+ /* Template parameters may be specified in the DIE's DW_AT_name, or
+ as children with DW_TAG_template_type_param or
+ DW_TAG_value_type_param. If the latter, add them to the name
+ here. If the name already has template parameters, then
+ skip this step; some versions of GCC emit both, and
+ it is more efficient to use the pre-computed name.
+
+ Something to keep in mind about this process: it is very
+ unlikely, or in some cases downright impossible, to produce
+ something that will match the mangled name of a function.
+ If the definition of the function has the same debug info,
+ we should be able to match up with it anyway. But fallbacks
+ using the minimal symbol, for instance to find a method
+ implemented in a stripped copy of libstdc++, will not work.
+ If we do not have debug info for the definition, we will have to
+ match them up some other way.
+
+ When we do name matching there is a related problem with function
+ templates; two instantiated function templates are allowed to
+ differ only by their return types, which we do not add here. */
+
+ if (cu->language == language_cplus && strchr (name, '<') == NULL)
+ {
+ struct attribute *attr;
+ struct die_info *child;
+ int first = 1;
+
+ die->building_fullname = 1;
+
+ for (child = die->child; child != NULL; child = child->sibling)
+ {
+ struct type *type;
+ long value;
+ gdb_byte *bytes;
+ struct dwarf2_locexpr_baton *baton;
+ struct value *v;
+
+ if (child->tag != DW_TAG_template_type_param
+ && child->tag != DW_TAG_template_value_param)
+ continue;
+
+ if (first)
+ {
+ fputs_unfiltered ("<", buf);
+ first = 0;
+ }
+ else
+ fputs_unfiltered (", ", buf);
+
+ attr = dwarf2_attr (child, DW_AT_type, cu);
+ if (attr == NULL)
+ {
+ complaint (&symfile_complaints,
+ _("template parameter missing DW_AT_type"));
+ fputs_unfiltered ("UNKNOWN_TYPE", buf);
+ continue;
+ }
+ type = die_type (child, cu);
+
+ if (child->tag == DW_TAG_template_type_param)
+ {
+ c_print_type (type, "", buf, -1, 0);
+ continue;
+ }
+
+ attr = dwarf2_attr (child, DW_AT_const_value, cu);
+ if (attr == NULL)
+ {
+ complaint (&symfile_complaints,
+ _("template parameter missing DW_AT_const_value"));
+ fputs_unfiltered ("UNKNOWN_VALUE", buf);
+ continue;
+ }
+
+ dwarf2_const_value_attr (attr, type, name,
+ &cu->comp_unit_obstack, cu,
+ &value, &bytes, &baton);
+
+ if (TYPE_NOSIGN (type))
+ /* GDB prints characters as NUMBER 'CHAR'. If that's
+ changed, this can use value_print instead. */
+ c_printchar (value, type, buf);
+ else
+ {
+ struct value_print_options opts;
+
+ if (baton != NULL)
+ v = dwarf2_evaluate_loc_desc (type, NULL,
+ baton->data,
+ baton->size,
+ baton->per_cu);
+ else if (bytes != NULL)
+ {
+ v = allocate_value (type);
+ memcpy (value_contents_writeable (v), bytes,
+ TYPE_LENGTH (type));
+ }
+ else
+ v = value_from_longest (type, value);
+
+ /* Specify decimal so that we do not depend on the radix. */
+ get_formatted_print_options (&opts, 'd');
+ opts.raw = 1;
+ value_print (v, buf, &opts);
+ release_value (v);
+ value_free (v);
+ }
+ }
+
+ die->building_fullname = 0;
+
+ if (!first)
+ {
+ /* Close the argument list, with a space if necessary
+ (nested templates). */
+ char last_char = '\0';
+ ui_file_put (buf, do_ui_file_peek_last, &last_char);
+ if (last_char == '>')
+ fputs_unfiltered (" >", buf);
+ else
+ fputs_unfiltered (">", buf);
+ }
+ }
+
projects / deliverable / binutils-gdb.git / blobdiff