+2014-05-13 David Malcolm <dmalcolm@redhat.com>
+
+ * gengtype-parse.c (require3): Eliminate in favor of...
+ (require4): New.
+ (require_template_declaration): Update to support optional single *
+ on a type.
+
+ * gengtype.c (get_ultimate_base_class): Add a non-const overload.
+ (create_user_defined_type): Handle a single level of explicit
+ pointerness within template arguments.
+ (struct write_types_data): Add field "kind".
+ (filter_type_name): Handle "*" character.
+ (write_user_func_for_structure_ptr): Require a write_types_data
+ rather than just a prefix string, so that we can look up the kind
+ of the wtd and use it as an index into wrote_user_func_for_ptr,
+ ensuring that such functions are written at most once. Support
+ subclasses by invoking the marking function of the ultimate base
+ class.
+ (write_user_func_for_structure_body): Require a write_types_data
+ rather than just a prefix string, so that we can pass this to
+ write_user_func_for_structure_ptr.
+ (write_func_for_structure): Likewise.
+ (ggc_wtd): Add initializer of new "kind" field.
+ (pch_wtd): Likewise.
+
+ * gengtype.h (enum write_types_kinds): New.
+ (struct type): Add field wrote_user_func_for_ptr to the "s"
+ union member.
+
2014-05-13 Richard Sandiford <r.sandiford@uk.ibm.com>
* fold-const.c (optimize_bit_field_compare): Use wi:: operations
return v;
}
-/* If the next token does not have one of the codes T1, T2 or T3, report a
+/* If the next token does not have one of the codes T1, T2, T3 or T4, report a
parse error; otherwise return the token's value. */
static const char *
-require3 (int t1, int t2, int t3)
+require4 (int t1, int t2, int t3, int t4)
{
int u = token ();
const char *v = advance ();
- if (u != t1 && u != t2 && u != t3)
+ if (u != t1 && u != t2 && u != t3 && u != t4)
{
- parse_error ("expected %s, %s or %s, have %s",
+ parse_error ("expected %s, %s, %s or %s, have %s",
print_token (t1, 0), print_token (t2, 0),
- print_token (t3, 0), print_token (u, v));
+ print_token (t3, 0), print_token (t4, 0),
+ print_token (u, v));
return 0;
}
return v;
/* The caller has detected a template declaration that starts
with TMPL_NAME. Parse up to the closing '>'. This recognizes
- simple template declarations of the form ID<ID1,ID2,...,IDn>.
+ simple template declarations of the form ID<ID1,ID2,...,IDn>,
+ potentially with a single level of indirection e.g.
+ ID<ID1 *, ID2, ID3 *, ..., IDn>.
It does not try to parse anything more sophisticated than that.
Returns the template declaration string "ID<ID1,ID2,...,IDn>". */
require_template_declaration (const char *tmpl_name)
{
char *str;
+ int num_indirections = 0;
/* Recognize the opening '<'. */
require ('<');
depth -= 1;
continue;
}
- const char *id = require3 (SCALAR, ID, ',');
+ const char *id = require4 (SCALAR, ID, '*', ',');
if (id == NULL)
- id = ",";
+ {
+ if (T.code == '*')
+ {
+ id = "*";
+ if (num_indirections++)
+ parse_error ("only one level of indirection is supported"
+ " in template arguments");
+ }
+ else
+ id = ",";
+ }
+ else
+ num_indirections = 0;
str = concat (str, id, (char *) 0);
}
return str;
s = s->u.s.base_class;
return s;
}
+
+static type_p
+get_ultimate_base_class (type_p s)
+{
+ while (s->u.s.base_class)
+ s = s->u.s.base_class;
+ return s;
+}
\f
/* Input file handling. */
/* We only accept simple template declarations (see
require_template_declaration), so we only need to parse a
comma-separated list of strings, implicitly assumed to
- be type names. */
+ be type names, potentially with "*" characters. */
char *arg = open_bracket + 1;
char *type_id = strtok (arg, ",>");
pair_p fields = 0;
{
/* Create a new field for every type found inside the template
parameter list. */
- const char *field_name = xstrdup (type_id);
- type_p arg_type = resolve_typedef (field_name, pos);
+
+ /* Support a single trailing "*" character. */
+ const char *star = strchr (type_id, '*');
+ int is_ptr = (star != NULL);
+ size_t offset_to_star = star - type_id;
+ if (is_ptr)
+ offset_to_star = star - type_id;
+
+ char *field_name = xstrdup (type_id);
+
+ type_p arg_type;
+ if (is_ptr)
+ {
+ /* Strip off the first '*' character (and any subsequent text). */
+ *(field_name + offset_to_star) = '\0';
+
+ arg_type = find_structure (field_name, TYPE_STRUCT);
+ arg_type = create_pointer (arg_type);
+ }
+ else
+ arg_type = resolve_typedef (field_name, pos);
+
fields = create_field_at (fields, arg_type, field_name, 0, pos);
type_id = strtok (0, ",>");
}
const char *reorder_note_routine;
const char *comment;
int skip_hooks; /* skip hook generation if non zero */
+ enum write_types_kinds kind;
};
static void output_escaped_param (struct walk_type_data *d,
size_t i;
char *s = xstrdup (type_name);
for (i = 0; i < strlen (s); i++)
- if (s[i] == '<' || s[i] == '>' || s[i] == ':' || s[i] == ',')
+ if (s[i] == '<' || s[i] == '>' || s[i] == ':' || s[i] == ','
+ || s[i] == '*')
s[i] = '_';
return s;
}
/* Write on OF a user-callable routine to act as an entry point for
the marking routine for S, generated by write_func_for_structure.
- PREFIX is the prefix to use to distinguish ggc and pch markers. */
+ WTD distinguishes between ggc and pch markers. */
static void
-write_user_func_for_structure_ptr (outf_p of, type_p s, const char *prefix)
+write_user_func_for_structure_ptr (outf_p of, type_p s, const write_types_data *wtd)
{
/* Parameterized structures are not supported in user markers. There
is no way for the marker function to know which specific type
break;
}
+ DBGPRINTF ("write_user_func_for_structure_ptr: %s %s", s->u.s.tag,
+ wtd->prefix);
+
+ /* Only write the function once. */
+ if (s->u.s.wrote_user_func_for_ptr[wtd->kind])
+ return;
+ s->u.s.wrote_user_func_for_ptr[wtd->kind] = true;
+
oprintf (of, "\nvoid\n");
- oprintf (of, "gt_%sx (", prefix);
+ oprintf (of, "gt_%sx (", wtd->prefix);
write_type_decl (of, s);
oprintf (of, " *& x)\n");
oprintf (of, "{\n");
oprintf (of, " if (x)\n ");
- write_marker_function_name (of, alias_of ? alias_of : s, prefix);
+ write_marker_function_name (of,
+ alias_of ? alias_of : get_ultimate_base_class (s),
+ wtd->prefix);
oprintf (of, " ((void *) x);\n");
oprintf (of, "}\n");
}
which just marks the fields of T. */
static void
-write_user_marking_functions (type_p s, const char *prefix,
+write_user_marking_functions (type_p s,
+ const write_types_data *w,
struct walk_type_data *d)
{
gcc_assert (s->kind == TYPE_USER_STRUCT);
{
type_p pointed_to_type = fld_type->u.p;
if (union_or_struct_p (pointed_to_type))
- write_user_func_for_structure_ptr (d->of, pointed_to_type, prefix);
+ write_user_func_for_structure_ptr (d->of, pointed_to_type, w);
}
else if (union_or_struct_p (fld_type))
- write_user_func_for_structure_body (fld_type, prefix, d);
+ write_user_func_for_structure_body (fld_type, w->prefix, d);
}
}
oprintf (d.of, "}\n");
if (orig_s->kind == TYPE_USER_STRUCT)
- write_user_marking_functions (orig_s, wtd->prefix, &d);
+ write_user_marking_functions (orig_s, wtd, &d);
}
static const struct write_types_data ggc_wtd = {
"ggc_m", NULL, "ggc_mark", "ggc_test_and_set_mark", NULL,
"GC marker procedures. ",
- FALSE
+ FALSE, WTK_GGC
};
static const struct write_types_data pch_wtd = {
"pch_n", "pch_p", "gt_pch_note_object", "gt_pch_note_object",
"gt_pch_note_reorder",
"PCH type-walking procedures. ",
- TRUE
+ TRUE, WTK_PCH
};
/* Write out the local pointer-walking routines. */
projects / platform / upstream / linaro-gcc.git / commitdiff