/* debug.c -- Handle generic debugging information.
- Copyright (C) 1995, 1996 Free Software Foundation, Inc.
+ Copyright 1995, 1996, 1997, 1998, 2000, 2002 Free Software Foundation, Inc.
Written by Ian Lance Taylor <ian@cygnus.com>.
This file is part of GNU Binutils.
struct debug_lineno *current_lineno;
/* Mark. This is used by debug_write. */
unsigned int mark;
- /* Another mark used by debug_write. */
- unsigned int class_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. */
{
/* NULL terminated array of fields. */
debug_field *fields;
- /* A mark field used to avoid recursively printing out structs. */
+ /* 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 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 (1)
+#define VOFFSET_STATIC_METHOD ((bfd_vma) -1)
/* Context of a virtual method function. */
struct debug_type *context;
};
} 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 *));
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));
+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_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 *));
\f
/* Issue an error message. */
static struct debug_name *
debug_add_to_namespace (info, nsp, name, kind, linkage)
- struct debug_handle *info;
+ struct debug_handle *info ATTRIBUTE_UNUSED;
struct debug_namespace **nsp;
const char *name;
enum debug_object_kind kind;
if (info->current_unit == NULL
|| info->current_file == NULL)
{
- debug_error ("debug_add_to_current_namespace: no current file");
+ debug_error (_("debug_add_to_current_namespace: no current file"));
return NULL;
}
if (info->current_unit == NULL)
{
- debug_error ("debug_start_source: no debug_set_filename call");
+ debug_error (_("debug_start_source: no debug_set_filename call"));
return false;
}
if (info->current_unit == NULL)
{
- debug_error ("debug_record_function: no debug_set_filename call");
+ debug_error (_("debug_record_function: no debug_set_filename call"));
return false;
}
if (info->current_unit == NULL
|| info->current_function == NULL)
{
- debug_error ("debug_record_parameter: no current function");
+ debug_error (_("debug_record_parameter: no current function"));
return false;
}
|| info->current_block == NULL
|| info->current_function == NULL)
{
- debug_error ("debug_end_function: no current function");
+ 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");
+ debug_error (_("debug_end_function: some blocks were not closed"));
return false;
}
if (info->current_unit == NULL
|| info->current_block == NULL)
{
- debug_error ("debug_start_block: no current block");
+ debug_error (_("debug_start_block: no current block"));
return false;
}
if (info->current_unit == NULL
|| info->current_block == NULL)
{
- debug_error ("debug_end_block: no current block");
+ 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");
+ debug_error (_("debug_end_block: attempt to close top level block"));
return false;
}
if (info->current_unit == NULL)
{
- debug_error ("debug_record_line: no current unit");
+ debug_error (_("debug_record_line: no current unit"));
return false;
}
boolean
debug_start_common_block (handle, name)
- PTR handle;
- const char *name;
+ PTR handle ATTRIBUTE_UNUSED;
+ const char *name ATTRIBUTE_UNUSED;
{
/* FIXME */
- debug_error ("debug_start_common_block: not implemented");
+ debug_error (_("debug_start_common_block: not implemented"));
return false;
}
boolean
debug_end_common_block (handle, name)
- PTR handle;
- const char *name;
+ PTR handle ATTRIBUTE_UNUSED;
+ const char *name ATTRIBUTE_UNUSED;
{
/* FIXME */
- debug_error ("debug_end_common_block: not implemented");
+ debug_error (_("debug_end_common_block: not implemented"));
return false;
}
boolean
debug_record_label (handle, name, type, addr)
- PTR handle;
- const char *name;
- debug_type type;
- bfd_vma addr;
+ PTR handle ATTRIBUTE_UNUSED;
+ const char *name ATTRIBUTE_UNUSED;
+ debug_type type ATTRIBUTE_UNUSED;
+ bfd_vma addr ATTRIBUTE_UNUSED;
{
/* FIXME. */
- debug_error ("debug_record_label not implemented");
+ debug_error (_("debug_record_label: not implemented"));
return false;
}
if (info->current_unit == NULL
|| info->current_file == NULL)
{
- debug_error ("debug_record_variable: no current file");
+ debug_error (_("debug_record_variable: no current file"));
return false;
}
{
if (info->current_block == NULL)
{
- debug_error ("debug_record_variable: no current block");
+ debug_error (_("debug_record_variable: no current block"));
return false;
}
nsp = &info->current_block->locals;
n->u.variable = v;
- return true;
+ 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;
+ struct debug_handle *info ATTRIBUTE_UNUSED;
enum debug_type_kind kind;
unsigned int size;
{
break;
default:
- debug_error ("debug_make_undefined_type: unsupported kind");
+ debug_error (_("debug_make_undefined_type: unsupported kind"));
return DEBUG_TYPE_NULL;
}
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;
+ PTR handle ATTRIBUTE_UNUSED;
debug_type type;
bfd_vma bitpos;
boolean virtual;
enum debug_visibility visibility;
-{
+{
struct debug_baseclass *b;
b = (struct debug_baseclass *) xmalloc (sizeof *b);
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;
+ PTR handle ATTRIBUTE_UNUSED;
const char *name;
debug_type type;
bfd_vma bitpos;
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;
+ PTR handle ATTRIBUTE_UNUSED;
const char *name;
debug_type type;
const char *physname;
/* 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;
+ PTR handle ATTRIBUTE_UNUSED;
const char *name;
debug_method_variant *variants;
{
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;
+ PTR handle ATTRIBUTE_UNUSED;
const char *physname;
debug_type type;
enum debug_visibility visibility;
debug_method_variant
debug_make_static_method_variant (handle, physname, type, visibility,
constp, volatilep)
- PTR handle;
+ PTR handle ATTRIBUTE_UNUSED;
const char *physname;
debug_type type;
enum debug_visibility visibility;
if (info->current_unit == NULL
|| info->current_file == NULL)
{
- debug_error ("debug_record_variable: no current file");
- return false;
+ debug_error (_("debug_name_type: no current file"));
+ return DEBUG_TYPE_NULL;
}
t = debug_make_type (info, DEBUG_KIND_NAMED, 0);
nm = debug_add_to_namespace (info, &info->current_file->globals, name,
DEBUG_OBJECT_TYPE, DEBUG_LINKAGE_NONE);
if (nm == NULL)
- return false;
+ return DEBUG_TYPE_NULL;
nm->u.type = t;
if (info->current_file == NULL)
{
- debug_error ("debug_tag_type: no current file");
+ debug_error (_("debug_tag_type: no current file"));
return DEBUG_TYPE_NULL;
}
{
if (strcmp (type->u.knamed->name->name, name) == 0)
return type;
- debug_error ("debug_tag_type: extra tag attempted");
+ debug_error (_("debug_tag_type: extra tag attempted"));
return DEBUG_TYPE_NULL;
}
nm = debug_add_to_namespace (info, &info->current_file->globals, name,
DEBUG_OBJECT_TAG, DEBUG_LINKAGE_NONE);
if (nm == NULL)
- return false;
+ return DEBUG_TYPE_NULL;
nm->u.tag = t;
/* Record the size of a given type. */
-/*ARGSUSED*/
boolean
debug_record_type_size (handle, type, size)
- PTR handle;
+ PTR handle ATTRIBUTE_UNUSED;
debug_type type;
unsigned int size;
{
if (type->size != 0 && type->size != size)
- fprintf (stderr, "Warning: changing type size from %d to %d\n",
+ fprintf (stderr, _("Warning: changing type size from %d to %d\n"),
type->size, size);
type->size = size;
if (info->current_unit == NULL)
{
- debug_error ("debug_find_named_type: no current compilation unit");
+ debug_error (_("debug_find_named_type: no current compilation unit"));
return DEBUG_TYPE_NULL;
}
}
}
- return DEBUG_TYPE_NULL;
+ return DEBUG_TYPE_NULL;
}
/* Find a tagged type. */
return DEBUG_TYPE_NULL;
}
-/* Get a base type. */
+/* 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)
+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);
+ 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);
+ return debug_get_real_type (handle, type->u.knamed->type, &rl);
}
/*NOTREACHED*/
}
{
if (type == NULL)
return DEBUG_KIND_ILLEGAL;
- type = debug_get_real_type (handle, type);
+ type = debug_get_real_type (handle, type, NULL);
+ if (type == NULL)
+ return DEBUG_KIND_ILLEGAL;
return type->kind;
}
{
if (type == NULL)
return DEBUG_TYPE_NULL;
- type = debug_get_real_type (handle, type);
+ type = debug_get_real_type (handle, type, NULL);
+ if (type == NULL)
+ return DEBUG_TYPE_NULL;
switch (type->kind)
{
default:
case DEBUG_KIND_METHOD:
return type->u.kmethod->return_type;
}
- /*NOTREACHED*/
+ /*NOTREACHED*/
}
/* Get the parameter types of a function or method type (except that
{
if (type == NULL)
return NULL;
- type = debug_get_real_type (handle, type);
+ type = debug_get_real_type (handle, type, NULL);
+ if (type == NULL)
+ return NULL;
switch (type->kind)
{
default:
{
if (type == NULL)
return NULL;
- type = debug_get_real_type (handle, type);
+ type = debug_get_real_type (handle, type, NULL);
+ if (type == NULL)
+ return NULL;
switch (type->kind)
{
default:
{
if (type == NULL)
return NULL;
- type = debug_get_real_type (handle, type);
+ type = debug_get_real_type (handle, type, NULL);
+ if (type == NULL)
+ return NULL;
switch (type->kind)
{
default:
/* Get the type of a field. */
-/*ARGSUSED*/
debug_type
debug_get_field_type (handle, field)
- PTR handle;
+ PTR handle ATTRIBUTE_UNUSED;
debug_field field;
{
if (field == NULL)
/* Get the name of a field. */
-/*ARGSUSED*/
const char *
debug_get_field_name (handle, field)
- PTR handle;
+ PTR handle ATTRIBUTE_UNUSED;
debug_field field;
{
if (field == NULL)
/* Get the bit position of a field. */
-/*ARGSUSED*/
bfd_vma
debug_get_field_bitpos (handle, field)
- PTR handle;
+ PTR handle ATTRIBUTE_UNUSED;
debug_field field;
{
if (field == NULL || field->static_member)
/* Get the bit size of a field. */
-/*ARGSUSED*/
bfd_vma
debug_get_field_bitsize (handle, field)
- PTR handle;
+ PTR handle ATTRIBUTE_UNUSED;
debug_field field;
{
if (field == NULL || field->static_member)
/* Get the visibility of a field. */
-/*ARGSUSED*/
enum debug_visibility
debug_get_field_visibility (handle, field)
- PTR handle;
+ PTR handle ATTRIBUTE_UNUSED;
debug_field field;
{
if (field == NULL)
const char *
debug_get_field_physname (handle, field)
- PTR handle;
+ PTR handle ATTRIBUTE_UNUSED;
debug_field field;
{
if (field == NULL || ! field->static_member)
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;
- struct debug_lineno *l;
+
+ info->current_write_lineno = u->linenos;
+ info->current_write_lineno_index = 0;
if (! (*fns->start_compilation_unit) (fhandle, u->files->filename))
return false;
}
}
- for (l = u->linenos; l != NULL; l = l->next)
- {
- unsigned int i;
-
- for (i = 0; i < DEBUG_LINENO_COUNT; i++)
- {
- if (l->linenos[i] == (unsigned long) -1)
- break;
- if (! (*fns->lineno) (fhandle, l->file->filename, l->linenos[i],
- l->addrs[i]))
- 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;
PTR fhandle;
struct debug_name *n;
{
- /* The class_mark field is used to prevent recursively outputting a
- struct or class. */
- ++info->class_mark;
-
switch (n->kind)
{
case DEBUG_OBJECT_TYPE:
{
unsigned int i;
int is;
- const char *tag;
+ const char *tag = NULL;
/* 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
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;
+ }
- real = debug_get_real_type ((PTR) info, type);
- return (*fns->tag_type) (fhandle, type->u.knamed->name->name, 0,
+ return (*fns->tag_type) (fhandle, type->u.knamed->name->name, id,
real->kind);
}
}
if (name != NULL)
name->mark = info->mark;
- tag = NULL;
if (name != NULL
&& type->kind != DEBUG_KIND_NAMED
&& type->kind != DEBUG_KIND_TAGGED)
switch (type->kind)
{
case DEBUG_KIND_ILLEGAL:
- debug_error ("debug_write_type: illegal type encountered");
+ debug_error (_("debug_write_type: illegal type encountered"));
return false;
case DEBUG_KIND_INDIRECT:
if (*type->u.kindirect->slot == DEBUG_TYPE_NULL)
case DEBUG_KIND_UNION:
if (type->u.kclass != NULL)
{
- if (info->class_mark == type->u.kclass->mark
- || type->u.kclass->id > info->base_id)
+ 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,
return (*fns->tag_type) (fhandle, tag, type->u.kclass->id,
type->kind);
}
- type->u.kclass->mark = info->class_mark;
- ++info->class_id;
- type->u.kclass->id = info->class_id;
+ type->u.kclass->mark = info->mark;
}
if (! (*fns->start_struct_type) (fhandle, tag,
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
(struct debug_name *) NULL))
return false;
}
- if (! debug_write_type (info, fns, fhandle,
- type->u.kfunction->return_type,
- (struct debug_name *) NULL))
- return false;
return (*fns->function_type) (fhandle, is,
type->u.kfunction->varargs);
case DEBUG_KIND_REFERENCE:
}
else
{
- if (info->class_mark == type->u.kclass->mark
- || type->u.kclass->id > info->base_id)
+ 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
return (*fns->tag_type) (fhandle, tag, type->u.kclass->id,
type->kind);
}
- type->u.kclass->mark = info->class_mark;
- ++info->class_id;
- id = info->class_id;
- type->u.kclass->id = id;
+ type->u.kclass->mark = info->mark;
+ id = type->u.kclass->id;
vptrbase = type->u.kclass->vptrbase;
if (vptrbase != NULL && vptrbase != type)
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;
struct debug_name *n;
struct debug_block *b;
- if (! (*fns->start_block) (fhandle, block->start))
+ 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)
return false;
}
- return (*fns->end_block) (fhandle, block->end);
+ 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 = ⊤
+
+ 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;
}
projects / deliverable / binutils-gdb.git / blobdiff