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-rw-r--r--binutils/debug.c3568
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diff --git a/binutils/debug.c b/binutils/debug.c
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--- /dev/null
+++ b/binutils/debug.c
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+/* debug.c -- Handle generic debugging information.
+ Copyright (C) 1995, 1996, 1998 Free Software Foundation, Inc.
+ Written by Ian Lance Taylor <ian@cygnus.com>.
+
+ This file is part of GNU Binutils.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 2 of the License, or
+ (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, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+ 02111-1307, USA. */
+
+/* This file implements a generic debugging format. We may eventually
+ have readers which convert different formats into this generic
+ format, and writers which write it out. The initial impetus for
+ this was writing a convertor from stabs to HP IEEE-695 debugging
+ format. */
+
+#include <stdio.h>
+#include <assert.h>
+
+#include "bfd.h"
+#include "bucomm.h"
+#include "libiberty.h"
+#include "debug.h"
+
+/* Global information we keep for debugging. A pointer to this
+ structure is the debugging handle passed to all the routines. */
+
+struct debug_handle
+{
+ /* A linked list of compilation units. */
+ struct debug_unit *units;
+ /* The current compilation unit. */
+ struct debug_unit *current_unit;
+ /* The current source file. */
+ struct debug_file *current_file;
+ /* The current function. */
+ struct debug_function *current_function;
+ /* The current block. */
+ struct debug_block *current_block;
+ /* The current line number information for the current unit. */
+ struct debug_lineno *current_lineno;
+ /* Mark. This is used by debug_write. */
+ unsigned int mark;
+ /* A struct/class ID used by debug_write. */
+ unsigned int class_id;
+ /* The base for class_id for this call to debug_write. */
+ unsigned int base_id;
+ /* The current line number in debug_write. */
+ struct debug_lineno *current_write_lineno;
+ unsigned int current_write_lineno_index;
+ /* A list of classes which have assigned ID's during debug_write.
+ This is linked through the next_id field of debug_class_type. */
+ struct debug_class_id *id_list;
+ /* A list used to avoid recursion during debug_type_samep. */
+ struct debug_type_compare_list *compare_list;
+};
+
+/* Information we keep for a single compilation unit. */
+
+struct debug_unit
+{
+ /* The next compilation unit. */
+ struct debug_unit *next;
+ /* A list of files included in this compilation unit. The first
+ file is always the main one, and that is where the main file name
+ is stored. */
+ struct debug_file *files;
+ /* Line number information for this compilation unit. This is not
+ stored by function, because assembler code may have line number
+ information without function information. */
+ struct debug_lineno *linenos;
+};
+
+/* Information kept for a single source file. */
+
+struct debug_file
+{
+ /* The next source file in this compilation unit. */
+ struct debug_file *next;
+ /* The name of the source file. */
+ const char *filename;
+ /* Global functions, variables, types, etc. */
+ struct debug_namespace *globals;
+};
+
+/* A type. */
+
+struct debug_type
+{
+ /* Kind of type. */
+ enum debug_type_kind kind;
+ /* Size of type (0 if not known). */
+ unsigned int size;
+ /* Type which is a pointer to this type. */
+ debug_type pointer;
+ /* Tagged union with additional information about the type. */
+ union
+ {
+ /* DEBUG_KIND_INDIRECT. */
+ struct debug_indirect_type *kindirect;
+ /* DEBUG_KIND_INT. */
+ /* Whether the integer is unsigned. */
+ boolean kint;
+ /* DEBUG_KIND_STRUCT, DEBUG_KIND_UNION, DEBUG_KIND_CLASS,
+ DEBUG_KIND_UNION_CLASS. */
+ struct debug_class_type *kclass;
+ /* DEBUG_KIND_ENUM. */
+ struct debug_enum_type *kenum;
+ /* DEBUG_KIND_POINTER. */
+ struct debug_type *kpointer;
+ /* DEBUG_KIND_FUNCTION. */
+ struct debug_function_type *kfunction;
+ /* DEBUG_KIND_REFERENCE. */
+ struct debug_type *kreference;
+ /* DEBUG_KIND_RANGE. */
+ struct debug_range_type *krange;
+ /* DEBUG_KIND_ARRAY. */
+ struct debug_array_type *karray;
+ /* DEBUG_KIND_SET. */
+ struct debug_set_type *kset;
+ /* DEBUG_KIND_OFFSET. */
+ struct debug_offset_type *koffset;
+ /* DEBUG_KIND_METHOD. */
+ struct debug_method_type *kmethod;
+ /* DEBUG_KIND_CONST. */
+ struct debug_type *kconst;
+ /* DEBUG_KIND_VOLATILE. */
+ struct debug_type *kvolatile;
+ /* DEBUG_KIND_NAMED, DEBUG_KIND_TAGGED. */
+ struct debug_named_type *knamed;
+ } u;
+};
+
+/* Information kept for an indirect type. */
+
+struct debug_indirect_type
+{
+ /* Slot where the final type will appear. */
+ debug_type *slot;
+ /* Tag. */
+ const char *tag;
+};
+
+/* Information kept for a struct, union, or class. */
+
+struct debug_class_type
+{
+ /* NULL terminated array of fields. */
+ debug_field *fields;
+ /* A mark field which indicates whether the struct has already been
+ printed. */
+ unsigned int mark;
+ /* This is used to uniquely identify unnamed structs when printing. */
+ unsigned int id;
+ /* The remaining fields are only used for DEBUG_KIND_CLASS and
+ DEBUG_KIND_UNION_CLASS. */
+ /* NULL terminated array of base classes. */
+ debug_baseclass *baseclasses;
+ /* NULL terminated array of methods. */
+ debug_method *methods;
+ /* The type of the class providing the virtual function table for
+ this class. This may point to the type itself. */
+ debug_type vptrbase;
+};
+
+/* Information kept for an enum. */
+
+struct debug_enum_type
+{
+ /* NULL terminated array of names. */
+ const char **names;
+ /* Array of corresponding values. */
+ bfd_signed_vma *values;
+};
+
+/* Information kept for a function. FIXME: We should be able to
+ record the parameter types. */
+
+struct debug_function_type
+{
+ /* Return type. */
+ debug_type return_type;
+ /* NULL terminated array of argument types. */
+ debug_type *arg_types;
+ /* Whether the function takes a variable number of arguments. */
+ boolean varargs;
+};
+
+/* Information kept for a range. */
+
+struct debug_range_type
+{
+ /* Range base type. */
+ debug_type type;
+ /* Lower bound. */
+ bfd_signed_vma lower;
+ /* Upper bound. */
+ bfd_signed_vma upper;
+};
+
+/* Information kept for an array. */
+
+struct debug_array_type
+{
+ /* Element type. */
+ debug_type element_type;
+ /* Range type. */
+ debug_type range_type;
+ /* Lower bound. */
+ bfd_signed_vma lower;
+ /* Upper bound. */
+ bfd_signed_vma upper;
+ /* Whether this array is really a string. */
+ boolean stringp;
+};
+
+/* Information kept for a set. */
+
+struct debug_set_type
+{
+ /* Base type. */
+ debug_type type;
+ /* Whether this set is really a bitstring. */
+ boolean bitstringp;
+};
+
+/* Information kept for an offset type (a based pointer). */
+
+struct debug_offset_type
+{
+ /* The type the pointer is an offset from. */
+ debug_type base_type;
+ /* The type the pointer points to. */
+ debug_type target_type;
+};
+
+/* Information kept for a method type. */
+
+struct debug_method_type
+{
+ /* The return type. */
+ debug_type return_type;
+ /* The object type which this method is for. */
+ debug_type domain_type;
+ /* A NULL terminated array of argument types. */
+ debug_type *arg_types;
+ /* Whether the method takes a variable number of arguments. */
+ boolean varargs;
+};
+
+/* Information kept for a named type. */
+
+struct debug_named_type
+{
+ /* Name. */
+ struct debug_name *name;
+ /* Real type. */
+ debug_type type;
+};
+
+/* A field in a struct or union. */
+
+struct debug_field
+{
+ /* Name of the field. */
+ const char *name;
+ /* Type of the field. */
+ struct debug_type *type;
+ /* Visibility of the field. */
+ enum debug_visibility visibility;
+ /* Whether this is a static member. */
+ boolean static_member;
+ union
+ {
+ /* If static_member is false. */
+ struct
+ {
+ /* Bit position of the field in the struct. */
+ unsigned int bitpos;
+ /* Size of the field in bits. */
+ unsigned int bitsize;
+ } f;
+ /* If static_member is true. */
+ struct
+ {
+ const char *physname;
+ } s;
+ } u;
+};
+
+/* A base class for an object. */
+
+struct debug_baseclass
+{
+ /* Type of the base class. */
+ struct debug_type *type;
+ /* Bit position of the base class in the object. */
+ unsigned int bitpos;
+ /* Whether the base class is virtual. */
+ boolean virtual;
+ /* Visibility of the base class. */
+ enum debug_visibility visibility;
+};
+
+/* A method of an object. */
+
+struct debug_method
+{
+ /* The name of the method. */
+ const char *name;
+ /* A NULL terminated array of different types of variants. */
+ struct debug_method_variant **variants;
+};
+
+/* The variants of a method function of an object. These indicate
+ which method to run. */
+
+struct debug_method_variant
+{
+ /* The physical name of the function. */
+ const char *physname;
+ /* The type of the function. */
+ struct debug_type *type;
+ /* The visibility of the function. */
+ enum debug_visibility visibility;
+ /* Whether the function is const. */
+ boolean constp;
+ /* Whether the function is volatile. */
+ boolean volatilep;
+ /* The offset to the function in the virtual function table. */
+ bfd_vma voffset;
+ /* If voffset is VOFFSET_STATIC_METHOD, this is a static method. */
+#define VOFFSET_STATIC_METHOD ((bfd_vma) -1)
+ /* Context of a virtual method function. */
+ struct debug_type *context;
+};
+
+/* A variable. This is the information we keep for a variable object.
+ This has no name; a name is associated with a variable in a
+ debug_name structure. */
+
+struct debug_variable
+{
+ /* Kind of variable. */
+ enum debug_var_kind kind;
+ /* Type. */
+ debug_type type;
+ /* Value. The interpretation of the value depends upon kind. */
+ bfd_vma val;
+};
+
+/* A function. This has no name; a name is associated with a function
+ in a debug_name structure. */
+
+struct debug_function
+{
+ /* Return type. */
+ debug_type return_type;
+ /* Parameter information. */
+ struct debug_parameter *parameters;
+ /* Block information. The first structure on the list is the main
+ block of the function, and describes function local variables. */
+ struct debug_block *blocks;
+};
+
+/* A function parameter. */
+
+struct debug_parameter
+{
+ /* Next parameter. */
+ struct debug_parameter *next;
+ /* Name. */
+ const char *name;
+ /* Type. */
+ debug_type type;
+ /* Kind. */
+ enum debug_parm_kind kind;
+ /* Value (meaning depends upon kind). */
+ bfd_vma val;
+};
+
+/* A typed constant. */
+
+struct debug_typed_constant
+{
+ /* Type. */
+ debug_type type;
+ /* Value. FIXME: We may eventually need to support non-integral
+ values. */
+ bfd_vma val;
+};
+
+/* Information about a block within a function. */
+
+struct debug_block
+{
+ /* Next block with the same parent. */
+ struct debug_block *next;
+ /* Parent block. */
+ struct debug_block *parent;
+ /* List of child blocks. */
+ struct debug_block *children;
+ /* Start address of the block. */
+ bfd_vma start;
+ /* End address of the block. */
+ bfd_vma end;
+ /* Local variables. */
+ struct debug_namespace *locals;
+};
+
+/* Line number information we keep for a compilation unit. FIXME:
+ This structure is easy to create, but can be very space
+ inefficient. */
+
+struct debug_lineno
+{
+ /* More line number information for this block. */
+ struct debug_lineno *next;
+ /* Source file. */
+ struct debug_file *file;
+ /* Line numbers, terminated by a -1 or the end of the array. */
+#define DEBUG_LINENO_COUNT 10
+ unsigned long linenos[DEBUG_LINENO_COUNT];
+ /* Addresses for the line numbers. */
+ bfd_vma addrs[DEBUG_LINENO_COUNT];
+};
+
+/* A namespace. This is a mapping from names to objects. FIXME: This
+ should be implemented as a hash table. */
+
+struct debug_namespace
+{
+ /* List of items in this namespace. */
+ struct debug_name *list;
+ /* Pointer to where the next item in this namespace should go. */
+ struct debug_name **tail;
+};
+
+/* Kinds of objects that appear in a namespace. */
+
+enum debug_object_kind
+{
+ /* A type. */
+ DEBUG_OBJECT_TYPE,
+ /* A tagged type (really a different sort of namespace). */
+ DEBUG_OBJECT_TAG,
+ /* A variable. */
+ DEBUG_OBJECT_VARIABLE,
+ /* A function. */
+ DEBUG_OBJECT_FUNCTION,
+ /* An integer constant. */
+ DEBUG_OBJECT_INT_CONSTANT,
+ /* A floating point constant. */
+ DEBUG_OBJECT_FLOAT_CONSTANT,
+ /* A typed constant. */
+ DEBUG_OBJECT_TYPED_CONSTANT
+};
+
+/* Linkage of an object that appears in a namespace. */
+
+enum debug_object_linkage
+{
+ /* Local variable. */
+ DEBUG_LINKAGE_AUTOMATIC,
+ /* Static--either file static or function static, depending upon the
+ namespace is. */
+ DEBUG_LINKAGE_STATIC,
+ /* Global. */
+ DEBUG_LINKAGE_GLOBAL,
+ /* No linkage. */
+ DEBUG_LINKAGE_NONE
+};
+
+/* A name in a namespace. */
+
+struct debug_name
+{
+ /* Next name in this namespace. */
+ struct debug_name *next;
+ /* Name. */
+ const char *name;
+ /* Mark. This is used by debug_write. */
+ unsigned int mark;
+ /* Kind of object. */
+ enum debug_object_kind kind;
+ /* Linkage of object. */
+ enum debug_object_linkage linkage;
+ /* Tagged union with additional information about the object. */
+ union
+ {
+ /* DEBUG_OBJECT_TYPE. */
+ struct debug_type *type;
+ /* DEBUG_OBJECT_TAG. */
+ struct debug_type *tag;
+ /* DEBUG_OBJECT_VARIABLE. */
+ struct debug_variable *variable;
+ /* DEBUG_OBJECT_FUNCTION. */
+ struct debug_function *function;
+ /* DEBUG_OBJECT_INT_CONSTANT. */
+ bfd_vma int_constant;
+ /* DEBUG_OBJECT_FLOAT_CONSTANT. */
+ double float_constant;
+ /* DEBUG_OBJECT_TYPED_CONSTANT. */
+ struct debug_typed_constant *typed_constant;
+ } u;
+};
+
+/* During debug_write, a linked list of these structures is used to
+ keep track of ID numbers that have been assigned to classes. */
+
+struct debug_class_id
+{
+ /* Next ID number. */
+ struct debug_class_id *next;
+ /* The type with the ID. */
+ struct debug_type *type;
+ /* The tag; NULL if no tag. */
+ const char *tag;
+};
+
+/* During debug_type_samep, a linked list of these structures is kept
+ on the stack to avoid infinite recursion. */
+
+struct debug_type_compare_list
+{
+ /* Next type on list. */
+ struct debug_type_compare_list *next;
+ /* The types we are comparing. */
+ struct debug_type *t1;
+ struct debug_type *t2;
+};
+
+/* During debug_get_real_type, a linked list of these structures is
+ kept on the stack to avoid infinite recursion. */
+
+struct debug_type_real_list
+{
+ /* Next type on list. */
+ struct debug_type_real_list *next;
+ /* The type we are checking. */
+ struct debug_type *t;
+};
+
+/* Local functions. */
+
+static void debug_error PARAMS ((const char *));
+static struct debug_name *debug_add_to_namespace
+ PARAMS ((struct debug_handle *, struct debug_namespace **, const char *,
+ enum debug_object_kind, enum debug_object_linkage));
+static struct debug_name *debug_add_to_current_namespace
+ PARAMS ((struct debug_handle *, const char *, enum debug_object_kind,
+ enum debug_object_linkage));
+static struct debug_type *debug_make_type
+ PARAMS ((struct debug_handle *, enum debug_type_kind, unsigned int));
+static struct debug_type *debug_get_real_type
+ PARAMS ((PTR, debug_type, struct debug_type_real_list *));
+static boolean debug_write_name
+ PARAMS ((struct debug_handle *, const struct debug_write_fns *, PTR,
+ struct debug_name *));
+static boolean debug_write_type
+ PARAMS ((struct debug_handle *, const struct debug_write_fns *, PTR,
+ struct debug_type *, struct debug_name *));
+static boolean debug_write_class_type
+ PARAMS ((struct debug_handle *, const struct debug_write_fns *, PTR,
+ struct debug_type *, const char *));
+static boolean debug_write_function
+ PARAMS ((struct debug_handle *, const struct debug_write_fns *, PTR,
+ const char *, enum debug_object_linkage, struct debug_function *));
+static boolean debug_write_block
+ PARAMS ((struct debug_handle *, const struct debug_write_fns *, PTR,
+ struct debug_block *));
+static boolean debug_write_linenos
+ PARAMS ((struct debug_handle *, const struct debug_write_fns *, PTR,
+ bfd_vma));
+static boolean debug_set_class_id
+ PARAMS ((struct debug_handle *, const char *, struct debug_type *));
+static boolean debug_type_samep
+ PARAMS ((struct debug_handle *, struct debug_type *, struct debug_type *));
+static boolean debug_class_type_samep
+ PARAMS ((struct debug_handle *, struct debug_type *, struct debug_type *));
+
+/* Issue an error message. */
+
+static void
+debug_error (message)
+ const char *message;
+{
+ fprintf (stderr, "%s\n", message);
+}
+
+/* Add an object to a namespace. */
+
+static struct debug_name *
+debug_add_to_namespace (info, nsp, name, kind, linkage)
+ struct debug_handle *info;
+ struct debug_namespace **nsp;
+ const char *name;
+ enum debug_object_kind kind;
+ enum debug_object_linkage linkage;
+{
+ struct debug_name *n;
+ struct debug_namespace *ns;
+
+ n = (struct debug_name *) xmalloc (sizeof *n);
+ memset (n, 0, sizeof *n);
+
+ n->name = name;
+ n->kind = kind;
+ n->linkage = linkage;
+
+ ns = *nsp;
+ if (ns == NULL)
+ {
+ ns = (struct debug_namespace *) xmalloc (sizeof *ns);
+ memset (ns, 0, sizeof *ns);
+
+ ns->tail = &ns->list;
+
+ *nsp = ns;
+ }
+
+ *ns->tail = n;
+ ns->tail = &n->next;
+
+ return n;
+}
+
+/* Add an object to the current namespace. */
+
+static struct debug_name *
+debug_add_to_current_namespace (info, name, kind, linkage)
+ struct debug_handle *info;
+ const char *name;
+ enum debug_object_kind kind;
+ enum debug_object_linkage linkage;
+{
+ struct debug_namespace **nsp;
+
+ if (info->current_unit == NULL
+ || info->current_file == NULL)
+ {
+ debug_error (_("debug_add_to_current_namespace: no current file"));
+ return NULL;
+ }
+
+ if (info->current_block != NULL)
+ nsp = &info->current_block->locals;
+ else
+ nsp = &info->current_file->globals;
+
+ return debug_add_to_namespace (info, nsp, name, kind, linkage);
+}
+
+/* Return a handle for debugging information. */
+
+PTR
+debug_init ()
+{
+ struct debug_handle *ret;
+
+ ret = (struct debug_handle *) xmalloc (sizeof *ret);
+ memset (ret, 0, sizeof *ret);
+ return (PTR) ret;
+}
+
+/* Set the source filename. This implicitly starts a new compilation
+ unit. */
+
+boolean
+debug_set_filename (handle, name)
+ PTR handle;
+ const char *name;
+{
+ struct debug_handle *info = (struct debug_handle *) handle;
+ struct debug_file *nfile;
+ struct debug_unit *nunit;
+
+ if (name == NULL)
+ name = "";
+
+ nfile = (struct debug_file *) xmalloc (sizeof *nfile);
+ memset (nfile, 0, sizeof *nfile);
+
+ nfile->filename = name;
+
+ nunit = (struct debug_unit *) xmalloc (sizeof *nunit);
+ memset (nunit, 0, sizeof *nunit);
+
+ nunit->files = nfile;
+ info->current_file = nfile;
+
+ if (info->current_unit != NULL)
+ info->current_unit->next = nunit;
+ else
+ {
+ assert (info->units == NULL);
+ info->units = nunit;
+ }
+
+ info->current_unit = nunit;
+
+ info->current_function = NULL;
+ info->current_block = NULL;
+ info->current_lineno = NULL;
+
+ return true;
+}
+
+/* Change source files to the given file name. This is used for
+ include files in a single compilation unit. */
+
+boolean
+debug_start_source (handle, name)
+ PTR handle;
+ const char *name;
+{
+ struct debug_handle *info = (struct debug_handle *) handle;
+ struct debug_file *f, **pf;
+
+ if (name == NULL)
+ name = "";
+
+ if (info->current_unit == NULL)
+ {
+ debug_error (_("debug_start_source: no debug_set_filename call"));
+ return false;
+ }
+
+ for (f = info->current_unit->files; f != NULL; f = f->next)
+ {
+ if (f->filename[0] == name[0]
+ && f->filename[1] == name[1]
+ && strcmp (f->filename, name) == 0)
+ {
+ info->current_file = f;
+ return true;
+ }
+ }
+
+ f = (struct debug_file *) xmalloc (sizeof *f);
+ memset (f, 0, sizeof *f);
+
+ f->filename = name;
+
+ for (pf = &info->current_file->next;
+ *pf != NULL;
+ pf = &(*pf)->next)
+ ;
+ *pf = f;
+
+ info->current_file = f;
+
+ return true;
+}
+
+/* Record a function definition. This implicitly starts a function
+ block. The debug_type argument is the type of the return value.
+ The boolean indicates whether the function is globally visible.
+ The bfd_vma is the address of the start of the function. Currently
+ the parameter types are specified by calls to
+ debug_record_parameter. FIXME: There is no way to specify nested
+ functions. */
+
+boolean
+debug_record_function (handle, name, return_type, global, addr)
+ PTR handle;
+ const char *name;
+ debug_type return_type;
+ boolean global;
+ bfd_vma addr;
+{
+ struct debug_handle *info = (struct debug_handle *) handle;
+ struct debug_function *f;
+ struct debug_block *b;
+ struct debug_name *n;
+
+ if (name == NULL)
+ name = "";
+ if (return_type == NULL)
+ return false;
+
+ if (info->current_unit == NULL)
+ {
+ debug_error (_("debug_record_function: no debug_set_filename call"));
+ return false;
+ }
+
+ f = (struct debug_function *) xmalloc (sizeof *f);
+ memset (f, 0, sizeof *f);
+
+ f->return_type = return_type;
+
+ b = (struct debug_block *) xmalloc (sizeof *b);
+ memset (b, 0, sizeof *b);
+
+ b->start = addr;
+ b->end = (bfd_vma) -1;
+
+ f->blocks = b;
+
+ info->current_function = f;
+ info->current_block = b;
+
+ /* FIXME: If we could handle nested functions, this would be the
+ place: we would want to use a different namespace. */
+ n = debug_add_to_namespace (info,
+ &info->current_file->globals,
+ name,
+ DEBUG_OBJECT_FUNCTION,
+ (global
+ ? DEBUG_LINKAGE_GLOBAL
+ : DEBUG_LINKAGE_STATIC));
+ if (n == NULL)
+ return false;
+
+ n->u.function = f;
+
+ return true;
+}
+
+/* Record a parameter for the current function. */
+
+boolean
+debug_record_parameter (handle, name, type, kind, val)
+ PTR handle;
+ const char *name;
+ debug_type type;
+ enum debug_parm_kind kind;
+ bfd_vma val;
+{
+ struct debug_handle *info = (struct debug_handle *) handle;
+ struct debug_parameter *p, **pp;
+
+ if (name == NULL || type == NULL)
+ return false;
+
+ if (info->current_unit == NULL
+ || info->current_function == NULL)
+ {
+ debug_error (_("debug_record_parameter: no current function"));
+ return false;
+ }
+
+ p = (struct debug_parameter *) xmalloc (sizeof *p);
+ memset (p, 0, sizeof *p);
+
+ p->name = name;
+ p->type = type;
+ p->kind = kind;
+ p->val = val;
+
+ for (pp = &info->current_function->parameters;
+ *pp != NULL;
+ pp = &(*pp)->next)
+ ;
+ *pp = p;
+
+ return true;
+}
+
+/* End a function. FIXME: This should handle function nesting. */
+
+boolean
+debug_end_function (handle, addr)
+ PTR handle;
+ bfd_vma addr;
+{
+ struct debug_handle *info = (struct debug_handle *) handle;
+
+ if (info->current_unit == NULL
+ || info->current_block == NULL
+ || info->current_function == NULL)
+ {
+ debug_error (_("debug_end_function: no current function"));
+ return false;
+ }
+
+ if (info->current_block->parent != NULL)
+ {
+ debug_error (_("debug_end_function: some blocks were not closed"));
+ return false;
+ }
+
+ info->current_block->end = addr;
+
+ info->current_function = NULL;
+ info->current_block = NULL;
+
+ return true;
+}
+
+/* Start a block in a function. All local information will be
+ recorded in this block, until the matching call to debug_end_block.
+ debug_start_block and debug_end_block may be nested. The bfd_vma
+ argument is the address at which this block starts. */
+
+boolean
+debug_start_block (handle, addr)
+ PTR handle;
+ bfd_vma addr;
+{
+ struct debug_handle *info = (struct debug_handle *) handle;
+ struct debug_block *b, **pb;
+
+ /* We must always have a current block: debug_record_function sets
+ one up. */
+ if (info->current_unit == NULL
+ || info->current_block == NULL)
+ {
+ debug_error (_("debug_start_block: no current block"));
+ return false;
+ }
+
+ b = (struct debug_block *) xmalloc (sizeof *b);
+ memset (b, 0, sizeof *b);
+
+ b->parent = info->current_block;
+ b->start = addr;
+ b->end = (bfd_vma) -1;
+
+ /* This new block is a child of the current block. */
+ for (pb = &info->current_block->children;
+ *pb != NULL;
+ pb = &(*pb)->next)
+ ;
+ *pb = b;
+
+ info->current_block = b;
+
+ return true;
+}
+
+/* Finish a block in a function. This matches the call to
+ debug_start_block. The argument is the address at which this block
+ ends. */
+
+boolean
+debug_end_block (handle, addr)
+ PTR handle;
+ bfd_vma addr;
+{
+ struct debug_handle *info = (struct debug_handle *) handle;
+ struct debug_block *parent;
+
+ if (info->current_unit == NULL
+ || info->current_block == NULL)
+ {
+ debug_error (_("debug_end_block: no current block"));
+ return false;
+ }
+
+ parent = info->current_block->parent;
+ if (parent == NULL)
+ {
+ debug_error (_("debug_end_block: attempt to close top level block"));
+ return false;
+ }
+
+ info->current_block->end = addr;
+
+ info->current_block = parent;
+
+ return true;
+}
+
+/* Associate a line number in the current source file and function
+ with a given address. */
+
+boolean
+debug_record_line (handle, lineno, addr)
+ PTR handle;
+ unsigned long lineno;
+ bfd_vma addr;
+{
+ struct debug_handle *info = (struct debug_handle *) handle;
+ struct debug_lineno *l;
+ unsigned int i;
+
+ if (info->current_unit == NULL)
+ {
+ debug_error (_("debug_record_line: no current unit"));
+ return false;
+ }
+
+ l = info->current_lineno;
+ if (l != NULL && l->file == info->current_file)
+ {
+ for (i = 0; i < DEBUG_LINENO_COUNT; i++)
+ {
+ if (l->linenos[i] == (unsigned long) -1)
+ {
+ l->linenos[i] = lineno;
+ l->addrs[i] = addr;
+ return true;
+ }
+ }
+ }
+
+ /* If we get here, then either 1) there is no current_lineno
+ structure, which means this is the first line number in this
+ compilation unit, 2) the current_lineno structure is for a
+ different file, or 3) the current_lineno structure is full.
+ Regardless, we want to allocate a new debug_lineno structure, put
+ it in the right place, and make it the new current_lineno
+ structure. */
+
+ l = (struct debug_lineno *) xmalloc (sizeof *l);
+ memset (l, 0, sizeof *l);
+
+ l->file = info->current_file;
+ l->linenos[0] = lineno;
+ l->addrs[0] = addr;
+ for (i = 1; i < DEBUG_LINENO_COUNT; i++)
+ l->linenos[i] = (unsigned long) -1;
+
+ if (info->current_lineno != NULL)
+ info->current_lineno->next = l;
+ else
+ info->current_unit->linenos = l;
+
+ info->current_lineno = l;
+
+ return true;
+}
+
+/* Start a named common block. This is a block of variables that may
+ move in memory. */
+
+boolean
+debug_start_common_block (handle, name)
+ PTR handle;
+ const char *name;
+{
+ /* FIXME */
+ debug_error (_("debug_start_common_block: not implemented"));
+ return false;
+}
+
+/* End a named common block. */
+
+boolean
+debug_end_common_block (handle, name)
+ PTR handle;
+ const char *name;
+{
+ /* FIXME */
+ debug_error (_("debug_end_common_block: not implemented"));
+ return false;
+}
+
+/* Record a named integer constant. */
+
+boolean
+debug_record_int_const (handle, name, val)
+ PTR handle;
+ const char *name;
+ bfd_vma val;
+{
+ struct debug_handle *info = (struct debug_handle *) handle;
+ struct debug_name *n;
+
+ if (name == NULL)
+ return false;
+
+ n = debug_add_to_current_namespace (info, name, DEBUG_OBJECT_INT_CONSTANT,
+ DEBUG_LINKAGE_NONE);
+ if (n == NULL)
+ return false;
+
+ n->u.int_constant = val;
+
+ return true;
+}
+
+/* Record a named floating point constant. */
+
+boolean
+debug_record_float_const (handle, name, val)
+ PTR handle;
+ const char *name;
+ double val;
+{
+ struct debug_handle *info = (struct debug_handle *) handle;
+ struct debug_name *n;
+
+ if (name == NULL)
+ return false;
+
+ n = debug_add_to_current_namespace (info, name, DEBUG_OBJECT_FLOAT_CONSTANT,
+ DEBUG_LINKAGE_NONE);
+ if (n == NULL)
+ return false;
+
+ n->u.float_constant = val;
+
+ return true;
+}
+
+/* Record a typed constant with an integral value. */
+
+boolean
+debug_record_typed_const (handle, name, type, val)
+ PTR handle;
+ const char *name;
+ debug_type type;
+ bfd_vma val;
+{
+ struct debug_handle *info = (struct debug_handle *) handle;
+ struct debug_name *n;
+ struct debug_typed_constant *tc;
+
+ if (name == NULL || type == NULL)
+ return false;
+
+ n = debug_add_to_current_namespace (info, name, DEBUG_OBJECT_TYPED_CONSTANT,
+ DEBUG_LINKAGE_NONE);
+ if (n == NULL)
+ return false;
+
+ tc = (struct debug_typed_constant *) xmalloc (sizeof *tc);
+ memset (tc, 0, sizeof *tc);
+
+ tc->type = type;
+ tc->val = val;
+
+ n->u.typed_constant = tc;
+
+ return true;
+}
+
+/* Record a label. */
+
+boolean
+debug_record_label (handle, name, type, addr)
+ PTR handle;
+ const char *name;
+ debug_type type;
+ bfd_vma addr;
+{
+ /* FIXME. */
+ debug_error (_("debug_record_label not implemented"));
+ return false;
+}
+
+/* Record a variable. */
+
+boolean
+debug_record_variable (handle, name, type, kind, val)
+ PTR handle;
+ const char *name;
+ debug_type type;
+ enum debug_var_kind kind;
+ bfd_vma val;
+{
+ struct debug_handle *info = (struct debug_handle *) handle;
+ struct debug_namespace **nsp;
+ enum debug_object_linkage linkage;
+ struct debug_name *n;
+ struct debug_variable *v;
+
+ if (name == NULL || type == NULL)
+ return false;
+
+ if (info->current_unit == NULL
+ || info->current_file == NULL)
+ {
+ debug_error (_("debug_record_variable: no current file"));
+ return false;
+ }
+
+ if (kind == DEBUG_GLOBAL || kind == DEBUG_STATIC)
+ {
+ nsp = &info->current_file->globals;
+ if (kind == DEBUG_GLOBAL)
+ linkage = DEBUG_LINKAGE_GLOBAL;
+ else
+ linkage = DEBUG_LINKAGE_STATIC;
+ }
+ else
+ {
+ if (info->current_block == NULL)
+ {
+ debug_error (_("debug_record_variable: no current block"));
+ return false;
+ }
+ nsp = &info->current_block->locals;
+ linkage = DEBUG_LINKAGE_AUTOMATIC;
+ }
+
+ n = debug_add_to_namespace (info, nsp, name, DEBUG_OBJECT_VARIABLE, linkage);
+ if (n == NULL)
+ return false;
+
+ v = (struct debug_variable *) xmalloc (sizeof *v);
+ memset (v, 0, sizeof *v);
+
+ v->kind = kind;
+ v->type = type;
+ v->val = val;
+
+ n->u.variable = v;
+
+ return true;
+}
+
+/* Make a type with a given kind and size. */
+
+/*ARGSUSED*/
+static struct debug_type *
+debug_make_type (info, kind, size)
+ struct debug_handle *info;
+ enum debug_type_kind kind;
+ unsigned int size;
+{
+ struct debug_type *t;
+
+ t = (struct debug_type *) xmalloc (sizeof *t);
+ memset (t, 0, sizeof *t);
+
+ t->kind = kind;
+ t->size = size;
+
+ return t;
+}
+
+/* Make an indirect type which may be used as a placeholder for a type
+ which is referenced before it is defined. */
+
+debug_type
+debug_make_indirect_type (handle, slot, tag)
+ PTR handle;
+ debug_type *slot;
+ const char *tag;
+{
+ struct debug_handle *info = (struct debug_handle *) handle;
+ struct debug_type *t;
+ struct debug_indirect_type *i;
+
+ t = debug_make_type (info, DEBUG_KIND_INDIRECT, 0);
+ if (t == NULL)
+ return DEBUG_TYPE_NULL;
+
+ i = (struct debug_indirect_type *) xmalloc (sizeof *i);
+ memset (i, 0, sizeof *i);
+
+ i->slot = slot;
+ i->tag = tag;
+
+ t->u.kindirect = i;
+
+ return t;
+}
+
+/* Make a void type. There is only one of these. */
+
+debug_type
+debug_make_void_type (handle)
+ PTR handle;
+{
+ struct debug_handle *info = (struct debug_handle *) handle;
+
+ return debug_make_type (info, DEBUG_KIND_VOID, 0);
+}
+
+/* Make an integer type of a given size. The boolean argument is true
+ if the integer is unsigned. */
+
+debug_type
+debug_make_int_type (handle, size, unsignedp)
+ PTR handle;
+ unsigned int size;
+ boolean unsignedp;
+{
+ struct debug_handle *info = (struct debug_handle *) handle;
+ struct debug_type *t;
+
+ t = debug_make_type (info, DEBUG_KIND_INT, size);
+ if (t == NULL)
+ return DEBUG_TYPE_NULL;
+
+ t->u.kint = unsignedp;
+
+ return t;
+}
+
+/* Make a floating point type of a given size. FIXME: On some
+ platforms, like an Alpha, you probably need to be able to specify
+ the format. */
+
+debug_type
+debug_make_float_type (handle, size)
+ PTR handle;
+ unsigned int size;
+{
+ struct debug_handle *info = (struct debug_handle *) handle;
+
+ return debug_make_type (info, DEBUG_KIND_FLOAT, size);
+}
+
+/* Make a boolean type of a given size. */
+
+debug_type
+debug_make_bool_type (handle, size)
+ PTR handle;
+ unsigned int size;
+{
+ struct debug_handle *info = (struct debug_handle *) handle;
+
+ return debug_make_type (info, DEBUG_KIND_BOOL, size);
+}
+
+/* Make a complex type of a given size. */
+
+debug_type
+debug_make_complex_type (handle, size)
+ PTR handle;
+ unsigned int size;
+{
+ struct debug_handle *info = (struct debug_handle *) handle;
+
+ return debug_make_type (info, DEBUG_KIND_COMPLEX, size);
+}
+
+/* Make a structure type. The second argument is true for a struct,
+ false for a union. The third argument is the size of the struct.
+ The fourth argument is a NULL terminated array of fields. */
+
+debug_type
+debug_make_struct_type (handle, structp, size, fields)
+ PTR handle;
+ boolean structp;
+ bfd_vma size;
+ debug_field *fields;
+{
+ struct debug_handle *info = (struct debug_handle *) handle;
+ struct debug_type *t;
+ struct debug_class_type *c;
+
+ t = debug_make_type (info,
+ structp ? DEBUG_KIND_STRUCT : DEBUG_KIND_UNION,
+ size);
+ if (t == NULL)
+ return DEBUG_TYPE_NULL;
+
+ c = (struct debug_class_type *) xmalloc (sizeof *c);
+ memset (c, 0, sizeof *c);
+
+ c->fields = fields;
+
+ t->u.kclass = c;
+
+ return t;
+}
+
+/* Make an object type. The first three arguments after the handle
+ are the same as for debug_make_struct_type. The next arguments are
+ a NULL terminated array of base classes, a NULL terminated array of
+ methods, the type of the object holding the virtual function table
+ if it is not this object, and a boolean which is true if this
+ object has its own virtual function table. */
+
+debug_type
+debug_make_object_type (handle, structp, size, fields, baseclasses,
+ methods, vptrbase, ownvptr)
+ PTR handle;
+ boolean structp;
+ bfd_vma size;
+ debug_field *fields;
+ debug_baseclass *baseclasses;
+ debug_method *methods;
+ debug_type vptrbase;
+ boolean ownvptr;
+{
+ struct debug_handle *info = (struct debug_handle *) handle;
+ struct debug_type *t;
+ struct debug_class_type *c;
+
+ t = debug_make_type (info,
+ structp ? DEBUG_KIND_CLASS : DEBUG_KIND_UNION_CLASS,
+ size);
+ if (t == NULL)
+ return DEBUG_TYPE_NULL;
+
+ c = (struct debug_class_type *) xmalloc (sizeof *c);
+ memset (c, 0, sizeof *c);
+
+ c->fields = fields;
+ c->baseclasses = baseclasses;
+ c->methods = methods;
+ if (ownvptr)
+ c->vptrbase = t;
+ else
+ c->vptrbase = vptrbase;
+
+ t->u.kclass = c;
+
+ return t;
+}
+
+/* Make an enumeration type. The arguments are a null terminated
+ array of strings, and an array of corresponding values. */
+
+debug_type
+debug_make_enum_type (handle, names, values)
+ PTR handle;
+ const char **names;
+ bfd_signed_vma *values;
+{
+ struct debug_handle *info = (struct debug_handle *) handle;
+ struct debug_type *t;
+ struct debug_enum_type *e;
+
+ t = debug_make_type (info, DEBUG_KIND_ENUM, 0);
+ if (t == NULL)
+ return DEBUG_TYPE_NULL;
+
+ e = (struct debug_enum_type *) xmalloc (sizeof *e);
+ memset (e, 0, sizeof *e);
+
+ e->names = names;
+ e->values = values;
+
+ t->u.kenum = e;
+
+ return t;
+}
+
+/* Make a pointer to a given type. */
+
+debug_type
+debug_make_pointer_type (handle, type)
+ PTR handle;
+ debug_type type;
+{
+ struct debug_handle *info = (struct debug_handle *) handle;
+ struct debug_type *t;
+
+ if (type == NULL)
+ return DEBUG_TYPE_NULL;
+
+ if (type->pointer != DEBUG_TYPE_NULL)
+ return type->pointer;
+
+ t = debug_make_type (info, DEBUG_KIND_POINTER, 0);
+ if (t == NULL)
+ return DEBUG_TYPE_NULL;
+
+ t->u.kpointer = type;
+
+ type->pointer = t;
+
+ return t;
+}
+
+/* Make a function returning a given type. FIXME: We should be able
+ to record the parameter types. */
+
+debug_type
+debug_make_function_type (handle, type, arg_types, varargs)
+ PTR handle;
+ debug_type type;
+ debug_type *arg_types;
+ boolean varargs;
+{
+ struct debug_handle *info = (struct debug_handle *) handle;
+ struct debug_type *t;
+ struct debug_function_type *f;
+
+ if (type == NULL)
+ return DEBUG_TYPE_NULL;
+
+ t = debug_make_type (info, DEBUG_KIND_FUNCTION, 0);
+ if (t == NULL)
+ return DEBUG_TYPE_NULL;
+
+ f = (struct debug_function_type *) xmalloc (sizeof *f);
+ memset (f, 0, sizeof *f);
+
+ f->return_type = type;
+ f->arg_types = arg_types;
+ f->varargs = varargs;
+
+ t->u.kfunction = f;
+
+ return t;
+}
+
+/* Make a reference to a given type. */
+
+debug_type
+debug_make_reference_type (handle, type)
+ PTR handle;
+ debug_type type;
+{
+ struct debug_handle *info = (struct debug_handle *) handle;
+ struct debug_type *t;
+
+ if (type == NULL)
+ return DEBUG_TYPE_NULL;
+
+ t = debug_make_type (info, DEBUG_KIND_REFERENCE, 0);
+ if (t == NULL)
+ return DEBUG_TYPE_NULL;
+
+ t->u.kreference = type;
+
+ return t;
+}
+
+/* Make a range of a given type from a lower to an upper bound. */
+
+debug_type
+debug_make_range_type (handle, type, lower, upper)
+ PTR handle;
+ debug_type type;
+ bfd_signed_vma lower;
+ bfd_signed_vma upper;
+{
+ struct debug_handle *info = (struct debug_handle *) handle;
+ struct debug_type *t;
+ struct debug_range_type *r;
+
+ if (type == NULL)
+ return DEBUG_TYPE_NULL;
+
+ t = debug_make_type (info, DEBUG_KIND_RANGE, 0);
+ if (t == NULL)
+ return DEBUG_TYPE_NULL;
+
+ r = (struct debug_range_type *) xmalloc (sizeof *r);
+ memset (r, 0, sizeof *r);
+
+ r->type = type;
+ r->lower = lower;
+ r->upper = upper;
+
+ t->u.krange = r;
+
+ return t;
+}
+
+/* Make an array type. The second argument is the type of an element
+ of the array. The third argument is the type of a range of the
+ array. The fourth and fifth argument are the lower and upper
+ bounds, respectively. The sixth argument is true if this array is
+ actually a string, as in C. */
+
+debug_type
+debug_make_array_type (handle, element_type, range_type, lower, upper,
+ stringp)
+ PTR handle;
+ debug_type element_type;
+ debug_type range_type;
+ bfd_signed_vma lower;
+ bfd_signed_vma upper;
+ boolean stringp;
+{
+ struct debug_handle *info = (struct debug_handle *) handle;
+ struct debug_type *t;
+ struct debug_array_type *a;
+
+ if (element_type == NULL || range_type == NULL)
+ return DEBUG_TYPE_NULL;
+
+ t = debug_make_type (info, DEBUG_KIND_ARRAY, 0);
+ if (t == NULL)
+ return DEBUG_TYPE_NULL;
+
+ a = (struct debug_array_type *) xmalloc (sizeof *a);
+ memset (a, 0, sizeof *a);
+
+ a->element_type = element_type;
+ a->range_type = range_type;
+ a->lower = lower;
+ a->upper = upper;
+ a->stringp = stringp;
+
+ t->u.karray = a;
+
+ return t;
+}
+
+/* Make a set of a given type. For example, a Pascal set type. The
+ boolean argument is true if this set is actually a bitstring, as in
+ CHILL. */
+
+debug_type
+debug_make_set_type (handle, type, bitstringp)
+ PTR handle;
+ debug_type type;
+ boolean bitstringp;
+{
+ struct debug_handle *info = (struct debug_handle *) handle;
+ struct debug_type *t;
+ struct debug_set_type *s;
+
+ if (type == NULL)
+ return DEBUG_TYPE_NULL;
+
+ t = debug_make_type (info, DEBUG_KIND_SET, 0);
+ if (t == NULL)
+ return DEBUG_TYPE_NULL;
+
+ s = (struct debug_set_type *) xmalloc (sizeof *s);
+ memset (s, 0, sizeof *s);
+
+ s->type = type;
+ s->bitstringp = bitstringp;
+
+ t->u.kset = s;
+
+ return t;
+}
+
+/* Make a type for a pointer which is relative to an object. The
+ second argument is the type of the object to which the pointer is
+ relative. The third argument is the type that the pointer points
+ to. */
+
+debug_type
+debug_make_offset_type (handle, base_type, target_type)
+ PTR handle;
+ debug_type base_type;
+ debug_type target_type;
+{
+ struct debug_handle *info = (struct debug_handle *) handle;
+ struct debug_type *t;
+ struct debug_offset_type *o;
+
+ if (base_type == NULL || target_type == NULL)
+ return DEBUG_TYPE_NULL;
+
+ t = debug_make_type (info, DEBUG_KIND_OFFSET, 0);
+ if (t == NULL)
+ return DEBUG_TYPE_NULL;
+
+ o = (struct debug_offset_type *) xmalloc (sizeof *o);
+ memset (o, 0, sizeof *o);
+
+ o->base_type = base_type;
+ o->target_type = target_type;
+
+ t->u.koffset = o;
+
+ return t;
+}
+
+/* Make a type for a method function. The second argument is the
+ return type, the third argument is the domain, and the fourth
+ argument is a NULL terminated array of argument types. */
+
+debug_type
+debug_make_method_type (handle, return_type, domain_type, arg_types, varargs)
+ PTR handle;
+ debug_type return_type;
+ debug_type domain_type;
+ debug_type *arg_types;
+ boolean varargs;
+{
+ struct debug_handle *info = (struct debug_handle *) handle;
+ struct debug_type *t;
+ struct debug_method_type *m;
+
+ if (return_type == NULL)
+ return DEBUG_TYPE_NULL;
+
+ t = debug_make_type (info, DEBUG_KIND_METHOD, 0);
+ if (t == NULL)
+ return DEBUG_TYPE_NULL;
+
+ m = (struct debug_method_type *) xmalloc (sizeof *m);
+ memset (m, 0, sizeof *m);
+
+ m->return_type = return_type;
+ m->domain_type = domain_type;
+ m->arg_types = arg_types;
+ m->varargs = varargs;
+
+ t->u.kmethod = m;
+
+ return t;
+}
+
+/* Make a const qualified version of a given type. */
+
+debug_type
+debug_make_const_type (handle, type)
+ PTR handle;
+ debug_type type;
+{
+ struct debug_handle *info = (struct debug_handle *) handle;
+ struct debug_type *t;
+
+ if (type == NULL)
+ return DEBUG_TYPE_NULL;
+
+ t = debug_make_type (info, DEBUG_KIND_CONST, 0);
+ if (t == NULL)
+ return DEBUG_TYPE_NULL;
+
+ t->u.kconst = type;
+
+ return t;
+}
+
+/* Make a volatile qualified version of a given type. */
+
+debug_type
+debug_make_volatile_type (handle, type)
+ PTR handle;
+ debug_type type;
+{
+ struct debug_handle *info = (struct debug_handle *) handle;
+ struct debug_type *t;
+
+ if (type == NULL)
+ return DEBUG_TYPE_NULL;
+
+ t = debug_make_type (info, DEBUG_KIND_VOLATILE, 0);
+ if (t == NULL)
+ return DEBUG_TYPE_NULL;
+
+ t->u.kvolatile = type;
+
+ return t;
+}
+
+/* Make an undefined tagged type. For example, a struct which has
+ been mentioned, but not defined. */
+
+debug_type
+debug_make_undefined_tagged_type (handle, name, kind)
+ PTR handle;
+ const char *name;
+ enum debug_type_kind kind;
+{
+ struct debug_handle *info = (struct debug_handle *) handle;
+ struct debug_type *t;
+
+ if (name == NULL)
+ return DEBUG_TYPE_NULL;
+
+ switch (kind)
+ {
+ case DEBUG_KIND_STRUCT:
+ case DEBUG_KIND_UNION:
+ case DEBUG_KIND_CLASS:
+ case DEBUG_KIND_UNION_CLASS:
+ case DEBUG_KIND_ENUM:
+ break;
+
+ default:
+ debug_error (_("debug_make_undefined_type: unsupported kind"));
+ return DEBUG_TYPE_NULL;
+ }
+
+ t = debug_make_type (info, kind, 0);
+ if (t == NULL)
+ return DEBUG_TYPE_NULL;
+
+ return debug_tag_type (handle, name, t);
+}
+
+/* Make a base class for an object. The second argument is the base
+ class type. The third argument is the bit position of this base
+ class in the object (always 0 unless doing multiple inheritance).
+ The fourth argument is whether this is a virtual class. The fifth
+ argument is the visibility of the base class. */
+
+/*ARGSUSED*/
+debug_baseclass
+debug_make_baseclass (handle, type, bitpos, virtual, visibility)
+ PTR handle;
+ debug_type type;
+ bfd_vma bitpos;
+ boolean virtual;
+ enum debug_visibility visibility;
+{
+ struct debug_baseclass *b;
+
+ b = (struct debug_baseclass *) xmalloc (sizeof *b);
+ memset (b, 0, sizeof *b);
+
+ b->type = type;
+ b->bitpos = bitpos;
+ b->virtual = virtual;
+ b->visibility = visibility;
+
+ return b;
+}
+
+/* Make a field for a struct. The second argument is the name. The
+ third argument is the type of the field. The fourth argument is
+ the bit position of the field. The fifth argument is the size of
+ the field (it may be zero). The sixth argument is the visibility
+ of the field. */
+
+/*ARGSUSED*/
+debug_field
+debug_make_field (handle, name, type, bitpos, bitsize, visibility)
+ PTR handle;
+ const char *name;
+ debug_type type;
+ bfd_vma bitpos;
+ bfd_vma bitsize;
+ enum debug_visibility visibility;
+{
+ struct debug_field *f;
+
+ f = (struct debug_field *) xmalloc (sizeof *f);
+ memset (f, 0, sizeof *f);
+
+ f->name = name;
+ f->type = type;
+ f->static_member = false;
+ f->u.f.bitpos = bitpos;
+ f->u.f.bitsize = bitsize;
+ f->visibility = visibility;
+
+ return f;
+}
+
+/* Make a static member of an object. The second argument is the
+ name. The third argument is the type of the member. The fourth
+ argument is the physical name of the member (i.e., the name as a
+ global variable). The fifth argument is the visibility of the
+ member. */
+
+/*ARGSUSED*/
+debug_field
+debug_make_static_member (handle, name, type, physname, visibility)
+ PTR handle;
+ const char *name;
+ debug_type type;
+ const char *physname;
+ enum debug_visibility visibility;
+{
+ struct debug_field *f;
+
+ f = (struct debug_field *) xmalloc (sizeof *f);
+ memset (f, 0, sizeof *f);
+
+ f->name = name;
+ f->type = type;
+ f->static_member = true;
+ f->u.s.physname = physname;
+ f->visibility = visibility;
+
+ return f;
+}
+
+/* Make a method. The second argument is the name, and the third
+ argument is a NULL terminated array of method variants. */
+
+/*ARGSUSED*/
+debug_method
+debug_make_method (handle, name, variants)
+ PTR handle;
+ const char *name;
+ debug_method_variant *variants;
+{
+ struct debug_method *m;
+
+ m = (struct debug_method *) xmalloc (sizeof *m);
+ memset (m, 0, sizeof *m);
+
+ m->name = name;
+ m->variants = variants;
+
+ return m;
+}
+
+/* Make a method argument. The second argument is the real name of
+ the function. The third argument is the type of the function. The
+ fourth argument is the visibility. The fifth argument is whether
+ this is a const function. The sixth argument is whether this is a
+ volatile function. The seventh argument is the offset in the
+ virtual function table, if any. The eighth argument is the virtual
+ function context. FIXME: Are the const and volatile arguments
+ necessary? Could we just use debug_make_const_type? */
+
+/*ARGSUSED*/
+debug_method_variant
+debug_make_method_variant (handle, physname, type, visibility, constp,
+ volatilep, voffset, context)
+ PTR handle;
+ const char *physname;
+ debug_type type;
+ enum debug_visibility visibility;
+ boolean constp;
+ boolean volatilep;
+ bfd_vma voffset;
+ debug_type context;
+{
+ struct debug_method_variant *m;
+
+ m = (struct debug_method_variant *) xmalloc (sizeof *m);
+ memset (m, 0, sizeof *m);
+
+ m->physname = physname;
+ m->type = type;
+ m->visibility = visibility;
+ m->constp = constp;
+ m->volatilep = volatilep;
+ m->voffset = voffset;
+ m->context = context;
+
+ return m;
+}
+
+/* Make a static method argument. The arguments are the same as for
+ debug_make_method_variant, except that the last two are omitted
+ since a static method can not also be virtual. */
+
+debug_method_variant
+debug_make_static_method_variant (handle, physname, type, visibility,
+ constp, volatilep)
+ PTR handle;
+ const char *physname;
+ debug_type type;
+ enum debug_visibility visibility;
+ boolean constp;
+ boolean volatilep;
+{
+ struct debug_method_variant *m;
+
+ m = (struct debug_method_variant *) xmalloc (sizeof *m);
+ memset (m, 0, sizeof *m);
+
+ m->physname = physname;
+ m->type = type;
+ m->visibility = visibility;
+ m->constp = constp;
+ m->volatilep = volatilep;
+ m->voffset = VOFFSET_STATIC_METHOD;
+
+ return m;
+}
+
+/* Name a type. */
+
+debug_type
+debug_name_type (handle, name, type)
+ PTR handle;
+ const char *name;
+ debug_type type;
+{
+ struct debug_handle *info = (struct debug_handle *) handle;
+ struct debug_type *t;
+ struct debug_named_type *n;
+ struct debug_name *nm;
+
+ if (name == NULL || type == NULL)
+ return DEBUG_TYPE_NULL;
+
+ if (info->current_unit == NULL
+ || info->current_file == NULL)
+ {
+ debug_error (_("debug_name_type: no current file"));
+ return DEBUG_TYPE_NULL;
+ }
+
+ t = debug_make_type (info, DEBUG_KIND_NAMED, 0);
+ if (t == NULL)
+ return DEBUG_TYPE_NULL;
+
+ n = (struct debug_named_type *) xmalloc (sizeof *n);
+ memset (n, 0, sizeof *n);
+
+ n->type = type;
+
+ t->u.knamed = n;
+
+ /* We always add the name to the global namespace. This is probably
+ wrong in some cases, but it seems to be right for stabs. FIXME. */
+
+ nm = debug_add_to_namespace (info, &info->current_file->globals, name,
+ DEBUG_OBJECT_TYPE, DEBUG_LINKAGE_NONE);
+ if (nm == NULL)
+ return false;
+
+ nm->u.type = t;
+
+ n->name = nm;
+
+ return t;
+}
+
+/* Tag a type. */
+
+debug_type
+debug_tag_type (handle, name, type)
+ PTR handle;
+ const char *name;
+ debug_type type;
+{
+ struct debug_handle *info = (struct debug_handle *) handle;
+ struct debug_type *t;
+ struct debug_named_type *n;
+ struct debug_name *nm;
+
+ if (name == NULL || type == NULL)
+ return DEBUG_TYPE_NULL;
+
+ if (info->current_file == NULL)
+ {
+ debug_error (_("debug_tag_type: no current file"));
+ return DEBUG_TYPE_NULL;
+ }
+
+ if (type->kind == DEBUG_KIND_TAGGED)
+ {
+ if (strcmp (type->u.knamed->name->name, name) == 0)
+ return type;
+ debug_error (_("debug_tag_type: extra tag attempted"));
+ return DEBUG_TYPE_NULL;
+ }
+
+ t = debug_make_type (info, DEBUG_KIND_TAGGED, 0);
+ if (t == NULL)
+ return DEBUG_TYPE_NULL;
+
+ n = (struct debug_named_type *) xmalloc (sizeof *n);
+ memset (n, 0, sizeof *n);
+
+ n->type = type;
+
+ t->u.knamed = n;
+
+ /* We keep a global namespace of tags for each compilation unit. I
+ don't know if that is the right thing to do. */
+
+ nm = debug_add_to_namespace (info, &info->current_file->globals, name,
+ DEBUG_OBJECT_TAG, DEBUG_LINKAGE_NONE);
+ if (nm == NULL)
+ return false;
+
+ nm->u.tag = t;
+
+ n->name = nm;
+
+ return t;
+}
+
+/* Record the size of a given type. */
+
+/*ARGSUSED*/
+boolean
+debug_record_type_size (handle, type, size)
+ PTR handle;
+ debug_type type;
+ unsigned int size;
+{
+ if (type->size != 0 && type->size != size)
+ fprintf (stderr, _("Warning: changing type size from %d to %d\n"),
+ type->size, size);
+
+ type->size = size;
+
+ return true;
+}
+
+/* Find a named type. */
+
+debug_type
+debug_find_named_type (handle, name)
+ PTR handle;
+ const char *name;
+{
+ struct debug_handle *info = (struct debug_handle *) handle;
+ struct debug_block *b;
+ struct debug_file *f;
+
+ /* We only search the current compilation unit. I don't know if
+ this is right or not. */
+
+ if (info->current_unit == NULL)
+ {
+ debug_error (_("debug_find_named_type: no current compilation unit"));
+ return DEBUG_TYPE_NULL;
+ }
+
+ for (b = info->current_block; b != NULL; b = b->parent)
+ {
+ if (b->locals != NULL)
+ {
+ struct debug_name *n;
+
+ for (n = b->locals->list; n != NULL; n = n->next)
+ {
+ if (n->kind == DEBUG_OBJECT_TYPE
+ && n->name[0] == name[0]
+ && strcmp (n->name, name) == 0)
+ return n->u.type;
+ }
+ }
+ }
+
+ for (f = info->current_unit->files; f != NULL; f = f->next)
+ {
+ if (f->globals != NULL)
+ {
+ struct debug_name *n;
+
+ for (n = f->globals->list; n != NULL; n = n->next)
+ {
+ if (n->kind == DEBUG_OBJECT_TYPE
+ && n->name[0] == name[0]
+ && strcmp (n->name, name) == 0)
+ return n->u.type;
+ }
+ }
+ }
+
+ return DEBUG_TYPE_NULL;
+}
+
+/* Find a tagged type. */
+
+debug_type
+debug_find_tagged_type (handle, name, kind)
+ PTR handle;
+ const char *name;
+ enum debug_type_kind kind;
+{
+ struct debug_handle *info = (struct debug_handle *) handle;
+ struct debug_unit *u;
+
+ /* We search the globals of all the compilation units. I don't know
+ if this is correct or not. It would be easy to change. */
+
+ for (u = info->units; u != NULL; u = u->next)
+ {
+ struct debug_file *f;
+
+ for (f = u->files; f != NULL; f = f->next)
+ {
+ struct debug_name *n;
+
+ if (f->globals != NULL)
+ {
+ for (n = f->globals->list; n != NULL; n = n->next)
+ {
+ if (n->kind == DEBUG_OBJECT_TAG
+ && (kind == DEBUG_KIND_ILLEGAL
+ || n->u.tag->kind == kind)
+ && n->name[0] == name[0]
+ && strcmp (n->name, name) == 0)
+ return n->u.tag;
+ }
+ }
+ }
+ }
+
+ return DEBUG_TYPE_NULL;
+}
+
+/* Get a base type. We build a linked list on the stack to avoid
+ crashing if the type is defined circularly. */
+
+static struct debug_type *
+debug_get_real_type (handle, type, list)
+ PTR handle;
+ debug_type type;
+ struct debug_type_real_list *list;
+{
+ struct debug_type_real_list *l;
+ struct debug_type_real_list rl;
+
+ switch (type->kind)
+ {
+ default:
+ return type;
+
+ case DEBUG_KIND_INDIRECT:
+ case DEBUG_KIND_NAMED:
+ case DEBUG_KIND_TAGGED:
+ break;
+ }
+
+ for (l = list; l != NULL; l = l->next)
+ {
+ if (l->t == type)
+ {
+ fprintf (stderr,
+ _("debug_get_real_type: circular debug information for %s\n"),
+ debug_get_type_name (handle, type));
+ return NULL;
+ }
+ }
+
+ rl.next = list;
+ rl.t = type;
+
+ switch (type->kind)
+ {
+ /* The default case is just here to avoid warnings. */
+ default:
+ case DEBUG_KIND_INDIRECT:
+ if (*type->u.kindirect->slot != NULL)
+ return debug_get_real_type (handle, *type->u.kindirect->slot, &rl);
+ return type;
+ case DEBUG_KIND_NAMED:
+ case DEBUG_KIND_TAGGED:
+ return debug_get_real_type (handle, type->u.knamed->type, &rl);
+ }
+ /*NOTREACHED*/
+}
+
+/* Get the kind of a type. */
+
+enum debug_type_kind
+debug_get_type_kind (handle, type)
+ PTR handle;
+ debug_type type;
+{
+ if (type == NULL)
+ return DEBUG_KIND_ILLEGAL;
+ type = debug_get_real_type (handle, type, NULL);
+ if (type == NULL)
+ return DEBUG_KIND_ILLEGAL;
+ return type->kind;
+}
+
+/* Get the name of a type. */
+
+const char *
+debug_get_type_name (handle, type)
+ PTR handle;
+ debug_type type;
+{
+ if (type->kind == DEBUG_KIND_INDIRECT)
+ {
+ if (*type->u.kindirect->slot != NULL)
+ return debug_get_type_name (handle, *type->u.kindirect->slot);
+ return type->u.kindirect->tag;
+ }
+ if (type->kind == DEBUG_KIND_NAMED
+ || type->kind == DEBUG_KIND_TAGGED)
+ return type->u.knamed->name->name;
+ return NULL;
+}
+
+/* Get the size of a type. */
+
+bfd_vma
+debug_get_type_size (handle, type)
+ PTR handle;
+ debug_type type;
+{
+ if (type == NULL)
+ return 0;
+
+ /* We don't call debug_get_real_type, because somebody might have
+ called debug_record_type_size on a named or indirect type. */
+
+ if (type->size != 0)
+ return type->size;
+
+ switch (type->kind)
+ {
+ default:
+ return 0;
+ case DEBUG_KIND_INDIRECT:
+ if (*type->u.kindirect->slot != NULL)
+ return debug_get_type_size (handle, *type->u.kindirect->slot);
+ return 0;
+ case DEBUG_KIND_NAMED:
+ case DEBUG_KIND_TAGGED:
+ return debug_get_type_size (handle, type->u.knamed->type);
+ }
+ /*NOTREACHED*/
+}
+
+/* Get the return type of a function or method type. */
+
+debug_type
+debug_get_return_type (handle, type)
+ PTR handle;
+ debug_type type;
+{
+ if (type == NULL)
+ return DEBUG_TYPE_NULL;
+ type = debug_get_real_type (handle, type, NULL);
+ if (type == NULL)
+ return DEBUG_TYPE_NULL;
+ switch (type->kind)
+ {
+ default:
+ return DEBUG_TYPE_NULL;
+ case DEBUG_KIND_FUNCTION:
+ return type->u.kfunction->return_type;
+ case DEBUG_KIND_METHOD:
+ return type->u.kmethod->return_type;
+ }
+ /*NOTREACHED*/
+}
+
+/* Get the parameter types of a function or method type (except that
+ we don't currently store the parameter types of a function). */
+
+const debug_type *
+debug_get_parameter_types (handle, type, pvarargs)
+ PTR handle;
+ debug_type type;
+ boolean *pvarargs;
+{
+ if (type == NULL)
+ return NULL;
+ type = debug_get_real_type (handle, type, NULL);
+ if (type == NULL)
+ return NULL;
+ switch (type->kind)
+ {
+ default:
+ return NULL;
+ case DEBUG_KIND_FUNCTION:
+ *pvarargs = type->u.kfunction->varargs;
+ return type->u.kfunction->arg_types;
+ case DEBUG_KIND_METHOD:
+ *pvarargs = type->u.kmethod->varargs;
+ return type->u.kmethod->arg_types;
+ }
+ /*NOTREACHED*/
+}
+
+/* Get the target type of a type. */
+
+debug_type
+debug_get_target_type (handle, type)
+ PTR handle;
+ debug_type type;
+{
+ if (type == NULL)
+ return NULL;
+ type = debug_get_real_type (handle, type, NULL);
+ if (type == NULL)
+ return NULL;
+ switch (type->kind)
+ {
+ default:
+ return NULL;
+ case DEBUG_KIND_POINTER:
+ return type->u.kpointer;
+ case DEBUG_KIND_REFERENCE:
+ return type->u.kreference;
+ case DEBUG_KIND_CONST:
+ return type->u.kconst;
+ case DEBUG_KIND_VOLATILE:
+ return type->u.kvolatile;
+ }
+ /*NOTREACHED*/
+}
+
+/* Get the NULL terminated array of fields for a struct, union, or
+ class. */
+
+const debug_field *
+debug_get_fields (handle, type)
+ PTR handle;
+ debug_type type;
+{
+ if (type == NULL)
+ return NULL;
+ type = debug_get_real_type (handle, type, NULL);
+ if (type == NULL)
+ return NULL;
+ switch (type->kind)
+ {
+ default:
+ return NULL;
+ case DEBUG_KIND_STRUCT:
+ case DEBUG_KIND_UNION:
+ case DEBUG_KIND_CLASS:
+ case DEBUG_KIND_UNION_CLASS:
+ return type->u.kclass->fields;
+ }
+ /*NOTREACHED*/
+}
+
+/* Get the type of a field. */
+
+/*ARGSUSED*/
+debug_type
+debug_get_field_type (handle, field)
+ PTR handle;
+ debug_field field;
+{
+ if (field == NULL)
+ return NULL;
+ return field->type;
+}
+
+/* Get the name of a field. */
+
+/*ARGSUSED*/
+const char *
+debug_get_field_name (handle, field)
+ PTR handle;
+ debug_field field;
+{
+ if (field == NULL)
+ return NULL;
+ return field->name;
+}
+
+/* Get the bit position of a field. */
+
+/*ARGSUSED*/
+bfd_vma
+debug_get_field_bitpos (handle, field)
+ PTR handle;
+ debug_field field;
+{
+ if (field == NULL || field->static_member)
+ return (bfd_vma) -1;
+ return field->u.f.bitpos;
+}
+
+/* Get the bit size of a field. */
+
+/*ARGSUSED*/
+bfd_vma
+debug_get_field_bitsize (handle, field)
+ PTR handle;
+ debug_field field;
+{
+ if (field == NULL || field->static_member)
+ return (bfd_vma) -1;
+ return field->u.f.bitsize;
+}
+
+/* Get the visibility of a field. */
+
+/*ARGSUSED*/
+enum debug_visibility
+debug_get_field_visibility (handle, field)
+ PTR handle;
+ debug_field field;
+{
+ if (field == NULL)
+ return DEBUG_VISIBILITY_IGNORE;
+ return field->visibility;
+}
+
+/* Get the physical name of a field. */
+
+const char *
+debug_get_field_physname (handle, field)
+ PTR handle;
+ debug_field field;
+{
+ if (field == NULL || ! field->static_member)
+ return NULL;
+ return field->u.s.physname;
+}
+
+/* Write out the debugging information. This is given a handle to
+ debugging information, and a set of function pointers to call. */
+
+boolean
+debug_write (handle, fns, fhandle)
+ PTR handle;
+ const struct debug_write_fns *fns;
+ PTR fhandle;
+{
+ struct debug_handle *info = (struct debug_handle *) handle;
+ struct debug_unit *u;
+
+ /* We use a mark to tell whether we have already written out a
+ particular name. We use an integer, so that we don't have to
+ clear the mark fields if we happen to write out the same
+ information more than once. */
+ ++info->mark;
+
+ /* The base_id field holds an ID value which will never be used, so
+ that we can tell whether we have assigned an ID during this call
+ to debug_write. */
+ info->base_id = info->class_id;
+
+ /* We keep a linked list of classes for which was have assigned ID's
+ during this call to debug_write. */
+ info->id_list = NULL;
+
+ for (u = info->units; u != NULL; u = u->next)
+ {
+ struct debug_file *f;
+ boolean first_file;
+
+ info->current_write_lineno = u->linenos;
+ info->current_write_lineno_index = 0;
+
+ if (! (*fns->start_compilation_unit) (fhandle, u->files->filename))
+ return false;
+
+ first_file = true;
+ for (f = u->files; f != NULL; f = f->next)
+ {
+ struct debug_name *n;
+
+ if (first_file)
+ first_file = false;
+ else
+ {
+ if (! (*fns->start_source) (fhandle, f->filename))
+ return false;
+ }
+
+ if (f->globals != NULL)
+ {
+ for (n = f->globals->list; n != NULL; n = n->next)
+ {
+ if (! debug_write_name (info, fns, fhandle, n))
+ return false;
+ }
+ }
+ }
+
+ /* Output any line number information which hasn't already been
+ handled. */
+ if (! debug_write_linenos (info, fns, fhandle, (bfd_vma) -1))
+ return false;
+ }
+
+ return true;
+}
+
+/* Write out an element in a namespace. */
+
+static boolean
+debug_write_name (info, fns, fhandle, n)
+ struct debug_handle *info;
+ const struct debug_write_fns *fns;
+ PTR fhandle;
+ struct debug_name *n;
+{
+ switch (n->kind)
+ {
+ case DEBUG_OBJECT_TYPE:
+ if (! debug_write_type (info, fns, fhandle, n->u.type, n)
+ || ! (*fns->typdef) (fhandle, n->name))
+ return false;
+ return true;
+ case DEBUG_OBJECT_TAG:
+ if (! debug_write_type (info, fns, fhandle, n->u.tag, n))
+ return false;
+ return (*fns->tag) (fhandle, n->name);
+ case DEBUG_OBJECT_VARIABLE:
+ if (! debug_write_type (info, fns, fhandle, n->u.variable->type,
+ (struct debug_name *) NULL))
+ return false;
+ return (*fns->variable) (fhandle, n->name, n->u.variable->kind,
+ n->u.variable->val);
+ case DEBUG_OBJECT_FUNCTION:
+ return debug_write_function (info, fns, fhandle, n->name,
+ n->linkage, n->u.function);
+ case DEBUG_OBJECT_INT_CONSTANT:
+ return (*fns->int_constant) (fhandle, n->name, n->u.int_constant);
+ case DEBUG_OBJECT_FLOAT_CONSTANT:
+ return (*fns->float_constant) (fhandle, n->name, n->u.float_constant);
+ case DEBUG_OBJECT_TYPED_CONSTANT:
+ if (! debug_write_type (info, fns, fhandle, n->u.typed_constant->type,
+ (struct debug_name *) NULL))
+ return false;
+ return (*fns->typed_constant) (fhandle, n->name,
+ n->u.typed_constant->val);
+ default:
+ abort ();
+ return false;
+ }
+ /*NOTREACHED*/
+}
+
+/* Write out a type. If the type is DEBUG_KIND_NAMED or
+ DEBUG_KIND_TAGGED, then the name argument is the name for which we
+ are about to call typedef or tag. If the type is anything else,
+ then the name argument is a tag from a DEBUG_KIND_TAGGED type which
+ points to this one. */
+
+static boolean
+debug_write_type (info, fns, fhandle, type, name)
+ struct debug_handle *info;
+ const struct debug_write_fns *fns;
+ PTR fhandle;
+ struct debug_type *type;
+ struct debug_name *name;
+{
+ unsigned int i;
+ int is;
+ const char *tag;
+
+ /* If we have a name for this type, just output it. We only output
+ typedef names after they have been defined. We output type tags
+ whenever we are not actually defining them. */
+ if ((type->kind == DEBUG_KIND_NAMED
+ || type->kind == DEBUG_KIND_TAGGED)
+ && (type->u.knamed->name->mark == info->mark
+ || (type->kind == DEBUG_KIND_TAGGED
+ && type->u.knamed->name != name)))
+ {
+ if (type->kind == DEBUG_KIND_NAMED)
+ return (*fns->typedef_type) (fhandle, type->u.knamed->name->name);
+ else
+ {
+ struct debug_type *real;
+ unsigned int id;
+
+ real = debug_get_real_type ((PTR) info, type, NULL);
+ if (real == NULL)
+ return (*fns->empty_type) (fhandle);
+ id = 0;
+ if ((real->kind == DEBUG_KIND_STRUCT
+ || real->kind == DEBUG_KIND_UNION
+ || real->kind == DEBUG_KIND_CLASS
+ || real->kind == DEBUG_KIND_UNION_CLASS)
+ && real->u.kclass != NULL)
+ {
+ if (real->u.kclass->id <= info->base_id)
+ {
+ if (! debug_set_class_id (info,
+ type->u.knamed->name->name,
+ real))
+ return false;
+ }
+ id = real->u.kclass->id;
+ }
+
+ return (*fns->tag_type) (fhandle, type->u.knamed->name->name, id,
+ real->kind);
+ }
+ }
+
+ /* Mark the name after we have already looked for a known name, so
+ that we don't just define a type in terms of itself. We need to
+ mark the name here so that a struct containing a pointer to
+ itself will work. */
+ if (name != NULL)
+ name->mark = info->mark;
+
+ tag = NULL;
+ if (name != NULL
+ && type->kind != DEBUG_KIND_NAMED
+ && type->kind != DEBUG_KIND_TAGGED)
+ {
+ assert (name->kind == DEBUG_OBJECT_TAG);
+ tag = name->name;
+ }
+
+ switch (type->kind)
+ {
+ case DEBUG_KIND_ILLEGAL:
+ debug_error (_("debug_write_type: illegal type encountered"));
+ return false;
+ case DEBUG_KIND_INDIRECT:
+ if (*type->u.kindirect->slot == DEBUG_TYPE_NULL)
+ return (*fns->empty_type) (fhandle);
+ return debug_write_type (info, fns, fhandle, *type->u.kindirect->slot,
+ name);
+ case DEBUG_KIND_VOID:
+ return (*fns->void_type) (fhandle);
+ case DEBUG_KIND_INT:
+ return (*fns->int_type) (fhandle, type->size, type->u.kint);
+ case DEBUG_KIND_FLOAT:
+ return (*fns->float_type) (fhandle, type->size);
+ case DEBUG_KIND_COMPLEX:
+ return (*fns->complex_type) (fhandle, type->size);
+ case DEBUG_KIND_BOOL:
+ return (*fns->bool_type) (fhandle, type->size);
+ case DEBUG_KIND_STRUCT:
+ case DEBUG_KIND_UNION:
+ if (type->u.kclass != NULL)
+ {
+ if (type->u.kclass->id <= info->base_id)
+ {
+ if (! debug_set_class_id (info, tag, type))
+ return false;
+ }
+
+ if (info->mark == type->u.kclass->mark)
+ {
+ /* We are currently outputting this struct, or we have
+ already output it. I don't know if this can happen,
+ but it can happen for a class. */
+ assert (type->u.kclass->id > info->base_id);
+ return (*fns->tag_type) (fhandle, tag, type->u.kclass->id,
+ type->kind);
+ }
+ type->u.kclass->mark = info->mark;
+ }
+
+ if (! (*fns->start_struct_type) (fhandle, tag,
+ (type->u.kclass != NULL
+ ? type->u.kclass->id
+ : 0),
+ type->kind == DEBUG_KIND_STRUCT,
+ type->size))
+ return false;
+ if (type->u.kclass != NULL
+ && type->u.kclass->fields != NULL)
+ {
+ for (i = 0; type->u.kclass->fields[i] != NULL; i++)
+ {
+ struct debug_field *f;
+
+ f = type->u.kclass->fields[i];
+ if (! debug_write_type (info, fns, fhandle, f->type,
+ (struct debug_name *) NULL)
+ || ! (*fns->struct_field) (fhandle, f->name, f->u.f.bitpos,
+ f->u.f.bitsize, f->visibility))
+ return false;
+ }
+ }
+ return (*fns->end_struct_type) (fhandle);
+ case DEBUG_KIND_CLASS:
+ case DEBUG_KIND_UNION_CLASS:
+ return debug_write_class_type (info, fns, fhandle, type, tag);
+ case DEBUG_KIND_ENUM:
+ if (type->u.kenum == NULL)
+ return (*fns->enum_type) (fhandle, tag, (const char **) NULL,
+ (bfd_signed_vma *) NULL);
+ return (*fns->enum_type) (fhandle, tag, type->u.kenum->names,
+ type->u.kenum->values);
+ case DEBUG_KIND_POINTER:
+ if (! debug_write_type (info, fns, fhandle, type->u.kpointer,
+ (struct debug_name *) NULL))
+ return false;
+ return (*fns->pointer_type) (fhandle);
+ case DEBUG_KIND_FUNCTION:
+ if (! debug_write_type (info, fns, fhandle,
+ type->u.kfunction->return_type,
+ (struct debug_name *) NULL))
+ return false;
+ if (type->u.kfunction->arg_types == NULL)
+ is = -1;
+ else
+ {
+ for (is = 0; type->u.kfunction->arg_types[is] != NULL; is++)
+ if (! debug_write_type (info, fns, fhandle,
+ type->u.kfunction->arg_types[is],
+ (struct debug_name *) NULL))
+ return false;
+ }
+ return (*fns->function_type) (fhandle, is,
+ type->u.kfunction->varargs);
+ case DEBUG_KIND_REFERENCE:
+ if (! debug_write_type (info, fns, fhandle, type->u.kreference,
+ (struct debug_name *) NULL))
+ return false;
+ return (*fns->reference_type) (fhandle);
+ case DEBUG_KIND_RANGE:
+ if (! debug_write_type (info, fns, fhandle, type->u.krange->type,
+ (struct debug_name *) NULL))
+ return false;
+ return (*fns->range_type) (fhandle, type->u.krange->lower,
+ type->u.krange->upper);
+ case DEBUG_KIND_ARRAY:
+ if (! debug_write_type (info, fns, fhandle, type->u.karray->element_type,
+ (struct debug_name *) NULL)
+ || ! debug_write_type (info, fns, fhandle,
+ type->u.karray->range_type,
+ (struct debug_name *) NULL))
+ return false;
+ return (*fns->array_type) (fhandle, type->u.karray->lower,
+ type->u.karray->upper,
+ type->u.karray->stringp);
+ case DEBUG_KIND_SET:
+ if (! debug_write_type (info, fns, fhandle, type->u.kset->type,
+ (struct debug_name *) NULL))
+ return false;
+ return (*fns->set_type) (fhandle, type->u.kset->bitstringp);
+ case DEBUG_KIND_OFFSET:
+ if (! debug_write_type (info, fns, fhandle, type->u.koffset->base_type,
+ (struct debug_name *) NULL)
+ || ! debug_write_type (info, fns, fhandle,
+ type->u.koffset->target_type,
+ (struct debug_name *) NULL))
+ return false;
+ return (*fns->offset_type) (fhandle);
+ case DEBUG_KIND_METHOD:
+ if (! debug_write_type (info, fns, fhandle,
+ type->u.kmethod->return_type,
+ (struct debug_name *) NULL))
+ return false;
+ if (type->u.kmethod->arg_types == NULL)
+ is = -1;
+ else
+ {
+ for (is = 0; type->u.kmethod->arg_types[is] != NULL; is++)
+ if (! debug_write_type (info, fns, fhandle,
+ type->u.kmethod->arg_types[is],
+ (struct debug_name *) NULL))
+ return false;
+ }
+ if (type->u.kmethod->domain_type != NULL)
+ {
+ if (! debug_write_type (info, fns, fhandle,
+ type->u.kmethod->domain_type,
+ (struct debug_name *) NULL))
+ return false;
+ }
+ return (*fns->method_type) (fhandle,
+ type->u.kmethod->domain_type != NULL,
+ is,
+ type->u.kmethod->varargs);
+ case DEBUG_KIND_CONST:
+ if (! debug_write_type (info, fns, fhandle, type->u.kconst,
+ (struct debug_name *) NULL))
+ return false;
+ return (*fns->const_type) (fhandle);
+ case DEBUG_KIND_VOLATILE:
+ if (! debug_write_type (info, fns, fhandle, type->u.kvolatile,
+ (struct debug_name *) NULL))
+ return false;
+ return (*fns->volatile_type) (fhandle);
+ case DEBUG_KIND_NAMED:
+ return debug_write_type (info, fns, fhandle, type->u.knamed->type,
+ (struct debug_name *) NULL);
+ case DEBUG_KIND_TAGGED:
+ return debug_write_type (info, fns, fhandle, type->u.knamed->type,
+ type->u.knamed->name);
+ default:
+ abort ();
+ return false;
+ }
+}
+
+/* Write out a class type. */
+
+static boolean
+debug_write_class_type (info, fns, fhandle, type, tag)
+ struct debug_handle *info;
+ const struct debug_write_fns *fns;
+ PTR fhandle;
+ struct debug_type *type;
+ const char *tag;
+{
+ unsigned int i;
+ unsigned int id;
+ struct debug_type *vptrbase;
+
+ if (type->u.kclass == NULL)
+ {
+ id = 0;
+ vptrbase = NULL;
+ }
+ else
+ {
+ if (type->u.kclass->id <= info->base_id)
+ {
+ if (! debug_set_class_id (info, tag, type))
+ return false;
+ }
+
+ if (info->mark == type->u.kclass->mark)
+ {
+ /* We are currently outputting this class, or we have
+ already output it. This can happen when there are
+ methods for an anonymous class. */
+ assert (type->u.kclass->id > info->base_id);
+ return (*fns->tag_type) (fhandle, tag, type->u.kclass->id,
+ type->kind);
+ }
+ type->u.kclass->mark = info->mark;
+ id = type->u.kclass->id;
+
+ vptrbase = type->u.kclass->vptrbase;
+ if (vptrbase != NULL && vptrbase != type)
+ {
+ if (! debug_write_type (info, fns, fhandle, vptrbase,
+ (struct debug_name *) NULL))
+ return false;
+ }
+ }
+
+ if (! (*fns->start_class_type) (fhandle, tag, id,
+ type->kind == DEBUG_KIND_CLASS,
+ type->size,
+ vptrbase != NULL,
+ vptrbase == type))
+ return false;
+
+ if (type->u.kclass != NULL)
+ {
+ if (type->u.kclass->fields != NULL)
+ {
+ for (i = 0; type->u.kclass->fields[i] != NULL; i++)
+ {
+ struct debug_field *f;
+
+ f = type->u.kclass->fields[i];
+ if (! debug_write_type (info, fns, fhandle, f->type,
+ (struct debug_name *) NULL))
+ return false;
+ if (f->static_member)
+ {
+ if (! (*fns->class_static_member) (fhandle, f->name,
+ f->u.s.physname,
+ f->visibility))
+ return false;
+ }
+ else
+ {
+ if (! (*fns->struct_field) (fhandle, f->name, f->u.f.bitpos,
+ f->u.f.bitsize, f->visibility))
+ return false;
+ }
+ }
+ }
+
+ if (type->u.kclass->baseclasses != NULL)
+ {
+ for (i = 0; type->u.kclass->baseclasses[i] != NULL; i++)
+ {
+ struct debug_baseclass *b;
+
+ b = type->u.kclass->baseclasses[i];
+ if (! debug_write_type (info, fns, fhandle, b->type,
+ (struct debug_name *) NULL))
+ return false;
+ if (! (*fns->class_baseclass) (fhandle, b->bitpos, b->virtual,
+ b->visibility))
+ return false;
+ }
+ }
+
+ if (type->u.kclass->methods != NULL)
+ {
+ for (i = 0; type->u.kclass->methods[i] != NULL; i++)
+ {
+ struct debug_method *m;
+ unsigned int j;
+
+ m = type->u.kclass->methods[i];
+ if (! (*fns->class_start_method) (fhandle, m->name))
+ return false;
+ for (j = 0; m->variants[j] != NULL; j++)
+ {
+ struct debug_method_variant *v;
+
+ v = m->variants[j];
+ if (v->context != NULL)
+ {
+ if (! debug_write_type (info, fns, fhandle, v->context,
+ (struct debug_name *) NULL))
+ return false;
+ }
+ if (! debug_write_type (info, fns, fhandle, v->type,
+ (struct debug_name *) NULL))
+ return false;
+ if (v->voffset != VOFFSET_STATIC_METHOD)
+ {
+ if (! (*fns->class_method_variant) (fhandle, v->physname,
+ v->visibility,
+ v->constp,
+ v->volatilep,
+ v->voffset,
+ v->context != NULL))
+ return false;
+ }
+ else
+ {
+ if (! (*fns->class_static_method_variant) (fhandle,
+ v->physname,
+ v->visibility,
+ v->constp,
+ v->volatilep))
+ return false;
+ }
+ }
+ if (! (*fns->class_end_method) (fhandle))
+ return false;
+ }
+ }
+ }
+
+ return (*fns->end_class_type) (fhandle);
+}
+
+/* Write out information for a function. */
+
+static boolean
+debug_write_function (info, fns, fhandle, name, linkage, function)
+ struct debug_handle *info;
+ const struct debug_write_fns *fns;
+ PTR fhandle;
+ const char *name;
+ enum debug_object_linkage linkage;
+ struct debug_function *function;
+{
+ struct debug_parameter *p;
+ struct debug_block *b;
+
+ if (! debug_write_linenos (info, fns, fhandle, function->blocks->start))
+ return false;
+
+ if (! debug_write_type (info, fns, fhandle, function->return_type,
+ (struct debug_name *) NULL))
+ return false;
+
+ if (! (*fns->start_function) (fhandle, name,
+ linkage == DEBUG_LINKAGE_GLOBAL))
+ return false;
+
+ for (p = function->parameters; p != NULL; p = p->next)
+ {
+ if (! debug_write_type (info, fns, fhandle, p->type,
+ (struct debug_name *) NULL)
+ || ! (*fns->function_parameter) (fhandle, p->name, p->kind, p->val))
+ return false;
+ }
+
+ for (b = function->blocks; b != NULL; b = b->next)
+ {
+ if (! debug_write_block (info, fns, fhandle, b))
+ return false;
+ }
+
+ return (*fns->end_function) (fhandle);
+}
+
+/* Write out information for a block. */
+
+static boolean
+debug_write_block (info, fns, fhandle, block)
+ struct debug_handle *info;
+ const struct debug_write_fns *fns;
+ PTR fhandle;
+ struct debug_block *block;
+{
+ struct debug_name *n;
+ struct debug_block *b;
+
+ if (! debug_write_linenos (info, fns, fhandle, block->start))
+ return false;
+
+ /* I can't see any point to writing out a block with no local
+ variables, so we don't bother, except for the top level block. */
+ if (block->locals != NULL || block->parent == NULL)
+ {
+ if (! (*fns->start_block) (fhandle, block->start))
+ return false;
+ }
+
+ if (block->locals != NULL)
+ {
+ for (n = block->locals->list; n != NULL; n = n->next)
+ {
+ if (! debug_write_name (info, fns, fhandle, n))
+ return false;
+ }
+ }
+
+ for (b = block->children; b != NULL; b = b->next)
+ {
+ if (! debug_write_block (info, fns, fhandle, b))
+ return false;
+ }
+
+ if (! debug_write_linenos (info, fns, fhandle, block->end))
+ return false;
+
+ if (block->locals != NULL || block->parent == NULL)
+ {
+ if (! (*fns->end_block) (fhandle, block->end))
+ return false;
+ }
+
+ return true;
+}
+
+/* Write out line number information up to ADDRESS. */
+
+static boolean
+debug_write_linenos (info, fns, fhandle, address)
+ struct debug_handle *info;
+ const struct debug_write_fns *fns;
+ PTR fhandle;
+ bfd_vma address;
+{
+ while (info->current_write_lineno != NULL)
+ {
+ struct debug_lineno *l;
+
+ l = info->current_write_lineno;
+
+ while (info->current_write_lineno_index < DEBUG_LINENO_COUNT)
+ {
+ if (l->linenos[info->current_write_lineno_index]
+ == (unsigned long) -1)
+ break;
+
+ if (l->addrs[info->current_write_lineno_index] >= address)
+ return true;
+
+ if (! (*fns->lineno) (fhandle, l->file->filename,
+ l->linenos[info->current_write_lineno_index],
+ l->addrs[info->current_write_lineno_index]))
+ return false;
+
+ ++info->current_write_lineno_index;
+ }
+
+ info->current_write_lineno = l->next;
+ info->current_write_lineno_index = 0;
+ }
+
+ return true;
+}
+
+/* Get the ID number for a class. If during the same call to
+ debug_write we find a struct with the same definition with the same
+ name, we use the same ID. This type of things happens because the
+ same struct will be defined by multiple compilation units. */
+
+static boolean
+debug_set_class_id (info, tag, type)
+ struct debug_handle *info;
+ const char *tag;
+ struct debug_type *type;
+{
+ struct debug_class_type *c;
+ struct debug_class_id *l;
+
+ assert (type->kind == DEBUG_KIND_STRUCT
+ || type->kind == DEBUG_KIND_UNION
+ || type->kind == DEBUG_KIND_CLASS
+ || type->kind == DEBUG_KIND_UNION_CLASS);
+
+ c = type->u.kclass;
+
+ if (c->id > info->base_id)
+ return true;
+
+ for (l = info->id_list; l != NULL; l = l->next)
+ {
+ if (l->type->kind != type->kind)
+ continue;
+
+ if (tag == NULL)
+ {
+ if (l->tag != NULL)
+ continue;
+ }
+ else
+ {
+ if (l->tag == NULL
+ || l->tag[0] != tag[0]
+ || strcmp (l->tag, tag) != 0)
+ continue;
+ }
+
+ if (debug_type_samep (info, l->type, type))
+ {
+ c->id = l->type->u.kclass->id;
+ return true;
+ }
+ }
+
+ /* There are no identical types. Use a new ID, and add it to the
+ list. */
+ ++info->class_id;
+ c->id = info->class_id;
+
+ l = (struct debug_class_id *) xmalloc (sizeof *l);
+ memset (l, 0, sizeof *l);
+
+ l->type = type;
+ l->tag = tag;
+
+ l->next = info->id_list;
+ info->id_list = l;
+
+ return true;
+}
+
+/* See if two types are the same. At this point, we don't care about
+ tags and the like. */
+
+static boolean
+debug_type_samep (info, t1, t2)
+ struct debug_handle *info;
+ struct debug_type *t1;
+ struct debug_type *t2;
+{
+ struct debug_type_compare_list *l;
+ struct debug_type_compare_list top;
+ boolean ret;
+
+ if (t1 == NULL)
+ return t2 == NULL;
+ if (t2 == NULL)
+ return false;
+
+ while (t1->kind == DEBUG_KIND_INDIRECT)
+ {
+ t1 = *t1->u.kindirect->slot;
+ if (t1 == NULL)
+ return false;
+ }
+ while (t2->kind == DEBUG_KIND_INDIRECT)
+ {
+ t2 = *t2->u.kindirect->slot;
+ if (t2 == NULL)
+ return false;
+ }
+
+ if (t1 == t2)
+ return true;
+
+ /* As a special case, permit a typedef to match a tag, since C++
+ debugging output will sometimes add a typedef where C debugging
+ output will not. */
+ if (t1->kind == DEBUG_KIND_NAMED
+ && t2->kind == DEBUG_KIND_TAGGED)
+ return debug_type_samep (info, t1->u.knamed->type, t2);
+ else if (t1->kind == DEBUG_KIND_TAGGED
+ && t2->kind == DEBUG_KIND_NAMED)
+ return debug_type_samep (info, t1, t2->u.knamed->type);
+
+ if (t1->kind != t2->kind
+ || t1->size != t2->size)
+ return false;
+
+ /* Get rid of the trivial cases first. */
+ switch (t1->kind)
+ {
+ default:
+ break;
+ case DEBUG_KIND_VOID:
+ case DEBUG_KIND_FLOAT:
+ case DEBUG_KIND_COMPLEX:
+ case DEBUG_KIND_BOOL:
+ return true;
+ case DEBUG_KIND_INT:
+ return t1->u.kint == t2->u.kint;
+ }
+
+ /* We have to avoid an infinite recursion. We do this by keeping a
+ list of types which we are comparing. We just keep the list on
+ the stack. If we encounter a pair of types we are currently
+ comparing, we just assume that they are equal. */
+ for (l = info->compare_list; l != NULL; l = l->next)
+ {
+ if (l->t1 == t1 && l->t2 == t2)
+ return true;
+ }
+
+ top.t1 = t1;
+ top.t2 = t2;
+ top.next = info->compare_list;
+ info->compare_list = &top;
+
+ switch (t1->kind)
+ {
+ default:
+ abort ();
+ ret = false;
+ break;
+
+ case DEBUG_KIND_STRUCT:
+ case DEBUG_KIND_UNION:
+ case DEBUG_KIND_CLASS:
+ case DEBUG_KIND_UNION_CLASS:
+ if (t1->u.kclass == NULL)
+ ret = t2->u.kclass == NULL;
+ else if (t2->u.kclass == NULL)
+ ret = false;
+ else if (t1->u.kclass->id > info->base_id
+ && t1->u.kclass->id == t2->u.kclass->id)
+ ret = true;
+ else
+ ret = debug_class_type_samep (info, t1, t2);
+ break;
+
+ case DEBUG_KIND_ENUM:
+ if (t1->u.kenum == NULL)
+ ret = t2->u.kenum == NULL;
+ else if (t2->u.kenum == NULL)
+ ret = false;
+ else
+ {
+ const char **pn1, **pn2;
+ bfd_signed_vma *pv1, *pv2;
+
+ pn1 = t1->u.kenum->names;
+ pn2 = t2->u.kenum->names;
+ pv1 = t1->u.kenum->values;
+ pv2 = t2->u.kenum->values;
+ while (*pn1 != NULL && *pn2 != NULL)
+ {
+ if (**pn1 != **pn2
+ || *pv1 != *pv2
+ || strcmp (*pn1, *pn2) != 0)
+ break;
+ ++pn1;
+ ++pn2;
+ ++pv1;
+ ++pv2;
+ }
+ ret = *pn1 == NULL && *pn2 == NULL;
+ }
+ break;
+
+ case DEBUG_KIND_POINTER:
+ ret = debug_type_samep (info, t1->u.kpointer, t2->u.kpointer);
+ break;
+
+ case DEBUG_KIND_FUNCTION:
+ if (t1->u.kfunction->varargs != t2->u.kfunction->varargs
+ || ! debug_type_samep (info, t1->u.kfunction->return_type,
+ t2->u.kfunction->return_type)
+ || ((t1->u.kfunction->arg_types == NULL)
+ != (t2->u.kfunction->arg_types == NULL)))
+ ret = false;
+ else if (t1->u.kfunction->arg_types == NULL)
+ ret = true;
+ else
+ {
+ struct debug_type **a1, **a2;
+
+ a1 = t1->u.kfunction->arg_types;
+ a2 = t2->u.kfunction->arg_types;
+ while (*a1 != NULL && *a2 != NULL)
+ {
+ if (! debug_type_samep (info, *a1, *a2))
+ break;
+ ++a1;
+ ++a2;
+ }
+ ret = *a1 == NULL && *a2 == NULL;
+ }
+ break;
+
+ case DEBUG_KIND_REFERENCE:
+ ret = debug_type_samep (info, t1->u.kreference, t2->u.kreference);
+ break;
+
+ case DEBUG_KIND_RANGE:
+ ret = (t1->u.krange->lower == t2->u.krange->lower
+ && t1->u.krange->upper == t2->u.krange->upper
+ && debug_type_samep (info, t1->u.krange->type,
+ t2->u.krange->type));
+
+ case DEBUG_KIND_ARRAY:
+ ret = (t1->u.karray->lower == t2->u.karray->lower
+ && t1->u.karray->upper == t2->u.karray->upper
+ && t1->u.karray->stringp == t2->u.karray->stringp
+ && debug_type_samep (info, t1->u.karray->element_type,
+ t2->u.karray->element_type));
+ break;
+
+ case DEBUG_KIND_SET:
+ ret = (t1->u.kset->bitstringp == t2->u.kset->bitstringp
+ && debug_type_samep (info, t1->u.kset->type, t2->u.kset->type));
+ break;
+
+ case DEBUG_KIND_OFFSET:
+ ret = (debug_type_samep (info, t1->u.koffset->base_type,
+ t2->u.koffset->base_type)
+ && debug_type_samep (info, t1->u.koffset->target_type,
+ t2->u.koffset->target_type));
+ break;
+
+ case DEBUG_KIND_METHOD:
+ if (t1->u.kmethod->varargs != t2->u.kmethod->varargs
+ || ! debug_type_samep (info, t1->u.kmethod->return_type,
+ t2->u.kmethod->return_type)
+ || ! debug_type_samep (info, t1->u.kmethod->domain_type,
+ t2->u.kmethod->domain_type)
+ || ((t1->u.kmethod->arg_types == NULL)
+ != (t2->u.kmethod->arg_types == NULL)))
+ ret = false;
+ else if (t1->u.kmethod->arg_types == NULL)
+ ret = true;
+ else
+ {
+ struct debug_type **a1, **a2;
+
+ a1 = t1->u.kmethod->arg_types;
+ a2 = t2->u.kmethod->arg_types;
+ while (*a1 != NULL && *a2 != NULL)
+ {
+ if (! debug_type_samep (info, *a1, *a2))
+ break;
+ ++a1;
+ ++a2;
+ }
+ ret = *a1 == NULL && *a2 == NULL;
+ }
+ break;
+
+ case DEBUG_KIND_CONST:
+ ret = debug_type_samep (info, t1->u.kconst, t2->u.kconst);
+ break;
+
+ case DEBUG_KIND_VOLATILE:
+ ret = debug_type_samep (info, t1->u.kvolatile, t2->u.kvolatile);
+ break;
+
+ case DEBUG_KIND_NAMED:
+ case DEBUG_KIND_TAGGED:
+ ret = (strcmp (t1->u.knamed->name->name, t2->u.knamed->name->name) == 0
+ && debug_type_samep (info, t1->u.knamed->type,
+ t2->u.knamed->type));
+ break;
+ }
+
+ info->compare_list = top.next;
+
+ return ret;
+}
+
+/* See if two classes are the same. This is a subroutine of
+ debug_type_samep. */
+
+static boolean
+debug_class_type_samep (info, t1, t2)
+ struct debug_handle *info;
+ struct debug_type *t1;
+ struct debug_type *t2;
+{
+ struct debug_class_type *c1, *c2;
+
+ c1 = t1->u.kclass;
+ c2 = t2->u.kclass;
+
+ if ((c1->fields == NULL) != (c2->fields == NULL)
+ || (c1->baseclasses == NULL) != (c2->baseclasses == NULL)
+ || (c1->methods == NULL) != (c2->methods == NULL)
+ || (c1->vptrbase == NULL) != (c2->vptrbase == NULL))
+ return false;
+
+ if (c1->fields != NULL)
+ {
+ struct debug_field **pf1, **pf2;
+
+ for (pf1 = c1->fields, pf2 = c2->fields;
+ *pf1 != NULL && *pf2 != NULL;
+ pf1++, pf2++)
+ {
+ struct debug_field *f1, *f2;
+
+ f1 = *pf1;
+ f2 = *pf2;
+ if (f1->name[0] != f2->name[0]
+ || f1->visibility != f2->visibility
+ || f1->static_member != f2->static_member)
+ return false;
+ if (f1->static_member)
+ {
+ if (strcmp (f1->u.s.physname, f2->u.s.physname) != 0)
+ return false;
+ }
+ else
+ {
+ if (f1->u.f.bitpos != f2->u.f.bitpos
+ || f1->u.f.bitsize != f2->u.f.bitsize)
+ return false;
+ }
+ /* We do the checks which require function calls last. We
+ don't require that the types of fields have the same
+ names, since that sometimes fails in the presence of
+ typedefs and we really don't care. */
+ if (strcmp (f1->name, f2->name) != 0
+ || ! debug_type_samep (info,
+ debug_get_real_type ((PTR) info,
+ f1->type, NULL),
+ debug_get_real_type ((PTR) info,
+ f2->type, NULL)))
+ return false;
+ }
+ if (*pf1 != NULL || *pf2 != NULL)
+ return false;
+ }
+
+ if (c1->vptrbase != NULL)
+ {
+ if (! debug_type_samep (info, c1->vptrbase, c2->vptrbase))
+ return false;
+ }
+
+ if (c1->baseclasses != NULL)
+ {
+ struct debug_baseclass **pb1, **pb2;
+
+ for (pb1 = c1->baseclasses, pb2 = c2->baseclasses;
+ *pb1 != NULL && *pb2 != NULL;
+ ++pb1, ++pb2)
+ {
+ struct debug_baseclass *b1, *b2;
+
+ b1 = *pb1;
+ b2 = *pb2;
+ if (b1->bitpos != b2->bitpos
+ || b1->virtual != b2->virtual
+ || b1->visibility != b2->visibility
+ || ! debug_type_samep (info, b1->type, b2->type))
+ return false;
+ }
+ if (*pb1 != NULL || *pb2 != NULL)
+ return false;
+ }
+
+ if (c1->methods != NULL)
+ {
+ struct debug_method **pm1, **pm2;
+
+ for (pm1 = c1->methods, pm2 = c2->methods;
+ *pm1 != NULL && *pm2 != NULL;
+ ++pm1, ++pm2)
+ {
+ struct debug_method *m1, *m2;
+
+ m1 = *pm1;
+ m2 = *pm2;
+ if (m1->name[0] != m2->name[0]
+ || strcmp (m1->name, m2->name) != 0
+ || (m1->variants == NULL) != (m2->variants == NULL))
+ return false;
+ if (m1->variants == NULL)
+ {
+ struct debug_method_variant **pv1, **pv2;
+
+ for (pv1 = m1->variants, pv2 = m2->variants;
+ *pv1 != NULL && *pv2 != NULL;
+ ++pv1, ++pv2)
+ {
+ struct debug_method_variant *v1, *v2;
+
+ v1 = *pv1;
+ v2 = *pv2;
+ if (v1->physname[0] != v2->physname[0]
+ || v1->visibility != v2->visibility
+ || v1->constp != v2->constp
+ || v1->volatilep != v2->volatilep
+ || v1->voffset != v2->voffset
+ || (v1->context == NULL) != (v2->context == NULL)
+ || strcmp (v1->physname, v2->physname) != 0
+ || ! debug_type_samep (info, v1->type, v2->type))
+ return false;
+ if (v1->context != NULL)
+ {
+ if (! debug_type_samep (info, v1->context,
+ v2->context))
+ return false;
+ }
+ }
+ if (*pv1 != NULL || *pv2 != NULL)
+ return false;
+ }
+ }
+ if (*pm1 != NULL || *pm2 != NULL)
+ return false;
+ }
+
+ return true;
+}