPE_FLAG_TARGET_STUB will take care of zero length arrays */ |
| if (TYPE_LENGTH (result_type) == 0) |
| TYPE_FLAGS (result_type) |= TYPE_FLAG_TARGET_STUB; |
| |
| return (result_type); |
| } |
| |
| /* Create a string type using either a blank type supplied in |
| RESULT_TYPE, or creating a new type. String types are similar |
| enough to array of char types that we can use create_array_type to |
| build the basic type and then bash it into a string type. |
| |
| For fixed length strings, the range type contains 0 as the lower |
| bound and the length of the string minus one as the upper bound. |
| |
| FIXME: Maybe we should check the TYPE_CODE of RESULT_TYPE to make |
| sure it is TYPE_CODE_UNDEF before we bash it into a string |
| type? */ |
| |
| struct type * |
| create_string_type (struct type *result_type, |
| struct type *range_type) |
| { |
| struct type *string_char_type; |
| |
| string_char_type = language_string_char_type (current_language, |
| current_gdbarch); |
| result_type = create_array_type (result_type, |
| string_char_type, |
| range_type); |
| TYPE_CODE (result_type) = TYPE_CODE_STRING; |
| return (result_type); |
| } |
| |
| struct type * |
| create_set_type (struct type *result_type, struct type *domain_type) |
| { |
| if (result_type == NULL) |
| { |
| result_type = alloc_type (TYPE_OBJFILE (domain_type)); |
| } |
| TYPE_CODE (result_type) = TYPE_CODE_SET; |
| TYPE_NFIELDS (result_type) = 1; |
| TYPE_FIELDS (result_type) = (struct field *) |
| TYPE_ALLOC (result_type, 1 * sizeof (struct field)); |
| memset (TYPE_FIELDS (result_type), 0, sizeof (struct field)); |
| |
| if (!TYPE_STUB (domain_type)) |
| { |
| LONGEST low_bound, high_bound, bit_length; |
| if (get_discrete_bounds (domain_type, &low_bound, &high_bound) < 0) |
| low_bound = high_bound = 0; |
| bit_length = high_bound - low_bound + 1; |
| TYPE_LENGTH (result_type) |
| = (bit_length + TARGET_CHAR_BIT - 1) / TARGET_CHAR_BIT; |
| if (low_bound >= 0) |
| TYPE_FLAGS (result_type) |= TYPE_FLAG_UNSIGNED; |
| } |
| TYPE_FIELD_TYPE (result_type, 0) = domain_type; |
| |
| return (result_type); |
| } |
| |
| void |
| append_flags_type_flag (struct type *type, int bitpos, char *name) |
| { |
| gdb_assert (TYPE_CODE (type) == TYPE_CODE_FLAGS); |
| gdb_assert (bitpos < TYPE_NFIELDS (type)); |
| gdb_assert (bitpos >= 0); |
| |
| if (name) |
| { |
| TYPE_FIELD_NAME (type, bitpos) = xstrdup (name); |
| TYPE_FIELD_BITPOS (type, bitpos) = bitpos; |
| } |
| else |
| { |
| /* Don't show this field to the user. */ |
| TYPE_FIELD_BITPOS (type, bitpos) = -1; |
| } |
| } |
| |
| struct type * |
| init_flags_type (char *name, int length) |
| { |
| int nfields = length * TARGET_CHAR_BIT; |
| struct type *type; |
| |
| type = init_type (TYPE_CODE_FLAGS, length, |
| TYPE_FLAG_UNSIGNED, name, NULL); |
| TYPE_NFIELDS (type) = nfields; |
| TYPE_FIELDS (type) = TYPE_ALLOC (type, |
| nfields * sizeof (struct field)); |
| memset (TYPE_FIELDS (type), 0, nfields * sizeof (struct field)); |
| |
| return type; |
| } |
| |
| /* Convert ARRAY_TYPE to a vector type. This may modify ARRAY_TYPE |
| and any array types nested inside it. */ |
| |
| void |
| make_vector_type (struct type *array_type) |
| { |
| struct type *inner_array, *elt_type; |
| int flags; |
| |
| /* Find the innermost array type, in case the array is |
| multi-dimensional. */ |
| inner_array = array_type; |
| while (TYPE_CODE (TYPE_TARGET_TYPE (inner_array)) == TYPE_CODE_ARRAY) |
| inner_array = TYPE_TARGET_TYPE (inner_array); |
| |
| elt_type = TYPE_TARGET_TYPE (inner_array); |
| if (TYPE_CODE (elt_type) == TYPE_CODE_INT) |
| { |
| flags = TYPE_INSTANCE_FLAGS (elt_type) | TYPE_FLAG_NOTTEXT; |
| elt_type = make_qualified_type (elt_type, flags, NULL); |
| TYPE_TARGET_TYPE (inner_array) = elt_type; |
| } |
| |
| TYPE_FLAGS (array_type) |= TYPE_FLAG_VECTOR; |
| } |
| |
| struct type * |
| init_vector_type (struct type *elt_type, int n) |
| { |
| struct type *array_type; |
| |
| array_type = create_array_type (0, elt_type, |
| create_range_type (0, |
| builtin_type_int32, |
| 0, n-1)); |
| make_vector_type (array_type); |
| return array_type; |
| } |
| |
| /* Smash TYPE to be a type of pointers to members of DOMAIN with type |
| TO_TYPE. A member pointer is a wierd thing -- it amounts to a |
| typed offset into a struct, e.g. "an int at offset 8". A MEMBER |
| TYPE doesn't include the offset (that's the value of the MEMBER |
| itself), but does include the structure type into which it points |
| (for some reason). |
| |
| When "smashing" the type, we preserve the objfile that the old type |
| pointed to, since we aren't changing where the type is actually |
| allocated. */ |
| |
| void |
| smash_to_memberptr_type (struct type *type, struct type *domain, |
| struct type *to_type) |
| { |
| struct objfile *objfile; |
| |
| objfile = TYPE_OBJFILE (type); |
| |
| smash_type (type); |
| TYPE_OBJFILE (type) = objfile; |
| TYPE_TARGET_TYPE (type) = to_type; |
| TYPE_DOMAIN_TYPE (type) = domain; |
| /* Assume that a data member pointer is the same size as a normal |
| pointer. */ |
| TYPE_LENGTH (type) = gdbarch_ptr_bit (current_gdbarch) / TARGET_CHAR_BIT; |
| TYPE_CODE (type) = TYPE_CODE_MEMBERPTR; |
| } |
| |
| /* Smash TYPE to be a type of method of DOMAIN with type TO_TYPE. |
| METHOD just means `function that gets an extra "this" argument'. |
| |
| When "smashing" the type, we preserve the objfile that the old type |
| pointed to, since we aren't changing where the type is actually |
| allocated. */ |
| |
| void |
| smash_to_method_type (struct type *type, struct type *domain, |
| struct type *to_type, struct field *args, |
| int nargs, int varargs) |
| { |
| struct objfile *objfile; |
| |
| objfile = TYPE_OBJFILE (type); |
| |
| smash_type (type); |
| TYPE_OBJFILE (type) = objfile; |
| TYPE_TARGET_TYPE (type) = to_type; |
| TYPE_DOMAIN_TYPE (type) = domain; |
| TYPE_FIELDS (type) = args; |
| TYPE_NFIELDS (type) = nargs; |
| if (varargs) |
| TYPE_FLAGS (type) |= TYPE_FLAG_VARARGS; |
| TYPE_LENGTH (type) = 1; /* In practice, this is never needed. */ |
| TYPE_CODE (type) = TYPE_CODE_METHOD; |
| } |
| |
| /* Return a typename for a struct/union/enum type without "struct ", |
| "union ", or "enum ". If the type has a NULL name, return NULL. */ |
| |
| char * |
| type_name_no_tag (const struct type *type) |
| { |
| if (TYPE_TAG_NAME (type) != NULL) |
| return TYPE_TAG_NAME (type); |
| |
| /* Is there code which expects this to return the name if there is |
| no tag name? My guess is that this is mainly used for C++ in |
| cases where the two will always be the same. */ |
| return TYPE_NAME (type); |
| } |
| |
| /* Lookup a typedef or primitive type named NAME, visible in lexical |
| block BLOCK. If NOERR is nonzero, return zero if NAME is not |
| suitably defined. */ |
| |
| struct type * |
| lookup_typename (char *name, struct block *block, int noerr) |
| { |
| struct symbol *sym; |
| struct type *tmp; |
| |
| sym = lookup_symbol (name, block, VAR_DOMAIN, 0, |
| (struct symtab **) NULL); |
| if (sym == NULL || SYMBOL_CLASS (sym) != LOC_TYPEDEF) |
| { |
| tmp = language_lookup_primitive_type_by_name (current_language, |
| current_gdbarch, |
| name); |
| if (tmp) |
| { |
| return (tmp); |
| } |
| else if (!tmp && noerr) |
| { |
| return (NULL); |
| } |
| else |
| { |
| error (_("No type named %s."), name); |
| } |
| } |
| return (SYMBOL_TYPE (sym)); |
| } |
| |
| struct type * |
| lookup_unsigned_typename (char *name) |
| { |
| char *uns = alloca (strlen (name) + 10); |
| |
| strcpy (uns, "unsigned "); |
| strcpy (uns + 9, name); |
| return (lookup_typename (uns, (struct block *) NULL, 0)); |
| } |
| |
| struct type * |
| lookup_signed_typename (char *name) |
| { |
| struct type *t; |
| char *uns = alloca (strlen (name) + 8); |
| |
| strcpy (uns, "signed "); |
| strcpy (uns + 7, name); |
| t = lookup_typename (uns, (struct block *) NULL, 1); |
| /* If we don't find "signed FOO" just try again with plain "FOO". */ |
| if (t != NULL) |
| return t; |
| return lookup_typename (name, (struct block *) NULL, 0); |
| } |
| |
| /* Lookup a structure type named "struct NAME", |
| visible in lexical block BLOCK. */ |
| |
| struct type * |
| lookup_struct (char *name, struct block *block) |
| { |
| struct symbol *sym; |
| |
| sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0, |
| (struct symtab **) NULL); |
| |
| if (sym == NULL) |
| { |
| error (_("No struct type named %s."), name); |
| } |
| if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT) |
| { |
| error (_("This context has class, union or enum %s, not a struct."), |
| name); |
| } |
| return (SYMBOL_TYPE (sym)); |
| } |
| |
| /* Lookup a union type named "union NAME", |
| visible in lexical block BLOCK. */ |
| |
| struct type * |
| lookup_union (char *name, struct block *block) |
| { |
| struct symbol *sym; |
| struct type *t; |
| |
| sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0, |
| (struct symtab **) NULL); |
| |
| if (sym == NULL) |
| error (_("No union type named %s."), name); |
| |
| t = SYMBOL_TYPE (sym); |
| |
| if (TYPE_CODE (t) == TYPE_CODE_UNION) |
| return (t); |
| |
| /* C++ unions may come out with TYPE_CODE_CLASS, but we look at |
| * a further "declared_type" field to discover it is really a union. |
| */ |
| if (HAVE_CPLUS_STRUCT (t)) |
| if (TYPE_DECLARED_TYPE (t) == DECLARED_TYPE_UNION) |
| return (t); |
| |
| /* If we get here, it's not a union. */ |
| error (_("This context has class, struct or enum %s, not a union."), |
| name); |
| } |
| |
| |
| /* Lookup an enum type named "enum NAME", |
| visible in lexical block BLOCK. */ |
| |
| struct type * |
| lookup_enum (char *name, struct block *block) |
| { |
| struct symbol *sym; |
| |
| sym = lookup_symbol (name, block, STRUCT_DOMAIN, 0, |
| (struct symtab **) NULL); |
| if (sym == NULL) |
| { |
| error (_("No enum type named %s."), name); |
| } |
| if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_ENUM) |
| { |
| error (_("This context has class, struct or union %s, not an enum."), |
| name); |
| } |
| return (SYMBOL_TYPE (sym)); |
| } |
| |
| /* Lookup a template type named "template NAME<TYPE>", |
| visible in lexical block BLOCK. */ |
| |
| struct type * |
| lookup_template_type (char *name, struct type *type, |
| struct block *block) |
| { |
| struct symbol *sym; |
| char *nam = (char *) |
| alloca (strlen (name) + strlen (TYPE_NAME (type)) + 4); |
| strcpy (nam, name); |
| strcat (nam, "<"); |
| strcat (nam, TYPE_NAME (type)); |
| strcat (nam, " >"); /* FIXME, extra space still introduced in gcc? */ |
| |
| sym = lookup_symbol (nam, block, VAR_DOMAIN, 0, |
| (struct symtab **) NULL); |
| |
| if (sym == NULL) |
| { |
| error (_("No template type named %s."), name); |
| } |
| if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_STRUCT) |
| { |
| error (_("This context has class, union or enum %s, not a struct."), |
| name); |
| } |
| return (SYMBOL_TYPE (sym)); |
| } |
| |
| /* Given a type TYPE, lookup the type of the component of type named |
| NAME. |
| |
| TYPE can be either a struct or union, or a pointer or reference to |
| a struct or union. If it is a pointer or reference, its target |
| type is automatically used. Thus '.' and '->' are interchangable, |
| as specified for the definitions of the expression element types |
| STRUCTOP_STRUCT and STRUCTOP_PTR. |
| |
| If NOERR is nonzero, return zero if NAME is not suitably defined. |
| If NAME is the name of a baseclass type, return that type. */ |
| |
| struct type * |
| lookup_struct_elt_type (struct type *type, char *name, int noerr) |
| { |
| int i; |
| |
| for (;;) |
| { |
| CHECK_TYPEDEF (type); |
| if (TYPE_CODE (type) != TYPE_CODE_PTR |
| && TYPE_CODE (type) != TYPE_CODE_REF) |
| break; |
| type = TYPE_TARGET_TYPE (type); |
| } |
| |
| if (TYPE_CODE (type) != TYPE_CODE_STRUCT |
| && TYPE_CODE (type) != TYPE_CODE_UNION) |
| { |
| target_terminal_ours (); |
| gdb_flush (gdb_stdout); |
| fprintf_unfiltered (gdb_stderr, "Type "); |
| type_print (type, "", gdb_stderr, -1); |
| error (_(" is not a structure or union type.")); |
| } |
| |
| #if 0 |
| /* FIXME: This change put in by Michael seems incorrect for the case |
| where the structure tag name is the same as the member name. |
| I.E. when doing "ptype bell->bar" for "struct foo { int bar; int |
| foo; } bell;" Disabled by fnf. */ |
| { |
| char *typename; |
| |
| typename = type_name_no_tag (type); |
| if (typename != NULL && strcmp (typename, name) == 0) |
| return type; |
| } |
| #endif |
| |
| for (i = TYPE_NFIELDS (type) - 1; i >= TYPE_N_BASECLASSES (type); i--) |
| { |
| char *t_field_name = TYPE_FIELD_NAME (type, i); |
| |
| if (t_field_name && (strcmp_iw (t_field_name, name) == 0)) |
| { |
| return TYPE_FIELD_TYPE (type, i); |
| } |
| } |
| |
| /* OK, it's not in this class. Recursively check the baseclasses. */ |
| for (i = TYPE_N_BASECLASSES (type) - 1; i >= 0; i--) |
| { |
| struct type *t; |
| |
| t = lookup_struct_elt_type (TYPE_BASECLASS (type, i), name, 1); |
| if (t != NULL) |
| { |
| return t; |
| } |
| } |
| |
| if (noerr) |
| { |
| return NULL; |
| } |
| |
| target_terminal_ours (); |
| gdb_flush (gdb_stdout); |
| fprintf_unfiltered (gdb_stderr, "Type "); |
| type_print (type, "", gdb_stderr, -1); |
| fprintf_unfiltered (gdb_stderr, " has no component named "); |
| fputs_filtered (name, gdb_stderr); |
| error ((".")); |
| return (struct type *) -1; /* For lint */ |
| } |
| |
| /* Lookup the vptr basetype/fieldno values for TYPE. |
| If found store vptr_basetype in *BASETYPEP if non-NULL, and return |
| vptr_fieldno. Also, if found and basetype is from the same objfile, |
| cache the results. |
| If not found, return -1 and ignore BASETYPEP. |
| Callers should be aware that in some cases (for example, |
| the type or one of its baseclasses is a stub type and we are |
| debugging a .o file), this function will not be able to find the |
| virtual function table pointer, and vptr_fieldno will remain -1 and |
| vptr_basetype will remain NULL or incomplete. */ |
| |
| int |
| get_vptr_fieldno (struct type *type, struct type **basetypep) |
| { |
| CHECK_TYPEDEF (type); |
| |
| if (TYPE_VPTR_FIELDNO (type) < 0) |
| { |
| int i; |
| |
| /* We must start at zero in case the first (and only) baseclass |
| is virtual (and hence we cannot share the table pointer). */ |
| for (i = 0; i < TYPE_N_BASECLASSES (type); i++) |
| { |
| struct type *baseclass = check_typedef (TYPE_BASECLASS (type, i)); |
| int fieldno; |
| struct type *basetype; |
| |
| fieldno = get_vptr_fieldno (baseclass, &basetype); |
| if (fieldno >= 0) |
| { |
| /* If the type comes from a different objfile we can't cache |
| it, it may have a different lifetime. PR 2384 */ |
| if (TYPE_OBJFILE (type) == TYPE_OBJFILE (baseclass)) |
| { |
| TYPE_VPTR_FIELDNO (type) = fieldno; |
| TYPE_VPTR_BASETYPE (type) = basetype; |
| } |
| if (basetypep) |
| *basetypep = basetype; |
| return fieldno; |
| } |
| } |
| |
| /* Not found. */ |
| return -1; |
| } |
| else |
| { |
| if (basetypep) |
| *basetypep = TYPE_VPTR_BASETYPE (type); |
| return TYPE_VPTR_FIELDNO (type); |
| } |
| } |
| |
| /* Find the method and field indices for the destructor in class type T. |
| Return 1 if the destructor was found, otherwise, return 0. */ |
| |
| int |
| get_destructor_fn_field (struct type *t, |
| int *method_indexp, |
| int *field_indexp) |
| { |
| int i; |
| |
| for (i = 0; i < TYPE_NFN_FIELDS (t); i++) |
| { |
| int j; |
| struct fn_field *f = TYPE_FN_FIELDLIST1 (t, i); |
| |
| for (j = 0; j < TYPE_FN_FIELDLIST_LENGTH (t, i); j++) |
| { |
| if (is_destructor_name (TYPE_FN_FIELD_PHYSNAME (f, j)) != 0) |
| { |
| *method_indexp = i; |
| *field_indexp = j; |
| return 1; |
| } |
| } |
| } |
| return 0; |
| } |
| |
| static void |
| stub_noname_complaint (void) |
| { |
| complaint (&symfile_complaints, _("stub type has NULL name")); |
| } |
| |
| /* Added by Bryan Boreham, Kewill, Sun Sep 17 18:07:17 1989. |
| |
| If this is a stubbed struct (i.e. declared as struct foo *), see if |
| we can find a full definition in some other file. If so, copy this |
| definition, so we can use it in future. There used to be a comment |
| (but not any code) that if we don't find a full definition, we'd |
| set a flag so we don't spend time in the future checking the same |
| type. That would be a mistake, though--we might load in more |
| symbols which contain a full definition for the type. |
| |
| This used to be coded as a macro, but I don't think it is called |
| often enough to merit such treatment. */ |
| |
| /* Find the real type of TYPE. This function returns the real type, |
| after removing all layers of typedefs and completing opaque or stub |
| types. Completion changes the TYPE argument, but stripping of |
| typedefs does not. */ |
| |
| struct type * |
| check_typedef (struct type *type) |
| { |
| struct type *orig_type = type; |
| int is_const, is_volatile; |
| |
| gdb_assert (type); |
| |
| while (TYPE_CODE (type) == TYPE_CODE_TYPEDEF) |
| { |
| if (!TYPE_TARGET_TYPE (type)) |
| { |
| char *name; |
| struct symbol *sym; |
| |
| /* It is dangerous to call lookup_symbol if we are currently |
| reading a symtab. Infinite recursion is one danger. */ |
| if (currently_reading_symtab) |
| return type; |
| |
| name = type_name_no_tag (type); |
| /* FIXME: shouldn't we separately check the TYPE_NAME and |
| the TYPE_TAG_NAME, and look in STRUCT_DOMAIN and/or |
| VAR_DOMAIN as appropriate? (this code was written before |
| TYPE_NAME and TYPE_TAG_NAME were separate). */ |
| if (name == NULL) |
| { |
| stub_noname_complaint (); |
| return type; |
| } |
| sym = lookup_symbol (name, 0, STRUCT_DOMAIN, 0, |
| (struct symtab **) NULL); |
| if (sym) |
| TYPE_TARGET_TYPE (type) = SYMBOL_TYPE (sym); |
| else /* TYPE_CODE_UNDEF */ |
| TYPE_TARGET_TYPE (type) = alloc_type (NULL); |
| } |
| type = TYPE_TARGET_TYPE (type); |
| } |
| |
| is_const = TYPE_CONST (type); |
| is_volatile = TYPE_VOLATILE (type); |
| |
| /* If this is a struct/class/union with no fields, then check |
| whether a full definition exists somewhere else. This is for |
| systems where a type definition with no fields is issued for such |
| types, instead of identifying them as stub types in the first |
| place. */ |
| |
| if (TYPE_IS_OPAQUE (type) |
| && opaque_type_resolution |
| && !currently_reading_symtab) |
| { |
| char *name = type_name_no_tag (type); |
| struct type *newtype; |
| if (name == NULL) |
| { |
| stub_noname_complaint (); |
| return type; |
| } |
| newtype = lookup_transparent_type (name); |
| |
| if (newtype) |
| { |
| /* If the resolved type and the stub are in the same |
| objfile, then replace the stub type with the real deal. |
| But if they're in separate objfiles, leave the stub |
| alone; we'll just look up the transparent type every time |
| we call check_typedef. We can't create pointers between |
| types allocated to different objfiles, since they may |
| have different lifetimes. Trying to copy NEWTYPE over to |
| TYPE's objfile is pointless, too, since you'll have to |
| move over any other types NEWTYPE refers to, which could |
| be an unbounded amount of stuff. */ |
| if (TYPE_OBJFILE (newtype) == TYPE_OBJFILE (type)) |
| make_cv_type (is_const, is_volatile, newtype, &type); |
| else |
| type = newtype; |
| } |
| } |
| /* Otherwise, rely on the stub flag being set for opaque/stubbed |
| types. */ |
| else if (TYPE_STUB (type) && !currently_reading_symtab) |
| { |
| char *name = type_name_no_tag (type); |
| /* FIXME: shouldn't we separately check the TYPE_NAME and the |
| TYPE_TAG_NAME, and look in STRUCT_DOMAIN and/or VAR_DOMAIN |
| as appropriate? (this code was written before TYPE_NAME and |
| TYPE_TAG_NAME were separate). */ |
| struct symbol *sym; |
| if (name == NULL) |
| { |
| stub_noname_complaint (); |
| return type; |
| } |
| sym = lookup_symbol (name, 0, STRUCT_DOMAIN, |
| 0, (struct symtab **) NULL); |
| if (sym) |
| { |
| /* Same as above for opaque types, we can replace the stub |
| with the complete type only if they are int the same |
| objfile. */ |
| if (TYPE_OBJFILE (SYMBOL_TYPE(sym)) == TYPE_OBJFILE (type)) |
| make_cv_type (is_const, is_volatile, |
| SYMBOL_TYPE (sym), &type); |
| else |
| type = SYMBOL_TYPE (sym); |
| } |
| } |
| |
| if (TYPE_TARGET_STUB (type)) |
| { |
| struct type *range_type; |
| struct type *target_type = check_typedef (TYPE_TARGET_TYPE (type)); |
| |
| if (TYPE_STUB (target_type) || TYPE_TARGET_STUB (target_type)) |
| { |
| /* Empty. */ |
| } |
| else if (TYPE_CODE (type) == TYPE_CODE_ARRAY |
| && TYPE_NFIELDS (type) == 1 |
| && (TYPE_CODE (range_type = TYPE_FIELD_TYPE (type, 0)) |
| == TYPE_CODE_RANGE)) |
| { |
| /* Now recompute the length of the array type, based on its |
| number of elements and the target type's length. |
| Watch out for Ada null Ada arrays where the high bound |
| is smaller than the low bound. */ |
| const int low_bound = TYPE_FIELD_BITPOS (range_type, 0); |
| const int high_bound = TYPE_FIELD_BITPOS (range_type, 1); |
| int nb_elements; |
| |
| if (high_bound < low_bound) |
| nb_elements = 0; |
| else |
| nb_elements = high_bound - low_bound + 1; |
| |
| TYPE_LENGTH (type) = nb_elements * TYPE_LENGTH (target_type); |
| TYPE_FLAGS (type) &= ~TYPE_FLAG_TARGET_STUB; |
| } |
| else if (TYPE_CODE (type) == TYPE_CODE_RANGE) |
| { |
| TYPE_LENGTH (type) = TYPE_LENGTH (target_type); |
| TYPE_FLAGS (type) &= ~TYPE_FLAG_TARGET_STUB; |
| } |
| } |
| /* Cache TYPE_LENGTH for future use. */ |
| TYPE_LENGTH (orig_type) = TYPE_LENGTH (type); |
| return type; |
| } |
| |
| /* Parse a type expression in the string [P..P+LENGTH). If an error |
| occurs, silently return builtin_type_void. */ |
| |
| static struct type * |
| safe_parse_type (char *p, int length) |
| { |
| struct ui_file *saved_gdb_stderr; |
| struct type *type; |
| |
| /* Suppress error messages. */ |
| saved_gdb_stderr = gdb_stderr; |
| gdb_stderr = ui_file_new (); |
| |
| /* Call parse_and_eval_type() without fear of longjmp()s. */ |
| if (!gdb_parse_and_eval_type (p, length, &type)) |
| type = builtin_type_void; |
| |
| /* Stop suppressing error messages. */ |
| ui_file_delete (gdb_stderr); |
| gdb_stderr = saved_gdb_stderr; |
| |
| return type; |
| } |
| |
| /* Ugly hack to convert method stubs into method types. |
| |
| He ain't kiddin'. This demangles the name of the method into a |
| string including argument types, parses out each argument type, |
| generates a string casting a zero to that type, evaluates the |
| string, and stuffs the resulting type into an argtype vector!!! |
| Then it knows the type of the whole function (including argument |
| types for overloading), which info used to be in the stab's but was |
| removed to hack back the space required for them. */ |
| |
| static void |
| check_stub_method (struct type *type, int method_id, int signature_id) |
| { |
| struct fn_field *f; |
| char *mangled_name = gdb_mangle_name (type, method_id, signature_id); |
| char *demangled_name = cplus_demangle (mangled_name, |
| DMGL_PARAMS | DMGL_ANSI); |
| char *argtypetext, *p; |
| int depth = 0, argcount = 1; |
| struct field *argtypes; |
| struct type *mtype; |
| |
| /* Make sure we got back a function string that we can use. */ |
| if (demangled_name) |
| p = strchr (demangled_name, '('); |
| else |
| p = NULL; |
| |
| if (demangled_name == NULL || p == NULL) |
| error (_("Internal: Cannot demangle mangled name `%s'."), |
| mangled_name); |
| |
| /* Now, read in the parameters that define this type. */ |
| p += 1; |
| argtypetext = p; |
| while (*p) |
| { |
| if (*p == '(' || *p == '<') |
| { |
| depth += 1; |
| } |
| else if (*p == ')' || *p == '>') |
| { |
| depth -= 1; |
| } |
| else if (*p == ',' && depth == 0) |
| { |
| argcount += 1; |
| } |
| |
| p += 1; |
| } |
| |
| /* If we read one argument and it was ``void'', don't count it. */ |
| if (strncmp (argtypetext, "(void)", 6) == 0) |
| argcount -= 1; |
| |
| /* We need one extra slot, for the THIS pointer. */ |
| |
| argtypes = (struct field *) |
| TYPE_ALLOC (type, (argcount + 1) * sizeof (struct field)); |
| p = argtypetext; |
| |
| /* Add THIS pointer for non-static methods. */ |
| f = TYPE_FN_FIELDLIST1 (type, method_id); |
| if (TYPE_FN_FIELD_STATIC_P (f, signature_id)) |
| argcount = 0; |
| else |
| { |
| argtypes[0].type = lookup_pointer_type (type); |
| argcount = 1; |
| } |
| |
| if (*p != ')') /* () means no args, skip while */ |
| { |
| depth = 0; |
| while (*p) |
| { |
| if (depth <= 0 && (*p == ',' || *p == ')')) |
| { |
| /* Avoid parsing of ellipsis, they will be handled below. |
| Also avoid ``void'' as above. */ |
| if (strncmp (argtypetext, "...", p - argtypetext) != 0 |
| && strncmp (argtypetext, "void", p - argtypetext) != 0) |
| { |
| argtypes[argcount].type = |
| safe_parse_type (argtypetext, p - argtypetext); |
| argcount += 1; |
| } |
| argtypetext = p + 1; |
| } |
| |
| if (*p == '(' || *p == '<') |
| { |
| depth += 1; |
| } |
| else if (*p == ')' || *p == '>') |
| { |
| depth -= 1; |
| } |
| |
| p += 1; |
| } |
| } |
| |
| TYPE_FN_FIELD_PHYSNAME (f, signature_id) = mangled_name; |
| |
| /* Now update the old "stub" type into a real type. */ |
| mtype = TYPE_FN_FIELD_TYPE (f, signature_id); |
| TYPE_DOMAIN_TYPE (mtype) = type; |
| TYPE_FIELDS (mtype) = argtypes; |
| TYPE_NFIELDS (mtype) = argcount; |
| TYPE_FLAGS (mtype) &= ~TYPE_FLAG_STUB; |
| TYPE_FN_FIELD_STUB (f, signature_id) = 0; |
| if (p[-2] == '.') |
| TYPE_FLAGS (mtype) |= TYPE_FLAG_VARARGS; |
| |
| xfree (demangled_name); |
| } |
| |
| /* This is the external interface to check_stub_method, above. This |
| function unstubs all of the signatures for TYPE's METHOD_ID method |
| name. After calling this function TYPE_FN_FIELD_STUB will be |
| cleared for each signature and TYPE_FN_FIELDLIST_NAME will be |
| correct. |
| |
| This function unfortunately can not die until stabs do. */ |
| |
| void |
| check_stub_method_group (struct type *type, int method_id) |
| { |
| int len = TYPE_FN_FIELDLIST_LENGTH (type, method_id); |
| struct fn_field *f = TYPE_FN_FIELDLIST1 (type, method_id); |
| int j, found_stub = 0; |
| |
| for (j = 0; j < len; j++) |
| if (TYPE_FN_FIELD_STUB (f, j)) |
| { |
| found_stub = 1; |
| check_stub_method (type, method_id, j); |
| } |
| |
| /* GNU v3 methods with incorrect names were corrected when we read |
| in type information, because it was cheaper to do it then. The |
| only GNU v2 methods with incorrect method names are operators and |
| destructors; destructors were also corrected when we read in type |
| information. |
| |
| Therefore the only thing we need to handle here are v2 operator |
| names. */ |
| if (found_stub && strncmp (TYPE_FN_FIELD_PHYSNAME (f, 0), "_Z", 2) != 0) |
| { |
| int ret; |
| char dem_opname[256]; |
| |
| ret = cplus_demangle_opname (TYPE_FN_FIELDLIST_NAME (type, |
| method_id), |
| dem_opname, DMGL_ANSI); |
| if (!ret) |
| ret = cplus_demangle_opname (TYPE_FN_FIELDLIST_NAME (type, |
| method_id), |
| dem_opname, 0); |
| if (ret) |
| TYPE_FN_FIELDLIST_NAME (type, method_id) = xstrdup (dem_opname); |
| } |
| } |
| |
| const struct cplus_struct_type cplus_struct_default; |
| |
| void |
| allocate_cplus_struct_type (struct type *type) |
| { |
| if (!HAVE_CPLUS_STRUCT (type)) |
| { |
| TYPE_CPLUS_SPECIFIC (type) = (struct cplus_struct_type *) |
| TYPE_ALLOC (type, sizeof (struct cplus_struct_type)); |
| *(TYPE_CPLUS_SPECIFIC (type)) = cplus_struct_default; |
| } |
| } |
| |
| /* Helper function to initialize the standard scalar types. |
| |
| If NAME is non-NULL and OBJFILE is non-NULL, then we make a copy of |
| the string pointed to by name in the objfile_obstack for that |
| objfile, and initialize the type name to that copy. There are |
| places (mipsread.c in particular, where init_type is called with a |
| NULL value for NAME). */ |
| |
| struct type * |
| init_type (enum type_code code, int length, int flags, |
| char *name, struct objfile *objfile) |
| { |
| struct type *type; |
| |
| type = alloc_type (objfile); |
| TYPE_CODE (type) = code; |
| TYPE_LENGTH (type) = length; |
| TYPE_FLAGS (type) |= flags; |
| if ((name != NULL) && (objfile != NULL)) |
| { |
| TYPE_NAME (type) = obsavestring (name, strlen (name), |
| &objfile->objfile_obstack); |
| } |
| else |
| { |
| TYPE_NAME (type) = name; |
| } |
| |
| /* C++ fancies. */ |
| |
| if (name && strcmp (name, "char") == 0) |
| TYPE_FLAGS (type) |= TYPE_FLAG_NOSIGN; |
| |
| if (code == TYPE_CODE_STRUCT || code == TYPE_CODE_UNION |
| || code == TYPE_CODE_NAMESPACE) |
| { |
| INIT_CPLUS_SPECIFIC (type); |
| } |
| return (type); |
| } |
| |
| /* Helper function. Create an empty composite type. */ |
| |
| struct type * |
| init_composite_type (char *name, enum type_code code) |
| { |
| struct type *t; |
| gdb_assert (code == TYPE_CODE_STRUCT |
| || code == TYPE_CODE_UNION); |
| t = init_type (code, 0, 0, NULL, NULL); |
| TYPE_TAG_NAME (t) = name; |
| return t; |
| } |
| |
| /* Helper function. Append a field to a composite type. */ |
| |
| void |
| append_composite_type_field (struct type *t, char *name, |
| struct type *field) |
| { |
| struct field *f; |
| TYPE_NFIELDS (t) = TYPE_NFIELDS (t) + 1; |
| TYPE_FIELDS (t) = xrealloc (TYPE_FIELDS (t), |
| sizeof (struct field) * TYPE_NFIELDS (t)); |
| f = &(TYPE_FIELDS (t)[TYPE_NFIELDS (t) - 1]); |
| memset (f, 0, sizeof f[0]); |
| FIELD_TYPE (f[0]) = field; |
| FIELD_NAME (f[0]) = name; |
| if (TYPE_CODE (t) == TYPE_CODE_UNION) |
| { |
| if (TYPE_LENGTH (t) < TYPE_LENGTH (field)) |
| TYPE_LENGTH (t) = TYPE_LENGTH (field); |
| } |
| else if (TYPE_CODE (t) == TYPE_CODE_STRUCT) |
| { |
| TYPE_LENGTH (t) = TYPE_LENGTH (t) + TYPE_LENGTH (field); |
| if (TYPE_NFIELDS (t) > 1) |
| { |
| FIELD_BITPOS (f[0]) = (FIELD_BITPOS (f[-1]) |
| + TYPE_LENGTH (field) * TARGET_CHAR_BIT); |
| } |
| } |
| } |
| |
| int |
| can_dereference (struct type *t) |
| { |
| /* FIXME: Should we return true for references as well as |
| pointers? */ |
| CHECK_TYPEDEF (t); |
| return |
| (t != NULL |
| && TYPE_CODE (t) == TYPE_CODE_PTR |
| && TYPE_CODE (TYPE_TARGET_TYPE (t)) != TYPE_CODE_VOID); |
| } |
| |
| int |
| is_integral_type (struct type *t) |
| { |
| CHECK_TYPEDEF (t); |
| return |
| ((t != NULL) |
| && ((TYPE_CODE (t) == TYPE_CODE_INT) |
| || (TYPE_CODE (t) == TYPE_CODE_ENUM) |
| || (TYPE_CODE (t) == TYPE_CODE_FLAGS) |
| || (TYPE_CODE (t) == TYPE_CODE_CHAR) |
| || (TYPE_CODE (t) == TYPE_CODE_RANGE) |
| || (TYPE_CODE (t) == TYPE_CODE_BOOL))); |
| } |
| |
| /* Check whether BASE is an ancestor or base class or DCLASS |
| Return 1 if so, and 0 if not. |
| Note: callers may want to check for identity of the types before |
| calling this function -- identical types are considered to satisfy |
| the ancestor relationship even if they're identical. */ |
| |
| int |
| is_ancestor (struct type *base, struct type *dclass) |
| { |
| int i; |
| |
| CHECK_TYPEDEF (base); |
| CHECK_TYPEDEF (dclass); |
| |
| if (base == dclass) |
| return 1; |
| if (TYPE_NAME (base) && TYPE_NAME (dclass) |
| && !strcmp (TYPE_NAME (base), TYPE_NAME (dclass))) |
| return 1; |
| |
| for (i = 0; i < TYPE_N_BASECLASSES (dclass); i++) |
| if (is_ancestor (base, TYPE_BASECLASS (dclass, i))) |
| return 1; |
| |
| return 0; |
| } |
| |
| |
| |
| /* Functions for overload resolution begin here */ |
| |
| /* Compare two badness vectors A and B and return the result. |
| 0 => A and B are identical |
| 1 => A and B are incomparable |
| 2 => A is better than B |
| 3 => A is worse than B */ |
| |
| int |
| compare_badness (struct badness_vector *a, struct badness_vector *b) |
| { |
| int i; |
| int tmp; |
| short found_pos = 0; /* any positives in c? */ |
| short found_neg = 0; /* any negatives in c? */ |
| |
| /* differing lengths => incomparable */ |
| if (a->length != b->length) |
| return 1; |
| |
| /* Subtract b from a */ |
| for (i = 0; i < a->length; i++) |
| { |
| tmp = a->rank[i] - b->rank[i]; |
| if (tmp > 0) |
| found_pos = 1; |
| else if (tmp < 0) |
| found_neg = 1; |
| } |
| |
| if (found_pos) |
| { |
| if (found_neg) |
| return 1; /* incomparable */ |
| else |
| return 3; /* A > B */ |
| } |
| else |
| /* no positives */ |
| { |
| if (found_neg) |
| return 2; /* A < B */ |
| else |
| return 0; /* A == B */ |
| } |
| } |
| |
| /* Rank a function by comparing its parameter types (PARMS, length |
| NPARMS), to the types of an argument list (ARGS, length NARGS). |
| Return a pointer to a badness vector. This has NARGS + 1 |
| entries. */ |
| |
| struct badness_vector * |
| rank_function (struct type **parms, int nparms, |
| struct type **args, int nargs) |
| { |
| int i; |
| struct badness_vector *bv; |
| int min_len = nparms < nargs ? nparms : nargs; |
| |
| bv = xmalloc (sizeof (struct badness_vector)); |
| bv->length = nargs + 1; /* add 1 for the length-match rank */ |
| bv->rank = xmalloc ((nargs + 1) * sizeof (int)); |
| |
| /* First compare the lengths of the supplied lists. |
| If there is a mismatch, set it to a high value. */ |
| |
| /* pai/1997-06-03 FIXME: when we have debug info about default |
| arguments and ellipsis parameter lists, we should consider those |
| and rank the length-match more finely. */ |
| |
| LENGTH_MATCH (bv) = (nargs != nparms) ? LENGTH_MISMATCH_BADNESS : 0; |
| |
| /* Now rank all the parameters of the candidate function */ |
| for (i = 1; i <= min_len; i++) |
| bv->rank[i] = rank_one_type (parms[i-1], args[i-1]); |
| |
| /* If more arguments than parameters, add dummy entries */ |
| for (i = min_len + 1; i <= nargs; i++) |
| bv->rank[i] = TOO_FEW_PARAMS_BADNESS; |
| |
| return bv; |
| } |
| |
| /* Compare the names of two integer types, assuming that any sign |
| qualifiers have been checked already. We do it this way because |
| there may be an "int" in the name of one of the types. */ |
| |
| static int |
| integer_types_same_name_p (const char *first, const char *second) |
| { |
| int first_p, second_p; |
| |
| /* If both are shorts, return 1; if neither is a short, keep |
| checking. */ |
| first_p = (strstr (first, "short") != NULL); |
| second_p = (strstr (second, "short") != NULL); |
| if (first_p && second_p) |
| return 1; |
| if (first_p || second_p) |
| return 0; |
| |
| /* Likewise for long. */ |
| first_p = (strstr (first, "long") != NULL); |
| second_p = (strstr (second, "long") != NULL); |
| if (first_p && second_p) |
| return 1; |
| if (first_p || second_p) |
| return 0; |
| |
| /* Likewise for char. */ |
| first_p = (strstr (first, "char") != NULL); |
| second_p = (strstr (second, "char") != NULL); |
| if (first_p && second_p) |
| return 1; |
| if (first_p || second_p) |
| return 0; |
| |
| /* They must both be ints. */ |
| return 1; |
| } |
| |
| /* Compare one type (PARM) for compatibility with another (ARG). |
| * PARM is intended to be the parameter type of a function; and |
| * ARG is the supplied argument's type. This function tests if |
| * the latter can be converted to the former. |
| * |
| * Return 0 if they are identical types; |
| * Otherwise, return an integer which corresponds to how compatible |
| * PARM is to ARG. The higher the return value, the worse the match. |
| * Generally the "bad" conversions are all uniformly assigned a 100. */ |
| |
| int |
| rank_one_type (struct type *parm, struct type *arg) |
| { |
| /* Identical type pointers. */ |
| /* However, this still doesn't catch all cases of same type for arg |
| and param. The reason is that builtin types are different from |
| the same ones constructed from the object. */ |
| if (parm == arg) |
| return 0; |
| |
| /* Resolve typedefs */ |
| if (TYPE_CODE (parm) == TYPE_CODE_TYPEDEF) |
| parm = check_typedef (parm); |
| if (TYPE_CODE (arg) == TYPE_CODE_TYPEDEF) |
| arg = check_typedef (arg); |
| |
| /* |
| Well, damnit, if the names are exactly the same, I'll say they |
| are exactly the same. This happens when we generate method |
| stubs. The types won't point to the same address, but they |
| really are the same. |
| */ |
| |
| if (TYPE_NAME (parm) && TYPE_NAME (arg) |
| && !strcmp (TYPE_NAME (parm), TYPE_NAME (arg))) |
| return 0; |
| |
| /* Check if identical after resolving typedefs. */ |
| if (parm == arg) |
| return 0; |
| |
| /* See through references, since we can almost make non-references |
| references. */ |
| if (TYPE_CODE (arg) == TYPE_CODE_REF) |
| return (rank_one_type (parm, TYPE_TARGET_TYPE (arg)) |
| + REFERENCE_CONVERSION_BADNESS); |
| if (TYPE_CODE (parm) == TYPE_CODE_REF) |
| return (rank_one_type (TYPE_TARGET_TYPE (parm), arg) |
| + REFERENCE_CONVERSION_BADNESS); |
| if (overload_debug) |
| /* Debugging only. */ |
| fprintf_filtered (gdb_stderr, |
| "------ Arg is %s [%d], parm is %s [%d]\n", |
| TYPE_NAME (arg), TYPE_CODE (arg), |
| TYPE_NAME (parm), TYPE_CODE (parm)); |
| |
| /* x -> y means arg of type x being supplied for parameter of type y */ |
| |
| switch (TYPE_CODE (parm)) |
| { |
| case TYPE_CODE_PTR: |
| switch (TYPE_CODE (arg)) |
| { |
| case TYPE_CODE_PTR: |
| if (TYPE_CODE (TYPE_TARGET_TYPE (parm)) == TYPE_CODE_VOID) |
| return VOID_PTR_CONVERSION_BADNESS; |
| else |
| return rank_one_type (TYPE_TARGET_TYPE (parm), |
| TYPE_TARGET_TYPE (arg)); |
| case TYPE_CODE_ARRAY: |
| return rank_one_type (TYPE_TARGET_TYPE (parm), |
| TYPE_TARGET_TYPE (arg)); |
| case TYPE_CODE_FUNC: |
| return rank_one_type (TYPE_TARGET_TYPE (parm), arg); |
| case TYPE_CODE_INT: |
| case TYPE_CODE_ENUM: |
| case TYPE_CODE_FLAGS: |
| case TYPE_CODE_CHAR: |
| case TYPE_CODE_RANGE: |
| case TYPE_CODE_BOOL: |
| return POINTER_CONVERSION_BADNESS; |
| default: |
| return INCOMPATIBLE_TYPE_BADNESS; |
| } |
| case TYPE_CODE_ARRAY: |
| switch (TYPE_CODE (arg)) |
| { |
| case TYPE_CODE_PTR: |
| case TYPE_CODE_ARRAY: |
| return rank_one_type (TYPE_TARGET_TYPE (parm), |
| TYPE_TARGET_TYPE (arg)); |
| default: |
| return INCOMPATIBLE_TYPE_BADNESS; |
| } |
| case TYPE_CODE_FUNC: |
| switch (TYPE_CODE (arg)) |
| { |
| case TYPE_CODE_PTR: /* funcptr -> func */ |
| return rank_one_type (parm, TYPE_TARGET_TYPE (arg)); |
| default: |
| return INCOMPATIBLE_TYPE_BADNESS; |
| } |
| case TYPE_CODE_INT: |
| switch (TYPE_CODE (arg)) |
| { |
| case TYPE_CODE_INT: |
| if (TYPE_LENGTH (arg) == TYPE_LENGTH (parm)) |
| { |
| /* Deal with signed, unsigned, and plain chars and |
| signed and unsigned ints. */ |
| if (TYPE_NOSIGN (parm)) |
| { |
| /* This case only for character types */ |
| if (TYPE_NOSIGN (arg)) |
| return 0; /* plain char -> plain char */ |
| else /* signed/unsigned char -> plain char */ |
| return INTEGER_CONVERSION_BADNESS; |
| } |
| else if (TYPE_UNSIGNED (parm)) |
| { |
| if (TYPE_UNSIGNED (arg)) |
| { |
| /* unsigned int -> unsigned int, or |
| unsigned long -> unsigned long */ |
| if (integer_types_same_name_p (TYPE_NAME (parm), |
| TYPE_NAME (arg))) |
| return 0; |
| else if (integer_types_same_name_p (TYPE_NAME (arg), |
| "int") |
| && integer_types_same_name_p (TYPE_NAME (parm), |
| "long")) |
| return INTEGER_PROMOTION_BADNESS; /* unsigned int -> unsigned long */ |
| else |
| return INTEGER_CONVERSION_BADNESS; /* unsigned long -> unsigned int */ |
| } |
| else |
| { |
| if (integer_types_same_name_p (TYPE_NAME (arg), |
| "long") |
| && integer_types_same_name_p (TYPE_NAME (parm), |
| "int")) |
| return INTEGER_CONVERSION_BADNESS; /* signed long -> unsigned int */ |
| else |
| return INTEGER_CONVERSION_BADNESS; /* signed int/long -> unsigned int/long */ |
| } |
| } |
| else if (!TYPE_NOSIGN (arg) && !TYPE_UNSIGNED (arg)) |
| { |
| if (integer_types_same_name_p (TYPE_NAME (parm), |
| TYPE_NAME (arg))) |
| return 0; |
| else if (integer_types_same_name_p (TYPE_NAME (arg), |
| "int") |
| && integer_types_same_name_p (TYPE_NAME (parm), |
| "long")) |
| return INTEGER_PROMOTION_BADNESS; |
| else |
| return INTEGER_CONVERSION_BADNESS; |
| } |
| else |
| return INTEGER_CONVERSION_BADNESS; |
| } |
| else if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) |
| return INTEGER_PROMOTION_BADNESS; |
| else |
| return INTEGER_CONVERSION_BADNESS; |
| case TYPE_CODE_ENUM: |
| case TYPE_CODE_FLAGS: |
| case TYPE_CODE_CHAR: |
| case TYPE_CODE_RANGE: |
| case TYPE_CODE_BOOL: |
| return INTEGER_PROMOTION_BADNESS; |
| case TYPE_CODE_FLT: |
| return INT_FLOAT_CONVERSION_BADNESS; |
| case TYPE_CODE_PTR: |
| return NS_POINTER_CONVERSION_BADNESS; |
| default: |
| return INCOMPATIBLE_TYPE_BADNESS; |
| } |
| break; |
| case TYPE_CODE_ENUM: |
| switch (TYPE_CODE (arg)) |
| { |
| case TYPE_CODE_INT: |
| case TYPE_CODE_CHAR: |
| case TYPE_CODE_RANGE: |
| case TYPE_CODE_BOOL: |
| case TYPE_CODE_ENUM: |
| return INTEGER_CONVERSION_BADNESS; |
| case TYPE_CODE_FLT: |
| return INT_FLOAT_CONVERSION_BADNESS; |
| default: |
| return INCOMPATIBLE_TYPE_BADNESS; |
| } |
| break; |
| case TYPE_CODE_CHAR: |
| switch (TYPE_CODE (arg)) |
| { |
| case TYPE_CODE_RANGE: |
| case TYPE_CODE_BOOL: |
| case TYPE_CODE_ENUM: |
| return INTEGER_CONVERSION_BADNESS; |
| case TYPE_CODE_FLT: |
| return INT_FLOAT_CONVERSION_BADNESS; |
| case TYPE_CODE_INT: |
| if (TYPE_LENGTH (arg) > TYPE_LENGTH (parm)) |
| return INTEGER_CONVERSION_BADNESS; |
| else if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) |
| return INTEGER_PROMOTION_BADNESS; |
| /* >>> !! else fall through !! <<< */ |
| case TYPE_CODE_CHAR: |
| /* Deal with signed, unsigned, and plain chars for C++ and |
| with int cases falling through from previous case. */ |
| if (TYPE_NOSIGN (parm)) |
| { |
| if (TYPE_NOSIGN (arg)) |
| return 0; |
| else |
| return INTEGER_CONVERSION_BADNESS; |
| } |
| else if (TYPE_UNSIGNED (parm)) |
| { |
| if (TYPE_UNSIGNED (arg)) |
| return 0; |
| else |
| return INTEGER_PROMOTION_BADNESS; |
| } |
| else if (!TYPE_NOSIGN (arg) && !TYPE_UNSIGNED (arg)) |
| return 0; |
| else |
| return INTEGER_CONVERSION_BADNESS; |
| default: |
| return INCOMPATIBLE_TYPE_BADNESS; |
| } |
| break; |
| case TYPE_CODE_RANGE: |
| switch (TYPE_CODE (arg)) |
| { |
| case TYPE_CODE_INT: |
| case TYPE_CODE_CHAR: |
| case TYPE_CODE_RANGE: |
| case TYPE_CODE_BOOL: |
| case TYPE_CODE_ENUM: |
| return INTEGER_CONVERSION_BADNESS; |
| case TYPE_CODE_FLT: |
| return INT_FLOAT_CONVERSION_BADNESS; |
| default: |
| return INCOMPATIBLE_TYPE_BADNESS; |
| } |
| break; |
| case TYPE_CODE_BOOL: |
| switch (TYPE_CODE (arg)) |
| { |
| case TYPE_CODE_INT: |
| case TYPE_CODE_CHAR: |
| case TYPE_CODE_RANGE: |
| case TYPE_CODE_ENUM: |
| case TYPE_CODE_FLT: |
| case TYPE_CODE_PTR: |
| return BOOLEAN_CONVERSION_BADNESS; |
| case TYPE_CODE_BOOL: |
| return 0; |
| default: |
| return INCOMPATIBLE_TYPE_BADNESS; |
| } |
| break; |
| case TYPE_CODE_FLT: |
| switch (TYPE_CODE (arg)) |
| { |
| case TYPE_CODE_FLT: |
| if (TYPE_LENGTH (arg) < TYPE_LENGTH (parm)) |
| return FLOAT_PROMOTION_BADNESS; |
| else if (TYPE_LENGTH (arg) == TYPE_LENGTH (parm)) |
| return 0; |
| else |
| return FLOAT_CONVERSION_BADNESS; |
| case TYPE_CODE_INT: |
| case TYPE_CODE_BOOL: |
| case TYPE_CODE_ENUM: |
| case TYPE_CODE_RANGE: |
| case TYPE_CODE_CHAR: |
| return INT_FLOAT_CONVERSION_BADNESS; |
| default: |
| return INCOMPATIBLE_TYPE_BADNESS; |
| } |
| break; |
| case TYPE_CODE_COMPLEX: |
| switch (TYPE_CODE (arg)) |
| { /* Strictly not needed for C++, but... */ |
| case TYPE_CODE_FLT: |
| return FLOAT_PROMOTION_BADNESS; |
| case TYPE_CODE_COMPLEX: |
| return 0; |
| default: |
| return INCOMPATIBLE_TYPE_BADNESS; |
| } |
| break; |
| case TYPE_CODE_STRUCT: |
| /* currently same as TYPE_CODE_CLASS */ |
| switch (TYPE_CODE (arg)) |
| { |
| case TYPE_CODE_STRUCT: |
| /* Check for derivation */ |
| if (is_ancestor (parm, arg)) |
| return BASE_CONVERSION_BADNESS; |
| /* else fall through */ |
| default: |
| return INCOMPATIBLE_TYPE_BADNESS; |
| } |
| break; |
| case TYPE_CODE_UNION: |
| switch (TYPE_CODE (arg)) |
| { |
| case TYPE_CODE_UNION: |
| default: |
| return INCOMPATIBLE_TYPE_BADNESS; |
| } |
| break; |
| case TYPE_CODE_MEMBERPTR: |
| switch (TYPE_CODE (arg)) |
| { |
| default: |
| return INCOMPATIBLE_TYPE_BADNESS; |
| } |
| break; |
| case TYPE_CODE_METHOD: |
| switch (TYPE_CODE (arg)) |
| { |
| |
| default: |
| return INCOMPATIBLE_TYPE_BADNESS; |
| } |
| break; |
| case TYPE_CODE_REF: |
| switch (TYPE_CODE (arg)) |
| { |
| |
| default: |
| return INCOMPATIBLE_TYPE_BADNESS; |
| } |
| |
| break; |
| case TYPE_CODE_SET: |
| switch (TYPE_CODE (arg)) |
| { |
| /* Not in C++ */ |
| case TYPE_CODE_SET: |
| return rank_one_type (TYPE_FIELD_TYPE (parm, 0), |
| TYPE_FIELD_TYPE (arg, 0)); |
| default: |
| return INCOMPATIBLE_TYPE_BADNESS; |
| } |
| break; |
| case TYPE_CODE_VOID: |
| default: |
| return INCOMPATIBLE_TYPE_BADNESS; |
| } /* switch (TYPE_CODE (arg)) */ |
| } |
| |
| |
| /* End of functions for overload resolution */ |
| |
| static void |
| print_bit_vector (B_TYPE *bits, int nbits) |
| { |
| int bitno; |
| |
| for (bitno = 0; bitno < nbits; bitno++) |
| { |
| if ((bitno % 8) == 0) |
| { |
| puts_filtered (" "); |
| } |
| if (B_TST (bits, bitno)) |
| printf_filtered (("1")); |
| else |
| printf_filtered (("0")); |
| } |
| } |
| |
| /* Note the first arg should be the "this" pointer, we may not want to |
| include it since we may get into a infinitely recursive |
| situation. */ |
| |
| static void |
| print_arg_types (struct field *args, int nargs, int spaces) |
| { |
| if (args != NULL) |
| { |
| int i; |
| |
| for (i = 0; i < nargs; i++) |
| recursive_dump_type (args[i].type, spaces + 2); |
| } |
| } |
| |
| static void |
| dump_fn_fieldlists (struct type *type, int spaces) |
| { |
| int method_idx; |
| int overload_idx; |
| struct fn_field *f; |
| |
| printfi_filtered (spaces, "fn_fieldlists "); |
| gdb_print_host_address (TYPE_FN_FIELDLISTS (type), gdb_stdout); |
| printf_filtered ("\n"); |
| for (method_idx = 0; method_idx < TYPE_NFN_FIELDS (type); method_idx++) |
| { |
| f = TYPE_FN_FIELDLIST1 (type, method_idx); |
| printfi_filtered (spaces + 2, "[%d] name '%s' (", |
| method_idx, |
| TYPE_FN_FIELDLIST_NAME (type, method_idx)); |
| gdb_print_host_address (TYPE_FN_FIELDLIST_NAME (type, method_idx), |
| gdb_stdout); |
| printf_filtered (_(") length %d\n"), |
| TYPE_FN_FIELDLIST_LENGTH (type, method_idx)); |
| for (overload_idx = 0; |
| overload_idx < TYPE_FN_FIELDLIST_LENGTH (type, method_idx); |
| overload_idx++) |
| { |
| printfi_filtered (spaces + 4, "[%d] physname '%s' (", |
| overload_idx, |
| TYPE_FN_FIELD_PHYSNAME (f, overload_idx)); |
| gdb_print_host_address (TYPE_FN_FIELD_PHYSNAME (f, overload_idx), |
| gdb_stdout); |
| printf_filtered (")\n"); |
| printfi_filtered (spaces + 8, "type "); |
| gdb_print_host_address (TYPE_FN_FIELD_TYPE (f, overload_idx), |
| gdb_stdout); |
| printf_filtered ("\n"); |
| |
| recursive_dump_type (TYPE_FN_FIELD_TYPE (f, overload_idx), |
| spaces + 8 + 2); |
| |
| printfi_filtered (spaces + 8, "args "); |
| gdb_print_host_address (TYPE_FN_FIELD_ARGS (f, overload_idx), |
| gdb_stdout); |
| printf_filtered ("\n"); |
| |
| print_arg_types (TYPE_FN_FIELD_ARGS (f, overload_idx), |
| TYPE_NFIELDS (TYPE_FN_FIELD_TYPE (f, |
| overload_idx)), |
| spaces); |
| printfi_filtered (spaces + 8, "fcontext "); |
| gdb_print_host_address (TYPE_FN_FIELD_FCONTEXT (f, overload_idx), |
| gdb_stdout); |
| printf_filtered ("\n"); |
| |
| printfi_filtered (spaces + 8, "is_const %d\n", |
| TYPE_FN_FIELD_CONST (f, overload_idx)); |
| printfi_filtered (spaces + 8, "is_volatile %d\n", |
| TYPE_FN_FIELD_VOLATILE (f, overload_idx)); |
| printfi_filtered (spaces + 8, "is_private %d\n", |
| TYPE_FN_FIELD_PRIVATE (f, overload_idx)); |
| printfi_filtered (spaces + 8, "is_protected %d\n", |
| TYPE_FN_FIELD_PROTECTED (f, overload_idx)); |
| printfi_filtered (spaces + 8, "is_stub %d\n", |
| TYPE_FN_FIELD_STUB (f, overload_idx)); |
| printfi_filtered (spaces + 8, "voffset %u\n", |
| TYPE_FN_FIELD_VOFFSET (f, overload_idx)); |
| } |
| } |
| } |
| |
| static void |
| print_cplus_stuff (struct type *type, int spaces) |
| { |
| printfi_filtered (spaces, "n_baseclasses %d\n", |
| TYPE_N_BASECLASSES (type)); |
| printfi_filtered (spaces, "nfn_fields %d\n", |
| TYPE_NFN_FIELDS (type)); |
| printfi_filtered (spaces, "nfn_fields_total %d\n", |
| TYPE_NFN_FIELDS_TOTAL (type)); |
| if (TYPE_N_BASECLASSES (type) > 0) |
| { |
| printfi_filtered (spaces, "virtual_field_bits (%d bits at *", |
| TYPE_N_BASECLASSES (type)); |
| gdb_print_host_address (TYPE_FIELD_VIRTUAL_BITS (type), |
| gdb_stdout); |
| printf_filtered (")"); |
| |
| print_bit_vector (TYPE_FIELD_VIRTUAL_BITS (type), |
| TYPE_N_BASECLASSES (type)); |
| puts_filtered ("\n"); |
| } |
| if (TYPE_NFIELDS (type) > 0) |
| { |
| if (TYPE_FIELD_PRIVATE_BITS (type) != NULL) |
| { |
| printfi_filtered (spaces, |
| "private_field_bits (%d bits at *", |
| TYPE_NFIELDS (type)); |
| gdb_print_host_address (TYPE_FIELD_PRIVATE_BITS (type), |
| gdb_stdout); |
| printf_filtered (")"); |
| print_bit_vector (TYPE_FIELD_PRIVATE_BITS (type), |
| TYPE_NFIELDS (type)); |
| puts_filtered ("\n"); |
| } |
| if (TYPE_FIELD_PROTECTED_BITS (type) != NULL) |
| { |
| printfi_filtered (spaces, |
| "protected_field_bits (%d bits at *", |
| TYPE_NFIELDS (type)); |
| gdb_print_host_address (TYPE_FIELD_PROTECTED_BITS (type), |
| gdb_stdout); |
| printf_filtered (")"); |
| print_bit_vector (TYPE_FIELD_PROTECTED_BITS (type), |
| TYPE_NFIELDS (type)); |
| puts_filtered ("\n"); |
| } |
| } |
| if (TYPE_NFN_FIELDS (type) > 0) |
| { |
| dump_fn_fieldlists (type, spaces); |
| } |
| } |
| |
| static void |
| print_bound_type (int bt) |
| { |
| switch (bt) |
| { |
| case BOUND_CANNOT_BE_DETERMINED: |
| printf_filtered ("(BOUND_CANNOT_BE_DETERMINED)"); |
| break; |
| case BOUND_BY_REF_ON_STACK: |
| printf_filtered ("(BOUND_BY_REF_ON_STACK)"); |
| break; |
| case BOUND_BY_VALUE_ON_STACK: |
| printf_filtered ("(BOUND_BY_VALUE_ON_STACK)"); |
| break; |
| case BOUND_BY_REF_IN_REG: |
| printf_filtered ("(BOUND_BY_REF_IN_REG)"); |
| break; |
| case BOUND_BY_VALUE_IN_REG: |
| printf_filtered ("(BOUND_BY_VALUE_IN_REG)"); |
| break; |
| case BOUND_SIMPLE: |
| printf_filtered ("(BOUND_SIMPLE)"); |
| break; |
| default: |
| printf_filtered (_("(unknown bound type)")); |
| break; |
| } |
| } |
| |
| static struct obstack dont_print_type_obstack; |
| |
| void |
| recursive_dump_type (struct type *type, int spaces) |
| { |
| int idx; |
| |
| if (spaces == 0) |
| obstack_begin (&dont_print_type_obstack, 0); |
| |
| if (TYPE_NFIELDS (type) > 0 |
| || (TYPE_CPLUS_SPECIFIC (type) && TYPE_NFN_FIELDS (type) > 0)) |
| { |
| struct type **first_dont_print |
| = (struct type **) obstack_base (&dont_print_type_obstack); |
| |
| int i = (struct type **) |
| obstack_next_free (&dont_print_type_obstack) - first_dont_print; |
| |
| while (--i >= 0) |
| { |
| if (type == first_dont_print[i]) |
| { |
| printfi_filtered (spaces, "type node "); |
| gdb_print_host_address (type, gdb_stdout); |
| printf_filtered (_(" <same as already seen type>\n")); |
| return; |
| } |
| } |
| |
| obstack_ptr_grow (&dont_print_type_obstack, type); |
| } |
| |
| printfi_filtered (spaces, "type node "); |
| gdb_print_host_address (type, gdb_stdout); |
| printf_filtered ("\n"); |
| printfi_filtered (spaces, "name '%s' (", |
| TYPE_NAME (type) ? TYPE_NAME (type) : "<NULL>"); |
| gdb_print_host_address (TYPE_NAME (type), gdb_stdout); |
| printf_filtered (")\n"); |
| printfi_filtered (spaces, "tagname '%s' (", |
| TYPE_TAG_NAME (type) ? TYPE_TAG_NAME (type) : "<NULL>"); |
| gdb_print_host_address (TYPE_TAG_NAME (type), gdb_stdout); |
| printf_filtered (")\n"); |
| printfi_filtered (spaces, "code 0x%x ", TYPE_CODE (type)); |
| switch (TYPE_CODE (type)) |
| { |
| case TYPE_CODE_UNDEF: |
| printf_filtered ("(TYPE_CODE_UNDEF)"); |
| break; |
| case TYPE_CODE_PTR: |
| printf_filtered ("(TYPE_CODE_PTR)"); |
| break; |
| case TYPE_CODE_ARRAY: |
| printf_filtered ("(TYPE_CODE_ARRAY)"); |
| break; |
| case TYPE_CODE_STRUCT: |
| printf_filtered ("(TYPE_CODE_STRUCT)"); |
| break; |
| case TYPE_CODE_UNION: |
| printf_filtered ("(TYPE_CODE_UNION)"); |
| break; |
| case TYPE_CODE_ENUM: |
| printf_filtered ("(TYPE_CODE_ENUM)"); |
| break; |
| case TYPE_CODE_FLAGS: |
| printf_filtered ("(TYPE_CODE_FLAGS)"); |
| break; |
| case TYPE_CODE_FUNC: |
| printf_filtered ("(TYPE_CODE_FUNC)"); |
| break; |
| case TYPE_CODE_INT: |
| printf_filtered ("(TYPE_CODE_INT)"); |
| break; |
| case TYPE_CODE_FLT: |
| printf_filtered ("(TYPE_CODE_FLT)"); |
| break; |
| case TYPE_CODE_VOID: |
| printf_filtered ("(TYPE_CODE_VOID)"); |
| break; |
| case TYPE_CODE_SET: |
| printf_filtered ("(TYPE_CODE_SET)"); |
| break; |
| case TYPE_CODE_RANGE: |
| printf_filtered ("(TYPE_CODE_RANGE)"); |
| break; |
| case TYPE_CODE_STRING: |
| printf_filtered ("(TYPE_CODE_STRING)"); |
| break; |
| case TYPE_CODE_BITSTRING: |
| printf_filtered ("(TYPE_CODE_BITSTRING)"); |
| break; |
| case TYPE_CODE_ERROR: |
| printf_filtered ("(TYPE_CODE_ERROR)"); |
| break; |
| case TYPE_CODE_MEMBERPTR: |
| printf_filtered ("(TYPE_CODE_MEMBERPTR)"); |
| break; |
| case TYPE_CODE_METHODPTR: |
| printf_filtered ("(TYPE_CODE_METHODPTR)"); |
| break; |
| case TYPE_CODE_METHOD: |
| printf_filtered ("(TYPE_CODE_METHOD)"); |
| break; |
| case TYPE_CODE_REF: |
| printf_filtered ("(TYPE_CODE_REF)"); |
| break; |
| case TYPE_CODE_CHAR: |
| printf_filtered ("(TYPE_CODE_CHAR)"); |
| break; |
| case TYPE_CODE_BOOL: |
| printf_filtered ("(TYPE_CODE_BOOL)"); |
| break; |
| case TYPE_CODE_COMPLEX: |
| printf_filtered ("(TYPE_CODE_COMPLEX)"); |
| break; |
| case TYPE_CODE_TYPEDEF: |
| printf_filtered ("(TYPE_CODE_TYPEDEF)"); |
| break; |
| case TYPE_CODE_TEMPLATE: |
| printf_filtered ("(TYPE_CODE_TEMPLATE)"); |
| break; |
| case TYPE_CODE_TEMPLATE_ARG: |
| printf_filtered ("(TYPE_CODE_TEMPLATE_ARG)"); |
| break; |
| case TYPE_CODE_NAMESPACE: |
| printf_filtered ("(TYPE_CODE_NAMESPACE)"); |
| break; |
| default: |
| printf_filtered ("(UNKNOWN TYPE CODE)"); |
| break; |
| } |
| puts_filtered ("\n"); |
| printfi_filtered (spaces, "length %d\n", TYPE_LENGTH (type)); |
| printfi_filtered (spaces, "upper_bound_type 0x%x ", |
| TYPE_ARRAY_UPPER_BOUND_TYPE (type)); |
| print_bound_type (TYPE_ARRAY_UPPER_BOUND_TYPE (type)); |
| puts_filtered ("\n"); |
| printfi_filtered (spaces, "lower_bound_type 0x%x ", |
| TYPE_ARRAY_LOWER_BOUND_TYPE (type)); |
| print_bound_type (TYPE_ARRAY_LOWER_BOUND_TYPE (type)); |
| puts_filtered ("\n"); |
| printfi_filtered (spaces, "objfile "); |
| gdb_print_host_address (TYPE_OBJFILE (type), gdb_stdout); |
| printf_filtered ("\n"); |
| printfi_filtered (spaces, "target_type "); |
| gdb_print_host_address (TYPE_TARGET_TYPE (type), gdb_stdout); |
| printf_filtered ("\n"); |
| if (TYPE_TARGET_TYPE (type) != NULL) |
| { |
| recursive_dump_type (TYPE_TARGET_TYPE (type), spaces + 2); |
| } |
| printfi_filtered (spaces, "pointer_type "); |
| gdb_print_host_address (TYPE_POINTER_TYPE (type), gdb_stdout); |
| printf_filtered ("\n"); |
| printfi_filtered (spaces, "reference_type "); |
| gdb_print_host_address (TYPE_REFERENCE_TYPE (type), gdb_stdout); |
| printf_filtered ("\n"); |
| printfi_filtered (spaces, "type_chain "); |
| gdb_print_host_address (TYPE_CHAIN (type), gdb_stdout); |
| printf_filtered ("\n"); |
| printfi_filtered (spaces, "instance_flags 0x%x", |
| TYPE_INSTANCE_FLAGS (type)); |
| if (TYPE_CONST (type)) |
| { |
| puts_filtered (" TYPE_FLAG_CONST"); |
| } |
| if (TYPE_VOLATILE (type)) |
| { |
| puts_filtered (" TYPE_FLAG_VOLATILE"); |
| } |
| if (TYPE_CODE_SPACE (type)) |
| { |
| puts_filtered (" TYPE_FLAG_CODE_SPACE"); |
| } |
| if (TYPE_DATA_SPACE (type)) |
| { |
| puts_filtered (" TYPE_FLAG_DATA_SPACE"); |
| } |
| if (TYPE_ADDRESS_CLASS_1 (type)) |
| { |
| puts_filtered (" TYPE_FLAG_ADDRESS_CLASS_1"); |
| } |
| if (TYPE_ADDRESS_CLASS_2 (type)) |
| { |
| puts_filtered (" TYPE_FLAG_ADDRESS_CLASS_2"); |
| } |
| puts_filtered ("\n"); |
| printfi_filtered (spaces, "flags 0x%x", TYPE_FLAGS (type)); |
| if (TYPE_UNSIGNED (type)) |
| { |
| puts_filtered (" TYPE_FLAG_UNSIGNED"); |
| } |
| if (TYPE_NOSIGN (type)) |
| { |
| puts_filtered (" TYPE_FLAG_NOSIGN"); |
| } |
| if (TYPE_STUB (type)) |
| { |
| puts_filtered (" TYPE_FLAG_STUB"); |
| } |
| if (TYPE_TARGET_STUB (type)) |
| { |
| puts_filtered (" TYPE_FLAG_TARGET_STUB"); |
| } |
| if (TYPE_STATIC (type)) |
| { |
| puts_filtered (" TYPE_FLAG_STATIC"); |
| } |
| if (TYPE_PROTOTYPED (type)) |
| { |
| puts_filtered (" TYPE_FLAG_PROTOTYPED"); |
| } |
| if (TYPE_INCOMPLETE (type)) |
| { |
| puts_filtered (" TYPE_FLAG_INCOMPLETE"); |
| } |
| if (TYPE_VARARGS (type)) |
| { |
| puts_filtered (" TYPE_FLAG_VARARGS"); |
| } |
| /* This is used for things like AltiVec registers on ppc. Gcc emits |
| an attribute for the array type, which tells whether or not we |
| have a vector, instead of a regular array. */ |
| if (TYPE_VECTOR (type)) |
| { |
| puts_filtered (" TYPE_FLAG_VECTOR"); |
| } |
| puts_filtered ("\n"); |
| printfi_filtered (spaces, "nfields %d ", TYPE_NFIELDS (type)); |
| gdb_print_host_address (TYPE_FIELDS (type), gdb_stdout); |
| puts_filtered ("\n"); |
| for (idx = 0; idx < TYPE_NFIELDS (type); idx++) |
| { |
| printfi_filtered (spaces + 2, |
| "[%d] bitpos %d bitsize %d type ", |
| idx, TYPE_FIELD_BITPOS (type, idx), |
| TYPE_FIELD_BITSIZE (type, idx)); |
| gdb_print_host_address (TYPE_FIELD_TYPE (type, idx), gdb_stdout); |
| printf_filtered (" name '%s' (", |
| TYPE_FIELD_NAME (type, idx) != NULL |
| ? TYPE_FIELD_NAME (type, idx) |
| : "<NULL>"); |
| gdb_print_host_address (TYPE_FIELD_NAME (type, idx), gdb_stdout); |
| printf_filtered (")\n"); |
| if (TYPE_FIELD_TYPE (type, idx) != NULL) |
| { |
| recursive_dump_type (TYPE_FIELD_TYPE (type, idx), spaces + 4); |
| } |
| } |
| printfi_filtered (spaces, "vptr_basetype "); |
| gdb_print_host_address (TYPE_VPTR_BASETYPE (type), gdb_stdout); |
| puts_filtered ("\n"); |
| if (TYPE_VPTR_BASETYPE (type) != NULL) |
| { |
| recursive_dump_type (TYPE_VPTR_BASETYPE (type), spaces + 2); |
| } |
| printfi_filtered (spaces, "vptr_fieldno %d\n", |
| TYPE_VPTR_FIELDNO (type)); |
| switch (TYPE_CODE (type)) |
| { |
| case TYPE_CODE_STRUCT: |
| printfi_filtered (spaces, "cplus_stuff "); |
| gdb_print_host_address (TYPE_CPLUS_SPECIFIC (type), |
| gdb_stdout); |
| puts_filtered ("\n"); |
| print_cplus_stuff (type, spaces); |
| break; |
| |
| case TYPE_CODE_FLT: |
| printfi_filtered (spaces, "floatformat "); |
| if (TYPE_FLOATFORMAT (type) == NULL) |
| puts_filtered ("(null)"); |
| else |
| { |
| puts_filtered ("{ "); |
| if (TYPE_FLOATFORMAT (type)[0] == NULL |
| || TYPE_FLOATFORMAT (type)[0]->name == NULL) |
| puts_filtered ("(null)"); |
| else |
| puts_filtered (TYPE_FLOATFORMAT (type)[0]->name); |
| |
| puts_filtered (", "); |
| if (TYPE_FLOATFORMAT (type)[1] == NULL |
| || TYPE_FLOATFORMAT (type)[1]->name == NULL) |
| puts_filtered ("(null)"); |
| else |
| puts_filtered (TYPE_FLOATFORMAT (type)[1]->name); |
| |
| puts_filtered (" }"); |
| } |
| puts_filtered ("\n"); |
| break; |
| |
| default: |
| /* We have to pick one of the union types to be able print and |
| test the value. Pick cplus_struct_type, even though we know |
| it isn't any particular one. */ |
| printfi_filtered (spaces, "type_specific "); |
| gdb_print_host_address (TYPE_CPLUS_SPECIFIC (type), gdb_stdout); |
| if (TYPE_CPLUS_SPECIFIC (type) != NULL) |
| { |
| printf_filtered (_(" (unknown data form)")); |
| } |
| printf_filtered ("\n"); |
| break; |
| |
| } |
| if (spaces == 0) |
| obstack_free (&dont_print_type_obstack, NULL); |
| } |
| |
| /* Trivial helpers for the libiberty hash table, for mapping one |
| type to another. */ |
| |
| struct type_pair |
| { |
| struct type *old, *new; |
| }; |
| |
| static hashval_t |
| type_pair_hash (const void *item) |
| { |
| const struct type_pair *pair = item; |
| return htab_hash_pointer (pair->old); |
| } |
| |
| static int |
| type_pair_eq (const void *item_lhs, const void *item_rhs) |
| { |
| const struct type_pair *lhs = item_lhs, *rhs = item_rhs; |
| return lhs->old == rhs->old; |
| } |
| |
| /* Allocate the hash table used by copy_type_recursive to walk |
| types without duplicates. We use OBJFILE's obstack, because |
| OBJFILE is about to be deleted. */ |
| |
| htab_t |
| create_copied_types_hash (struct objfile *objfile) |
| { |
| return htab_create_alloc_ex (1, type_pair_hash, type_pair_eq, |
| NULL, &objfile->objfile_obstack, |
| hashtab_obstack_allocate, |
| dummy_obstack_deallocate); |
| } |
| |
| /* Recursively copy (deep copy) TYPE, if it is associated with |
| OBJFILE. Return a new type allocated using malloc, a saved type if |
| we have already visited TYPE (using COPIED_TYPES), or TYPE if it is |
| not associated with OBJFILE. */ |
| |
| struct type * |
| copy_type_recursive (struct objfile *objfile, |
| struct type *type, |
| htab_t copied_types) |
| { |
| struct type_pair *stored, pair; |
| void **slot; |
| struct type *new_type; |
| |
| if (TYPE_OBJFILE (type) == NULL) |
| return type; |
| |
| /* This type shouldn't be pointing to any types in other objfiles; |
| if it did, the type might disappear unexpectedly. */ |
| gdb_assert (TYPE_OBJFILE (type) == objfile); |
| |
| pair.old = type; |
| slot = htab_find_slot (copied_types, &pair, INSERT); |
| if (*slot != NULL) |
| return ((struct type_pair *) *slot)->new; |
| |
| new_type = alloc_type (NULL); |
| |
| /* We must add the new type to the hash table immediately, in case |
| we encounter this type again during a recursive call below. */ |
| stored = xmalloc (sizeof (struct type_pair)); |
| stored->old = type; |
| stored->new = new_type; |
| *slot = stored; |
| |
| /* Copy the common fields of types. */ |
| TYPE_CODE (new_type) = TYPE_CODE (type); |
| TYPE_ARRAY_UPPER_BOUND_TYPE (new_type) = |
| TYPE_ARRAY_UPPER_BOUND_TYPE (type); |
| TYPE_ARRAY_LOWER_BOUND_TYPE (new_type) = |
| TYPE_ARRAY_LOWER_BOUND_TYPE (type); |
| if (TYPE_NAME (type)) |
| TYPE_NAME (new_type) = xstrdup (TYPE_NAME (type)); |
| if (TYPE_TAG_NAME (type)) |
| TYPE_TAG_NAME (new_type) = xstrdup (TYPE_TAG_NAME (type)); |
| TYPE_FLAGS (new_type) = TYPE_FLAGS (type); |
| TYPE_VPTR_FIELDNO (new_type) = TYPE_VPTR_FIELDNO (type); |
| |
| TYPE_INSTANCE_FLAGS (new_type) = TYPE_INSTANCE_FLAGS (type); |
| TYPE_LENGTH (new_type) = TYPE_LENGTH (type); |
| |
| /* Copy the fields. */ |
| TYPE_NFIELDS (new_type) = TYPE_NFIELDS (type); |
| if (TYPE_NFIELDS (type)) |
| { |
| int i, nfields; |
| |
| nfields = TYPE_NFIELDS (type); |
| TYPE_FIELDS (new_type) = xmalloc (sizeof (struct field) * nfields); |
| for (i = 0; i < nfields; i++) |
| { |
| TYPE_FIELD_ARTIFICIAL (new_type, i) = |
| TYPE_FIELD_ARTIFICIAL (type, i); |
| TYPE_FIELD_BITSIZE (new_type, i) = TYPE_FIELD_BITSIZE (type, i); |
| if (TYPE_FIELD_TYPE (type, i)) |
| TYPE_FIELD_TYPE (new_type, i) |
| = copy_type_recursive (objfile, TYPE_FIELD_TYPE (type, i), |
| copied_types); |
| if (TYPE_FIELD_NAME (type, i)) |
| TYPE_FIELD_NAME (new_type, i) = |
| xstrdup (TYPE_FIELD_NAME (type, i)); |
| if (TYPE_FIELD_STATIC_HAS_ADDR (type, i)) |
| SET_FIELD_PHYSADDR (TYPE_FIELD (new_type, i), |
| TYPE_FIELD_STATIC_PHYSADDR (type, i)); |
| else if (TYPE_FIELD_STATIC (type, i)) |
| SET_FIELD_PHYSNAME (TYPE_FIELD (new_type, i), |
| xstrdup (TYPE_FIELD_STATIC_PHYSNAME (type, |
| i))); |
| else |
| { |
| TYPE_FIELD_BITPOS (new_type, i) = |
| TYPE_FIELD_BITPOS (type, i); |
| TYPE_FIELD_STATIC_KIND (new_type, i) = 0; |
| } |
| } |
| } |
| |
| /* Copy pointers to other types. */ |
| if (TYPE_TARGET_TYPE (type)) |
| TYPE_TARGET_TYPE (new_type) = |
| copy_type_recursive (objfile, |
| TYPE_TARGET_TYPE (type), |
| copied_types); |
| if (TYPE_VPTR_BASETYPE (type)) |
| TYPE_VPTR_BASETYPE (new_type) = |
| copy_type_recursive (objfile, |
| TYPE_VPTR_BASETYPE (type), |
| copied_types); |
| /* Maybe copy the type_specific bits. |
| |
| NOTE drow/2005-12-09: We do not copy the C++-specific bits like |
| base classes and methods. There's no fundamental reason why we |
| can't, but at the moment it is not needed. */ |
| |
| if (TYPE_CODE (type) == TYPE_CODE_FLT) |
| TYPE_FLOATFORMAT (new_type) = TYPE_FLOATFORMAT (type); |
| else if (TYPE_CODE (type) == TYPE_CODE_STRUCT |
| || TYPE_CODE (type) == TYPE_CODE_UNION |
| || TYPE_CODE (type) == TYPE_CODE_TEMPLATE |
| || TYPE_CODE (type) == TYPE_CODE_NAMESPACE) |
| INIT_CPLUS_SPECIFIC (new_type); |
| |
| return new_type; |
| } |
| |
| static struct type * |
| build_flt (int bit, char *name, const struct floatformat **floatformats) |
| { |
| struct type *t; |
| |
| if (bit == -1) |
| { |
| gdb_assert (floatformats != NULL); |
| gdb_assert (floatformats[0] != NULL && floatformats[1] != NULL); |
| bit = floatformats[0]->totalsize; |
| } |
| gdb_assert (bit >= 0); |
| |
| t = init_type (TYPE_CODE_FLT, bit / TARGET_CHAR_BIT, 0, name, NULL); |
| TYPE_FLOATFORMAT (t) = floatformats; |
| return t; |
| } |
| |
| static struct gdbarch_data *gdbtypes_data; |
| |
| const struct builtin_type * |
| builtin_type (struct gdbarch *gdbarch) |
| { |
| return gdbarch_data (gdbarch, gdbtypes_data); |
| } |
| |
| |
| static struct type * |
| build_complex (int bit, char *name, struct type *target_type) |
| { |
| struct type *t; |
| if (bit <= 0 || target_type == builtin_type_error) |
| { |
| gdb_assert (builtin_type_error != NULL); |
| return builtin_type_error; |
| } |
| t = init_type (TYPE_CODE_COMPLEX, 2 * bit / TARGET_CHAR_BIT, |
| 0, name, (struct objfile *) NULL); |
| TYPE_TARGET_TYPE (t) = target_type; |
| return t; |
| } |
| |
| static void * |
| gdbtypes_post_init (struct gdbarch *gdbarch) |
| { |
| struct builtin_type *builtin_type |
| = GDBARCH_OBSTACK_ZALLOC (gdbarch, struct builtin_type); |
| |
| builtin_type->builtin_void = |
| init_type (TYPE_CODE_VOID, 1, |
| 0, |
| "void", (struct objfile *) NULL); |
| builtin_type->builtin_char = |
| init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, |
| (TYPE_FLAG_NOSIGN |
| | (gdbarch_char_signed (gdbarch) ? 0 : TYPE_FLAG_UNSIGNED)), |
| "char", (struct objfile *) NULL); |
| builtin_type->builtin_true_char = |
| init_type (TYPE_CODE_CHAR, TARGET_CHAR_BIT / TARGET_CHAR_BIT, |
| 0, |
| "true character", (struct objfile *) NULL); |
| builtin_type->builtin_true_unsigned_char = |
| init_type (TYPE_CODE_CHAR, TARGET_CHAR_BIT / TARGET_CHAR_BIT, |
| TYPE_FLAG_UNSIGNED, |
| "true character", (struct objfile *) NULL); |
| builtin_type->builtin_signed_char = |
| init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, |
| 0, |
| "signed char", (struct objfile *) NULL); |
| builtin_type->builtin_unsigned_char = |
| init_type (TYPE_CODE_INT, TARGET_CHAR_BIT / TARGET_CHAR_BIT, |
| TYPE_FLAG_UNSIGNED, |
| "unsigned char", (struct objfile *) NULL); |
| builtin_type->builtin_short = |
| init_type (TYPE_CODE_INT, |
| gdbarch_short_bit (gdbarch) / TARGET_CHAR_BIT, |
| 0, "short", (struct objfile *) NULL); |
| builtin_type->builtin_unsigned_short = |
| init_type (TYPE_CODE_INT, |
| gdbarch_short_bit (gdbarch) / TARGET_CHAR_BIT, |
| TYPE_FLAG_UNSIGNED, "unsigned short", |
| (struct objfile *) NULL); |
| builtin_type->builtin_int = |
| init_type (TYPE_CODE_INT, |
| gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT, |
| 0, "int", (struct objfile *) NULL); |
| builtin_type->builtin_unsigned_int = |
| init_type (TYPE_CODE_INT, |
| gdbarch_int_bit (gdbarch) / TARGET_CHAR_BIT, |
| TYPE_FLAG_UNSIGNED, "unsigned int", |
| (struct objfile *) NULL); |
| builtin_type->builtin_long = |
| init_type (TYPE_CODE_INT, |
| gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT, |
| 0, "long", (struct objfile *) NULL); |
| builtin_type->builtin_unsigned_long = |
| init_type (TYPE_CODE_INT, |
| gdbarch_long_bit (gdbarch) / TARGET_CHAR_BIT, |
| TYPE_FLAG_UNSIGNED, "unsigned long", |
| (struct objfile *) NULL); |
| builtin_type->builtin_long_long = |
| init_type (TYPE_CODE_INT, |
| gdbarch_long_long_bit (gdbarch) / TARGET_CHAR_BIT, |
| 0, "long long", (struct objfile *) NULL); |
| builtin_type->builtin_unsigned_long_long = |
| init_type (TYPE_CODE_INT, |
| gdbarch_long_long_bit (gdbarch) / TARGET_CHAR_BIT, |
| TYPE_FLAG_UNSIGNED, "unsigned long long", |
| (struct objfile *) NULL); |
| builtin_type->builtin_float |
| = build_flt (gdbarch_float_bit (gdbarch), "float", |
| gdbarch_float_format (gdbarch)); |
| builtin_type->builtin_double |
| = build_flt (gdbarch_double_bit (gdbarch), "double", |
| gdbarch_double_format (gdbarch)); |
| builtin_type->builtin_long_double |
| = build_flt (gdbarch_long_double_bit (gdbarch), "long double", |
| gdbarch_long_double_format (gdbarch)); |
| builtin_type->builtin_complex |
| = build_complex (gdbarch_float_bit (gdbarch), "complex", |
| builtin_type->builtin_float); |
| builtin_type->builtin_double_complex |
| = build_complex (gdbarch_double_bit (gdbarch), "double complex", |
| builtin_type->builtin_double); |
| builtin_type->builtin_string = |
| init_type (TYPE_CODE_STRING, TARGET_CHAR_BIT / TARGET_CHAR_BIT, |
| 0, |
| "string", (struct objfile *) NULL); |
| builtin_type->builtin_bool = |
| init_type (TYPE_CODE_BOOL, TARGET_CHAR_BIT / TARGET_CHAR_BIT, |
| 0, |
| "bool", (struct objfile *) NULL); |
| |
| /* The following three are about decimal floating point types, which |
| are 32-bits, 64-bits and 128-bits respectively. */ |
| builtin_type->builtin_decfloat |
| = init_type (TYPE_CODE_DECFLOAT, 32 / 8, |
| 0, |
| "_Decimal32", (struct objfile *) NULL); |
| builtin_type->builtin_decdouble |
| = init_type (TYPE_CODE_DECFLOAT, 64 / 8, |
| 0, |
| "_Decimal64", (struct objfile *) NULL); |
| builtin_type->builtin_declong |
| = init_type (TYPE_CODE_DECFLOAT, 128 / 8, |
| 0, |
| "_Decimal128", (struct objfile *) NULL); |
| |
| /* Pointer/Address types. */ |
| |
| /* NOTE: on some targets, addresses and pointers are not necessarily |
| the same --- for example, on the D10V, pointers are 16 bits long, |
| but addresses are 32 bits long. See doc/gdbint.texinfo, |
| ``Pointers Are Not Always Addresses''. |
| |
| The upshot is: |
| - gdb's `struct type' always describes the target's |
| representation. |
| - gdb's `struct value' objects should always hold values in |
| target form. |
| - gdb's CORE_ADDR values are addresses in the unified virtual |
| address space that the assembler and linker work with. Thus, |
| since target_read_memory takes a CORE_ADDR as an argument, it |
| can access any memory on the target, even if the processor has |
| separate code and data address spaces. |
| |
| So, for example: |
| - If v is a value holding a D10V code pointer, its contents are |
| in target form: a big-endian address left-shifted two bits. |
| - If p is a D10V pointer type, TYPE_LENGTH (p) == 2, just as |
| sizeof (void *) == 2 on the target. |
| |
| In this context, builtin_type->CORE_ADDR is a bit odd: it's a |
| target type for a value the target will never see. It's only |
| used to hold the values of (typeless) linker symbols, which are |
| indeed in the unified virtual address space. */ |
| |
| builtin_type->builtin_data_ptr = |
| make_pointer_type (builtin_type->builtin_void, NULL); |
| builtin_type->builtin_func_ptr = |
| lookup_pointer_type (lookup_function_type (builtin_type->builtin_void)); |
| builtin_type->builtin_core_addr = |
| init_type (TYPE_CODE_INT, |
| gdbarch_addr_bit (gdbarch) / 8, |
| TYPE_FLAG_UNSIGNED, |
| "__CORE_ADDR", (struct objfile *) NULL); |
| |
| |
| /* The following set of types is used for symbols with no |
| debug information. */ |
| builtin_type->nodebug_text_symbol = |
| init_type (TYPE_CODE_FUNC, 1, 0, |
| "<text variable, no debug info>", NULL); |
| TYPE_TARGET_TYPE (builtin_type->nodebug_text_symbol) = |
| builtin_type->builtin_int; |
| builtin_type->nodebug_data_symbol = |
| init_type (TYPE_CODE_INT, |
| gdbarch_int_bit (gdbarch) / HOST_CHAR_BIT, 0, |
| "<data variable, no debug info>", NULL); |
| builtin_type->nodebug_unknown_symbol = |
| init_type (TYPE_CODE_INT, 1, 0, |
| "<variable (not text or data), no debug info>", NULL); |
| builtin_type->nodebug_tls_symbol = |
| init_type (TYPE_CODE_INT, |
| gdbarch_int_bit (gdbarch) / HOST_CHAR_BIT, 0, |
| "<thread local variable, no debug info>", NULL); |
| |
| return builtin_type; |
| } |
| |
| extern void _initialize_gdbtypes (void); |
| void |
| _initialize_gdbtypes (void) |
| { |
| gdbtypes_data = gdbarch_data_register_post_init (gdbtypes_post_init); |
| |
| /* FIXME: The following types are architecture-neutral. However, |
| they contain pointer_type and reference_type fields potentially |
| caching pointer or reference types that *are* architecture |
| dependent. */ |
| |
| builtin_type_int0 = |
| init_type (TYPE_CODE_INT, 0 / 8, |
| 0, |
| "int0_t", (struct objfile *) NULL); |
| builtin_type_int8 = |
| init_type (TYPE_CODE_INT, 8 / 8, |
| TYPE_FLAG_NOTTEXT, |
| "int8_t", (struct objfile *) NULL); |
| builtin_type_uint8 = |
| init_type (TYPE_CODE_INT, 8 / 8, |
| TYPE_FLAG_UNSIGNED | TYPE_FLAG_NOTTEXT, |
| "uint8_t", (struct objfile *) NULL); |
| builtin_type_int16 = |
| init_type (TYPE_CODE_INT, 16 / 8, |
| 0, |
| "int16_t", (struct objfile *) NULL); |
| builtin_type_uint16 = |
| init_type (TYPE_CODE_INT, 16 / 8, |
| TYPE_FLAG_UNSIGNED, |
| "uint16_t", (struct objfile *) NULL); |
| builtin_type_int32 = |
| init_type (TYPE_CODE_INT, 32 / 8, |
| 0, |
| "int32_t", (struct objfile *) NULL); |
| builtin_type_uint32 = |
| init_type (TYPE_CODE_INT, 32 / 8, |
| TYPE_FLAG_UNSIGNED, |
| "uint32_t", (struct objfile *) NULL); |
| builtin_type_int64 = |
| init_type (TYPE_CODE_INT, 64 / 8, |
| 0, |
| "int64_t", (struct objfile *) NULL); |
| builtin_type_uint64 = |
| init_type (TYPE_CODE_INT, 64 / 8, |
| TYPE_FLAG_UNSIGNED, |
| "uint64_t", (struct objfile *) NULL); |
| builtin_type_int128 = |
| init_type (TYPE_CODE_INT, 128 / 8, |
| 0, |
| "int128_t", (struct objfile *) NULL); |
| builtin_type_uint128 = |
| init_type (TYPE_CODE_INT, 128 / 8, |
| TYPE_FLAG_UNSIGNED, |
| "uint128_t", (struct objfile *) NULL); |
| |
| builtin_type_ieee_single = |
| build_flt (-1, "builtin_type_ieee_single", floatformats_ieee_single); |
| builtin_type_ieee_double = |
| build_flt (-1, "builtin_type_ieee_double", floatformats_ieee_double); |
| builtin_type_i387_ext = |
| build_flt (-1, "builtin_type_i387_ext", floatformats_i387_ext); |
| builtin_type_m68881_ext = |
| build_flt (-1, "builtin_type_m68881_ext", floatformats_m68881_ext); |
| builtin_type_arm_ext = |
| build_flt (-1, "builtin_type_arm_ext", floatformats_arm_ext); |
| builtin_type_ia64_spill = |
| build_flt (-1, "builtin_type_ia64_spill", floatformats_ia64_spill); |
| builtin_type_ia64_quad = |
| build_flt (-1, "builtin_type_ia64_quad", floatformats_ia64_quad); |
| |
| add_setshow_zinteger_cmd ("overload", no_class, &overload_debug, _("\ |
| Set debugging of C++ overloading."), _("\ |
| Show debugging of C++ overloading."), _("\ |
| When enabled, ranking of the functions is displayed."), |
| NULL, |
| show_overload_debug, |
| &setdebuglist, &showdebuglist); |
| |
| /* Add user knob for controlling resolution of opaque types. */ |
| add_setshow_boolean_cmd ("opaque-type-resolution", class_support, |
| &opaque_type_resolution, _("\ |
| Set resolution of opaque struct/class/union types (if set before loading symbols)."), _("\ |
| Show resolution of opaque struct/class/union types (if set before loading symbols)."), NULL, |
| NULL, |
| show_opaque_type_resolution, |
| &setlist, &showlist); |
| } |