01d1590bab
decl for attach_flag, it now lives in inferior.h. * hppa-pinsn.c: Reformat opcode tables. Add function prototypes. Make most functions static. * hppah-nat.c: General cleanups, remove BSD specific code (since that all lives in hppab-nat.c). * hppah-tdep.c (frame_chain_valid), tm-hppa.h (FRAME_CHAIN): Change sense of test against inside_entry_file(). This fix is from U. of Utah. * tm-hppa.h (PUSH_DUMMY_FRAME, POP_FRAME): Use char * for 2nd arg to read/write_register_bytes().
1270 lines
34 KiB
C
1270 lines
34 KiB
C
/* Support routines for manipulating internal types for GDB.
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Copyright (C) 1992 Free Software Foundation, Inc.
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Contributed by Cygnus Support, using pieces from other GDB modules.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
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#include "defs.h"
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#include <string.h>
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#include "bfd.h"
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#include "symtab.h"
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#include "symfile.h"
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#include "objfiles.h"
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#include "gdbtypes.h"
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#include "expression.h"
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#include "language.h"
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#include "target.h"
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#include "value.h"
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#include "demangle.h"
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/* Alloc a new type structure and fill it with some defaults. If
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OBJFILE is non-NULL, then allocate the space for the type structure
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in that objfile's type_obstack. */
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struct type *
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alloc_type (objfile)
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struct objfile *objfile;
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{
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register struct type *type;
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/* Alloc the structure and start off with all fields zeroed. */
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if (objfile == NULL)
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{
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type = (struct type *) xmalloc (sizeof (struct type));
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}
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else
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{
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type = (struct type *) obstack_alloc (&objfile -> type_obstack,
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sizeof (struct type));
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}
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memset ((char *) type, 0, sizeof (struct type));
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/* Initialize the fields that might not be zero. */
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TYPE_CODE (type) = TYPE_CODE_UNDEF;
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TYPE_OBJFILE (type) = objfile;
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TYPE_VPTR_FIELDNO (type) = -1;
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return (type);
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}
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/* Lookup a pointer to a type TYPE. TYPEPTR, if nonzero, points
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to a pointer to memory where the pointer type should be stored.
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If *TYPEPTR is zero, update it to point to the pointer type we return.
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We allocate new memory if needed. */
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struct type *
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make_pointer_type (type, typeptr)
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struct type *type;
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struct type **typeptr;
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{
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register struct type *ntype; /* New type */
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struct objfile *objfile;
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ntype = TYPE_POINTER_TYPE (type);
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if (ntype)
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if (typeptr == 0)
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return ntype; /* Don't care about alloc, and have new type. */
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else if (*typeptr == 0)
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{
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*typeptr = ntype; /* Tracking alloc, and we have new type. */
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return ntype;
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}
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if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */
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{
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ntype = alloc_type (TYPE_OBJFILE (type));
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if (typeptr)
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*typeptr = ntype;
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}
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else /* We have storage, but need to reset it. */
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{
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ntype = *typeptr;
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objfile = TYPE_OBJFILE (ntype);
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memset ((char *) ntype, 0, sizeof (struct type));
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TYPE_OBJFILE (ntype) = objfile;
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}
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TYPE_TARGET_TYPE (ntype) = type;
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TYPE_POINTER_TYPE (type) = ntype;
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/* FIXME! Assume the machine has only one representation for pointers! */
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TYPE_LENGTH (ntype) = TARGET_PTR_BIT / TARGET_CHAR_BIT;
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TYPE_CODE (ntype) = TYPE_CODE_PTR;
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/* pointers are unsigned */
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TYPE_FLAGS (ntype) |= TYPE_FLAG_UNSIGNED;
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if (!TYPE_POINTER_TYPE (type)) /* Remember it, if don't have one. */
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TYPE_POINTER_TYPE (type) = ntype;
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return ntype;
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}
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/* Given a type TYPE, return a type of pointers to that type.
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May need to construct such a type if this is the first use. */
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struct type *
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lookup_pointer_type (type)
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struct type *type;
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{
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return make_pointer_type (type, (struct type **)0);
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}
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/* Lookup a C++ `reference' to a type TYPE. TYPEPTR, if nonzero, points
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to a pointer to memory where the reference type should be stored.
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If *TYPEPTR is zero, update it to point to the reference type we return.
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We allocate new memory if needed. */
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struct type *
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make_reference_type (type, typeptr)
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struct type *type;
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struct type **typeptr;
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{
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register struct type *ntype; /* New type */
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struct objfile *objfile;
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ntype = TYPE_REFERENCE_TYPE (type);
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if (ntype)
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if (typeptr == 0)
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return ntype; /* Don't care about alloc, and have new type. */
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else if (*typeptr == 0)
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{
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*typeptr = ntype; /* Tracking alloc, and we have new type. */
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return ntype;
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}
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if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */
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{
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ntype = alloc_type (TYPE_OBJFILE (type));
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if (typeptr)
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*typeptr = ntype;
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}
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else /* We have storage, but need to reset it. */
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{
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ntype = *typeptr;
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objfile = TYPE_OBJFILE (ntype);
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memset ((char *) ntype, 0, sizeof (struct type));
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TYPE_OBJFILE (ntype) = objfile;
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}
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TYPE_TARGET_TYPE (ntype) = type;
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TYPE_REFERENCE_TYPE (type) = ntype;
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/* FIXME! Assume the machine has only one representation for references,
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and that it matches the (only) representation for pointers! */
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TYPE_LENGTH (ntype) = TARGET_PTR_BIT / TARGET_CHAR_BIT;
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TYPE_CODE (ntype) = TYPE_CODE_REF;
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if (!TYPE_REFERENCE_TYPE (type)) /* Remember it, if don't have one. */
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TYPE_REFERENCE_TYPE (type) = ntype;
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return ntype;
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}
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/* Same as above, but caller doesn't care about memory allocation details. */
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struct type *
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lookup_reference_type (type)
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struct type *type;
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{
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return make_reference_type (type, (struct type **)0);
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}
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/* Lookup a function type that returns type TYPE. TYPEPTR, if nonzero, points
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to a pointer to memory where the function type should be stored.
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If *TYPEPTR is zero, update it to point to the function type we return.
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We allocate new memory if needed. */
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struct type *
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make_function_type (type, typeptr)
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struct type *type;
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struct type **typeptr;
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{
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register struct type *ntype; /* New type */
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struct objfile *objfile;
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ntype = TYPE_FUNCTION_TYPE (type);
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if (ntype)
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if (typeptr == 0)
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return ntype; /* Don't care about alloc, and have new type. */
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else if (*typeptr == 0)
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{
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*typeptr = ntype; /* Tracking alloc, and we have new type. */
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return ntype;
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}
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if (typeptr == 0 || *typeptr == 0) /* We'll need to allocate one. */
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{
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ntype = alloc_type (TYPE_OBJFILE (type));
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if (typeptr)
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*typeptr = ntype;
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}
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else /* We have storage, but need to reset it. */
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{
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ntype = *typeptr;
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objfile = TYPE_OBJFILE (ntype);
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memset ((char *) ntype, 0, sizeof (struct type));
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TYPE_OBJFILE (ntype) = objfile;
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}
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TYPE_TARGET_TYPE (ntype) = type;
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TYPE_FUNCTION_TYPE (type) = ntype;
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TYPE_LENGTH (ntype) = 1;
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TYPE_CODE (ntype) = TYPE_CODE_FUNC;
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if (!TYPE_FUNCTION_TYPE (type)) /* Remember it, if don't have one. */
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TYPE_FUNCTION_TYPE (type) = ntype;
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return ntype;
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}
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/* Given a type TYPE, return a type of functions that return that type.
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May need to construct such a type if this is the first use. */
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struct type *
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lookup_function_type (type)
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struct type *type;
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{
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return make_function_type (type, (struct type **)0);
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}
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/* Implement direct support for MEMBER_TYPE in GNU C++.
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May need to construct such a type if this is the first use.
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The TYPE is the type of the member. The DOMAIN is the type
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of the aggregate that the member belongs to. */
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struct type *
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lookup_member_type (type, domain)
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struct type *type;
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struct type *domain;
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{
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register struct type *mtype;
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mtype = alloc_type (TYPE_OBJFILE (type));
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smash_to_member_type (mtype, domain, type);
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return (mtype);
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}
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/* Allocate a stub method whose return type is TYPE.
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This apparently happens for speed of symbol reading, since parsing
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out the arguments to the method is cpu-intensive, the way we are doing
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it. So, we will fill in arguments later.
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This always returns a fresh type. */
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struct type *
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allocate_stub_method (type)
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struct type *type;
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{
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struct type *mtype;
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mtype = alloc_type (TYPE_OBJFILE (type));
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TYPE_TARGET_TYPE (mtype) = type;
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/* _DOMAIN_TYPE (mtype) = unknown yet */
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/* _ARG_TYPES (mtype) = unknown yet */
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TYPE_FLAGS (mtype) = TYPE_FLAG_STUB;
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TYPE_CODE (mtype) = TYPE_CODE_METHOD;
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TYPE_LENGTH (mtype) = 1;
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return (mtype);
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}
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/* Create an array type. Elements will be of type TYPE, and there will
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be NUM of them.
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Eventually this should be extended to take two more arguments which
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specify the bounds of the array and the type of the index.
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It should also be changed to be a "lookup" function, with the
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appropriate data structures added to the type field.
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Then read array type should call here. */
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struct type *
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create_array_type (element_type, number)
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struct type *element_type;
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int number;
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{
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struct type *result_type;
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struct type *range_type;
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result_type = alloc_type (TYPE_OBJFILE (element_type));
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TYPE_CODE (result_type) = TYPE_CODE_ARRAY;
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TYPE_TARGET_TYPE (result_type) = element_type;
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TYPE_LENGTH (result_type) = number * TYPE_LENGTH (element_type);
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TYPE_NFIELDS (result_type) = 1;
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TYPE_FIELDS (result_type) = (struct field *)
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TYPE_ALLOC (result_type, sizeof (struct field));
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{
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/* Create range type. */
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range_type = alloc_type (TYPE_OBJFILE (result_type));
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TYPE_CODE (range_type) = TYPE_CODE_RANGE;
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TYPE_TARGET_TYPE (range_type) = builtin_type_int; /* FIXME */
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/* This should never be needed. */
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TYPE_LENGTH (range_type) = sizeof (int);
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TYPE_NFIELDS (range_type) = 2;
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TYPE_FIELDS (range_type) = (struct field *)
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TYPE_ALLOC (range_type, 2 * sizeof (struct field));
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TYPE_FIELD_BITPOS (range_type, 0) = 0; /* FIXME */
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TYPE_FIELD_BITPOS (range_type, 1) = number-1; /* FIXME */
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TYPE_FIELD_TYPE (range_type, 0) = builtin_type_int; /* FIXME */
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TYPE_FIELD_TYPE (range_type, 1) = builtin_type_int; /* FIXME */
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}
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TYPE_FIELD_TYPE (result_type, 0) = range_type;
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TYPE_VPTR_FIELDNO (result_type) = -1;
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return (result_type);
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}
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|
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/* Smash TYPE to be a type of members of DOMAIN with type TO_TYPE.
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A MEMBER is a wierd thing -- it amounts to a typed offset into
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a struct, e.g. "an int at offset 8". A MEMBER TYPE doesn't
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include the offset (that's the value of the MEMBER itself), but does
|
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include the structure type into which it points (for some reason).
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When "smashing" the type, we preserve the objfile that the
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old type pointed to, since we aren't changing where the type is actually
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allocated. */
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void
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smash_to_member_type (type, domain, to_type)
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struct type *type;
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struct type *domain;
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struct type *to_type;
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{
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struct objfile *objfile;
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objfile = TYPE_OBJFILE (type);
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memset ((char *) type, 0, sizeof (struct type));
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TYPE_OBJFILE (type) = objfile;
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TYPE_TARGET_TYPE (type) = to_type;
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TYPE_DOMAIN_TYPE (type) = domain;
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TYPE_LENGTH (type) = 1; /* In practice, this is never needed. */
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TYPE_CODE (type) = TYPE_CODE_MEMBER;
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}
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|
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/* Smash TYPE to be a type of method of DOMAIN with type TO_TYPE.
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METHOD just means `function that gets an extra "this" argument'.
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When "smashing" the type, we preserve the objfile that the
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old type pointed to, since we aren't changing where the type is actually
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allocated. */
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void
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smash_to_method_type (type, domain, to_type, args)
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struct type *type;
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struct type *domain;
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struct type *to_type;
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struct type **args;
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{
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struct objfile *objfile;
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objfile = TYPE_OBJFILE (type);
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memset ((char *) type, 0, sizeof (struct type));
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TYPE_OBJFILE (type) = objfile;
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TYPE_TARGET_TYPE (type) = to_type;
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TYPE_DOMAIN_TYPE (type) = domain;
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TYPE_ARG_TYPES (type) = args;
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TYPE_LENGTH (type) = 1; /* In practice, this is never needed. */
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TYPE_CODE (type) = TYPE_CODE_METHOD;
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}
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|
|
/* Return a typename for a struct/union/enum type
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|
without the tag qualifier. If the type has a NULL name,
|
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NULL is returned. */
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char *
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type_name_no_tag (type)
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register const struct type *type;
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{
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register char *name;
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if ((name = TYPE_NAME (type)) != NULL)
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{
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switch (TYPE_CODE (type))
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{
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|
case TYPE_CODE_STRUCT:
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if(!strncmp (name, "struct ", 7))
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{
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name += 7;
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}
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break;
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case TYPE_CODE_UNION:
|
|
if(!strncmp (name, "union ", 6))
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{
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name += 6;
|
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}
|
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break;
|
|
case TYPE_CODE_ENUM:
|
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if(!strncmp (name, "enum ", 5))
|
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{
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name += 5;
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}
|
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break;
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|
default: /* To avoid -Wall warnings */
|
|
break;
|
|
}
|
|
}
|
|
return (name);
|
|
}
|
|
|
|
/* Lookup a primitive type named NAME.
|
|
Return zero if NAME is not a primitive type.*/
|
|
|
|
struct type *
|
|
lookup_primitive_typename (name)
|
|
char *name;
|
|
{
|
|
struct type ** const *p;
|
|
|
|
for (p = current_language -> la_builtin_type_vector; *p != NULL; p++)
|
|
{
|
|
if (!strcmp ((**p) -> name, name))
|
|
{
|
|
return (**p);
|
|
}
|
|
}
|
|
return (NULL);
|
|
}
|
|
|
|
/* 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 (name, block, noerr)
|
|
char *name;
|
|
struct block *block;
|
|
int noerr;
|
|
{
|
|
register struct symbol *sym;
|
|
register struct type *tmp;
|
|
|
|
sym = lookup_symbol (name, block, VAR_NAMESPACE, 0, (struct symtab **) NULL);
|
|
if (sym == NULL || SYMBOL_CLASS (sym) != LOC_TYPEDEF)
|
|
{
|
|
tmp = lookup_primitive_typename (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 (name)
|
|
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 (name)
|
|
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 (name, block)
|
|
char *name;
|
|
struct block *block;
|
|
{
|
|
register struct symbol *sym;
|
|
|
|
sym = lookup_symbol (name, block, STRUCT_NAMESPACE, 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 (name, block)
|
|
char *name;
|
|
struct block *block;
|
|
{
|
|
register struct symbol *sym;
|
|
|
|
sym = lookup_symbol (name, block, STRUCT_NAMESPACE, 0,
|
|
(struct symtab **) NULL);
|
|
|
|
if (sym == NULL)
|
|
{
|
|
error ("No union type named %s.", name);
|
|
}
|
|
if (TYPE_CODE (SYMBOL_TYPE (sym)) != TYPE_CODE_UNION)
|
|
{
|
|
error ("This context has class, struct or enum %s, not a union.", name);
|
|
}
|
|
return (SYMBOL_TYPE (sym));
|
|
}
|
|
|
|
/* Lookup an enum type named "enum NAME",
|
|
visible in lexical block BLOCK. */
|
|
|
|
struct type *
|
|
lookup_enum (name, block)
|
|
char *name;
|
|
struct block *block;
|
|
{
|
|
register struct symbol *sym;
|
|
|
|
sym = lookup_symbol (name, block, STRUCT_NAMESPACE, 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 (name, type, block)
|
|
char *name;
|
|
struct type *type;
|
|
struct block *block;
|
|
{
|
|
struct symbol *sym;
|
|
char *nam = (char*) alloca(strlen(name) + strlen(type->name) + 4);
|
|
strcpy (nam, name);
|
|
strcat (nam, "<");
|
|
strcat (nam, type->name);
|
|
strcat (nam, " >"); /* FIXME, extra space still introduced in gcc? */
|
|
|
|
sym = lookup_symbol (nam, block, VAR_NAMESPACE, 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.
|
|
If NOERR is nonzero, return zero if NAME is not suitably defined. */
|
|
|
|
struct type *
|
|
lookup_struct_elt_type (type, name, noerr)
|
|
struct type *type;
|
|
char *name;
|
|
int noerr;
|
|
{
|
|
int i;
|
|
|
|
if (TYPE_CODE (type) == TYPE_CODE_PTR ||
|
|
TYPE_CODE (type) == TYPE_CODE_REF)
|
|
type = TYPE_TARGET_TYPE (type);
|
|
|
|
if (TYPE_CODE (type) != TYPE_CODE_STRUCT &&
|
|
TYPE_CODE (type) != TYPE_CODE_UNION)
|
|
{
|
|
target_terminal_ours ();
|
|
fflush (stdout);
|
|
fprintf (stderr, "Type ");
|
|
type_print (type, "", stderr, -1);
|
|
error (" is not a structure or union type.");
|
|
}
|
|
|
|
check_stub_type (type);
|
|
|
|
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 (t_field_name, name))
|
|
{
|
|
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, 0);
|
|
if (t != NULL)
|
|
{
|
|
return t;
|
|
}
|
|
}
|
|
|
|
if (noerr)
|
|
{
|
|
return NULL;
|
|
}
|
|
|
|
target_terminal_ours ();
|
|
fflush (stdout);
|
|
fprintf (stderr, "Type ");
|
|
type_print (type, "", stderr, -1);
|
|
fprintf (stderr, " has no component named ");
|
|
fputs_filtered (name, stderr);
|
|
error (".");
|
|
return (struct type *)-1; /* For lint */
|
|
}
|
|
|
|
/* This function is really horrible, but to avoid it, there would need
|
|
to be more filling in of forward references. */
|
|
|
|
void
|
|
fill_in_vptr_fieldno (type)
|
|
struct type *type;
|
|
{
|
|
if (TYPE_VPTR_FIELDNO (type) < 0)
|
|
{
|
|
int i;
|
|
for (i = 1; i < TYPE_N_BASECLASSES (type); i++)
|
|
{
|
|
fill_in_vptr_fieldno (TYPE_BASECLASS (type, i));
|
|
if (TYPE_VPTR_FIELDNO (TYPE_BASECLASS (type, i)) >= 0)
|
|
{
|
|
TYPE_VPTR_FIELDNO (type)
|
|
= TYPE_VPTR_FIELDNO (TYPE_BASECLASS (type, i));
|
|
TYPE_VPTR_BASETYPE (type)
|
|
= TYPE_VPTR_BASETYPE (TYPE_BASECLASS (type, i));
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/* 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. If not, set a flag so we
|
|
don't waste too much time in future. (FIXME, this doesn't seem
|
|
to be happening...)
|
|
|
|
This used to be coded as a macro, but I don't think it is called
|
|
often enough to merit such treatment.
|
|
*/
|
|
|
|
struct complaint stub_noname_complaint =
|
|
{"stub type has NULL name", 0, 0};
|
|
|
|
void
|
|
check_stub_type (type)
|
|
struct type *type;
|
|
{
|
|
if (TYPE_FLAGS(type) & TYPE_FLAG_STUB)
|
|
{
|
|
char* name = type_name_no_tag (type);
|
|
struct symbol *sym;
|
|
if (name == NULL)
|
|
{
|
|
complain (&stub_noname_complaint, 0);
|
|
return;
|
|
}
|
|
sym = lookup_symbol (name, 0, STRUCT_NAMESPACE, 0,
|
|
(struct symtab **) NULL);
|
|
if (sym)
|
|
{
|
|
memcpy ((char *)type, (char *)SYMBOL_TYPE(sym), sizeof (struct 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. */
|
|
|
|
void
|
|
check_stub_method (type, i, j)
|
|
struct type *type;
|
|
int i;
|
|
int j;
|
|
{
|
|
struct fn_field *f;
|
|
char *mangled_name = gdb_mangle_name (type, i, j);
|
|
char *demangled_name = cplus_demangle (mangled_name,
|
|
DMGL_PARAMS | DMGL_ANSI);
|
|
char *argtypetext, *p;
|
|
int depth = 0, argcount = 1;
|
|
struct type **argtypes;
|
|
struct type *mtype;
|
|
|
|
if (demangled_name == NULL)
|
|
{
|
|
error ("Internal: Cannot demangle mangled name `%s'.", mangled_name);
|
|
}
|
|
|
|
/* Now, read in the parameters that define this type. */
|
|
argtypetext = strchr (demangled_name, '(') + 1;
|
|
p = argtypetext;
|
|
while (*p)
|
|
{
|
|
if (*p == '(')
|
|
{
|
|
depth += 1;
|
|
}
|
|
else if (*p == ')')
|
|
{
|
|
depth -= 1;
|
|
}
|
|
else if (*p == ',' && depth == 0)
|
|
{
|
|
argcount += 1;
|
|
}
|
|
|
|
p += 1;
|
|
}
|
|
|
|
/* We need two more slots: one for the THIS pointer, and one for the
|
|
NULL [...] or void [end of arglist]. */
|
|
|
|
argtypes = (struct type **)
|
|
TYPE_ALLOC (type, (argcount + 2) * sizeof (struct type *));
|
|
p = argtypetext;
|
|
argtypes[0] = lookup_pointer_type (type);
|
|
argcount = 1;
|
|
|
|
if (*p != ')') /* () means no args, skip while */
|
|
{
|
|
depth = 0;
|
|
while (*p)
|
|
{
|
|
if (depth <= 0 && (*p == ',' || *p == ')'))
|
|
{
|
|
argtypes[argcount] =
|
|
parse_and_eval_type (argtypetext, p - argtypetext);
|
|
argcount += 1;
|
|
argtypetext = p + 1;
|
|
}
|
|
|
|
if (*p == '(')
|
|
{
|
|
depth += 1;
|
|
}
|
|
else if (*p == ')')
|
|
{
|
|
depth -= 1;
|
|
}
|
|
|
|
p += 1;
|
|
}
|
|
}
|
|
|
|
if (p[-2] != '.') /* Not '...' */
|
|
{
|
|
argtypes[argcount] = builtin_type_void; /* List terminator */
|
|
}
|
|
else
|
|
{
|
|
argtypes[argcount] = NULL; /* Ellist terminator */
|
|
}
|
|
|
|
free (demangled_name);
|
|
|
|
f = TYPE_FN_FIELDLIST1 (type, i);
|
|
TYPE_FN_FIELD_PHYSNAME (f, j) = mangled_name;
|
|
|
|
/* Now update the old "stub" type into a real type. */
|
|
mtype = TYPE_FN_FIELD_TYPE (f, j);
|
|
TYPE_DOMAIN_TYPE (mtype) = type;
|
|
TYPE_ARG_TYPES (mtype) = argtypes;
|
|
TYPE_FLAGS (mtype) &= ~TYPE_FLAG_STUB;
|
|
TYPE_FN_FIELD_STUB (f, j) = 0;
|
|
}
|
|
|
|
struct cplus_struct_type cplus_struct_default;
|
|
|
|
void
|
|
allocate_cplus_struct_type (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 type_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 (code, length, flags, name, objfile)
|
|
enum type_code code;
|
|
int length;
|
|
int flags;
|
|
char *name;
|
|
struct objfile *objfile;
|
|
{
|
|
register 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 -> type_obstack);
|
|
}
|
|
else
|
|
{
|
|
TYPE_NAME (type) = name;
|
|
}
|
|
|
|
/* C++ fancies. */
|
|
|
|
if (code == TYPE_CODE_STRUCT || code == TYPE_CODE_UNION)
|
|
{
|
|
INIT_CPLUS_SPECIFIC (type);
|
|
}
|
|
return (type);
|
|
}
|
|
|
|
/* Look up a fundamental type for the specified objfile.
|
|
May need to construct such a type if this is the first use.
|
|
|
|
Some object file formats (ELF, COFF, etc) do not define fundamental
|
|
types such as "int" or "double". Others (stabs for example), do
|
|
define fundamental types.
|
|
|
|
For the formats which don't provide fundamental types, gdb can create
|
|
such types, using defaults reasonable for the current language and
|
|
the current target machine.
|
|
|
|
NOTE: This routine is obsolescent. Each debugging format reader
|
|
should manage it's own fundamental types, either creating them from
|
|
suitable defaults or reading them from the debugging information,
|
|
whichever is appropriate. The DWARF reader has already been
|
|
fixed to do this. Once the other readers are fixed, this routine
|
|
will go away. Also note that fundamental types should be managed
|
|
on a compilation unit basis in a multi-language environment, not
|
|
on a linkage unit basis as is done here. */
|
|
|
|
|
|
struct type *
|
|
lookup_fundamental_type (objfile, typeid)
|
|
struct objfile *objfile;
|
|
int typeid;
|
|
{
|
|
register struct type **typep;
|
|
register int nbytes;
|
|
|
|
if (typeid < 0 || typeid >= FT_NUM_MEMBERS)
|
|
{
|
|
error ("internal error - invalid fundamental type id %d", typeid);
|
|
}
|
|
|
|
/* If this is the first time we need a fundamental type for this objfile
|
|
then we need to initialize the vector of type pointers. */
|
|
|
|
if (objfile -> fundamental_types == NULL)
|
|
{
|
|
nbytes = FT_NUM_MEMBERS * sizeof (struct type *);
|
|
objfile -> fundamental_types = (struct type **)
|
|
obstack_alloc (&objfile -> type_obstack, nbytes);
|
|
memset ((char *) objfile -> fundamental_types, 0, nbytes);
|
|
}
|
|
|
|
/* Look for this particular type in the fundamental type vector. If one is
|
|
not found, create and install one appropriate for the current language. */
|
|
|
|
typep = objfile -> fundamental_types + typeid;
|
|
if (*typep == NULL)
|
|
{
|
|
*typep = create_fundamental_type (objfile, typeid);
|
|
}
|
|
|
|
return (*typep);
|
|
}
|
|
|
|
#if MAINTENANCE_CMDS
|
|
|
|
static void
|
|
print_bit_vector (bits, nbits)
|
|
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");
|
|
}
|
|
}
|
|
}
|
|
|
|
/* The args list is a strange beast. It is either terminated by a NULL
|
|
pointer for varargs functions, or by a pointer to a TYPE_CODE_VOID
|
|
type for normal fixed argcount functions. (FIXME someday)
|
|
Also 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 (args, spaces)
|
|
struct type **args;
|
|
int spaces;
|
|
{
|
|
if (args != NULL)
|
|
{
|
|
while (*args != NULL)
|
|
{
|
|
recursive_dump_type (*args, spaces + 2);
|
|
if ((*args++) -> code == TYPE_CODE_VOID)
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
dump_fn_fieldlists (type, spaces)
|
|
struct type *type;
|
|
int spaces;
|
|
{
|
|
int method_idx;
|
|
int overload_idx;
|
|
struct fn_field *f;
|
|
|
|
printfi_filtered (spaces, "fn_fieldlists 0x%x\n",
|
|
TYPE_FN_FIELDLISTS (type));
|
|
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' (0x%x) length %d\n",
|
|
method_idx,
|
|
TYPE_FN_FIELDLIST_NAME (type, method_idx),
|
|
TYPE_FN_FIELDLIST_NAME (type, method_idx),
|
|
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' (0x%x)\n",
|
|
overload_idx,
|
|
TYPE_FN_FIELD_PHYSNAME (f, overload_idx),
|
|
TYPE_FN_FIELD_PHYSNAME (f, overload_idx));
|
|
printfi_filtered (spaces + 8, "type 0x%x\n",
|
|
TYPE_FN_FIELD_TYPE (f, overload_idx));
|
|
recursive_dump_type (TYPE_FN_FIELD_TYPE (f, overload_idx),
|
|
spaces + 8 + 2);
|
|
printfi_filtered (spaces + 8, "args 0x%x\n",
|
|
TYPE_FN_FIELD_ARGS (f, overload_idx));
|
|
print_arg_types (TYPE_FN_FIELD_ARGS (f, overload_idx), spaces);
|
|
printfi_filtered (spaces + 8, "fcontext 0x%x\n",
|
|
TYPE_FN_FIELD_FCONTEXT (f, overload_idx));
|
|
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 (type, spaces)
|
|
struct type *type;
|
|
int spaces;
|
|
{
|
|
int bitno;
|
|
|
|
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 *0x%x)",
|
|
TYPE_N_BASECLASSES (type),
|
|
TYPE_FIELD_VIRTUAL_BITS (type));
|
|
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 *0x%x)",
|
|
TYPE_NFIELDS (type),
|
|
TYPE_FIELD_PRIVATE_BITS (type));
|
|
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 *0x%x)",
|
|
TYPE_NFIELDS (type),
|
|
TYPE_FIELD_PROTECTED_BITS (type));
|
|
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);
|
|
}
|
|
}
|
|
|
|
void
|
|
recursive_dump_type (type, spaces)
|
|
struct type *type;
|
|
int spaces;
|
|
{
|
|
int idx;
|
|
|
|
printfi_filtered (spaces, "type node 0x%x\n", type);
|
|
printfi_filtered (spaces, "name '%s' (0x%x)\n", TYPE_NAME (type),
|
|
TYPE_NAME (type) ? TYPE_NAME (type) : "<NULL>");
|
|
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_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_PASCAL_ARRAY:
|
|
printf_filtered ("(TYPE_CODE_PASCAL_ARRAY)");
|
|
break;
|
|
case TYPE_CODE_ERROR:
|
|
printf_filtered ("(TYPE_CODE_ERROR)");
|
|
break;
|
|
case TYPE_CODE_MEMBER:
|
|
printf_filtered ("(TYPE_CODE_MEMBER)");
|
|
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;
|
|
default:
|
|
printf_filtered ("(UNKNOWN TYPE CODE)");
|
|
break;
|
|
}
|
|
puts_filtered ("\n");
|
|
printfi_filtered (spaces, "length %d\n", TYPE_LENGTH (type));
|
|
printfi_filtered (spaces, "objfile 0x%x\n", TYPE_OBJFILE (type));
|
|
printfi_filtered (spaces, "target_type 0x%x\n", TYPE_TARGET_TYPE (type));
|
|
if (TYPE_TARGET_TYPE (type) != NULL)
|
|
{
|
|
recursive_dump_type (TYPE_TARGET_TYPE (type), spaces + 2);
|
|
}
|
|
printfi_filtered (spaces, "pointer_type 0x%x\n",
|
|
TYPE_POINTER_TYPE (type));
|
|
printfi_filtered (spaces, "reference_type 0x%x\n",
|
|
TYPE_REFERENCE_TYPE (type));
|
|
printfi_filtered (spaces, "function_type 0x%x\n",
|
|
TYPE_FUNCTION_TYPE (type));
|
|
printfi_filtered (spaces, "flags 0x%x", TYPE_FLAGS (type));
|
|
if (TYPE_FLAGS (type) & TYPE_FLAG_UNSIGNED)
|
|
{
|
|
puts_filtered (" TYPE_FLAG_UNSIGNED");
|
|
}
|
|
if (TYPE_FLAGS (type) & TYPE_FLAG_SIGNED)
|
|
{
|
|
puts_filtered (" TYPE_FLAG_SIGNED");
|
|
}
|
|
if (TYPE_FLAGS (type) & TYPE_FLAG_STUB)
|
|
{
|
|
puts_filtered (" TYPE_FLAG_STUB");
|
|
}
|
|
puts_filtered ("\n");
|
|
printfi_filtered (spaces, "nfields %d 0x%x\n", TYPE_NFIELDS (type),
|
|
TYPE_FIELDS (type));
|
|
for (idx = 0; idx < TYPE_NFIELDS (type); idx++)
|
|
{
|
|
printfi_filtered (spaces + 2,
|
|
"[%d] bitpos %d bitsize %d type 0x%x name '%s' (0x%x)\n",
|
|
idx, TYPE_FIELD_BITPOS (type, idx),
|
|
TYPE_FIELD_BITSIZE (type, idx),
|
|
TYPE_FIELD_TYPE (type, idx),
|
|
TYPE_FIELD_NAME (type, idx),
|
|
TYPE_FIELD_NAME (type, idx) != NULL
|
|
? TYPE_FIELD_NAME (type, idx)
|
|
: "<NULL>");
|
|
if (TYPE_FIELD_TYPE (type, idx) != NULL)
|
|
{
|
|
recursive_dump_type (TYPE_FIELD_TYPE (type, idx), spaces + 4);
|
|
}
|
|
}
|
|
printfi_filtered (spaces, "vptr_basetype 0x%x\n",
|
|
TYPE_VPTR_BASETYPE (type));
|
|
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_METHOD:
|
|
case TYPE_CODE_FUNC:
|
|
printfi_filtered (spaces, "arg_types 0x%x\n", TYPE_ARG_TYPES (type));
|
|
print_arg_types (TYPE_ARG_TYPES (type), spaces);
|
|
break;
|
|
|
|
case TYPE_CODE_STRUCT:
|
|
printfi_filtered (spaces, "cplus_stuff 0x%x\n",
|
|
TYPE_CPLUS_SPECIFIC (type));
|
|
print_cplus_stuff (type, spaces);
|
|
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 0x%x",
|
|
TYPE_CPLUS_SPECIFIC (type));
|
|
if (TYPE_CPLUS_SPECIFIC (type) != NULL)
|
|
{
|
|
printf_filtered (" (unknown data form)");
|
|
}
|
|
printf_filtered ("\n");
|
|
break;
|
|
|
|
}
|
|
}
|
|
|
|
#endif /* MAINTENANCE_CMDS */
|