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--- binutils.orig/libiberty/cp-demangle.c 2019-04-10 10:31:27.854997707 +0100
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+++ binutils-2.31.1/libiberty/cp-demangle.c 2019-04-10 16:00:35.820350978 +0100
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@@ -858,7 +858,7 @@ CP_STATIC_IF_GLIBCPP_V3
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int
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cplus_demangle_fill_name (struct demangle_component *p, const char *s, int len)
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{
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- if (p == NULL || s == NULL || len == 0)
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+ if (p == NULL || s == NULL || len <= 0)
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return 0;
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p->d_printing = 0;
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p->type = DEMANGLE_COMPONENT_NAME;
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@@ -4032,7 +4032,7 @@ d_growable_string_callback_adapter (cons
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are larger than the actual numbers encountered. */
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static void
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-d_count_templates_scopes (int *num_templates, int *num_scopes,
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+d_count_templates_scopes (struct d_print_info *dpi,
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const struct demangle_component *dc)
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{
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if (dc == NULL)
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@@ -4052,13 +4052,13 @@ d_count_templates_scopes (int *num_templ
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break;
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case DEMANGLE_COMPONENT_TEMPLATE:
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- (*num_templates)++;
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+ dpi->num_copy_templates++;
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goto recurse_left_right;
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case DEMANGLE_COMPONENT_REFERENCE:
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case DEMANGLE_COMPONENT_RVALUE_REFERENCE:
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if (d_left (dc)->type == DEMANGLE_COMPONENT_TEMPLATE_PARAM)
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- (*num_scopes)++;
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+ dpi->num_saved_scopes++;
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goto recurse_left_right;
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case DEMANGLE_COMPONENT_QUAL_NAME:
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@@ -4122,42 +4122,42 @@ d_count_templates_scopes (int *num_templ
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case DEMANGLE_COMPONENT_TAGGED_NAME:
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case DEMANGLE_COMPONENT_CLONE:
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recurse_left_right:
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- d_count_templates_scopes (num_templates, num_scopes,
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- d_left (dc));
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- d_count_templates_scopes (num_templates, num_scopes,
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- d_right (dc));
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+ /* PR 89394 - Check for too much recursion. */
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+ if (dpi->recursion > DEMANGLE_RECURSION_LIMIT)
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+ /* FIXME: There ought to be a way to report to the
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+ user that the recursion limit has been reached. */
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+ return;
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+
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+ ++ dpi->recursion;
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+ d_count_templates_scopes (dpi, d_left (dc));
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+ d_count_templates_scopes (dpi, d_right (dc));
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+ -- dpi->recursion;
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break;
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case DEMANGLE_COMPONENT_CTOR:
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- d_count_templates_scopes (num_templates, num_scopes,
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- dc->u.s_ctor.name);
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+ d_count_templates_scopes (dpi, dc->u.s_ctor.name);
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break;
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case DEMANGLE_COMPONENT_DTOR:
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- d_count_templates_scopes (num_templates, num_scopes,
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- dc->u.s_dtor.name);
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+ d_count_templates_scopes (dpi, dc->u.s_dtor.name);
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break;
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case DEMANGLE_COMPONENT_EXTENDED_OPERATOR:
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- d_count_templates_scopes (num_templates, num_scopes,
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- dc->u.s_extended_operator.name);
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+ d_count_templates_scopes (dpi, dc->u.s_extended_operator.name);
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break;
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case DEMANGLE_COMPONENT_FIXED_TYPE:
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- d_count_templates_scopes (num_templates, num_scopes,
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- dc->u.s_fixed.length);
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+ d_count_templates_scopes (dpi, dc->u.s_fixed.length);
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break;
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case DEMANGLE_COMPONENT_GLOBAL_CONSTRUCTORS:
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case DEMANGLE_COMPONENT_GLOBAL_DESTRUCTORS:
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- d_count_templates_scopes (num_templates, num_scopes,
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- d_left (dc));
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+ d_count_templates_scopes (dpi, d_left (dc));
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break;
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case DEMANGLE_COMPONENT_LAMBDA:
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case DEMANGLE_COMPONENT_DEFAULT_ARG:
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- d_count_templates_scopes (num_templates, num_scopes,
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- dc->u.s_unary_num.sub);
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+ d_count_templates_scopes (dpi, dc->u.s_unary_num.sub);
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break;
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}
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}
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@@ -4192,8 +4192,12 @@ d_print_init (struct d_print_info *dpi,
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dpi->next_copy_template = 0;
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dpi->num_copy_templates = 0;
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- d_count_templates_scopes (&dpi->num_copy_templates,
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- &dpi->num_saved_scopes, dc);
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+ d_count_templates_scopes (dpi, dc);
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+ /* If we did not reach the recursion limit, then reset the
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+ current recursion value back to 0, so that we can print
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+ the templates. */
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+ if (dpi->recursion < DEMANGLE_RECURSION_LIMIT)
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+ dpi->recursion = 0;
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dpi->num_copy_templates *= dpi->num_saved_scopes;
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dpi->current_template = NULL;
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