| # Copyright 2020-2021 Free Software Foundation, Inc. |
| |
| # 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 3 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, see <http://www.gnu.org/licenses/>. |
| |
| # Test to reproduce the crash described in PR 26693. The following DWARF was |
| # crashing GDB while loading partial symbols: a DW_TAG_subprogram with a |
| # DW_AT_specification (pointing to another subprogram), without a DW_AT_name |
| # and with a template parameter (DW_TAG_template_type_parameter). More |
| # precisely, the crash was happening when trying to compute the full name of the |
| # subprogram. |
| |
| load_lib dwarf.exp |
| |
| if {![dwarf2_support]} { |
| return 0 |
| } |
| |
| standard_testfile main.c .S |
| |
| lassign [function_range main ${srcdir}/${subdir}/${srcfile}] \ |
| main_start main_length |
| |
| set asm_file [standard_output_file $srcfile2] |
| Dwarf::assemble $asm_file { |
| global main_start main_length |
| |
| cu { label cu_start } { |
| DW_TAG_compile_unit { |
| {DW_AT_language @DW_LANG_C_plus_plus} |
| } { |
| declare_labels templated_subprogram int |
| |
| int: DW_TAG_base_type { |
| {DW_AT_name "int"} |
| {DW_AT_byte_size 4 DW_FORM_data1} |
| {DW_AT_encoding @DW_ATE_signed} |
| } |
| |
| # The templated subprogram. |
| templated_subprogram: DW_TAG_subprogram { |
| {DW_AT_name "apply"} |
| } |
| |
| # The template specialization. |
| # |
| # The low and high PC are phony: we just need an address range that |
| # is valid in the program, so we use the main function's range. |
| DW_TAG_subprogram { |
| {DW_AT_specification :$templated_subprogram} |
| {MACRO_AT_range main} |
| } { |
| DW_TAG_template_type_param { |
| {DW_AT_name "T"} |
| {DW_AT_type :$int DW_FORM_ref4} |
| } |
| } |
| } |
| } |
| |
| aranges {} cu_start { |
| arange {} "$main_start" "$main_length" |
| } |
| } |
| |
| if { [prepare_for_testing "failed to prepare" ${testfile} \ |
| [list $srcfile $asm_file] {nodebug}] } { |
| return -1 |
| } |
| |
| if ![runto_main] { |
| return -1 |
| } |
| |
| # Just a sanity check to make sure GDB slurped the symbols correctly. |
| gdb_test "print apply<int>" " = {void \\(void\\)} $hex <apply<int>\\(\\)>" |